Combination of small molecule microarray and confocal microscopy techniques for live cell staining fluorescent dye discovery

Molnár, Eszter and Kuntam, Soujanya and Cingaram, Pradeep Kumar Reddy and Peksel, Begüm and Fábián, Gabriella and Bokros, Attila and Puskás, László G. (2013) Combination of small molecule microarray and confocal microscopy techniques for live cell staining fluorescent dye discovery. MOLECULES, 18 (8). pp. 9999-10013. ISSN 1420-3049

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Abstract

Discovering new fluorochromes is significantly advanced by high-throughput screening (HTS) methods. In the present study a combination of small molecule microarray (SMM) prescreening and confocal laser scanning microscopy (CLSM) was developed in order to discover novel cell staining fluorescent dyes. Compounds with high native fluorescence were selected from a 14,585-member library and further tested on living cells under the microscope. Eleven compartment- specific, cell-permeable (or plasma membrane-targeted) fluorochromes were identified. Their cytotoxicity was tested and found that between 1-10 micromolar range, they were non-toxic even during long-term incubations. © 2013 by the authors; licensee MDPI, Basel, Switzerland.

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