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Fig. 6. Bone marrow origin of vascular cells. Matrigel plugs were
established in irradiated mice that had been reconstituted using bone marrow
cells from an EGFP+ donor. At day 5 (A-D) sections were
analyzed by staining for NG2 (magenta), CD34 (red) and DAPI (blue). The EGFP
marker (green) is seen in cells that co-express NG2 and CD34 (arrows). Also at
day 5 (E-H), NG2 (magenta), F4/80 (red), EGFP (green) and DAPI (blue)
labeling were compared. The EGFP label is apparent in both populations of
macrophages: F4/80+NG2+ (arrows) and
F4/80+NG2- (arrowheads). At day 9 (I-L), sections
were analyzed for NG2 (magenta), CD31 (red), EGFP (green) and DAPI (blue). The
EGFP marker is frequently found in NG2+ cells (arrowheads), and
more rarely in CD31+ cells (arrows). All panels represent
z-stacks of confocal images. Scale bars: 40 µm.