Cardiac Ion Channels - "High Throughput Screening of Cardiac Ion Channels"

icon sp96   SyncroPatch 384PE (a predecessor model of the SyncroPatch 384)   icon pl   Patchliner   Icon CE   CardioExcyte 96 application note   logo pdf   (2.3 MB)


In 2013 the Cardiac Safety Research Consortium (CSRC), the Health and Environmental Sciences Institute (HESI), and the US Food and Drug Administration (FDA) proposed a new paradigm to improve assessment of the proarrythmic risk of therapeutic compounds. Until now, drug 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. The new paradigm, the Comprehensive In-vitro Proarrhythmia Assay (CiPA) was introduced to provide a more complete assessment of proarrythmic risk by evaluating and implementing currently available high throughput methods. An important part of this remains electrophysiological evaluation of not only hERG, but also other cardiac channels including NaV1.5, CaV1.2, KVLQT1 and Kir2.1. Additionally, new technologies, such as impedance measurements, and cells such as stem cell-derived cardiomyocytes, may provide useful tools for high throughput safety assessment. Here, we present high quality data with reliable pharmacology on hERG expressing CHO cells, NaV1.5, CaV1.2 or KVLQT1 expressed in HEK293 cells and Kir2.1 expressed in RBL cells on the SyncroPatch 384PE or Patchliner. Additionally, electrophysiological recordings on the Patchliner and Impedance measurements on the CardioExcyte 96 of stem cell-derived cardiomyocytes are shown.

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