201
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Ye S. Putative targeting of matrix metalloproteinase-8 in atherosclerosis. Pharmacol Ther 2015; 147:111-22. [DOI: 10.1016/j.pharmthera.2014.11.007] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2014] [Accepted: 11/06/2014] [Indexed: 12/20/2022]
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202
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Xie SL, Chen YY, Zhang HF, Deng BQ, Shu XR, Su ZZ, Lin YQ, Nie RQ, Wang JF. Interleukin 18 and extracellular matrix metalloproteinase inducer cross-regulation: implications in acute myocardial infarction. Transl Res 2015; 165:387-95. [PMID: 25267095 DOI: 10.1016/j.trsl.2014.09.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2014] [Revised: 08/30/2014] [Accepted: 09/04/2014] [Indexed: 01/02/2023]
Abstract
Circulating interleukin-18 (IL-18) is thought to promote atherosclerosis and cardiovascular complications such as plaque rupture. Atherosclerosis is also characterized by smooth muscle cell migration, a consequence of extracellular matrix (ECM) degradation regulated by metalloproteinases (MMPs). Because extracellular matrix metalloproteinase inducer (EMMPRIN) has been shown to promote plaque instability by inducing ECM degradation and MMP synthesis, we investigated whether a cross-regulatory interaction exists between IL-18 and EMMPRIN in human monocytes. EMMPRIN levels in monocytes were markedly greater in 20 patients with acute myocardial infarction (AMI) compared with 20 patients with stable angina pectoris or 20 healthy volunteers (control group). The levels of IL-18 and MMP-9 in serum were also significantly greater in the AMI group in comparison with the other 2 groups. IL-18 levels positively correlated with increased levels of EMMPRIN in monocytes. In vitro, the expression of EMMPRIN was increased in monocytes cultured with IL-18, and IL-18 secretion was augmented in monocytes cultured with EMMPRIN. Gene silencing of EMMPRIN by small interfering RNA reduced monocyte secretion of both IL-18 and MMP-9. In the present study, cross-regulation between IL-18 and EMMPRIN in monocytes was demonstrated. This interaction may amplify the inflammatory cascade and be responsible for increased monocytic MMP-9 serum levels in atherosclerosis, contributing to atherosclerotic plaque destabilization and subsequent AMI.
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Affiliation(s)
- Shuang-Lun Xie
- Department of Cardiology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China; Guangdong Province Key Laboratory of Arrhythmia and Electrophysiology, Guangzhou, China
| | - Yu-Yang Chen
- Department of Cardiology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China; Guangdong Province Key Laboratory of Arrhythmia and Electrophysiology, Guangzhou, China
| | - Hai-Feng Zhang
- Department of Cardiology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China; Guangdong Province Key Laboratory of Arrhythmia and Electrophysiology, Guangzhou, China
| | - Bing-Qing Deng
- Department of Cardiology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China; Guangdong Province Key Laboratory of Arrhythmia and Electrophysiology, Guangzhou, China
| | - Xiao-Rong Shu
- Department of Cardiology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China; Guangdong Province Key Laboratory of Arrhythmia and Electrophysiology, Guangzhou, China
| | - Zi-Zhuo Su
- Department of Cardiology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China; Guangdong Province Key Laboratory of Arrhythmia and Electrophysiology, Guangzhou, China
| | - Yong-Qing Lin
- Department of Cardiology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China; Guangdong Province Key Laboratory of Arrhythmia and Electrophysiology, Guangzhou, China
| | - Ru-Qiong Nie
- Department of Cardiology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China; Guangdong Province Key Laboratory of Arrhythmia and Electrophysiology, Guangzhou, China
| | - Jing-Feng Wang
- Department of Cardiology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China; Guangdong Province Key Laboratory of Arrhythmia and Electrophysiology, Guangzhou, China.
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203
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Study on the deformation of endothelial cells using a bio-inspired in vitro disease model. Microvasc Res 2015; 98:172-82. [DOI: 10.1016/j.mvr.2014.02.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2013] [Revised: 12/12/2013] [Accepted: 02/03/2014] [Indexed: 01/12/2023]
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204
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Kataoka H. Molecular mechanisms of the formation and progression of intracranial aneurysms. Neurol Med Chir (Tokyo) 2015; 55:214-29. [PMID: 25761423 PMCID: PMC4533330 DOI: 10.2176/nmc.ra.2014-0337] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Until recently, only a little was understood about molecular mechanisms of the development of an intracranial aneurysm (IA). Recent advancements over the last decade in the field of genetics and molecular biology have provided us a wide variety of evidences supporting the notion that chronic inflammation is closely associated with the pathogenesis of IA development. In the field of genetics, large-scale Genome-wide association studies (GWAS) has identified some IA susceptible loci and genes related to cell cycle and endothelial function. Researches in molecular biology using human samples and animal models have revealed the common pathway of the initiation, progression, and rupture of IAs. IA formation begins with endothelial dysfunction followed by pathological remodeling with degenerative changes of vascular walls. Medical treatments inhibiting inflammatory cascades in IA development are likely to prevent IA progression and rupture. Statins and aspirin are expected to suppress IA progression by their anti-inflammatory effects. Decoy oligodeoxynucleotides (ODNs) inhibiting inflammatory transcription factors such as nuclear factor kappa-B (NF-κB) and Ets-1 are the other promising choice of the prevention of IA development. Further clarification of molecular mechanisms of the formation and progression of IAs will shed light to the pathogenesis of IA development and provide insight into novel diagnostic and therapeutic strategies for IAs.
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Affiliation(s)
- Hiroharu Kataoka
- Department of Neurosurgery, National Cerebral and Cardiovascular Center
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205
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Newby AC. Metalloproteinases promote plaque rupture and myocardial infarction: A persuasive concept waiting for clinical translation. Matrix Biol 2015; 44-46:157-66. [PMID: 25636537 DOI: 10.1016/j.matbio.2015.01.015] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2014] [Revised: 01/20/2015] [Accepted: 01/20/2015] [Indexed: 02/05/2023]
Abstract
Atherosclerotic plaque rupture provokes most myocardial infarctions. Matrix metalloproteinases (MMPs) have counteracting roles in intimal thickening, which stabilizes plaques, on the one hand and extracellular matrix destruction that leads to plaque rupture on the other. This review briefly summarizes the key points supporting the involvement of individual MMPs in provoking plaque rupture and discusses the barriers that stand in the way of clinical translation, which can be itemised as follows: structural and functional complexity of the MMP family; lack of adequate preclinical models partly owing to different expression patterns of MMPs and TIMPs in mouse and human macrophages; the need to target individual MMPs selectively; the difficulties in establishing causality in human studies; and the requirement for surrogate markers of efficacy. Overcoming these barriers would open the way to new treatments that could have a major impact on cardiovascular mortality worldwide.
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Affiliation(s)
- Andrew C Newby
- University of Bristol, School of Clinical Sciences and Bristol Heart Institute, Bristol, UK.
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206
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Yu AP, Tam BT, Yau WY, Chan KS, Yu SS, Chung TL, Siu PM. Association of endothelin-1 and matrix metallopeptidase-9 with metabolic syndrome in middle-aged and older adults. Diabetol Metab Syndr 2015; 7:111. [PMID: 26692905 PMCID: PMC4676096 DOI: 10.1186/s13098-015-0108-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2015] [Accepted: 11/25/2015] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND Metabolic syndrome (MetS) contains a cluster of cardiovascular risk factors. People with MetS are more susceptible to cardiovascular disease, diabetes mellitus, and cancer. Endothelin-1 (ET-1) and matrix metallopeptidase-9 (MMP-9) have been implicated in the development of cardiovascular diseases, diabetes mellitus and cancers. This cross-sectional study aimed to examine the association of ET-1 and MMP-9 with MetS in middle-aged and older Hong Kong Chinese adults. METHODS 149 adults aged 50 to 92 (n = 75 for non-MetS group and n = 74 for MetS group) were examined. All subjects were screened for MetS according to the diagnostic guideline of the United States National Cholesterol Education Program (NCEP) Expert Panel Adult Treatment Panel (ATP) III criteria. Serum levels of ET-1 and MMP-9 were measured. Independent t test was used to detect differences between non-MetS and MetS groups and between subjects with or without certain metabolic abnormality. The association of the serum concentration of MMP-9 and ET-1 with MetS parameters were examined by Pearson's correlation analysis. RESULTS Serum level of ET-1 is higher in MetS-positive subjects and in subjects with high blood pressure, elevated fasting blood glucose, and central obesity. The serum concentration of MMP-9 is higher in subjects positively diagnosed with MetS and subjects with high blood pressure, elevated fasting blood glucose, low blood high-density lipoprotein-cholesterol (HDL-C), high blood triglycerides, and central obesity. Correlation analyses revealed that serum concentration of ET-1 is positively correlated to systolic blood pressure, waist circumference, fasting blood glucose, and age whereas it is negatively correlated to HDL-C. MMP-9 is positively correlated to systolic blood pressure, waist circumference, fasting blood glucose, and age whereas it is negatively correlated to HDL-C. CONCLUSION Serum ET-1 is higher in subjects with hypertension, hyperglycemia, central obesity or MetS. Serum MMP-9 is higher in subjects diagnosed with MetS or having either one of the MetS parameters. Both circulating levels of ET-1 and MMP-9 are correlated to systolic blood pressure, waist circumference, fasting blood glucose, HDL-C, and age. Further research is needed to fully dissect the role of ET-1 and MMP-9 in the development of cancers, diabetes and cardiovascular disease in relation to MetS.
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Affiliation(s)
- A. P. Yu
- Department of Health Technology and Informatics, Faculty of Health and Social Sciences, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
| | - B. T. Tam
- Department of Health Technology and Informatics, Faculty of Health and Social Sciences, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
| | - W. Y. Yau
- Department of Health Technology and Informatics, Faculty of Health and Social Sciences, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
| | - K. S. Chan
- Department of Health Technology and Informatics, Faculty of Health and Social Sciences, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
| | - S. S. Yu
- Department of Health Technology and Informatics, Faculty of Health and Social Sciences, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
| | - T. L. Chung
- Department of Health Technology and Informatics, Faculty of Health and Social Sciences, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
| | - P. M. Siu
- Department of Health Technology and Informatics, Faculty of Health and Social Sciences, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
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207
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Abstract
High-density lipoproteins (HDLs) exert many beneficial effects which may help to protect against the development or progression of atherosclerosis or even facilitate lesion regression. These activities include promoting cellular cholesterol efflux, protecting low-density lipoproteins (LDLs) from modification, preserving endothelial function, as well as anti-inflammatory and antithrombotic effects. However, questions remain about the relative importance of these activities for atheroprotection. Furthermore, the many molecules (both lipids and proteins) associated with HDLs exert both distinct and overlapping activities, which may be compromised by inflammatory conditions, resulting in either loss of function or even gain of dysfunction. This complexity of HDL functionality has so far precluded elucidation of distinct structure-function relationships for HDL or its components. A better understanding of HDL metabolism and structure-function relationships is therefore crucial to exploit HDLs and its associated components and cellular pathways as potential targets for anti-atherosclerotic therapies and diagnostic markers.
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Affiliation(s)
- Wijtske Annema
- Institute of Clinical Chemistry, University Hospital Zurich, Zurich, Switzerland,
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208
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Zheng XX, Zhou T, Wang XA, Tong XH, Ding JW. Histone deacetylases and atherosclerosis. Atherosclerosis 2014; 240:355-66. [PMID: 25875381 DOI: 10.1016/j.atherosclerosis.2014.12.048] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2014] [Revised: 12/17/2014] [Accepted: 12/18/2014] [Indexed: 01/13/2023]
Abstract
Atherosclerosis is the most common pathological process that leads to cardiovascular diseases, a disease of large- and medium-sized arteries that is characterized by a formation of atherosclerotic plaques consisting of necrotic cores, calcified regions, accumulated modified lipids, smooth muscle cells (SMCs), endothelial cells, leukocytes, and foam cells. Recently, the question about how to suppress the occurrence of atherosclerosis and alleviate the progress of cardiovascular disease becomes the hot topic. Accumulating evidence suggests that histone deacetylases(HDACs) play crucial roles in arteriosclerosis. This review summarizes the effect of HDACs and HDAC inhibitors(HDACi) on the progress of atherosclerosis.
