Fig. 4

The proportions of immune cells in spleen of mice before and after inoculation of TC-1 cells. The representative flow scatter plots of immune cells (A-E). The proportions of CD8⁺ T cells, IFN-γ⁺CD8⁺ T cells, NK cells, MDSCs and Treg in the spleen of the PBS group (F-J), LM∆ & LI∆ group (K-O) and E6E7 group (P-T) before (Day 39) and after (Day 45) inoculation of TC-1 cells. Comparison of the proportions of immune cells in three groups in Day 45 (U-Y). PBS group (n = 6), LM∆ & LI∆ group (n = 6), E6E7 group (n = 6), * P < 0.05, ** P < 0.01, *** P < 0.001