- Arch Med Sci
- v.9(3); Jun 20, 2013
- PMC3701966
Arch Med Sci. 2013 June 20; 9(3): 555–560.
Published online 2012 October 30. doi: 10.5114/aoms.2012.31387
PMCID: PMC3701966
Expression of IL-7 receptor in human peripheral regulatory T cells
Abstract
Introduction
Regulatory T cells (Tregs, CD4 + CD25high Foxp3+) play a crucial role in allergy and other inflammatory diseases. However, the isolation of viable Tregs on the basis of intracellular expression of specific Forkhead Box Protein P3 (Foxp3) is difficult. In this study we checked if the expression of IL-7 receptor (CD127) on the Tregs could be a useful marker for isolation of viable Treg Foxp3+ cells.
Material and methods
Twenty-five patients sensitized to grass pollen with allergic rhinitis (AR) and ten healthy subjects were included. We compared Foxp3 expression in different CD4+ T cell subsets by flow cytometry and we assessed the relationship between the expression of Foxp3 and CD127 within regulatory T cells.
Results
Within the CD4+ lymphocytes 3.68 ±2.0% showed expression of Foxp3, 51.82 ±8.03% of CD4+CD25highwere Foxp3 positive (Foxp3+), whereas 82.12 ±5.4% of CD4+CD25highCD127low were Foxp3+. High intracellular expression of Foxp3 correlated with low superficial CD127 expression (r = 0.42, p = 0.017). There were no significant differences regarding the analysed markers between AR patients and healthy controls.
Conclusions
Regulatory T cells may be purified from the fresh peripheral blood as viable regulatory Foxp3 bright cells using CD4, high expression of CD25 and low expression of CD127 antigen.
Keywords: allergy, cytokines, inflammation, rhinitis, regulatory lymphocytes
No comments:
Post a Comment