Figure 1.
Expression of MAS1 in breast cancer. MAS1 expression was examined by immunohistochemistry in (a) benign mammary ducts (inset; prominent MAS1 expression was observed in the myoepithelial cells), (b) ductal carcinoma in situ (right side) with invasive ductal carcinoma (IDC) component (left side), (c) scirrhous type IDC, (d) lymph node metastasis, (e) triple-negative breast cancer; solid-tubular type, (f) cardiac muscle as a positive control, (g) colonic mucosa as a negative control and (h) technical negative control by no MAS1 antibody treatment. The scale bars, 50 μm.