The percentage of T cells expressing TIM-3 was lower in AML patients (54.18 ± 10.98) compared with healthy donors (59.80 ± 6.76) (Fig. 2b) and no statistically significant differences were observed in the expression of PD-1 (9.55 ± 11.13 in AML and 4.20 ± 4.68 in healthy donors) (Fig. 2c). This evidence concerns the gene PDCD1 and acute myeloid leukemia.