Peer-reviewed veterinary case report
A paradoxical role of APCs in the induction of intravenous tolerance in experimental autoimmune encephalomyelitis.
- Journal:
- Journal of neuroimmunology
- Year:
- 2005
- Authors:
- Zhang, Guang-Xian et al.
- Affiliation:
- Department of Neurology · United States
- Species:
- rodent
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.
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Search related cases →Original publication: https://pubmed.ncbi.nlm.nih.gov/15748949/