HUDEP-2 cells were used as previously described3 (link),31 (link), which tested negative for mycoplasma contamination. HUDEP-2 cells were expanded in SFEM (Stem Cell Technologies) supplemented with 100 ng/mL stem cell factor (R&D), 3 UI/mL erythropoietin (Amgen), 10−6 M dexamethasone (Sigma), 1 µ/mL of doxycycline (Sigma), and 2% penicillin-streptomycin (Thermo Fisher). HUDEP-2 cells were differentiated in Iscove’s Modified Dulbecco’s Medium (IMDM) supplemented with 330 µg/mL holo-human transferrin (Sigma), 10 µg/mL recombinant human insulin (Sigma), 2 IU/mL heparin (Sigma), 5% human solvent detergent pooled plasma AB (Rhode Island Blood Center), 3 IU/mL erythropoietin (Amgen), 100 ng/mL human stem cell factor (SCF) (R&D), 1 µg/mL doxycycline (Sigma), 1% L-glutamine (Life Technologies), and 2% penicillin/streptomycin (Life Technologies).