The Emerging Role of Mechanics in Synapse Formation and Plasticity

The regulation of synaptic strength forms the basis of learning and memory, and is a key factor in understanding neuropathological processes that lead to cognitive decline and dementia. While the mechanical aspects of neuronal development, particularly during axon growth and guidance, have been exte...

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Main Author: Devrim Kilinc
Format: Article
Language:English
Published: Frontiers Media S.A. 2018-12-01
Series:Frontiers in Cellular Neuroscience
Subjects:
Online Access:https://www.frontiersin.org/article/10.3389/fncel.2018.00483/full
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author Devrim Kilinc
author_facet Devrim Kilinc
author_sort Devrim Kilinc
collection DOAJ
description The regulation of synaptic strength forms the basis of learning and memory, and is a key factor in understanding neuropathological processes that lead to cognitive decline and dementia. While the mechanical aspects of neuronal development, particularly during axon growth and guidance, have been extensively studied, relatively little is known about the mechanical aspects of synapse formation and plasticity. It is established that a filamentous actin network with complex spatiotemporal behavior controls the dendritic spine shape and size, which is thought to be crucial for activity-dependent synapse plasticity. Accordingly, a number of actin binding proteins have been identified as regulators of synapse plasticity. On the other hand, a number of cell adhesion molecules (CAMs) are found in synapses, some of which form transsynaptic bonds to align the presynaptic active zone (PAZ) with the postsynaptic density (PSD). Considering that these CAMs are key components of cellular mechanotransduction, two critical questions emerge: (i) are synapses mechanically regulated? and (ii) does disrupting the transsynaptic force balance lead to (or exacerbate) synaptic failure? In this mini review article, I will highlight the mechanical aspects of synaptic structures—focusing mainly on cytoskeletal dynamics and CAMs—and discuss potential mechanoregulation of synapses and its relevance to neurodegenerative diseases.
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spelling doaj.art-0454518829114205a084e6ae3dd6a8942022-12-22T03:43:16ZengFrontiers Media S.A.Frontiers in Cellular Neuroscience1662-51022018-12-011210.3389/fncel.2018.00483422640The Emerging Role of Mechanics in Synapse Formation and PlasticityDevrim KilincThe regulation of synaptic strength forms the basis of learning and memory, and is a key factor in understanding neuropathological processes that lead to cognitive decline and dementia. While the mechanical aspects of neuronal development, particularly during axon growth and guidance, have been extensively studied, relatively little is known about the mechanical aspects of synapse formation and plasticity. It is established that a filamentous actin network with complex spatiotemporal behavior controls the dendritic spine shape and size, which is thought to be crucial for activity-dependent synapse plasticity. Accordingly, a number of actin binding proteins have been identified as regulators of synapse plasticity. On the other hand, a number of cell adhesion molecules (CAMs) are found in synapses, some of which form transsynaptic bonds to align the presynaptic active zone (PAZ) with the postsynaptic density (PSD). Considering that these CAMs are key components of cellular mechanotransduction, two critical questions emerge: (i) are synapses mechanically regulated? and (ii) does disrupting the transsynaptic force balance lead to (or exacerbate) synaptic failure? In this mini review article, I will highlight the mechanical aspects of synaptic structures—focusing mainly on cytoskeletal dynamics and CAMs—and discuss potential mechanoregulation of synapses and its relevance to neurodegenerative diseases.https://www.frontiersin.org/article/10.3389/fncel.2018.00483/fulldendritic spinecytoskeletoncell adhesion moleculesmotor proteinsmechanotransductionsynaptic scaffold proteins
spellingShingle Devrim Kilinc
The Emerging Role of Mechanics in Synapse Formation and Plasticity
Frontiers in Cellular Neuroscience
dendritic spine
cytoskeleton
cell adhesion molecules
motor proteins
mechanotransduction
synaptic scaffold proteins
title The Emerging Role of Mechanics in Synapse Formation and Plasticity
title_full The Emerging Role of Mechanics in Synapse Formation and Plasticity
title_fullStr The Emerging Role of Mechanics in Synapse Formation and Plasticity
title_full_unstemmed The Emerging Role of Mechanics in Synapse Formation and Plasticity
title_short The Emerging Role of Mechanics in Synapse Formation and Plasticity
title_sort emerging role of mechanics in synapse formation and plasticity
topic dendritic spine
cytoskeleton
cell adhesion molecules
motor proteins
mechanotransduction
synaptic scaffold proteins
url https://www.frontiersin.org/article/10.3389/fncel.2018.00483/full
work_keys_str_mv AT devrimkilinc theemergingroleofmechanicsinsynapseformationandplasticity
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