Testing particulate matter toxicity via in vitro methods: What should be tested?

Wlodarczyk, Anna Julia and Berube, Kelly Ann ORCID: https://orcid.org/0000-0002-7471-7229 2013. Testing particulate matter toxicity via in vitro methods: What should be tested? Presented at: European Aerosol Conference 2013, Prague, Czech Republic, 1-6 September 2013. Published in: Drahas, Jiri and Hampl, Vaclav eds.

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Abstract

Unlike other toxic substances, usually of a known chemical formula, air particulate matter (PM) is a mixture of solid and liquid particles. The most frequently used tests are in vitro in nature and examine ‘cell viability’ following 24-hour exposure to PM. In most cases, PM induces sub-toxic viability responses but other key cell functions are not detected. The aim of this study was to compare the toxicity profiles of engineered NPs: zinc oxide (ZnO), crystalline form of silicon oxide (SiO2), and nickel (Ni), which are frequently present in ambient air pollution. Three different assays (acellular and cellular) were chosen to test PM biological targets: (1) plasmid scission assay – detecting DNA damage (indicative of the ability to produce reactive oxygen species; ROS; Figure 1); (2) haemolysis assay – informing about red blood cells (RBCs) membranes integrity; (3) proliferation assay inspected on HUVEC (human umbilical vein endothelial cells) at 24, 48 and 72 hours post-exposure to NPs.

Item Type:	Conference or Workshop Item (Poster)
Date Type:	Completion
Status:	Unpublished
Schools:	Biosciences
Subjects:	Q Science > QH Natural history > QH426 Genetics
Related URLs:	Organisation Organisation
Date of First Compliant Deposit:	30 March 2016
Last Modified:	25 Oct 2022 08:03
URI:	https://orca.cardiff.ac.uk/id/eprint/51202

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