During the progression of relapsing experimental autoimmune encephalomyelitis (R-EAE), in SJL mice, disease relapses are mediated by T cells specific for non-cross-reactive myelin epitopes, a process termed 'epitope spreading'. CTLA-4, a negative regulator of T cell function modulates R-EAE, in that CTLA-4 blockade exacerbates clinical R-EAE. Herein, we show that CTLA-4-mediated signaling negatively regulates the dynamic spread of autoreactive T cell responses during the course of autoimmune disease. Anti-CTLA-4 mAb, administration at various points during the progression of R-EAE exacerbated subsequent clinical disease and enhanced T cell reactivity to both inducing and relapse-associated epitopes. In addition, CTLA-4 blockade during acute disease inhibited clinical remission. Thus, CTLA-4-mediated events are critical for intrinsic regulation of epitope spreading during autoimmune disease.
This research output has an Altmetric Attention Score of 3. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 29 August 2006.
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#9
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