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Factors affecting epithelial interactions.

M Stoker, E Gherardi

    Ciba Foundation Symposium
    |January 1, 1987
    PubMed
    Summary
    This summary is machine-generated.

    Embryonic fibroblasts release a protein, termed epithelial scatter factor, that causes epithelial cells to separate. This factor may play a role in embryonic development and tissue remodeling.

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    Area of Science:

    • Cell Biology
    • Developmental Biology
    • Biochemistry

    Background:

    • Epithelial cells form critical barriers and tissues through cell-cell adhesion.
    • Understanding the regulation of epithelial interactions is key to developmental processes.

    Purpose of the Study:

    • To identify and characterize endogenous factors regulating epithelial cell interactions.
    • To investigate the molecular mechanisms underlying epithelial cell separation.

    Main Methods:

    • Cell culture assays using human mammary cells and MDCK cells.
    • Biochemical characterization of the active protein, including heat lability and molecular weight determination via gel filtration.
    • Assay development to quantify the scatter factor activity.

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    Main Results:

    • Cultured embryonic fibroblasts release a heat-labile proteinaceous factor.
    • This factor, termed 'epithelial scatter factor', causes loss of junctional attachment and separation of epithelial cells.
    • The factor has an approximate molecular mass of 50,000 Da and affects cell morphology and movement.

    Conclusions:

    • Epithelial scatter factor is a novel agent released by fibroblasts that disrupts epithelial cell adhesion.
    • The factor's properties suggest a role in morphogenetic events during embryonic development.
    • Further research is needed to elucidate its precise mechanism of action and potential roles in disease.