LYSO-Prep™ for organellar electrophysiology: A new tool for high throughput measurement of lysosomal TRPML1 channels using the SyncroPatch 384, SURFE2R N1 and SURFE2R 96SE
with Nanion Technologies
The gold standard to functionally characterize lysosomal ion channels remains manual patch clamp recordings of enlarged individual lysosomes isolated from individual cells1. This technique is time-consuming and technically challenging, but other electrophysiological techniques are beginning to overcome these challenges, resulting in higher throughput characterization of isolated lysosomes. One of these techniques is automated patch clamp (APC), which uses a planar glass substrate for whole lysosome patch clamp recordings. When using lysosomes with APC, it is still necessary to isolate the lysosomes from the cell, which can be a lengthy process and requires precise timing in order to be used effectively with APC. Another technique to assess lysosomal ion channels is solid-supported membrane-based electrophysiology (SSME). This emergent method has been successfully used to record native lysosomes isolated using sequential centrifugation steps.