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Popov I, Li M, Zheng X, San H, Zhang X, Ichim TE, Suzuki M, Feng B, Vladau C, Zhong R, Garcia B, Strejan G, Inman RD, Min WP. Preventing autoimmune arthritis using antigen-specific immature dendritic cells: a novel tolerogenic vaccine. Arthritis Res Ther 2007; 8:R141. [PMID: 16911769 PMCID: PMC1779442 DOI: 10.1186/ar2031] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2006] [Revised: 07/18/2006] [Accepted: 08/15/2006] [Indexed: 01/08/2023] Open
Abstract
Conventional treatments for autoimmune diseases have relied heavily on nonspecific immune suppressants, which possess a variety of adverse effects without inhibiting the autoimmune process in a specific manner. In the present study we demonstrate the effectiveness of antigen-specific, maturation-resistant, tolerogenic dendritic cells (DC) in suppressing collagen-induced arthritis, a murine model of rheumatoid arthritis. Treatment of DC progenitors with the NF-κB inhibiting agent LF 15-0195 (LF) resulted in a population of tolerogenic DC that are characterized by low expression of MHC class II, CD40, and CD86 molecules, as well as by poor allostimulatory capacity in a mixed leukocyte reaction. Administering LF-treated DC pulsed with keyhole limpet hemocyanin antigen to naïve mice resulted hyporesponsiveness specific for this antigen. Furthermore, administration of LF-treated DC to mice with collagen-induced arthritis resulted in an improved clinical score, in an inhibited antigen-specific T-cell response, and in reduced antibody response to the collagen. The efficacy of LF-treated DC in preventing arthritis was substantiated by histological examination, which revealed a significant decrease in inflammatory cell infiltration in the joints. In conclusion, we demonstrate that in vitro-generated antigen-specific immature DC may have important potential as a tolerogenic vaccine for the treatment of autoimmune arthritis.
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Affiliation(s)
- Igor Popov
- Department of Surgery, Microbiology and Immunology, and Pathology, London Health Science Centre, London, Canada
| | - Mu Li
- Department of Surgery, Microbiology and Immunology, and Pathology, London Health Science Centre, London, Canada
| | - Xiufen Zheng
- Department of Surgery, Microbiology and Immunology, and Pathology, London Health Science Centre, London, Canada
| | - Hongtao San
- Department of Surgery, Microbiology and Immunology, and Pathology, London Health Science Centre, London, Canada
| | - Xusheng Zhang
- Department of Surgery, Microbiology and Immunology, and Pathology, London Health Science Centre, London, Canada
| | - Thomas E Ichim
- Department of Surgery, Microbiology and Immunology, and Pathology, London Health Science Centre, London, Canada
| | - Motohiko Suzuki
- Department of Surgery, Microbiology and Immunology, and Pathology, London Health Science Centre, London, Canada
| | - Biao Feng
- Department of Surgery, Microbiology and Immunology, and Pathology, London Health Science Centre, London, Canada
| | - Costin Vladau
- Department of Surgery, Microbiology and Immunology, and Pathology, London Health Science Centre, London, Canada
| | - Robert Zhong
- Department of Surgery, Microbiology and Immunology, and Pathology, London Health Science Centre, London, Canada
- Multi-Organ Transplant Program, London Health Science Centre, London, Canada
- Immunology and Transplantation, Lawson Health Research Institute, London, Canada
- Robarts Research Institute, London, Canada
| | - Bertha Garcia
- Department of Surgery, Microbiology and Immunology, and Pathology, London Health Science Centre, London, Canada
- Immunology and Transplantation, Lawson Health Research Institute, London, Canada
| | - Gill Strejan
- Department of Surgery, Microbiology and Immunology, and Pathology, London Health Science Centre, London, Canada
| | - Robert D Inman
- Division of Rheumatology, Department of Medicine, Toronto Western Hospital, University Health Network, Toronto, Canada
| | - Wei-Ping Min
- Department of Surgery, Microbiology and Immunology, and Pathology, London Health Science Centre, London, Canada
- Multi-Organ Transplant Program, London Health Science Centre, London, Canada
- Immunology and Transplantation, Lawson Health Research Institute, London, Canada
- Robarts Research Institute, London, Canada
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