Cells were seeded in Cell Carrier 384-Ultra plates (6057308, Perkin Elmer) for imaging. Fluorescence lifetime images were taken as described [41]. Briefly, we used an ISS-Alba FLIM/FCS confocal microscope with a 60x water immersion objective (NA = 1.2) and a PDL 800-D pulsed laser (PicoQuant) at a repetition rate of 20MHz. We used a 445/505/588nm excitation filter and a 628/30 nm emission filter. VistaVision Software was used for acquisition and analysis of the FLIM data.
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