Fig. 2

Effects of COE on the viability of the HCC cells. The HepG2/mTOR⁺ cells were treated with either 0.1%DMSO as solvent control or different concentrations of COE (20, 40, 80, 160, and 320 mg/L) for 24, 48, and 72 h, respectively, and the cell viability was evaluated with MTT assay. (^*P < 0.05, ^**P < 0.01, ^***P < 0.001, compared with the solvent control)