Regulatory T-cell subsets and their roles in transplantation tolerance Report uri icon

Overview

MeSH Major

  • Immunotherapy
  • T-Lymphocyte Subsets
  • T-Lymphocytes, Regulatory

abstract

  • PURPOSE OF REVIEW: Accumulating evidence indicates that regulatory T cells play a critical role in regulating various immune responses. This review summarizes the current literature regarding the roles and mechanisms of regulatory T-cell subsets in transplantation tolerance. RECENT FINDINGS: Numerous studies suggest that regulatory T cells can be induced by transplant tolerance protocols, and regulatory T cells are required for both induction and maintenance of transplantation tolerance. In addition, advances have been made in understanding the thymic versus extrathymic development of regulatory T cells, the location and timing of regulatory T-cell-mediated suppression, as well as the cell surface molecules and cytokines that are involved in modulating regulatory T-cell activity. The antigen specificity and molecular mechanisms by which regulatory T cells exert their function, however, remain controversial. Attention has also been focused on the therapeutic use of regulatory T cells in preventing allograft rejection either by in-vitro generation of large-scale functional regulatory T cells or by in-vivo induction and expansion of regulatory T cells. SUMMARY: Further understanding the molecular mechanisms that are important for activation and function of regulatory T-cell subsets may lead to the development of novel therapies for the induction and maintenance of donor-specific transplantation tolerance. © 2006 Lippincott Williams & Wilkins.

publication date

  • August 2006

Research

keywords

  • Report

Identity

Digital Object Identifier (DOI)

  • 10.1097/01.mot.0000236699.52834.6f

Additional Document Info

start page

  • 373

end page

  • 378

volume

  • 11

number

  • 4