Control of T Cell Responses, Tolerance and Autoimmunity by Regulatory T Cells: Current Concepts

Regulatory T cells have emerged as an important mechanism of regulating tolerance and T cell responses. CD4+ regulatory T cells can be divided into two main groups, natural regulatory T cells, which express high levels of CD25 on their cell surface and phenotypically diverse adaptive (antigen induce...

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Main Author: Pavel Chrobák
Format: Article
Language:English
Published: Karolinum Press 2003-01-01
Series:Acta Medica
Subjects:
Online Access:https://actamedica.lfhk.cuni.cz/46/4/0131/
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author Pavel Chrobák
author_facet Pavel Chrobák
author_sort Pavel Chrobák
collection DOAJ
description Regulatory T cells have emerged as an important mechanism of regulating tolerance and T cell responses. CD4+ regulatory T cells can be divided into two main groups, natural regulatory T cells, which express high levels of CD25 on their cell surface and phenotypically diverse adaptive (antigen induced) regulatory T cells. Natural regulatory T cells are made in the thymus, and require strong costimulatory signals for induction and maintenance, express a transcription factor called Foxp3, and function by a largely unknown mechanism. Adaptive (antigen induced) regulatory T cells are made by sub-optimal antigenic signals in the periphery, in the presence of immunosuppressive cytokines, often in special circumstances, such as chronic viral infections or after mucosal administration of antigen, and rely on cytokines such as IL-10 and TGF-β for suppression. Regulatory T cells offer a great potential for the treatment of autoimmune diseases and during transplantation.
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spelling doaj.art-1036a37798c8493a93211a2a79d96d7d2022-12-22T02:06:31ZengKarolinum PressActa Medica1211-42861805-96942003-01-0146413113710.14712/18059694.2019.22Control of T Cell Responses, Tolerance and Autoimmunity by Regulatory T Cells: Current ConceptsPavel Chrobák0Institute of Clinical Research of Montreal, Molecular Biology Unit, Montreal, Quebec, CanadaRegulatory T cells have emerged as an important mechanism of regulating tolerance and T cell responses. CD4+ regulatory T cells can be divided into two main groups, natural regulatory T cells, which express high levels of CD25 on their cell surface and phenotypically diverse adaptive (antigen induced) regulatory T cells. Natural regulatory T cells are made in the thymus, and require strong costimulatory signals for induction and maintenance, express a transcription factor called Foxp3, and function by a largely unknown mechanism. Adaptive (antigen induced) regulatory T cells are made by sub-optimal antigenic signals in the periphery, in the presence of immunosuppressive cytokines, often in special circumstances, such as chronic viral infections or after mucosal administration of antigen, and rely on cytokines such as IL-10 and TGF-β for suppression. Regulatory T cells offer a great potential for the treatment of autoimmune diseases and during transplantation.https://actamedica.lfhk.cuni.cz/46/4/0131/Regulatory T cellsToleranceAutoimmunityTransplantationInfection
spellingShingle Pavel Chrobák
Control of T Cell Responses, Tolerance and Autoimmunity by Regulatory T Cells: Current Concepts
Acta Medica
Regulatory T cells
Tolerance
Autoimmunity
Transplantation
Infection
title Control of T Cell Responses, Tolerance and Autoimmunity by Regulatory T Cells: Current Concepts
title_full Control of T Cell Responses, Tolerance and Autoimmunity by Regulatory T Cells: Current Concepts
title_fullStr Control of T Cell Responses, Tolerance and Autoimmunity by Regulatory T Cells: Current Concepts
title_full_unstemmed Control of T Cell Responses, Tolerance and Autoimmunity by Regulatory T Cells: Current Concepts
title_short Control of T Cell Responses, Tolerance and Autoimmunity by Regulatory T Cells: Current Concepts
title_sort control of t cell responses tolerance and autoimmunity by regulatory t cells current concepts
topic Regulatory T cells
Tolerance
Autoimmunity
Transplantation
Infection
url https://actamedica.lfhk.cuni.cz/46/4/0131/
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