Document Detail


Endogenous Renovascular Hypertension Combined With Low Shear Stress Induces Plaque Rupture in Apolipoprotein E-Deficient Mice.
MedLine Citation:
PMID:  22904273     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
OBJECTIVE: The development of a murine model of spontaneous atherosclerotic plaque rupture with luminal thrombus. METHODS AND RESULTS: Combined partial ligation of the left renal artery and left common carotid artery in 8-week-old apolipoprotein E-deficient mice induced endogenous renovascular hypertension and local low oscillatory shear stress in the left common carotid artery. After 8 weeks, a fresh left common carotid artery lumen thrombus associated with severe plaque burden was found in 50% (10/20) of the mice. Histological analyses indicated that all left common carotid artery lesions had vulnerable features, and 50% (5/10) of the mice showed plaque rupture with a lumen thrombus. Multiple layers with layering discontinuity and intraplaque hemorrhages were found in 80% (8/10) of the mice. Further experiments showed that both increased blood pressure, and angiotensin-II contributed to plaque progression and vulnerability. Decreased intimal collagen associated with increased collagenase activity and matrix metalloproteinase expression also resulted in plaque disruption. CONCLUSIONS: We demonstrate a murine model of spontaneous plaque rupture with a high incidence of luminal thrombus. The model not only nicely recapitulates the pathophysiological processes of human plaque rupture but it is also simple, fast, and highly efficient to generate.
Authors:
Shu-Xuan Jin; Ling-Hong Shen; Peng Nie; Wei Yuan; Liu-Hua Hu; Dan-Dan Li; Xue-Jin Chen; Xiao-Kun Zhang; Ben He
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-8-16
Journal Detail:
Title:  Arteriosclerosis, thrombosis, and vascular biology     Volume:  -     ISSN:  1524-4636     ISO Abbreviation:  Arterioscler. Thromb. Vasc. Biol.     Publication Date:  2012 Aug 
Date Detail:
Created Date:  2012-8-20     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9505803     Medline TA:  Arterioscler Thromb Vasc Biol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Department of Cardiology, Renji Hospital, and Department of Laboratory Animal Science, Shanghai Jiaotong University School of Medicine, Shanghai, China; and Sandford-Burnham Medical Research Institute, Cancer Center, La Jolla, CA.
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