Abstract
High-throughput live-cell screens are intricate elements of systems biology studies and drug discovery pipelines. Here, we demonstrate an optogenetics-assisted method that avoids the need for chemical activators and reporters, reduces the number of operational steps and increases information content in a cell-based small-molecule screen against human protein kinases, including an orphan receptor tyrosine kinase. This blueprint for all-optical screening can be adapted to many drug targets and cellular processes.
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Acknowledgements
We thank M. Ernst (Medical University of Vienna) for fruitful discussions, M. Spanova (IST Austria) for technical assistance, R. Chait (IST Austria) for photography, X. Amouretti and B. Harris (BioTek) for hardware specifications, R. Stahel (University of Zurich) for mesothelioma cells, and D.M. Chudakov (Shemiakin-Ovchinnikov Institute of Bioorganic Chemistry)/Evrogen (Moscow) for mKate2. This work was supported by grants from the European Union Seventh Framework Programme (CIG-303564 to H.J. and ERC-StG-311166 to S.M.B.N.), the Human Frontier Science Program (RGY0084_2012 to H.J.) and the Herzfelder Foundation (to M.G.). A.I.-P. was supported by a Ramon Areces fellowship, and E.R. by the graduate program MolecularDrugTargets (Austrian Science Fund (FWF): W 1232) and a FemTech fellowship (3580812 Austrian Research Promotion Agency).
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A.I.-P. designed, performed and analyzed all-optical experiments. E.R. designed, performed and analyzed internal reference experiments. M.K.M., M.N., S.M.B.N. and M.G. designed inhibitor library and experiments and provided reagents. H.J. conceived and supervised the project and designed and analyzed experiments. A.I.-P., E.R. and H.J. wrote the paper.
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Supplementary Results, Supplementary Figures 1–12 and Supplementary Tables 1–3. (PDF 1461 kb)
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Inglés-Prieto, Á., Reichhart, E., Muellner, M. et al. Light-assisted small-molecule screening against protein kinases. Nat Chem Biol 11, 952–954 (2015). https://doi.org/10.1038/nchembio.1933
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DOI: https://doi.org/10.1038/nchembio.1933
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