ArticleClinical and experimental immunology2025
Prospective analysis of the number and function of two T regulatory cell subsets in healthy individuals.
Article in Clinical and experimental immunology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
introductionT regulatory (Treg) cells play a crucial role in immune system homeostasis and in the pathogenesis of immune-mediated inflammatory diseases. Accordingly, numerous studies have examined the number and function of these lymphocytes in patients with different conditions as well as in healthy controls. The aim of this study was to analyze potential variations in the number and function of two Treg cell subsets in healthy adults over a 2-month period.
methodsIn a pilot study, blood samples were collected from 20 healthy individuals on Days 0, 30, and 60, and the levels of natural Treg cells (CD4+CD25highFoxp3+) and CD69+ Treg cells (CD4+CD69+CD25-/+LAP+IL-10+Foxp3-) were analyzed by flow cytometry. In addition, the function of these regulatory cells was evaluated using an in vitro assay that measures the inhibition of activation of autologous T lymphocytes.
resultsAlthough no significant differences were observed across the three serial measurements of the number or function of the Treg cells analyzed (P > 0.05 in both cases), a substantial proportion of individuals showed notable changes (either an increase or decrease) in these parameters during the study. These variations were not apparently associated with any factors affecting immune system homeostasis, including infections, medication use, or immunizations.
conclusionOur findings suggest that significant fluctuations of causes to be determined occur in the levels and function of Treg cells in healthy individuals. This phenomenon should be considered in studies investigating immunoregulation in humans.
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