26 February 2015 : Meta-Analysis
Med Sci Monit 2015; 21:612-616
BACKGROUND: Telomerase reverse transcriptase (TERT) rs2735940 polymorphism was found to be associated with increased cancer risk. However, recent studies reported controversial results. The aim of our study was to detect its relationship with cancer risk.
MATERIAL AND METHODS: EMBASE and PubMed databases were searched for all publications until October 2014. ORs and 95% CIs were applied to investigate the association in the random-effects model.
RESULTS: Thirteen case-control studies with 19385 cases and 17558 controls were included in this study. We found a significant association between cancer risk and TERT rs2735940 polymorphism (OR=1.06, 95% CI 1.02–1.11, P=0.005). In the subgroup analysis by ethnicity, a marginal association was found in Caucasians (OR=1.05, 95% CI 1.00–1.10, P=0.05), but not in Asians (OR=1.01, 95% CI 0.82–1.24, P=0.93). In the subgroup analysis by cancer site, this polymorphism was significantly associated with lung cancer risk (OR=1.08, 95% CI 1.02–1.13, P=0.004).
CONCLUSIONS: TERT rs2735940 polymorphism was significantly associated with cancer risk, especially lung cancer.
Keywords: Genetic Predisposition to Disease, Genetic Association Studies, Neoplasms - genetics, Polymorphism, Single Nucleotide - genetics, Risk Factors, Telomerase - genetics
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