Objective:To study the effected of berberine on cell proliferation,cell cycle and CD44V6 expression in gastric cancer cell(MGC-803).To investigate the mechanism of inhibitory tumor proliferation and tumor metastasis.Methods:MTT assay was used to determine the cell proliferation effected by berberine.The change of cell morphology and cell cycle were detected by laser scanning confocal microscope(LSCM) and flow cytometry,respectively.Immunohistochemical staining and flow cytometry were applied to detect the CD44V6 expression on cell surface.Results:It was found that the proliferation of MCG-803 is inhibited by berberine.The inhibitory rate of drug(10、20、40 μg/ml)is 36 2%、49 7% and 59 3% respectively in a dose-dependent manner.The cell nuclear condensation and formation of apoptotic bodies were found under LSCM.The cell cycle were arrested in G0-G1.The expression of CD44V6 on cell surface was obviously decreased.Conclusion:Berberine could inhibit proliferation of MGC-03 by inducing apoptosis and arresting cell in G0-G1.Berberine could inhibit tumor metastasis by decreasing the expression of CD44V6 on MCG-803.
Objective:To study the effect of berberine on cell proliferation, cell cycle and cell apoptosis in bFGF activated HUVEC. To investigate the mechanism of inhibitory tumor angiogenesis.Methods:MTT assay was used to determine the cell proliferation effect by berberine. The change of cell morphology and cell cycle was detected by laser scanning confocal microscope and flow cytometry, respectively. Flow cytometry was applied to detected the cell apoptosis rate.Results:The proliferation of HUVEC was inhibited by berberine in a dose-dependent manner. The cell cycle were arrested in G0-G1.The cell nuclear condensation and nuclear cataclasm were found under laser scanning confocal microscope. Simultaneity increased intracellular calcium ion was observed after drug treatment. Berberine induced activated HUVEC apoptosis.Conclusion:Berberine could inhibit tumor angiogenesis by arresting activated HUVEC in G0-G1, proliferation and apoptosis of tumor.
