Positive chemokine (C-C motif) receptor 2 (CCR2) expression in human blood fibrocytes by confocal microscopy. Fibrocytes after primary passage were costained with CCR2 and CD45 or isotype controls (chicken IgY and murine IgG1). Nuclei were stained with 4',6-diamidino-2-phenylindole (DAPI; blue). Cells were examined at 60 × magnification. Representative images from three donors.