PMID- 17252545 OWN - NLM STAT- MEDLINE DCOM- 20070601 LR - 20220129 IS - 0364-5134 (Print) IS - 1531-8249 (Electronic) IS - 0364-5134 (Linking) VI - 61 IP - 3 DP - 2007 Mar TI - A second major histocompatibility complex susceptibility locus for multiple sclerosis. PG - 228-36 AB - OBJECTIVE: Variation in the major histocompatibility complex (MHC) on chromosome 6p21 is known to influence susceptibility to multiple sclerosis with the strongest effect originating from the HLA-DRB1 gene in the class II region. The possibility that other genes in the MHC independently influence susceptibility to multiple sclerosis has been suggested but remains unconfirmed. METHODS: Using a combination of microsatellite, single nucleotide polymorphism, and human leukocyte antigen (HLA) typing, we screened the MHC in trio families looking for evidence of residual association above and beyond that attributable to the established DRB1*1501 risk haplotype. We then refined this analysis by extending the genotyping of classical HLA loci into independent cases and control subjects. RESULTS: Screening confirmed the presence of residual association and suggested that this was maximal in the region of the HLA-C gene. Extending analysis of the classical loci confirmed that this residual association is partly due to allelic heterogeneity at the HLA-DRB1 locus, but also reflects an independent effect from the HLA-C gene. Specifically, the HLA-C*05 allele, or a variant in tight linkage disequilibrium with it, appears to exert a protective effect (p = 3.3 x 10(-5)). INTERPRETATION: Variation in the HLA-C gene influences susceptibility to multiple sclerosis independently of any effect attributable to the nearby HLA-DRB1 gene. FAU - Yeo, Tai Wai AU - Yeo TW AD - Department of Clinical Neurosciences, University of Cambridge, Addenbrooke's Hospital, Cambridge, United Kingdom. FAU - De Jager, Philip L AU - De Jager PL FAU - Gregory, Simon G AU - Gregory SG FAU - Barcellos, Lisa F AU - Barcellos LF FAU - Walton, Amie AU - Walton A FAU - Goris, An AU - Goris A FAU - Fenoglio, Chiara AU - Fenoglio C FAU - Ban, Maria AU - Ban M FAU - Taylor, Craig J AU - Taylor CJ FAU - Goodman, Reyna S AU - Goodman RS FAU - Walsh, Emily AU - Walsh E FAU - Wolfish, Cara S AU - Wolfish CS FAU - Horton, Roger AU - Horton R FAU - Traherne, James AU - Traherne J FAU - Beck, Stephan AU - Beck S FAU - Trowsdale, John AU - Trowsdale J FAU - Caillier, Stacy J AU - Caillier SJ FAU - Ivinson, Adrian J AU - Ivinson AJ FAU - Green, Todd AU - Green T FAU - Pobywajlo, Susan AU - Pobywajlo S FAU - Lander, Eric S AU - Lander ES FAU - Pericak-Vance, Margaret A AU - Pericak-Vance MA FAU - Haines, Jonathan L AU - Haines JL FAU - Daly, Mark J AU - Daly MJ FAU - Oksenberg, Jorge R AU - Oksenberg JR FAU - Hauser, Stephen L AU - Hauser SL FAU - Compston, Alastair AU - Compston A FAU - Hafler, David A AU - Hafler DA FAU - Rioux, John D AU - Rioux JD FAU - Sawcer, Stephen AU - Sawcer S LA - eng GR - R01 NS049477/NS/NINDS NIH HHS/United States GR - 048880/WT_/Wellcome Trust/United Kingdom GR - G0401569/MRC_/Medical Research Council/United Kingdom GR - 057097/WT_/Wellcome Trust/United Kingdom GR - NS026799/NS/NINDS NIH HHS/United States GR - R01 NS026799/NS/NINDS NIH HHS/United States GR - K08 NS46341/NS/NINDS NIH HHS/United States GR - NS032830/NS/NINDS NIH HHS/United States GR - R01 NS032830/NS/NINDS NIH HHS/United States GR - 588/MSS_/Multiple Sclerosis Society/United Kingdom GR - NS049477/NS/NINDS NIH HHS/United States GR - K08 NS046341/NS/NINDS NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't PL - United States TA - Ann Neurol JT - Annals of neurology JID - 7707449 RN - 0 (HLA-D Antigens) SB - IM MH - Adult MH - Female MH - *Genetic Predisposition to Disease MH - HLA-D Antigens/genetics MH - Humans MH - Major Histocompatibility Complex/*genetics MH - Male MH - Microsatellite Repeats MH - Middle Aged MH - Multiple Sclerosis/*genetics MH - Polymorphism, Single Nucleotide PMC - PMC2737610 EDAT- 2007/01/26 09:00 MHDA- 2007/06/02 09:00 CRDT- 2007/01/26 09:00 PHST- 2007/01/26 09:00 [pubmed] PHST- 2007/06/02 09:00 [medline] PHST- 2007/01/26 09:00 [entrez] AID - 10.1002/ana.21063 [doi] PST - ppublish SO - Ann Neurol. 2007 Mar;61(3):228-36. doi: 10.1002/ana.21063.