CSF1R and acute myeloid leukemia: Examinations of CSF1R expression patterns by flow cytometry and mass cytometry (CyTOF) of samples from AML patients and healthy donors revealed overall expression of CSF1R in AML samples is found on a subpopulation of CD14-expressing monocytes which seem to diminish after exposure to CSF1R inhibitors, while negligible expression of CSF1R was found on a small portion of leukemic blasts (94).