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Gene Polymorphisms of Toll-Like Receptor 9 -1486T/C and 2848G/A in Cervical Cancer Risk


, : Gene Polymorphisms of Toll-Like Receptor 9 -1486T/C and 2848G/A in Cervical Cancer Risk. International Journal of Gynecological Cancer 25(7): 1173-1178

This work aims to explore whether Toll-like receptor 9 (TLR9) -1486T/C and 2848G/A polymorphisms are associated with cervical cancer risk. A comprehensive electronic search of studies published from January 1999 to October 2014 was conducted in Medline (Ovid), Embase, PubMed, Wanfang, Weipu, and CNKI. The algorithm included "TLR," "Toll-like receptor," "polymorphism," "variant," "mutation," and "cervical cancer." Seven articles, including 9 studies, were pooled using Revman 5.2 (Cochrane Collaboration, Copenhagen, Denmark). Odds ratio (OR) was used to explore the involvement of minor allele C (C vs T and CC + CT vs TT) of TLR9 (-1486T/C, rs187084) and minor allele A (A vs G and AA + AG vs GG) of TLR9 (2848G/A, rs352140) in cervical cancer risk. Toll-like receptor 9 (-1486T/C, rs187084) polymorphisms were associated with an elevated risk of cervical cancer (C vs T: OR, 1.15; 95% confidence interval [CI], 1.03-1.29; CC + CT vs TT: OR, 1.30; 95% CI, 1.11-1.53). We found no significant association between TLR9 (2848G/A, rs352140) polymorphisms and cervical cancer risk (A vs G: OR, 1.15; 95% CI, 0.87-1.54; AA + AG vs GG: OR, 1.27; 95% CI, 0.75-2.17). This meta-analysis indicates that TLR9 (-1486T/C, rs187084)-but not TLR9 (2848G/A, rs352140)-may be a risk factor for cervical cancer.

US$19.90

PMID: 26270118

DOI: 10.1097/IGC.0000000000000494


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