Effect of EPEC endotoxin and bifidobacteria on intestinal barrier function through modulation of toll-like receptor 2 and toll-like receptor 4 expression in intestinal epithelial cell-18

Figure 3 Toll-like receptor 2 and toll-like receptor 4 protein expression in intestinal epithelial cell-18 cells after treatment with EPEC endotoxin and bifidobacteria intervention for 16 h. TLR2 and TLR4 protein expression levels in the EPEC group were significantly higher than in the control group. TLR2 protein expression levels in the B.infantis, B.longum and B. youth groups were significantly lower than in the control group. TLR4 protein expression was down-regulated in the B.bifidum and B. youth groups. ^aP < 0.05 vs the control group. TLR: Toll-like receptor.