Journal
DOKLADY NATSIONALNOI AKADEMII NAUK BELARUSI
Volume 64, Issue 4, Pages 448-456Publisher
BELARUSKAYA NAVUKA
DOI: 10.29235/1561-8323-2020-64-4-448-456
Keywords
human lymphocytes; zinc oxide nanorods and nanoparticles; viability; a label zinc pool; reactive oxygen species
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Funding
- BRFFR [17-128]
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A comparative analysis of the molecular process of nanostructured zinc oxide of different shape (rod and spherical particle) and zinc chloride as a source of free ions on human lymphocytes was carried out. Our data indicated that ZnO nanostructures induced a decrease in the lymphocyte viability and an increase in the intracellular labile Zn2+ pool in a concentration-dependent manner after 20 and 40 h incubation with cells. It was found that ZnO NRs have the lowest cytotoxicity, but ZnCl2 - the highest. The Zn-mediated activation of free radical processes - ROS accumulation in the cells is a possible mechanism of the cytotoxic action of these agents. Thus, the shape of ZnO nanomaterial and its ability to shed zinc ions make the main contribution to the detected molecular and membrane process on human lymphocytes in vitro.
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