HOPX Defines Heterogeneity of Postnatal Subventricular Zone Neural Stem Cells

Stem Cell Reports. 2018 Sep 11;11(3):770-783. doi: 10.1016/j.stemcr.2018.08.006. Epub 2018 Aug 30.


The largest diversity of neural lineages generated from the subventricular zone (SVZ) occurs early after birth and is regulated in a spatiotemporal manner depending on the expression of specific transcriptional cues. Transcriptomics and fate-mapping approaches were employed to explore the relationship between regional expression of transcription factors by neural stem cells (NSCs) and the specification of distinct neural lineages. Our results support an early priming of NSCs for the genesis of defined cell types depending on their spatial location in the SVZ and identify HOPX as a marker of a subpopulation primed toward astrocytic fates. Manipulation of HOPX expression, however, showed no effect on astrogenesis but resulted in marked changes in the number of NSCs and of their progenies. Taken together, our results highlight transcriptional and spatial heterogeneity of postnatal NSCs and reveal a key role for HOPX in controlling SVZ germinal activity.

Keywords: gliogenesis; neurogenesis; outer radial glia; postnatal; radial glia; regionalization; subventricular zone; transcriptional heterogeneity.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Astrocytes / cytology*
  • Astrocytes / metabolism
  • Cell Lineage
  • Gene Expression Regulation, Developmental*
  • Homeodomain Proteins / genetics*
  • Lateral Ventricles / cytology*
  • Lateral Ventricles / growth & development
  • Mice
  • Mice, Inbred C57BL
  • Neural Stem Cells / cytology*
  • Neural Stem Cells / metabolism
  • Neurogenesis*
  • Neuroglia / cytology
  • Neuroglia / metabolism
  • Transcriptome


  • Hod protein, mouse
  • Homeodomain Proteins