Bisphenol A impairs decidualization of human uterine stromal fibroblasts

• Published in: Reproductive toxicology (Elmsford, N.Y.) Vol. 73; pp. 339 - 344
• Main Authors: Olson, Mark R., Su, Renwei, Flaws, Jodi A., Fazleabas, Asgerally T.
• Format: Journal Article
• Language: English
• Published: United States Elsevier Inc 01.10.2017
• Subjects: Bisphenol-A; Cell proliferation; Decidualization; Endocrine disruptor; Endometrium; Fertility; HuF cells; HuF cells; Cell proliferation; Bisphenol-A; Fertility; Endocrine disruptor; Decidualization; Endometrium
• ISSN: 0890-6238; 1873-1708
• DOI: 10.1016/j.reprotox.2017.07.008

•BPA (20μg/mL) at supra-physiological doses impaired decidualization of human uterine stromal fibroblasts.•During decidualization, BPA at 20μg/mL decreased expression of PGR and ESR1.•During decidualization, BPA at 20μg/mL reduced cell proliferation and CCND2. This study examined the effect of bisphenol A (BPA) exposure on human uterine stromal fibroblast cells (HuF) undergoing decidualization. HuF cells were isolated and cultured for eight days in the presence of a decidualization-inducing cocktail, while concurrently exposed to physiological and supra-physiologic doses of BPA (1ng/mL, 10ng/mL, 0.5μg/mL, 10μg/mL and 20μg/mL). Decidualization markers, steroid hormone receptors and cell cycle gene expression were detected by qRT-PCR and cellular proliferation was assessed by KI-67 immunofluorescent staining and MTS assay. BPA impaired decidualization at 10μg/mL and 20μg/mL, but not at lower doses. Additionally, BPA at 20μg/mL decreased progesterone receptor and estrogen receptor-alpha compared to controls. The highest dose of BPA also reduced cellular proliferation and cyclin D2 expression compared to controls. These findings demonstrate that BPA disrupts in vitro decidualization of uterine stromal fibroblasts by altering steroid hormone receptor expression at higher concentrations but not at lower physiological doses.