PUBLICATION

Locomotion dependent neuron-glia interactions control neurogenesis and regeneration in the adult zebrafish spinal cord

Authors
Chang, W., Pedroni, A., Bertuzzi, M., Kizil, C., Simon, A., Ampatzis, K.
ID
ZDB-PUB-210813-3
Date
2021
Source
Nature communications   12: 4857 (Journal)
Registered Authors
Kizil, Caghan
Keywords
none
MeSH Terms
  • Synaptic Transmission
  • Neural Stem Cells/cytology
  • Neural Stem Cells/metabolism
  • Recovery of Function
  • Animals
  • Neurons/metabolism*
  • Neuroglia/metabolism*
  • Zebrafish
  • gamma-Aminobutyric Acid/metabolism
  • Interneurons/metabolism
  • Spinal Cord/cytology
  • Spinal Cord/growth & development*
  • Spinal Cord/physiology
  • Receptors, Cholinergic/metabolism
  • Receptors, GABA-A/metabolism
  • Locomotion*
  • Physical Conditioning, Animal
  • Neurogenesis
(all 18)
PubMed
34381039 Full text @ Nat. Commun.
Abstract
Physical exercise stimulates adult neurogenesis, yet the underlying mechanisms remain poorly understood. A fundamental component of the innate neuroregenerative capacity of zebrafish is the proliferative and neurogenic ability of the neural stem/progenitor cells. Here, we show that in the intact spinal cord, this plasticity response can be activated by physical exercise by demonstrating that the cholinergic neurotransmission from spinal locomotor neurons activates spinal neural stem/progenitor cells, leading to neurogenesis in the adult zebrafish. We also show that GABA acts in a non-synaptic fashion to maintain neural stem/progenitor cell quiescence in the spinal cord and that training-induced activation of neurogenesis requires a reduction of GABAA receptors. Furthermore, both pharmacological stimulation of cholinergic receptors, as well as interference with GABAergic signaling, promote functional recovery after spinal cord injury. Our findings provide a model for locomotor networks' activity-dependent neurogenesis during homeostasis and regeneration in the adult zebrafish spinal cord.
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Citation
Chang, W., Pedroni, A., Bertuzzi, M., Kizil, C., Simon, A., Ampatzis, K. (2021) Locomotion dependent neuron-glia interactions control neurogenesis and regeneration in the adult zebrafish spinal cord. Nature communications. 12:4857.