Elsevier

Microbes and Infection

Volume 3, Issue 11, September 2001, Pages 883-889
Microbes and Infection

An overview of regulatory T cells

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Abstract

The induction of tolerance is essential for the maintenance of immune homeostasis and for the prevention of autoimmune diseases. To induce tolerance the immune system uses several mechanisms, including the deletion of autoreactive T cells, the induction of anergy and active suppression of autoimmune responses. The mechanisms of thymic deletion and anergy of autoreactive T cells are well characterized, whereas active suppression by T regulatory cells, which has recently emerged as an essential component of the immune response to induce peripheral tolerance, is less well understood. Results from seminal studies by a number of laboratories have renewed interest in (CD4+) T cells with regulatory properties and some of the researchers who have been involved in this effort have contributed to this Forum on regulatory T cells. This general overview on regulatory T cells comments on recent results in the field of regulatory T cells and presents our current knowledge on Tr1 T cells.

Keywords

Tr1 T cells
tolerance induction
homeostasis
overview

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