AMPA receptor GluA2 subunit defects are a cause of neurodevelopmental disorders.
Por:
Salpietro V, Dixon CL, Guo H, Bello OD, Vandrovcova J, Efthymiou S, Maroofian R, Heimer G, Burglen L, Valence S, Torti E, Hacke M, Rankin J, Tariq H, Colin E, Procaccio V, Striano P, Mankad K, Lieb A, Chen S, Pisani L, Bettencourt C, Männikkö R, Manole A, Brusco A, Grosso E, Ferrero GB, Armstrong-Moron J, Gueden S, Bar-Yosef O, Tzadok M, Monaghan KG, Santiago-Sim T, Person RE, Cho MT, Willaert R, Yoo Y, Chae JH, Quan Y, Wu H, Wang T, Bernier RA, Xia K, Blesson A, Jain M, Motazacker MM, Jaeger B, Schneider AL, Boysen K, Muir AM, Myers CT, Gavrilova RH, Gunderson L, Schultz-Rogers L, Klee EW, Dyment D, Osmond M, Parellada M, Llorente C, Gonzalez-Peñas J, Carracedo A, Van Haeringen A, Ruivenkamp C, Nava C, Heron D, Nardello R, Iacomino M, Minetti C, Skabar A, Fabretto A, SYNAPS Study Group, Raspall-Chaure M, Chez M, Tsai A, Fassi E, Shinawi M, Constantino JN, De Zorzi R, Fortuna S, Kok F, Keren B, Bonneau D, Choi M, Benzeev B, Zara F, Mefford HC, Scheffer IE, Clayton-Smith J, Macaya A, Rothman JE, Eichler EE, Kullmann DM and Houlden H
Publicada:
12 jul 2019
Ahead of Print:
12 jul 2019
Resumen:
AMPA receptors (AMPARs) are tetrameric ligand-gated channels made up of combinations of GluA1-4 subunits encoded by GRIA1-4 genes. GluA2 has an especially important role because, following post-transcriptional editing at the Q607 site, it renders heteromultimeric AMPARs Ca(2+)-impermeable, with a linear relationship between current and trans-membrane voltage. Here, we report heterozygous de novo GRIA2 mutations in 28 unrelated patients with intellectual disability (ID) and neurodevelopmental abnormalities including autism spectrum disorder (ASD), Rett syndrome-like features, and seizures or developmental epileptic encephalopathy (DEE). In functional expression studies, mutations lead to a decrease in agonist-evoked current mediated by mutant subunits compared to wild-type channels. When GluA2 subunits are co-expressed with GluA1, most GRIA2 mutations cause a decreased current amplitude and some also affect voltage rectification. Our results show that de-novo variants in GRIA2 can cause neurodevelopmental disorders, complementing evidence that other genetic causes of ID, ASD and DEE also disrupt glutamatergic synaptic transmission.
Filiaciones:
Salpietro V:
Department of Neuromuscular Disorders, UCL Queen Square Institute of Neurology, London, WC1N 3BG, UK
Pediatric Neurology and Muscular Diseases Unit, IRCCS Istituto "Giannina Gaslini", 16147, Genoa, Italy
Department of Neurosciences, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health, University of Genoa, 16132, Genoa, Italy
Dixon CL:
Department of Clinical and Experimental Epilepsy, UCL Queen Square Institute of Neurology, London, WC1N 3BG, UK
Guo H:
Department of Genome Sciences, University of Washington School of Medicine, Seattle, Washington, 98195, USA
Center for Medical Genetics Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, 410083, Hunan, China
Bello OD:
Department of Clinical and Experimental Epilepsy, UCL Queen Square Institute of Neurology, London, WC1N 3BG, UK
Vandrovcova J:
Department of Neuromuscular Disorders, UCL Queen Square Institute of Neurology, London, WC1N 3BG, UK
Efthymiou S:
Department of Neuromuscular Disorders, UCL Queen Square Institute of Neurology, London, WC1N 3BG, UK
Department of Clinical and Experimental Epilepsy, UCL Queen Square Institute of Neurology, London, WC1N 3BG, UK
Maroofian R:
Department of Neuromuscular Disorders, UCL Queen Square Institute of Neurology, London, WC1N 3BG, UK
Heimer G:
