Irreversible electroporation combined with anti-programmed cell death protein 1 therapy promotes tumor antigen-specific CD8+ T cell response

Figure 2 Irreversible electroporation combined with anti-programmed cell death protein 1 treatment increased T lymphocyte infiltration in peripheral blood cells. A: Percentages of CD3⁺ T cells within a single-cell suspension of tumor tissues; B: Percentages of CD4⁺ T cells; C: Percentages of CD8⁺ T cells; D: CD4⁺: CD8⁺ ratio (values represent mean ± standard deviation, ^aP < 0.05, ^bP < 0.01, ^cP < 0.001). IRE: Irreversible electroporation; PD-1: Programmed cell death protein 1.