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Li D, Wang Q, Bayat A, Battig MR, Zhou Y, Bosch DG, van Haaften G, Granger L, Petersen AK, Pérez-Jurado LA, Aznar-Laín G, Aneja A, Hancarova M, Bendova S, Schwarz M, Kremlikova Pourova R, Sedlacek Z, Keena BA, March ME, Hou C, O’Connor N, Bhoj EJ, Harr MH, Lemire G, Boycott KM, Towne M, Li M, Tarnopolsky M, Brady L, Parker MJ, Faghfoury H, Parsley LK, Agolini E, Dentici ML, Novelli A, Wright M, Palmquist R, Lai K, Scala M, Striano P, Iacomino M, Zara F, Cooper A, Maarup TJ, Byler M, Lebel RR, Balci TB, Louie R, Lyons M, Douglas J, Nowak C, Afenjar A, Hoyer J, Keren B, Maas SM, Motazacker MM, Martinez-Agosto JA, Rabani AM, McCormick EM, Falk MJ, Ruggiero SM, Helbig I, Møller RS, Tessarollo L, Tomassoni Ardori F, Palko ME, Hsieh TC, Krawitz PM, Ganapathi M, Gelb BD, Jobanputra V, Wilson A, Greally J, Jacquemont S, Jizi K, Bruel AL, Quelin C, Misra VK, Chick E, Romano C, Greco D, Arena A, Morleo M, Nigro V, Seyama R, Uchiyama Y, Matsumoto N, Taira R, Tashiro K, Sakai Y, Yigit G, Wollnik B, Wagner M, Kutsche B, Hurst AC, Thompson ML, Schmidt R, Randolph L, Spillmann RC, Shashi V, Higginbotham EJ, Cordeiro D, Carnevale A, Costain G, Khan T, Funalot B, Tran Mau-Them F, Fernandez Garcia Moya L, García-Miñaúr S, Osmond M, Chad L, Quercia N, Carrasco D, Li C, Sanchez-Valle A, Kelley M, Nizon M, Jensson BO, Sulem P, Stefansson K, Gorokhova S, Busa T, Rio M, Hadj Habdallah H, Lesieur-Sebellin M, Amiel J, Pingault V, Mercier S, Vincent M, Philippe C, Fatus-Fauconnier C, Friend K, Halligan RK, Biswas S, Rosser J, Shoubridge C, Corbett M, Barnett C, Gecz J, Leppig K, Slavotinek A, Marcelis C, Pfundt R, de Vries BB, van Slegtenhorst MA, Brooks AS, Cogne B, Rambaud T, Tümer Z, Zackai EH, Akizu N, Song Y, Hakonarson H. Spliceosome malfunction causes neurodevelopmental disorders with overlapping features. J Clin Invest 2024; 134:e171235. [PMID: 37962958 PMCID: PMC10760965 DOI: 10.1172/jci171235] [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: 04/06/2023] [Accepted: 10/31/2023] [Indexed: 11/16/2023] Open
Abstract
Pre-mRNA splicing is a highly coordinated process. While its dysregulation has been linked to neurological deficits, our understanding of the underlying molecular and cellular mechanisms remains limited. We implicated pathogenic variants in U2AF2 and PRPF19, encoding spliceosome subunits in neurodevelopmental disorders (NDDs), by identifying 46 unrelated individuals with 23 de novo U2AF2 missense variants (including 7 recurrent variants in 30 individuals) and 6 individuals with de novo PRPF19 variants. Eight U2AF2 variants dysregulated splicing of a model substrate. Neuritogenesis was reduced in human neurons differentiated from human pluripotent stem cells carrying two U2AF2 hyper-recurrent variants. Neural loss of function (LoF) of the Drosophila orthologs U2af50 and Prp19 led to lethality, abnormal mushroom body (MB) patterning, and social deficits, which were differentially rescued by wild-type and mutant U2AF2 or PRPF19. Transcriptome profiling revealed splicing substrates or effectors (including Rbfox1, a third splicing factor), which rescued MB defects in U2af50-deficient flies. Upon reanalysis of negative clinical exomes followed by data sharing, we further identified 6 patients with NDD who carried RBFOX1 missense variants which, by in vitro testing, showed LoF. Our study implicates 3 splicing factors as NDD-causative genes and establishes a genetic network with hierarchy underlying human brain development and function.
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Affiliation(s)
- Dong Li
- Center for Applied Genomics, and
- Division of Human Genetics, The Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
- Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - Qin Wang
- Raymond G. Perelman Center for Cellular and Molecular Therapeutics, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Allan Bayat
- Department of Regional Health Research, University of Southern Denmark, Odense, Denmark
- Department for Epilepsy Genetics and Personalized Medicine, Danish Epilepsy Centre, Dianalund, Denmark
- Department of Drug Design and Pharmacology, University of Copenhagen, Copenhagen, Denmark
| | | | - Yijing Zhou
- Raymond G. Perelman Center for Cellular and Molecular Therapeutics, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Daniëlle G.M. Bosch
- Department of Clinical Genetics, Erasmus Medical Center, Rotterdam, The Netherlands
| | - Gijs van Haaften
- Department of Genetics, Center for Molecular Medicine, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Leslie Granger
- Department of Genetics and Metabolism, Randall Children’s Hospital at Legacy Emanuel Medical Center, Portland, Oregon, USA
| | - Andrea K. Petersen
- Department of Genetics and Metabolism, Randall Children’s Hospital at Legacy Emanuel Medical Center, Portland, Oregon, USA
| | - Luis A. Pérez-Jurado
- Centro de Investigación Biomédica en Red de Enfermedades Raras, ISCIII, Madrid, Spain
- Genetic Service, Hospital del Mar Research Institute (IMIM), Barcelona, Spain
- Universitat Pompeu Fabra, Barcelona, Spain
| | - Gemma Aznar-Laín
- Universitat Pompeu Fabra, Barcelona, Spain
- Pediatric Neurology, Hospital del Mar Research Institute (IMIM), Barcelona, Spain
| | - Anushree Aneja
- Raymond G. Perelman Center for Cellular and Molecular Therapeutics, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Miroslava Hancarova
- Department of Biology and Medical Genetics, Charles University Second Faculty of Medicine and University Hospital Motol, Prague, Czech Republic
| | - Sarka Bendova
- Department of Biology and Medical Genetics, Charles University Second Faculty of Medicine and University Hospital Motol, Prague, Czech Republic
| | - Martin Schwarz
- Department of Biology and Medical Genetics, Charles University Second Faculty of Medicine and University Hospital Motol, Prague, Czech Republic
| | - Radka Kremlikova Pourova
- Department of Biology and Medical Genetics, Charles University Second Faculty of Medicine and University Hospital Motol, Prague, Czech Republic
| | - Zdenek Sedlacek
- Department of Biology and Medical Genetics, Charles University Second Faculty of Medicine and University Hospital Motol, Prague, Czech Republic
| | - Beth A. Keena
- Division of Human Genetics, The Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | | | | | | | - Elizabeth J. Bhoj
- Center for Applied Genomics, and
- Division of Human Genetics, The Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
- Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | | | - Gabrielle Lemire
- Children’s Hospital of Eastern Ontario Research Institute, University of Ottawa, Ottawa, Ontario, Canada
| | - Kym M. Boycott
- Children’s Hospital of Eastern Ontario Research Institute, University of Ottawa, Ottawa, Ontario, Canada
| | | | - Megan Li
- Invitae, San Francisco, California, USA
| | - Mark Tarnopolsky
- Division of Neuromuscular and Neurometabolic Disorders, Department of Paediatrics, McMaster University Children’s Hospital, Hamilton, Ontario, Canada
| | - Lauren Brady
- Division of Neuromuscular and Neurometabolic Disorders, Department of Paediatrics, McMaster University Children’s Hospital, Hamilton, Ontario, Canada
| | - Michael J. Parker
- Department of Clinical Genetics, Sheffield Children’s Hospital, Sheffield, United Kingdom
| | | | - Lea Kristin Parsley
- University of Illinois College of Medicine, Mercy Health Systems, Rockford, Illinois, USA
| | - Emanuele Agolini
- Laboratory of Medical Genetics, Translational Cytogenomics Research Unit, Bambino Gesù Children’s Hospital, IRCCS, Rome, Italy
| | - Maria Lisa Dentici
- Medical Genetics Unit, Academic Department of Pediatrics, IRCCS, Ospedale Pediatrico Bambino Gesù, Rome, Italy
- Genetics and Rare Diseases Research Division, Ospedale Pediatrico Bambino Gesù, IRCCS, Rome, Italy
| | - Antonio Novelli
- Laboratory of Medical Genetics, Translational Cytogenomics Research Unit, Bambino Gesù Children’s Hospital, IRCCS, Rome, Italy
| | - Meredith Wright
- Rady Children’s Institute for Genomic Medicine, San Diego, California, USA
| | - Rachel Palmquist
- Division of Pediatric Neurology, Department of Pediatrics, University of Utah School of Medicine, Salt Lake City, Utah, USA
| | - Khanh Lai
- Division of Pediatric Pulmonary and Sleep Medicine, University of Utah, Salt Lake City, Utah, USA
| | - Marcello Scala
- Department of Neurosciences, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health, Università Degli Studi di Genova, Genoa, Italy
- Pediatric Neurology and Muscular Diseases Unit, and
| | - Pasquale Striano
- Department of Neurosciences, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health, Università Degli Studi di Genova, Genoa, Italy
- Pediatric Neurology and Muscular Diseases Unit, and
| | - Michele Iacomino
- Medical Genetics Unit, IRCCS, Istituto Giannina Gaslini, Genoa, Italy
| | - Federico Zara
- Medical Genetics Unit, IRCCS, Istituto Giannina Gaslini, Genoa, Italy
| | - Annina Cooper
- Department of Genetics, Southern California Permanente Medical Group, Kaiser Permanente, San Diego, California, USA
| | - Timothy J. Maarup
- Department of Genetics, Kaiser Permanente, Los Angeles, California, USA
| | - Melissa Byler
- Center for Development, Behavior and Genetics, SUNY Upstate Medical University, Syracuse, New York, USA
| | - Robert Roger Lebel
- Center for Development, Behavior and Genetics, SUNY Upstate Medical University, Syracuse, New York, USA
| | - Tugce B. Balci
- Division of Genetics, Department of Paediatrics, London Health Sciences Centre, London, Ontario, Canada
| | - Raymond Louie
- Greenwood Genetic Center, Greenwood, South Carolina, USA
| | - Michael Lyons
- Greenwood Genetic Center, Greenwood, South Carolina, USA
| | - Jessica Douglas
- Division of Genetics and Genomics, Boston Children’s Hospital, Boston, Massachusetts, USA
| | - Catherine Nowak
- Division of Genetics and Metabolism, Mass General Hospital for Children, Boston, Massachusetts, USA
| | - Alexandra Afenjar
- APHP. SU, Reference Center for Intellectual Disabilities Caused by Rare Causes, Department of Genetics and Medical Embryology, Hôpital Trousseau, Paris, France
| | - Juliane Hoyer
- Institute of Human Genetics, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Boris Keren
- Department of Genetics, Hospital Pitié-Salpêtrière, Paris, France
| | - Saskia M. Maas
- Department of Human Genetics, Academic Medical Center, and
| | - Mahdi M. Motazacker
- Laboratory of Genome Diagnostics, Department of Human Genetics, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | | | - Ahna M. Rabani
- Division of Medical Genetics, Department of Pediatrics, UCLA, Los Angeles, California, USA
| | - Elizabeth M. McCormick
- Mitochondrial Medicine Frontier Program, Division of Human Genetics, Department of Pediatrics
| | - Marni J. Falk
- Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
- Mitochondrial Medicine Frontier Program, Division of Human Genetics, Department of Pediatrics
| | - Sarah M. Ruggiero
- Division of Neurology, and
- The Epilepsy NeuroGenetics Initiative (ENGIN), Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Ingo Helbig
- Division of Neurology, and
- The Epilepsy NeuroGenetics Initiative (ENGIN), Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
- Department of Neurology, University of Pennsylvania, Philadelphia, Pennsylvania, USA
- Department of Biomedical and Health Informatics (DBHi), Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Rikke S. Møller
- Department of Regional Health Research, University of Southern Denmark, Odense, Denmark
- Department of Epilepsy Genetics and Personalized Medicine, Danish Epilepsy Centre, Dianalund, Denmark
| | - Lino Tessarollo
- Mouse Cancer Genetics Program, Center for Cancer Research, National Cancer Institute (NCI), Frederick, Maryland, USA
| | - Francesco Tomassoni Ardori
- Mouse Cancer Genetics Program, Center for Cancer Research, National Cancer Institute (NCI), Frederick, Maryland, USA
| | - Mary Ellen Palko
- Mouse Cancer Genetics Program, Center for Cancer Research, National Cancer Institute (NCI), Frederick, Maryland, USA
| | - Tzung-Chien Hsieh
- Institute for Genomic Statistics and Bioinformatics, University Hospital Bonn, Rheinische Friedrich-Wilhelms-Universität Bonn, Bonn, Germany
| | - Peter M. Krawitz
- Institute for Genomic Statistics and Bioinformatics, University Hospital Bonn, Rheinische Friedrich-Wilhelms-Universität Bonn, Bonn, Germany
| | - Mythily Ganapathi
- New York Genome Center, New York, New York, USA
- Department of Pathology, Columbia University Irving Medical Center, New York, New York, USA
| | - Bruce D. Gelb
- Mindich Child Health and Development Institute and the Departments of Pediatrics and Genetics and Genomic Sciences, Icahn School of Medicine, New York, New York, USA
| | - Vaidehi Jobanputra
- New York Genome Center, New York, New York, USA
- Department of Pathology, Columbia University Irving Medical Center, New York, New York, USA
| | | | - John Greally
- Department of Genetics, Albert Einstein College of Medicine, Bronx, New York, USA
| | - Sébastien Jacquemont
- Division of Genetics and Genomics, CHU Ste-Justine Hospital and CHU Sainte-Justine Research Centre, University of Montreal, Montreal, Quebec, Canada
| | - Khadijé Jizi
- Division of Genetics and Genomics, CHU Ste-Justine Hospital and CHU Sainte-Justine Research Centre, University of Montreal, Montreal, Quebec, Canada
| | - Ange-Line Bruel
- INSERM UMR 1231, Genetics of Developmental Anomalies, Université de Bourgogne Franche-Comté, Dijon, France
- UF Innovation en Diagnostic Génomique des Maladies Rares, CHU Dijon Bourgogne, Dijon, France
- FHU-TRANSLAD, Fédération Hospitalo-Universitaire Translational Medicine in Developmental Anomalies, CHU Dijon Bourgogne, Dijon, France
| | - Chloé Quelin
- Medical Genetics Department, Centre de Référence Maladies Rares CLAD-Ouest, CHU Hôpital Sud, Rennes, France
| | - Vinod K. Misra
- Division of Genetic, Genomic, and Metabolic Disorders, Children’s Hospital of Michigan, Detroit, Michigan, USA
- Central Michigan University College of Medicine, Discipline of Pediatrics, Mount Pleasant, Michigan, USA
| | - Erika Chick
- Division of Genetic, Genomic, and Metabolic Disorders, Children’s Hospital of Michigan, Detroit, Michigan, USA
| | - Corrado Romano
- Research Unit of Rare Diseases and Neurodevelopmental Disorders, Oasi Research Institute-IRCCS, Troina, Italy
- Medical Genetics, Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
| | | | | | - Manuela Morleo
- Telethon Institute of Genetics and Medicine (TIGEM), Pozzuoli, Naples, Italy
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli”, Naples, Italy
| | - Vincenzo Nigro
- Telethon Institute of Genetics and Medicine (TIGEM), Pozzuoli, Naples, Italy
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli”, Naples, Italy
| | - Rie Seyama
- Department of Human Genetics, Yokohama City University Graduate School of Medicine, Yokohama, Japan
- Department of Obstetrics and Gynecology, Juntendo University, Tokyo, Japan
| | - Yuri Uchiyama
- Department of Human Genetics, Yokohama City University Graduate School of Medicine, Yokohama, Japan
- Department of Rare Disease Genomics, Yokohama City University Hospital, Yokohama, Japan
| | - Naomichi Matsumoto
- Department of Human Genetics, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Ryoji Taira
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Katsuya Tashiro
- Department of Pediatrics, Karatsu Red Cross Hospital, Saga, Japan
| | - Yasunari Sakai
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Gökhan Yigit
- Institute of Human Genetics, University Medical Center Göttingen, Göttingen, Germany
- DZHK (German Center for Cardiovascular Research), partner site Göttingen, Göttingen, Germany
| | - Bernd Wollnik
- Institute of Human Genetics, University Medical Center Göttingen, Göttingen, Germany
- DZHK (German Center for Cardiovascular Research), partner site Göttingen, Göttingen, Germany
- Cluster of Excellence “Multiscale Bioimaging: from Molecular Machines to Networks of Excitable Cells” (MBExC), University of Göttingen, Göttingen, Germany
| | - Michael Wagner
- Kinderzentrum Oldenburg, Sozialpädiatrisches Zentrum, Diakonisches Werk Oldenburg, Oldenburg, Germany
| | - Barbara Kutsche
- Kinderzentrum Oldenburg, Sozialpädiatrisches Zentrum, Diakonisches Werk Oldenburg, Oldenburg, Germany
| | - Anna C.E. Hurst
- Department of Genetics, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | | | - Ryan Schmidt
- Department of Pathology and Laboratory Medicine, Children’s Hospital Los Angeles, Los Angeles, California, USA
- Keck School of Medicine of the University of Southern California, Los Angeles, California, USA
| | - Linda Randolph
- Keck School of Medicine of the University of Southern California, Los Angeles, California, USA
- Division of Medical Genetics, Children’s Hospital Los Angeles, California, USA
| | - Rebecca C. Spillmann
