Anti-inflammatory effect of abciximab-coated stent in a porcine coronary restenosis model.

Abstract

The aim of this study was to examine the anti-inflammatory effect of abciximab-coated stent in a porcine coronary overstretch restenosis model. Ten abciximab-coated stents, ten sirolimus-eluting stents (SES), and ten paclitaxel-eluting stents (PES) were deployed with oversizing (stent/artery ratio 1.3:1) in porcine coronary arteries, and histopathologic analysis was done at 28 days after stenting. There were no significant differences in the neointima area normalized to injury score and inflammation score among the three stent groups (1.58 +/- 0.43 mm(2), 1.57 +/-0.39 mm(2) in abciximab-coated stent group vs. 1.69 +/- 0.57 mm(2), 1.72 +/- 0.49 mm(2) in the SES group vs. 1.92 +/- 0.86 mm(2), 1.79 +/- 0.87 mm(2) in the PES group, respectively). In the neointima, most inflammatory cells were lymphohistiocytes. Significant positive correlations were found between the extent of inflammatory reaction and the neointima area (r=0.567, p<0.001) and percent area stenosis (r=0.587, p<0.001). Significant correlations were found between the injury score and neointimal area (r=0.645, p<0.001), between the injury score and the inflammation score (r=0.837, p<0.001), and between the inflammation score and neointimal area (r=0.536, p=0.001). There was no significant difference in the inflammatory cell counts normalized to injury score among the three stent groups (75.5 +/- 23.1/microL in abciximabcoated stent group vs. 78.8 +/- 33.2/microL in the SES group vs. 130.3 +/- 46.9/microL in the PES group). Abciximab-coated stent showed comparable inhibition of inflammatory cell infiltration and neointimal hyperplasia with other drug-eluting stents in a porcine coronary restenosis model.

• Authors: Young Joon Hong, Myung Ho Jeong, Sang Rok Lee, Seo Na Hong, Kye Hun Kim, Hyung Wook Park, Ju Han Kim, Weon Kim, Youngkeun Ahn, Jeong Gwan Cho, Jong Chun Park, Jung Chaee Kang
• Journal: Journal of Korean medical science (J Korean Med Sci) Vol. 22 Issue 5 Pg. 802-9 (Oct 2007) ISSN: 1011-8934 [Print] Korea (South)
• PMID: 17982226 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)

Chemical References

• Anti-Bacterial Agents
• Anti-Inflammatory Agents
• Antibodies, Monoclonal
• Immunoglobulin Fab Fragments
• Paclitaxel
• Sirolimus
• Abciximab

Topics

• Abciximab
• Animals
• Anti-Bacterial Agents (administration & dosage)
• Anti-Inflammatory Agents (pharmacology)
• Antibodies, Monoclonal (administration & dosage, pharmacology)
• Arteries (injuries, pathology)
• Constriction, Pathologic
• Coronary Restenosis (therapy)
• Disease Models, Animal
• Drug-Eluting Stents
• Female
• Hyperplasia
• Immunoglobulin Fab Fragments (administration & dosage, pharmacology)
• Inflammation
• Paclitaxel (administration & dosage)
• Sirolimus (administration & dosage)
• Swine
• Tunica Intima (pathology)