| An experimental study on MR imaging of atherosclerotic plaque with SPIO marked endothelial cells in a rabbit model. | |
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MedLine Citation:
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PMID: 21953575 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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PURPOSE: To investigate how to label macrophages in atherosclerotic plaques with superparamagnetic iron oxide (SPIO) nanoparticles and trace SPIO with MR imaging. MATERIALS AND METHODS: Atherosclerotic lesions of a rabbit model were induced by a combination of high-fat and high-cholesterol diet and subsequent endothelial abrasion of the abdominal aorta. SPIO particles were pretreated with poly-L-lysine. SPIO nanoparticles and SPIO-labeled human endothelial cells (ECV-304) were IV injected into model animals, respectively. The MRI scans and histopathological examination were performed 12 h and 24 h after the injection. The imaging and histopathological data were analyzed. RESULTS: Prussian blue staining of the vessel specimens indicated that SPIO particles were not found in the atheroma but in the Kupffer's cells of the liver after SPIO injection. However, the accumulation of SPIO particles in the atheroma was confirmed in animals received SPIO-labeled endothelial cell transplantation. The best quality MR scan sequences of rabbit abdominal aorta were T(2) WI fat suppression, T(1) WI, and DIR series, on which of MR image had a higher quality. Signal loss of the original incrassate plaque in the vessel wall on T(2) WI was found in 6 of 10 animals received SPIO-labeled endothelial cell transplantation. CONCLUSION: SPIO-labeled endothelial cells were superior to SPIO for MR imaging of atherosclerotic plaques. J. Magn. Reson. Imaging 2011;. © 2011 Wiley-Liss, Inc. |
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Authors:
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Quan Zhou; Kan-Rong Yang; Peng Gao; Wen-Li Chen; Da-Yan Yang; Min-Jie Liang; Lin Zhu |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-9-23 |
Journal Detail:
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Title: Journal of magnetic resonance imaging : JMRI Volume: - ISSN: 1522-2586 ISO Abbreviation: - Publication Date: 2011 Sep |
Date Detail:
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Created Date: 2011-9-28 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9105850 Medline TA: J Magn Reson Imaging Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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Copyright © 2011 Wiley-Liss, Inc. |
Affiliation:
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Medical Imaging Center, First Affiliated Hospital of Jinan University, Guangzhou, China. tzq@jnu.edu.cn. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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