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Bhat S, Rousseau J, Michaud C, Lourenço CM, Stoler JM, Louie RJ, Clarkson LK, Lichty A, Koboldt DC, Reshmi SC, Sisodiya SM, Hoytema van Konijnenburg EMM, Koop K, van Hasselt PM, Démurger F, Dubourg C, Sullivan BR, Hughes SS, Thiffault I, Tremblay ES, Accogli A, Srour M, Blunck R, Campeau PM. Mono-allelic KCNB2 variants lead to a neurodevelopmental syndrome caused by altered channel inactivation. Am J Hum Genet 2024; 111:761-777. [PMID: 38503299 PMCID: PMC11023922 DOI: 10.1016/j.ajhg.2024.02.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 02/23/2024] [Accepted: 02/25/2024] [Indexed: 03/21/2024] Open
Abstract
Ion channels mediate voltage fluxes or action potentials that are central to the functioning of excitable cells such as neurons. The KCNB family of voltage-gated potassium channels (Kv) consists of two members (KCNB1 and KCNB2) encoded by KCNB1 and KCNB2, respectively. These channels are major contributors to delayed rectifier potassium currents arising from the neuronal soma which modulate overall excitability of neurons. In this study, we identified several mono-allelic pathogenic missense variants in KCNB2, in individuals with a neurodevelopmental syndrome with epilepsy and autism in some individuals. Recurrent dysmorphisms included a broad forehead, synophrys, and digital anomalies. Additionally, we selected three variants where genetic transmission has not been assessed, from two epilepsy studies, for inclusion in our experiments. We characterized channel properties of these variants by expressing them in oocytes of Xenopus laevis and conducting cut-open oocyte voltage clamp electrophysiology. Our datasets indicate no significant change in absolute conductance and conductance-voltage relationships of most disease variants as compared to wild type (WT), when expressed either alone or co-expressed with WT-KCNB2. However, variants c.1141A>G (p.Thr381Ala) and c.641C>T (p.Thr214Met) show complete abrogation of currents when expressed alone with the former exhibiting a left shift in activation midpoint when expressed alone or with WT-KCNB2. The variants we studied, nevertheless, show collective features of increased inactivation shifted to hyperpolarized potentials. We suggest that the effects of the variants on channel inactivation result in hyper-excitability of neurons, which contributes to disease manifestations.
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Affiliation(s)
- Shreyas Bhat
- Center for Interdisciplinary Research on Brain and Learning (CIRCA), Department of Physics and Department of Pharmacology and Physiology, Université de Montréal, Montréal, QC, Canada
| | - Justine Rousseau
- Centre de Recherche Du Centre Hospitalier Universitaire Sainte-Justine, Université de Montréal, Montréal, QC H3T 1C5, Canada
| | - Coralie Michaud
- Centre de Recherche Du Centre Hospitalier Universitaire Sainte-Justine, Université de Montréal, Montréal, QC H3T 1C5, Canada
| | | | - Joan M Stoler
- Division of Genetics and Genomics, Boston Children's Hospital, Boston, MA, USA
| | | | | | - Angie Lichty
- Greenwood Genetic Center, Greenwood, SC 29646, USA
| | - Daniel C Koboldt
- Steve and Cindy Rasmussen Institute for Genomic Medicine at Nationwide Children's Hospital, Columbus, OH, USA
| | - Shalini C Reshmi
- Steve and Cindy Rasmussen Institute for Genomic Medicine at Nationwide Children's Hospital, Columbus, OH, USA; Department of Pathology and Laboratory Medicine, Nationwide Children's Hospital, Columbus, OH, USA
| | - Sanjay M Sisodiya
- Department of Clinical and Experimental Epilepsy, University College London Queen Square Institute of Neurology, London WC1N 3BG, UK
| | | | - Klaas Koop
- Department of Metabolic Diseases, Wilhelmina Children's Hospital, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Peter M van Hasselt
- Department of Genetics, Section Metabolic Diagnostics, University Medical Center Utrecht, Utrecht, the Netherlands
| | | | - Christèle Dubourg
- Department of Molecular Genetics and Genomics, Rennes University Hospital, Rennes, France; Université de Rennes, CNRS, IGDR, UMR 6290 Rennes, France
| | - Bonnie R Sullivan
- Division of Clinical Genetics, Department of Pediatrics, Children's Mercy Kansas City, Kansas City, MO, USA
| | - Susan S Hughes
- Division of Clinical Genetics, Department of Pediatrics, Children's Mercy Kansas City, Kansas City, MO, USA
| | - Isabelle Thiffault
- Departments of Pediatrics and of Pathology and Laboratory Medicine, Children's Mercy Kansas City, Kansas City, MO, USA
| | - Elisabeth Simard Tremblay
- Department of Neurology and Neurosurgery, McGill University Health Centre, Montréal, QC, Canada; Department of Pediatrics, Division of Pediatric Neurology, McGill University, Montréal, QC, Canada
| | - Andrea Accogli
- Department of Specialized Medicine, Division of Medical Genetics, McGill University Health Centre, Montréal, QC, Canada; Department of Human Genetics, Faculty of Medicine, McGill University, Montral, QC H3A 1B1, Canada
| | - Myriam Srour
- Department of Pediatrics, Division of Pediatric Neurology, McGill University, Montréal, QC, Canada; Department of Human Genetics, Faculty of Medicine, McGill University, Montral, QC H3A 1B1, Canada
| | - Rikard Blunck
- Center for Interdisciplinary Research on Brain and Learning (CIRCA), Department of Physics and Department of Pharmacology and Physiology, Université de Montréal, Montréal, QC, Canada.
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Rousseau J, Tene Tadoum SB, Lavertu Jolin M, Nguyen TTM, Ajeawung NF, Flenniken AM, Nutter LMJ, Vukobradovic I, Rossignol E, Campeau PM. The ATP6V1B2 DDOD/DOORS-Associated p.Arg506* Variant Causes Hyperactivity and Seizures in Mice. Genes (Basel) 2023; 14:1538. [PMID: 37628590 PMCID: PMC10454733 DOI: 10.3390/genes14081538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 07/24/2023] [Accepted: 07/24/2023] [Indexed: 08/27/2023] Open
Abstract
The vacuolar H+-ATPase is a multisubunit enzyme which plays an essential role in the acidification and functions of lysosomes, endosomes, and synaptic vesicles. Many genes encoding subunits of V-ATPases, namely ATP6V0C, ATP6V1A, ATP6V0A1, and ATP6V1B2, have been associated with neurodevelopmental disorders and epilepsy. The autosomal dominant ATP6V1B2 p.Arg506* variant can cause both congenital deafness with onychodystrophy, autosomal dominant (DDOD) and deafness, onychodystrophy, osteodystrophy, mental retardation, and seizures syndromes (DOORS). Some but not all individuals with this truncating variant have intellectual disability and/or epilepsy, suggesting incomplete penetrance and/or variable expressivity. To further explore the impact of the p.Arg506* variant in neurodevelopment and epilepsy, we generated Atp6v1b2emR506* mutant mice and performed standardized phenotyping using the International Mouse Phenotyping Consortium (IMPC) pipeline. In addition, we assessed the EEG profile and seizure susceptibility of Atp6v1b2emR506* mice. Behavioral tests revealed that the mice present locomotor hyperactivity and show less anxiety-associated behaviors. Moreover, EEG analyses indicate that Atp6v1b2emR506* mutant mice have interictal epileptic activity and that both heterozygous (like patients) and homozygous mice have reduced seizure thresholds to pentylenetetrazol. Our results confirm that variants in ATP6V1B2 can cause seizures and that the Atp6v1b2emR506* heterozygous mouse model is a valuable tool to further explore the pathophysiology and potential treatments for vacuolar ATPases-associated epilepsy and disorders.
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Affiliation(s)
- Justine Rousseau
- CHU Sainte-Justine Research Centre, University of Montreal, Montreal, QC H3T 1C5, Canada (N.F.A.); (E.R.)
| | - Samuel Boris Tene Tadoum
- CHU Sainte-Justine Research Centre, University of Montreal, Montreal, QC H3T 1C5, Canada (N.F.A.); (E.R.)
| | - Marisol Lavertu Jolin
- CHU Sainte-Justine Research Centre, University of Montreal, Montreal, QC H3T 1C5, Canada (N.F.A.); (E.R.)
| | - Thi Tuyet Mai Nguyen
- CHU Sainte-Justine Research Centre, University of Montreal, Montreal, QC H3T 1C5, Canada (N.F.A.); (E.R.)
| | - Norbert Fonya Ajeawung
- CHU Sainte-Justine Research Centre, University of Montreal, Montreal, QC H3T 1C5, Canada (N.F.A.); (E.R.)
| | - Ann M. Flenniken
- Lunenfeld-Tanenbaum Research Institute, The Centre for Phenogenomics, Toronto, ON M5T 3H7, Canada
| | - Lauryl M. J. Nutter
- The Hospital for Sick Children, The Centre for Phenogenomics, Toronto, ON M5T 3H7, Canada
| | - Igor Vukobradovic
- Lunenfeld-Tanenbaum Research Institute, The Centre for Phenogenomics, Toronto, ON M5T 3H7, Canada
| | - Elsa Rossignol
- CHU Sainte-Justine Research Centre, University of Montreal, Montreal, QC H3T 1C5, Canada (N.F.A.); (E.R.)
| | - Philippe M. Campeau
- CHU Sainte-Justine Research Centre, University of Montreal, Montreal, QC H3T 1C5, Canada (N.F.A.); (E.R.)
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Guo L, Salian S, Xue JY, Rath N, Rousseau J, Kim H, Ehresmann S, Moosa S, Nakagawa N, Kuroda H, Clayton-Smith J, Wang J, Wang Z, Banka S, Jackson A, Zhang YM, Wei ZJ, Hüning I, Brunet T, Ohashi H, Thomas MF, Bupp C, Miyake N, Matsumoto N, Mendoza-Londono R, Costain G, Hahn G, Di Donato N, Yigit G, Yamada T, Nishimura G, Ansel KM, Wollnik B, Hrabě de Angelis M, Mégarbané A, Rosenfeld JA, Heissmeyer V, Ikegawa S, Campeau PM. Null and missense mutations of ERI1 cause a recessive phenotypic dichotomy in humans. Am J Hum Genet 2023; 110:1068-1085. [PMID: 37352860 PMCID: PMC10357479 DOI: 10.1016/j.ajhg.2023.06.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 05/31/2023] [Accepted: 06/01/2023] [Indexed: 06/25/2023] Open
Abstract
ERI1 is a 3'-to-5' exoribonuclease involved in RNA metabolic pathways including 5.8S rRNA processing and turnover of histone mRNAs. Its biological and medical significance remain unclear. Here, we uncover a phenotypic dichotomy associated with bi-allelic ERI1 variants by reporting eight affected individuals from seven unrelated families. A severe spondyloepimetaphyseal dysplasia (SEMD) was identified in five affected individuals with missense variants but not in those with bi-allelic null variants, who showed mild intellectual disability and digital anomalies. The ERI1 missense variants cause a loss of the exoribonuclease activity, leading to defective trimming of the 5.8S rRNA 3' end and a decreased degradation of replication-dependent histone mRNAs. Affected-individual-derived induced pluripotent stem cells (iPSCs) showed impaired in vitro chondrogenesis with downregulation of genes regulating skeletal patterning. Our study establishes an entity previously unreported in OMIM and provides a model showing a more severe effect of missense alleles than null alleles within recessive genotypes, suggesting a key role of ERI1-mediated RNA metabolism in human skeletal patterning and chondrogenesis.
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Affiliation(s)
- Long Guo
- Department of Laboratory Animal Science, School of Basic Medical Sciences, Xi'an Jiaotong University, Xi'an 710061, China; National Local Joint Engineering Research Center for Precision Surgery & Regenerative Medicine, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China; Center of Medical Genetics, Northwest Women's and Children's Hospital, the Affiliated Northwest Women's and Children's Hospital of Xi'an Jiaotong University Health Science Center, Xi'an 710003, China.
| | - Smrithi Salian
- Department of Pediatrics, CHU Sainte Justine Research Center, University of Montreal, 3175 Cote-Sainte-Catherine, Montreal, QC H3T 1C5, Canada
| | - Jing-Yi Xue
- Department of Laboratory Animal Science, School of Basic Medical Sciences, Xi'an Jiaotong University, Xi'an 710061, China; Laboratory for Bone and Joint Diseases, RIKEN Center for Integrative Medical Sciences, Tokyo 108-8639, Japan
| | - Nicola Rath
- Research Unit Molecular Immune Regulation, Helmholtz Zentrum München, German Research Center for Environmental Health, D-81377 Munich, Germany
| | - Justine Rousseau
- Department of Pediatrics, CHU Sainte Justine Research Center, University of Montreal, 3175 Cote-Sainte-Catherine, Montreal, QC H3T 1C5, Canada
| | - Hyunyun Kim
- Department of Pediatrics, CHU Sainte Justine Research Center, University of Montreal, 3175 Cote-Sainte-Catherine, Montreal, QC H3T 1C5, Canada
| | - Sophie Ehresmann
- Molecular Biology Program, Université de Montréal, Montréal, QC H3T 1J4, Canada
| | - Shahida Moosa
- Division of Molecular Biology and Human Genetics, Stellenbosch University and Medical Genetics, Tygerberg Hospital, Tygerberg 7505, South Africa
| | - Norio Nakagawa
- Department of Pediatrics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan; Department of Pediatrics, North Medical Center, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan
| | - Hiroshi Kuroda
- Department of Pediatrics, Kyoto City Hospital, Kyoto 604-8845, Japan
| | - Jill Clayton-Smith
- Manchester Centre for Genomic Medicine, St Mary's Hospital, Manchester University Foundation NHS Trust, Health Innovation Manchester, M13 9WL Manchester, UK; Division of Evolution and Genomic Sciences, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, M13 9PL Manchester, UK
| | - Juan Wang
- Department of Ultrasound, the Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, China
| | - Zheng Wang
- Laboratory for Bone and Joint Diseases, RIKEN Center for Integrative Medical Sciences, Tokyo 108-8639, Japan
| | - Siddharth Banka
- Manchester Centre for Genomic Medicine, St Mary's Hospital, Manchester University Foundation NHS Trust, Health Innovation Manchester, M13 9WL Manchester, UK; Division of Evolution and Genomic Sciences, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, M13 9PL Manchester, UK
| | - Adam Jackson
- Manchester Centre for Genomic Medicine, St Mary's Hospital, Manchester University Foundation NHS Trust, Health Innovation Manchester, M13 9WL Manchester, UK; Division of Evolution and Genomic Sciences, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, M13 9PL Manchester, UK
| | - Yan-Min Zhang
- Shaanxi Institute for Pediatric Diseases, Xi'an Children's Hospital, Affiliated Children's Hospital of Xi'an Jiaotong University, Xi'an 710082, China
| | - Zhen-Jie Wei
- Laboratory for Bone and Joint Diseases, RIKEN Center for Integrative Medical Sciences, Tokyo 108-8639, Japan
| | - Irina Hüning
- Institute of Human Genetics, University of Lübeck, 23538 Lübeck, Germany
| | - Theresa Brunet
- Institute of Human Genetics, School of Medicine, Technical University Munich, 80333 Munich, Germany; Department of Paediatric Neurology and Developmental Medicine, Hauner Children's Hospital, Ludwig Maximilian University of Munich, 80539 Munich, Germany
| | - Hirofumi Ohashi
- Division of Medical Genetics, Saitama Children's Hospital, Saitama 330-8777, Japan
| | - Molly F Thomas
- Division of Gastroenterology, Department of Medicine, Massachusetts General Hospital, Boston, MA 02114, USA
| | - Caleb Bupp
- Spectrum Health, Grand Rapids, MI 49503, USA
| | - Noriko Miyake
- Department of Human Genetics, Research Institute, National Center for Global Health and Medicine, Tokyo 162-8655, Japan
| | - Naomichi Matsumoto
- Department of Human Genetics, Yokohama City University Graduate School of Medicine, Yokohama 236-0004, Japan
| | - Roberto Mendoza-Londono
- Division of Clinical and Metabolic Genetics, The Hospital for Sick Children, Program in Genetics and Genome Biology, SickKids Research Institute, and Department of Paediatrics, University of Toronto, Toronto, ON M5G 1X8, Canada
| | - Gregory Costain
- Department of Molecular Genetics, University of Toronto, Toronto, ON M5S 1A4, Canada
| | - Gabriele Hahn
- Institute for Radiological Diagnostics, Universitätsklinikum Carl Gustav Carus Dresden, Technische Universität, 01307 Dresden, Germany
| | - Nataliya Di Donato
- Institute for Clinical Genetics, University Hospital, TU Dresden, 01069 Dresden, Germany
| | - Gökhan Yigit
- Institute of Human Genetics, University Medical Center Göttingen, 37075 Göttingen, Germany; DZHK (German Center for Cardiovascular Research), partner site Göttingen, 37075 Göttingen, Germany
| | - Takahiro Yamada
- Department of Medical Ethics and Medical Genetics, Kyoto University School of Public Health, Kyoto 606-8501, Japan
| | - Gen Nishimura
- Laboratory for Bone and Joint Diseases, RIKEN Center for Integrative Medical Sciences, Tokyo 108-8639, Japan
| | - K Mark Ansel
- Department of Microbiology and Immunology, University of California San Francisco, San Francisco, CA 94143, USA
| | - Bernd Wollnik
- Institute of Human Genetics, University Medical Center Göttingen, 37075 Göttingen, Germany; DZHK (German Center for Cardiovascular Research), partner site Göttingen, 37075 Göttingen, Germany; Cluster of Excellence "Multiscale Bioimaging: from Molecular Machines to Networks of Excitable Cells" (MBExC), University of Göttingen, 37075 Göttingen, Germany
| | - Martin Hrabě de Angelis
- Institute of Experimental Genetics, German Mouse Clinic, Helmholtz Zentrum München, German Research Center for Environmental Health (GmbH), 85764 Neuherberg, Germany; Chair of Experimental Genetics, TUM School of Life Sciences, Technische Universität München, 85354 Freising, Germany; German Center for Diabetes Research (DZD), 85764 Neuherberg, Germany
| | - André Mégarbané
- Department of Human Genetics, Gilbert and Rose-Marie Chagoury School of Medicine, Lebanese American University, 1102-2801, Lebanon and Institut Jerome Lejeune, 75015 Paris, France
| | - Jill A Rosenfeld
- Department of Molecular & Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA; Baylor Genetics Laboratories, Houston, TX 77021, USA
| | - Vigo Heissmeyer
- Research Unit Molecular Immune Regulation, Helmholtz Zentrum München, German Research Center for Environmental Health, D-81377 Munich, Germany; Institute for Immunology, Biomedical Center, Faculty of Medicine, Ludwig-Maximilians-Universität in Munich, 82152 Planegg-Martinsried, Germany
| | - Shiro Ikegawa
- Laboratory for Bone and Joint Diseases, RIKEN Center for Integrative Medical Sciences, Tokyo 108-8639, Japan
| | - Philippe M Campeau
- Department of Pediatrics, CHU Sainte Justine Research Center, University of Montreal, 3175 Cote-Sainte-Catherine, Montreal, QC H3T 1C5, Canada.
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Perroni P, Ferraz T, Rousseau J, Canaff C, Varela H, Napporn T. Stainless Steel supported NiCo2O4 active layer for Oxygen Evolution Reaction. Electrochim Acta 2023. [DOI: 10.1016/j.electacta.2023.142295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
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Tampaktsi C, Gancel AL, Escudier JL, Samson A, Ojeda H, Pic L, Rousseau J, Gauthier P, Viguier D, Furet MI, Teissedre PL. Phenolic potential of new red hybrid grape varieties to produce quality wines and identification by the malvin. BIO Web Conf 2023. [DOI: 10.1051/bioconf/20235602012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/03/2023] Open
Abstract
The hybrids are new varieties that are resistant to the cryptogamic diseases of vines, and they may be a good solution to the reduction of pesticide use. However, these new varieties have appeared recently and only few studies have been conducted to check the quality of the wine that they produce. In this study, wines originated from hybrids were chemically characterized (polyphenols, tannins, anthocyanins, and color analysis). Results show that their oenological parameters were close to those of the Vitis vinifera wines. The wines made from Vinifera (100%), with Vidoc, and all the resistant Bouquets studied are malvidin-3 glucoside dominant, and all the others hybrids varieties are cyanidin dominant. Furthermore, the hybrid wines had a higher concentration in condensed tannins and a lower one in molecular tannins compared with the Vitis vinifera wines, except for the Vidoc wines. As far as the anthocyanin content is concerned, the samples contained anthocyanin diglucosides, with the malvidin-3,5-diglucoside (malvin) the most abundant one. Also, their concentration in molecular anthocyanins were higher than the concentration in normal wines. The Vidoc wines do not contain any malvin. For the other wines, malvin co-eluted with cyanidin-3-O-glucoside and in this case, the cyanidin’s concentration was impressively higher than the Vidoc wines. The current OIV method gives different results for malvidol diglucoside compared to the use of an HPLC chromatography method (HPLC-DAD-QQQ). The current OIV method does not appear reliable in comparison with the HPLC method for detecting malvin. Finally, the hybrid wines had a darker blue/purplish color than the Vitis vinifera wines.
