Nov 12, 2009

Endometriotic epithelial cells induce MMPs expression in endometrial stromal cells via an NFkappaB-dependent pathway

Gynecological Endocrinology : the Official Journal of the International Society of Gynecological Endocrinology
Hui ZhangXingbo Zhao


To explore the stroma-epithelium interactions in endometriosis and to identify the possible signalling pathways involved in this cross-talk. Laboratory study via primary cultured endometrial stromal and epithelial cells. University Hospital. Fifteen patients with endometriosis confirmed by histopathology were recruited in the study, and 12 women free of endometriosis were used as control group. Specific NFkappaB inhibitor 1-Pyrrolidinecarbodithioic acid ammonium salt (PDTC) was used in cell cultures. The expression and secretion of MMP-2, MMP-9, TIMP-1, TIMP-2 and the DNA-binding activity of NFkappaB in normal endometrial stromal cells or in co-cultures with normal or endometriotic epithelial cells from patients with endometriosis. Endometrial epithelial cells induced MMP-9 and MMP-2 expression in normal stromal cells in vitro. In co-cultures with endometriotic epithelial cells, normal endometrial stromal cells expressed and secreted higher MMP-2 (p < 0.05) and MMP-9 (p < 0.05). Specific inhibition of NFkappaB pathway in stromal cells abolished this induction effect by epithelial cells. Endometriotic epithelial cells induce MMPs expression and secretion in normal endometrial stromal cells via an NFkappaB-dependent pathway in vi...Continue Reading

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Mentioned in this Paper

Biochemical Pathway
Laboratory Studies
Coculture Techniques
Squamous Transitional Epithelial Cell Count
Cell Culture Techniques
Matrix Metalloproteinase 2

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