Abstract
Objective: To investigate the effect of selenium dioxide (SeO2) on human pulmonary adenocarcinoma GLC-82 cell lines to reveal its probable mechanism and the relationship between apoptosis and SeO2. Methods: Methyl thiazolyl tetrazolium (MTT) method, flow cytometry (FCM), DNA agarose gel electrophoresis, light and electron microscope were used to study cell apoptosis in human pulmonary adenocarcinoma cell line GLC-82 treated by SeO2 at different concentrations (3, 10, 30 µmol/L) and for different times (24, 48, and 72 h). Results: SeO2 significantly inhibited the proliferation and induced the cell apoptosis of GLC-82 at the different concentrations after treatment of 48 h and 72 h. Conclusion: Selenium dioxide could inhibit the growth of lung cancer GLC-82 cells through inducing apoptosis. The effect of inhibition is dose-dependant and time-dependant.
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