PMID- 22881057 OWN - NLM STAT- MEDLINE DCOM- 20121212 LR - 20120813 IS - 1399-0039 (Electronic) IS - 0001-2815 (Linking) VI - 80 IP - 3 DP - 2012 Sep TI - Old and new HLA associations with ankylosing spondylitis. PG - 205-13 LID - 10.1111/j.1399-0039.2012.01944.x [doi] AB - Ankylosing spondylitis (AS) is a chronic inflammatory rheumatic disease that primarily involves the axial skeleton and the sacroiliac joint, but may also affect peripheral joints and entheses. AS susceptibility is clearly attributable to genetic factors and the link between human leukocyte antigen (HLA)-B27 and AS is the strongest association between an HLA class I molecule and a disease. However, there is evidence for the involvement of other, non-B27 factors within the major histocompatibility complex (MHC) in AS susceptibility. MHC class I is clearly the most significant genetic region for the disease, although most of the genetic association of this region is driven by HLA-B27. Moreover, several studies have investigated the MHC class II region and its association with AS. This review summarizes the current findings concerning the MHC genetics of the disease, focusing in particular on the associations of HLA with AS found in different ethnic populations throughout the world, and the possible mechanisms underlying them. CI - (c) 2012 John Wiley & Sons A/S. FAU - Diaz-Pena, R AU - Diaz-Pena R AD - Department of Immunology, Hospital Universitario Central de Asturias, Oviedo, Spain. FAU - Lopez-Vazquez, A AU - Lopez-Vazquez A FAU - Lopez-Larrea, C AU - Lopez-Larrea C LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Review PL - England TA - Tissue Antigens JT - Tissue antigens JID - 0331072 RN - 0 (Histocompatibility Antigens Class I) RN - 0 (Histocompatibility Antigens Class II) SB - IM MH - Gene Frequency/genetics MH - *Genetic Association Studies MH - *Genetic Predisposition to Disease MH - Histocompatibility Antigens Class I/*genetics/immunology MH - Histocompatibility Antigens Class II/*genetics/immunology MH - Humans MH - Spondylitis, Ankylosing/*genetics/*immunology EDAT- 2012/08/14 06:00 MHDA- 2012/12/13 06:00 CRDT- 2012/08/14 06:00 PHST- 2012/08/14 06:00 [entrez] PHST- 2012/08/14 06:00 [pubmed] PHST- 2012/12/13 06:00 [medline] AID - 10.1111/j.1399-0039.2012.01944.x [doi] PST - ppublish SO - Tissue Antigens. 2012 Sep;80(3):205-13. doi: 10.1111/j.1399-0039.2012.01944.x.