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Levy MA, Relator R, McConkey H, Pranckeviciene E, Kerkhof J, Barat-Houari M, Bargiacchi S, Biamino E, Bralo MP, Cappuccio G, Ciolfi A, Clarke A, DuPont BR, Elting MW, Faivre L, Fee T, Ferilli M, Fletcher RS, Cherick F, Foroutan A, Friez MJ, Gervasini C, Haghshenas S, Hilton BA, Jenkins Z, Kaur S, Lewis S, Louie RJ, Maitz S, Milani D, Morgan AT, Oegema R, Østergaard E, Pallares NR, Piccione M, Plomp AS, Poulton C, Reilly J, Rius R, Robertson S, Rooney K, Rousseau J, Santen GWE, Santos-Simarro F, Schijns J, Squeo GM, John MS, Thauvin-Robinet C, Traficante G, van der Sluijs PJ, Vergano SA, Vos N, Walden KK, Azmanov D, Balci TB, Banka S, Gecz J, Henneman P, Lee JA, Mannens MMAM, Roscioli T, Siu V, Amor DJ, Baynam G, Bend EG, Boycott K, Brunetti-Pierri N, Campeau PM, Campion D, Christodoulou J, Dyment D, Esber N, Fahrner JA, Fleming MD, Genevieve D, Heron D, Husson T, Kernohan KD, McNeill A, Menke LA, Merla G, Prontera P, Rockman-Greenberg C, Schwartz C, Skinner SA, Stevenson RE, Vincent M, Vitobello A, Tartaglia M, Alders M, Tedder ML, Sadikovic B. Functional correlation of genome-wide DNA methylation profiles in genetic neurodevelopmental disorders. Hum Mutat 2022; 43:1609-1628. [PMID: 35904121 DOI: 10.1002/humu.24446] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 06/30/2022] [Accepted: 07/27/2022] [Indexed: 11/10/2022]
Abstract
An expanding range of genetic syndromes are characterized by genome-wide disruptions in DNA methylation profiles referred to as episignatures. Episignatures are distinct, highly sensitive and specific biomarkers that have recently been applied in clinical diagnosis of genetic syndromes. Episignatures are contained within the broader disorder-specific genome-wide DNA methylation changes which can share significant overlap amongst different conditions. In this study we performed functional genomic assessment and comparison of disorder-specific and overlapping genome-wide DNA methylation changes related to 65 genetic syndromes with previously described episignatures. We demonstrate evidence of disorder-specific and recurring genome-wide differentially methylated probes (DMPs) and regions (DMRs). The overall distribution of DMPs and DMRs across the majority of the neurodevelopmental genetic syndromes analyzed showed substantial enrichment in gene promoters and CpG islands, and under-representation of the more variable intergenic regions. Analysis showed significant enrichment of the DMPs and DMRs in gene pathways and processes related to neurodevelopment, including neurogenesis, synaptic signaling and synaptic transmission. This study expands beyond the diagnostic utility of DNA methylation episignatures by demonstrating correlation between the function of the mutated genes and the consequent genomic DNA methylation profiles as a key functional element in the molecular etiology of genetic neurodevelopmental disorders. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Michael A Levy
- Verspeeten Clinical Genome Centre, London Health Sciences Centre, London, ON, N6A 5W9, Canada
| | - Raissa Relator
- Verspeeten Clinical Genome Centre, London Health Sciences Centre, London, ON, N6A 5W9, Canada
| | - Haley McConkey
- Verspeeten Clinical Genome Centre, London Health Sciences Centre, London, ON, N6A 5W9, Canada
| | - Erinija Pranckeviciene
- Verspeeten Clinical Genome Centre, London Health Sciences Centre, London, ON, N6A 5W9, Canada
| | - Jennifer Kerkhof
- Verspeeten Clinical Genome Centre, London Health Sciences Centre, London, ON, N6A 5W9, Canada
| | - Mouna Barat-Houari
- Autoinflammatory and Rare Diseases Unit, Medical Genetic Department for Rare Diseases and Personalized Medicine, CHU Montpellier, Montpellier, France
| | - Sara Bargiacchi
- Medical Genetics Unit, "A. Meyer" Children Hospital of Florence, Florence, Italy
| | - Elisa Biamino
- Department of Pediatrics, University of Turin, Italy
| | - María Palomares Bralo
- Institute of Medical and Molecular Genetics (INGEMM), Hospital Universitario La Paz, IdiPAZ, CIBERER, ISCIII, Madrid, Spain
| | - Gerarda Cappuccio
- Department of Translational Medicine, Federico II University of Naples, Italy.,Telethon Institute of Genetics and Medicine, Pozzuoli, Italy
| | - Andrea Ciolfi
- Genetics and Rare Diseases Research Division, Ospedale Pediatrico Bambino Gesù, IRCCS, 00146, Rome, Italy
| | - Angus Clarke
- Cardiff University School of Medicine, Cardiff, United Kingdom
| | | | - Mariet W Elting
- Amsterdam UMC, University of Amsterdam, Department of Human Genetics, Amsterdam Reproduction and Development Research Institute, Meibergdreef 9, 1105, AZ, Amsterdam, the Netherlands
| | - Laurence Faivre
- INSERM-Université de Bourgogne UMR1231 GAD « Génétique Des Anomalies du Développement », FHU-TRANSLAD, UFR Des Sciences de Santé, Dijon, France.,Centre de Référence Maladies Rares «Anomalies du Développement et Syndromes Malformatifs », Centre de Génétique, FHU-TRANSLAD, CHU Dijon Bourgogne, Dijon, France
| | - Timothy Fee
- Greenwood Genetic Center, Greenwood, SC, 29646, USA
| | - Marco Ferilli
- Genetics and Rare Diseases Research Division, Ospedale Pediatrico Bambino Gesù, IRCCS, 00146, Rome, Italy
| | | | - Florian Cherick
- Genetic medical center, CHU Clermont Ferrand, France.,Montpellier University, Reference Center for Rare Disease, Medical Genetic Department for Rare Disease and Personalize Medicine, Inserm Unit 1183, CHU Montpellier, Montpellier, France
| | - Aidin Foroutan
- Department of Pathology and Laboratory Medicine, Western University, London, ON, N6A 3K7, Canada
| | | | - Cristina Gervasini
- Division of Medical Genetics, Department of Health Sciences, Università degli Studi di Milano, Milan, Italy
| | - Sadegheh Haghshenas
- Department of Pathology and Laboratory Medicine, Western University, London, ON, N6A 3K7, Canada
| | | | - Zandra Jenkins
- Dunedin School of Medicine, University of Otago, Dunedin, New Zealand
| | - Simranpreet Kaur
- Brain and Mitochondrial Research Group, Murdoch Children's Research Institute and Department of Paediatrics, University of Melbourne, Melbourne, Australia
| | - Suzanne Lewis
- BC Children's and Women's Hospital and Department of Medical Genetics, Faculty of Medicine, University of British Columbia
| | | | - Silvia Maitz
- Clinical Pediatric Genetics Unit, Pediatrics Clinics, MBBM Foundation, Hospital San Gerardo, Monza, Italy
| | - Donatella Milani
- Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Angela T Morgan
- Murdoch Children's Research Institute and Department of Paediatrics, University of Melbourne, Melbourne, Australia
| | - Renske Oegema
- Department of Genetics, University Medical Center Utrecht, Utrecht University, Utrecht, the Netherlands
| | - Elsebet Østergaard
- Department of Clinical Genetics, Copenhagen University Hospital Rigshospitalet, Copenhagen, Denmark.,Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Nathalie Ruiz Pallares
- Autoinflammatory and Rare Diseases Unit, Medical Genetic Department for Rare Diseases and Personalized Medicine, CHU Montpellier, Montpellier, France
| | - Maria Piccione
- Medical Genetics Unit Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties, University of Palermo, Palermo, Italy
| | - Astrid S Plomp
- Amsterdam UMC, University of Amsterdam, Department of Human Genetics, Amsterdam Reproduction and Development Research Institute, Meibergdreef 9, 1105, AZ, Amsterdam, the Netherlands
| | - Cathryn Poulton
- Undiagnosed Diseases Program, Genetic Services of Western Australia, King Edward Memorial Hospital, Perth, Australia
| | - Jack Reilly
- Department of Pathology and Laboratory Medicine, Western University, London, ON, N6A 3K7, Canada
| | - Rocio Rius
- Brain and Mitochondrial Research Group, Murdoch Children's Research Institute, Melbourne, Australia.,Department of Paediatrics, University of Melbourne, Melbourne, Australia
| | - Stephen Robertson
- Dunedin School of Medicine, University of Otago, Dunedin, New Zealand
| | - Kathleen Rooney
- Verspeeten Clinical Genome Centre, London Health Sciences Centre, London, ON, N6A 5W9, Canada.,Department of Pathology and Laboratory Medicine, Western University, London, ON, N6A 3K7, Canada
| | - Justine Rousseau
- CHU Sainte-Justine Research Center, University of Montreal, Montreal, QC, H3T 1C5, Canada
| | - Gijs W E Santen
- Department of Clinical Genetics, LUMC, Leiden, The Netherlands
| | - Fernando Santos-Simarro
- Institute of Medical and Molecular Genetics (INGEMM), Hospital Universitario La Paz, IdiPAZ, CIBERER, ISCIII, Madrid, Spain
| | - Josephine Schijns
- Department of Pediatrics, Emma Children's Hospital, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Gabriella Maria Squeo
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Via S. Pansini 5, 80131, Naples, Italy
| | - Miya St John
- Murdoch Children's Research Institute and Department of Paediatrics, University of Melbourne, Melbourne, Australia
| | - Christel Thauvin-Robinet
- INSERM-Université de Bourgogne UMR1231 GAD « Génétique Des Anomalies du Développement », FHU-TRANSLAD, UFR Des Sciences de Santé, Dijon, France.,Centre de Référence Maladies Rares «Anomalies du Développement et Syndromes Malformatifs », Centre de Génétique, FHU-TRANSLAD, CHU Dijon Bourgogne, Dijon, France.,Unité Fonctionnelle d'Innovation Diagnostique des Maladies Rares, FHU-TRANSLAD, France Hospitalo-Universitaire Médecine Translationnelle et Anomalies du Développement (TRANSLAD), Centre Hospitalier Universitaire Dijon Bourgogne, CHU Dijon Bourgogne,, Dijon, France.,Centre de Référence Déficiences Intellectuelles de Causes Rares, Hôpital D'Enfants, CHU Dijon Bourgogne, 21000, Dijon, France
| | - Giovanna Traficante
- Medical Genetics Unit, "A. Meyer" Children Hospital of Florence, Florence, Italy
| | | | - Samantha A Vergano
- Division of Medical Genetics and Metabolism, Children's Hospital of The King's Daughters, Norfolk, VA, USA.,Department of Pediatrics, Eastern Virginia Medical School, Norfolk, VA, USA
| | - Niels Vos
- Amsterdam UMC, University of Amsterdam, Department of Human Genetics, Amsterdam Reproduction and Development Research Institute, Meibergdreef 9, 1105, AZ, Amsterdam, the Netherlands
| | | | - Dimitar Azmanov
- Department of Diagnostic Genomics, PathWest Laboratory Medicine, QEII Medical Centre, Perth, Australia
| | - Tugce B Balci
- Department of Pediatrics, Division of Medical Genetics, Western University, London, ON, N6A 3K7, Canada.,Medical Genetics Program of Southwestern Ontario, London Health Sciences Centre and Children's Health Research Institute, London, ON, N6A5W9, Canada
| | - Siddharth Banka
- Division of Evolution, Infection & Genomics, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, United Kingdom.,Manchester Centre for Genomic Medicine, St Mary's Hospital, Manchester University NHS Foundation Trust, Health Innovation Manchester, Manchester, United Kingdom
| | - Jozef Gecz
- School of Medicine, Robinson Research Institute, University of Adelaide, Adelaide, SA, 5005, Australia.,South Australian Health and Medical Research Institute, Adelaide, SA, 5005, Australia
| | - Peter Henneman
- Amsterdam UMC, University of Amsterdam, Department of Human Genetics, Amsterdam Reproduction and Development Research Institute, Meibergdreef 9, 1105, AZ, Amsterdam, the Netherlands
| | | | - Marcel M A M Mannens
- Amsterdam UMC, University of Amsterdam, Department of Human Genetics, Amsterdam Reproduction and Development Research Institute, Meibergdreef 9, 1105, AZ, Amsterdam, the Netherlands
| | - Tony Roscioli
- Neuroscience Research Australia (NeuRA), Sydney, Australia.,Prince of Wales Clinical School, Faculty of Medicine, University of New South Wales, Sydney, Australia.,New South Wales Health Pathology Randwick Genomics, Prince of Wales Hospital, Sydney, Australia.,Centre for Clinical Genetics, Sydney Children's Hospital, Sydney, Australia
| | - Victoria Siu
- Department of Pediatrics, Division of Medical Genetics, Western University, London, ON, N6A 3K7, Canada.,Medical Genetics Program of Southwestern Ontario, London Health Sciences Centre and Children's Health Research Institute, London, ON, N6A5W9, Canada
| | - David J Amor
- Murdoch Children's Research Institute and Department of Paediatrics, University of Melbourne, Melbourne, Australia
| | - Gareth Baynam
- Undiagnosed Diseases Program, Genetic Services of Western Australia, King Edward Memorial Hospital, Perth, Australia.,Undiagnosed Diseases Program, Genetic Services of Western Australia, King Edward Memorial Hospital, Perth, Australia.,Division of Paediatrics and Telethon Kids Institute, Faculty of Health and Medical Sciences, Perth, Australia
| | | | - Kym Boycott
- Children's Hospital of Eastern Ontario Research Institute, University of Ottawa, Ottawa, ON, Canada.,Department of Genetics, Children's Hospital of Eastern Ontario, Ottawa, ON, Canada
| | - Nicola Brunetti-Pierri
- Department of Translational Medicine, Federico II University of Naples, Italy.,Telethon Institute of Genetics and Medicine, Pozzuoli, Italy
| | - Philippe M Campeau
- CHU Sainte-Justine Research Center, University of Montreal, Montreal, QC, H3T 1C5, Canada
| | | | - John Christodoulou
- Brain and Mitochondrial Research Group, Murdoch Children's Research Institute and Department of Paediatrics, University of Melbourne, Melbourne, Australia
| | - David Dyment
- Children's Hospital of Eastern Ontario Research Institute, University of Ottawa, Ottawa, ON, Canada.,Department of Genetics, Children's Hospital of Eastern Ontario, Ottawa, ON, Canada
| | | | - Jill A Fahrner
- Departments of Genetic Medicine and Pediatrics, Johns Hopkins University, Baltimore, MD, 21205, USA
| | | | - David Genevieve
- Montpellier University, Reference Center for Rare Disease, Medical Genetic Department for Rare Disease and Personalize Medicine, Inserm Unit 1183, CHU Montpellier, Montpellier, France
| | - Delphine Heron
- AP-HP, Département de Génétique Médicale, Groupe Hospitalier Pitié Salpétrière, Paris, France
| | - Thomas Husson
- Department of Genetics and Reference Center for Developmental Disorders, Normandie Univ, UNIROUEN, Inserm U1245 and Rouen University Hospital, Rouen, France
| | - Kristin D Kernohan
- Children's Hospital of Eastern Ontario Research Institute, University of Ottawa, Ottawa, ON, Canada.,Newborn Screening Ontario, Children's Hospital of Eastern Ontario, Ottawa, Canada
| | - Alisdair McNeill
- Department of Neuroscience, University of Sheffield, UK, and Sheffield Children's Hospital NHS Foundation Trust
| | - Leonie A Menke
- Department of Pediatrics, Emma Children's Hospital, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Giuseppe Merla
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Via S. Pansini 5, 80131, Naples, Italy.,Laboratory of Regulatory and Functional Genomics, Fondazione IRCCS Casa Sollievo della Sofferenza, San Giovanni Rotondo, Foggia, Italy
| | - Paolo Prontera
- Medical Genetics Unit, University of Perugia Hospital SM della Misericordia, Perugia, Italy
| | - Cheryl Rockman-Greenberg
- Dept of Pediatrics and Child Health, Rady Faculty of Health Sciences, University of Manitoba and Program in Genetics and Metabolism, Shared Health MB, Winnipeg, MB, Canada
| | | | | | | | - Marie Vincent
- Service de génétique Médicale, CHU Nantes, France.,Institut du thorax, INSERM, CNRS, UNIV Nantes, 44007, Nantes, France
| | - Antonio Vitobello
- INSERM-Université de Bourgogne UMR1231 GAD « Génétique Des Anomalies du Développement », FHU-TRANSLAD, UFR Des Sciences de Santé, Dijon, France.,Unité Fonctionnelle d'Innovation Diagnostique des Maladies Rares, FHU-TRANSLAD, France Hospitalo-Universitaire Médecine Translationnelle et Anomalies du Développement (TRANSLAD), Centre Hospitalier Universitaire Dijon Bourgogne, CHU Dijon Bourgogne,, Dijon, France
| | - Marco Tartaglia
- Genetics and Rare Diseases Research Division, Ospedale Pediatrico Bambino Gesù, IRCCS, 00146, Rome, Italy
| | - Marielle Alders
- Amsterdam UMC, University of Amsterdam, Department of Human Genetics, Amsterdam Reproduction and Development Research Institute, Meibergdreef 9, 1105, AZ, Amsterdam, the Netherlands
| | | | - Bekim Sadikovic
- Verspeeten Clinical Genome Centre, London Health Sciences Centre, London, ON, N6A 5W9, Canada.,Department of Pathology and Laboratory Medicine, Western University, London, ON, N6A 3K7, Canada
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7
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Sudarshan D, Avvakumov N, Lalonde ME, Alerasool N, Joly-Beauparlant C, Jacquet K, Mameri A, Lambert JP, Rousseau J, Lachance C, Paquet E, Herrmann L, Thonta Setty S, Loehr J, Bernardini MQ, Rouzbahman M, Gingras AC, Coulombe B, Droit A, Taipale M, Doyon Y, Côté J. Recurrent chromosomal translocations in sarcomas create a megacomplex that mislocalizes NuA4/TIP60 to Polycomb target loci. Genes Dev 2022; 36:664-683. [PMID: 35710139 DOI: 10.1101/gad.348982.121] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Accepted: 05/31/2022] [Indexed: 11/25/2022]
Abstract
Chromosomal translocations frequently promote carcinogenesis by producing gain-of-function fusion proteins. Recent studies have identified highly recurrent chromosomal translocations in patients with endometrial stromal sarcomas (ESSs) and ossifying fibromyxoid tumors (OFMTs), leading to an in-frame fusion of PHF1 (PCL1) to six different subunits of the NuA4/TIP60 complex. While NuA4/TIP60 is a coactivator that acetylates chromatin and loads the H2A.Z histone variant, PHF1 is part of the Polycomb repressive complex 2 (PRC2) linked to transcriptional repression of key developmental genes through methylation of histone H3 on lysine 27. In this study, we characterize the fusion protein produced by the EPC1-PHF1 translocation. The chimeric protein assembles a megacomplex harboring both NuA4/TIP60 and PRC2 activities and leads to mislocalization of chromatin marks in the genome, in particular over an entire topologically associating domain including part of the HOXD cluster. This is linked to aberrant gene expression-most notably increased expression of PRC2 target genes. Furthermore, we show that JAZF1-implicated with a PRC2 component in the most frequent translocation in ESSs, JAZF1-SUZ12-is a potent transcription activator that physically associates with NuA4/TIP60, its fusion creating outcomes similar to those of EPC1-PHF1 Importantly, the specific increased expression of PRC2 targets/HOX genes was also confirmed with ESS patient samples. Altogether, these results indicate that most chromosomal translocations linked to these sarcomas use the same molecular oncogenic mechanism through a physical merge of NuA4/TIP60 and PRC2 complexes, leading to mislocalization of histone marks and aberrant Polycomb target gene expression.
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Affiliation(s)
- Deepthi Sudarshan
- Centre Hospitalier Universitaire (CHU) de Québec-Université Laval Research Center, Laval University Cancer Research Center, Quebec City, Quebec G1R 3S3, Canada
| | - Nikita Avvakumov
- Centre Hospitalier Universitaire (CHU) de Québec-Université Laval Research Center, Laval University Cancer Research Center, Quebec City, Quebec G1R 3S3, Canada
| | - Marie-Eve Lalonde
- Centre Hospitalier Universitaire (CHU) de Québec-Université Laval Research Center, Laval University Cancer Research Center, Quebec City, Quebec G1R 3S3, Canada
| | - Nader Alerasool
- Donnelly Centre for Cellular and Biomolecular Research, Department of Molecular Genetics, University of Toronto, Toronto, Ontario M5S 3E1, Canada
| | - Charles Joly-Beauparlant
- Computational Biology Laboratory, CHU de Québec-Université Laval Research Center, Quebec City, Quebec G1V 4G2, Canada
| | - Karine Jacquet
- Centre Hospitalier Universitaire (CHU) de Québec-Université Laval Research Center, Laval University Cancer Research Center, Quebec City, Quebec G1R 3S3, Canada
| | - Amel Mameri
- Centre Hospitalier Universitaire (CHU) de Québec-Université Laval Research Center, Laval University Cancer Research Center, Quebec City, Quebec G1R 3S3, Canada
| | - Jean-Philippe Lambert
- Centre Hospitalier Universitaire (CHU) de Québec-Université Laval Research Center, Laval University Cancer Research Center, Quebec City, Quebec G1R 3S3, Canada.,Centre for Systems Biology, Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Ontario M5G 1X5, Canada
| | - Justine Rousseau
- Institut de Recherches Cliniques de Montréal, Department of Biochemistry and Molecular Medicine, Université de Montréal, Montreal, Quebec H3T 1J4, Canada
| | - Catherine Lachance
- Centre Hospitalier Universitaire (CHU) de Québec-Université Laval Research Center, Laval University Cancer Research Center, Quebec City, Quebec G1R 3S3, Canada
| | - Eric Paquet
- Centre Hospitalier Universitaire (CHU) de Québec-Université Laval Research Center, Laval University Cancer Research Center, Quebec City, Quebec G1R 3S3, Canada
| | - Lara Herrmann
- Computational Biology Laboratory, CHU de Québec-Université Laval Research Center, Quebec City, Quebec G1V 4G2, Canada
| | - Samarth Thonta Setty
- Computational Biology Laboratory, CHU de Québec-Université Laval Research Center, Quebec City, Quebec G1V 4G2, Canada
| | - Jeremy Loehr
- Centre Hospitalier Universitaire (CHU) de Québec-Université Laval Research Center, Laval University Cancer Research Center, Quebec City, Quebec G1R 3S3, Canada
| | - Marcus Q Bernardini
- Department of Gynecologic Oncology, Princess Margaret Cancer Center, University Health Network, Sinai Health System, Toronto, Ontario M5B 2M9, Canada.,Department of Obstetrics and Gynecology, University of Toronto, Toronto, Ontario M5G 1X8, Canada
| | - Marjan Rouzbahman
- Department of Laboratory Medicine and Pathobiology, Princess Margaret Hospital Cancer Centre, Toronto, Ontario M5G 2C4, Canada
| | - Anne-Claude Gingras
- Centre for Systems Biology, Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Ontario M5G 1X5, Canada
| | - Benoit Coulombe
- Institut de Recherches Cliniques de Montréal, Department of Biochemistry and Molecular Medicine, Université de Montréal, Montreal, Quebec H3T 1J4, Canada
| | - Arnaud Droit
- Computational Biology Laboratory, CHU de Québec-Université Laval Research Center, Quebec City, Quebec G1V 4G2, Canada
| | - Mikko Taipale
- Donnelly Centre for Cellular and Biomolecular Research, Department of Molecular Genetics, University of Toronto, Toronto, Ontario M5S 3E1, Canada
| | - Yannick Doyon
- Centre Hospitalier Universitaire (CHU) de Québec-Université Laval Research Center, Laval University Cancer Research Center, Quebec City, Quebec G1R 3S3, Canada
| | - Jacques Côté
- Centre Hospitalier Universitaire (CHU) de Québec-Université Laval Research Center, Laval University Cancer Research Center, Quebec City, Quebec G1R 3S3, Canada
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8
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McQuaid ME, Ahmed K, Tran S, Rousseau J, Shaheen R, Kernohan KD, Yuki KE, Grover P, Dreseris ES, Ahmed S, Dupuis L, Stimec J, Shago M, Al-Hassnan ZN, Tremblay R, Maass PG, Wilson MD, Grunebaum E, Boycott KM, Boisvert FM, Maddirevula S, Faqeih EA, Almanjomi F, Khan ZU, Alkuraya FS, Campeau PM, Kannu P, Campos EI, Wurtele H. Hypomorphic GINS3 variants alter DNA replication and cause Meier-Gorlin syndrome. JCI Insight 2022; 7:155648. [PMID: 35603789 PMCID: PMC9215265 DOI: 10.1172/jci.insight.155648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Accepted: 04/12/2022] [Indexed: 11/17/2022] Open
Abstract
The eukaryotic CDC45/MCM2-7/GINS (CMG) helicase unwinds the DNA double helix during DNA replication. The GINS subcomplex is required for helicase activity and is, therefore, essential for DNA replication and cell viability. Here, we report the identification of 7 individuals from 5 unrelated families presenting with a Meier-Gorlin syndrome–like (MGS-like) phenotype associated with hypomorphic variants of GINS3, a gene not previously associated with this syndrome. We found that MGS-associated GINS3 variants affecting aspartic acid 24 (D24) compromised cell proliferation and caused accumulation of cells in S phase. These variants shortened the protein half-life, altered key protein interactions at the replisome, and negatively influenced DNA replication fork progression. Yeast expressing MGS-associated variants of PSF3 (the yeast GINS3 ortholog) also displayed impaired growth, S phase progression defects, and decreased Psf3 protein stability. We further showed that mouse embryos homozygous for a D24 variant presented intrauterine growth retardation and did not survive to birth, and that fibroblasts derived from these embryos displayed accelerated cellular senescence. Taken together, our findings implicate GINS3 in the pathogenesis of MGS and support the notion that hypomorphic variants identified in this gene impaired cell and organismal growth by compromising DNA replication.
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Affiliation(s)
- Mary E. McQuaid
- Maisonneuve-Rosemont Hospital Research Center, Montreal, Quebec, Canada
| | - Kashif Ahmed
- Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Stephanie Tran
- Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto, Ontario, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada
| | | | - Ranad Shaheen
- Department of Translational Genomics, Center for Genomic Medicine, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | - Kristin D. Kernohan
- CHEO Research Institute, Ottawa, Ontario, Canada
- Newborn Screening Ontario, CHEO, Ottawa, Ontario, Canada
| | - Kyoko E. Yuki
- Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Prerna Grover
- Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Ema S. Dreseris
- Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Sameen Ahmed
- Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto, Ontario, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada
| | - Lucie Dupuis
- Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Jennifer Stimec
- Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Mary Shago
- Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Zuhair N. Al-Hassnan
- Department of Translational Genomics, Center for Genomic Medicine, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | - Roch Tremblay
- Maisonneuve-Rosemont Hospital Research Center, Montreal, Quebec, Canada
| | - Philipp G. Maass
- Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto, Ontario, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada
| | - Michael D. Wilson
- Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto, Ontario, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada
| | - Eyal Grunebaum
- Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto, Ontario, Canada
| | | | | | - Sateesh Maddirevula
- Department of Translational Genomics, Center for Genomic Medicine, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | - Eissa A. Faqeih
- Section of Medical Genetics, Children’s Specialist Hospital, and
| | - Fahad Almanjomi
- Department of Pediatric Hematology and Oncology, Comprehensive Cancer Center, King Fahad Medical City, Riyadh, Saudi Arabia
| | - Zaheer Ullah Khan
- Department of Pediatric Hematology and Oncology, Comprehensive Cancer Center, King Fahad Medical City, Riyadh, Saudi Arabia
| | - Fowzan S. Alkuraya
- Department of Translational Genomics, Center for Genomic Medicine, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
- Department of Anatomy and Cell Biology, College of Medicine, Alfaisal University, Riyadh, Saudi Arabia
| | | | - Peter Kannu
- Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto, Ontario, Canada
- Department of Medical Genetics, University of Alberta, Edmonton, Alberta, Canada
| | - Eric I. Campos
- Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto, Ontario, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada
| | - Hugo Wurtele
- Maisonneuve-Rosemont Hospital Research Center, Montreal, Quebec, Canada
- Department of Medicine, University of Montreal, Montreal, Quebec, Canada
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9
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Levy MA, McConkey H, Kerkhof J, Barat-Houari M, Bargiacchi S, Biamino E, Bralo MP, Cappuccio G, Ciolfi A, Clarke A, DuPont BR, Elting MW, Faivre L, Fee T, Fletcher RS, Cherik F, Foroutan A, Friez MJ, Gervasini C, Haghshenas S, Hilton BA, Jenkins Z, Kaur S, Lewis S, Louie RJ, Maitz S, Milani D, Morgan AT, Oegema R, Østergaard E, Pallares NR, Piccione M, Pizzi S, Plomp AS, Poulton C, Reilly J, Relator R, Rius R, Robertson S, Rooney K, Rousseau J, Santen GWE, Santos-Simarro F, Schijns J, Squeo GM, St John M, Thauvin-Robinet C, Traficante G, van der Sluijs PJ, Vergano SA, Vos N, Walden KK, Azmanov D, Balci T, Banka S, Gecz J, Henneman P, Lee JA, Mannens MMAM, Roscioli T, Siu V, Amor DJ, Baynam G, Bend EG, Boycott K, Brunetti-Pierri N, Campeau PM, Christodoulou J, Dyment D, Esber N, Fahrner JA, Fleming MD, Genevieve D, Kerrnohan KD, McNeill A, Menke LA, Merla G, Prontera P, Rockman-Greenberg C, Schwartz C, Skinner SA, Stevenson RE, Vitobello A, Tartaglia M, Alders M, Tedder ML, Sadikovic B. Novel diagnostic DNA methylation episignatures expand and refine the epigenetic landscapes of Mendelian disorders. HGG Adv 2022; 3:100075. [PMID: 35047860 PMCID: PMC8756545 DOI: 10.1016/j.xhgg.2021.100075] [Citation(s) in RCA: 41] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Accepted: 11/30/2021] [Indexed: 02/07/2023] Open
Abstract
Overlapping clinical phenotypes and an expanding breadth and complexity of genomic associations are a growing challenge in the diagnosis and clinical management of Mendelian disorders. The functional consequences and clinical impacts of genomic variation may involve unique, disorder-specific, genomic DNA methylation episignatures. In this study, we describe 19 novel episignature disorders and compare the findings alongside 38 previously established episignatures for a total of 57 episignatures associated with 65 genetic syndromes. We demonstrate increasing resolution and specificity ranging from protein complex, gene, sub-gene, protein domain, and even single nucleotide-level Mendelian episignatures. We show the power of multiclass modeling to develop highly accurate and disease-specific diagnostic classifiers. This study significantly expands the number and spectrum of disorders with detectable DNA methylation episignatures, improves the clinical diagnostic capabilities through the resolution of unsolved cases and the reclassification of variants of unknown clinical significance, and provides further insight into the molecular etiology of Mendelian conditions.
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Affiliation(s)
- Michael A Levy
- Verspeeten Clinical Genome Centre; London Health Sciences Centre, London, ON N6A 5W9, Canada
| | - Haley McConkey
- Verspeeten Clinical Genome Centre; London Health Sciences Centre, London, ON N6A 5W9, Canada
| | - Jennifer Kerkhof
- Verspeeten Clinical Genome Centre; London Health Sciences Centre, London, ON N6A 5W9, Canada
| | - Mouna Barat-Houari
- Autoinflammatory and Rare Diseases Unit, Medical Genetic Department for Rare Diseases and Personalized Medicine, CHU Montpellier, Montpellier, France
| | - Sara Bargiacchi
- Medical Genetics Unit, "A. Meyer" Children's Hospital of Florence, Florence, Italy
| | - Elisa Biamino
- Department of Pediatrics, University of Turin, Turin, Italy
| | - María Palomares Bralo
- Institute of Medical and Molecular Genetics (INGEMM), Hospital Universitario La Paz, IdiPAZ, CIBERER, ISCIII, Madrid, Spain
| | - Gerarda Cappuccio
- Department of Translational Medicine, Federico II University of Naples, Naples, Italy.,Telethon Institute of Genetics and Medicine, Pozzuoli, Italy
| | - Andrea Ciolfi
- Genetics and Rare Diseases Research Division, Ospedale Pediatrico Bambino Gesù, IRCCS, 00146 Rome, Italy
| | - Angus Clarke
- Cardiff University School of Medicine, Cardiff, UK
| | | | - Mariet W Elting
- Department of Clinical Genetics, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
| | - Laurence Faivre
- INSERM-Université de Bourgogne UMR1231 GAD « Génétique Des Anomalies du Développement », FHU-TRANSLAD, UFR Des Sciences de Santé, Dijon, France.,Centre de Référence Maladies Rares «Anomalies du Développement et Syndromes Malformatifs », Centre de Génétique, FHU-TRANSLAD, CHU Dijon Bourgogne, Dijon, France
| | - Timothy Fee
- Greenwood Genetic Center, Greenwood, SC 29646, USA
| | | | - Florian Cherik
- Genetic medical center, CHU Clermont Ferrand, France.,Montpellier University, Reference Center for Rare Disease, Medical Genetic Department for Rare Disease and Personalize Medicine, Inserm Unit 1183, CHU Montpellier, Montpellier, France
| | - Aidin Foroutan
- Department of Pathology and Laboratory Medicine, Western University, London, ON N6A 3K7, Canada
| | | | - Cristina Gervasini
- Division of Medical Genetics, Department of Health Sciences, Università degli Studi di Milano, Milan, Italy
| | - Sadegheh Haghshenas
- Department of Pathology and Laboratory Medicine, Western University, London, ON N6A 3K7, Canada
| | | | - Zandra Jenkins
- Dunedin School of Medicine, University of Otago, Dunedin, New Zealand
| | - Simranpreet Kaur
- Brain and Mitochondrial Research Group, Murdoch Children's Research Institute and Department of Paediatrics, University of Melbourne, Melbourne, Australia
| | - Suzanne Lewis
- BC Children's and Women's Hospital and Department of Medical Genetics, Faculty of Medicine, University of British Columbia, Vancouver, Canada
| | | | - Silvia Maitz
- Clinical Pediatric Genetics Unit, Pediatrics Clinics, MBBM Foundation, Hospital San Gerardo, Monza, Italy
| | - Donatella Milani
- Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Angela T Morgan
- Murdoch Children's Research Institute and Department of Paediatrics, University of Melbourne, Melbourne, Australia
| | - Renske Oegema
- Department of Genetics, University Medical Center Utrecht, Utrecht University, Utrecht, the Netherlands
| | - Elsebet Østergaard
- Department of Clinical Genetics, Copenhagen University Hospital Rigshospitalet, Copenhagen, Denmark.,Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Nathalie Ruiz Pallares
- Autoinflammatory and Rare Diseases Unit, Medical Genetic Department for Rare Diseases and Personalized Medicine, CHU Montpellier, Montpellier, France
| | - Maria Piccione
- Medical Genetics Unit Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties, University of Palermo, Palermo, Italy
| | - Simone Pizzi
- Genetics and Rare Diseases Research Division, Ospedale Pediatrico Bambino Gesù, IRCCS, 00146 Rome, Italy
| | - Astrid S Plomp
- Amsterdam UMC, University of Amsterdam, Department of Human Genetics, Amsterdam Reproduction and Development Research Institute, Meibergdreef 9, 1105 AZ Amsterdam, the Netherlands
| | - Cathryn Poulton
- Undiagnosed Diseases Program, Genetic Services of Western Australia, King Edward Memorial Hospital, Perth, Australia
| | - Jack Reilly
- Department of Pathology and Laboratory Medicine, Western University, London, ON N6A 3K7, Canada
| | - Raissa Relator
- Verspeeten Clinical Genome Centre; London Health Sciences Centre, London, ON N6A 5W9, Canada
| | - Rocio Rius
- Brain and Mitochondrial Research Group, Murdoch Children's Research Institute, Melbourne, Australia.,Department of Paediatrics, University of Melbourne, Melbourne, Australia
| | - Stephen Robertson
- Dunedin School of Medicine, University of Otago, Dunedin, New Zealand
| | - Kathleen Rooney
- Verspeeten Clinical Genome Centre; London Health Sciences Centre, London, ON N6A 5W9, Canada.,Department of Pathology and Laboratory Medicine, Western University, London, ON N6A 3K7, Canada
| | - Justine Rousseau
- CHU Sainte-Justine Research Center, University of Montreal, Montreal, QC H3T 1C5, Canada
| | - Gijs W E Santen
- Department of Clinical Genetics, LUMC, Leiden, the Netherlands
| | - Fernando Santos-Simarro
- Institute of Medical and Molecular Genetics (INGEMM), Hospital Universitario La Paz, IdiPAZ, CIBERER, ISCIII, Madrid, Spain
| | - Josephine Schijns
- Department of Pediatrics, Emma Children's Hospital, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
| | - Gabriella Maria Squeo
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Via S. Pansini 5, 80131 Naples, Italy
| | - Miya St John
- Murdoch Children's Research Institute and Department of Paediatrics, University of Melbourne, Melbourne, Australia
| | - Christel Thauvin-Robinet
- INSERM-Université de Bourgogne UMR1231 GAD « Génétique Des Anomalies du Développement », FHU-TRANSLAD, UFR Des Sciences de Santé, Dijon, France.,Centre de Référence Maladies Rares «Anomalies du Développement et Syndromes Malformatifs », Centre de Génétique, FHU-TRANSLAD, CHU Dijon Bourgogne, Dijon, France.,Unité Fonctionnelle d'Innovation Diagnostique des Maladies Rares, FHU-TRANSLAD, France Hospitalo-Universitaire Médecine Translationnelle et Anomalies du Développement (TRANSLAD), Centre Hospitalier Universitaire Dijon Bourgogne, CHU Dijon Bourgogne, Dijon, France.,Centre de Référence Déficiences Intellectuelles de Causes Rares, Hôpital D'Enfants, CHU Dijon Bourgogne, 21000 Dijon, France
| | - Giovanna Traficante
- Medical Genetics Unit, "A. Meyer" Children's Hospital of Florence, Florence, Italy
| | | | - Samantha A Vergano
- Division of Medical Genetics and Metabolism, Children's Hospital of The King's Daughters, Norfolk, VA, USA.,Department of Pediatrics, Eastern Virginia Medical School, Norfolk, VA, USA
| | - Niels Vos
- Department of Clinical Genetics, Amsterdam UMC, University of Amsterdam, Amsterdam Reproduction and Development Research Institute, Meibergdreef 9, Amsterdam, the Netherlands
| | | | - Dimitar Azmanov
- Department of Diagnostic Genomics, PathWest Laboratory Medicine, QEII Medical Centre, Perth, Australia
| | - Tugce Balci
- Department of Pediatrics, Division of Medical Genetics, Western University, London, ON N6A 3K7, Canada.,Medical Genetics Program of Southwestern Ontario, London Health Sciences Centre and Children's Health Research Institute, London, ON N6A5W9, Canada
| | - Siddharth Banka
- Division of Evolution, Infection & Genomics, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, UK.,Manchester Centre for Genomic Medicine, St Mary's Hospital, Manchester University NHS Foundation Trust, Health Innovation Manchester, Manchester, UK
| | - Jozef Gecz
- School of Medicine, Robinson Research Institute, University of Adelaide, Adelaide, SA 5005, Australia.,South Australian Health and Medical Research Institute, Adelaide, SA 5005, Australia
| | - Peter Henneman
- Amsterdam UMC, University of Amsterdam, Department of Human Genetics, Amsterdam Reproduction and Development Research Institute, Meibergdreef 9, 1105 AZ Amsterdam, the Netherlands
| | | | - Marcel M A M Mannens
- Amsterdam UMC, University of Amsterdam, Department of Human Genetics, Amsterdam Reproduction and Development Research Institute, Meibergdreef 9, 1105 AZ Amsterdam, the Netherlands
| | - Tony Roscioli
- Neuroscience Research Australia (NeuRA), Sydney, Australia.,Prince of Wales Clinical School, Faculty of Medicine, University of New South Wales, Sydney, Australia.,New South Wales Health Pathology Randwick Genomics, Prince of Wales Hospital, Sydney, Australia.,Centre for Clinical Genetics, Sydney Children's Hospital, Sydney, Australia
| | - Victoria Siu
- Department of Pediatrics, Division of Medical Genetics, Western University, London, ON N6A 3K7, Canada.,Medical Genetics Program of Southwestern Ontario, London Health Sciences Centre and Children's Health Research Institute, London, ON N6A5W9, Canada
| | - David J Amor
- Murdoch Children's Research Institute and Department of Paediatrics, University of Melbourne, Melbourne, Australia
| | - Gareth Baynam
- Undiagnosed Diseases Program, Genetic Services of Western Australia, King Edward Memorial Hospital, Perth, Australia.,Undiagnosed Diseases Program, Genetic Services of Western Australia, King Edward Memorial Hospital, Perth, Australia.,Division of Paediatrics and Telethon Kids Institute, Faculty of Health and Medical Sciences, Perth, Australia
| | | | - Kym Boycott
- Children's Hospital of Eastern Ontario Research Institute, University of Ottawa, Ottawa, ON, Canada.,Department of Genetics, Children's Hospital of Eastern Ontario, Ottawa, ON, Canada
| | - Nicola Brunetti-Pierri
- Department of Translational Medicine, Federico II University of Naples, Naples, Italy.,Telethon Institute of Genetics and Medicine, Pozzuoli, Italy
| | - Philippe M Campeau
- CHU Sainte-Justine Research Center, University of Montreal, Montreal, QC H3T 1C5, Canada
| | - John Christodoulou
- Brain and Mitochondrial Research Group, Murdoch Children's Research Institute and Department of Paediatrics, University of Melbourne, Melbourne, Australia
| | - David Dyment
- Children's Hospital of Eastern Ontario, Ottawa, Canada
| | | | - Jill A Fahrner
- Departments of Genetic Medicine and Pediatrics, Johns Hopkins University, Baltimore, MD 21205, USA
| | - Mark D Fleming
- Department of Pathology, Boston Children's Hospital, Boston, MA, USA
| | - David Genevieve
- Montpellier University, Reference Center for Rare Disease, Medical Genetic Department for Rare Disease and Personalize Medicine, Inserm Unit 1183, CHU Montpellier, Montpellier, France
| | - Kristin D Kerrnohan
- Children's Hospital of Eastern Ontario Research Institute, University of Ottawa, Ottawa, ON, Canada.,Newborn Screening Ontario, Children's Hospital of Eastern Ontario, Ottawa, Canada
| | - Alisdair McNeill
- Department of Neuroscience, University of Sheffield, Sheffield Children's Hospital NHS Foundation Trust, Sheffield, UK
| | - Leonie A Menke
- Department of Pediatrics, Emma Children's Hospital, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
| | - Giuseppe Merla
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Via S. Pansini 5, 80131 Naples, Italy.,Laboratory of Regulatory and Functional Genomics, Fondazione IRCCS Casa Sollievo della Sofferenza, San Giovanni Rotondo (Foggia), Italy
| | - Paolo Prontera
- Medical Genetics Unit, University of Perugia Hospital SM della Misericordia, Perugia, Italy
| | - Cheryl Rockman-Greenberg
- Department of Pediatrics and Child Health, Rady Faculty of Health Sciences, University of Manitoba and Program in Genetics and Metabolism, Shared Health MB, Winnipeg, MB, Canada
| | | | | | | | - Antonio Vitobello
- INSERM-Université de Bourgogne UMR1231 GAD « Génétique Des Anomalies du Développement », FHU-TRANSLAD, UFR Des Sciences de Santé, Dijon, France.,Unité Fonctionnelle d'Innovation Diagnostique des Maladies Rares, FHU-TRANSLAD, France Hospitalo-Universitaire Médecine Translationnelle et Anomalies du Développement (TRANSLAD), Centre Hospitalier Universitaire Dijon Bourgogne, CHU Dijon Bourgogne, Dijon, France
| | - Marco Tartaglia
- Genetics and Rare Diseases Research Division, Ospedale Pediatrico Bambino Gesù, IRCCS, 00146 Rome, Italy
| | - Marielle Alders
- Amsterdam UMC, University of Amsterdam, Department of Human Genetics, Amsterdam Reproduction and Development Research Institute, Meibergdreef 9, 1105 AZ Amsterdam, the Netherlands
| | | | - Bekim Sadikovic
- Verspeeten Clinical Genome Centre; London Health Sciences Centre, London, ON N6A 5W9, Canada.,Department of Pathology and Laboratory Medicine, Western University, London, ON N6A 3K7, Canada
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10
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Makansi N, Rousseau J, Bedos C. Domiciliary dentistry clinics: a multiple case study in the province of Quebec, Canada. BMC Health Serv Res 2021; 21:972. [PMID: 34526032 PMCID: PMC8442809 DOI: 10.1186/s12913-021-06788-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Accepted: 07/21/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The demand for more flexible and person-centered models of oral healthcare delivery is increasing and while mobile and domiciliary dental services have the potential to increase access to oral healthcare among dependent elderly and people with disabilities; the uptake of this service model by dentists remains low. Therefore, the aim of this study was to understand how existing domiciliary dental services operate within a particular context. METHODS We used a qualitative descriptive multiple case study design. We studied three independent domiciliary dentistry clinics in the province of Quebec, Canada. We completed observations of 27 domiciliary visits, four of which were in private homes and the remaining 23 in LTCFs. We also conducted semi-structured interviews with dental professionals, patients, and caregivers. We performed a qualitative content analysis using a deductive/inductive coding framework. RESULTS We presented a detailed description of the physical and service features of the studied cases. Physical features included the set-up of the mobile clinics, the portable equipment used, and the domiciliary locations of visits. For service features, we described the roles, attitudes, and interactions among those involved on both the providers' and recipients' sides, as well as, the logistical and financial aspect of the domiciliary dental services. CONCLUSIONS Despite variations in setup and years of practice, the three mobile clinics had similar physical and service features. They also faced common logistic challenges but were able to provide services and respond to the high demand for domiciliary dental services. Additional research in different contexts would further contribute to building evidence-based models to help increase the uptake of this type of practice by current and future dental professionals.
