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Abstract Title:

Fisetin Modulates Human Oral Squamous Cell Carcinoma Proliferation by Blocking PAK4 Signaling Pathways.

Abstract Source:

Drug Des Devel Ther. 2020 ;14:773-782. Epub 2020 Feb 25. PMID: 32158195

Abstract Author(s):

Yanshu Li, Shiheng Jia, Wei Dai

Article Affiliation:

Yanshu Li

Abstract:

Objective: Human oral squamous cell carcinoma (OSCC) is a major cause of mortality and morbidity worldwide. There is an urgent need to identify bioactive molecules and potential target genes that could inhibit carcinogenesis for OSCC therapy. Fisetin (3,7,3',4'-tetrahydroxyflavone), a naturally occurring flavonoid, has been previously shown to have anti-proliferative activities in OSCC; however, its molecular mechanism is unknown.

Methods: Colony formation, cell viability, Boyden chamber, wound healing, and tumor xenograft assays were used to detect the impact of fisetin on OSCC cells in vitro and in vivo. Western blot analysis was used to examine the corresponding protein expression.

Results: Fisetin treatment significantly inhibited proliferation and promoted apoptosis by repressing PAK4 expression. Moreover, fisetin treatment attenuated cell migration by blocking PAK4 signaling pathways. In addition, the tumor xenograft showed anti-tumor growth effects of fisetin exposure in vivo.

Conclusion: Fisetin may represent a potential therapeutic strategy for human OSCC by targeting PAK4 signaling pathways.

Study Type : In Vitro Study

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Sayer Ji
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