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Westberry BP, Rio M, Waterland MR, Williams MAK. On the origin of optical rotation changes during the κ-carrageenan disorder-to-order transition. Carbohydr Polym 2024; 333:121975. [PMID: 38494229 DOI: 10.1016/j.carbpol.2024.121975] [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: 12/10/2023] [Revised: 02/08/2024] [Accepted: 02/20/2024] [Indexed: 03/19/2024]
Abstract
It is well established that solutions of both polymeric and oligomeric κ-carrageenan exhibit a clear change in optical rotation (OR), in concert with gel-formation for polymeric samples, as the solution is cooled in the presence of certain ions. The canonical interpretation - that this OR change reflects a 'coil-to-helix transition' in single chains - has seemed unambiguous; the solution- or 'disordered'-state structure has ubiquitously been assumed to be a 'random coil', and the helical nature of carrageenan in the solid-state was settled in the 1970s. However, recent work has found that κ-carrageenan contains substantial helical secondary structure elements in the disordered-state, raising doubts over the validity of this interpretation. To investigate the origins of the OR, density-functional theory calculations were conducted using atomic models of κ-carrageenan oligomers. Changes were found to occur in the predicted OR owing purely to dimerization of chains, and - together with the additional effects of slight changes in conformation that occur when separated helical chains form double-helices - the predicted OR changes are qualitatively consistent with experimental results. These findings contribute to a growing body of evidence that the carrageenan 'disorder-to-order' transition is a cooperative process, and have further implications for the interpretation of OR changes demonstrated by macromolecules in general.
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Affiliation(s)
- B P Westberry
- School of Natural Sciences, Massey University, Palmerston North, New Zealand; MacDiarmid Institute for Advanced Materials and Nanotechnology, Wellington, New Zealand; Fonterra Research and Development Centre, Private Bag 11029, Dairy Farm Road, Palmerston North, New Zealand.
| | - M Rio
- National Institute of Water and Atmospheric Research (NIWA), Wellington, New Zealand; Science Infrastructure (NeSI), Auckland, New Zealand
| | - M R Waterland
- School of Natural Sciences, Massey University, Palmerston North, New Zealand; MacDiarmid Institute for Advanced Materials and Nanotechnology, Wellington, New Zealand
| | - M A K Williams
- School of Natural Sciences, Massey University, Palmerston North, New Zealand; MacDiarmid Institute for Advanced Materials and Nanotechnology, Wellington, New Zealand
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2
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Scala M, Tomati V, Ferla M, Lena M, Cohen JS, Fatemi A, Brokamp E, Bican A, Phillips JA, Koziura ME, Nicouleau M, Rio M, Siquier K, Boddaert N, Musante I, Tamburro S, Baldassari S, Iacomino M, Scudieri P, Rosenfeld JA, Bellus G, Reed S, Al Saif H, Russo RS, Walsh MB, Cantagrel V, Crunk A, Gustincich S, Ruggiero SM, Fitzgerald MP, Helbig I, Striano P, Severino M, Salpietro V, Pedemonte N, Zara F. De novo variants in DENND5B cause a neurodevelopmental disorder. Am J Hum Genet 2024; 111:529-543. [PMID: 38387458 PMCID: PMC10940048 DOI: 10.1016/j.ajhg.2024.02.001] [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: 08/31/2023] [Revised: 01/30/2024] [Accepted: 02/01/2024] [Indexed: 02/24/2024] Open
Abstract
The Rab family of guanosine triphosphatases (GTPases) includes key regulators of intracellular transport and membrane trafficking targeting specific steps in exocytic, endocytic, and recycling pathways. DENND5B (Rab6-interacting Protein 1B-like protein, R6IP1B) is the longest isoform of DENND5, an evolutionarily conserved DENN domain-containing guanine nucleotide exchange factor (GEF) that is highly expressed in the brain. Through exome sequencing and international matchmaking platforms, we identified five de novo variants in DENND5B in a cohort of five unrelated individuals with neurodevelopmental phenotypes featuring cognitive impairment, dysmorphism, abnormal behavior, variable epilepsy, white matter abnormalities, and cortical gyration defects. We used biochemical assays and confocal microscopy to assess the impact of DENND5B variants on protein accumulation and distribution. Then, exploiting fluorescent lipid cargoes coupled to high-content imaging and analysis in living cells, we investigated whether DENND5B variants affected the dynamics of vesicle-mediated intracellular transport of specific cargoes. We further generated an in silico model to investigate the consequences of DENND5B variants on the DENND5B-RAB39A interaction. Biochemical analysis showed decreased protein levels of DENND5B mutants in various cell types. Functional investigation of DENND5B variants revealed defective intracellular vesicle trafficking, with significant impairment of lipid uptake and distribution. Although none of the variants affected the DENND5B-RAB39A interface, all were predicted to disrupt protein folding. Overall, our findings indicate that DENND5B variants perturb intracellular membrane trafficking pathways and cause a complex neurodevelopmental syndrome with variable epilepsy and white matter involvement.
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Affiliation(s)
- Marcello Scala
- Department of Neurosciences, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health, University of Genoa, Genoa, Italy; Pediatric Neurology and Muscular Diseases Unit, IRCCS Istituto Giannina Gaslini, Genoa, Italy; UOC Genetica Medica, IRCCS Giannina Gaslini, Genoa, Italy
| | - Valeria Tomati
- UOC Genetica Medica, IRCCS Giannina Gaslini, Genoa, Italy
| | - Matteo Ferla
- Oxford Protein Informatics Group, Department of Statistics, University of Oxford, Oxford, UK
| | - Mariateresa Lena
- Department of Neurosciences, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health, University of Genoa, Genoa, Italy
| | - Julie S Cohen
- Department of Neurology and Developmental Medicine, Kennedy Krieger Institute, Baltimore, MD, USA; Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Ali Fatemi
- Department of Neurology and Developmental Medicine, Kennedy Krieger Institute, Baltimore, MD, USA; Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Elly Brokamp
- Department of Pediatrics, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Anna Bican
- Department of Pediatrics, Vanderbilt University Medical Center, Nashville, TN, USA
| | - John A Phillips
- Department of Pediatrics, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Mary E Koziura
- Department of Pediatrics, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Michael Nicouleau
- Université Paris Cité, Imagine Institute, Developmental Brain Disorders Laboratory, INSERM UMR 1163, 75015 Paris, France
| | - Marlene Rio
- Université Paris Cité, Imagine Institute, Developmental Brain Disorders Laboratory, INSERM UMR 1163, 75015 Paris, France; Service de Génétique, Necker Enfants Malades University Hospital, Assistance Publique-Hôpitaux de Pairs, Paris, France
| | - Karine Siquier
- Université Paris Cité, Imagine Institute, Developmental Brain Disorders Laboratory, INSERM UMR 1163, 75015 Paris, France
| | - Nathalie Boddaert
- Département de Radiologie Pédiatrique, INSERM UMR 1163 and INSERM U1000, AP-HP, Hôpital Necker-Enfants Malades, Paris, France
| | - Ilaria Musante
- UOC Genetica Medica, IRCCS Giannina Gaslini, Genoa, Italy
| | | | | | | | - Paolo Scudieri
- UOC Genetica Medica, IRCCS Giannina Gaslini, Genoa, Italy
| | - Jill A Rosenfeld
- Department of Molecular & Human Genetics, Baylor College of Medicine, Houston, TX, USA; Baylor Genetics Laboratories, Houston, TX, USA
| | - Gary Bellus
- Clinical Genetics, Geisinger Medical Center, Danville, PA 17822, USA
| | - Sara Reed
- Clinical Genetics, Geisinger Medical Center, Danville, PA 17822, USA
| | - Hind Al Saif
- Department of Human and Molecular Genetics, Division of Clinical Genetics, Virginia Commonwealth University School of Medicine, Richmond, VA, USA
| | | | - Matthew B Walsh
- Department of Human Genetics, Emory University, Atlanta, GA 30322, USA
| | - Vincent Cantagrel
- Université Paris Cité, Imagine Institute, Developmental Brain Disorders Laboratory, INSERM UMR 1163, 75015 Paris, France
| | | | - Stefano Gustincich
- Department of Neuroscience and Brain Technologies, Istituto Italiano di Tecnologia, 16163 Genoa, Italy
| | - Sarah M Ruggiero
- Division of Neurology, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA; The Epilepsy NeuroGenetics Initiative (ENGIN), Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Mark P Fitzgerald
- Division of Neurology, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA; The Epilepsy NeuroGenetics Initiative (ENGIN), Children's Hospital of Philadelphia, Philadelphia, PA, USA; Department of Neurology, University of Pennsylvania, Perelman School of Medicine, Philadelphia, PA 19104, USA
| | - Ingo Helbig
- Division of Neurology, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA; The Epilepsy NeuroGenetics Initiative (ENGIN), Children's Hospital of Philadelphia, Philadelphia, PA, USA; Department of Neurology, University of Pennsylvania, Perelman School of Medicine, Philadelphia, PA 19104, USA; Department of Biomedical and Health Informatics (DBHi), Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA
| | - Pasquale Striano
- Department of Neurosciences, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health, University of Genoa, Genoa, Italy; Pediatric Neurology and Muscular Diseases Unit, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | | | - Vincenzo Salpietro
- Department of Neurosciences, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health, University of Genoa, Genoa, Italy; Pediatric Neurology and Muscular Diseases Unit, IRCCS Istituto Giannina Gaslini, Genoa, Italy.
| | | | - Federico Zara
- Department of Neurosciences, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health, University of Genoa, Genoa, Italy; UOC Genetica Medica, IRCCS Giannina Gaslini, Genoa, Italy
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3
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Rhamati L, Marcolla A, Guerrot AM, Lerosey Y, Goldenberg A, Serey-Gaut M, Rio M, Cormier Daire V, Baujat G, Lyonnet S, Rubinato E, Jonard L, Rondeau S, Rouillon I, Couloignier V, Jacquemont ML, Dupin Deguine D, Moutton S, Vincent M, Isidor B, Ziegler A, Marie JP, Marlin S. Audiological phenotyping evaluation in KBG syndrome: Description of a multicenter review. Int J Pediatr Otorhinolaryngol 2023; 171:111606. [PMID: 37336020 DOI: 10.1016/j.ijporl.2023.111606] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 05/11/2023] [Accepted: 05/30/2023] [Indexed: 06/21/2023]
Abstract
OBJECTIVES Our objective was to reinforce clinical knowledge of hearing impairment in KBG syndrome. KBG syndrome is a rare genetic disorder due to monoallelic pathogenic variations of ANKRD11.The typical phenotype includes facial dysmorphism, costal and spinal malformation and developmental delay. Hearing loss in KBG patients has been reported for many years, but no study has evaluated audiological phenotyping from a clinical and an anatomical point of view. METHODS This French multicenter study included 32 KBG patients with retrospective collection of data on audiological features, ear imaging and genetic investigations. RESULTS We identified a typical audiological profil in KBG syndrome: conductive (71%), bilateral (81%), mild to moderate (84%) and stable (69%) hearing loss, with some audiological heterogeneity. Among patients with an abnormality on CT imaging (55%), ossicular chain impairment (67%), fixation of the stapes footplate (33%) and inner-ear malformations (33%) were the most common abnormalities. CONCLUSION We recommend a complete audiological and radiological evaluation and an ENT-follow up in all patients presenting with KBG Syndrome. Imaging evaluation is necessary to determine the nature of lesions in the middle and inner ear.
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Affiliation(s)
- L Rhamati
- Service d'ORL et Chirurgie Cervicofaciale et Audiophonologie, CHU Rouen, France
| | - A Marcolla
- Service d'ORL et Chirurgie Cervicofaciale et Audiophonologie, CHU Rouen, France; UR 3830 GRHVN, Université de Rouen Normandie, France
| | - A M Guerrot
- Département de Génétique, Centre de Référence des anomalies du Développement, Inserm U1245, FHU G4 Génomique, Normandie Université, UNIROUEN, CHU Rouen, France
| | - Y Lerosey
- Service d'ORL et Chirurgie Cervicofaciale et Audiophonologie, CHU Rouen, France; UR 3830 GRHVN, Université de Rouen Normandie, France
| | - A Goldenberg
- Département de Génétique, Centre de Référence des anomalies du Développement, Inserm U1245, FHU G4 Génomique, Normandie Université, UNIROUEN, CHU Rouen, France
| | - M Serey-Gaut
- Centre de Recherche en Audiologie, Hôpital Universitaire Necker-Enfants Malades, AP-HP.CUP, Paris, France; Centre de Référence Surdités Génétiques, UF Développement et Morphogénèse, Service de Médecine génomique des Maladies rares, Hôpital Universitaire Necker-Enfants Malades, AP-HP.CUP, Paris, France
| | - M Rio
- UF Neurodeveloppement-Neurologie Mitochondries-Métabolisme, Service de Médecine génomique des Maladies rares, Hôpital Universitaire Necker-Enfants Malades, AP-HP.CUP, Paris, France
| | - V Cormier Daire
- Institut Imagine, UMR-1163 INSERM, Université Paris Cité, Paris, France; Centre de Référence Maladies Osseuses Constitutionnels, UF Développement et Morphogénèse, Service de Médecine génomique des Maladies rares, Hôpital Universitaire Necker-Enfants Malades, AP-HP.CUP, Paris, France
| | - G Baujat
- Centre de Référence Maladies Osseuses Constitutionnels, UF Développement et Morphogénèse, Service de Médecine génomique des Maladies rares, Hôpital Universitaire Necker-Enfants Malades, AP-HP.CUP, Paris, France
| | - S Lyonnet
- Institut Imagine, UMR-1163 INSERM, Université Paris Cité, Paris, France; Centre de Référence Anomalies du Développement, UF Développement et Morphogénèse, Service de Médecine génomique des Maladies rares, Hôpital Universitaire Necker-Enfants Malades, AP-HP.CUP, Paris, France
| | - E Rubinato
- Centre de Référence Surdités Génétiques, UF Développement et Morphogénèse, Service de Médecine génomique des Maladies rares, Hôpital Universitaire Necker-Enfants Malades, AP-HP.CUP, Paris, France; Medical Genetics, Institute for Maternal and Child Health -IRCCS "Burlo Garofolo", Trieste, Italy
| | - L Jonard
- UF Développement et Morphogénèse, Service de Médecine génomique des Maladies rares, Hôpital Universitaire Necker-Enfants Malades, AP-HP.CUP, Paris, France
| | - S Rondeau
- UF Développement et Morphogénèse, Service de Médecine génomique des Maladies rares, Hôpital Universitaire Necker-Enfants Malades, AP-HP.CUP, Paris, France
| | - I Rouillon
- Service d'ORL pédiatrique, Hopital Universitaire Necker Enfants-Malades, AP-HP.CUP, Paris, France
| | - V Couloignier
- Service d'ORL pédiatrique, Hopital Universitaire Necker Enfants-Malades, AP-HP.CUP, Paris, France
| | - M L Jacquemont
- Génétique Médicale, Pôle femme-mère-enfant, CHU la Réunion, Saint Pierre, France
| | - D Dupin Deguine
- Service ORL, Otoneurologie et ORL pédiatrique, Hôpital Pierre Paul Riquet, CHU Purpan, Toulouse, France
| | - S Moutton
- Centre Pluridisciplinaire de Diagnostic PréNatal, Pôle mère enfant, Maison de Santé Protestante Bordeaux Bagatelle, Talence, France
| | - M Vincent
- Service de Génétique Médicale, CHU Nantes, Institut du thorax, INSERM, CNRS, UNIV Nantes, Nantes, France
| | - B Isidor
- Service de Génétique Médicale, CHU Nantes, Institut du thorax, INSERM, CNRS, UNIV Nantes, Nantes, France
| | - A Ziegler
- Service de Génétique, CHU d'Angers, Angers, France
| | - J P Marie
- Service d'ORL et Chirurgie Cervicofaciale et Audiophonologie, CHU Rouen, France; UR 3830 GRHVN, Université de Rouen Normandie, France
| | - S Marlin
- Centre de Référence Surdités Génétiques, UF Développement et Morphogénèse, Service de Médecine génomique des Maladies rares, Hôpital Universitaire Necker-Enfants Malades, AP-HP.CUP, Paris, France; Institut Imagine, UMR-1163 INSERM, Université Paris Cité, Paris, France.
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4
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Kaur M, Blair J, Devkota B, Fortunato S, Clark D, Lawrence A, Kim J, Do W, Semeo B, Katz O, Mehta D, Yamamoto N, Schindler E, Al Rawi Z, Wallace N, Wilde JJ, McCallum J, Liu J, Xu D, Jackson M, Rentas S, Tayoun AA, Zhe Z, Abdul-Rahman O, Allen B, Angula MA, Anyane-Yeboa K, Argente J, Arn PH, Armstrong L, Basel-Salmon L, Baynam G, Bird LM, Bruegger D, Ch'ng GS, Chitayat D, Clark R, Cox GF, Dave U, DeBaere E, Field M, Graham JM, Gripp KW, Greenstein R, Gupta N, Heidenreich R, Hoffman J, Hopkin RJ, Jones KL, Jones MC, Kariminejad A, Kogan J, Lace B, Leroy J, Lynch SA, McDonald M, Meagher K, Mendelsohn N, Micule I, Moeschler J, Nampoothiri S, Ohashi K, Powell CM, Ramanathan S, Raskin S, Roeder E, Rio M, Rope AF, Sangha K, Scheuerle AE, Schneider A, Shalev S, Siu V, Smith R, Stevens C, Tkemaladze T, Toimie J, Toriello H, Turner A, Wheeler PG, White SM, Young T, Loomes KM, Pipan M, Harrington AT, Zackai E, Rajagopalan R, Conlin L, Deardorff MA, McEldrew D, Pie J, Ramos F, Musio A, Kline AD, Izumi K, Raible SE, Krantz ID. Genomic analyses in Cornelia de Lange Syndrome and related diagnoses: Novel candidate genes, genotype-phenotype correlations and common mechanisms. Am J Med Genet A 2023; 191:2113-2131. [PMID: 37377026 PMCID: PMC10524367 DOI: 10.1002/ajmg.a.63247] [Citation(s) in RCA: 7] [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: 03/23/2023] [Revised: 05/02/2023] [Accepted: 05/03/2023] [Indexed: 06/29/2023]
Abstract
Cornelia de Lange Syndrome (CdLS) is a rare, dominantly inherited multisystem developmental disorder characterized by highly variable manifestations of growth and developmental delays, upper limb involvement, hypertrichosis, cardiac, gastrointestinal, craniofacial, and other systemic features. Pathogenic variants in genes encoding cohesin complex structural subunits and regulatory proteins (NIPBL, SMC1A, SMC3, HDAC8, and RAD21) are the major pathogenic contributors to CdLS. Heterozygous or hemizygous variants in the genes encoding these five proteins have been found to be contributory to CdLS, with variants in NIPBL accounting for the majority (>60%) of cases, and the only gene identified to date that results in the severe or classic form of CdLS when mutated. Pathogenic variants in cohesin genes other than NIPBL tend to result in a less severe phenotype. Causative variants in additional genes, such as ANKRD11, EP300, AFF4, TAF1, and BRD4, can cause a CdLS-like phenotype. The common role that these genes, and others, play as critical regulators of developmental transcriptional control has led to the conditions they cause being referred to as disorders of transcriptional regulation (or "DTRs"). Here, we report the results of a comprehensive molecular analysis in a cohort of 716 probands with typical and atypical CdLS in order to delineate the genetic contribution of causative variants in cohesin complex genes as well as novel candidate genes, genotype-phenotype correlations, and the utility of genome sequencing in understanding the mutational landscape in this population.
