Abstract
G protein-coupled receptor (GPCR) signaling cascades regulate a wide variety of cellular processes and feature prominently in many cardiovascular pathologies. As such they represent major drug targets and discovering novel aspects of GPCR signaling provide important opportunities to identify additional potential therapeutic approaches to reverse or prevent cardiac remodeling and failure. Monitoring cellular trafficking of signaling components and specific protein kinase activities using fluorescent biosensors has provided key insight into stress/GPCR-induced kinase signaling networks and their effect on cardiac gene expression. Herein we describe the protocols for the expression, visualization (by confocal microscopy), and interpretation of data obtained with such biosensors expressed in adult cardiomyocytes. Our focus is on the cellular trafficking of class II histone deacetylases (i.e., HDAC5) and on the FRET sensor (Camui) for calmodulin-dependent protein kinase II (CaMKII).
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Acknowledgements
This work was supported by NIH grants P01 HL080101 and R37 HL30077 (DMB) and R01 HL103933 (J.B.).
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Bossuyt, J., Bers, D.M. (2015). Assessing GPCR and G Protein Signaling to the Nucleus in Live Cells Using Fluorescent Biosensors. In: Allen, B., Hébert, T. (eds) Nuclear G-Protein Coupled Receptors. Methods in Molecular Biology, vol 1234. Humana Press, New York, NY. https://doi.org/10.1007/978-1-4939-1755-6_13
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DOI: https://doi.org/10.1007/978-1-4939-1755-6_13
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