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Dendritic Spine and Synapse Morphological Alterations Induced by a Neural Cell Adhesion Molecule Mimetic

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Structure and Function of the Neural Cell Adhesion Molecule NCAM

Part of the book series: Advances in Experimental Medicine and Biology ((AEMB,volume 663))

Abstract

The neural cell adhesion molecule (NCAM) is a glycoprotein expressed on the surface of neurons and glial cells. It plays a key role in morphogenesis of the nervous system, regeneration of damaged neural tissue and synaptic plasticity. The extracellular domain of NCAM engages in homophilic interactions (NCAM binding to NCAM) and in heterophilic interactions between NCAM and other proteins such as the fibroblast growth factor (FGF) receptor. It promotes synaptogenesis and activity-dependent remodelling of synapses but less is known of its influence on synaptic and dendritic morphology. Recently, quantitative electron microscopy and 3-dimensional reconstruction (3-D) of ultrathin serial sections has been used to examine the morphology of synapses and dendritic spines in the hippocampus of rats treated with a neural cell adhesion molecule-derived fibroblast growth factor receptor agonist, FGL-peptide (an NCAM mimetic). These data show clearly that the FGL peptide has marked influences on both spine and synaptic form.

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Acknowledgments

Supported by EU FPVI Promemoria Contract No. 512012 and to V.I.P. (RFBR grant 05-04-49635-а) and I.V.K. (grant MK-424.2007.4).

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Authors and Affiliations

  1. Department of Life Sciences, Faculty of Sciences, The Open University, Walton Hall, Milton Keynes, MK7 6AA, UK

    Michael Stewart

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  1. Michael Stewart
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  2. Victor Popov
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  3. Nikolai Medvedev
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  4. Paul Gabbott
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  5. Nicola Corbett
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  6. Igor Kraev
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  7. Heather Davies
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Correspondence to Michael Stewart .

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Editors and Affiliations

  1. Panum Institute, Dept. Regenerative Medicine, University of Copenhagen, Blegdamsvej 3C, Koebenhavn N, 2200, Denmark

    Vladimir Berezin

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Stewart, M. et al. (2010). Dendritic Spine and Synapse Morphological Alterations Induced by a Neural Cell Adhesion Molecule Mimetic. In: Berezin, V. (eds) Structure and Function of the Neural Cell Adhesion Molecule NCAM. Advances in Experimental Medicine and Biology, vol 663. Springer, New York, NY. https://doi.org/10.1007/978-1-4419-1170-4_23

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