期刊
JOURNAL OF IMMUNOLOGY
卷 181, 期 9, 页码 6038-6050出版社
AMER ASSOC IMMUNOLOGISTS
DOI: 10.4049/jimmunol.181.9.6038
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资金
- NIAID NIH HHS [R01 AI043458-08, AI435801, R01 AI043458] Funding Source: Medline
- NINDS NIH HHS [NS38037, P01 NS038037] Funding Source: Medline
Lupus is an Ab-mediated autoimmune disease. One of the potential contributors to the development of systemic lupus erythematosus is a defect in naturally occurring CD4(+)CD25(+) regulatory T cells. Thus, the generation of inducible regulatory T cells that can control autoantibody responses is a potential avenue for the treatment of systemic lupus erythematosus. We have found that nasal administration of anti-CD3 mAb attenuated lupus development as well as arrested ongoing lupus in two strains of lupus-prone mice. Nasal anti-CD3 induced a CD4(+)CD25(-)latency-associated peptide (LAP)(+) regulatory T cell that secreted high levels of IL-10 and suppressed disease in vivo via IL-10- and TFG-beta-dependent mechanisms. Disease suppression also occurred following adoptive transfer of CD4(+) CD25(-)LAP(+) regulatory T cells from nasal anti-CD3-treated animals to lupus-prone mice. Animals treated with nasal anti-CD3 had less glomerulonephritis and diminished levels of autoantibodies as measured by both ELISA and autoantigen microarrays. Nasal anti-CD3 affected the function of CD4(+)ICOS(+)CXCR5(+) follicular helper T cells that are required for autoantibody production. CD4(+)ICOS(+) CXCR5(+) folticular helper T cells express high levels of IL-17 and IL-21 and these cytokines were down-regulated by nasal anti-CD3. Our results demonstrate that nasal anti-CD3 induces CD4(+)CD25(-)LAP(+) regulatory T cells that suppress lupus in mice and that it is associated with down-regulation of T cell help for autoantibody production. The Journal of Immunology, 2008, 181: 6038-6050.
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