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Affiliation(s)
- N Makansi
- Faculty of Dentistry, McGill University, 2001 McGill College Ave, Montreal, Quebec, H3A 1G1, Canada.
| | - J Rousseau
- School of Rehabilitation, Université de Montréal, 7077 avenue du Parc. Mailing address : C.P. 6128 Centre-ville, Montreal, Quebec, H3C 3J7, Canada.,Research Center, Institut Universitaire de Gériatrie de Montréal, Montreal, Canada
| | - C Bedos
- Faculty of Dentistry, McGill University, 2001 McGill College Ave, Montreal, Quebec, H3A 1G1, Canada
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11
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Aref-Eshghi E, Kerkhof J, Pedro VP, France GDI, Barat-Houari M, Ruiz-Pallares N, Andrau JC, Lacombe D, Van-Gils J, Fergelot P, Dubourg C, Cormier-Daire V, Rondeau S, Lecoquierre F, Saugier-Veber P, Nicolas G, Lesca G, Chatron N, Sanlaville D, Vitobello A, Faivre L, Thauvin-Robinet C, Laumonnier F, Raynaud M, Alders M, Mannens M, Henneman P, Hennekam RC, Velasco G, Francastel C, Ulveling D, Ciolfi A, Pizzi S, Tartaglia M, Heide S, Héron D, Mignot C, Keren B, Whalen S, Afenjar A, Bienvenu T, Campeau PM, Rousseau J, Levy MA, Brick L, Kozenko M, Balci TB, Siu VM, Stuart A, Kadour M, Masters J, Takano K, Kleefstra T, de Leeuw N, Field M, Shaw M, Gecz J, Ainsworth PJ, Lin H, Rodenhiser DI, Friez MJ, Tedder M, Lee JA, DuPont BR, Stevenson RE, Skinner SA, Schwartz CE, Genevieve D, Sadikovic B. Evaluation of DNA Methylation Episignatures for Diagnosis and Phenotype Correlations in 42 Mendelian Neurodevelopmental Disorders. Am J Hum Genet 2021; 108:1161-1163. [PMID: 34087165 DOI: 10.1016/j.ajhg.2021.04.022] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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12
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Olthof AM, White AK, Mieruszynski S, Doggett K, Lee MF, Chakroun A, Abdel Aleem AK, Rousseau J, Magnani C, Roifman CM, Campeau PM, Heath JK, Kanadia RN. Disruption of exon-bridging interactions between the minor and major spliceosomes results in alternative splicing around minor introns. Nucleic Acids Res 2021; 49:3524-3545. [PMID: 33660780 PMCID: PMC8034651 DOI: 10.1093/nar/gkab118] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 02/08/2021] [Accepted: 02/10/2021] [Indexed: 12/11/2022] Open
Abstract
Vertebrate genomes contain major (>99.5%) and minor (<0.5%) introns that are spliced by the major and minor spliceosomes, respectively. Major intron splicing follows the exon-definition model, whereby major spliceosome components first assemble across exons. However, since most genes with minor introns predominately consist of major introns, formation of exon-definition complexes in these genes would require interaction between the major and minor spliceosomes. Here, we report that minor spliceosome protein U11-59K binds to the major spliceosome U2AF complex, thereby supporting a model in which the minor spliceosome interacts with the major spliceosome across an exon to regulate the splicing of minor introns. Inhibition of minor spliceosome snRNAs and U11-59K disrupted exon-bridging interactions, leading to exon skipping by the major spliceosome. The resulting aberrant isoforms contained a premature stop codon, yet were not subjected to nonsense-mediated decay, but rather bound to polysomes. Importantly, we detected elevated levels of these alternatively spliced transcripts in individuals with minor spliceosome-related diseases such as Roifman syndrome, Lowry–Wood syndrome and early-onset cerebellar ataxia. In all, we report that the minor spliceosome informs splicing by the major spliceosome through exon-definition interactions and show that minor spliceosome inhibition results in aberrant alternative splicing in disease.
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Affiliation(s)
- Anouk M Olthof
- Physiology and Neurobiology Department, University of Connecticut, 75 N. Eagleville Road, Storrs, CT 06269, USA
| | - Alisa K White
- Physiology and Neurobiology Department, University of Connecticut, 75 N. Eagleville Road, Storrs, CT 06269, USA
| | - Stephen Mieruszynski
- Epigenetics and Development Division, Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia
| | - Karen Doggett
- Epigenetics and Development Division, Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia
| | - Madisen F Lee
- Physiology and Neurobiology Department, University of Connecticut, 75 N. Eagleville Road, Storrs, CT 06269, USA
| | | | | | - Justine Rousseau
- CHU Sainte-Justine Research Center, Montreal, QC H3T 1C5, Canada
| | - Cinzia Magnani
- Neonatology and Neonatal Intensive Care Unit, Maternal and Child Department, University of Parma, Parma, 43121, Italy
| | - Chaim M Roifman
- Division of Immunology and Allergy, Department of Pediatrics, The Hospital for Sick Children and the University of Toronto, Toronto, ON M5G 1X8, Canada.,The Canadian Centre for Primary Immunodeficiency and The Jeffrey Modell Research Laboratory for the Diagnosis of Primary Immunodeficiency, The Hospital for Sick Children, Toronto, ON M5G 1X8, Canada
| | - Philippe M Campeau
- Department of Pediatrics, University of Montreal, Montreal, QC H4A 3J1, Canada
| | - Joan K Heath
- Epigenetics and Development Division, Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia
| | - Rahul N Kanadia
- Physiology and Neurobiology Department, University of Connecticut, 75 N. Eagleville Road, Storrs, CT 06269, USA.,Institute for System Genomics, University of Connecticut, Storrs, CT 06269, USA
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13
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Latypova X, Vincent M, Mollé A, Adebambo OA, Fourgeux C, Khan TN, Caro A, Rosello M, Orellana C, Niyazov D, Lederer D, Deprez M, Capri Y, Kannu P, Tabet AC, Levy J, Aten E, den Hollander N, Splitt M, Walia J, Immken LL, Stankiewicz P, McWalter K, Suchy S, Louie RJ, Bell S, Stevenson RE, Rousseau J, Willem C, Retiere C, Yang XJ, Campeau PM, Martinez F, Rosenfeld JA, Le Caignec C, Küry S, Mercier S, Moradkhani K, Conrad S, Besnard T, Cogné B, Katsanis N, Bézieau S, Poschmann J, Davis EE, Isidor B. Haploinsufficiency of the Sin3/HDAC corepressor complex member SIN3B causes a syndromic intellectual disability/autism spectrum disorder. Am J Hum Genet 2021; 108:929-941. [PMID: 33811806 DOI: 10.1016/j.ajhg.2021.03.017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Accepted: 03/18/2021] [Indexed: 11/28/2022] Open
Abstract
Proteins involved in transcriptional regulation harbor a demonstrated enrichment of mutations in neurodevelopmental disorders. The Sin3 (Swi-independent 3)/histone deacetylase (HDAC) complex plays a central role in histone deacetylation and transcriptional repression. Among the two vertebrate paralogs encoding the Sin3 complex, SIN3A variants cause syndromic intellectual disability, but the clinical consequences of SIN3B haploinsufficiency in humans are uncharacterized. Here, we describe a syndrome hallmarked by intellectual disability, developmental delay, and dysmorphic facial features with variably penetrant autism spectrum disorder, congenital malformations, corpus callosum defects, and impaired growth caused by disruptive SIN3B variants. Using chromosomal microarray or exome sequencing, and through international data sharing efforts, we identified nine individuals with heterozygous SIN3B deletion or single-nucleotide variants. Five individuals harbor heterozygous deletions encompassing SIN3B that reside within a ∼230 kb minimal region of overlap on 19p13.11, two individuals have a rare nonsynonymous substitution, and two individuals have a single-nucleotide deletion that results in a frameshift and predicted premature termination codon. To test the relevance of SIN3B impairment to measurable aspects of the human phenotype, we disrupted the orthologous zebrafish locus by genome editing and transient suppression. The mutant and morphant larvae display altered craniofacial patterning, commissural axon defects, and reduced body length supportive of an essential role for Sin3 function in growth and patterning of anterior structures. To investigate further the molecular consequences of SIN3B variants, we quantified genome-wide enhancer and promoter activity states by using H3K27ac ChIP-seq. We show that, similar to SIN3A mutations, SIN3B disruption causes hyperacetylation of a subset of enhancers and promoters in peripheral blood mononuclear cells. Together, these data demonstrate that SIN3B haploinsufficiency leads to a hitherto unknown intellectual disability/autism syndrome, uncover a crucial role of SIN3B in the central nervous system, and define the epigenetic landscape associated with Sin3 complex impairment.
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Affiliation(s)
- Xenia Latypova
- Service de Génétique Médicale, CHU Nantes, 9 quai Moncousu, 44093 Nantes Cedex 1, France; Center for Human Disease Modeling, Duke University Medical Center, Durham, NC 27701, USA; L'Institut du Thorax, INSERM, CNRS, Université de Nantes, 44007 Nantes, France
| | - Marie Vincent
- Service de Génétique Médicale, CHU Nantes, 9 quai Moncousu, 44093 Nantes Cedex 1, France; L'Institut du Thorax, INSERM, CNRS, Université de Nantes, 44007 Nantes, France
| | - Alice Mollé
- Université de Nantes, CHU Nantes, Inserm, Centre de Recherche en Transplantation et Immunologie, UMR 1064, ITUN, 44000 Nantes, France
| | | | - Cynthia Fourgeux
- Université de Nantes, CHU Nantes, Inserm, Centre de Recherche en Transplantation et Immunologie, UMR 1064, ITUN, 44000 Nantes, France
| | - Tahir N Khan
- Center for Human Disease Modeling, Duke University Medical Center, Durham, NC 27701, USA; Department of Biological Sciences, National University of Medical Sciences, 46000 Rawalpindi, Pakistan
| | - Alfonso Caro
- Unidad de Genética, Grupo de Investigación Traslacional en Genética, Hospital Universitario y Politécnico La Fe, 46026 Valencia, Spain
| | - Monica Rosello
- Unidad de Genética, Grupo de Investigación Traslacional en Genética, Hospital Universitario y Politécnico La Fe, 46026 Valencia, Spain
| | - Carmen Orellana
- Unidad de Genética, Grupo de Investigación Traslacional en Genética, Hospital Universitario y Politécnico La Fe, 46026 Valencia, Spain
| | - Dmitriy Niyazov
- Department of Pediatrics, Ochsner Clinic, New Orleans, LA 70128, USA
| | - Damien Lederer
- Centre de Génétique Humaine, IPG, 6041 Gosselies, Belgium
| | - Marie Deprez
- Service de Neuropédiatrie, Clinique Saint Elizabeth, 5000 Namur, Belgium
| | - Yline Capri
- Service de Génétique Médicale, Hôpital Robert Debré, 75019 Paris, France
| | - Peter Kannu
- Division of Clinical and Metabolic Genetics, The Hospital for Sick Children, Toronto, ON M5G 1X8, Canada
| | | | - Jonathan Levy
- Service de Cytogénétique, Hôpital Robert Debré, 75019 Paris, France
| | - Emmelien Aten
- Department of Clinical Genetics, Leiden University Medical Center, 2333 Leiden, the Netherlands
| | - Nicolette den Hollander
- Department of Clinical Genetics, Leiden University Medical Center, 2333 Leiden, the Netherlands
| | - Miranda Splitt
- Northern Genetics Service, Institute of Genetic Medicine, Newcastle Upon Tyne NE1 3BZ, UK
| | - Jagdeep Walia
- Kingston General Hospital Research Institute, 76 Stuart Street, Kingston, ON K7L 2V7, Canada
| | - Ladonna L Immken
- Clinical Genetics, Dell Children's Medical Group, Austin, TX 78731, USA
| | - Pawel Stankiewicz
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
| | | | - Sharon Suchy
- GeneDx, 207 Perry Parkway, Gaithersburg, MD 20877, USA
| | - Raymond J Louie
- Greenwood Genetic Center, 106 Gregor Mendel Cir, Greenwood, SC 29646, USA
| | - Shannon Bell
- Greenwood Genetic Center, 106 Gregor Mendel Cir, Greenwood, SC 29646, USA
| | - Roger E Stevenson
- Greenwood Genetic Center, 106 Gregor Mendel Cir, Greenwood, SC 29646, USA
| | - Justine Rousseau
- Sainte-Justine Hospital, 3175, Cote-Sainte-Catherine, Montreal, QC, Canada
| | | | - Christelle Retiere
- Etablissement Français du Sang, 44000 Nantes, France; CRCINA, INSERM, CNRS, Université d'Angers, Université de Nantes, 44000 Nantes, France; LabEx IGO, Nantes 44000, France
| | - Xiang-Jiao Yang
- Rosalind & Morris Goodman Cancer Research Center and Department of Medicine, McGill University, Montreal, QC H3A 1A3, Canada
| | - Philippe M Campeau
- Sainte-Justine Hospital, 3175, Cote-Sainte-Catherine, Montreal, QC, Canada
| | - Francisco Martinez
- Unidad de Genética, Grupo de Investigación Traslacional en Genética, Hospital Universitario y Politécnico La Fe, 46026 Valencia, Spain
| | - Jill A Rosenfeld
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
| | - Cédric Le Caignec
- Service de Génétique Médicale, CHU Nantes, 9 quai Moncousu, 44093 Nantes Cedex 1, France; L'Institut du Thorax, INSERM, CNRS, Université de Nantes, 44007 Nantes, France
| | - Sébastien Küry
- Service de Génétique Médicale, CHU Nantes, 9 quai Moncousu, 44093 Nantes Cedex 1, France; L'Institut du Thorax, INSERM, CNRS, Université de Nantes, 44007 Nantes, France
| | - Sandra Mercier
- Service de Génétique Médicale, CHU Nantes, 9 quai Moncousu, 44093 Nantes Cedex 1, France; L'Institut du Thorax, INSERM, CNRS, Université de Nantes, 44007 Nantes, France
| | - Kamran Moradkhani
- Service de Génétique Médicale, CHU Nantes, 9 quai Moncousu, 44093 Nantes Cedex 1, France
| | - Solène Conrad
- Service de Génétique Médicale, CHU Nantes, 9 quai Moncousu, 44093 Nantes Cedex 1, France
| | - Thomas Besnard
- Service de Génétique Médicale, CHU Nantes, 9 quai Moncousu, 44093 Nantes Cedex 1, France; L'Institut du Thorax, INSERM, CNRS, Université de Nantes, 44007 Nantes, France
| | - Benjamin Cogné
- Service de Génétique Médicale, CHU Nantes, 9 quai Moncousu, 44093 Nantes Cedex 1, France; L'Institut du Thorax, INSERM, CNRS, Université de Nantes, 44007 Nantes, France
| | - Nicholas Katsanis
- Center for Human Disease Modeling, Duke University Medical Center, Durham, NC 27701, USA; Advanced Center for Translational and Genetic Medicine, Stanley Manne Children's Research Institute, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, IL 60611, USA; Department of Pediatrics, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Stéphane Bézieau
- Service de Génétique Médicale, CHU Nantes, 9 quai Moncousu, 44093 Nantes Cedex 1, France; L'Institut du Thorax, INSERM, CNRS, Université de Nantes, 44007 Nantes, France
| | - Jeremie Poschmann
- Université de Nantes, CHU Nantes, Inserm, Centre de Recherche en Transplantation et Immunologie, UMR 1064, ITUN, 44000 Nantes, France.
| | - Erica E Davis
- Advanced Center for Translational and Genetic Medicine, Stanley Manne Children's Research Institute, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, IL 60611, USA; Department of Pediatrics, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA.
| | - Bertrand Isidor
- Service de Génétique Médicale, CHU Nantes, 9 quai Moncousu, 44093 Nantes Cedex 1, France; L'Institut du Thorax, INSERM, CNRS, Université de Nantes, 44007 Nantes, France.
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14
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Bielefeld V, Rousseau J, Denis C, Giraud L, Vallon A, Huet K, Lehuede K, Konig R, Lassalle D, Wendel J, Péré M, Plaineau M, Ducloyer JB, Couret C, Lebranchu P, Le Meur G. [Impact of prematurity on the optic nerve]. J Fr Ophtalmol 2021; 44:703-710. [PMID: 33840493 DOI: 10.1016/j.jfo.2020.06.048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 05/27/2020] [Accepted: 06/21/2020] [Indexed: 11/28/2022]
Abstract
INTRODUCTION Thanks to the progress made in the past few years in pediatric intensive care as well as the increased survival of preterm infants, the consequences of premature birth are increasingly well documented. With regard to ophthalmologic complications, retinopathy of prematurity is well described, but the optic nerve may also be affected. The goal of this study is to compare the optic nerves of preterm infants as a function of their gestational period with a control group of the same age. MATERIALS AND METHODS We conducted a case-control study pairing a full-term infant with each preterm infant. Inclusion criteria were: any child from 5- to 10-years-old, separated into three sub-groups according to their degree of prematurity. Variables were: cup/disc ratio, ocular biometry, intraocular pressure and RNFL thickness. RESULTS Thirty-seven preterm infants and 37 controls were included in the study. The mean age at the time of inclusion was 7.05 years for the preterm group and 7.19 years for the control group. No significant difference was observed in axial length or spherical equivalent (P=0.31 and P=0.98, respectively). No significant difference was observed in pachymetry or intraocular pressure (P=0.28 and P=0.22, respectively). We observed a significant increase of 0.1 in the cup/disc ratio of the preterm group compared to the control group (P<0.05). The preterm group cup/disc ratio was 0.36 versus 0.27 for the control group. No significant difference was observed in the 7 quadrants of RNFL between the two groups. However, when comparing infants born before 28 weeks gestation with the control group, we observed a mean decrease of 14.5 microns in the superior temporal sector (P=0.04), a 9 micron decrease in the global thickness G (P=0.03) and a 12.7 micron decrease in the nasal sector (P=0.01). CONCLUSIONS In the case of the studied children (aged 5 to 10), the reduced RNFL fiber thickness is a phenomenon dependent essentially on the stage of prematurity. It would be useful to follow these preterm populations over the long term and to compare them to a matched control group to be able to obtain functional results.
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Affiliation(s)
| | | | - C Denis
- CHU de Nantes, Nantes, France
| | | | | | - K Huet
- CHU de Nantes, Nantes, France
| | | | - R Konig
- CHU de Nantes, Nantes, France
| | | | | | - M Péré
- CHU de Nantes, Nantes, France
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15
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Bogado Pascottini O, Spricigo JFW, Van Schyndel SJ, Mion B, Rousseau J, Weese JS, LeBlanc SJ. Effects of parity, blood progesterone, and non-steroidal anti-inflammatory treatment on the dynamics of the uterine microbiota of healthy postpartum dairy cows. PLoS One 2021; 16:e0233943. [PMID: 33606706 PMCID: PMC7895344 DOI: 10.1371/journal.pone.0233943] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Accepted: 01/28/2021] [Indexed: 01/10/2023] Open
Abstract
This study evaluated the effects of treatment with meloxicam (a non-steroidal anti-inflammatory drug), parity, and blood progesterone concentration on the dynamics of the uterine microbiota of 16 clinically healthy postpartum dairy cows. Seven primiparous and 9 multiparous postpartum Holstein cows either received meloxicam (0.5 mg/kg SC, n = 7 cows) once daily for 4 days (10 to 13 days in milk (DIM)) or were untreated (n = 9 cows). Endometrial cytology samples were collected by cytobrush at 10, 21, and 35 DIM, from which the microbiota analysis was conducted using 16S rRNA gene sequence analysis. A radioimmunoassay was used to measure progesterone concentration in blood serum samples at 35 DIM and cows were classified as ˃ 1 ng/mL (n = 10) or ≤ 1 ng/mL (n = 6). Alpha diversity for bacterial genera (Chao1, Shannon-Weiner, and Camargo’s evenness indices) were not affected by DIM, meloxicam treatment, parity, or progesterone category. For beta diversity (genera level), principal coordinate analysis (Bray-Curtis) showed differences in microbiota between parity groups. At the phylum level, the relative abundance of Actinobacteria was greater in primiparous than multiparous cows. At the genus level, there was lesser relative abundance of Bifidobacterium, Lactobacillus, Neisseriaceae, Paracoccus, Staphylococcus, and Streptococcus and greater relative abundance of Bacillus and Fusobacterium in primiparous than multiparous cows. Bray-Curtis dissimilarity did not differ by DIM at sampling, meloxicam treatment, or progesterone category at 35 DIM. In conclusion, uterine bacterial composition was not different at 10, 21, or 35 DIM, and meloxicam treatment or progesterone category did not affect the uterine microbiota in clinically healthy postpartum dairy cows. Primiparous cows presented a different composition of uterine bacteria than multiparous cows. The differences in microbiota associated with parity might be attributable to changes that occur consequent to the first calving, but this hypothesis should be investigated further.
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Affiliation(s)
- O. Bogado Pascottini
- Population Medicine, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada
- * E-mail:
| | - J. F. W. Spricigo
- Department of Animal Biosciences, University of Guelph, Guelph, ON, Canada
| | - S. J. Van Schyndel
- Population Medicine, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada
| | - B. Mion
- Department of Animal Biosciences, University of Guelph, Guelph, ON, Canada
| | - J. Rousseau
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada
| | - J. S. Weese
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada
| | - S. J. LeBlanc
- Population Medicine, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada
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16
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Li C, Beauregard-Lacroix E, Kondratev C, Rousseau J, Heo AJ, Neas K, Graham BH, Rosenfeld JA, Bacino CA, Wagner M, Wenzel M, Al Mutairi F, Al Deiab H, Gleeson JG, Stanley V, Zaki MS, Kwon YT, Leroux MR, Campeau PM. UBR7 functions with UBR5 in the Notch signaling pathway and is involved in a neurodevelopmental syndrome with epilepsy, ptosis, and hypothyroidism. Am J Hum Genet 2021; 108:134-147. [PMID: 33340455 DOI: 10.1016/j.ajhg.2020.11.018] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2020] [Accepted: 11/23/2020] [Indexed: 11/17/2022] Open
Abstract
The ubiquitin-proteasome system facilitates the degradation of unstable or damaged proteins. UBR1-7, which are members of hundreds of E3 ubiquitin ligases, recognize and regulate the half-life of specific proteins on the basis of their N-terminal sequences ("N-end rule"). In seven individuals with intellectual disability, epilepsy, ptosis, hypothyroidism, and genital anomalies, we uncovered bi-allelic variants in UBR7. Their phenotype differs significantly from that of Johanson-Blizzard syndrome (JBS), which is caused by bi-allelic variants in UBR1, notably by the presence of epilepsy and the absence of exocrine pancreatic insufficiency and hypoplasia of nasal alae. While the mechanistic etiology of JBS remains uncertain, mutation of both Ubr1 and Ubr2 in the mouse or of the C. elegans UBR5 ortholog results in Notch signaling defects. Consistent with a potential role in Notch signaling, C. elegans ubr-7 expression partially overlaps with that of ubr-5, including in neurons, as well as the distal tip cell that plays a crucial role in signaling to germline stem cells via the Notch signaling pathway. Analysis of ubr-5 and ubr-7 single mutants and double mutants revealed genetic interactions with the Notch receptor gene glp-1 that influenced development and embryo formation. Collectively, our findings further implicate the UBR protein family and the Notch signaling pathway in a neurodevelopmental syndrome with epilepsy, ptosis, and hypothyroidism that differs from JBS. Further studies exploring a potential role in histone regulation are warranted given clinical overlap with KAT6B disorders and the interaction of UBR7 and UBR5 with histones.
