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Updated: Mar 20, 2026

A Kinetic Fluorescence-based Ca2+ Mobilization Assay to Identify G Protein-coupled Receptor Agonists, Antagonists, and Allosteric Modulators
Published on: February 20, 2018
Scrape Loading/Dye Transfer Assay
Pavel Babica1, Iva Sovadinová2, Brad L Upham3
1RECETOX-Research Centre for Toxic Compounds in the Environment, Masaryk University, Kamenice 753/5, Brno, 62500, Czech Republic. babica@recetox.muni.cz.
Abstract:
The scrape loading/dye transfer (SL/DT) technique is a simple functional assay for the simultaneous assessment of gap junctional intercellular communication (GJIC) in a large population of cells. The equipment needs are minimal and are typically met in standard cell biology labs, and SL/DT is the simplest and quickest of all the assays that measure GJIC. This assay has also been adapted for in vivo studies. The SL/DT assay is also conducive to a high-throughput setup with automated fluorescence microscopy imaging and analysis to elucidate more samples in shorter time, and hence can serve a broad range of in vitro pharmacological and toxicological needs.

