Whole-exome sequencing identifies novel pathogenic variants across the ATP7B gene and some modifiers of Wilson's disease phenotype

Simple item page
dc.contributor.authorKluska, Annaen
dc.contributor.authorKulecka, Mariaen
dc.contributor.authorLitwin, Tomaszen
dc.contributor.authorDziezyc, Karolinaen
dc.contributor.authorBalabas, Anetaen
dc.contributor.authorPiatkowska, Magdalenaen
dc.contributor.authorPaziewska, Agnieszkaen
dc.contributor.authorDabrowska, Michalinaen
dc.contributor.authorMikula, Michalen
dc.contributor.authorKaminska, Dianaen
dc.contributor.authorWiernicka, Annaen
dc.contributor.authorSocha, Piotren
dc.contributor.authorCzlonkowska, Annaen
dc.contributor.authorOstrowski, Jerzyen
dc.contributor.funderNational Science Centreen
dc.date.accessioned2023-09-07T15:01:42Z
dc.date.available2023-09-07T15:01:42Z
dc.date.issued2018-09-19en
dc.description.abstractBackground & Aims: Wilson's disease (WD) is an autosomal recessive disorder associated with disease-causing alterations across the ATP7B gene, with highly variable symptoms and age of onset. We aimed to assess whether the clinical variability of WD relates to modifier genes. Methods: A total of 248 WD patients were included, of whom 148 were diagnosed after age of 17. Human exome libraries were constructed using AmpliSeq technology and sequenced using the IonProton platform. Results: ATP7B p.His1069Gln mutation was present in 215 patients, with 112 homozygotes and 103 heterozygotes. Three other mutations: p.Gln1351Ter, p.Trp779Ter and c.3402delC were identified in >10 patients. Among patients, 117 had a homozygous mutation, 101 were compound heterozygotes, 27 had one heterozygous mutation, and 3 other patients had no identifiable pathogenic variant of ATP7B. Sixteen mutations were novel, found as part of a compound mutation or as a sole, homozygous mutation. For disease phenotype prediction, age at diagnosis was a deciding factor, while frameshift allelic variants of ATP7B and being male increased the odds of developing a neurological phenotype. Rare allelic variants in ESD and INO80 increased and decreased chances for the neurological phenotype, respectively, while rare variants in APOE and MBD6 decreased the chances of WD early manifestation. Compound mutations contributed to earlier age of onset. Conclusions: In a Polish population, genetic screening for WD may help genotype for four variants (p.His1069Gln, p.Gln1351Ter, p.Trp779Ter and c.3402delC), with direct sequencing of all ATP7B amplicons as a second diagnostic step. We also identified some allelic variants that may modify a WD phenotype.en
dc.description.sponsorshipNational Science Centre (2013/11/B/NZ2/00130; 2011/02/A/NZ5/00339)en
dc.description.statusPeer revieweden
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationKluska, A, Kulecka, M, Litwin, T, Dziezyc, K., Balabas, A., Piatkowska, M., Paziewska, A., Dabrowska, M., Mikula, M., Kaminska, D., Wiernicka, A., Socha, P., Czlonkowska, A. and Ostrowski, J. (2018) 'Whole-exome sequencing identifies novel pathogenic variants across the ATP7B gene and some modifiers of Wilson's disease phenotype', Liver International, 39(1), pp. 177-186. doi: 10.1111/liv.13967en
dc.identifier.doi10.1111/liv.13967en
dc.identifier.eissn1478-3231en
dc.identifier.endpage186en
dc.identifier.issn1478-3223en
dc.identifier.issued1en
dc.identifier.journaltitleLiver Internationalen
dc.identifier.startpage177en
dc.identifier.urihttps://hdl.handle.net/10468/14935
dc.identifier.volume39en
dc.language.isoenen
dc.publisherJohn Wiley & Sons, Inc.en
dc.rights© 2018, John Wiley & Sons A/S. . This is the accepted version of the following item: Kluska, A, Kulecka, M, Litwin, T, Dziezyc, K., Balabas, A., Piatkowska, M., Paziewska, A., Dabrowska, M., Mikula, M., Kaminska, D., Wiernicka, A., Socha, P., Czlonkowska, A. and Ostrowski, J. (2018) 'Whole-exome sequencing identifies novel pathogenic variants across the ATP7B gene and some modifiers of Wilson's disease phenotype', Liver International, 39(1), pp. 177-186, doi: 10.1111/liv.13967, which has been published in final form at: https://doi.org/10.1111/liv.13967. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.en
dc.subjectATP7Ben
dc.subjectExome sequencingen
dc.subjectModifier genesen
dc.subjectWilson’s diseaseen
dc.titleWhole-exome sequencing identifies novel pathogenic variants across the ATP7B gene and some modifiers of Wilson's disease phenotypeen
dc.typeArticle (peer-reviewed)en
oaire.citation.issue1en
oaire.citation.volume39en
Files
Collections
APC Microbiome Ireland - Journal Articles