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Mast cells in cutaneous inflammatory disorders.

N A Soter

    The Journal of Investigative Dermatology
    |June 1, 1983
    PubMed
    Summary

    Skin mast cells release mediators that cause biphasic responses. Uncontrolled responses can lead to urticaria/angioedema or chronic inflammatory skin diseases like necrotizing vasculitis.

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    Area of Science:

    • Dermatology
    • Immunology
    • Pathology

    Background:

    • Mast cells in skin are strategically located near blood vessels.
    • Their activation releases diverse bioactive molecules impacting the microenvironment.
    • These mediators orchestrate a biphasic inflammatory response.

    Purpose of the Study:

    • To elucidate the role of mast cell mediators in skin inflammation.
    • To understand the progression from acute reactions to chronic tissue injury.
    • To explore mast cell involvement in conditions like urticaria and necrotizing vasculitis.

    Main Methods:

    • Review of mast cell mediator functions and inflammatory pathways.
    • Analysis of clinical manifestations and histologic findings in skin diseases.
    • Utilizing human experimental models of physical urticaria.

    Main Results:

    • Mast cell mediators drive initial vascular permeability changes (humoral phase).
    • Chemotactic factors attract leukocytes, initiating the cellular phase.
    • Failure to control these phases can result in urticaria/angioedema or necrotizing vasculitis.

    Conclusions:

    • Mast cells are central to acute and chronic inflammatory skin conditions.
    • Dysregulation of mast cell mediator release contributes to disease progression.
    • Understanding these mechanisms is crucial for managing inflammatory skin diseases.

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