Three polymorphisms in interleukin-1β gene and risk for breast cancer: a meta-analysis
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Interleukin-1β (IL-1β), which is involved in inflammatory and immunological responses, plays an important role in the development and progression of breast cancer. Three functional single nucleotide polymorphisms (SNPs) identified in IL-1β gene are thought to influence breast cancer risk. The results of the association between IL-1β polymorphisms and breast cancer remain inconsistent. Therefore, we conducted a meta-analysis of eight case–control studies with rs1143627 (T > C), rs16944 (C > T), and rs1143634 (C > T). We found that the variant CC genotype of rs1143627 was associated with a significantly increased breast cancer risk (CC vs. TT: OR = 1.37, 95% CI = 1.10–1.70, P = 0.22 for heterogeneity; the recessive model CC vs. TT/TC: OR = 1.40, 95% CI = 1.17–1.67, P = 0.49 for heterogeneity). For rs16944 (C > T) and rs1143634 (C > T), no significant associations were found in all genetic models. In conclusion, the present meta-analysis suggests that rs1143627 is associated with breast cancer risk.
KeywordsInterleukin-1β Polymorphism Breast cancer Meta-analysis
- 12.Liu J, Zhai X, Jin G, Hu Z, Wang S, Wang X, Qin J, Gao J, Ma H, Wei Q, Shen H (2006) Functional variants in the promoter of interleukin-1beta are associated with an increased risk of breast cancer: a case-control analysis in a Chinese population. Int J Cancer 118:2554–2558CrossRefPubMedGoogle Scholar
- 14.Snoussi K, Strosberg AD, Bouaouina N, Ben Ahmed S, Chouchane L (2005) Genetic variation in pro-inflammatory cytokines (interleukin-1beta, interleukin-1alpha and interleukin-6) associated with the aggressive forms, survival, and relapse prediction of breast carcinoma. Eur Cytokine Netw 16:253–260PubMedGoogle Scholar