Serum antibodies from epileptic patients react, at high prevalence, with simian virus 40 mimotopes

Eur J Neurol. 2015 May;22(5):789-95, e51-2. doi: 10.1111/ene.12652. Epub 2015 Jan 18.

Abstract

Background and purpose: It has been demonstrated that inflammation may contribute to epileptogenesis and cause neuronal injury in epilepsy. In this study, the prevalence of antibodies to simian virus 40 (SV40), a kidney and neurotropic polyomavirus, was investigated in serum samples from 88 epileptic children/adolescents/young adults.

Methods: Serum antibodies reacting to specific SV40 peptides were analysed by indirect enzyme-linked immunosorbent assay. Synthetic peptides corresponding to the epitopes of viral capsid proteins 1-3 were used as SV40 antigens.

Results: A significantly higher prevalence of antibodies against SV40 was detected in sera from epileptic patients compared to controls (41% vs. 19%). Specifically, the highest significant difference was revealed in the cohort of patients from 1.1 to 10 years old (54% vs. 21%), with a peak in the sub-cohort of 3.1-6 years old (65% vs. 18%).

Conclusion: Our immunological data suggest a strong association between epilepsy and the SV40 infection.

Keywords: children; epilepsy; inflammation; simian virus 40.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adolescent
  • Adult
  • Antibodies, Viral / blood*
  • Child
  • Child, Preschool
  • Epilepsy / etiology
  • Epilepsy / immunology*
  • Female
  • Humans
  • Infant
  • Inflammation / complications
  • Inflammation / immunology*
  • Male
  • Prevalence
  • Simian virus 40 / immunology*
  • Young Adult

Substances

  • Antibodies, Viral