An evidence in vitro for the influence of bisphenol A on uterine leiomyoma

ObjectiveTo study the effect and mechanism of environmental estrogens bisphenol A (BPA) on uterine leiomyoma (UL) cells.MethodsPrimary cultures and subcultures of human UL cells, which were identified by immunocytochemical staining with a monoclonal anti-α-smooth muscle actin antibody, were performed. The viability of cells in different concentration of bisphenol A of 24 h, 48 h and 72 h were analyzed by CCK-8. The expressions of mRNA of ERα, IGF-1 and VEGF in all groups were detected by real-time quantitative PCR assay, and then the expressions of proteins detected by Western blot assay.ResultsBPA promoted the growth of UL cells and the expressions of ERα, IGF-1 and VEGF, which had positive correlation with the concentration and action time of BPA treatment.ConclusionBPA promotes the growth of leiomyoma cells. The expressions of IGF-1, VEGF can be up-regulated by ERα, which may be possible mechanism of BPA promote the growth of leiomyoma cells.