Abstract
Mutations in more than 150 genes are responsible for inherited hearing loss, with thousands of different, severe causal alleles that vary among populations. The Israeli Jewish population includes communities of diverse geographic origins, revealing a wide range of deafness-associated variants and enabling clinical characterization of the associated phenotypes. Our goal was to identify the genetic causes of inherited hearing loss in this population, and to determine relationships among genotype, phenotype, and ethnicity. Genomic DNA samples from informative relatives of 88 multiplex families, all of self-identified Jewish ancestry, with either non-syndromic or syndromic hearing loss, were sequenced for known and candidate deafness genes using the HEar-Seq gene panel. The genetic causes of hearing loss were identified for 60% of the families. One gene was encountered for the first time in human hearing loss: ATOH1 (Atonal), a basic helix-loop-helix transcription factor responsible for autosomal dominant progressive hearing loss in a five-generation family. Our results show that genomic sequencing with a gene panel dedicated to hearing loss is effective for genetic diagnoses in a diverse population. Comprehensive sequencing enables well-informed genetic counseling and clinical management by medical geneticists, otolaryngologists, audiologists, and speech therapists and can be integrated into newborn screening for deafness.
Original language | English |
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Pages (from-to) | 353-364 |
Number of pages | 12 |
Journal | Clinical Genetics |
Volume | 98 |
Issue number | 4 |
DOIs | |
State | Published - 1 Oct 2020 |
Externally published | Yes |
Bibliographical note
Publisher Copyright:© 2020 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd
Funding
Ernest and Bonnie Beutler Research Program of Excellence in Genomic Medicine; Hedrich Charitable Trust; Intramural Program at the NIDCD, Grant/Award Number: DC000059; Israel Science Foundation within the Israel Precision Medicine Partnership Program, Grant/Award Number: 3499/19; National Institutes of Health/NIDCD, Grant/Award Number: R01DC011835; University of Washington Virginia Bloedel Hearing Research Institute; University of Washington; Israel Science Foundation Funding information The authors wish to thank all the families for their participation in this study. This research was supported by grants from the National Institutes of Health/National Institute of Deafness and Communication Disorders (NIDCD) R01DC011835 (K.B.A., M.‐C.K., M.N.K.), the Intramural Program at the NIDCD, DC000059 (M.W.K.), the Israel Science Foundation, 3499/19 within the Israel Precision Medicine Partnership Program (K.B.A.), the Ernest and Bonnie Beutler Research Program of Excellence in Genomic Medicine (K.B.A.), the Hedrich Charitable Trust (K.B.A.), and travel grants from the University of Washington Virginia Bloedel Hearing Research Institute (K.B.A.).
Funders | Funder number |
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Hedrich Charitable Trust | |
University of Washington Virginia Bloedel Hearing Research Institute | |
National Institutes of Health | |
National Institute on Deafness and Other Communication Disorders | DC000059, R01DC011835 |
University of Washington | |
Israel Science Foundation | 3499/19 |
Keywords
- deafness
- diagnostics
- gene panel
- genomics
- hearing
- massively parallel sequencing
- next-generation sequencing