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Cell adhesiveness and embryonic differentiation

R Bellairs, A S Curtis, E J Sanders

    Journal of Embryology and Experimental Morphology
    |August 1, 1978
    PubMed
    Summary
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    Cell adhesiveness increases during embryonic differentiation in chick embryos. This enhanced cell adhesion is linked to somite segmentation but not neural tube formation.

    Area of Science:

    • Developmental Biology
    • Cell Biology
    • Embryology

    Background:

    • Cell-to-cell adhesion is crucial for tissue formation and morphogenesis.
    • Understanding changes in cell adhesiveness during embryonic development is key to deciphering developmental processes.

    Purpose of the Study:

    • To investigate alterations in cell-to-cell adhesiveness during embryonic differentiation.
    • To determine the role of cell adhesion changes in specific developmental events like somite segmentation and neural tube formation.

    Main Methods:

    • Utilized Curtis's technique (1969) to quantify cell adhesion.
    • Examined ectodermal, neural, and mesodermal cells from chick embryos at differentiation stages 7 and 12.

    Main Results:

    Related Experiment Videos

  • Segmented mesoderm cells exhibited higher adhesiveness than unsegmented mesoderm cells.
  • Ectodermal cells were more adhesive than neural cells at both stages.
  • Adhesiveness increased in ectodermal and neural cells between stages 7 and 12.

    • Conclusions:

    • Increased cell adhesiveness may contribute to somite segmentation.
    • Enhanced cell adhesion does not appear to be a primary factor in neural tube formation.