Relationship of WNT4 Gene with the Risk of Epithelial Ovarian Cancer: A Han Chinese Population-Based Association Study.

OBJECTIVE:In China, epithelial ovarian cancer (EOC) patients account for the majority of ovarian cancer patients. The pathogenesis of EOC, one of the most lethal gynecological malignancies, remains unclear. Recently, the role of WNT4 in gynecological disease and tumor development was reported, and a suspicious association of WNT4 with EOC was identified in Europeans. However, the contributions of the WNT4 gene to EOC and the underlying molecular mechanisms remains largely unknown. To determine whether the WNT4 gene is associated with EOC, this study investigated polymorphisms of the WNT4 gene in Han Chinese individuals. MATERIALS AND METHODS:We designed a case/control study with 707 EOC patients and 1563 unrelated healthy controls of Han Chinese descent. A total of eight tag single-nucleotide polymorphisms (SNPs) were genotyped successfully, and both single SNP and haplotype analyses were performed to detect the potential association of variations in the WNT4 gene with EOC. RESULTS:The SNP rs56318008 was found to be strongly associated with EOC risk. In the serous EOC subgroup, individuals harboring the T allele of rs56318008 exhibited a higher risk of EOC than individuals harboring the C allele. Moreover, the odds ratios and 95% confidence intervals revealed an increased risk of EOC in individuals with the T allele of the SNP, and haplotypic analyses confirmed the results, showing a similar pattern. CONCLUSION:Our results show that the WNT4 gene is associated with EOC risk, indicating that this gene may be a potential genetic risk factor for developing EOC.

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