IgG entry and deposition are components of the neuroimmune response in Batten disease

  • Ming J. Lim
  • , Noreen Alexander
  • , Jared W. Benedict
  • , Subrata Chattopadhyay
  • , Stephen J.A. Shemilt
  • , Christopher J. Guérin
  • , Jonathan D. Cooper
  • , David A. Pearce

Research output: Contribution to journalArticlepeer-review

58 Scopus citations

Abstract

Patients and a mouse model of Batten disease, the juvenile form of neuronal ceroid lipofuscinosis (JNCL), raise autoantibodies against GAD65 and other brain-directed antigens. Here we investigate the adaptive component of the neuroimmune response. Cln3-/- mice have autoantibodies to GAD65 in their cerebrospinal fluid and elevated levels of brain bound immunoglobulin G (IgG). IgG deposition was found within human JNCL autopsy material, a feature that became more evident with increased age in Cln3-/- mice. The lymphocyte infiltration present in human and murine JNCL occurred late in disease progression, and was not capable of central/intrathecal IgG production. In contrast, we found evidence for an early systemic immune dysregulation in Cln3-/- mice. In addition evidence for a size-selective breach in the blood-brain barrier integrity in these mice suggests that systemically produced autoantibodies can access the JNCL central nervous system and contribute to a progressive inflammatory response.

Original languageEnglish
Pages (from-to)239-251
Number of pages13
JournalNeurobiology of Disease
Volume25
Issue number2
DOIs
StatePublished - Feb 2007

Keywords

  • Autoimmunity
  • Batten disease
  • Blood-brain barrier
  • Brain-directed autoantibody
  • GAD65 autoantibody
  • Neuroinflammation
  • Neuronal ceroid lipofuscinoses

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