title: Some characteristics of free cell population in the airways of rats after intratracheal instillation of copper-containing nano-scale particles.
abstract: We used stable water suspensions of copper oxide particles with mean diameter 20 nm and of particles containing copper oxide and element copper with mean diameter 340 nm to assess the pulmonary phagocytosis response of rats to a single intratracheal instillation of these suspensions using optical, transmission electron, and semi-contact atomic force microscopy and biochemical indices measured in the bronchoalveolar lavage fluid. Although both nano and submicron ultrafine particles were adversely bioactive, the former were found to be more toxic for lungs as compared with the latter while evoking more pronounced defense recruitment of alveolar macrophages and especially of neutrophil leukocytes and more active phagocytosis. Based on our results and literature data, we consider both copper solubilization and direct contact with cellular organelles (mainly, mitochondria) of persistent particles internalized by phagocytes as probable mechanisms of their cytotoxicity.
authors.affiliation: The Medical Research Center for Prophylaxis and Health Protection in Industrial Workers, 30 Popov Str., Ekaterinburg 620014, Russia. privalovali@yahoo.com.
authors.forename: Larisa I
authors.initials: LI
authors.lastname: Privalova
authors.affiliation: The Medical Research Center for Prophylaxis and Health Protection in Industrial Workers, 30 Popov Str., Ekaterinburg 620014, Russia. bkaznelson@etel.ru.
authors.forename: Boris A
authors.initials: BA
authors.lastname: Katsnelson
authors.affiliation: The Medical Research Center for Prophylaxis and Health Protection in Industrial Workers, 30 Popov Str., Ekaterinburg 620014, Russia. loginova.Nadzhda@mail.ru.
authors.forename: Nadezhda V
authors.initials: NV
authors.lastname: Loginova
authors.affiliation: The Medical Research Center for Prophylaxis and Health Protection in Industrial Workers, 30 Popov Str., Ekaterinburg 620014, Russia. gurvich@ymrc.ru.
authors.forename: Vladimir B
authors.initials: VB
authors.lastname: Gurvich
authors.affiliation: The Institute of Natural Sciences, the Ural Federal University, Ekaterinburg 620000, Russia. vladimir.shur@usu.ru.
authors.forename: Vladimir Y
authors.initials: VY
authors.lastname: Shur
authors.affiliation: The City Clinical Diagnostics Centre, 28 Dekabristov Str., Ekaterinburg 620142, Russia. beikin@mail.ru.
authors.forename: Yakov B
authors.initials: YB
authors.lastname: Beikin
authors.affiliation: The Medical Research Center for Prophylaxis and Health Protection in Industrial Workers, 30 Popov Str., Ekaterinburg 620014, Russia. sutunkova@ymrc.ru.
authors.forename: Marina P
authors.initials: MP
authors.lastname: Sutunkova
authors.affiliation: The Medical Research Center for Prophylaxis and Health Protection in Industrial Workers, 30 Popov Str., Ekaterinburg 620014, Russia. ilzira-minigalieva@yandex.ru.
authors.forename: Ilzira A
authors.initials: IA
authors.lastname: Minigalieva
authors.affiliation: The Institute of Natural Sciences, the Ural Federal University, Ekaterinburg 620000, Russia. ekaterina.shishkina@labfer.usu.ru.
authors.forename: Ekaterina V
authors.initials: EV
authors.lastname: Shishkina
authors.affiliation: The City Clinical Diagnostics Centre, 28 Dekabristov Str., Ekaterinburg 620142, Russia. ekb-lem@mail.ru.
authors.forename: Svetlana V
authors.initials: SV
authors.lastname: Pichugova
authors.affiliation: The City Clinical Diagnostics Centre, 28 Dekabristov Str., Ekaterinburg 620142, Russia. sdiklein@gmail.com.
authors.forename: Ludmila G
authors.initials: LG
authors.lastname: Tulakina
authors.affiliation: The City Clinical Diagnostics Centre, 28 Dekabristov Str., Ekaterinburg 620142, Russia. kdc_boss@mail.ru.
authors.forename: Svetlana V
authors.initials: SV
authors.lastname: Beljayeva
mesh_terms: D000818:Animals; D001992:Bronchoalveolar Lavage Fluid; D003300:Copper / Q000008:administration & dosage*; D005260:Female; D007442:Intubation, Intratracheal / Q000379:methods; D008168:Lung / Q000187:drug effects*; D016676:Macrophages, Alveolar / Q000187:drug effects; D053758:Nanoparticles / Q000008:administration & dosage*; D009504:Neutrophils / Q000187:drug effects; D010316:Particle Size; D010587:Phagocytosis / Q000187:drug effects; D051381:Rats; D013535:Suspensions / Q000008:administration & dosage
chemical_list: D013535:Suspensions; D003300:Copper; C000520:cuprous oxide