FOXP3 and acute myeloid leukemia: Taken together, in addition to the previously reported increase in ICIs in αβ+ T cells and higher T cell exhaustion status in AML patients, we further speculate that the high frequency of the PD-1+Foxp3+ γδ T subset is associated with poor clinical outcomes, which could reinforce evidence of a link between PD-1 and Foxp3 in γδ T cells.