Journal
JOURNAL OF TRACE ELEMENTS IN MEDICINE AND BIOLOGY
Volume 60, Issue -, Pages -Publisher
ELSEVIER GMBH
DOI: 10.1016/j.jtemb.2020.126481
Keywords
Copper/Copper oxide nanoparticles (Cu/CuONPs); Human lung normal cell lines (WI-38 cells); Human lung carcinoma cell lines (A549 cells); Toxicity; Oxidative stress; Comet assay; DNA
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Background: Nanotoxicology is a major field of study that reveals hazard effects of nanomaterials on the living cells. Methods: In the present study, Copper/Copper oxide nanoparticles (Cu/CuO NPs) were prepared by the chemical reduction method and characterized by different techniques such as: X-Ray Diffraction, Transmission and Scanning Electron Microscopy. Evaluation of the toxicity of Cu/CuO NPs was performed on 2 types of cells: human lung normal cell lines (WI-38) and human lung carcinoma cell (A549). To assess the toxicity of the prepared Cu/CuOs NPs, the two cell types were exposed to Cu/CuO NPs for 72 h. The half-maximal inhibitory concentration IC50 of Cu/CuO NPs for both cell types was separately determined and used to examine the cell genotoxicity concurrently with the determination of some oxidative stress parameters: nitric oxide, glutathione reduced, hydrogen peroxide, malondialdehyde and superoxide dismutase. Results: Cu/CuO NPs suppressed proliferation and viability of normal and carcinoma lung cells. Treatment of both cell types with their IC50's of Cu/CuO NPs resulted in DNA damage besides the generation of reactive oxygen species and consequently the generation of a state of oxidative stress. Conclusion: Overall, it can be concluded that the IC50's of the prepared Cu/CuO NPs were cytotoxic and genotoxic to both normal and cancerous lung cells.
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