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Affiliation(s)
- Maninder Kaur
- Division of Genetics, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Justin Blair
- Division of Genetics, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | | | - Sierra Fortunato
- Division of Genetics, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | | | - Audrey Lawrence
- Division of Genetics, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Jiwoo Kim
- Division of Genetics, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Wonwook Do
- Division of Genetics, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Benjamin Semeo
- Division of Genetics, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Olivia Katz
- Division of Genetics, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Devanshi Mehta
- Division of Genetics, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Nobuko Yamamoto
- Division of Otolaryngology, National Center for Child Health and Development, Tokyo, Japan
| | - Emma Schindler
- Division of Genetics, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Zayd Al Rawi
- Division of Genetics, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Nina Wallace
- Division of Genetics, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | | | - Jennifer McCallum
- Department of Cancer Biology, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Jinglan Liu
- Department of Pathology, Anatomy, and Cell Biology, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Dongbin Xu
- Hematologics Inc, Seattle, Washington, USA
| | - Marie Jackson
- Division of Genetics, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Stefan Rentas
- Department of Pathology, Duke University School of Medicine, Durham, North Carolina, USA
| | - Ahmad Abou Tayoun
- Al Jalila Genomics Center, Al Jalila Children's Hospital, Dubai, United Arab Emirates
- Center for Genomic Discovery, Mohammed Bin Rashid University of Medicine and Health Sciences, Dubai, United Arab Emirates
| | - Zhang Zhe
- Department of Biomedical and Health Informatics, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Omar Abdul-Rahman
- Department of Genetic Medicine, Munroe-Meyer Institute, University of Nebraska Medical Center, Omaha, Nebraska, USA
| | - Bill Allen
- Fullerton Genetics Center, Mission Health, Asheville, North Carolina, USA
| | - Moris A Angula
- Department of Pediatrics, NYU Langone Hospital-Long Island, Mineola, New York, USA
| | - Kwame Anyane-Yeboa
- Pediatrics, Columbia University Irving Medical Center, New York, New York, USA
| | - Jesús Argente
- Hospital Infantil Universitario Niño Jesús & Universidad Autónoma de Madrid, Madrid, Spain
- CIBER Fisiopatología de la obesidad y nutrición (CIBEROBN) and IMDEA Food Institute, Madrid, Spain
| | - Pamela H Arn
- Department of Pediatrics, Nemours Children's Specialty Care, Jacksonville, Florida, USA
| | - Linlea Armstrong
- Department of Medical Genetics, University of British Columbia, Vancouver, British Columbia, Canada
- Department of Medical Genetics, BC Women's Hospital, Vancouver, British Columbia, Canada
| | - Lina Basel-Salmon
- Rabin Medical Center-Beilinson Hospital, Raphael Recanati Genetics Institute, Petach Tikva, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- Felsenstein Medical Research Center, Petach Tikva, Israel
| | - Gareth Baynam
- Western Australian Register of Developmental Anomalies and Genetic Services of Western Australia, King Edward Memorial Hospital, Perth, Western Australia, Australia
- Faculty of Health and Medical Sciences, Division of Pediatrics and Telethon Kids Institute, University of Western Australia, Perth, Western Australia, Australia
- Rare Care Centre, Perth Children's Hospital, Perth, Western Australia, Australia
| | - Lynne M Bird
- Department of Pediatrics, University of California San Diego, San Diego, California, USA
- Division of Genetics & Dysmophology, Rady Children's Hospital San Diego, San Diego, California, USA
| | - Daniel Bruegger
- Department of Otolaryngology-Head and Neck Surgery, University of Kansas School of Medicine, Kansas City, Kansas, USA
| | - Gaik-Siew Ch'ng
- Department of Genetics, Kuala Lumpur Hospital, Kuala Lumpur, Malaysia
| | - David Chitayat
- The Prenatal Diagnosis and Medical Genetics Program, Department of Obstetrics and Gynecology, Mount Sinai Hospital, University of Toronto, Toronto, Ontario, Canada
- Division of Clinical and Metabolic Genetics, Department of Pediatrics, The Hospital for SickKids, University of Toronto, Toronto, Ontario, Canada
| | - Robin Clark
- Department of Pediatrics, Division of Medical Genetics, Loma Linda University School of Medicine, Loma Linda, California, USA
| | - Gerald F Cox
- Division of Genetics and Genomics, Boston Children's Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Usha Dave
- R & D MILS International India, Mumbai, India
| | - Elfrede DeBaere
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium
- Center for Medical Genetics, Ghent University Hospital, Ghent, Belgium
| | - Michael Field
- Genetics of Learning Disability Service, Hunter Genetics, Waratah, New South Wales, Australia
| | - John M Graham
- Division of Medical Genetics, Department of Pediatrics, Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - Karen W Gripp
- Nemours Children's Health, Wilmington, Delaware, USA
| | - Robert Greenstein
- University of Connecticut Health Center, Farmington, Connecticut, USA
| | - Neerja Gupta
- Division of Genetics, Department of Paediatrics, All India Institute of Medical Sciences, New Delhi, India
| | - Randy Heidenreich
- Department of Pediatrics, University of New Mexico Health Sciences Center, Albuquerque, New Mexico, USA
| | - Jodi Hoffman
- Department of Pediatrics, Boston University School of Medicine, Boston, Massachusetts, USA
| | - Robert J Hopkin
- Division of Human Genetics, Cincinnati Children's Hospital Medical Center, and Department of Pediatrics University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Kenneth L Jones
- Division of Dysmorphology & Teratology, Department of Pediatrics, University of California San Diego School of Medicine, San Diego, California, USA
| | - Marilyn C Jones
- Department of Pediatrics, University of California San Diego, San Diego, California, USA
- Division of Genetics & Dysmophology, Rady Children's Hospital San Diego, San Diego, California, USA
| | | | - Jillene Kogan
- Division of Genetics, Advocate Children's Hospital, Park Ridge, Illinois, USA
| | - Baiba Lace
- Children's Clinical University Hospital, Riga, Latvia
| | - Julian Leroy
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium
- Center for Medical Genetics, Ghent University Hospital, Ghent, Belgium
| | - Sally Ann Lynch
- Department of Clinical Genetics, Children's Health Ireland, Dublin, Ireland
| | - Marie McDonald
- Duke University Medical Center, Durham, North Carolina, USA
| | - Kirsten Meagher
- Department of Medical Genetics, University of British Columbia, Vancouver, British Columbia, Canada
| | - Nancy Mendelsohn
- Complex Health Solutions, United Healthcare, Minneapolis, Minnesota, USA
| | - Ieva Micule
- Children's Clinical University Hospital, Riga, Latvia
| | - John Moeschler
- Department of Pediatrics, Geisel School of Medicine, Dartmouth College, Hanover, New Hampshire, USA
| | - Sheela Nampoothiri
- Department of Pediatric Genetics, Amrita Institute of Medical Sciences & Research Centre, Cochin, India
| | - Kaoru Ohashi
- Department of Medical Genetics, BC Women's Hospital, Vancouver, British Columbia, Canada
| | - Cynthia M Powell
- Division of Genetics and Metabolism, Department of Pediatrics, University of North Carolina School of Medicine, Chapel Hill, North Carolina, USA
| | - Subhadra Ramanathan
- Department of Pediatrics, Division of Medical Genetics, Loma Linda University School of Medicine, Loma Linda, California, USA
| | - Salmo Raskin
- Genetika-Centro de aconselhamento e laboratório de genética, Curitiba, Brazil
| | - Elizabeth Roeder
- Department of Pediatrics and Molecular and Human Genetics, Baylor College of Medicine, San Antonio, Texas, USA
| | - Marlene Rio
- Department of Genetics, Hôpital Necker-Enfants Malades, Paris, France
| | - Alan F Rope
- Genome Medical, South San Francisco, California, USA
| | - Karan Sangha
- Department of Medical Genetics, University of British Columbia, Vancouver, British Columbia, Canada
| | - Angela E Scheuerle
- Division of Genetics and Metabolism, Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Adele Schneider
- Department of Pediatrics and Oculogenetics, Wills Eye Hospital, Philadelphia, Pennsylvania, USA
| | - Stavit Shalev
- Rappaport Faculty of Medicine, Technion, The Genetics Institute, Emek Medical Center, Afula, Haifa, Israel
| | - Victoria Siu
- London Health Sciences Centre, London, Ontario, Canada
- Division of Medical Genetics, Department of Pediatrics, Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada
| | - Rosemarie Smith
- Division of Genetics, Department of Pediatrics, Maine Medical Center, Portland, Maine, USA
| | - Cathy Stevens
- Department of Pediatrics, University of Tennessee College of Medicine, T.C. Thompson Children's Hospital, Chattanooga, Tennessee, USA
| | - Tinatin Tkemaladze
- Department of Molecular and Medical Genetics, Tbilisi State Medical University, Tbilisi, Georgia
| | - John Toimie
- Clinical Genetics Service, Laboratory Medicine Building, Southern General Hospital, Glasgow, UK
| | - Helga Toriello
- Department of Pediatrics and Human Development, Michigan State University, East Lansing, Michigan, USA
| | - Anne Turner
- Centre for Clinical Genetics, Sydney Children's Hospital, Randwick, New South Wales, Australia
- Division of Genetics, Arnold Palmer Hospital, Orlando, Florida, USA
| | | | - Susan M White
- Victorian Clinical Genetics Services, Murdoch Children's Research Institute, Parkville, Australia
- Department of Paediatrics, University of Melbourne, Parkville, Australia
| | - Terri Young
- Department of Ophthalmology and Visual Sciences, University of Wisconsin-Madison, Madison, Wisconsin, USA
- Research to Prevent Blindness Inc, New York, New York, USA
| | - Kathleen M Loomes
- Division of Pediatric Gastroenterology, Hepatology and Nutrition, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
- Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Mary Pipan
- Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
- Behavioral Pediatrics, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Ann Tokay Harrington
- Center for Rehabilitation, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Elaine Zackai
- Division of Genetics, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
- Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Ramakrishnan Rajagopalan
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
- Department of Pathology and Laboratory Medicine, Division of Genomic Diagnostics, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Laura Conlin
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
- Department of Pathology and Laboratory Medicine, Division of Genomic Diagnostics, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Matthew A Deardorff
- Department of Pathology and Laboratory Medicine, Children's Hospital Los Angeles, Keck School of Medicine of the University of Southern California, Los Angeles, California, USA
- Department of Pediatrics, Children's Hospital Los Angeles, Keck School of Medicine of the University of Southern California, Los Angeles, California, USA
| | - Deborah McEldrew
- Division of Genetics, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Juan Pie
- Laboratorio de Genética Clínica y Genómica Funcional, Facultad de Medicina, Universidad de Zaragoza, Zaragoza, Spain
| | - Feliciano Ramos
- Unidad de Genética Clínica, Servicio de Pediatría, Hospital Clínico Universitario "Lozano Blesa", Zaragoza, Spain
- Departamento de Pediatría, Facultad de Medicina, Universidad de Zaragoza, Zaragoza, Spain
| | - Antonio Musio
- Istituto di Tecnologie Biomediche, Consiglio Nazionale delle Ricerche, Pisa
| | - Antonie D Kline
- Greater Baltimore Medical Centre, Harvey Institute of Human Genetics, Baltimore, Maryland, USA
| | - Kosuke Izumi
- Division of Genetics, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
- Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Sarah E Raible
- Division of Genetics, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Ian D Krantz
- Division of Genetics, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
- Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
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5
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Durrleman C, Grevent D, Aubart M, Kossorotoff M, Roux CJ, Kaminska A, Rio M, Barcia G, Boddaert N, Munnich A, Nabbout R, Desguerre I. Clinical and radiological description of 120 pediatric stroke-like episodes. Eur J Neurol 2023; 30:2051-2061. [PMID: 37046408 DOI: 10.1111/ene.15821] [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: 11/21/2022] [Revised: 03/27/2023] [Accepted: 04/03/2023] [Indexed: 04/14/2023]
Abstract
BACKGROUND AND PURPOSE Stroke-like episodes (SLEs) are defined as acute onset of neurological symptoms mimicking a stroke and radiological lesions non-congruent to vascular territory. We aimed to analyze the acute clinical and radiological features of SLEs to determine their pathophysiology. METHODS We performed a monocenter retrospective analysis of 120 SLEs in 60 children over a 20-year period. Inclusion criteria were compatible clinical symptoms and stroke-like lesions on brain magnetic resonance imaging (MRI; performed for all 120 events) with focal hyperintensity on diffusion-weighted imaging in a non-vascular territory. RESULTS Three groups were identified: children with mitochondrial diseases (n = 22) involving mitochondrial DNA mutations (55%) or nuclear DNA mutations (45%); those with other metabolic diseases or epilepsy disorders (n = 22); and those in whom no etiology was found despite extensive investigations (n = 16). Age at first SLE was younger in the group with metabolic or epilepsy disorders (18 months vs. 128 months; p < 0.0001) and an infectious trigger was more frequent (69% vs. 20%; p = 0.0001). Seizures occurred in 75% of episodes, revealing 50% episodes of SLEs and mainly leading to status epilepticus (90%). Of the 120 MRI scans confirming the diagnosis, 28 were performed within a short and strict 48-h period and were further analyzed to better understand the underlying mechanisms. The scans showed primary cortical hyperintensity (n = 28/28) with decreased apparent diffusion coefficient in 52% of cases. Systematic hyperperfusion was found on spin labeling sequences when available (n = 18/18). CONCLUSION Clinical and radiological results support the existence of a vicious circle based on two main mechanisms: energy deficit and neuronal hyperexcitability at the origin of SLE.
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Affiliation(s)
- Chloe Durrleman
- Pediatric Neurology Department, Necker Enfants Malades Hospital, APHP, Université Paris Cité, Paris, France
| | - David Grevent
- Pediatric Imaging Department, Necker Enfants Malades Hospital, APHP, Université Paris Cité, Paris, France
- Lumiere Platform, Université Paris Cité, Paris, France
| | - Melodie Aubart
- Pediatric Neurology Department, Necker Enfants Malades Hospital, APHP, Université Paris Cité, Paris, France
| | - Manoelle Kossorotoff
- Pediatric Neurology Department, Necker Enfants Malades Hospital, APHP, Université Paris Cité, Paris, France
| | - Charles-Joris Roux
- Pediatric Imaging Department, Necker Enfants Malades Hospital, APHP, Université Paris Cité, Paris, France
| | - Anna Kaminska
- Neurophysiology Department, Necker Enfants Malades Hospital, APHP, Université Paris Cité, Paris, France
| | - Marlene Rio
- Genetic Department, Necker Enfants Malades Hospital, APHP, Université Paris Cité, Paris, France
| | - Giulia Barcia
- Genetic Department, Necker Enfants Malades Hospital, APHP, Université Paris Cité, Paris, France
| | - Nathalie Boddaert
- Pediatric Imaging Department, Necker Enfants Malades Hospital, APHP, Université Paris Cité, Paris, France
- Lumiere Platform, Université Paris Cité, Paris, France
| | - Arnold Munnich
- Genetic Department, Necker Enfants Malades Hospital, APHP, Université Paris Cité, Paris, France
| | - Rima Nabbout
- Pediatric Neurology Department, Necker Enfants Malades Hospital, APHP, Université Paris Cité, Paris, France
| | - Isabelle Desguerre
- Pediatric Neurology Department, Necker Enfants Malades Hospital, APHP, Université Paris Cité, Paris, France
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6
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Otsuji S, Nishio Y, Tsujita M, Rio M, Huber C, Antón-Plágaro C, Mizuno S, Kawano Y, Miyatake S, Simon M, van Binsbergen E, van Jaarsveld RH, Matsumoto N, Cormier-Daire V, J Cullen P, Saitoh S, Kato K. Clinical diversity and molecular mechanism of VPS35L-associated Ritscher-Schinzel syndrome. J Med Genet 2023; 60:359-367. [PMID: 36113987 PMCID: PMC10086474 DOI: 10.1136/jmg-2022-108602] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Accepted: 07/12/2022] [Indexed: 12/14/2022]
Abstract
PURPOSE The Retriever subunit VPS35L is the third responsible gene for Ritscher-Schinzel syndrome (RSS) after WASHC5 and CCDC22. To date, only one pair of siblings have been reported and their condition was significantly more severe than typical RSS. This study aimed to understand the clinical spectrum and underlying molecular mechanism in VPS35L-associated RSS. METHODS We report three new patients with biallelic VPS35L variants. Biochemical and cellular analyses were performed to elucidate disease aetiology. RESULTS In addition to typical features of RSS, we confirmed hypercholesterolaemia, hypogammaglobulinaemia and intestinal lymphangiectasia as novel complications of VPS35L-associated RSS. The latter two complications as well as proteinuria have not been reported in patients with CCDC22 and WASHC5 variants. One patient showed a severe phenotype and the other two were milder. Cells established from patients with the milder phenotypes showed relatively higher VPS35L protein expression. Cellular analysis found VPS35L ablation decreased the cell surface level of lipoprotein receptor-related protein 1 and low-density lipoprotein receptor, resulting in reduced low-density lipoprotein cellular uptake. CONCLUSION VPS35L-associated RSS is a distinct clinical entity with diverse phenotype and severity, with a possible molecular mechanism of hypercholesterolaemia. These findings provide new insight into the essential and distinctive role of Retriever in human development.
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Affiliation(s)
- Shiomi Otsuji
- Department of Pediatrics and Neonatology, Nagoya City University Graduate School of Medical Sciences and Medical School, Nagoya, Japan
| | - Yosuke Nishio
- Department of Pediatrics and Neonatology, Nagoya City University Graduate School of Medical Sciences and Medical School, Nagoya, Japan
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Maki Tsujita
- Department of Biochemistry, Nagoya City University Graduate School of Medical Sciences and Medical School, Nagoya, Japan
| | - Marlene Rio
- Université Paris Cité, Génétique clinique, INSERM UMR 1163, Institut Imagine, Hôpital Necker Enfants Malades (AP-HP), Paris, France
| | - Céline Huber
- Université Paris Cité, Génétique clinique, INSERM UMR 1163, Institut Imagine, Hôpital Necker Enfants Malades (AP-HP), Paris, France
| | - Carlos Antón-Plágaro
- School of Biochemistry, Faculty of Life Sciences, University of Bristol, Bristol, UK
| | - Seiji Mizuno
- Department of Pediatrics, Aichi Developmental Disability Center, Kasugai, Japan
| | - Yoshihiko Kawano
- Department of Pediatrics, Toyota Memorial Hospital, Toyota, Japan
| | - Satoko Miyatake
- Department of Human Genetics, Yokohama City University School of Medicine Graduate School of Medicine, Yokohama, Japan
- Department of Clinical Genetics, Yokohama City University Hospital, Yokohama, Japan
| | - Marleen Simon
- Department of Genetics, University Medical Centre Utrecht, Utrecht, The Netherlands
| | - Ellen van Binsbergen
- Department of Genetics, University Medical Centre Utrecht, Utrecht, The Netherlands
| | | | - Naomichi Matsumoto
- Department of Human Genetics, Yokohama City University School of Medicine Graduate School of Medicine, Yokohama, Japan
| | - Valerie Cormier-Daire
- Université Paris Cité, Génétique clinique, INSERM UMR 1163, Institut Imagine, Hôpital Necker Enfants Malades (AP-HP), Paris, France
| | - Peter J Cullen
- School of Biochemistry, Faculty of Life Sciences, University of Bristol, Bristol, UK
| | - Shinji Saitoh
- Department of Pediatrics and Neonatology, Nagoya City University Graduate School of Medical Sciences and Medical School, Nagoya, Japan
| | - Kohji Kato
- Department of Pediatrics and Neonatology, Nagoya City University Graduate School of Medical Sciences and Medical School, Nagoya, Japan
- School of Biochemistry, Faculty of Life Sciences, University of Bristol, Bristol, UK
- Department of Genetics, Research Institute of Environmental Medicine, Nagoya University, Nagoya, Japan
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7
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Yang DD, Rio M, Michot C, Boddaert N, Yacoub W, Garcelon N, Thierry B, Bonnet D, Rondeau S, Herve D, Guey S, Angoulvant F, Cormier-Daire V. Natural history of Myhre syndrome. Orphanet J Rare Dis 2022; 17:304. [PMID: 35907855 PMCID: PMC9338657 DOI: 10.1186/s13023-022-02447-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Accepted: 07/14/2022] [Indexed: 11/16/2022] Open
Abstract
Background Myhre syndrome (MS) is a rare genetic disease characterized by skeletal disorders, facial features and joint limitation, caused by a gain of function mutation in SMAD4 gene. The natural history of MS remains incompletely understood.
Methods We recruited in a longitudinal retrospective study patients with molecular confirmed MS from the French reference center for rare skeletal dysplasia. We described natural history by chaining data from medical reports, clinical data warehouse, medical imaging and photographies.
Results We included 12 patients. The median age was 22 years old (y/o). Intrauterine and postnatal growth retardation were consistently reported. In preschool age, neurodevelopment disorders were reported in 80% of children. Specifics facial and skeletal features, thickened skin and joint limitation occured mainly in school age children. The adolescence was marked by the occurrence of pulmonary arterial hypertension (PAH) and vascular stenosis. We reported for the first time recurrent strokes from the age of 26 y/o, caused by a moyamoya syndrome in one patient. Two patients died at late adolescence and in their 20 s respectively from PAH crises and mesenteric ischemia. Conclusion Myhre syndrome is a progressive disease with severe multisystemic impairement and life-threathning complication requiring multidisciplinary monitoring.
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Affiliation(s)
- David Dawei Yang
- Centre de Recherche Des Cordeliers, INSERM UMRS 1138 Team 22, Université de Paris, 75006, Paris, France.,Pediatric Emergency Department, AP-HP, Hôpital Universitaire Necker-Enfants Malades, 75015, Paris, France
| | - Marlene Rio
- Université de Paris, Institut IMAGINE, Developmental Brain Disorders Laboratory, INSERM UMR1163, 75015, Paris, France.,Departement of Medical Genetics, AP-HP, Hôpital Universitaire Necker-Enfants Malades, 75015, Paris, France
| | - Caroline Michot
- Departement of Medical Genetics, AP-HP, Hôpital Universitaire Necker-Enfants Malades, 75015, Paris, France.,Université de Paris, Institut IMAGINE, Molecular and Physiopathological Bases of Osteochondrodysplasia, INSERM UMR1163, 75015, Paris, France
| | - Nathalie Boddaert
- Paediatric Radiology Department, AP-HP, Hôpital Universitaire Necker Enfants Malades, 75015, Paris, France.,Université de Paris, Institut IMAGINE, INSERM1163, 75015, Paris, France
| | - Wael Yacoub
- Paediatric Radiology Department, AP-HP, Hôpital Universitaire Necker Enfants Malades, 75015, Paris, France.,Université de Paris, Institut IMAGINE, INSERM1163, 75015, Paris, France
| | - Nicolas Garcelon
- Centre de Recherche Des Cordeliers, INSERM UMRS 1138 Team 22, Université de Paris, 75006, Paris, France.,Université de Paris, Institut IMAGINE, Data Science Platform, INSERM UMR1163, 75015, Paris, France
| | - Briac Thierry
- Department of Pediatric Otolaryngology-Head and Neck Surgery, AP-HP, Hôpital Universitaire Necker - Enfants Malades, 75015, Paris, France.,Université de Paris, Human Immunology, Pathophysiology, Immunotherapy/HIPI/INSERM UMR976, Stem Cell Biotechnologies, 75010, Paris, France
| | - Damien Bonnet
- Université de Paris, Institut IMAGINE, INSERM1163, 75015, Paris, France.,M3C-Paediatric Cardiology, AP-HP, Hôpital Universitaire Necker Enfants Malades, 75015, Paris, France
| | - Sophie Rondeau
- Departement of Medical Genetics, AP-HP, Hôpital Universitaire Necker-Enfants Malades, 75015, Paris, France.,Université de Paris, Institut IMAGINE, Molecular and Physiopathological Bases of Osteochondrodysplasia, INSERM UMR1163, 75015, Paris, France
| | - Dominique Herve
- Department of Neurology, AP-HP Nord, Referral Center for Rare Vascular Diseases of the Brain and Retina (CERVCO), DHU NeuroVasc, INSERM U 1161, 75010, Paris, France
| | - Stephanie Guey
- Department of Neurology, AP-HP, Hôpital Lariboisière, UMR-S1161, 75010, Paris, France
| | - Francois Angoulvant
- Centre de Recherche Des Cordeliers, INSERM UMRS 1138 Team 22, Université de Paris, 75006, Paris, France.,Pediatric Emergency Department, AP-HP, Hôpital Universitaire Necker-Enfants Malades, 75015, Paris, France
| | - Valerie Cormier-Daire
- Departement of Medical Genetics, AP-HP, Hôpital Universitaire Necker-Enfants Malades, 75015, Paris, France. .,Université de Paris, Institut IMAGINE, Molecular and Physiopathological Bases of Osteochondrodysplasia, INSERM UMR1163, 75015, Paris, France.
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8
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Tessadori F, Duran K, Knapp K, Fellner M, Smithson S, Beleza Meireles A, Elting MW, Waisfisz Q, O’Donnell-Luria A, Nowak C, Douglas J, Ronan A, Brunet T, Kotzaeridou U, Svihovec S, Saenz MS, Thiffault I, Del Viso F, Devine P, Rego S, Tenney J, van Haeringen A, Ruivenkamp CA, Koene S, Robertson SP, Deshpande C, Pfundt R, Verbeek N, van de Kamp JM, Weiss JM, Ruiz A, Gabau E, Banne E, Pepler A, Bottani A, Laurent S, Guipponi M, Bijlsma E, Bruel AL, Sorlin A, Willis M, Powis Z, Smol T, Vincent-Delorme C, Baralle D, Colin E, Revencu N, Calpena E, Wilkie AO, Chopra M, Cormier-Daire V, Keren B, Afenjar A, Niceta M, Terracciano A, Specchio N, Tartaglia M, Rio M, Barcia G, Rondeau S, Colson C, Bakkers J, Mace PD, Bicknell LS, van Haaften G, van Haaften G. Recurrent de novo missense variants across multiple histone H4 genes underlie a neurodevelopmental syndrome. Am J Hum Genet 2022; 109:750-758. [PMID: 35202563 PMCID: PMC9069069 DOI: 10.1016/j.ajhg.2022.02.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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: 11/24/2021] [Accepted: 02/03/2022] [Indexed: 12/12/2022] Open
Abstract
Chromatin is essentially an array of nucleosomes, each of which consists of the DNA double-stranded fiber wrapped around a histone octamer. This organization supports cellular processes such as DNA replication, DNA transcription, and DNA repair in all eukaryotes. Human histone H4 is encoded by fourteen canonical histone H4 genes, all differing at the nucleotide level but encoding an invariant protein. Here, we present a cohort of 29 subjects with de novo missense variants in six H4 genes (H4C3, H4C4, H4C5, H4C6, H4C9, and H4C11) identified by whole-exome sequencing and matchmaking. All individuals present with neurodevelopmental features of intellectual disability and motor and/or gross developmental delay, while non-neurological features are more variable. Ten amino acids are affected, six recurrently, and are all located within the H4 core or C-terminal tail. These variants cluster to specific regions of the core H4 globular domain, where protein-protein interactions occur with either other histone subunits or histone chaperones. Functional consequences of the identified variants were evaluated in zebrafish embryos, which displayed abnormal general development, defective head organs, and reduced body axis length, providing compelling evidence for the causality of the reported disorder(s). While multiple developmental syndromes have been linked to chromatin-associated factors, missense-bearing histone variants (e.g., H3 oncohistones) are only recently emerging as a major cause of pathogenicity. Our findings establish a broader involvement of H4 variants in developmental syndromes.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Gijs van Haaften
- Department of Genetics, Center for Molecular Medicine, University Medical Center Utrecht, Utrecht University, 3584 Utrecht, the Netherlands.
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9
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Mouillé M, Rio M, Breton S, Piketty ML, Afenjar A, Amiel J, Capri Y, Goldenberg A, Francannet C, Michot C, Mignot C, Perrin L, Quelin C, Van Gils J, Barcia G, Pingault V, Maruani G, Koumakis E, Cormier-Daire V. SATB2-associated syndrome: characterization of skeletal features and of bone fragility in a prospective cohort of 19 patients. Orphanet J Rare Dis 2022; 17:100. [PMID: 35241104 PMCID: PMC8895909 DOI: 10.1186/s13023-022-02229-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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: 07/20/2021] [Accepted: 02/06/2022] [Indexed: 11/10/2022] Open
Abstract
Background Individuals with pathogenic variants in SATB2 display intellectual disability, speech and behavioral disorders, dental abnormalities and often features of Pierre Robin sequence. SATB2 encodes a transcription factor thought to play a role in bone remodeling. The primary aim of our study was to systematically review the skeletal manifestations of SATB2-associated syndrome. For this purpose, we performed a non-interventional, multicenter cohort study, from 2017 to 2018. We included 19 patients, 9 females and 10 males ranging in age from 2 to 19 years-old. The following data were collected prospectively for each patient: clinical data, bone markers and calcium and phosphate metabolism parameters, skeletal X-rays and bone mineral density. Results Digitiform impressions were present in 8/14 patients (57%). Vertebral compression fractures affected 6/17 patients (35%). Skeletal demineralization (16/17, 94%) and cortical thinning of vertebrae (15/17) were the most frequent radiological features at the spine. Long bones were generally demineralized (18/19). The distal phalanges were short, thick and abnormally shaped. C-telopeptide (CTX) and Alkaline phosphatase levels were in the upper normal values and osteocalcin and serum procollagen type 1 amino-terminal propeptide (P1NP) were both increased. Vitamin D insufficiency was frequent (66.7%). Conclusion We conclude that SATB2 pathogenic variants are responsible for skeletal demineralization and osteoporosis. We found increased levels of bone formation markers, supporting the key role of SATB2 in osteoblast differentiation. These results support the need for bone evaluation in children and adult patients with SATB2-associated syndrome (SAS). Supplementary Information The online version contains supplementary material available at 10.1186/s13023-022-02229-5.
