Title |
Quantification of particle-induced inflammatory stress response: a novel approach for toxicity testing of earth materials
|
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Published in |
Geochemical Transactions, April 2012
|
DOI | 10.1186/1467-4866-13-4 |
Pubmed ID | |
Authors |
Andrea D Harrington, Stella E Tsirka, Martin AA Schoonen |
Abstract |
Reactive oxygen species (ROS) are vital regulators of many cellular functions in the body. The intracellular ROS concentration is highly regulated by a balance between pro-oxidants and anti-oxidants. A chronic excess of pro-oxidants leads to elevated ROS concentrations and inflammation, possibly initiating or enhancing disease onset. Mineral-induced generation of ROS, the role of minerals in upregulating cellular ROS, and their role in the development of several occupational diseases are now widely recognized. However, there is no standard protocol to determine changes in ROS production in cells after exposure to mineral dust or earth materials in general. In this study, a new method for determining the degree of cellular toxicity (i.e., cytotoxicity) of particles is described that will help bridge the gap in knowledge. |
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