During vertebrate neural retina development, the relationship between mitotic activity in progenitor cells and the acquisition of a mature cell phenotype remains an area of controversy. The Müller glial cell has long been recognized as one of the last cell types of the retina to mature, which occurs
Potential of Müller glia to become neurogenic retinal progenitor cells
✍ Scribed by Andy J. Fischer; Thomas A. Reh
- Publisher
- John Wiley and Sons
- Year
- 2003
- Tongue
- English
- Weight
- 578 KB
- Volume
- 43
- Category
- Article
- ISSN
- 0894-1491
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✦ Synopsis
Abstract
The possibility of neural regeneration has gained credence with the identification of neural stem cells seeded within different regions of the adult central nervous system (CNS). Recently, this possibility has received an additional boost from reports that glia, the support cells of the CNS, might provide a source of neural regeneration. We review some of our findings that Müller glia in the chicken retina are a source of proliferating progenitors that can generate neurons. These Müller cells are fully differentiated glial cells that serve functions ascribed to this cell type. In response to damage or exogenous growth factors, Müller glia dedifferentiate, proliferate, express combinations of transcription factors normally expressed by embryonic retinal progenitors, and produce new neurons and glia. In light of these data, the potential of Müller glia as a source of neural regeneration in the retina of nonavian species, namely humans, seems an avenue of investigation that warrants serious consideration. GLIA 43:70–76, 2003. © 2003 Wiley‐Liss, Inc.
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