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The Diversity and Disparity of the Glial Scar

Overview
Journal Nat Neurosci
Date 2017 Dec 23
PMID 29269757
Citations 190
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Abstract

Injury or disease to the CNS results in multifaceted cellular and molecular responses. One such response, the glial scar, is a structural formation of reactive glia around an area of severe tissue damage. While traditionally viewed as a barrier to axon regeneration, beneficial functions of the glial scar have also been recently identified. In this Perspective, we discuss the divergent roles of the glial scar during CNS regeneration and explore the possibility that these disparities are due to functional heterogeneity within the cells of the glial scar-specifically, astrocytes, NG2 glia and microglia.

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References
1.
Kawabori M, Yenari M . The role of the microglia in acute CNS injury. Metab Brain Dis. 2014; 30(2):381-92. PMC: 4180000. DOI: 10.1007/s11011-014-9531-6. View

2.
Kucharova K, Chang Y, Boor A, Yong V, Stallcup W . Reduced inflammation accompanies diminished myelin damage and repair in the NG2 null mouse spinal cord. J Neuroinflammation. 2011; 8:158. PMC: 3229456. DOI: 10.1186/1742-2094-8-158. View

3.
Wanner I, Anderson M, Song B, Levine J, Fernandez A, Gray-Thompson Z . Glial scar borders are formed by newly proliferated, elongated astrocytes that interact to corral inflammatory and fibrotic cells via STAT3-dependent mechanisms after spinal cord injury. J Neurosci. 2013; 33(31):12870-86. PMC: 3728693. DOI: 10.1523/JNEUROSCI.2121-13.2013. View

4.
Buffo A, Rite I, Tripathi P, Lepier A, Colak D, Horn A . Origin and progeny of reactive gliosis: A source of multipotent cells in the injured brain. Proc Natl Acad Sci U S A. 2008; 105(9):3581-6. PMC: 2265175. DOI: 10.1073/pnas.0709002105. View

5.
Hayakawa K, Esposito E, Wang X, Terasaki Y, Liu Y, Xing C . Transfer of mitochondria from astrocytes to neurons after stroke. Nature. 2016; 535(7613):551-5. PMC: 4968589. DOI: 10.1038/nature18928. View