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Scientific article
Open access
English

Molecular identification of distinct neurogenic and melanogenic neural crest sublineages

Published inDevelopment, vol. 130, no. 2, p. 321-330
Publication date2003
Abstract

Clonal and lineage analyses have demonstrated that although some neural crest cells have the ability to generate multiple cell types and display self-renewal ability, other crest cells generate a single or limited repertoire of cell types. However, it is not yet clear when, and in what order, crest cells become specified to adopt a particular fate. We report that the receptor tyrosine kinases TrkC and C-Kit are expressed by distinct neural crest subpopulations in vitro. We then analyzed the lineages of individual receptor-expressing crest cells and found that TrkC-expressing cells that have just emerged from the neural tube give rise to clones containing neurons or glial cells, or both, but never produce melanocytes. A short time later, TrkC-expressing cells only generate pure neuronal clones. By contrast, from their earliest appearance in neural tube outgrowths, C-Kit-expressing cells invariably give rise to clones containing only melanocytes. Our results directly demonstrate that distinct neurogenic and melanogenic sublineages diverge before or soon after crest cells emerge from the neural tube, that fate-restricted precursors are present in nascent neural crest populations and that these sublineages can be distinguished by their cell type-specific expression of receptor tyrosine kinases.

Keywords
  • Animals
  • Cell Lineage
  • Cells, Cultured
  • Clone Cells/metabolism
  • Embryo, Nonmammalian/anatomy & histology
  • Gene Expression Regulation, Developmental
  • Immunohistochemistry
  • Melanocytes/physiology
  • Neural Crest/cytology/embryology
  • Proto-Oncogene Proteins c-kit/metabolism
  • Quail
  • Receptor, trkC/metabolism
  • Stem Cells/physiology
  • Time Factors
Citation (ISO format)
LUO, Rushu et al. Molecular identification of distinct neurogenic and melanogenic neural crest sublineages. In: Development, 2003, vol. 130, n° 2, p. 321–330. doi: 10.1242/dev.00213
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Article (Published version)
accessLevelPublic
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ISSN of the journal0950-1991
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