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Updated: Jul 19, 2026

In Vitro and In Vivo Assessment of T, B and Myeloid Cells Suppressive Activity and Humoral Responses from Transplant Recipients
Published on: August 12, 2017
Antigen-specific regulatory T-cell subsets in transplantation tolerance regulatory T-cell subset quality reduces the
Hans J P M Koenen1, Irma Joosten
1Department of Blood Transfusion and Transplantation Immunology, Radboud University Medical Center Nijmegen, Nijmegen, The Netherlands. h.koenen@abti.umcn.nl
Regulatory T cells (Treg) are critical controllers of the immune response. Disturbed Treg function results in autoimmunity, whereas in transplantation Treg are crucial in graft survival and transplant tolerance. Hence therapeutic modalities that influence Treg numbers or function hold great clinical opportunity. Ahead of us are clinical trails studying in vivo Treg induction protocols and immunotherapy with ex vivo expanded Treg. Here we discuss the preferential use and/or induction of antigen-specific Treg subsets with high suppressive power and migratory capacity as a potential therapeutic tool to prevent solid organ transplantation rejection. Accordingly, ex vivoselection procedures to induce and isolate highly suppressive antigen-specific Treg (subsets) are needed. This subject, as well as the Treg-facilitating potential of immunosuppressive agents, is discussed.
Regulatory T cells (Treg) are critical controllers of the immune response. Disturbed Treg function results in autoimmunity, whereas in transplantation Treg are crucial in graft survival and transplant tolerance. Hence therapeutic modalities that influence Treg numbers or function hold great clinical opportunity. Ahead of us are clinical trails studying in vivo Treg induction protocols and immunotherapy with ex vivo expanded Treg. Here we discuss the preferential use and/or induction of antigen-specific Treg subsets with high suppressive power and migratory capacity as a potential therapeutic tool to prevent solid organ transplantation rejection. Accordingly, ex vivoselection procedures to induce and isolate highly suppressive antigen-specific Treg (subsets) are needed. This subject, as well as the Treg-facilitating potential of immunosuppressive agents, is discussed.
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