Abstract
The family of G protein-coupled receptors (GPCRs) remains a central focus of basic pharmacology and drug discovery efforts. Convenient methods to assess the efficacy of potentially therapeutic reagents for GPCRs are strongly required for high-throughput screening (HTS) assay. We recently developed a rapid, sensitive, and quantitative method for detecting potential chemicals that act on GPCRs using split luciferase complementation. In principle, this is based on the detection of interactions of GPCR with β-arrestin, which translocates to the activated GPCRs. This method can facilitate the construction of HTS systems in a multi-well plate format. Particularly, the method is compatible with single-cell imaging and animal models and even deeper tissues such as organs, because of its high sensitivity, suggesting that promising candidates from HTS assay can be moved easily to the next phase for additional analysis. This system can contribute to the effective evaluation of potentially therapeutic reagents and expedite the development of new drugs for GPCRs.
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