作者: Stephan Hackenberg , Agmal Scherzed , Antje Technau , Michael Kessler , Katrin Froelich
DOI: 10.1016/J.TIV.2011.01.003
关键词: In vitro 、 Interleukin 8 、 Cytotoxic T cell 、 Molecular biology 、 Intracellular 、 Genotoxicity 、 Zinc 、 Pathology 、 Comet assay 、 Mucous membrane of nose 、 Chemistry
摘要: Abstract Despite increasing application of zinc oxide nanoparticles (ZnO-NPs) for industrial porpuses, data about potential toxic properties is contradictory. The current study focused on the cyto- and genotoxicity ZnO-NPs in comparison to ZnO powder primary human nasal mucosa cells cultured air–liquid interface. Additionally, IL-8 secretion as a marker pro-inflammatory effects was measured. Particle morphology intracellular distribution were evaluated by transmission electron microscopy (TEM). transferred into cytoplasm 10% cells, whereas an intranuclear could only be observed 1.5%. While no or seen dimethylthiazolyl-diphenyl-tetrazolium-bromide (MTT) test, trypan blue exclusion single-cell microgel electrophoresis (comet) assay, cytotoxic shown at ZnO-NP concentration 50 μg/ml (P