Anergy induction in encephalitogenic T cells by brain microvessel endothelial cells is inhibited by interleukin-1

European Journal of Immunology
S BourdoulousP O Couraud

Abstract

Experimental autoimmune encephalomyelitis (EAE) is an inflammatory disease of the central nervous system (CNS) which can be induced, in susceptible strains like Lewis rats, by transfer of activated myelin basic protein (MBP)-specific CD4+ T lymphocytes. The role of cerebral endothelium in the onset of EAE, with regard to adhesion, activation and infiltration in the CNS of encephalitogenic T lymphocytes, is not fully understood. When pretreated by interferon-gamma, the immortalized Lewis rat brain microvessel endothelial (RBE4) cells expressed major histocompatibility complex class II molecules and stimulated MBP-specific proliferation and cytolytic activity of the syngeneic encephalitogenic T cell line, designated PAS. However, RBE4-stimulated PAS lymphocytes subsequently entered an unresponsive state, known as anergy. When inoculated in syngeneic animals, anergic PAS cells, although still cytotoxic, failed to induce EAE, and no cell infiltration was detectable within CNS. The addition of interleukin-1 beta (IL-1 beta) during MBP presentation by RBE4 cells prevented T cell anergy induction, and maintained T cell encephalitogenicity, although PAS cells stimulated in these conditions caused delayed and attenuated clinical signs o...Continue Reading

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Citations

Sep 1, 1995·Journal of Neuroimmunology·Y WangJ Greenwood
Jan 5, 2006·Journal of Translational Medicine·Thomas E IchimEugenia K Oleinik
Nov 22, 2001·Proceedings of the National Academy of Sciences of the United States of America·C BeetonE Béraud
Mar 1, 2000·Journal of Neuroimmunology·J P Antel, T Owens
Aug 3, 2002·FASEB Journal : Official Publication of the Federation of American Societies for Experimental Biology·Peter AdamsonJohn Greenwood
Jul 2, 2003·Journal of Neuropathology and Experimental Neurology·Joel S PachterZsuzsa Fabry
Jan 6, 2001·The Journal of Immunology : Official Journal of the American Association of Immunologists·C BeetonE Béraud

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