单核吞噬细胞系统(包括大单核细胞、巨噬细胞)在特异和非特异免疫反应中具有重要作用。1.吞噬和消化以排除侵入机体内的微生物及其产物。2.捕捉和处理抗原及传递抗原信息;释放具有多种作用的生物活性因子,以调节淋巴细胞的增殖和活性。3.攻击靶细胞,特别对恶变细胞具有细胞毒作用。4.吞噬和处理衰老或死亡细胞,参与维持和执行自身稳定功能。 Mononuclear phagocyte systems, including large monocytes, macrophages, play an important role in specific and nonspecific immune responses. 1. Swallow and digest to exclude microorganisms and their products that invade the body. 2. Capturing and handling antigens and transmitting antigen information; releasing bioactive factors with multiple roles to regulate lymphocyte proliferation and activity. 3. Attack target cells, especially for malignant cells with cytotoxic effects. 4. Phagocytosis and handling of aging or dead cells involved in the maintenance and implementation of its own stability function.