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Affiliation(s)
- Xia-xia Zheng
- Department of Cardiology, The First College of Clinical Medical Sciences, China Three Gorges University, Yichang 443000, Hubei Province, China; Institute of Cardiovascular Diseases, China Three Gorges University, Yichang 443000, Hubei Province, China
| | - Tian Zhou
- Department of Cardiology, The First College of Clinical Medical Sciences, China Three Gorges University, Yichang 443000, Hubei Province, China; Institute of Cardiovascular Diseases, China Three Gorges University, Yichang 443000, Hubei Province, China
| | - Xin-An Wang
- Department of Cardiology, The First College of Clinical Medical Sciences, China Three Gorges University, Yichang 443000, Hubei Province, China; Institute of Cardiovascular Diseases, China Three Gorges University, Yichang 443000, Hubei Province, China
| | - Xiao-hong Tong
- Department of Cardiology, The First College of Clinical Medical Sciences, China Three Gorges University, Yichang 443000, Hubei Province, China; Institute of Cardiovascular Diseases, China Three Gorges University, Yichang 443000, Hubei Province, China
| | - Jia-wang Ding
- Department of Cardiology, The First College of Clinical Medical Sciences, China Three Gorges University, Yichang 443000, Hubei Province, China; Institute of Cardiovascular Diseases, China Three Gorges University, Yichang 443000, Hubei Province, China.
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209
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Tenenbaum A, Klempfner R, Fisman EZ. Hypertriglyceridemia: a too long unfairly neglected major cardiovascular risk factor. Cardiovasc Diabetol 2014; 13:159. [PMID: 25471221 PMCID: PMC4264548 DOI: 10.1186/s12933-014-0159-y] [Citation(s) in RCA: 118] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/24/2014] [Accepted: 11/25/2014] [Indexed: 12/27/2022] Open
Abstract
The existence of an independent association between elevated triglyceride (TG) levels, cardiovascular (CV) risk and mortality has been largely controversial. The main difficulty in isolating the effect of hypertriglyceridemia on CV risk is the fact that elevated triglyceride levels are commonly associated with concomitant changes in high density lipoprotein (HDL), low density lipoprotein (LDL) and other lipoproteins. As a result of this problem and in disregard of the real biological role of TG, its significance as a plausible therapeutic target was unfoundedly underestimated for many years. However, taking epidemiological data together, both moderate and severe hypertriglyceridaemia are associated with a substantially increased long term total mortality and CV risk. Plasma TG levels partially reflect the concentration of the triglyceride-carrying lipoproteins (TRL): very low density lipoprotein (VLDL), chylomicrons and their remnants. Furthermore, hypertriglyceridemia commonly leads to reduction in HDL and increase in atherogenic small dense LDL levels. TG may also stimulate atherogenesis by mechanisms, such excessive free fatty acids (FFA) release, production of proinflammatory cytokines, fibrinogen, coagulation factors and impairment of fibrinolysis. Genetic studies strongly support hypertriglyceridemia and high concentrations of TRL as causal risk factors for CV disease. The most common forms of hypertriglyceridemia are related to overweight and sedentary life style, which in turn lead to insulin resistance, metabolic syndrome (MS) and type 2 diabetes mellitus (T2DM). Intensive lifestyle therapy is the main initial treatment of hypertriglyceridemia. Statins are a cornerstone of the modern lipids-modifying therapy. If the primary goal is to lower TG levels, fibrates (bezafibrate and fenofibrate for monotherapy, and in combination with statin; gemfibrozil only for monotherapy) could be the preferable drugs. Also ezetimibe has mild positive effects in lowering TG. Initial experience with en ezetimibe/fibrates combination seems promising. The recently released IMPROVE-IT Trial is the first to prove that adding a non-statin drug (ezetimibe) to a statin lowers the risk of future CV events. In conclusion, the classical clinical paradigm of lipids-modifying treatment should be changed and high TG should be recognized as an important target for therapy in their own right. Hypertriglyceridemia should be treated.
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Affiliation(s)
- Alexander Tenenbaum
- Cardiac Rehabilitation Institute, Sheba Medical Center, 52621, Tel-Hashomer, Israel. .,Sackler Faculty of Medicine, Tel-Aviv University, 69978, Tel-Aviv, Israel. .,Cardiovascular Diabetology Research Foundation, 58484, Holon, Israel.
| | - Robert Klempfner
- Cardiac Rehabilitation Institute, Sheba Medical Center, 52621, Tel-Hashomer, Israel. .,Sackler Faculty of Medicine, Tel-Aviv University, 69978, Tel-Aviv, Israel.
| | - Enrique Z Fisman
- Sackler Faculty of Medicine, Tel-Aviv University, 69978, Tel-Aviv, Israel. .,Cardiovascular Diabetology Research Foundation, 58484, Holon, Israel.
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210
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Circulating acute phase proteins in relation to extent and composition of coronary atherosclerosis and cardiovascular outcome: Results from the ATHEROREMO-IVUS study. Int J Cardiol 2014; 177:847-53. [DOI: 10.1016/j.ijcard.2014.11.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2014] [Accepted: 11/01/2014] [Indexed: 12/13/2022]
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211
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Guo YS, Wu ZG, Yang JK, Chen XJ. Impact of losartan and angiotensin II on the expression of matrix metalloproteinase-9 and tissue inhibitor of metalloproteinase-1 in rat vascular smooth muscle cells. Mol Med Rep 2014; 11:1587-94. [PMID: 25405958 PMCID: PMC4270314 DOI: 10.3892/mmr.2014.2952] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2013] [Accepted: 06/20/2014] [Indexed: 12/04/2022] Open
Abstract
The present study aimed to investigate the impact of losartan and angiotensin II (AngII) on the expression of matrix metalloproteinase-9 (MMP-9) and tissue inhibitor of metalloproteinase-1 (TIMP-1), secreted by rat vascular smooth muscle cells (VSMCs). Rat VSMCs were isolated and cultured in different concentrations of AngII and losartan for 24 h and western blot analysis and quantitative polymerase chain reaction were performed to observe the subsequent impact on the gene and protein expression of MMP-9 and TIMP-1. AngII was shown to promote the protein and gene expression of MMP-9 in VSMCs in a concentration-dependent manner. No effect was observed on the expression of TIMP-1, therefore, an increase in the MMP-9/TIMP-1 ratio was observed. Losartan was shown to be able to inhibit MMP-9 protein and gene expression in a concentration-dependent manner, whilst promoting an increase in TIMP-1 expression, thus decreasing the ratio of MMP-9/TIMP-1. The combined action of losartan and AngII resulted in the same directional changes in MMP-9 and TIMP-1 expression as observed for losartan alone. The comparison of AngII, losartan and the combinatory effect on the expression of MMP-9 and TIMP-1 in VSMCs indicated that losartan inhibited the effects of AngII, therefore reducing the MMP-9/TIMP-1 ratio, which may contribute to the molecular mechanism of losartan in preventing atherosclerosis. In atherosclerosis, the development of the extracellular matrix of plaque is closely correlated with the evolution of AS. The balance between MMPs and TIMPs is important in maintaining the dynamic equilibrium between the ECM, and the renin-angiotensin-aldosterone system, which is involved in the pathologenesis of AS, and in which AngII has a central role.
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Affiliation(s)
- Yan-Song Guo
- Department of Cardiology, Provincial Clinical Medical College of Fujian Medical University, Fujian Institute of Cardiovascular Disease, Fujian Provincial Hospital, Fuzhou 350001, P.R. China
| | - Zong-Gui Wu
- Department of Cardiology, Changzheng Hospital, Second Military Medical University, Shanghai 200433, P.R. China
| | - Jun-Ke Yang
- Department of Cardiology, General Hospital of PLA Second Artillery, Beijing 100088, P.R. China
| | - Xin-Jing Chen
- Department of Cardiology, Provincial Clinical Medical College of Fujian Medical University, Fujian Institute of Cardiovascular Disease, Fujian Provincial Hospital, Fuzhou 350001, P.R. China
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212
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Wang X, Shi LZ. Association of matrix metalloproteinase-9 C1562T polymorphism and coronary artery disease: a meta-analysis. J Zhejiang Univ Sci B 2014; 15:256-63. [PMID: 24599689 DOI: 10.1631/jzus.b1300088] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
OBJECTIVE Many investigations have studied the associations between matrix metalloproteinase-9 (MMP-9) C1562T polymorphisms and coronary artery disease (CAD). However, the conclusions of these studies were inconsistent. Therefore, this study was aimed at clarifying the association between MMP-9 C1562T polymorphisms and CAD in a large-scale meta-analysis. METHODS The PubMed and Embase databases were retrieved to collect all publications on the association between MMP-9 C1562T polymorphisms and CAD. Then the odd ratios (ORs) and 95% confidence intervals (95% CIs) for C1562T TT+TC versus CC genotype between CAD and the control groups were evaluated. Subgroup analysis was also performed according to different races. The meta-analysis was performed by Stata 10.0. RESULTS Sixteen case-control studies were included in our meta-analysis, involving 11032 CAD patients and 4628 non-CAD controls. Compared with C allele carriers, East Asian T allele carriers TT+TC had a significantly higher risk of CAD (OR=1.43; 95% CI: 1.03-1.99; P=0.031); however, there were no significant associations in Western populations (OR=1.06; 95% CI: 0.96-1.18; P=0.240) or West Asians (OR=1.13; 95% CI: 0.75-1.70; P=0.565). When further analyzing the association between C1562T polymorphisms and myocardial infarction (MI, the most serious type of CAD), the risk of TT+TC genotype versus CC genotype for MI was significantly higher for the overall (OR=1.21; 95% CI: 1.04-1.40; P=0.012) and for East Asians (OR=1.58; 95% CI: 1.26-1.97; P=0.000) but not in Western populations (OR=1.12; 95% CI: 0.99-1.26; P=0.078). CONCLUSIONS Our meta-analysis suggested an obvious ethnic difference in the association between MMP-9 C1562T polymorphisms and CAD. MMP-9 C1562T polymorphism was significantly related to CAD in East Asians. However, no significant associations were observed in either West Asians or Western populations.
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Affiliation(s)
- Xiao Wang
- Department of Emergency, Zhejiang Hospital, Hangzhou 310013, China; Department of Thoracic Minimally Invasive Surgery, Linyi People's Hospital, Linyi 276000, China
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213
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Uluçay S, Çam FS, Batır MB, Sütçü R, Bayturan Ö, Demircan K. A novel association between TGFb1 and ADAMTS4 in coronary artery disease: A new potential mechanism in the progression of atherosclerosis and diabetes. Anatol J Cardiol 2014; 15:823-9. [PMID: 25592103 PMCID: PMC5336969 DOI: 10.5152/akd.2014.5762] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Objective: Coronary artery disease is characterized by atherosclerosis in the vessel wall. Recently, it has been thought that increasing LDL-binding capacity of subendothelial proteoglycan fragments that are formed by protease activity can be responsible for the initiation of atherosclerosis. ADAMTS4 is a member of the versican-degrading proteinases. In vitro studies demonstrated that TGFβ inhibits the expression of ADAMTS4 in macrophages. In this study, we aimed to investigate the role and association between TGFβ1 and ADAMTS4 in coronary artery disease. Methods: A total of 84 cases with atheroma plaque and 72 controls without plaque were analyzed. The severity of disease was determined by Gensini score. TGFβ1 gene polymorphisms were genotyped by the PCR-RFLP method. TGFβ1 and ADAMTS4 serum levels were measured by ELISA method. Statistical analyses of genotypes and their relationship with serum levels were performed by chi-square, student t test and ANOVA. Results: ADAMTS4 levels were higher in cases compared with controls (p<0.05). In the patient group, ADAMTS4 levels were higher than in controls and correlated with TGFβ1 serum levels (r=0.29; p<0.05) and severity of disease (r=0.20; p<0.05). The TGFβ1 gene CCA haplotype was associated with 3.3-fold increase in coronary artery disease (OR=3.26 95% CI 1.22-8.68; p<0.05). Unexpectedly, ADAMTS4 serum levels were also higher in diabetic cases (p=0.05). Conclusion: This study has demonstrated that ADAMTS4 may be responsible for the pathogenesis of atherosclerosis. This is the first report about the association between ADAMTS4 and TGFβ1 serum levels in the progression of atherosclerosis in CAD. Furthermore, it is seen that TGFβ1 haplotype can cause a genetic susceptibility to CAD in the Turkish population. To our knowledge, this is also the first report suggesting higher serum ADAMTS4 levels in diabetic patients.
