Active immunization induces toxicity of diphtheria toxin in diphtheria resistant mice--implications for neuroinflammatory models

J Immunol Methods. 2010 Mar 31;354(1-2):80-4. doi: 10.1016/j.jim.2010.01.012. Epub 2010 Feb 4.

Abstract

Cell-type specific expression of the human diphtheria toxin receptor in generally toxin resistant mice represents an innovative approach for the selective depletion of pre-defined cell populations. We demonstrate that in wildtype mice diphtheria toxin--in concentrations otherwise well tolerated--is highly toxic and lethal together with active immunization irrespective of the immunogenic peptide applied. We found increased lung cellularity as only pathological abnormality. Animal models of inflammatory diseases requiring active immunization including experimental autoimmune encephalomyelitis may thus not be applicable in diphtheria receptor transgenic mice pointing to a major limitation of this otherwise technically interesting approach.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Diphtheria Toxin / immunology
  • Diphtheria Toxin / toxicity*
  • Encephalomyelitis, Autoimmune, Experimental / genetics
  • Encephalomyelitis, Autoimmune, Experimental / immunology*
  • Encephalomyelitis, Autoimmune, Experimental / metabolism
  • Female
  • Freund's Adjuvant / immunology
  • Heparin-binding EGF-like Growth Factor
  • Humans
  • Immunization / adverse effects*
  • Intercellular Signaling Peptides and Proteins / genetics
  • Intercellular Signaling Peptides and Proteins / metabolism*
  • Lung / drug effects
  • Lung / immunology
  • Mice
  • Mice, Inbred C57BL
  • Mice, Transgenic
  • Neuritis, Autoimmune, Experimental / genetics
  • Neuritis, Autoimmune, Experimental / immunology*
  • Neuritis, Autoimmune, Experimental / metabolism
  • Ovalbumin / immunology
  • Peptide Fragments / immunology
  • Pertussis Toxin / immunology
  • Time Factors
  • Weight Loss / drug effects

Substances

  • Diphtheria Toxin
  • HBEGF protein, human
  • Hbegf protein, mouse
  • Heparin-binding EGF-like Growth Factor
  • Intercellular Signaling Peptides and Proteins
  • OVA 323-339
  • Peptide Fragments
  • Ovalbumin
  • Freund's Adjuvant
  • Pertussis Toxin