Pediatric Neurology Unit, Safra Children's Hospital, Sheba Medical Center and Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, 526121, Ramat Gan, Israel
Burglen L:
Centre de Référence des Malformations et Maladies Congénitales du Cervelet, Département de Génétique et Embryologie Médicale, APHP, Hôpital Trousseau, 75012, Paris, France
Valence S:
Centre de Référence des Malformations et Maladies Congénitales du Cervelet, Service de Neurologie Pédiatrique, APHP, Hôpital Trousseau, 75012, Paris, France
Torti E:
GeneDx, Gaithersburg, MD, 20877, USA
Hacke M:
Biochemistry Center, Heidelberg University, D-69120, Heidelberg, Germany
Rankin J:
Royal Devon and Exeter NHS Foundation Trust, Exeter, EX1 2ED, UK
Tariq H:
Department of Neuromuscular Disorders, UCL Queen Square Institute of Neurology, London, WC1N 3BG, UK
Colin E:
Department of Biochemistry and Genetics, University Hospital, 49933, Angers, France
MitoLab, UMR CNRS 6015-INSERM U1083, MitoVasc Institute, Angers University, 49100, Angers, France
Procaccio V:
Department of Biochemistry and Genetics, University Hospital, 49933, Angers, France
MitoLab, UMR CNRS 6015-INSERM U1083, MitoVasc Institute, Angers University, 49100, Angers, France
Striano P:
Pediatric Neurology and Muscular Diseases Unit, IRCCS Istituto "Giannina Gaslini", 16147, Genoa, Italy
Department of Neurosciences, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health, University of Genoa, 16132, Genoa, Italy
Mankad K:
Great Ormond Street Hospital for Children, London, WC1N 3JH, UK
Lieb A:
Department of Clinical and Experimental Epilepsy, UCL Queen Square Institute of Neurology, London, WC1N 3BG, UK
Chen S:
Division of Medical Genetics, Northwell Health/Hofstra University SOM, New York, 11020, USA
Pisani L:
Division of Medical Genetics, Northwell Health/Hofstra University SOM, New York, 11020, USA
Bettencourt C:
Department of Clinical and Movement Neurosciences and Queen Square Brain Bank for Neurological Disorders, UCL Queen Square Institute of Neurology, London, WC1N 1PJ, UK
Männikkö R:
Department of Neuromuscular Disorders, UCL Queen Square Institute of Neurology, London, WC1N 3BG, UK
Manole A:
Department of Neuromuscular Disorders, UCL Queen Square Institute of Neurology, London, WC1N 3BG, UK
Brusco A:
Department of Medical Sciences, Medical Genetics Unit, University of Torino, 10126, Torino, Italy
Grosso E:
Department of Medical Sciences, Medical Genetics Unit, University of Torino, 10126, Torino, Italy
Ferrero GB:
Department of Public Health and Pediatrics, University of Torino, 10126, Torino, Italy
Armstrong-Moron J:
Unit of Medical and Molecular Genetics, University Hospital Sant Joan de Deu Barcelona, 08950, Barcelona, Spain
Gueden S:
Unit of Neuropediatrics, University Hospital, Angers Cedex, 49933, France
Bar-Yosef O:
Pediatric Neurology Unit, Safra Children's Hospital, Sheba Medical Center and Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, 526121, Ramat Gan, Israel
Tzadok M:
Pediatric Neurology Unit, Safra Children's Hospital, Sheba Medical Center and Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, 526121, Ramat Gan, Israel
Monaghan KG:
GeneDx, Gaithersburg, MD, 20877, USA
Santiago-Sim T:
GeneDx, Gaithersburg, MD, 20877, USA
Person RE:
GeneDx, Gaithersburg, MD, 20877, USA
Cho MT:
GeneDx, Gaithersburg, MD, 20877, USA
Willaert R:
GeneDx, Gaithersburg, MD, 20877, USA
Yoo Y:
Department of Biomedical Sciences, Seoul National University, Seoul, 03080, South Korea
Chae JH:
Department of Pediatrics, Seoul National University, Seoul, 03080, South Korea
Quan Y:
Center for Medical Genetics Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, 410083, Hunan, China
Wu H:
Center for Medical Genetics Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, 410083, Hunan, China
