Adenomatous polyposis coli proteins and cell adhesion - PubMed (original) (raw)
Review
Adenomatous polyposis coli proteins and cell adhesion
Mariann Bienz et al. Curr Opin Cell Biol. 2004 Oct.
Abstract
Adenomatous polyposis coli (APC) is an important tumour suppressor in the mammalian intestinal epithelium. It binds to beta-catenin and its role as a tumour suppressor depends predominantly on its ability to downregulate soluble beta-catenin, a key effector of the Wnt signalling pathway. However, epithelial cells have a distinct subcellular pool of beta-catenin, or Drosophila Armadillo, which functions as a structural component of adherens junctions. Notably, APC proteins can be associated with these adherens junctions, and recent evidence points to a role for APC in cellular adhesion. Thus, APC--like beta-catenin/Armadillo--may have a dual role in Wnt signal transduction and in cellular adhesion, which could be relevant to its activity as a tumour suppressor.
Copyright 2004 Elsevier Ltd.
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