Decreased expression of type II tumor suppressor gene RARRES3 in tissues of hepatocellular carcinoma and cholangiocarcinoma

Figure 1 Expression of RARRES3 in paraffin-embedded sections of CC tissues. Tissue sections from tumors with moderate (A-C), well (D-F) and poor (G-I) differentiation were assayed for RARRES3 expression by immunohistochemistry using RARRES3 antiserum (A-C, D and G) or preimmune serum (E, H). F and I: hematoxylin and eosin staining. Arrows indicate granular patterns of RARRES3 staining. AN: adjacent normal tissues; T: tumor tissues. Original magnification: 100×.

Figure 2 Expression of RARRES3 in paraffin-embedded HCC tissues. HCC (A-C) and adjacent normal tissues (D-F) were stained for RARRES3 protein using RARRES3 antiserum (A, D) or preimmune serum (B, E). C and F: hematoxylin and eosin staining. Original magnification: 100×.