1. Comprehensive association analysis of candidate genes for generalized vitiligo supports XBP1, FOXP3, and TSLP
- Author
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Birlea, S.A., Jin, Y., Bennett, D.C., Herbstman, D.M., Wallace, M.R., McCormack, W.T., Kemp, E.H., Gawkrodger, D.J., Weetman, A.P., Picardo, M., Leone, G., Taïeb, A., Jouary, T., Ezzedine, K., Van Geel, N., Lambert, J., Overbeck, A., Fain, P.R., and Spritz, R.A.
- Abstract
We previously carried out a genome-wide association study of generalized vitiligo (GV) in non-Hispanic whites, identifying 13 confirmed susceptibility loci. In this study, we re-analyzed the genome-wide data set (comprising 1,392 cases and 2,629 controls) to specifically test association of all 33 GV candidate genes that have previously been suggested for GV, followed by meta-analysis incorporating both current and previously published data. We detected association of three of the candidate genes tested: TSLP (rs764916, P3.0E-04, odds ratio (OR)1.60; meta-P for rs38069333.1E-03), XBP1 (rs6005863, P3.6E-04, OR1.17; meta-P for rs22695779.5E-09), and FOXP3 (rs11798415, P5.8E-04, OR1.19). Association of GV with CTLA4 (rs12992492, P5.9E-05, OR1.20; meta-P for rs2317751.0E-04) seems to be secondary to epidemiological association with other concomitant autoimmune diseases. Within the major histocompatibility complex (MHC), at 6p21.33, association with TAP1-PSMB8 (rs3819721, P5.2E-06) seems to derive from linkage disequilibrium with major primary signals in the MHC class I and class II regions.
- Published
- 2011