ResourceLife Sciences
Screening of GPCR-Antagonists Using the Calcium Mobilization Assay
18 Jul 2017This application note describes a study in which three compounds were screened for P2Y2 receptor inhibition using a calcium mobilization assay with two different fluorescent dyes. The fluorescence intensity signal was measured using a TriStar2 LB 942 plate reader. The basic principle behind the assay is described and the materials and methods detailed. It was found that the TriStar2 LB 942 could accurately screen test compounds for antagonist activity with precision and high reproducibility.
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Microplate Readers / DetectorsMicroplate readers are used to automate the detection and analysis of labeled or label-free components in microplates during assays or live-cell monitoring. Microplate readers are generally distinguished by their mode of detection. Types include absorbance, luminescence, fluorescence intensity, fluorescence polarization, TRF / FRET and multimode microplate readers. Microplate readers deliver a high throughput of samples by reading multiple wells simultaneously, with the 96-well format the most commonly used. As a result, microplate readers are often used in the drug discovery, bioassays, research and pharmaceutical industries for screening applications. Microplate loading can also be automated, with robotic microplate stackers to increase throughput. Find the best microplate readers in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.Cell-Based AssaysCell-based assays are used to monitor the presence, quantity and activities of a desired cellular analyte including drug molecules or biomarkers. This can reveal information on cell health (apoptosis, cytotoxicity, viability and proliferation assays), cell metabolism, cell migration and cell signaling mechanisms. Find the best cell-based assay products, kits and equipment with our peer reviewed product directory: compare products, check customer reviews and receiving pricing direct from manufacturers.FluorescenceThe emission of fluorescence occurs when a photon of energy is supplied to a fluorescent chemical compound by an external source, causing it to become excited. Fluorescence can be detected and measured for different purposes using microplate readers, fluorescence microscopes, fluorescence scanners, and flow cytometers.ReceptorsPharmaceuticalsPharmaceuticals are medicinal drugs used in healthcare to diagnose, prevent, cure and treat illnesses. Pharmaceuticals that are excreted after use appear in wastewater and can have detrimental effects on the environment.Compound ScreeningCompound screening is a method used to discover specific compounds that could be promising candidates for pharmaceutical use. This potential is identified when compounds interact with the target protein during screening and could therefore be carried forward in the drug development process.Drug Discovery & Development Screening