- Department of Pediatrics–Medical Genetics, Duke University School of Medicine, Durham, North Carolina, USA
| | - Vandana Shashi
- Department of Pediatrics–Medical Genetics, Duke University School of Medicine, Durham, North Carolina, USA
| | | | - Dawn Cordeiro
- Division of Clinical and Metabolic Genetics, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Amanda Carnevale
- Division of Clinical and Metabolic Genetics, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Gregory Costain
- Division of Clinical and Metabolic Genetics, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Tayyaba Khan
- Division of Clinical and Metabolic Genetics, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Benoît Funalot
- Department of Genetics, Hôpital Henri-Mondor APHP and CHI Creteil, University Paris Est Creteil, IMRB, Inserm U.955, Creteil, France
| | - Frederic Tran Mau-Them
- INSERM UMR 1231, Genetics of Developmental Anomalies, Université de Bourgogne Franche-Comté, Dijon, France
- UF Innovation en Diagnostic Génomique des Maladies Rares, CHU Dijon Bourgogne, Dijon, France
| | | | - Sixto García-Miñaúr
- Institute of Medical and Molecular Genetics (INGEMM), Hospital Universitario La Paz, Madrid, Spain
| | - Matthew Osmond
- Children’s Hospital of Eastern Ontario Research Institute, University of Ottawa, Ottawa, Ontario, Canada
| | - Lauren Chad
- Department of Pediatrics, Division of Clinical and Metabolic Genetics, The Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada
| | - Nada Quercia
- Department of Genetic Counselling, Division of Clinical and Metabolic Genetics, Hospital for Sick Children, Ottawa, Ontario, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada
| | - Diana Carrasco
- Department of Clinical Genetics, Cook Children’s Hospital, Fort Worth, Texas, USA
| | - Chumei Li
- Division of Genetics, Department of Paediatrics, McMaster University, Hamilton, Ontario, Canada
| | - Amarilis Sanchez-Valle
- Division of Genetics and Metabolism, Department of Pediatrics, University of South Florida, Tampa, Florida, USA
| | - Meghan Kelley
- Division of Genetics and Metabolism, Department of Pediatrics, University of South Florida, Tampa, Florida, USA
| | - Mathilde Nizon
- Nantes Université, CHU Nantes, Medical Genetics Department, Nantes, France
- Nantes Université, CNRS, INSERM, l’Institut du Thorax, Nantes, France
| | | | | | - Kari Stefansson
- deCODE genetics/Amgen Inc., Reykjavik, Iceland
- Faculty of Medicine, School of Health Sciences, University of Iceland, Reykjavik, Iceland
| | - Svetlana Gorokhova
- Aix Marseille University, Inserm, U1251-MMG, Marseille Medical Genetics, Marseille, France
- Department of Medical Genetics, Timone Hospital, APHM, Marseille, France
| | - Tiffany Busa
- Department of Medical Genetics, Timone Hospital, APHM, Marseille, France
| | - Marlène Rio
- Department of Genomic Medicine of Rare Disorders, Necker Hospital, APHP Center, University Paris Cité, Paris, France
| | - Hamza Hadj Habdallah
- Department of Genomic Medicine of Rare Disorders, Necker Hospital, APHP Center, University Paris Cité, Paris, France
| | - Marion Lesieur-Sebellin
- Department of Genomic Medicine of Rare Disorders, Necker Hospital, APHP Center, University Paris Cité, Paris, France
| | - Jeanne Amiel
- Rare Disease Genetics Department, APHP, Hôpital Necker, Paris, France
- Université Paris Cité, Inserm, Institut Imagine, Embryology and Genetics of Malformations Laboratory, Paris, France
| | - Véronique Pingault
- Rare Disease Genetics Department, APHP, Hôpital Necker, Paris, France
- Université Paris Cité, Inserm, Institut Imagine, Embryology and Genetics of Malformations Laboratory, Paris, France
- Laboratoire de Biologie Médicale Multi-Sites SeqOIA (laboratoire-seqoia.fr), Paris, France
| | - Sandra Mercier
- Nantes Université, CHU Nantes, Medical Genetics Department, Nantes, France
- Nantes Université, CNRS, INSERM, l’Institut du Thorax, Nantes, France
| | - Marie Vincent
- Nantes Université, CHU Nantes, Medical Genetics Department, Nantes, France
- Nantes Université, CNRS, INSERM, l’Institut du Thorax, Nantes, France
| | - Christophe Philippe
- INSERM UMR 1231, Genetics of Developmental Anomalies, Université de Bourgogne Franche-Comté, Dijon, France
| | | | - Kathryn Friend
- Genetics and Molecular Pathology, SA Pathology, Adelaide, South Australia, Australia
| | | | | | - Jane Rosser
- Department of General Medicine, Women’s and Children’s Hospital, Adelaide, South Australia, Australia
| | - Cheryl Shoubridge
- Adelaide Medical School and Robinson Research Institute, The University of Adelaide, South Australia, Australia
| | - Mark Corbett
- Adelaide Medical School and Robinson Research Institute, The University of Adelaide, South Australia, Australia
| | - Christopher Barnett
- Adelaide Medical School and Robinson Research Institute, The University of Adelaide, South Australia, Australia
- Pediatric and Reproductive Genetics Unit, Women’s and Children’s Hospital, North Adelaide, South Australia, Australia
| | - Jozef Gecz
- Adelaide Medical School and Robinson Research Institute, The University of Adelaide, South Australia, Australia
- South Australian Health and Medical Research Institute, Adelaide, South Australia, Australia
| | - Kathleen Leppig
- Genetic Services, Kaiser Permenante of Washington, Seattle, Washington, USA
| | - Anne Slavotinek
- Department of Pediatrics, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio, USA
| | - Carlo Marcelis
- Department of Human Genetics, Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Rolph Pfundt
- Department of Human Genetics, Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Bert B.A. de Vries
- Department of Human Genetics, Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Center, Nijmegen, The Netherlands
| | | | - Alice S. Brooks
- Department of Clinical Genetics, Erasmus Medical Center, Rotterdam, The Netherlands
| | - Benjamin Cogne
- Nantes Université, CHU Nantes, Medical Genetics Department, Nantes, France
- Nantes Université, CNRS, INSERM, l’Institut du Thorax, Nantes, France
- Laboratoire de Biologie Médicale Multi-Sites SeqOIA (laboratoire-seqoia.fr), Paris, France
| | - Thomas Rambaud
- Laboratoire de Biologie Médicale Multi-Sites SeqOIA (laboratoire-seqoia.fr), Paris, France
| | - Zeynep Tümer
- Kennedy Center, Department of Clinical Genetics, Copenhagen University Hospital, Rigshospitalet, Glostrup, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Elaine H. Zackai
- Division of Human Genetics, The Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
- Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - Naiara Akizu
- Raymond G. Perelman Center for Cellular and Molecular Therapeutics, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
- Department of Pathology and Laboratory Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Yuanquan Song
- Raymond G. Perelman Center for Cellular and Molecular Therapeutics, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
- Department of Pathology and Laboratory Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Hakon Hakonarson
- Center for Applied Genomics, and
- Division of Human Genetics, The Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
- Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
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Bertani-Torres W, Lezirovitz K, Alencar-Coutinho D, Pardono E, da Costa SS, Antunes LDN, de Oliveira J, Otto PA, Pingault V, Mingroni-Netto RC. Waardenburg Syndrome: The Contribution of Next-Generation Sequencing to the Identification of Novel Causative Variants. Audiol Res 2023; 14:9-25. [PMID: 38391765 PMCID: PMC10886116 DOI: 10.3390/audiolres14010002] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2023] [Revised: 12/08/2023] [Accepted: 12/13/2023] [Indexed: 02/24/2024] Open
Abstract
Waardenburg syndrome (WS) is characterized by hearing loss and pigmentary abnormalities of the eyes, hair, and skin. The condition is genetically heterogeneous, and is classified into four clinical types differentiated by the presence of dystopia canthorum in type 1 and its absence in type 2. Additionally, limb musculoskeletal abnormalities and Hirschsprung disease differentiate types 3 and 4, respectively. Genes PAX3, MITF, SOX10, KITLG, EDNRB, and EDN3 are already known to be associated with WS. In WS, a certain degree of molecularly undetected patients remains, especially in type 2. This study aims to pinpoint causative variants using different NGS approaches in a cohort of 26 Brazilian probands with possible/probable diagnosis of WS1 (8) or WS2 (18). DNA from the patients was first analyzed by exome sequencing. Seven of these families were submitted to trio analysis. For inconclusive cases, we applied a targeted NGS panel targeting WS/neurocristopathies genes. Causative variants were detected in 20 of the 26 probands analyzed, these being five in PAX3, eight in MITF, two in SOX10, four in EDNRB, and one in ACTG1 (type 2 Baraitser-Winter syndrome, BWS2). In conclusion, in our cohort of patients, the detection rate of the causative variant was 77%, confirming the superior detection power of NGS in genetically heterogeneous diseases.
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Affiliation(s)
- William Bertani-Torres
- Centro de Estudos sobre o Genoma Humano e Células Tronco, Departamento de Genética e Biologia Evolutiva, Instituto de Biociências, Universidade de São Paulo, São Paulo 05508-090, Brazil
- Department of Embryology and Genetics of Malformations, INSERM (Institut National de la Santé et de la Recherche Médicale) UMR (Unité Mixte de Recherche) 1163, Université Paris-Cité and Institut Imagine, 75015 Paris, France
| | - Karina Lezirovitz
- Otorhinolaryngology Lab-LIM 32, Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo, São Paulo 01246-000, Brazil
| | - Danillo Alencar-Coutinho
- Otorhinolaryngology Lab-LIM 32, Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo, São Paulo 01246-000, Brazil
| | - Eliete Pardono
- Instituto de Ciências da Saúde, Universidade Paulista UNIP, São Paulo 04026-002, Brazil
- Colégio Miguel de Cervantes, São Paulo 05618-001, Brazil
| | - Silvia Souza da Costa
- Centro de Estudos sobre o Genoma Humano e Células Tronco, Departamento de Genética e Biologia Evolutiva, Instituto de Biociências, Universidade de São Paulo, São Paulo 05508-090, Brazil
| | - Larissa do Nascimento Antunes
- Centro de Estudos sobre o Genoma Humano e Células Tronco, Departamento de Genética e Biologia Evolutiva, Instituto de Biociências, Universidade de São Paulo, São Paulo 05508-090, Brazil
| | - Judite de Oliveira
- Médecine Génomique des Maladies Rares, AP-HP, Hôpital Necker-Enfants Malades, 75015 Paris, France
| | - Paulo Alberto Otto
- Centro de Estudos sobre o Genoma Humano e Células Tronco, Departamento de Genética e Biologia Evolutiva, Instituto de Biociências, Universidade de São Paulo, São Paulo 05508-090, Brazil
| | - Véronique Pingault
- Department of Embryology and Genetics of Malformations, INSERM (Institut National de la Santé et de la Recherche Médicale) UMR (Unité Mixte de Recherche) 1163, Université Paris-Cité and Institut Imagine, 75015 Paris, France
- Médecine Génomique des Maladies Rares, AP-HP, Hôpital Necker-Enfants Malades, 75015 Paris, France
| | - Regina Célia Mingroni-Netto
- Centro de Estudos sobre o Genoma Humano e Células Tronco, Departamento de Genética e Biologia Evolutiva, Instituto de Biociências, Universidade de São Paulo, São Paulo 05508-090, Brazil
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3
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Bertani-Torres W, Serey-Gaut M, de Oliveira J, Bole C, Parisot M, Nistschké P, Maurin ML, Lapierre JM, Loundon N, Belhous K, Bondurand N, Marlin S, Pingault V. A 22q13.1 duplication in mosaicism including SOX10. Am J Med Genet A 2023; 191:2813-2818. [PMID: 37533297 DOI: 10.1002/ajmg.a.63362] [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: 05/24/2023] [Revised: 07/11/2023] [Accepted: 07/19/2023] [Indexed: 08/04/2023]
Abstract
Waardenburg syndrome (WS) is characterized by the association of sensorineural hearing loss and pigmentation abnormalities. Among the four types, WS Type 2 (WS2) is the only one without a remarkable distinguishing feature. Here, we report a patient initially diagnosed with WS2 who exhibits a 446 kb mosaic duplication in chromosome 22q13.1, encompassing SOX10, and detected using whole genome sequencing in a trio. The patient, a 46,XY boy, presents with profound bilateral sensorineural hearing loss, right heterochromia iridium, left bright blue iris, and skin-depigmented areas in the abdomen and limbs. Vestibular and imaging tests are normal, without inner ear or olfactory bulb malformations. Bilateral cochlear implantation did not prevent language and speech delays. Moderate congenital chronic constipation and neurodevelopmental difficulties were also present. Given the few genes included in this duplicated region (only one OMIM gene with dominant inheritance), this report provides further delineation of the phenotype related to duplications encompassing the entire SOX10 gene.
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Affiliation(s)
- William Bertani-Torres
- Université Paris Cité, Paris, France
- Embryologie et génétique des malformations, Institut Imagine, INSERM U1163, Paris, France
| | - Margaux Serey-Gaut
- Service de Médecine Génomique des Maladies Rares, AP-HP, Hôpital Necker, Paris, France
- Centre de Référence Surdités Génétiques, AP-HP, Hôpital Necker, Paris, France
| | - Judite de Oliveira
- Service de Médecine Génomique des Maladies Rares, AP-HP, Hôpital Necker, Paris, France
| | - Christine Bole
- Genomics Core Facility, Institut Imagine-Structure Fédérative de Recherche Necker, INSERM U1163 et INSERM US24/CNRS UAR3633, Université Paris Cité, Paris, France
| | - Mélanie Parisot
- Genomics Core Facility, Institut Imagine-Structure Fédérative de Recherche Necker, INSERM U1163 et INSERM US24/CNRS UAR3633, Université Paris Cité, Paris, France
| | - Patrick Nistschké
- Université Paris Cité, Paris, France
- Bioinformatics Platform, Institut Imagine, INSERM U1163, Paris, France
| | - Marie-Laure Maurin
- Service de Médecine Génomique des Maladies Rares, AP-HP, Hôpital Necker, Paris, France
| | - Jean-Michel Lapierre
- Service de Médecine Génomique des Maladies Rares, AP-HP, Hôpital Necker, Paris, France
| | - Natalie Loundon
- ENT Department, AP-HP, Hôpital Necker-Enfants Malades, Paris, France
| | - Kahina Belhous
- Department of Radiology, AP-HP, Hôpital Necker-Enfants Malades, Paris, France
| | - Nadège Bondurand
- Université Paris Cité, Paris, France
- Embryologie et génétique des malformations, Institut Imagine, INSERM U1163, Paris, France
| | - Sandrine Marlin
- Embryologie et génétique des malformations, Institut Imagine, INSERM U1163, Paris, France
- Service de Médecine Génomique des Maladies Rares, AP-HP, Hôpital Necker, Paris, France
- Centre de Référence Surdités Génétiques, AP-HP, Hôpital Necker, Paris, France
| | - Véronique Pingault
- Université Paris Cité, Paris, France
- Embryologie et génétique des malformations, Institut Imagine, INSERM U1163, Paris, France
- Service de Médecine Génomique des Maladies Rares, AP-HP, Hôpital Necker, Paris, France
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4
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Dana J, Dorval G, Martin CS, Belhous K, Levy R, Marlin S, De Bie I, Mautret-Godefroy M, Rausell A, Rio M, Boucher-Brischoux E, Attié-Bitach T, Boddaert N, Pingault V. Investigating genotype-to-phenotype correlation in CHARGE syndrome by deep phenotyping and multiparametric clustering. Clin Genet 2023; 104:466-471. [PMID: 37243350 DOI: 10.1111/cge.14363] [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: 02/10/2023] [Revised: 04/17/2023] [Accepted: 05/12/2023] [Indexed: 05/28/2023]
Abstract
CHARGE syndrome, due to CHD7 pathogenic variations, is an autosomal dominant disorder characterized by a large spectrum of severity. Despite the great number of variations reported, no clear genotype-to-phenotype correlation has been reported. Unsupervised machine learning and clustering was undertaken using a retrospective cohort of 42 patients, after deep radiologic and clinical phenotyping, to establish genotype-phenotype correlation for CHD7-related CHARGE syndrome. It resulted in three clusters showing phenotypes of different severities. While no clear genotype-phenotype correlation appeared within the first two clusters, a single patient was outlying the cohort data (cluster 3) with the most atypical phenotype and the most distal frameshift variant in the gene. We added two other patients with similar distal pathogenic variants and observed a tendency toward mild and/or atypical phenotypes. We hypothesized that this finding could potentially be related to escaping nonsense mediated RNA decay, but found no evidence of such decay in vivo for any of the CHD7 pathogenic variation tested. This indicates that this milder phenotype may rather result from the production of a protein retaining all functional domains.
