Concordantly, AML cell lines harboring FLT3-ITD showed higher sensitivity to the EV release inhibitor FTY720 compared to FLT3-WT...Interestingly, FTY720 co-treatment potentiated apoptosis induced by VEN alone in both FLT3-ITD cell lines while FTL3-WT cells were still resistant to VEN and healthy hematopoiesis was unaffected.