Recording Intracellular cAMP Levels with EPAC-Based FRET Sensors by Fluorescence Lifetime Imaging

  • Marcel Raspe
  • Jeffrey Klarenbeek
  • Kees JalinkEmail author
Part of the Methods in Molecular Biology book series (MIMB, volume 1294)


Eukaryotic cells use second messengers such as Ca2+, IP3, cGMP, and cAMP to transduce extracellular signals like hormones, via membrane receptors to downstream cellular effectors. FRET-based sensors are ideal to visualize and measure these rapid changes of second messenger concentrations in time and place. Here, we describe the use of EPAC-based FRET sensors to measure cAMP with spatiotemporal resolution in cells by fluorescence lifetime imaging (FLIM).




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Copyright information

© Springer Science+Business Media New York 2015

Authors and Affiliations

  1. 1.Department of Cell BiologyThe Netherlands Cancer InstituteAmsterdamThe Netherlands
  2. 2.Department of Cell Biology and BiochemistryThe Netherlands Cancer InstituteAmsterdamThe Netherlands

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