• SURFE²R 96SE

    トランスポーターの完全自動記録/解析. 10,000データポイント/日!
  • SURFE²R 96SE

    市場初のSSM-電気生理学によるハイスループット評価系
  • SURFE²R 96SE

    ラベルフリーでトランスポーターのファンクショナルHTSアッセイ系を遂に実現
  • SURFE²R 96SE

    パッチクランプ法を超えるシグナル増幅率
  • SURFE²R 96SE

    トランスポータ解析のターンキーシステム

2021 - A Solid Supported Membrane-Based Technology for Electrophysical Screening of B0AT1-Modulating Compounds

Icon 96SE   SURFE²R 96SE Publication in SLAS DISCOVERY: Advancing the Science of Drug Discovery. (2021)

Authors:
Gerbeth-Kreul C., Pommereau A., Ruf S., Kane Jr J.L., Kuntzweiler T., Hessler G., Engel C.K., Shum P., Wei L., Czech J., Licher T.

Journal:
SLAS DISCOVERY: Advancing the Science of Drug Discovery (2021) doi: 10.1177/24725552211011180


Abstract:

Classical high-throughput screening (HTS) technologies for the analysis of ionic currents across biological membranes can be performed using fluorescence-based, radioactive, and mass spectrometry (MS)-based uptake assays. These assays provide rapid results for pharmacological HTS, but the underlying, indirect analytical character of these assays can be linked to high false-positive hit rates. Thus, orthogonal and secondary assays using more biological target-based technologies are indispensable for further compound validation and optimization. Direct assay technologies for transporter proteins are electrophysiology-based, but are also complex, time-consuming, and not well applicable for automated profiling purposes. In contrast to conventional patch clamp systems, solid supported membrane (SSM)-based electrophysiology is a sensitive, membrane-based method for transporter analysis, and current technical developments target the demand for automated, accelerated, and sensitive assays for transporter-directed compound screening. In this study, the suitability of the SSM based technique for pharmacological compound identification and optimization was evaluated performing cell-free SSMbased measurements with the electrogenic amino acid transporter B0AT1 (SLC6A19). Electrophysiological characterization of leucine-induced currents demonstrated that the observed signals were specific to B0AT1. Moreover, B0 AT1-dependent responses were successfully inhibited using an established in-house tool compound. Evaluation of current stability and data reproducibility verified the robustness and reliability of the applied assay. Active compounds from primary screens of large compound libraries were validated, and false-positive hits were identified. These results clearly demonstrate the suitability of the SSM-based technique as a direct electrophysiological method for rapid and automated identification of small molecules that can inhibit B0AT1 activity


Download here

Back

We use cookies on our website. Some of them are essential for the operation of the site, while others help us to improve this site and the user experience (tracking cookies). You can decide for yourself whether you want to allow cookies or not. Please note that if you reject them, you may not be able to use all the functionalities of the site.