Local Translation Across Neural Development: A Focus on Radial Glial Cells, Axons, and Synaptogenesis

In the past two decades, significant progress has been made in our understanding of mRNA localization and translation at distal sites in axons and dendrites. The existing literature shows that local translation is regulated in a temporally and spatially restricted manner and is critical throughout e...

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Main Authors: Manasi Agrawal, Kristy Welshhans
Format: Article
Language:English
Published: Frontiers Media S.A. 2021-08-01
Series:Frontiers in Molecular Neuroscience
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fnmol.2021.717170/full
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author Manasi Agrawal
Kristy Welshhans
author_facet Manasi Agrawal
Kristy Welshhans
author_sort Manasi Agrawal
collection DOAJ
description In the past two decades, significant progress has been made in our understanding of mRNA localization and translation at distal sites in axons and dendrites. The existing literature shows that local translation is regulated in a temporally and spatially restricted manner and is critical throughout embryonic and post-embryonic life. Here, recent key findings about mRNA localization and local translation across the various stages of neural development, including neurogenesis, axon development, and synaptogenesis, are reviewed. In the early stages of development, mRNAs are localized and locally translated in the endfeet of radial glial cells, but much is still unexplored about their functional significance. Recent in vitro and in vivo studies have provided new information about the specific mechanisms regulating local translation during axon development, including growth cone guidance and axon branching. Later in development, localization and translation of mRNAs help mediate the major structural and functional changes that occur in the axon during synaptogenesis. Clinically, changes in local translation across all stages of neural development have important implications for understanding the etiology of several neurological disorders. Herein, local translation and mechanisms regulating this process across developmental stages are compared and discussed in the context of function and dysfunction.
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spelling doaj.art-c021838008914684b4fabffac230cc852022-12-21T18:51:54ZengFrontiers Media S.A.Frontiers in Molecular Neuroscience1662-50992021-08-011410.3389/fnmol.2021.717170717170Local Translation Across Neural Development: A Focus on Radial Glial Cells, Axons, and SynaptogenesisManasi Agrawal0Kristy Welshhans1School of Biomedical Sciences, Kent State University, Kent, OH, United StatesDepartment of Biological Sciences, University of South Carolina, Columbia, SC, United StatesIn the past two decades, significant progress has been made in our understanding of mRNA localization and translation at distal sites in axons and dendrites. The existing literature shows that local translation is regulated in a temporally and spatially restricted manner and is critical throughout embryonic and post-embryonic life. Here, recent key findings about mRNA localization and local translation across the various stages of neural development, including neurogenesis, axon development, and synaptogenesis, are reviewed. In the early stages of development, mRNAs are localized and locally translated in the endfeet of radial glial cells, but much is still unexplored about their functional significance. Recent in vitro and in vivo studies have provided new information about the specific mechanisms regulating local translation during axon development, including growth cone guidance and axon branching. Later in development, localization and translation of mRNAs help mediate the major structural and functional changes that occur in the axon during synaptogenesis. Clinically, changes in local translation across all stages of neural development have important implications for understanding the etiology of several neurological disorders. Herein, local translation and mechanisms regulating this process across developmental stages are compared and discussed in the context of function and dysfunction.https://www.frontiersin.org/articles/10.3389/fnmol.2021.717170/fulllocal translationneurodevelopmentneurodevelopmental disordersaxon growth and guidancesynaptogenesisradial glial cells
spellingShingle Manasi Agrawal
Kristy Welshhans
Local Translation Across Neural Development: A Focus on Radial Glial Cells, Axons, and Synaptogenesis
Frontiers in Molecular Neuroscience
local translation
neurodevelopment
neurodevelopmental disorders
axon growth and guidance
synaptogenesis
radial glial cells
title Local Translation Across Neural Development: A Focus on Radial Glial Cells, Axons, and Synaptogenesis
title_full Local Translation Across Neural Development: A Focus on Radial Glial Cells, Axons, and Synaptogenesis
title_fullStr Local Translation Across Neural Development: A Focus on Radial Glial Cells, Axons, and Synaptogenesis
title_full_unstemmed Local Translation Across Neural Development: A Focus on Radial Glial Cells, Axons, and Synaptogenesis
title_short Local Translation Across Neural Development: A Focus on Radial Glial Cells, Axons, and Synaptogenesis
title_sort local translation across neural development a focus on radial glial cells axons and synaptogenesis
topic local translation
neurodevelopment
neurodevelopmental disorders
axon growth and guidance
synaptogenesis
radial glial cells
url https://www.frontiersin.org/articles/10.3389/fnmol.2021.717170/full
work_keys_str_mv AT manasiagrawal localtranslationacrossneuraldevelopmentafocusonradialglialcellsaxonsandsynaptogenesis
AT kristywelshhans localtranslationacrossneuraldevelopmentafocusonradialglialcellsaxonsandsynaptogenesis