RESUMEN
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 de-cidua;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.