percentage
Figure 3: Cell survival percentage obtained in MTT assay, expressed as survival percentage. (A) CAL27 cells cultured in 3D spherorids or in 2D monolayers when exposed to various concentrations of erlotinib, docetaxel, and bleomycin, for 72 h; and (B) DU145 cells in 3D spheroids or in 2D monolayer when exposed to various concentrations of rapamycin, docetaxel, and camptothecin for 72 h. Data is expressed as mean ± standard deviation based on three independent experiments with triplicate wells for each drug concentration.