Accumulation of passively transferred primed T cells independently of their antigen specificity following central nervous system trauma

J Neuroimmunol. 1998 Aug 14;89(1-2):88-96. doi: 10.1016/s0165-5728(98)00118-0.

Abstract

The central nervous system (CNS) enjoys a unique relationship with the immune system. Under non-pathological conditions, T cells move through the CNS but do not accumulate there. CNS trauma has been shown to trigger a response to CNS self-antigens such as myelin basic protein (MBP). Here, we examined whether the injured CNS tissue undergoes changes that permit T cell accumulation. We found that injury to CNS white matter, such as the optic nerve, led to a transiently increased accumulation of T cells (between days 3 and 21). In Lewis rats with unilaterally injured optic nerves, systemic administration of passively transferred T cells recognizing either self-antigen (MBP) or non-self-antigen (ovalbumin) resulted in accumulation of the T cells in injured optic nerve, irrespective of their antigenic specificity. The effect of the T cells on the damaged nerve, the lack of selectivity in T cell accumulation and the mechanism underlying non-selective accumulation are discussed.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Blood-Brain Barrier / immunology
  • Brain Injuries / immunology*
  • Cell Movement / immunology*
  • Coloring Agents / pharmacokinetics
  • Epitopes*
  • Evans Blue / pharmacokinetics
  • Female
  • Glial Fibrillary Acidic Protein / analysis
  • Kinetics
  • Lymphocyte Activation / immunology
  • Lymphocyte Count
  • Nerve Crush
  • Neuroimmunomodulation / immunology
  • Optic Nerve / chemistry
  • Optic Nerve / immunology
  • Optic Nerve Injuries*
  • Ovalbumin / immunology
  • Rats
  • Rats, Inbred Lew
  • Receptors, Antigen, T-Cell / analysis
  • T-Lymphocytes / cytology
  • T-Lymphocytes / immunology*
  • T-Lymphocytes / transplantation

Substances

  • Coloring Agents
  • Epitopes
  • Glial Fibrillary Acidic Protein
  • Receptors, Antigen, T-Cell
  • Evans Blue
  • Ovalbumin