机体的免疫反应多是由 T 细胞、B 细胞和巨噬细胞的协同作用完成的。T 细胞按其功能又分为几个亚组:1)辅助 T 细胞,能帮助 B 细胞产生抗体。2)抑制 T 细胞,能抑制 B 细胞产生抗体。此外还有抑制杀伤 T细胞和迟发变态反应 T 细胞的前驱细胞分化的抑制 T 细胞。3)增强 T 细胞,能增强杀伤 T 细胞、辅助 T 细胞和迟发型变态反应 T细胞的分化。T 细胞虽有以上几种,其中抑 The body’s immune response and more by T cells, B cells and macrophages synergy completed. T cells according to their function is divided into several subgroups: 1) helper T cells, can help B cells produce antibodies. 2) Inhibit T cells and inhibit B cells from producing antibodies. In addition, there are suppressor T cells that inhibit the differentiation of killer T cells and de novo precursor T cells. 3) Enhance T cells, can enhance the killing of T cells, helper T cells and delayed type of allergic T cell differentiation. Although the above T cells, which inhibit