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Affiliation(s)
- M Mouillé
- Clinical Genetics, Necker Enfants Malades Hospital, APHP, 149 rue de Sevres, Paris, 75015, France.,Department of Neonatal Medicine, Cochin-Port Royal Hospital, APHP, Paris, France
| | - M Rio
- Clinical Genetics, Necker Enfants Malades Hospital, APHP, 149 rue de Sevres, Paris, 75015, France
| | - S Breton
- Department of Pediatric Radiology, Necker Enfants Malades Hospital, APHP, Paris, France
| | - M L Piketty
- Functional Exploration Laboratory, Necker Enfants Malades Hospital, APHP, Paris, France
| | - A Afenjar
- Sorbonne University, Reference Center for Intellectual Disabilities, Department of Genetics and Medical Embryology, Armand-Trousseau Hospital, APHP, Paris, France
| | - J Amiel
- Clinical Genetics, Necker Enfants Malades Hospital, APHP, 149 rue de Sevres, Paris, 75015, France
| | - Y Capri
- Clinical Genetics Functional Unit, Robert Debré Hospital, APHP, Paris, France
| | | | - C Francannet
- Clinical Genetics, Clermont-Ferrand CHU, Clermont-Ferrand, France
| | - C Michot
- Clinical Genetics, Necker Enfants Malades Hospital, APHP, 149 rue de Sevres, Paris, 75015, France.,Paris Cité University, Reference Center for Constitutional Bone Diseases, INSERM UMR1163, Imagine Institute, Paris, France
| | - C Mignot
- Sorbonne University, Reference Center for Intellectual Disabilities, Department of Genetics and Medical Embryology, Armand-Trousseau Hospital, APHP, Paris, France.,Clinical Genetics, La Pitié Salpétrière Hospital, APHP, Paris, France
| | - L Perrin
- Clinical Genetics Functional Unit, Robert Debré Hospital, APHP, Paris, France
| | - C Quelin
- Clinical Genetics, Hospital Sud, Rennes, France
| | - J Van Gils
- Clinical Genetics, Hospital Pellegrin, Bordeaux, France
| | - G Barcia
- Molecular Genetics, Necker Enfants Malades Hospital, APHP, Paris, France
| | - V Pingault
- Molecular Genetics, Necker Enfants Malades Hospital, APHP, Paris, France
| | - G Maruani
- Department of Physiology, Hôpital Necker Enfants Malades and Hôpital Européen Georges Pompidou, AP-HP, Paris, France
| | - E Koumakis
- Paris Cité University, Reference Center for Constitutional Bone Diseases, INSERM UMR1163, Imagine Institute, Paris, France.,Reference Center for Skeletal Dysplasia, Cochin Hospital, APHP, Paris, France
| | - V Cormier-Daire
- Clinical Genetics, Necker Enfants Malades Hospital, APHP, 149 rue de Sevres, Paris, 75015, France. .,Paris Cité University, Reference Center for Constitutional Bone Diseases, INSERM UMR1163, Imagine Institute, Paris, France.
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10
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Kumble S, Levy AM, Punetha J, Gao H, Ah Mew N, Anyane-Yeboa K, Benke PJ, Berger SM, Bjerglund L, Campos-Xavier B, Ciliberto M, Cohen JS, Comi AM, Curry C, Damaj L, Denommé-Pichon AS, Emrick L, Faivre L, Fasano MB, Fiévet A, Finkel RS, García-Miñaúr S, Gerard A, Gomez-Puertas P, Guillen Sacoto MJ, Hoffman TL, Howard L, Iglesias AD, Izumi K, Larson A, Leiber A, Lozano R, Marcos-Alcalde I, Mintz CS, Mullegama SV, Møller RS, Odent S, Oppermann H, Ostergaard E, Pacio-Míguez M, Palomares-Bralo M, Parikh S, Paulson AM, Platzer K, Posey JE, Potocki L, Revah-Politi A, Rio M, Ritter AL, Robinson S, Rosenfeld JA, Santos-Simarro F, Sousa SB, Wéber M, Xie Y, Chung WK, Brown NJ, Tümer Z. The clinical and molecular spectrum of QRICH1 associated neurodevelopmental disorder. Hum Mutat 2022; 43:266-282. [PMID: 34859529 DOI: 10.1002/humu.24308] [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: 06/03/2021] [Revised: 11/09/2021] [Accepted: 11/28/2021] [Indexed: 11/10/2022]
Abstract
De novo variants in QRICH1 (Glutamine-rich protein 1) has recently been reported in 11 individuals with intellectual disability (ID). The function of QRICH1 is largely unknown but it is likely to play a key role in the unfolded response of endoplasmic reticulum stress through transcriptional control of proteostasis. In this study, we present 27 additional individuals and delineate the clinical and molecular spectrum of the individuals (n = 38) with QRICH1 variants. The main clinical features were mild to moderate developmental delay/ID (71%), nonspecific facial dysmorphism (92%) and hypotonia (39%). Additional findings included poor weight gain (29%), short stature (29%), autism spectrum disorder (29%), seizures (24%) and scoliosis (18%). Minor structural brain abnormalities were reported in 52% of the individuals with brain imaging. Truncating or splice variants were found in 28 individuals and 10 had missense variants. Four variants were inherited from mildly affected parents. This study confirms that heterozygous QRICH1 variants cause a neurodevelopmental disorder including short stature and expands the phenotypic spectrum to include poor weight gain, scoliosis, hypotonia, minor structural brain anomalies, and seizures. Inherited variants from mildly affected parents are reported for the first time, suggesting variable expressivity.
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Affiliation(s)
- Smitha Kumble
- Victorian Clinical Genetics Services, Murdoch Children's Research Institute, Melbourne, Australia
| | - Amanda M Levy
- Department of Clinical Genetics, Kennedy Center, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Jaya Punetha
- Department of Molecular & Human Genetics, Baylor College of Medicine, Houston, TX, USA
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York City, New York, USA
| | - Hua Gao
- Department of Review Analysis, GeneDx LLC, Maryland, USA
| | - Nicholas Ah Mew
- Rare Disease Institute, Children's National Hospital, Washington, District of Columbia, USA
| | - Kwame Anyane-Yeboa
- Department of Pediatrics, Columbia University Irving Medical Center, New York City, New York, USA
| | - Paul J Benke
- Division of Genetics, Joe DiMaggio Children's Hospital, Hollywood, Florida, USA
| | - Sara M Berger
- Department of Pediatrics, Columbia University Irving Medical Center, New York City, New York, USA
| | - Lise Bjerglund
- Department of Pediatrics, University Hospital Hvidovre, Hvidovre, Denmark
| | - Belinda Campos-Xavier
- Medical Genetics Unit, Hospital Pediátrico, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
- Division of Genetic Medicine, Lausanne University Hospital and University of Lausanne (CHUV), Lausanne, Switzerland
| | - Michael Ciliberto
- Stead Family Department of Pediatrics, University of Iowa, Iowa City, Iowa, USA
| | - Julie S Cohen
- Department of Neurology and Developmental Medicine, Kennedy Krieger Institute, Baltimore, Maryland, USA
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Anne M Comi
- Department of Neurology and Developmental Medicine, Kennedy Krieger Institute, Baltimore, Maryland, USA
- Departments of Neurology and Pediatrics, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Cynthia Curry
- Deptartment of Pediatrics, Genetic Medicine, UCSF/Fresno, Fresno, California, USA
| | - Lena Damaj
- Service de pédiatrie et de génétique clinique, CHU Rennes, Rennes, France
| | - Anne-Sophie Denommé-Pichon
- INSERM UMR1231 Equipe GAD, Université de Bourgogne, Dijon, France
- Unité Fonctionnelle Innovation en Diagnostic génomique des maladies rares, FHU-TRANSLAD, CHU Dijon Bourgogne, Dijon, France
| | - Lisa Emrick
- Department of Molecular & Human Genetics, Baylor College of Medicine, Houston, TX, USA
- Division of Neurology and Developmental Neuroscience, Department of Pediatrics, Baylor College of Medicine, Houston, Texas, USA
| | - Laurence Faivre
- Centre de Référence Anomalies du Développement et Syndromes Malformatifs, FHU TRANSLAD, Hôpital d'Enfants, CHU Dijon, Dijon, France
- Inserm UMR1231 GAD, Génétique des Anomalies du Développement, Université de Bourgogne, Dijon, France
| | - Mary Beth Fasano
- Internal Medicine & Pediatrics, University of Iowa Carver College of Medicine, Iowa City, Iowa, USA
| | - Alice Fiévet
- Laboratoire de biologie médicale multisites Seqoia-FMG2025, Paris, France
- Service Génétique des Tumeurs, Gustave Roussy, Villejuif, France
| | - Richard S Finkel
- Nemours Children's Hospital, Orlando, Florida, USA
- Center for Experimental Neurotherapeutics, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - Sixto García-Miñaúr
- Institute of Medical and Molecular Genetics (INGEMM), La Paz University Hospital, Idipaz, Madrid, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER, U753), Instituto Carlos III, Madrid, Spain
| | - Amanda Gerard
- Department of Molecular & Human Genetics, Baylor College of Medicine, Houston, TX, USA
- Texas Children's Hospital, Houston, Texas, USA
| | - Paulino Gomez-Puertas
- Molecular Modelling Group, Severo Ochoa Molecular Biology Centre (CBMSO, CSIC-UAM), Madrid, Spain
| | | | - Trevor L Hoffman
- Regional Department of Genetics, Southern California Kaiser Permanente Medical Group, Pasadena, California, USA
| | - Lillian Howard
- Stead Family Department of Pediatrics, University of Iowa, Iowa City, Iowa, USA
| | - Alejandro D Iglesias
- Division of Clinical Genetics, Columbia University Irving Medical Center, New York City, New York, USA
| | - Kosuke Izumi
- Divison of Human Genetics, Department of Pediatrics, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Austin Larson
- Section of Genetics, Department of Pediatrics, University of Colorado School of Medicine, Aurora, Colorado, USA
| | - Anja Leiber
- Department of Neuropediatrics, Childrens Hospital of Eastern Switzerland St. Gallen, St. Gallen, Switzerland
| | - Reymundo Lozano
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York City, New York, USA
| | - Iñigo Marcos-Alcalde
- Molecular Modelling Group, Severo Ochoa Molecular Biology Centre (CBMSO, CSIC-UAM), Madrid, Spain
- Biosciences Research Institute, School of Experimental Sciences, Universidad Francisco de Vitoria, Pozuelo de Alarcón, Madrid, Spain
| | - Cassie S Mintz
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York City, New York, USA
| | | | - Rikke S Møller
- Department of Epilepsy Genetics and Personalized Treatment, The Danish Epilepsy Centre, Dianalund, Denmark
- Department of Regional Health Research, University of Southern Denmark, Odense, Denmark
| | - Sylvie Odent
- CHU Rennes, Hôpital Sud, Service de Génétique Clinique, Univ Rennes, CNRS IGDR UMR 6290, Centre de référence Anomalies du développement CLAD-Ouest, ERN ITHACA, Rennes, France
| | - Henry Oppermann
- Institute of Human Genetics, University of Leipzig Medical Center, Leipzig, Germany
| | - Elsebet Ostergaard
- Department of Clinical Genetics, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Marta Pacio-Míguez
- Institute of Medical and Molecular Genetics (INGEMM), La Paz University Hospital, Idipaz, Madrid, Spain
| | - Maria Palomares-Bralo
- Institute of Medical and Molecular Genetics (INGEMM), La Paz University Hospital, Idipaz, Madrid, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER, U753), Instituto Carlos III, Madrid, Spain
| | - Sumit Parikh
- Mitochondrial Medicine & Neurogenetics, Cleveland Clinic, Cleveland, Ohio, USA
| | - Anna M Paulson
- Stead Family Department of Pediatrics, University of Iowa, Iowa City, Iowa, USA
| | - Konrad Platzer
- Institute of Human Genetics, University of Leipzig Medical Center, Leipzig, Germany
| | - Jennifer E Posey
- Department of Molecular & Human Genetics, Baylor College of Medicine, Houston, TX, USA
| | - Lorraine Potocki
- Department of Molecular & Human Genetics, Baylor College of Medicine, Houston, TX, USA
- Texas Children's Hospital, Houston, Texas, USA
| | - Anya Revah-Politi
- Institute for Genomic Medicine, Columbia University Medical Center, New York City, New York, USA
- Precision Genomics Laboratory, Columbia University Irving Medical Center, New York City, New York, USA
| | - Marlene Rio
- Service de Génétique, Hôpital Necker-Enfants Malades, Assistance Publique-Hôpitaux de Paris (APHP), Paris, France
| | - Alyssa L Ritter
- Divison of Human Genetics, Department of Pediatrics, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Scott Robinson
- Department of Pediatrics, Columbia University Irving Medical Center, New York City, New York, USA
| | - Jill A Rosenfeld
- Department of Molecular & Human Genetics, Baylor College of Medicine, Houston, TX, USA
- Baylor Genetics Laboratories, Houston, Texas, USA
| | - Fernando Santos-Simarro
- Institute of Medical and Molecular Genetics (INGEMM), La Paz University Hospital, Idipaz, Madrid, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER, U753), Instituto Carlos III, Madrid, Spain
| | - Sérgio B Sousa
- Medical Genetics Unit, Hospital Pediátrico, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
- University Clinic of Genetics, Faculty of Medicine, University of Coimbra, Coimbra, Portugal
| | - Mathys Wéber
- Centre de Référence Anomalies du Développement et Syndromes Malformatifs, FHU TRANSLAD, Hôpital d'Enfants, CHU Dijon, Dijon, France
| | - Yili Xie
- Clinical Genomics Program, GeneDx, Maryland, USA
| | - Wendy K Chung
- Department of Pediatrics, Columbia University Irving Medical Center, New York City, New York, USA
| | - Natasha J Brown
- Victorian Clinical Genetics Services, Murdoch Children's Research Institute, Melbourne, Australia
- Department of Paediatrics, Royal Children's Hospital, University of Melbourne, Melbourne, Australia
| | - Zeynep Tümer
- Department of Clinical Genetics, Kennedy Center, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
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Gobin-Limballe S, Ottolenghi C, Reyal F, Arnoux JB, Magen M, Simon M, Brassier A, Jabot-Hanin F, Lonlay PD, Pontoizeau C, Guirat M, Rio M, Gesny R, Gigarel N, Royer G, Steffann J, Munnich A, Bonnefont JP. OTC deficiency in females: Phenotype-genotype correlation based on a 130-family cohort. J Inherit Metab Dis 2021; 44:1235-1247. [PMID: 34014569 DOI: 10.1002/jimd.12404] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 05/14/2021] [Accepted: 05/18/2021] [Indexed: 12/30/2022]
Abstract
OTC deficiency, an inherited urea cycle disorder, is caused by mutations in the X-linked OTC gene. Phenotype-genotype correlations are well understood in males but still poorly known in females. Taking advantage of a cohort of 130 families (289 females), we assessed the relative contribution of OTC enzyme activity, X chromosome inactivation, and OTC gene sequencing to genetic counseling in heterozygous females. Twenty two percent of the heterozygous females were clinically affected, with episodic (11%), chronic (7.5%), or neonatal forms of the disease (3.5%). Overall mortality rate was 4%. OTC activity, ranging from 0% to 60%, did not correlate with phenotype at the individual level. Analysis of multiple samples from 4 mutant livers showed intra-hepatic variability of OTC activity and X inactivation profile (range of variability: 30% and 20%, respectively) without correlation between both parameters for 3 of the 4 livers. Ninety disease-causing variants were found, 27 of which were novel. Mutations were classified as "mild" or "severe," based on male phenotypes and/or in silico prediction. In our cohort, a serious disease occurred in 32% of females with a severe mutation, compared to 4% in females with a mild mutation (odds ratio = 1.365; P = 1.6e-06). These data should help prenatal diagnosis for heterozygous females and genetic counseling after fortuitous findings of OTC variants in pangenomic sequencing.
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Affiliation(s)
| | - Chris Ottolenghi
- Metabolomic and Proteomic Biochemistry Department, Necker Hospital, APHP Centre- Paris University, Paris, France
- INSERM UMR1163, Institut Imagine, Paris University, Paris, France
| | - Fabien Reyal
- Molecular Genetics Department, Necker Hospital, APHP Centre-Paris University, Paris, France
- Breast Gynecologic Cancer Reconstructive Team, Institut Curie, Paris University, Paris, France
| | - Jean-Baptiste Arnoux
- Inherited Metabolic Disease Department and National Reference Centre for Inherited Metabolic diseases, Necker Hospital, APHP Centre-Paris University, Paris, France
- INSERM U1151, INEM, Paris University, Paris, France
| | - Maryse Magen
- Molecular Genetics Department, Necker Hospital, APHP Centre-Paris University, Paris, France
| | - Marie Simon
- Molecular Genetics Department, Necker Hospital, APHP Centre-Paris University, Paris, France
| | - Anaïs Brassier
- Inherited Metabolic Disease Department and National Reference Centre for Inherited Metabolic diseases, Necker Hospital, APHP Centre-Paris University, Paris, France
- INSERM U1151, INEM, Paris University, Paris, France
| | - Fabienne Jabot-Hanin
- Bioinformatics Platform, Paris University, INSERM UMR1163, Institut Imagine, Paris, France
- Structure Federative de Recherche Necker, INSERM US24/CNRS UMS3633, Paris, France
| | - Pascale De Lonlay
- Inherited Metabolic Disease Department and National Reference Centre for Inherited Metabolic diseases, Necker Hospital, APHP Centre-Paris University, Paris, France
- INSERM U1151, INEM, Paris University, Paris, France
| | - Clement Pontoizeau
- Metabolomic and Proteomic Biochemistry Department, Necker Hospital, APHP Centre- Paris University, Paris, France
- INSERM UMR1163, Institut Imagine, Paris University, Paris, France
| | - Manel Guirat
- Molecular Genetics Department, Necker Hospital, APHP Centre-Paris University, Paris, France
| | - Marlene Rio
- Clinical Genetics Department, Necker Hospital, APHP Centre-Paris University, Paris, France
| | - Roselyne Gesny
- Molecular Genetics Department, Necker Hospital, APHP Centre-Paris University, Paris, France
| | - Nadine Gigarel
- Molecular Genetics Department, Necker Hospital, APHP Centre-Paris University, Paris, France
| | - Ghislaine Royer
- Molecular Genetics Department, Necker Hospital, APHP Centre-Paris University, Paris, France
| | - Julie Steffann
- Molecular Genetics Department, Necker Hospital, APHP Centre-Paris University, Paris, France
- INSERM UMR1163, Institut Imagine, Paris University, Paris, France
| | - Arnold Munnich
- INSERM UMR1163, Institut Imagine, Paris University, Paris, France
- Clinical Genetics Department, Necker Hospital, APHP Centre-Paris University, Paris, France
| | - Jean-Paul Bonnefont
- Molecular Genetics Department, Necker Hospital, APHP Centre-Paris University, Paris, France
- INSERM UMR1163, Institut Imagine, Paris University, Paris, France
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12
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Rose L, Dilasser F, Rio M, Guignabert C, Loirand G, Sauzeau V. Smooth muscle Rac1 contributes to pulmonary hypertension. Archives of Cardiovascular Diseases Supplements 2021. [DOI: 10.1016/j.acvdsp.2021.04.104] [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: 11/16/2022]
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13
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Dangles MT, Malan V, Dumas G, Romana S, Raoul O, Coste-Zeitoun D, Soufflet C, Vignolo-Diard P, Bahi-Buisson N, Barnérias C, Chemaly N, Desguerre I, Gitiaux C, Hully M, Bourgeois M, Guimier A, Rio M, Munnich A, Nabbout R, Kaminska A, Eisermann M. Electro-clinical features in epileptic children with chromosome 15q duplication syndrome. Clin Neurophysiol 2021; 132:1126-1137. [PMID: 33773177 DOI: 10.1016/j.clinph.2021.02.010] [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: 12/08/2020] [Revised: 02/03/2021] [Accepted: 02/22/2021] [Indexed: 11/25/2022]
Abstract
OBJECTIVE We aimed to describe epilepsy and EEG patterns related to vigilance states and age, in chromosome15-long-arm-duplication-syndrome (dup15q) children with epilepsy, in both duplication types: interstitial (intdup15) and isodicentric (idic15). METHODS Clinical data and 70 EEGs of 12 patients (5 intdup15, 7 idic15), followed from 4.5 m.o to 17y4m (median follow-up 8y3m), were retrospectively reviewed. EEGs were analyzed visually and using power spectrum analysis. RESULTS Seventy video-EEGs were analyzed (1-16 per patient, median 6), follow-up lasting up to 8y10m (median 4y2m): 25 EEGs in intdup15 (8 m.o to 12y.o, median 4y6m) and 45 EEGs in idic15 (7 m.o to 12 y.o, median 15 m). Epilepsy: 6 West syndrome (WS) (2intdup15, 4idic15); 4 Lennox-Gastaut syndromes (LGS) (1 intdup15, 3 idic15), 2 evolving from WS; focal epilepsy (3 intdup15). In idic15, WS displayed additional myoclonic seizures (3), atypical (4) or no hypsarrhythmia (2) and posterior predominant spike and polyspike bursts (4). Beta-band rapid-rhythms (RR): present in 11 patients, power decreased during non-REM-sleep, localization shifted from diffuse to anterior, peak frequency increased with age. CONCLUSION WS with peculiar electro-clinical features and LGS, along with beta-band RR decreasing in non-REM-sleep and shifting from diffuse to anterior localization with age are recognizable features pointing towards dup15q diagnosis in children with autism spectrum disorder and developmental delay. SIGNIFICANCE This study describes electroclinical features in both interstitial and isodicentric duplications of chromosome 15q, in epileptic children, including some recent extensions regarding sleep features; and illustrates how the temporo-spatial organization of beta oscillations can be of significant help in directing towards dup15q diagnosis hypothesis.
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Affiliation(s)
- M-T Dangles
- Department of Clinical Neurophysiology, Necker-Enfants-Malades Hospital, Assistance Publique -Hôpitaux de Paris, Paris, France; Centre de Référence des Epilepsies Rares CRéER, Department of Pediatric Neurology, Necker-Enfants-Malades Hospital, Assistance Publique -Hôpitaux de Paris, Paris, France; Department of Pediatric Neurology, Necker-Enfants-Malades Hospital, Assistance Publique -Hôpitaux de Paris, Paris, France; Université de Paris, Paris, France.
| | - V Malan
- Université de Paris, Paris, France; Department of Cytogenetics, Necker-Enfants-Malades Hospital, Assistance Publique -Hôpitaux de Paris, Paris, France
| | - G Dumas
- Department of Clinical Neurophysiology, Necker-Enfants-Malades Hospital, Assistance Publique -Hôpitaux de Paris, Paris, France; Human Genetics and Cognitive Functions, Institut Pasteur, UMR3571 CNRS, Université de Paris, Paris, France; Department of Psychiatry, Université de Montreal, CHU Sainte-Justine Hospital, Montreal, QC, Canada
| | - S Romana
- Université de Paris, Paris, France; Department of Cytogenetics, Necker-Enfants-Malades Hospital, Assistance Publique -Hôpitaux de Paris, Paris, France
| | - O Raoul
- Department of Cytogenetics, Necker-Enfants-Malades Hospital, Assistance Publique -Hôpitaux de Paris, Paris, France
| | - D Coste-Zeitoun
- Department of Clinical Neurophysiology, Necker-Enfants-Malades Hospital, Assistance Publique -Hôpitaux de Paris, Paris, France; Centre de Référence des Epilepsies Rares CRéER, Department of Pediatric Neurology, Necker-Enfants-Malades Hospital, Assistance Publique -Hôpitaux de Paris, Paris, France
| | - C Soufflet
- Department of Clinical Neurophysiology, Necker-Enfants-Malades Hospital, Assistance Publique -Hôpitaux de Paris, Paris, France
| | - P Vignolo-Diard
- Department of Clinical Neurophysiology, Necker-Enfants-Malades Hospital, Assistance Publique -Hôpitaux de Paris, Paris, France
| | - N Bahi-Buisson
- Department of Pediatric Neurology, Necker-Enfants-Malades Hospital, Assistance Publique -Hôpitaux de Paris, Paris, France; Université de Paris, Paris, France
| | - C Barnérias
- Department of Pediatric Neurology, Necker-Enfants-Malades Hospital, Assistance Publique -Hôpitaux de Paris, Paris, France
| | - N Chemaly
- Centre de Référence des Epilepsies Rares CRéER, Department of Pediatric Neurology, Necker-Enfants-Malades Hospital, Assistance Publique -Hôpitaux de Paris, Paris, France; Department of Pediatric Neurology, Necker-Enfants-Malades Hospital, Assistance Publique -Hôpitaux de Paris, Paris, France
| | - I Desguerre
- Department of Pediatric Neurology, Necker-Enfants-Malades Hospital, Assistance Publique -Hôpitaux de Paris, Paris, France; Université de Paris, Paris, France
| | - C Gitiaux
- Department of Clinical Neurophysiology, Necker-Enfants-Malades Hospital, Assistance Publique -Hôpitaux de Paris, Paris, France; Department of Pediatric Neurology, Necker-Enfants-Malades Hospital, Assistance Publique -Hôpitaux de Paris, Paris, France; Université de Paris, Paris, France
| | - M Hully
- Department of Pediatric Neurology, Necker-Enfants-Malades Hospital, Assistance Publique -Hôpitaux de Paris, Paris, France
| | - M Bourgeois
- Department of Pediatric Neurosurgery, Necker-Enfants-Malades Hospital, Assistance Publique -Hôpitaux de Paris, Paris, France
| | - A Guimier
- Department of Genetics, Necker-Enfants Malades Hospital, Assistance Publique -Hôpitaux de Paris, Paris, France
| | - M Rio
- Department of Genetics, Necker-Enfants Malades Hospital, Assistance Publique -Hôpitaux de Paris, Paris, France
| | - A Munnich
- Université de Paris, Paris, France; Department of Genetics, Necker-Enfants Malades Hospital, Assistance Publique -Hôpitaux de Paris, Paris, France
| | - R Nabbout
- Centre de Référence des Epilepsies Rares CRéER, Department of Pediatric Neurology, Necker-Enfants-Malades Hospital, Assistance Publique -Hôpitaux de Paris, Paris, France; Department of Pediatric Neurology, Necker-Enfants-Malades Hospital, Assistance Publique -Hôpitaux de Paris, Paris, France; Université de Paris, Paris, France
| | - A Kaminska
- Department of Clinical Neurophysiology, Necker-Enfants-Malades Hospital, Assistance Publique -Hôpitaux de Paris, Paris, France; Université de Paris, Paris, France
| | - M Eisermann
- Department of Clinical Neurophysiology, Necker-Enfants-Malades Hospital, Assistance Publique -Hôpitaux de Paris, Paris, France; Université de Paris, Paris, France
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Rose L, Dilasser F, Rio M, Guignabert C, Loirand G, Sauzeau V. Role of smooth muscle Rac1 in the vascular remodeling associated with pulmonary hypertension. Archives of Cardiovascular Diseases Supplements 2020. [DOI: 10.1016/j.acvdsp.2020.03.037] [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: 11/28/2022]
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15
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Barbosa S, Greville-Heygate S, Bonnet M, Godwin A, Fagotto-Kaufmann C, Kajava AV, Laouteouet D, Mawby R, Wai HA, Dingemans AJ, Hehir-Kwa J, Willems M, Capri Y, Mehta SG, Cox H, Goudie D, Vansenne F, Turnpenny P, Vincent M, Cogné B, Lesca G, Hertecant J, Rodriguez D, Keren B, Burglen L, Gérard M, Putoux A, Cantagrel V, Siquier-Pernet K, Rio M, Banka S, Sarkar A, Steeves M, Parker M, Clement E, Moutton S, Tran Mau-Them F, Piton A, de Vries BB, Guille M, Debant A, Schmidt S, Baralle D, Baralle D. Opposite Modulation of RAC1 by Mutations in TRIO Is Associated with Distinct, Domain-Specific Neurodevelopmental Disorders. Am J Hum Genet 2020; 106:338-355. [PMID: 32109419 PMCID: PMC7058823 DOI: 10.1016/j.ajhg.2020.01.018] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [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: 10/11/2019] [Accepted: 01/27/2020] [Indexed: 12/13/2022] Open
Abstract
The Rho-guanine nucleotide exchange factor (RhoGEF) TRIO acts as a key regulator of neuronal migration, axonal outgrowth, axon guidance, and synaptogenesis by activating the GTPase RAC1 and modulating actin cytoskeleton remodeling. Pathogenic variants in TRIO are associated with neurodevelopmental diseases, including intellectual disability (ID) and autism spectrum disorders (ASD). Here, we report the largest international cohort of 24 individuals with confirmed pathogenic missense or nonsense variants in TRIO. The nonsense mutations are spread along the TRIO sequence, and affected individuals show variable neurodevelopmental phenotypes. In contrast, missense variants cluster into two mutational hotspots in the TRIO sequence, one in the seventh spectrin repeat and one in the RAC1-activating GEFD1. Although all individuals in this cohort present with developmental delay and a neuro-behavioral phenotype, individuals with a pathogenic variant in the seventh spectrin repeat have a more severe ID associated with macrocephaly than do most individuals with GEFD1 variants, who display milder ID and microcephaly. Functional studies show that the spectrin and GEFD1 variants cause a TRIO-mediated hyper- or hypo-activation of RAC1, respectively, and we observe a striking correlation between RAC1 activation levels and the head size of the affected individuals. In addition, truncations in TRIO GEFD1 in the vertebrate model X. tropicalis induce defects that are concordant with the human phenotype. This work demonstrates distinct clinical and molecular disorders clustering in the GEFD1 and seventh spectrin repeat domains and highlights the importance of tight control of TRIO-RAC1 signaling in neuronal development.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Diana Baralle
- Wessex Clinical Genetics, University Hospital Southampton National Health Service Foundation Trust, Southampton SO16 5YA, UK; Human Development and Health, Faculty of Medicine, University of Southampton, Southampton SO16 6YD, UK.
