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Updated: Mar 16, 2026
Analysis of Neural Crest Migration and Differentiation by Cross-species Transplantation
Published on: February 7, 2012
Analysis of neural crest-derived clones reveals novel aspects of facial development
Marketa Kaucka1, Evgeny Ivashkin2, Daniel Gyllborg3
1Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm SE-171 77, Sweden.
Abstract:
Cranial neural crest cells populate the future facial region and produce ectomesenchyme-derived tissues, such as cartilage, bone, dermis, smooth muscle, adipocytes, and many others. However, the contribution of individual neural crest cells to certain facial locations and the general spatial clonal organization of the ectomesenchyme have not been determined. We investigated how neural crest cells give rise to clonally organized ectomesenchyme and how this early ectomesenchyme behaves during the developmental processes that shape the face. Using a combination of mouse and zebrafish models, we analyzed individual migration, cell crowd movement, oriented cell division, clonal spatial overlapping, and multilineage differentiation. The early face appears to be built from multiple spatially defined overlapping ectomesenchymal clones. During early face development, these clones remain oligopotent and generate various tissues in a given location. By combining clonal analysis, computer simulations, mouse mutants, and live imaging, we show that facial shaping results from an array of local cellular activities in the ectomesenchyme. These activities mostly involve oriented divisions and crowd movements of cells during morphogenetic events. Cellular behavior that can be recognized as individual cell migration is very limited and short-ranged and likely results from cellular mixing due to the proliferation activity of the tissue. These cellular mechanisms resemble the strategy behind limb bud morphogenesis, suggesting the possibility of common principles and deep homology between facial and limb outgrowth.
Insights
Cranial neural crest cells form spatially organized facial ectomesenchyme clones. These clones, through local cell activities like oriented division, shape the face, revealing potential common developmental principles with limb outgrowth.
Area of Science:
- Developmental Biology
- Craniofacial Development
- Cellular Biology
Background:
- Cranial neural crest cells are crucial for facial development, forming diverse ectomesenchyme tissues.
- The spatial organization and clonal contribution of these cells to facial structures remain poorly understood.
Purpose of the Study:
- To investigate the clonal organization of cranial neural crest-derived ectomesenchyme in the developing face.
- To elucidate the cellular behaviors and mechanisms driving facial morphogenesis.
Main Methods:
- Utilized mouse and zebrafish models for live imaging and clonal analysis.
- Employed computer simulations, analysis of cell migration, oriented cell division, and crowd movements.
- Investigated multilineage differentiation within ectomesenchymal clones.
Main Results:
- The early face is constructed from multiple, spatially defined, overlapping ectomesenchymal clones.
- These clones are oligopotent, generating various tissues within specific facial locations.
- Facial shaping is driven by local cellular activities, primarily oriented cell divisions and crowd movements, not extensive individual cell migration.
Conclusions:
- Facial morphogenesis relies on coordinated local cellular behaviors within ectomesenchymal clones.
- The findings suggest shared developmental principles and deep homology between facial and limb outgrowth.
- Individual cell migration plays a limited role, likely secondary to proliferation-driven tissue mixing.
