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Retinal stem cells and regeneration.

Ala Moshiri1, Jennie Close, Thomas A Reh

  • 1Neurobiology and Behavior Program, Department of Biological Structure, Center for Developmental Biology, Health Sciences Center, University of Washington, Seattle WA, USA.

The International Journal of Developmental Biology
|November 24, 2004
PubMed
Summary
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Retinal regeneration involves cell fate changes and neurogenesis. Different species show varying degrees of retinal repair, from complete regeneration in amphibians to limited neuronal production in mammals.

Area of Science:

  • Developmental Biology
  • Ophthalmology
  • Regenerative Medicine

Background:

  • The optic vesicle forms diverse ocular tissues like the neural retina and pigmented epithelium.
  • Retinal regeneration can involve transdifferentiation between ocular cell types.
  • Signaling molecules critically influence cell fate determination in ocular tissues.

Purpose of the Study:

  • To review signaling molecule influence on ocular tissue cell fate.
  • To present evidence for neurogenesis in the mature retina.
  • To describe diverse retinal regenerative phenomena across species.

Main Methods:

  • Literature review of cell fate determination in ocular tissues.
  • Analysis of evidence for adult retinal neurogenesis.

Related Experiment Videos

  • Comparative description of retinal regeneration mechanisms.

    • Main Results:

    • Signaling pathways guide cell fate in ocular development and regeneration.
    • Neurogenesis occurs in the mature retina of various species.
    • Regenerative capacity varies significantly, with fish and amphibians exhibiting complete retinal regeneration, while mammals show limited neuronal replacement.

    Conclusions:

    • Understanding cell fate determination is key to studying retinal regeneration.
    • The mature retina retains some capacity for neurogenesis.
    • Comparative studies highlight diverse regenerative strategies in the vertebrate retina.