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Related Experiment Videos

Cell adhesion molecules.

G M Edelman

    Science (New York, N.Y.)
    |February 4, 1983
    PubMed
    Summary
    This summary is machine-generated.

    Cell-cell recognition may involve local protein modulation rather than numerous markers. Cell adhesion molecules (CAMs) support this modulation theory, explaining neural development and disorders.

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    Area of Science:

    • Neuroscience
    • Developmental Biology
    • Cell Biology

    Background:

    • Cell-cell recognition is crucial for tissue development and function.
    • Theories include expression of many markers versus local modulation of cell surface proteins.
    • Cell adhesion molecules (CAMs) are implicated in cell recognition.

    Purpose of the Study:

    • To investigate the role of local cell surface modulation in cell-cell recognition.
    • To explore the function of specific CAMs in neural development and disorders.

    Main Methods:

    • Identification and characterization of cell adhesion molecules (CAMs) across species and tissues.
    • Analysis of CAM expression and modulation during neural development.
    • Correlation of CAM function with neurological disorders in mutant models.

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    Main Results:

    • Several CAMs identified in various vertebrate tissues, including brain-specific molecules for neurons and glia.
    • A neuron-specific CAM is vital for early embryonic events, neurite fasciculation, and neural tissue organization.
    • This CAM undergoes local surface modulation, including sialic acid loss during development.
    • CAM modulation failure is linked to connectional disorders in the staggerer mouse mutant.

    Conclusions:

    • Data supports cell-cell recognition via local CAM modulation over strict chemoaffinity theories.
    • CAMs play a significant role in neural development and are implicated in neurological disorders.