Figure 6

Synergistic antitumor effect of the combination of TC extract and 5-FU in vitro. Combination index (CI) of TC extract with 5-FU in 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) was calculated as described. Here, Fraction Affected on the x-axis denotes the proportion of cells affected (e.g., a Fraction Affected of 0.5 is equivalent to a 50% reduction in cell growth).