title: Three polymorphisms in interleukin-1β gene and risk for breast cancer: a meta-analysis.
abstract: 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.
authors.affiliation: Department of Breast Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China.
authors.forename: Xiaoan
authors.initials: X
authors.lastname: Liu
authors.forename: Zhanwei
authors.initials: Z
authors.lastname: Wang
authors.forename: Jinhua
authors.initials: J
authors.lastname: Yu
authors.forename: Gang
authors.initials: G
authors.lastname: Lei
authors.forename: Shui
authors.initials: S
authors.lastname: Wang
mesh_terms: D001943:Breast Neoplasms / Q000235:genetics* / Q000276:immunology; D016022:Case-Control Studies; D005260:Female; D005787:Gene Frequency; D020022:Genetic Predisposition to Disease; D006801:Humans; D053583:Interleukin-1beta / Q000235:genetics*; D016017:Odds Ratio; D020641:Polymorphism, Single Nucleotide; D018570:Risk Assessment; D012307:Risk Factors
chemical_list: D053583:Interleukin-1beta