Helicobacter pylori enhances tumor necrosis factor-related apoptosis-inducing ligand-mediated apoptosis in human gastric epithelial cells

Figure 6 Effects of vacA and cagA on induction of TRAIL sensitivity by H pylori. A: AGS cells (5 × 10⁴ cells) were incubated with a different concentration of H pylori (ATCC strain 51932) for 12 h. B: AGS cells were incubated with H pylori NTUH-C1 and its cagA, vacA gene knock out mutant strains (cagA KO, vacA KO) in the concentration of 4 × 10⁷ CFU/5 × 10⁴ cells for 12 h (^bP < 0.01 when compared with H pylori alone without adding TRAIL samples).