CASP3 and colorectal cancer: Consistent with our MTT results, which revealed that the AR-EA and AR-Met extracts have significant anti-proliferative effects, our DAPI-PI and Western blotting results for C-PARP and cleaved Caspase 3 confirmed that these extracts can promote apoptosis in a significant proportion of HCT116 and HT29 colorectal cancer cells.