Aquaporin 4 antibody positive central nervous system autoimmunity and multiple sclerosis are characterized by a distinct profile of antibodies to herpes viruses

Johann Sellner, Sabine Cepok, Sudhakar Reddy Kalluri, Axel Nestler, Ingo Kleiter, Tania Kümpfel, Ralf Linker, Arthur Melms, Til Menge, Hayrettin Tumani, Friedemann Paul, Bernhard Hemmer, Achim Berthele

Research output: Contribution to journalArticlepeer-review

15 Scopus citations

Abstract

Viral infections are implicated in the onset and promotion of autoimmunity in genetically predisposed individuals. In this study, immune response patterns to herpes viruses were compared in aquaporin 4 (AQP4) antibody positive central nervous system (CNS) autoimmunity and multiple sclerosis (MS).Serum samples of patients with AQP4 antibody positive CNS autoimmunity (n=52), relapsing-remitting MS (n=55) and controls including non-autoimmune neurological disorders and healthy individuals (n=56) were tested for IgG antibodies to herpes viruses 1-6 (HSV-1, HSV-2, VZV, EBV, CMV, HHV-6) using commercial ELISA kits.AQP4 antibody positive CNS autoimmunity cases most frequently had IgG responses to four viruses (38.5%), while presence of antibodies to three herpes viruses was most common in MS and controls (41.8% and 35.7%, respectively). Compared to MS, AQP4 positive cases had a significantly higher CMV seropositivity rate (P=0.003) and a lower prevalence of EBV antibodies (P=0.01). The analysis of immunoreactivity of samples above the diagnostic threshold revealed that in AQP4 positive CNS autoimmunity the IgG response to EBV (P<0.001) and VZV (P<0.01) was lower than in MS, whereas immununoreactivity to HSV-1 was higher than in controls (P<0.01).The distinct pattern of seroprevalence and immunoreactivity against herpes viruses in AQP4 positive CNS autoimmunity and MS provide further insights to the pathogenetical heterogeneity. Whether these findings reflect an epi-phenomenon of autoimmune disorders or indicate a disease-specific deregulated virus-host interaction needs to be examined in further studies.

Original languageEnglish
Pages (from-to)662-667
Number of pages6
JournalNeurochemistry International
Volume57
Issue number6
DOIs
StatePublished - Nov 2010
Externally publishedYes

Keywords

  • Aquaporin-4
  • Herpes virus
  • Infection
  • Multiple sclerosis
  • Neuromyelitis optica
  • Pathogenesis

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