Figure 4.

Expression of the Cx43 protein in pericarcinoma and rectal cancer tissues (× 400). A. Positive cytoplasmic expression of Cx43 in pericarcinoma rectal tissues; B. Negative expression in pericarcinoma rectal tissues; C. Low expression in the cytoplasm in poorly differentiated rectal adenocarcinoma tissues; D and E. Negative expression in poorly and moderately differentiated rectal adenocarcinoma tissues, respectively; F. Low expression in the cytoplasm in poorly differentiated rectal mucinous adenocarcinoma tissues; G. Positive expression in the cytoplasm in moderately differentiated rectal adenocarcinoma tissues; H and I. Negative expression in moderately differentiated rectal adenocarcinoma and signet-ring cell carcinoma tissues.