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. Author manuscript; available in PMC: 2014 Sep 1.
Published in final edited form as: Apoptosis. 2013 Sep;18(9):1071–1082. doi: 10.1007/s10495-013-0855-1

Fig. 4. PQ1 activates caspase-3 in T47D breast cancer cells.

Fig. 4

T47D cells were treated with DMSO and various concentrations of PQ1 for 48 hours. Cells without treatments were used as controls. Expression of cleaved caspase-3 was determined by confocal microscopic analysis using immunofluorescence staining. Red indicates cleaved caspase-3 and blue indicates nuclei stained by DAPI. Percentages of cells with positive staining were labeled on the right of images.