Discovery of new risk loci for IgA nephropathy implicates genes involved in immunity against intestinal pathogens.
Nat Genet
; 46(11): 1187-96, 2014 Nov.
Article
en En
| MEDLINE
| ID: mdl-25305756
We performed a genome-wide association study (GWAS) of IgA nephropathy (IgAN), the most common form of glomerulonephritis, with discovery and follow-up in 20,612 individuals of European and East Asian ancestry. We identified six new genome-wide significant associations, four in ITGAM-ITGAX, VAV3 and CARD9 and two new independent signals at HLA-DQB1 and DEFA. We replicated the nine previously reported signals, including known SNPs in the HLA-DQB1 and DEFA loci. The cumulative burden of risk alleles is strongly associated with age at disease onset. Most loci are either directly associated with risk of inflammatory bowel disease (IBD) or maintenance of the intestinal epithelial barrier and response to mucosal pathogens. The geospatial distribution of risk alleles is highly suggestive of multi-locus adaptation, and genetic risk correlates strongly with variation in local pathogens, particularly helminth diversity, suggesting a possible role for host-intestinal pathogen interactions in shaping the genetic landscape of IgAN.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Antígenos HLA-D
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Antígeno CD11b
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Proteínas Proto-Oncogénicas c-vav
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Proteínas Adaptadoras de Señalización CARD
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Sitios Genéticos
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Glomerulonefritis por IGA
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Inmunidad
Tipo de estudio:
Etiology_studies
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Prognostic_studies
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Risk_factors_studies
/
Systematic_reviews
Límite:
Humans
Idioma:
En
Revista:
Nat Genet
Asunto de la revista:
GENETICA MEDICA
Año:
2014
Tipo del documento:
Article
País de afiliación:
Estados Unidos
Pais de publicación:
Estados Unidos