Autoimmunity in the immune privileged eye: pathogenic and regulatory T cells

Immunol Res. 2008;42(1-3):41-50. doi: 10.1007/s12026-008-8031-3.

Abstract

Experimental autoimmune uveitis (EAU) in animals serves as a model of human uveitis. EAU can be induced in mice by immunization with the retinal antigen interphotoreceptor retinoid binding protein (IRBP) in complete Freund's adjuvant (CFA) or by IRBP-pulsed mature dendritic cells, and can be driven either by a Th17 or a Th1 effector response, depending on the model. The direction of the response is affected by conditions present during the exposure to antigen, including the quality/quantity of innate receptor stimulation and/or type of APC. IL-17 and IFN-gamma production by innate cells such as NKT may also affect the disease process. If exposure to antigen is via a hydrodynamic DNA vaccination with an IRBP-encoding plasmid, the response is directed to a regulatory phenotype, and disease is ameliorated or prevented. Our data shed light on effector and regulatory responses in autoimmune disease, provide balance to the Th1/Th17 paradigm and help to explain the clinical heterogeneity of human uveitis, which occurs in the face of responses to the same ocular antigen(s).

Publication types

  • Review

MeSH terms

  • Animals
  • Autoimmune Diseases / immunology*
  • Autoimmune Diseases / metabolism
  • Autoimmune Diseases / pathology
  • Eye Proteins / immunology
  • Humans
  • Interferon-gamma / metabolism
  • Interleukin-17 / metabolism
  • Retinol-Binding Proteins / immunology
  • T-Lymphocytes / immunology*
  • T-Lymphocytes / metabolism
  • T-Lymphocytes, Regulatory / immunology*
  • Th1 Cells / immunology
  • Th1 Cells / metabolism
  • Uveitis / immunology*
  • Uveitis / metabolism
  • Uveitis / pathology

Substances

  • Eye Proteins
  • Interleukin-17
  • Retinol-Binding Proteins
  • interstitial retinol-binding protein
  • Interferon-gamma