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Affiliation(s)
- Safiye Uluçay
- Department of Medical Genetics, Faculty of Medicine, Celal Bayar University; Manisa Turkey.
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214
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Abstract
PURPOSE OF REVIEW To review progress over the past 5 years in relating extracellular proteinases to plaque rupture, the cause of most myocardial infarctions, and consider the most promising prospects for developing related treatments. RECENT FINDINGS Cysteinyl cathepsins have been implicated in multiple macrophage functions that could promote plaque rupture. Cathepsin K is an attractive target because it is a collagenase and selective inhibitors are already being used in phase III clinical trials. Several serine proteinases clearly influence vascular remodelling and atherogenesis but important, unrelated actions limit their value as therapeutic targets. Among the metalloproteinases, new evidence supports roles for A Disintigrin and Metalloproteinases (ADAMs), including ADAM-10, ADAM-17 and ADAM-33, which suggest that selective inhibitors might be effective treatments. For ADAMs with ThromboSpondin domains (ADAMTSs), there are biological and genome-wide association data linking ADAMTS-7 to incidence of coronary heart disease but not increased risk of myocardial infarctions. In the case of matrix metalloproteinases (MMPs), selective inhibitors of MMP-12 and MMP-13 are available and may be appropriate for development as therapies. Novel targets, including MMP-8, MMP-10, MMP-14, MMP-19, MMP-25 and MMP-28, are also being considered. SUMMARY New opportunities exist to exploit proteinases as therapeutic targets in plaque rupture.
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Affiliation(s)
- Andrew C Newby
- University of Bristol and Bristol Heart Institute, Bristol, UK
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215
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Wang L, Ma YT, Xie X, Yang YN, Fu ZY, Liu F, Li XM, Chen BD. Association of MMP-9 gene polymorphisms with acute coronary syndrome in the Uygur population of China. World J Emerg Med 2014; 2:104-10. [PMID: 25214993 DOI: 10.5847/wjem.j.1920-8642.2011.02.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2010] [Accepted: 03/17/2011] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Matrix metalloproteinase-9 (MMP-9) plays a pivotal role in early atherosclerosis, vascular remodeling and development of atherosclerotic lesion. The potentially functional MMP-9 gene polymorphism may contribute to the susceptibility of acute coronary syndrome (ACS). This study aimed to investigate the association between two single nucleotide polymorphisms (-1562C>T, R279Q) of the MMP-9 gene in patients with ACS in the Uygur population of China. METHODS This case-control study was composed of 361 ACS patients and 432 control subjects, who had undergone coronary angiography. Among the ACS patients, 162 (44.9%) had single-vessel disease, 145 (40.2%) had two-vessel disease, and 54 (14.9%) had three-vessel disease. The genotypes of the two selected SNPs were determined by the method of polymerase chain reaction and restriction fragment length polymorphism (RFLP-PCR). The relationship between the polymorphism of the MMP-9 gene and the severity of coronary arterial stenosis was analyzed. RESULTS Analysis of the two SNPs showed that the frequency of CT and TT genotypes in patients with ACS was significantly higher than that in the control group (ACS vs. controls; CT+TT: 25.5% vs. 15.8%, P=0.001). And the -1562 gene allele (C/T) was significantly associated with acute coronary syndrome (ACS vs. controls; C allele: 85.7% vs. 91.5%, T allele: 14.3% vs. 8.5%, P<0.001). But the frequencies of CT+TT and CC genotypes were not statistically different among ACS patients with one, two and three or more significantly diseased vessels (P=0.55). The R279Q polymorphism site with regard to the association with ACS was not significant (P>0.05). The presence of CT or TT genotypes, assuming codominant effect of the T allele, was independently associated with increased risk of coronary artery disease when adjustment was made for age, body mass index, smoking, hypertension and diabetes mellitus [odds ratio=1.737 (95% confidence interval, 1.337-2.257), P=0.018]. CONCLUSIONS MMP-9-1562C>T polymorphism is associated with the susceptibility to ACS in the Uygur population of China. However, this mutation apparently is not related to the severity of coronary arterial stenosis. Another SNP (R279Q) polymorphism of MMP-9 is not significantly associated with the risk of ACS.
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Affiliation(s)
- Lei Wang
- Department of Cardiology, First Teaching Hospital of Xinjiang Medical University, Urumqi 830011, China
| | - Yi-Tong Ma
- Department of Cardiology, First Teaching Hospital of Xinjiang Medical University, Urumqi 830011, China
| | - Xiang Xie
- Department of Cardiology, First Teaching Hospital of Xinjiang Medical University, Urumqi 830011, China
| | - Yi-Ning Yang
- Department of Cardiology, First Teaching Hospital of Xinjiang Medical University, Urumqi 830011, China
| | - Zhen-Yan Fu
- Department of Cardiology, First Teaching Hospital of Xinjiang Medical University, Urumqi 830011, China
| | - Fen Liu
- Department of Cardiology, First Teaching Hospital of Xinjiang Medical University, Urumqi 830011, China
| | - Xiao-Mei Li
- Department of Cardiology, First Teaching Hospital of Xinjiang Medical University, Urumqi 830011, China
| | - Bang-Dang Chen
- Department of Cardiology, First Teaching Hospital of Xinjiang Medical University, Urumqi 830011, China
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Relationship of MMP-14 and TIMP-3 expression with macrophage activation and human atherosclerotic plaque vulnerability. Mediators Inflamm 2014; 2014:276457. [PMID: 25301980 PMCID: PMC4163186 DOI: 10.1155/2014/276457] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2014] [Revised: 07/09/2014] [Accepted: 07/21/2014] [Indexed: 12/15/2022] Open
Abstract
Matrix metalloproteinase-14 (MMP-14) promotes vulnerable plaque morphology in mice, whereas tissue inhibitor of metalloproteinases-3 (TIMP-3) overexpression is protective. MMP-14(hi) TIMP-3(lo) rabbit foam cells are more invasive and more prone to apoptosis than MMP-14(lo) TIMP-3(hi) cells. We investigated the implications of these findings for human atherosclerosis. In vitro generated macrophages and foam-cell macrophages, together with atherosclerotic plaques characterised as unstable or stable, were examined for expression of MMP-14, TIMP-3, and inflammatory markers. Proinflammatory stimuli increased MMP-14 and decreased TIMP-3 mRNA and protein expression in human macrophages. However, conversion to foam-cells with oxidized LDL increased MMP-14 and decreased TIMP-3 protein, independently of inflammatory mediators and partly through posttranscriptional mechanisms. Within atherosclerotic plaques, MMP-14 was prominent in foam-cells with either pro- or anti-inflammatory macrophage markers, whereas TIMP-3 was present in less foamy macrophages and colocalised with CD206. MMP-14 positive macrophages were more abundant whereas TIMP-3 positive macrophages were less abundant in plaques histologically designated as rupture prone. We conclude that foam-cells characterised by high MMP-14 and low TIMP-3 expression are prevalent in rupture-prone atherosclerotic plaques, independent of pro- or anti-inflammatory activation. Therefore reducing MMP-14 activity and increasing that of TIMP-3 could be valid therapeutic approaches to reduce plaque rupture and myocardial infarction.
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217
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TIMP2 gene polymorphisms are associated with hypertension in patients with myocardial infarction. J Genet 2014; 93:517-22. [DOI: 10.1007/s12041-014-0388-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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218
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Seo E, Seo KW, Gil JE, Ha YR, Yeom E, Lee S, Lee SJ. Biophysiochemical properties of endothelial cells cultured on bio-inspired collagen films. BMC Biotechnol 2014; 14:61. [PMID: 24984812 PMCID: PMC4085646 DOI: 10.1186/1472-6750-14-61] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2014] [Accepted: 06/26/2014] [Indexed: 11/23/2022] Open
Abstract
Background In this study, we investigated the effect of the extracellular matrix on
endothelial dysfunction by careful observation of human umbilical vein
endothelial cells (HUVECs) cultured on denatured collagen film. Results HUVECs on denatured collagen film showed relatively high surface roughness
compared with normal HUVECs. The expression levels of MMP-1, MMP-2 and CD146
increased in the ECs on denatured collagen film. In addition, we examined
the accumulation of fluorescent beads on HUVEC layers subjected to
circulatory flow. The number of accumulated fluorescent beads increased on
the disorganized HUVEC layers. Conclusions The proposed in vitro study using bio-inspired collagen films could
potentially be used in the size- and ligand-based design of drugs to treat
endothelial dysfunction caused by circulatory vascular diseases.
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Affiliation(s)
| | | | | | | | | | | | - Sang Joon Lee
- Division of Integrative Biosciences and Biotechnology, Pohang University of Science and Technology, San 31, Hyoja-dong, Nam-Gu, Pohang, Gyeongbuk 790-784, Korea.
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Di Gregoli K, Jenkins N, Salter R, White S, Newby AC, Johnson JL. MicroRNA-24 regulates macrophage behavior and retards atherosclerosis. Arterioscler Thromb Vasc Biol 2014; 34:1990-2000. [PMID: 24990232 DOI: 10.1161/atvbaha.114.304088] [Citation(s) in RCA: 90] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
OBJECTIVE Our recent studies have highlighted membrane type-1 matrix metalloproteinase (MMP)-14 as a selective marker for an invasive subset of macrophages potentially related to atherosclerotic plaque progression. Moreover, colony stimulating factors (CSF) may exert divergent effects on macrophage MMP expression, possibly through microRNAs. We, therefore, aim to identify and test the pathophysiological role of microRNAs, which modulate macrophage MMP-14 expression in atherosclerotic plaque progression. APPROACH AND RESULTS Compared with macrophage CSF-differentiated macrophages, granulocyte/macrophage CSF-matured macrophages exhibited reduced MMP-14 mRNA levels but increased protein expression and activity, which resulted in heightened macrophage invasion. MicroRNA-24, identified to target MMP-14, was accordingly increased in macrophage CSF compared with granulocyte/macrophage CSF macrophages. Silencing microRNA-24 in macrophage CSF macrophages significantly increased MMP-14 expression and enhanced their invasive capacity, mimicking granulocyte/macrophage CSF macrophages, and suggesting that granulocyte/macrophage CSF modulates MMP-14 protein expression and subsequent macrophage invasion in a microRNA-24-dependent manner. In human coronary atherosclerotic plaques, increased MMP-14 protein expression in foam cell macrophages was associated with lesions exhibiting histological characteristics associated with an unstable phenotype. Furthermore, microRNA-24 expression in these atherosclerotic plaques was inversely related to MMP-14 protein expression. Moreover, stable plaques contained higher microRNA-24 levels than unstable plaques, and microRNA-24 colocalized with foam cell macrophages that exhibited low MMP-14 protein expression. Finally, in atherosclerotic mice (apolipoprotein E-deficient), microRNA-24 inhibition increased plaque size and macrophage MMP-14 expression. CONCLUSIONS Taken together, our data demonstrates that downregulation of microRNA-24 promotes an invasive macrophage subset and plays a novel regulatory role in MMP-14 proteolytic activity and, therefore, plaque stability, highlighting its therapeutic potential.
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Affiliation(s)
- Karina Di Gregoli
- From the School of Clinical Sciences, University of Bristol, Bristol, England, United Kingdom
| | - Nicholas Jenkins
- From the School of Clinical Sciences, University of Bristol, Bristol, England, United Kingdom
| | - Rebecca Salter
- From the School of Clinical Sciences, University of Bristol, Bristol, England, United Kingdom
| | - Stephen White
- From the School of Clinical Sciences, University of Bristol, Bristol, England, United Kingdom
| | - Andrew C Newby
- From the School of Clinical Sciences, University of Bristol, Bristol, England, United Kingdom
| | - Jason L Johnson
- From the School of Clinical Sciences, University of Bristol, Bristol, England, United Kingdom.
