Fig. 8. TUNEL assay of untreated and treated (free DOX, PF-HQ, and PF-HQ–DOX) tumor tissue. The first column represents the bright field; the second column represents the DAPI staining (visible by blue fluorescence); and the third column represents the apoptotic cells in tumor tissues (visible by green fluorescence). Images were captured at 20× magnification. Scale bar: 50 microns.