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Affiliation(s)
- Jérémy Dana
- Université Paris Cité, Institut Imagine, Inserm U1163, Paris, France
- Service de Radiologie Pédiatrique, AP-HP, Hôpital Necker Enfants Malades, Université Paris cite, Paris, France
- Department of Diagnostic Radiology, McGill University Health Centre, Montreal, Quebec, Canada
| | - Guillaume Dorval
- Université Paris Cité, Institut Imagine, Inserm U1163, Paris, France
- Service de Médecine Génomique des maladies rares, AP-HP.Centre, Hôpital Necker-Enfants Malades, Paris, France
| | - Christine Saint Martin
- Department of Diagnostic Radiology, McGill University Health Centre, Montreal, Quebec, Canada
| | - Kahina Belhous
- Université Paris Cité, Institut Imagine, Inserm U1163, Paris, France
| | - Raphael Levy
- Université Paris Cité, Institut Imagine, Inserm U1163, Paris, France
| | - Sandrine Marlin
- Université Paris Cité, Institut Imagine, Inserm U1163, Paris, France
- Service de Médecine Génomique des maladies rares, AP-HP.Centre, Hôpital Necker-Enfants Malades, Paris, France
| | - Isabelle De Bie
- Division de génétique médicale, département de médecine spécialisée, centre universitaire de santé McGill, Montréal, Québec, Canada
| | - Manon Mautret-Godefroy
- Service de Médecine Génomique des maladies rares, AP-HP.Centre, Hôpital Necker-Enfants Malades, Paris, France
| | - Antonio Rausell
- Université Paris Cité, Institut Imagine, Inserm U1163, Paris, France
- Service de Médecine Génomique des maladies rares, AP-HP.Centre, Hôpital Necker-Enfants Malades, Paris, France
| | - Marlène Rio
- Université Paris Cité, Institut Imagine, Inserm U1163, Paris, France
- Service de Médecine Génomique des maladies rares, AP-HP.Centre, Hôpital Necker-Enfants Malades, Paris, France
| | | | - Tania Attié-Bitach
- Université Paris Cité, Institut Imagine, Inserm U1163, Paris, France
- Service de Médecine Génomique des maladies rares, AP-HP.Centre, Hôpital Necker-Enfants Malades, Paris, France
| | - Nathalie Boddaert
- Université Paris Cité, Institut Imagine, Inserm U1163, Paris, France
- Service de Radiologie Pédiatrique, AP-HP, Hôpital Necker Enfants Malades, Université Paris cite, Paris, France
| | - Véronique Pingault
- Université Paris Cité, Institut Imagine, Inserm U1163, Paris, France
- Service de Médecine Génomique des maladies rares, AP-HP.Centre, Hôpital Necker-Enfants Malades, Paris, France
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5
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Hennocq Q, Bongibault T, Marlin S, Amiel J, Attie-Bitach T, Baujat G, Boutaud L, Carpentier G, Corre P, Denoyelle F, Djate Delbrah F, Douillet M, Galliani E, Kamolvisit W, Lyonnet S, Milea D, Pingault V, Porntaveetus T, Touzet-Roumazeille S, Willems M, Picard A, Rio M, Garcelon N, Khonsari RH. AI-based diagnosis in mandibulofacial dysostosis with microcephaly using external ear shapes. Front Pediatr 2023; 11:1171277. [PMID: 37664547 PMCID: PMC10469912 DOI: 10.3389/fped.2023.1171277] [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] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Accepted: 07/26/2023] [Indexed: 09/05/2023] Open
Abstract
Introduction Mandibulo-Facial Dysostosis with Microcephaly (MFDM) is a rare disease with a broad spectrum of symptoms, characterized by zygomatic and mandibular hypoplasia, microcephaly, and ear abnormalities. Here, we aimed at describing the external ear phenotype of MFDM patients, and train an Artificial Intelligence (AI)-based model to differentiate MFDM ears from non-syndromic control ears (binary classification), and from ears of the main differential diagnoses of this condition (multi-class classification): Treacher Collins (TC), Nager (NAFD) and CHARGE syndromes. Methods The training set contained 1,592 ear photographs, corresponding to 550 patients. We extracted 48 patients completely independent of the training set, with only one photograph per ear per patient. After a CNN-(Convolutional Neural Network) based ear detection, the images were automatically landmarked. Generalized Procrustes Analysis was then performed, along with a dimension reduction using PCA (Principal Component Analysis). The principal components were used as inputs in an eXtreme Gradient Boosting (XGBoost) model, optimized using a 5-fold cross-validation. Finally, the model was tested on an independent validation set. Results We trained the model on 1,592 ear photographs, corresponding to 1,296 control ears, 105 MFDM, 33 NAFD, 70 TC and 88 CHARGE syndrome ears. The model detected MFDM with an accuracy of 0.969 [0.838-0.999] (p < 0.001) and an AUC (Area Under the Curve) of 0.975 within controls (binary classification). Balanced accuracies were 0.811 [0.648-0.920] (p = 0.002) in a first multiclass design (MFDM vs. controls and differential diagnoses) and 0.813 [0.544-0.960] (p = 0.003) in a second multiclass design (MFDM vs. differential diagnoses). Conclusion This is the first AI-based syndrome detection model in dysmorphology based on the external ear, opening promising clinical applications both for local care and referral, and for expert centers.
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Affiliation(s)
- Quentin Hennocq
- Imagine Institute, INSERM UMR1163, Paris, France
- Service de Chirurgie Maxillo-Faciale et Chirurgie Plastique, Hôpital Necker—Enfants Malades, Assistance Publique—Hôpitaux de Paris, Centre de Référence des Malformations Rares de la Face et de la Cavité Buccale MAFACE, Filière Maladies Rares TeteCou, Faculté de Médecine, Université de Paris Cité, Paris, France
- Laboratoire ‘Forme et Croissance du Crâne’, Faculté de Médecine, Hôpital Necker-Enfants Malades, Assistance Publique-Hôpitaux de Paris, Université Paris Cité, Paris, France
| | - Thomas Bongibault
- Imagine Institute, INSERM UMR1163, Paris, France
- Laboratoire ‘Forme et Croissance du Crâne’, Faculté de Médecine, Hôpital Necker-Enfants Malades, Assistance Publique-Hôpitaux de Paris, Université Paris Cité, Paris, France
| | - Sandrine Marlin
- Imagine Institute, INSERM UMR1163, Paris, France
- Service de Médecine Génomique des Maladies Rares, Hôpital Necker—Enfants Malades, Assistance Publique—Hôpitaux de Paris, Faculté de Médecine, Université de Paris Cité, Paris, France
| | - Jeanne Amiel
- Imagine Institute, INSERM UMR1163, Paris, France
- Service de Médecine Génomique des Maladies Rares, Hôpital Necker—Enfants Malades, Assistance Publique—Hôpitaux de Paris, Faculté de Médecine, Université de Paris Cité, Paris, France
| | - Tania Attie-Bitach
- Imagine Institute, INSERM UMR1163, Paris, France
- Service de Médecine Génomique des Maladies Rares, Hôpital Necker—Enfants Malades, Assistance Publique—Hôpitaux de Paris, Faculté de Médecine, Université de Paris Cité, Paris, France
| | - Geneviève Baujat
- Imagine Institute, INSERM UMR1163, Paris, France
- Service de Médecine Génomique des Maladies Rares, Hôpital Necker—Enfants Malades, Assistance Publique—Hôpitaux de Paris, Faculté de Médecine, Université de Paris Cité, Paris, France
| | - Lucile Boutaud
- Service de Médecine Génomique des Maladies Rares, Hôpital Necker—Enfants Malades, Assistance Publique—Hôpitaux de Paris, Faculté de Médecine, Université de Paris Cité, Paris, France
| | - Georges Carpentier
- CHU Lille, Inserm, Service de Chirurgie Maxillo-Faciale et Stomatologie, U1008-Controlled Drug Delivery Systems and Biomaterial, Université de Lille, Lille, France
| | - Pierre Corre
- Department of Oral and Maxillofacial Surgery, INSERM U1229—Regenerative Medicine and Skeleton RMeS, Nantes, France
- Department of Oral and Maxillofacial Surgery, Nantes University, CHU Nantes, Nantes, France
| | - Françoise Denoyelle
- Department of Paediatric Otolaryngology, AP-HP, Hôpital Necker-Enfants Malades, Paris, France
| | | | | | - Eva Galliani
- Service de Chirurgie Maxillo-Faciale et Chirurgie Plastique, Hôpital Necker—Enfants Malades, Assistance Publique—Hôpitaux de Paris, Centre de Référence des Malformations Rares de la Face et de la Cavité Buccale MAFACE, Filière Maladies Rares TeteCou, Faculté de Médecine, Université de Paris Cité, Paris, France
| | - Wuttichart Kamolvisit
- Center of Excellence for Medical Genomics, Department of Pediatrics, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
- Center of Excellence in Genomics and Precision Dentistry, Department of Physiology, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
| | - Stanislas Lyonnet
- Imagine Institute, INSERM UMR1163, Paris, France
- Service de Médecine Génomique des Maladies Rares, Hôpital Necker—Enfants Malades, Assistance Publique—Hôpitaux de Paris, Faculté de Médecine, Université de Paris Cité, Paris, France
| | - Dan Milea
- Duke-NUS Medical School Singapore, Singapore Eye Research Institute, Singapore National Eye Centre, Singapore, Singapore
| | - Véronique Pingault
- Imagine Institute, INSERM UMR1163, Paris, France
- Service de Médecine Génomique des Maladies Rares, Hôpital Necker—Enfants Malades, Assistance Publique—Hôpitaux de Paris, Faculté de Médecine, Université de Paris Cité, Paris, France
| | - Thantrira Porntaveetus
- Center of Excellence for Medical Genomics, Department of Pediatrics, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
- Center of Excellence in Genomics and Precision Dentistry, Department of Physiology, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
| | - Sandrine Touzet-Roumazeille
- CHU Lille, Inserm, Service de Chirurgie Maxillo-Faciale et Stomatologie, U1008-Controlled Drug Delivery Systems and Biomaterial, Université de Lille, Lille, France
| | - Marjolaine Willems
- Département de Génétique Clinique, CHRU de Montpellier, Hôpital Arnaud de Villeneuve, Institute for Neurosciences of Montpellier, INSERM, Univ Montpellier, Montpellier, France
| | - Arnaud Picard
- Service de Chirurgie Maxillo-Faciale et Chirurgie Plastique, Hôpital Necker—Enfants Malades, Assistance Publique—Hôpitaux de Paris, Centre de Référence des Malformations Rares de la Face et de la Cavité Buccale MAFACE, Filière Maladies Rares TeteCou, Faculté de Médecine, Université de Paris Cité, Paris, France
| | - Marlène Rio
- Imagine Institute, INSERM UMR1163, Paris, France
- Service de Médecine Génomique des Maladies Rares, Hôpital Necker—Enfants Malades, Assistance Publique—Hôpitaux de Paris, Faculté de Médecine, Université de Paris Cité, Paris, France
| | | | - Roman H. Khonsari
- Imagine Institute, INSERM UMR1163, Paris, France
- Service de Chirurgie Maxillo-Faciale et Chirurgie Plastique, Hôpital Necker—Enfants Malades, Assistance Publique—Hôpitaux de Paris, Centre de Référence des Malformations Rares de la Face et de la Cavité Buccale MAFACE, Filière Maladies Rares TeteCou, Faculté de Médecine, Université de Paris Cité, Paris, France
- Laboratoire ‘Forme et Croissance du Crâne’, Faculté de Médecine, Hôpital Necker-Enfants Malades, Assistance Publique-Hôpitaux de Paris, Université Paris Cité, Paris, France
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6
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Alkobtawi M, Pla P, Onteniente B, Seal S, Pingault V, Marlin S, Monsoro-Burq AH. Two induced pluripotent stem cell (iPSC) lines derived from patients affected by Waardenburg syndrome type 1 retain potential to activate neural crest markers. Stem Cell Res 2023; 69:103074. [PMID: 36989619 DOI: 10.1016/j.scr.2023.103074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 02/27/2023] [Accepted: 03/16/2023] [Indexed: 03/29/2023] Open
Abstract
Waardenburg syndrome type 1 (WS1), a rare genetic disease characterized by pigmentation defects and mild craniofacial anomalies often associated with congenital deafness is caused by heterozygous mutations in the PAX3 gene (2q36.1). We have generated two induced pluripotent stem cell lines (PCli029-A and PCli031-A) from two patients from the same family both carrying the same heterozygous deletion in PAX3 exon 1 (c.-70_85 + 366del). These cells are pluripotent as they can differentiate into ectoderm, mesoderm and endoderm. They also can activate the early neural crest marker SNAI2. These cells will be useful for studying the human neural crest-derived pigment cells.
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7
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Kurihara Y, Ekimoto T, Gordon CT, Uchijima Y, Sugiyama R, Kitazawa T, Iwase A, Kotani R, Asai R, Pingault V, Ikeguchi M, Amiel J, Kurihara H. Mandibulofacial dysostosis with alopecia results from ETAR gain-of-function mutations via allosteric effects on ligand binding. J Clin Invest 2023; 133:151536. [PMID: 36637912 PMCID: PMC9927936 DOI: 10.1172/jci151536] [Citation(s) in RCA: 2] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Accepted: 12/16/2022] [Indexed: 01/14/2023] Open
Abstract
Mutations of G protein-coupled receptors (GPCRs) cause various human diseases, but the mechanistic details are limited. Here, we establish p.E303K in the gene encoding the endothelin receptor type A (ETAR/EDNRA) as a recurrent mutation causing mandibulofacial dysostosis with alopecia (MFDA), with craniofacial changes similar to those caused by p.Y129F. Mouse models carrying either of these missense mutations exhibited a partial maxillary-to-mandibular transformation, which was rescued by deleting the ligand endothelin 3 (ET3/EDN3). Pharmacological experiments confirmed the causative ETAR mutations as gain of function, dependent on ET3. To elucidate how an amino acid substitution far from the ligand binding site can increase ligand affinity, we used molecular dynamics (MD) simulations. E303 is located at the intracellular end of transmembrane domain 6, and its replacement by a lysine increased flexibility of this portion of the helix, thus favoring G protein binding and leading to G protein-mediated enhancement of agonist affinity. The Y129F mutation located under the ligand binding pocket reduced the sodium-water network, thereby affecting the extracellular portion of helices in favor of ET3 binding. These findings provide insight into the pathogenesis of MFDA and into allosteric mechanisms regulating GPCR function, which may provide the basis for drug design targeting GPCRs.
