The rs2233678 Polymorphism in PIN1 Promoter Region Reduced Cancer Risk: A Meta-Analysis |
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| Authors: | Qi Li Zhao Dong Yun Lin Xinyan Jia Qun Li Hong Jiang Liwei Wang Yong Gao |
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| Institution: | 1. Department of Oncology, Shanghai First People’s Hospital Affiliated Shanghai Jiaotong University, Shanghai, China.; 2. Department of Radiotherapy, No.85 Hospital of People’s Liberation Army, Shanghai, China.; 3. Department of Oncology, Shanghai East Hospital, Tongji University, Shanghai, China.; Winship Cancer Institute of Emory University, United States of America, |
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| Abstract: | BackgroundPublished evidence suggests that the rs2233678 (−842 G>C) polymorphism in the PIN1 (peptidyl-prolyl cis/trans somerase NIMA-interacting 1) promoter region may be associated with cancer risk; however, the conclusion is still inconclusive.MethodsWe conducted a meta-analysis to determine whether −842 G>C polymorphism was associated with cancer risk. Odds ratio (OR) and 95% confidence intervals (95% CI) were used to assess the strength of association. Genotype distribution data and adjusted ORs were collected to calculate the pooled ORs. Meta-regression was conducted to detect the source of heterogeneity. Publication bias was evaluated by Egger’s test and Begg’s test.ResultsA total of 11 eligible studies, including 9280 participants, were identified and analyzed. Overall, we found that carriers of the −842 C allele were associated with significantly decreased cancer risk (C vs. G, OR = 0.750, 95% CI: 0.639–0.880, Pheterogeneity = 0.014, estimated by genotype distribution data; CC+GC vs. GG, OR = 0.668, 95% CI: 0.594–0.751, Pheterogeneity = 0.638, estimated by adjusted ORs). No evidence of publication bias was observed. Meta-regression revealed that ethnicities (p = 0.021) and sample size (p = 0.02) but not sources of control (p = 0.069) were the source of heterogeneity.ConclusionThese results suggest that the PIN1 rs2233678 (−842 G>C) polymorphism significantly reduces cancer risk. |
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