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Affiliation(s)
- Chunmei Li
- Department of Molecular Biology and Biochemistry, and Centre for Cell Biology, Development, and Disease Simon Fraser University, Burnaby, BC V5A 1S6, Canada
| | - Eliane Beauregard-Lacroix
- Medical Genetics Division, Department of Pediatrics, Sainte-Justine University Hospital Center, Montreal, QC H3T 1C5, Canada
| | - Christine Kondratev
- Department of Molecular Biology and Biochemistry, and Centre for Cell Biology, Development, and Disease Simon Fraser University, Burnaby, BC V5A 1S6, Canada
| | - Justine Rousseau
- CHU Sainte-Justine Research Center, University of Montreal, Montreal, QC H3T 1C5, Canada
| | - Ah Jung Heo
- Department of Biomedical Sciences, College of Medicine, Seoul National University, Seoul 08826, Republic of Korea
| | - Katherine Neas
- Genetic Health Service New Zealand, Wellington South 6242, New Zealand
| | - Brett H Graham
- Department of Medical and Molecular Genetics, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Jill A Rosenfeld
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA; Baylor Genetics Laboratory, Houston, TX 77021, USA
| | - Carlos A Bacino
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
| | - Matias Wagner
- Institute of Human Genetics, School of Medicine, Technical University Munich and Institute of Neurogenomics, Helmholtz Zentrum Munchen, Neuherberg 85764, Germany
| | | | - Fuad Al Mutairi
- King Abdullah International Medical Research Centre, King Saud Bin Abdulaziz University for Health Sciences, and Medical Genetic Division, Department of Pediatrics, King Abdulaziz Medical City, Riyadh 11481, Saudi Arabia
| | - Hamad Al Deiab
- King Abdullah International Medical Research Centre, King Saud Bin Abdulaziz University for Health Sciences, and Medical Genetic Division, Department of Pediatrics, King Abdulaziz Medical City, Riyadh 11481, Saudi Arabia
| | - Joseph G Gleeson
- Rady Children's Institute for Genomic Medicine, University of California, San Diego, La Jolla, CA 92093, USA
| | - Valentina Stanley
- Rady Children's Institute for Genomic Medicine, University of California, San Diego, La Jolla, CA 92093, USA
| | - Maha S Zaki
- Clinical Genetics Department, Human Genetics and Genome Research Division, National Research Centre, Cairo 12311, Egypt
| | - Yong Tae Kwon
- Department of Biomedical Sciences, College of Medicine, Seoul National University, Seoul 08826, Republic of Korea
| | - Michel R Leroux
- Department of Molecular Biology and Biochemistry, and Centre for Cell Biology, Development, and Disease Simon Fraser University, Burnaby, BC V5A 1S6, Canada.
| | - Philippe M Campeau
- CHU Sainte-Justine Research Center, University of Montreal, Montreal, QC H3T 1C5, Canada.
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17
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Jouannic JM, Blondiaux E, Senat MV, Friszer S, Adamsbaum C, Rousseau J, Hornoy P, Letourneau A, de Laveaucoupet J, Lecarpentier E, Rosenblatt J, Quibel T, Mollot M, Ancel PY, Alison M, Goffinet F. Prognostic value of diffusion-weighted magnetic resonance imaging of brain in fetal growth restriction: results of prospective multicenter study. Ultrasound Obstet Gynecol 2020; 56:893-900. [PMID: 31765031 DOI: 10.1002/uog.21926] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 11/08/2019] [Accepted: 11/15/2019] [Indexed: 06/10/2023]
Abstract
OBJECTIVE To measure prospectively apparent diffusion coefficient (ADC) values between 28 and 32 weeks of gestation in different cerebral territories of fetuses with estimated fetal weight (EFW) ≤ 5th centile, and analyze their association with adverse perinatal outcome. METHODS This was a prospective study involving six tertiary-level perinatal centers. In the period 22 November 2016 to 11 September 2017, we included singleton, small-for-gestational-age (SGA) fetuses with EFW ≤ 5th percentile, between 28 and 32 weeks of gestation, regardless of the umbilical artery Doppler and maternal uterine artery Doppler findings. A fetal magnetic resonance imaging (MRI) examination with diffusion-weighted sequences (DWI) was performed within 14 days following inclusion and before 32 weeks. ADC values were calculated in the frontal and occipital white matter, basal ganglia and cerebellar hemispheres. An ultrasound examination was performed within 1 week prior to the MRI examination. The primary outcome was a composite measure of adverse perinatal outcome, defined as any of the following: perinatal death; admission to neonatal intensive care unit with mechanical ventilation > 48 h; necrotizing enterocolitis; Grade III-IV intraventricular hemorrhage; periventricular leukomalacia. A univariate comparison of median ADC values in all cerebral territories between fetuses with and those without adverse perinatal outcome was performed. The association between ADC values and adverse perinatal outcome was then analyzed using multilevel logistic regression models to adjust for other common prognostic factors for growth-restricted fetuses. RESULTS MRI was performed in 64 patients, of whom five were excluded owing to fetal movement artifacts on DWI and two were excluded for termination of pregnancy with no link to fetal growth restriction (FGR). One intrauterine death occurred secondary to severe FGR. Among the 56 liveborn neonates, delivered at a mean ± SD gestational age of 33.6 ± 3.0 weeks, with a mean birth weight of 1441 ± 566 g, four neonatal deaths occurred. In addition, two neonates required prolonged mechanical ventilation, one of whom also developed necrotizing enterocolitis. Overall, therefore, seven out of 57 (12.3%) cases had an adverse perinatal outcome (95% CI, 3.8-20.8%). The ADC values in the frontal region were significantly lower in the group with adverse perinatal outcome vs those in the group with favorable outcome (mean values of both hemispheres, 1.68 vs 1.78 × 10-3 mm2 /s; P = 0.04). No significant difference in ADC values was observed between the two groups in any other cerebral territory. A cut-off value of 1.70 × 10-3 mm2 /s was associated with a sensitivity of 57% (95% CI, 18-90%), a specificity of 78% (95% CI, 63-88%), a positive predictive value of 27% (95% CI, 8-55%) and a negative predictive value of 93% (95% CI, 80-98%) for the prediction of adverse perinatal outcome. A mean frontal ADC value < 1.70 × 10-3 mm2 /s was not associated significantly with an increased risk of adverse perinatal outcome, either in the univariate analysis (P = 0.07), or when adjusting for gestational age at MRI and fetal sex (odds ratio (OR), 6.06 (95% CI, 0.9-37.1), P = 0.051) or for umbilical artery Doppler (OR, 6.08 (95% CI, 0.89-41.44)). CONCLUSION This first prospective, multicenter, cohort study using DWI in the setting of SGA found lower ADC values in the frontal white-matter territory in fetuses with, compared with those without, adverse perinatal outcome. To determine the prognostic value of these changes, further standardized evaluation of the neurodevelopment of children born with growth restriction is required. Copyright © 2019 ISUOG. Published by John Wiley & Sons Ltd.
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Affiliation(s)
- J M Jouannic
- Service de Médecine Foetale, Hôpital Armand Trousseau, Médecine Sorbonne Université, APHP, Paris, France
| | - E Blondiaux
- Service de Radiopédiatrie, Hôpital Armand Trousseau, Médecine Sorbonne Université, APHP, Paris, France
| | - M V Senat
- Service de Gynécologie-Obstétrique, Hôpital Bicêtre, Université Paris Sud, Le Kremlin-Bicêtre, France
| | - S Friszer
- Service de Médecine Foetale, Hôpital Armand Trousseau, Médecine Sorbonne Université, APHP, Paris, France
| | - C Adamsbaum
- Service de Radiopédiatrie, Hôpital Bicêtre, Université Paris Sud, Le Kremlin-Bicêtre, France
| | - J Rousseau
- Obstetrical, Perinatal, and Pediatric Epidemiology Team and Biostatistics Sorbonne Paris Cité Research Center (U1153), INSERM, Paris, France
- Université Paris Descartes, Paris, France
| | - P Hornoy
- Service de Radiologie, Hôpital Cochin, APHP, Paris, France
| | - A Letourneau
- Service de Gynécologie-Obstétrique, Hôpital Antoine Béclère, Université Paris Sud, APHP, Clamart, France
| | - J de Laveaucoupet
- Service de Radiologie, Hôpital Antoine Béclère, APHP, Clamart, France
| | - E Lecarpentier
- Maternité Port Royal, Hôpital Cochin, APHP, DHU Risques et Grossesse, Université Paris Descartes, Paris, France
| | - J Rosenblatt
- Service de Gynécologie-Obstétrique, Hôpital Robert Debré, APHP, Paris, France
| | - T Quibel
- Service de Gynécologie-Obstétrique, Centre Hospitalier Intercommunal, Poissy, France
| | - M Mollot
- Service de Radiologie, Centre Hospitalier Intercommunal, Poissy, France
| | - P Y Ancel
- Obstetrical, Perinatal, and Pediatric Epidemiology Team and Biostatistics Sorbonne Paris Cité Research Center (U1153), INSERM, Paris, France
| | - M Alison
- Service de Radiopédiatrie, Hôpital Robert Debré, APHP, Université Paris Diderot, Paris, France
| | - F Goffinet
- Obstetrical, Perinatal, and Pediatric Epidemiology Team and Biostatistics Sorbonne Paris Cité Research Center (U1153), INSERM, Paris, France
- Maternité Port Royal, Hôpital Cochin, APHP, DHU Risques et Grossesse, Université Paris Descartes, Paris, France
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18
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Gary C, Briand A, Lespine A, Aho L, Jannic A, Rousseau J, Foucher L, Lilin T, Botterel F, Chosidow O, Guillot J, Bernigaud C. Efficacité d’une forte dose d’ivermectine et d’une dose unique de moxidectine dans un modèle porcin de gale. Ann Dermatol Venereol 2020. [DOI: 10.1016/j.annder.2020.09.115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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19
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Collins M, Miranda V, Rousseau J, Kratz LE, Campeau PM. A homozygous variant in the Lamin B receptor gene LBR results in a non-lethal skeletal dysplasia without Pelger-Huët anomaly. Bone 2020; 141:115601. [PMID: 32827848 DOI: 10.1016/j.bone.2020.115601] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 08/06/2020] [Accepted: 08/15/2020] [Indexed: 11/30/2022]
Abstract
Lamin B receptor, a member of the sterol reductase family, is an inner nuclear membrane protein which binds lamin B proteins and is involved in the organization of heterochromatin. Mutations in LBR have been associated with a variety of disorders, such as Pelger-Huët anomaly, a benign abnormality affecting neutrophils, and Greenberg Dysplasia, a lethal condition in the perinatal period. We identified a homozygous LBR missense mutation (NM_002296.4: c.1366C > G, p.(Leu456Val)) in two adult sisters with a Lamin B receptor-related disorder associated with a skeletal dysplasia milder than Greenberg Dysplasia. Individual 1 has short stature with short limbs (mostly rhizomelic for the upper extremities, and mesomelic for the lower extremities), limited elbow extension. She required Achilles tenotomy, and does not have facial dysmorphisms. Individual 2 has similar skeletal features, but also has bowed femurs, osteopenia, spastic paraplegia of the lower limbs, equinovarus feet, a single kidney, neurogenic bladder, obstructive hydronephrosis, scoliosis and syndactyly of the toes. This report provides additional evidence of variability for Lamin B receptor-related disorders associated with a non-lethal skeletal dysplasia without Pelger-Huët anomaly. We describe a novel pathogenic variant that has not been previously associated with disease and demonstrate the effect of this variant on sterol C14-reductase activity.
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Affiliation(s)
- Meagan Collins
- CHU Sainte Justine Research Center, Université de Montréal, Montreal, QC, Canada; Child Health and Human Development Program, Research Institute of the McGill University Health Centre, Montreal, QC, Canada
| | - Valancy Miranda
- Medical Genetics Division, Department of Pediatrics, Sainte-Justine University Hospital Center, Montreal, QC, Canada
| | - Justine Rousseau
- CHU Sainte Justine Research Center, Université de Montréal, Montreal, QC, Canada
| | - Lisa E Kratz
- Biochemical Genetics Laboratory, Kennedy Krieger Institute, Baltimore, MD, United States of America
| | - Philippe M Campeau
- CHU Sainte Justine Research Center, Université de Montréal, Montreal, QC, Canada; Medical Genetics Division, Department of Pediatrics, Sainte-Justine University Hospital Center, Montreal, QC, Canada.
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20
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Li L, Ghorbani M, Weisz-Hubshman M, Rousseau J, Thiffault I, Schnur RE, Breen C, Oegema R, Weiss MM, Waisfisz Q, Welner S, Kingston H, Hills JA, Boon EM, Basel-Salmon L, Konen O, Goldberg-Stern H, Bazak L, Tzur S, Jin J, Bi X, Bruccoleri M, McWalter K, Cho MT, Scarano M, Schaefer GB, Brooks SS, Hughes SS, van Gassen KLI, van Hagen JM, Pandita TK, Agrawal PB, Campeau PM, Yang XJ. Lysine acetyltransferase 8 is involved in cerebral development and syndromic intellectual disability. J Clin Invest 2020; 130:1431-1445. [PMID: 31794431 DOI: 10.1172/jci131145] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Accepted: 11/21/2019] [Indexed: 12/15/2022] Open
Abstract
Epigenetic integrity is critical for many eukaryotic cellular processes. An important question is how different epigenetic regulators control development and influence disease. Lysine acetyltransferase 8 (KAT8) is critical for acetylation of histone H4 at lysine 16 (H4K16), an evolutionarily conserved epigenetic mark. It is unclear what roles KAT8 plays in cerebral development and human disease. Here, we report that cerebrum-specific knockout mice displayed cerebral hypoplasia in the neocortex and hippocampus, along with improper neural stem and progenitor cell (NSPC) development. Mutant cerebrocortical neuroepithelia exhibited faulty proliferation, aberrant neurogenesis, massive apoptosis, and scant H4K16 propionylation. Mutant NSPCs formed poor neurospheres, and pharmacological KAT8 inhibition abolished neurosphere formation. Moreover, we describe KAT8 variants in 9 patients with intellectual disability, seizures, autism, dysmorphisms, and other anomalies. The variants altered chromobarrel and catalytic domains of KAT8, thereby impairing nucleosomal H4K16 acetylation. Valproate was effective for treating epilepsy in at least 2 of the individuals. This study uncovers a critical role of KAT8 in cerebral and NSPC development, identifies 9 individuals with KAT8 variants, and links deficient H4K16 acylation directly to intellectual disability, epilepsy, and other developmental anomalies.
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Affiliation(s)
- Lin Li
- Rosalind and Morris Goodman Cancer Research Centre and Department of Medicine, McGill University, Montreal, Quebec, Canada
| | - Mohammad Ghorbani
- Rosalind and Morris Goodman Cancer Research Centre and Department of Medicine, McGill University, Montreal, Quebec, Canada
| | - Monika Weisz-Hubshman
- Pediatric Genetics Unit, Schneider Children's Medical Center of Israel, Petach Tikva, Israel.,Raphael Recanati Genetic Institute, Rabin Medical Center, Petach Tikva, Israel.,Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Justine Rousseau
- Paediatric Department, CHU Sainte-Justine Hospital, University of Montreal, Quebec, Canada
| | - Isabelle Thiffault
- Center for Pediatric Genomic Medicine & Division of Clinical Genetics, Children's Mercy Hospital, Kansas City, Missouri, USA.,Faculty of Medicine, University of Missouri-Kansas City, Kansas City, Missouri, USA
| | - Rhonda E Schnur
- Division of Genetics, Cooper University Health Care, Camden, New Jersey, USA.,GeneDx, Gaithersburg, Maryland, USA
| | - Catherine Breen
- Manchester Centre for Genomic Medicine, Central Manchester University Hospitals NHS Foundation Trust, Saint Mary's Hospital, Manchester, United Kingdom
| | - Renske Oegema
- Department of Genetics, University Medical Center Utrecht, Utrecht, Netherlands
| | - Marjan Mm Weiss
- Department of Clinical Genetics, Amsterdam University Medical Center, Amsterdam, Netherlands
| | - Quinten Waisfisz
- Department of Clinical Genetics, Amsterdam University Medical Center, Amsterdam, Netherlands
| | - Sara Welner
- Division of Pediatric Medical Genetics, The State University of New Jersey, Rutgers Robert Wood Johnson Medical School, New Brunswick, New Jersey, USA
| | - Helen Kingston
- Manchester Centre for Genomic Medicine, Central Manchester University Hospitals NHS Foundation Trust, Saint Mary's Hospital, Manchester, United Kingdom
| | - Jordan A Hills
- University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
| | - Elles Mj Boon
- Department of Clinical Genetics, Amsterdam University Medical Center, Amsterdam, Netherlands
| | - Lina Basel-Salmon
- Pediatric Genetics Unit, Schneider Children's Medical Center of Israel, Petach Tikva, Israel.,Raphael Recanati Genetic Institute, Rabin Medical Center, Petach Tikva, Israel.,Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.,Felsenstein Medical Research Center, Rabin Medical Center, Petach Tikva, Israel
| | - Osnat Konen
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.,Imaging Department, Schneider Children's Medical Center of Israel, Petach Tikva, Israel
| | - Hadassa Goldberg-Stern
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.,Epilepsy Unit and EEG Laboratory, Schneider Medical Center, Petach Tikva, Israel
| | - Lily Bazak
- Raphael Recanati Genetic Institute, Rabin Medical Center, Petach Tikva, Israel.,Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Shay Tzur
- Laboratory of Molecular Medicine, Rappaport Faculty of Medicine and Research Institute, Technion-Israel Institute of Technology, Haifa, Israel.,Genomic Research Department, Emedgene Technologies, Tel Aviv, Israel
| | - Jianliang Jin
- Rosalind and Morris Goodman Cancer Research Centre and Department of Medicine, McGill University, Montreal, Quebec, Canada.,Research Center for Bone and Stem Cells, Department of Human Anatomy, Key Laboratory of Aging & Disease, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Xiuli Bi
- Rosalind and Morris Goodman Cancer Research Centre and Department of Medicine, McGill University, Montreal, Quebec, Canada
| | - Michael Bruccoleri
- Rosalind and Morris Goodman Cancer Research Centre and Department of Medicine, McGill University, Montreal, Quebec, Canada
| | | | | | - Maria Scarano
- Division of Genetics, Cooper University Health Care, Camden, New Jersey, USA
| | | | - Susan S Brooks
- Division of Pediatric Medical Genetics, The State University of New Jersey, Rutgers Robert Wood Johnson Medical School, New Brunswick, New Jersey, USA
| | - Susan Starling Hughes
- Center for Pediatric Genomic Medicine & Division of Clinical Genetics, Children's Mercy Hospital, Kansas City, Missouri, USA.,Faculty of Medicine, University of Missouri-Kansas City, Kansas City, Missouri, USA
| | - K L I van Gassen
- Department of Genetics, University Medical Center Utrecht, Utrecht, Netherlands
| | - Johanna M van Hagen
- Department of Clinical Genetics, Amsterdam University Medical Center, Amsterdam, Netherlands
| | - Tej K Pandita
- Department of Radiation Oncology, Houston Methodist Research Institute, Houston, Texas, USA
| | - Pankaj B Agrawal
- Divisions of Newborn Medicine and Genetics and Genomics, The Manton Center for Orphan Disease Research, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Philippe M Campeau
- Paediatric Department, CHU Sainte-Justine Hospital, University of Montreal, Quebec, Canada
| | - Xiang-Jiao Yang
- Rosalind and Morris Goodman Cancer Research Centre and Department of Medicine, McGill University, Montreal, Quebec, Canada.,Departments of Biochemistry and Medicine, McGill University Health Center, Montreal, Quebec, Canada
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Lebeau B, Bonne M, Comparot J, Rousseau J, Michelin L, Blin J, Brunet S. HDS of 4,6-dimethyldibenzothiophene over CoMoS supported mesoporous SiO2-TiO2 materials. Catal Today 2020. [DOI: 10.1016/j.cattod.2019.02.052] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Zwerling B, Rousseau J, Ward K, Lo A, Harken T. P39 Nurses experience of perinatal loss: A qualitative study on caring for patients undergoing labor induction for fetal demise or fetal anomalies. Contraception 2020. [DOI: 10.1016/j.contraception.2020.07.058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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23
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Humbert J, Salian S, Makrythanasis P, Lemire G, Rousseau J, Ehresmann S, Garcia T, Alasiri R, Bottani A, Hanquinet S, Beaver E, Heeley J, Smith ACM, Berger SI, Antonarakis SE, Yang XJ, Côté J, Campeau PM. De Novo KAT5 Variants Cause a Syndrome with Recognizable Facial Dysmorphisms, Cerebellar Atrophy, Sleep Disturbance, and Epilepsy. Am J Hum Genet 2020; 107:564-574. [PMID: 32822602 PMCID: PMC7477011 DOI: 10.1016/j.ajhg.2020.08.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Accepted: 07/21/2020] [Indexed: 12/11/2022] Open
Abstract
KAT5 encodes an essential lysine acetyltransferase, previously called TIP60, which is involved in regulating gene expression, DNA repair, chromatin remodeling, apoptosis, and cell proliferation; but it remains unclear whether variants in this gene cause a genetic disease. Here, we study three individuals with heterozygous de novo missense variants in KAT5 that affect normally invariant residues, with one at the chromodomain (p.Arg53His) and two at or near the acetyl-CoA binding site (p.Cys369Ser and p.Ser413Ala). All three individuals have cerebral malformations, seizures, global developmental delay or intellectual disability, and severe sleep disturbance. Progressive cerebellar atrophy was also noted. Histone acetylation assays with purified variant KAT5 demonstrated that the variants decrease or abolish the ability of the resulting NuA4/TIP60 multi-subunit complexes to acetylate the histone H4 tail in chromatin. Transcriptomic analysis in affected individual fibroblasts showed deregulation of multiple genes that control development. Moreover, there was also upregulated expression of PER1 (a key gene involved in circadian control) in agreement with sleep anomalies in all of the individuals. In conclusion, dominant missense KAT5 variants cause histone acetylation deficiency with transcriptional dysregulation of multiples genes, thereby leading to a neurodevelopmental syndrome with sleep disturbance, cerebellar atrophy, and facial dysmorphisms, and suggesting a recognizable syndrome.
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Affiliation(s)
- Jonathan Humbert
- St-Patrick Research Group in Basic Oncology, Laval University Cancer Research Center, Axe Oncologie du Centre de Recherche du Centre Hospitalier Universitaire de Quebec-Université Laval, Quebec City, QC G1R 3S3, Canada
| | - Smrithi Salian
- Sainte-Justine Hospital Research Center, University of Montreal, Montreal, QC H3T 1C5, Canada
| | - Periklis Makrythanasis
- Biomedical Research Foundation of the Academy of Athens, Athens 115 27, Greece; Department of Genetic Medicine and Development, University of Geneva Medical School and Geneva University Hospitals, 1211 Geneva, Switzerland
| | - Gabrielle Lemire
- Sainte-Justine Hospital Research Center, University of Montreal, Montreal, QC H3T 1C5, Canada
| | - Justine Rousseau
- Sainte-Justine Hospital Research Center, University of Montreal, Montreal, QC H3T 1C5, Canada
| | - Sophie Ehresmann
- Sainte-Justine Hospital Research Center, University of Montreal, Montreal, QC H3T 1C5, Canada
| | - Thomas Garcia
- Sainte-Justine Hospital Research Center, University of Montreal, Montreal, QC H3T 1C5, Canada
| | - Rami Alasiri
- Rosalind and Morris Goodman Cancer Research Centre, Department of Medicine, McGill University, Montreal, QC H3A 1A3, Canada
| | - Armand Bottani
- Service of Genetic Medicine, Geneva University Hospitals, 1211 Geneva, Switzerland
| | - Sylviane Hanquinet
- Unit of Pediatric Radiology, Geneva University Hospitals, 1211 Geneva, Switzerland
| | - Erin Beaver
- Mercy Kids Genetics, St. Louis, MO 63141, USA
| | | | - Ann C M Smith
- Office of the Clinical Director, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD 20894, USA
| | - Seth I Berger
- Children's National Health System, Washington, DC 20010, USA
| | - Stylianos E Antonarakis
- Department of Genetic Medicine and Development, University of Geneva Medical School and Geneva University Hospitals, 1211 Geneva, Switzerland
| | - Xiang-Jiao Yang
- Rosalind and Morris Goodman Cancer Research Centre, Department of Medicine, McGill University, Montreal, QC H3A 1A3, Canada
| | - Jacques Côté
- St-Patrick Research Group in Basic Oncology, Laval University Cancer Research Center, Axe Oncologie du Centre de Recherche du Centre Hospitalier Universitaire de Quebec-Université Laval, Quebec City, QC G1R 3S3, Canada
| | - Philippe M Campeau
- Sainte-Justine Hospital Research Center, University of Montreal, Montreal, QC H3T 1C5, Canada.
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24
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Pascottini OB, Van Schyndel SJ, Spricigo JFW, Rousseau J, Weese JS, LeBlanc SJ. Dynamics of uterine microbiota in postpartum dairy cows with clinical or subclinical endometritis. Sci Rep 2020; 10:12353. [PMID: 32704012 PMCID: PMC7378066 DOI: 10.1038/s41598-020-69317-z] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Accepted: 07/09/2020] [Indexed: 12/22/2022] Open
Abstract
Our objectives were to describe and compare the uterine bacterial composition of postpartum Holstein cows diagnosed as healthy (n = 8), subclinical endometritis (SCE; n = 8), or clinical endometritis (CE; n = 5) in the fifth week postpartum. We did metagenomic analyses of 16S rRNA gene sequences from endometrial cytobrush samples at 10, 21, and 35 days in milk (DIM), and endometrial bacterial culture at 35 DIM. Uterine bacterial composition in healthy, SCE, and CE was stable at 10, 21, and 35 DIM. Alpha and beta diversities showed a different uterine microbiome from CE compared to healthy or SCE, but no differences were found between healthy and SCE cows. At the phylum level, the relative abundance of Bacteroidetes and Fusobacteria, and at genera level, of Trueperella was greater in CE than healthy or SCE cows. Trueperella pyogenes was the predominant bacteria cultured in cows with CE, and a wide variety of bacterial growth was found in healthy and SCE cows. Bacteria that grew in culture were represented within the most abundant bacterial genera based on metagenomic sequencing. The uterine microbiota was similar between SCE and healthy, but the microbiome in cows with CE had a loss of bacterial diversity.
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Affiliation(s)
- O Bogado Pascottini
- Population Medicine, Ontario Veterinary College, University of Guelph, Guelph, ON, N1G 2W1, Canada.
| | - S J Van Schyndel
- Population Medicine, Ontario Veterinary College, University of Guelph, Guelph, ON, N1G 2W1, Canada
| | - J F W Spricigo
- Department of Animal Biosciences, University of Guelph, Guelph, ON, N1G 2W1, Canada
| | - J Rousseau
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, ON, N1G 2W1, Canada
| | - J S Weese
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, ON, N1G 2W1, Canada
| | - S J LeBlanc
- Population Medicine, Ontario Veterinary College, University of Guelph, Guelph, ON, N1G 2W1, Canada
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Nguyen TTM, Murakami Y, Mobilio S, Niceta M, Zampino G, Philippe C, Moutton S, Zaki MS, James KN, Musaev D, Mu W, Baranano K, Nance JR, Rosenfeld JA, Braverman N, Ciolfi A, Millan F, Person RE, Bruel AL, Thauvin-Robinet C, Ververi A, DeVile C, Male A, Efthymiou S, Maroofian R, Houlden H, Maqbool S, Rahman F, Baratang NV, Rousseau J, St-Denis A, Elrick MJ, Anselm I, Rodan LH, Tartaglia M, Gleeson J, Kinoshita T, Campeau PM. Bi-allelic Variants in the GPI Transamidase Subunit PIGK Cause a Neurodevelopmental Syndrome with Hypotonia, Cerebellar Atrophy, and Epilepsy. Am J Hum Genet 2020; 106:484-495. [PMID: 32220290 DOI: 10.1016/j.ajhg.2020.03.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Accepted: 03/05/2020] [Indexed: 12/12/2022] Open
Abstract
Glycosylphosphatidylinositol (GPI)-anchored proteins are critical for embryogenesis, neurogenesis, and cell signaling. Variants in several genes participating in GPI biosynthesis and processing lead to decreased cell surface presence of GPI-anchored proteins (GPI-APs) and cause inherited GPI deficiency disorders (IGDs). In this report, we describe 12 individuals from nine unrelated families with 10 different bi-allelic PIGK variants. PIGK encodes a component of the GPI transamidase complex, which attaches the GPI anchor to proteins. Clinical features found in most individuals include global developmental delay and/or intellectual disability, hypotonia, cerebellar ataxia, cerebellar atrophy, and facial dysmorphisms. The majority of the individuals have epilepsy. Two individuals have slightly decreased levels of serum alkaline phosphatase, while eight do not. Flow cytometric analysis of blood and fibroblasts from affected individuals showed decreased cell surface presence of GPI-APs. The overexpression of wild-type (WT) PIGK in fibroblasts rescued the levels of cell surface GPI-APs. In a knockout cell line, transfection with WT PIGK also rescued the GPI-AP levels, but transfection with the two tested mutant variants did not. Our study not only expands the clinical and known genetic spectrum of IGDs, but it also expands the genetic differential diagnosis for cerebellar atrophy. Given the fact that cerebellar atrophy is seen in other IGDs, flow cytometry for GPI-APs should be considered in the work-ups of individuals presenting this feature.
