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Comparison of Mesenchymal Stem Cells From Different Tissues to Suppress T-Cell Activation

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Graft-versus-host disease (GvHD) and graft rejection have remained significant complications of allogeneic stem cell transplantation. Mesenchymal stem cells (MSCs) from the bone marrow have been shown to suppress T-cell activation in vitro and in vivo, and may be used to reduce GvHD in the recipient or to facilitate engraftment across MHC barriers. MSCs can be derived from a variety of tissues. Thus, we asked whether MSCs from different tissues might have differential effects on T-cell responses. We were particularly interested in MSCs derived from adipose tissue because of its abundance and accessibility. We investigated and compared the immunosuppressive potential of murine MSCs derived from muscle tissue, adipose tissue, omentum, and bone. Cells from the different tissues were enriched for MSCs and cultured for 2–3 weeks to deplete hematopoietic cells. Mixed lymphocyte reactions (MLRs) including MSCs were performed using concanavalin A or allogeneic T cells as inducers of T-cell activation. MSCs from all tissues differentiated into multiple lineages. Mitogen-induced T-cell activation, as well as allogeneic T-cell responses, was reduced in MLRs mediated by the addition of MSCs. Reduction of T-cell activation was most pronounced for muscle tissue in the mitogen-induced MLR and fat tissue during the allogeneic MLR. These data demonstrate that MSCs from multiple tissues efficiently reduce T-cell activation. The results suggest that MSCs from adipose tissue can serve as an alternative source for MSCs to bone or bone marrow for the modulation of GvHD after allogeneic stem cell transplantation or to enhance engraftment across MHC barriers.

Keywords: Adipose tissue; Graft-versus-host disease (GvHD); Immunosuppression; Mesenchymal stem cells (MSCs); T-cell proliferation

Document Type: Research Article


Affiliations: 1: Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA 2: Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA, Departments of Medicine and Pathology, University of Washington School of Medicine, Seattle, WA 98195, USA

Publication date: 2007-05-01

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  • 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.
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