Journal
NEPHROLOGY
Volume 20, Issue 1, Pages 25-33Publisher
WILEY-BLACKWELL
DOI: 10.1111/nep.12338
Keywords
immunomodulation; mesenchymal stromal cell; renal transplant; T regulatory cell
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Funding
- Department of Biotechnology, Government of India
- INSPIRE faculty award of the Department of Science and Technology, Govt of India
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AimThis pilot study assesses the safety and feasibility of autologous mesenchymal stromal cell (MSC) transplantation in four patients that underwent living donor renal transplantation, and the effect on the immunophenotype and functionality of peripheral T lymphocytes following transplantation. MethodsAll patients received low dose ATG induction followed by calcineurin inhibitor-based triple drug maintenance immunosuppression. Autologous MSCs were administered intravenously pre transplant and day 30 post-transplant. Patients were followed up for 6 months. The frequency of regulatory T cells and T cell proliferation was assessed at different time points. ResultsNone of the four patients developed any immediate or delayed adverse effects following MSC infusion. All had excellent graft function, and none developed graft dysfunction. Protocol biopsies at 1 and 3 months did not reveal any abnormality. Compared to baseline, there was an increase in the CD4+CD25+FOXP3+ regulatory T cells and reduction in CD4 T cell proliferation. ConclusionWe conclude that autologous MSCs can be used safely in patients undergoing living donor renal transplantation, lead to expansion of regulatory T cells and decrease in T cell proliferation. Larger randomized trials studies are needed to confirm these findings and evaluate whether this will have any impact on immunosuppressive therapy. Summary at a Glance Promising result on regulatory T-cell response after using autologous mesenchymal stromal cells was demonstrated in this pilot study involving four living kidney transplantations.
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