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Affiliation(s)
- Thi Tuyet Mai Nguyen
- CHU-Sainte Justine Research Center, University of Montreal, Montreal, QC, Canada, H3T1C5
| | - Yoshiko Murakami
- Research Institute for Microbial Diseases, Osaka University, Osaka 565-0871, Japan
| | - Sabrina Mobilio
- Division of Medical Genetics, Northwell Health, Manhasset, NY 11030, USA
| | - Marcello Niceta
- Genetics and Rare Diseases Research Division, Ospedale Pediatrico Bambino Gesù, IRCCS, 00146 Rome, Italy
| | - Giuseppe Zampino
- Center for Rare Disease and Congenital Defects, Fondazione Policlinico Universitario A. Gemelli, Università Cattolica del Sacro Cuore, 00168 Rome, Italy
| | - Christophe Philippe
- UF Innovation en diagnostic génomique des maladies rares, CHU Dijon Bourgogne, and INSERM UMR1231 GAD, F-21000, Dijon, France
| | - Sébastien Moutton
- Reference Center for Developmental Anomalies, Department of Medical Genetics, Dijon University Hospital, Dijon, France
| | - Maha S Zaki
- Clinical Genetics Department, Human Genetics and Genome Research Division, National Research Centre, Cairo 12311, Egypt
| | - Kiely N James
- Laboratory for Pediatric Brain Disease, Howard Hughes Medical Institute, University of California, San Diego, La Jolla, CA 92093, USA; Rady Children's Institute for Genomic Medicine, Rady Children's Hospital, San Diego, CA 92123, USA
| | - Damir Musaev
- Laboratory for Pediatric Brain Disease, Howard Hughes Medical Institute, University of California, San Diego, La Jolla, CA 92093, USA; Rady Children's Institute for Genomic Medicine, Rady Children's Hospital, San Diego, CA 92123, USA
| | - Weiyi Mu
- Institute of Genetic Medicine, Johns Hopkins University, Baltimore MD, USA
| | - Kristin Baranano
- Department of Neurology, Johns Hopkins School of Medicine, Baltimore, MD, 21287 USA
| | - Jessica R Nance
- Department of Neurology, Johns Hopkins School of Medicine, Baltimore, MD, 21287 USA
| | | | - Nancy Braverman
- Department of Human Genetics, McGill University and Montreal Children's Hospital, Montreal, QC, Canada, H4A 3J1
| | - Andrea Ciolfi
- Genetics and Rare Diseases Research Division, Ospedale Pediatrico Bambino Gesù, IRCCS, 00146 Rome, Italy
| | | | | | - Ange-Line Bruel
- UF Innovation en diagnostic génomique des maladies rares, CHU Dijon Bourgogne, Dijon, France
| | - Christel Thauvin-Robinet
- Centre de référence maladies rares-Déficiences Intellectuelles de causes rares, Centre de génétique, Hôpital d'Enfants, UF Innovation en diagnostic génomique des maladies rares, CHU Dijon Bourgogne, Dijon
| | - Athina Ververi
- Clinical Genetic Service, Great Ormond Street Hospital for Children NHS Foundation Trust, Great Ormond Street, London, WC1N 3JH, UK
| | - Catherine DeVile
- Department of Neurology, Great Ormond Street Hospital for Children NHS Foundation Trust, Great Ormond Street, London, WC1N 3JH, UK
| | - Alison Male
- Clinical Genetic Service, Great Ormond Street Hospital for Children NHS Foundation Trust, Great Ormond Street, London, WC1N 3JH, UK
| | - Stephanie Efthymiou
- Department of Neuromuscular Disorders, UCL Institute of Neurology, London WC1N 3BG, UK
| | - Reza Maroofian
- Department of Neuromuscular Disorders, UCL Institute of Neurology, London WC1N 3BG, UK
| | - Henry Houlden
- Department of Neuromuscular Disorders, UCL Institute of Neurology, London WC1N 3BG, UK
| | - Shazia Maqbool
- Development and Behavioural Pediatrics Department, Institute of Child Health and The Children Hospital, Lahore, Pakistan
| | - Fatima Rahman
- Development and Behavioural Pediatrics Department, Institute of Child Health and The Children Hospital, Lahore, Pakistan
| | - Nissan V Baratang
- CHU-Sainte Justine Research Center, University of Montreal, Montreal, QC, Canada, H3T1C5
| | - Justine Rousseau
- CHU-Sainte Justine Research Center, University of Montreal, Montreal, QC, Canada, H3T1C5
| | - Anik St-Denis
- CHU-Sainte Justine Research Center, University of Montreal, Montreal, QC, Canada, H3T1C5
| | - Matthew J Elrick
- Department of Neurology, Johns Hopkins School of Medicine, Baltimore, MD, 21287 USA
| | - Irina Anselm
- Department of Neurology, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Lance H Rodan
- Division of Genetics and Genomics and Department of Neurology, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Marco Tartaglia
- Genetics and Rare Diseases Research Division, Ospedale Pediatrico Bambino Gesù, IRCCS, 00146 Rome, Italy
| | - Joseph Gleeson
- Laboratory for Pediatric Brain Disease, Howard Hughes Medical Institute, University of California, San Diego, La Jolla, CA 92093, USA; Rady Children's Institute for Genomic Medicine, Rady Children's Hospital, San Diego, CA 92123, USA
| | - Taroh Kinoshita
- Research Institute for Microbial Diseases, Osaka University, Osaka 565-0871, Japan
| | - Philippe M Campeau
- CHU-Sainte Justine Research Center, University of Montreal, Montreal, QC, Canada, H3T1C5; Department of Pediatrics, University of Montreal, Montreal, QC, Canada, H3T1C5.
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Grobman WA, Sandoval G, Reddy UM, Tita AT, Silver RM, Mallett G, Hill K, Rice MM, El-Sayed YY, Wapner RJ, Rouse DJ, Saade GR, Thorp JM, Chauhan SP, Iams JD, Chien EK, Casey BM, Gibbs RS, Srinivas SK, Swamy GK, Simhan HN, Macones GA, Peaceman A, Plunkett B, Paycheck K, Dinsmoor M, Harris S, Sheppard J, Biggio J, Harper L, Longo S, Servay C, Varner M, Sowles A, Coleman K, Atkinson D, Stratford J, Dellermann S, Meadows C, Esplin S, Martin C, Peterson K, Stradling S, Willson C, Lyell D, Girsen A, Knapp R, Gyamfi C, Bousleiman S, Perez-Delboy A, Talucci M, Carmona V, Plante L, Tocci C, Leopanto B, Hoffman M, Dill-Grant L, Palomares K, Otarola S, Skupski D, Chan R, Allard D, Gelsomino T, Rousseau J, Beati L, Milano J, Werner E, Salazar A, Costantine M, Chiossi G, Pacheco L, Saad A, Munn M, Jain S, Clark S, Clark K, Boggess K, Timlin S, Eichelberger K, Moore A, Beamon C, Byers H, Ortiz F, Garcia L, Sibai B, Bartholomew A, Buhimschi C, Landon M, Johnson F, Webb L, McKenna D, Fennig K, Snow K, Habli M, McClellan M, Lindeman C, Dalton W, Hackney D, Cozart H, Mayle A, Mercer B, Moseley L, Gerald J, Fay-Randall L, Garcia M, Sias A, Price J, Hale K, Phipers J, Heyborne K, Craig J, Parry S, Sehdev H, Bishop T, Ferrara J, Bickus M, Caritis S, Thom E, Doherty L, de Voest J. Health resource utilization of labor induction versus expectant management. Am J Obstet Gynecol 2020; 222:369.e1-369.e11. [PMID: 31930993 DOI: 10.1016/j.ajog.2020.01.002] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Revised: 11/26/2019] [Accepted: 01/06/2020] [Indexed: 11/25/2022]
Abstract
BACKGROUND Although induction of labor of low-risk nulliparous women at 39 weeks reduces the risk of cesarean delivery compared with expectant management, concern regarding more frequent use of labor induction remains, given that this intervention historically has been thought to incur greater resource utilization. OBJECTIVE The objective of the study was to determine whether planned elective labor induction at 39 weeks among low-risk nulliparous women, compared with expectant management, was associated with differences in health care resource utilization from the time of randomization through 8 weeks postpartum. STUDY DESIGN This is a planned secondary analysis of a multicenter randomized trial in which low-risk nulliparous women were assigned to induction of labor at 39 weeks or expectant management. We assessed resource utilization after randomization in 3 time periods: antepartum, delivery admission, and discharge through 8 weeks postpartum. RESULTS Of 6096 women with data available, those in the induction of labor group (n = 3059) were significantly less likely in the antepartum period after randomization to have at least 1 ambulatory visit for routine prenatal care (32.4% vs 68.4%), unanticipated care (0.5% vs 2.6%), or urgent care (16.2% vs 44.3%), or at least 1 antepartum hospitalization (0.8% vs 2.2%, P < .001 for all). They also had fewer tests (eg, sonograms, blood tests) and treatments (eg, antibiotics, intravenous hydration) prior to delivery. During the delivery admission, women in the induction of labor group spent a longer time in labor and delivery (median, 0.83 vs 0.57 days), but both women (P = .002) and their neonates (P < .001) had shorter postpartum stays. Women and neonates in both groups had similar frequencies of postpartum urgent care and hospital readmissions (P > .05 for all). CONCLUSION Women randomized to induction of labor had longer durations in labor and delivery but significantly fewer antepartum visits, tests, and treatments and shorter maternal and neonatal hospital durations after delivery. These results demonstrate that the health outcome advantages associated with induction of labor are gained without incurring uniformly greater health care resource use.
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Aref-Eshghi E, Kerkhof J, Pedro VP, Barat-Houari M, Ruiz-Pallares N, Andrau JC, Lacombe D, Van-Gils J, Fergelot P, Dubourg C, Cormier-Daire V, Rondeau S, Lecoquierre F, Saugier-Veber P, Nicolas G, Lesca G, Chatron N, Sanlaville D, Vitobello A, Faivre L, Thauvin-Robinet C, Laumonnier F, Raynaud M, Alders M, Mannens M, Henneman P, Hennekam RC, Velasco G, Francastel C, Ulveling D, Ciolfi A, Pizzi S, Tartaglia M, Heide S, Héron D, Mignot C, Keren B, Whalen S, Afenjar A, Bienvenu T, Campeau PM, Rousseau J, Levy MA, Brick L, Kozenko M, Balci TB, Siu VM, Stuart A, Kadour M, Masters J, Takano K, Kleefstra T, de Leeuw N, Field M, Shaw M, Gecz J, Ainsworth PJ, Lin H, Rodenhiser DI, Friez MJ, Tedder M, Lee JA, DuPont BR, Stevenson RE, Skinner SA, Schwartz CE, Genevieve D, Sadikovic B, Sadikovic B. Evaluation of DNA Methylation Episignatures for Diagnosis and Phenotype Correlations in 42 Mendelian Neurodevelopmental Disorders. Am J Hum Genet 2020; 106:356-370. [PMID: 32109418 DOI: 10.1016/j.ajhg.2020.01.019] [Citation(s) in RCA: 142] [Impact Index Per Article: 35.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Accepted: 01/27/2020] [Indexed: 01/24/2023] Open
Abstract
Genetic syndromes frequently present with overlapping clinical features and inconclusive or ambiguous genetic findings which can confound accurate diagnosis and clinical management. An expanding number of genetic syndromes have been shown to have unique genomic DNA methylation patterns (called "episignatures"). Peripheral blood episignatures can be used for diagnostic testing as well as for the interpretation of ambiguous genetic test results. We present here an approach to episignature mapping in 42 genetic syndromes, which has allowed the identification of 34 robust disease-specific episignatures. We examine emerging patterns of overlap, as well as similarities and hierarchical relationships across these episignatures, to highlight their key features as they are related to genetic heterogeneity, dosage effect, unaffected carrier status, and incomplete penetrance. We demonstrate the necessity of multiclass modeling for accurate genetic variant classification and show how disease classification using a single episignature at a time can sometimes lead to classification errors in closely related episignatures. We demonstrate the utility of this tool in resolving ambiguous clinical cases and identification of previously undiagnosed cases through mass screening of a large cohort of subjects with developmental delays and congenital anomalies. This study more than doubles the number of published syndromes with DNA methylation episignatures and, most significantly, opens new avenues for accurate diagnosis and clinical assessment in individuals affected by these disorders.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Bekim Sadikovic
- Molecular Genetics Laboratory, Molecular Diagnostics Division, London Health Sciences Centre, London, ON N6A5W9, Canada; Department of Pathology and Laboratory Medicine, Western University, London, ON N6A3K7, Canada.
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28
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Yan K, Rousseau J, Machol K, Cross LA, Agre KE, Gibson CF, Goverde A, Engleman KL, Verdin H, De Baere E, Potocki L, Zhou D, Cadieux-Dion M, Bellus GA, Wagner MD, Hale RJ, Esber N, Riley AF, Solomon BD, Cho MT, McWalter K, Eyal R, Hainlen MK, Mendelsohn BA, Porter HM, Lanpher BC, Lewis AM, Savatt J, Thiffault I, Callewaert B, Campeau PM, Yang XJ. Deficient histone H3 propionylation by BRPF1-KAT6 complexes in neurodevelopmental disorders and cancer. Sci Adv 2020; 6:eaax0021. [PMID: 32010779 PMCID: PMC6976298 DOI: 10.1126/sciadv.aax0021] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Accepted: 11/20/2019] [Indexed: 05/22/2023]
Abstract
Lysine acetyltransferase 6A (KAT6A) and its paralog KAT6B form stoichiometric complexes with bromodomain- and PHD finger-containing protein 1 (BRPF1) for acetylation of histone H3 at lysine 23 (H3K23). We report that these complexes also catalyze H3K23 propionylation in vitro and in vivo. Immunofluorescence microscopy and ATAC-See revealed the association of this modification with active chromatin. Brpf1 deletion obliterates the acylation in mouse embryos and fibroblasts. Moreover, we identify BRPF1 variants in 12 previously unidentified cases of syndromic intellectual disability and demonstrate that these cases and known BRPF1 variants impair H3K23 propionylation. Cardiac anomalies are present in a subset of the cases. H3K23 acylation is also impaired by cancer-derived somatic BRPF1 mutations. Valproate, vorinostat, propionate and butyrate promote H3K23 acylation. These results reveal the dual functionality of BRPF1-KAT6 complexes, shed light on mechanisms underlying related developmental disorders and various cancers, and suggest mutation-based therapy for medical conditions with deficient histone acylation.
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Affiliation(s)
- Kezhi Yan
- Rosalind and Morris Goodman Cancer Research Center, McGill University, Montreal, Quebec H3A 1A3, Canada
- Department of Medicine, McGill University, Montreal, Quebec H3A 1A3, Canada
| | - Justine Rousseau
- Department of Pediatrics, Sainte-Justine Hospital, University of Montreal, Quebec H3T 1C5, Canada
| | - Keren Machol
- Department of Molecular and Human Genetics, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA
- Texas Children’s Hospital, 6701 Fannin Street, Houston, TX 77030, USA
| | - Laura A. Cross
- Center for Pediatric Genomic Medicine and Department of Clinical Genetics, Children’s Mercy Hospital, Kansas City, MO 64108, USA
| | - Katherine E. Agre
- Department of Clinical Genomics, Mayo Clinic, Rochester, MN 55905, USA
| | - Cynthia Forster Gibson
- Trillium Health Partners, Credit Valley Hospital, Genetics Program, 2200 Eglinton Ave. W, Mississauga, Ontario L5M 2N1, Canada
| | - Anne Goverde
- Department of Clinical Genetics, Erasmus MC, University Medical Center, Rotterdam, Netherlands
| | - Kendra L. Engleman
- Center for Pediatric Genomic Medicine and Department of Clinical Genetics, Children’s Mercy Hospital, Kansas City, MO 64108, USA
| | - Hannah Verdin
- Center for Medical Genetics, Ghent University and Ghent University Hospital, C. Heymanslaan 10, B-9000 Ghent, Belgium
| | - Elfride De Baere
- Center for Medical Genetics, Ghent University and Ghent University Hospital, C. Heymanslaan 10, B-9000 Ghent, Belgium
| | - Lorraine Potocki
- Department of Molecular and Human Genetics, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA
- Texas Children’s Hospital, 6701 Fannin Street, Houston, TX 77030, USA
| | - Dihong Zhou
- Center for Pediatric Genomic Medicine and Department of Clinical Genetics, Children’s Mercy Hospital, Kansas City, MO 64108, USA
| | - Maxime Cadieux-Dion
- Center for Pediatric Genomic Medicine and Department of Clinical Genetics, Children’s Mercy Hospital, Kansas City, MO 64108, USA
| | - Gary A. Bellus
- Clinical Genetics and Genomic Medicine, Geisinger, 100 N. Academy Ave., Danville, PA 17822, USA
| | - Monisa D. Wagner
- Autism and Developmental Medicine Institute, Geisinger, 120 Hamm Dr., Lewisburg, PA 17837, USA
| | - Rebecca J. Hale
- Department of Clinical Genomics, Mayo Clinic, Rochester, MN 55905, USA
| | - Natacha Esber
- KAT6A Foundation, 3 Louise Dr., West Nyack, NY 10994, USA
| | - Alan F. Riley
- Texas Children’s Hospital, 6651 Main Street Legacy Tower, 21st Floor Houston, TX 77030, USA
| | | | - Megan T. Cho
- GeneDx, 207 Perry Parkway, Gaithersburg, MD 20877, USA
| | | | - Roy Eyal
- Kaiser Oakland Medical Center 3600 Broadway, Oakland, CA 94611, USA
| | - Meagan K. Hainlen
- Center for Pediatric Genomic Medicine and Department of Clinical Genetics, Children’s Mercy Hospital, Kansas City, MO 64108, USA
| | | | - Hillary M. Porter
- Department of Genetics and Metabolism, Rare Disease Institute, Children’s National Hospital, 111 Michigan Avenue NW, Washington, DC 20010, USA
| | | | - Andrea M. Lewis
- Department of Molecular and Human Genetics, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA
- Texas Children’s Hospital, 6701 Fannin Street, Houston, TX 77030, USA
| | - Juliann Savatt
- Autism and Developmental Medicine Institute, Geisinger, 120 Hamm Dr., Lewisburg, PA 17837, USA
| | - Isabelle Thiffault
- Center for Pediatric Genomic Medicine and Department of Clinical Genetics, Children’s Mercy Hospital, Kansas City, MO 64108, USA
- Faculty of Medicine, University of Missouri Kansas City, Kansas City, MO 64110, USA
| | - Bert Callewaert
- Center for Medical Genetics, Ghent University and Ghent University Hospital, C. Heymanslaan 10, B-9000 Ghent, Belgium
| | - Philippe M. Campeau
- Department of Pediatrics, Sainte-Justine Hospital, University of Montreal, Quebec H3T 1C5, Canada
- Corresponding author. (P.M.C.); (X.-J.Y.)
| | - Xiang-Jiao Yang
- Rosalind and Morris Goodman Cancer Research Center, McGill University, Montreal, Quebec H3A 1A3, Canada
- Department of Medicine, McGill University, Montreal, Quebec H3A 1A3, Canada
- Department of Biochemistry, McGill University, Montreal, Quebec H3A 1A3, Canada
- McGill University Health Center, Montreal, Quebec H3A 1A3, Canada
- Corresponding author. (P.M.C.); (X.-J.Y.)
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Wang J, Rousseau J, Kim E, Ehresmann S, Cheng YT, Duraine L, Zuo Z, Park YJ, Li-Kroeger D, Bi W, Wong LJ, Rosenfeld J, Gleeson J, Faqeih E, Alkuraya FS, Wierenga KJ, Chen J, Afenjar A, Nava C, Doummar D, Keren B, Juusola J, Grompe M, Bellen HJ, Campeau PM. Loss of Oxidation Resistance 1, OXR1, Is Associated with an Autosomal-Recessive Neurological Disease with Cerebellar Atrophy and Lysosomal Dysfunction. Am J Hum Genet 2019; 105:1237-1253. [PMID: 31785787 PMCID: PMC6904826 DOI: 10.1016/j.ajhg.2019.11.002] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2019] [Accepted: 11/01/2019] [Indexed: 12/28/2022] Open
Abstract
We report an early-onset autosomal-recessive neurological disease with cerebellar atrophy and lysosomal dysfunction. We identified bi-allelic loss-of-function (LoF) variants in Oxidative Resistance 1 (OXR1) in five individuals from three families; these individuals presented with a history of severe global developmental delay, current intellectual disability, language delay, cerebellar atrophy, and seizures. While OXR1 is known to play a role in oxidative stress resistance, its molecular functions are not well established. OXR1 contains three conserved domains: LysM, GRAM, and TLDc. The gene encodes at least six transcripts, including some that only consist of the C-terminal TLDc domain. We utilized Drosophila to assess the phenotypes associated with loss of mustard (mtd), the fly homolog of OXR1. Strong LoF mutants exhibit late pupal lethality or pupal eclosion defects. Interestingly, although mtd encodes 26 transcripts, severe LoF and null mutations can be rescued by a single short human OXR1 cDNA that only contains the TLDc domain. Similar rescue is observed with the TLDc domain of NCOA7, another human homolog of mtd. Loss of mtd in neurons leads to massive cell loss, early death, and an accumulation of aberrant lysosomal structures, similar to what we observe in fibroblasts of affected individuals. Our data indicate that mtd and OXR1 are required for proper lysosomal function; this is consistent with observations that NCOA7 is required for lysosomal acidification.
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Affiliation(s)
- Julia Wang
- Program in Developmental Biology, Medical Scientist Training Program, Baylor College of Medicine, Houston, TX 77030, USA; Jan and Dan Duncan Neurological Research Institute, Baylor College of Medicine, Houston, TX 77030, USA
| | - Justine Rousseau
- Centre Hospitalier Universitaire Saint-Justine Research Center, CHU Sainte-Justine, Montreal, QC H3T 1J4, Canada
| | - Emily Kim
- Biochemistry and Cell Biology, Rice University, Houston, TX 77005, USA
| | - Sophie Ehresmann
- Centre Hospitalier Universitaire Saint-Justine Research Center, CHU Sainte-Justine, Montreal, QC H3T 1J4, Canada
| | - Yi-Ting Cheng
- Program in Developmental Biology, Baylor College of Medicine, Houston, TX 77030, USA
| | - Lita Duraine
- Jan and Dan Duncan Neurological Research Institute, Baylor College of Medicine, Houston, TX 77030, USA; Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
| | - Zhongyuan Zuo
- Jan and Dan Duncan Neurological Research Institute, Baylor College of Medicine, Houston, TX 77030, USA; Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
| | - Ye-Jin Park
- Jan and Dan Duncan Neurological Research Institute, Baylor College of Medicine, Houston, TX 77030, USA; Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
| | - David Li-Kroeger
- Jan and Dan Duncan Neurological Research Institute, Baylor College of Medicine, Houston, TX 77030, USA; Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
| | - Weimin Bi
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
| | - Lee-Jun Wong
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
| | - Jill Rosenfeld
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
| | - Joseph Gleeson
- Rady Institute of Genomic Medicine, University of California San Diego, La Jolla, CA 92093, USA
| | - Eissa Faqeih
- Section of Medical Genetics, Children's Hospital, King Fahad Medical City, Riyadh, 11525, Saudi Arabia
| | - Fowzan S Alkuraya
- Department of Genetics, King Faisal Specialist Hospital and Research Center, Riyadh, 11525, Saudi Arabia
| | - Klaas J Wierenga
- Department of Pediatrics, Oklahoma University Health Sciences Center (OUHSC), Oklahoma City, OK 26901, USA; Department of Clinical Genomics, Mayo Clinic Florida, Jacksonville, FL 32224, USA
| | - Jiani Chen
- Department of Pediatrics, Oklahoma University Health Sciences Center (OUHSC), Oklahoma City, OK 26901, USA; Division of Genomic Diagnostics, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA
| | - Alexandra Afenjar
- Assistance Publique des Hôpitaux de Paris, Unité de Génétique Clinique, Hôpital Armand Trousseau, Groupe Hospitalier Universitaire Paris, 75012, France; Département de Génétique et Embryologie Médicale, CRMR des Malformations et Maladies Congénitales du Cervelet, GRC ConCer-LD, Sorbonne Universités, Hôpital Trousseau, Paris, 75012 France
| | - Caroline Nava
- Assistance Publique des Hôpitaux de Paris, Unité de Génétique Clinique, Hôpital Armand Trousseau, Groupe Hospitalier Universitaire Paris, 75012, France
| | - Diane Doummar
- Assistance Publique des Hôpitaux de Paris, Service de Neuropédiatrie, Hôpital Armand Trousseau, Groupe Hospitalier Universitaire Paris, 75012 France
| | - Boris Keren
- Assistance Publique des Hôpitaux de Paris, Unité de Génétique Clinique, Hôpital Armand Trousseau, Groupe Hospitalier Universitaire Paris, 75012, France
| | | | - Markus Grompe
- Department of Pediatrics, Oregon Health and Science University, Portland, Oregon 97201, USA; Department of Molecular and Medical Genetics, Oregon Health and Science University, Portland, Oregon 97201, USA
| | - Hugo J Bellen
- Jan and Dan Duncan Neurological Research Institute, Baylor College of Medicine, Houston, TX 77030, USA; Program in Developmental Biology, Baylor College of Medicine, Houston, TX 77030, USA; Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA; Howard Hughes Medical Institute and Department of Neuroscience, Baylor College of Medicine, Houston, TX 77030, USA.
| | - Philippe M Campeau
- Centre Hospitalier Universitaire Saint-Justine Research Center, CHU Sainte-Justine, Montreal, QC H3T 1J4, Canada.
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30
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van Karnebeek CDM, Ramos RJ, Wen XY, Tarailo-Graovac M, Gleeson JG, Skrypnyk C, Brand-Arzamendi K, Karbassi F, Issa MY, van der Lee R, Drögemöller BI, Koster J, Rousseau J, Campeau PM, Wang Y, Cao F, Li M, Ruiter J, Ciapaite J, Kluijtmans LAJ, Willemsen MAAP, Jans JJ, Ross CJ, Wintjes LT, Rodenburg RJ, Huigen MCDG, Jia Z, Waterham HR, Wasserman WW, Wanders RJA, Verhoeven-Duif NM, Zaki MS, Wevers RA. Bi-allelic GOT2 Mutations Cause a Treatable Malate-Aspartate Shuttle-Related Encephalopathy. Am J Hum Genet 2019; 105:534-548. [PMID: 31422819 DOI: 10.1016/j.ajhg.2019.07.015] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Accepted: 07/22/2019] [Indexed: 11/30/2022] Open
Abstract
Early-infantile encephalopathies with epilepsy are devastating conditions mandating an accurate diagnosis to guide proper management. Whole-exome sequencing was used to investigate the disease etiology in four children from independent families with intellectual disability and epilepsy, revealing bi-allelic GOT2 mutations. In-depth metabolic studies in individual 1 showed low plasma serine, hypercitrullinemia, hyperlactatemia, and hyperammonemia. The epilepsy was serine and pyridoxine responsive. Functional consequences of observed mutations were tested by measuring enzyme activity and by cell and animal models. Zebrafish and mouse models were used to validate brain developmental and functional defects and to test therapeutic strategies. GOT2 encodes the mitochondrial glutamate oxaloacetate transaminase. GOT2 enzyme activity was deficient in fibroblasts with bi-allelic mutations. GOT2, a member of the malate-aspartate shuttle, plays an essential role in the intracellular NAD(H) redox balance. De novo serine biosynthesis was impaired in fibroblasts with GOT2 mutations and GOT2-knockout HEK293 cells. Correcting the highly oxidized cytosolic NAD-redox state by pyruvate supplementation restored serine biosynthesis in GOT2-deficient cells. Knockdown of got2a in zebrafish resulted in a brain developmental defect associated with seizure-like electroencephalography spikes, which could be rescued by supplying pyridoxine in embryo water. Both pyridoxine and serine synergistically rescued embryonic developmental defects in zebrafish got2a morphants. The two treated individuals reacted favorably to their treatment. Our data provide a mechanistic basis for the biochemical abnormalities in GOT2 deficiency that may also hold for other MAS defects.
