Cblf/f;Cbl-bf/f mice were generated as described (Goetz et al. 2016 (link)) and crossed to creERT2 mice from Jackson Laboratories. Lnk−/− mice were generously provided by Dr. Tony Pawson and Dr. Laura Velazquez (Samuel Lunenfeld Research Institute, Toronto, Canada). BM- or peripheral blood-derived MNCs from deidentified AML patients were obtained from the Stem Cell and Xenograft Core Facility at University of Pennsylvania. TF-1 and HEL cells were purchased from American Type Culture Collection. HEL cells were cultured in RPMI with 10% bovine calf serum. TF-1 cells were maintained in RPMI supplemented with 10% CS and 2 ng/mL hGM-CSF (PeproTech).