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Circulating immune complexes in neurologic disease

A B Noronha, J P Antel, R P Roos

    Neurology
    |November 1, 1981
    PubMed
    Summary
    This summary is machine-generated.

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    Immune complexes were elevated in some multiple sclerosis (MS), amyotrophic lateral sclerosis (ALS), and subacute sclerosing panencephalitis (SSPE) patients, but not myasthenia gravis (MG) patients. These elevations, detected by various assays, correlated with disease activity in MS.

    Area of Science:

    • Immunology
    • Neurology

    Background:

    • Immune complexes are implicated in various autoimmune and neurological disorders.
    • Assessing immune complex levels can aid in understanding disease pathogenesis.

    Purpose of the Study:

    • To investigate the presence and levels of immune complexes in patients with multiple sclerosis (MS), amyotrophic lateral sclerosis (ALS), subacute sclerosing panencephalitis (SSPE), and myasthenia gravis (MG).
    • To correlate immune complex levels with disease activity and other immunological markers.

    Main Methods:

    • Sera from patients with MS, ALS, SSPE, and MG were analyzed for immune complexes.
    • Three distinct assay techniques were employed: a modified Raji cell assay, the 125I-Clq polyethyleneglycol assay, and a solid-phase C1q assay.
    • Levels were compared to controls and active systemic lupus erythematosus (SLE).

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    Main Results:

    • Elevated immune complex levels were observed in some patients with MS, ALS, and SSPE, though generally modest compared to active SLE.
    • Assay results varied, with abnormalities detected by one or multiple methods in different patients.
    • In MS, increased immune complexes correlated with active disease and reduced suppressor cell activity.
    • One of two ALS patients with prior poliomyelitis showed significantly elevated immune complexes.
    • No significant difference in immune complex levels was found in MG patients compared to controls.

    Conclusions:

    • Immune complex detection may offer insights into the pathophysiology of certain neurological conditions like MS, ALS, and SSPE.
    • The sensitivity of detection can depend on the assay system used.
    • Further research is warranted to elucidate the specific role of immune complexes in these diseases.