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- W2384398469 abstract "Objective:To investigate the effects of quercetin on human gastric cancer lines BGC823 and on the expression of p53,bcl-2,bax and PCNA.Methods: The number of viable cells is ascertained by trypan blue dye exclusion test.Morphological changes of apoptotic cells are observed by electronic microscopy,cell cycle are analysed by flow cytometry.p53,bcl-2,bax and PCNA expression by immunocytochemistry.Results: Quercetin has a significant inhibition to growth and proliferation of human gastric cancer line BGC823 in vitro in a concentrationdependent manner,the IC50 is 28.12μm after exposure quercetin for 48h.Electron microscopy provides evidence that apoptosis occurs in the gastric cancer cells of treatment groups.FCM analyses show that quercetin arrested BGC823 cells at the S phase.The study of immunocytochemistry shows that the expression of p53 and PCNA is significantly inhibited by 10μm quercetin,and bax increased.Conclusion: Dose-dependent inhibitory effects of quercetin on the growth of human gastric cancer cell line are remarkable.Quercetin could induce apoptosis of BGC823 and keep the cell cycle at S phase from down-regulating expression of p53 and PCNA.The activation of bax and the suppression of bcl-2 may also contribute to the apoptosis mechanism." @default.
- W2384398469 created "2016-06-24" @default.
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- W2384398469 date "2006-01-01" @default.
- W2384398469 modified "2023-09-24" @default.
- W2384398469 title "Effects of quercetin on proliferation of gastric cancer lines BGC823 and the expression of p53,Bcl-2/Bax and PCNA" @default.
- W2384398469 hasPublicationYear "2006" @default.
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