Modulation of human enteric epithelial barrier and ion transport function by Peyer’s patch lymphocytes

Figure 4 Induction of hIL-8 expression in Caco-2 cells by Shi-gella F2a-12 LPS in different culture groups. Comparison of hIL-8 expression in Caco-2 cells in the absence or presence of LPS for 8-h and 24-h between three culture groups by semi-quantitative RT-PCR with Peyer’s patch lymphocytes as nega-tive control. The values indicate mean ± SE; ^aP < 0.05, ^bP < 0.01 (compared to its own control) ; ^cP < 0.05 (compared to separated co-culture LPS pre-treatment for 8-h).