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16
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Lebigot E, Hully M, Amazit L, Gaignard P, Michel T, Rio M, Lombès M, Thérond P, Boutron A, Golinelli-Cohen MP. Expanding the phenotype of mitochondrial disease: Novel pathogenic variant in ISCA1 leading to instability of the iron-sulfur cluster in the protein. Mitochondrion 2020; 52:75-82. [PMID: 32092383 DOI: 10.1016/j.mito.2020.02.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [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: 11/08/2019] [Revised: 01/31/2020] [Accepted: 02/19/2020] [Indexed: 11/20/2022]
Abstract
We report a patient carrying a novel pathogenic variant p.(Tyr101Cys) in ISCA1 leading to MMDS type 5. He initially presented a psychomotor regression with loss of gait and language skills and a tetrapyramidal spastic syndrome. Biochemical analysis of patient fibroblasts revealed impaired lipoic acid synthesis and decreased activities of complex I and II of respiratory chain. While ISCA1 is involved in the mitochondrial machinery for iron-sulfur cluster biogenesis, these dysfunctions are secondary to impaired maturation of mitochondrial proteins containing the [4Fe-4S] clusters. Expression and purification of the human ISCA1 showed a decreased stability of the [2Fe-2S] cluster in the mutated protein.
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Affiliation(s)
- E Lebigot
- Biochemistry Department, Hôpital Bicêtre, APHP Université Paris-Saclay, Le Kremlin Bicêtre F-94275, France; Université Paris-Saclay, CNRS, Institut de Chimie des Substances Naturelles, UPR 2301, 91198 Gif-sur-Yvette, France.
| | - M Hully
- Pediatric Neurology Department, Hôpital Necker Enfants Malades, Institut Imagine, APHP Centre - Université de Paris, Paris F-75015, France
| | - L Amazit
- Institut National de la Santé et de la Recherche Médicale Unité 1185, Unité Mixte de Recherche Faculté de Médecine Paris-Sud, Université Paris-Sud, Université Paris Saclay, Le Kremlin Bicêtre F-94276, France; Unité mixte de Service 32, Institut Biomédical de Bicêtre, Le Kremlin-Bicêtre F-94276, France
| | - P Gaignard
- Biochemistry Department, Hôpital Bicêtre, APHP Université Paris-Saclay, Le Kremlin Bicêtre F-94275, France
| | - T Michel
- Université Paris-Saclay, CNRS, Institut de Chimie des Substances Naturelles, UPR 2301, 91198 Gif-sur-Yvette, France
| | - M Rio
- Genetic Department, Hôpital Necker Enfants Malades, Institut Imagine, APHP Centre - Université de Paris, Paris F-75015, France
| | - M Lombès
- Institut National de la Santé et de la Recherche Médicale Unité 1185, Unité Mixte de Recherche Faculté de Médecine Paris-Sud, Université Paris-Sud, Université Paris Saclay, Le Kremlin Bicêtre F-94276, France
| | - P Thérond
- Biochemistry Department, Hôpital Bicêtre, APHP Université Paris-Saclay, Le Kremlin Bicêtre F-94275, France
| | - A Boutron
- Biochemistry Department, Hôpital Bicêtre, APHP Université Paris-Saclay, Le Kremlin Bicêtre F-94275, France
| | - M P Golinelli-Cohen
- Université Paris-Saclay, CNRS, Institut de Chimie des Substances Naturelles, UPR 2301, 91198 Gif-sur-Yvette, France
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17
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Alby C, Boutaud L, Bessières B, Serre V, Rio M, Cormier-Daire V, de Oliveira J, Ichkou A, Mouthon L, Gordon CT, Bonnière M, Mechler C, Nitschke P, Bole C, Lyonnet S, Bahi-Buisson N, Boddaert N, Colleaux L, Roth P, Ville Y, Vekemans M, Encha-Razavi F, Attié-Bitach T, Thomas S. Novel de novo ZBTB20 mutations in three cases with Primrose syndrome and constant corpus callosum anomalies. Am J Med Genet A 2019; 176:1091-1098. [PMID: 29681083 DOI: 10.1002/ajmg.a.38684] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2017] [Revised: 02/16/2018] [Accepted: 02/25/2018] [Indexed: 11/06/2022]
Abstract
Corpus callosum (CC) is the major brain commissure connecting homologous areas of cerebral hemispheres. CC anomalies (CCAs) are the most frequent brain anomalies leading to variable neurodevelopmental outcomes making genetic counseling difficult in the absence of a known etiology that might inform the prognosis. Here, we used whole exome sequencing, and a targeted capture panel of syndromic CCA known causal and candidate genes to screen a cohort of 64 fetuses with CCA observed upon autopsy, and 34 children with CCA and intellectual disability. In one fetus and two patients, we identified three novel de novo mutations in ZBTB20, which was previously shown to be causal in Primrose syndrome. In addition to CCA, all cases presented with additional features of Primrose syndrome including facial dysmorphism and macrocephaly or megalencephaly. All three variations occurred within two out of the five zinc finger domains of the transcriptional repressor ZBTB20. Through homology modeling, these variants are predicted to result in local destabilization of each zinc finger domain suggesting subsequent abnormal repression of ZBTB20 target genes. Neurohistopathological analysis of the fetal case showed abnormal regionalization of the hippocampal formation as well as a reduced density of cortical upper layers where originate most callosal projections. Here, we report novel de novo ZBTB20 mutations in three independent cases with characteristic features of Primrose syndrome including constant CCA. Neurohistopathological findings in fetal case corroborate the observed key role of ZBTB20 during hippocampal and neocortical development. Finally, this study highlights the crucial role of ZBTB20 in CC development in human.
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Affiliation(s)
- Caroline Alby
- Laboratory of Embryology and Genetics of Congenital Malformations, INSERM UMR1163 Institut Imagine, Paris, France.,Paris Descartes Sorbonne Paris Cité, Paris, France.,Department of genetics, Hospital Necker-Enfants Malades Assistance Publique Hôpitaux de Paris (AP-HP), Paris, France
| | - Lucile Boutaud
- Laboratory of Embryology and Genetics of Congenital Malformations, INSERM UMR1163 Institut Imagine, Paris, France.,Paris Descartes Sorbonne Paris Cité, Paris, France.,Department of genetics, Hospital Necker-Enfants Malades Assistance Publique Hôpitaux de Paris (AP-HP), Paris, France
| | - Bettina Bessières
- Department of genetics, Hospital Necker-Enfants Malades Assistance Publique Hôpitaux de Paris (AP-HP), Paris, France
| | - Valérie Serre
- UMR7592 CNRS Jacques Monod Institute Paris Diderot University, Paris, France
| | - Marlene Rio
- Department of genetics, Hospital Necker-Enfants Malades Assistance Publique Hôpitaux de Paris (AP-HP), Paris, France
| | - Valerie Cormier-Daire
- Paris Descartes Sorbonne Paris Cité, Paris, France.,Department of genetics, Hospital Necker-Enfants Malades Assistance Publique Hôpitaux de Paris (AP-HP), Paris, France.,Laboratory of Molecular and Physiopathological Bases of Osteochondrodysplasia, INSERM UMR1163 Institut Imagine, Paris, France
| | - Judith de Oliveira
- Laboratory of Embryology and Genetics of Congenital Malformations, INSERM UMR1163 Institut Imagine, Paris, France.,Department of genetics, Hospital Necker-Enfants Malades Assistance Publique Hôpitaux de Paris (AP-HP), Paris, France
| | - Amale Ichkou
- Department of genetics, Hospital Necker-Enfants Malades Assistance Publique Hôpitaux de Paris (AP-HP), Paris, France
| | - Linda Mouthon
- Department of genetics, Hospital Necker-Enfants Malades Assistance Publique Hôpitaux de Paris (AP-HP), Paris, France
| | - Christopher T Gordon
- Laboratory of Embryology and Genetics of Congenital Malformations, INSERM UMR1163 Institut Imagine, Paris, France.,Paris Descartes Sorbonne Paris Cité, Paris, France.,Department of genetics, Hospital Necker-Enfants Malades Assistance Publique Hôpitaux de Paris (AP-HP), Paris, France
| | - Maryse Bonnière
- Department of genetics, Hospital Necker-Enfants Malades Assistance Publique Hôpitaux de Paris (AP-HP), Paris, France
| | - Charlotte Mechler
- Department of genetics, Hospital Necker-Enfants Malades Assistance Publique Hôpitaux de Paris (AP-HP), Paris, France
| | - Patrick Nitschke
- Paris Descartes Sorbonne Paris Cité, Paris, France.,Bioinformatics Core Facility Paris-Descartes Sorbonne Paris Cité University Institut Imagine, Paris, France
| | - Christine Bole
- Paris Descartes Sorbonne Paris Cité, Paris, France.,Genomics Core Facility, Paris Descartes-Sorbonne Paris Cité University Institut Imagine, Paris, France
| | - Stanislas Lyonnet
- Laboratory of Embryology and Genetics of Congenital Malformations, INSERM UMR1163 Institut Imagine, Paris, France.,Paris Descartes Sorbonne Paris Cité, Paris, France.,Department of genetics, Hospital Necker-Enfants Malades Assistance Publique Hôpitaux de Paris (AP-HP), Paris, France
| | - Nadia Bahi-Buisson
- Laboratory of Embryology and Genetics of Congenital Malformations, INSERM UMR1163 Institut Imagine, Paris, France.,Paris Descartes Sorbonne Paris Cité, Paris, France.,Department of genetics, Hospital Necker-Enfants Malades Assistance Publique Hôpitaux de Paris (AP-HP), Paris, France
| | - Nathalie Boddaert
- Paris Descartes Sorbonne Paris Cité, Paris, France.,Department of genetics, Hospital Necker-Enfants Malades Assistance Publique Hôpitaux de Paris (AP-HP), Paris, France.,Department of Pediatric Radiology, Hospital Necker-Enfants Malades AP-HP, Paris, France
| | - Laurence Colleaux
- Paris Descartes Sorbonne Paris Cité, Paris, France.,Laboratory of Molecular and Pathophysiological Bases of Cognitive Disorders, INSERM UMR1163 Institut Imagine, Paris, France
| | - Philippe Roth
- Department of Obstetrics and Fetal Medicine, Hospital Necker-Enfants-Malade APHP, Paris, France
| | - Yves Ville
- Department of Obstetrics and Fetal Medicine, Hospital Necker-Enfants-Malade APHP, Paris, France
| | - Michel Vekemans
- Laboratory of Embryology and Genetics of Congenital Malformations, INSERM UMR1163 Institut Imagine, Paris, France.,Paris Descartes Sorbonne Paris Cité, Paris, France.,Department of genetics, Hospital Necker-Enfants Malades Assistance Publique Hôpitaux de Paris (AP-HP), Paris, France
| | - Féréchté Encha-Razavi
- Laboratory of Embryology and Genetics of Congenital Malformations, INSERM UMR1163 Institut Imagine, Paris, France.,Paris Descartes Sorbonne Paris Cité, Paris, France.,Department of genetics, Hospital Necker-Enfants Malades Assistance Publique Hôpitaux de Paris (AP-HP), Paris, France
| | - Tania Attié-Bitach
- Laboratory of Embryology and Genetics of Congenital Malformations, INSERM UMR1163 Institut Imagine, Paris, France.,Paris Descartes Sorbonne Paris Cité, Paris, France.,Department of genetics, Hospital Necker-Enfants Malades Assistance Publique Hôpitaux de Paris (AP-HP), Paris, France
| | - Sophie Thomas
- Laboratory of Embryology and Genetics of Congenital Malformations, INSERM UMR1163 Institut Imagine, Paris, France.,Paris Descartes Sorbonne Paris Cité, Paris, France
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18
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Raible SE, Mehta D, Bettale C, Fiordaliso S, Kaur M, Medne L, Rio M, Haan E, White SM, Cusmano-Ozog K, Nishi E, Guo Y, Wu H, Shi X, Zhao Q, Zhang X, Lei Q, Lu A, He X, Okamoto N, Miyake N, Piccione J, Allen J, Matsumoto N, Pipan M, Krantz ID, Izumi K. Clinical and molecular spectrum of CHOPS syndrome. Am J Med Genet A 2019; 179:1126-1138. [PMID: 31058441 DOI: 10.1002/ajmg.a.61174] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [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: 12/27/2018] [Revised: 02/24/2019] [Accepted: 03/30/2019] [Indexed: 11/07/2022]
Abstract
CHOPS syndrome is a multisystem disorder caused by missense mutations in AFF4. Previously, we reported three individuals whose primary phenotype included cognitive impairment and coarse facies, heart defects, obesity, pulmonary involvement, and short stature. This syndrome overlaps phenotypically with Cornelia de Lange syndrome, but presents distinct differences including facial features, pulmonary involvement, and obesity. Here, we provide clinical descriptions of an additional eight individuals with CHOPS syndrome, as well as neurocognitive analysis of three individuals. All 11 individuals presented with features reminiscent of Cornelia de Lange syndrome such as synophrys, upturned nasal tip, arched eyebrows, and long eyelashes. All 11 individuals had short stature and obesity. Congenital heart disease and pulmonary involvement were common, and those were seen in about 70% of individuals with CHOPS syndrome. Skeletal abnormalities are also common, and those include abnormal shape of vertebral bodies, hypoplastic long bones, and low bone mineral density. Our observation indicates that obesity, pulmonary involvement, skeletal findings are the most notable features distinguishing CHOPS syndrome from Cornelia de Lange syndrome. In fact, two out of eight of our newly identified patients were found to have AFF4 mutations by targeted AFF4 mutational analysis rather than exome sequencing. These phenotypic findings establish CHOPS syndrome as a distinct, clinically recognizable disorder. Additionally, we report three novel missense mutations causative for CHOPS syndrome that lie within the highly conserved, 14 amino acid sequence of the ALF homology domain of the AFF4 gene, emphasizing the critical functional role of this region in human development.
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Affiliation(s)
- Sarah E Raible
- Division of Human Genetics, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania.,Roberts Individualized Medical Genetics Center (RIMGC), The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Devanshi Mehta
- Division of Human Genetics, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Chiara Bettale
- Division of Human Genetics, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Sarah Fiordaliso
- Division of Human Genetics, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Maninder Kaur
- Division of Human Genetics, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania.,Roberts Individualized Medical Genetics Center (RIMGC), The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Livija Medne
- Division of Human Genetics, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania.,Roberts Individualized Medical Genetics Center (RIMGC), The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Marlene Rio
- Department of Genetics, Hôpital Necker-Enfants Malades, AP-HP, Paris, France
| | - Eric Haan
- Australia and Faculty of Health and Medical Sciences, Adult Genetics Unit, Royal Adelaide Hospital, University of Adelaide, Adelaide, South Australia, Australia
| | - Susan M White
- Department of Paediatrics, Victorian Clinical Genetics Services, Murdoch Children's Research Institute, Royal Children's Hospital, University of Melbourne, Melbourne, Australia
| | - Kristina Cusmano-Ozog
- Rare Disease Institute, Children's National Health System, Washington, District of Columbia
| | - Eriko Nishi
- Department of Medical Genetics, Osaka Women's and Children's Hospital, Osaka, Japan
| | - Yiran Guo
- Center for Data Driven Discovery in Biomedicine, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Honglin Wu
- Department of Pediatrics, The 307 Hospital, Beijing, China
| | - Xiaoqing Shi
- Department of Pediatrics, The 307 Hospital, Beijing, China
| | - Qingjie Zhao
- Department of Pediatrics, The 307 Hospital, Beijing, China
| | - Xueqin Zhang
- Department of Pediatrics, The 307 Hospital, Beijing, China
| | - Qi Lei
- Department of Pediatrics, The 307 Hospital, Beijing, China
| | - Aimei Lu
- Department of Pediatrics, The 307 Hospital, Beijing, China
| | - Xiyu He
- Department of Pediatrics, The 307 Hospital, Beijing, China
| | - Nobuhiko Okamoto
- Department of Medical Genetics, Osaka Women's and Children's Hospital, Osaka, Japan
| | - Noriko Miyake
- Department of Human Genetics, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Joseph Piccione
- Division of Pulmonary Medicine and Center for Pediatric Airway Disorders, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania.,Department of Pediatrics, The Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Julian Allen
- Division of Pulmonary Medicine and Center for Pediatric Airway Disorders, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania.,Department of Pediatrics, The Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Naomichi Matsumoto
- Department of Medical Genetics, Osaka Women's and Children's Hospital, Osaka, Japan
| | - Mary Pipan
- Department of Pediatrics, The Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania.,Developmental Behavioral Pediatrics, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Ian D Krantz
- Division of Human Genetics, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania.,Roberts Individualized Medical Genetics Center (RIMGC), The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania.,Department of Pediatrics, The Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Kosuke Izumi
- Division of Human Genetics, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania.,Roberts Individualized Medical Genetics Center (RIMGC), The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania.,Department of Pediatrics, The Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
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19
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Hiatt SM, Neu MB, Ramaker RC, Hardigan AA, Prokop JW, Hancarova M, Prchalova D, Havlovicova M, Prchal J, Stranecky V, Yim DKC, Powis Z, Keren B, Nava C, Mignot C, Rio M, Revah-Politi A, Hemati P, Stong N, Iglesias AD, Suchy SF, Willaert R, Wentzensen IM, Wheeler PG, Brick L, Kozenko M, Hurst ACE, Wheless JW, Lacassie Y, Myers RM, Barsh GS, Sedlacek Z, Cooper GM. De novo mutations in the GTP/GDP-binding region of RALA, a RAS-like small GTPase, cause intellectual disability and developmental delay. PLoS Genet 2018; 14:e1007671. [PMID: 30500825 PMCID: PMC6291162 DOI: 10.1371/journal.pgen.1007671] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Revised: 12/12/2018] [Accepted: 08/30/2018] [Indexed: 01/22/2023] Open
Abstract
Mutations that alter signaling of RAS/MAPK-family proteins give rise to a group of Mendelian diseases known as RASopathies. However, among RASopathies, the matrix of genotype-phenotype relationships is still incomplete, in part because there are many RAS-related proteins and in part because the phenotypic consequences may be variable and/or pleiotropic. Here, we describe a cohort of ten cases, drawn from six clinical sites and over 16,000 sequenced probands, with de novo protein-altering variation in RALA, a RAS-like small GTPase. All probands present with speech and motor delays, and most have intellectual disability, low weight, short stature, and facial dysmorphism. The observed rate of de novo RALA variants in affected probands is significantly higher (p = 4.93 x 10−11) than expected from the estimated random mutation rate. Further, all de novo variants described here affect residues within the GTP/GDP-binding region of RALA; in fact, six alleles arose at only two codons, Val25 and Lys128. The affected residues are highly conserved across both RAL- and RAS-family genes, are devoid of variation in large human population datasets, and several are homologous to positions at which disease-associated variants have been observed in other GTPase genes. We directly assayed GTP hydrolysis and RALA effector-protein binding of the observed variants, and found that all but one tested variant significantly reduced both activities compared to wild-type. The one exception, S157A, reduced GTP hydrolysis but significantly increased RALA-effector binding, an observation similar to that seen for oncogenic RAS variants. These results show the power of data sharing for the interpretation and analysis of rare variation, expand the spectrum of molecular causes of developmental disability to include RALA, and provide additional insight into the pathogenesis of human disease caused by mutations in small GTPases. While many causes of developmental disabilities have been identified, a large number of affected children cannot be diagnosed despite extensive medical testing. Previously unknown genetic factors are likely to be the culprits in many of these cases. Using DNA sequencing, and by sharing information among many doctors and researchers, we have identified a set of individuals with developmental problems who all have changes to the same gene, RALA. The affected individuals all have similar symptoms, including intellectual disability, speech delay (or no speech), and problems with motor skills like walking. In nearly all of these cases (10 of 11), the genetic change found in the child was not inherited from either parent. The locations and biological properties of these changes suggest that they are likely to disrupt the normal functions of RALA. Functional experiments also show that the genetic changes found in these individuals alter two key functions of RALA. Together, we have provided evidence that genetic changes in RALA can cause developmental disabilities. These results will allow doctors and researchers to identify additional children with the same condition, providing a clinical diagnosis to these families and leading to new research opportunities.
