Figure 4.

Antitumour therapy of SnSe NSs in multiple tumor models. (A,B) The tumor growth curves in B16 and 4T1 subcutaneous tumor mice treated with SnSe NSs (n = 5). (C–E) Representative flow cytometry zebra plots and statistical analyses of immune cells in the B16 tumor model with SnSe NS treatments. (C) CD8⁺ T cells. (D–E) Quantitative analysis of Ki67 and IFN-γ within CD8⁺ T cells. Data are means ± SDs. Statistical significance between different groups was obtained by Student’s t-tests (two-tailed). p-value: *p < 0.05; ** p < 0.01; *** p < 0.001; **** p < 0.0001. a.u., arbitrary units.