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Abstract Title:

Inhibitory effects of genistein on metastasis of human hepatocellular carcinoma.

Abstract Source:

World J Gastroenterol. 2009 Oct 21 ;15(39):4952-7. PMID: 19842228

Abstract Author(s):

Yan Gu, Cheng-Fang Zhu, Ya-Lei Dai, Qiang Zhong, Bo Sun

Article Affiliation:

Department of General Surgery, Shanghai Ninth Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China. yangu@sjtu.edu.cn

Abstract:

AIM: To investigate the inhibitory effects of genistein on metastasis of MHCC97-H hepatocellular carcinoma cells and to explore the underlying mechanism.

METHODS: MHCC97-H hepatocellular carcinoma cells were exposed to genistein. A cell attachment assay was carried out in a microculture well pre-coated with fibronectin. The invasive activity of tumor cells was assayed in a transwell cell culture chamber, and cell cycle and apoptosis were evaluated by a functional assay. In addition, the expression and phosphorylation of FAK were detected by Western blotting. In situ xenograft transplantation of hepatocellular carcinoma was performed in 12 nude mice and lung metastasis of hepatocellular carcinoma was observed.

RESULTS: Genistein significantly inhibited the growth of MHCC97-H cells in vitro. Adhesion and invasiveness of MHCC97-H cells were inhibited in a concentration-dependent fashion, and the inhibitory effect of genistein was more potent in the 10 microg/mL and 20 microg/mL genistein-treated groups. Genistein caused G(0)/G(1) cell cycle arrest, an S phase decrease, and increased apoptosis. The expression and phosphorylation of FAK in MHCC-97H cells were significantly decreased. In situ xenograft transplantation of hepatocellular carcinoma was also significantly suppressed by genistein. The number of pulmonary micrometastatic foci in the genistein group was significantly lower compared with the control group (12.3 +/- 1.8 vs 16.6 +/- 2.6, P<0.05).

CONCLUSION: Genistein appears to be a promising agent in the inhibition of metastasis of hepatocellular carcinoma.

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