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Affiliation(s)
- Susan M. Hiatt
- HudsonAlpha Institute for Biotechnology, Huntsville, AL, United States of America
| | - Matthew B. Neu
- HudsonAlpha Institute for Biotechnology, Huntsville, AL, United States of America
- Department of Genetics, University of Alabama at Birmingham, Birmingham, AL, United States of America
| | - Ryne C. Ramaker
- HudsonAlpha Institute for Biotechnology, Huntsville, AL, United States of America
- Department of Genetics, University of Alabama at Birmingham, Birmingham, AL, United States of America
| | - Andrew A. Hardigan
- HudsonAlpha Institute for Biotechnology, Huntsville, AL, United States of America
- Department of Genetics, University of Alabama at Birmingham, Birmingham, AL, United States of America
| | - Jeremy W. Prokop
- Department of Pediatrics and Human Development, Michigan State University, East Lansing, MI, United States of America
| | - Miroslava Hancarova
- Department of Biology and Medical Genetics, Charles University 2nd Faculty of Medicine and University Hospital Motol, Prague, Czech Republic
| | - Darina Prchalova
- Department of Biology and Medical Genetics, Charles University 2nd Faculty of Medicine and University Hospital Motol, Prague, Czech Republic
| | - Marketa Havlovicova
- Department of Biology and Medical Genetics, Charles University 2nd Faculty of Medicine and University Hospital Motol, Prague, Czech Republic
| | - Jan Prchal
- Laboratory of NMR Spectroscopy, University of Chemistry and Technology, Prague, Czech Republic
| | - Viktor Stranecky
- Department of Pediatrics and Adolescent Medicine, Diagnostic and Research Unit for Rare Diseases, Charles University 1st Faculty of Medicine and General University Hospital, Prague, Czech Republic
| | - Dwight K. C. Yim
- Kaiser Permanente-Hawaii, Honolulu, HI, United States of America
| | - Zöe Powis
- Department of Emerging Genetic Medicine, Ambry Genetics, Aliso Viejo, CA, United States of America
| | - Boris Keren
- Department of Genetics, La Pitié-Salpêtrière Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Caroline Nava
- Department of Genetics, La Pitié-Salpêtrière Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Cyril Mignot
- Department of Genetics, La Pitié-Salpêtrière Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France
- Centre de Référence Déficiences Intellectuelles de Causes Rares, Paris, France
- Groupe de Recherche Clinique UPMC "Déficience Intellectuelle et Autisme", Paris, France
| | - Marlene Rio
- Centre de Référence Déficiences Intellectuelles de Causes Rares, Paris, France
- Assistance Publique-Hôpitaux de Paris, service de Génétique, Hôpital Necker-Enfants-Malades, Paris, France
| | - Anya Revah-Politi
- Institute for Genomic Medicine, Columbia University Medical Center, New York, NY, United States of America
| | - Parisa Hemati
- Institute for Genomic Medicine, Columbia University Medical Center, New York, NY, United States of America
| | - Nicholas Stong
- Institute for Genomic Medicine, Columbia University Medical Center, New York, NY, United States of America
| | - Alejandro D. Iglesias
- Division of Clinical Genetics, Department of Pediatrics, Columbia University Medical Center, New York, NY, United States of America
| | | | | | | | - Patricia G. Wheeler
- Arnold Palmer Hospital, Division of Genetics, Orlando, FL, United States of America
| | - Lauren Brick
- Department of Genetics, McMaster Children's Hospital, Hamilton, Ontario, Canada
| | - Mariya Kozenko
- Department of Genetics, McMaster Children's Hospital, Hamilton, Ontario, Canada
| | - Anna C. E. Hurst
- Department of Genetics, University of Alabama at Birmingham, Birmingham, AL, United States of America
| | - James W. Wheless
- Division of Pediatric Neurology, University of Tennessee Health Science Center, Neuroscience Institute & Le Bonheur Comprehensive Epilepsy Program, Memphis, TN, United States of America
- Le Bonheur Children’s Hospital, Memphis, TN, United States of America
| | - Yves Lacassie
- Division of Clinical Genetics, Louisiana State University Health Sciences Center, New Orleans, LA, United States of America
- Department of Genetics, Children's Hospital, New Orleans, LA, United States of America
| | - Richard M. Myers
- HudsonAlpha Institute for Biotechnology, Huntsville, AL, United States of America
| | - Gregory S. Barsh
- HudsonAlpha Institute for Biotechnology, Huntsville, AL, United States of America
| | - Zdenek Sedlacek
- Department of Biology and Medical Genetics, Charles University 2nd Faculty of Medicine and University Hospital Motol, Prague, Czech Republic
| | - Gregory M. Cooper
- HudsonAlpha Institute for Biotechnology, Huntsville, AL, United States of America
- * E-mail:
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20
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Boisgontier J, Tacchella JM, Lemaître H, Lehman N, Saitovitch A, Gatinois V, Boursier G, Sanchez E, Rechtman E, Fillon L, Lyonnet S, Le Quang Sang KH, Baujat G, Rio M, Boute O, Faivre L, Schaefer E, Sanlaville D, Zilbovicius M, Grévent D, Geneviève D, Boddaert N. Anatomical and functional abnormalities on MRI in kabuki syndrome. Neuroimage Clin 2018; 21:101610. [PMID: 30497982 PMCID: PMC6413468 DOI: 10.1016/j.nicl.2018.11.020] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Revised: 11/16/2018] [Accepted: 11/18/2018] [Indexed: 01/12/2023]
Abstract
Kabuki syndrome (KS) is a rare congenital disorder (1/32000 births) characterized by distinctive facial features, intellectual disability, short stature, and dermatoglyphic and skeletal abnormalities. In the last decade, mutations in KMT2D and KDM6A were identified as a major cause of kabuki syndrome. Although genetic abnormalities have been highlighted in KS, brain abnormalities have been little explored. Here, we have investigated brain abnormalities in 6 patients with KS (4 males; Mage = 10.96 years, SD = 2.97 years) with KMT2D mutation in comparison with 26 healthy controls (17 males; Mage = 10.31 years, SD = 2.96 years). We have used MRI to explore anatomical and functional brain abnormalities in patients with KS. Anatomical abnormalities in grey matter volume were assessed by cortical and subcortical analyses. Functional abnormalities were assessed by comparing rest cerebral blood flow measured with arterial spin labeling-MRI. When compared to healthy controls, KS patients had anatomical alterations characterized by grey matter decrease localized in the bilateral precentral gyrus and middle frontal gyrus. In addition, KS patients also presented functional alterations characterized by cerebral blood flow decrease in the left precentral gyrus and middle frontal gyrus. Moreover, subcortical analyses revealed significantly decreased grey matter volume in the bilateral hippocampus and dentate gyrus in patients with KS. Our results strongly indicate anatomical and functional brain abnormalities in KS. They suggest a possible neural basis of the cognitive symptoms observed in KS, such as fine motor impairment, and indicate the need to further explore the consequences of such brain abnormalities in this disorder. Finally, our results encourage further imaging-genetics studies investigating the link between genetics, anatomical and functional brain alterations in KS.
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Affiliation(s)
- Jennifer Boisgontier
- Service de radiologie pédiatrique, Hôpital Necker Enfants Malades, INSERM U1000, AP-HP, Université René Descartes, Pres Sorbonne Paris Cité, Institut Imagine, UMR 1163, France.
| | - Jean Marc Tacchella
- Service de radiologie pédiatrique, Hôpital Necker Enfants Malades, INSERM U1000, AP-HP, Université René Descartes, Pres Sorbonne Paris Cité, Institut Imagine, UMR 1163, France
| | - Hervé Lemaître
- Service de radiologie pédiatrique, Hôpital Necker Enfants Malades, INSERM U1000, AP-HP, Université René Descartes, Pres Sorbonne Paris Cité, Institut Imagine, UMR 1163, France; Faculté de Médecine, Université Paris Sud, France
| | - Natacha Lehman
- Département de Génétique Médicale, maladies Rares et Médecine Personnalisée, génétique clinique, CHU Montpellier, Université Montpellier, Centre de référence anomalies du développement SORO, INSERM U1183, Montpellier, France
| | - Ana Saitovitch
- Service de radiologie pédiatrique, Hôpital Necker Enfants Malades, INSERM U1000, AP-HP, Université René Descartes, Pres Sorbonne Paris Cité, Institut Imagine, UMR 1163, France
| | - Vincent Gatinois
- Département de Génétique Médicale, maladies Rares et Médecine Personnalisée, génétique clinique, CHU Montpellier, Université Montpellier, Centre de référence anomalies du développement SORO, INSERM U1183, Montpellier, France
| | - Guilaine Boursier
- Département de Génétique Médicale, maladies Rares et Médecine Personnalisée, génétique clinique, CHU Montpellier, Université Montpellier, Centre de référence anomalies du développement SORO, INSERM U1183, Montpellier, France
| | - Elodie Sanchez
- Département de Génétique Médicale, maladies Rares et Médecine Personnalisée, génétique clinique, CHU Montpellier, Université Montpellier, Centre de référence anomalies du développement SORO, INSERM U1183, Montpellier, France
| | - Elza Rechtman
- Service de radiologie pédiatrique, Hôpital Necker Enfants Malades, INSERM U1000, AP-HP, Université René Descartes, Pres Sorbonne Paris Cité, Institut Imagine, UMR 1163, France
| | - Ludovic Fillon
- Service de radiologie pédiatrique, Hôpital Necker Enfants Malades, INSERM U1000, AP-HP, Université René Descartes, Pres Sorbonne Paris Cité, Institut Imagine, UMR 1163, France
| | - Stanislas Lyonnet
- Service de Génétique Médicale, Institut IMAGINE, AP-HP Necker Enfants Malades, France
| | | | - Genevieve Baujat
- Service de Génétique Médicale, Institut IMAGINE, AP-HP Necker Enfants Malades, France
| | - Marlene Rio
- Service de Génétique Médicale, Institut IMAGINE, AP-HP Necker Enfants Malades, France
| | - Odile Boute
- Service de génétique Clinique, Hôpital Jeanne de Flandre, France
| | - Laurence Faivre
- Service de génétique médicale, Centre de référence anomalies du développement, Fédération Hospitalo-Universitaire Médecine Translationnelle et Anomalies Du Développement (TRANSLAD), Centre Hospitalier Universitaire Dijon, Dijon, France
| | - Elise Schaefer
- Service de génétique médicale, Institut de Génétique Médicale d'Alsace, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - Damien Sanlaville
- Hospices civils de Lyon, Service de génétique, Centre de Recherche en Neurosciences de Lyon, Inserm U1028, UMR CNRS 5292, GENDEV Team, Université Claude Bernard Lyon 1, Lyon, France
| | - Monica Zilbovicius
- Service de radiologie pédiatrique, Hôpital Necker Enfants Malades, INSERM U1000, AP-HP, Université René Descartes, Pres Sorbonne Paris Cité, Institut Imagine, UMR 1163, France
| | - David Grévent
- Service de radiologie pédiatrique, Hôpital Necker Enfants Malades, INSERM U1000, AP-HP, Université René Descartes, Pres Sorbonne Paris Cité, Institut Imagine, UMR 1163, France
| | - David Geneviève
- Département de Génétique Médicale, maladies Rares et Médecine Personnalisée, génétique clinique, CHU Montpellier, Université Montpellier, Centre de référence anomalies du développement SORO, INSERM U1183, Montpellier, France
| | - Nathalie Boddaert
- Service de radiologie pédiatrique, Hôpital Necker Enfants Malades, INSERM U1000, AP-HP, Université René Descartes, Pres Sorbonne Paris Cité, Institut Imagine, UMR 1163, France
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21
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Gardeitchik T, Mohamed M, Ruzzenente B, Karall D, Guerrero-Castillo S, Dalloyaux D, van den Brand M, van Kraaij S, van Asbeck E, Assouline Z, Rio M, de Lonlay P, Scholl-Buergi S, Wolthuis DFGJ, Hoischen A, Rodenburg RJ, Sperl W, Urban Z, Brandt U, Mayr JA, Wong S, de Brouwer APM, Nijtmans L, Munnich A, Rötig A, Wevers RA, Metodiev MD, Morava E. Bi-allelic Mutations in the Mitochondrial Ribosomal Protein MRPS2 Cause Sensorineural Hearing Loss, Hypoglycemia, and Multiple OXPHOS Complex Deficiencies. Am J Hum Genet 2018; 102:685-695. [PMID: 29576219 DOI: 10.1016/j.ajhg.2018.1002.1012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Accepted: 02/19/2018] [Indexed: 05/26/2023] Open
Abstract
Biogenesis of the mitochondrial oxidative phosphorylation system, which produces the bulk of ATP for almost all eukaryotic cells, depends on the translation of 13 mtDNA-encoded polypeptides by mitochondria-specific ribosomes in the mitochondrial matrix. These mitoribosomes are dual-origin ribonucleoprotein complexes, which contain mtDNA-encoded rRNAs and tRNAs and ∼80 nucleus-encoded proteins. An increasing number of gene mutations that impair mitoribosomal function and result in multiple OXPHOS deficiencies are being linked to human mitochondrial diseases. Using exome sequencing in two unrelated subjects presenting with sensorineural hearing impairment, mild developmental delay, hypoglycemia, and a combined OXPHOS deficiency, we identified mutations in the gene encoding the mitochondrial ribosomal protein S2, which has not previously been implicated in disease. Characterization of subjects' fibroblasts revealed a decrease in the steady-state amounts of mutant MRPS2, and this decrease was shown by complexome profiling to prevent the assembly of the small mitoribosomal subunit. In turn, mitochondrial translation was inhibited, resulting in a combined OXPHOS deficiency detectable in subjects' muscle and liver biopsies as well as in cultured skin fibroblasts. Reintroduction of wild-type MRPS2 restored mitochondrial translation and OXPHOS assembly. The combination of lactic acidemia, hypoglycemia, and sensorineural hearing loss, especially in the presence of a combined OXPHOS deficiency, should raise suspicion for a ribosomal-subunit-related mitochondrial defect, and clinical recognition could allow for a targeted diagnostic approach. The identification of MRPS2 as an additional gene related to mitochondrial disease further expands the genetic and phenotypic spectra of OXPHOS deficiencies caused by impaired mitochondrial translation.
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Affiliation(s)
- Thatjana Gardeitchik
- Department of Pediatrics, Radboud University Medical Center, 6500 HB Nijmegen, the Netherlands; Department of Human Genetics, Radboud University Medical Center, 6500 HB Nijmegen, the Netherlands
| | - Miski Mohamed
- Department of Pediatrics, Radboud University Medical Center, 6500 HB Nijmegen, the Netherlands
| | - Benedetta Ruzzenente
- INSERM U1163, Université Paris Descartes-Sorbonne Paris Cité, Institut Imagine, 75015 Paris, France
| | - Daniela Karall
- Clinic for Pediatrics, Inherited Metabolic Disorders, Medical University of Innsbruck, 6020 Innsbruck, Austria
| | - Sergio Guerrero-Castillo
- Department of Pediatrics, Radboud University Medical Center, 6500 HB Nijmegen, the Netherlands; Radboud Center for Mitochondrial Medicine, Department of Pediatrics, Medical Center, 6500 HB Nijmegen, the Netherlands; Translational Metabolic Laboratory, Department of Laboratory Medicine, Radboud University Medical Center, 6500 HB Nijmegen, the Netherlands
| | - Daisy Dalloyaux
- Department of Pediatrics, Radboud University Medical Center, 6500 HB Nijmegen, the Netherlands
| | - Mariël van den Brand
- Department of Pediatrics, Radboud University Medical Center, 6500 HB Nijmegen, the Netherlands; Radboud Center for Mitochondrial Medicine, Department of Pediatrics, Medical Center, 6500 HB Nijmegen, the Netherlands
| | - Sanne van Kraaij
- Department of Pediatrics, Radboud University Medical Center, 6500 HB Nijmegen, the Netherlands; Translational Metabolic Laboratory, Department of Laboratory Medicine, Radboud University Medical Center, 6500 HB Nijmegen, the Netherlands
| | - Ellyze van Asbeck
- Department of Pediatrics, Radboud University Medical Center, 6500 HB Nijmegen, the Netherlands
| | - Zahra Assouline
- Departments of Pediatrics, Neurology, and Genetics, Hôpital Necker-Enfants-Malades, 75015 Paris, France
| | - Marlene Rio
- Departments of Pediatrics, Neurology, and Genetics, Hôpital Necker-Enfants-Malades, 75015 Paris, France
| | - Pascale de Lonlay
- Reference Center for Inherited Metabolic Diseases, Hôpital Necker-Enfants-Malades, Assistance Publique - Hôpitaux de Paris, Université Paris Descartes, Institut Imagine, 75015 Paris, France
| | - Sabine Scholl-Buergi
- Clinic for Pediatrics, Inherited Metabolic Disorders, Medical University of Innsbruck, 6020 Innsbruck, Austria
| | - David F G J Wolthuis
- Department of Pediatrics, Radboud University Medical Center, 6500 HB Nijmegen, the Netherlands
| | - Alexander Hoischen
- Department of Human Genetics, Radboud University Medical Center, 6500 HB Nijmegen, the Netherlands
| | - Richard J Rodenburg
- Radboud Center for Mitochondrial Medicine, Department of Pediatrics, Medical Center, 6500 HB Nijmegen, the Netherlands; Translational Metabolic Laboratory, Department of Laboratory Medicine, Radboud University Medical Center, 6500 HB Nijmegen, the Netherlands
| | - Wolfgang Sperl
- Clinic for Pediatrics, Inherited Metabolic Disorders, Medical University of Innsbruck, 6020 Innsbruck, Austria
| | - Zsolt Urban
- Department of Human Genetics, University of Pittsburgh Graduate School of Public Health, Pittsburgh, PA 15261, USA
| | - Ulrich Brandt
- Department of Pediatrics, Radboud University Medical Center, 6500 HB Nijmegen, the Netherlands; Radboud Center for Mitochondrial Medicine, Department of Pediatrics, Medical Center, 6500 HB Nijmegen, the Netherlands; Translational Metabolic Laboratory, Department of Laboratory Medicine, Radboud University Medical Center, 6500 HB Nijmegen, the Netherlands
| | - Johannes A Mayr
- Department of Pediatrics, Paracelsus Medical University, Salzburg, Austria
| | - Sunnie Wong
- Hayward Genetics Center, Tulane University, LA 70112, USA
| | - Arjan P M de Brouwer
- Department of Human Genetics, Radboud University Medical Center, 6500 HB Nijmegen, the Netherlands; Donders Institute for Brain, Cognition and Behaviour, Medical Center, 6500 HB Nijmegen, the Netherlands
| | - Leo Nijtmans
- Department of Pediatrics, Radboud University Medical Center, 6500 HB Nijmegen, the Netherlands; Radboud Center for Mitochondrial Medicine, Department of Pediatrics, Medical Center, 6500 HB Nijmegen, the Netherlands
| | - Arnold Munnich
- INSERM U1163, Université Paris Descartes-Sorbonne Paris Cité, Institut Imagine, 75015 Paris, France; Departments of Pediatrics, Neurology, and Genetics, Hôpital Necker-Enfants-Malades, 75015 Paris, France
| | - Agnès Rötig
- INSERM U1163, Université Paris Descartes-Sorbonne Paris Cité, Institut Imagine, 75015 Paris, France
| | - Ron A Wevers
- Translational Metabolic Laboratory, Department of Laboratory Medicine, Radboud University Medical Center, 6500 HB Nijmegen, the Netherlands
| | - Metodi D Metodiev
- INSERM U1163, Université Paris Descartes-Sorbonne Paris Cité, Institut Imagine, 75015 Paris, France.
| | - Eva Morava
- Department of Clinical Genomics, Mayo Clinic, Rochester, MN 55905, USA.
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22
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Lake NJ, Webb BD, Stroud DA, Richman TR, Ruzzenente B, Compton AG, Mountford HS, Pulman J, Zangarelli C, Rio M, Boddaert N, Assouline Z, Sherpa MD, Schadt EE, Houten SM, Byrnes J, McCormick EM, Zolkipli-Cunningham Z, Haude K, Zhang Z, Retterer K, Bai R, Calvo SE, Mootha VK, Christodoulou J, Rötig A, Filipovska A, Cristian I, Falk MJ, Metodiev MD, Thorburn DR. Biallelic Mutations in MRPS34 Lead to Instability of the Small Mitoribosomal Subunit and Leigh Syndrome. Am J Hum Genet 2018; 102:713. [PMID: 29625026 DOI: 10.1016/j.ajhg.2018.03.015] [Citation(s) in RCA: 9] [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: 10/17/2022] Open
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23
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Miguet M, Faivre L, Amiel J, Nizon M, Touraine R, Prieur F, Pasquier L, Lefebvre M, Thevenon J, Dubourg C, Julia S, Sarret C, Remerand G, Francannet C, Laffargue F, Boespflug-Tanguy O, David A, Isidor B, Vigneron J, Leheup B, Lambert L, Philippe C, Béri-Dexheimer M, Cuisset JM, Andrieux J, Plessis G, Toutain A, Guibaud L, Cormier-Daire V, Rio M, Bonnefont JP, Echenne B, Journel H, Burglen L, Chantot-Bastaraud S, Bienvenu T, Baumann C, Perrin L, Drunat S, Jouk PS, Dieterich K, Devillard F, Lacombe D, Philip N, Sigaudy S, Moncla A, Missirian C, Badens C, Perreton N, Thauvin-Robinet C, AChro-Puce R, Pedespan JM, Rooryck C, Goizet C, Vincent-Delorme C, Duban-Bedu B, Bahi-Buisson N, Afenjar A, Maincent K, Héron D, Alessandri JL, Martin-Coignard D, Lesca G, Rossi M, Raynaud M, Callier P, Mosca-Boidron AL, Marle N, Coutton C, Satre V, Caignec CL, Malan V, Romana S, Keren B, Tabet AC, Kremer V, Scheidecker S, Vigouroux A, Lackmy-Port-Lis M, Sanlaville D, Till M, Carneiro M, Gilbert-Dussardier B, Willems M, Van Esch H, Portes VD, El Chehadeh S. Further delineation of the MECP2 duplication syndrome phenotype in 59 French male patients, with a particular focus on morphological and neurological features. J Med Genet 2018; 55:359-371. [PMID: 29618507 DOI: 10.1136/jmedgenet-2017-104956] [Citation(s) in RCA: 31] [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: 09/06/2017] [Revised: 02/04/2018] [Accepted: 02/15/2018] [Indexed: 12/22/2022]
Abstract
The Xq28 duplication involving the MECP2 gene (MECP2 duplication) has been mainly described in male patients with severe developmental delay (DD) associated with spasticity, stereotypic movements and recurrent infections. Nevertheless, only a few series have been published. We aimed to better describe the phenotype of this condition, with a focus on morphological and neurological features. Through a national collaborative study, we report a large French series of 59 affected males with interstitial MECP2 duplication. Most of the patients (93%) shared similar facial features, which evolved with age (midface hypoplasia, narrow and prominent nasal bridge, thick lower lip, large prominent ears), thick hair, livedo of the limbs, tapered fingers, small feet and vasomotor troubles. Early hypotonia and global DD were constant, with 21% of patients unable to walk. In patients able to stand, lower limbs weakness and spasticity led to a singular standing habitus: flexion of the knees, broad-based stance with pseudo-ataxic gait. Scoliosis was frequent (53%), such as divergent strabismus (76%) and hypermetropia (54%), stereotypic movements (89%), without obvious social withdrawal and decreased pain sensitivity (78%). Most of the patients did not develop expressive language, 35% saying few words. Epilepsy was frequent (59%), with a mean onset around 7.4 years of age, and often (62%) drug-resistant. Other medical issues were frequent: constipation (78%), and recurrent infections (89%), mainly lung. We delineate the clinical phenotype of MECP2 duplication syndrome in a large series of 59 males. Pulmonary hypertension appeared as a cause of early death in these patients, advocating its screening early in life.
