WT1 and acute myeloid leukemia: Compared to the AML cell lines, these primary AML samples were more sensitive to VEN (5–10 nM VEN necessary to yield approximately 40–60% cytotoxicity on primary samples compared to 100 nM on OCI-AML2 cells) and less sensitive to WT1-CTLs (E:T 5–10 required to yield cytotoxicity seen with E:T 0.5 in AML cell lines).