Psoriasis is associated with pleiotropic susceptibility loci identified in type II diabetes and Crohn disease

被引:138
作者
Wolf, N. [1 ]
Quaranta, M. [1 ]
Prescott, N. J. [1 ]
Allen, M. [1 ]
Smith, R. [2 ,3 ]
Burden, A. D. [4 ]
Worthington, J. [3 ]
Griffiths, C. E. M. [2 ]
Mathew, C. G. [1 ]
Barker, J. N. [1 ]
Capon, F. [1 ]
Trembath, R. C. [1 ]
机构
[1] Kings Coll London, Div Med & Mol Genet, London, England
[2] Univ Manchester, Manchester M13 9PL, Lancs, England
[3] Univ Manchester, Epidemiol Unit, Manchester M13 9PL, Lancs, England
[4] Western Infirm & Associated Hosp, Glasgow, Lanark, Scotland
基金
英国医学研究理事会; 英国惠康基金;
关键词
D O I
10.1136/jmg.2007.053595
中图分类号
Q3 [遗传学];
学科分类号
071007 ; 090102 ;
摘要
Background: Psoriasis is an immune-mediated skin disorder that is inherited as a multifactorial trait. Linkage analyses have clearly mapped a primary disease susceptibility locus to the major histocompatibility complex (MHC) region on chromosome 6p21. More recently, whole-genome association studies have identified two non-MHC disease genes (IL12B and IL23R), both of which also confer susceptibility to Crohn disease (CD). Objective and methods: To ascertain the genetic overlap between these two inflammatory conditions further, we investigated 15 CD-associated loci in a psoriasis case-control dataset. Results: The analysis of 1256 patients and 2938 unrelated controls found significant associations for loci mapping to chromosomes 1q24 (rs12035082, p = 0.009), 6p22 (rs6908425, p = 0.00015) and 21q22 (rs2836754, p = 0.0003). Notably, the marker showing the strongest phenotypic effect (rs6908425) maps to CDKAL1, a gene also associated with type 2 diabetes. Conclusions: These results substantiate emerging evidence for a pleiotropic role for s genes that contribute to the pathogenesis of immune-mediated disorders.
引用
收藏
页码:114 / 116
页数:3
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