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Visnagri A, Kandhare AD, Chakravarty S, Ghosh P, Bodhankar SL. Hesperidin, a flavanoglycone attenuates experimental diabetic neuropathy via modulation of cellular and biochemical marker to improve nerve functions. PHARMACEUTICAL BIOLOGY 2014; 52:814-828. [PMID: 24559476 DOI: 10.3109/13880209.2013.870584] [Citation(s) in RCA: 112] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
AIM Diabetic neuropathy (DN) is one of the most common long-term complications of diabetes mellitus and clinically can be characterized by an elevated nociceptive response with electrophysiological conduction abnormalities. The present investigation was designed to evaluate the neuroprotective effect of hesperidin against STZ induced diabetic neuropathic pain in laboratory rats. MATERIALS AND METHODS DN was induced in Sprague-Dawley rats (150-200 g) by intraperitoneal administration of streptozotocin (STZ) (55 mg/kg, p.o.). Rats were divided into various groups, namely, STZ control (vehicle), hesperidin (25, 50, and 100 mg/kg, p.o.), insulin (10 IU/kg, s.c.), and combination of hesperidin (100 mg/kg, p.o.) with insulin (10 IU/kg, s.c.) for 4 weeks. Various behavioral (allodynia and hyperalgesia), biochemical parameters [oxido-nitosative stress, Na-K-ATPase, aldose reductase (AR)], and molecular changes (TNF-α and IL-1β) along with hemodynamic changes were determined. RESULTS Rats treated with hesperidin (50 and 100 mg/kg, p.o., 4 weeks) significantly reduced (p < 0.05) hyperglycemia and its metabolic abnormalities induced by intraperitoneal administration of STZ. The decreased nociceptive threshold, motor nerve conduction velocity (MNCV) and sensory nerve conduction velocity (SNCV), serum insulin as well as Na-K-ATPase activity were significantly increase (p < 0.05) by hesperidin (50 and 100 mg/kg, p.o.) treatment. It significantly attenuated (p < 0.05) elevated glycated hemoglobin, AR activity, oxido-nitrosative stress, neural calcium, and pro-inflammatory cytokines (TNF-α and IL-1β) levels. Histological aberration induced after STZ administration was restored by administration of hesperidin (50 and 100 mg/kg, p.o.) CONCLUSION In combination with insulin, hesperidin not only attenuated the diabetic condition but also reversed neuropathic pain via control over hyperglycemia as well as hyperlipidemia to down-regulate generation of free radical, release of pro-inflammatory cytokines as well as elevation in membrane bound enzyme.
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Affiliation(s)
- Asjad Visnagri
- Department of Pharmacology, Poona College of Pharmacy, Bharati Vidyapeeth Deemed University , Pune, Maharashtra , India
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Chehaibi K, Hrira MY, Nouira S, Maatouk F, Hamda KB, Slimane MN. Matrix metalloproteinase-1 and matrix metalloproteinase-12 gene polymorphisms and the risk of ischemic stroke in a Tunisian population. J Neurol Sci 2014; 342:107-13. [DOI: 10.1016/j.jns.2014.04.036] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2014] [Revised: 04/15/2014] [Accepted: 04/23/2014] [Indexed: 11/29/2022]
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Clancy P, Lincz LF, Maguire J, McEvoy M, Koblar SA, Golledge J. Tenascin-C is increased in atherothrombotic stroke patients and has an anti-inflammatory effect in the human carotid artery. Biofactors 2014; 40:448-57. [PMID: 24823872 DOI: 10.1002/biof.1170] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2014] [Revised: 04/14/2014] [Accepted: 05/01/2014] [Indexed: 12/14/2022]
Abstract
Tenascin-C (Tn-C) is an endogenous ligand of toll-like receptor-4 (TLR-4); a key signalling molecule associated with chronic inflammatory conditions. Both Tn-C and TLR-4 are increased in unstable human atheroma, but their effects on local inflammatory conditions have not been investigated. The aim of the present study was to investigate the association and functional implications of Tn-C/TLR-4 signalling in large artery atherosclerotic stroke. Plasma Tn-C was measured by ELISA and found to be higher in recent stroke patients (n = 336; median 12.77 µg/mL, inter-quartile range 10.23-15.74 µg/mL) than in controls (n = 321; median 11.31 µg/mL, inter-quartile range 8.89-13.90 µg/mL), P < 0.001. Plasma Tn-C was also independently positively associated with stroke (odds ratio for highest Tn-C quartile 2.27, 95% confidence interval 1.37-3.76). Assessment of Tn-C associated chronic cytokine secretion was performed in vitro using paired, human, macroscopically disease matched, carotid atheroma tissue biopsies obtained from five patients undergoing carotid endarterectomy. A 4-day incubation with specific Tn-C blocking antibodies (Abs) increased secretion of TLR-4-associated cytokines, interleukin (IL)-8, IL-1β, tumour necrosis factor and C-C motif chemokine (CCL)3 and expression of TLR-4 in the tissue. These results suggest with Tn-C blockade another endogenous TLR-4 ligand upregulates TLR-4 expression and subsequent cytokine secretion. Titration of the Tn-C Abs also dose dependently increased secretion of IL-6, IL-8, IL-1β, and CCL3 in mixed, healthy, primary vascular cell culture. In summary, circulating concentrations of Tn-C are higher in patients with a recent history of atherosclerotic stroke and may play an anti-inflammatory role by reducing pro-inflammatory cytokine release from atheroma.
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Affiliation(s)
- Paula Clancy
- Health practitioners And Researchers Together-Blood, Endothelium And Tissue (HART-BEAT), Australian Institute for Tropical Health and Medicine, School of Veterinary and Biomedical Sciences, James Cook University, Townsville, QLD, Australia
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Irvin MR, Zhi D, Aslibekyan S, Claas SA, Absher DM, Ordovas JM, Tiwari HK, Watkins S, Arnett DK. Genomics of post-prandial lipidomic phenotypes in the Genetics of Lipid lowering Drugs and Diet Network (GOLDN) study. PLoS One 2014; 9:e99509. [PMID: 24905834 PMCID: PMC4048279 DOI: 10.1371/journal.pone.0099509] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2013] [Accepted: 05/15/2014] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Increased postprandial lipid (PPL) response to dietary fat intake is a heritable risk factor for cardiovascular disease (CVD). Variability in postprandial lipids results from the complex interplay of dietary and genetic factors. We hypothesized that detailed lipid profiles (eg, sterols and fatty acids) may help elucidate specific genetic and dietary pathways contributing to the PPL response. METHODS AND RESULTS We used gas chromatography mass spectrometry to quantify the change in plasma concentration of 35 fatty acids and 11 sterols between fasting and 3.5 hours after the consumption of a high-fat meal (PPL challenge) among 40 participants from the GOLDN study. Correlations between sterols, fatty acids and clinical measures were calculated. Mixed linear regression was used to evaluate associations between lipidomic profiles and genomic markers including single nucleotide polymorphisms (SNPs) and methylation markers derived from the Affymetrix 6.0 array and the Illumina Methyl450 array, respectively. After the PPL challenge, fatty acids increased as well as sterols associated with cholesterol absorption, while sterols associated with cholesterol synthesis decreased. PPL saturated fatty acids strongly correlated with triglycerides, very low-density lipoprotein, and chylomicrons. Two SNPs (rs12247017 and rs12240292) in the sorbin and SH3 domain containing 1 (SORBS1) gene were associated with b-Sitosterol after correction for multiple testing (P≤4.5*10(-10)). SORBS1 has been linked to obesity and insulin signaling. No other markers reached the genome-wide significance threshold, yet several other biologically relevant loci are highlighted (eg, PRIC285, a co-activator of PPARa). CONCLUSIONS Integration of lipidomic and genomic data has the potential to identify new biomarkers of CVD risk.
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Affiliation(s)
- Marguerite R. Irvin
- Department of Epidemiology, School of Public Health, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
- * E-mail:
| | - Degui Zhi
- Department of Biostatistics, School of Public Health, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
| | - Stella Aslibekyan
- Department of Epidemiology, School of Public Health, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
| | - Steven A. Claas
- Department of Epidemiology, School of Public Health, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
| | - Devin M. Absher
- HudsonAlpha Institute for Biotechnology, Huntsville, Alabama, United States of America
| | - Jose M. Ordovas
- Department of Epidemiology, Atherothrombosis and Imaging, Centro Nacional de Investigaciones Cardiovasculares, Madrid, Spain
- Instituto Madrileño de Estudios Avanzados Alimentacion, Madrid, Spain
- Jean Mayer USDA Human Nutrition Research Center on Aging, Tufts University, Boston, Massachusetts, United States of America
| | - Hemant K. Tiwari
- Department of Biostatistics, School of Public Health, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
| | - Steve Watkins
- Metabolon, Lipomics Division, Research Triangle Park, North Carolina, United States of America
| | - Donna K. Arnett
- Department of Epidemiology, School of Public Health, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
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Toovey OTR, Dickens GJE. Percutaneous enzyme emulsification endarterectomy. Surgery 2014; 155:974-6. [PMID: 24856118 DOI: 10.1016/j.surg.2014.02.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2013] [Accepted: 02/04/2014] [Indexed: 10/25/2022]
Affiliation(s)
- Oliver T R Toovey
- Department of Surgery, University Hospitals Coventry and Warwickshire NHS Trust, Coventry, UK.
| | - Gregory J E Dickens
- Department of Surgery, University Hospitals Coventry and Warwickshire NHS Trust, Coventry, UK
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225
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Lohoefer F, Reeps C, Lipp C, Rudelius M, Haertl F, Matevossian E, Zernecke A, Eckstein HH, Pelisek J. Quantitative expression and localization of cysteine and aspartic proteases in human abdominal aortic aneurysms. Exp Mol Med 2014; 46:e95. [PMID: 24833013 PMCID: PMC3972792 DOI: 10.1038/emm.2014.20] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2013] [Revised: 10/24/2013] [Accepted: 12/26/2013] [Indexed: 11/17/2022] Open
Abstract
Cysteine and aspartic proteases possess high elastolytic activity and might contribute to the degradation of the abdominal aortic aneurysm (AAA) wall. The aim of this study was to analyze, in detail, the proteases (cathepsins B, D, K, L and S, and inhibitor cystatin C) found in human AAA and healthy aortic tissue samples. The vessel walls from AAA patients (n=36) and nonaneurysmal aortae (n=10) were retrieved using conventional surgical repair and autopsy methods. Serum samples from the same AAA patients and 10 healthy volunteers were also collected. Quantitative expression analyses were performed at the mRNA level using real-time reverse transcriptase-PCR (RT–PCR). Furthermore, analyses at the protein level included western blot and immunoprecipitation analyses. Cellular sources of cysteine/aspartic proteases and cystatin C were identified by immunohistochemistry (IHC). All cysteine/aspartic proteases and cystatin C were detected in the AAA and control samples. Using quantitative RT–PCR, a significant increase in expression was observed for cathepsins B (P=0.021) and L (P=0.018), compared with the controls. Cathepsin B and cystatin C were also detected in the serum of AAA patients. Using IHC, smooth muscle cells (SMCs) and macrophages were positive for all of the tested cathepsins, as well as cystatin C; in addition, the lymphocytes were mainly positive for cathepsin B, followed by cathepsins D and S. All cysteine/aspartic proteases analyzed in our study were detected in the AAA and healthy aorta. The highest expression was found in macrophages and SMCs. Consequently, cysteine/aspartic proteases might play a substantial role in AAA.
