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The genetics of spondyloarthropathies
Maxime Breban1, Corinne Miceli-Richard, Elena Zinovieva
1Département d'immunologie, institut Cochin, Inserm U567/CNRS UMR8104/IFR116, hôpital Cochin, 27, rue du Faubourg-Saint-Jacques, 75014 Paris, France. maxime.breban@apr.aphp.fr
Abstract:
The spondyloarthropathies constitute a group of inflammatory joint diseases linked by shared characteristics that include a strong common genetic background. Genetic factors include major histocompatibility complex (MHC) genes, among which HLA-B27 contributes 30% of the overall genetic susceptibility to spondyloarthropathies, and non-MHC genes, none of which have been identified to date. Genome screens have identified regions that may contain susceptibility genes for spondyloarthropathies. In particular, a locus on the long arm of chromosome 9 (9q31-34) was identified by two groups working independently from each other. Studies using the candidate gene approach ruled out a role for most of the tested genes, including CARD15/NOD2. However, several independent groups have reported significant associations between ankylosing spondylitis and the IL-1 gene cluster on the long arm of chromosome 2.
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