RESUMO
Objective:This study aimed to explore the effects of trichosanthin on the proliferative inhibition and apoptosis induc-tion in human lung carcinoma A549 cells. Methods:A549 cells were treated with various concentrations of TCS. The inhibitory effects in proliferation were detected by the MTT method. The microfilament changes were observed by transmission electron microscopy. Apoptosis rate and cell cycle were determined by flow cytometry. Results:A549 cells treated with TCS presented apoptotic changes and decreased cell activity. When the concentration increased and time was prolonged, the inhibition rate increased correspondingly. Conclusion:Pharmacological doses of TCS inhibited the proliferation and differentiation in lung carcinoma A549 cells and affected the function in A549 cells by changes in the cytoskeleton.