Activin A Stimulates Interleukin 8 and Vascular Endothelial Growth Factor Release From Cultured Human Endometrial Stromal Cells: Possible Implications for the Pathogenesis of Endometriosis

Reproductive Sciences - Tập 19 - Trang 832-838 - 2012
Ana Luiza L. Rocha1, Patrizia Carrarelli1, Romina Novembri1, Flavio de Pascalis1, Stefano Luisi1, Fernando M. Reis1,2, Felice Petraglia1
1Department of Pediatrics, Obstetrics and Reproductive Medicine, University of Siena, Policlinico “Santa Maria alle Scotte”, Siena, Italy
2Department of Obstetrics and Gynecology, Federal University of Minas Gerais, and National Institute of Hormones and Women’s Health, Belo Horizonte, Brazil

Tóm tắt

Activin A is an endometrial secretory product involved in inflammation and angiogenesis. The present study aimed to evaluate the effect of activin A and its antagonist follistatin on interleukin (IL)-6, IL-8, and vascular endothelial growth factor (VEGF) expression and release from cultured human endometrial stromal cells (HESCs) from women with and without endometriosis. The HESCs were collected from women with endometriosis (n = 6) and controls (n = 6). Primary cultures were treated with activin A at different doses or activin A plus follistatin. The IL-6, IL-8, and VEGF messenger RNA expression was evaluated by real-time polymerase chain reaction and protein release was evaluated by enzyme-linked immunosorbent assay. Unstimulated HESC from women with endometriosis secreted more IL-6 and IL-8 than controls. The addition of activin A increased IL-8 and VEGF secretion in HESC from controls and decreased IL-6 and IL-8 secretion in HESC from women with endometriosis. These effects were counteracted by follistatin. Activin A regulates the expression and secretion of IL-8 and VEGF in cultured HESC, and this mechanism appears to be disrupted in eutopic endometrial cells from women affected by endometriosis.

Tài liệu tham khảo

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