KLK8 and leukemia: In Figure 4c, hNP was shown to be internalized by 33.5 ± 4.3% of mouse CD11b+ bone marrow myeloid cells and T‐hNP showed a slightly reduced uptake by 27.5 ± 3.3%, which confirmed that sFVA‐modification enhanced leukemia cell‐targeted uptake of hNP.