摘要The purpose of this study was to explore the effects of recombinant human intestinal alkaline phosphatase (recIAP) on human neutrophils in vitro, and the migration, phagocytosis, apoptosis in presence and absence of LPS. In this study, freshly extracted human neutrophils were used to establish an inflammatory cell model, and the control group, recIAP group, LPS group and recIAP +LPS group were set up to stimulate the model. The migration of neutrophils was detected by agarose gel drop method. Fluorescent particles and fluorescent probes were added to different treatment groups, and the phagocytic rate of neutrophils and the release of reactive oxygen species (ROS) from neutrophils were detected by flow cytometry. The apoptosis rate of neutrophils was detected by flow cytometry according to Annexin V-FITC apoptosis detection kit. The results showed that regardless of the presence or absence of LPS, recIAP could inhibit the migration of neutrophils, phagocytosis and the release of ROS. In addition, recIAP could weaken the inhibitory effect of LPS on neutrophils apoptosis.