|ZFIN ID: ZDB-PUB-101108-25|
Investigating regeneration and functional integration of CNS neurons: Lessons from zebrafish genetics and other fish species
Fleisch, V.C., Fraser, B., and Allison, W.T.
|Source:||Biochimica et biophysica acta. Molecular basis of disease 1812(3): 364-380 (Review)|
|Registered Authors:||Allison, Ted, Fleisch, Valerie|
|Keywords:||Zebrafish, Regeneration, Retina, Optic nerve, Spinal cord, Brain, Central nervous system, Stem cell, Glia|
|PubMed:||21044883 Full text @ BBA Molecular Basis of Disease|
Fleisch, V.C., Fraser, B., and Allison, W.T. (2011) Investigating regeneration and functional integration of CNS neurons: Lessons from zebrafish genetics and other fish species. Biochimica et biophysica acta. Molecular basis of disease. 1812(3):364-380.
ABSTRACTZebrafish possess a robust, innate CNS regenerative ability. Combined with their genetic tractability and vertebrate CNS architecture, this ability makes zebrafish an attractive model to gain requisite knowledge for clinical CNS regeneration. In treatment of neurological disorders, one can envisage replacing lost neurons through stem cell therapy or through activation of latent stem cells in the CNS. Here we review the evidence that radial glia are a major source of CNS stem cells in zebrafish and thus activation of radial glia is an attractive therapeutic target. We discuss the regenerative potential and the molecular mechanisms thereof, in the zebrafish spinal cord, retina, optic nerve and higher brain centres. We evaluate various cell ablation paradigms developed to induce regeneration, with particular emphasis on the need for (high throughput) indicators that neuronal regeneration has restored sensory or motor function. We also examine the potential confound that regeneration imposes as the community develops zebrafish models of neurodegeneration. We conclude that zebrafish combine several characters that make them a potent resource for testing hypotheses and discovering therapeutic targets in functional CNS regeneration.
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