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. Author manuscript; available in PMC: 2016 Jul 13.
Published in final edited form as: Invest Ophthalmol Vis Sci. 2008 May;49(5):2178–2192. doi: 10.1167/iovs.07-0632

Figure 10.

Figure 10

CXCR4 and SDF-1 in avascular and vascularized retina at 20 WG. (A, B) CD31 was absent in avascular retina (A, arrow) but was clearly present in blood vessels in vascularized regions (B, arrowhead). (C, D) CD39 was expressed by angioblasts in avascular retina (C, arrow) and blood vessels and angioblasts in vascularized areas (D, arrowhead). (E, F) In avascular retina, CXCR4 staining was intense in angioblasts within the PGCL (E, arrow) but was significantly reduced in areas that were vascularized and absent in retinal vessels (F, arrowhead). (G, H) SDF-1 immunoreactivity was much more intense in avascular inner retina at this age (G, arrow) than in vascularized retina (H, arrowhead). Stain, APase/NBT blue reaction product. Scale bar: (A) applies to all panels.