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Abstract Title:

Fisetin Inhibits Cell Proliferation through the Induction of G/GPhase Arrest and Caspase-3-Mediated Apoptosis in Mouse Leukemia Cells.

Abstract Source:

Am J Chin Med. 2019 May 16:1-23. Epub 2019 May 16. PMID: 31096772

Abstract Author(s):

Yu-Hsiang Tsai, Jen-Jyh Lin, Yi-Shih Ma, Shu-Fen Peng, An-Cheng Huang, Yi-Ping Huang, Ming-Jen Fan, Jin-Cherng Lien, Jing-Gung Chung

Article Affiliation:

Yu-Hsiang Tsai

Abstract:

Fisetin, a naturally occurring flavonoid, is found in common fruits and vegetables and has been shown to induce cytotoxic effects in many human cancer cell lines. No information has shown that fisetin induced cell cycle arrest and apoptosis in mouse leukemia WEHI-3 cells. We found that fisetin decreased total viable cells through G/Gphase arrest and induced sub-Gphase (apoptosis). We have confirmed fisetin induced cell apoptosis by the formation of DNA fragmentation and induction of apoptotic cell death. Results indicated that fisetin induced intracellular Caincrease but decreased the ROS production and the levels ofm in WEHI-3 cells. Fisetin increased the activities of caspase-3, -8 and -9. Cells were pre-treated with inhibitors of caspase-3, -8 and -9 and then treated with fisetin and results showed increased viable cell number when compared to fisetin treated only. Fisetin reduced expressions of cdc25a but increased p-p53, Chk1, p21 and p27 that may lead to G/Gphase arrest. Fisetin inhibited anti-apoptotic protein Bcl-2 and Bcl-xL and increased pro-apoptotic protein Bax and Bak. Furthermore, fisetin increased the protein expression of cytochrome c and AIF. Fisetin decreased cell number through G/Gphase arrestthe inhibition of cdc25c and induction of apoptosis through caspase-dependent and mitochondria-dependent pathways. Therefore, fisetin may be useful as a potential therapeutic agent for leukemia.

Study Type : In Vitro Study

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