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[Cell-to-cell recognition in limb pattern formation]

N Wada1, T Nohno

  • 1Department of Molecular Biology, Kawasaki Medical School, Kurashiki, Japan.

Kaibogaku Zasshi. Journal of Anatomy
|February 17, 1999
PubMed
Summary
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Limb bud mesenchymal cells exhibit regional differences in cell affinity, crucial for skeletal pattern formation. Glycosylphosphatidylinositol-anchored proteins mediate this differential affinity, guiding limb development.

Area of Science:

  • Developmental biology
  • Cell biology

Context:

  • Vertebrate limb development serves as a model for understanding pattern formation.
  • Limb bud mesenchymal cells differentiate into chondrogenic or fibroblastic cells, forming cartilage structures.
  • Patterning is regulated by signaling molecules and transcription factors.

Purpose:

  • To review regional differences in limb bud mesenchymal cell affinity.
  • To investigate the role of cell adhesion in cartilage differentiation and pattern formation.
  • To highlight the involvement of glycosylphosphatidylinositol (GPI)-anchored proteins in differential cell affinity.

Summary:

  • Mesenchymal cell aggregation in the limb bud forms skeletal element prepatterns.
  • Cell adhesion molecules are involved in cell aggregation and cartilage differentiation.

Related Experiment Videos

  • Differential cell affinity in limb bud mesenchyme reflects positional identity, mediated by GPI-anchored proteins.

    • Impact:

    • Understanding cell affinity's role in limb bud pattern formation.
    • Identifying GPI-anchored proteins as key regulators of mesenchymal cell positional identity.
    • Providing insights into the molecular mechanisms underlying skeletal development.