Caffeine Sensitizes U87-MG Human Glioblastoma Cells to Temozolomide through Mitotic Catastrophe by Impeding G2 Arrest

Figure 2

MTT results for caffeine toxicity. Dosages below 1 mM did not affect the viability of U87-MG cells. Therefore, 1 mM was chosen as the target dosage in the further experiments. p < 0.05 compared to control.