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Affiliation(s)
- Marguerite Miguet
- Service de génétique médicale, Institut de Génétique Médicale d'Alsace (IGMA), Centre de Référence Maladies Rares "Anomalies du développement et syndromes malformatifs", Centre de Référence Maladies Rares "Des déficiences intellectuelles de causes rares", Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, Strasbourg, France
| | - Laurence Faivre
- FHU TRANSLAD, Centre de Référence Maladies Rares «Anomalies du développement et syndromes malformatifs», Centre de Génétique, CHU de Dijon, Dijon, France
| | - Jeanne Amiel
- Service de Génétique Clinique, Hôpital Necker Enfants Malades, APHP, Paris, France
| | - Mathilde Nizon
- Service de Génétique Clinique, Hôpital Necker Enfants Malades, APHP, Paris, France
| | - Renaud Touraine
- Service de Génétique Clinique, CHU de Saint-Etienne, Saint-Etienne, France
| | - Fabienne Prieur
- Service de Génétique Clinique, CHU de Saint-Etienne, Saint-Etienne, France
| | - Laurent Pasquier
- Service de Génétique Clinique, CLAD Ouest, CHU de Rennes, Rennes, France
| | - Mathilde Lefebvre
- FHU TRANSLAD, Centre de Référence Maladies Rares «Anomalies du développement et syndromes malformatifs», Centre de Génétique, CHU de Dijon, Dijon, France
| | - Julien Thevenon
- FHU TRANSLAD, Centre de Référence Maladies Rares «Anomalies du développement et syndromes malformatifs», Centre de Génétique, CHU de Dijon, Dijon, France
| | | | - Sophie Julia
- Service de Génétique Médicale, CHU de Toulouse, Toulouse, France
| | - Catherine Sarret
- Service de Neuropédiatrie, CHU de Clermont-Ferrand, Clermont-Ferrand, France
| | - Ganaëlle Remerand
- Service de Neuropédiatrie, CHU de Clermont-Ferrand, Clermont-Ferrand, France
| | - Christine Francannet
- Service de Génétique Médicale, CHU de Clermont-Ferrand, Clermont-Ferrand, France
| | - Fanny Laffargue
- Service de Génétique Médicale, CHU de Clermont-Ferrand, Clermont-Ferrand, France
| | - Odile Boespflug-Tanguy
- Service de Neuropédiatrie et Maladies Métaboliques, Hôpital Robert Debré, APHP, Paris, France
| | - Albert David
- Service de Génétique Médicale, CHU de Nantes, Nantes, France
| | - Bertrand Isidor
- Service de Génétique Médicale, CHU de Nantes, Nantes, France
| | | | - Bruno Leheup
- Service de Génétique Médicale, CHU de Nancy, Nancy, France
| | | | | | | | | | - Joris Andrieux
- Laboratoire de Génétique Médicale, Hôpital Jeanne de Flandre, CHRU de Lille, Lille, France
| | | | | | - Laurent Guibaud
- Service de Radiologie, Hôpital Femme Mère Enfant, Bron, France
| | | | - Marlene Rio
- Service de Génétique Clinique, Hôpital Necker Enfants Malades, APHP, Paris, France
| | - Jean-Paul Bonnefont
- Laboratoire de Biologie Moléculaire, Hôpital Necker Enfants Malades, APHP, Paris, France
| | - Bernard Echenne
- Service de Neurologie pédiatrique, CHU de Montpellier, Montpellier, France
| | - Hubert Journel
- Service de Génétique, Centre Hospitalier de Vannes, Vannes, France
| | - Lydie Burglen
- Service de Génétique, Hôpital Armand Trousseau, APHP, Paris, France
| | | | - Thierry Bienvenu
- Laboratoire de Génétique Moléculaire, GH Cochin-Broca Hôtel Dieu, APHP, Paris, France
| | - Clarisse Baumann
- Service de Génétique Clinique, Hôpital Robert Debré, APHP, Paris, France
| | - Laurence Perrin
- Service de Génétique Clinique, Hôpital Robert Debré, APHP, Paris, France
| | - Séverine Drunat
- Laboratoire de Biologie Moléculaire, Hôpital Robert Debré, APHP, Paris, France
| | - Pierre-Simon Jouk
- Département de Génétique et Procréation - UMR CNRS 5525 TIMC-IMAG - équipe DYCTIM, CHU Grenoble, Grenoble, France
| | - Klaus Dieterich
- Département de Génétique et Procréation - UMR CNRS 5525 TIMC-IMAG - équipe DYCTIM, CHU Grenoble, Grenoble, France
| | - Françoise Devillard
- Département de Génétique et Procréation - UMR CNRS 5525 TIMC-IMAG - équipe DYCTIM, CHU Grenoble, Grenoble, France
| | - Didier Lacombe
- Université de Bordeaux, Laboratoire MRGM, INSERM U1211 and Service de Génétique Médicale, CHU de Bordeaux, Bordeaux, France
| | - Nicole Philip
- Département de Génétique Médicale, Hôpital de la Timone, Marseille, France
| | - Sabine Sigaudy
- Département de Génétique Médicale, Hôpital de la Timone, Marseille, France
| | - Anne Moncla
- Laboratoire de Génétique Chromosomique, Hôpital de la Timone, Marseille, France
| | - Chantal Missirian
- Laboratoire de Génétique Chromosomique, Hôpital de la Timone, Marseille, France
| | - Catherine Badens
- Laboratoire de Biologie Moléculaire, Hôpital de la Timone, Marseille, France
| | | | - Christel Thauvin-Robinet
- FHU TRANSLAD, Centre de Référence Maladies Rares «Anomalies du développement et syndromes malformatifs», Centre de Génétique, CHU de Dijon, Dijon, France
| | | | | | - Caroline Rooryck
- Université de Bordeaux, Laboratoire MRGM, INSERM U1211 and Service de Génétique Médicale, CHU de Bordeaux, Bordeaux, France
| | - Cyril Goizet
- Université de Bordeaux, Laboratoire MRGM, INSERM U1211 and Service de Génétique Médicale, CHU de Bordeaux, Bordeaux, France
| | | | - Bénédicte Duban-Bedu
- Centre de Génétique Chromosomique, GH de l'Institut Catholique de Lille, Hôpital Saint-Vincent-de-Paul, Lille, France
| | - Nadia Bahi-Buisson
- Service de Neuropédiatrie, Hôpital Necker Enfants Malades, APHP, Paris, France
| | - Alexandra Afenjar
- Département de Génétique Médicale, Centre de Référence "Malformations et maladies congénitales du cervelet", APHP, Hôpital Armand Trousseau, APHP, Paris, France
| | - Kim Maincent
- Département de Génétique Médicale, Centre de Référence "Malformations et maladies congénitales du cervelet", APHP, Hôpital Armand Trousseau, APHP, Paris, France
| | - Delphine Héron
- Service de Génétique Clinique, Hôpital Pitié-Salpêtrière, APHP, Paris, France
| | | | | | - Gaëtan Lesca
- Service de génétique, Hospices Civils de Lyon, Lyon, France.,INSERM U1028, CNRS UMR5292, Centre de Recherche en Neurosciences de Lyon, GENDEV Team, Université Claude Bernard Lyon 1, Lyon, France
| | - Massimiliano Rossi
- Service de génétique, Hospices Civils de Lyon, Lyon, France.,INSERM U1028, CNRS UMR5292, Centre de Recherche en Neurosciences de Lyon, GENDEV Team, Université Claude Bernard Lyon 1, Lyon, France
| | - Martine Raynaud
- Laboratoire de Génétique Moléculaire, CHRU de Tours, Tours, France
| | | | | | - Nathalie Marle
- Laboratoire de Cytogénétique, CHU de Dijon, Dijon, France
| | - Charles Coutton
- Laboratoire de Cytogénétique, CHU de Grenoble, Grenoble, France
| | - Véronique Satre
- Laboratoire de Cytogénétique, CHU de Grenoble, Grenoble, France
| | - Cédric Le Caignec
- Laboratoire de Cytogénétique, CHU de Nantes, Nantes, France.,Sarcomes osseux et remodelage des tissus calcifiés, Université Bretagne Loire, INSERM, UMR1238, Nantes, France
| | - Valérie Malan
- Laboratoire de Cytogénétique, Hôpital Necker Enfants Malades, APHP, Paris, France
| | - Serge Romana
- Laboratoire de Cytogénétique, Hôpital Necker Enfants Malades, APHP, Paris, France
| | - Boris Keren
- Laboratoire de Cytogénétique, Hôpital Pitié-Salpêtrière, APHP, Paris, France
| | - Anne-Claude Tabet
- Laboratoire de Cytogénétique, Hôpital Robert Debré, APHP, Paris, France
| | - Valérie Kremer
- Laboratoire de Cytogénétique, CHU de Strasbourg, Hôpital de Hautepierre, Strasbourg, France
| | - Sophie Scheidecker
- Laboratoire de Cytogénétique, CHU de Strasbourg, Hôpital de Hautepierre, Strasbourg, France
| | | | | | | | - Marianne Till
- Laboratoire de Cytogénétique, CHU de Lyon, Lyon, France
| | - Maryline Carneiro
- Service de Neuropédiatrie, CHU de Lyon, Hôpital Femme-Mère-Enfant, Lyon, France
| | | | | | - Hilde Van Esch
- Laboratory for Genetics of Cognition, Center for Human Genetics, University Hospitals Leuven, Leuven, Belgium
| | - Vincent Des Portes
- Centre de Référence Maladies Rares «Des déficiences intellectuelles de causes rares», HFME, Hospices Civils de Lyon and Université de Lyon, Lyon, France.,Institut des Sciences Cognitives, CNRS UMR 5304, Bron, France
| | - Salima El Chehadeh
- Service de génétique médicale, Institut de Génétique Médicale d'Alsace (IGMA), Centre de Référence Maladies Rares "Anomalies du développement et syndromes malformatifs", Centre de Référence Maladies Rares "Des déficiences intellectuelles de causes rares", Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, Strasbourg, France.,FHU TRANSLAD, Centre de Référence Maladies Rares «Anomalies du développement et syndromes malformatifs», Centre de Génétique, CHU de Dijon, Dijon, France
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24
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Woestelandt L, Novo A, Philippe A, Guyaux N, Rio M, Romano S, Robel L. PDD-NOS, psychotic features and executive function deficits in a boy with proximal 22q11.2 microduplication: Evolution of the psychiatric symptom profile from childhood to adolescence. Eur J Med Genet 2018; 61:280-283. [PMID: 29307791 DOI: 10.1016/j.ejmg.2018.01.003] [Citation(s) in RCA: 2] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Revised: 12/13/2017] [Accepted: 01/01/2018] [Indexed: 10/18/2022]
Abstract
22q11.2 microduplication (22q11.2DupS) is associated with a broad spectrum of phenotypes, including normality. Psychiatric disorders are described in 13% of these patients, including Attention Deficit and Hyperactivity Disorder (ADHD), Intellectual Deficiency (ID), and Autism Spectrum Disorder (ASD), but not schizophrenia. We report changes in the psychiatric symptom profile in the course of development of a young boy with a 22q11.2DupS syndrome, from early childhood to adolescence. The boy's psychiatric presentation was characterized by features of Pervasive Developmental Disorder (PDD), with ADHD in early childhood, a single psychotic episode in mid-infancy, and executive impairment in adolescence. We discuss the importance of an in-depth assessment of cognitive functions in children with22q11.2DupS throughout their development.
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Affiliation(s)
- L Woestelandt
- Department of Child and Adolescent Psychiatry, APHP Hôpital Necker Enfants Malades, Paris, France
| | - A Novo
- Department of Child and Adolescent Psychiatry, APHP Hôpital Necker Enfants Malades, Paris, France
| | - A Philippe
- Paris Descartes University, Sorbonne Paris-Cité, Institut Imagine, UMR 1163, France
| | - N Guyaux
- Department of Child and Adolescent Psychiatry, APHP Hôpital Necker Enfants Malades, Paris, France
| | - M Rio
- Paris Descartes University, Sorbonne Paris-Cité, Institut Imagine, UMR 1163, France
| | - S Romano
- Molecular Genetics Unit, APHP Hôpital Necker Enfants Malades, Paris, France
| | - L Robel
- Department of Child and Adolescent Psychiatry, APHP Hôpital Necker Enfants Malades, Paris, France; CESP, INSERM U1178, University Paris-Descartes, USPC Paris, 75014, Paris, France; Paris Descartes University, Sorbonne Paris-Cité, PCPP, France.
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25
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Lebigot E, Gaignard P, Dorboz I, Slama A, Rio M, de Lonlay P, Héron B, Sabourdy F, Boespflug-Tanguy O, Cardoso A, Habarou F, Ottolenghi C, Thérond P, Bouton C, Golinelli-Cohen MP, Boutron A. Impact of mutations within the [Fe-S] cluster or the lipoic acid biosynthesis pathways on mitochondrial protein expression profiles in fibroblasts from patients. Mol Genet Metab 2017; 122:85-94. [PMID: 28803783 DOI: 10.1016/j.ymgme.2017.08.001] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Revised: 08/01/2017] [Accepted: 08/01/2017] [Indexed: 12/24/2022]
Abstract
Lipoic acid (LA) is the cofactor of the E2 subunit of mitochondrial ketoacid dehydrogenases and plays a major role in oxidative decarboxylation. De novo LA biosynthesis is dependent on LIAS activity together with LIPT1 and LIPT2. LIAS is an iron‑sulfur (Fe-S) cluster-containing mitochondrial protein, like mitochondrial aconitase (mt-aco) and some subunits of respiratory chain (RC) complexes I, II and III. All of them harbor at least one [Fe-S] cluster and their activity is dependent on the mitochondrial [Fe-S] cluster (ISC) assembly machinery. Disorders in the ISC machinery affect numerous Fe-S proteins and lead to a heterogeneous group of diseases with a wide variety of clinical symptoms and combined enzymatic defects. Here, we present the biochemical profiles of several key mitochondrial [Fe-S]-containing proteins in fibroblasts from 13 patients carrying mutations in genes encoding proteins involved in either the lipoic acid (LIPT1 and LIPT2) or mitochondrial ISC biogenesis (FDX1L, ISCA2, IBA57, NFU1, BOLA3) pathway. Ten of them are new patients described for the first time. We confirm that the fibroblast is a good cellular model to study these deficiencies, except for patients presenting mutations in FDX1L and a muscular clinical phenotype. We find that oxidative phosphorylation can be affected by LA defects in LIPT1 and LIPT2 patients due to excessive oxidative stress or to another mechanism connecting LA and respiratory chain activity. We confirm that NFU1, BOLA3, ISCA2 and IBA57 operate in the maturation of [4Fe-4S] clusters and not in [2Fe-2S] protein maturation. Our work suggests a functional difference between IBA57 and other proteins involved in maturation of [Fe-S] proteins. IBA57 seems to require BOLA3, NFU1 and ISCA2 for its stability and NFU1 requires BOLA3. Finally, our study establishes different biochemical profiles for patients according to their mutated protein.
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Affiliation(s)
- E Lebigot
- Biochemistry Department, Hôpital de Bicêtre, Hôpitaux universitaires Paris-Sud, Assistance Publique - Hôpitaux de Paris, 94270 Le Kremlin Bicêtre, France; Institut de Chimie des Substances Naturelles (ICSN), CNRS UPR 2301, Univ. Paris-Sud, Université Paris-Saclay, 91198 Gif-sur-Yvette cedex, France
| | - P Gaignard
- Biochemistry Department, Hôpital de Bicêtre, Hôpitaux universitaires Paris-Sud, Assistance Publique - Hôpitaux de Paris, 94270 Le Kremlin Bicêtre, France
| | - I Dorboz
- Inserm U1141, Paris Diderot University, Sorbonne Paris Cité, DHU PROTECT, Hôpital Robert Debré, Paris, France
| | - A Slama
- Biochemistry Department, Hôpital de Bicêtre, Hôpitaux universitaires Paris-Sud, Assistance Publique - Hôpitaux de Paris, 94270 Le Kremlin Bicêtre, France
| | - M Rio
- Reference Center of Inherited Metabolic Diseases, Hôpital Necker Enfants Malades, Institut Imagine, Assistance Publique - Hôpitaux de Paris, Université Paris-Descartes, 75015 Paris, France
| | - P de Lonlay
- Reference Center of Inherited Metabolic Diseases, Hôpital Necker Enfants Malades, Institut Imagine, Assistance Publique - Hôpitaux de Paris, Université Paris-Descartes, 75015 Paris, France
| | - B Héron
- Neuropediatrics Department, Hôpital Trousseau, Assistance Publique - Hôpitaux de Paris, 75012 Paris, GCR Concer-LD Sorbonne Universités UPMC, Univ 06, Paris, France
| | - F Sabourdy
- Metabolic Biochemistry Department, Hôpital des Enfants, 31059 Toulouse cedex, France
| | - O Boespflug-Tanguy
- Inserm U1141, Paris Diderot University, Sorbonne Paris Cité, DHU PROTECT, Hôpital Robert Debré, Paris, France; Neuropediatrics Department, Hôpital Robert Debré, Assistance Publique - Hôpitaux de Paris, 75019 Paris, France
| | - A Cardoso
- Biochemistry Department, Hôpital de Bicêtre, Hôpitaux universitaires Paris-Sud, Assistance Publique - Hôpitaux de Paris, 94270 Le Kremlin Bicêtre, France
| | - F Habarou
- Metabolic Biochemistry Department, Hôpital Necker Enfants Malades, Assistance Publique - Hôpitaux de Paris, 75015 Paris, France
| | - C Ottolenghi
- Metabolic Biochemistry Department, Hôpital Necker Enfants Malades, Assistance Publique - Hôpitaux de Paris, 75015 Paris, France
| | - P Thérond
- Biochemistry Department, Hôpital de Bicêtre, Hôpitaux universitaires Paris-Sud, Assistance Publique - Hôpitaux de Paris, 94270 Le Kremlin Bicêtre, France
| | - C Bouton
- Institut de Chimie des Substances Naturelles (ICSN), CNRS UPR 2301, Univ. Paris-Sud, Université Paris-Saclay, 91198 Gif-sur-Yvette cedex, France
| | - M P Golinelli-Cohen
- Institut de Chimie des Substances Naturelles (ICSN), CNRS UPR 2301, Univ. Paris-Sud, Université Paris-Saclay, 91198 Gif-sur-Yvette cedex, France
| | - A Boutron
- Biochemistry Department, Hôpital de Bicêtre, Hôpitaux universitaires Paris-Sud, Assistance Publique - Hôpitaux de Paris, 94270 Le Kremlin Bicêtre, France.
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26
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Cavallin M, Rujano MA, Bednarek N, Medina-Cano D, Bernabe Gelot A, Drunat S, Maillard C, Garfa-Traore M, Bole C, Nitschké P, Beneteau C, Besnard T, Cogné B, Eveillard M, Kuster A, Poirier K, Verloes A, Martinovic J, Bidat L, Rio M, Lyonnet S, Reilly ML, Boddaert N, Jenneson-Liver M, Motte J, Doco-Fenzy M, Chelly J, Attie-Bitach T, Simons M, Cantagrel V, Passemard S, Baffet A, Thomas S, Bahi-Buisson N. WDR81 mutations cause extreme microcephaly and impair mitotic progression in human fibroblasts and Drosophila neural stem cells. Brain 2017; 140:2597-2609. [PMID: 28969387 DOI: 10.1093/brain/awx218] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [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: 02/27/2017] [Accepted: 07/06/2017] [Indexed: 12/16/2022] Open
Abstract
Microlissencephaly is a rare brain malformation characterized by congenital microcephaly and lissencephaly. Microlissencephaly is suspected to result from abnormalities in the proliferation or survival of neural progenitors. Despite the recent identification of six genes involved in microlissencephaly, the pathophysiological basis of this condition remains poorly understood. We performed trio-based whole exome sequencing in seven subjects from five non-consanguineous families who presented with either microcephaly or microlissencephaly. This led to the identification of compound heterozygous mutations in WDR81, a gene previously associated with cerebellar ataxia, intellectual disability and quadrupedal locomotion. Patient phenotypes ranged from severe microcephaly with extremely reduced gyration with pontocerebellar hypoplasia to moderate microcephaly with cerebellar atrophy. In patient fibroblast cells, WDR81 mutations were associated with increased mitotic index and delayed prometaphase/metaphase transition. Similarly, in vivo, we showed that knockdown of the WDR81 orthologue in Drosophila led to increased mitotic index of neural stem cells with delayed mitotic progression. In summary, we highlight the broad phenotypic spectrum of WDR81-related brain malformations, which include microcephaly with moderate to extremely reduced gyration and cerebellar anomalies. Our results suggest that WDR81 might have a role in mitosis that is conserved between Drosophila and humans.
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Affiliation(s)
- Mara Cavallin
- Laboratory of Embryology and Genetics of Congenital Malformations, INSERM UMR 1163, Imagine Institute, Paris, France.,Paris Descartes - Sorbonne Paris Cité University, Imagine Institute, Paris, France.,Pediatric Neurology APHP- Necker Enfants Malades University Hospital, Paris, France
| | - Maria A Rujano
- Laboratory of Embryology and Genetics of Congenital Malformations, INSERM UMR 1163, Imagine Institute, Paris, France.,Paris Descartes - Sorbonne Paris Cité University, Imagine Institute, Paris, France.,Laboratory of Epithelial biology and disease, INSERM UMR 1163, Imagine Institute, Paris, France
| | | | - Daniel Medina-Cano
- Paris Descartes - Sorbonne Paris Cité University, Imagine Institute, Paris, France.,Laboratory of Molecular and Pathophysiological Bases of Cognitive Disorders, INSERM UMR 1163, Imagine Institute, Paris, France
| | - Antoinette Bernabe Gelot
- AP-HP, Hôpital Armand Trousseau, Laboratoire d'Anatomie Pathologique, Neuropathologie, Paris, France.,INMED, INSERM U 901 Campus de Luminy, Marseille, France
| | - Severine Drunat
- Department of Medical Genetics and INSERM UMR1141, APHP-Robert DEBRE Universitary Hospital, Paris, France
| | - Camille Maillard
- Laboratory of Embryology and Genetics of Congenital Malformations, INSERM UMR 1163, Imagine Institute, Paris, France.,Paris Descartes - Sorbonne Paris Cité University, Imagine Institute, Paris, France
| | | | - Christine Bole
- Genomic Core Facility, INSERM UMR 1163, Imagine Institute, Paris, France
| | - Patrick Nitschké
- Bioinformatics Core Facility, INSERM UMR 1163, Imagine Institute, Paris, France
| | - Claire Beneteau
- CHU Nantes, Service de Génétique Médicale, 9 quai Moncousu, 44093 Nantes CEDEX 1, France
| | - Thomas Besnard
- CHU Nantes, Service de Génétique Médicale, 9 quai Moncousu, 44093 Nantes CEDEX 1, France
| | - Benjamin Cogné
- CHU Nantes, Service de Génétique Médicale, 9 quai Moncousu, 44093 Nantes CEDEX 1, France
| | - Marion Eveillard
- CHU Nantes, Service d'Hématologie Biologique, 9 quai Moncousu, 44093 Nantes CEDEX 1, France
| | - Alice Kuster
- CHU Nantes, Service de réanimation Pédiatrique, Centre de compétence des maladies héréditaires du métabolisme, 38 boulevard Jean Monet, 44093 Nantes, France
| | - Karine Poirier
- Inserm, U1016, Institut Cochin, Paris, France.,CNRS, UMR8104, Paris, France
| | - Alain Verloes
- Department of Medical Genetics and INSERM UMR1141, APHP-Robert DEBRE Universitary Hospital, Paris, France.,Sorbonne-Paris Cité University, Denis Diderot School of Medicine, Paris, France
| | - Jelena Martinovic
- Unit of Fetal Pathology Hospital Antoine Béclère, AP-HP, Clamart, France
| | - Laurent Bidat
- Department of Prenatal Diagnosis, Department of Obstetrics and Gynecology, René Dubos Hospital, Pontoise, France
| | - Marlene Rio
- Service de Génétique, Necker Enfants Malades University Hospital, AP-HP, Paris, France
| | - Stanislas Lyonnet
- Laboratory of Embryology and Genetics of Congenital Malformations, INSERM UMR 1163, Imagine Institute, Paris, France.,Paris Descartes - Sorbonne Paris Cité University, Imagine Institute, Paris, France
| | - M Louise Reilly
- Paris Descartes - Sorbonne Paris Cité University, Imagine Institute, Paris, France.,Laboratory of Inherited Kidney Disease, INSERM UMR 1163, Imagine Institute, Paris, France.,Paris Diderot University, 75013 Paris, France
| | - Nathalie Boddaert
- Pediatric Radiology, Necker Enfants Malades University Hospital, APHP, Paris, France.,Image - Institut Imagine, INSERM UMR1163, Université Paris Descartes, Hôpital Necker Enfants Malades, Paris, France
| | | | - Jacques Motte
- University of Reims Champagne Ardennes, UFR médecine, Reims, France
| | | | - Jamel Chelly
- IGBMC, INSERM U964, CNRS UMR 7104, Université de Strasbourg. 67404 Illkirch Cedex, France.,Pôle de biologie, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - Tania Attie-Bitach
- Laboratory of Embryology and Genetics of Congenital Malformations, INSERM UMR 1163, Imagine Institute, Paris, France.,Paris Descartes - Sorbonne Paris Cité University, Imagine Institute, Paris, France.,Service de Génétique, Necker Enfants Malades University Hospital, AP-HP, Paris, France
| | - Matias Simons
- Paris Descartes - Sorbonne Paris Cité University, Imagine Institute, Paris, France.,Laboratory of Epithelial biology and disease, INSERM UMR 1163, Imagine Institute, Paris, France
| | - Vincent Cantagrel
- Paris Descartes - Sorbonne Paris Cité University, Imagine Institute, Paris, France.,Laboratory of Molecular and Pathophysiological Bases of Cognitive Disorders, INSERM UMR 1163, Imagine Institute, Paris, France
| | - Sandrine Passemard
- Department of Medical Genetics and INSERM UMR1141, APHP-Robert DEBRE Universitary Hospital, Paris, France.,Sorbonne-Paris Cité University, Denis Diderot School of Medicine, Paris, France
| | - Alexandre Baffet
- Institut Curie. CNRS UMR144, PSL Research University, Paris, France
| | - Sophie Thomas
- Laboratory of Embryology and Genetics of Congenital Malformations, INSERM UMR 1163, Imagine Institute, Paris, France.,Paris Descartes - Sorbonne Paris Cité University, Imagine Institute, Paris, France
| | - Nadia Bahi-Buisson
- Laboratory of Embryology and Genetics of Congenital Malformations, INSERM UMR 1163, Imagine Institute, Paris, France.,Paris Descartes - Sorbonne Paris Cité University, Imagine Institute, Paris, France.,Pediatric Neurology APHP- Necker Enfants Malades University Hospital, Paris, France
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27
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Lake NJ, Webb BD, Stroud DA, Richman TR, Ruzzenente B, Compton AG, Mountford HS, Pulman J, Zangarelli C, Rio M, Boddaert N, Assouline Z, Sherpa MD, Schadt EE, Houten SM, Byrnes J, McCormick EM, Zolkipli-Cunningham Z, Haude K, Zhang Z, Retterer K, Bai R, Calvo SE, Mootha VK, Christodoulou J, Rötig A, Filipovska A, Cristian I, Falk MJ, Metodiev MD, Thorburn DR. Biallelic Mutations in MRPS34 Lead to Instability of the Small Mitoribosomal Subunit and Leigh Syndrome. Am J Hum Genet 2017; 101:239-254. [PMID: 28777931 DOI: 10.1016/j.ajhg.2017.07.005] [Citation(s) in RCA: 67] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Accepted: 07/09/2017] [Indexed: 12/30/2022] Open
Abstract
The synthesis of all 13 mitochondrial DNA (mtDNA)-encoded protein subunits of the human oxidative phosphorylation (OXPHOS) system is carried out by mitochondrial ribosomes (mitoribosomes). Defects in the stability of mitoribosomal proteins or mitoribosome assembly impair mitochondrial protein translation, causing combined OXPHOS enzyme deficiency and clinical disease. Here we report four autosomal-recessive pathogenic mutations in the gene encoding the small mitoribosomal subunit protein, MRPS34, in six subjects from four unrelated families with Leigh syndrome and combined OXPHOS defects. Whole-exome sequencing was used to independently identify all variants. Two splice-site mutations were identified, including homozygous c.321+1G>T in a subject of Italian ancestry and homozygous c.322-10G>A in affected sibling pairs from two unrelated families of Puerto Rican descent. In addition, compound heterozygous MRPS34 mutations were identified in a proband of French ancestry; a missense (c.37G>A [p.Glu13Lys]) and a nonsense (c.94C>T [p.Gln32∗]) variant. We demonstrated that these mutations reduce MRPS34 protein levels and the synthesis of OXPHOS subunits encoded by mtDNA. Examination of the mitoribosome profile and quantitative proteomics showed that the mitochondrial translation defect was caused by destabilization of the small mitoribosomal subunit and impaired monosome assembly. Lentiviral-mediated expression of wild-type MRPS34 rescued the defect in mitochondrial translation observed in skin fibroblasts from affected subjects, confirming the pathogenicity of MRPS34 mutations. Our data establish that MRPS34 is required for normal function of the mitoribosome in humans and furthermore demonstrate the power of quantitative proteomic analysis to identify signatures of defects in specific cellular pathways in fibroblasts from subjects with inherited disease.
