title: Genetic variants at 6p21.1 and 7p15.3 Identified by GWASs of multiple cancers and ovarian cancer risk: a case-control study in Han Chinese women.
abstract: A recent study summarized several published genome-wide association studies (GWASs) of cancer and reported two pleiotropic loci at 6p21.1 and 7p15.3 contributing to multiple cancers including lung cancer, noncardia gastric cancer (NCGC), and esophageal squamous-cell carcinoma (ESCC) in Han Chinese. However, it is not known whether such genetic variants have similar effects on the risk of gynecologic cancers, such as ovarian cancer. Hence, we explored associations between genetic variants in 6p21.1 and 7p15.3 and ovarian cancer risk in Han Chinese women. We performed an independent case-control study by genotyping the two loci (rs2494938 A > G at 6p21.1 and rs2285947 A > G at 7p15.3) in a total of 377 ovarian cancer cases and 1,034 cancer-free controls using TaqMan allelic discrimination assay. We found that rs2285947 at 7p15.3 was significantly associated with risk of ovarian cancer with per allele odds ratio (OR) of 1.33 [95% confidence interval (CI): 1.08-1.64, P=0.008]. However, no significant association was observed between rs2494938 and ovarian cancer risk. Our results showed that rs2285947 at 7p15.3 may also contribute to the development of ovarian cancer in Han Chinese women, further suggesting pleiotropy of 7p15.3 in multiple cancers.
authors: Department of Gynaecology, Jiangsu Provincial Hospital of TCM, Affliated hospital of Nanjing University of TCM, Nanjing, China E-mail : mahongxia927@gmail.com.
authors: Da-Ke
authors: DK
authors: Li
authors: Jing
authors: J
authors: Han
authors: Ji-Bin
authors: JB
authors: Liu
authors: Guang-Fu
authors: GF
authors: Jin
authors: Jun-Wei
authors: JW
authors: Qu
authors: Meng
authors: M
authors: Zhu
authors: Yan-Ru
authors: YR
authors: Wang
authors: Jie
authors: J
authors: Jiang
authors: Hong-Xia
authors: HX
authors: Ma
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000483:Alleles; D044466:Asian People / Q000235:genetics*; D016022:Case-Control Studies; D002681:China; D002896:Chromosomes, Human, Pair 6 / Q000235:genetics*; D002897:Chromosomes, Human, Pair 7 / Q000235:genetics*; D005260:Female; D056426:Genetic Loci; D058685:Genetic Pleiotropy; D055106:Genome-Wide Association Study; D005838:Genotype; D006801:Humans; D008572:Menarche; D008875:Middle Aged; D010051:Ovarian Neoplasms / Q000235:genetics*; D020641:Polymorphism, Single Nucleotide; D017697:Premenopause; D012307:Risk Factors