Abstract

The ultimate goal of any treatment for autoimmune diseases is antigen- and/or site-specific suppression of pathology. Autoaggressive lymphocytes need to be eliminated or controlled to prevent tissue damage and halt the progression of clinical disease. Strong evidence is emerging that the induction of regulatory T (T_Reg) cells by autoantigens can suppress disease, even if the primary, initiating autoantigens are unknown and if inflammation is progressive. An advantage of these autoreactive T_Reg cells is their ability to act as bystander suppressors and dampen inflammation in a site-specific manner in response to cognate antigen expressed locally by affected tissues. In this review, we consider the nature and function of such antigen-specific T_Reg cells, and strategies for their therapeutic induction are discussed.

Author affiliations

1. La Jolla Institute for Allergy and Immunology, Division of Immune Regulation, 10355 Science Center Drive, San Diego, California 92121, USA.
   Email: matthias@liai.org
2. Walter Eliza Hall Institute of Medical Research, Autoimmunity and Transplantation Division, Parkville, 3050 Victoria, Australia.
   Email: harrison@wehi.edu.au