Inhibitory effect of ZD6474 combined with adriamycin on MCF-7 human breast cancer cells in vitro
2010
Objective To investigate the killing effect of ZD6474 combined with adriamycin (ADM) on MCF-7 human breast cancer cells. Methods The inhibitory effects of ZD6474 and ADM alone and in combination on the proliferation of MCF-7 cells were assessed by MTT assay. The cell cycle and cell apoptosis were detected by flow cytometry. Results ZD6474 and ADM both significantly inhibited the proliferation of MCF-7 cells, showing a synergistic effect of their reactions in combined use (P0.05). ZD6474 or ADM alone caused cell cycle arrest at G0/G1 and S phases, respectively. Combined use of the two drugs resulted in significant reduction of the M-phase cell percentage and cell cycle arrest at G0/G1and S phases. The coadministration of the drugs significantly increased the apoptosis rate of the cells as compared with ZD6474 or ADM treatment alone (P0.05). Conclusions ZD6474 and ADM show a synergistic effect in inhibiting the proliferation and inducing apoptosis of MCF-7 cells.
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