期刊
TOXICOLOGY IN VITRO
卷 23, 期 8, 页码 1570-1575出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tiv.2009.07.007
关键词
Genetic toxicology testing; In vitro; Invivo; High throughput; Comet assay; Automation; Standardization; Regulatory toxicology; GLP compliance; Comet slide; Comet protocol; Comet analysis; DNA damage
类别
Higher throughput methods, high content analysis and automated screening methods are of highest demand in drug development today. In toxicology, these strategies are becoming increasingly important, as well. Therefore, an integrated higher throughput method for the comet assay is addressed by the development presented here. The sensitivity, specificity and relevance of the comet assay as a method for determination of DNA damage in vivo and in vitro have been highlighted in many studies. Actually, efforts are made to include it in a panel of genotoxicity tests for regulatory purposes. However, the standard comet assay is a time consuming procedure due to the specific methods needed. The improvements presented here lead to a faster and easier slide-production, a smaller amount of cells needed, a higher amount of comets quantified, a fully automated analysis of comets including reanalysis, storing, visualisation and documentation possibilities using standard comet quantification models such as tail length or tail moment, and - by introduction of clearly definable selection criteria based on image analysis algorithms - clearly improve objectivity and standardization of the analysis procedure. Results prove the high reproducibility, flexibility, efficiency and suitability of the procedure as a fully automated analysis method in higher throughput genotoxicity testing in vitro. (C) 2009 Elsevier Ltd. All rights reserved.
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