Acute and Chronic Local Inflammatory Reaction after Implantation of Different Extracellular Porcine Dermis Collagen Matrices in Rats

Figure 4

Exemplary demonstration of immunohistochemically stained cells surrounding Permacol 7 days after implantation: (a) CD68+ (M1-like) macrophages; (b) CD163+ (M2-like) macrophages; (c) T lymphocytes; (d) NK cells; (e) MHC class II positive cells; (f) nestin positive cells. Dotted line indicates border between implant and surrounding tissue, arrows (e) show nonabsorbable surgical suture. The objective lens magnification was 10× for all images.

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