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Affiliation(s)
- Yukiko Kurihara
- Department of Physiological Chemistry and Metabolism, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Toru Ekimoto
- Graduate School of Medical Life Science, Yokohama City University, Yokohama, Japan
| | | | - Yasunobu Uchijima
- Department of Physiological Chemistry and Metabolism, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Ryo Sugiyama
- Department of Physiological Chemistry and Metabolism, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Taro Kitazawa
- Department of Physiological Chemistry and Metabolism, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Akiyasu Iwase
- Department of Physiological Chemistry and Metabolism, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Risa Kotani
- Department of Physiological Chemistry and Metabolism, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.,Department of Medical Science, Graduate School of Medicine, University of Hiroshima, Hiroshima, Japan
| | - Rieko Asai
- Department of Physiological Chemistry and Metabolism, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Véronique Pingault
- Department of Genomic Medicine for Rare Diseases, Hôpital Necker-Enfants Malades, AP-HP, Paris, France
| | - Mitsunori Ikeguchi
- Graduate School of Medical Life Science, Yokohama City University, Yokohama, Japan.,Center for Computational Science, RIKEN, Yokohama, Japan
| | - Jeanne Amiel
- INSERM UMR 1163, Institut Imagine and Université Paris-Cité, Paris, France.,Department of Genomic Medicine for Rare Diseases, Hôpital Necker-Enfants Malades, AP-HP, Paris, France
| | - Hiroki Kurihara
- Department of Physiological Chemistry and Metabolism, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
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8
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Ranza E, Le Gouez M, Guimier A, Dunlop NK, Beaudoin S, Malan V, Michot C, Baujat G, Rio M, Cormier-Daire V, Abadie V, Sarnacki S, Delacourt C, Lyonnet S, Attié-Bitach T, Pingault V, Rousseau V, Amiel J. Retrospective evaluation of clinical and molecular data of 148 cases of esophageal atresia. Am J Med Genet A 2023; 191:77-83. [PMID: 36271508 DOI: 10.1002/ajmg.a.62989] [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: 03/01/2022] [Revised: 09/08/2022] [Accepted: 09/26/2022] [Indexed: 12/14/2022]
Abstract
Developmental abnormalities provide a unique opportunity to seek for the molecular mechanisms underlying human organogenesis. Esophageal development remains incompletely understood and elucidating causes for esophageal atresia (EA) in humans would contribute to achieve a better comprehension. Prenatal detection, syndromic classification, molecular diagnosis, and prognostic factors in EA are challenging. Some syndromes have been described to frequently include EA, such as CHARGE, EFTUD2-mandibulofacial dysostosis, Feingold syndrome, trisomy 18, and Fanconi anemia. However, no molecular diagnosis is made in most cases, including frequent associations, such as Vertebral-Anal-Cardiac-Tracheo-Esophageal-Renal-Limb defects (VACTERL). This study evaluates the clinical and genetic test results of 139 neonates and 9 fetuses followed-up at the Necker-Enfants Malades Hospital over a 10-years period. Overall, 52 cases were isolated EA (35%), and 96 were associated with other anomalies (65%). The latter group is divided into three subgroups: EA with a known genomic cause (9/148, 6%); EA with Vertebral-Anal-Cardiac-Tracheo-Esophageal-Renal-Limb defects (VACTERL) or VACTERL/Oculo-Auriculo-Vertebral Dysplasia (VACTERL/OAV) (22/148, 14%); EA with associated malformations including congenital heart defects, duodenal atresia, and diaphragmatic hernia without known associations or syndromes yet described (65/148, 44%). Altogether, the molecular diagnostic rate remains very low and may underlie frequent non-Mendelian genetic models.
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Affiliation(s)
- Emmanuelle Ranza
- Service de médecine génomique des maladies rares, Hôpital Necker-Enfants Malades (AP-HP centre), Paris, France.,Service de Médecine génétique, Hôpitaux Universitaires de Genève, Genève, Switzerland.,Medigenome, Swiss Institute of Genomic Medicine, Geneva, Switzerland
| | - Morgane Le Gouez
- Service de Pédiatrie, Hôpital Necker-Enfants Malades (AP-HP), Paris, France
| | - Anne Guimier
- Service de médecine génomique des maladies rares, Hôpital Necker-Enfants Malades (AP-HP centre), Paris, France.,Institut Imagine, Inserm U1163, Université de Paris, Paris, France
| | - Naziha Khen Dunlop
- Service de Chirurgie Viscérale, Urologique et de Transplantation pédiatrique, Hôpital Universitaire Necker-Enfants Malades (AP-HP et Université de Paris), Paris, France
| | - Sylvie Beaudoin
- Service de Chirurgie Viscérale, Urologique et de Transplantation pédiatrique, Hôpital Universitaire Necker-Enfants Malades (AP-HP et Université de Paris), Paris, France
| | - Valérie Malan
- Service de médecine génomique des maladies rares, Hôpital Necker-Enfants Malades (AP-HP centre), Paris, France
| | - Caroline Michot
- Service de médecine génomique des maladies rares, Hôpital Necker-Enfants Malades (AP-HP centre), Paris, France
| | - Geneviève Baujat
- Service de médecine génomique des maladies rares, Hôpital Necker-Enfants Malades (AP-HP centre), Paris, France
| | - Marlène Rio
- Service de médecine génomique des maladies rares, Hôpital Necker-Enfants Malades (AP-HP centre), Paris, France
| | - Valérie Cormier-Daire
- Service de médecine génomique des maladies rares, Hôpital Necker-Enfants Malades (AP-HP centre), Paris, France.,Institut Imagine, Inserm U1163, Université de Paris, Paris, France
| | - Véronique Abadie
- Service de Pédiatrie, Hôpital Necker-Enfants Malades (AP-HP), Paris, France
| | - Sabine Sarnacki
- Service de Chirurgie Viscérale, Urologique et de Transplantation pédiatrique, Hôpital Universitaire Necker-Enfants Malades (AP-HP et Université de Paris), Paris, France
| | - Christophe Delacourt
- Service de Pneumologie Pédiatrique, Hôpital Necker-Enfants Malades (AP-HP), Paris, France
| | - Stanislas Lyonnet
- Service de médecine génomique des maladies rares, Hôpital Necker-Enfants Malades (AP-HP centre), Paris, France.,Institut Imagine, Inserm U1163, Université de Paris, Paris, France
| | - Tania Attié-Bitach
- Service de médecine génomique des maladies rares, Hôpital Necker-Enfants Malades (AP-HP centre), Paris, France.,Institut Imagine, Inserm U1163, Université de Paris, Paris, France
| | - Véronique Pingault
- Service de médecine génomique des maladies rares, Hôpital Necker-Enfants Malades (AP-HP centre), Paris, France.,Institut Imagine, Inserm U1163, Université de Paris, Paris, France
| | - Véronique Rousseau
- Service de Chirurgie Viscérale, Urologique et de Transplantation pédiatrique, Hôpital Universitaire Necker-Enfants Malades (AP-HP et Université de Paris), Paris, France
| | - Jeanne Amiel
- Service de médecine génomique des maladies rares, Hôpital Necker-Enfants Malades (AP-HP centre), Paris, France.,Institut Imagine, Inserm U1163, Université de Paris, Paris, France
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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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Vegas N, Demir Z, Gordon CT, Breton S, Romanelli Tavares V, Moisset H, Zechi-Ceide R, Kokitsu-Nakata NM, Kido Y, Marlin S, Gherbi Halem S, Meerschaut I, Callewaert B, Chung B, Revencu N, Lehalle D, Petit F, Propst EJ, Papsin BC, Phillips JH, Jakobsen L, Le Tanno P, Thévenon J, McGaughran J, Gerkes EH, Leoni C, Kroisel P, Yang Tan T, Henderson A, Terhal P, Basel-Salmon L, Alkindy A, White SM, Passos Bueno MR, Pingault V, De Pontual L, Amiel J. Further delineation of Auriculocondylar syndrome based on 14 novel cases and reassessment of 25 published cases. Hum Mutat 2022; 43:582-594. [PMID: 35170830 DOI: 10.1002/humu.24349] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 02/08/2022] [Accepted: 02/11/2022] [Indexed: 11/08/2022]
Abstract
Auriculocondylar syndrome (ACS) is a rare craniofacial disorder characterized by mandibular hypoplasia and an auricular defect at the junction between the lobe and helix, known as a "Question Mark Ear" (QME). Several additional features, originating from the first and second branchial arches and other tissues, have also been reported. ACS is genetically heterogeneous with autosomal dominant and recessive modes of inheritance. The mutations identified to date are presumed to dysregulate the endothelin 1 signalling pathway. Here we describe 14 novel cases and reassess 25 published cases of ACS through a questionnaire for systematic data collection. All patients harbour mutation(s) in PLCB4, GNAI3 or EDN1. This series of patients contributes to the characterization of additional features occasionally associated with ACS such as respiratory, costal, neurodevelopmental and genital anomalies, and provides management and monitoring recommendations. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Nancy Vegas
- Laboratory of Embryology and Genetics of Malformations, Institut National de la Santé et de la Recherche Médicale (INSERM) UMR 1163, Université de Paris, Institut Imagine, Paris, France
| | - Zeynep Demir
- Laboratory of Embryology and Genetics of Malformations, Institut National de la Santé et de la Recherche Médicale (INSERM) UMR 1163, Université de Paris, Institut Imagine, Paris, France.,Unité d'hépatologie pédiatrie et transplantation, Hôpital Necker-Enfants Malades, AP-HP, Paris, France
| | - Christopher T Gordon
- Laboratory of Embryology and Genetics of Malformations, Institut National de la Santé et de la Recherche Médicale (INSERM) UMR 1163, Université de Paris, Institut Imagine, Paris, France
| | - Sylvain Breton
- Service d'imagerie pédiatrie, Hôpital Necker-Enfants Malades, AP-HP, Paris, France
| | - Vanessa Romanelli Tavares
- Centro de Pesquisas do Genoma Humano e Celulas Tronco, Departamento de Genetica e Biología Evolutiva, Instituto de Biociencias, Universidade de Sao Paulo, Sao Paulo, Brazil
| | - Hugo Moisset
- Laboratory of Embryology and Genetics of Malformations, Institut National de la Santé et de la Recherche Médicale (INSERM) UMR 1163, Université de Paris, Institut Imagine, Paris, France
| | - Roseli Zechi-Ceide
- Department of Clinical Genetics, Hospital for Rehabilitation of Craniofacial Anomalies, University of Sao Paulo, Bauru, Brazil
| | - Nancy M Kokitsu-Nakata
- Department of Clinical Genetics, Hospital for Rehabilitation of Craniofacial Anomalies, University of Sao Paulo, Bauru, Brazil
| | - Yasuhiro Kido
- Department of Pediatrics, Dokkyo Medical University Koshigaya Hospital, Saitama, Japan
| | - Sandrine Marlin
- Laboratory of Embryology and Genetics of Malformations, Institut National de la Santé et de la Recherche Médicale (INSERM) UMR 1163, Université de Paris, Institut Imagine, Paris, France.,Reference center for genetic hearing loss, Fédération de Génétique et de Médecine Génomique, Hôpital Necker, APHP.CUP, Paris, France
| | - Souad Gherbi Halem
- Reference center for genetic hearing loss, Fédération de Génétique et de Médecine Génomique, Hôpital Necker, APHP.CUP, Paris, France
| | - Ilse Meerschaut
- Center for Medical Genetics, Ghent University Hospital, and Department of Biomolecular Medicine, Ghent University, Belgium
| | - Bert Callewaert
- Center for Medical Genetics, Ghent University Hospital, and Department of Biomolecular Medicine, Ghent University, Belgium
| | - Brian Chung
- Department of Paediatrics and Adolescent Medicine, The University of Hong Kong, Hong Kong
| | - Nicole Revencu
- Center for Human Genetics, Cliniques universitaires Saint Luc, Université catholique de Louvain, Brussels, Belgium
| | - Daphné Lehalle
- Centre de génétique- centre de référence des maladies rares, anomalies du développement et syndrome malformatifs, Centre Hospitalo-Universitaire de Dijon, Bourgogne, France.,UF de Génétique Médicale, Département de Génétique, Groupe Hospitalier Pitié-Salpêtrière, APHP Sorbonne Université, Paris, France
| | - Florence Petit
- CHU Lille, clinique de Génétique Guy Fontaine, F-59000, Lille, France
| | - Evan J Propst
- Department of Otolaryngology-Head and Neck Surgery, The Hospital for Sick Children, University of Toronto, Canada
| | - Blake C Papsin
- Department of Otolaryngology-Head and Neck Surgery, The Hospital for Sick Children, University of Toronto, Canada
| | - John H Phillips
- Department of Otolaryngology-Head and Neck Surgery, The Hospital for Sick Children, University of Toronto, Canada
| | - Linda Jakobsen
- Department of Plastic Surgery, Copenhagen University Hospital, Herlev, Denmark
| | - Pauline Le Tanno
- Service de Génétique et Université Grenoble-Alpes, Grenoble, France
| | - Julien Thévenon
- Service de Génétique et Université Grenoble-Alpes, Grenoble, France
| | - Julie McGaughran
- Genetic Health Queensland, Royal Brisbane and Women's Hospital, Herston and the University of Queensland, St Lucia, Brisbane, Australia
| | - Erica H Gerkes
- Department of Genetics, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Chiara Leoni
- Center for Rare Diseases and Birth Defects, Department of Woman and Child Health and Public Health, Fondazione Policlinico A. Gemelli, IRCCS, Italy
| | - Peter Kroisel
- Institute of Human Genetics, Medical University of Graz, Graz, Austria
| | - Tiong Yang Tan
- Victorian Clinical Genetics Services, Murdoch Children's Research Institute, Royal Children's Hospital, and Department of Paediatrics, University of Melbourne, Melbourne, Victoria, Australia
| | - Alex Henderson
- Northern Genetics Service, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle Upon Tyne, UK
| | - Paulien Terhal
- Department of Medical Genetics, University Medical Centre Utrecht, Utrecht, The Netherlands
| | - Lina Basel-Salmon
- Pediatric Genetics, Schneider Children's Medical Center of Israel and Raphael Recanati Genetics Institute, Rabin Medical Center, Beilinson Campus, Petah Tikva, Israel.,Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.,Felsenstein Medical Research Center, Rabin Medical Center, Petah Tikva, Israel
| | - Adila Alkindy
- Department of Genetics, Sultan Qaboos University Hospital, Muscat, Oman
| | - Susan M White
- Victorian Clinical Genetics Services, Murdoch Children's Research Institute, Royal Children's Hospital, and Department of Paediatrics, University of Melbourne, Melbourne, Victoria, Australia
| | - Maria Rita Passos Bueno
- Centro de Pesquisas do Genoma Humano e Celulas Tronco, Departamento de Genetica e Biología Evolutiva, Instituto de Biociencias, Universidade de Sao Paulo, Sao Paulo, Brazil
| | - Véronique Pingault
- Laboratory of Embryology and Genetics of Malformations, Institut National de la Santé et de la Recherche Médicale (INSERM) UMR 1163, Université de Paris, Institut Imagine, Paris, France.,Fédération de Génétique et de Médecine Génomique, Hôpital Necker, APHP.CUP, Paris, France
| | - Loïc De Pontual
- Laboratory of Embryology and Genetics of Malformations, Institut National de la Santé et de la Recherche Médicale (INSERM) UMR 1163, Université de Paris, Institut Imagine, Paris, France.,Service de pédiatrie, Hôpital Jean Verdier, Bondy, France
| | - Jeanne Amiel
- Laboratory of Embryology and Genetics of Malformations, Institut National de la Santé et de la Recherche Médicale (INSERM) UMR 1163, Université de Paris, Institut Imagine, Paris, France.,Fédération de Génétique et de Médecine Génomique, Hôpital Necker, APHP.CUP, Paris, France
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11
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Castilla-Vallmanya L, Selmer KK, Dimartino C, Rabionet R, Blanco-Sánchez B, Yang S, Reijnders MRF, van Essen AJ, Oufadem M, Vigeland MD, Stadheim B, Houge G, Cox H, Kingston H, Clayton-Smith J, Innis JW, Iascone M, Cereda A, Gabbiadini S, Chung WK, Sanders V, Charrow J, Bryant E, Millichap J, Vitobello A, Thauvin C, Mau-Them FT, Faivre L, Lesca G, Labalme A, Rougeot C, Chatron N, Sanlaville D, Christensen KM, Kirby A, Lewandowski R, Gannaway R, Aly M, Lehman A, Clarke L, Graul-Neumann L, Zweier C, Lessel D, Lozic B, Aukrust I, Peretz R, Stratton R, Smol T, Dieux-Coëslier A, Meira J, Wohler E, Sobreira N, Beaver EM, Heeley J, Briere LC, High FA, Sweetser DA, Walker MA, Keegan CE, Jayakar P, Shinawi M, Kerstjens-Frederikse WS, Earl DL, Siu VM, Reesor E, Yao T, Hegele RA, Vaske OM, Rego S, Shapiro KA, Wong B, Gambello MJ, McDonald M, Karlowicz D, Colombo R, Serretti A, Pais L, O'Donnell-Luria A, Wray A, Sadedin S, Chong B, Tan TY, Christodoulou J, White SM, Slavotinek A, Barbouth D, Morel Swols D, Parisot M, Bole-Feysot C, Nitschké P, Pingault V, Munnich A, Cho MT, Cormier-Daire V, Balcells S, Lyonnet S, Grinberg D, Amiel J, Urreizti R, Gordon CT. Phenotypic spectrum and transcriptomic profile associated with germline variants in TRAF7. Genet Med 2020; 22:1215-1226. [PMID: 32376980 DOI: 10.1038/s41436-020-0792-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Revised: 03/22/2020] [Accepted: 03/23/2020] [Indexed: 11/09/2022] Open
Abstract
PURPOSE Somatic variants in tumor necrosis factor receptor-associated factor 7 (TRAF7) cause meningioma, while germline variants have recently been identified in seven patients with developmental delay and cardiac, facial, and digital anomalies. We aimed to define the clinical and mutational spectrum associated with TRAF7 germline variants in a large series of patients, and to determine the molecular effects of the variants through transcriptomic analysis of patient fibroblasts. METHODS We performed exome, targeted capture, and Sanger sequencing of patients with undiagnosed developmental disorders, in multiple independent diagnostic or research centers. Phenotypic and mutational comparisons were facilitated through data exchange platforms. Whole-transcriptome sequencing was performed on RNA from patient- and control-derived fibroblasts. RESULTS We identified heterozygous missense variants in TRAF7 as the cause of a developmental delay-malformation syndrome in 45 patients. Major features include a recognizable facial gestalt (characterized in particular by blepharophimosis), short neck, pectus carinatum, digital deviations, and patent ductus arteriosus. Almost all variants occur in the WD40 repeats and most are recurrent. Several differentially expressed genes were identified in patient fibroblasts. CONCLUSION We provide the first large-scale analysis of the clinical and mutational spectrum associated with the TRAF7 developmental syndrome, and we shed light on its molecular etiology through transcriptome studies.