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28
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Lehman N, Mazery AC, Visier A, Baumann C, Lachesnais D, Capri Y, Toutain A, Odent S, Mikaty M, Goizet C, Taupiac E, Jacquemont ML, Sanchez E, Schaefer E, Gatinois V, Faivre L, Minot D, Kayirangwa H, Sang KHLQ, Boddaert N, Bayard S, Lacombe D, Moutton S, Touitou I, Rio M, Amiel J, Lyonnet S, Sanlaville D, Picot MC, Geneviève D. Molecular, clinical and neuropsychological study in 31 patients with Kabuki syndrome and KMT2D mutations. Clin Genet 2017; 92:298-305. [PMID: 28295206 DOI: 10.1111/cge.13010] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [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: 10/28/2016] [Revised: 02/17/2017] [Accepted: 03/06/2017] [Indexed: 01/09/2023]
Abstract
Kabuki syndrome (KS-OMIM 147920) is a rare developmental disease characterized by the association of multiple congenital anomalies and intellectual disability. This study aimed to investigate intellectual performance in children with KS and link the performance to several clinical features and molecular data. We recruited 31 children with KMT2D mutations who were 6 to 16 years old. They all completed the Weschler Intelligence Scale for Children, fourth edition. We calculated all indexes: the Full Scale Intellectual Quotient (FSIQ), Verbal Comprehension Index (VCI), Perceptive Reasoning Index (PRI), Processing Speed Index (PSI), and Working Memory Index (WMI). In addition, molecular data and several clinical symptoms were studied. FSIQ and VCI scores were 10 points lower for patients with a truncating mutation than other types of mutations. In addition, scores for FSIQ, VCI and PRI were lower for children with visual impairment than normal vision. We also identified a discrepancy in indexes characterized by high WMI and VCI and low PRI and PSI. We emphasize the importance of early identification and intensive care of visual disorders in patients with KS and recommend individual assessment of intellectual profile.
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Affiliation(s)
- N Lehman
- Département de génétique médicale, maladies rares et médecine personnalisée, centre de référence anomalies du développement et syndromes malformatifs, Unité Inserm U1183, Hôpital Arnaud de Villeneuve, Université Montpellier, CHU Montpellier, Montpellier, France
| | - A C Mazery
- Service de Génétique, Hôpital Necker-Enfants Malades, AP-HP et INSERM UMR 1163, Paris Descartes-Sorbonne Paris Cité University, Institut Imagine, Paris, France
| | - A Visier
- Département de l'information médicale, CHRU Montpellier, Montpellier, France
| | - C Baumann
- Service de génétique médicale, Hôpital Robert Debré, Paris, France
| | - D Lachesnais
- Service de génétique médicale, Hôpital Robert Debré, Paris, France
| | - Y Capri
- Service de génétique médicale, Hôpital Robert Debré, Paris, France
| | - A Toutain
- Service de génétique, CHU, Tours, France
| | - S Odent
- Service de génétique clinique, Hôpital Sud CHU Rennes, Université de Rennes 1, CNRS UMR, Rennes, France
| | - M Mikaty
- Service de génétique clinique, Hôpital Sud CHU Rennes, Université de Rennes 1, CNRS UMR, Rennes, France
| | - C Goizet
- Service de génétique médicale, INSERM U1211, CHU Bordeaux, Bordeaux, France
| | - E Taupiac
- Service de génétique médicale, INSERM U1211, CHU Bordeaux, Bordeaux, France
| | - M L Jacquemont
- Unité de génétique médicale, CHU La Réunion, site GHSR, La Réunion, France
| | - E Sanchez
- Département de génétique médicale, maladies rares et médecine personnalisée, centre de référence anomalies du développement et syndromes malformatifs, Unité Inserm U1183, Hôpital Arnaud de Villeneuve, Université Montpellier, CHU Montpellier, Montpellier, France
| | - E Schaefer
- Service de génétique médicale, Institut de Génétique Médicale d'Alsace, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - V Gatinois
- Département de génétique médicale, maladies rares et médecine personnalisée, centre de référence anomalies du développement et syndromes malformatifs, Unité Inserm U1183, Hôpital Arnaud de Villeneuve, Université Montpellier, CHU Montpellier, Montpellier, France
| | - L Faivre
- Centre de Génétique et Centre de Référence Anomalies du développement et Syndrome Malformatifs, CHU de Dijon et Université de Bourgogne, Dijon, France
| | - D Minot
- Centre de Génétique et Centre de Référence Anomalies du développement et Syndrome Malformatifs, CHU de Dijon et Université de Bourgogne, Dijon, France
| | - H Kayirangwa
- Service de Génétique, Hôpital Necker-Enfants Malades, AP-HP et INSERM UMR 1163, Paris Descartes-Sorbonne Paris Cité University, Institut Imagine, Paris, France
| | - K-H L Q Sang
- Service de Génétique, Hôpital Necker-Enfants Malades, AP-HP et INSERM UMR 1163, Paris Descartes-Sorbonne Paris Cité University, Institut Imagine, Paris, France
| | - N Boddaert
- Service de radiologie pédiatrique, Hôpital Necker Enfants Malades, Paris, France
| | - S Bayard
- Laboratoire Epsylon, EA 4556, Université Paul Valéry Montpellier, Montpellier, France
| | - D Lacombe
- Service de génétique médicale, INSERM U1211, CHU Bordeaux, Bordeaux, France
| | - S Moutton
- Service de génétique médicale, INSERM U1211, CHU Bordeaux, Bordeaux, France
| | - I Touitou
- Département de génétique médicale, maladies rares et médecine personnalisée, centre de référence anomalies du développement et syndromes malformatifs, Unité Inserm U1183, Hôpital Arnaud de Villeneuve, Université Montpellier, CHU Montpellier, Montpellier, France.,Laboratoire de Génétique des Maladies Rares et Maladies Auto-Inflammatoires, Hopital A de Villeneuve, Montpellier, France
| | - M Rio
- Service de Génétique, Hôpital Necker-Enfants Malades, AP-HP et INSERM UMR 1163, Paris Descartes-Sorbonne Paris Cité University, Institut Imagine, Paris, France
| | - J Amiel
- Service de Génétique, Hôpital Necker-Enfants Malades, AP-HP et INSERM UMR 1163, Paris Descartes-Sorbonne Paris Cité University, Institut Imagine, Paris, France
| | - S Lyonnet
- Service de Génétique, Hôpital Necker-Enfants Malades, AP-HP et INSERM UMR 1163, Paris Descartes-Sorbonne Paris Cité University, Institut Imagine, Paris, France
| | - D Sanlaville
- HCL, Service de génétique; Centre de Recherche en Neurosciences de Lyon, Inserm U1028, UMR CNRS 5292, GENDEV Team, Université Claude Bernard Lyon 1, Lyon, France
| | - M C Picot
- Département de l'information médicale, CHRU Montpellier, Montpellier, France
| | - D Geneviève
- Département de génétique médicale, maladies rares et médecine personnalisée, centre de référence anomalies du développement et syndromes malformatifs, Unité Inserm U1183, Hôpital Arnaud de Villeneuve, Université Montpellier, CHU Montpellier, Montpellier, France
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29
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Nambot S, Gavrilov D, Thevenon J, Bruel A, Bainbridge M, Rio M, Goizet C, Rötig A, Jaeken J, Niu N, Xia F, Vital A, Houcinat N, Mochel F, Kuentz P, Lehalle D, Duffourd Y, Rivière J, Thauvin-Robinet C, Beaudet A, Faivre L. Further delineation of a rare recessive encephalomyopathy linked to mutations in GFER thanks to data sharing of whole exome sequencing data. Clin Genet 2017; 92:188-198. [DOI: 10.1111/cge.12985] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2016] [Revised: 12/24/2016] [Accepted: 01/25/2017] [Indexed: 02/06/2023]
Affiliation(s)
- S. Nambot
- Centre de Génétique et Centre de référence «Anomalies du Développement et Syndromes Malformatifs», Hôpital d'Enfants; Centre Hospitalier Universitaire de Dijon; Dijon France
- Laboratoire de Génétique Moléculaire, Plateau Technique de Biologie; Centre Hospitalier Universitaire de Dijon; Dijon France
| | - D. Gavrilov
- Biochemical Genetics Laboratory, Department of Laboratory Medicine and Pathology; Mayo Clinic College of Medicine; Rochester Minnesota
- Department of Genetics and Genomics; Mayo Clinic College of Medicine; Rochester Minnesota
| | - J. Thevenon
- Centre de Génétique et Centre de référence «Anomalies du Développement et Syndromes Malformatifs», Hôpital d'Enfants; Centre Hospitalier Universitaire de Dijon; Dijon France
- Fédération Hospitalo-Universitaire Médecine Translationnelle et Anomalies du Développement (FHU TRANSLAD); Centre Hospitalier Universitaire de Dijon et Université de Bourgogne-Franche Comté; Dijon France
- Génétique des Anomalies du Développement; Université de Bourgogne; Dijon France
| | - A.L. Bruel
- Laboratoire de Génétique Moléculaire, Plateau Technique de Biologie; Centre Hospitalier Universitaire de Dijon; Dijon France
- Génétique des Anomalies du Développement; Université de Bourgogne; Dijon France
| | - M. Bainbridge
- Human Genome Sequencing Center; Baylor College of Medicine; Houston Texas
| | - M. Rio
- Service de Génétique Médicale; Hôpital Necker Enfants Malades; Paris France
| | - C. Goizet
- Service de Génétique Médicale; Centre Hospitalier Universitaire de Bordeaux-GH Pellegrin; Bordeaux France
| | - A. Rötig
- Laboratoire de Génétique Moléculaire, Institut de Recherche Necker Enfants Malades; Hôpital Necker Enfants Malades; Paris France
| | - J. Jaeken
- Center for Metabolic Diseases; University Hospital Gasthuisberg; Leuven Belgium
| | - N. Niu
- Department of Molecular and Human Genetics; Baylor College of Medicine; Houston Texas
| | - F. Xia
- Department of Molecular and Human Genetics; Baylor College of Medicine; Houston Texas
| | - A. Vital
- Service de Pathologie, Pôle Biologie et Pathologie; Centre Hospitalier Universitaire de Bordeaux-GH Pellegrin; Bordeaux France
| | - N. Houcinat
- Centre de Génétique et Centre de référence «Anomalies du Développement et Syndromes Malformatifs», Hôpital d'Enfants; Centre Hospitalier Universitaire de Dijon; Dijon France
| | - F. Mochel
- Service de Génétique médicale; Centre Hospitalier Universitaire La Pitié Salpêtrière-Charles Foix; Paris France
| | - P. Kuentz
- Laboratoire de Génétique Moléculaire, Plateau Technique de Biologie; Centre Hospitalier Universitaire de Dijon; Dijon France
| | - D. Lehalle
- Centre de Génétique et Centre de référence «Anomalies du Développement et Syndromes Malformatifs», Hôpital d'Enfants; Centre Hospitalier Universitaire de Dijon; Dijon France
| | - Y. Duffourd
- Fédération Hospitalo-Universitaire Médecine Translationnelle et Anomalies du Développement (FHU TRANSLAD); Centre Hospitalier Universitaire de Dijon et Université de Bourgogne-Franche Comté; Dijon France
- Génétique des Anomalies du Développement; Université de Bourgogne; Dijon France
| | - J.B. Rivière
- Laboratoire de Génétique Moléculaire, Plateau Technique de Biologie; Centre Hospitalier Universitaire de Dijon; Dijon France
- Fédération Hospitalo-Universitaire Médecine Translationnelle et Anomalies du Développement (FHU TRANSLAD); Centre Hospitalier Universitaire de Dijon et Université de Bourgogne-Franche Comté; Dijon France
- Génétique des Anomalies du Développement; Université de Bourgogne; Dijon France
| | - C. Thauvin-Robinet
- Centre de Génétique et Centre de référence «Anomalies du Développement et Syndromes Malformatifs», Hôpital d'Enfants; Centre Hospitalier Universitaire de Dijon; Dijon France
- Fédération Hospitalo-Universitaire Médecine Translationnelle et Anomalies du Développement (FHU TRANSLAD); Centre Hospitalier Universitaire de Dijon et Université de Bourgogne-Franche Comté; Dijon France
- Génétique des Anomalies du Développement; Université de Bourgogne; Dijon France
| | - A.L. Beaudet
- Department of Molecular and Human Genetics; Baylor College of Medicine; Houston Texas
| | - L. Faivre
- Centre de Génétique et Centre de référence «Anomalies du Développement et Syndromes Malformatifs», Hôpital d'Enfants; Centre Hospitalier Universitaire de Dijon; Dijon France
- Fédération Hospitalo-Universitaire Médecine Translationnelle et Anomalies du Développement (FHU TRANSLAD); Centre Hospitalier Universitaire de Dijon et Université de Bourgogne-Franche Comté; Dijon France
- Génétique des Anomalies du Développement; Université de Bourgogne; Dijon France
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Nizon M, Henry M, Michot C, Baumann C, Bazin A, Bessières B, Blesson S, Cordier-Alex MP, David A, Delahaye-Duriez A, Delezoïde AL, Dieux-Coeslier A, Doco-Fenzy M, Faivre L, Goldenberg A, Layet V, Loget P, Marlin S, Martinovic J, Odent S, Pasquier L, Plessis G, Prieur F, Putoux A, Rio M, Testard H, Bonnefont JP, Cormier-Daire V. A series of 38 novel germline and somatic mutations of NIPBL in Cornelia de Lange syndrome. Clin Genet 2016; 89:584-9. [PMID: 26701315 DOI: 10.1111/cge.12720] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [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: 09/13/2015] [Revised: 12/17/2015] [Accepted: 12/21/2015] [Indexed: 01/15/2023]
Abstract
Cornelia de Lange syndrome is a multisystemic developmental disorder mainly related to de novo heterozygous NIPBL mutation. Recently, NIPBL somatic mosaicism has been highlighted through buccal cell DNA study in some patients with a negative molecular analysis on leukocyte DNA. Here, we present a series of 38 patients with a Cornelia de Lange syndrome related to a heterozygous NIPBL mutation identified by Sanger sequencing. The diagnosis was based on the following criteria: (i) intrauterine growth retardation and postnatal short stature, (ii) feeding difficulties and/or gastro-oesophageal reflux, (iii) microcephaly, (iv) intellectual disability, and (v) characteristic facial features. We identified 37 novel NIPBL mutations including 34 in leukocytes and 3 in buccal cells only. All mutations shown to have arisen de novo when parent blood samples were available. The present series confirms the difficulty in predicting the phenotype according to the NIPBL mutation. Until now, somatic mosaicism has been observed for 20 cases which do not seem to be consistently associated with a milder phenotype. Besides, several reports support a postzygotic event for those cases. Considering these elements, we recommend a first-line buccal cell DNA analysis in order to improve gene testing sensitivity in Cornelia de Lange syndrome and genetic counselling.
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Affiliation(s)
- M Nizon
- Département de Génétique, Université Paris Descartes-Sorbonne Paris Cité, INSERM UMR1163, Institut IMAGINE, Hôpital Necker-Enfants Malades, Paris, France
| | - M Henry
- Département de Génétique, Université Paris Descartes-Sorbonne Paris Cité, INSERM UMR1163, Institut IMAGINE, Hôpital Necker-Enfants Malades, Paris, France
| | - C Michot
- Département de Génétique, Université Paris Descartes-Sorbonne Paris Cité, INSERM UMR1163, Institut IMAGINE, Hôpital Necker-Enfants Malades, Paris, France
| | - C Baumann
- Département de Génétique, CHU Robert Debré, Paris, France
| | - A Bazin
- Département de Génétique, CH René Dubos, Pontoise, France
| | - B Bessières
- Département de Génétique, Université Paris Descartes-Sorbonne Paris Cité, INSERM UMR1163, Institut IMAGINE, Hôpital Necker-Enfants Malades, Paris, France
| | - S Blesson
- Service de Génétique, CHRU Tours, Hôpital Bretonneau, Tours, France
| | - M-P Cordier-Alex
- Service de Génétique Clinique, Hospices Civils de Lyon, Bron, France
| | - A David
- Service de Génétique Médicale, CHU, Nantes, France
| | - A Delahaye-Duriez
- Service de Génétique, CHU Paris Seine-Saint-Denis, Hôpital Jean Verdier, Bondy, France
| | - A-L Delezoïde
- Département de Génétique, CHU Robert Debré, Paris, France
| | - A Dieux-Coeslier
- Service de Génétique Clinique, CHRU de Lille, Hôpital Jeanne de Flandre, Lille, France
| | - M Doco-Fenzy
- Service de Génétique, CHU de Reims, Hôpital Maison Blanche, Reims, France
| | - L Faivre
- Centre de Génétique, CHU de Dijon, Dijon, France
| | | | - V Layet
- Service de Génétique Médicale, GH du Havre, Hôpital Jacques Monod, Le Havre, France
| | - P Loget
- Service d'anatomie et cytologie pathologiques, Hôpital Pontchaillou, Université de Rennes 1, CHU, Rennes, France
| | - S Marlin
- Département de Génétique, Université Paris Descartes-Sorbonne Paris Cité, INSERM UMR1163, Institut IMAGINE, Hôpital Necker-Enfants Malades, Paris, France
| | - J Martinovic
- Département de Génétique, Université Paris Descartes-Sorbonne Paris Cité, INSERM UMR1163, Institut IMAGINE, Hôpital Necker-Enfants Malades, Paris, France
| | - S Odent
- Service de Génétique Clinique, CHU Rennes, Hôpital Sud, Rennes, France
| | - L Pasquier
- Service de Génétique Clinique, CHU Rennes, Hôpital Sud, Rennes, France
| | - G Plessis
- Service de Génétique Médicale, CHU Clémenceau, Caen, France
| | - F Prieur
- Service de Génétique Clinique, CHU de Saint-Etienne, Hôpital Nord, Saint-Priest-en-Jarez, France
| | - A Putoux
- Service de Génétique Clinique, Hospices Civils de Lyon, Bron, France
| | - M Rio
- Département de Génétique, Université Paris Descartes-Sorbonne Paris Cité, INSERM UMR1163, Institut IMAGINE, Hôpital Necker-Enfants Malades, Paris, France
| | - H Testard
- Département de Pédiatrie, CHU Grenoble, Grenoble, France
| | - J-P Bonnefont
- Département de Génétique, Université Paris Descartes-Sorbonne Paris Cité, INSERM UMR1163, Institut IMAGINE, Hôpital Necker-Enfants Malades, Paris, France
| | - V Cormier-Daire
- Département de Génétique, Université Paris Descartes-Sorbonne Paris Cité, INSERM UMR1163, Institut IMAGINE, Hôpital Necker-Enfants Malades, Paris, France
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Jégaden D, Rio M, Bianco S, Lucas D, Loddé B, Dewitte J. L’ennui au travail et la disposition à l’ennui chez les marins : différence entre officiers et personnels d’exécution. ARCH MAL PROF ENVIRO 2015. [DOI: 10.1016/j.admp.2014.09.001] [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: 10/24/2022]
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Habarou F, Brassier A, Rio M, Chrétien D, Monnot S, Barbier V, Barouki R, Bonnefont JP, Boddaert N, Chadefaux-Vekemans B, Le Moyec L, Bastin J, Ottolenghi C, de Lonlay P. Pyruvate carboxylase deficiency: An underestimated cause of lactic acidosis. Mol Genet Metab Rep 2014. [PMID: 28649521 PMCID: PMC5471145 DOI: 10.1016/j.ymgmr.2014.11.001] [Citation(s) in RCA: 12] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Pyruvate carboxylase (PC) is a biotin-containing mitochondrial enzyme that catalyzes the conversion of pyruvate to oxaloacetate, thereby being involved in gluconeogenesis and in energy production through replenishment of the tricarboxylic acid (TCA) cycle with oxaloacetate. PC deficiency is a very rare metabolic disorder. We report on a new patient affected by the moderate form (the American type A). Diagnosis was nearly fortuitous, resulting from the revision of an initial diagnosis of mitochondrial complex IV (C IV) defect. The patient presented with severe lactic acidosis and pronounced ketonuria, associated with lethargy at age 23 months. Intellectual disability was noted at this time. Amino acids in plasma and organic acids in urine did not show patterns of interest for the diagnostic work-up. In skin fibroblasts PC showed no detectable activity whereas biotinidase activity was normal. We had previously reported another patient with the severe form of PC deficiency and we show that she also had secondary C IV deficiency in fibroblasts. Different anaplerotic treatments in vivo and in vitro were tested using fibroblasts of both patients with 2 different types of PC deficiency, type A (patient 1) and type B (patient 2). Neither clinical nor biological effects in vivo and in vitro were observed using citrate, aspartate, oxoglutarate and bezafibrate. In conclusion, this case report suggests that the moderate form of PC deficiency may be underdiagnosed and illustrates the challenges raised by energetic disorders in terms of diagnostic work-up and therapeutical strategy even in a moderate form.
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Affiliation(s)
- F Habarou
- Centre de Référence des Maladies Héréditaires du Métabolisme, Hôpital Necker, APHP, Paris, France.,INSERM U1124, Université Paris Descartes, Paris, France.,Service de Biochimie Métabolomique et Protéomique, Hôpital Necker, APHP, Paris, France
| | - A Brassier
- Centre de Référence des Maladies Héréditaires du Métabolisme, Hôpital Necker, APHP, Paris, France.,Université Paris Descartes, Paris, France
| | - M Rio
- Département de Génétique, Hôpital Necker, APHP, Paris, France
| | | | - S Monnot
- Département de Génétique, Hôpital Necker, APHP, Paris, France.,IHU Imagine, UMR1163, France
| | - V Barbier
- Centre de Référence des Maladies Héréditaires du Métabolisme, Hôpital Necker, APHP, Paris, France
| | - R Barouki
- Centre de Référence des Maladies Héréditaires du Métabolisme, Hôpital Necker, APHP, Paris, France.,INSERM U1124, Université Paris Descartes, Paris, France.,Service de Biochimie Métabolomique et Protéomique, Hôpital Necker, APHP, Paris, France
| | - J P Bonnefont
- Département de Génétique, Hôpital Necker, APHP, Paris, France.,INSERM U781, Paris, France
| | - N Boddaert
- Service de Radiologie Pédiatrique, Hôpital Necker, APHP, Paris, France
| | - B Chadefaux-Vekemans
- Centre de Référence des Maladies Héréditaires du Métabolisme, Hôpital Necker, APHP, Paris, France.,INSERM U1124, Université Paris Descartes, Paris, France.,Service de Biochimie Métabolomique et Protéomique, Hôpital Necker, APHP, Paris, France
| | - L Le Moyec
- INSERM U902, Université d'Evry Val d'Essonne, INSERM UBIAE U902, Boulevard François Miterrand, 91025 Evry, France
| | - J Bastin
- INSERM U1124, Université Paris Descartes, Paris, France
| | - C Ottolenghi
- Centre de Référence des Maladies Héréditaires du Métabolisme, Hôpital Necker, APHP, Paris, France.,INSERM U1124, Université Paris Descartes, Paris, France.,Service de Biochimie Métabolomique et Protéomique, Hôpital Necker, APHP, Paris, France
| | - P de Lonlay
- Centre de Référence des Maladies Héréditaires du Métabolisme, Hôpital Necker, APHP, Paris, France.,Université Paris Descartes, Paris, France.,INSERM U781, Paris, France
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Donadieu J, Rigaud C, Lebre AS, Touraine R, Ottolenghi C, Chabli A, Charron P, Rio M, De Lonlay P, Bonnet D. Syndrome de Barth : le reconnaître, le traiter. Recommandations pour la prise en charge. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.oncohp.2014.07.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Bricout M, Grévent D, Lebre AS, Rio M, Desguerre I, De Lonlay P, Valayannopoulos V, Brunelle F, Rötig A, Munnich A, Boddaert N. Brain imaging in mitochondrial respiratory chain deficiency: combination of brain MRI features as a useful tool for genotype/phenotype correlations. J Med Genet 2014; 51:429-35. [PMID: 24793058 DOI: 10.1136/jmedgenet-2013-102256] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Mitochondrial diseases are characterised by a broad clinical and genetic heterogeneity that makes diagnosis difficult. Owing to the wide pattern of symptoms in mitochondrial disorders and the constantly growing number of disease genes, their genetic diagnosis is difficult and genotype/phenotype correlations remain elusive. Brain MRI appears as a useful tool for genotype/phenotype correlations. Here, we summarise the various combinations of MRI lesions observed in the most frequent mitochondrial respiratory chain deficiencies so as to direct molecular genetic test in patients at risk of such diseases. We believe that the combination of brain MRI features is of value to support respiratory chain deficiency and direct molecular genetic tests.
