Disruption of Eph/ephrin signaling affects migration and proliferation in the adult subventricular zone

Nat Neurosci. 2000 Nov;3(11):1091-7. doi: 10.1038/80606.


The subventricular zone (SVZ) of the lateral ventricles, the largest remaining germinal zone of the adult mammalian brain, contains an extensive network of neuroblasts migrating rostrally to the olfactory bulb. Little is known about the endogenous proliferation signals for SVZ neural stem cells or guidance cues along the migration pathway. Here we show that the receptor tyrosine kinases EphB1-3 and EphA4 and their transmembrane ligands, ephrins-B2/3, are expressed by cells of the SVZ. Electron microscopy revealed ephrin-B ligands associated with SVZ astrocytes, which function as stem cells in this germinal zone. A three-day infusion of the ectodomain of either EphB2 or ephrin-B2 into the lateral ventricle disrupted migration of neuroblasts and increased cell proliferation. These results suggest that Eph/ephrin signaling is involved in the migration of neuroblasts in the adult SVZ and in either direct or indirect regulation of cell proliferation.

Publication types

  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, P.H.S.

MeSH terms

  • Animals
  • Astrocytes / cytology
  • Astrocytes / drug effects
  • Astrocytes / metabolism*
  • Cell Division / drug effects
  • Cell Division / physiology
  • Cell Movement / drug effects
  • Cell Movement / physiology*
  • Ephrin-B1
  • Ephrin-B2
  • Fetal Proteins / metabolism*
  • Humans
  • Lateral Ventricles / drug effects
  • Lateral Ventricles / metabolism*
  • Membrane Proteins / metabolism*
  • Membrane Proteins / pharmacology
  • Mice
  • Receptor Protein-Tyrosine Kinases / metabolism*
  • Receptor, EphA4
  • Signal Transduction / drug effects
  • Signal Transduction / physiology


  • Ephrin-B1
  • Ephrin-B2
  • Fetal Proteins
  • Membrane Proteins
  • Receptor Protein-Tyrosine Kinases
  • Receptor, EphA4