Fig. 4

KillerRed-mediated PDT induced intracellular ROS in K562 (a), NB4 (b), and THP1 (c) cell line. The green curve represents cells treated with KillerRed-mediated PDT. The red curve represents cells treated with KillerRed alone. H2O2 was used as a positive control (blue curve). d Results are expressed as means ±SD from three independent experiments