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The induction of experimental autoimmune myocarditis in mice lacking CD4 or CD8 molecules [corrected] [published erratum appears in J Exp Med 1994 Jan 1;179(1):371]
  • Published Date:
    Nov 1 1993
  • Source:
    J Exp Med. 178(5):1837-1842.
Filetype[PDF-1.59 MB]

  • Alternative Title:
    J Exp Med
  • Description:
    Experimental induction of most autoimmune diseases appears to depend on the activation of CD4+ T helper cells, while CD8+ lymphocytes may have a role in disease progression. To study the role of CD4+ and CD8+ T cell subsets in T cell-dependent autoimmunity, mice lacking CD4 or CD8 molecules after gene targeting were injected with cardiac myosin to induce organ specific autoimmune myocarditis. Mice homozygous for the CD8 mutation (CD8-/-) developed significantly more severe disease as compared to CD4+/-CD8+/- controls. Surprisingly, CD4-/- mice developed autoimmune myocarditis with infiltration of TCR alpha beta +CD4-CD8- T cells in the heart tissue and appearance of autoantibodies. These data demonstrate that the lack of CD4+ or CD8+ T cells has no significant influence on the initiation of autoimmune myocarditis. CD4+ and CD8+ cells regulate disease severity and these results may explain the occurrence of autoimmunity in CD4 immunodeficiencies.
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