Samples were isolated from animals 3, 6, 9, 12 and 15 days post-wounding for histopathological examination. The skin specimens were immediately fixed in formal alcohol until processed133 (link),134 (link). Each specimen was then dehydrated and embedded, and thin sections (3 μm) were prepared. For immunohistochemistry, tissue sections were processed and stained with the following primary antibodies (anti-PECAM-1 and anti-CCL2) (Santa Cruz Biotechnology).
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