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  • Title: PSCA rs2294008 C > T polymorphism contributes to gastric and bladder cancer risk.
    Author: Wang M, Wang XJ, Ma YF, Ma XB, Dai ZM, Lv Y, Lin S, Liu XH, Yang PT, Dai ZJ.
    Journal: Ther Clin Risk Manag; 2015; 11():237-45. PubMed ID: 25709466.
    Abstract:
    BACKGROUND: Previous studies suggested genetic variations in PSCA (prostate stem cell antigen) may confer the susceptibility of cancer. Many case-control studies have reported the relationship between PSCA rs2294008 C > T polymorphism and cancer, especially gastric cancer and bladder cancer. However, the results are inconsistent. This meta-analysis is aimed at evaluating the association of rs2294008 polymorphism with cancer risk. METHODS: The databases of PubMed, ISI Web of Knowledge, EMBASE, and Chinese National Knowledge Infrastructure (CNKI) were searched for related publications. Odds ratios (ORs) and 95% confidence intervals (CIs) were used to estimate the strength of the associations. Fixed models were used when heterogeneity among studies was not detected, otherwise the random model was used. RESULTS: Twenty-six studies from 24 articles with 30,050 multiple cancer cases and 51,670 controls were pooled into this meta-analysis. The results showed that the rs2294008 polymorphism was associated with increased cancer risk in any genetic model (T vs C, OR: 1.18, 95% CI: 1.08-1.28; TT vs CC, OR: 1.36, 95% CI: 1.14-1.62; TC vs CC, OR: 1.29, 95% CI: 1.17-1.44; TT + TC vs CC, OR: 1.32, 95% CI: 1.18-1.49; TT vs TC + CC, OR: 1.15, 95% CI: 1.02-1.30). In stratified analysis by cancer type, we found that the T allele had a significant high risk of gastric and bladder cancer, but not in other cancers. In subgroup analysis by ethnicity, increased cancer risk was found in both Asians and Caucasians. CONCLUSION: Our study suggested that the PSCA rs2294008 C > T polymorphism is a risk factor for cancer, especially in gastric and bladder cancer.
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