Fig. 3.

The effect of 5-fluorouracil (5-FU) and quercetin (Q) on the apoptosis of Caco-2 cells for 48 hours. Dot-plots from flow cytometric illustrating apoptotic status in Caco-2 cells. Cells in the upper-left quadrant are necrotic, cells in the upper-right quadrant have late apoptosis, the lower-left quadrant shows normal living cells, and the cells in the lower-right quadrant are early apoptotic cells(A–E), the total percentage of apoptosis in Caco-2 cells treated with the indicated concentrations of 5-FU, Q, combination 1 (QFH), and combination 2 (QFL) for 48 hours (F) designated as *p < 0.05 vs. control group, #p < 0.05 vs. 5-FU group and Ωp < 0.05 vs. Q group and ∆p < 0.05 vs. QFL group