We found that Bcl-xL showed moderate expression in U937 and NB4 cell lines, but much higher in Kasumi-1 and KG1a AML cell lines (Figure S4A), which both show high expression of CD34 surface antigen and are insensitive to Daunorubicin (DNR) in our previous study [33]. This evidence concerns the gene BCL2L1 and acute myeloid leukemia.