A Rhodamine-Phalloidin-conjugate (#R415, Thermo Fisher Scientific) was used to stain the microfilaments in PAV-1 cells according to a previously established protocol [19 (link),35 (link)]. The nuclei were counterstained by incubation in a 4′,6-diamidino-2-phenylindole (DAPI) solution (#D1306, Thermo Fisher Scientific), and the glass coverslips were mounted with PermaFluor aqueous mounting medium (#TA-030-FM, Thermo Fisher Scientific). Images of stained cells were captured using a Nikon Eclipse E80i fluorescence microscope (Nikon Europe, Düsseldorf, Germany) equipped with the NIS-Elements Vis software (Nikon Europe, version 3.22.01).
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