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Related Experiment Videos

Circulating CD3+ CD4+ CD8+ T lymphocytes in multiple sclerosis

F E Munschauer1, C Stewart, L Jacobs

  • 1Baird Multiple Sclerosis Research Center, Department of Neurology, State University of New York, Buffalo.

Journal of Clinical Immunology
|March 1, 1993
PubMed
Summary

Untreated multiple sclerosis (MS) patients show higher levels of circulating T cells expressing CD3, CD4, and CD8 markers. Corticosteroid treatment may reduce this specific T cell population in MS patients.

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Area of Science:

  • Immunology
  • Neuroimmunology
  • Flow Cytometry

Background:

  • Multiple sclerosis (MS) is a chronic autoimmune disease affecting the central nervous system.
  • Distinctive peripheral blood lymphocyte immunophenotypes may be present in MS patients.
  • T cell subsets play a crucial role in immune responses and autoimmune conditions.

Purpose of the Study:

  • To identify unique peripheral blood lymphocyte immunophenotypes in multiple sclerosis (MS) patients.
  • To investigate the presence of CD3+CD4+CD8+ T cells in MS and other autoimmune diseases.
  • To assess the effect of corticosteroid treatment on these T cell populations.

Main Methods:

  • Triple-antibody flow cytometry was employed to analyze T cell subsets.
  • Monoclonal antibodies against CD3, CD4, and CD8 surface markers were used.

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  • Peripheral blood lymphocytes were quantified in MS patients, healthy donors, and patients with other autoimmune diseases.

    • Main Results:

    • Untreated MS patients exhibited a significantly higher population of CD3+CD4+CD8+ circulating T cells compared to healthy donors (P = 0.023).
    • Patients with other autoimmune diseases showed intermediate levels of CD3+CD4+CD8+ cells, not significantly different from MS or healthy groups.
    • Corticosteroid therapy in MS patients was associated with a reduced population of circulating CD3+CD4+CD8+ T cells.

    Conclusions:

    • A subset of MS patients displays an elevated number of peripheral blood T lymphocytes simultaneously expressing CD3, CD4, and CD8.
    • This triple-positive T cell phenotype may indicate a systemic immune abnormality in MS.
    • Corticosteroid treatment appears to decrease the abundance of this specific T cell population in MS.