食管鳞状细胞癌患者血清T辅助细胞类细胞因子的表达及其临床意义

目的 探讨食管癌患者血清T辅助细胞(Th1、Th2)类细胞因子的表达及其临床意义.方法 采用双抗体酶联免疫吸附法(ELISA)检测45例食管鳞状细胞癌患者及30名健康体检者外周血Th1干扰素(INF)-γ、白细胞介素(IL)-2]、Th2类(IL-4)细胞因子的含量.结果 食管癌患者Th1类细胞因子INF-γ、IL-2表达含量较健康对照组降低(11.51±2.15)、(16.31±2.27)ng/L,t=18.24,P＜0.01);(10.20±2.10)、(16.92±2.41)ng/L,t=15.31,P＜0.05];Th2类细胞因子(IL-4)较健康对照组升高(5.30 -0.11)、(2.23±0.29)ng/L,t=5.79,P＜0.05],且其表达趋势与肿瘤的TNM分期有关.结论 食管癌患者体内存在Th1/Th2漂移现象.该现象可能与肿瘤细胞发生免疫逃逸有关.

Abstract：

Objective To study the expression of Th1 and Th2 types cytokines in patients with esophageal squamous cell carcinoma and the clinical significance. Methods The expressions of Th1 ( INF-γ、IL-2) and Th2 (IL-4) types cytokines in cultured peripheral blood mononuclear cells (PBMC) from 30 healthy controls and 45 esophageal squamous cell carcinoma patients were determined by Enzyme-linked immunosorbent assay (ELISA). Results Compared with the control group, the expressions of Th1 type cytokines, IL-2 and INF-γwere significantly lower in the cultured PBMCs from the cancer patients (tINF-γ= 18. 24 ,tIL-2 = 15.31 ,Ps ＜0. 01 ) ,while the expression of Th2 type cytokines,IL-4 was significantly higher in the cultured PBMCs from the cancer patients ( tIL-4 = 5.79, P ＜ 0. 05 ). The expression changes of the cytokines showed a correlation with TNM (tumou-node-metastasis) stage of the tumor. Conclusion The Th1/Th2 shift existed in patients with esophageal squamous cell carcinoma and it might be one of the underline mechanisms of tumor immune escape.

Expression of Th type cytokines in patients with esophageal squamous cell carcinoma and the clinical significance

Objective To study the expression of Th1 and Th2 types cytokines in patients with esophageal squamous cell carcinoma and the clinical significance. Methods The expressions of Th1 ( INF-γ、IL-2) and Th2 (IL-4) types cytokines in cultured peripheral blood mononuclear cells (PBMC) from 30 healthy controls and 45 esophageal squamous cell carcinoma patients were determined by Enzyme-linked immunosorbent assay (ELISA). Results Compared with the control group, the expressions of Th1 type cytokines, IL-2 and INF-γwere significantly lower in the cultured PBMCs from the cancer patients (tINF-γ= 18. 24 ,tIL-2 = 15.31 ,Ps ＜0. 01 ) ,while the expression of Th2 type cytokines,IL-4 was significantly higher in the cultured PBMCs from the cancer patients ( tIL-4 = 5.79, P ＜ 0. 05 ). The expression changes of the cytokines showed a correlation with TNM (tumou-node-metastasis) stage of the tumor. Conclusion The Th1/Th2 shift existed in patients with esophageal squamous cell carcinoma and it might be one of the underline mechanisms of tumor immune escape.