Induction of a type 1 regulatory CD4 T cell response following V beta 8.2 DNA vaccination results in immune deviation and protection from experimental autoimmune encephalomyelitis

Int Immunol. 2001 Jun;13(6):835-41. doi: 10.1093/intimm/13.6.835.


DNA vaccination has been used to generate effective cellular as well as humoral immunity against target antigens. Here we have investigated the induction and involvement of regulatory T cell (T(reg)) responses in mediating prevention of experimental autoimmune encephalomyelitis (EAE), following vaccination with plasmid DNA encoding the TCR V(beta)8.2 chain predominantly displayed on disease-causing lymphocytes. Vaccination with DNA encoding the wild-type TCR results in priming of type 1 CD4 T(reg) and skewing of the global response to myelin basic protein in a T(h)2 direction, leading to significant protection from disease. In contrast, vaccination with mutant DNA encoding altered residues critically involved in recognition by the T(reg) results in priming of a type 2 regulatory response which fails to mediate immune deviation or protection from EAE. Control mice immunized with DNA, encoding TCR with changes at an irrelevant site, were protected from antigen-induced disease. Furthermore, protection can be transferred into naive recipients with CD4 T(reg) from wild-type DNA-immunized mice but not from animals vaccinated with the mutant DNA. These data suggest that vaccination with plasmid DNA encoding one or multiple V(beta) genes can be exploited to enhance natural regulatory responses for intervention in autoimmune conditions.

Publication types

  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, P.H.S.

MeSH terms

  • Animals
  • Encephalomyelitis, Autoimmune, Experimental / prevention & control*
  • Female
  • Guinea Pigs
  • Immunodominant Epitopes / genetics
  • Immunodominant Epitopes / immunology
  • Lymphocyte Activation / immunology
  • Mice
  • Mice, Inbred C57BL
  • Mutation / immunology
  • Myelin Basic Protein / immunology
  • Myelin Basic Protein / pharmacology
  • Peptide Fragments / administration & dosage
  • Peptide Fragments / genetics*
  • Peptide Fragments / immunology*
  • Receptors, Antigen, T-Cell, alpha-beta / administration & dosage
  • Receptors, Antigen, T-Cell, alpha-beta / genetics*
  • Receptors, Antigen, T-Cell, alpha-beta / immunology*
  • T-Lymphocyte Subsets / immunology
  • T-Lymphocyte Subsets / metabolism
  • Th1 Cells / immunology*
  • Th1 Cells / metabolism
  • Vaccines, DNA / administration & dosage
  • Vaccines, DNA / genetics
  • Vaccines, DNA / immunology*


  • Immunodominant Epitopes
  • Myelin Basic Protein
  • Peptide Fragments
  • Receptors, Antigen, T-Cell, alpha-beta
  • T-cell receptor Vbeta 8.2
  • Vaccines, DNA