title: Association between macrophage migration inhibitory factor in the endometrium and estrogen in endometriosis.
abstract: Recent studies have shown that macrophage migration inhibitory factor (MIF) has a possible role in endometriosis-related pain and infertility, yet it has not been explored whether the mRNA level of MIF is altered in endometrial tissues from patients with endometriosis. The aim of the present study was to compare the expression of MIF in endometrial tissues from women with and without endometriosis, and to analyze the association between endometrial MIF expression and 17β-estradiol (E2). The protein and mRNA expression of MIF in the human endometrial tissue was assessed by western blotting and reverse transcription-polymerase chain reaction analysis, respectively. The MIF expression of women with endometriosis was found to be significantly higher than that of the controls. A positive correlation was noted between the serum E2level and MIF expression. In endometrial cells from women with endometriosis, the level of E2-induced MIF upregulation was significantly higher than that in cells from women without endometriosis. In conclusion, this study demonstrated a significant increase in MIF expression in the endometrial tissues of women with endometriosis and an association between MIF expression and E2level. MIF expression in endometrial cells from patients with endometriosis showed an increased sensitivity to stimulation by E2.
authors.affiliation: Department of Gynecology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310000, P.R. China.
authors.forename: Xiao
authors.initials: X
authors.lastname: Zhang
authors.affiliation: Department of Gynecology, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310000, P.R. China.
authors.forename: Lin
authors.initials: L
authors.lastname: Mu
keywords: 17β-estradiol; endometriosis; estrogen; eutopic endometrium; macrophage migration inhibitory factor