Antigen-specific T cell activation independently of the MHC: chimeric antigen receptor (CAR)-redirected T cells.

Adoptive T cell therapy has recently shown powerful in initiating a lasting anti-tumor response with spectacular therapeutic success in some cases. Specific T cell therapy, however, is limited since a number of cancer cells are not recognized by T cells due to various mechanisms including the limite...

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Main Authors: Hinrich eAbken, Markus eChmielewski, Andreas A. Hombach
Format: Article
Language:English
Published: Frontiers Media S.A. 2013-11-01
Series:Frontiers in Immunology
Subjects:
Online Access:http://journal.frontiersin.org/Journal/10.3389/fimmu.2013.00371/full
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author Hinrich eAbken
Hinrich eAbken
Markus eChmielewski
Andreas A. Hombach
author_facet Hinrich eAbken
Hinrich eAbken
Markus eChmielewski
Andreas A. Hombach
author_sort Hinrich eAbken
collection DOAJ
description Adoptive T cell therapy has recently shown powerful in initiating a lasting anti-tumor response with spectacular therapeutic success in some cases. Specific T cell therapy, however, is limited since a number of cancer cells are not recognized by T cells due to various mechanisms including the limited availability of tumor-specific T cells and deficiencies in antigen processing or major histocompatibility complex (MHC) expression of cancer cells. To make adoptive cell therapy applicable for the broad variety of cancer entities, patient's T cells are engineered ex vivo with pre-defined specificity by a recombinant chimeric antigen receptor (CAR) which consists in the extracellular part of an antibody-derived domain for binding with a tumor-associated antigen and in the intracellular part of a TCR-derived signaling moiety for T cell activation. The specificity of CAR mediated T cell recognition is defined by the antibody domain, is independent of MHC presentation and can be extended to any target for which an antibody is available. We discuss the advantages and limitations of MHC-independent T cell targeting by an engineered CAR and review most significant progress recently made in early stage clinical trials to treat cancer.
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spelling doaj.art-59c421acd3b541d685f8217cc6f435502022-12-22T03:23:07ZengFrontiers Media S.A.Frontiers in Immunology1664-32242013-11-01410.3389/fimmu.2013.0037168835Antigen-specific T cell activation independently of the MHC: chimeric antigen receptor (CAR)-redirected T cells.Hinrich eAbken0Hinrich eAbken1Markus eChmielewski2Andreas A. Hombach3Center for Molecular Medicine Cologne, University of CologneUniversity Hospital CologneCenter for Molecular Medicine Cologne, University of CologneCenter for Molecular Medicine Cologne, University of CologneAdoptive T cell therapy has recently shown powerful in initiating a lasting anti-tumor response with spectacular therapeutic success in some cases. Specific T cell therapy, however, is limited since a number of cancer cells are not recognized by T cells due to various mechanisms including the limited availability of tumor-specific T cells and deficiencies in antigen processing or major histocompatibility complex (MHC) expression of cancer cells. To make adoptive cell therapy applicable for the broad variety of cancer entities, patient's T cells are engineered ex vivo with pre-defined specificity by a recombinant chimeric antigen receptor (CAR) which consists in the extracellular part of an antibody-derived domain for binding with a tumor-associated antigen and in the intracellular part of a TCR-derived signaling moiety for T cell activation. The specificity of CAR mediated T cell recognition is defined by the antibody domain, is independent of MHC presentation and can be extended to any target for which an antibody is available. We discuss the advantages and limitations of MHC-independent T cell targeting by an engineered CAR and review most significant progress recently made in early stage clinical trials to treat cancer.http://journal.frontiersin.org/Journal/10.3389/fimmu.2013.00371/fullantibodyT cell receptorAntigen presenting cellChimeric Antigen Receptoradoptive cell therapy
spellingShingle Hinrich eAbken
Hinrich eAbken
Markus eChmielewski
Andreas A. Hombach
Antigen-specific T cell activation independently of the MHC: chimeric antigen receptor (CAR)-redirected T cells.
Frontiers in Immunology
antibody
T cell receptor
Antigen presenting cell
Chimeric Antigen Receptor
adoptive cell therapy
title Antigen-specific T cell activation independently of the MHC: chimeric antigen receptor (CAR)-redirected T cells.
title_full Antigen-specific T cell activation independently of the MHC: chimeric antigen receptor (CAR)-redirected T cells.
title_fullStr Antigen-specific T cell activation independently of the MHC: chimeric antigen receptor (CAR)-redirected T cells.
title_full_unstemmed Antigen-specific T cell activation independently of the MHC: chimeric antigen receptor (CAR)-redirected T cells.
title_short Antigen-specific T cell activation independently of the MHC: chimeric antigen receptor (CAR)-redirected T cells.
title_sort antigen specific t cell activation independently of the mhc chimeric antigen receptor car redirected t cells
topic antibody
T cell receptor
Antigen presenting cell
Chimeric Antigen Receptor
adoptive cell therapy
url http://journal.frontiersin.org/Journal/10.3389/fimmu.2013.00371/full
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AT markusechmielewski antigenspecifictcellactivationindependentlyofthemhcchimericantigenreceptorcarredirectedtcells
AT andreasahombach antigenspecifictcellactivationindependentlyofthemhcchimericantigenreceptorcarredirectedtcells