Expression of SNC73 mRNA in the epithelial cells of colon mucosa. A, C: In situ hybridization of SNC73 mRNA in the normal colon mucosa and colon carcinoma by anti-sense SNC73 RNA probe, respectively; B, D: In situ hybridization of SNC73 mRNA in the normal colon mucosa and colon carcinoma by SNC73 sense RNA probe, respectively, as negative control; E: Expression of cytokeratin (Rhodamine-labeled) in epithelial cells by immunohistochemistry; F: Expression of IgHa1 (FITC-labeled) was expressed in epithelial cells by immunohistochemistry; G: The merger of (E) and (F) × 200.