Cited by 123Retinal Development and DisordersNeurogenesis and neuroplasticity mechanismsRetinal Diseases and Treatments

Stat3 defines three populations of Müller glia and is required for initiating maximal müller glia proliferation in the regenerating zebrafish retina

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Nelson, Craig M., Gorsuch, Ryne A., Bailey, Travis J., Ackerman, Kristin M., Kassen, Sean C., Hyde, David R.·2012·Journal of Comparative Neurology

Abstract

We analyzed the role of Stat3, Ascl1a, and Lin28a in Müller glia reentry into the cell cycle following damage to the zebrafish retina. Immunohistochemical analysis was employed to determine the temporal and spatial expression of Stat3 and Ascl1a proteins following rod and cone photoreceptor cell apoptosis. Stat3 expression was observed in all Müller glia, whereas Ascl1a expression was restricted to only the mitotic Müller glia. Knockdown of Stat3 protein expression did not affect photoreceptor apoptosis, but significantly reduced, without abolishing, the number of proliferating Ascl1a‐positive Müller glia. Knockdown of Ascl1a protein also did not change the extent of photoreceptor apoptosis, but did yield significantly fewer Müller glia that reentered the cell cycle relative to the stat3 morphant and significantly decreased the number and intensity of Stat3‐expressing Müller glia. Finally, introduction of lin28a morpholinos resulted in decreased Müller glia expression of Stat3 and Ascl1a, significantly reducing the number of proliferating Müller glia. Thus, there are three populations of Müller glia in the light‐damaged zebrafish retina: 1) Stat3‐expressing Ascl1a‐nonexpressing nonproliferating (quiescent) Müller glia; 2) Stat3‐dependent Ascl1a‐dependent proliferating Müller glia; and 3) Stat3‐independent Ascl1a‐dependent proliferating Müller glia. Whereas Ascl1a and Lin28a are required for Müller glia proliferation, Stat3 is necessary for the maximal number of Müller glia to proliferate during regeneration of the damaged zebrafish retina. J. Comp. Neurol. 520:4294–4311, 2012. © 2012 Wiley Periodicals, Inc.

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  • Previous studies indicate that Mapk/Erk, Gsk3β/β-catenin and Jak/Stat3 signaling regulate Müller glia-dependent progenitor formation in the injured retina.

    “Previous studies (Kassen et al., 2009; Meyers et al., 2012; Nelson et al., 2012; Ramachandran et al., 2011; Wan, 2012), along with the accompanying paper by Zhao et al., indicate that Mapk/Erk, Gsk3 β/β-catenin and Jak/Stat3 signaling regulate MG-dependent progenitor formation in the injured retina.”

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  1. Westerfield M The Zebrafish Book; A Guide for the Laboratory Use of Zebrafish (Brachydanio rerio) 1993 University of Oregon Press

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Authors
Nelson, C. M., Gorsuch, R. A., Bailey, T. J., Ackerman, K. M., Kassen, S. C., & Hyde, D. R.
Affiliations
University of Notre Dame (US)
Corresponding author
Hyde, David R.
Venue
Journal of Comparative Neurology
Publisher
Wiley
Published
2012-10-20
Volume
520
Issue
18
Pages
4294-4311
ISSN
  • 0021-9967 (ISSN-L)
  • 1096-9861
OpenAlex
W2104008103
Cited by
123
References
46
Citations by year
2026: 11 · 2025: 3 · 2024: 9 · 2023: 11 · 2022: 10 · 2021: 11 · 2020: 9 · 2019: 7 · 2018: 7 · 2017: 9 · 2016: 7 · 2015: 8 · 2014: 10 · 2013: 11
FWCI
3.73
Type
journal article
Language
en
Open access
Locations
  • The Journal of Comparative Neurology (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • U.S. Public Health Service (R01-RY018417)
  • National Eye Institute (R01EY018417)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Retinal Development and Disorders
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
  • Health Sciences › Medicine › Ophthalmology › Retinal Diseases and Treatments
Keywords
STAT3, Müller cells, retinal regeneration, LIN28A, cell cycle re-entry, photoreceptor apoptosis, zebrafish retina, morpholino knockdown
MeSH terms
Actins, Adaptation, Ocular, Animals, Cell Count, Gene Expression Regulation, Glial Fibrillary Acidic Protein, Light, Neuroglia, Retina, Retinal Diseases, RNA, Messenger, Transcription Factors, Zebrafish, Proliferating Cell Nuclear Antigen, Zebrafish Proteins, Animals, Genetically Modified, Cell Proliferation, Green Fluorescent Proteins, STAT3 Transcription Factor, Basic Helix-Loop-Helix Proteins, Neurogenesis

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