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Related Experiment Video

Updated: Oct 28, 2025

Imaging and 3D Reconstruction of Cerebrovascular Structures in Embryonic Zebrafish
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Imaging and 3D Reconstruction of Cerebrovascular Structures in Embryonic Zebrafish

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Using Zebrafish to Elucidate Glial-Vascular Interactions During CNS Development.

Robyn A Umans1, Carolyn Pollock2, William A Mills1

  • 1Glial Biology in Health, Disease, and Cancer Center, The Fralin Biomedical Research Institute at VTC, Roanoke, VA, United States.

Frontiers in Cell and Developmental Biology
|July 16, 2021
PubMed
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Zebrafish glia, like those in mammals, interact with brain blood vessels. Different glial types (olig2+ and gfap+) have distinct roles in vascular development and migration, making zebrafish a valuable model for studying these relationships.

Area of Science:

  • Neuroscience
  • Developmental Biology
  • Vascular Biology

Background:

  • Glia-blood vessel interactions are crucial for brain function.
  • Mammalian models are established but challenging for developmental studies.
  • Zebrafish offer a tractable and accessible system for live imaging.

Purpose of the Study:

  • To investigate conserved glial-vascular interactions in zebrafish.
  • To characterize the roles of distinct glial populations (olig2+ and gfap+) in brain vasculature development.
  • To establish zebrafish as a model for studying glial-vascular relationships.

Main Methods:

  • Utilized transgenic zebrafish lines expressing olig2 and gfap to identify glial populations.
  • Performed live imaging to observe glial-brain vessel interactions.
Keywords:
angiogenesisbrain developmentgliavasculaturezebrafish

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  • Employed pharmacological and genetic approaches to manipulate glial function and assess effects on vascular development.

    • Main Results:

    • Zebrafish olig2+ and gfap+ glia exhibit distinct lineages and interact with brain vasculature.
    • olig2+ glia use blood vessels for migration, influenced by Wnt signaling.
    • Ablation of gfap+ glia impairs CNS angiogenesis via reduced Vascular endothelial growth factor (Vegf).

    Conclusions:

    • Zebrafish glia possess conserved traits with mammalian glia regarding vascular interactions.
    • Distinct glial lineages (olig2+ and gfap+) play differential roles in brain blood vessel development.
    • Zebrafish are a suitable model for in vivo studies of glial-vascular relationships during vertebrate brain development.