ICAM1 and acute myeloid leukemia: To further confirm the crucial role of ICAM-1 in the escape of STAT3-deficient AML cells we lentivirally transduced THP-1 and HEL STAT3WT and STAT3KO cells with a vector encoding for GFP only (STAT3WT_GFP or STAT3KO_GFP) or human ICAM1 and GFP (STAT3WT_ICAM1 or STAT3KO_ICAM1).