Title |
Complement C4 induces regulatory T cells differentiation through dendritic cell in systemic lupus erythematosus
|
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Published in |
Cell & Bioscience, December 2015
|
DOI | 10.1186/s13578-015-0052-8 |
Pubmed ID | |
Authors |
Hong-Bin Cheng, Rong-Yi Chen, Jing-Ping Wu, Li Chen, Yan-Hua Liang, Hai-Feng Pan, Zi-Feng Pan, Qing-Hua Zhang, Qing Li, Tian-Xi Du, Yong-Mei Lv, Jian-Qiang Shi |
Abstract |
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. 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. Serum C4 concentration was positively correlated with regulatory T cell (Treg) percentage (R(2) = 0.5907, p < 0.001) and TGFβ 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-β 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-β concentration were also observed. C4 takes part in T cells differentiation to Treg cells via DCs. |
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