Abstract
Bioluminescence imaging of cellular function is a promising strategy. It has advantages over fluorescence imaging such as high sensitivity, no phototoxicity or no autofluorescence, and compatibility to deep-tissue imaging or optogenetics. However, functional imaging of cellular signaling by bioluminescence is not so easy due to the limited availability of bright bioluminescent indicators.
Here we describe a detailed strategy to detect cellular cAMP dynamics by using Nano-lantern (cAMP1.6), one of the brightest bioluminescent indicator for cAMP . Both induced and spontaneous cAMP signaling in social amoeba, with a large and small signal change, respectively, were imaged by this method.
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Acknowledgments
We are grateful to Kenji Osabe for proofreading the manuscript. This work was supported by JST SENTAN KEISOKU program (16812798 to T.N.), Grant-in-Aid for Scientific Research on Innovative Areas “Singularity Biology (No.8007)” (18H05408 to T.N., 18H05415 to K.H.), MEXT, Japan, and the Research Program of “Five-star Alliance” in “NJRC Mater. & Dev.” (T.N., K.H).
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Horikawa, K., Nagai, T. (2022). Live Imaging of cAMP Signaling in D. discoideum Based on a Bioluminescent Indicator, Nano-lantern (cAMP). In: Zaccolo, M. (eds) cAMP Signaling. Methods in Molecular Biology, vol 2483. Humana, New York, NY. https://doi.org/10.1007/978-1-0716-2245-2_14
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DOI: https://doi.org/10.1007/978-1-0716-2245-2_14
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