Ena/VASP: proteins at the tip of the nervous system

Curr Opin Neurobiol. 2008 Feb;18(1):53-9. doi: 10.1016/j.conb.2008.05.007. Epub 2008 May 26.

Abstract

The emergence of neurites from a symmetrical cell body is an essential feature of nervous system development. Neurites are the precursors of axons and dendrites and are tipped by growth cones, motile structures that guide elongating axons in the developing nervous system. Growth cones steer the axon along a defined path to its appropriate target in response to guidance cues. This navigation involves the dynamic extension and withdrawal of actin-filled finger-like protrusions called filopodia that continuously sample their environment. Ena/VASP proteins, a conserved family of actin-regulatory proteins, are crucial for filopodia formation and function downstream of several guidance cues. Here we review recent findings into Ena/VASP function in neurite initiation, axon outgrowth and guidance.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't
  • Review

MeSH terms

  • Actin Cytoskeleton / metabolism
  • Actin Cytoskeleton / ultrastructure
  • Animals
  • Cell Differentiation / genetics*
  • Cues
  • DNA-Binding Proteins / genetics
  • DNA-Binding Proteins / metabolism*
  • Growth Cones / metabolism
  • Growth Cones / ultrastructure
  • Humans
  • Nervous System / cytology
  • Nervous System / embryology*
  • Nervous System / metabolism*
  • Neurites / metabolism*
  • Neurites / ultrastructure
  • Pseudopodia / metabolism
  • Pseudopodia / ultrastructure
  • Stem Cells / cytology
  • Stem Cells / metabolism*

Substances

  • DNA-Binding Proteins
  • ENA-VASP proteins