Tregs and kidney: From diabetic nephropathy to renal transplantation.
Kidney transplantation is recognised as the most effective treatment for patients with end-stage renal disease (ESRD). Kidney transplantation continues to face several challenges including long-term graft and patient survival, and the side effects of immunosuppressive therapy. The tendency in kidney transplantation is to avoid the side effects of immunosuppresants and induce immune tolerance. Regulatory T-cells (Tregs) contribute to self-tolerance, tolerance to alloantigen and transplant tolerance, mainly by suppressing the activation and function of reactive effector T-cells. Additionally, Tregs are implicated in the pathogenesis of diabetes, which is the leading cause of ESRD, suggesting that these cells play a role both in the pathogenesis of chronic kidney disease and the induction of transplant tolerance. Several strategies to achieve immunological tolerance to grafts have been tested experimentally, and include combinations of co-stimulatory blockade pathways, T-cell depletion, in vivo Treg-induction and/or infusion of ex-vivo expanded Tregs. However, a successful regimen that induces transplant tolerance is not yet available for clinical application. This review brings together certain key studies on the role of Tregs in ESRD, diabetes and kidney transplantation, only to emphasize that many more studies are needed to elucidate the clinical significance and the therapeutic applications of Tregs.
Periklis Dousdampanis, Kostantina Trigka, Hemodialysis Unit, Kyanos Stavros, 26225 Patras, Greece.
Periklis
P
Dousdampanis
Periklis Dousdampanis, Kostantina Trigka, Hemodialysis Unit, Kyanos Stavros, 26225 Patras, Greece.
Kostantina
K
Trigka
Periklis Dousdampanis, Kostantina Trigka, Hemodialysis Unit, Kyanos Stavros, 26225 Patras, Greece.
Athanasia
A
Mouzaki
Diabetes; Foxp3; Kidney transplantation; Regulatory T-cells
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