Abstract

TIM-3 is a known marker of T-cell exhaustion but it is also commonly found on leukemia blasts in acute myeloid leukemia (AML). TIM-3 positivity of AML blasts was associated with higher relapse rate and worse overall survival. Although TIM-3 function in AML cells is far from elucidated, TIM-3 was reported to mediate Galectin-9 secretion, and TIM-3/Galectin-9 release in the plasma might contribute to inhibition of T-cell effector function.

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