Abstract
Ankylosing spondylitis is a common, highly heritable inflammatory arthritis affecting primarily the spine and pelvis. In addition to HLA-B*27 alleles, 12 loci have previously been identified that are associated with ankylosing spondylitis in populations of European ancestry, and 2 associated loci have been identified in Asians. In this study, we used the Illumina Immunochip microarray to perform a case-control association study involving 10,619 individuals with ankylosing spondylitis (cases) and 15,145 controls. We identified 13 new risk loci and 12 additional ankylosing spondylitis-associated haplotypes at 11 loci. Two ankylosing spondylitis-associated regions have now been identified encoding four aminopeptidases that are involved in peptide processing before major histocompatibility complex (MHC) class I presentation. Protective variants at two of these loci are associated both with reduced aminopeptidase function and with MHC class I cell surface expression.
Originalsprog | Engelsk |
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Tidsskrift | Nature Genetics |
Vol/bind | 45 |
Udgave nummer | 7 |
Sider (fra-til) | 730-738 |
Antal sider | 9 |
ISSN | 1061-4036 |
DOI | |
Status | Udgivet - 1 jul. 2013 |
Udgivet eksternt | Ja |