1975年Moretta等根据T细胞表面具有不同免疫球蛋白(IgG、IgM)的FC受体,分为Tr和Tμ(TM)细胞,对Tr和Tμ细胞进行了形态学和功能学上的研究,并认为Tr细胞具有抑制作用,Tμ细胞有辅助作用。随后人们又发现Tμ细胞表面IgM·FC受体不稳定,重复性差,其确切功能可能相当于未分类的总T细胞功能。近2年来由于单克隆抗体和功能试验迅速发展,对Tr细胞作了进一步的研 In 1975, Moretta et al. Studied the morphological and functional studies of Tr and Tμ cells on the basis of FC receptors with different immunoglobulins (IgGs, IgMs) on T cell surface, which were divided into Tr and Tμ (TM) cells. Tr cells are considered to have an inhibitory effect, Tμ cells have an auxiliary role. Subsequently, it was also found that the T cell surface IgM-Fc receptor is unstable and has poor reproducibility, and its exact function may be equivalent to the unclassified T cell function. In the past 2 years due to the rapid development of monoclonal antibodies and functional tests on Tr cells made further research