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Lymphocyte subpopulations in patients with multiple sclerosis.
Journal of Neurology, Neurosurgery, and Psychiatry
|February 1, 1983
Summary
Multiple sclerosis patients in relapse show low cytotoxic/suppressor (OKT8) T-cells, which normalize within a month. These T-cell changes may impact multiple sclerosis pathogenesis and treatment.
Area of Science:
- Immunology
- Neurology
Background:
- Multiple sclerosis (MS) is a chronic inflammatory disease of the central nervous system.
- Understanding lymphocyte subpopulation dynamics is crucial for MS pathogenesis and management.
Purpose of the Study:
- To investigate peripheral blood lymphocyte subpopulations, specifically helper/inducer (OKT4) and cytotoxic/suppressor (OKT8) T-cells, in patients with multiple sclerosis and optic neuritis.
- To correlate T-cell levels with disease activity and progression.
Main Methods:
- Monoclonal antibodies were used to measure OKT4 and OKT8 T-cell levels in normal controls, MS patients, and optic neuritis patients.
- Longitudinal studies were conducted on a subset of individuals over extended periods.
Main Results:
- Patients with active MS relapses exhibited significantly lower OKT8 T-cell levels compared to controls.
- Reduced OKT8 T-cell counts were also observed in patients with isolated optic neuritis and progressive MS.
- T-cell abnormalities normalized within approximately one month of relapse onset and fluctuated with new relapses.
- Subclinical T-cell abnormalities were detected in 25% of patients after demyelination events, without corresponding clinical symptoms.
Conclusions:
- Peripheral blood cytotoxic/suppressor (OKT8) T-cell levels are altered in multiple sclerosis, particularly during relapses.
- These T-cell dynamics may offer insights into the immunopathogenesis of MS and potentially guide therapeutic strategies.
- Monitoring lymphocyte subpopulations could aid in understanding disease activity and response to treatment.