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Phenotypic and Functional Analysis of Activated Regulatory T Cells Isolated from Chronic Lymphocytic Choriomeningitis Virus-infected Mice
Published on: June 22, 2016
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Lymphocyte phenotype and function in the chronic fatigue syndrome
S E Straus1, S Fritz, J K Dale
1Medical Virology Section, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland 20892.
Journal of Clinical Immunology
|January 1, 1993
Summary
Chronic fatigue syndrome (CFS) patients exhibit abnormal T-cell differentiation, with reduced naive T cells and increased memory T cells expressing adhesion molecules. These immune cell changes may stem from neuroendocrine or infectious triggers.
Area of Science:
- Immunology
- Cellular Biology
- Chronic Fatigue Syndrome Research
Background:
- Chronic Fatigue Syndrome (CFS) is a complex condition with poorly understood immune system involvement.
- Previous research suggests potential immune dysregulation in CFS patients.
Purpose of the Study:
- To investigate peripheral blood lymphocyte phenotype and function in patients with CFS and related conditions.
- To identify specific immune cell abnormalities associated with chronic fatigue.
Main Methods:
- Extensive flow cytometry analysis of B-cell, T-cell, NK cell, and macrophage subsets.
- Phenotypic analysis included single-, dual-, and three-color staining.
- Lymphocyte proliferation assays were conducted using various mitogens and superantigens.
Main Results:
- CFS patients showed a reduced percentage of CD4 naive T cells (CD4,CD45RA).
- Memory T cells (CD4,CD45RO) in CFS patients displayed increased adhesion molecule expression (CD29, CD54, CD58).
- Lymphocytes from CFS patients exhibited diminished proliferative responses to common immune stimuli.
Conclusions:
- Peripheral T cells in CFS patients demonstrate an advanced state of differentiation.
- These immune alterations may be linked to underlying neuropsychiatric, neuroendocrine, or infectious factors.
- The findings suggest immune cell phenotyping could aid in understanding CFS pathophysiology.
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