On day 8 post-tumor inoculation, when all mice had established tumors in the peritoneal cavity, the animals were randomly divided into 3 groups (6 animals each) for treatment: group 1 was subjected to one i.p. injection of PBS, group 2 to one i.p. injection of T cells expressing mGFP CAR, and group 3 received one i.p. injection of the T cells stably expressing anti-EpCAM CAR. The gene discussed is EPCAM; the disease is neoplasm.