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Immunological dysfunction in Alzheimer's disease.

N Khansari, H D Whitten, Y K Chou

    Journal of Neuroimmunology
    |February 1, 1985
    PubMed
    Summary
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    Alzheimer's patients exhibit significantly reduced interleukin-1 (IL-1) production and autologous rosette-forming cells (ARFC), alongside elevated B-cell glucose metabolism. These findings suggest potential biomarkers for Alzheimer's disease progression and therapeutic targets.

    Area of Science:

    • Immunology
    • Neuroscience
    • Gerontology

    Background:

    • Alzheimer's disease (AD) is a progressive neurodegenerative disorder.
    • Immune system dysregulation is implicated in AD pathogenesis.
    • Interleukin-1 (IL-1) is a key inflammatory cytokine with a potential role in AD.

    Purpose of the Study:

    • To investigate interleukin-1 (IL-1) production in peripheral blood lymphocytes of Alzheimer's patients.
    • To explore correlations between IL-1 levels, clinical symptoms, and specific therapies in AD.
    • To assess other immune cell parameters, such as autologous rosette-forming cells (ARFC) and B-cell glucose metabolism, in AD patients.

    Main Methods:

    • Peripheral blood lymphocytes were isolated from Alzheimer's patients and healthy elderly controls.

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  • Interleukin-1 (IL-1) production by monocytes was measured in vitro.
  • The number of autologous rosette-forming cells (ARFC) was quantified.
  • B-cell glucose metabolism was assessed.

    • Main Results:

    • Alzheimer's patients demonstrated severely low production of IL-1 by peripheral blood monocytes.
    • Low IL-1 production correlated with clinical symptoms and 1-acetamide,2-pyrrolidone (1a,2p) therapy.
    • A significant decrease in autologous rosette-forming cells (ARFC) was observed in all AD patients.
    • B-cell glucose metabolism was significantly higher in AD patients compared to age-matched healthy individuals.

    Conclusions:

    • Reduced IL-1 production and ARFC counts may serve as potential indicators in Alzheimer's disease.
    • Elevated B-cell glucose metabolism presents a novel finding in AD.
    • These immune alterations warrant further investigation for diagnostic and therapeutic implications in Alzheimer's disease.