γδ T17 cells preceded Tc1 CTL into tumors after chemotherapy. (A) The percentages of IL-17– and IFN-γ–producing cells among all tumor infiltrating γδ T cells and CD8⁺ T cells, respectively, are plotted before and at the indicated time points after tumor inoculation. Mice were treated with PBS (filled symbols) or DX (open symbols) at day 7. (B) Ki67 expression on γδ T and CD8⁺ TILs 8 d after treatment. (C) The percentages of γδ T17 and Tc1 among all CD3⁺ TILs at the indicated time points after tumor inoculation. DX was given at day 7. These experiments were performed twice on 5–10 tumors at each time point. *, P < 0.05; **, P < 0.01.