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Functional correlation of genome‐wide DNA methylation profiles in genetic neurodevelopmental disorders

2022; Wiley; Volume: 43; Issue: 11 Linguagem: Inglês

10.1002/humu.24446

1098-1004

Michael A. Levy, Raissa Relator, Haley McConkey, Erinija Pranckevičienė, Jennifer Kerkhof, Mouna Barat‐Houari, Sara Bargiacchi, Elisa Biamino, María Palomares‐Bralo, Gerarda Cappuccio, Andrea Ciolfi, Angus Clarke, Barbara R. DuPont, Mariet W. Elting, Laurence Faivre, Timothy Fee, Marco Ferilli, Robin S. Fletcher, Florian Cherick, Aidin Foroutan, Michael J. Friez, Cristina Gervasini, Sadegheh Haghshenas, Benjamin Hilton, Zandra A. Jenkins, Simranpreet Kaur, M. E. Suzanne Lewis, Raymond J. Louie, Silvia Maitz, Donatella Milani, Angela Morgan, Renske Oegema, Elsebet Østergaard, Nathalie Pallarès, Maria Piccione, Astrid S. Plomp, Cathryn Poulton, Jack Reilly, Rocío Rius, Stephen P. Robertson, Kathleen Rooney, Justine Rousseau, Gijs W.E. Santen, Fernando Santos‐Simarro, Josephine Schijns, Gabriella Maria Squeo, Miya St John, Christel Thauvin‐Robinet, Giovanna Traficante, Pleuntje J. van der Sluijs, Samantha A. Schrier Vergano, Niels Vos, Kellie K. Walden, Dimitar N. Azmanov, Tuğçe B. Balcı, Siddharth Banka, Jozef Gécz, Peter Henneman, Jennifer A. Lee, Marcel M.A.M. Mannens, Tony Roscioli, Victoria Mok Siu, David J. Amor, Gareth Baynam, Eric G. Bend, Kym M. Boycott, Nicola Brunetti‐Pierri, Philippe M. Campeau, Dominique Campion, John Christodoulou, David A. Dyment, Natacha Esber, Jill A. Fahrner, Mark D. Fleming, David Geneviève, Delphine Héron, Thomas Husson, Kristin D. Kernohan, Alisdair McNeill, Leonie A. Menke, Giuseppe Merla, Paolo Prontera, Cheryl R. Greenberg, Charles E. Schwartz, Steven A. Skinner, Roger E. Stevenson, Marie Vincent, Antonio Vitobello, Marco Tartaglia, Mariëlle Alders, Matthew L. Tedder, Bekim Sadiković,

Genetic Syndromes and Imprinting

An expanding range of genetic syndromes are characterized by genome-wide disruptions in DNA methylation profiles referred to as episignatures. Episignatures are distinct, highly sensitive, and specific biomarkers that have recently been applied in clinical diagnosis of genetic syndromes. Episignatures are contained within the broader disorder-specific genome-wide DNA methylation changes, which can share significant overlap among different conditions. In this study, we performed functional genomic assessment and comparison of disorder-specific and overlapping genome-wide DNA methylation changes related to 65 genetic syndromes with previously described episignatures. We demonstrate evidence of disorder-specific and recurring genome-wide differentially methylated probes (DMPs) and regions (DMRs). The overall distribution of DMPs and DMRs across the majority of the neurodevelopmental genetic syndromes analyzed showed substantial enrichment in gene promoters and CpG islands, and under-representation of the more variable intergenic regions. Analysis showed significant enrichment of the DMPs and DMRs in gene pathways and processes related to neurodevelopment, including neurogenesis, synaptic signaling and synaptic transmission. This study expands beyond the diagnostic utility of DNA methylation episignatures by demonstrating correlation between the function of the mutated genes and the consequent genomic DNA methylation profiles as a key functional element in the molecular etiology of genetic neurodevelopmental disorders.