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Defective immunoregulation in multiple sclerosis

J M Goust, P M Hoffman, J Pryjma

    Annals of Neurology
    |November 1, 1980
    PubMed
    Summary
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    Multiple sclerosis (MS) involves T cell imbalances, with specific subsets inversely correlating in patients. These T cell changes impact immunoglobulin production by B cells, suggesting B cell hyperactivity in MS.

    Area of Science:

    • Immunology
    • Neuroimmunology
    • Cellular Immunology

    Background:

    • T cell subpopulation imbalances are implicated in multiple sclerosis (MS).
    • Specific T cell subsets, including those expressing Fc receptors for IgG (Tg) and binding to Raji B cells, show altered percentages in MS patients.

    Purpose of the Study:

    • To investigate the relationship between T cell subset alterations and B cell function in multiple sclerosis.
    • To explore the functional consequences of altered T cell populations on immunoglobulin production in MS.

    Main Methods:

    • Analysis of T cell subsets (Tg and Raji B cell binding) in 31 MS patients.
    • Assessment of mitogenic responses of mononuclear cells, isolated T cells, and T/non-T cell recombinations.
    • Evaluation of immunoglobulin production by B cells in response to T cell co-culture.

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    Main Results:

    • Increased Tg T cells and decreased Raji B cell-binding T cells were observed in chronic progressive MS, with an inverse correlation between these subsets.
    • While mitogenic responses were normal, MS cells generated more immunoglobulin-producing cells than controls.
    • MS T cells modulated normal B cell immunoglobulin production based on Tg percentage, with higher Tg suppressing and lower Tg helping Ig production.

    Conclusions:

    • Altered T cell subsets in MS correlate with functional changes in modulating B cell immunoglobulin production.
    • Multiple sclerosis B cells appear to partially escape T cell regulation, indicating potential B cell hyperactivity.