Vasoactive Intestinal Polypeptide Suppressed Experimental Autoimmune Encephalomyelitis by Inhibiting T Helper 1 Responses |
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| Authors: | Haiyan Li Yunhua Mei Ying Wang Lingyun Xu |
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| Institution: | (1) Shanghai Institute of Immunology, Shanghai Jiao Tong University Medical School, Shanghai, P. R. China;(2) Institute of Health Sciences, Shanghai Jiao Tong University/Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, P. R. China;(3) Shanghai Institute of Immunology, Shanghai Jiao Tong University Medical School, Building I Room 308, 225 South Chongqing Road, Shanghai, 200025, P. R. China |
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| Abstract: | Vasoactive intestinal peptide (VIP) has been found to act as a potent anti-inflammatory factor through regulating the production of both anti- and pro-inflammatory mediators and promoting Th2-type responses. In this study, we used myelin oligodendrocyte glycoprotein-induced experimental autoimmune encephalomyelitis (EAE) model in C57BL/6 mice to investigate the potential effects of VIP on multiple sclerosis. Our results showed that in vivo treatment of EAE-induced mice with VIP had great protective benefit at both clinical and histological levels. Disease suppression was associated with the inhibition of T cells proliferation, shifting of the immune response toward a Th2-type response and influencing the expression of pro-inflammatory cytokines including IFN-γ, IL-6 and IL-2 as well as chemotactic factors such as RANTES. In conclusion, the study provides evidence that VIP had great protective effect on EAE through its inhibition actions on pathogenic T cells and through a specific effect on the Th1 response.Haiyan Li and Yunhua Mei contributed equally to this work |
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| Keywords: | Vasoactive intestinal polypeptide experimental autoimmune encephalomyelitis T helper 1 cells |
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