Epithelial-to-mesenchymal and mesenchymal-to-epithelial transitions in the colon

Figure 3 Regenerative phase of ulcerative colitis. The arrowed α-SMA positive pericryptic cell shows cytokeratin (CK) expression. The presence of the mesenchymal-to-epithelial transition is possible. (α-SMA: Red; CK: Green; nuclear counter-staining: Blue; fluorescence immunohistochemistry, taken by virtual microscope). DAPI: 4′,6′-diamidino-2-phenylindole hydrochloride.