Fig 3. Microscopic analysis of binding of FITC-labeled PSP1 and annexin V to apoptotic cells.

(A) Apoptotic H460 cells in a chamber slide were incubated with 20 μg of PSP1, control peptide, or annexin V for 30 min. The cells were washed and fixed with 4% PFA before staining with DAPI. The confocal images were taken by laser confocal microscopy. (B) Normal H460 cells were subjected to incubation with the same amount of peptide or annexin V.