First Author | Ji Q | Year | 2013 |
Journal | Nat Immunol | Volume | 14 |
Issue | 3 | Pages | 254-61 |
PubMed ID | 23291597 | Mgi Jnum | J:259325 |
Mgi Id | MGI:6141310 | Doi | 10.1038/ni.2513 |
Citation | Ji Q, et al. (2013) MHC class I-restricted myelin epitopes are cross-presented by Tip-DCs that promote determinant spreading to CD8(+) T cells. Nat Immunol 14(3):254-61 |
abstractText | Myelin presentation to T cells in the central nervous system (CNS) sustains inflammation in multiple sclerosis (MS). CD4(+) and CD8(+) T cells contribute to MS, but only cells that present myelin to CD4(+) T cells have been identified. We show that MHC class I-restricted myelin basic protein (MBP) was presented by oligodendrocytes and cross-presented by Tip-dendritic cells (DCs) during experimental autoimmune encephalomyelitis (EAE), an animal model of MS initiated by CD4(+) T cells. Tip-DCs activated naive and effector CD8(+) T cells ex vivo, and naive MBP-specific CD8(+) T cells were activated in the CNS during CD4(+) T cell-induced EAE. These results demonstrate that CD4(+) T cell-mediated CNS autoimmunity leads to determinant spreading to myelin-specific CD8(+) T cells that can directly recognize oligodendrocytes. |