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Abstract Title:

Anti-proliferative and chemosensitizing effects of luteolin on human gastric cancer AGS cell line.

Abstract Source:

Mol Cell Biochem. 2008 Jun;313(1-2):125-32. Epub 2008 Apr 9. PMID: 18398671

Abstract Author(s):

Bin Wu, Qiang Zhang, Weiming Shen, Jun Zhu

Article Affiliation:

Department of Pharmacy, Shanghai Sixth Hospital Affiliated to Shanghai Jiaotong University, Shanghai, China.

Abstract:

To investigate the anti-proliferative and chemosensitizing effects of luteolin on human gastric cancer, gastric cancer AGS cells were treated with luteolin and/or other chemotherapeutic agents. Cell growth was assessed by MTT assay, cell cycle and apoptosis were assessed by flow-cytometric analysis, and the expression of major proteins regulating cell cycle and apoptosis was also detected. The results showed that luteolin inhibited the growth of gastric cancer cells in a dose- and time-dependent manner. Flow cytometry revealed that the percentage of cells at G2/M phase increased dose-dependently. The protein levels of Cdc2, Cyclin B1 and Cdc25C were reduced and p21/cip1 was up-regulated after the treatment with luteolin. Furthermore, luteolin induced apoptosis in gastric cancer AGS cells. Western blotting showed that luteolin treatment significantly increased the levels of pro-apoptotic proteins, including Caspase-3, 6, 9, Bax, and p53, and decreased the levels of anti-apoptotic protein Bcl-2, thus shifting the Bax/Bcl ratio in favor of apoptosis. It was also demonstrated that a combinational treatment of cisplatin and luteolin induced more effectively cell growth inhibition, compared to cisplatin treatment alone. These findings indicate the anti-proliferative and chemosensitizing effects of luteolin on human gastric cancer AGS cells and luteolin may be a promising candidate agent used in the treatment of gastric cancer.

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