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Stefan Jacobs, Davide Calebiro, Viacheslav O. Nikolaev, Martin J. Lohse, Stefan Schulz, Real-Time Monitoring of Somatostatin Receptor-cAMP Signaling in Live Pituitary, Endocrinology, Volume 151, Issue 9, 1 September 2010, Pages 4560–4565, https://doi.org/10.1210/en.2010-0341
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Fluorescence resonance energy transfer using genetically encoded biosensors has proven to be a powerful technique to monitor the spatiotemporal dynamics of cAMP signals stimulated by Gs-coupled receptors in living cells. In contrast, real-time imaging of Gi-mediated cAMP signals under native conditions remains challenging. Here, we describe the use of transgenic mice for cAMP imaging in living pituitary slices and primary pituitary cells. This technique can be widely used to assess the contribution of various pituitary receptors, including individual Gi protein-coupled somatostatin receptors, to the regulation of cAMP levels under physiologically relevant settings.