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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Frontiers Media S.A.
2021
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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) |
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spinal cord injury (SCI) glial cells immune cells glial scar glial bridge rodents Neurosciences. Biological psychiatry. Neuropsychiatry RC321-571 |
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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 |
_version_ |
1718405428668268544 |