Dynamic Control of Synaptic Adhesion and Organizing Molecules in Synaptic Plasticity

Synapses play a critical role in establishing and maintaining neural circuits, permitting targeted information transfer throughout the brain. A large portfolio of synaptic adhesion/organizing molecules (SAMs) exists in the mammalian brain involved in synapse development and maintenance. SAMs bind pr...

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Main Author: Gabby Rudenko
Format: Article
Language:English
Published: Wiley 2017-01-01
Series:Neural Plasticity
Online Access:http://dx.doi.org/10.1155/2017/6526151
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author Gabby Rudenko
author_facet Gabby Rudenko
author_sort Gabby Rudenko
collection DOAJ
description Synapses play a critical role in establishing and maintaining neural circuits, permitting targeted information transfer throughout the brain. A large portfolio of synaptic adhesion/organizing molecules (SAMs) exists in the mammalian brain involved in synapse development and maintenance. SAMs bind protein partners, forming trans-complexes spanning the synaptic cleft or cis-complexes attached to the same synaptic membrane. SAMs play key roles in cell adhesion and in organizing protein interaction networks; they can also provide mechanisms of recognition, generate scaffolds onto which partners can dock, and likely take part in signaling processes as well. SAMs are regulated through a portfolio of different mechanisms that affect their protein levels, precise localization, stability, and the availability of their partners at synapses. Interaction of SAMs with their partners can further be strengthened or weakened through alternative splicing, competing protein partners, ectodomain shedding, or astrocytically secreted factors. Given that numerous SAMs appear altered by synaptic activity, in vivo, these molecules may be used to dynamically scale up or scale down synaptic communication. Many SAMs, including neurexins, neuroligins, cadherins, and contactins, are now implicated in neuropsychiatric and neurodevelopmental diseases, such as autism spectrum disorder, schizophrenia, and bipolar disorder and studying their molecular mechanisms holds promise for developing novel therapeutics.
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spelling doaj-art-66dbe8a453784d7fbbfc2048f9d5e98e2025-08-20T02:23:44ZengWileyNeural Plasticity2090-59041687-54432017-01-01201710.1155/2017/65261516526151Dynamic Control of Synaptic Adhesion and Organizing Molecules in Synaptic PlasticityGabby Rudenko0Department of Pharmacology and Toxicology, Sealy Center for Structural Biology and Molecular Biophysics, University of Texas Medical Branch, 301 University Boulevard Rm. 5.114B, Galveston, TX 77555, USASynapses play a critical role in establishing and maintaining neural circuits, permitting targeted information transfer throughout the brain. A large portfolio of synaptic adhesion/organizing molecules (SAMs) exists in the mammalian brain involved in synapse development and maintenance. SAMs bind protein partners, forming trans-complexes spanning the synaptic cleft or cis-complexes attached to the same synaptic membrane. SAMs play key roles in cell adhesion and in organizing protein interaction networks; they can also provide mechanisms of recognition, generate scaffolds onto which partners can dock, and likely take part in signaling processes as well. SAMs are regulated through a portfolio of different mechanisms that affect their protein levels, precise localization, stability, and the availability of their partners at synapses. Interaction of SAMs with their partners can further be strengthened or weakened through alternative splicing, competing protein partners, ectodomain shedding, or astrocytically secreted factors. Given that numerous SAMs appear altered by synaptic activity, in vivo, these molecules may be used to dynamically scale up or scale down synaptic communication. Many SAMs, including neurexins, neuroligins, cadherins, and contactins, are now implicated in neuropsychiatric and neurodevelopmental diseases, such as autism spectrum disorder, schizophrenia, and bipolar disorder and studying their molecular mechanisms holds promise for developing novel therapeutics.http://dx.doi.org/10.1155/2017/6526151
spellingShingle Gabby Rudenko
Dynamic Control of Synaptic Adhesion and Organizing Molecules in Synaptic Plasticity
Neural Plasticity
title Dynamic Control of Synaptic Adhesion and Organizing Molecules in Synaptic Plasticity
title_full Dynamic Control of Synaptic Adhesion and Organizing Molecules in Synaptic Plasticity
title_fullStr Dynamic Control of Synaptic Adhesion and Organizing Molecules in Synaptic Plasticity
title_full_unstemmed Dynamic Control of Synaptic Adhesion and Organizing Molecules in Synaptic Plasticity
title_short Dynamic Control of Synaptic Adhesion and Organizing Molecules in Synaptic Plasticity
title_sort dynamic control of synaptic adhesion and organizing molecules in synaptic plasticity
url http://dx.doi.org/10.1155/2017/6526151
work_keys_str_mv AT gabbyrudenko dynamiccontrolofsynapticadhesionandorganizingmoleculesinsynapticplasticity