To provide a more thorough and predictive cardiac safety profile of new chemical entities, the FDA is introducing the Comprehensive in vitro Proarrhythmia Assay (CiPA) initiative. To allow the successful integration of human induced pluripotent stem cell-derived cardiomyocytes (iPSC-CM) as a translational model of human cardiac tissue their physiology needs to be fully characterised.
Here we highlight the work performed at Metrion Biosciences in collaboration with Cellular Dynamics International (CDI) to assess the utility of CDI iCell2 ventricular iPSC-CM for cardiotoxicity screening.
We developed a high-throughput, electrophysiological assay of TREK-1 function to identify novel modulators. The assay was optimized to identify both activators and inhibitors, providing comprehensive mechanistic data for high value, limited supply screening libraries, such as the venom fraction library used in this study (Targeted Venom Discovery Array, T-VDA, Venomtech, UK).
Scientifica’s PatchScope Pro is an integrated electrophysiology rig incorporating an inverted phase-contrast fluorescence microscope, motorised XY stage and PatchStar micromanipulators, suitable for patch-clamp recording.