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Affiliation(s)
- Fabian Lohoefer
- Department of Vascular and Endovascular Surgery, Klinikum rechts der Isar der Technischen Universitaet Muenchen, Munich, Germany
| | - Christian Reeps
- Department of Vascular and Endovascular Surgery, Klinikum rechts der Isar der Technischen Universitaet Muenchen, Munich, Germany
| | - Christina Lipp
- Department of Vascular and Endovascular Surgery, Klinikum rechts der Isar der Technischen Universitaet Muenchen, Munich, Germany
| | - Martina Rudelius
- Institute of Pathology, Klinikum rechts der Isar der Technischen Universitaet Muenchen, Munich, Germany
| | - Felix Haertl
- Department of Vascular and Endovascular Surgery, Klinikum rechts der Isar der Technischen Universitaet Muenchen, Munich, Germany
| | - Edouard Matevossian
- Department of Surgery, Klinikum rechts der Isar der Technischen Universitaet Muenchen, Munich, Germany
| | - Alma Zernecke
- Department of Vascular and Endovascular Surgery, Klinikum rechts der Isar der Technischen Universitaet Muenchen, Munich, Germany
| | - Hans-Henning Eckstein
- Department of Vascular and Endovascular Surgery, Klinikum rechts der Isar der Technischen Universitaet Muenchen, Munich, Germany
| | - Jaroslav Pelisek
- Department of Vascular and Endovascular Surgery, Klinikum rechts der Isar der Technischen Universitaet Muenchen, Munich, Germany
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Ribeiro MS, Dellalibera-Joviliano R, Becari C, Teixeira FR, Araujo PV, Piccinato CE, Campos CP, Evora PRB, Joviliano EE. Characterization of the Kallikrein-kinin System, Metalloproteinases, and Their Tissue Inhibitors in the In-stent Restenosis after Peripheral Percutaneous Angioplasty. Ann Vasc Surg 2014; 28:1005-15. [DOI: 10.1016/j.avsg.2013.11.014] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2013] [Revised: 10/15/2013] [Accepted: 11/09/2013] [Indexed: 10/25/2022]
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227
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Shi JJ, He TT, Jiang F, Abdel-Halim E, Zhu JJ. Ultrasensitive multi-analyte electrochemical immunoassay based on GNR-modified heated screen-printed carbon electrodes and PS@PDA-metal labels for rapid detection of MMP-9 and IL-6. Biosens Bioelectron 2014; 55:51-6. [DOI: 10.1016/j.bios.2013.11.056] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2013] [Revised: 11/10/2013] [Accepted: 11/20/2013] [Indexed: 11/25/2022]
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Müller A, Krämer SD, Meletta R, Beck K, Selivanova SV, Rancic Z, Kaufmann PA, Vos B, Meding J, Stellfeld T, Heinrich TK, Bauser M, Hütter J, Dinkelborg LM, Schibli R, Ametamey SM. Gene expression levels of matrix metalloproteinases in human atherosclerotic plaques and evaluation of radiolabeled inhibitors as imaging agents for plaque vulnerability. Nucl Med Biol 2014; 41:562-9. [PMID: 24853402 DOI: 10.1016/j.nucmedbio.2014.04.085] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2014] [Revised: 04/10/2014] [Accepted: 04/12/2014] [Indexed: 11/28/2022]
Abstract
INTRODUCTION Atherosclerotic plaque rupture is the primary cause for myocardial infarction and stroke. During plaque progression macrophages and mast cells secrete matrix-degrading proteolytic enzymes, such as matrix metalloproteinases (MMPs). We studied levels of MMPs and tissue inhibitor of metalloproteinases-3 (TIMP-3) in relation to the characteristics of carotid plaques. We evaluated in vitro two radiolabeled probes targeting active MMPs towards non-invasive imaging of rupture-prone plaques. METHODS Human carotid plaques obtained from endarterectomy were classified into stable and vulnerable by visual and histological analysis. MMP-1, MMP-2, MMP-8, MMP-9, MMP-10, MMP-12, MMP-14, TIMP-3, and CD68 levels were investigated by quantitative polymerase chain reaction. Immunohistochemistry was used to localize MMP-2 and MMP-9 with respect to CD68-expressing macrophages. Western blotting was applied to detect their active forms. A fluorine-18-labeled MMP-2/MMP-9 inhibitor and a tritiated selective MMP-9 inhibitor were evaluated by in vitro autoradiography as potential lead structures for non-invasive imaging. RESULTS Gene expression levels of all MMPs and CD68 were elevated in plaques. MMP-1, MMP-9, MMP-12 and MMP-14 were significantly higher in vulnerable than stable plaques. TIMP-3 expression was highest in stable and low in vulnerable plaques. Immunohistochemistry revealed intensive staining of MMP-9 in vulnerable plaques. Western blotting confirmed presence of the active form in plaque lysates. In vitro autoradiography showed binding of both inhibitors to stable and vulnerable plaques. CONCLUSIONS MMPs differed in their expression patterns among plaque phenotypes, providing possible imaging targets. The two tested MMP-2/MMP-9 and MMP-9 inhibitors may be useful to detect atherosclerotic plaques, but not the vulnerable lesions selectively.
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Affiliation(s)
- Adrienne Müller
- Center for Radiopharmaceutical Sciences, ETH Zurich, Zurich, Switzerland.
| | - Stefanie D Krämer
- Center for Radiopharmaceutical Sciences, ETH Zurich, Zurich, Switzerland
| | - Romana Meletta
- Center for Radiopharmaceutical Sciences, ETH Zurich, Zurich, Switzerland
| | - Katharina Beck
- Center for Radiopharmaceutical Sciences, ETH Zurich, Zurich, Switzerland
| | | | - Zoran Rancic
- Clinic for Cardiovascular Surgery, University Hospital Zurich, Zurich, Switzerland
| | - Philipp A Kaufmann
- Department of Nuclear Medicine, University Hospital Zurich, Zurich, Switzerland
| | - Bernhard Vos
- Global Drug Discovery, Bayer Healthcare, Berlin, Germany
| | - Jörg Meding
- Global Drug Discovery, Bayer Healthcare, Berlin, Germany
| | - Timo Stellfeld
- Global Drug Discovery, Bayer Healthcare, Berlin, Germany
| | | | - Marcus Bauser
- Global Drug Discovery, Bayer Healthcare, Berlin, Germany
| | - Joachim Hütter
- Global Drug Discovery, Bayer Healthcare, Berlin, Germany
| | | | - Roger Schibli
- Center for Radiopharmaceutical Sciences, ETH Zurich, Zurich, Switzerland
| | - Simon M Ametamey
- Center for Radiopharmaceutical Sciences, ETH Zurich, Zurich, Switzerland
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Miyabe M, Ohashi K, Shibata R, Uemura Y, Ogura Y, Yuasa D, Kambara T, Kataoka Y, Yamamoto T, Matsuo K, Joki Y, Enomoto T, Hayakawa S, Hiramatsu-Ito M, Ito M, Van Den Hoff MJB, Walsh K, Murohara T, Ouchi N. Muscle-derived follistatin-like 1 functions to reduce neointimal formation after vascular injury. Cardiovasc Res 2014; 103:111-20. [PMID: 24743592 DOI: 10.1093/cvr/cvu105] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
AIMS It is well-established that exercise diminishes cardiovascular risk, but whether humoral factors secreted by muscle confer these benefits has not been conclusively shown. We have shown that the secreted protein follistatin-like 1 (Fstl1) has beneficial actions on cardiac and endothelial function. However, the role of muscle-derived Fstl1 in proliferative vascular disease remains largely unknown. Here, we investigated whether muscle-derived Fstl1 modulates vascular remodelling in response to injury. METHODS AND RESULTS The targeted ablation of Fstl1 in muscle led to an increase in neointimal formation following wire-induced arterial injury compared with control mice. Conversely, muscle-specific Fstl1 transgenic (TG) mice displayed a decrease in the neointimal thickening following arterial injury. Muscle-specific Fstl1 ablation and overexpression increased and decreased, respectively, the frequency of BrdU-positive proliferating cells in injured vessels. In cultured human aortic smooth muscle cells (HASMCs), treatment with human FSTL1 protein decreased proliferation and migration induced by stimulation with PDGF-BB. Treatment with FSTL1 enhanced AMPK phosphorylation, and inhibition of AMPK abrogated the inhibitory actions of FSTL1 on HASMC responses to PDGF-BB. The injured arteries of Fstl1-TG mice exhibited an increase in AMPK phosphorylation, and administration of AMPK inhibitor reversed the anti-proliferative actions of Fstl1 on the vessel wall. CONCLUSION Our findings indicate that muscle-derived Fstl1 attenuates neointimal formation in response to arterial injury by suppressing SMC proliferation through an AMPK-dependent mechanism. Thus, the release of protein factors from muscle, such as Fstl1, may partly explain why the maintenance of muscle function can have a therapeutic effect on the cardiovascular system.
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Affiliation(s)
- Megumi Miyabe
- Department of Cardiology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Koji Ohashi
- Department of Molecular Cardiology, Nagoya University Graduate School of Medicine, 65 Tsurumaicho, Showa-ku, Nagoya 466-8550, Japan
| | - Rei Shibata
- Department of Cardiology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yusuke Uemura
- Department of Cardiology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yasuhiro Ogura
- Department of Cardiology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Daisuke Yuasa
- Department of Cardiology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Takahiro Kambara
- Department of Cardiology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yoshiyuki Kataoka
- Department of Cardiology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Takashi Yamamoto
- Department of Cardiology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Kazuhiro Matsuo
- Department of Cardiology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yusuke Joki
- Department of Cardiology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Takashi Enomoto
- Department of Cardiology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Satoko Hayakawa
- Department of Cardiology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Mizuho Hiramatsu-Ito
- Department of Cardiology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Masanori Ito
- Department of Cardiology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Maurice J B Van Den Hoff
- Department of Anatomy, Embryology & Physiology, Heart Failure Research Center, Academic Medical Center, Amsterdam, Netherlands
| | - Kenneth Walsh
- Department of Molecular Cardiology, Boston University School of Medicine, Boston, MA, USA
| | - Toyoaki Murohara
- Department of Cardiology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Noriyuki Ouchi
- Department of Molecular Cardiology, Nagoya University Graduate School of Medicine, 65 Tsurumaicho, Showa-ku, Nagoya 466-8550, Japan
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Yabluchanskiy A, Ma Y, Iyer RP, Hall ME, Lindsey ML. Matrix metalloproteinase-9: Many shades of function in cardiovascular disease. Physiology (Bethesda) 2014; 28:391-403. [PMID: 24186934 DOI: 10.1152/physiol.00029.2013] [Citation(s) in RCA: 331] [Impact Index Per Article: 33.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Matrix metalloproteinase (MMP)-9, one of the most widely investigated MMPs, regulates pathological remodeling processes that involve inflammation and fibrosis in cardiovascular disease. MMP-9 directly degrades extracellular matrix (ECM) proteins and activates cytokines and chemokines to regulate tissue remodeling. MMP-9 deletion or inhibition has proven overall beneficial in multiple animal models of cardiovascular disease. As such, MMP-9 expression and activity is a common end point measured. MMP-9 cell-specific overexpression, however, has also proven beneficial and highlights the fact that little information is available on the underlying mechanisms of MMP-9 function. In this review, we summarize our current understanding of MMP-9 physiology, including structure, regulation, activation, and downstream effects of increased MMP-9. We discuss MMP-9 roles during inflammation and fibrosis in cardiovascular disease. By concentrating on the substrates of MMP-9 and their roles in cardiovascular disease, we explore the overall function and discuss future directions on the translational potential of MMP-9 based therapies.
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231
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Sedgwick B, Riches K, Bageghni SA, O'Regan DJ, Porter KE, Turner NA. Investigating inherent functional differences between human cardiac fibroblasts cultured from nondiabetic and Type 2 diabetic donors. Cardiovasc Pathol 2014; 23:204-10. [PMID: 24746387 DOI: 10.1016/j.carpath.2014.03.004] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/17/2013] [Revised: 03/19/2014] [Accepted: 03/19/2014] [Indexed: 02/07/2023] Open
Abstract
INTRODUCTION Type 2 diabetes mellitus (T2DM) promotes adverse myocardial remodeling and increased risk of heart failure; effects that can occur independently of hypertension or coronary artery disease. As cardiac fibroblasts (CFs) are key effectors of myocardial remodeling, we investigated whether inherent phenotypic differences exist in CF derived from T2DM donors compared with cells from nondiabetic (ND) donors. METHODS Cell morphology (cell area), proliferation (cell counting over 7-day period), insulin signaling [phospho-Akt and phospho-extracellular signal-regulated kinase (ERK) Western blotting], and mRNA expression of key remodeling genes [real-time reverse transcription-polymerase chain reaction (RT-PCR)] were compared in CF cultured from atrial tissue from 14 ND and 12 T2DM donors undergoing elective coronary artery bypass surgery. RESULTS The major finding was that Type I collagen (COL1A1) mRNA levels were significantly elevated by twofold in cells derived from T2DM donors compared with those from ND donors; changes reflected at the protein level. T2DM cells had similar proliferation rates but a greater variation in cell size and a trend towards increased cell area compared with ND cells. Insulin-induced Akt and ERK phosphorylation were similar in the two cohorts of cells. CONCLUSION CF from T2DM individuals possess an inherent profibrotic phenotype that may help to explain the augmented cardiac fibrosis observed in diabetic patients. MINI SUMMARY We investigated whether inherent phenotypic differences exist between CF cultured from donors with or without Type 2 diabetes. Cell morphology, proliferation, insulin signaling, and gene expression were compared between multiple cell populations. The major finding was that Type I collagen levels were elevated in fibroblasts from diabetic donors, which may help explain the augmented cardiac fibrosis observed with diabetes.
