Wnt6 decreases apoptosis in HCT116 and SW480 cells. The percentage of apoptotic cells in (A) HCT116 and (B) SW480 cells in CON, shNC, shWnt6, EV and shWnt6 groups was evaluated using flow cytometry. **P<0.01 vs. shNC; ##P<0.01 vs. shWnt6. sh, short hairpin; NC, negative control; EV, empty vector; p, plasmid; CON, control.