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Related Experiment Video

Updated: Feb 8, 2026

Separation of Mouse Embryonic Facial Ectoderm and Mesenchyme
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Ectodermal markers delineate the neural fold interface during avian neurulation.

A Lawson1, J F Colas, G C Schoenwolf

  • 1Department of Neurobiology and Anatomy, University of Utah School of Medicine, Salt Lake City, Utah 84132, USA.

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|September 1, 2000
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Summary

New markers Plato and AP-2 reveal cell rearrangements during avian neural fold formation. These findings clarify how neural crest cells move within the developing neural tube, crucial for understanding neurulation.

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Area of Science:

  • Developmental Biology
  • Neuroscience
  • Cell Biology

Background:

  • Neural fold formation is critical for neurulation, establishing the neural tube.
  • Previous work identified four key events in avian neural fold morphogenesis.
  • Understanding cell dynamics within the neural fold is essential for developmental processes.

Purpose of the Study:

  • To identify novel markers for studying avian neural fold formation.
  • To investigate cell rearrangements within the neural fold transition zone.
  • To delineate the incipient neural fold interface using molecular markers.

Main Methods:

  • Utilized an antisense riboprobe for the novel gene Plato.
  • Employed an antibody for the transcription factor AP-2.
  • Examined avian embryos to observe cell populations and their movements.

Main Results:

  • Plato marks cranial neural ectoderm and premigratory neural crest cells.
  • AP-2 marks epidermal ectoderm and early migratory neural crest cells.
  • Significant cell rearrangement occurs in the neural fold transition zone, redistributing neural crest precursors.

Conclusions:

  • Plato and AP-2 are valuable markers for studying neural fold development.
  • Ectodermal cell rearrangements are key to neural crest cell positioning.
  • These markers help delineate the neural fold interface and understand neurulation.