FIG. 5.

Proliferation of ASC subpopulations. ASCs were incubated with BrdU at multiple stages of vascular formation. (A) CD31+ vessels were BrdU+ at all stages of growth, depicted here at day 7. The arrow highlights a tip cell during division. (B) αSMA+ cells distant from the vessel were often BrdU+, while those directly contacting the vessel were BrdU-, depicted here at day 14. Scale bars=50 μm (A) and 200 μm (B). BrdU, bromodeoxyuridine. Color images available online at www.liebertonline.com/tea