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Abstract Title:

Effect of genistein on apoptosis of lung adenocarcinoma A549 cells and expression of apoptosis factors.

Abstract Source:

J BUON. 2018 May-Jun;23(3):641-646. PMID: 30003731

Abstract Author(s):

Lin Zhang, Xinxin Ma, Youhong Dong

Article Affiliation:

Lin Zhang

Abstract:

PURPOSE: To investigate the effect of genistein (GEN) on the apoptosis of lung adenocarcinoma cells and the expression of Bcl-2 and Bax, so as to screen effective antitumor drugs for the clinical treatment of lung adenocarcinoma.

METHODS: Lung adenocarcinoma A549 cells were cultured in vitro and treated with different concentrations of GEN. The untreated cells were set as control group. MTT assay and Annexin V/PI double staining were used to analyze cell proliferation and apoptosis after GEN treatment. RT-qPCR and Western blot were used to detect the expression of Bcl-2 and Bax at mRNA and protein levels, respectively.

RESULTS: Cell p roliferation a ssay s howed t hat GEN c ould inhibit the proliferation of lung adenocarcinoma cell line A549 in vitro in a dose-dependent manner. Cell apoptosis assay showed that, compared with the control group, the apoptotic rate of A549 cells was significantly increased after GEN treatment. RT-qPCR and Western blot showed that the expression levels of anti-apoptotic factor Bcl-2 in A549 cells were significantly decreased at both mRNA and protein levels at 48 hrs after treatment with GEN, but the levels of pro-apoptotic Bax were significantly increased at both mRNA and protein levels.

CONCLUSION: GEN can inhibit the proliferation of A549 lung adenocarcinoma cells in vitro and induce their apoptosis. The antitumor activity of GEN is achieved by downregulating Bcl-2 and upregulating Bax. Therefore, GEN can be applied to the clinical treatment of lung adenocarcinoma.

Study Type : In Vitro Study

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