Cells were cultured as described in [7 (link)]. For cell proliferation analysis, the BrdU incorporation protocol was executed as detailed [7 (link)]. The percentage of BrdU-positive cells was assessed using a FACSCanto II flow cytometer. The data were analyzed using FlowJo software (version 7.6.1). BrdU incorporation was also observed by immunofluorescence, as in [7 (link)]. The coverslips were incubated with the primary antibody BrdU (Bu20a; diluted 1:200; #5292; Cell Signaling Technology) overnight at 4 °C. The goat anti-mouse Alexa Fluor 594 (diluted 1:150; A11032, Thermo Fisher Scientific) was used as the secondary antibody.
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