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Kim JS, Lee SG, Oh J, Park S, Park SI, Hong SY, Kim S, Lee SH, Ko YG, Choi D, Hong MK, Jang Y. Development of Advanced Atherosclerotic Plaque by Injection of Inflammatory Proteins in a Rabbit Iliac Artery Model. Yonsei Med J 2016; 57:1095-105. [PMID: 27401639 PMCID: PMC4960374 DOI: 10.3349/ymj.2016.57.5.1095] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2015] [Revised: 02/09/2016] [Accepted: 03/03/2016] [Indexed: 02/04/2023] Open
Abstract
PURPOSE Appropriate animal models of atherosclerotic plaque are crucial to investigating the pathophysiology of atherosclerosis, as well as for the evaluation of the efficacy and safety of vascular devices. We aimed to develop a novel animal model that would be suitable for the study of advanced atherosclerotic lesions in vivo. MATERIALS AND METHODS Atherosclerotic plaque was induced in 24 iliac arteries from 12 rabbits by combining a high cholesterol diet, endothelial denudation, and injection into the vessel wall with either saline (n=5), olive oil (n=6), or inflammatory proteins [n=13, high-mobility group protein B1 (HMGB1) n=8 and tumor necrosis factor (TNF)-α n=5] using a Cricket™ Micro-infusion catheter. Optical coherence tomography (OCT) was performed to detect plaque characteristics after 4 weeks, and all tissues were harvested for histological evaluation. RESULTS Advanced plaque was more frequently observed in the group injected with inflammatory proteins. Macrophage infiltration was present to a higher degree in the HMGB1 and TNF-α groups, compared to the oil or saline group (82.1±5.1% and 94.6±2.2% compared to 49.6±14.0% and 46.5±9.6%, p-value<0.001), using RAM11 antibody staining. On OCT, lipid rich plaques were more frequently detected in the inflammatory protein group [saline group: 2/5 (40%), oil group: 3/5 (50%), HMGB1 group: 6/8 (75%), and TNF-α group: 5/5 (100%)]. CONCLUSION These data indicate that this rabbit model of atherosclerotic lesion formation via direct injection of pro-inflammatory proteins into the vessel wall is useful for in vivo studies investigating atherosclerosis.
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Affiliation(s)
- Jung Sun Kim
- Cardiology Division, Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Korea
- Cardiovascular Product Evaluation Center, Yonsei University College of Medicine, Seoul, Korea
- Cardiovascular Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Seul Gee Lee
- Graduate Program in Science for Aging, Yonsei University, Seoul, Korea
| | - Jaewon Oh
- Cardiology Division, Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Korea
- Cardiovascular Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Sungha Park
- Cardiology Division, Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Korea
- Cardiovascular Research Institute, Yonsei University College of Medicine, Seoul, Korea.
| | - Se Il Park
- Cardiovascular Product Evaluation Center, Yonsei University College of Medicine, Seoul, Korea
| | - Sung Yu Hong
- Cardiovascular Product Evaluation Center, Yonsei University College of Medicine, Seoul, Korea
| | - Sehoon Kim
- Department of Pathology, Yonsei University College of Medicine, Seoul, Korea
| | - Sang Hak Lee
- Cardiology Division, Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Korea
- Cardiovascular Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Young Guk Ko
- Cardiology Division, Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Korea
- Cardiovascular Product Evaluation Center, Yonsei University College of Medicine, Seoul, Korea
- Cardiovascular Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Donghoon Choi
- Cardiology Division, Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Korea
- Cardiovascular Product Evaluation Center, Yonsei University College of Medicine, Seoul, Korea
- Cardiovascular Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Myeong Ki Hong
- Cardiology Division, Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Korea
- Cardiovascular Product Evaluation Center, Yonsei University College of Medicine, Seoul, Korea
- Cardiovascular Research Institute, Yonsei University College of Medicine, Seoul, Korea
- Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Yangsoo Jang
- Cardiology Division, Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Korea
- Cardiovascular Product Evaluation Center, Yonsei University College of Medicine, Seoul, Korea
- Cardiovascular Research Institute, Yonsei University College of Medicine, Seoul, Korea
- Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Korea
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