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Related Experiment Videos

Epidermal antigens in lichen planus.

E Abell, D Ramnarain

    The British Journal of Dermatology
    |June 1, 1975
    PubMed
    Summary

    Loss of basement membrane and intercellular antigens in the epidermis is linked to skin conditions. This study found antigen loss in lichen planus, but not lupus or eczema, suggesting it

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    Immunocytochemistry in dermatopathology : methodology.

    Indian journal of dermatology, venereology and leprology·2010

    Area of Science:

    • Dermatology and immunology, focusing on epidermal antigens.

    Background:

    • Loss of intercellular and basement membrane antigens is linked to epidermal dysplasia and neoplasia.
    • Investigating epidermal antigenic components is crucial for understanding skin pathologies.

    Purpose of the Study:

    • To investigate the presence and distribution of intercellular and basement membrane antigens in lichen planus, lupus erythematosus, and eczema.
    • To determine if antigen loss is specific to neoplastic conditions.

    Main Methods:

    • Utilized indirect immunofluorescence staining.
    • Employed pemphigoid and pemphigus sera to detect specific antigens.
    • Examined tissue samples from patients with lichen planus, lupus erythematosus, and eczema.

    Main Results:

    • Extensive reduction or absence of basement membrane antigen observed in active lichen planus.
    • Intercellular antigen was generally preserved in lichen planus, with some reduction in damaged areas.
    • Both basement membrane and intercellular antigens were well preserved in lupus erythematosus and eczema.

    Conclusions:

    • Loss of epithelial antigens, particularly basement membrane antigen, is not exclusive to neoplasia.
    • Findings indicate that antigen loss patterns differ across various inflammatory dermatoses.
    • Epidermal antigen analysis provides insights into the pathogenesis of conditions like lichen planus.

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