Class II HLA interactions modulate genetic risk for multiple sclerosis.
Nat Genet
; 47(10): 1107-1113, 2015 Oct.
Article
en En
| MEDLINE
| ID: mdl-26343388
ABSTRACT
Association studies have greatly refined the understanding of how variation within the human leukocyte antigen (HLA) genes influences risk of multiple sclerosis. However, the extent to which major effects are modulated by interactions is poorly characterized. We analyzed high-density SNP data on 17,465 cases and 30,385 controls from 11 cohorts of European ancestry, in combination with imputation of classical HLA alleles, to build a high-resolution map of HLA genetic risk and assess the evidence for interactions involving classical HLA alleles. Among new and previously identified class II risk alleles (HLA-DRB1*1501, HLA-DRB1*1303, HLA-DRB1*0301, HLA-DRB1*0801 and HLA-DQB1*0302) and class I protective alleles (HLA-A*0201, HLA-B*4402, HLA-B*3801 and HLA-B*5501), we find evidence for two interactions involving pairs of class II alleles HLA-DQA1*0101-HLA-DRB1*1501 and HLA-DQB1*0301-HLA-DQB1*0302. We find no evidence for interactions between classical HLA alleles and non-HLA risk-associated variants and estimate a minimal effect of polygenic epistasis in modulating major risk alleles.
Texto completo:
1
Bases de datos:
MEDLINE
Asunto principal:
Antígenos de Histocompatibilidad Clase II
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Predisposición Genética a la Enfermedad
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Esclerosis Múltiple
Tipo de estudio:
Etiology_studies
/
Risk_factors_studies
Límite:
Humans
Idioma:
En
Revista:
Nat Genet
Asunto de la revista:
GENETICA MEDICA
Año:
2015
Tipo del documento:
Article
País de afiliación:
Reino Unido