Whole-genome sequencing identifies rare genotypes in COMP and CHADL associated with high risk of hip osteoarthritis.
Nat Genet
; 49(5): 801-805, 2017 May.
Article
em En
| MEDLINE
| ID: mdl-28319091
ABSTRACT
We performed a genome-wide association study of total hip replacements, based on variants identified through whole-genome sequencing, which included 4,657 Icelandic patients and 207,514 population controls. We discovered two rare signals that strongly associate with osteoarthritis total hip replacement a missense variant, c.1141G>C (p.Asp369His), in the COMP gene (allelic frequency = 0.026%, P = 4.0 × 10-12, odds ratio (OR) = 16.7) and a frameshift mutation, rs532464664 (p.Val330Glyfs*106), in the CHADL gene that associates through a recessive mode of inheritance (homozygote frequency = 0.15%, P = 4.5 × 10-18, OR = 7.71). On average, c.1141G>C heterozygotes and individuals homozygous for rs532464664 had their hip replacement operation 13.5 years and 4.9 years earlier than others (P = 0.0020 and P = 0.0026), respectively. We show that the full-length CHADL transcript is expressed in cartilage. Furthermore, the premature stop codon introduced by the CHADL frameshift mutation results in nonsense-mediated decay of the mutant transcripts.
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Base de dados:
MEDLINE
Assunto principal:
Osteoartrite do Quadril
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Genoma Humano
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Proteínas da Matriz Extracelular
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Análise de Sequência de DNA
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Predisposição Genética para Doença
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Proteína de Matriz Oligomérica de Cartilagem
Idioma:
En
Ano de publicação:
2017
Tipo de documento:
Article