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Affiliation(s)
- Clara D M van Karnebeek
- Departments of Pediatrics & Clinical Genetics, Emma Children's Hospital, Amsterdam University Medical Centres, Amsterdam Gastro-enterology and Metabolism, University of Amsterdam, 1105 AZ Amsterdam, the Netherlands; Department of Pediatrics / Medical Genetics, BC Children's Hospital Research Institute, Centre for Molecular Medicine and Therapeutics, University of British Columbia, Vancouver, BC V5Z 4H4, Canada; On behalf of "United for Metabolic Diseases," 1105AZ Amsterdam, the Netherlands; Amalia Children's Hospital, Department of Pediatrics, Radboud University Medical Centre, 6525 GA Nijmegen, the Netherlands.
| | - Rúben J Ramos
- On behalf of "United for Metabolic Diseases," 1105AZ Amsterdam, the Netherlands; Department of Genetics, University Medical Center Utrecht, 3584 EA Utrecht, the Netherlands
| | - Xiao-Yan Wen
- Zebrafish Centre for Advanced Drug Discovery, Keenan Research Centre for Biomedical Science, Li Ka Sheng Knowledge Institute, St. Michael's Hospital, Toronto, ON M5B 1T8, Canada; Department of Medicine, Physiology and LMP & Institute of Medical Science, University of Toronto, Toronto, ON M5G 2C4, Canada
| | - Maja Tarailo-Graovac
- Departments of Biochemistry, Molecular Biology and Medical Genetics, Cumming School of Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada; Alberta Children's Hospital Research Institute, University of Calgary, Calgary, AB T2N 4N1, Canada
| | - Joseph G Gleeson
- Department Neurosciences and Pediatric, Howard Hughes Medical Institute, University of California; Rady Children's Institute for Genomic Medicine, San Diego, CA 92093, USA
| | - Cristina Skrypnyk
- Department of Molecular Medicine and Al Jawhara Center for Molecular Medicine, Genetics and Inherited Diseases, College of Medicine and Medical Sciences, Arabian Gulf University, Postal Code 328, Bahrain
| | - Koroboshka Brand-Arzamendi
- Zebrafish Centre for Advanced Drug Discovery, Keenan Research Centre for Biomedical Science, Li Ka Sheng Knowledge Institute, St. Michael's Hospital, Toronto, ON M5B 1T8, Canada
| | - Farhad Karbassi
- Zebrafish Centre for Advanced Drug Discovery, Keenan Research Centre for Biomedical Science, Li Ka Sheng Knowledge Institute, St. Michael's Hospital, Toronto, ON M5B 1T8, Canada
| | - Mahmoud Y Issa
- Clinical Genetics Department, Human Genetics and Genome Research Division, National Research Centre, Cairo 12311, Egypt
| | - Robin van der Lee
- Centre for Molecular Medicine and Therapeutics, Department of Medical Genetics, BC Children's Hospital Research Institute, University of British Columbia, Vancouver, BC V5Z 4H4, Canada
| | - Britt I Drögemöller
- Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, BC V6T 1Z3, Canada; BC Children's Hospital Research Institute, Vancouver, BC V5Z 4H4, Canada
| | - Janet Koster
- Laboratory Genetic Metabolic Diseases, Department of Clinical Chemistry, Amsterdam University Medical Centres, University of Amsterdam, Amsterdam Gastro-enterology and Metabolism, 1105 AZ Amsterdam, the Netherlands
| | - Justine Rousseau
- CHU Sainte-Justine Research Center, Montreal, QC H3T 1C5, Canada
| | | | - Youdong Wang
- Zebrafish Centre for Advanced Drug Discovery, Keenan Research Centre for Biomedical Science, Li Ka Sheng Knowledge Institute, St. Michael's Hospital, Toronto, ON M5B 1T8, Canada
| | - Feng Cao
- Department of Neuroscience & Mental Health, The Hospital for Sick Children & Department of Physiology, University of Toronto, Toronto, ON M5G 1X8, Canada
| | - Meng Li
- Zebrafish Centre for Advanced Drug Discovery, Keenan Research Centre for Biomedical Science, Li Ka Sheng Knowledge Institute, St. Michael's Hospital, Toronto, ON M5B 1T8, Canada
| | - Jos Ruiter
- Laboratory Genetic Metabolic Diseases, Department of Clinical Chemistry, Amsterdam University Medical Centres, University of Amsterdam, Amsterdam Gastro-enterology and Metabolism, 1105 AZ Amsterdam, the Netherlands
| | - Jolita Ciapaite
- On behalf of "United for Metabolic Diseases," 1105AZ Amsterdam, the Netherlands; Department of Genetics, University Medical Center Utrecht, 3584 EA Utrecht, the Netherlands
| | - Leo A J Kluijtmans
- On behalf of "United for Metabolic Diseases," 1105AZ Amsterdam, the Netherlands; Department of Laboratory Medicine, Translational Metabolic Laboratory, Radboud University Medical Centre, 6525 GA Nijmegen, the Netherlands
| | - Michel A A P Willemsen
- On behalf of "United for Metabolic Diseases," 1105AZ Amsterdam, the Netherlands; Amalia Children's Hospital, Department of Pediatrics, Radboud University Medical Centre, 6525 GA Nijmegen, the Netherlands
| | - Judith J Jans
- On behalf of "United for Metabolic Diseases," 1105AZ Amsterdam, the Netherlands; Department of Genetics, University Medical Center Utrecht, 3584 EA Utrecht, the Netherlands
| | - Colin J Ross
- Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, BC V6T 1Z3, Canada
| | - Liesbeth T Wintjes
- On behalf of "United for Metabolic Diseases," 1105AZ Amsterdam, the Netherlands; Department of Laboratory Medicine, Translational Metabolic Laboratory, Radboud University Medical Centre, 6525 GA Nijmegen, the Netherlands; Radboud Center for Mitochondrial Medicine, Department of Pediatrics, Radboud University Medical Centre, 6525 GA Nijmegen, the Netherlands
| | - Richard J Rodenburg
- On behalf of "United for Metabolic Diseases," 1105AZ Amsterdam, the Netherlands; Department of Laboratory Medicine, Translational Metabolic Laboratory, Radboud University Medical Centre, 6525 GA Nijmegen, the Netherlands; Amalia Children's Hospital, Department of Pediatrics, Radboud University Medical Centre, 6525 GA Nijmegen, the Netherlands; Radboud Center for Mitochondrial Medicine, Department of Pediatrics, Radboud University Medical Centre, 6525 GA Nijmegen, the Netherlands
| | - Marleen C D G Huigen
- On behalf of "United for Metabolic Diseases," 1105AZ Amsterdam, the Netherlands; Department of Laboratory Medicine, Translational Metabolic Laboratory, Radboud University Medical Centre, 6525 GA Nijmegen, the Netherlands
| | - Zhengping Jia
- Department of Neuroscience & Mental Health, The Hospital for Sick Children & Department of Physiology, University of Toronto, Toronto, ON M5G 1X8, Canada
| | - Hans R Waterham
- On behalf of "United for Metabolic Diseases," 1105AZ Amsterdam, the Netherlands; Laboratory Genetic Metabolic Diseases, Department of Clinical Chemistry, Amsterdam University Medical Centres, University of Amsterdam, Amsterdam Gastro-enterology and Metabolism, 1105 AZ Amsterdam, the Netherlands
| | - Wyeth W Wasserman
- Centre for Molecular Medicine and Therapeutics, Department of Medical Genetics, BC Children's Hospital Research Institute, University of British Columbia, Vancouver, BC V5Z 4H4, Canada
| | - Ronald J A Wanders
- On behalf of "United for Metabolic Diseases," 1105AZ Amsterdam, the Netherlands; Laboratory Genetic Metabolic Diseases, Department of Clinical Chemistry, Amsterdam University Medical Centres, University of Amsterdam, Amsterdam Gastro-enterology and Metabolism, 1105 AZ Amsterdam, the Netherlands
| | - Nanda M Verhoeven-Duif
- On behalf of "United for Metabolic Diseases," 1105AZ Amsterdam, the Netherlands; Department of Genetics, University Medical Center Utrecht, 3584 EA Utrecht, the Netherlands
| | - Maha S Zaki
- Clinical Genetics Department, Human Genetics and Genome Research Division, National Research Centre, Cairo 12311, Egypt
| | - Ron A Wevers
- On behalf of "United for Metabolic Diseases," 1105AZ Amsterdam, the Netherlands; Department of Laboratory Medicine, Translational Metabolic Laboratory, Radboud University Medical Centre, 6525 GA Nijmegen, the Netherlands.
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31
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Murakami Y, Nguyen TTM, Baratang N, Raju PK, Knaus A, Ellard S, Jones G, Lace B, Rousseau J, Ajeawung NF, Kamei A, Minase G, Akasaka M, Araya N, Koshimizu E, van den Ende J, Erger F, Altmüller J, Krumina Z, Strautmanis J, Inashkina I, Stavusis J, El-Gharbawy A, Sebastian J, Puri RD, Kulshrestha S, Verma IC, Maier EM, Haack TB, Israni A, Baptista J, Gunning A, Rosenfeld JA, Liu P, Joosten M, Rocha ME, Hashem MO, Aldhalaan HM, Alkuraya FS, Miyatake S, Matsumoto N, Krawitz PM, Rossignol E, Kinoshita T, Campeau PM. Mutations in PIGB Cause an Inherited GPI Biosynthesis Defect with an Axonal Neuropathy and Metabolic Abnormality in Severe Cases. Am J Hum Genet 2019; 105:384-394. [PMID: 31256876 PMCID: PMC6698938 DOI: 10.1016/j.ajhg.2019.05.019] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Accepted: 05/28/2019] [Indexed: 11/15/2022] Open
Abstract
Proteins anchored to the cell surface via glycosylphosphatidylinositol (GPI) play various key roles in the human body, particularly in development and neurogenesis. As such, many developmental disorders are caused by mutations in genes involved in the GPI biosynthesis and remodeling pathway. We describe ten unrelated families with bi-allelic mutations in PIGB, a gene that encodes phosphatidylinositol glycan class B, which transfers the third mannose to the GPI. Ten different PIGB variants were found in these individuals. Flow cytometric analysis of blood cells and fibroblasts from the affected individuals showed decreased cell surface presence of GPI-anchored proteins. Most of the affected individuals have global developmental and/or intellectual delay, all had seizures, two had polymicrogyria, and four had a peripheral neuropathy. Eight children passed away before four years old. Two of them had a clinical diagnosis of DOORS syndrome (deafness, onychodystrophy, osteodystrophy, mental retardation, and seizures), a condition that includes sensorineural deafness, shortened terminal phalanges with small finger and toenails, intellectual disability, and seizures; this condition overlaps with the severe phenotypes associated with inherited GPI deficiency. Most individuals tested showed elevated alkaline phosphatase, which is a characteristic of the inherited GPI deficiency but not DOORS syndrome. It is notable that two severely affected individuals showed 2-oxoglutaric aciduria, which can be seen in DOORS syndrome, suggesting that severe cases of inherited GPI deficiency and DOORS syndrome might share some molecular pathway disruptions.
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Affiliation(s)
- Yoshiko Murakami
- Yabumoto Department of Intractable Disease Research, Research Institute for Microbial Diseases, Osaka University, Suita, Osaka 565-0871, Japan
| | - Thi Tuyet Mai Nguyen
- Centre Hospitalier Universitaire Sainte-Justine Research Center, Montreal, QC H3T 1C5, Canada
| | - Nissan Baratang
- Centre Hospitalier Universitaire Sainte-Justine Research Center, Montreal, QC H3T 1C5, Canada
| | - Praveen K Raju
- Centre Hospitalier Universitaire Sainte-Justine Research Center, Montreal, QC H3T 1C5, Canada
| | - Alexej Knaus
- Insitute for Genomic Statistics and Bioinformatics, University Hospital Bonn, 53127 Bonn, Germany
| | - Sian Ellard
- Royal Devon and Exeter NHS Foundation Trust, Exeter EX2 5DW, UK
| | - Gabriela Jones
- Clinical Genetics Department, Nottingham University Hospitals NHS Trust, Nottingham NGS 1PB, UK
| | - Baiba Lace
- Centre Hospitalier Universitaire de Québec, 2705 Boulevard Laurier, Ville de Québec, QC G1V 4G2, Canada
| | - Justine Rousseau
- Centre Hospitalier Universitaire Sainte-Justine Research Center, Montreal, QC H3T 1C5, Canada
| | - Norbert Fonya Ajeawung
- Centre Hospitalier Universitaire Sainte-Justine Research Center, Montreal, QC H3T 1C5, Canada
| | - Atsushi Kamei
- Department of Pediatrics, School of Medicine, Iwate Medical University, Morioka, Iwate 020-8505, Japan
| | - Gaku Minase
- Department of Human Genetics, Yokohama City University Graduate School of Medicine, Yokohama, Kanagawa 236-0004, Japan
| | - Manami Akasaka
- Department of Pediatrics, School of Medicine, Iwate Medical University, Morioka, Iwate 020-8505, Japan
| | - Nami Araya
- Department of Pediatrics, School of Medicine, Iwate Medical University, Morioka, Iwate 020-8505, Japan
| | - Eriko Koshimizu
- Department of Human Genetics, Yokohama City University Graduate School of Medicine, Yokohama, Kanagawa 236-0004, Japan
| | | | - Florian Erger
- Institute of Human Genetics, University Hospital of Cologne, and Center for Molecular Medicine, University of Cologne, 50931 Cologne, Germany
| | - Janine Altmüller
- Cologne Center for Genomics, University of Cologne, 50931 Cologne, Germany
| | - Zita Krumina
- Deparment of Biology and Microbiology, Riga Stradinš University, Riga, LV-1029, Latvia
| | | | - Inna Inashkina
- Latvian Biomedical Research and Study Centre, Ratsupites Str. 1 k-1, Riga LV-1067, Latvia
| | - Janis Stavusis
- Latvian Biomedical Research and Study Centre, Ratsupites Str. 1 k-1, Riga LV-1067, Latvia
| | - Areeg El-Gharbawy
- Department of Medical Genetics, Children's Hospital of Pittsburgh of University Pittsburgh Medical Center, Pittsburgh, PA 15224, USA
| | - Jessica Sebastian
- Department of Medical Genetics, Children's Hospital of Pittsburgh of University Pittsburgh Medical Center, Pittsburgh, PA 15224, USA
| | - Ratna Dua Puri
- Institute of Medical Genetics and Genomics, Sir Ganga Ram Hospital, New Delhi 110060, India
| | - Samarth Kulshrestha
- Institute of Medical Genetics and Genomics, Sir Ganga Ram Hospital, New Delhi 110060, India
| | - Ishwar C Verma
- Institute of Medical Genetics and Genomics, Sir Ganga Ram Hospital, New Delhi 110060, India
| | - Esther M Maier
- Department of Inborn Errors of Metabolism, Dr. von Hauner Children's Hospital, 80337 Munich, Germany
| | - Tobias B Haack
- Institute of Medical Genetics and Applied Genomics, University of Tübingen, 72074 Tübingen, Germany; Institute of Human Genetics, Technische Universität München, 81675 Munich, Germany
| | - Anil Israni
- Department of Paediatric Neurology, Leicester Royal Infirmary, Leicester LE1 5WW, UK
| | - Julia Baptista
- Royal Devon and Exeter NHS Foundation Trust, Exeter EX2 5DW, UK
| | - Adam Gunning
- Royal Devon and Exeter NHS Foundation Trust, Exeter EX2 5DW, UK
| | - Jill A Rosenfeld
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
| | - Pengfei Liu
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
| | - Marieke Joosten
- Dept of Clinical Genetics, Erasmus MC, PO Box 2040, 3000 CA Rotterdam, the Netherlands
| | | | - Mais O Hashem
- Department of Genetics, King Faisal Specialist Hospital and Research Center, Riyadh 11211, Saudi Arabia
| | - Hesham M Aldhalaan
- Department of Genetics, King Faisal Specialist Hospital and Research Center, Riyadh 11211, Saudi Arabia
| | - Fowzan S Alkuraya
- Department of Genetics, King Faisal Specialist Hospital and Research Center, Riyadh 11211, Saudi Arabia
| | - Satoko Miyatake
- Department of Human Genetics, Yokohama City University Graduate School of Medicine, Yokohama, Kanagawa 236-0004, Japan
| | - Naomichi Matsumoto
- Department of Human Genetics, Yokohama City University Graduate School of Medicine, Yokohama, Kanagawa 236-0004, Japan
| | - Peter M Krawitz
- Insitute for Genomic Statistics and Bioinformatics, University Hospital Bonn, 53127 Bonn, Germany
| | - Elsa Rossignol
- Centre Hospitalier Universitaire Sainte-Justine Research Center, Montreal, QC H3T 1C5, Canada; Department of Genetics, King Faisal Specialist Hospital and Research Center, Riyadh 11211, Saudi Arabia; Department of Neurosciences, Centre Hospitalier Universitaire Sainte-Justine and University of Montreal, Montreal, QC H3T 1C5, Canada
| | - Taroh Kinoshita
- Yabumoto Department of Intractable Disease Research, Research Institute for Microbial Diseases, Osaka University, Suita, Osaka 565-0871, Japan.
| | - Philippe M Campeau
- Centre Hospitalier Universitaire Sainte-Justine Research Center, Montreal, QC H3T 1C5, Canada; Department of Pediatrics, Centre Hospitalier Universitaire Sainte-Justine and University of Montreal, Montreal, QC H3T 1C5, Canada.
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32
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Snijders Blok L, Rousseau J, Twist J, Ehresmann S, Takaku M, Venselaar H, Rodan LH, Nowak CB, Douglas J, Swoboda KJ, Steeves MA, Sahai I, Stumpel CTRM, Stegmann APA, Wheeler P, Willing M, Fiala E, Kochhar A, Gibson WT, Cohen ASA, Agbahovbe R, Innes AM, Au PYB, Rankin J, Anderson IJ, Skinner SA, Louie RJ, Warren HE, Afenjar A, Keren B, Nava C, Buratti J, Isapof A, Rodriguez D, Lewandowski R, Propst J, van Essen T, Choi M, Lee S, Chae JH, Price S, Schnur RE, Douglas G, Wentzensen IM, Zweier C, Reis A, Bialer MG, Moore C, Koopmans M, Brilstra EH, Monroe GR, van Gassen KLI, van Binsbergen E, Newbury-Ecob R, Bownass L, Bader I, Mayr JA, Wortmann SB, Jakielski KJ, Strand EA, Kloth K, Bierhals T, Roberts JD, Petrovich RM, Machida S, Kurumizaka H, Lelieveld S, Pfundt R, Jansen S, Deriziotis P, Faivre L, Thevenon J, Assoum M, Shriberg L, Kleefstra T, Brunner HG, Wade PA, Fisher SE, Campeau PM. Author Correction: CHD3 helicase domain mutations cause a neurodevelopmental syndrome with macrocephaly and impaired speech and language. Nat Commun 2019; 10:2079. [PMID: 31048695 PMCID: PMC6497626 DOI: 10.1038/s41467-019-10161-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Affiliation(s)
- Lot Snijders Blok
- Department of Human Genetics, Radboud University Medical Center, Nijmegen, 6500HB, The Netherlands.,Language and Genetics Department, Max Planck Institute for Psycholinguistics, Nijmegen, 6500AH, The Netherlands.,Donders Institute for Brain, Cognition and Behaviour, Radboud University, Nijmegen, 6500HE, The Netherlands
| | - Justine Rousseau
- CHU Sainte-Justine Research Center, Montreal, QC H3T 1C5, Canada
| | - Joanna Twist
- National Institute of Environmental Health Sciences, Research Triangle Park, NC 27709, USA
| | - Sophie Ehresmann
- CHU Sainte-Justine Research Center, Montreal, QC H3T 1C5, Canada
| | - Motoki Takaku
- National Institute of Environmental Health Sciences, Research Triangle Park, NC 27709, USA
| | - Hanka Venselaar
- Centre for Molecular and Biomolecular Informatics, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, 6500HB, The Netherlands
| | - Lance H Rodan
- Division of Genetics and Genomics, Boston Children's Hospital, Boston, MA 02115, USA
| | - Catherine B Nowak
- Division of Genetics and Genomics, Boston Children's Hospital, Boston, MA 02115, USA
| | - Jessica Douglas
- Division of Genetics and Genomics, Boston Children's Hospital, Boston, MA 02115, USA
| | - Kathryn J Swoboda
- Department of Neurology, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
| | - Marcie A Steeves
- Department of Medical Genetics, Massachusetts General Hospital, Boston, MA 02114, USA
| | - Inderneel Sahai
- Department of Medical Genetics, Massachusetts General Hospital, Boston, MA 02114, USA
| | - Connie T R M Stumpel
- Department of Clinical Genetics and GROW-School for Oncology and Developmental Biology, Maastricht University Medical Center, Maastricht, 6202AZ, The Netherlands
| | - Alexander P A Stegmann
- Department of Clinical Genetics and GROW-School for Oncology and Developmental Biology, Maastricht University Medical Center, Maastricht, 6202AZ, The Netherlands
| | | | - Marcia Willing
- Division of Genetics and Genomic Medicine, Department of Pediatrics, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Elise Fiala
- Division of Genetics and Genomic Medicine, Department of Pediatrics, Washington University School of Medicine, St. Louis, MO 63110, USA
| | | | - William T Gibson
- British Columbia Children's Hospital Research Institute, Vancouver, BC V5Z 4H4, Canada.,Department of Medical Genetics, University of British Columbia, Vancouver, BC V6H 3N1, Canada
| | - Ana S A Cohen
- British Columbia Children's Hospital Research Institute, Vancouver, BC V5Z 4H4, Canada.,Department of Medical Genetics, University of British Columbia, Vancouver, BC V6H 3N1, Canada
| | - Ruky Agbahovbe
- British Columbia Children's Hospital Research Institute, Vancouver, BC V5Z 4H4, Canada.,Department of Medical Genetics, University of British Columbia, Vancouver, BC V6H 3N1, Canada
| | - A Micheil Innes
- Department of Medical Genetics and Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada
| | - P Y Billie Au
- Department of Medical Genetics and Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada
| | - Julia Rankin
- Department of Clinical Genetics, Royal Devon and Exeter NHS Foundation Trust (Heavitree), Exeter, EX2 5DW, UK
| | - Ilse J Anderson
- Division of Genetics, Department of Medicine, University of Tennessee Medical Center, Knoxville, TN 37920, USA
| | | | | | | | - Alexandra Afenjar
- GRC ConCer-LD, Sorbonne Universités, UPMC Univ Paris ; Department of Medical Genetics and Centre de Référence Malformations et maladies congénitales du cervelet et déficiences intellectuelles de causes rares, Armand Trousseau Hospital, GHUEP, AP-HP, Paris, 75012, France
| | - Boris Keren
- AP-HP, Hôpital de la Pitié-Salpêtrière, Département de Génétique, Paris, 75013, France.,Groupe de Recherche Clinique (GRC) 'déficience intellectuelle et autisme' UPMC, Paris, 75005, France
| | - Caroline Nava
- AP-HP, Hôpital de la Pitié-Salpêtrière, Département de Génétique, Paris, 75013, France.,Groupe de Recherche Clinique (GRC) 'déficience intellectuelle et autisme' UPMC, Paris, 75005, France.,INSERM, U 1127, CNRS UMR 7225, Institut du Cerveau et de la Moelle épinière, ICM, Sorbonne Universités, UPMC Univ Paris 06 UMR S 1127, 75013, Paris, France
| | - Julien Buratti
- AP-HP, Hôpital de la Pitié-Salpêtrière, Département de Génétique, Paris, 75013, France
| | - Arnaud Isapof
- GRC ConCer-LD, Sorbonne Universités, UPMC Univ Paris 06; Department Child Neurology and Reference Center for Neuromuscular Diseases "Nord/Est/Ile-de-France", FILNEMUS, Armand Trousseau Hospital, GHUEP, AP-HP, Paris, 75012, France
| | - Diana Rodriguez
- GRC ConCer-LD, Sorbonne Universités, UPMC Univ Paris 06; Department of Child Neurology and National Reference Center for Neurogenetic Disorders, Armand Trousseau Hospital, GHUEP, AP-HP, INSERM U1141, 75012, Paris, France
| | - Raymond Lewandowski
- Clinical Genetics Division, Virginia Commonwealth University Health System, Richmond, VA 23298, USA
| | - Jennifer Propst
- Clinical Genetics Division, Virginia Commonwealth University Health System, Richmond, VA 23298, USA
| | - Ton van Essen
- Clinical Genetics Department, University Medical Center Groningen, Groningen, 9700RB, The Netherlands
| | - Murim Choi
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, 08826, Republic of Korea
| | - Sangmoon Lee
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, 08826, Republic of Korea
| | - Jong H Chae
- Department of Pediatrics, Seoul National University College of Medicine, Seoul National University Children's Hospital, Seoul, 08826, Republic of Korea
| | - Susan Price
- Oxford University Hospitals NHS Foundation Trust, Oxford, OX3 7HE, UK
| | | | | | | | - Christiane Zweier
- Institute of Human Genetics, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, 91054, Germany
| | - André Reis
- Institute of Human Genetics, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, 91054, Germany
| | - Martin G Bialer
- Northwell Health, Division of Medical Genetics and Genomics, Great Neck, NY 11021, USA
| | - Christine Moore
- Northwell Health, Division of Medical Genetics and Genomics, Great Neck, NY 11021, USA
| | - Marije Koopmans
- Department of Genetics, University Medical Center Utrecht, Utrecht University, Utrecht, 3508AB, The Netherlands
| | - Eva H Brilstra
- Department of Genetics, University Medical Center Utrecht, Utrecht University, Utrecht, 3508AB, The Netherlands
| | - Glen R Monroe
- Department of Genetics, University Medical Center Utrecht, Utrecht University, Utrecht, 3508AB, The Netherlands
| | - Koen L I van Gassen
- Department of Genetics, University Medical Center Utrecht, Utrecht University, Utrecht, 3508AB, The Netherlands
| | - Ellen van Binsbergen
- Department of Genetics, University Medical Center Utrecht, Utrecht University, Utrecht, 3508AB, The Netherlands
| | - Ruth Newbury-Ecob
- University Hospitals Bristol, Department of Clinical Genetics, St Michael's Hospital, Bristol, BS2 8EG, UK
| | - Lucy Bownass
- University Hospitals Bristol, Department of Clinical Genetics, St Michael's Hospital, Bristol, BS2 8EG, UK
| | - Ingrid Bader
- Department of Clinical Genetics, University Children's Hospital, Paracelsus Medical University, Salzburg, A-5020, Austria
| | - Johannes A Mayr
- Department of Pediatrics, Salzburger Landeskliniken and Paracelsus Medical University, Salzburg, A-5020, Austria
| | - Saskia B Wortmann
- Department of Pediatrics, Salzburger Landeskliniken and Paracelsus Medical University, Salzburg, A-5020, Austria.,Institute of Human Genetics, Technische Universität München, Munich, 81675, Germany.,Institute of Human Genetics, Helmholtz Zentrum München, Neuherberg, 85764, Germany
| | - Kathy J Jakielski
- Communication Sciences and Disorders, Augustana College, Rock Island, IL 61201, USA
| | - Edythe A Strand
- Department of Neurology, Mayo Clinic, Rochester, MN 55905, USA
| | - Katja Kloth
- Institute of Human Genetics, University Medical Center Hamburg-Eppendorf, Hamburg, 20246, Germany
| | - Tatjana Bierhals
- Institute of Human Genetics, University Medical Center Hamburg-Eppendorf, Hamburg, 20246, Germany
| | | | - John D Roberts
- National Institute of Environmental Health Sciences, Research Triangle Park, NC 27709, USA
| | - Robert M Petrovich
- National Institute of Environmental Health Sciences, Research Triangle Park, NC 27709, USA
| | | | | | - Stefan Lelieveld
- Department of Human Genetics, Radboud University Medical Center, Nijmegen, 6500HB, The Netherlands
| | - Rolph Pfundt
- Department of Human Genetics, Radboud University Medical Center, Nijmegen, 6500HB, The Netherlands
| | - Sandra Jansen
- Department of Human Genetics, Radboud University Medical Center, Nijmegen, 6500HB, The Netherlands.,Donders Institute for Brain, Cognition and Behaviour, Radboud University, Nijmegen, 6500HE, The Netherlands
| | - Pelagia Deriziotis
- Language and Genetics Department, Max Planck Institute for Psycholinguistics, Nijmegen, 6500AH, The Netherlands
| | - Laurence Faivre
- Equipe Génétique des Anomalies du Développement, Université de Bourgogne-Franche Comté, Dijon, 21070, France.,Centre de Génétique et Centre de Référence Anomalies du Développement et Syndromes Malformatifs, FHU TRANSLAD, Hôpital d'Enfants, CHU Dijon et Université de Bourgogne, Dijon, 21079, France
| | - Julien Thevenon
- Equipe Génétique des Anomalies du Développement, Université de Bourgogne-Franche Comté, Dijon, 21070, France.,Centre de Génétique et Centre de Référence Anomalies du Développement et Syndromes Malformatifs, FHU TRANSLAD, Hôpital d'Enfants, CHU Dijon et Université de Bourgogne, Dijon, 21079, France
| | - Mirna Assoum
- Equipe Génétique des Anomalies du Développement, Université de Bourgogne-Franche Comté, Dijon, 21070, France.,Centre de Génétique et Centre de Référence Anomalies du Développement et Syndromes Malformatifs, FHU TRANSLAD, Hôpital d'Enfants, CHU Dijon et Université de Bourgogne, Dijon, 21079, France
| | | | - Tjitske Kleefstra
- Department of Human Genetics, Radboud University Medical Center, Nijmegen, 6500HB, The Netherlands.,Donders Institute for Brain, Cognition and Behaviour, Radboud University, Nijmegen, 6500HE, The Netherlands
| | - Han G Brunner
- Department of Human Genetics, Radboud University Medical Center, Nijmegen, 6500HB, The Netherlands.,Donders Institute for Brain, Cognition and Behaviour, Radboud University, Nijmegen, 6500HE, The Netherlands.,Department of Clinical Genetics and GROW-School for Oncology and Developmental Biology, Maastricht University Medical Center, Maastricht, 6202AZ, The Netherlands
| | - Paul A Wade
- National Institute of Environmental Health Sciences, Research Triangle Park, NC 27709, USA
| | - Simon E Fisher
- Language and Genetics Department, Max Planck Institute for Psycholinguistics, Nijmegen, 6500AH, The Netherlands. .,Donders Institute for Brain, Cognition and Behaviour, Radboud University, Nijmegen, 6500HE, The Netherlands.
| | - Philippe M Campeau
- CHU Sainte-Justine Research Center, Montreal, QC H3T 1C5, Canada. .,Sainte-Justine Hospital, University of Montreal, Montreal, QC H3T 1C5, Canada.
