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Zippers Make Signals: NCAM-mediated Molecular Interactions and Signal Transduction

Overview
Journal Neurochem Res
Specialties Chemistry
Neurology
Date 2005 Jan 25
PMID 15662836
Citations 60
Authors
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Abstract

The neural cell adhesion molecule, NCAM, is involved in multiple cis- and trans-homophilic interactions (NCAM binding to NCAM) thereby facilitating cell-cell adhesion through the formation of zipper-like NCAM-complexes. NCAM is also involved in heterophilic interactions with a number of proteins and extracellular matrix molecules. Some of these heterophilic interactions are mutually exclusive, and some interfere with or are dependent on homophilic NCAM interactions. Furthermore, both homo- and heterophilic interactions are modulated by posttranslational modifications of NCAM. Heterophilic NCAM-interactions initiate several intracellular signal transduction pathways ultimately leading to biological responses involving cellular differentiation, proliferation, migration and survival. Both homo- and heterophilic NCAM-interactions can be mimicked by synthetic peptides, which can induce NCAM-like signalling, and in vitro and in vivo studies suggest that such NCAM mimetics may be used for the treatment of neurodegenerative disorders.

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