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Affiliation(s)
- Laura Castilla-Vallmanya
- Department of Genetics, Microbiology and Statistics, Faculty of Biology, IBUB, Universitat de Barcelona; CIBERER, IRSJD, Barcelona, Spain
| | - Kaja K Selmer
- Department of Research and Innovation, Division of Clinical Neuroscience, Oslo University Hospital and the University of Oslo, Oslo, Norway.,The National Center for Epilepsy, Oslo University Hospital, Oslo, Norway
| | - Clémantine Dimartino
- Laboratory of embryology and genetics of human malformations, Institut National de la Santé et de la Recherche Médicale (INSERM) UMR 1163, Institut Imagine, Paris, France.,Paris Descartes-Sorbonne Paris Cité University, Institut Imagine, Paris, France
| | - Raquel Rabionet
- Department of Genetics, Microbiology and Statistics, Faculty of Biology, IBUB, Universitat de Barcelona; CIBERER, IRSJD, Barcelona, Spain
| | - Bernardo Blanco-Sánchez
- Laboratory of embryology and genetics of human malformations, Institut National de la Santé et de la Recherche Médicale (INSERM) UMR 1163, Institut Imagine, Paris, France.,Paris Descartes-Sorbonne Paris Cité University, Institut Imagine, Paris, France
| | | | - Margot R F Reijnders
- Department of Clinical Genetics, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Antonie J van Essen
- Department of Genetics, University Medical Center Groningen, Groningen, The Netherlands
| | - Myriam Oufadem
- Laboratory of embryology and genetics of human malformations, Institut National de la Santé et de la Recherche Médicale (INSERM) UMR 1163, Institut Imagine, Paris, France.,Paris Descartes-Sorbonne Paris Cité University, Institut Imagine, Paris, France
| | - Magnus D Vigeland
- Department of Medical Genetics, Oslo University Hospital, Oslo, Norway.,Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Barbro Stadheim
- Department of Medical Genetics, Oslo University Hospital, Oslo, Norway
| | - Gunnar Houge
- Department of Medical Genetics, Haukeland University Hospital, Bergen, Norway
| | - Helen Cox
- West Midlands Regional Genetics Service, Birmingham Women's NHS Foundation Trust, Birmingham Women's Hospital, Edgbaston, Birmingham, UK
| | - Helen Kingston
- Manchester Centre for Genomic Medicine, Central Manchester University Hospitals NHS Foundation Trust, Academic Health Sciences Centre, Manchester, UK.,Division of Evolution and Genomic Sciences, University of Manchester, School of Biological Sciences, Manchester, UK
| | - Jill Clayton-Smith
- Manchester Centre for Genomic Medicine, Central Manchester University Hospitals NHS Foundation Trust, Academic Health Sciences Centre, Manchester, UK.,Division of Evolution and Genomic Sciences, University of Manchester, School of Biological Sciences, Manchester, UK
| | - Jeffrey W Innis
- Departments of Human Genetics, Pediatrics and Internal Medicine, University of Michigan, Ann Arbor, MI, USA
| | - Maria Iascone
- Department of Pediatrics, ASST Papa Giovanni XXIII, Bergamo, Italy
| | - Anna Cereda
- Department of Pediatrics, ASST Papa Giovanni XXIII, Bergamo, Italy
| | - Sara Gabbiadini
- Department of Pediatrics, ASST Papa Giovanni XXIII, Bergamo, Italy
| | - Wendy K Chung
- Departments of Pediatrics and Medicine, Columbia University Medical Center, New York, NY, USA
| | - Victoria Sanders
- Ann & Robert H Lurie Children's Hospital of Chicago, Chicago, IL, USA.,Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Joel Charrow
- Ann & Robert H Lurie Children's Hospital of Chicago, Chicago, IL, USA
| | - Emily Bryant
- Ann & Robert H Lurie Children's Hospital of Chicago, Chicago, IL, USA
| | - John Millichap
- Ann & Robert H Lurie Children's Hospital of Chicago, Chicago, IL, USA
| | - Antonio Vitobello
- UF Innovation en diagnostic genomique des maladies rares, CHU Dijon Bourgogne, Dijon, France.,INSERM UMR1231 GAD, Dijon, France
| | - Christel Thauvin
- UF Innovation en diagnostic genomique des maladies rares, CHU Dijon Bourgogne, Dijon, France.,Centre de Reference maladies rares "Anomalies du Developpement et syndrome malformatifs" de l'Est, Centre de Genetique, Hopital d'Enfants, FHU TRANSLAD, CHU Dijon Bourgogne, Dijon, France
| | - Frederic Tran Mau-Them
- UF Innovation en diagnostic genomique des maladies rares, CHU Dijon Bourgogne, Dijon, France.,INSERM UMR1231 GAD, Dijon, France
| | - Laurence Faivre
- INSERM UMR1231 GAD, Dijon, France.,Centre de Reference maladies rares "Anomalies du Developpement et syndrome malformatifs" de l'Est, Centre de Genetique, Hopital d'Enfants, FHU TRANSLAD, CHU Dijon Bourgogne, Dijon, France
| | - Gaetan Lesca
- Department of Medical Genetics, Lyon Hospices Civils, Lyon, France.,Institut NeuroMyoGène, CNRS UMR 5310 - INSERM U1217, Université de Lyon, Lyon, France
| | - Audrey Labalme
- Department of Medical Genetics, Lyon Hospices Civils, Lyon, France
| | | | - Nicolas Chatron
- Department of Medical Genetics, Lyon Hospices Civils, Lyon, France.,Institut NeuroMyoGène, CNRS UMR 5310 - INSERM U1217, Université de Lyon, Lyon, France
| | - Damien Sanlaville
- Department of Medical Genetics, Lyon Hospices Civils, Lyon, France.,Institut NeuroMyoGène, CNRS UMR 5310 - INSERM U1217, Université de Lyon, Lyon, France
| | | | - Amelia Kirby
- Saint Louis University School of Medicine, St. Louis, MO, USA
| | - Raymond Lewandowski
- Department of Human and Molecular Genetics, Virginia Commonwealth University, Richmond, VA, USA
| | - Rachel Gannaway
- Department of Human and Molecular Genetics, Virginia Commonwealth University, Richmond, VA, USA
| | - Maha Aly
- Laboratory of embryology and genetics of human malformations, Institut National de la Santé et de la Recherche Médicale (INSERM) UMR 1163, Institut Imagine, Paris, France.,Paris Descartes-Sorbonne Paris Cité University, Institut Imagine, Paris, France
| | - Anna Lehman
- Department of Medical Genetics, The University of British Columbia, Vancouver, BC, Canada
| | - Lorne Clarke
- Department of Medical Genetics, The University of British Columbia, Vancouver, BC, Canada
| | | | - Christiane Zweier
- Institute of Human Genetics, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Davor Lessel
- Institute of Human Genetics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Bernarda Lozic
- Department of Pediatrics, University Hospital Centre Split; University of Split, School of medicine, Split, Croatia
| | - Ingvild Aukrust
- Department of Medical Genetics, Haukeland University Hospital, Bergen, Norway
| | - Ryan Peretz
- Driscoll Children's Hospital, Corpus Christi, TX, USA
| | | | - Thomas Smol
- Institut de Génétique Médicale, CHU Lille, Lille, France.,Université de Lille, EA 7364 - RADEME - Maladies RAres du DEveloppement embryonnaire et du MEtabolisme, Lille, France
| | | | - Joanna Meira
- Division of Medical Genetics, University Hospital Professor Edgard Santos/ Federal University of Bahia (UFBA), Salvador, Bahia, Brazil
| | - Elizabeth Wohler
- McKusick-Nathans Department of Genetic Medicine, Johns Hopkins University, Baltimore, MD, USA
| | - Nara Sobreira
- McKusick-Nathans Department of Genetic Medicine, Johns Hopkins University, Baltimore, MD, USA
| | - Erin M Beaver
- Mercy Kids Genetics, Mercy Children's Hospital, St. Louis, MO, USA
| | - Jennifer Heeley
- Mercy Kids Genetics, Mercy Children's Hospital, St. Louis, MO, USA
| | - Lauren C Briere
- Division of Medical Genetics & Metabolism, Massachusetts General Hospital for Children, Boston, MA, USA
| | - Frances A High
- Division of Medical Genetics & Metabolism, Massachusetts General Hospital for Children, Boston, MA, USA
| | - David A Sweetser
- Division of Medical Genetics & Metabolism, Massachusetts General Hospital for Children, Boston, MA, USA
| | - Melissa A Walker
- Department of Pediatric Neurology, Massachusetts General Hospital for Children, Boston, MA, USA
| | - Catherine E Keegan
- Departments of Human Genetics, Pediatrics and Internal Medicine, University of Michigan, Ann Arbor, MI, USA
| | - Parul Jayakar
- Division of Genetics and Metabolism, Nicklaus Children's Hospital, Miami, FL, USA
| | - Marwan Shinawi
- Department of Pediatrics, Division of Genetics and Genomic Medicine, Washington University School of Medicine, St. Louis, MO, USA
| | | | - Dawn L Earl
- Seattle Children's Hospital, Seattle, WA, USA
| | | | - Emma Reesor
- University of Western Ontario, London, ON, Canada
| | - Tony Yao
- University of Western Ontario, London, ON, Canada
| | | | - Olena M Vaske
- Department of Molecular, Cell and Developmental Biology, University of California Santa Cruz, Santa Cruz, CA, USA
| | - Shannon Rego
- Institute for Human Genetics, University of California San Francisco, San Francisco, CA, USA
| | | | | | | | - Michael J Gambello
- Department of Human Genetics, Division of Medical Genetics, Emory University School of Medicine, Atlanta, GA, USA
| | - Marie McDonald
- Division of Medical Genetics, Department of Pediatrics, Duke University Medical Center, Durham, NC, USA
| | - Danielle Karlowicz
- Division of Medical Genetics, Department of Pediatrics, Duke University Medical Center, Durham, NC, USA
| | - Roberto Colombo
- Faculty of Medicine, Catholic University, IRCCS Policlinico Gemelli, Rome, Italy.,Center for the Study of Rare Hereditary Diseases (CeSMER), Niguarda Ca' Granda Metropolitan Hospital, Milan, Italy
| | - Alessandro Serretti
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
| | - Lynn Pais
- Broad Center for Mendelian Genomics, Program in Medical and Population Genetics, Broad Institute of Massachusetts Institute of Technology and Harvard, Cambridge, MA, USA
| | - Anne O'Donnell-Luria
- Broad Center for Mendelian Genomics, Program in Medical and Population Genetics, Broad Institute of Massachusetts Institute of Technology and Harvard, Cambridge, MA, USA
| | - Alison Wray
- Royal Children's Hospital, Melbourne, Australia
| | - Simon Sadedin
- Victorian Clinical Genetics Services, Murdoch Children's Research Institute, Melbourne, Australia
| | - Belinda Chong
- Victorian Clinical Genetics Services, Murdoch Children's Research Institute, Melbourne, Australia
| | - Tiong Y Tan
- Victorian Clinical Genetics Services, Murdoch Children's Research Institute, Melbourne, Australia.,Department of Paediatrics, University of Melbourne, Melbourne, Australia
| | - John Christodoulou
- Victorian Clinical Genetics Services, Murdoch Children's Research Institute, Melbourne, Australia.,Department of Paediatrics, University of Melbourne, Melbourne, Australia
| | - Susan M White
- Victorian Clinical Genetics Services, Murdoch Children's Research Institute, Melbourne, Australia.,Department of Paediatrics, University of Melbourne, Melbourne, Australia
| | - Anne Slavotinek
- Department of Pediatrics, University of California San Francisco, San Francisco, CA, USA
| | - Deborah Barbouth
- Dr John T. Macdonald Foundation Department of Human Genetics, University of Miami, Miller School of Medicine, Miami, FL, USA
| | - Dayna Morel Swols
- Dr John T. Macdonald Foundation Department of Human Genetics, University of Miami, Miller School of Medicine, Miami, FL, USA
| | - Mélanie Parisot
- Genomics Core Facility, Institut Imagine-Structure Fédérative de Recherche Necker INSERM UMR1163, Paris, France.,INSERM US24/CNRS UMS3633, Paris Descartes-Sorbonne Paris Cité University, Paris, France
| | - Christine Bole-Feysot
- Genomics Core Facility, Institut Imagine-Structure Fédérative de Recherche Necker INSERM UMR1163, Paris, France.,INSERM US24/CNRS UMS3633, Paris Descartes-Sorbonne Paris Cité University, Paris, France
| | - Patrick Nitschké
- Paris Descartes-Sorbonne Paris Cité University, Institut Imagine, Paris, France.,Bioinformatics Platform, INSERM UMR 1163, Institut Imagine, Paris, France
| | - Véronique Pingault
- Laboratory of embryology and genetics of human malformations, Institut National de la Santé et de la Recherche Médicale (INSERM) UMR 1163, Institut Imagine, Paris, France.,Paris Descartes-Sorbonne Paris Cité University, Institut Imagine, Paris, France.,Département de Génétique, Hôpital Necker-Enfants Malades, Assistance Publique Hôpitaux de Paris, Paris, France
| | - Arnold Munnich
- Paris Descartes-Sorbonne Paris Cité University, Institut Imagine, Paris, France.,Département de Génétique, Hôpital Necker-Enfants Malades, Assistance Publique Hôpitaux de Paris, Paris, France
| | | | - Valérie Cormier-Daire
- Paris Descartes-Sorbonne Paris Cité University, Institut Imagine, Paris, France.,Département de Génétique, Hôpital Necker-Enfants Malades, Assistance Publique Hôpitaux de Paris, Paris, France.,Laboratory of Molecular and Physiopathological Bases of Osteochondrodysplasia, INSERM UMR 1163, Institut Imagine, Paris, France
| | - Susanna Balcells
- Department of Genetics, Microbiology and Statistics, Faculty of Biology, IBUB, Universitat de Barcelona; CIBERER, IRSJD, Barcelona, Spain
| | - Stanislas Lyonnet
- Laboratory of embryology and genetics of human malformations, Institut National de la Santé et de la Recherche Médicale (INSERM) UMR 1163, Institut Imagine, Paris, France.,Paris Descartes-Sorbonne Paris Cité University, Institut Imagine, Paris, France.,Département de Génétique, Hôpital Necker-Enfants Malades, Assistance Publique Hôpitaux de Paris, Paris, France
| | - Daniel Grinberg
- Department of Genetics, Microbiology and Statistics, Faculty of Biology, IBUB, Universitat de Barcelona; CIBERER, IRSJD, Barcelona, Spain
| | - Jeanne Amiel
- Laboratory of embryology and genetics of human malformations, Institut National de la Santé et de la Recherche Médicale (INSERM) UMR 1163, Institut Imagine, Paris, France.,Paris Descartes-Sorbonne Paris Cité University, Institut Imagine, Paris, France.,Département de Génétique, Hôpital Necker-Enfants Malades, Assistance Publique Hôpitaux de Paris, Paris, France
| | - Roser Urreizti
- Department of Genetics, Microbiology and Statistics, Faculty of Biology, IBUB, Universitat de Barcelona; CIBERER, IRSJD, Barcelona, Spain
| | - Christopher T Gordon
- Laboratory of embryology and genetics of human malformations, Institut National de la Santé et de la Recherche Médicale (INSERM) UMR 1163, Institut Imagine, Paris, France. .,Paris Descartes-Sorbonne Paris Cité University, Institut Imagine, Paris, France.
