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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Induction of antigen-specific tolerance for the treatment of ongoing, relapsing autoimmune encephalomyelitis: a comparison between oral and peripheral tolerance.

Experimental autoimmune encephalomyelitis (EAE) is a T cell-mediated autoimmune demyelinating disease of the central nervous system that serves as an animal model for multiple sclerosis. Various forms of Ag-specific tolerance have been used prophylactically to prevent development of acute EAE. Here we compare the induction of Ag-specific tolerance using two regimens, proteolipid protein 139-151 (PLP139-151) peptide-coupled splenocytes and oral administration of PLP139-151, for efficacy in the reduction of established, chronic clinical EAE. PLP139-151-coupled splenocytes and not oral administration of PLP139-151 was able to down-regulate established EAE, including subsequent relapses. PLP139-151 peptide- coupled splenocytes were effective at reducing Ag-specific T cell proliferation and IL-2 and IFN-gamma production, while concomitantly increasing IL-4 production. Oral administration of PLP139-151 did not reduce IL-2 or IFN-gamma production and appeared to increase Ag-specific T cell proliferation. Neither multiple high nor low doses of PLP139-151 were effective at decreasing ongoing clinical EAE or PLP139-151-specific IL-2 and IFN-gamma production. These results suggest that PLP139-151 peptide-induced tolerance is an efficacious treatment for ongoing, R-EAE when the peptide is coupled to chemically fixed splenocytes and not when given orally.[1]


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