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HLA types and immunity in multiple sclerosis.

B R Visscher, L W Myers, G W Ellison

    Neurology
    |December 1, 1979
    PubMed
    Summary
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    Multiple sclerosis patients often have the DRw2 antigen and altered immune responses, particularly to measles. This suggests a potential link between measles virus and the cause of multiple sclerosis.

    Area of Science:

    • Immunogenetics
    • Virology
    • Neurology

    Background:

    • Multiple sclerosis (MS) is a chronic neurological disease.
    • The etiology of MS is not fully understood, but immune system dysregulation is implicated.
    • Human Leukocyte Antigen (HLA) types are associated with various autoimmune diseases.

    Purpose of the Study:

    • To investigate the association between HLA types and immune responses in multiple sclerosis patients.
    • To explore the relationship between specific immune responses and the presence of the DRw2 antigen in MS.
    • To examine potential viral triggers, such as measles, in the pathogenesis of MS.

    Main Methods:

    • A large cohort of multiple sclerosis patients and controls were analyzed.
    • Human Leukocyte Antigen (HLA) typing was performed.

    Related Experiment Videos

  • Humoral (antibody titers) and cell-mediated immune responses to various antigens (measles, cytomegalovirus, herpes simplex viruses) were assessed.

    • Main Results:

    • Patients with multiple sclerosis were significantly more likely to possess the DRw2 antigen compared to controls.
    • MS patients exhibited higher antibody titers to measles but not to other tested viruses.
    • Cell-mediated immune responses were less effective in MS patients overall.
    • Interestingly, patients with the DRw2 antigen showed lower measles antibody titers and more effective cell-mediated immunity than DRw2-negative MS patients.

    Conclusions:

    • The findings suggest a potential association between the DRw2 antigen, immune responses to measles, and the development of multiple sclerosis.
    • The observed specificity for measles points towards a possible role of measles virus or related agents in the etiology of MS.
    • Further research is warranted to elucidate the precise mechanisms linking viral infections, immune responses, and MS pathogenesis.