Abbreviations: TEPA, tertraethylenepentamine; TNC, Total nucleated cells; ALL, Acute lymphoblastic leukemia; AML, acute myeloid leukemia; SCF, stem cell factor; Flt-3L, Fms-related tyrosine kinase 3 ligand; TPO, thrombopoietin; MSC, mesenchymal stromal cell; G-CSF, granulocyte-colony stimulating factor; SR1, stemregenin-1; NA, Not applicable.