Cardiomyocyte Impedance Assays
- PMID: 25855850
- Bookshelf ID: NBK284984
Cardiomyocyte Impedance Assays
Excerpt
Cellular impedance assays have been broadly utilized as a label-free approach for toxicity and drug discovery screening. The xCELLigence RTCA Cardio instrument sets itself apart from other impedance technologies by its rapid data acquisition rate (12.9 msec). This speed is fast enough to detect the contractile activity of beating cardiomyocytes, offering a relatively high throughput and robust strategy to noninvasively monitor the effects of test compounds on cardiomyocyte function. This chapter introduces the fundamentals and applications of cardiomyocyte impedance assays. A protocol detailing cardiomyocyte culture, data acquisition, and data analysis using the xCELLigence RTCA Cardio system is provided and considerations for assay design and data interpretation are discussed.
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References
Literature Cited
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- Ciambrone, et al. Cellular dielectric spectroscopy: a powerful new approach to label-free cellular analysis. J Biomol Screen. 2004;9(6):467–480. - PubMed
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- Peters, et al. Evaluation of cellular impedance measures of cardiomyocyte cultures for drug screening applications. Assay Drug Dev Technol. 2012;10(6):525–532. - PubMed
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- Xi, et al. Functional cardiotoxicity profiling and screening using the xCELLigence RTCA Cardio System. J Lab Autom. 2011;16(6):415–421. - PubMed
Additional References
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- Lamore, et al. Cellular impedance assays for predictive preclinical drug screening of kinase inhibitor cardiovascular toxicity. Toxicol Sci. 2013;135(2):402–413. - PubMed
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- Himmel (2013) Drug-induced functional cardiotoxicity screening in stem cell-derived human and mouse cardiomyocytes: effects of reference compounds. J Pharmacol Toxicol Methods 68 (1), 97-111. - PubMed