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Abstract Title:

Protective effect of lanostane triterpenoids from the sclerotia of Poria cocos Wolf against cisplatin-induced apoptosis in LLC-PK1 cells.

Abstract Source:

Bioorg Med Chem Lett. 2017 07 1 ;27(13):2881-2885. Epub 2017 Apr 27. PMID: 28487074

Abstract Author(s):

Dahae Lee, Seulah Lee, Sang Hee Shim, Hae-Jeung Lee, Youkyung Choi, Tae Su Jang, Ki Hyun Kim, Ki Sung Kang

Article Affiliation:

Dahae Lee

Abstract:

Cisplatin-induced nephrotoxicity is a serious adverse effect that limits the use of cisplatin in cancer patients. In the present study, we investigated the protective effect of lanostane triterpenoids (1-10) isolated from the ethanolic extract of Poria cocos Wolf against cisplatin-induced cell death in LLC-PK1 kidney tubular epithelial cells. Treatment of cisplatin induced significant cell death, which was suppressed by treatment with dehydroeburicoic acid monoacetate (1) and 3β-acetoxylanosta-7,9(11),24-trien-21-oic acid (9). Compound 1 exhibited the highest efficacy among the tested compounds and was thus subjected to further mechanistic studies. The increase in the percentage of apoptotic cells induced by cisplatin reduced by 4.3% after co-treatment of cells with compound 1 (50 and 100μM). Furthermore, phosphorylation of the mitogen-activated protein kinases JNK, ERK, and p38, and caspase-3, which characterize oxidative stress-mediated apoptosis, increased significantly after treatment with cisplatin, and decreased after treatment with compound 1. These resultsindicate that the renoprotective effects of compound 1 may be mediated by its anti-apoptotic activity.

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