Fig. 6.

Effect on the ability of intestinal CD11b⁺ CD16⁺ DCs and SWC3a⁺ SLA-II-DR⁺ DCs to sample the heat-inactivated E. coli, migrate and stimulate T cell proliferation in SHXB- and STC3-infected piglets.

Bar graphs show the number of CD11b⁺CD16⁺ DCs (A) and SWC3a⁺SLA-II-DR⁺ DCs (B) in the intestinal villus and lamina propria that sampled the heat-inactivated E. coli and migrated at 48 h postinfection with SHXB and STC3. Bar graphs show the proliferation of CD3⁺ (C), CD4⁺ (D), and CD8⁺ (E) T cells in the intestinal villus and lamina propria when the heat-inactivated E. coli were injected into the SHXB- and STC3-infected piglets 48 h later. Data express the mean ± SEM (n = 5). Bars labelled with different letters are significantly different from each other (P < 0.05).