Untreated and treated C26 cells were harvested and washed with PBS and resuspended in 500 of binding buffer, and
then, 5 of annexin-v-fitc and 5 of PI were added. After supravital staining, the cells were immediately analyzed using flow cytometry
Fuethermore, the cell-permeable cawpase inhibitor Z-VAD-FMK was used to study whether caspase family protein kinases were involved in ZS-induced apoptosis in C26 cells [21]
Briefly, after
treating with 0.5 lM and 0.8 lM ZS combined with or without
10 lM Z-VAD-FMK for 24 h, apoptosis was evaluated in C26 cells
using FCM.