title: Neutrophils at work.
abstract: In this Review we discuss data demonstrating recently recognized aspects of neutrophil homeostasis in the steady state, granulopoiesis in 'emergency' conditions and interactions of neutrophils with the adaptive immune system. We explore in vivo observations of the recruitment of neutrophils from blood to tissues in models of blood-borne infections versus bacterial invasion through epithelial linings. We examine data on novel aspects of the activation of NADPH oxidase and the heterogeneity of phagosomes and, finally, consider the importance of two neutrophil-derived biological agents: neutrophil extracellular traps and ectosomes.
authors.affiliation: Inflammation Program, Department of Medicine, Roy J. and Lucille A. Carver College of Medicine, University of Iowa, and Veterans Administration Medical Center, Iowa City, Iowa, USA.
authors.forename: William M
authors.initials: WM
authors.lastname: Nauseef
authors.affiliation: The Granulocyte Research Laboratory, Department of Hematology, National University Hospital, University of Copenhagen, Copenhagen, Denmark.
authors.forename: Niels
authors.initials: N
authors.lastname: Borregaard
mesh_terms: D000818:Animals; D001770:Blood Bactericidal Activity; D017848:Blood-Borne Pathogens; D002118:Calcium / Q000378:metabolism; D002465:Cell Movement; D006801:Humans; D007239:Infections / Q000276:immunology; D019255:NADPH Oxidases / Q000502:physiology; D009504:Neutrophils / Q000502:physiology*; D010588:Phagosomes / Q000276:immunology
chemical_list: D019255:NADPH Oxidases; D002118:Calcium