Fig. 4.

Effect on the number of CD11b⁺ CD16⁺ DCs and SWC3a⁺ SLA-II-DR⁺ DCs in the intestinal villi and lamina propria by SHXB- and STC3-infected piglets.

(A) Images 1 and 3 show the morphology the CD11b⁺CD16⁺ DCs in the intestinal villi and lamina propria. Images 2 and 4 show the morphology of SWC3a⁺SLA-II-DR⁺ DCs in intestinal villi and the lamina propria. Scale bars represent 10 nm. Images 5–8 and 9–12 show the number of changes in CD11b⁺ CD16⁺ DCs and SWC3a⁺ SLA-II-DR⁺ DCs in the intestinal villi of control piglets, SHXB- and STC3-infected piglets. Images are shown at 200× magnification. Scale bars represent 100 nm. Bar graphs show the number of CD11b⁺CD16⁺ DCs (B) and SWC3a⁺ SLA-II-DR⁺ DCs (C) of the intestinal villus and lamina propria in piglets after 15 min, 3 h and 48 h of infection with SHXB and STC3. Data express the mean ± SEM (n = 5). Bars labelled with different letters are significantly different from each other (P < 0.05).