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Affiliation(s)
- Bryony Sedgwick
- Division of Cardiovascular and Diabetes Research, School of Medicine, University of Leeds, Leeds, UK
| | - Kirsten Riches
- Division of Cardiovascular and Diabetes Research, School of Medicine, University of Leeds, Leeds, UK; Multidisciplinary Cardiovascular Research Centre (MCRC), University of Leeds, Leeds, UK
| | - Sumia A Bageghni
- Division of Cardiovascular and Diabetes Research, School of Medicine, University of Leeds, Leeds, UK; Multidisciplinary Cardiovascular Research Centre (MCRC), University of Leeds, Leeds, UK
| | - David J O'Regan
- Multidisciplinary Cardiovascular Research Centre (MCRC), University of Leeds, Leeds, UK; Department of Cardiac Surgery, The Yorkshire Heart Centre, Leeds General Infirmary, Leeds, UK
| | - Karen E Porter
- Division of Cardiovascular and Diabetes Research, School of Medicine, University of Leeds, Leeds, UK; Multidisciplinary Cardiovascular Research Centre (MCRC), University of Leeds, Leeds, UK
| | - Neil A Turner
- Division of Cardiovascular and Diabetes Research, School of Medicine, University of Leeds, Leeds, UK; Multidisciplinary Cardiovascular Research Centre (MCRC), University of Leeds, Leeds, UK.
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BMP-2 overexpression augments vascular smooth muscle cell motility by upregulating myosin Va via Erk signaling. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2014; 2014:294150. [PMID: 24790701 PMCID: PMC3980867 DOI: 10.1155/2014/294150] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/08/2013] [Revised: 10/11/2013] [Accepted: 12/05/2013] [Indexed: 11/17/2022]
Abstract
Background. The disruption of physiologic vascular smooth muscle cell (VSMC) migration initiates atherosclerosis development. The biochemical mechanisms leading to dysfunctional VSMC motility remain unknown. Recently, cytokine BMP-2 has been implicated in various vascular physiologic and pathologic processes. However, whether BMP-2 has any effect upon VSMC motility, or by what manner, has never been investigated. Methods. VSMCs were adenovirally transfected to genetically overexpress BMP-2. VSMC motility was detected by modified Boyden chamber assay, confocal time-lapse video assay, and a colony wounding assay. Gene chip array and RT-PCR were employed to identify genes potentially regulated by BMP-2. Western blot and real-time PCR detected the expression of myosin Va and the phosphorylation of extracellular signal-regulated kinases 1/2 (Erk1/2). Immunofluorescence analysis revealed myosin Va expression locale. Intracellular Ca2+ oscillations were recorded. Results. VSMC migration was augmented in VSMCs overexpressing BMP-2 in a dose-dependent manner. siRNA-mediated knockdown of myosin Va inhibited VSMC motility. Both myosin Va mRNA and protein expression significantly increased after BMP-2 administration and were inhibited by Erk1/2 inhibitor U0126. BMP-2 induced Ca2+ oscillations, generated largely by a “cytosolic oscillator”. Conclusion. BMP-2 significantly increased VSMCs migration and myosin Va expression, via the Erk signaling pathway and intracellular Ca2+ oscillations. We provide additional insight into the pathophysiology of atherosclerosis, and inhibition of BMP-2-induced myosin Va expression may represent a potential therapeutic strategy.
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Genetic score based on high-risk genetic polymorphisms and early onset of ischemic heart disease in an Italian cohort of ischemic patients. Thromb Res 2014; 133:804-10. [PMID: 24656450 DOI: 10.1016/j.thromres.2014.03.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2013] [Revised: 02/12/2014] [Accepted: 03/03/2014] [Indexed: 12/21/2022]
Abstract
Several single-nucleotide polymorphisms (SNPs) have been recognized as associated with ischemic heart disease (IHD) although the optimal set of risk genotypes has not be identified. This study aimed to examine whether identified high-risk SNPs are associated with early onset of IHD. In the GENOCOR study, 44 high-risk SNPs were genotyped in 114 patients with early onset of IHD (46.2 ± 5.1 years) and 384 patients with late onset of IHD (60.7 ± 5.9 years). The associations between individual SNPs and early onset IHD were assessed. A multilocus genetic risk score (GRS) for each associated risk genetic markers was constructed by summing the number of risk alleles. The SNPs significantly associated with IHD were: -482C>T of Apolipoprotein C III gene (ApoC3, p=0.02); 1171 5A>6A of Matrix metalloproteinase 3 stromelisine I gene (p=0.01); G98T of Selectin E gene (p=0.05); C/G of 9p21.3 locus (p=0.01). Likelihood ratio test showed a strong interaction for increasing risk of early IHD between the presence of ApoC3 and 9p21.3 locus with hypertriglyceridemia (p=0.0008, 0.0011) as well as between 9p21.3 locus and smoking (p=0.0010) after correction for multiple testing. The OR for premature IHD for GRS unit was 1.3 (95% CI 1.1-1.6, p=0.001). Patients in the top tertile of GRS were estimated to have a 3.2-fold (95% CI 1.5-6.8; p=0.001) increased risk of early IHD compared with those in the bottom tertile. The results show that currently identified high-risk SNPs confer an additive biomarker for cardiovascular events. GRS may provide important incremental information on the genetic component of IHD.
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234
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Tousoulis D, Psarros C, Demosthenous M, Patel R, Antoniades C, Stefanadis C. Innate and adaptive inflammation as a therapeutic target in vascular disease: the emerging role of statins. J Am Coll Cardiol 2014; 63:2491-2502. [PMID: 24613322 DOI: 10.1016/j.jacc.2014.01.054] [Citation(s) in RCA: 133] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2013] [Revised: 01/10/2014] [Accepted: 01/29/2014] [Indexed: 12/22/2022]
Abstract
Atherosclerosis, the main pathophysiological condition leading to cardiovascular disease (CVD), is now considered to be a chronic inflammatory condition. Statins are the most widely used and promising agents in treating CVD and are renowned for their pleiotropic lipid-lowering independent effects. Statins exert their anti-inflammatory effects on the vascular wall through a variety of molecular pathways of the innate and adaptive immune systems, their impact on the circulating levels of pro-inflammatory cytokines, and their effect on adhesion molecules. By inhibiting the mevalonate pathway and isoprenoid formation, statins account for the increase of nitric oxide bioavailability and the improvement of vascular and myocardial redox state by multiple different mechanisms (directly or indirectly through low-density lipoprotein [LDL] lowering). A large number of randomized control trials have shown that statins help in the primary and secondary prevention of cardiovascular events, not only via their lipid-lowering effect, but also due to their anti-inflammatory potential as well. In this paper, we examine the molecular pathways in which statins are implicated and exert their anti-inflammatory effects, and we focus specifically on their impact on innate and adaptive immunity systems. Finally, we review the most important clinical data for the role of statins in primary and secondary prevention of cardiovascular events.
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Affiliation(s)
- Dimitris Tousoulis
- First Cardiology Department, Athens University Medical School, Athens, Greece.
| | - Costas Psarros
- First Cardiology Department, Athens University Medical School, Athens, Greece
| | | | - Rikhil Patel
- Radcliffe Department of Medicine, Cardiovascular Medicine Division, University of Oxford, John Radcliffe Hospital, Oxford, United Kingdom
| | - Charalambos Antoniades
- First Cardiology Department, Athens University Medical School, Athens, Greece; Radcliffe Department of Medicine, Cardiovascular Medicine Division, University of Oxford, John Radcliffe Hospital, Oxford, United Kingdom
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235
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Shi YF, Chi JF, Tang WL, Xu FK, Liu LB, Ji Z, Lv HT, Guo HY. Effects of rosuvastatin on the production and activation of matrix metalloproteinase-2 and migration of cultured rat vascular smooth muscle cells induced by homocysteine. J Zhejiang Univ Sci B 2014; 14:696-704. [PMID: 23897788 DOI: 10.1631/jzus.bqicc703] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
OBJECTIVE To test the influence of homocysteine on the production and activation of matrix metalloproteinase-2 (MMP-2) and tissue inhibitors of matrix metalloproteinase-2 (TIMP-2) and on cell migration of cultured rat vascular smooth muscle cells (VSMCs). Also, to explore whether rosuvastatin can alter the abnormal secretion and activation of MMP-2 and TIMP-2 and migration of VSMCs induced by homocysteine. METHODS Rat VSMCs were incubated with different concentrations of homocysteine (50-5000 μmol/L). Western blotting and gelatin zymography were used to investigate the expressions and activities of MMP-2 and TIMP-2 in VSMCs in culture medium when induced with homocysteine for 24, 48, and 72 h. Transwell chambers were employed to test the migratory ability of VSMCs when incubated with homocysteine for 48 h. Different concentrations of rosuvastatin (10(-9)-10(-5) mol/L) were added when VSMCs were induced with 1000 μmol/L homocysteine. The expressions and activities of MMP-2 and TIMP-2 were examined after incubating for 24, 48, and 72 h, and the migration of VSMCs was also examined after incubating for 48 h. RESULTS Homocysteine (50-1000 μmol/L) increased the production and activation of MMP-2 and expression of TIMP-2 in a dose-dependent manner. However, when incubated with 5000 μmol/L homocysteine, the expression of MMP-2 was up-regulated, but its activity was down-regulated. Increased homocysteine-induced production and activation of MMP-2 were reduced by rosuvastatin in a dose-dependent manner whereas secretion of TIMP-2 was not significantly altered by rosuvastatin. Homocysteine (50-5000 μmol/L) stimulated the migration of VSMCs in a dose-dependent manner, but this effect was eliminated by rosuvastatin. CONCLUSIONS Homocysteine (50-1000 μmol/L) significantly increased the production and activation of MMP-2, the expression of TIMP-2, and the migration of VSMCs in a dose-dependent manner. Additional extracellular rosuvastatin can decrease the excessive expression and activation of MMP-2 and abnormal migration of VSMCs induced by homocysteine.
