CXCL8 and infection: In this study, IL-8 and hBD-3 secretion from LS174T cells reduced after S. Typhimurium ΔyqiC infection compared with that of S. Typhimurium SL1344, and the reduced IL-8 secretion was non-significantly higher on S. Typhimurium ΔyqiC infection than on S. Typhimurium ΔfliC infection (Figure 2A).