Title |
Novel A20-gene-eluting stent inhibits carotid artery restenosis in a porcine model
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Published in |
Drug Design, Development and Therapy, August 2016
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DOI | 10.2147/dddt.s94984 |
Pubmed ID | |
Authors |
Zhen-hua Zhou, Jing Peng, Zhao-you Meng, Lin Chen, Jia-Lu Huang, He-qing Huang, Li Li, Wen Zeng, Yong Wei, Chu-Hong Zhu, Kang-Ning Chen |
Abstract |
Carotid artery stenosis is a major risk factor for ischemic stroke. Although carotid angioplasty and stenting using an embolic protection device has been introduced as a less invasive carotid revascularization approach, in-stent restenosis limits its long-term efficacy and safety. The objective of this study was to test the anti-restenosis effects of local stent-mediated delivery of the A20 gene in a porcine carotid artery model. The pCDNA3.1EHA20 was firmly attached onto stents that had been collagen coated and treated with N-succinimidyl-3-(2-pyridyldithiol)propionate solution and anti-DNA immunoglobulin fixation. Anti-restenosis effects of modified vs control (the bare-metal stent and pCDNA3.1 void vector) stents were assessed by Western blot and scanning electron microscopy, as well as by morphological and inflammatory reaction analyses. Stent-delivered A20 gene was locally expressed in porcine carotids in association with significantly greater extent of re-endothelialization at day 14 and of neointimal hyperplasia inhibition at 3 months than stenting without A20 gene expression. The A20-gene-eluting stent inhibits neointimal hyperplasia while promoting re-endothelialization and therefore constitutes a novel potential alternative to prevent restenosis while minimizing complications. |
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Student > Ph. D. Student | 2 | 14% |
Researcher | 2 | 14% |
Lecturer | 1 | 7% |
Lecturer > Senior Lecturer | 1 | 7% |
Other | 2 | 14% |
Unknown | 3 | 21% |
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Neuroscience | 1 | 7% |
Other | 2 | 14% |
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