1. Delineating the molecular and phenotypic spectrum of the SETD1B-related syndrome
- Author
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Zou Pan, Marielle E. van Gijn, Marjolein H. Willemsen, Mariet W. Elting, Susanne Koning, Daniel C. Koboldt, Rebecca Baud, Renzo Guerrini, Ghayda M. Mirzaa, Laurence E. Walsh, Kim L. McBride, Jenny Thies, Andrew E. Timms, Shaoping Huang, Gretchen E. Rosso, Joshua Scheck, Haley McConkey, Matthew A. Deardorff, Peter D. Turnpenny, Suzanne M. Leal, Sanjay M. Sisodiya, Lin Yang, Melissa Lees, Cacha M.P.C.D. Peeters-Scholte, Henry Houlden, Marielle Alders, J. Austin Hamm, Karla A. Peña-Guerra, Richard E. Person, Leena Lauronen, Hannah K. Robinson, Theresa Mihalic Mosher, Alexandra Garza-Flores, Victoria Harrison, Tuomo Määttä, Daniela Q.C.M. Barge-Schaapveld, James R. Lupski, Houda Zghal Elloumi, Francisco J. Guzmán-Vega, Tamison Jewett, Siddharth Banka, Barbara W. van Paassen, J. Lawrence Merritt, Angela Sun, Yana Lara-Taranchenko, Irma Järvelä, Ivan K. Chinn, Claudia A. L. Ruivenkamp, Nicholas M. Allen, Xiaodong Wang, Amy Crunk, Selina H. Banu, Maura R.Z. Ruzhnikov, Jeffery McGlothlin, Mashaya Zaman, Adam Jackson, Stefan T. Arold, Bert B.A. de Vries, Jing Peng, Lauren Schenck, Isabelle Schrauwen, Marjon van Slegtenhorst, Luis Alberto Pedroza, Bekim Sadikovic, Annalisa Vetro, Reshmi Ramakrishnan, Kristin G. Monaghan, Kelly J. Cardona-Londoño, Catherine Quindipan, Kristina Lanko, Rolph Pfundt, Caroline M. Kehoe, Martino Montomoli, Christian Gilissen, Hamid Galehdari, Yolande van Bever, Jennifer Keller-Ramey, Sadegheh Haghshenas, Neda Mazaheri, Stephanie Efthymiou, Reza Maroofian, Lewis Pang, Fleur Vansenne, Abeltje M. Polstra, Kara C. Klemp, Marjolein J.A. Weerts, Xi Lin, Julia Baptista, Tahsin Stefan Barakat, Anneke Kievit, Adi Reich, Stephen R. Braddock, Shehla Mohammed, Abbey M. Putnam, Jennifer Kerkhof, Matthew Pastore, Sally Ann Lynch, Graduate School, ANS - Neuroinfection & -inflammation, Human Genetics, ACS - Pulmonary hypertension & thrombosis, ARD - Amsterdam Reproduction and Development, MUMC+: DA KG Polikliniek (9), RS: FHML non-thematic output, Human genetics, VU University medical center, Amsterdam Reproduction & Development (AR&D), Clinical Genetics, Irma Järvelä / Principal Investigator, Medicum, Department of Medical and Clinical Genetics, HUS Medical Imaging Center, Clinicum, BioMag Laboratory, HUS Children and Adolescents, and Kliinisen neurofysiologian yksikkö
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Male ,INTELLECTUAL DISABILITY ,GENES ,Language delay ,VARIANTS ,Biology ,Bioinformatics ,3124 Neurology and psychiatry ,Article ,12Q24.31 ,SETD1B ,03 medical and health sciences ,Epilepsy ,0302 clinical medicine ,Neurodevelopmental disorder ,Seizures ,Intellectual disability ,medicine ,Humans ,MICRODELETION ,Global developmental delay ,Genetics (clinical) ,030304 developmental biology ,0303 health sciences ,Neurodevelopmental disorders Donders Center for Medical Neuroscience [Radboudumc 7] ,3112 Neurosciences ,RECOGNITION ,Metabolic Disorders Radboud Institute for Molecular Life Sciences [Radboudumc 6] ,Histone-Lysine N-Methyltransferase ,medicine.disease ,Penetrance ,Human genetics ,Phenotype ,Neurodevelopmental Disorders ,MOTIF ,Autism ,METHYLTRANSFERASE ,3111 Biomedicine ,030217 neurology & neurosurgery - Abstract
Contains fulltext : 243955.pdf (Publisher’s version ) (Open Access) PURPOSE: Pathogenic variants in SETD1B have been associated with a syndromic neurodevelopmental disorder including intellectual disability, language delay, and seizures. To date, clinical features have been described for 11 patients with (likely) pathogenic SETD1B sequence variants. This study aims to further delineate the spectrum of the SETD1B-related syndrome based on characterizing an expanded patient cohort. METHODS: We perform an in-depth clinical characterization of a cohort of 36 unpublished individuals with SETD1B sequence variants, describing their molecular and phenotypic spectrum. Selected variants were functionally tested using in vitro and genome-wide methylation assays. RESULTS: Our data present evidence for a loss-of-function mechanism of SETD1B variants, resulting in a core clinical phenotype of global developmental delay, language delay including regression, intellectual disability, autism and other behavioral issues, and variable epilepsy phenotypes. Developmental delay appeared to precede seizure onset, suggesting SETD1B dysfunction impacts physiological neurodevelopment even in the absence of epileptic activity. Males are significantly overrepresented and more severely affected, and we speculate that sex-linked traits could affect susceptibility to penetrance and the clinical spectrum of SETD1B variants. CONCLUSION: Insights from this extensive cohort will facilitate the counseling regarding the molecular and phenotypic landscape of newly diagnosed patients with the SETD1B-related syndrome.
- Published
- 2021
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