Objective To discuss the expression of urokinasc-type plasminogen activator (uPA) and its relationship with invasiveness in eutopic endometrial glandular epithelial cells in patients with endometriosis (EMS).Methods Nine cases of eutopic endometrial glandular epithelial cells of EMS patients and normal endometrium were cultivated and identified respectively by primary cell culture,and the expression of uPA was detected via western blot and RT-PCR,and the relationship between nPA and the migration and invasiveness of glandular epithelial cells was analyzed in Transwell chamber.Results The expression of uPA and mRNA was significantly increased in eutopic endometrial glandular epithelial cells than that in normal endometrium,indicating statistical significance (all P ＜ 0.05);the cell invasiveness of EMS eutopic endometrial glandular epithelial cells was significantly enhanced when compared with that of normal cells,which was statistically significant (P ＜ 0.05).Conclusion The expression of uPA in EMS eutopic endometrial glandular epithelial cells increases significantly,and it is obviously correlated with cell invasion and migration,revealing uPA is closely related with the occurrence of EMS.

Objective To explore the influence of OPN in eutopic glandular epithelial cells of endometriosis on the NF-κBp65 expression and its relationship with the cell invasion .Methods The eutopic primary glandular epithelial cells in 12 cases of endome-triosis were performed the primary isolation and culture .The cells were collected after 24 h OPN siRNA intervention .Western blot and RT-PCR methods were adopted to detect the expressions of OPN ,NF-κBp65 protein and its mRNA before and after interven-tion .The Transwell experiment was used to detect the change of cell invasiveness before and after intervention .Results The ex-pression of OPN protein and mRNA after interfering primary glandular epithelial cells by OPN siRNA was significantly decreased , and the difference was statistically significant (t1 =7 .92 ,t2 =9 .87 ,P<0 .05) .the expression of NF-κB p65 protein and mRNA after OPN siRNA interfering primary glandular epithelial cells was obviously weakened ,the difference was statistical significant (t=2 .38 ,P<0 .05) .the invasiveness of primary glandular epithelial cells after OPN siRNA intervention was significantly decreased ,the difference was statistically significant(t=2 .38 ,P<0 .05) .The expression of OPN and NF-κBp65 had a significantly positive corre-lation in eutopic endometrial glandular epithelial cells (r=0 .87) .Conclusion The expression of OPN and NF-κBp65 is significantly decreased after OPN siRNA interfering eutopic endometrial glandular epithelial cells ,therefore OPN most likely lead to the occur-rence and development of endometriosis via the NF-κB pathway .