B. HeLa cells were treated with Dinaciclib (1 µM, 3 h) and permeabilized or not with digitonin A GM130 antibody was added to the buffer of living cells to monitor permeabilization efficiency. Upper panels, non-permeabilized (NP) control cells; middle panels, permeabilized control cells; lower panels, permeabilized Dinaciclib-treated cells. Data information: Scale bars, 10 µm. 