Figure 4.

Galectin expression in activated tumor endothelial cells. Immunohistochemical staining of galectin expression in human colon carcinoma tissue. Staining was performed for CD31/34 (A), galectin-1 (B), galectin-3 (C), galectin-8 (D), and galectin-9 (E). As negative control, the primary antibody was omitted (F). Bar = 50 um. Each inset shows a vessel in more detail with asterisks marking the luminal site of the vessel. The black arrows point toward positive stained endothelial cells. In F, the arrows point toward nuclei of unstained endothelial cells. Bar = 10 μm.