Association of functional variants of PTPN22 and tp53 in psoriatic arthritis:: a case-control study

被引:23
作者
Butt, C
Peddle, L
Greenwood, C
Hamilton, S
Gladman, D
Rahman, P [1 ]
机构
[1] Mem Univ Newfoundland, Hosp Sick Children, Dept Publ Hlth Sci, Univ Toronto, Toronto, ON, Canada
[2] Univ Toronto, Hosp Sick Children, Dept Publ Hlth Sci, Toronto, ON, Canada
[3] Univ Toronto, Toronto Western Hosp, Univ Hlth Network, Toronto, ON, Canada
关键词
D O I
10.1186/ar1880
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
Recent studies have implicated PTPN22 and tp53 in susceptibility to several autoimmune diseases, including rheumatoid arthritis, suggesting that these genes are important in maintaining immune homeostasis. Because autoimmune diseases may share similar susceptibility loci, investigation of these genes in psoriatic arthritis (PsA) is of potential relevance. As a result we investigated known coding polymorphisms in PTPN22 and tp53 in a homogenous Caucasian PsA cohort from Newfoundland, Canada and an admixed Caucasian PsA cohort from Toronto, Canada. We observed a moderate association of the R620W variant of PTPN22 with PsA in the Toronto population only. Because of the conflicting findings reported regarding the association of PTPN22 with PsA, further studies in other PsA populations are warranted.
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