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FLIPR Detection System

Ion channels are an important drug target in pharmaceutical industry. Traditionally, patch clamping, the gold standard, has been the method of choice for measuring changes in membrane potential. Although it is the most informative, this method is very labor-intensive and time-consuming. It does not provide the solution for high-throughput drug screening of ion channels. To reach high throughput screening, Creative Bioarray provides the FLIPR High-Throughput Cellular Screening System which is capable of simultaneous fluid dispensing and signal detection.


4-3-7 FLIPR Detection System-1.jpg

Fig. 1 Scheme of test compound plate preparation.


Since calcium ions (Ca2+) play a key role in cellular homeostasis, among all the potential ion channel targets, calcium channel and GPCR are more frequently researched. Their functions are involved in calcium dynamics which play a critical role in many disease pathologies. Ca2+ also functions in the electrophysiology of the heart (regulate the activities of motor proteins necessary for cardiac contraction) and neurons (regulate neuronal functions). Ca2+ plays a critical role in the direct acute drug effects on electrophysiology can be detected by monitoring Ca2+ transients, making it a valuable tool in drug discovery and safety pharmacology assessment. FLIPR technology measuring Ca2+ flux in cells was an important development in the early 1990's and has played a significant role in HTS and lead optimization applications. Upon treatment with a calcium fluorescent dye, real-time changes in fluorescent calcium transients can be measured in Cardiomyocytes or cell line (expressing GPCRs, ion Channels, and coupling proteins) at a high-throughput.

Although FLIPR is devoted to Ca2+ channel based assay development, the FLIPR system is also useful for measuring potassium and other ion flux in cells with appropriate fluorescent dyes. FLIPR system in Creative Bioarray provides a fast, simple and reliable fluorescence assay for detecting changes in membrane potential. This assay provides a level of information approaching that of patch clamping. In combination with the FLIPR system, it provides a very good system for high-throughput screening of ion channel drug targets.

In Creative Bioarray, our FLIPR High-Throughput Cellular Screening System provides an automated solution for identifying early leads in the drug discovery process and for evaluating drug efficacy and toxicity. For this FLIPR system we provide multiple suitable fluorescent dyes (e.g. Fluo-3AMA, Calcein 4, etc) for selection according to customer's requirements. Multiple detection modes (easily switching between fluorescence and luminescence read modes) are available. by using our FIPR system. Creative Bioarray FLIPR screening system is equipped with seven fluorescence LED sets with many filter options and optional aequorin luminescence detection available for single wavelength and ratiometric assays.

Application

  • Cardiac safety assessment

    Calcium transients were determined to analyze specific cardioactive compound response parameters, including peak frequency, peak amplitudes, and average peak width

  • GPCR Targets Coupled to Ca2+ Mobilization

  • Ion Channels with Significant Ca2+ Permeability

  • Ion Channels which Produce Significant Changes in Membrane Potential

Creative Bioarray's FLIPR System is one example of innovative, high-performance products that significantly enhances research productivity and effectiveness. Designed expressly to meet the needs of research professionals in drug discovery and other advanced research, it delivers the industry-leading capabilities required for accelerating time to market for new products. With simultaneous pipette and read function, our FLIPR system supports fast kinetic cellular assays. It can be quickly configured based on library size, detection mode, screening format, assay and target. As a fully integrated solution, the transition from assay development to lead optimization is seamless.


4-3-7 FLIPR Detection System-2.jpg

Fig. 2 Kinetic traces recorded by the FLIPR and response value computation.


Highlights

  • Accelerate throughput

  • Customize protocols and data processing

  • Deliver cells in suspension

  • Increase assay flexibility

  • Enable more assays

Creative Bioarray's FLIPR system supports an incredible range of assays including calcium, cardiotoxicity, potassium, and membrane potential. Our experienced research team provides detailed materials and methods used in the assay, and solutions to some commonly encountered problems.

Reference

  1. di Silvio A, et al. Identification of State-Dependent Blockers for Voltage-Gated Calcium Channels Using a FLIPR-Based Assay[M]//High Throughput Screening. Humana Press, New York, NY, 2016: 197-206.


For research use only.

Related Section

  • Manual Patch-clamp Technique
  • Automated Patch-clamp
  • Multi-Electrode Array (MEA)
  • FluxOR™ Thallium Assay
  • Optogenetics
  • Neuronal Tract Tracing

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