fig4

Figure 4. After eight days of the clonogenic assay, colonies were counted (A), and the percent of colonies formed was plotted on a graph (B). Each treatment group reduced the Colony Formation Efficiency of the cells significantly, with the minimum number of colonies in the combination treatment group at 12.7%, compared to the negative control, which had 24.8% of colonies. I: negative control; II: PTX 10 nM; III: TTA-A2 50 nM; IV: TTA-A2 100 nM; V: PTX 10 nM + TTA-A2 100 nM (non-significant P > 0.05, *P < 0.05, **P < 0.01, ***P < 0.001). PTX: Paclitaxel.