Improved Biocompatibility of Novel Biodegradable Scaffold Composed of Poly-L-lactic Acid and Amorphous Calcium Phosphate Nanoparticles in Porcine Coronary Artery

Figure 6

Immunohistochemistry staining of NF-κB (a and d), PECAM-1 (b and e), and eNOS (c and f) positive cells with the PLLA scaffold (a–c) and with the PLLA/ACP scaffold (d–f). The red arrows show positive cells. Note the significantly lower expression of NF-κB in the PLLA/ACP stented artery (d) compared with that of the PLLA stented artery (a) and the significantly higher expression of both eNOS and PECAM-1 in the PLLA/ACP stented artery (e and f) compared to that of the PLLA stented artery (b and c).

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