On day 35, peripheral blood samples and SPCs were collected from glioma-bearing treated mice. A, plasma IL-15 levels were evaluated by ELISA. B and C, (B) proportions of EphA2671-679 tetramer+/CD8+ cells in lymphocyte-gated CD8+ cells, and (C) absolute numbers of EphA2671-679 tetramer+/CD8+/CD44high/CD62Lhigh (central memory) or EphA2671-679 tetramer+/CD8+/CD44high/CD62Llow (effector memory) cells per 1×105 SPCs were analyzed by flow cytometric analyses. For A-C, the results represent the mean ± SD of samples from three mice per group. *, p < 0.05 and **, p < 0.01 for indicated comparisons.