CFEZO induces activities of caspases 3 and 9 in HepG2 cells. HepG2 cells were seeded on a 96-well luminometer plate (104 cells/well) and treated with indicated concentrations of CFEZO for 24 h. Then activities of caspases 3/7, 9, and 8 were evaluated as detailed in the Materials and Methods section. Values present the mean of triplicates ± SD, and each experiment was performed three times. Statistical significance in caspase activities of *p < 0.05, **p < 0.01, and ***p < 0.001 compared to that of control.