ZFIN ID: ZDB-PUB-170412-9
A novel perivascular cell population in the zebrafish brain
Venero Galanternik, M., Castranova, D., Gore, A.V., Blewett, N.H., Jung, H.M., Stratman, A.N., Kirby, M.R., Iben, J., Miller, M.F., Kawakami, K., Maraia, R.J., Weinstein, B.M.
Date: 2017
Source: eLIFE   6: (Journal)
Registered Authors: Venero Galanternik, Marina
Keywords: developmental biology, mouse, neuroscience, stem cells, zebrafish
Microarrays: GEO:GSE97421
MeSH Terms:
  • Animals
  • Blood Vessels/cytology*
  • Blood-Brain Barrier/cytology*
  • Brain/cytology*
  • Cell Differentiation
  • Endothelial Cells/cytology*
  • Zebrafish*
PubMed: 28395729 Full text @ Elife
The blood-brain barrier is essential for the proper homeostasis and function of the CNS, but its mechanism of function is poorly understood. Perivascular cells surrounding brain blood vessels are thought to be important for blood-brain barrier establishment, but their roles are not well defined. Here, we describe a novel perivascular cell population closely associated with blood vessels on the zebrafish brain. Based on similarities in their morphology, location, and scavenger behavior, these cells appear to be the zebrafish equivalent of cells variably characterized as Fluorescent Granular Perithelial cells (FGPs), perivascular macrophages, or 'Mato Cells' in mammals. Despite their macrophage-like morphology and perivascular location, zebrafish FGPs appear molecularly most similar to lymphatic endothelium, and our imaging studies suggest that these cells emerge by transdifferentiation from endothelium of the optic choroidal vascular plexus. Our findings provide the first report of a perivascular cell population in the brain derived from vascular endothelium.