近年研究发现,人体内有一个具有独特免疫调节功能的T细胞亚群-CD4+CD25+调节性T细胞(regulatoryTcells,Treg),其以调节自身T细胞反应为主要功能,不仅能够抑制自身免疫疾病的发生,而且可能参与诱导移植耐受以及肿瘤免疫的调节,在维持机体内环境的稳定中发挥重要作用。目前这类细 Recent studies have found that there is a T cell subpopulation of CD4 + CD25 + regulatory T cells (Tregs) with unique immunomodulatory function in the human body, which regulates its own T cell responses as its main function and not only inhibits autoimmune diseases Occur, and may participate in the induction of tolerance to transplantation and the regulation of tumor immunity, play an important role in maintaining the stability of the environment in the body. At present such fine