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Cheng HB, Chen RY, Wu JP, Chen L, Liang YH, Pan HF, Pan ZF, Zhang QH, Li Q, Du TX, Lv YM, Shi JQ. Complement C4 induces regulatory T cells differentiation through dendritic cell in systemic lupus erythematosus. Cell Biosci 2015; 5:73. [PMID: 26705467 PMCID: PMC4690337 DOI: 10.1186/s13578-015-0052-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2015] [Accepted: 10/28/2015] [Indexed: 01/08/2023] Open
Abstract
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 (R2 = 0.5907, p < 0.001) and TGFβ concentration (R2 = 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. Conclusion C4 takes part in T cells differentiation to Treg cells via DCs.
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Affiliation(s)
- Hong-Bin Cheng
- Teaching Hospital of Chengdu University of TCM, Chengdu, 610072 Sichuan China
| | - Rong-Yi Chen
- Department of Dermatology, Affiliated Hospital of Guangdong Medical College, No.57 Peoples Avenue South, Zhanjiang, 524001 Guangdong China
| | - Jing-Ping Wu
- Teaching Hospital of Chengdu University of TCM, Chengdu, 610072 Sichuan China
| | - Li Chen
- Laboratory Animal Center, Anhui Medical University, Hefei, 230032 Anhui China
| | - Yan-Hua Liang
- Department of Dermatology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515 Guangdong China
| | - Hai-Feng Pan
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, 230032 Anhui China
| | - Zi-Feng Pan
- Department of Dermatology, Affiliated Hospital of Guangdong Medical College, No.57 Peoples Avenue South, Zhanjiang, 524001 Guangdong China
| | - Qing-Hua Zhang
- Department of Dermatology, Affiliated Hospital of Guangdong Medical College, No.57 Peoples Avenue South, Zhanjiang, 524001 Guangdong China
| | - Qing Li
- Department of Dermatology, The Second Affiliated Hospital, Anhui Medical University Hefei, 678 Furong Road, Hefei, 230601 Anhui China
| | - Tian-Xi Du
- Laboratory Animal Center, Anhui Medical University, Hefei, 230032 Anhui China
| | - Yong-Mei Lv
- Department of Dermatology, The Second Affiliated Hospital, Anhui Medical University Hefei, 678 Furong Road, Hefei, 230601 Anhui China
| | - Jian-Qiang Shi
- Department of Dermatology, Affiliated Hospital of Guangdong Medical College, No.57 Peoples Avenue South, Zhanjiang, 524001 Guangdong China
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