PUBLICATION

Zebrafish Müller glia-derived progenitors are multipotent, exhibit proliferative biases and regenerate excess neurons

Authors
Powell, C., Cornblath, E., Elsaeidi, F., Wan, J., Goldman, D.
ID
ZDB-PUB-160421-11
Date
2016
Source
Scientific Reports   6: 24851 (Journal)
Registered Authors
Elsaeidi, Fairouz, Goldman, Dan
Keywords
Neuroscience, Regeneration and repair in the nervous system
MeSH Terms
  • Zebrafish*
  • Regeneration
  • Multipotent Stem Cells/cytology*
  • Multipotent Stem Cells/physiology*
  • Cell Proliferation
  • Ependymoglial Cells/cytology*
  • Cell Differentiation*
  • Neurons/cytology*
  • Cell Death
  • Animals
  • Retina/cytology
  • Retina/metabolism
  • Cell Movement
(all 13)
PubMed
27094545 Full text @ Sci. Rep.
Abstract
Unlike mammals, zebrafish can regenerate a damaged retina. Key to this regenerative response are Müller glia (MG) that respond to injury by reprogramming and adopting retinal stem cell properties. These reprogrammed MG divide to produce a proliferating population of retinal progenitors that migrate to areas of retinal damage and regenerate lost neurons. Previous studies have suggested that MG-derived progenitors may be biased to produce that are lost with injury. Here we investigated MG multipotency using injury paradigms that target different retinal nuclear layers for cell ablation. Our data indicate that regardless of which nuclear layer was damaged, MG respond by generating multipotent progenitors that migrate to all nuclear layers and differentiate into layer-specific cell types, suggesting that MG-derived progenitors in the injured retina are intrinsically multipotent. However, our analysis of progenitor proliferation reveals a proliferative advantage in nuclear layers where neurons were ablated. This suggests that feedback inhibition from surviving neurons may skew neuronal regeneration towards ablated cell types.
Genes / Markers
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Allele Construct Type Affected Genomic Region
mi4TgTransgenic Insertion
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    GFPEFGGFP
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    Citation
    Powell, C., Cornblath, E., Elsaeidi, F., Wan, J., Goldman, D. (2016) Zebrafish Müller glia-derived progenitors are multipotent, exhibit proliferative biases and regenerate excess neurons. Scientific Reports. 6:24851.