The survival effect of E-cadherin and catenins in colorectal carcinomas

Aim The E-cadherin/catenin complex plays an important role in epithelial tissue architecture. Decreased expression of cell adhesion molecules (E-cadherin, alpha-, beta- and gamma-catenin) have been reported to correlate with invasive behaviour. The aim of this study was to investigate the relation between the expression of adhesion molecules and clinicopathological characteristics and survival in colorectal carcinoma. Method The expression of adhesion molecules were studied by immunohistochemistry in 138 colorectal carcinomas. Results The mean age of the patients was 65 years (range: 21-89 years). In primary carcinomas, a reduction in membranous expression of E-cadherin, alpha-catenin, beta-catenin, gamma-catenin was demonstrated (70%, 68%, 73%, 77%, respectively). Nuclear expression of beta-catenin was found in eight (5%) patients. Decreased membranous beta-and gamma-catenin expression significantly correlated with tumour differentiation (P = 0.013, P = 0.03, respectively). There was a significant association between advanced stage of the tumour and decreased membranous alpha-catenin expression (P = 0.012). Decreased E-cadherin and beta-catenin membranous expression correlated with short survival following curative resection of the primary tumour (P = 0.04, P = 0.03, respectively). Conclusion The decreased membranous expression of E-cadherin and beta-catenin and increased cytoplasmic expression of beta-catenin might be used as a prognostic marker to monitor patients with colorectal cancer.