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2016 ; 64
(5
): 399-407
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CD4(+)CD25(+)CD127(-) and CD4(+)CD25(+)Foxp3(+) Regulatory T Cell Subsets in
Mediating Autoimmune Reactivity in Systemic Lupus Erythematosus Patients
#MMPMID27156107
?abi?ska M
; Krajewska M
; Ko?cielska-Kasprzak K
; Jakuszko K
; Bartoszek D
; Myszka M
; Klinger M
Arch Immunol Ther Exp (Warsz)
2016[Oct]; 64
(5
): 399-407
PMID27156107
show ga
The available clinical as well as experimental studies implicate participation of
T regulatory (Treg) subsets in the pathogenesis and course of systemic lupus
erythematosus (SLE). Introduction of the CD4(+)CD25(+)CD127(-) and
CD4(+)CD25(+)Foxp3(+) regulatory subpopulations analysis into immunological
processes assessment and disease activation prognosis in patients with lupus
nephritis (LN) may improve monitoring of disease activity and enable an early,
and thus more effective, therapeutic treatment. The main goal of the study was to
investigate whether the quantitative changes of Treg subpopulations are related
to the clinical status of patients with LN. Fifty-four adult SLE patients divided
into two groups according to their SLEDAI and renal SLEDAI scores were enrolled
into the study. Subpopulations of CD4(+)CD25(+)CD127(-) and CD4(+)CD25(+)Foxp3(+)
phenotypes were determined by flow cytometry. The control group had higher
absolute number of CD4(+)CD25(+)Foxp3(+) cells compared with the study group
(p < 0.001). Also, significant inverse correlation in the absolute number of
CD4(+)CD25(+)Foxp3(+) cells and SLEDAI score was observed. There were significant
differences in the percentage and absolute number of CD4(+)CD25(+)Foxp3(+)
lymphocytes between active and non-active LN groups. The study group had
statistically lower values of CD4(+)CD25(+)CD127(-) cells, both in the percentage
(p < 0.001) as well as their absolute number (p = 0.014) compared to the control
group. There were also statistically significant positive correlations between
the absolute number of CD4(+)CD25(+)CD127(-) and CD4(+)CD25(+)Foxp3(+) Tregs. IN
CONCLUSION: (1) reduction in the number of regulatory CD4(+)CD25(+)Foxp3(+) cells
is a promising indicator of the activity of SLE, particularly of renal
involvement; (2) determination of the number of regulatory cells using the
CD4(+)CD25(+)CD127(-) phenotype is unreliable in patients with SLE.