Journal
HUMAN MOLECULAR GENETICS
Volume 18, Issue 13, Pages 2518-2522Publisher
OXFORD UNIV PRESS
DOI: 10.1093/hmg/ddp177
Keywords
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Funding
- Arthritis Research Campaign [17552]
- NHS Research and Development Support Fund
- Medical Research Council [G0000934]
- Wellcome Trust [068545/Z/02]
- Medical Research Council [G0000934] Funding Source: researchfish
- National Institute for Health Research [NF-SI-0508-10299] Funding Source: researchfish
- Versus Arthritis
- Cancer Research UK [18475] Funding Source: researchfish
- MRC [G0000934] Funding Source: UKRI
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The concept of susceptibility genes common to different autoimmune diseases is now firmly established with previous studies demonstrating overlap of loci conferring susceptibility to type 1 diabetes (T1D) with both Coeliac disease and multiple sclerosis. Rheumatoid arthritis (RA) is an archetypal autoimmune disease and we, therefore, targeted putative T1D susceptibility loci for genotyping in UK RA cases and unrelated controls. A novel RA susceptibility locus at AFF3 was identified with convincing evidence for association in a combined sample cohort of 6819 RA cases and 12 650 controls [OR 1.12 95% confidence intervals (CI) 1.07-1.17, P = 2.8 x 10(-7)]. Association of two previously described loci (CTLA-4 and 4q27) with RA was also replicated (OR 0.87, 95% CI 0.82-0.94, P = 1.1 x 10(-4) and OR 0.86, 95% CI 0.79-0.94, P = 5.4 x 10(-4), respectively). These findings take the number of established RA susceptibility loci to 13, only one of which has not been associated with other autoimmune diseases.
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