Figure 5

Effect of TC extract and 5-FU on growth of human cancer cell lines and normal cells. Human lung cancer cell line A549 (A), human breast cancer cell line MCF-7 (B), human prostate cancer cell line PC-3M-1E8 (C), and human embryo lung cell line HEL (D) were exposed to graded concentrations of TC extract (0.1-300 μg/ml), 5-FU (0.1-300 μg/ml), or the combination for 72 h. The proportion of live cells was quantified by ATP assay. Each point represents the mean ± S.D. (n = 5), and asterisks indicate significance at P < 0.05, compared with 5-FU alone.