免疫反应中存在一类具有抑制功能的细胞,它们在免疫调节中起重要作用。这类细胞包括抑制性T细胞(Ts)、抑制性B细胞及抑制性巨噬细胞等。近年来观察到存在另一种非特异性抑制细胞,此细胞具有抑制自体和异体体液免疫及细胞免疫反应的作用,能抑制淋巴细胞增殖反应,胸腺依赖 There is a class of inhibitory cells in the immune response that play an important role in immune regulation. Such cells include inhibitory T cells (Ts), inhibitory B cells and inhibitory macrophages. In recent years, it has been observed that there is another nonspecific suppressor cell which has the effects of inhibiting autologous and allogenic humoral and cellular immune responses, inhibiting lymphocyte proliferation response, thymus dependence