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Assessing the Variability of hERG Data Generated Using a Mock Action Potential Waveform and Automated Patch Clamp Platforms

The HESI Cardiac Safety Committee present results from an international ion channel research study that assessed the variability of hERG data generated using automated patch clamp platforms (QPatch 48, Qube 384 and the SyncroPatch 384i) across four different labs.

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Using high-throughput automated patch clamp electrophysiology to identify novel TREK-1 modulators in an animal venom library

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).

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Specialist Neuroscience Services Brochure

Highly specialised and tailored neuronal assays for pharmacological screening.

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Cardiac Safety Screening Services

Reliably evaluate the proarrhythmic and cardiotoxic liabilities of your compounds.

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Ion Channel and HTS Services

Specialist ion channel screening to accelerate early-stage screening and lead optimisation.

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Development and validation of a dual modality TREK-1 screening assay on the automated patch clamp Qube 384 platform

We report the development and optimisation of a TREK-1 functional assay using the Qube 384, an automated patch clamp platform capable of supporting high-throughput screening. The assay was optimized to identify both activators and inhibitors on the same plate, providing key mechanistic data for high value, limited supply screening libraries such as venom fractions used in this study (Targeted Venom Discovery Array, TVDA, Venomtech, UK).

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Scientifica PatchScope Pro: an integrated calcium-imaging and patch-clamp system suitable for selecting specific subsets of neurons for electrophysiology recordings

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.

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Fluorescence-based drug repurposing screen of the potassium channel, KV3.1 with V434L mutation

KV3.1 is a voltage-gated potassium channel encoded by the KCNC1 gene. Mutations in the KV3.1 protein can manifest as a variety of neurological disorders including myoclonic epilepsy and ataxia due to K+ channel mutation (MEAK), developmental epileptic encephalopathy (DEE), or hypotonia.

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Supporting an integrated QTc risk assessment using the hERG margin distributions for three positive control agents derived from multiple laboratories and on multiple occasions

Derek J. Leishman, Jessica Brimecombe, William Crumb, Simon Hebeisen, Steve Jenkinson, Peter J. Kilfoil, Hiroshi Matsukawa, Karim Melliti, Yusheng Qu, Journal of Pharmacological and Toxicological Methods, Volume 128, 2024, 107524, ISSN 1056-8719. DOI: 10.1007/978-3-031-52197-3

Copyright prevents linking to the article.

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Development of TRPML1-4A assays across manual, automated patch-clamp, and fluorescence-based platforms

The development and validation of electrophysiological assays to study TRPML1 is important to understand the function and pharmacology of the channel. We used a TRPML1 variant that lacks the endo-lysosomal retention sequences (TRPML1-4A), enabling the channel to express at the plasma membrane3. As such channel behaviour can be characterised by means of whole-cell patch-clamp and fluorescence-based techniques.

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