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Environmental influences on neural crest cell migration

M Bronner-Fraser1

  • 1Developmental Biology Center, University of California, Irvine 92717.

Journal of Neurobiology
|February 1, 1993
PubMed
Summary
This summary is machine-generated.

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Neural crest cell migration in avian embryos is guided by tissue interactions. Trunk neural crest cells avoid posterior sclerotome, while head region migration relies on extracellular matrix interactions.

Area of Science:

  • Developmental biology
  • Cell migration
  • Embryology

Background:

  • Neural crest cells are crucial for embryonic development.
  • Their extensive migration and interaction with tissues are vital.
  • Understanding their migratory patterns is key to developmental processes.

Purpose of the Study:

  • To investigate the guidance mechanisms of neural crest cell migration in avian embryos.
  • To differentiate the roles of tissue and extracellular matrix interactions in trunk versus head neural crest migration.

Main Methods:

  • Utilized cell marking techniques in avian embryos.
  • Observed and analyzed neural crest cell migratory pathways within the developing embryo.

Main Results:

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  • Neural crest cells in the trunk migrate through the anterior sclerotome, avoiding the posterior half and the notochord region.
  • This specific trunk migration pattern suggests inhibition by surrounding tissues.
  • In contrast, neural crest cell migration in the head appears primarily mediated by extracellular matrix interactions.

Conclusions:

  • Tissue interactions, specifically inhibition, dictate neural crest cell migration patterns in the trunk.
  • Extracellular matrix interactions are the primary drivers of neural crest cell migration in the head region.