黏附分子VCAM-1和ICAM-1在子宫内膜异位症中的表达及意义

目的:探讨血管细胞黏附分子(VCAM-1)和细胞间黏附分子(ICAM-1)在子宫内膜异位症(EMT)发病中的作用及意义。方法:采用荧光定量聚合酶链反应技术(Real-Time PCR)和免疫印迹法(Western-Blot)分别检测EMT(15例)患者异位内膜、在位内膜和对照组(15例)子宫内膜中VCAM-1、ICAM-1mRNA及蛋白的表达情况。采用双抗夹心酶联免疫吸附实验(ELISA)检测EMT组(44例)与对照组(28例)中可溶性VCAM-1(s VCAM-1)和可溶性ICAM-1(s ICAM-1)的水平,并对VCAM-1、ICAM-1在不同组中的mRNA、蛋白及血清中的表达行相关性分析。结果:1EMT异位内膜组VCAM-1、ICAM-1mRNA的表达均明显高于在位内膜组及对照组(P0.01);在位内膜组VCAM-1、ICAM-1mRNA的表达与对照组差异无统计学意义(P0.05)。2EMT异位内膜组VCAM-1、ICAM-1蛋白的表达明显高于在位内膜组及对照组(P0.01),在位内膜组VCAM-1蛋白表达高于对照组(P0.01);EMT在位内膜组ICAM-1蛋白的表达与对照组比较差异无统计学意义(P0.05)。3EMT患者血清中s VCAM-1和s ICAM-1水平均明显高于对照组(P0.01),Ⅲ、Ⅳ期患者血清中s ICAM-1水平较Ⅰ、Ⅱ期患者明显升高(P0.01)。4EMT异位内膜组组织中VCAM-1与ICAM-1在mRNA、蛋白表达及血清中的水平均无相关性(P0.05)。结论:异位内膜的VCAM-1和ICAM-1的表达异常可能在EMT的发生发展中具有重要作用,但ICAM-1与VCAM-1在EMT中可能具有各自的信号通路及蛋白表达的途径。

Expression of Vascular Cell Adhesion Molecule 1 and Intercellular Adhesion Molecule 1 in Endometrium and Serum in Endometriosis

Objective:To study the expressions of Vascular Cell Adhesion Molecule 1 (VCAM-1) and Intercellular Adhesion Molecule 1 (iCAM-1) in patients with endometriosis and to explore its effect on the onset of endometriosis.Methods:VCAM-1 mRNA and ICAM-1 mRNA were detected by real-time PCR method in 15 specimens of eutopic endometrium and 15 specimens of ectopic endometrium from patients with endometriosis(EMT group)and 15 specimens of endometrium from patients without endometriosis(control group).VCAM-1 and ICAM-1 protein were detected by Western-Blot method.Soluble VCAM-1 and soluble ICAM-1 in 44 serum of patients with endometriosis(EMT group) and 28 serum of patients without endometriosis(control group) were tested by ELISA.Meanwhile the correlation of expressions of VCAM-1 and ICAM-1 were analyzed in different groups.Results:①The expressions of VCAM-1 mRNA and ICAM-1 mRNA in ectopic endometrium were significantly higher than those of eutopic endometrium and the controls(P ＜0.01).There was no significant different mRNA expression between eutopic group and control group(P＞0.05).②The protein expressions of VCAM-1 and ICAM-1 in eutopic group were significantly higher than those of ectopic group and the control group(P ＜0.01).The protein expression of VCAM-1 in eutopic group were higher than those in the controls group(P＜0.01).There was no significant different protein expression of ICAM-1 between eutopic group and the controls group(P ＞0.05).③The concentration of sVCAM-1 and sICAM-1 in serum from patients with EMT were significantly higher than those in the control group(P＜0.01).The concentration of slCAM-1 in serum from patients with EMT in stage Ⅲ-Ⅳ were significantly higher than those in stage Ⅰ-Ⅱ (P ＜ 0.01).④There was no significant correlation in the expression of mRNA,protein and serum between VCAM 1 and ICAM-1 in ectopic group and eutopic group(P ＞ 0.05).Conclusions:The abnormal expressions of VCAM-1 and ICAM-1 in ectopic endometrium may play an important role in the development of endometriosis.The signaling pathways and protein expression way may be different between VCAM 1 and ICAM 1 in endometriosis.