Inhibition of tumor relapse by adoptive transfer of allogeneic anti–third-party Tcm. Lethally irradiated (8Gy TBI) BALB/c (H-2d) mice received an intravenous transplant of 3 × 106 allogeneic TDBM cells (B6 nude [H-2b]) in the presence or absence of 5 × 103A20-luc lymphoma cells (day 0). Mice were then (day +1) intravenously injected with 5 × 106 B6-derived anti–third-party Tcm (A20+ Allo Tcm; n = 7) or left untreated (A20 only; n = 8). (A) Tumor growth was monitored by BLI from day 13 at weekly intervals. (B) Survival rates of the animals in the different treatment groups are shown.