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Association between gene expression of metabolizing enzymes and esophageal squamous cell carcinomas in china

机译:的基因表达之间的联系代谢酶和食管鳞状细胞癌在中国

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Epidemiological studies have indicated that the incidence of esophageal squamous cell carcinoma (ESCC) is associated with environmental exposure to mutagens and carcinogens. To determine whether the basal expression level of genes involved in metabolism of carcinogens is associated with the risk of ESCC, a case-control study of 100 patients with newly diagnosed, untreated ESCC and 117 healthy controls was performed, and the relative expression levels of four metabolism genes (CYP2E1, GSTP1, MTHFR, and NQO1) were determined with quantitative real-time reverse transcription-polymerase chain reaction in peripheral blood mononuclear cells (PBMCs). Analyzed with the mean of relative expression level in the controls as the cut-off point, the result exhibited that the increased risk for ESCC was significantly associated with reduced expression of GSTP1 (odds ratio [OR]=3.644, 95% confidence interval [CI: 1.947-6.823) and NQO1 (OR=1.870, 95% CI: 1.046-3.345). When adjusted for age, sex, smoking status, and alcohol use, the increased risk for ESCC was significantly associated with reduced expression of GSTP1, MTHFR, and NQO1, and GSTP1 mRNA showed a steady association with the risk for ESCC (OR=2.640) in the model of stepwise regression analysis. Reduced expression of GSTP1 in PBMCs was significantly associated with the risk for ESCC, suggesting an important etiology clue to the early progression of ESCC in the Huaian population of China.
机译:流行病学研究表明,食管鳞状细胞癌的发病率(ESCC)与环境暴露有关诱变剂和致癌物质。基因的基础表达水平致癌物质代谢相关ESCC的风险,100年的病例对照研究新诊断的患者,治疗ESCC和117健康对照组进行,四个新陈代谢的相对表达水平MTHFR基因(CYP2E1, GSTP1, NQO1)确定定量实时反向聚合酶链反应外周血单核细胞(PBMCs)。分析了相对的意思表达水平控制作为分界点,结果显示,ESCC的风险增加能显著降低表达式的问题(比值比(或)= 3.644,95%置信区间[CI: 1.947—-6.823)和NQO1(或= 1.870,95% CI: 1.046—-3.345)。对年龄、性别、吸烟状态,和酒精的使用,ESCC明显的风险增加与减少相关的问题的表达,MTHFR, NQO1、GSTP1 mRNA显示稳定与ESCC的风险(或= 2.640)逐步回归分析模型。减少了GSTP1在PBMCs的表达式与ESCC的风险显著相关,提出一个重要的病因线索在淮安ESCC的早期发展中国的人口。

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