title: The Prognostic Impact of Protein Expression of E-Cadherin-Catenin Complexes Differs between Rectal and Colon Carcinoma.
abstract: The E-cadherin-catenin complex provides cell-cell adhesion. In order for a carcinoma to metastasize, cancer cells must let go of their hold of neighboring cells in the primary tumor. The presence of components of the E-cadherin-catenin complex in 246 rectal adenocarcinomas was examined by immunohistochemistry and compared to their presence in 219 colon carcinomas. The expression data were correlated to clinical information from the patients' records. There were statistically significant differences in protein expression between the rectal and the colon carcinomas regarding membranous beta-catenin, gamma-catenin, p120-catenin, and E-cadherin, as well as nuclear beta-catenin. In the rectal carcinomas, there was a significant inverse association between the expression of p120-catenin in cell membranes of the primary tumors and the occurrence of local recurrence, while membranous protein expression of beta-catenin was inversely related to distant metastases.
authors.affiliation: Faculty Division Akershus University Hospital, University of Oslo, 1474 Nordbyhagen, Norway.
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authors.forename: Johan
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authors.lastname: Bakka
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authors.initials: IR
authors.lastname: Bukholm
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