Cells were treated with pemetrexed (20 μM), cisplatin (40 μM), or cSBL (1 μM) for 0–72 h. The number of cells was estimated using a Muse™ Count & Viability Kit. (A) Cell growth rates were calculated as the ratio of the cell number at 72 h to the cell number at 0 h and presented as a fraction of the controls. (B) The number of live and dead cells every 24 h is shown. Statistically significant differences in the live cell number at 72 h were observed in the treatment groups compared to the control (***). Statistically significant differences in the dead cell number at 72 h were observed in cSBL-treated cells compared to cisplatin- or pemetrexed-treated cells (††). *p < 0.05, **p < 0.01, ***p < 0.001, ††p < 0.01.