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- W2183581749 abstract "Nephrotoxicity, particularly in the proximal tubule, limits the therapeutic efficacy of the antineoplastic drug cisplatin. The signaling mechanisms appear to be multifactorial, involving inflammation, oxidative stress, and caspase. Here we studied the role of intracellular prostaglandin E2 (iPGE2) in cisplatin's cytotoxicity in human proximal tubular HK-2 cells. Cisplatin-induced apoptotic cell death was prevented by inhibitors of the prostaglandin transporter (PGT) or by PGT knock-down or by pharmacologic inhibition of PGE2 EP receptors or cyclo-oxygenase-2 (COX-2). iPGE2 also increased in cisplatin-treated cells, which was probably due to increased expression of COX-2, microsomal PGE2 synthase-1 and PGT, and was prevented by inhibitors of PGT or COX-2. Thus iPGE2, most likely acting through intracellular EP receptors, mediates cisplatin-induced HK-2 cell death. Importantly, the tumoricidal effect of cisplatin on human cervical adenocarcinoma HeLa cells was not affected by a pharmacologic inhibitor of PGT. In conclusion, iPGE2 may play a significant role in the pathogenesis of cisplatin’s nephrotoxicity and treatment with PGT inhibitors might represent a novel strategy in its prevention." @default.
- W2183581749 created "2016-06-24" @default.
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- W2183581749 date "2016-02-01" @default.
- W2183581749 modified "2023-09-27" @default.
- W2183581749 title "Intracellular prostaglandin E2 mediates cisplatin-induced proximal tubular cell death" @default.
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- W2183581749 doi "https://doi.org/10.1016/j.bbamcr.2015.11.035" @default.
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