Jul 6, 2016

Retinal regeneration in birds and mice

Current Opinion in Genetics & Development
Matthew S Wilken, Thomas A Reh

Abstract

Retinal regeneration from resident Müller glia cells is robust in teleost fish, but is severely limited in birds and mammals. After neurotoxic injury, chick Müller glia can proliferate, and activate neurogenic genes, but they display limited capacity to differentiate into neurons. Developmental signaling molecules enhance this process. Regeneration of retinal neurons in rodents is even more limited. However, studies show evidence of proliferation and neurogenic gene expression after injury, with stronger effects in rats than mice, and differences between mouse strains. Mitogenic growth factors and Wnt signaling potentiate the proliferative response, while misexpression of the proneural transcription factor, Ascl1, reprograms to generate neurons from Müller glial in vitro, and stimulates neuronal regeneration in young mice, in vivo.

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  • References49
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Citations

Mentioned in this Paper

Study
In Vivo
Ascl1
Teleost fish
Neurons
Tanycytes
WNT1
Neuroglia
Gene Expression
Cell Proliferation

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