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12
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Thomas HB, Wood KA, Buczek WA, Gordon CT, Pingault V, Attié-Bitach T, Hentges KE, Varghese VC, Amiel J, Newman WG, O'Keefe RT. EFTUD2 missense variants disrupt protein function and splicing in mandibulofacial dysostosis Guion-Almeida type. Hum Mutat 2020; 41:1372-1382. [PMID: 32333448 DOI: 10.1002/humu.24027] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Revised: 03/26/2020] [Accepted: 04/19/2020] [Indexed: 12/20/2022]
Abstract
Pathogenic variants in the core spliceosome U5 small nuclear ribonucleoprotein gene EFTUD2/SNU114 cause the craniofacial disorder mandibulofacial dysostosis Guion-Almeida type (MFDGA). MFDGA-associated variants in EFTUD2 comprise large deletions encompassing EFTUD2, intragenic deletions and single nucleotide truncating or missense variants. These variants are predicted to result in haploinsufficiency by loss-of-function of the variant allele. While the contribution of deletions within EFTUD2 to allele loss-of-function are self-evident, the mechanisms by which missense variants are disease-causing have not been characterized functionally. Combining bioinformatics software prediction, yeast functional growth assays, and a minigene (MG) splicing assay, we have characterized how MFDGA missense variants result in EFTUD2 loss-of-function. Only four of 19 assessed missense variants cause EFTUD2 loss-of-function through altered protein function when modeled in yeast. Of the remaining 15 missense variants, five altered the normal splicing pattern of EFTUD2 pre-messenger RNA predominantly through exon skipping or cryptic splice site activation, leading to the introduction of a premature termination codon. Comparison of bioinformatic predictors for each missense variant revealed a disparity amongst different software packages and, in many cases, an inability to correctly predict changes in splicing subsequently determined by MG interrogation. This study highlights the need for laboratory-based validation of bioinformatic predictions for EFTUD2 missense variants.
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Affiliation(s)
- Huw B Thomas
- Division of Evolution and Genomic Sciences, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
| | - Katherine A Wood
- Division of Evolution and Genomic Sciences, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
| | - Weronika A Buczek
- Division of Evolution and Genomic Sciences, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
| | - Christopher T Gordon
- Laboratory of Embryology and Genetics of Human Malformation, Institut National de la Santé et de la Recherche Médicale (INSERM) UMR 1163, Institut Imagine, Paris, France.,Paris Descartes-Sorbonne Paris Cité University, Institut Imagine, Paris, France
| | - Véronique Pingault
- Laboratory of Embryology and Genetics of Human Malformation, Institut National de la Santé et de la Recherche Médicale (INSERM) UMR 1163, Institut Imagine, Paris, France.,Paris Descartes-Sorbonne Paris Cité University, Institut Imagine, Paris, France.,Département de Génétique, Hôpital Necker-Enfants Malades, AP-HP, Paris, France
| | - Tania Attié-Bitach
- Paris Descartes-Sorbonne Paris Cité University, Institut Imagine, Paris, France.,Département de Génétique, Hôpital Necker-Enfants Malades, AP-HP, Paris, France.,INSERM UMR 1163, Institut Imagine, Paris, France
| | - Kathryn E Hentges
- Division of Evolution and Genomic Sciences, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
| | | | - Jeanne Amiel
- Laboratory of Embryology and Genetics of Human Malformation, Institut National de la Santé et de la Recherche Médicale (INSERM) UMR 1163, Institut Imagine, Paris, France.,Paris Descartes-Sorbonne Paris Cité University, Institut Imagine, Paris, France.,Département de Génétique, Hôpital Necker-Enfants Malades, AP-HP, Paris, France
| | - William G Newman
- Division of Evolution and Genomic Sciences, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester Academic Health Science Centre, Manchester, UK.,Division of Evolution and Genomic Sciences, School of Biological Sciences, Faculty of Biology, Medicine and Health, Center for Genomic Medicine, St. Mary's Hospital, The University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
| | - Raymond T O'Keefe
- Division of Evolution and Genomic Sciences, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
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13
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Radu AG, Torch S, Fauvelle F, Pernet-Gallay K, Lucas A, Blervaque R, Delmas V, Schlattner U, Lafanechère L, Hainaut P, Tricaud N, Pingault V, Bondurand N, Bardeesy N, Larue L, Thibert C, Billaud M. LKB1 specifies neural crest cell fates through pyruvate-alanine cycling. Sci Adv 2019; 5:eaau5106. [PMID: 31328154 PMCID: PMC6636984 DOI: 10.1126/sciadv.aau5106] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Accepted: 06/10/2019] [Indexed: 05/08/2023]
Abstract
Metabolic processes underlying the development of the neural crest, an embryonic population of multipotent migratory cells, are poorly understood. Here, we report that conditional ablation of the Lkb1 tumor suppressor kinase in mouse neural crest stem cells led to intestinal pseudo-obstruction and hind limb paralysis. This phenotype originated from a postnatal degeneration of the enteric nervous ganglia and from a defective differentiation of Schwann cells. Metabolomic profiling revealed that pyruvate-alanine conversion is enhanced in the absence of Lkb1. Mechanistically, inhibition of alanine transaminases restored glial differentiation in an mTOR-dependent manner, while increased alanine level directly inhibited the glial commitment of neural crest cells. Treatment with the metabolic modulator AICAR suppressed mTOR signaling and prevented Schwann cell and enteric defects of Lkb1 mutant mice. These data uncover a link between pyruvate-alanine cycling and the specification of glial cell fate with potential implications in the understanding of the molecular pathogenesis of neural crest diseases.
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Affiliation(s)
- Anca G. Radu
- Institute for Advanced Biosciences, INSERM U1209, CNRS UMR5309, Université Grenoble Alpes, 38000 Grenoble, France
| | - Sakina Torch
- Institute for Advanced Biosciences, INSERM U1209, CNRS UMR5309, Université Grenoble Alpes, 38000 Grenoble, France
| | - Florence Fauvelle
- Univ. Grenoble Alpes, INSERM, U1216, Grenoble Institute of Neurosciences GIN, 38000 Grenoble, France
- Univ. Grenoble Alpes, INSERM, US17, MRI facility IRMaGe, 38000 Grenoble, France
| | - Karin Pernet-Gallay
- Univ. Grenoble Alpes, INSERM, U1216, Grenoble Institute of Neurosciences GIN, 38000 Grenoble, France
| | - Anthony Lucas
- Institute for Advanced Biosciences, INSERM U1209, CNRS UMR5309, Université Grenoble Alpes, 38000 Grenoble, France
| | - Renaud Blervaque
- Institute for Advanced Biosciences, INSERM U1209, CNRS UMR5309, Université Grenoble Alpes, 38000 Grenoble, France
| | - Véronique Delmas
- Institut Curie, Normal and Pathological Development of Melanocytes, CNRS UMR3347; INSERM U1021; Equipe Labellisée–Ligue Nationale Contre le Cancer, Orsay, France
| | - Uwe Schlattner
- Laboratory of Fundamental and Applied Bioenergetics, Univ Grenoble Alpes, 38185 Grenoble, France
- INSERM U1055, 38041 Grenoble France
| | - Laurence Lafanechère
- Institute for Advanced Biosciences, INSERM U1209, CNRS UMR5309, Université Grenoble Alpes, 38000 Grenoble, France
| | - Pierre Hainaut
- Institute for Advanced Biosciences, INSERM U1209, CNRS UMR5309, Université Grenoble Alpes, 38000 Grenoble, France
| | - Nicolas Tricaud
- INSERM U1051, Institut des Neurosciences de Montpellier (INM), Université de Montpellier, Montpellier, France
| | | | | | - Nabeel Bardeesy
- Cancer Center, Massachusetts General Hospital, 185 Cambridge Street, Boston, MA 02114, USA
- Center for Regenerative Medicine, Massachusetts General Hospital, 185 Cambridge Street, Boston, MA 02114, USA
- Department of Medicine, Harvard Medical School, Boston, MA 02114, USA
| | - Lionel Larue
- Institut Curie, Normal and Pathological Development of Melanocytes, CNRS UMR3347; INSERM U1021; Equipe Labellisée–Ligue Nationale Contre le Cancer, Orsay, France
| | - Chantal Thibert
- Institute for Advanced Biosciences, INSERM U1209, CNRS UMR5309, Université Grenoble Alpes, 38000 Grenoble, France
- Corresponding author. (M.B.); (C.T.)
| | - Marc Billaud
- Institute for Advanced Biosciences, INSERM U1209, CNRS UMR5309, Université Grenoble Alpes, 38000 Grenoble, France
- “Clinical and experimental model of lymphomagenesis” Univ Lyon, Université Claude Bernard Lyon1, INSERM 1052, CNRS 5286, Centre Léon Bérard, Centre de recherche en cancérologie de Lyon, Lyon France
- Corresponding author. (M.B.); (C.T.)
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14
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Gordon C, Tessier A, Demir Z, Goldenberg A, Oufadem M, Voisin N, Pingault V, Bienvenu T, Lyonnet S, de Pontual L, Amiel J. The association of severe encephalopathy and question mark ear is highly suggestive of loss of MEF2C
function. Clin Genet 2017; 93:356-359. [DOI: 10.1111/cge.13046] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2017] [Revised: 04/24/2017] [Accepted: 04/25/2017] [Indexed: 12/14/2022]
Affiliation(s)
- C.T. Gordon
- Laboratory of Embryology and Genetics of Congenital Malformations, Institut National de la Santé et de la Recherche Médicale (INSERM) UMR 1163; Institut Imagine; Paris France
- Paris Descartes-Sorbonne Paris Cité University; Institut Imagine; Paris France
| | - A. Tessier
- Laboratory of Embryology and Genetics of Congenital Malformations, Institut National de la Santé et de la Recherche Médicale (INSERM) UMR 1163; Institut Imagine; Paris France
- Paris Descartes-Sorbonne Paris Cité University; Institut Imagine; Paris France
| | - Z. Demir
- Département de Génétique, Hôpital Necker-Enfants Malades; Assistance Publique Hôpitaux de Paris (AP-HP); Paris France
| | - A. Goldenberg
- Service de Génétique, CHU de Rouen; Centre Normand de Génomique Médicale et Médecine Personnalisée; Rouen France
| | - M. Oufadem
- Laboratory of Embryology and Genetics of Congenital Malformations, Institut National de la Santé et de la Recherche Médicale (INSERM) UMR 1163; Institut Imagine; Paris France
- Paris Descartes-Sorbonne Paris Cité University; Institut Imagine; Paris France
| | - N. Voisin
- Laboratory of Embryology and Genetics of Congenital Malformations, Institut National de la Santé et de la Recherche Médicale (INSERM) UMR 1163; Institut Imagine; Paris France
- Paris Descartes-Sorbonne Paris Cité University; Institut Imagine; Paris France
| | - V. Pingault
- Laboratory of Embryology and Genetics of Congenital Malformations, Institut National de la Santé et de la Recherche Médicale (INSERM) UMR 1163; Institut Imagine; Paris France
- Paris Descartes-Sorbonne Paris Cité University; Institut Imagine; Paris France
- Département de Génétique, Hôpital Necker-Enfants Malades; Assistance Publique Hôpitaux de Paris (AP-HP); Paris France
| | - T. Bienvenu
- Laboratoire de biochimie et génétique moléculaire; Hôpital Cochin; Paris France
| | - S. Lyonnet
- Laboratory of Embryology and Genetics of Congenital Malformations, Institut National de la Santé et de la Recherche Médicale (INSERM) UMR 1163; Institut Imagine; Paris France
- Paris Descartes-Sorbonne Paris Cité University; Institut Imagine; Paris France
- Département de Génétique, Hôpital Necker-Enfants Malades; Assistance Publique Hôpitaux de Paris (AP-HP); Paris France
| | - L. de Pontual
- Laboratory of Embryology and Genetics of Congenital Malformations, Institut National de la Santé et de la Recherche Médicale (INSERM) UMR 1163; Institut Imagine; Paris France
- Service de pédiatrie; Hôpital Jean Verdier; Bondy France
| | - J. Amiel
- Laboratory of Embryology and Genetics of Congenital Malformations, Institut National de la Santé et de la Recherche Médicale (INSERM) UMR 1163; Institut Imagine; Paris France
- Paris Descartes-Sorbonne Paris Cité University; Institut Imagine; Paris France
- Département de Génétique, Hôpital Necker-Enfants Malades; Assistance Publique Hôpitaux de Paris (AP-HP); Paris France
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15
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Paul A, Marlin S, Parodi M, Rouillon I, Guerlain J, Pingault V, Couloigner V, Garabedian EN, Denoyelle F, Loundon N. Unilateral Sensorineural Hearing Loss: Medical Context and Etiology. Audiol Neurootol 2017; 22:83-88. [DOI: 10.1159/000474928] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2016] [Accepted: 03/31/2017] [Indexed: 11/19/2022] Open
Abstract
Objective: Unilateral sensorineural hearing loss (USNHL) is known to impact on school performance and social skills during childhood, but the etiologies remain unclear. The aim of this study was to assess various etiologies and to study the clinical contexts in this population. Methods: The study is a retrospective review. Characteristics of hearing loss (HL), audiometric parameters, imaging, and genetic and medical contexts were analyzed. Results: Eighty children were included. USNHL was profound in 68%, could be progressive in 19%, and become bilateral in 7.5% of cases. Inner ear malformations were identified in 41% of cases; cochlear nerve deficiency (CND) was frequent (33%). Cytomegalovirus (CMV) infection and genetic syndromes were confirmed in 10 and 6% of cases, respectively. Conclusion: Long-term hearing follow-up remains useful in USNHL as it can become bilateral. Looking to etiology, MRI should be the gold standard, as CND is frequently observed and screening for CMV infection should be systematic. Genetic etiologies appear to be different compared to bilateral HL. Further genetic research in this domain is needed.
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16
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Mousty E, Issa S, Grosjean F, Col JY, Khau Van Kien P, Perez MJ, Petrov Y, Reboul D, Faubert E, Le Gac MP, Bondurand N, Chiesa J, Pingault V. A homozygous PAX3
mutation leading to severe presentation of Waardenburg syndrome with a prenatal diagnosis. Prenat Diagn 2015; 35:1379-81. [DOI: 10.1002/pd.4703] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2015] [Accepted: 10/03/2015] [Indexed: 11/06/2022]
Affiliation(s)
- Eve Mousty
- Gynécologie Obstétrique; CHRU Caremeau; Nimes France
| | - Sarah Issa
- INSERM, U955, Equipe 6; Créteil France
- Université Paris-Est, UMR_S955, UPEC; Créteil France
| | | | - Jean-Yves Col
- Gynécologie Obstétrique; Centre Hospitalier d'Avignon; Avignon France
| | | | - Marie-Josée Perez
- Département de Génétique Médicale; Hôpital Arnaud de Villeneuve; Montpellier France
| | - Yuliya Petrov
- Laboratoire de Cytogénétique et Génétique Médicale; CHRU Caremeau; Nimes France
| | - Dorothée Reboul
- Laboratoire de Cytogénétique et Génétique Médicale; CHRU Caremeau; Nimes France
| | | | | | - Nadège Bondurand
- INSERM, U955, Equipe 6; Créteil France
- Université Paris-Est, UMR_S955, UPEC; Créteil France
| | - Jean Chiesa
- Laboratoire de Cytogénétique et Génétique Médicale; CHRU Caremeau; Nimes France
| | - Véronique Pingault
- INSERM, U955, Equipe 6; Créteil France
- Université Paris-Est, UMR_S955, UPEC; Créteil France
- Hôpital Henri Mondor, AP-HP; Département de Génétique; Créteil France
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17
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Doubaj Y, Pingault V, Elalaoui SC, Ratbi I, Azouz M, Zerhouni H, Ettayebi F, Sefiani A. A novel mutation in the endothelin B receptor gene in a moroccan family with shah-waardenburg syndrome. Mol Syndromol 2015; 6:44-9. [PMID: 25852447 DOI: 10.1159/000371590] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/18/2014] [Indexed: 11/19/2022] Open
Abstract
Waardenburg syndrome (WS) is a neurocristopathy disorder combining sensorineural deafness and pigmentary abnormalities. The presence of additional signs defines the 4 subtypes. WS type IV, also called Shah-Waardenburg syndrome (SWS), is characterized by the association with congenital aganglionic megacolon (Hirschsprung disease). To date, 3 causative genes have been related to this congenital disorder. Mutations in the EDNRB and EDN3 genes are responsible for the autosomal recessive form of SWS, whereas SOX10 mutations are inherited in an autosomal dominant manner. We report here the case of a 3-month-old Morrocan girl with WS type IV, born to consanguineous parents. The patient had 3 cousins who died in infancy with the same symptoms. Molecular analysis by Sanger sequencing revealed the presence of a novel homozygous missense mutation c.1133A>G (p.Asn378Ser) in the EDNRB gene. The proband's parents as well as the parents of the deceased cousins are heterozygous carriers of this likely pathogenic mutation. This molecular diagnosis allows us to provide genetic counseling to the family and eventually propose prenatal diagnosis to prevent recurrence of the disease in subsequent pregnancies.
