Docetaxel suppressed cell proliferation and induced apoptosis of A549 cells and H460 cells. Cells were treated with different doses of docetaxel (0, 0.025, 0.05, 0.1, 0.2, 0.4 and 1.0 μM) for 48 h. A. The cell viability was determined using a Cell Counting kit-8 assay. B. Apoptosis of A549 and H460 cells were detected by Annexin V/PI assay following 72-h exposure to docetaxel. Results are shown as mean ± SEM. Data is representative of three independent experiments.