The HL-60 cells are often used as a model for in vitro research for treatment of AML (acute myeloid leukemia) in combination with modified primary human CAR- T cells (T cells expressing chimeric antigen receptors).
Transfection protocols can be found here:
https://knowledge.lonza.com/cell?id=64&search=hl60
You can use the optimized protocol for transfection of CRISPR/Cas9 complexes, there is no modification needed.
More information about all human blood cells, functions and role in the immune response are in our new hematopoetic product page:
https://bioscience.lonza.com/lonza_bs/CH/en/immuno-and-hematopoietic-knowledge-center