Journal
TRANSPLANT INTERNATIONAL
Volume 30, Issue 8, Pages 745-753Publisher
WILEY
DOI: 10.1111/tri.12909
Keywords
clinical trials; good manufacturing practice; regulatory T cells; transplantation
Categories
Funding
- MRC [MR/K025538/1, MC_PC_14105, MR/L022699/1] Funding Source: UKRI
- British Heart Foundation [RG/13/12/30395] Funding Source: researchfish
- Medical Research Council [1577072, MR/L022699/1, MR/J006742/1, MC_PC_14105, MR/K025538/1] Funding Source: researchfish
- Rosetrees Trust [M520] Funding Source: researchfish
- British Heart Foundation [RG/13/12/30395] Funding Source: Medline
- Medical Research Council [MC_PC_14105, MR/J006742/1, MR/L022699/1, MR/K025538/1] Funding Source: Medline
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Solid organ transplantation remains the treatment of choice for end-stage organ failure. Whilst the short-term outcomes post-transplant have improved in the last decades, chronic rejection and immunosuppressant side effects remain an ongoing concern. Hematopoietic stem cell transplantation is a well-established procedure for the treatment of patients with haematological disorders. However, donor T cells are continually primed and activated to react against the host causing graft-versus-host disease (GvHD) that leads to tissue damages and death. Regulatory T cells (Tregs) play an essential role in maintaining tolerance to self-antigens, preventing excessive immune responses and abrogating autoimmunity. Due to their suppressive properties, Tregs have been extensively studied for their use as a cellular therapy aiming to treat GvHD and limit immune responses responsible for graft rejection. Several clinical trials have been conducted or are currently ongoing to investigate safety and feasibility of Treg-based therapy. This review summarizes the general understanding of Treg biology and presents the methods used to isolate and expand Tregs. Furthermore, we describe data from the first clinical trials using Tregs, explaining the limitations and future application of these cells.
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