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2015 ; 5
(ä): 73
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English Wikipedia
Complement C4 induces regulatory T cells differentiation through dendritic cell
in systemic lupus erythematosus
#MMPMID26705467
Cheng HB
; Chen RY
; Wu JP
; Chen L
; Liang YH
; Pan HF
; Pan ZF
; Zhang QH
; Li Q
; Du TX
; Lv YM
; Shi JQ
Cell Biosci
2015[]; 5
(ä): 73
PMID26705467
show ga
BACKGROUND: Systemic lupus erythematosus (SLE) is a prototypic systemic
autoimmune disease. Complement component 4 (C4) has be proved to play a role in
pathogenesis of SLE. In the present study, we investigated the effect of C4 on T
cells differentiation. METHODS: Thirty SLE patients were included in this study.
CD4+ T cells were isolated from healthy subjects, and dendritic cells (DCs) were
isolated from healthy subjects or SLE patients. C4 was supplemented to
co-incubate with T cells and DCs. RESULTS: Serum C4 concentration was positively
correlated with regulatory T cell (Treg) percentage (R(2) = 0.5907, p < 0.001)
and TGF? concentration (R(2) = 0.5641, p < 0.001) in SLE patients. Different
concentrations of C4 had no effect on T cells differentiation. Co-incubated T
cells with DCs and C4 for 7 days, the Treg percentage and TGF-? concentration
were significantly elevated. In addition, pre-treated DCs (from healthy subjects
or SLE patients) with C4 and then co-incubated with T cells, the increases of
Treg percentage and TGF-? concentration were also observed. CONCLUSION: C4 takes
part in T cells differentiation to Treg cells via DCs.