Effect of ASsiRNA and rADI on viability of HeLa and MCF-7 cells. Cells were seeded in 24-well plates and treated with different conditions for 4 days, and cell viability was evaluated by MTT assay. These conditions included PBS as control, lipofectamine, ASsiRNA, NCsiRNA, 1 mU/mL of rADI, or combinations of them as shown in the figure. Each group was compared to control on the same day, and the error bars represent standard deviation (n = 6). * p < 0.05, *** p < 0.001.