CASP8 and ovarian cancer: Statistical analysis of the obtained results revealed significantly decreased mean serum levels of caspase-3, caspase-8, and caspase-9 in women with ovarian cancer compared to the control group (p ˂ 0.001), which indicates the involvement of the studied parameters in immune system disturbances occurring in the process of apoptosis by extrinsic and intrinsic pathways in patients with ovarian cancer.