Article Publish Status: FREE
Abstract Title:

Identification of Renoprotective Phytosterols from Mulberry () Fruit against Cisplatin-Induced Cytotoxicity in LLC-PK1 Kidney Cells.

Abstract Source:

Plants (Basel). 2021 Nov 17 ;10(11). Epub 2021 Nov 17. PMID: 34834844

Abstract Author(s):

Dahae Lee, Seoung Rak Lee, Bang Ju Park, Ji Hoon Song, Jung Kyu Kim, Yuri Ko, Ki Sung Kang, Ki Hyun Kim

Article Affiliation:

Dahae Lee


The aim of this study was to explore the protective effects of bioactive compounds from the fruit of the mulberry tree (L.) against cisplatin-induced apoptosis in LLC-PK1 pig kidney epithelial cells.fruit is a well-known edible fruit commonly used in traditional folk medicine. Chemical investigation offruit resulted in the isolation and identification of six phytosterols (-). Their structures were determined as 7-ketositosterol (), stigmast-4-en-3β-ol-6-one (), (3β,6α)-stigmast-4-ene-3,6-diol (), stigmast-4-ene-3β,6β-diol (), 7β-hydroxysitosterol 3-O-β-d-glucoside (), and 7α-hydroxysitosterol 3-O-β-d-glucoside () by analyzing their physical and spectroscopic data as well as liquid chromatography/mass spectrometry data. All compounds displayed protective effects against cisplatin-induced LLC-PK1 cell damage, improving cisplatin-induced cytotoxicity to more than 80% of the control value. Compounddisplayed the best effect at a relatively low concentration by inhibiting the percentage of apoptotic cells following cisplatin treatment. Its molecular mechanisms were identified using Western blot assays. Treatment of LLC-PK1 cells with compounddecreased the upregulated phosphorylation of p38 and c-Jun N-terminal kinase (JNK) following cisplatin treatment. In addition, compoundsignificantly suppressed cleaved caspase-3 in cisplatin-induced LLC-PK1 cells. Taken together, these findings indicated that cisplatin-induced apoptosis was significantly inhibited by compoundin LLC-PK1 cells, thereby supporting the potential of 7-ketositosterol () as an adjuvant candidate for treating cisplatin-induced nephrotoxicity.

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