吞噬细胞在吞噬和杀灭病原体中起重要作用。但若患者外周血吞噬细胞<200/mm~3或有功能障碍,则易并发感染,且难以控制。这时,应用粒细胞输入可望提高疗效。粒细胞生理及其制备粒细胞在趋化因子作用下,聚集于炎症灶,吞噬和杀灭病原体。当粒细胞吞噬病原体时,其吞噬泡中含有大量的致死辅助因子。 Phagocytes play an important role in engulfing and killing pathogens. However, if the peripheral blood of patients with phagocytic cells <200 / mm ~ 3 or dysfunction, then complicated by infection, and difficult to control. At this time, the application of granulocyte input is expected to improve the curative effect. Granulocyte physiology and its preparation Granulocytes in the role of chemokines, gathered in the inflammatory lesions, phagocytosis and kill pathogens. When granulocytes phagocytize pathogens, phagosomes contain a large number of lethal cofactors.