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Cardiac Ion Channels - "Simultaneous Assessment of CiPA Stipulated Ion Channels on the SyncroPatch 384PE"

icon sp96   SyncroPatch 384PE (a predecessor model of SyncroPatch 384i) application note   logo pdf   (1.3 MB)
Cells were kindly provided by Charles River.

Summary:

The cardiac action potential is defined by multiple voltage-dependent ion channels. A drug candidate’s capacity to interact with the ion channels involved in the depolarization or repolarization phases of the cardiac action potential is important for drug safety assessment. Until now, safety testing has focussed on interaction with the hERG channel and QT prolongation which can lead to potentially fatal torsades de pointes (TdP). Although this approach has been largely successful in preventing new drugs reaching the market with unexpected potential to cause TdP, it is also possible that potentially valuable therapeutics have failed due to this early screening. A new paradigm, the Comprehensive In-vitro Proarrhythmia Assay (CiPA), was introduced in 2013 to provide a more complete assessment of proarrythmic risk. An assessment of a multitude of cardiac ion channels, in addition to hERG, should provide a more accurate prediction of the proarrythmic risk of a compound compared with testing on hERG alone. Here we show recordings from HEK or CHO cells expressing the CiPA stipulated ion channels; NaV1.5, CaV1.2, hERG, KV7.1, Kir2.1 or KV4.3, activated within one single experiment on the SyncroPatch 384PE.

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