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Affiliation(s)
- Yassamine Doubaj
- Département de Génétique Médicale, Institut National d'Hygiène, France ; Centre de Génomique Humaine, Faculté de Médecine et de Pharmacie, Université Mohammed V Souissi, France
| | | | - Siham C Elalaoui
- Département de Génétique Médicale, Institut National d'Hygiène, France ; Centre de Génomique Humaine, Faculté de Médecine et de Pharmacie, Université Mohammed V Souissi, France
| | - Ilham Ratbi
- Centre de Génomique Humaine, Faculté de Médecine et de Pharmacie, Université Mohammed V Souissi, France
| | - Mohamed Azouz
- Service des Urgences Chirurgicales Pédiatriques, Hôpital d'Enfants, Rabat, Morocco, France
| | - Hicham Zerhouni
- Service des Urgences Chirurgicales Pédiatriques, Hôpital d'Enfants, Rabat, Morocco, France
| | - Fouad Ettayebi
- Service des Urgences Chirurgicales Pédiatriques, Hôpital d'Enfants, Rabat, Morocco, France
| | - Abdelaziz Sefiani
- Département de Génétique Médicale, Institut National d'Hygiène, France ; Centre de Génomique Humaine, Faculté de Médecine et de Pharmacie, Université Mohammed V Souissi, France
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18
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Pingault V, Faubert E, Baral V, Gherbi S, Loundon N, Couloigner V, Denoyelle F, Noël-Pétroff N, Ducou Le Pointe H, Elmaleh-Bergès M, Bondurand N, Marlin S. SOX10mutations mimic isolated hearing loss. Clin Genet 2014; 88:352-9. [DOI: 10.1111/cge.12506] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2014] [Revised: 09/17/2014] [Accepted: 09/17/2014] [Indexed: 11/27/2022]
Affiliation(s)
- V. Pingault
- Département de Génétique; Hôpital Henri Mondor, AP-HP; Créteil France
- Equipe 11; INSERM, U955; Créteil France
- UMR_S955; Université Paris-Est, UPEC; Créteil France
| | - E. Faubert
- Département de Génétique; Hôpital Henri Mondor, AP-HP; Créteil France
| | - V. Baral
- Equipe 11; INSERM, U955; Créteil France
- UMR_S955; Université Paris-Est, UPEC; Créteil France
| | - S. Gherbi
- Service de Génétique; Centre de référence Surdités Génétiques; Paris France
| | - N. Loundon
- Service de Génétique; Centre de référence Surdités Génétiques; Paris France
- Service d'ORL; Hôpital Necker, AP-HP; Paris France
| | - V. Couloigner
- Service de Génétique; Centre de référence Surdités Génétiques; Paris France
- Service d'ORL; Hôpital Necker, AP-HP; Paris France
| | - F. Denoyelle
- Service de Génétique; Centre de référence Surdités Génétiques; Paris France
- Service d'ORL; Hôpital Necker, AP-HP; Paris France
| | | | | | | | - N. Bondurand
- Equipe 11; INSERM, U955; Créteil France
- UMR_S955; Université Paris-Est, UPEC; Créteil France
| | - S. Marlin
- Service de Génétique; Centre de référence Surdités Génétiques; Paris France
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19
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Elmaleh-Bergès M, Baumann C, Noël-Pétroff N, Sekkal A, Couloigner V, Devriendt K, Wilson M, Marlin S, Sebag G, Pingault V. Spectrum of temporal bone abnormalities in patients with Waardenburg syndrome and SOX10 mutations. AJNR Am J Neuroradiol 2012; 34:1257-63. [PMID: 23237859 DOI: 10.3174/ajnr.a3367] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Waardenburg syndrome, characterized by deafness and pigmentation abnormalities, is clinically and genetically heterogeneous, consisting of 4 distinct subtypes and involving several genes. SOX10 mutations have been found both in types 2 and 4 Waardenburg syndrome and neurologic variants. The purpose of this study was to evaluate both the full spectrum and relative frequencies of inner ear malformations in these patients. MATERIALS AND METHODS Fifteen patients with Waardenburg syndrome and different SOX10 mutations were studied retrospectively. Imaging was performed between February 2000 and March 2010 for cochlear implant work-up, diagnosis of hearing loss, and/or evaluation of neurologic impairment. Eleven patients had both CT and MR imaging examinations, 3 had MR imaging only, and 1 had CT only. RESULTS Temporal bone abnormalities were bilateral. The most frequent pattern associated agenesis or hypoplasia of ≥1 semicircular canal, an enlarged vestibule, and a cochlea with a reduced size and occasionally an abnormal shape, but with normal partition in the 13/15 cases that could be analyzed. Three patients lacked a cochlear nerve, bilaterally in 2 patients. In addition, associated abnormalities were found when adequate MR imaging sequences were available: agenesis of the olfactory bulbs (7/8), hypoplastic or absent lacrimal glands (11/14), hypoplastic parotid glands (12/14), and white matter signal anomalies (7/13). CONCLUSIONS In the appropriate clinical context, bilateral agenesis or hypoplasia of the semicircular canals or both, associated with an enlarged vestibule and a cochlear deformity, strongly suggests a diagnosis of Waardenburg syndrome linked to a SOX10 mutation.
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Affiliation(s)
- M Elmaleh-Bergès
- Departments of Pediatric Imaging, Hôpital Robert Debré, Paris, France.
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Leger S, Balguerie X, Goldenberg A, Drouin-Garraud V, Amstutz-Montadert I, Cabot A, Joly P, Holder M, Jamieson R, Krause A, Baumann C, Chen H, Nunes L, Dollfus H, Goossens M, Pingault V. Troubles pigmentaires liés à des mutations non tronquantes du domaine basique de MITF. Ann Dermatol Venereol 2011. [DOI: 10.1016/j.annder.2011.09.067] [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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21
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Haddad NM, Ente D, Chouery E, Jalkh N, Mehawej C, Khoueir Z, Pingault V, Mégarbané A. Molecular Study of Three Lebanese and Syrian Patients with Waardenburg Syndrome and Report of Novel Mutations in the EDNRB and MITF Genes. Mol Syndromol 2011; 1:169-175. [PMID: 21373256 DOI: 10.1159/000322891] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/15/2010] [Indexed: 11/19/2022] Open
Abstract
Waardenburg syndrome (WS) is a genetic disorder characterized primarily by depigmentation of the skin and hair, heterochromia of the irides, sensorineural deafness, and sometimes by dystopia canthorum, and Hirschsprung disease. WS presents a large clinical and genetic heterogeneity. Four different types have been individualized and linked to 5 different genes. We report 2 cases of WS type II and 1 case of WS type IV from Lebanon and Syria. The genetic studies revealed 2 novel mutations in the MITF gene of the WS type II cases and 1 novel homozygous mutation in the EDNRB gene of the WS type IV case. This is the first molecular study of patients from the Arab world. Additional cases will enable a more detailed description of the clinical spectrum of Waardenburg syndrome in this region.
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Affiliation(s)
- N M Haddad
- Unité de Génétique Médicale et Laboratoire Associé INSERM UMR-S910, Faculté de Médecine, Université Saint-Joseph, Beirut, Lebanon
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22
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Pingault V, Ente D, Dastot-Le Moal F, Goossens M, Marlin S, Bondurand N. Review and update of mutations causing Waardenburg syndrome. Hum Mutat 2010; 31:391-406. [DOI: 10.1002/humu.21211] [Citation(s) in RCA: 401] [Impact Index Per Article: 28.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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23
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Flori E, Girodon E, Samama B, Becmeur F, Viville B, Girard-Lemaire F, Doray B, Schluth C, Marcellin L, Boehm N, Goossens M, Pingault V. Trisomy 7 mosaicism, maternal uniparental heterodisomy 7 and Hirschsprung's disease in a child with Silver–Russell syndrome. Eur J Hum Genet 2005; 13:1013-8. [PMID: 15915162 DOI: 10.1038/sj.ejhg.5201442] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
Prenatal trisomy 7 is usually a cell culture artifact in amniocytes with normal diploid karyotype at birth and normal fetal outcome. In the same way, true prenatal trisomy 7 mosaicism usually results in a normal child except when trisomic cells persist after birth or when trisomy rescue leads to maternal uniparental disomy, which is responsible for 5.5-7% of patients with Silver-Russell syndrome (SRS). We report here on the unusual association of SRS and Hirschsprung's disease (HSCR) in a patient with maternal uniparental heterodisomy 7 and trisomy 7 mosaicism in intestine and skin fibroblasts. HSCR may be fortuitous given its frequency, multifactorial inheritance and genetic heterogeneity. However, the presence of the trisomy 7 mosaicism in intestine as well as in skin fibroblasts suggests that SRS and HSCR might possibly be related. Such an association might result from either an increased dosage of a nonimprinted gene due to trisomy 7 mosaicism in skin fibroblasts (leading to SRS) and in intestine (leading to HSCR), or from an overexpression, through genomic imprinting, of maternally expressed imprinted allele(s) in skin fibroblasts and intestine or from a combination of trisomy 7 mosaicism and genomic imprinting. This report suggests that the SRS phenotype observed in maternal uniparental disomy 7 (mUPD(7)) patients might also result from an undetected low level of trisomy 7 mosaicism. In order to validate this hypothesis, we propose to perform a conventional and molecular cytogenetic analysis in different tissues every time mUPD7 is displayed.
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Affiliation(s)
- Elisabeth Flori
- Service de Cytogénétique, Fédération de Génétique, Hôpitaux Universitaires de Strasbourg, Strasbourg, France.
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24
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Pingault V, Girard M, Bondurand N, Dorkins H, Van Maldergem L, Mowat D, Shimotake T, Verma I, Baumann C, Goossens M. SOX10 mutations in chronic intestinal pseudo-obstruction suggest a complex physiopathological mechanism. Hum Genet 2002; 111:198-206. [PMID: 12189494 DOI: 10.1007/s00439-002-0765-8] [Citation(s) in RCA: 95] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2002] [Accepted: 05/07/2002] [Indexed: 11/24/2022]
Abstract
The type IV Waardenburg syndrome (WS4), also referred to as Shah-Waardenburg syndrome or Waardenburg-Hirschsprung disease, is characterised by the association of Waardenburg features (WS, depigmentation and deafness) and the absence of enteric ganglia in the distal part of the intestine (Hirschsprung disease). Mutations in the EDN3, EDNRB, and SOX10 genes have been reported in this syndrome. Recently, a new SOX10 mutation was observed in a girl with a neural crest disorder without evidence of depigmentation, but with severe constipation due to a chronic intestinal pseudo-obstruction and persistence of enteric ganglia. To refine the nosology of WS, we studied patients with typical WS4 (including Hirschsprung disease) or with WS and intestinal pseudo-obstruction. We found three SOX10 mutations, one EDNRB and one EDN3 mutations in patients presenting with the classical form of WS4, and two SOX10 mutations in patients displaying chronic intestinal pseudo-obstruction and WS features. These results show that chronic intestinal pseudo-obstruction may be a manifestation associated with WS, and indicate that aganglionosis is not the only mechanism underlying the intestinal dysfunction of patients with SOX10 mutations.
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Affiliation(s)
- Véronique Pingault
- INSERM U468, Génétique Moléculaire et Physiopathologie, and Laboratoire de Biochimie, Hôpital Henri Mondor, 94010 Créteil Cedex, France
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25
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Bondurand N, Girard M, Pingault V, Lemort N, Dubourg O, Goossens M. Human Connexin 32, a gap junction protein altered in the X-linked form of Charcot-Marie-Tooth disease, is directly regulated by the transcription factor SOX10. Hum Mol Genet 2001; 10:2783-95. [PMID: 11734543 DOI: 10.1093/hmg/10.24.2783] [Citation(s) in RCA: 172] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Mutations in SOX10, a transcription modulator crucial in the development of the enteric nervous system (ENS), melanocytes and glial cells, are found in Shah-Waardenburg syndrome (WS4), a neurocristopathy that associates intestinal aganglionosis, pigmentation defects and sensorineural deafness. Expression of MITF and RET, two genes that play important roles during melanocyte and ENS development, respectively, are controlled by SOX10. The observation that some WS4 patients present with myelination defects of the central and peripheral nervous systems correlates with the recent finding that P(0), a major component of the peripheral myelin, is another transcriptional target of SOX10. These phenotypic features suggest that SOX10 could regulate expression of other genes involved in the myelination process as well. Thus, we tested the ability of SOX10 to regulate expression of MBP, PMP22 and Connexin 32, three major proteins of the peripheral myelin. Our study shows that this factor, in synergy with EGR2, strongly activates Cx32 expression in vitro by directly binding to its promoter. In agreement with this finding, SOX10 and EGR2 mutants identified in patients with peripheral myelin defects fail to transactivate the Cx32 promoter. Moreover, we show that a mutation of the Cx32 promoter previously described in a patient with the X-linked form of Charcot-Marie-Tooth (CMTX) disease impairs SOX10 function. In addition to providing new insights into the molecular mechanisms underlying some of the peripheral myelin defects observed in CMTX disease, these results further extend the spectrum of genes that are regulated by SOX10.
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Affiliation(s)
- N Bondurand
- Génétique Moléculaire et Physiopathologie, INSERM U468, et Laboratoire de Biochimie et Génétique Moléculaire, AP-HP, Hôpital Henri Mondor, 94010 Créteil Cedex, France
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26
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Pingault V, Bondurand N, Le Caignec C, Tardieu S, Lemort N, Dubourg O, Le Guern E, Goossens M, Boespflug-Tanguy O. The SOX10 transcription factor: evaluation as a candidate gene for central and peripheral hereditary myelin disorders. J Neurol 2001; 248:496-9. [PMID: 11499640 DOI: 10.1007/s004150170159] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
The SOX10 transcription factor is involved in development of neural crest derivatives and fate determination in glial cells. SOX10 mutations have been found in patients with intestinal aganglionosis and depigmentation with deafness (Waardenburg-Hirschsprung). Associated neurological signs have been reported in some cases, including a patient exhibiting a central and peripheral myelin deficiency. Therefore, we screened for SOX10 mutations in a large cohort of patients with peripheral and central myelin disorders. 56 were affected by classical demyelinating Charcot-Marie-Tooth disease without identified mutations in the genes encoding PNS myelin proteins (PMP22, P0), connexin 32 and the zinc-finger transcription factor, EGR2. 88 patients with undetermined leukodystrophy were selected from a large European prospective study. Associated clinical, magnetic resonance imaging and electrophysiological signs were consistent with a defect in CNS myelination in 83 and with an active degeneration of the CNS myelin in 5. No abnormalities in the proteolipid protein gene (PLP) were found. The absence of SOX100 mutation in this large cohort of patients suggests that this gene is not frequently involved in peripheral or central inherited myelin disorders.
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Affiliation(s)
- V Pingault
- Génétique Moléculaire et Physiopathologie INSERM U468, Hĵpital Henri Mondor, France.
