Figure 3.

Growth curves of PC9 cells in vitro. In contrast to the cells that grew to 380% of the originally plated cell number without any agent after 72 h of culture, metformin, gefitinib and cisplatin suppressed cell growth. Because the concentrations of the agents adopted here were almost equivalent in suppression, they were used for further experiments. The dots and bars represent the mean and SE (n=3), respectively.