早孕绒毛及蜕膜组织中酪氨酸磷酸酶-1/2(SHP-1,SHP-2)与吲哚胺2,3-双加氧酶(IDO)的表达及其相关性

Correlation of tyrosine phosphatase-1/2( SHP-1,SHP-2) with indoleamine 2,3-dioxygenase( IDO) in villi and decidua of early pregnancy

目的:研究母胎界面中吲哚胺2,3-双加氧酶(IDO)及酪氨酸磷酸酶-1/2(SHP-1,SHP-2)的表达及其相关性,以探索母胎免疫耐受的新机制。方法:30例正常早孕6~8周妇女行人工流产获取绒毛及蜕膜组织,用Western blot方法检测绒毛、蜕膜组织中的酪氨酸磷酸酶-1/2(SHP-1、SHP-2)与IDO的蛋白表达,分析IDO与SHP-1、SHP-2的相关性。结果:人早孕绒毛及蜕膜组织中均有SHP-1、SHP-2的表达,与IDO的表达呈正相关;SHP-1、SHP-2和IDO在蜕膜组织中的表达均高于绒毛;结论:在正常生理妊娠状态下,母胎界面中SHP-1、SHP-2可能参与调节IDO的表达,在维持母胎界面的免疫耐受状态起着重要作用。

Objective:To explore the correlation of tyrosine phosphatase-1/2(SHP-1,SHP-2)with indoleamine 2,3-dioxygenase(IDO)in maternal fetal interface.Methods:The expression of SHP-1,SHP-2 and IDO were detected by Western blot method and the relationship of the proteins was analysed,in human chorionic villi and decidua tissues of 30 cases of artificial abortion patients.Results:The expression of SHP-1,SHP-2 were positively correlated withthe expression of IDO in human chorionic villi and decidua;the expression of SHP-1,SHP-2 and IDO in decidual tissues were higher than those in the villi.Conclusion:Normal physiological state of pregnancy,SHP-1 and SHP-2 may be involved in the regulation of immune tolerance by positive regulation of IDO expression at maternal fetal interface.