| Literature DB >> 15748949 |
Guang-Xian Zhang1, Shuo Yu, Yonghai Li, Elvira S Ventura, Bruno Gran, Abdolmohamad Rostami.
Abstract
The central role of T cells in the induction of tolerance to autoantigens has been well documented. However, the role of antigen-presenting cells (APCs) in this process is not yet fully understood. To better understand the contribution of APCs in tolerance, we studied the interaction of purified APCs and CD4(+) T cells in a model of intravenous (i.v.) tolerance to experimental autoimmune encephalomyelitis (EAE). As expected, we found that T cells were tolerized to the autoantigen after i.v. injection. However, purified APCs obtained from MOG-i.v.-treated mice were paradoxically immuno-stimulatory, as they induced a non-specific Th1-type response both in vitro and in vivo. We conclude that blocking such APC activation would enhance the effectiveness of tolerance induction.Entities:
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Year: 2005 PMID： 15748949 DOI： 10.1016/j.jneuroim.2004.12.017
Source DB: PubMed Journal: J Neuroimmunol ISSN： 0165-5728 Impact factor: 3.478