Dynamic Diversity of Glial Response Among Species in Spinal Cord Injury

The glial scar that forms after traumatic spinal cord injury (SCI) is mostly composed of microglia, NG2 glia, and astrocytes and plays dual roles in pathophysiological processes induced by the injury. On one hand, the glial scar acts as a chemical and physical obstacle to spontaneous axonal regenera...

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Autores principales: Jean-Christophe Perez, Yannick N. Gerber, Florence E. Perrin
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Publicado: Frontiers Media S.A. 2021
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Acceso en línea:https://doaj.org/article/9a1ecb0feee54b149827c9bf079a23c5
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spelling oai:doaj.org-article:9a1ecb0feee54b149827c9bf079a23c52021-12-01T08:05:21ZDynamic Diversity of Glial Response Among Species in Spinal Cord Injury1663-436510.3389/fnagi.2021.769548https://doaj.org/article/9a1ecb0feee54b149827c9bf079a23c52021-11-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/fnagi.2021.769548/fullhttps://doaj.org/toc/1663-4365The glial scar that forms after traumatic spinal cord injury (SCI) is mostly composed of microglia, NG2 glia, and astrocytes and plays dual roles in pathophysiological processes induced by the injury. On one hand, the glial scar acts as a chemical and physical obstacle to spontaneous axonal regeneration, thus preventing functional recovery, and, on the other hand, it partly limits lesion extension. The complex activation pattern of glial cells is associated with cellular and molecular crosstalk and interactions with immune cells. Interestingly, response to SCI is diverse among species: from amphibians and fishes that display rather limited (if any) glial scarring to mammals that exhibit a well-identifiable scar. Additionally, kinetics of glial activation varies among species. In rodents, microglia become activated before astrocytes, and both glial cell populations undergo activation processes reflected amongst others by proliferation and migration toward the injury site. In primates, glial cell activation is delayed as compared to rodents. Here, we compare the spatial and temporal diversity of the glial response, following SCI amongst species. A better understanding of mechanisms underlying glial activation and scar formation is a prerequisite to develop timely glial cell-specific therapeutic strategies that aim to increase functional recovery.Jean-Christophe PerezYannick N. GerberFlorence E. PerrinFlorence E. PerrinFrontiers Media S.A.articlespinal cord injury (SCI)glial cellsimmune cellsglial scarglial bridgerodentsNeurosciences. Biological psychiatry. NeuropsychiatryRC321-571ENFrontiers in Aging Neuroscience, Vol 13 (2021)
institution DOAJ
collection DOAJ
language EN
topic spinal cord injury (SCI)
glial cells
immune cells
glial scar
glial bridge
rodents
Neurosciences. Biological psychiatry. Neuropsychiatry
RC321-571
spellingShingle spinal cord injury (SCI)
glial cells
immune cells
glial scar
glial bridge
rodents
Neurosciences. Biological psychiatry. Neuropsychiatry
RC321-571
Jean-Christophe Perez
Yannick N. Gerber
Florence E. Perrin
Florence E. Perrin
Dynamic Diversity of Glial Response Among Species in Spinal Cord Injury
description The glial scar that forms after traumatic spinal cord injury (SCI) is mostly composed of microglia, NG2 glia, and astrocytes and plays dual roles in pathophysiological processes induced by the injury. On one hand, the glial scar acts as a chemical and physical obstacle to spontaneous axonal regeneration, thus preventing functional recovery, and, on the other hand, it partly limits lesion extension. The complex activation pattern of glial cells is associated with cellular and molecular crosstalk and interactions with immune cells. Interestingly, response to SCI is diverse among species: from amphibians and fishes that display rather limited (if any) glial scarring to mammals that exhibit a well-identifiable scar. Additionally, kinetics of glial activation varies among species. In rodents, microglia become activated before astrocytes, and both glial cell populations undergo activation processes reflected amongst others by proliferation and migration toward the injury site. In primates, glial cell activation is delayed as compared to rodents. Here, we compare the spatial and temporal diversity of the glial response, following SCI amongst species. A better understanding of mechanisms underlying glial activation and scar formation is a prerequisite to develop timely glial cell-specific therapeutic strategies that aim to increase functional recovery.
format article
author Jean-Christophe Perez
Yannick N. Gerber
Florence E. Perrin
Florence E. Perrin
author_facet Jean-Christophe Perez
Yannick N. Gerber
Florence E. Perrin
Florence E. Perrin
author_sort Jean-Christophe Perez
title Dynamic Diversity of Glial Response Among Species in Spinal Cord Injury
title_short Dynamic Diversity of Glial Response Among Species in Spinal Cord Injury
title_full Dynamic Diversity of Glial Response Among Species in Spinal Cord Injury
title_fullStr Dynamic Diversity of Glial Response Among Species in Spinal Cord Injury
title_full_unstemmed Dynamic Diversity of Glial Response Among Species in Spinal Cord Injury
title_sort dynamic diversity of glial response among species in spinal cord injury
publisher Frontiers Media S.A.
publishDate 2021
url https://doaj.org/article/9a1ecb0feee54b149827c9bf079a23c5
work_keys_str_mv AT jeanchristopheperez dynamicdiversityofglialresponseamongspeciesinspinalcordinjury
AT yannickngerber dynamicdiversityofglialresponseamongspeciesinspinalcordinjury
AT florenceeperrin dynamicdiversityofglialresponseamongspeciesinspinalcordinjury
AT florenceeperrin dynamicdiversityofglialresponseamongspeciesinspinalcordinjury
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