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Turning Müller Glia into Neural Progenitors in the Retina

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Abstract

Stimulating neuronal regeneration is a potential strategy to treat sight-threatening diseases of the retina. In some classes of vertebrates, retinal regeneration occurs spontaneously to effectively replace neurons lost to acute damage in order to restore visual function. There are different mechanisms and cellular sources of retinal regeneration in different species, include the retinal pigmented epithelium, progenitors seeded across the retina, and the Müller glia. This review briefly summarizes the different mechanisms of retinal regeneration in frogs, fish, chicks, and rodents. The bulk of this review summarizes and discusses recent findings regarding regeneration from Müller glia-derived progenitors, with emphasis on findings in the chick retina. The Müller glia are a promising source of regeneration-supporting cells that are intrinsic to the retina and significant evidence indicated these glias can be stimulated to produce neurons in different classes of vertebrates. The key to harnessing the neurogenic potential of Müller glia is to identify the secreted factors, signaling pathways, and transcription factors that enable de-differentiation, proliferation, and neurogenesis. We review findings regarding the roles of mitogen-activated protein kinase and notch signaling in the proliferation and generation of Müller glia-derived retinal progenitors.

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Authors and Affiliations

  1. Department of Neuroscience, College of Medicine, The Ohio State University, 4190 Graves Hall, 333 West 10th Ave, Columbus, OH, 43210-1239, USA

    Rachel Bongini

  2. Department of Neuroscience, College of Medicine, The Ohio State University, 3020 Graves Hall, 333 West 10th Ave, Columbus, OH, 43210-1239, USA

    Andy J. Fischer

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  1. Andy J. Fischer
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Correspondence to Andy J. Fischer.

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Fischer, A.J., Bongini, R. Turning Müller Glia into Neural Progenitors in the Retina. Mol Neurobiol 42, 199–209 (2010). https://doi.org/10.1007/s12035-010-8152-2

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