Fig. 1

Immunofluorescence blot showing the expression of procaspase-6 and active caspase-6 in human primary surface epithelial cells (HOSE1 HOSE2), in human immortalized surface epithelial cells (HIO80) and in ovarian cancer cell lines OVCAR2, OVCAR3, OVCAR4, OVCAR5 and A2780. HOSE cells had constitutive procaspase-6 while proliferating HIO and cancer cells had constitutive active caspase-6