(a) Expression of CCR2, CX3CR1, and LFA-1 (CD11a) in monocyte populations from Nr4a1−/− or wild-type (WT) control bone marrow analyzed by flow cytometry. (*P <0.05 n = 5 mice/group; bar graphs show MFI fold change compared to Ly6C+ WT cells) (b) Relative expression of Cx3cr1, Cebpb, Junb and Sfpi1 (PU.1) transcripts in Ly6C− monocytes isolated by FACS from bone marrow of Nr4a1−/− or wild-type mice measured by qRT-PCR. (*P <0.05 n = 6 mice per group, expressed as a percentage of wild-type transcript).