학술논문

Novel diagnostic DNA methylation episignatures expand and refine the epigenetic landscapes of Mendelian disorders
Document Type
article
Author
Michael A. LevyHaley McConkeyJennifer KerkhofMouna Barat-HouariSara BargiacchiElisa BiaminoMaría Palomares BraloGerarda CappuccioAndrea CiolfiAngus ClarkeBarbara R. DuPontMariet W. EltingLaurence FaivreTimothy FeeRobin S. FletcherFlorian CherikAidin ForoutanMichael J. FriezCristina GervasiniSadegheh HaghshenasBenjamin A. HiltonZandra JenkinsSimranpreet KaurSuzanne LewisRaymond J. LouieSilvia MaitzDonatella MilaniAngela T. MorganRenske OegemaElsebet ØstergaardNathalie Ruiz PallaresMaria PiccioneSimone PizziAstrid S. PlompCathryn PoultonJack ReillyRaissa RelatorRocio RiusStephen RobertsonKathleen RooneyJustine RousseauGijs W.E. SantenFernando Santos-SimarroJosephine SchijnsGabriella Maria SqueoMiya St JohnChristel Thauvin-RobinetGiovanna TraficantePleuntje J. van der SluijsSamantha A. VerganoNiels VosKellie K. WaldenDimitar AzmanovTugce BalciSiddharth BankaJozef GeczPeter HennemanJennifer A. LeeMarcel M.A.M. MannensTony RoscioliVictoria SiuDavid J. AmorGareth BaynamEric G. BendKym BoycottNicola Brunetti-PierriPhilippe M. CampeauJohn ChristodoulouDavid DymentNatacha EsberJill A. FahrnerMark D. FlemingDavid GenevieveKristin D. KerrnohanAlisdair McNeillLeonie A. MenkeGiuseppe MerlaPaolo PronteraCheryl Rockman-GreenbergCharles SchwartzSteven A. SkinnerRoger E. StevensonAntonio VitobelloMarco TartagliaMarielle AldersMatthew L. TedderBekim Sadikovic
Source
HGG Advances, Vol 3, Iss 1, Pp 100075- (2022)
Subject
Episignatures
Neurodevelopmental disorders
DNA methylation
Epigenetics
Clinical diagnostics
Genetics
QH426-470
Language
English
ISSN
2666-2477
Abstract
Summary: Overlapping clinical phenotypes and an expanding breadth and complexity of genomic associations are a growing challenge in the diagnosis and clinical management of Mendelian disorders. The functional consequences and clinical impacts of genomic variation may involve unique, disorder-specific, genomic DNA methylation episignatures. In this study, we describe 19 novel episignature disorders and compare the findings alongside 38 previously established episignatures for a total of 57 episignatures associated with 65 genetic syndromes. We demonstrate increasing resolution and specificity ranging from protein complex, gene, sub-gene, protein domain, and even single nucleotide-level Mendelian episignatures. We show the power of multiclass modeling to develop highly accurate and disease-specific diagnostic classifiers. This study significantly expands the number and spectrum of disorders with detectable DNA methylation episignatures, improves the clinical diagnostic capabilities through the resolution of unsolved cases and the reclassification of variants of unknown clinical significance, and provides further insight into the molecular etiology of Mendelian conditions.