Table of Contents Author Guidelines Submit a Manuscript
Journal of Transplantation
Volume 2013, Article ID 761429, 17 pages
http://dx.doi.org/10.1155/2013/761429
Review Article

Dendritic Cell-Based Approaches for Therapeutic Immune Regulation in Solid-Organ Transplantation

1Department of Cardiology, Centre Hospitalier Universitaire Vaudois, 1011 Lausanne, Switzerland
2Molecular Cardiology Laboratory, Fondazione Cardiocentro Ticino, 6900 Lugano, Switzerland

Received 31 May 2013; Accepted 16 September 2013

Academic Editor: F. H. J. Claas

Copyright © 2013 Giuseppe Vassalli. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

To avoid immune rejection, allograft recipients require drug-based immunosuppression, which has significant toxicity. An emerging approach is adoptive transfer of immunoregulatory cells. While mature dendritic cells (DCs) present donor antigen to the immune system, triggering rejection, regulatory DCs interact with regulatory T cells to promote immune tolerance. Intravenous injection of immature DCs of either donor or host origin at the time of transplantation have prolonged allograft survival in solid-organ transplant models. DCs can be treated with pharmacological agents before injection, which may attenuate their maturation in vivo. Recent data suggest that injected immunosuppressive DCs may inhibit allograft rejection, not by themselves, but through conventional DCs of the host. Genetically engineered DCs have also been tested. Two clinical trials in type-1 diabetes and rheumatoid arthritis have been carried out, and other trials, including one trial in kidney transplantation, are in progress or are imminent.