Figure 4
From: Urokinase Plasminogen Activator Is Localized in Stromal Cells in Ductal Breast Cancer
Immunoperoxidase staining of adjacent sections of human ductal breast cancer tissue for uPA and the endothelial cell marker CD31. Two adjacent sections, prepared as described in Figure 1, were incubated either with polyclonal antibodies against uPA (pAb2, 5 μg/ml) Panel a, or with a monoclonal antibody against CD31 for the identification of endothelial cells (Panel b). Corresponding capillary structures show immunostaining for both uPA and CD31 (arrows). Bar: 30 μm.