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Affiliation(s)
- Ya-fei Shi
- Department of Cardiology, Shaoxing People's Hospital, Shaoxing Hospital of Zhejiang University, Shaoxing 312000, China
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236
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Kataoka H, Aoki T. Molecular basis for the development of intracranial aneurysm. Expert Rev Neurother 2014. [DOI: 10.1586/ern.09.155] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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237
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Penn DL, Witte SR, Komotar RJ, Sander Connolly E. The role of vascular remodeling and inflammation in the pathogenesis of intracranial aneurysms. J Clin Neurosci 2014; 21:28-32. [DOI: 10.1016/j.jocn.2013.07.004] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2013] [Accepted: 07/12/2013] [Indexed: 12/26/2022]
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238
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Bayoglu B, Arslan C, Gode S, Kaya Dagistanli F, Arapi B, Burc Deser S, Dirican A, Cengiz M. The Severity of Internal Carotid Artery Stenosis is Associated with the Cyclin-Dependent Kinase Inhibitor 2A Gene Expression. J Atheroscler Thromb 2014; 21:659-71. [DOI: 10.5551/jat.21774] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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239
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Kormi I, Alfakry H, Tervahartiala T, Pussinen PJ, Sinisalo J, Sorsa T. The effect of prolonged systemic doxycycline therapy on serum tissue degrading proteinases in coronary bypass patients: a randomized, double-masked, placebo-controlled clinical trial. Inflamm Res 2013; 63:329-34. [PMID: 24378958 DOI: 10.1007/s00011-013-0704-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2013] [Revised: 09/10/2013] [Accepted: 11/25/2013] [Indexed: 11/24/2022] Open
Abstract
OBJECTIVE Serum matrix metalloproteinases (MMP-8, MMP-7) and their regulators may be associated with the risk of incident cardiovascular disease events. Doxycycline can be used as matrix metalloproteinase (MMP) inhibitor independent of its antimicrobial activity. We aimed to investigate serum inflammatory biomarkers during 4 months of doxycycline therapy in coronary bypass patients. MATERIALS AND METHODS Thirty-one non-smoking men who had previous coronary bypass surgery were randomly assigned to receive placebo or 100 mg doxycycline daily for 4 months. Serum samples were collected at baseline before the treatment, and at 2, 4, and 10 months. Serum levels of MMP-7, tissue inhibitor of matrix metalloproteinase (TIMP)-1, myeloperoxidase, and neutrophil elastase were analyzed with enzyme-linked immunosorbent assay, MMP-8 by immunofluorometric assay, and C-reactive protein by rate nephelometry. RESULTS At baseline, no significant differences existed between the two groups. Serum levels of MMP-8, MMP-7, and MMP-8/TIMP-1 were and remained lower (p = 0.034, p = 0.041, and NS) in the doxycycline group relative to the placebo group at 4 months of follow-up. CONCLUSIONS Doxycycline decreases the systemic inflammatory burden in patients with myocardial infarction and especially down-regulates MMP-7, MMP-8, and MMP-8/TIMP-1. Doxycycline might prevent or reduce the risk of secondary myocardial infarctions by providing a systemic anti-proteolytic and -inflammatory shield.
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Affiliation(s)
- Immi Kormi
- Oral and Maxillofacial Department, Oulu University Hospital, Oulu, Finland
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240
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Lund AK, Doyle-Eisele M, Lin YH, Arashiro M, Surratt JD, Holmes T, Schilling KA, Seinfeld JH, Rohr AC, Knipping EM, McDonald JD. The effects of α-pinene versus toluene-derived secondary organic aerosol exposure on the expression of markers associated with vascular disease. Inhal Toxicol 2013; 25:309-24. [PMID: 23742109 DOI: 10.3109/08958378.2013.782080] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
To investigate the toxicological effects of biogenic- versus anthropogenic-source secondary organic aerosol (SOA) on the cardiovascular system, the Secondary Particulate Health Effects Research program irradiation chamber was used to expose atherosclerotic apolipoprotein E null (Apo E-/-) mice to SOA from the oxidation of either α-pinene or toluene for 7 days. SOA atmospheres were produced to yield 250-300 μg/m(3) of particulate matter and ratios of 10:1:1 α-pinene:nitrogen oxide (NOx):ammonia (NH3); 10:1:1:1 α-pinene:NOx:NH3:sulfur dioxide (SO2) or 10:1:1 toluene:NOx:NH3; and 10:1:1:1 toluene:NOx:NH3:SO2. Resulting effects on the cardiovascular system were assessed by measurement of vascular lipid peroxidation (thiobarbituric acid reactive substance (TBARS)), as well as quantification of heme-oxygenase (HO)-1, endothelin (ET)-1, and matrix metalloproteinase (MMP)-9 mRNA expression for comparison to previous program exposure results. Consistent with similar previous studies, vascular TBARS were not increased significantly with any acute SOA exposure. However, vascular HO-1, MMP-9, and ET-1 observed in Apo E-/- mice exposed to α-pinene + NOx + NH3 + SO2 increased statistically, while α-pinene + NOx + NH3 exposure to either toluene + NOx + NH3 or toluene +NOx + NH3 + SO2 resulted in a decreased expression of these vascular factors. Such findings suggest that the specific chemistry created by the presence or absence of acidic components may be important in SOA-mediated toxicity in the cardiovascular system and/or progression of cardiovascular disease.
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Affiliation(s)
- Amie K Lund
- Lovelace Respiratory Research Institute , Albuquerque, NM 87108, USA
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241
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Lei-xing X, Jing-jing G, Jing-xue N, Juan W, Juan L, Chang-zai L, Xiao-xi W, Da-yi Y, Jia-jin L, Xiong-wei Z, Liu-quan C, Yong W, Dan-qing L, Hong-bin L. Combined application of 18F-fluorodeoxyglucose positron emission tomography/computed tomography and magnetic resonance imaging in early diagnosis of vulnerable carotid atherosclerotic plaques. J Int Med Res 2013; 42:213-23. [PMID: 24366494 DOI: 10.1177/0300060513502887] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Objective To assess the correlations between atherosclerotic plaque characteristics and inflammatory activity by combined use of 18F-fluorodeoxyglucose (18F-FDG) positron emission tomography/computed tomography (PET/CT) and magnetic resonance imaging (MRI). Methods Patients underwent 18F-FDG PET/CT and MRI. Target/background ratios (TBR) of axial sections were determined from mean standard uptake values (SUV). Correlations between TBR and mean vessel wall thickness, total vessel area, lumen area, vessel wall area and normalized wall index were calculated. Plaque types were defined as calcified, collagen, lipid or haemorrhage. Plaques were also classified as thick, thin, or ruptured fibrous cap. Results The study included 31 patients (1178 plaque slices). There was a significant decrease in TBR values across the fibrous cap groups, such that ruptured > thin > thick. Lipid and haemorrhage plaques had significantly higher TBR than calcification and collagen plaques. There were weak positive correlations between TBR and mean vessel wall thickness, vessel wall area and normalized wall index. Conclusions Thin or ruptured plaques, lipid-rich plaques and haemorrhagic plaques possess high inflammatory activity. The combination of 18F-FDG PET/CT and MRI could be useful for qualitative and quantitative diagnosis of carotid atherosclerotic plaques.
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Affiliation(s)
- Xie Lei-xing
- Department of Cardiology, Chinese People’s Liberation Army General Hospital, Beijing, China
- Department of Cardiology, Hainan Branch of Chinese PLA General Hospital, Sanya, China
| | - Gai Jing-jing
- Department of Cardiology, Chinese People’s Liberation Army General Hospital, Beijing, China
| | - Niu Jing-xue
- Department of Neurorehabilitation, China Rehabilitation Research Centre, Beijing, China
| | - Wang Juan
- Department of Cardiology, Chinese People’s Liberation Army General Hospital, Beijing, China
| | - Li Juan
- Department of Cardiology, Chinese People’s Liberation Army General Hospital, Beijing, China
| | - Liang Chang-zai
- Department of Cardiology, Chinese People’s Liberation Army General Hospital, Beijing, China
| | - Wang Xiao-xi
- Department of Cardiology, Chinese People’s Liberation Army General Hospital, Beijing, China
| | - Yin Da-yi
- Department of Nuclear Medicine, Chinese People’s Liberation Army General Hospital, Beijing, China
| | - Liu Jia-jin
- Department of Nuclear Medicine, Chinese People’s Liberation Army General Hospital, Beijing, China
| | - Zhang Xiong-wei
- Department of Nuclear Medicine, Chinese People’s Liberation Army General Hospital, Beijing, China
| | - Cheng Liu-quan
- Department of Radiology, Chinese People’s Liberation Army General Hospital, Beijing, China
| | - Wang Yong
- Department of Radiology, Chinese People’s Liberation Army General Hospital, Beijing, China
| | - Liu Dan-qing
- Department of Radiology, Chinese People’s Liberation Army General Hospital, Beijing, China
| | - Liu Hong-bin
- Department of Cardiology, Chinese People’s Liberation Army General Hospital, Beijing, China
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Ni J, Ma X, Zhou M, Pan X, Tang J, Hao Y, Lu Z, Gao M, Bao Y, Jia W. Serum lipocalin-2 levels positively correlate with coronary artery disease and metabolic syndrome. Cardiovasc Diabetol 2013; 12:176. [PMID: 24359145 PMCID: PMC3878105 DOI: 10.1186/1475-2840-12-176] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2013] [Accepted: 12/17/2013] [Indexed: 11/26/2022] Open
Abstract
Background The lipocalin-2 (LCN2) cytokine, primarily known as a protein of the granules of human neutrophils, has been recently reported to be implicated in metabolic and inflammatory disorders. This study was designed to evaluate the relationship between serum LCN2 levels and coronary artery disease (CAD). Methods Serum LCN2 levels of 261 in-patients who underwent coronary angiography were measured by sandwich enzyme immunoassay. Demographic (169 men and 92 postmenopausal women) and clinical (metabolic syndrome (MS), triglyceride (TG) and C-reactive protein (CRP) levels) characteristics were collected to assess independent factors of CAD (CAD: 188 and non-CAD: 73) and serum LCN2 levels by multiple logistic regression and multivariate stepwise regression analyses, respectively. Results Serum LCN2 levels were significantly higher in men (37.5 (27.4-55.4) vs. women: 28.2 (18.7-45.9) ng/mL, p < 0.01) and men with CAD (39.2 (29.3-56.5) vs. non-CAD men: 32.7 (20.5-49.7) ng/mL, p < 0.05), and showed significant positive correlation with CAD in men (odds ratio = 2.218, 95% confidence interval: 1.017-4.839). Similarly, serum LCN2 levels were significantly higher in men with MS (40.2 (31.9-59.4) vs. non-MS: 32.0 (21.7-47.6) ng/mL, p < 0.01) and showed a significant positive correlation with the number of MS components (p for trend < 0.05). No significant differences or correlations were seen in women. TG and neutrophils (standard β = 0.238 and 0.173) were independent factors of serum LCN2 levels in men, and only neutrophils (standard β = 0.286) affected levels in women (all p < 0.05). Conclusions Increased serum LCN2 levels are positively correlated with the presence of CAD and MS in a Chinese cohort.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Yuqian Bao
- Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Clinical Center for Diabetes, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Diabetes Institute, 600 Yishan Road, Shanghai, 200233, China.
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243
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Inflammation and atherosclerosis: disease modulating therapies. CURRENT TREATMENT OPTIONS IN CARDIOVASCULAR MEDICINE 2013; 15:681-95. [PMID: 23979859 DOI: 10.1007/s11936-013-0268-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
OPINION STATEMENT Advances in the mechanistic understanding of atheroma initiation, repair, progression, and rupture have solidified the pivotal role played by the immune system in the pathophysiology of atherosclerotic vascular disease. These mechanistic findings have been extended into humans, with a strong evidence basis for the independent association between elevated blood markers of inflammation and future cardiovascular (CV) events. Investigations with statins as well as more conventional anti-inflammatory medications provide indirect evidence to support the concept that modifying immune responses can improve CV outcomes; however, robust evidence to support the use of anti-inflammatory treatment strategies to manage atherosclerotic vascular disease is still lacking. Such evidence may emerge from a new wave of clinical trials directly exploring the effects of targeted immune modulation on CV risk. These trials will provide key additional insights into atherosclerosis and will help determine the fate of immune modulation as a new treatment strategy in atherosclerotic vascular disease.
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244
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Variations in matrix metalloproteinase-1, -3, and -9 genes and the risk of acute coronary syndrome and coronary artery disease in the Chinese Han population. Coron Artery Dis 2013; 24:259-65. [PMID: 23377317 DOI: 10.1097/mca.0b013e32835ea3af] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVES Matrix metalloproteinases (MMPs) are a group of endopeptidases involved in the pathogenesis of atherosclerosis, and MMP gene polymorphisms may contribute toward the risk of coronary heart disease. Within this context, our aim was to examine whether MMP1, MMP3, and MMP9 gene polymorphisms are associated with susceptibility to acute coronary syndrome (ACS) or angiographic coronary artery disease (CAD). METHODS The MMP1 -519 A/G, MMP3 -1171 5A/6A, and MMP9 -1562 C/T polymorphisms were evaluated in 1574 individuals. Genotypes of patients with ACS (n=660) and angiographically defined CAD (n=382) were compared with ACS-free (n=914) and non-CAD controls (n=466). RESULTS The MMP3 5A allele occurred at a higher frequency in patients with ACS than in ACS-free individuals (P=0.001). Logistic regression analysis showed that the 5A/5A genotype of MMP3 was associated with a significantly increased risk of ACS [adjusted odds ratio (OR)=2.297, 95% confidence interval (CI)=1.105-4.775, P=0.026, 5A/5A vs. 6A/6A]. The CT and TT variant genotypes of MMP9 were associated with the occurrence of CAD (adjusted OR=1.425, 95% CI=1.045-1.943, P=0.025, CT+TT vs. CC). None of the MMP1 -519 A/G polymorphisms was associated with ACS or CAD. Because of linkage disequilibrium, MMP1 and MMP3 polymorphisms were combined on chromosome 11q22.3, and the 5A-1171-G-519 haplotype had a genetic risk factor for ACS (OR=1.505, 95% CI=1.219-1.857, P=0.00013), whereas the 6A-1171-G-519 haplotype had a decreased risk of ACS (OR=0.815, 95% CI=0.677-0.981, P=0.03). CONCLUSION Taken together, the present findings indicate that genetic variations in MMP3 and MMP9 genes may be useful genetic markers for determining susceptibility to CAD in the Chinese Han population.
