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Related Experiment Videos

Repellent cues in axon guidance.

R J Keynes1, G M Cook

  • 1Department of Anatomy, University of Cambridge, UK.

Current Opinion in Neurobiology
|February 1, 1992
PubMed
Summary
This summary is machine-generated.

Axon guidance repulsion is increasingly evident in the developing nervous system. Further research into molecular mechanisms will define repulsive guidance functions during neural development.

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Area of Science:

  • Neuroscience
  • Developmental Biology
  • Molecular Biology

Background:

  • Axon guidance is crucial for establishing neural circuits.
  • Repulsive cues are implicated in guiding axons during development.
  • In vitro studies suggest multiple intracellular mechanisms mediate growth cone collapse.

Purpose of the Study:

  • To investigate the in vivo role of repulsive axon guidance.
  • To identify and characterize molecules involved in repulsive axon guidance.
  • To elucidate the intracellular mechanisms underlying growth cone collapse.

Main Methods:

  • In vivo studies of axon guidance.
  • Molecular cloning of candidate repulsion ligands and receptors.
  • In vitro growth cone collapse assays.

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Main Results:

  • Growing evidence supports repulsive axon guidance in vivo.
  • Multiple intracellular pathways are involved in growth cone collapse.
  • Identification of novel ligands and receptors for repulsive guidance.

Conclusions:

  • Repulsive axon guidance is a significant mechanism in neural development.
  • Understanding molecular interactions is key to defining repulsive guidance functions.
  • Further research will clarify the roles of identified molecules in vivo.