Association between IL-6 Gene (−174 & -572 G/C) Polymorphisms and Endometrial Adenocarcinoma Risk

We aimed to evaluate the association of IL-6 gene polymorphisms at positions of −174 and −572 and predisposition of endometrial adenocarcinoma (EAC) in a Chinese population. EAC patients have remarkably higher frequency of IL-6 -174 CC genotype [odds ratio (OR) =1.56, 95 % confidence interval (CI) =1.07–2.23; P = 0.03], IL-6 -572 CC genotype (OR =1.93, 95%CI =1.17–3.15; P = 0.01) and IL-6 -174 C allele (OR =1.22, 95 % CI =1.03–1.46; P = 0.04) compared with healthy controls. When stratified with FIGO stage, patients with III-IV EAC have a significantly higher frequency of IL-6 -174 CC genotype (OR =1.66, 95% CI =1.06–2.58; P = 0.02) than healthy controls. The CC genotype of IL-6 gene polymorphisms at positions of −174 and −572 may denote potential high risk of EAC.