Pilot Study Using Propranolol To Promote Prenylation Of Gtpase Rap1b In Hematopoietic Stem Cell Transplant Recipients

"Lab will draw one tube of blood to be stored in 8 mL Becton Dickinson (BD) Vacutainer Cell Preparation Tube (CPT) tubes at three study time points as described in Table 4.7b. These time points include baseline, Day -2 (immediately prior to transplant, central line placement, or administration of any conditioning regimen), and Day +28.~Peripheral blood mononuclear cells (PBMCs) will be isolated from the whole blood samples collected from patients at the three designated time points (Baseline, Day -2, and Day +28). The lab will conduct western blotting on the cytosolic and membrane fractions of isolated PBMCs to determine the distribution of Rap1 in the different fractions, and the status of Rap1 prenylation in the cells."