PUBLICATION

Identification of Ca2+ signaling components in neural stem/progenitor cells during differentiation into neurons and glia in intact and dissociated zebrafish neurospheres.

Authors
Tse, M.K., Hung, T.S., Chan, C.M., Wong, T., Dorothea, M., Leclerc, C., Moreau, M., Miller, A.L., Webb, S.E.
ID
ZDB-PUB-180624-5
Date
2018
Source
Science China. Life sciences   61(11): 1352-1368 (Journal)
Registered Authors
Miller, Andrew L., Webb, Sarah E.
Keywords
Ca2+ signaling, IP3 receptors, STIM and Orai, differentiation, neural stem/progenitor cells, neurospheres, ryanodine receptors, zebrafish
MeSH Terms
  • Animals
  • Calcium Signaling/physiology*
  • Cell Differentiation/physiology*
  • Cells, Cultured
  • Gene Expression Regulation, Developmental
  • Neural Stem Cells/cytology*
  • Neural Stem Cells/physiology*
  • Neurodegenerative Diseases/physiopathology
  • Neuroglia/cytology*
  • Neurons/cytology*
  • Signal Transduction
  • Zebrafish
PubMed
29931586 Full text @ Sci. China Ser. C-Life Sci.
Abstract
The development of the CNS in vertebrate embryos involves the generation of different sub-types of neurons and glia in a complex but highly-ordered spatio-temporal manner. Zebrafish are commonly used for exploring the development, plasticity and regeneration of the CNS, and the recent development of reliable protocols for isolating and culturing neural stem/progenitor cells (NSCs/NPCs) from the brain of adult fish now enables the exploration of mechanisms underlying the induction/specification/differentiation of these cells. Here, we refined a protocol to generate proliferating and differentiating neurospheres from the entire brain of adult zebrafish. We demonstrated via RT-qPCR that some isoforms of ip3r, ryr and stim are upregulated/downregulated significantly in differentiating neurospheres, and via immunolabelling that 1,4,5-inositol trisphosphate receptor (IP3R) type-1 and ryanodine receptor (RyR) type-2 are differentially expressed in cells with neuron- or radial glial-like properties. Furthermore, ATP but not caffeine (IP3R and RyR agonists, respectively), induced the generation of Ca2+ transients in cells exhibiting neuron- or glial-like morphology. These results indicate the differential expression of components of the Ca2+-signaling toolkit in proliferating and differentiating cells. Thus, given the complexity of the intact vertebrate brain, neurospheres might be a useful system for exploring neurodegenerative disease diagnosis protocols and drug development using Ca2+ signaling as a read-out.
Genes / Markers
Figures
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Antibodies
Orthology
Engineered Foreign Genes
Mapping