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Abstract Title:

Low concentrations of bisphenol A promote human ovarian cancer cell proliferation and glycolysis-based metabolism through the estrogen receptor-α pathway.

Abstract Source:

Chemosphere. 2017 Oct ;185:361-367. Epub 2017 Jul 9. PMID: 28709040

Abstract Author(s):

Xiao-Yu Shi, Zhe Wang, Liyu Liu, Li-Min Feng, Nan Li, Sijin Liu, Hui Gao

Article Affiliation:

Xiao-Yu Shi

Abstract:

Bisphenol A (BPA) is one of the most prevalent chemicals in many products used on a daily basis, making human exposure to it incredibly pervasive and raising concerns about its health consequences. One area of research focus has been the role of BPA exposure in promoting the development of ovarian cancer; however, the doses used in most of previous studies are relatively high and most likely exceed physiologically relevant levels. At the same time, few studies have described potential mechanisms underlying the link between BPA and increased cancer risk. To address these concerns we investigated the mechanism(s) by which low concentrations of BPA promote proliferation and energy metabolism in the human ovarian cancer cell line OVCAR-3. We found that even sub-toxic BPA concentrations not only drove increased OVCAR-3 cell proliferation but also promoted glycolysis-based metabolism, as evidenced by elevated cell viability, accelerated cell proliferation, increased levels of intracellular ATP, lactate, and pyruvic acid. Importantly, all of these effects were estrogen receptor α (ERα) dependent, as siRNA-mediated ERα silencing decreased BPA-induced proliferation, pinpointing the crucial role of ERα-conducted signaling in BPA-induced biological effects. Together, our findings revealed a new mechanism through which BPA promoted cell proliferation by reinforcing glycolysis-based energy production dependenton ER signaling. This study would thus open a new path to understand BPA-induced biological effects on tumor cells.

Study Type : In Vitro Study

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