Fig. 2
Effect of OL on apoptosis of Tu686 and CAL-27 cells. A Flow cytometry apoptosis diagrams for different treatment groups with Tu686 (left lane) and CAL-27 (right lane) cells. The dose of 25 µg/mL of OL was selected for flow cytometry. The cells treated with PBS, 25 µg/mL OL, 10 ng/mL TGF-β1, and 10 ng/mL TGF-β1 + 25 µg/mL OL, were named control, OL, TGF-β1, and TGF-β1 + OL groups, respectively. B Comparison column chart of the apoptosis ratio of the four groups with Tu686 cells. Total apoptosis ratio (including early and late) was detected for each group. *p <0.05 vs. control or TGF-β1 group (tests were repeated for 3 times)