Figure 4.

Increased number of dendritic cells and cells of the monocyte/macrophage lineage in the caeca of Clostridium difficile-infected (CDI) mice. Bar graphs showing the number of dendritic cells (a), and cells of the monocyte/macrophage lineage (b), in the caeca and colons of CDI mice in comparison to untreated mice. The bars represent the mean ± SEM of nine pairs of caeca and colons. A P-value ≤ 0.05 indicates a significant difference between the untreated and CDI samples and is marked with a ⋆. (c) Histograms showing the higher fraction of monocyte/macrophage lineage cells expressing low levels of MHC II in the caeca and colons of CDI mice.