In this video we demonstrate how to perform the lysosomal patch clamp technique to study ion channels on the lysosomal membrane.
Evaluating multiple endpoints including APD20/50/90 (action potential duration at different repolarisation stages), rise time, beat rate, and triangulation is crucial for assessing cardiovascular risk in drug discovery. It provides a comprehensive understanding of a compound's effects on cardiac electrophysiology. These endpoints collectively help identify proarrhythmic risks by detecting subtle changes in ion channel function that may not be apparent from a single parameter. APD20/50/90 measurements assess repolarisation dynamics, crucial for detecting the risk of QTc prolongation risks and early afterdepolarizations (EADs. Rise time reflects sodium channel activity and depolarization efficiency, while beat rate monitors drug-induced chronotropic effects. Triangulation (the difference between APD90 and APD30) is a key indicator of repolarization instability linked to Torsades de Pointes (TdP) risk.
By analysing multiple endpoints simultaneously, researchers can enhance the predictive accuracy of cardiac safety assessments, ensuring safer drug development and reducing the likelihood of late-stage failures due to cardiac toxicity.
Read more about our hiPSC cardiomyocyte assay.
In this video we demonstrate how to perform the lysosomal patch clamp technique to study ion channels on the lysosomal membrane.
This webinar presents data on sensory neuron ion channels, sensory neuron excitability and mechanism underlying trigeminal neuralgia.