FIG. 4.

PDLSC effect on in vivo angiogenesis. (A) Photomicrographs of histological sections (H&E stained) of subcutaneous implants containing ECs alone or ECs+PDLSCs (arrows point to blood vessels). (B) Photomicrographs of histological sections immunostained for human CD31 to identify blood vessels (arrows) formed from implanted human cells (ECs or PDLSCs). Quantification of (C) total vessels, human-derived vessels, and mature (diameter>20 μm) vessels between conditions. Values represent mean±SE (n=5). *p<0.05. Color images available online at www.liebertpub.com/tea