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Related Experiment Videos

Strategies for specifying form and pattern: adhesion-guided multicellular assembly.

M S Steinberg, T J Poole

    Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
    |October 7, 1981
    PubMed
    Summary
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    Cellular adhesion guides tissue development and pattern formation. Differential adhesion explains how cell interactions create structures like tubes and sheets, and segregate tissues during organogenesis.

    Area of Science:

    • Developmental Biology
    • Cell Biology
    • Biophysics

    Background:

    • Multicellular patterns emerge from complex developmental strategies.
    • Cell position and cell fate are intricately linked in pattern formation.
    • Adhesion-mediated interactions are key to understanding morphogenesis.

    Purpose of the Study:

    • To categorize developmental strategies for multicellular pattern emergence.
    • To explore how cell adhesion influences tissue movement and pattern specification.
    • To investigate adhesion-driven morphogenesis using the salamander pronephric duct.

    Main Methods:

    • Categorization of developmental strategies based on cell position and fate.
    • Application of the differential adhesion hypothesis to predict cell behavior.

    Related Experiment Videos

  • Experimental analysis of salamander pronephric duct morphogenesis.

    • Main Results:

    • Differential adhesion can dictate stable cell configurations (spheres, sheets, tubes, vesicles).
    • Heterogeneous cell populations sort or intermix based on adhesive forces.
    • Adhesion-driven tissue immiscibility causes organ segregation, as seen in pronephric duct development.

    Conclusions:

    • Cellular adhesion is a fundamental mechanism driving tissue morphogenesis and pattern formation.
    • The differential adhesion hypothesis provides a framework for understanding emergent tissue structures.
    • An adhesion gradient guides the pronephric duct migration, demonstrating adhesion's role in organ development.