Fig. 2.
Reduction of Cell viability of PC3 and MatLyLu cells upon exposure to PDT & PCI. (A, B) Relative cell viability of PC3 cells following incubation to 0.2 μg/ml TPPS2a or TPCS2a alone (PDT) or combined with Saporin 2 nM (PCI) during 24 h and posterior illumination during 3 min. Cell viability was measured through the MTT assay either 24 h (A) or 96 h (B) after photosensitiser light-excitation. (C, D) Relative cell viability of MatLyLu cells following incubation to 0.4 μg/ml TPCS2a alone (PDT) or combined with Saporin 20 pM (PCI) during 24 h and posterior illumination during 3 min (1.3 J/cm2). Cell viability was measured through the MTT assay either 24 h (C) or 48 h (D) after photosensitiser light-excitation.