Phagosome maturation: aging gracefully [Review]

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摘要：

Foreign particles and apoptotic bodies are eliminated from the body by phagocytic leucocytes. The initial stage of the elimination process is the internalization of the particles into a plasma membrane-derived vacuole known as the phagosome. Such nascent phagosomes, however, lack the ability to kill pathogens or to degrade the ingested targets. These properties are acquired during the course of phagosomal maturation, a complex sequence of reactions that result in drastic remodelling of the phagosomal membrane and contents. The determinants and consequences of the fusion and fission reactions that underlie phagosomal maturation are the topic of this review.

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关键词：

Endocytosis Macrophage Neutrophil Phagocytosis Phosphoinositide Receptor-mediated phagocytosis Adp-ribosylation factor Late endosome-lysosome Mouse peritoneal-macrophages Intracellular free calcium Actin filament nucleation Epidermal growth-factor Early endocytic pathway Gtp-binding protein Phosphatidylinositol 3-kinase