Gene-eluting stents: adenovirus-mediated delivery of enos to the blood vessel wall accelerates re-endothelialization and inhibits restenosis
Sharif, Faisal Hynes, Sean O Cooney, Ronan Howard, Linda McMahon, Jill Daly, Kieran Crowley, James Barry, Frank O'Brien, Timothy
Sharif, Faisal
Hynes, Sean O
Cooney, Ronan
Howard, Linda
McMahon, Jill
Daly, Kieran
Crowley, James
Barry, Frank
O'Brien, Timothy
Repository DOI
Publication Date
2008-10-01
Type
Article
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Citation
Sharif, Faisal; Hynes, Sean O; Cooney, Ronan; Howard, Linda; McMahon, Jill; Daly, Kieran; Crowley, James; Barry, Frank; O'Brien, Timothy (2008). Gene-eluting stents: adenovirus-mediated delivery of enos to the blood vessel wall accelerates re-endothelialization and inhibits restenosis. Molecular Therapy 16 (10), 1674-1680
Abstract
Drug-eluting stents for coronary artery disease results in inhibition of smooth muscle cell (SMC) and endothelial cells which may increase the risk of stent thrombosis. In this study, we attempted to enhance re-endothelialization of deployed stents while simultaneously inhibiting intimal hyperplasia by overexpression of endothelial nitric oxide synthase (eNOS) delivery in the vasculature using an adenovirus gene-eluting stent. Re-endothelialization was significantly greater in vessels obtained from normocholesterolemic animals at day 14 (85.34% +/- 7.38 versus 62.66% +/- 10.49; P < 0.05) and day 28 (91.1% +/- 10 versus 63.1% +/- 22; P < 0.05) and hypercholesterolemic animals (96.97% +/- 3.2 versus 28.33% +/- 38.76; P < 0.05) at day 28 with AdeNOS-eluting stents. At day 28, there was a significant increase in the lumen size [AdeNOS 2.73 mm(2) +/- 1.18, Ad beta Gal 0.98 mm(2) +/- 0.98, phosphorylcholine (PC) 1.87 mm(2) +/- 1.18; P < 0.05], and a significant reduction in neointimal formation (AdeNOS 2.32 mm(2) +/- 1.13, Ad beta Gal 3.73 mm(2) +/- 0.95, PC 3.2 mm(2) +/- 0.94; P < 0.05), and percent restenosis (AdeNOS 45.23 +/- 20.81, Ad beta Gal 79.6 +/- 20.31, PC 70.16 +/- 22.2; P < 0.05) in AdeNOS-stented vessels in comparison with controls from hypercholesterolemic animals, assessed by morphometry and quantitative coronary angiography (AdeNOS 15.95% +/- 7.63, Ad beta Gal 56.9% +/- 38.6, PC 58 +/- 34.6; P < 0.05). Stent-based delivery of AdeNOS results in enhanced endothelial regeneration and reduction in neointimal formation as compared with controls. This seems to be a promising treatment strategy for preventing in-stent restenosis (ISR) while simultaneously reducing the risk of stent thrombosis.
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Publisher
Elsevier BV
Publisher DOI
10.1038/mt.2008.165
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Attribution-NonCommercial-NoDerivs 3.0 Ireland