MKI67 and acute myeloid leukemia: Alter gene expression profile of BMMSCs, with concentration-dependent effects.Increased MSC survival, proliferation, and metabolic activity through increased Ki-67 and BCL2 expression (at lower concentrations of AML cell-derived EVs). Downregulation of ROS production.Upregulation of apoptosis (at higher AML cell-derived EV concentrations).