HDL NP inhibits leukemia cell growth with samples from patients with AML. Relative viability (Annexin V^– PI^–) of leukemia cells isolated from patient 1 (A) and patient 2 (B) after treatment with HDL NPs at 50 or 100 nM. Colony-forming assays of patient 3 (C) or patient 4 (D) treated with PBS or HDL NP at 50 nM. Images highlight the leukemic colonies in red as well as the CFU count or area measured by the images (E-F). ∗P < .05; ∗∗P < .01; ∗∗∗P < .001. ns, not significant.