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Related Experiment Videos

Desmosomes in pemphigus vegetans.

T Higashida, H Hino, T Kobayasi

    Acta Dermato-Venereologica
    |January 1, 1981
    PubMed
    Summary

    Pemphigus vegetans significantly reduces desmosome count and alters their structure in skin cells. These findings reveal critical ultrastructural defects in desmosomes, impacting cell adhesion in this condition.

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    Area of Science:

    • Dermatology
    • Cell Biology
    • Pathology

    Background:

    • Pemphigus vegetans is a rare autoimmune blistering disease.
    • Desmosomes are crucial intercellular junctions for skin integrity.
    • Understanding desmosome pathology is key to pemphigus vegetans research.

    Observation:

    • Electron microscopy revealed fewer desmosomes in pemphigus vegetans patients compared to healthy controls.
    • Pathological ultrastructures observed include absent median lines and single-sided attachment plaques.
    • Thickened cell membranes and direct cell-to-cell contact were noted in affected skin.

    Findings:

    • Quantitative analysis (morphometry) confirmed reduced desmosome density.
    • Qualitative analysis identified significant ultrastructural abnormalities in desmosomes.
    • These desmosomal defects were more pronounced in lesional skin than in unaffected skin.

    Implications:

    • The study suggests defective desmosome formation or deterioration in pemphigus vegetans.
    • These cellular changes likely contribute to the characteristic skin lesions.
    • Further research into desmosome biology may offer therapeutic targets for pemphigus vegetans.

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