mean lysis of autologous tumor cells was 47 % at an effector-to-target cell ratio of 20:1 , while mean lyses of the human myeloid leukemia cell line k562 , allogeneic melanoma cells , and an osteosarcoma cell were 20 % , 13 % , and 11 % , respectively .
C3485979
allogeneic
C0007634
cell