Identification of multiple risk variants for ankylosing spondylitis through high-density genotyping of immune-related loci

Adrian Cortes, Johanna Hadler, Jenny P. Pointon, Philip C. Robinson, Tugce Karaderi, Paul Leo, Katie Cremin, Karena Pryce, Jessica Harris, Seunghun Lee, Kyung Bin Joo, Seung Cheol Shim, Michael Weisman, Michael Ward, Xiaodong Zhou, Henri Jean Garchon, Gilles Chiocchia, Johannes Nossent, Benedicte A. Lie, Øystein FørreJaakko Tuomilehto, Kari Laiho, Lei Jiang, Yu Liu, Xin Wu, Linda A. Bradbury, Dirk Elewaut, Ruben Burgos-Vargas, Simon Stebbings, Louise Appleton, Claire Farrah, Jonathan Lau, Tony J. Kenna, Nigil Haroon, Manuel A. Ferreira, Jian Yang, Juan Mulero, Jose Luis Fernandez-Sueiro, Miguel A. Gonzalez-Gay, Carlos Lopez-Larrea, Panos Deloukas, Peter Donnelly, Paul Bowness, Karl Gafney, Hill Gaston, Dafna D. Gladman, Proton Rahman, Walter P. Maksymowych, Huji Xu, J. Bart A. Crusius

466 Citations (Scopus)

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.

Original languageEnglish
JournalNature Genetics
Volume45
Issue number7
Pages (from-to)730-738
Number of pages9
ISSN1061-4036
DOIs
Publication statusPublished - 1 Jul 2013
Externally publishedYes

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