T_MH60 mediate GVL against mCP-CML. B6.H60 mice were irradiated and reconstituted with C3H.SW BM, B6.H60 mCP-CML cells with no T cells or with 2 × 10⁴ or 4 × 10⁴ CD8⁺CD44⁺ T_M from DEC-H60–vaccinated or unmanipulated C3H.SW mice. (A) Survival. All deaths were from leukemia. P < .0003 comparing either T_MH60 recipient group with its T_M control; P ≤ .0002 comparing any T_M recipient group with the BM alone control. (B) Numbers of NGFR⁺ cells in peripheral blood. (C) Representative flow cytometry of Tet^H60+ cells in peripheral blood at day 7, gated on CD8⁺ cells. (D) Number of Tet^H60+ cells in blood of T_MH60 recipients at days +7, +14, +21, +27, and +33.