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Related Experiment Videos

Neural crest cell plasticity and its limits.

Nicole M Le Douarin1, Sophie Creuzet, Gérard Couly

  • 1Institut d'Embryologie cellulaire et moléculaire du CNRS et du Collège de France (UMR CNRS 7128), 94736 Nogent-sur-Marne, France. nicole.le-douarin@college-de-france.fr

Development (Cambridge, England)
|September 11, 2004
PubMed
Summary

Neural crest cells are versatile precursors that form diverse cell types. Environmental cues and gene expression, like Hox genes, guide their differentiation and development, particularly in facial skeleton formation.

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Area of Science:

  • Developmental biology
  • Cell biology
  • Genetics

Background:

  • Neural crest (NC) cells are multipotent stem cells originating from the ectoderm.
  • NC cells migrate extensively and differentiate into a wide range of cell types, including neurons, glia, melanocytes, and endocrine cells.
  • The differentiation of NC cells is influenced by environmental signals and gene regulatory networks.

Purpose of the Study:

  • To investigate the factors influencing neural crest cell differentiation and fate.
  • To explore the role of environmental cues and gene expression in neural crest development.
  • To understand the mechanisms underlying facial skeleton morphogenesis involving neural crest cells.

Main Methods:

  • Avian embryo experiments to observe neural crest cell differentiation.

Related Experiment Videos

  • In vitro studies using cytokines like endothelin 3 to induce cell state reversibility.
  • Analysis of Hox gene expression to determine its role in mesenchymal NC precursor fate.

    • Main Results:

    • Neural crest cell differentiation is significantly influenced by environmental cues in avian embryos.
    • Differentiated cells, such as melanocytes and glia, can revert to a pluripotent state in vitro via endothelin 3.
    • Hox gene expression plays a crucial role in restricting the fate of mesenchymal neural crest precursors.
    • Facial skeleton morphogenesis involves a complex interplay between epithelia and neural crest cells.

    Conclusions:

    • Neural crest cell development is a dynamic process regulated by both extrinsic and intrinsic factors.
    • The plasticity of neural crest cells allows for potential therapeutic applications.
    • Understanding the crosstalk between epithelia and neural crest cells is key to comprehending craniofacial development.