The percentages of lymphoma cells that were positive for activated caspase 8 activities were hWJSC-CM (21% O2): 32.9 ± 1.15%, hWJSC-CM (10% O2): 31.8 ± 0.64%, hWJSC-CM (5% O2): 46.2 ± 1.19%, and control: 14.8 ± 0.56%. The gene discussed is CASP8; the disease is lymphoma.