Validation of a Rb+ Uptake Assay for the Mouse Embryonic Stem Cell-Derived Cardiomyocytes Na+, K+ ATPase

被引:0
作者
Gill, Sikander [1 ]
Gill, Rajwant [1 ]
Liang, Sophia [1 ]
机构
[1] Aurora Biomed Inc, Dept R&D, Vancouver, BC V6A 1W2, Canada
关键词
D O I
10.1089/adt.2009.0206
中图分类号
Q5 [生物化学];
学科分类号
071010 ; 081704 ;
摘要
Human Na+, K+ ATPase, an ATP-driven ion transporter, is an emerging drug target for heart-related conditions. Three types of assays including purified enzyme, radiotracer flux, and cold Rb+ flux have been used to determine the activity of this transporter. As an alternative to primary cardiomyocytes, mouse embryonic stem cells-derived cardiomyocytes with functional expression of essential cardiac ion channels were used in the present studies. The results on its pharmacology with digitoxin and ouabain, the 2 well-known cardioglycosides, imply that these cardiomyocytes can be used as a predictive model for the identification of modulators of Na+, K+ ATPase in HTS format.
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页码:114 / 117
页数:4
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