Ultrabright and Fluorogenic Probes for Multicolor Imaging and Tracking of Lipid Droplets in Cells and Tissues

Autor: Tkhe Kyong Fam, Thierry Galli, Andrey S. Klymchenko, Pichandi Ashokkumar, Lydia Danglot, Mayeul Collot, Orestis Faklaris
Přispěvatelé: Laboratoire de Bioimagerie et Pathologies (LBP), Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Biophotonique et Pharmacologie (CNRS UMR 7213), Centre National de la Recherche Scientifique (CNRS), Laboratoire de Biophotonique et Pharmacologie - UMR 7213 (LBP), Centre National de la Recherche Scientifique (CNRS)-Réseau nanophotonique et optique, Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))
Rok vydání: 2018
Předmět:
Zdroj: Journal of the American Chemical Society
Journal of the American Chemical Society, American Chemical Society, 2018, 140 (16), ⟨10.1021/jacs.7b12817⟩
ISSN: 1520-5126
0002-7863
DOI: 10.1021/jacs.7b12817⟩
Popis: Lipid droplets (LDs) are intracellular lipid-rich organelles that regulate the storage of neutral lipids and were recently found to be involved in many physiological processes, metabolic disorders, and diseases including obesity, diabetes, and cancers. Herein we present a family of new fluorogenic merocyanine fluorophores based on an indolenine moiety and a dioxaborine barbiturate derivative. These so-called StatoMerocyanines (SMCy) fluoresce from yellow to the near-infrared (NIR) in oil with an impressive fluorescence enhancement compared to aqueous media. Additionally, SMCy display remarkably high molar extinction coefficients (up to 390 000 M–1 cm–1) and high quantum yield values (up to 100%). All the members of this new family specifically stain the LDs in live cells with very low background noise. Unlike Nile Red, a well-known lipid droplet marker, SMCy dyes possess narrow absorption and emission bands in the visible, thus allowing multicolor imaging. SMCy proved to be compatible with fixation and le...
Databáze: OpenAIRE