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Open Access Interaction Between Adipose Tissue-Derived Mesenchymal Stem Cells and Regulatory T-Cells

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Mesenchymal stem cells (MSCs) exhibit immunosuppressive capabilities, which have evoked interest in their application as cell therapy in transplant patients. So far it has been unclear whether allogeneic MSCs and host regulatory T-cells (Tregs) functionally influence each other. We investigated the interaction between both cell types using perirenal adipose tissue-derived MSCs (ASCs) from kidney donors and Tregs from blood bank donors or kidney recipients 6 months after transplantation. The immunomodulatory capacity of ASCs was not prejudiced by both Tregs from healthy donors and Tregs from graft recipients, indicating that ASCs were not targeted by the inhibitory effects of Tregs and vice versa. In addition, Tregs supported ASC function, as they did not alter the secretion of IFN-γ by immune cells and hence contributed to ASC activation and efficiency. ASCs exerted their suppressive role by expressing IDO, reducing levels of TNF-α, and by inducing the production of IL-10 in effector cells and Tregs. In conclusion, this study presents evidence that donor ASCs and acceptor Tregs do not impair each other's function and therefore encourages the use of MSC therapy for the prevention of graft rejection in solid organ transplantation.
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Keywords: Immunosuppression; Mesenchymal stem cells (MSCs); Regulatory T-cells (Tregs); Transplantation

Document Type: Research Article

Affiliations: Department of Internal Medicine, Transplantation Laboratory/Nephrology, Erasmus University Medical Center, Rotterdam, the Netherlands

Publication date: 01 January 2013

More about this publication?
  • Cell Transplantation publishes original, peer-reviewed research and review articles on the subject of cell transplantation and its application to human diseases. To ensure high-quality contributions from all areas of transplantation, separate section editors and editorial boards have been established. Articles deal with a wide range of topics including physiological, medical, preclinical, tissue engineering, and device-oriented aspects of transplantation of nervous system, endocrine, growth factor-secreting, bone marrow, epithelial, endothelial, and genetically engineered cells, among others. Basic clinical studies and immunological research papers are also featured. To provide complete coverage of this revolutionary field, Cell Transplantation will report on relevant technological advances, and ethical and regulatory considerations of cell transplants. Cell Transplantation is now an Open Access journal starting with volume 18 in 2009, and therefore there will be an inexpensive publication charge, which is dependent on the number of pages, in addition to the charge for color figures. This will allow work to be disseminated to a wider audience and also entitle the corresponding author to a free PDF, as well as prepublication of an unedited version of the manuscript.

    Cell Transplantation is now being published by SAGE. Please visit their website for the most recent issues.

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