Analysis of TrkB Receptor Activity Using FRET Sensors

  • Charles E. Hall
  • James O. McNamara
  • Ryohei YasudaEmail author
Part of the Neuromethods book series (NM, volume 143)


Here, we describe the use of 2-photon fluorescence lifetime imaging (2pFLIM) of a Förster resonance energy transfer (FRET) sensor to study the spatial and temporal activity pattern of the BDNF receptor TrkB. Combining 2pFLIM with laser uncaging of MNI-glutamate over single dendritic spines in organotypic hippocampal slices allows measurement of glutamate-induced changes in TrkB activity within a single spine or dendrite. This protocol covers the installation and setup of requisite hardware and software, the use of the software to acquire data, and the analysis of the data. A prerequisite for attempting this protocol is proficiency with 2-photon imaging of live cells and a microscope that is controlled by ScanImage 3.8 (Vidrio Technologies).


2-Photon Dendritic spines FLIM FRET Glutamate uncaging 



This work was supported by NS05621 (NIH) to JOM.


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Copyright information

© Springer Science+Business Media New York 2018

Authors and Affiliations

  • Charles E. Hall
    • 1
  • James O. McNamara
    • 2
  • Ryohei Yasuda
    • 3
    Email author
  1. 1.Department of PharmacologyDuke University School of MedicineDurhamUSA
  2. 2.Department of NeurobiologyDuke University School of MedicineDurhamUSA
  3. 3.Max Planck Florida Institute for NeuroscienceJupiterUSA

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