Wang T:
Department of Genome Sciences, University of Washington School of Medicine, Seattle, Washington, 98195, USA
Center for Medical Genetics Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, 410083, Hunan, China
Bernier RA:
Department of Psychiatry, University of Washington, Seattle, WA, 98195, USA
Xia K:
Center for Medical Genetics Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, 410083, Hunan, China
Blesson A:
Center for Autism and Related Disorders, Kennedy Krieger Institute, Baltimore, Maryland, 21211, USA
Jain M:
Center for Autism and Related Disorders, Kennedy Krieger Institute, Baltimore, Maryland, 21211, USA
Motazacker MM:
Department of Clinical Genetics, University of Amsterdam, Meibergdreef 9, 1105, Amsterdam, Netherlands
Jaeger B:
Department of Pediatric Neurology, Amsterdam UMC, 1105, Amsterdam, Netherlands
Schneider AL:
Epilepsy Research Centre, Department of Medicine, University of Melbourne, Austin Health, Melbourne, Victoria, 3084, Australia
Boysen K:
Epilepsy Research Centre, Department of Medicine, University of Melbourne, Austin Health, Melbourne, Victoria, 3084, Australia
Muir AM:
Department of Pediatrics, University of Washington, Seattle, WA, 98195, USA
Myers CT:
Department of Pediatrics, Division of Genetic Medicine, University of Washington, Seattle, WA, 98195, USA
Gavrilova RH:
Department of Clinical Genomics, Mayo Clinic, Rochester, 55902, MN, USA
Gunderson L:
Department of Clinical Genomics, Mayo Clinic, Rochester, 55902, MN, USA
Schultz-Rogers L:
Department of Clinical Genomics, Mayo Clinic, Rochester, 55902, MN, USA
Klee EW:
Department of Clinical Genomics, Mayo Clinic, Rochester, 55902, MN, USA
Dyment D:
Children's Hospital of Eastern Ontario Research Institute, University of Ottawa, Ottawa, K1H 8L1, Canada
Osmond M:
Children's Hospital of Eastern Ontario Research Institute, University of Ottawa, Ottawa, K1H 8L1, Canada
Department of Human Genetics, McGill University Health Centre, Montréal, QC, H4A 3J1, Canada
Genome Québec Innovation Center, Montréal, QC, H3A 0G1, Canada
Parellada M:
Child and Adolescent Psychiatry Department, Hospital General Universitario Gregorio Marañón, School of Medicine, Universidad Complutense, IiSGM, CIBERSAM, 28007, Madrid, Spain
Llorente C:
Institute of Psychiatry and Mental Health, Hospital General Universitario Gregorio Maranon, Universidad Complutense, CIBERSAM, 28007, Madrid, Spain
Gonzalez-Peñas J:
Hospital Gregorio Maranon, IiSGM, School of Medicine, Calle Dr Esquerdo, 46, 28007, Madrid, Spain
Carracedo A:
Grupo de Medicina Xenómica, Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), CIMUS, Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain
Fundación Pública Galega de Medicina Xenómica- IDIS- Servicio Galego de Saúde (SERGAS), 15706, 15782, Santiago de Compostela, Spain
Van Haeringen A:
Department of Clinical Genetics, Leiden University Medical Center, 2333 ZA, Leiden, Netherlands
Ruivenkamp C:
Department of Clinical Genetics, Leiden University Medical Center, 2333 ZA, Leiden, Netherlands
Nava C:
Department of Genetics, Assistance Publique - Hôpitaux de Paris, University Hôpital Pitié-Salpêtrière, 75013, Paris, France
Heron D:
Department of Genetics, Assistance Publique - Hôpitaux de Paris, University Hôpital Pitié-Salpêtrière, 75013, Paris, France
Nardello R:
Department of Health Promotion,Mother and Child Care, Internal Medicine and Medical Specialities "G. D'Alessandro", University of Palermo, 90133, Palermo, Italy
Iacomino M:
Laboratory of Neurogenetics and Neuroscience, IRCCS Istituto "Giannina Gaslini", 16147, Genova, Italy
Minetti C:
