Phenotypic characterization of human bone marrow monocytes. (A) Representative plot of bone marrow monocytes in ABM and FBM. CD14⁺CD16⁻ classical monocytes are gated as shown. (B) Mean fluorescence intensity (MFI) of CD11c, CD11b, CX3CR1, and CCR2 as expressed on classical monocytes or on the CD14⁻ nonmonocyte population in FBM and ABM. (C) MFI of CX3CR1 and CCR2 in classical (CD14⁺CD16⁻) and nonclassical (CD14⁺CD16⁺) monocyte populations in ABM and FBM. Representative of 3 or more experiments; n = 12 (total from all experiments).