FIG. 5.

Pathological evaluation of explanted scaECM and sham grafts. Gross pathological photos 6 weeks post-transplantation of recovered explants' anastomosis site and their respective MTC, H&E, and immunohistochemical stains for representative innate (neutrophils, macrophages) and adaptive (B-lymphocytes) immunity markers for sham, scaECM allografts, and autologous reendothelialized allografts (scaECM+EC), as indicated. Insets represent higher magnifications. Arrowheads in H&E images point to examples of neutrophil (red), macrophage (black), multinucleated giant cell (green), and lymphocyte (yellow) morphologies. Scale bars: overviews (MTC and H&E): 1 mm; insets: 100 μm; all other images: 200 μm. H&E, hematoxylin and eosin. Color images available online at www.liebertpub.com/tea