title: Generation of membrane structures during phagocytosis and chemotaxis of macrophages: role and regulation of the actin cytoskeleton.
abstract: Macrophages are best known for their protective search and destroy functions against invading microorganisms. These processes are commonly known as chemotaxis and phagocytosis. Both of these processes require actin cytoskeletal remodeling to produce distinct F-actin-rich membrane structures called lamellipodia and phagocytic cups. This review will focus on the mechanisms by which macrophages regulate actin polymerization through initial receptor signaling and subsequent Arp2/3 activation by nucleation-promoting factors like the WASP/WAVE family, followed by remodeling of actin networks to produce these very distinct structures.
authors.affiliation: Department of Anatomy and Structural Biology, Albert Einstein College of Medicine, Bronx, NY, USA.
authors.forename: Pablo
authors.initials: P
authors.lastname: Rougerie
authors.forename: Veronika
authors.initials: V
authors.lastname: Miskolci
authors.forename: Dianne
authors.initials: D
authors.lastname: Cox
mesh_terms: D008841:Actin Cytoskeleton / Q000502:physiology; D000818:Animals; D002462:Cell Membrane / Q000378:metabolism*; D002633:Chemotaxis / Q000502:physiology*; D006801:Humans; D016177:Macrophage-1 Antigen / Q000276:immunology / Q000378:metabolism; D008264:Macrophages / Q000502:physiology*; D010587:Phagocytosis / Q000502:physiology*; D017452:Receptors, IgG / Q000378:metabolism
chemical_list: D016177:Macrophage-1 Antigen; D017452:Receptors, IgG
keywords: Arp2/3; CSF-1; GPCR; WASP/WAVE; chemotaxis; phagocytosis