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Immune function in patients with chromosome deletions

T Nurmi, M Uhari, S L Linna

    Clinical and Experimental Immunology
    |April 1, 1982
    PubMed
    Summary
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    Chromosomal deletions, including autosomal and X-chromosome types, are linked to immune system abnormalities. Patients experienced increased infections and mild immunological disturbances, highlighting the impact of genetic deletions on immune function.

    Area of Science:

    • Immunology
    • Genetics
    • Human Physiology

    Background:

    • Chromosomal deletions can affect various bodily functions.
    • Understanding the impact of genetic abnormalities on the immune system is crucial for diagnosing and managing related disorders.

    Purpose of the Study:

    • To evaluate non-specific, cell-mediated, and humoral immunity in patients with autosomal and X-chromosome deletions.
    • To identify specific immunological disturbances associated with different chromosomal deletions.

    Main Methods:

    • Assessed immune responses in six patients with autosomal deletions and two with X-chromosome deletions.
    • Evaluated granulocyte function, chemotaxis, lymphocyte proliferation (PHA, PWM, ConA), and antibody titers.
    • Measured serum immunoglobulin (IgA, IgM) and complement (C3, C4) levels, and antibody presence (antinuclear, antithyroid).

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    Main Results:

    • Most patients exhibited mild immunological function disturbances and an increased incidence of bacterial, viral, and mycotic infections.
    • Granulocyte phagocytosis and bacterial killing were normal; chemotaxis was mostly normal.
    • Lymphocyte responses to purified protein derivative were decreased, while responses to phytohaemagglutinin, pokeweed mitogen, and oidiomycin were largely normal. One patient had decreased concanavalin A response.
    • Abnormalities in immunoglobulin and complement levels, and presence of autoantibodies were observed in some patients.

    Conclusions:

    • Several types of chromosomal deletions are associated with immunological abnormalities.
    • These genetic variations can lead to a range of immune system dysfunctions, increasing susceptibility to infections.