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Abstract Title:

Gallic acid has anticancer activity and enhances the anticancer effects of cisplatin in non‑small cell lung cancer A549 cells via the JAK/STAT3 signaling pathway.

Abstract Source:

Oncol Rep. 2019 Mar ;41(3):1779-1788. Epub 2019 Jan 22. PMID: 30747218

Abstract Author(s):

Tingxiu Zhang, Lijie Ma, Pengfei Wu, Wei Li, Ting Li, Rui Gu, Xiaoping Dan, Zhiwei Li, Xianming Fan, Zhenliang Xiao

Article Affiliation:

Tingxiu Zhang

Abstract:

Gallic acid (3,4,5‑trihydroxybenzoic acid; GA), a plant‑derived natural phenolic compound, has been reported to prevent the development and progression of various types of cancers. However, there has been little elaboration of the anticancer effects and underlying mechanisms of GA alone and/or in combination withcisplatin in non‑small cell lung cancer (NSCLC). The aim of the present study was to investigate the anticancer effects of GA on NSCLC A549 cells and its auxiliary effects on the anticancer activity of cisplatin. The results revealed that GA inhibited the proliferation and induced the apoptosis of NSCLC A549 cells in dose‑ and time‑dependent manners, which was associated with upregulated B‑cell lymphoma 2 (Bcl‑2)‑associated X protein (Bax) and downregulated Bcl‑2. Notably, the results also indicated that GA enhanced the anticancer effects of cisplatin in the inhibition of cancercell proliferation and the induction of cell apoptosis following elevated Bax expression and suppressed Bcl‑2 expression. Furthermore, the results of the present study also demonstrated that GA exerted independent anticancer effects on NSCLC A549 cells, and facilitated the anticancer effects of cisplatin by modulating the JAK/STAT3 signaling pathway and downstream apoptotic molecules. These results may serve as a rationale for further basic studies and preclinical investigations on the anticancer effects of GA and its auxiliary effects on cisplatin function in human NSCLC.

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