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[Axons, dendrites and adhesion].

B Chamak1, A Prochiantz

  • 1Unité n. 114 de l'I.N.S.E.R.M., Chaire de Neuropharmacologie du Collège de France, Paris.

Comptes Rendus De L'Academie Des Sciences. Serie III, Sciences De La Vie
|January 1, 1989
PubMed
Summary
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Decreasing neuron-substratum adhesion in vitro promotes axonal growth while inhibiting dendritic development in embryonic rat neurons. This suggests neurite types have distinct physical properties influencing their morphology.

Area of Science:

  • Neuroscience
  • Developmental Biology
  • Cell Biology

Context:

  • Investigating neuronal morphology in vitro.
  • Focusing on rat embryonic day 14 (E14) mesencephalic neurons.
  • Examining the impact of neuron-substratum adhesion.

Purpose:

  • To study the relationship between neuron-substratum adhesion and neurite morphology.
  • To understand how adhesion affects axonal and dendritic growth.
  • To propose a model explaining observed morphological differences.

Summary:

  • Neuronal morphology of E14 rat mesencephalic neurons was analyzed under varying adhesion conditions.
  • Reduced neuron-substratum adhesion was found to enhance axonal elongation.
  • Conversely, decreased adhesion inhibited dendritic growth, suggesting differential physical properties of neurites.

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Impact:

  • Provides insights into the physical mechanisms governing neuronal development.
  • Contributes to understanding neurite differentiation and growth regulation.
  • Informs models of neural circuit formation and development.