TF is absent from around vessels in granulation tissue even though pericytes are present. Antigen is indicated by the brown color. Representative sections from WT at day 8 after wounding are shown. TF was not present around vessels in the granulation tissue (left panel), since the intensity of staining was no greater than negative control sections stained with nonimmune rabbit IgG. The squamous epithelium above the granulation tissue does stain for TF. Vessels in the granulation tissue were surrounded by pericytes, as indicated by a layer of desmin staining around the vessels (right panel). The pattern of staining was consistent in 15 skin samples for TF and 23 for desmin, and was the same for WT and HB mice. Original magnification 100× and 1000× for insets.