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33
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Bell S, Rousseau J, Peng H, Aouabed Z, Priam P, Theroux JF, Jefri M, Tanti A, Wu H, Kolobova I, Silviera H, Manzano-Vargas K, Ehresmann S, Hamdan FF, Hettige N, Zhang X, Antonyan L, Nassif C, Ghaloul-Gonzalez L, Sebastian J, Vockley J, Begtrup AG, Wentzensen IM, Crunk A, Nicholls RD, Herman KC, Deignan JL, Al-Hertani W, Efthymiou S, Salpietro V, Miyake N, Makita Y, Matsumoto N, Østern R, Houge G, Hafström M, Fassi E, Houlden H, Klein Wassink-Ruiter JS, Nelson D, Goldstein A, Dabir T, van Gils J, Bourgeron T, Delorme R, Cooper GM, Martinez JE, Finnila CR, Carmant L, Lortie A, Oegema R, van Gassen K, Mehta SG, Huhle D, Abou Jamra R, Martin S, Brunner HG, Lindhout D, Au M, Graham JM, Coubes C, Turecki G, Gravel S, Mechawar N, Rossignol E, Michaud JL, Lessard J, Ernst C, Campeau PM. Mutations in ACTL6B Cause Neurodevelopmental Deficits and Epilepsy and Lead to Loss of Dendrites in Human Neurons. Am J Hum Genet 2019; 104:815-834. [PMID: 31031012 PMCID: PMC6507050 DOI: 10.1016/j.ajhg.2019.03.022] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Accepted: 03/01/2019] [Indexed: 02/04/2023] Open
Abstract
We identified individuals with variations in ACTL6B, a component of the chromatin remodeling machinery including the BAF complex. Ten individuals harbored bi-allelic mutations and presented with global developmental delay, epileptic encephalopathy, and spasticity, and ten individuals with de novo heterozygous mutations displayed intellectual disability, ambulation deficits, severe language impairment, hypotonia, Rett-like stereotypies, and minor facial dysmorphisms (wide mouth, diastema, bulbous nose). Nine of these ten unrelated individuals had the identical de novo c.1027G>A (p.Gly343Arg) mutation. Human-derived neurons were generated that recaptured ACTL6B expression patterns in development from progenitor cell to post-mitotic neuron, validating the use of this model. Engineered knock-out of ACTL6B in wild-type human neurons resulted in profound deficits in dendrite development, a result recapitulated in two individuals with different bi-allelic mutations, and reversed on clonal genetic repair or exogenous expression of ACTL6B. Whole-transcriptome analyses and whole-genomic profiling of the BAF complex in wild-type and bi-allelic mutant ACTL6B neural progenitor cells and neurons revealed increased genomic binding of the BAF complex in ACTL6B mutants, with corresponding transcriptional changes in several genes including TPPP and FSCN1, suggesting that altered regulation of some cytoskeletal genes contribute to altered dendrite development. Assessment of bi-alleic and heterozygous ACTL6B mutations on an ACTL6B knock-out human background demonstrated that bi-allelic mutations mimic engineered deletion deficits while heterozygous mutations do not, suggesting that the former are loss of function and the latter are gain of function. These results reveal a role for ACTL6B in neurodevelopment and implicate another component of chromatin remodeling machinery in brain disease.
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Affiliation(s)
- Scott Bell
- Psychiatric Genetics Group, Douglas Hospital Research Institute, McGill University, Montreal, QC H4H 1R3, Canada
| | - Justine Rousseau
- CHU-Sainte Justine Research Centre, University of Montreal, Montreal, QC H3T 1C5, Canada
| | - Huashan Peng
- Psychiatric Genetics Group, Douglas Hospital Research Institute, McGill University, Montreal, QC H4H 1R3, Canada
| | - Zahia Aouabed
- Psychiatric Genetics Group, Douglas Hospital Research Institute, McGill University, Montreal, QC H4H 1R3, Canada
| | - Pierre Priam
- Institute for Research in Immunology and Cancer (IRIC), University of Montreal, Montreal, QC H3T 1J4, Canada
| | - Jean-Francois Theroux
- Psychiatric Genetics Group, Douglas Hospital Research Institute, McGill University, Montreal, QC H4H 1R3, Canada
| | - Malvin Jefri
- Psychiatric Genetics Group, Douglas Hospital Research Institute, McGill University, Montreal, QC H4H 1R3, Canada
| | - Arnaud Tanti
- Psychiatric Genetics Group, Douglas Hospital Research Institute, McGill University, Montreal, QC H4H 1R3, Canada
| | - Hanrong Wu
- Psychiatric Genetics Group, Douglas Hospital Research Institute, McGill University, Montreal, QC H4H 1R3, Canada
| | - Ilaria Kolobova
- Psychiatric Genetics Group, Douglas Hospital Research Institute, McGill University, Montreal, QC H4H 1R3, Canada
| | - Heika Silviera
- Psychiatric Genetics Group, Douglas Hospital Research Institute, McGill University, Montreal, QC H4H 1R3, Canada
| | - Karla Manzano-Vargas
- Psychiatric Genetics Group, Douglas Hospital Research Institute, McGill University, Montreal, QC H4H 1R3, Canada
| | - Sophie Ehresmann
- CHU-Sainte Justine Research Centre, University of Montreal, Montreal, QC H3T 1C5, Canada
| | - Fadi F Hamdan
- CHU-Sainte Justine Research Centre, University of Montreal, Montreal, QC H3T 1C5, Canada
| | - Nuwan Hettige
- Psychiatric Genetics Group, Douglas Hospital Research Institute, McGill University, Montreal, QC H4H 1R3, Canada
| | - Xin Zhang
- Psychiatric Genetics Group, Douglas Hospital Research Institute, McGill University, Montreal, QC H4H 1R3, Canada
| | - Lilit Antonyan
- Psychiatric Genetics Group, Douglas Hospital Research Institute, McGill University, Montreal, QC H4H 1R3, Canada
| | - Christina Nassif
- CHU-Sainte Justine Research Centre, University of Montreal, Montreal, QC H3T 1C5, Canada
| | - Lina Ghaloul-Gonzalez
- Department of Pediatrics, Division of Medical Genetics, University of Pittsburgh, Children's Hospital of Pittsburgh of UPMC, Pittsburgh, PA, USA
| | - Jessica Sebastian
- Department of Pediatrics, Division of Medical Genetics, University of Pittsburgh, Children's Hospital of Pittsburgh of UPMC, Pittsburgh, PA, USA
| | - Jerry Vockley
- Department of Pediatrics, Division of Medical Genetics, University of Pittsburgh, Children's Hospital of Pittsburgh of UPMC, Pittsburgh, PA, USA
| | | | | | | | - Robert D Nicholls
- Department of Pediatrics, Division of Medical Genetics, University of Pittsburgh, Children's Hospital of Pittsburgh of UPMC, Pittsburgh, PA, USA
| | - Kristin C Herman
- University of California at Davis Medical Center, Section of Medical Genomics, Sacramento, CA 95817, USA
| | - Joshua L Deignan
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - Walla Al-Hertani
- Departments of Medical Genetics and Paediatrics, Cumming School of Medicine, Alberta Children's Hospital and University of Calgary, Calgary, AB T3B 6A8, Canada
| | - Stephanie Efthymiou
- Department of Molecular Neuroscience, UCL Institute of Neurology, Queen Square, WC1N 3BG London, UK
| | - Vincenzo Salpietro
- Department of Molecular Neuroscience, UCL Institute of Neurology, Queen Square, WC1N 3BG London, UK
| | - Noriko Miyake
- Department of Human Genetics, Yokohama City University Graduate School of Medicine, Yokohama 236-0004, Japan
| | - Yoshio Makita
- Education Center, Asahikawa Medical University, Asahikawa 078-8510, Japan
| | - Naomichi Matsumoto
- Department of Human Genetics, Yokohama City University Graduate School of Medicine, Yokohama 236-0004, Japan
| | - Rune Østern
- Department of Pediatrics, St. Olav's Hospital, Trondheim University Hospital, Postbox 3250, Sluppen 7006 Trondheim, Norway
| | - Gunnar Houge
- Department of Medical Genetics, Haukeland University Hospital, 5021 Bergen, Norway
| | - Maria Hafström
- Department of Pediatrics, St. Olav's Hospital, Trondheim University Hospital, Postbox 3250, Sluppen 7006 Trondheim, Norway
| | - Emily Fassi
- Division of Genetics and Genomic Medicine, Department of Pediatrics, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Henry Houlden
- Department of Molecular Neuroscience, UCL Institute of Neurology, Queen Square, WC1N 3BG London, UK
| | - Jolien S Klein Wassink-Ruiter
- Department of Genetics, University of Groningen and University Medical Center Groningen, 9700 RB Groningen, the Netherlands
| | - Dominic Nelson
- McGill University, Department of Human Genetics, Montreal, QC H3G 0B1, Canada
| | - Amy Goldstein
- Division of Child Neurology, Children's Hospital of Pittsburgh, Pittsburgh, PA, USA
| | - Tabib Dabir
- Northern Ireland Regional Genetics Centre, Belfast Health and Social Care Trust, Belfast City Hospital, Lisburn Road, Belfast BT9 7AB, UK
| | - Julien van Gils
- Human Genetics and Cognitive Functions, Institut Pasteur, UMR3571 CNRS, University Paris Diderot, Paris 75015, France
| | - Thomas Bourgeron
- Human Genetics and Cognitive Functions, Institut Pasteur, UMR3571 CNRS, University Paris Diderot, Paris 75015, France
| | - Richard Delorme
- Assistance Publique Hôpitaux de Paris (APHP), Robert Debré Hospital, Child and Adolescent Psychiatry Department, Paris, France
| | - Gregory M Cooper
- HudsonAlpha Institute for Biotechnology, Huntsville, AL 35806, USA
| | | | | | - Lionel Carmant
- Children's Rehabilitation Service, Mobile, AL 36604, USA
| | - Anne Lortie
- Department of Neurology, University of Montreal, Montreal, QC, Canada
| | - Renske Oegema
- Department of Genetics, University Medical Center Utrecht, 3508 AB Utrecht, the Netherlands
| | - Koen van Gassen
- Department of Genetics, University Medical Center Utrecht, 3508 AB Utrecht, the Netherlands
| | - Sarju G Mehta
- Department of Clinical Genetics, Addenbrookes Hospital, Cambridge CB2 0QQ, UK
| | - Dagmar Huhle
- Department of Clinical Genetics, Addenbrookes Hospital, Cambridge CB2 0QQ, UK
| | - Rami Abou Jamra
- Institute of Human Genetics, University Medical Center Leipzig, 04103 Leipzig, Germany
| | - Sonja Martin
- Institute of Human Genetics, University Medical Center Leipzig, 04103 Leipzig, Germany
| | - Han G Brunner
- Department of Human Genetics, Radboud University Medical Center, Donders Institute for Brain, Cognition and Behaviour, Nijmegen 6500 GA, the Netherlands; Department of Clinical Genetics and School for Oncology & Developmental Biology (GROW), Maastricht University Medical Center, 6202 AZ Maastricht, the Netherlands
| | - Dick Lindhout
- Department of Genetics, University Medical Center Utrecht, Utrecht & Stichting Epilepsie Instellingen Nederland (SEIN), Heemstede, the Netherlands
| | - Margaret Au
- Medical Genetics, Cedars Sinai Medical Center, Los Angeles, CA 90048, USA
| | - John M Graham
- Medical Genetics, Cedars Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Christine Coubes
- Service de génétique clinique, Département de génétique médicale, Maladies rares et médecine personnalisée, Centre de Référence Anomalies du développement et Syndromes malformatifs du Sud-Ouest Occitanie Réunion, CHU de Montpellier, 34295 Montpellier Cedex 5, France
| | - Gustavo Turecki
- Psychiatric Genetics Group, Douglas Hospital Research Institute, McGill University, Montreal, QC H4H 1R3, Canada
| | - Simon Gravel
- Department of Genetics, University of Groningen and University Medical Center Groningen, 9700 RB Groningen, the Netherlands
| | - Naguib Mechawar
- Psychiatric Genetics Group, Douglas Hospital Research Institute, McGill University, Montreal, QC H4H 1R3, Canada
| | - Elsa Rossignol
- CHU-Sainte Justine Research Centre, University of Montreal, Montreal, QC H3T 1C5, Canada
| | - Jacques L Michaud
- CHU-Sainte Justine Research Centre, University of Montreal, Montreal, QC H3T 1C5, Canada
| | - Julie Lessard
- Institute for Research in Immunology and Cancer (IRIC), University of Montreal, Montreal, QC H3T 1J4, Canada
| | - Carl Ernst
- Psychiatric Genetics Group, Douglas Hospital Research Institute, McGill University, Montreal, QC H4H 1R3, Canada.
| | - Philippe M Campeau
- CHU-Sainte Justine Research Centre, University of Montreal, Montreal, QC H3T 1C5, Canada.
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34
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Nixon KC, Rousseau J, Stone MH, Sarikahya M, Ehresmann S, Mizuno S, Matsumoto N, Miyake N, Baralle D, McKee S, Izumi K, Ritter AL, Heide S, Héron D, Depienne C, Titheradge H, Kramer JM, Campeau PM, Campeau PM. A Syndromic Neurodevelopmental Disorder Caused by Mutations in SMARCD1, a Core SWI/SNF Subunit Needed for Context-Dependent Neuronal Gene Regulation in Flies. Am J Hum Genet 2019; 104:596-610. [PMID: 30879640 DOI: 10.1016/j.ajhg.2019.02.001] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Accepted: 01/31/2019] [Indexed: 12/22/2022] Open
Abstract
Mutations in several genes encoding components of the SWI/SNF chromatin remodeling complex cause neurodevelopmental disorders (NDDs). Here, we report on five individuals with mutations in SMARCD1; the individuals present with developmental delay, intellectual disability, hypotonia, feeding difficulties, and small hands and feet. Trio exome sequencing proved the mutations to be de novo in four of the five individuals. Mutations in other SWI/SNF components cause Coffin-Siris syndrome, Nicolaides-Baraitser syndrome, or other syndromic and non-syndromic NDDs. Although the individuals presented here have dysmorphisms and some clinical overlap with these syndromes, they lack their typical facial dysmorphisms. To gain insight into the function of SMARCD1 in neurons, we investigated the Drosophila ortholog Bap60 in postmitotic memory-forming neurons of the adult Drosophila mushroom body (MB). Targeted knockdown of Bap60 in the MB of adult flies causes defects in long-term memory. Mushroom-body-specific transcriptome analysis revealed that Bap60 is required for context-dependent expression of genes involved in neuron function and development in juvenile flies when synaptic connections are actively being formed in response to experience. Taken together, we identify an NDD caused by SMARCD1 mutations and establish a role for the SMARCD1 ortholog Bap60 in the regulation of neurodevelopmental genes during a critical time window of juvenile adult brain development when neuronal circuits that are required for learning and memory are formed.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Philippe M Campeau
- Centre Hospitalier Universitaire Sainte-Justine Research Center, University of Montreal, Montreal, QC H3T 1C5, Canada; Department of Pediatrics, University of Montreal, Montreal, QC H4A 3J1, Canada.
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35
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Ybazeta G, Murad Y, Perez J, Lefebvre S, Weese S, Rousseau J, Diaz-Mitoma F, Tilbe K, Nokhbeh R. A159 EMERGING THEMES AND THE OLD TALE OF C. DIFFICILE INFECTION: GENETICS, RESERVOIRS, TREATMENT AND MANAGEMENT. J Can Assoc Gastroenterol 2019. [DOI: 10.1093/jcag/gwz006.158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- G Ybazeta
- Research, Health Sciences North Research Institute, Sudbury, ON, Canada
| | - Y Murad
- Northern Ontario School of Medicine (NOSM), Sudbury, ON, Canada
| | - J Perez
- University of Ottawa, Ottawa, ON, Canada
| | - S Lefebvre
- Research, Health Sciences North Research Institute, Sudbury, ON, Canada
| | - S Weese
- University of Guelph, Guelph, ON, Canada
| | - J Rousseau
- University of Guelph, Guelph, ON, Canada
| | | | - K Tilbe
- Health Sciences North, Sudbury, ON, Canada
| | - R Nokhbeh
- Research, Health Sciences North Research Institute, Sudbury, ON, Canada
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36
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Cogné B, Ehresmann S, Beauregard-Lacroix E, Rousseau J, Besnard T, Garcia T, Petrovski S, Avni S, McWalter K, Blackburn PR, Sanders SJ, Uguen K, Harris J, Cohen JS, Blyth M, Lehman A, Berg J, Li MH, Kini U, Joss S, von der Lippe C, Gordon CT, Humberson JB, Robak L, Scott DA, Sutton VR, Skraban CM, Johnston JJ, Poduri A, Nordenskjöld M, Shashi V, Gerkes EH, Bongers EM, Gilissen C, Zarate YA, Kvarnung M, Lally KP, Kulch PA, Daniels B, Hernandez-Garcia A, Stong N, McGaughran J, Retterer K, Tveten K, Sullivan J, Geisheker MR, Stray-Pedersen A, Tarpinian JM, Klee EW, Sapp JC, Zyskind J, Holla ØL, Bedoukian E, Filippini F, Guimier A, Picard A, Busk ØL, Punetha J, Pfundt R, Lindstrand A, Nordgren A, Kalb F, Desai M, Ebanks AH, Jhangiani SN, Dewan T, Coban Akdemir ZH, Telegrafi A, Zackai EH, Begtrup A, Song X, Toutain A, Wentzensen IM, Odent S, Bonneau D, Latypova X, Deb W, Redon S, Bilan F, Legendre M, Troyer C, Whitlock K, Caluseriu O, Murphree MI, Pichurin PN, Agre K, Gavrilova R, Rinne T, Park M, Shain C, Heinzen EL, Xiao R, Amiel J, Lyonnet S, Isidor B, Biesecker LG, Lowenstein D, Posey JE, Denommé-Pichon AS, Férec C, Yang XJ, Rosenfeld JA, Gilbert-Dussardier B, Audebert-Bellanger S, Redon R, Stessman HA, Nellaker C, Yang Y, Lupski JR, Goldstein DB, Eichler EE, Bolduc F, Bézieau S, Küry S, Campeau PM, Küry S, Campeau PM. Missense Variants in the Histone Acetyltransferase Complex Component Gene TRRAP Cause Autism and Syndromic Intellectual Disability. Am J Hum Genet 2019; 104:530-541. [PMID: 30827496 DOI: 10.1016/j.ajhg.2019.01.010] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Accepted: 01/18/2019] [Indexed: 12/13/2022] Open
Abstract
Acetylation of the lysine residues in histones and other DNA-binding proteins plays a major role in regulation of eukaryotic gene expression. This process is controlled by histone acetyltransferases (HATs/KATs) found in multiprotein complexes that are recruited to chromatin by the scaffolding subunit transformation/transcription domain-associated protein (TRRAP). TRRAP is evolutionarily conserved and is among the top five genes intolerant to missense variation. Through an international collaboration, 17 distinct de novo or apparently de novo variants were identified in TRRAP in 24 individuals. A strong genotype-phenotype correlation was observed with two distinct clinical spectra. The first is a complex, multi-systemic syndrome associated with various malformations of the brain, heart, kidneys, and genitourinary system and characterized by a wide range of intellectual functioning; a number of affected individuals have intellectual disability (ID) and markedly impaired basic life functions. Individuals with this phenotype had missense variants clustering around the c.3127G>A p.(Ala1043Thr) variant identified in five individuals. The second spectrum manifested with autism spectrum disorder (ASD) and/or ID and epilepsy. Facial dysmorphism was seen in both groups and included upslanted palpebral fissures, epicanthus, telecanthus, a wide nasal bridge and ridge, a broad and smooth philtrum, and a thin upper lip. RNA sequencing analysis of skin fibroblasts derived from affected individuals skin fibroblasts showed significant changes in the expression of several genes implicated in neuronal function and ion transport. Thus, we describe here the clinical spectrum associated with TRRAP pathogenic missense variants, and we suggest a genotype-phenotype correlation useful for clinical evaluation of the pathogenicity of the variants.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Sébastien Küry
- Centre Hospitalier Universitaire de Nantes, Service de Génétique Médicale, 9 quai Moncousu, 44093 Nantes, France; INSERM, CNRS, UNIV Nantes, l'institut du thorax, 44007 Nantes, France.
| | - Philippe M Campeau
- Centre Hospitalier Universitaire Sainte-Justine Research Centre, University of Montreal, Montreal, QC H3T 1C5, Canada; Department of Pediatrics, University of Montreal, Montreal, QC H3T1J4, Canada.
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Gao F, Ieritano C, Chen KT, Dias GM, Rousseau J, Bénard F, Seimbille Y. Two bifunctional desferrioxamine chelators for bioorthogonal labeling of biovectors with zirconium-89. Org Biomol Chem 2019; 16:5102-5106. [PMID: 29974105 DOI: 10.1039/c8ob01434e] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
We report two bifunctional chelators, DFO-Cys and DFO-CBT, to label biovectors with zirconium-89 according to the 2-cyanobenzothiazole/1,2-aminothiol cycloaddition. Their features are high labeling yields, rapid and efficient bioconjugation, metabolically stable luciferin-based end products, and applicability to orthogonal two-step labeling of sensitive biomolecules.
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Affiliation(s)
- F Gao
- TRIUMF, Life Sciences Division, 4004 Westbrook Mall, Vancouver, V6T 2A3, BC, Canada.
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Blok LS, Rousseau J, Twist J, Ehresmann S, Takaku M, Venselaar H, Rodan LH, Nowak CB, Douglas J, Swoboda KJ, Steeves MA, Sahai I, Stumpel CTRM, Stegmann APA, Wheeler P, Willing M, Fiala E, Kochhar A, Gibson WT, Cohen ASA, Agbahovbe R, Innes AM, Au PYB, Rankin J, Anderson IJ, Skinner SA, Louie RJ, Warren HE, Afenjar A, Keren B, Nava C, Buratti J, Isapof A, Rodriguez D, Lewandowski R, Propst J, van Essen T, Choi M, Lee S, Chae JH, Price S, Schnur RE, Douglas G, Wentzensen IM, Zweier C, Reis A, Bialer MG, Moore C, Koopmans M, Brilstra EH, Monroe GR, van Gassen KLI, van Binsbergen E, Newbury-Ecob R, Bownass L, Bader I, Mayr JA, Wortmann SB, Jakielski KJ, Strand EA, Kloth K, Bierhals T, Roberts JD, Petrovich RM, Machida S, Kurumizaka H, Lelieveld S, Pfundt R, Jansen S, Deriziotis P, Faivre L, Thevenon J, Assoum M, Shriberg L, Kleefstra T, Brunner HG, Wade PA, Fisher SE, Campeau PM. Author Correction: CHD3 helicase domain mutations cause a neurodevelopmental syndrome with macrocephaly and impaired speech and language. Nat Commun 2019; 10:883. [PMID: 30770872 PMCID: PMC6377600 DOI: 10.1038/s41467-019-08800-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Affiliation(s)
- Lot Snijders Blok
- Department of Human Genetics, Radboud University Medical Center, Nijmegen, 6500HB, The Netherlands.,Language and Genetics Department, Max Planck Institute for Psycholinguistics, Nijmegen, 6500AH, The Netherlands.,Donders Institute for Brain, Cognition and Behaviour, Radboud University, Nijmegen, 6500HE, The Netherlands
| | - Justine Rousseau
- CHU Sainte-Justine Research Center, Montreal, QC, H3T 1C5, Canada
| | - Joanna Twist
- National Institute of Environmental Health Sciences, Research Triangle Park, NC, 27709, USA
| | - Sophie Ehresmann
- CHU Sainte-Justine Research Center, Montreal, QC, H3T 1C5, Canada
| | - Motoki Takaku
- National Institute of Environmental Health Sciences, Research Triangle Park, NC, 27709, USA
| | - Hanka Venselaar
- Centre for Molecular and Biomolecular Informatics, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, 6500HB, The Netherlands
| | - Lance H Rodan
- Division of Genetics and Genomics, Boston Children's Hospital, Boston, MA, 02115, USA
| | - Catherine B Nowak
- Division of Genetics and Genomics, Boston Children's Hospital, Boston, MA, 02115, USA
| | - Jessica Douglas
- Division of Genetics and Genomics, Boston Children's Hospital, Boston, MA, 02115, USA
| | - Kathryn J Swoboda
- Department of Neurology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, 02114, USA
| | - Marcie A Steeves
- Department of Medical Genetics, Massachusetts General Hospital, Boston, MA, 02114, USA
| | - Inderneel Sahai
- Department of Medical Genetics, Massachusetts General Hospital, Boston, MA, 02114, USA
| | - Connie T R M Stumpel
- Department of Clinical Genetics and GROW-School for Oncology and Developmental Biology, Maastricht University Medical Center, Maastricht, 6202AZ, The Netherlands
| | - Alexander P A Stegmann
- Department of Clinical Genetics and GROW-School for Oncology and Developmental Biology, Maastricht University Medical Center, Maastricht, 6202AZ, The Netherlands
| | | | - Marcia Willing
- Division of Genetics and Genomic Medicine, Department of Pediatrics, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Elise Fiala
- Division of Genetics and Genomic Medicine, Department of Pediatrics, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | | | - William T Gibson
- British Columbia Children's Hospital Research Institute, Vancouver, BC, V5Z 4H4, Canada.,Department of Medical Genetics, University of British Columbia, Vancouver, BC, V6H 3N1, Canada
| | - Ana S A Cohen
- British Columbia Children's Hospital Research Institute, Vancouver, BC, V5Z 4H4, Canada.,Department of Medical Genetics, University of British Columbia, Vancouver, BC, V6H 3N1, Canada
| | - Ruky Agbahovbe
- British Columbia Children's Hospital Research Institute, Vancouver, BC, V5Z 4H4, Canada.,Department of Medical Genetics, University of British Columbia, Vancouver, BC, V6H 3N1, Canada
| | - A Micheil Innes
- Department of Medical Genetics and Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, Calgary, AB, T2N 4N1, Canada
| | - P Y Billie Au
- Department of Medical Genetics and Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, Calgary, AB, T2N 4N1, Canada
| | - Julia Rankin
- Department of Clinical Genetics, Royal Devon and Exeter NHS Foundation Trust (Heavitree), Exeter, EX2 5DW, UK
| | - Ilse J Anderson
- Division of Genetics, Department of Medicine, University of Tennessee Medical Center, Knoxville, TN, 37920, USA
| | | | | | | | - Alexandra Afenjar
- GRC ConCer-LD, Sorbonne Universités, UPMC Univ Paris ; Department of Medical Genetics and Centre de Référence Malformations et maladies congénitales du cervelet et déficiences intellectuelles de causes rares, Armand Trousseau Hospital, GHUEP, AP-HP, Paris, 75012, France
| | - Boris Keren
- AP-HP, Hôpital de la Pitié-Salpêtrière, Département de Génétique, Paris, 75013, France.,Groupe de Recherche Clinique (GRC) 'déficience intellectuelle et autisme' UPMC, Paris, 75005, France
| | - Caroline Nava
- AP-HP, Hôpital de la Pitié-Salpêtrière, Département de Génétique, Paris, 75013, France.,Groupe de Recherche Clinique (GRC) 'déficience intellectuelle et autisme' UPMC, Paris, 75005, France.,INSERM, U 1127, CNRS UMR 7225, Institut du Cerveau et de la Moelle épinière, ICM, Sorbonne Universités, UPMC Univ Paris 06 UMR S 1127, 75013, Paris, France
| | - Julien Buratti
- AP-HP, Hôpital de la Pitié-Salpêtrière, Département de Génétique, Paris, 75013, France
| | - Arnaud Isapof
- GRC ConCer-LD, Sorbonne Universités, UPMC Univ Paris 06; Department Child Neurology and Reference Center for Neuromuscular Diseases "Nord/Est/Ile-de-France", FILNEMUS, Armand Trousseau Hospital, GHUEP, AP-HP, Paris, 75012, France
| | - Diana Rodriguez
- GRC ConCer-LD, Sorbonne Universités, UPMC Univ Paris 06; Department of Child Neurology and National Reference Center for Neurogenetic Disorders, Armand Trousseau Hospital, GHUEP, AP-HP, INSERM U1141, 75012, Paris, France
| | - Raymond Lewandowski
- Clinical Genetics Division, Virginia Commonwealth University Health System, Richmond, VA, 23298, USA
| | - Jennifer Propst
- Clinical Genetics Division, Virginia Commonwealth University Health System, Richmond, VA, 23298, USA
| | - Ton van Essen
- Clinical Genetics Department, University Medical Center Groningen, Groningen, 9700RB, The Netherlands
| | - Murim Choi
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, 08826, Republic of Korea
| | - Sangmoon Lee
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, 08826, Republic of Korea
| | - Jong H Chae
- Department of Pediatrics, Seoul National University College of Medicine, Seoul National University Children's Hospital, Seoul, 08826, Republic of Korea
| | - Susan Price
- Oxford University Hospitals NHS Foundation Trust, Oxford, OX3 7HE, UK
| | | | | | | | - Christiane Zweier
- Institute of Human Genetics, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, 91054, Germany
| | - André Reis
- Institute of Human Genetics, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, 91054, Germany
| | - Martin G Bialer
- Northwell Health, Division of Medical Genetics and Genomics, Great Neck NY, 11021, USA
| | - Christine Moore
- Northwell Health, Division of Medical Genetics and Genomics, Great Neck NY, 11021, USA
| | - Marije Koopmans
- Department of Genetics, University Medical Center Utrecht, Utrecht University, Utrecht, 3508AB, The Netherlands
| | - Eva H Brilstra
- Department of Genetics, University Medical Center Utrecht, Utrecht University, Utrecht, 3508AB, The Netherlands
| | - Glen R Monroe
- Department of Genetics, University Medical Center Utrecht, Utrecht University, Utrecht, 3508AB, The Netherlands
| | - Koen L I van Gassen
- Department of Genetics, University Medical Center Utrecht, Utrecht University, Utrecht, 3508AB, The Netherlands
| | - Ellen van Binsbergen
- Department of Genetics, University Medical Center Utrecht, Utrecht University, Utrecht, 3508AB, The Netherlands
| | - Ruth Newbury-Ecob
- University Hospitals Bristol, Department of Clinical Genetics, St Michael's Hospital, Bristol, BS2 8EG, UK
| | - Lucy Bownass
- University Hospitals Bristol, Department of Clinical Genetics, St Michael's Hospital, Bristol, BS2 8EG, UK
| | - Ingrid Bader
- Department of Clinical Genetics, University Children's Hospital, Paracelsus Medical University, Salzburg, A-5020, Austria
| | - Johannes A Mayr
- Department of Pediatrics, Salzburger Landeskliniken and Paracelsus Medical University, Salzburg, A-5020, Austria
| | - Saskia B Wortmann
- Department of Pediatrics, Salzburger Landeskliniken and Paracelsus Medical University, Salzburg, A-5020, Austria.,Institute of Human Genetics, Technische Universität München, Munich, 81675, Germany.,Institute of Human Genetics, Helmholtz Zentrum München, Neuherberg, 85764, Germany
| | - Kathy J Jakielski
- Communication Sciences and Disorders, Augustana College, Rock Island, IL, 61201, USA
| | - Edythe A Strand
- Department of Neurology, Mayo Clinic, Rochester, MN, 55905, USA
| | - Katja Kloth
- Institute of Human Genetics, University Medical Center Hamburg-Eppendorf, Hamburg, 20246, Germany
| | - Tatjana Bierhals
- Institute of Human Genetics, University Medical Center Hamburg-Eppendorf, Hamburg, 20246, Germany
| | | | - John D Roberts
- National Institute of Environmental Health Sciences, Research Triangle Park, NC, 27709, USA
| | - Robert M Petrovich
- National Institute of Environmental Health Sciences, Research Triangle Park, NC, 27709, USA
| | | | | | - Stefan Lelieveld
- Department of Human Genetics, Radboud University Medical Center, Nijmegen, 6500HB, The Netherlands
| | - Rolph Pfundt
- Department of Human Genetics, Radboud University Medical Center, Nijmegen, 6500HB, The Netherlands
| | - Sandra Jansen
- Department of Human Genetics, Radboud University Medical Center, Nijmegen, 6500HB, The Netherlands.,Donders Institute for Brain, Cognition and Behaviour, Radboud University, Nijmegen, 6500HE, The Netherlands
| | - Pelagia Deriziotis
- Language and Genetics Department, Max Planck Institute for Psycholinguistics, Nijmegen, 6500AH, The Netherlands
| | - Laurence Faivre
- Equipe Génétique des Anomalies du Développement, Université de Bourgogne- Franche Comté, Dijon, 21070, France.,Centre de Génétique et Centre de Référence Anomalies du Développement et Syndromes Malformatifs, FHU TRANSLAD, Hôpital d'Enfants, CHU Dijon et Université de Bourgogne, Dijon, 21079, France
| | - Julien Thevenon
- Equipe Génétique des Anomalies du Développement, Université de Bourgogne- Franche Comté, Dijon, 21070, France.,Centre de Génétique et Centre de Référence Anomalies du Développement et Syndromes Malformatifs, FHU TRANSLAD, Hôpital d'Enfants, CHU Dijon et Université de Bourgogne, Dijon, 21079, France
| | - Mirna Assoum
- Equipe Génétique des Anomalies du Développement, Université de Bourgogne- Franche Comté, Dijon, 21070, France.,Centre de Génétique et Centre de Référence Anomalies du Développement et Syndromes Malformatifs, FHU TRANSLAD, Hôpital d'Enfants, CHU Dijon et Université de Bourgogne, Dijon, 21079, France
| | | | - Tjitske Kleefstra
- Department of Human Genetics, Radboud University Medical Center, Nijmegen, 6500HB, The Netherlands.,Donders Institute for Brain, Cognition and Behaviour, Radboud University, Nijmegen, 6500HE, The Netherlands
| | - Han G Brunner
- Department of Human Genetics, Radboud University Medical Center, Nijmegen, 6500HB, The Netherlands.,Donders Institute for Brain, Cognition and Behaviour, Radboud University, Nijmegen, 6500HE, The Netherlands.,Department of Clinical Genetics and GROW-School for Oncology and Developmental Biology, Maastricht University Medical Center, Maastricht, 6202AZ, The Netherlands
| | - Paul A Wade
- National Institute of Environmental Health Sciences, Research Triangle Park, NC, 27709, USA
| | - Simon E Fisher
- Language and Genetics Department, Max Planck Institute for Psycholinguistics, Nijmegen, 6500AH, The Netherlands. .,Donders Institute for Brain, Cognition and Behaviour, Radboud University, Nijmegen, 6500HE, The Netherlands.
| | - Philippe M Campeau
- CHU Sainte-Justine Research Center, Montreal, QC, H3T 1C5, Canada. .,Sainte-Justine Hospital, University of Montreal, Montreal, QC, H3T 1C5, Canada.