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Affiliation(s)
- M Bricout
- Department of Pediatric Radiology, Hôpital Necker-Enfants Malades and Inserm U781 and U1000, Université Paris Descartes-Sorbonne Paris Cité, Institut Imagine, Paris, France
| | - D Grévent
- Department of Pediatric Radiology, Hôpital Necker-Enfants Malades and Inserm U781 and U1000, Université Paris Descartes-Sorbonne Paris Cité, Institut Imagine, Paris, France
| | - A S Lebre
- Department of Genetic Units, Hôpital Necker-Enfants Malades and Inserm U781 and U1000, Université Paris Descartes-Sorbonne Paris Cité, Institut Imagine, Paris, France
| | - M Rio
- Department of Genetic Units, Hôpital Necker-Enfants Malades and Inserm U781 and U1000, Université Paris Descartes-Sorbonne Paris Cité, Institut Imagine, Paris, France
| | - I Desguerre
- Department of Neurology, Hôpital Necker-Enfants Malades and Inserm U781 and U1000, Université Paris Descartes-Sorbonne Paris Cité, Institut Imagine, Paris, France
| | - P De Lonlay
- Department of Neurology, Hôpital Necker-Enfants Malades and Inserm U781 and U1000, Université Paris Descartes-Sorbonne Paris Cité, Institut Imagine, Paris, France
| | - V Valayannopoulos
- Department of Neurology, Hôpital Necker-Enfants Malades and Inserm U781 and U1000, Université Paris Descartes-Sorbonne Paris Cité, Institut Imagine, Paris, France
| | - F Brunelle
- Department of Pediatric Radiology, Hôpital Necker-Enfants Malades and Inserm U781 and U1000, Université Paris Descartes-Sorbonne Paris Cité, Institut Imagine, Paris, France
| | - A Rötig
- Department of Genetic Units, Hôpital Necker-Enfants Malades and Inserm U781 and U1000, Université Paris Descartes-Sorbonne Paris Cité, Institut Imagine, Paris, France
| | - A Munnich
- Department of Genetic Units, Hôpital Necker-Enfants Malades and Inserm U781 and U1000, Université Paris Descartes-Sorbonne Paris Cité, Institut Imagine, Paris, France
| | - N Boddaert
- Department of Pediatric Radiology, Hôpital Necker-Enfants Malades and Inserm U781 and U1000, Université Paris Descartes-Sorbonne Paris Cité, Institut Imagine, Paris, France
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36
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Devaux-Bricout M, Grévent D, Lebre AS, Rio M, Desguerre I, De Lonlay P, Valayannopoulos V, Brunelle F, Rötig A, Munnich A, Boddaert N. [Aspect of brain MRI in mitochondrial respiratory chain deficiency. A diagnostic algorithm of the most common mitochondrial genetic mutations]. Rev Neurol (Paris) 2014; 170:381-9. [PMID: 24768439 DOI: 10.1016/j.neurol.2014.03.006] [Citation(s) in RCA: 3] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2014] [Accepted: 03/24/2014] [Indexed: 10/25/2022]
Abstract
Mitochondrial diseases are due to deficiency of the respiratory chain and are characterized by a broad clinical and genetic heterogeneity that makes diagnosis difficult. Some clinical presentations are highly suggestive of given gene mutations, allowing rapid genetic diagnosis. However, owing to the wide pattern of symptoms in mitochondrial disorders and the constantly growing number of disease genes, their genetic diagnosis is frequently difficult and genotype/phenotype correlations remain elusive. For this reason, brain MRI appears as a useful tool for genotype/phenotype correlations. Here, we report the most frequent neuroradiological signs in mitochondrial respiratory chain deficiency and we propose a diagnostic algorithm based on neuroimaging features, so as to direct molecular genetic tests in patients at risk of mitochondrial respiratory chain deficiency. This algorithm is based on the careful analysis of five areas on brain MRI: (1) basal ganglia (hyperintensities on T2 or calcifications); (2) cerebellum (hyperintensities on T2 or atrophy); (3) brainstem (hyperintensities on T2 or atrophy); (4) white matter (leukoencephalopathy); (5) cortex (sub-tentorial atrophy); (6) stroke-like episodes. We believe that the combination of brain MRI features is of value to support respiratory chain deficiency and direct molecular genetic tests.
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Affiliation(s)
- M Devaux-Bricout
- Service de radiologie pédiatrique, hôpital Necker-Enfants-Malades, Inserm U781 et U1000, université Paris Descartes-Sorbonne Paris Cité, 149, rue de Sèvres, 75015 Paris, France.
| | - D Grévent
- Service de radiologie pédiatrique, hôpital Necker-Enfants-Malades, Inserm U781 et U1000, université Paris Descartes-Sorbonne Paris Cité, 149, rue de Sèvres, 75015 Paris, France
| | - A-S Lebre
- Unités génétiques, hôpital Necker-Enfants-Malades, Inserm U781 et U1000, université Paris Descartes-Sorbonne Paris Cité, 149, rue de Sèvres, 75015 Paris, France
| | - M Rio
- Unités génétiques, hôpital Necker-Enfants-Malades, Inserm U781 et U1000, université Paris Descartes-Sorbonne Paris Cité, 149, rue de Sèvres, 75015 Paris, France
| | - I Desguerre
- Service de neurologie, hôpital Necker-Enfants-Malades, Inserm U781 et U1000, université Paris Descartes-Sorbonne Paris Cité, 149, rue de Sèvres, 75015 Paris, France
| | - P De Lonlay
- Service de neurologie, hôpital Necker-Enfants-Malades, Inserm U781 et U1000, université Paris Descartes-Sorbonne Paris Cité, 149, rue de Sèvres, 75015 Paris, France
| | - V Valayannopoulos
- Service de neurologie, hôpital Necker-Enfants-Malades, Inserm U781 et U1000, université Paris Descartes-Sorbonne Paris Cité, 149, rue de Sèvres, 75015 Paris, France
| | - F Brunelle
- Service de radiologie pédiatrique, hôpital Necker-Enfants-Malades, Inserm U781 et U1000, université Paris Descartes-Sorbonne Paris Cité, 149, rue de Sèvres, 75015 Paris, France
| | - A Rötig
- Unités génétiques, hôpital Necker-Enfants-Malades, Inserm U781 et U1000, université Paris Descartes-Sorbonne Paris Cité, 149, rue de Sèvres, 75015 Paris, France; Institut Imagine, 156, rue Vaugirard, 75015 Paris, France
| | - A Munnich
- Unités génétiques, hôpital Necker-Enfants-Malades, Inserm U781 et U1000, université Paris Descartes-Sorbonne Paris Cité, 149, rue de Sèvres, 75015 Paris, France; Institut Imagine, 156, rue Vaugirard, 75015 Paris, France
| | - N Boddaert
- Service de radiologie pédiatrique, hôpital Necker-Enfants-Malades, Inserm U781 et U1000, université Paris Descartes-Sorbonne Paris Cité, 149, rue de Sèvres, 75015 Paris, France
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Piard J, Aral B, Vabres P, Holder-Espinasse M, Mégarbané A, Gauthier S, Capra V, Pierquin G, Callier P, Baumann C, Pasquier L, Baujat G, Martorell L, Rodriguez A, Brady AF, Boralevi F, González-Enseñat MA, Rio M, Bodemer C, Philip N, Cordier MP, Goldenberg A, Demeer B, Wright M, Blair E, Puzenat E, Parent P, Sznajer Y, Francannet C, DiDonato N, Boute O, Barlogis V, Moldovan O, Bessis D, Coubes C, Tardieu M, Cormier-Daire V, Sousa AB, Franques J, Toutain A, Tajir M, Elalaoui SC, Geneviève D, Thevenon J, Courcet JB, Rivière JB, Collet C, Gigot N, Faivre L, Thauvin-Robinet C. Search for ReCQL4 mutations in 39 patients genotyped for suspected Rothmund-Thomson/Baller-Gerold syndromes. Clin Genet 2014; 87:244-51. [PMID: 24635570 DOI: 10.1111/cge.12361] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [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: 11/12/2013] [Revised: 02/12/2014] [Accepted: 02/12/2014] [Indexed: 11/28/2022]
Abstract
Three overlapping conditions, namely Rothmund-Thomson (RTS), Baller-Gerold (BGS) and RAPADILINO syndromes, have been attributed to RECQL4 mutations. Differential diagnoses depend on the clinical presentation, but the numbers of known genes remain low, leading to the widespread prescription of RECQL4 sequencing. The aim of our study was therefore to determine the best clinical indicators for the presence of RECQL4 mutations in a series of 39 patients referred for RECQL4 molecular analysis and belonging to the RTS (27 cases) and BGS (12 cases) spectrum. One or two deleterious RECQL4 mutations were found in 10/27 patients referred for RTS diagnosis. Clinical and molecular reevaluation led to a different diagnosis in 7/17 negative cases, including Clericuzio-type poikiloderma with neutropenia, hereditary sclerosing poikiloderma, and craniosynostosis/anal anomalies/porokeratosis. No RECQL4 mutations were found in the BGS group without poikiloderma, confirming that RECQL4 sequencing was not indicated in this phenotype. One chromosomal abnormality and one TWIST mutation was found in this cohort. This study highlights the search for differential diagnoses before the prescription of RECQL4 sequencing in this clinically heterogeneous group. The combination of clinically defined subgroups and next-generation sequencing will hopefully bring to light new molecular bases of syndromes with poikiloderma, as well as BGS without poikiloderma.
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Affiliation(s)
- J Piard
- EA 4271 GAD "Génétique des Anomalies du Développement", IFR Santé STIC, Université de Bourgogne, Dijon, France; Centre de Génétique Humaine, CHU Besançon, Besançon, France
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Rio M, Lebre AS, Rötig A, Munnich A. Approccio diagnostico delle citopatie mitocondriali del bambino. Neurologia 2014. [DOI: 10.1016/s1634-7072(14)66665-4] [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: 10/25/2022] Open
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Jégaden D, Rio M, Lucas D, Loddé B, Dewitte JD. Is the study of boredom proneness relevant in determining aptitude to ship boarding authorisation? ARCH MAL PROF ENVIRO 2013. [DOI: 10.1016/j.admp.2013.07.177] [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: 10/26/2022]
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Rio M, Chalm A, Jegaden D. The different effects of the physical and mental impact of ocean navigation on French oceanographers according to gender. ARCH MAL PROF ENVIRO 2013. [DOI: 10.1016/j.admp.2013.07.149] [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: 10/26/2022]
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Rakotomalala G, Agard C, Tonnerre P, Tesse A, Derbré S, Michalet S, Hamzaoui J, Rio M, Cario-Toumaniantz C, Richomme P, Charreau B, Loirand G, Pacaud P. Extract from Mimosa pigra attenuates chronic experimental pulmonary hypertension. J Ethnopharmacol 2013; 148:106-116. [PMID: 23583901 DOI: 10.1016/j.jep.2013.03.075] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2012] [Revised: 03/21/2013] [Accepted: 03/26/2013] [Indexed: 06/02/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Different parts of Mimosa pigra (MPG) are used in traditional medicine in Madagascar, tropical Africa, South America and Indonesia for various troubles including cardiovascular disorders. AIM OF THE STUDY To investigate the mechanisms underlying the vascular effects of MPG by assessing in vitro its antioxidant and anti-inflammatory properties, and its vascular relaxing effects, and in vivo, its action on hypoxic pulmonary hypertension (PAH) in rats. MATERIAL AND METHODS The antioxidant activity of MPG leaf hydromethanolic extract was determined by using both the 1,1-diphenyl-2-picrylhydrazyl radical scavenging and the oxygen radical absorbance capacity in vitro assays. Anti-inflammatory properties were assayed on TNFα-induced VCAM-1 expression in endothelial cells. The vasorelaxant effect of MPG extract was studied on rat arterial rings pre-contracted with phenylephrine (1μM) in the presence or absence of the endothelium. In vivo MPG extract effects were analyzed in chronic hypoxic PAH, obtained by housing male Wistar rats, orally treated or not with MPG extract (400mg/kg/d), in a hypobaric chamber for 21 days. RESULTS MPG leaf extract had antioxidant and anti-inflammatory properties. It induced endothelium-dependent, NO-mediated relaxation of rat aorta and pulmonary artery. In vivo, chronic MPG treatment reduced hypoxic PAH in rat by decreasing by 22.3% the pulmonary arterial pressure and by 20.0% and 23.9% the pulmonary artery and cardiac remodelling, respectively. This effect was associated with a restoration of endothelium function and a 2.3-fold increase in endothelial NO synthase phosphorylation. MPG leaf hydromethanolic extract contained tryptophan and flavonoids, including quercetin glycosides. Both compounds also efficiently limit hypoxia-induced PAH. CONCLUSIONS Our results show endothelial protective action of MPG leaf hydromethanolic extract which is likely to be due to its antioxidant action. MPG successfully attenuated the development of PAH, thus demonstrating the protective effect of MPG on cardiovascular diseases.
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Affiliation(s)
- G Rakotomalala
- INSERM, UMR_S1087-CNRS UMR_C6291, Nantes, F-44000 France; Université de Nantes, Nantes, F-44000 France
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Rigaud C, Lebre AS, Touraine R, Beaupain B, Ottolenghi C, Chabli A, Ansquer H, Ozsahin H, Di Filippo S, De Lonlay P, Borm B, Rivier F, Vaillant MC, Mathieu-Dramard M, Goldenberg A, Viot G, Charron P, Rio M, Bonnet D, Donadieu J. Natural history of Barth syndrome: a national cohort study of 22 patients. Orphanet J Rare Dis 2013; 8:70. [PMID: 23656970 PMCID: PMC3656783 DOI: 10.1186/1750-1172-8-70] [Citation(s) in RCA: 84] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2013] [Accepted: 04/28/2013] [Indexed: 12/16/2022] Open
Abstract
Background This study describes the natural history of Barth syndrome (BTHS). Methods The medical records of all patients with BTHS living in France were identified in multiple sources and reviewed. Results We identified 16 BTHS pedigrees that included 22 patients. TAZ mutations were observed in 15 pedigrees. The estimated incidence of BTHS was 1.5 cases per million births (95%CI: 0.2–2.3). The median age at presentation was 3.1 weeks (range, 0–1.4 years), and the median age at last follow-up was 4.75 years (range, 3–15 years). Eleven patients died at a median age of 5.1 months; 9 deaths were related to cardiomyopathy and 2 to sepsis. The 5-year survival rate was 51%, and no deaths were observed in patients ≥3 years. Fourteen patients presented with cardiomyopathy, and cardiomyopathy was documented in 20 during follow-up. Left ventricular systolic function was very poor during the first year of life and tended to normalize over time. Nineteen patients had neutropenia. Metabolic investigations revealed inconstant moderate 3-methylglutaconic aciduria and plasma arginine levels that were reduced or in the low-normal range. Survival correlated with two prognostic factors: severe neutropenia at diagnosis (<0.5 × 109/L) and birth year. Specifically, the survival rate was 70% for patients born after 2000 and 20% for those born before 2000. Conclusions This survey found that BTHS outcome was affected by cardiac events and by a risk of infection that was related to neutropenia. Modern management of heart failure and prevention of infection in infancy may improve the survival of patients with BTHS without the need for heart transplantation.
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Affiliation(s)
- Charlotte Rigaud
- AP-HP, Registre français des neutropénies chroniques sévères, Centre de référence des déficits Immunitaires Héréditaires, Service d'Hémato-oncologie Pédiatrique Hôpital Trousseau, Paris, France.
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Rio M, Royer G, Gobin S, de Blois MC, Ozilou C, Bernheim A, Nizon M, Munnich A, Bonnefont JP, Romana S, Vekemans M, Turleau C, Malan V. Monozygotic twins discordant for submicroscopic chromosomal anomalies in 2p25.3 region detected by array CGH. Clin Genet 2012; 84:31-6. [PMID: 23061379 DOI: 10.1111/cge.12036] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2012] [Revised: 10/04/2012] [Accepted: 10/05/2012] [Indexed: 02/06/2023]
Abstract
Although discordant phenotypes in monozygotic twins with developmental disorder are not an exception, underlying genetic discordance is rarely reported. Here, we report on the clinical and cytogenetic details of 4-year-old female monozygotic twins with discordant phenotypes. Twin 1 exhibited global developmental delay, overweight and hyperactivity. Twin 2 had an autistic spectrum disorder. Molecular karyotyping in twin 1 identified a 2p25.3 deletion, further confirmed by Fluorescence in situ hybridization (FISH) analysis on leukocytes. Interestingly, array comparative genomic hybridization was normal in twin 2 but FISH analysis using the same probe as twin 1 showed mosaicism with one-third of cells with a 2p25.3 deletion, one-third of cells with a 2p25.3 duplication, and one-third of normal cells. Genotyping with microsatellite markers confirmed the monozygosity of the twins. We propose that the chromosome imbalance may be due to a mitotic non-allelic recombination occurring during blastomeric divisions of a normal zygote. Such event will result in three distinct cell populations, whose proportion in each embryo formed after separation from the zygote may differ, leading to discordant chromosomal anomalies between twins. We also discuss that the MYTL1L and the SNTG2 genes within the reported region could probably relate to the phenotypic discordance of the monozygotic twins.
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Affiliation(s)
- M Rio
- Département de Génétique, Université Paris Descartes, Hôpital Necker-Enfants Malades, AP-HP, Paris, France
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Tenisch EV, Lebre AS, Grevent D, de Lonlay P, Rio M, Zilbovicius M, Funalot B, Desguerre I, Brunelle F, Rotig A, Munnich A, Boddaert N. Massive and exclusive pontocerebellar damage in mitochondrial disease and NUBPL mutations. Neurology 2012; 79:391. [DOI: 10.1212/wnl.0b013e3182611232] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Assouline Z, Jambou M, Rio M, Bole-Feysot C, de Lonlay P, Barnerias C, Desguerre I, Bonnemains C, Guillermet C, Steffann J, Munnich A, Bonnefont J, Rötig A, Lebre A. A constant and similar assembly defect of mitochondrial respiratory chain complex I allows rapid identification of NDUFS4 mutations in patients with Leigh syndrome. Biochim Biophys Acta Mol Basis Dis 2012; 1822:1062-9. [DOI: 10.1016/j.bbadis.2012.01.013] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2011] [Revised: 01/11/2012] [Accepted: 01/25/2012] [Indexed: 12/31/2022]
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Verloes A, Héron D, Billette de Villemeur T, Afenjar A, Baumann C, Bahi-Buisson N, Charles P, Faudet A, Jacquette A, Mignot C, Moutard ML, Passemard S, Rio M, Robel L, Rougeot C, Ville D, Burglen L, des Portes V. Stratégie d’exploration d’une déficience intellectuelle inexpliquée. Arch Pediatr 2012; 19:194-207. [DOI: 10.1016/j.arcped.2011.11.014] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2011] [Revised: 11/22/2011] [Accepted: 11/25/2011] [Indexed: 02/07/2023]
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Molin AM, Andrieux J, Koolen DA, Malan V, Carella M, Colleaux L, Cormier-Daire V, David A, de Leeuw N, Delobel B, Duban-Bedu B, Fischetto R, Flinter F, Kjaergaard S, Kok F, Krepischi AC, Le Caignec C, Ogilvie CM, Maia S, Mathieu-Dramard M, Munnich A, Palumbo O, Papadia F, Pfundt R, Reardon W, Receveur A, Rio M, Ronsbro Darling L, Rosenberg C, Sá J, Vallee L, Vincent-Delorme C, Zelante L, Bondeson ML, Annerén G. A novel microdeletion syndrome at 3q13.31 characterised by developmental delay, postnatal overgrowth, hypoplastic male genitals, and characteristic facial features. J Med Genet 2011; 49:104-9. [PMID: 22180640 PMCID: PMC3261728 DOI: 10.1136/jmedgenet-2011-100534] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
BACKGROUND Congenital deletions affecting 3q11q23 have rarely been reported and only five cases have been molecularly characterised. Genotype-phenotype correlation has been hampered by the variable sizes and breakpoints of the deletions. In this study, 14 novel patients with deletions in 3q11q23 were investigated and compared with 13 previously reported patients. METHODS Clinical data were collected from 14 novel patients that had been investigated by high resolution microarray techniques. Molecular investigation and updated clinical information of one cytogenetically previously reported patient were also included. RESULTS The molecular investigation identified deletions in the region 3q12.3q21.3 with different boundaries and variable sizes. The smallest studied deletion was 580 kb, located in 3q13.31. Genotype-phenotype comparison in 24 patients sharing this shortest region of overlapping deletion revealed several common major characteristics including significant developmental delay, muscular hypotonia, a high arched palate, and recognisable facial features including a short philtrum and protruding lips. Abnormal genitalia were found in the majority of males, several having micropenis. Finally, a postnatal growth pattern above the mean was apparent. The 580 kb deleted region includes five RefSeq genes and two of them are strong candidate genes for the developmental delay: DRD3 and ZBTB20. CONCLUSION A newly recognised 3q13.31 microdeletion syndrome is delineated which is of diagnostic and prognostic value. Furthermore, two genes are suggested to be responsible for the main phenotype.
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Affiliation(s)
- Anna-Maja Molin
- Department of Immunology, Genetics and Pathology, Science for Life Laboratory, Uppsala University, Uppsala, Sweden.
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Lebre AS, Rio M, Faivre d'Arcier L, Vernerey D, Landrieu P, Slama A, Jardel C, Laforêt P, Rodriguez D, Dorison N, Galanaud D, Chabrol B, Paquis-Flucklinger V, Grévent D, Edvardson S, Steffann J, Funalot B, Villeneuve N, Valayannopoulos V, de Lonlay P, Desguerre I, Brunelle F, Bonnefont JP, Rötig A, Munnich A, Boddaert N. A common pattern of brain MRI imaging in mitochondrial diseases with complex I deficiency. J Med Genet 2010; 48:16-23. [PMID: 20972245 DOI: 10.1136/jmg.2010.079624] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
OBJECTIVE To identify a consistent pattern of brain MRI imaging in primary complex I deficiency. Complex I deficiency, a major cause of respiratory chain dysfunction, accounts for various clinical presentations, including Leigh syndrome. Human complex I comprises seven core subunits encoded by mitochondrial DNA (mtDNA) and 38 core subunits encoded by nuclear DNA (nDNA). Moreover, its assembly requires six known and many unknown assembly factors. To date, no correlation between genotypes and brain MRI phenotypes has been found in complex I deficiencies. DESIGN AND SUBJECTS The brain MRIs of 30 patients carrying known mutation(s) in genes involved in complex I were retrospectively collected and compared with the brain MRIs of 11 patients carrying known mutations in genes involved in the pyruvate dehydrogenase (PDH) complex as well as 10 patients with MT-TL1 mutations. RESULTS All complex I deficient patients showed bilateral brainstem lesions (30/30) and 77% (23/30) showed anomalies of the putamen. Supratentorial stroke-like lesions were only observed in complex I deficient patients carrying mtDNA mutations (8/19) and necrotising leucoencephalopathy in patients with nDNA mutations (4/5). Conversely, the isolated stroke-like images observed in patients with MT-TL1 mutations, or the corpus callosum malformations observed in PDH deficient patients, were never observed in complex I deficient patients. CONCLUSION A common pattern of brain MRI imaging was identified with abnormal signal intensities in brainstem and subtentorial nuclei with lactate peak as a clue of complex I deficiency. Combining clinico-biochemical data with brain imaging may therefore help orient genetic studies in complex I deficiency.
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Affiliation(s)
- A S Lebre
- Université Paris Descartes, AP-HP Hôpital Necker-Enfants Malades et Inserm U781 et U797, Départements de Génétique, de Radiologie pédiatrique et des Maladies du développement, Paris, France.
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El Chehadeh S, Aral B, Gigot N, Thauvin-Robinet C, Donzel A, Delrue MA, Lacombe D, David A, Burglen L, Philip N, Moncla A, Cormier-Daire V, Rio M, Edery P, Verloes A, Bonneau D, Afenjar A, Jacquette A, Heron D, Sarda P, Pinson L, Doray B, Vigneron J, Leheup B, Frances-Guidet AM, Dienne G, Holder M, Masurel-Paulet A, Huet F, Teyssier JR, Faivre L. Search for the best indicators for the presence of a VPS13B gene mutation and confirmation of diagnostic criteria in a series of 34 patients genotyped for suspected Cohen syndrome. J Med Genet 2010; 47:549-53. [DOI: 10.1136/jmg.2009.075028] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Rio M, Lebre AS, de Lonlay P, Valayannopoulos V, Desguerre I, Dufier JL, Grévent D, Zilbovicius M, Tréguier C, Brunelle F, de Baracé C, Kaplan J, Espinase-Berrod MA, Sainte-Rose C, Puget S, Rotig A, Munnich A, Boddaert N. Mitochondrial ND5 mutations mimicking brainstem tectal glioma. Neurology 2010; 75:93. [PMID: 20603491 DOI: 10.1212/wnl.0b013e3181e6214a] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- M Rio
- Département de Génétique, Tour Lavoisier 2 étage, Hôpital Necker-Enfants Malades, 149 rue de Sèvres, 75015 Paris, France.
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