Examples and quantification of survivin and mucin expression in healthy and CRC cells. (A) Immunohistochemical staining for MUC2, MUC5 and survivin in healthy colorectal tissues and adjacent CRC tissues. Representative case of MUC2, MUC5 and survivin expression in normal adjacent tissues and CRC tissues are shown (magnification, ×200). (B) Expression of MUC2, MUC5 and survivin in healthy and cancerous colorectal tissues was examined by western blot analysis. β-actin expression was used as a control. MUC, mucin; CRC, colorectal cancer; H, healthy tissue; T, tumor tissue.