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Machol K, Rousseau J, Ehresmann S, Garcia T, Nguyen TTM, Spillmann RC, Sullivan JA, Shashi V, Jiang YH, Stong N, Fiala E, Willing M, Pfundt R, Kleefstra T, Cho MT, McLaughlin H, Rosello Piera M, Orellana C, Martínez F, Caro-Llopis A, Monfort S, Roscioli T, Nixon CY, Buckley MF, Turner A, Jones WD, van Hasselt PM, Hofstede FC, van Gassen KL, Brooks AS, van Slegtenhorst MA, Lachlan K, Sebastian J, Madan-Khetarpal S, Sonal D, Sakkubai N, Thevenon J, Faivre L, Maurel A, Petrovski S, Krantz ID, Tarpinian JM, Rosenfeld JA, Lee BH, Campeau PM, Adams DR, Alejandro ME, Allard P, Azamian MS, Bacino CA, Balasubramanyam A, Barseghyan H, Batzli GF, Beggs AH, Behnam B, Bican A, Bick DP, Birch CL, Bonner D, Boone BE, Bostwick BL, Briere LC, Brown DM, Brush M, Burke EA, Burrage LC, Chen S, Clark GD, Coakley TR, Cogan JD, Cooper CM, Cope H, Craigen WJ, D’Souza P, Davids M, Dayal JG, Dell’Angelica EC, Dhar SU, Dillon A, Dipple KM, Donnell-Fink LA, Dorrani N, Dorset DC, Douine ED, Draper DD, Eckstein DJ, Emrick LT, Eng CM, Eskin A, Esteves C, Estwick T, Ferreira C, Fogel BL, Friedman ND, Gahl WA, Glanton E, Godfrey RA, Goldstein DB, Gould SE, Gourdine JPF, Groden CA, Gropman AL, Haendel M, Hamid R, Hanchard NA, Handley LH, Herzog MR, Holm IA, Hom J, Howerton EM, Huang Y, Jacob HJ, Jain M, Jiang YH, Johnston JM, Jones AL, Kohane IS, Krasnewich DM, Krieg EL, Krier JB, Lalani SR, Lau CC, Lazar J, Lee BH, Lee H, Levy SE, Lewis RA, Lincoln SA, Lipson A, Loo SK, Loscalzo J, Maas RL, Macnamara EF, MacRae CA, Maduro VV, Majcherska MM, Malicdan MCV, Mamounas LA, Manolio TA, Markello TC, Marom R, Martínez-Agosto JA, Marwaha S, May T, McConkie-Rosell A, McCormack CE, McCray AT, Might M, Moretti PM, Morimoto M, Mulvihill JJ, Murphy JL, Muzny DM, Nehrebecky ME, Nelson SF, Newberry JS, Newman JH, Nicholas SK, Novacic D, Orange JS, Pallais JC, Palmer CG, Papp JC, Parker NH, Pena LD, Phillips JA, Posey JE, Postlethwait JH, Potocki L, Pusey BN, Reuter CM, Robertson AK, Rodan LH, Rosenfeld JA, Sampson JB, Samson SL, Schoch K, Schroeder MC, Scott DA, Sharma P, Shashi V, Signer R, Silverman EK, Sinsheimer JS, Smith KS, Spillmann RC, Splinter K, Stoler JM, Stong N, Sullivan JA, Sweetser DA, Tifft CJ, Toro C, Tran AA, Urv TK, Valivullah ZM, Vilain E, Vogel TP, Wahl CE, Walley NM, Walsh CA, Ward PA, Waters KM, Westerfield M, Wise AL, Wolfe LA, Worthey EA, Yamamoto S, Yang Y, Yu G, Zastrow DB, Zheng A. Expanding the Spectrum of BAF-Related Disorders: De Novo Variants in SMARCC2 Cause a Syndrome with Intellectual Disability and Developmental Delay. Am J Hum Genet 2019; 104:164-178. [PMID: 30580808 DOI: 10.1016/j.ajhg.2018.11.007] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Accepted: 11/14/2018] [Indexed: 12/22/2022] Open
Abstract
SMARCC2 (BAF170) is one of the invariable core subunits of the ATP-dependent chromatin remodeling BAF (BRG1-associated factor) complex and plays a crucial role in embryogenesis and corticogenesis. Pathogenic variants in genes encoding other components of the BAF complex have been associated with intellectual disability syndromes. Despite its significant biological role, variants in SMARCC2 have not been directly associated with human disease previously. Using whole-exome sequencing and a web-based gene-matching program, we identified 15 individuals with variable degrees of neurodevelopmental delay and growth retardation harboring one of 13 heterozygous variants in SMARCC2, most of them novel and proven de novo. The clinical presentation overlaps with intellectual disability syndromes associated with other BAF subunits, such as Coffin-Siris and Nicolaides-Baraitser syndromes and includes prominent speech impairment, hypotonia, feeding difficulties, behavioral abnormalities, and dysmorphic features such as hypertrichosis, thick eyebrows, thin upper lip vermilion, and upturned nose. Nine out of the fifteen individuals harbor variants in the highly conserved SMARCC2 DNA-interacting domains (SANT and SWIRM) and present with a more severe phenotype. Two of these individuals present cardiac abnormalities. Transcriptomic analysis of fibroblasts from affected individuals highlights a group of differentially expressed genes with possible roles in regulation of neuronal development and function, namely H19, SCRG1, RELN, and CACNB4. Our findings suggest a novel SMARCC2-related syndrome that overlaps with neurodevelopmental disorders associated with variants in BAF-complex subunits.
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Nguyen TTM, Murakami Y, Wigby KM, Baratang NV, Rousseau J, St-Denis A, Rosenfeld JA, Laniewski SC, Jones J, Iglesias AD, Jones MC, Masser-Frye D, Scheuerle AE, Perry DL, Taft RJ, Le Deist F, Thompson M, Kinoshita T, Campeau PM. Mutations in PIGS, Encoding a GPI Transamidase, Cause a Neurological Syndrome Ranging from Fetal Akinesia to Epileptic Encephalopathy. Am J Hum Genet 2018; 103:602-611. [PMID: 30269814 DOI: 10.1016/j.ajhg.2018.08.014] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Accepted: 08/23/2018] [Indexed: 11/17/2022] Open
Abstract
Inherited GPI deficiencies (IGDs) are a subset of congenital disorders of glycosylation that are increasingly recognized as a result of advances in whole-exome sequencing (WES) and whole-genome sequencing (WGS). IGDs cause a series of overlapping phenotypes consisting of seizures, dysmorphic features, multiple congenital malformations, and severe intellectual disability. We present a study of six individuals from three unrelated families in which WES or WGS identified bi-allelic phosphatidylinositol glycan class S (PIGS) biosynthesis mutations. Phenotypes included severe global developmental delay, seizures (partly responding to pyridoxine), hypotonia, weakness, ataxia, and dysmorphic facial features. Two of them had compound-heterozygous variants c.108G>A (p.Trp36∗) and c.101T>C (p.Leu34Pro), and two siblings of another family were homozygous for a deletion and insertion leading to p.Thr439_Lys451delinsArgLeuLeu. The third family had two fetuses with multiple joint contractures consistent with fetal akinesia. They were compound heterozygous for c.923A>G (p.Glu308Gly) and c.468+1G>C, a splicing mutation. Flow-cytometry analyses demonstrated that the individuals with PIGS mutations show a GPI-AP deficiency profile. Expression of the p.Trp36∗ variant in PIGS-deficient HEK293 cells revealed only partial restoration of cell-surface GPI-APs. In terms of both biochemistry and phenotype, loss of function of PIGS shares features with PIGT deficiency and other IGDs. This study contributes to the understanding of the GPI-AP biosynthesis pathway by describing the consequences of PIGS disruption in humans and extending the family of IGDs.
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Affiliation(s)
- Thi Tuyet Mai Nguyen
- Centre Hospitalier Universitaire Sainte Justine Research Center, University of Montreal, Montreal, QC H3T1C5, Canada
| | - Yoshiko Murakami
- Research Institute for Microbial Diseases, Osaka University, Osaka 565-0871, Japan
| | - Kristen M Wigby
- Department of Pediatrics, University of California, San Diego, San Diego, CA 92093, USA
| | - Nissan V Baratang
- Centre Hospitalier Universitaire Sainte Justine Research Center, University of Montreal, Montreal, QC H3T1C5, Canada
| | - Justine Rousseau
- Centre Hospitalier Universitaire Sainte Justine Research Center, University of Montreal, Montreal, QC H3T1C5, Canada
| | - Anik St-Denis
- Centre Hospitalier Universitaire Sainte Justine Research Center, University of Montreal, Montreal, QC H3T1C5, Canada
| | - Jill A Rosenfeld
- Department of Molecular & Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
| | | | - Julie Jones
- Greenwood Genetic Center, Greenwood, SC 29646, USA
| | - Alejandro D Iglesias
- NewYork-Presbyterian Morgan Stanley Children's Hospital, New York, NY 10032, USA
| | - Marilyn C Jones
- Department of Pediatrics, University of California, San Diego, San Diego, CA 92093, USA
| | | | | | | | | | - Françoise Le Deist
- Centre Hospitalier Universitaire Sainte Justine Research Center, University of Montreal, Montreal, QC H3T1C5, Canada
| | - Miles Thompson
- Department of Pediatrics, University of California, San Diego, San Diego, CA 92093, USA
| | - Taroh Kinoshita
- Research Institute for Microbial Diseases, Osaka University, Osaka 565-0871, Japan
| | - Philippe M Campeau
- Centre Hospitalier Universitaire Sainte Justine Research Center, University of Montreal, Montreal, QC H3T1C5, Canada.
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Mallia G, Van Toen J, Rousseau J, Jacob L, Boerlin P, Greer A, Metcalf D, Weese J. Examining the epidemiology and microbiology of Clostridium difficile carriage in elderly patients and residents of a healthcare facility in southern Ontario, Canada. J Hosp Infect 2018; 99:461-468. [DOI: 10.1016/j.jhin.2018.01.020] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Accepted: 01/27/2018] [Indexed: 11/28/2022]
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Lapierre N, Neubauer N, Miguel-Cruz A, Rincon AR, Liu L, Rousseau J. Erratum to 'The state of knowledge on technologies and their use for fall detection: A scoping review' [Int. J. Med. Inform. 111 (2018) 58-71]. Int J Med Inform 2018; 116:9. [PMID: 29887236 DOI: 10.1016/j.ijmedinf.2018.05.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
- N Lapierre
- Faculty of Medicine, Université de Montréal, C.P. 6128 Centre-ville, Montréal, Québec, H3C 3J7, Canada; Research Center, Institut universitaire de gériatrie de Montréal (Pavillon André-Roch Lecours), 4565 chemin Queen-Mary, Montréal, Québec, H3W 1W5, Canada
| | - N Neubauer
- Department of Occupational Therapy, Faculty of Rehabilitation Medicine, University of Alberta, 2-64 Corbett Hall, Edmonton, AB, T6G 2G4, Canada
| | - A Miguel-Cruz
- Department of Occupational Therapy, Faculty of Rehabilitation Medicine, University of Alberta, 2-64 Corbett Hall, Edmonton, AB, T6G 2G4, Canada; School of Medicine and Health Sciences, Universidad del Rosario, Calle 63D # 24-31, 7 de Agosto, Bogotá D.C, Colombia, Colombia
| | - A Rios Rincon
- Department of Occupational Therapy, Faculty of Rehabilitation Medicine, University of Alberta, 2-64 Corbett Hall, Edmonton, AB, T6G 2G4, Canada; School of Medicine and Health Sciences, Universidad del Rosario, Calle 63D # 24-31, 7 de Agosto, Bogotá D.C, Colombia, Colombia
| | - L Liu
- Department of Occupational Therapy, Faculty of Rehabilitation Medicine, University of Alberta, 2-64 Corbett Hall, Edmonton, AB, T6G 2G4, Canada
| | - J Rousseau
- Research Center, Institut universitaire de gériatrie de Montréal (Pavillon André-Roch Lecours), 4565 chemin Queen-Mary, Montréal, Québec, H3W 1W5, Canada; Faculty of Medicine, Université de Montréal, School of Rehabilitation, Site Pavillon Parc, C.P. 6128 Centre-ville, Montréal, Québec, H3C 3J7, Canada.
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Affiliation(s)
- D T Frazier
- Department of Econometrics and Business Statistics, Monash University, Scenic Boulevard, Clayton, Victoria, Australia
| | - G M Martin
- Department of Econometrics and Business Statistics, Monash University, Scenic Boulevard, Clayton, Victoria, Australia
| | - C P Robert
- Université Paris Dauphine, Place du Maréchal de Lattre de Tassigny, Paris cedex 16, France
| | - J Rousseau
- Department of Statistics, University of Oxford, 24–29 St Giles’, Oxford, U.K
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Lapierre N, Neubauer N, Miguel-Cruz A, Rios Rincon A, Liu L, Rousseau J. The state of knowledge on technologies and their use for fall detection: A scoping review. Int J Med Inform 2018; 111:58-71. [DOI: 10.1016/j.ijmedinf.2017.12.015] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Revised: 12/06/2017] [Accepted: 12/20/2017] [Indexed: 01/23/2023]
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Torchin H, Rousseau J, Marchand-Martin L, Truffert P, Jarreau PH, Ancel PY. Palivizumab administration in preterm infants in France: EPIPAGE-2 cohort study. Arch Pediatr 2018; 25:89-94. [PMID: 29395887 DOI: 10.1016/j.arcped.2017.12.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Revised: 11/21/2017] [Accepted: 12/14/2017] [Indexed: 10/18/2022]
Abstract
BACKGROUND Several countries, including France, have restricted the indications for monoclonal antibodies directed against respiratory syncytial virus (RSV) compared to the marketing authorization (MA). No new data concerning use of palivizumab on a national scale have been published since the 2007 update of the national guidelines. OBJECTIVES To describe palivizumab administration for RSV prophylaxis during the first RSV season in infants born prematurely in France in 2011. METHODS Infants from the national population-based cohort EPIPAGE-2 born at≤34 weeks' gestation, discharged home before 31 March 2012 and followed-up at 1year were included. The RSV season ran from 1 October 2011 to 31 March 2012. Prophylaxis was deemed "initiated" if the infant had received at least one dose of palivizumab during this period and "complete" if it had received at least five doses or as many doses as the number of exposed months. The reference documents were the MA and French Transparency Committee guidelines (TC). RESULTS Prophylaxis was indicated in 3586 of 3608 infants (99.7%) according to the MA and 1315 of 3608 (16.7%) according to the TC. A total of 1906 infants (26.6%) received at least one dose of palivizumab. The overall rate of conformity with TC indications was 85%, but was lower for infants born at 27-32 weeks' gestation. The rate of complete prophylaxis was 77.2%. The factors associated with prophylaxis initiation were low gestational age, low birthweight, high maternal educational level, type of neonatal unit, and date at discharge. Factors associated with complete prophylaxis were respiratory impairment, high educational level, and characteristics related to living conditions (absence of siblings at home, type of childcare). CONCLUSIONS Palivizumab administration in France generally conformed with TC guidelines, but could be further improved for infants born at 27-32 weeks' gestation without bronchopulmonary dysplasia.
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Affiliation(s)
- H Torchin
- Inserm U1153, Obstetric, Perinatal and Paediatric Epidemiology, Sorbonne Paris cité, "Risks in pregnancy" University Hospital Department, 75014 Paris, France; Université Paris Descartes, 75006 Paris, France; Department of Neonatal Medicine, Cochin-Port Royal Hospital, AP-HP, 75014 Paris, France.
| | - J Rousseau
- Inserm U1153, Obstetric, Perinatal and Paediatric Epidemiology, Sorbonne Paris cité, "Risks in pregnancy" University Hospital Department, 75014 Paris, France
| | - L Marchand-Martin
- Inserm U1153, Obstetric, Perinatal and Paediatric Epidemiology, Sorbonne Paris cité, "Risks in pregnancy" University Hospital Department, 75014 Paris, France
| | - P Truffert
- Department of neonatology, Jeanne-de-Flandre Hospital, CHRU Lille, 59037 Lille cedex, France
| | - P-H Jarreau
- Inserm U1153, Obstetric, Perinatal and Paediatric Epidemiology, Sorbonne Paris cité, "Risks in pregnancy" University Hospital Department, 75014 Paris, France; Université Paris Descartes, 75006 Paris, France; Department of Neonatal Medicine, Cochin-Port Royal Hospital, AP-HP, 75014 Paris, France
| | - P-Y Ancel
- Inserm U1153, Obstetric, Perinatal and Paediatric Epidemiology, Sorbonne Paris cité, "Risks in pregnancy" University Hospital Department, 75014 Paris, France; Université Paris Descartes, 75006 Paris, France; URC-CIC P1419, Cochin-Port Royal Hospital, AP-HP, F-75014 Paris, France
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Lee CS, Fu H, Baratang N, Rousseau J, Kumra H, Sutton VR, Niceta M, Ciolfi A, Yamamoto G, Bertola D, Marcelis CL, Lugtenberg D, Bartuli A, Kim C, Hoover-Fong J, Sobreira N, Pauli R, Bacino C, Krakow D, Parboosingh J, Yap P, Kariminejad A, McDonald MT, Aracena MI, Lausch E, Unger S, Superti-Furga A, Lu JT, Cohn DH, Tartaglia M, Lee BH, Reinhardt DP, Campeau PM, Campeau PM. Mutations in Fibronectin Cause a Subtype of Spondylometaphyseal Dysplasia with "Corner Fractures". Am J Hum Genet 2017; 101:815-823. [PMID: 29100092 DOI: 10.1016/j.ajhg.2017.09.019] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Accepted: 09/12/2017] [Indexed: 01/15/2023] Open
Abstract
Fibronectin is a master organizer of extracellular matrices (ECMs) and promotes the assembly of collagens, fibrillin-1, and other proteins. It is also known to play roles in skeletal tissues through its secretion by osteoblasts, chondrocytes, and mesenchymal cells. Spondylometaphyseal dysplasias (SMDs) comprise a diverse group of skeletal dysplasias and often manifest as short stature, growth-plate irregularities, and vertebral anomalies, such as scoliosis. By comparing the exomes of individuals with SMD with the radiographic appearance of "corner fractures" at metaphyses, we identified three individuals with fibronectin (FN1) variants affecting highly conserved residues. Furthermore, using matching tools and the SkelDys emailing list, we identified other individuals with de novo FN1 variants and a similar phenotype. The severe scoliosis in most individuals and rare developmental coxa vara distinguish individuals with FN1 mutations from those with classical Sutcliffe-type SMD. To study functional consequences of these FN1 mutations on the protein level, we introduced three disease-associated missense variants (p.Cys87Phe [c.260G>T], p.Tyr240Asp [c.718T>G], and p.Cys260Gly [c.778T>G]) into a recombinant secreted N-terminal 70 kDa fragment (rF70K) and the full-length fibronectin (rFN). The wild-type rF70K and rFN were secreted into the culture medium, whereas all mutant proteins were either not secreted or secreted at significantly lower amounts. Immunofluorescence analysis demonstrated increased intracellular retention of the mutant proteins. In summary, FN1 mutations that cause defective fibronectin secretion are found in SMD, and we thus provide additional evidence for a critical function of fibronectin in cartilage and bone.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Philippe M Campeau
- Centre Hospitalier Universitaire Sainte Justine Research Centre, University of Montreal, Montreal, QC H3T 1C5, Canada.
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Marom R, Jain M, Burrage LC, Song IW, Graham BH, Brown CW, Stevens SJC, Stegmann APA, Gunter AT, Kaplan JD, Gavrilova RH, Shinawi M, Rosenfeld JA, Bae Y, Tran AA, Chen Y, Lu JT, Gibbs RA, Eng C, Yang Y, Rousseau J, de Vries BBA, Campeau PM, Lee B. Heterozygous variants in ACTL6A, encoding a component of the BAF complex, are associated with intellectual disability. Hum Mutat 2017. [PMID: 28649782 DOI: 10.1002/humu.23282] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Pathogenic variants in genes encoding components of the BRG1-associated factor (BAF) chromatin remodeling complex have been associated with intellectual disability syndromes. We identified heterozygous, novel variants in ACTL6A, a gene encoding a component of the BAF complex, in three subjects with varying degrees of intellectual disability. Two subjects have missense variants affecting highly conserved amino acid residues within the actin-like domain. Missense mutations in the homologous region in yeast actin were previously reported to be dominant lethal and were associated with impaired binding of the human ACTL6A to β-actin and BRG1. A third subject has a splicing variant that creates an in-frame deletion. Our findings suggest that the variants identified in our subjects may have a deleterious effect on the function of the protein by disturbing the integrity of the BAF complex. Thus, ACTL6A gene mutation analysis should be considered in patients with intellectual disability, learning disabilities, or developmental language disorder.
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Affiliation(s)
- Ronit Marom
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas
| | - Mahim Jain
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas
| | - Lindsay C Burrage
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas
| | - I-Wen Song
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas
| | - Brett H Graham
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas
| | - Chester W Brown
- Department of Pediatrics/Genetics Division, University of Tennessee Health Science Center Memphis, Memphis, Tennessee
| | - Servi J C Stevens
- Department of Human Genetics, Maastricht University Hospital, Maastricht, The Netherlands
| | - Alexander P A Stegmann
- Department of Human Genetics, Maastricht University Hospital, Maastricht, The Netherlands
| | - Andrew T Gunter
- Department of Pediatrics, Division of Medical Genetics, University of Mississippi Medical Center, Jackson, Mississippi
| | - Julie D Kaplan
- Department of Pediatrics, Division of Medical Genetics, University of Mississippi Medical Center, Jackson, Mississippi
| | - Ralitza H Gavrilova
- Department of Medical Genetics, Mayo Clinic, Rochester, Minnesota.,Department of Neurology, Mayo Clinic, Rochester, Minnesota
| | - Marwan Shinawi
- Department of Pediatrics, Division of Genetics and Genomic Medicine, Washington University School of Medicine, St. Louis, Missouri
| | - Jill A Rosenfeld
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas
| | - Yangjin Bae
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas
| | - Alyssa A Tran
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas
| | - Yuqing Chen
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas
| | | | - Richard A Gibbs
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas.,Human Genome Sequencing Center, Baylor College of Medicine, Houston, Texas
| | - Christine Eng
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas
| | - Yaping Yang
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas
| | - Justine Rousseau
- Department of Pediatrics, CHU Ste-Justine and University of Montreal, Montreal, Canada
| | - Bert B A de Vries
- Department of Human Genetics and Donders Centre for Neuroscience, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Philippe M Campeau
- Department of Pediatrics, CHU Ste-Justine and University of Montreal, Montreal, Canada
| | - Brendan Lee
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas
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Rousseau J, Chu C, Guitard P. HOME ASSESSMENT OF PERSON-ENVIRONMENT INTERACTION (HOPE): A CROSS-CULTURAL VALIDATION STUDY. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.1237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- J. Rousseau
- École de Réadaptation/School of Rehabilitation, Université de Montréal, Montreal, Quebec, Canada,
- Research Center Institut Universitaire de Gériatrie de Montréal, Montreal, Quebec, Canada
,
| | - C. Chu
- CIUSSS de l’Est-de-Montréal, Montreal, Quebec, Canada,
| | - P. Guitard
- École des Sciences de la Réadaptation /School of Rehabilitation Sciences, Université d’Ottawa / University of Ottawa, Ottawa, Ontario, Canada
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Bourbonnais A, Rousseau J, Meunier J, Gagnon M, Lalonde M, Lapierre N, Trudeau D. BEHAVIORAL SYMPTOMS AND FALLS IN LONG-TERM CARE FACILITIES: PERCEPTIONS OF GERONTECHNOLOGY. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.1061] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- A. Bourbonnais
- Université de Montréal, Montreal, Quebec, Canada,
- Research Centre of the Institut Universitaire de Gériatrie de Montréal, Montreal, Quebec, Canada,
| | - J. Rousseau
- Université de Montréal, Montreal, Quebec, Canada,
- Research Centre of the Institut Universitaire de Gériatrie de Montréal, Montreal, Quebec, Canada,
| | - J. Meunier
- Université de Montréal, Montreal, Quebec, Canada,
| | - M. Gagnon
- Université Laval, Quebec, Quebec, Canada,
| | - M. Lalonde
- Université de Montréal, Montreal, Quebec, Canada,
- Research Centre of the Institut Universitaire de Gériatrie de Montréal, Montreal, Quebec, Canada,
| | - N. Lapierre
- Université de Montréal, Montreal, Quebec, Canada,
- Research Centre of the Institut Universitaire de Gériatrie de Montréal, Montreal, Quebec, Canada,
| | - D. Trudeau
- Centre Intégré des Services de Santé et Services Sociaux du Centre-Sud-de-l’Île-de-Montréal, Montreal, Quebec, Canada
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Ouellet DL, Cherif K, Rousseau J, Tremblay JP. Deletion of the GAA repeats from the human frataxin gene using the CRISPR-Cas9 system in YG8R-derived cells and mouse models of Friedreich ataxia. Gene Ther 2017; 24:265-274. [PMID: 28024081 DOI: 10.1038/gt.2016.89] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2016] [Accepted: 12/19/2016] [Indexed: 02/07/2023]
Abstract
The Friedreich ataxia is a monogenic disease due to a hyperexpanded GAA triplet located within the first intron of the frataxin gene that causes transcriptional issues. The resulting frataxin protein deficiency leads to a Fe-S cluster biosynthesis dysfunction in the mitochondria and to oxidative stress and cell death. Here we use the CRISPR-Cas9 system to remove the mutated GAA expansion and restore the frataxin gene transcriptional activity and protein level. Both YG8R and YG8sR mouse models and cell lines derived from these mice were used to CRISPR-edited successfully the GAA expansion in vitro and in vivo. Nevertheless, our results suggest the YG8sR as a better and more suitable model for the study of the CRISPR-Cas9 edition of the mutated frataxin gene.
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Affiliation(s)
- D L Ouellet
- Centre de Recherche, Centre Hospitalier, Universitaire de Québec, Quebec City, QC, Canada
- Département de Médecine Moléculaire, Faculté de Médecine, CHU de Québec, Université Laval, Québec City, QC, Canada
| | - K Cherif
- Centre de Recherche, Centre Hospitalier, Universitaire de Québec, Quebec City, QC, Canada
- Département de Médecine Moléculaire, Faculté de Médecine, CHU de Québec, Université Laval, Québec City, QC, Canada
| | - J Rousseau
- Centre de Recherche, Centre Hospitalier, Universitaire de Québec, Quebec City, QC, Canada
- Département de Médecine Moléculaire, Faculté de Médecine, CHU de Québec, Université Laval, Québec City, QC, Canada
| | - J P Tremblay
- Centre de Recherche, Centre Hospitalier, Universitaire de Québec, Quebec City, QC, Canada
- Département de Médecine Moléculaire, Faculté de Médecine, CHU de Québec, Université Laval, Québec City, QC, Canada
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