Changes in self-reactive IgG antibody repertoire after treatment of experimental autoimmune encephalomyelitis with anti-allergic drugs

J Neuroimmunol. 2007 Jan;182(1-2):80-8. doi: 10.1016/j.jneuroim.2006.10.002. Epub 2006 Nov 13.

Abstract

We reduced EAE severity by using two anti-allergic drugs. A control group of mice received i.p. injections of PBS as vehicle while a further two groups were treated either with pyrilamine, a histamine receptor 1 antagonist or with CV6209, a platelet activating factor receptor antagonist. Our results showed that the blockade of the responses to both histamine and PAF leads together to a decline in clinical signs of EAE and significant changes in the serum IgG recognition of some healthy brain antigenic targets. We characterized two discriminant antigens: internexin neuronal intermediate filament protein, and malate dehydrogenase 1, which were able to clearly distinguish untreated mice from treated mice. Their role as potent targets in pathogenic and/or neuroprotective processes is discussed.

MeSH terms

  • Animals
  • Anti-Allergic Agents / pharmacology*
  • Antibodies, Anti-Idiotypic / blood
  • Antibodies, Anti-Idiotypic / immunology*
  • Central Nervous System / immunology
  • Electrophoresis
  • Encephalomyelitis, Autoimmune, Experimental / immunology*
  • Female
  • Histamine Antagonists / pharmacology
  • Histamine H1 Antagonists / pharmacology
  • Immunoblotting
  • Immunoglobulin G / immunology*
  • Intermediate Filament Proteins / immunology
  • Malate Dehydrogenase / immunology
  • Mice
  • Mice, Inbred Strains
  • Platelet Activating Factor / antagonists & inhibitors
  • Platelet Membrane Glycoproteins / antagonists & inhibitors
  • Proteomics
  • Pyridinium Compounds / pharmacology
  • Pyrilamine / pharmacology
  • Receptors, G-Protein-Coupled / antagonists & inhibitors
  • Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization

Substances

  • Anti-Allergic Agents
  • Antibodies, Anti-Idiotypic
  • Histamine Antagonists
  • Histamine H1 Antagonists
  • Immunoglobulin G
  • Intermediate Filament Proteins
  • Platelet Activating Factor
  • Platelet Membrane Glycoproteins
  • Pyridinium Compounds
  • Receptors, G-Protein-Coupled
  • alpha-internexin
  • platelet activating factor receptor
  • CV 6209
  • Malate Dehydrogenase
  • Pyrilamine