PMID- 26214646 OWN - NLM STAT- MEDLINE DCOM- 20150825 LR - 20151001 IS - 1107-0625 (Print) IS - 1107-0625 (Linking) VI - 20 IP - 3 DP - 2015 May-Jun TI - Increased cancer risk associated with the -607C/A polymorphism in interleukin-18 gene promoter: an updated meta-analysis including 12,502 subjects. PG - 902-17 AB - PURPOSE: Increasing investigations have been performed on the association of -607C/A polymorphism in Interleukin-18 (IL-18) gene promoter with cancer risk and have yielded conflicting results. To derive a more precise estimation of the association, we performed an updated meta-analysis of all eligible studies. METHODS: We searched all eligible studies by using PubMed, MEDLINE, EMBASE, and China National Knowledge Infrastructure (CNKI) databases. The odds ratios (ORs) were pooled by the fixed-effects/random-effects model in STATA 12.0 software. RESULTS: This meta-analysis included 29 studies with 6,026 cases and 6,476 controls. Overall, significantly increased cancer risk was observed (A vs C: OR=1.10, 95% CI: 1.01,1.19, Pheterogeneity=0.001; AA vs CC: OR=1.17, 95% CI: 1.01,1.37, Pheterogeneity=0.007; CA vs CC: OR=1.15, 95% CI: 1.05,1.25, Pheterogeneity=0.152; AA/CA vs CC: OR=1.17, 95% CI: 1.06,1.31, Pheterogeneity=0.042). In subgroup analyses based on ethnicity, the results suggested a significantly increased risk of cancer in Asian population (CA vs CC: OR=1.11, 95% CI: 1.00-1.24, Pheterogeneity=0.353; AA/CA vs CC: OR=1.14, 95% CI: 1.02-1.29, Pheterogeneity=0.081) and in Mixed population (A vs C: OR=1.72, 95% CI: 1.22-2.43, Pheterogeneity=NA; AA vs CC: OR=2.84, 95% CI: 1.43-5.64, Pheterogeneity=NA; AA vs CC/CA: OR=2.43, 95% CI: 1.34-4.42, Pheterogeneity=NA; AA/CA vs CC: OR=1.69, 95% CI: 1.00-2.85, Pheterogeneity=NA); however, no significant association was found in Caucasian or African populations. In the subgroup analysis by cancer type we found a significantly increased susceptibility to breast cancer (A vs C: OR=1.33, 95% CI: 1.00-1.75,Pheterogeneity=0.155; AA vs CC: OR=1.80, 95% CI: 1.02-3.21,Pheterogeneity=0.162; AA7sol;CA vs CC: OR=1.33, 95% CI: 1.00-1.78,Pheterogeneity=0.546), nasopharyngeal carcinoma (A vs C: OR=1.16, 95% CI: 1.01-1.32, Pheterogeneity=0.921; AA vs CC: OR=1.34, 95% CI: 1.02-1.75, Pheterogeneity=0.863; CA vs. CC: OR=1.36, 95% CI: 1.08-1.70, Pheterogeneity=0.824; AA/CA vs CC: OR=1.35, 95% CI: 1.09-1.68,Pheterogeneity=0.904), and esophageal cancer (CA vs CC: OR=1.37, 95% CI: 1.04-1.80, Pheterogeneity=0.528; AA/CA vs CC: OR =1.29, 95% CI: 1.00-1.66, Pheterogeneity=0.700). CONCLUSIONS: The current meta-analysis suggests that the -607C/A polymorphism in IL-18 gene promoter is associated with a significantly increased risk of cancer, especially of breast cancer, nasopharyngeal carcinoma and esophageal cancer and in Asian and Mixed populations. More studies with diverse ethnic groups, larger sample size, and well controlled confounding factors are warranted to further investigate the association. FAU - Li, Xiangnan AU - Li X AD - Department of General Surgery, Dalian Medical University, Liaoning Province, China. FAU - Ren, Dongliang AU - Ren D FAU - Li, Yanyan AU - Li Y FAU - Xu, Jingchao AU - Xu J FAU - Liu, Chen AU - Liu C FAU - Zhao, Yongfu AU - Zhao Y LA - eng PT - Journal Article PT - Meta-Analysis PT - Review PL - Cyprus TA - J BUON JT - Journal of B.U.ON. : official journal of the Balkan Union of Oncology JID - 100883428 RN - 0 (Interleukin-18) SB - IM MH - Case-Control Studies MH - Gene Frequency MH - Genetic Association Studies MH - Genetic Predisposition to Disease MH - Humans MH - Interleukin-18/*genetics MH - Neoplasms/diagnosis/ethnology/*genetics/immunology MH - Odds Ratio MH - Phenotype MH - *Polymorphism, Genetic MH - *Promoter Regions, Genetic MH - Risk Assessment MH - Risk Factors EDAT- 2015/07/28 06:00 MHDA- 2015/08/26 06:00 CRDT- 2015/07/28 06:00 PHST- 2015/07/28 06:00 [entrez] PHST- 2015/07/28 06:00 [pubmed] PHST- 2015/08/26 06:00 [medline] PST - ppublish SO - J BUON. 2015 May-Jun;20(3):902-17.