Abstract
T regulatory cells (Tregs) play an important role in the induction and maintenance of immunological tolerance to self and alloantigens. Recent findings in experimental transplant models have demonstrated that Treg could control and delay allograft rejection. Induction of immune tolerance decreases the risk of acute and chronic graft rejection after solid organ transplantation and can improve transplanted organ survival. Tregs are being tested in trials as a potential therapy in cell and solid organ transplantation. However, as we know, regulatory T cells (Tregs) are crucial for peripheral tolerance and are intimately involved in cancer. The influence of Tregs on cancer progression has been demonstrated in a large number of preclinical models and confirmed in several types of malignancies. Neoplastic processes trigger an increase of Treg numbers in draining lymph nodes, spleen, blood, and tumors, leading to the suppression of anti-tumor responses. In this review, we summarize some of the critical aspects of the immunoregulatory function of Treg cells in cancer and transplantation and discuss their potential research progress and challenge.
Highlights
Characteristic and function of T regulatory cells (Tregs) cells research achieved significant progress
Zhu balance between transplantation tolerance and cancer? Here, we discuss the progress of Treg cells and comment on their challenge between immune tolerance and cancer
Treg cells can be classified into natural and induced Treg cells [27]-[31] (Figure 1)
Summary
Characteristic and function of Treg cells research achieved significant progress. Because of its immunosuppression, the influence of Treg cells on cancer progression has been demonstrated in a large number of preclinical models and confirmed in several types of malignancies [6]-[11]. (2015) The Research of Treg Cells: Progress and Challenge. We discuss the progress of Treg cells and comment on their challenge between immune tolerance and cancer. Treg cells originate from thymus, being called natural Treg cells. These cells move to periphery to exert their roles [12]-[18]. Treg cells can be classified into natural (nTreg) and induced Treg (iTreg) cells [27]-[31] (Figure 1).
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