CD94-expressing cells expanded from G-PBMCs prevent growth of K562 leukemic cells and CW2 colon cancer cells in NOD/SCID mice. (A) Mice were subcutaneously injected with 2 × 10⁷ K562 cells only (♦ and ▴; died after 9 and 13 weeks, respectively) or with 1 × 10⁷ CD94-expressing cells (2 mice, ▪, survived more than 30 weeks). (B) Mice were subcutaneously injected with 1 × 10⁷ CW2 colon cancer cells only (♦, ▴, and ▪; died after 9, 9, and 14 weeks, respectively) or with 0.5 × 10⁷ CD94-expressing cells (3 mice, •, survived more than 30 weeks).