PROM1 and cancer: The CSCs from OVCAR5 (Supplementary Figure S5a) and HEY cells (Supplementary Figure S5b) were more sensitive to fVII-tPDT (2 μM SnCe6 in fVII-SnCe6 and 36 J/cm2) than CD133- non-CSC cancer cells (p=0.0107 and p=0.0437, respectively).