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27
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Pingault V, Bondurand N, Lemort N, Sancandi M, Ceccherini I, Hugot JP, Jouk PS, Goossens M. A heterozygous endothelin 3 mutation in Waardenburg-Hirschsprung disease: is there a dosage effect of EDN3/EDNRB gene mutations on neurocristopathy phenotypes? J Med Genet 2001; 38:205-9. [PMID: 11303518 PMCID: PMC1734825 DOI: 10.1136/jmg.38.3.205] [Citation(s) in RCA: 43] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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28
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Pingault V, Guiochon-Mantel A, Bondurand N, Faure C, Lacroix C, Lyonnet S, Goossens M, Landrieu P. Peripheral neuropathy with hypomyelination, chronic intestinal pseudo-obstruction and deafness: a developmental "neural crest syndrome" related to a SOX10 mutation. Ann Neurol 2000; 48:671-6. [PMID: 11026454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Abstract
We describe the case of a girl with an unusual congenital phenotype, combining peculiar peripheral nerve lesions with hypomyelination, chronic intestinal pseudoobstruction, and deafness. She was found to have a de novo heterozygous frameshift mutation in the gene encoding the SOX10 transcription factor. The likely role of SOX10 in determining the fate of Schwann cells during early embryogenesis may explain the peripheral nervous system developmental disorder observed in this patient.
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Affiliation(s)
- V Pingault
- Génétique Moléculaire et Physiopathologie, Inserm U468, and Laboratoire de Biochimie et Génétique, Assistance Publique Hôpitaux de Paris, Hôpital Henri Mondor, Créteil, France
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29
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Bondurand N, Pingault V, Goerich DE, Lemort N, Sock E, Le Caignec C, Wegner M, Goossens M. Interaction among SOX10, PAX3 and MITF, three genes altered in Waardenburg syndrome. Hum Mol Genet 2000; 9:1907-17. [PMID: 10942418 DOI: 10.1093/hmg/9.13.1907] [Citation(s) in RCA: 318] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Waardenburg syndrome (WS) is an autosomal dominant disorder with an incidence of 1 in 40 000 that manifests with sensorineural deafness and pigmentation defects. It is classified into four types depending on the presence or absence of additional symptoms. WS1 and WS3 are due to mutations in the PAX3 gene whereas some WS2 cases are associated with mutations in the microphthalmia-associated transcription factor (MITF) gene. The WS4 phenotype can result from mutations in the endothelin-B receptor gene (EDNRB), in the gene for its ligand, endothelin-3 (EDN3), or in the SOX10 gene. PAX3 has been shown to regulate MITF gene expression. The recent implication of SOX10 in WS4 prompted us to test whether this transcription factor, known to cooperate in vitro with PAX3, is also able to regulate expression from the MITF promoter. Here we show that SOX10, in synergy with PAX3, strongly activates MITF expression in transfection assays. Analyses revealed that PAX3 and SOX10 interact directly by binding to a proximal region of the MITF promoter containing binding sites for both factors. Moreover, SOX10 or PAX3 mutant proteins fail to transactivate this promoter, providing further evidence that the two genes act in concert to directly regulate expression of MITF. In situ hybridization experiments carried out in the dominant megacolon (DOM:) mouse, confirmed that SOX10 dysfunction impairs MITF: expression as well as melanocytic development and survival. These experiments, which demonstrate an interaction between three of the genes that are altered in WS, could explain the auditory-pigmentary symptoms of this disease.
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Affiliation(s)
- N Bondurand
- Génétique Moléculaire et Physiopathologie, INSERM U468, et Laboratoire de Biochimie et Génétique Moléculaire, AP-HP, Hôpital Henri Mondor, Créteil Cedex, France
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30
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Touraine RL, Attié-Bitach T, Manceau E, Korsch E, Sarda P, Pingault V, Encha-Razavi F, Pelet A, Augé J, Nivelon-Chevallier A, Holschneider AM, Munnes M, Doerfler W, Goossens M, Munnich A, Vekemans M, Lyonnet S. Neurological phenotype in Waardenburg syndrome type 4 correlates with novel SOX10 truncating mutations and expression in developing brain. Am J Hum Genet 2000; 66:1496-503. [PMID: 10762540 PMCID: PMC1378013 DOI: 10.1086/302895] [Citation(s) in RCA: 107] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/1999] [Accepted: 02/16/2000] [Indexed: 12/14/2022] Open
Abstract
Waardenburg syndrome type 4 (WS4), also called Shah-Waardenburg syndrome, is a rare neurocristopathy that results from the absence of melanocytes and intrinsic ganglion cells of the terminal hindgut. WS4 is inherited as an autosomal recessive trait attributable to EDN3 or EDNRB mutations. It is inherited as an autosomal dominant condition when SOX10 mutations are involved. We report on three unrelated WS4 patients with growth retardation and an as-yet-unreported neurological phenotype with impairment of both the central and autonomous nervous systems and occasionally neonatal hypotonia and arthrogryposis. Each of the three patients was heterozygous for a SOX10 truncating mutation (Y313X in two patients and S251X [corrected] in one patient). The extended spectrum of the WS4 phenotype is relevant to the brain expression of SOX10 during human embryonic and fetal development. Indeed, the expression of SOX10 in human embryo was not restricted to neural-crest-derived cells but also involved fetal brain cells, most likely of glial origin. These data emphasize the important role of SOX10 in early development of both neural-crest-derived tissues, namely melanocytes, autonomic and enteric nervous systems, and glial cells of the central nervous system.
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Affiliation(s)
- R L Touraine
- Département de Génétique et Unité de Recherches sur les Handicaps Génétiques de l'Enfant, Hôpital Necker-Enfants Malades, 75743 Paris, France
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31
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Bondurand N, Kuhlbrodt K, Pingault V, Enderich J, Sajus M, Tommerup N, Warburg M, Hennekam RC, Read AP, Wegner M, Goossens M. A molecular analysis of the yemenite deaf-blind hypopigmentation syndrome: SOX10 dysfunction causes different neurocristopathies. Hum Mol Genet 1999; 8:1785-9. [PMID: 10441344 DOI: 10.1093/hmg/8.9.1785] [Citation(s) in RCA: 80] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
The Yemenite deaf-blind hypopigmentation syndrome was first observed in a Yemenite sister and brother showing cutaneous hypopigmented and hyperpigmented spots and patches, microcornea, coloboma and severe hearing loss. A second case, observed in a girl with similar skin symptoms and hearing loss but without microcornea or coloboma, was reported as a mild form of this syndrome. Here we show that a SOX10 missense mutation is responsible for the mild form, resulting in a loss of DNA binding of this transcription factor. In contrast, no SOX10 alteration could be found in the other, severe case of the Yemenite deaf-blind hypopigmentation syndrome. Based on genetic, clinical, molecular and functional data, we suggest that these two cases represent two different syndromes. Moreover, as mutations of the SOX10 transcription factor were previously described in Waardenburg-Hirschsprung disease, these results show that SOX10 mutations cause various types of neurocristopathy.
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Affiliation(s)
- N Bondurand
- Génétique Moléculaire et Physiopathologie, INSERM U468 et Laboratoire de Biochimie et Génétique Moléculaire, AP-HP, Hôpital Henri Mondor, 94010 Créteil Cedex, France
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Kuhlbrodt K, Schmidt C, Sock E, Pingault V, Bondurand N, Goossens M, Wegner M. Functional analysis of Sox10 mutations found in human Waardenburg-Hirschsprung patients. J Biol Chem 1998; 273:23033-8. [PMID: 9722528 DOI: 10.1074/jbc.273.36.23033] [Citation(s) in RCA: 97] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
The Sry-related protein Sox10 is selectively expressed in neural crest cells during early stages of development and in glial cells of the peripheral and central nervous systems during late development and in the adult. Mutation of the Sox10 gene leads to neural crest defects in the Dominant megacolon mouse mutant and to combined Waardenburg-Hirschsprung syndrome in humans. Here, we have studied the four Sox10 mutations found to date in Waardenburg-Hirschsprung patients both in the context of the rat and the human cDNA. Unlike the rat Sox10 protein, which failed to show transcriptional activity on its own, human Sox10 displayed a weak, but reproducible, activity as a transcriptional activator. All mutant Sox10 proteins, including the one that only lacked the 106 last amino acids were deficient in this capacity, indicating that the carboxyl terminus of human Sox10 carries a transactivation domain. Whereas all four mutants failed to transactivate, only two failed to synergistically enhance the activity of other transcription factors. Synergy required both the ability to bind to DNA and a region in the amino-terminal part of Sox10. Those mutants that failed to synergize were unable to bind to DNA. Analysis of the naturally occurring Sox10 mutations not only helps to dissect Sox10 structure, but also allows limited predictions on the severity of the disease.
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Affiliation(s)
- K Kuhlbrodt
- Zentrum für Molekulare Neurobiologie, Universität Hamburg, 20246 Hamburg, Germany
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33
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Bondurand N, Kobetz A, Pingault V, Lemort N, Encha-Razavi F, Couly G, Goerich DE, Wegner M, Abitbol M, Goossens M. Expression of the SOX10 gene during human development. FEBS Lett 1998; 432:168-72. [PMID: 9720918 DOI: 10.1016/s0014-5793(98)00843-6] [Citation(s) in RCA: 89] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
SOX10, a new member of the SOX gene family, is a transcription factor defective in the Dom (Dominant megacolon) mouse and in the human Shah-Waardenburg syndrome. To help unravel its physiological role during human development, we studied SOX10 gene expression in embryonic, fetal, and adult human tissues by Northern blot and in situ hybridization. As in mice, the human SOX10 gene was essentially expressed in the neural crest derivatives that contribute to the formation of the peripheral nervous system, and in the adult central nervous system. Nevertheless, it was more widely expressed in humans than in rodents. The spatial and temporal pattern of SOX10 expression supports an important function in neural crest development.
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Affiliation(s)
- N Bondurand
- Laboratoire de Génétique Moléculaire et Physiopathologie, Institut National de la Santé et de la Recherche Médicale, U.468, Hôpital Henri Mondor, Créteil, France
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34
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Herbarth B, Pingault V, Bondurand N, Kuhlbrodt K, Hermans-Borgmeyer I, Puliti A, Lemort N, Goossens M, Wegner M. Mutation of the Sry-related Sox10 gene in Dominant megacolon, a mouse model for human Hirschsprung disease. Proc Natl Acad Sci U S A 1998; 95:5161-5. [PMID: 9560246 PMCID: PMC20231 DOI: 10.1073/pnas.95.9.5161] [Citation(s) in RCA: 269] [Impact Index Per Article: 10.3] [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] [Indexed: 02/07/2023] Open
Abstract
The spontaneous mouse mutant Dominant megacolon (Dom) is a valuable model for the study of human congenital megacolon (Hirschsprung disease). Here we report that the defect in the Dom mouse is caused by mutation of the gene encoding the Sry-related transcription factor Sox10. This assignment is based on (i) colocalization of the Sox10 gene with the Dom mutation on chromosome 15; (ii) altered Sox10 expression in the gut and in neural-crest derived structures of cranial ganglia of Dom mice; (iii) presence of a frameshift in the Sox10 coding region, and (iv) functional inactivation of the resulting truncated protein. These results identify the transcriptional regulator Sox10 as an essential factor in mouse neural crest development and as a further candidate gene for human Hirschsprung disease, especially in cases where it is associated with features of Waardenburg syndrome.
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Affiliation(s)
- B Herbarth
- Zentrum für Molekulare Neurobiologie, Universität Hamburg, 20246 Hamburg, Germany
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35
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Pingault V, Bondurand N, Kuhlbrodt K, Goerich DE, Préhu MO, Puliti A, Herbarth B, Hermans-Borgmeyer I, Legius E, Matthijs G, Amiel J, Lyonnet S, Ceccherini I, Romeo G, Smith JC, Read AP, Wegner M, Goossens M. SOX10 mutations in patients with Waardenburg-Hirschsprung disease. Nat Genet 1998; 18:171-3. [PMID: 9462749 DOI: 10.1038/ng0298-171] [Citation(s) in RCA: 556] [Impact Index Per Article: 21.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Waardenburg syndrome (WS; deafness with pigmentary abnormalities) and Hirschsprung's disease (HSCR; aganglionic megacolon) are congenital disorders caused by defective function of the embryonic neural crest. WS and HSCR are associated in patients with Waardenburg-Shah syndrome (WS4), whose symptoms are reminiscent of the white coat-spotting and aganglionic megacolon displayed by the mouse mutants Dom (Dominant megacolon), piebald-lethal (sl) and lethal spotting (ls). The sl and ls phenotypes are caused by mutations in the genes encoding the Endothelin-B receptor (Ednrb) and Endothelin 3 (Edn3), respectively. The identification of Sox10 as the gene mutated in Dom mice (B.H. et al., manuscript submitted) prompted us to analyse the role of its human homologue SOX10 in neural crest defects. Here we show that patients from four families with WS4 have mutations in SOX10, whereas no mutation could be detected in patients with HSCR alone. These mutations are likely to result in haploinsufficiency of the SOX10 product. Our findings further define the locus heterogeneity of Waardenburg-Hirschsprung syndromes, and point to an essential role of SOX10 in the development of two neural crest-derived human cell lineages.
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Affiliation(s)
- V Pingault
- INSERM U468, Hôpital Henri Mondor, Creteil, France
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Pingault V, Bondurant N, Goossens M. SOX10, un modulateur de la transcription impliqué dans la maladie de Hirschsprung. Med Sci (Paris) 1998. [DOI: 10.4267/10608/1039] [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: 11/30/2022] Open
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Lasne D, Krenn M, Pingault V, Arnaud E, Fiessinger JN, Aiach M, Rendu F. Interdonor variability of platelet response to thrombin receptor activation: influence of PlA2 polymorphism. Br J Haematol 1997; 99:801-7. [PMID: 9432025 DOI: 10.1046/j.1365-2141.1997.4973300.x] [Citation(s) in RCA: 49] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Considering that platelet response to thrombin receptor activation might be critical for the development of arterial thrombosis, we measured the dense granule release under stimulation by the thrombin receptor activating peptide (TRAP) in a series of 102 healthy volunteers. The threshold TRAP concentration which initiated a secretion ranged from 3 to 20 microM. A good concordance (79%, k=0.677) between two tests performed at a 1 month interval indicated that platelet response to thrombin receptor activation was characteristic of each individual donor. Since the threshold concentration required to initiate secretion corresponded to the threshold concentration which induced a biphasic aggregation, all volunteers were genotyped for the PlA2 polymorphism, the Pro33 variant of GPIIIa. Platelets from subjects with the PlA2 polymorphism required higher TRAP concentrations to aggregate than those from subjects with no PlA2 allele (P=0.0012). However, they also required a higher ADP concentration to aggregate. In order to exclude any influence of GPIIIa polymorphism on TRAP-induced secretion, we studied the variability of platelet response to TRAP among the 77 individuals with no PlA2 allele, and found the same interdonor variability with the same distribution of threshold TRAP concentrations as for the 102 individuals. The results suggest that (i) platelet secretion in response to thrombin receptor activation could be a genetically controlled phenotype independent of the GPIIIa polymorphism; (ii) the PlA2 polymorphism is associated with platelet hypoaggregability.
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Affiliation(s)
- D Lasne
- Laboratoire d'Hémostase, Hôpital Broussais, Paris, France
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Pingault V, Puliti A, Préhu MO, Samadi A, Bondurand N, Goossens M. Human homology and candidate genes for the Dominant megacolon locus, a mouse model of Hirschsprung disease. Genomics 1997; 39:86-9. [PMID: 9027489 DOI: 10.1006/geno.1996.4476] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Hirschsprung disease (HSCR) is a congenital disorder of the enteric nervous system characterized by the absence of enteric ganglia. Three genes for HSCR have been identified: the RET proto-oncogene, the gene coding for the endothelin B receptor (EDNRB), and the endothelin 3 gene (EDN3). In mice, natural and in vitro-induced mutations affecting the Ret, Ednrb, and Edn3 genes generate a phenotype similar to human HSCR. Another model of HSCR disease is the Dominant megacolon (Dom), a spontaneous mouse mutation for which the target gene has not yet been identified. The Dom mutation has been mapped to the middle-terminal region of mouse chromosome 15, between D15Mit68 and D15Mit2. Using new or known polymorphisms for conserved human/mouse genes, we established the homology between the Dom locus and human chromosome 22q12-q13. Two genes, Smstr3 and Adsl, not previously mapped in the mouse genome, were located on mouse Chromosome 15. Three genes (Smstr3, Lgals1, and Pdgfb) are possible Dom candidates, as they do not recombine with the Dom mutation in a 252 Dom/+ animal backcross.
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Affiliation(s)
- V Pingault
- INSERM U91, Hôpital Henri Mondor, Créteil, France
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