Fig. 8From: Combination of polythyleneimine regulating autophagy prodrug and Mdr1 siRNA for tumor multidrug resistanceThe inducing-apoptosis of nanoassemblies in tumor tissues. Immunohistochemistry assays Ki-67-positive levels and immunofluorescence staining of TUNEL-, P-gp-, LC3-, and p62- positive levels in tumor tissues. Cell nucleus were stained by DAPI. Scale bars: 50 μmBack to article page