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Satellite glia of the adult dorsal root ganglia harbor stem cells that yield glia under physiological conditions and neurons in response to injury

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Item Type:Article
Title:Satellite glia of the adult dorsal root ganglia harbor stem cells that yield glia under physiological conditions and neurons in response to injury
Creators Name:Maniglier, M., Vidal, M., Bachelin, Corinne, Deboux, C., Chazot, J., Garcia-Diaz, B. and Baron-Van Evercooren, A.
Abstract:The presence of putative stem/progenitor cells has been suggested in adult peripheral nervous system (PNS) tissue, including the dorsal root ganglion (DRG). To date, their identification and fate in pathophysiological conditions have not been addressed. Combining multiple in vitro and in vivo approaches, we identified the presence of stem cells in the adult DRG satellite glial population, and progenitors were present in the DRGs and sciatic nerve. Cell-specific transgenic mouse lines highlighted the proliferative potential of DRG stem cells and progenitors in vitro. DRG stem cells had gliogenic and neurogenic potentials, whereas progenitors were essentially gliogenic. Lineage tracing showed that, under physiological conditions, adult DRG stem cells maintained DRG homeostasis by supplying satellite glia. Under pathological conditions, adult DRG stem cells replaced DRG neurons lost to injury in addition of renewing the satellite glial pool. These novel findings open new avenues for development of therapeutic strategies targeting DRG stem cells for PNS disorders.
Keywords:Stem Cells, DRG, Satellite Glial Cells, Peripheral Nerve, Injury, CNS, Spinal Cord, Animals, Mice
Source:Stem Cell Reports
ISSN:2213-6711
Publisher:Cell Press / Elsevier
Volume:17
Number:11
Page Range:2467-2483
Date:8 November 2022
Official Publication:https://doi.org/10.1016/j.stemcr.2022.10.002
PubMed:View item in PubMed

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