title: Redox-sensitive probes for the measurement of redox chemistries within phagosomes of macrophages and dendritic cells.
abstract: There is currently much interest in factors that affect redox chemistries within phagosomes of macrophages and dendritic cells. In addition to the antimicrobial role of reactive oxygen species generation within phagosomes, accumulating evidence suggests that phagosomal redox chemistries influence other phagosomal functions such as macromolecular degradation and antigen processing. Whilst the redox chemistries within many sub-cellular compartments are being heavily scrutinized with the increasing use of fluorescent probe technologies, there is a paucity of tools to assess redox conditions within phagosomes. Hence the systems that control redox homeostasis in these unique environments remain poorly defined. This review highlights current redox-sensitive probes that can measure oxidative or reductive activity in phagosomes and discusses their suitability and limitations of use. Probes that are easily targeted to the phagosome by using established approaches are emphasized.
authors.affiliation: Department of Comparative Biology and Experimental Medicine, Faculty of Veterinary Medicine, Calgary, AB, Canada T2N 4N1 ; Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Calgary, Calgary, AB, Canada T2N 4N1.
authors.forename: Dale R
authors.initials: DR
authors.lastname: Balce
authors.forename: Robin M
authors.initials: RM
authors.lastname: Yates
mesh_terms: D000818:Animals; D003713:Dendritic Cells / Q000166:cytology* / Q000378:metabolism*; D006801:Humans; D008264:Macrophages / Q000166:cytology* / Q000378:metabolism*; D010084:Oxidation-Reduction; D010588:Phagosomes / Q000378:metabolism*; D017382:Reactive Oxygen Species / Q000378:metabolism
chemical_list: D017382:Reactive Oxygen Species
keywords: Dendritic cell; Macrophage; Phagosome; Probes; Redox