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  • Title: Treatment of relapsing autoimmune encephalomyelitis with T cell receptor V beta-specific antibodies when proteolipid protein is the autoantigen.
    Author: Whitham RH, Wingett D, Wineman J, Mass M, Wegmann K, Vandenbark A, Offner H.
    Journal: J Neurosci Res; 1996 Jul 15; 45(2):104-16. PubMed ID: 8843028.
    Abstract:
    Monoclonal antibodies (mAbs) directed against the V beta chain of the T cell receptor (TCR) of pathogenic T cells have been used to treat acute murine experimental autoimmune encephalomyelitis (EAE) induced by myelin basic protein (BP). We evaluated anti-V beta mAb for the treatment of relapsing EAE (R-EAE) induced in SJL/J mice by the myelin proteolipid protein (PLP) peptide 139-151. Spinal cord mononuclear cells isolated from mice immunized for R-EAE with PLP 139-151 were shown to express a predominance of V beta 2 and V beta 17 during acute and relapsing disease. T cell lines specific for PLP 139-151 were magnetically sorted to express 80-90% V beta 2. These V beta 2-enriched lines induced typical relapsing demyelinating EAE in naive recipient mice. SJL/J mice with R-EAE induced by a PLP 139-151-specific T cell line expressing 88% V beta 2 were treated with anti-V beta 2 mAb. Anti-V beta 2 mAb markedly reduced clinical and histological disease severity when given at the time of cell transfer or when given at clinical disease onset. In contrast, anti-V beta mAbs showed only a mild clinical effect on R-EAE induced by immunization with PLP 139-151 or R-EAE transferred by a PLP 139-151-specific T cell line expressing multiple V beta s. A cocktail of mAbs directed against V beta 2, V beta 4, and V beta 17 significantly reduced the numbers of spinal cord T cells expressing these V beta s during acute EAE but had little effect on disease course, suggesting that pathogenic T cells expressing other V beta s were producing disease. These findings may have implications for the treatment of multiple sclerosis with V beta-selective therapy.
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