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Abstract: Ankylosing spondylitis (AS) is a common, highly heritable, inflammatory arthritis for which HLA-B*27 is the major genetic risk factor, although its role in the aetiology of AS remains elusive. To better understand the genetic basis of the MHC susceptibility loci, we genotyped 7,264 MHC SNPs in 22,647 AS cases and controls of European descent. We impute SNPs, classical HLA alleles and amino-acid residues within HLA proteins, and tested these for association to AS status. Here we show that in addition to effects due to HLA-B*27 alleles, several other HLA-B alleles also affect susceptibility. After controlling for the associated haplotypes in HLA-B, we observe independent associations with variants in the HLA-A, HLA-DPB1 and HLA-DRB1 loci. We also demonstrate that the ERAP1 SNP rs30187 association is not restricted only to carriers of HLA-B*27 but also found in HLA-B*40:01 carriers independently of HLA-B*27 genotype.
Fuente: Nat Commun. 2015 May 21;6:7146
Publisher: Nature Publishing Group
Year of publication: 2015
No. of pages: 8
Publication type: Article
DOI: 10.1038/ncomms8146
ISSN: 2041-1723
Publication Url: DOI: 10.1038/ncomms8146
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CORTÉS, ADRIÁN
PULIT, SARA L.
LEO, PAUL J.
POINTON, JENNY J.
ROBINSON, PHILIP C.
WEISMAN, MICHAEL H.
WARD, MICHAEL
GENSLER, LIANNE S.
ZHOU, XIAODONG
GARCHON, HENRI-JEAN
CHIOCCHIA, GILLES
NOSSENT, JOHANNES
LIE, BENEDICTE A.
FORRE, OYSTEIN
TUOMILEHTO, JAAKKO
LAIHO, KARI
BRADBURY, LINDA A.
ELEWAUT, DIRK
BURGOS VARGAS, RUBÉN
MIGUEL ANGEL GONZALEZ-GAY MANTECON
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