Genetics of Wilson disease and Wilson-like phenotype in a clinical series from eastern Spain

[EN] Wilson's disease (WD) is an autosomal recessive disorder caused by ATP7B mutations. Subjects with only one mutation may show clinical signs and individuals with biallelic changes may remain asymptomatic. We aimed to achieve a conclusive genetic diagnosis for 34 patients clinically diag...

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Detalhes bibliográficos
Autores: Sánchez-Monteagudo, Ana, Álvarez-Sauco, María, Sastre, Isabel, Martínez-Torres, Irene, Lupo,Vincenzo, Berenguer, Marina, Espinós-Armero, Carmen Ángeles
Tipo de documento: artigo
Data de publicação:2020
País:España
Recursos:Universitat Politècnica de València (UPV)
Repositório:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
Idioma:inglês
OAI Identifier:oai:riunet.upv.es:10251/201211
Acesso em linha:https://riunet.upv.es/handle/10251/201211
Access Level:Acceso aberto
Palavra-chave:ATP7B gene
CCDC115 gene
Genetic diagnosis
Targeted next-generation sequencing
Whole exome sequencing
Wilson&apos
s disease
Wilson-like phenotype
BIOLOGIA CELULAR
Descrição
Resumo:[EN] Wilson's disease (WD) is an autosomal recessive disorder caused by ATP7B mutations. Subjects with only one mutation may show clinical signs and individuals with biallelic changes may remain asymptomatic. We aimed to achieve a conclusive genetic diagnosis for 34 patients clinically diagnosed of WD. Genetic analysis comprised from analysis of exons to WES (whole exome sequencing), including promoter, introns, UTRs (untranslated regions), besides of study of large deletions/duplications by MLPA (multiplex ligation-dependent probe amplification). Biallelic ATP7B mutations were identified in 30 patients, so that four patients were analyzed using WES. Two affected siblings resulted to be compound heterozygous for mutations in CCDC115, which is involved in a form of congenital disorder of glycosylation. In sum, the majority of patients with a WD phenotype carry ATP7B mutations. However, if genetic diagnosis is not achieved, additional genes should be considered because other disorders may mimic WD.