Figure 3.
Ex vivo blockade of the Tim-3–Tim-3L pathway enhances cytokine production by NY-ESO-1–specific CD8+ T cells. (A and B) Representative dot plots from one melanoma patient (A) and summary data for all melanoma patients (n = 8; B) showing the percentages of A2/NY-ESO-1 157–165 tet+ CD8+ T cells that produce IFN-γ and TNF among total NY-ESO-1–specific CD8+ T cells after short ex vivo stimulation with cognate peptide in the presence of blocking anti–Tim-3 and/or anti–PD-L1 mAbs or an isotype control antibody (IgG). (C) Summary data for melanoma patients (n = 6) showing the percentages of A2/CMV 495–503 tet+ CD8+ T cells that produce IFN-γ and TNF among total CMV-specific CD8+ T cells after short ex vivo stimulation with cognate peptide in the presence of blocking anti–Tim-3 and/or anti–PD-L1 mAbs or an isotype control antibody (IgG). The p-values were calculated using the Wilcoxon signed rank test. Data shown are representative of two independent experiments performed in duplicate.