A flow-through fluorescence polarization detection system for measuring GPCR-mediated modulation of cAMP production

J. Kool, A. van Marle, ST Hulscher, M. Selman, D.J. van Iperen, K. van Altena, M.R. Gillard, R.A. Bakker, H. Irth, R. Leurs, N.P.E. Vermeulen

Research output: Contribution to JournalArticleAcademicpeer-review

Abstract

A flow-through fluorescence polarization (FP) detection system that makes use of a novel high-performance liquid chromatography (HPLC) fluorescence detector modified with polarization filters was developed. This flow-through FP detection system was evaluated by using a novel and very cost-effective bioassay for cyclic adenosine monophosphate (cAMP). The bioassay was first evaluated and optimized in an FP plate reader format and subsequently in a flow-through bioassay setup. The principle of the bioassay is based on the competition of cAMP and a fluorescent cAMP derivative for the cAMP binding domain of protein kinase A. cAMP could accurately be determined over a range of 0.8 to 30 pmol/well in the plate reader FP assay and over a range of 0.3 to 50 pmol/well in the flow-through FP assay setup. High Z′ factors (i.e., 0.89 for the plate reader and 0.93 for the flow-through FP cAMP assay, respectively) indicated robust assays. Finally, functional cAMP signaling of the human histamine H
Original languageEnglish
Pages (from-to)1074-83
JournalJournal of Biomolecular Screening
Volume12
Issue number8
DOIs
Publication statusPublished - 2007

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