Abstract
Objective: The aim of the present study was to analyze the genetic association between the three estrogen receptor 1 (ESR1) single nucleotide polymorphisms (SNPs; rs1062577, rs2881766, and rs9479118) and breast cancer risk in Han Chinese women.Methods/materials: To investigate the possible association of genetic polymorphisms of any of the three ESR1 SNPs in breast cancer patients (n = 198) and healthy controls (n = 218) collected from the college hospital, peripheral blood mononuclear cells samples were analyzed by high-resolution melt-polymerase chain reaction. Odds ratios and 95% confidence intervals were used to evaluate the association between the ESR1 SNPs and breast cancer.Results: Patients genotyped AA for ESR1 rs1062577 showed increased breast cancer risk (p = 0.005). In the menarche at ≤ 13-year-old group, there were significant differences in alleles A versus T at rs1062577 and alleles G versus T at rs2881766 between the breast cancer group and the control group. In the > 13-year-old group, the AA genotype at rs1062577, the GG genotype at rs2881766, and the CC genotype at rs9479118 increased breast cancer susceptibility.Conclusions: These results showed that the ESR1 rs1062577 polymorphism increased breast cancer risk in Han Chinese women, which might be used as a new SNP marker.
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