Impact of CD200-Fc on dendritic cells in lupus-prone NZB/WF1 mice
- Peking Union Medical College Hospital, Beijing (China). Key Lab. of Rheumatology & Clinical Immunology, Dept. of Rheumatology & Clinical Immunology; Chinese Academy of Medical Science (CAS), Beijing (China). Clinical Immunology Center; none
- Peking Union Medical College Hospital, Beijing (China). Key Lab. of Rheumatology & Clinical Immunology, Dept. of Rheumatology & Clinical Immunology; Chinese Academy of Medical Science (CAS), Beijing (China). Clinical Immunology Center
Abnormal expression of CD200/CD200R1 may contribute to the immunologic abnormalities in patients with systemic lupus erythematosus (SLE). This study aimed to assess the function of CD200/CD200R1and impact of CD200-Fc on dendritic cells in lupus-prone NZB/WF1 mice. Female NZB/WF1 mice were treated with CD200-Fc or control for 4 weeks. Plasma samples were collected to measure autoantibody levels. The expression levels of CD200/CD200R1 in peripheral blood mononuclear cells (PBMCs) and splenocytes were examined. The percentage of CD200/CD200R1-positive cells in splenocytes from NZB/WF1 mice was lower than that of C57BL/6 mice (p<0.05). The plasma level of anti-dsDNA was significantly higher in NZB/WF1 mice than C57BL/6 mice (p<0.001). However, the anti-dsDNA levels decreased (p=0.047) after CD200-Fc treatment. Finally, CD200-Fc reduced the levels of IL-6 (p=0.017) and IL-10 (p=0.03) in the dendritic cell culture supernatant. This study suggests that the immunosuppressive CD200/CD200R1 signaling pathway might be involved in the immunopathology of NZB/WF1 mice; the present results merit further exploration of agents that can modulate the CD200/CD200FR1 pathway as a therapy for human lupus.
- Research Organization:
- Washington Univ., St. Louis, MO (United States)
- Sponsoring Organization:
- Beijing Municipal Natural Science Foundation; National Natural Science Foundation of China; USDOE
- Grant/Contract Number:
- SC0001035
- OSTI ID:
- 1326665
- Journal Information:
- Scientific Reports, Journal Name: Scientific Reports Vol. 6; ISSN 2045-2322
- Publisher:
- Nature Publishing GroupCopyright Statement
- Country of Publication:
- United States
- Language:
- English
The Role of Immune Checkpoint Receptors in Regulating Immune Reactivity in Lupus
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