Pediatric Neurology and Muscular Diseases Unit, IRCCS Istituto "Giannina Gaslini", 16147, Genoa, Italy
Department of Neurosciences, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health, University of Genoa, 16132, Genoa, Italy
Skabar A:
Institute for Maternal and Child Health, IRCCS "Burlo Garofolo", University of Trieste, 34134, Trieste, Italy
Fabretto A:
Institute for Maternal and Child Health, IRCCS "Burlo Garofolo", University of Trieste, 34134, Trieste, Italy
Raspall-Chaure M:
Department of Pediatric Neurology, University Hospital Vall d'Hebron, Universitat Autònoma de Barcelona, 08035, Barcelona, Spain
Chez M:
Neuroscience Medical Group, 1625 Stockton Boulevard, Suite 104, Sacramento, CA, 95816, USA
Tsai A:
Department of Genetics and Inherited Metabolic diseases, Children's Hospital Colorado, Aurora, CO, 80045, USA
Fassi E:
Department of Pediatrics, Washington University School of Medicine, St. Louis, MO, 63110, USA
Shinawi M:
Department of Pediatrics, Washington University School of Medicine, St. Louis, MO, 63110, USA
Constantino JN:
William Greenleaf Eliot Division of Child Adolescent Psychiatry, Department of Psychiatry, Washington University School of Medicine, St. Louis, MO, 63110, USA
De Zorzi R:
Department of Chemical and Pharmaceutical Sciences, University of Trieste, 34134, Trieste, Italy
Fortuna S:
Department of Chemical and Pharmaceutical Sciences, University of Trieste, 34134, Trieste, Italy
Kok F:
Neurogenetics Unit, Department of Neurology, University of Sao Paulo, Sao Paulo, 01308-000, Brazil
Mendelics Genomic Analysis, Sao Paulo, SP, 04013-000, Brazil
Keren B:
Department of Genetics, Assistance Publique - Hôpitaux de Paris, University Hôpital Pitié-Salpêtrière, 75013, Paris, France
Bonneau D:
Department of Biochemistry and Genetics, University Hospital, 49933, Angers, France
MitoLab, UMR CNRS 6015-INSERM U1083, MitoVasc Institute, Angers University, 49100, Angers, France
Choi M:
Department of Biomedical Sciences, Seoul National University, Seoul, 03080, South Korea
Benzeev B:
Pediatric Neurology Unit, Safra Children's Hospital, Sheba Medical Center and Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, 526121, Ramat Gan, Israel
Zara F:
Laboratory of Neurogenetics and Neuroscience, IRCCS Istituto "Giannina Gaslini", 16147, Genova, Italy
Mefford HC:
Department of Pediatrics, University of Washington, Seattle, WA, 98195, USA
Scheffer IE:
Epilepsy Research Centre, Department of Medicine, University of Melbourne, Austin Health, Melbourne, Victoria, 3084, Australia
Clayton-Smith J:
Centre for Genomic Medicine, Manchester Academic Health Sciences Centre, Central Manchester University Hospitals NHS Foundation Trust, Lancashire, M13 9WL, UK
Division of Evolution and Genomic Sciences, School of Biological Sciences, University of Manchester, Manchester, M13 9WL, UK
Macaya A:
Department of Pediatric Neurology, University Hospital Vall d'Hebron, Universitat Autònoma de Barcelona, 08035, Barcelona, Spain
Rothman JE:
Department of Clinical and Experimental Epilepsy, UCL Queen Square Institute of Neurology, London, WC1N 3BG, UK
Department of Cell Biology, Yale University School of Medicine, New Haven, CT, 06520, USA
Eichler EE:
Department of Genome Sciences, University of Washington School of Medicine, Seattle, Washington, 98195, USA
Howard Hughes Medical Institute, University of Washington, Seattle, WA, 98195, USA
Kullmann DM:
Department of Clinical and Experimental Epilepsy, UCL Queen Square Institute of Neurology, London, WC1N 3BG, UK.
Houlden H:
Department of Neuromuscular Disorders, UCL Queen Square Institute of Neurology, London, WC1N 3BG, UK.
Green Published, Green Accepted, gold
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