Encephalitogenic T cells in the B10.PL model of experimental allergic encephalomyelitis (EAE) are of the Th-1 lymphokine subtype

Cell Immunol. 1989 Nov;124(1):132-43. doi: 10.1016/0008-8749(89)90117-2.

Abstract

T helper cells reactive to myelin basic protein are clearly implicated in the pathogenesis of murine EAE. We have developed a T cell line, BML-1 that (1) is reactive to the encephalitogenic amino terminal nonapeptide (1-9NAC) of MBP, (2) is I-Au restricted, and (3) induces relapsing EAE in B10.PL (H-2u) mice. Measurement of the lymphokine profile of BML-1 revealed secretion of IL-2, interferon-gamma and lymphotoxin but not IL-4. This profile is consistent with the Th1/DTH subtype. Coculture of BML-1 with MBP-primed B cells shows that BML-1 does not provide significant helper function in vitro. In addition, BML-1 secretion of interferon-gamma was found to inhibit LPS-induced anti-MBP antibody responses. This suggested that anti-MBP antibodies may not be necessary for induction of EAE. Sera from mice, in which severe disease was induced with the 1-9NAC peptide and Bordetella pertussis, showed no development of serum antibodies to MBP. These data show that MBP-reactive Th cells of the Th-1/DTH subtype can induce EAE and do not provide Th function for anti-MBP responses and that serum anti-MBP antibodies are not found in peptide 1-9NAC-induced disease. T cell lines specific for encephalitogenic epitopes and characterized for lymphokine secretion will provide a useful tool for understanding the role of T cells in the induction of EAE.

MeSH terms

  • Animals
  • Antibody Formation
  • Encephalomyelitis, Autoimmune, Experimental / etiology*
  • Epitopes
  • Histocompatibility Antigens Class II / immunology
  • Interferon-gamma / metabolism
  • Interleukins / analysis
  • Lymphokines / physiology*
  • Mice
  • Myelin Basic Protein / immunology
  • Rats
  • T-Lymphocytes, Helper-Inducer / physiology*

Substances

  • Epitopes
  • Histocompatibility Antigens Class II
  • Interleukins
  • Lymphokines
  • Myelin Basic Protein
  • Interferon-gamma