Bisphenol A and estradiol are equipotent in antagonizing cisplatin-induced cytotoxicity in breast cancer cells.

Bisphenol A and estradiol are equipotent in antagonizing cisplatin-induced cytotoxicity in breast cancer cells.
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DOI:
10.1016/j.canlet.2009.09.005
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发表时间:
2010-04-28
期刊:
影响因子:
9.7
通讯作者:
Ben-Jonathan, Nira
Ben-Jonathan, Nira
中科院分区:
医学1区
文献类型:
--
作者:
LaPensee, Elizabeth W.;LaPensee, Christopher R.;Fox, Sejal;Schwemberger, Sandy;Afton, Scott;Ben-Jonathan, Nira

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Resistance to chemotherapy is a major problem facing breast cancer patients. Cisplatin, a highly effective DNA-damaging drug, has shown only little success in breast cancer treatment. We are reporting that low nanomolar doses of bisphenol A (BPA) or estradiol antagonize cisplatin cytotoxicity in breast cancer cells, with their effects not mediated via classical estrogen receptors. Although both compounds increase the expression of Bcl-2, a Bcl-2 inhibitor completely blocked the protective effects of BPA while only partially affecting those of estradiol. Blockade of BPA and E2 actions should sensitize ER-negative breast tumors to anti-cancer drugs and allow for the inclusion of cisplatin in treatment regimens.
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