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245
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Ma Y, Yabluchanskiy A, Hall ME, Lindsey ML. Using plasma matrix metalloproteinase-9 and monocyte chemoattractant protein-1 to predict future cardiovascular events in subjects with carotid atherosclerosis. Atherosclerosis 2013; 232:231-3. [PMID: 24401244 DOI: 10.1016/j.atherosclerosis.2013.09.013] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2013] [Accepted: 09/19/2013] [Indexed: 11/30/2022]
Affiliation(s)
- Yonggang Ma
- San Antonio Cardiovascular Proteomics Center and Jackson Center for Heart Research, Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, MS, USA
| | - Andriy Yabluchanskiy
- San Antonio Cardiovascular Proteomics Center and Jackson Center for Heart Research, Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, MS, USA
| | - Michael E Hall
- San Antonio Cardiovascular Proteomics Center and Jackson Center for Heart Research, Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, MS, USA; Cardiology Division, University of Mississippi Medical Center, Jackson, MS, USA
| | - Merry L Lindsey
- San Antonio Cardiovascular Proteomics Center and Jackson Center for Heart Research, Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, MS, USA; Cardiology Division, University of Mississippi Medical Center, Jackson, MS, USA; Research and Medicine Services, G.V. (Sonny) Montgomery Veterans Affairs Medical Center, Jackson, MS, USA.
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246
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Ärnlöv J, Ruge T, Ingelsson E, Larsson A, Sundström J, Lind L. Serum endostatin and risk of mortality in the elderly: findings from 2 community-based cohorts. Arterioscler Thromb Vasc Biol 2013; 33:2689-95. [PMID: 24030549 DOI: 10.1161/atvbaha.113.301704] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
OBJECTIVE Experimental data imply that endostatin, a proteolytically cleaved fragment of collagen XVIII, could be involved in the development of cardiovascular disease and cancer. Prospective data concerning the relation between circulating endostatin and mortality are lacking. Accordingly, we aimed to study associations between circulating endostatin and mortality risk. APPROACH AND RESULTS Serum endostatin was analyzed in 2 community-based cohorts: the Prospective Investigation of the Vasculature in Uppsala Seniors (PIVUS; women 50%, n=931; mean age, 70 years; median follow-up, 7.9 years) and the Uppsala Longitudinal Study of Adult Men (ULSAM; n=748; mean age, 77 years; median follow-up, 9.7 years). During follow-up, 90 participants died in PIVUS (1.28/100 person-years at risk), and 417 participants died in ULSAM (6.7/100 person-years at risk). In multivariable Cox regression models adjusted for age and established cardiovascular risk factors, 1 SD higher ln(serum endostatin level) was associated with a hazard ratio of mortality of 1.39 and 95% confidence interval, 1.26 to 1.53, on average in both cohorts. In the ULSAM cohort, serum endostatin was also associated with cardiovascular mortality (177 deaths; hazard ratio per SD of ln[endostatin] 1.45, 95% confidence interval [1.25-1.71]) and cancer mortality (115 deaths; hazard ratio per SD of ln[endostatin] 1.35, 95% confidence interval [1.10-1.66]). CONCLUSIONS High serum endostatin was associated with increased mortality risk in 2 independent community-based cohorts of the elderly. Our observational data support the importance of extracellular matrix remodeling in the underlying pathophysiology of cardiovascular disease and cancer.
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Affiliation(s)
- Johan Ärnlöv
- From the Department of Public Health and Caring Sciences/Section of Geriatrics (J.Ä.), Department of Medical Sciences, Molecular Epidemiology and Science for Life Laboratory, Uppsala University, Uppsala, Sweden (E.I., J.Ä.); Department of Medical Sciences, Uppsala University, Uppsala, Sweden (A.L., J.S., L.L.); School of Health and Social Studies, Dalarna University, Falun, Sweden (J.Ä.); and Department of Surgery, Umea University, Umea, Sweden (T.R.)
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Metalloproteases meprin α and meprin β are C- and N-procollagen proteinases important for collagen assembly and tensile strength. Proc Natl Acad Sci U S A 2013; 110:14219-24. [PMID: 23940311 DOI: 10.1073/pnas.1305464110] [Citation(s) in RCA: 94] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Type I fibrillar collagen is the most abundant protein in the human body, crucial for the formation and strength of bones, skin, and tendon. Proteolytic enzymes are essential for initiation of the assembly of collagen fibrils by cleaving off the propeptides. We report that Mep1a(-/-) and Mep1b(-/-) mice revealed lower amounts of mature collagen I compared with WT mice and exhibited significantly reduced collagen deposition in skin, along with markedly decreased tissue tensile strength. While exploring the mechanism of this phenotype, we found that cleavage of full-length human procollagen I heterotrimers by either meprin α or meprin β led to the generation of mature collagen molecules that spontaneously assembled into collagen fibrils. Thus, meprin α and meprin β are unique in their ability to process and release both C- and N-propeptides from type I procollagen in vitro and in vivo and contribute to the integrity of connective tissue in skin, with consequent implications for inherited connective tissue disorders.
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248
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Seo KW, Lee SJ, Kim YH, Bae JU, Park SY, Bae SS, Kim CD. Mechanical stretch increases MMP-2 production in vascular smooth muscle cells via activation of PDGFR-β/Akt signaling pathway. PLoS One 2013; 8:e70437. [PMID: 23950935 PMCID: PMC3737227 DOI: 10.1371/journal.pone.0070437] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2013] [Accepted: 06/18/2013] [Indexed: 12/21/2022] Open
Abstract
Increased blood pressure, leading to mechanical stress on vascular smooth muscle cells (VSMC), is a known risk factor for vascular remodeling via increased activity of matrix metalloproteinase (MMP) within the vascular wall. This study aimed to identify cell surface mechanoreceptors and intracellular signaling pathways that influence VSMC to produce MMP in response to mechanical stretch (MS). When VSMC was stimulated with MS (0–10% strain, 60 cycles/min), both production and gelatinolytic activity of MMP-2, but not MMP-9, were increased in a force-dependent manner. MS-enhanced MMP-2 expression and activity were inhibited by molecular inhibition of Akt using Akt siRNA as well as by PI3K/Akt inhibitors, LY293002 and AI, but not by MAPK inhibitors such as PD98059, SP600125 and SB203580. MS also increased Akt phosphorylation in VSMC, which was attenuated by AG1295, a PDGF receptor (PDGFR) inhibitor, but not by inhibitors for other receptor tyrosine kinase including EGF, IGF, and FGF receptors. Although MS activated PDGFR-α as well as PDGFR-β in VSMC, MS-induced Akt phosphorylation was inhibited by molecular deletion of PDGFR-β using siRNA, but not by inhibition of PDGFR-α. Collectively, our data indicate that MS induces MMP-2 production in VSMC via activation of Akt pathway, that is mediated by activation of PDGFR-β signaling pathways.
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MESH Headings
- Animals
- Cells, Cultured
- Gene Expression
- Immunoblotting
- Immunohistochemistry
- Matrix Metalloproteinase 2/genetics
- Matrix Metalloproteinase 2/metabolism
- Microscopy, Confocal
- Muscle, Smooth, Vascular/cytology
- Muscle, Smooth, Vascular/metabolism
- Myocytes, Smooth Muscle/cytology
- Myocytes, Smooth Muscle/metabolism
- Phosphorylation
- Proto-Oncogene Proteins c-akt/antagonists & inhibitors
- Proto-Oncogene Proteins c-akt/genetics
- Proto-Oncogene Proteins c-akt/metabolism
- RNA Interference
- Rats
- Rats, Sprague-Dawley
- Reactive Oxygen Species/metabolism
- Receptor, Platelet-Derived Growth Factor beta/antagonists & inhibitors
- Receptor, Platelet-Derived Growth Factor beta/genetics
- Receptor, Platelet-Derived Growth Factor beta/metabolism
- Reverse Transcriptase Polymerase Chain Reaction
- Signal Transduction
- Stress, Mechanical
- Tyrphostins/pharmacology
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Affiliation(s)
- Kyo Won Seo
- Department of Pharmacology, School of Medicine, and Medical Research Center for Ischemic Tissue Regeneration, Pusan National University, Yangsan, Gyeongnam, Republic of Korea
| | - Seung Jin Lee
- Department of Pharmacology, School of Medicine, and Medical Research Center for Ischemic Tissue Regeneration, Pusan National University, Yangsan, Gyeongnam, Republic of Korea
| | - Yun Hak Kim
- Department of Pharmacology, School of Medicine, and Medical Research Center for Ischemic Tissue Regeneration, Pusan National University, Yangsan, Gyeongnam, Republic of Korea
| | - Jin Ung Bae
- Department of Pharmacology, School of Medicine, and Medical Research Center for Ischemic Tissue Regeneration, Pusan National University, Yangsan, Gyeongnam, Republic of Korea
| | - So Youn Park
- Department of Pharmacology, School of Medicine, and Medical Research Center for Ischemic Tissue Regeneration, Pusan National University, Yangsan, Gyeongnam, Republic of Korea
| | - Sun Sik Bae
- Department of Pharmacology, School of Medicine, and Medical Research Center for Ischemic Tissue Regeneration, Pusan National University, Yangsan, Gyeongnam, Republic of Korea
| | - Chi Dae Kim
- Department of Pharmacology, School of Medicine, and Medical Research Center for Ischemic Tissue Regeneration, Pusan National University, Yangsan, Gyeongnam, Republic of Korea
- * E-mail:
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249
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Hsu TW, Kuo KL, Hung SC, Huang PH, Chen JW, Tarng DC. Progression of kidney disease in non-diabetic patients with coronary artery disease: predictive role of circulating matrix metalloproteinase-2, -3, and -9. PLoS One 2013; 8:e70132. [PMID: 23922934 PMCID: PMC3724836 DOI: 10.1371/journal.pone.0070132] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2013] [Accepted: 06/16/2013] [Indexed: 12/03/2022] Open
Abstract
Background Circulating matrix metalloproteinase (MMP)-2, -3 and -9 are well recognized in predicting cardiovascular outcome in coronary artery disease (CAD), but their risks for chronic kidney disease (CKD) are lacking. Therefore, the present study aimed to investigate whether circulating MMP levels could independently predict future kidney disease progression in non-diabetic CAD patients. Methods The prospective study enrolled 251 non-diabetic subjects referred for coronary angiography, containing normal coronary artery (n = 30) and CAD with insignificant (n = 95) and significant (n = 126) stenosis. Estimated glomerular filtration rate (eGFR) was calculated using the CKD-EPI formula. eGFR decline rate was calculated and the primary endpoint was a decline in eGFR over 25% from baseline. Results The eGFR decline rate (ml/min/1.73 m2 per year) in patients with CAD (1.22 [−1.27, 1.05]) was greater than that in those with normal coronary artery (0.21 [−2.63, 0.47], P<0.01). The circulating MMP-2, -3 and -9 were independently associated with faster eGFR decline among CAD patients. The mean follow-up period was 8.5±2.4 years, and 39 patients reached the primary endpoint. In multivariate Cox regression model, the adjusted hazard ratios of MMP-2 ≥861 ng/mL, MMP-3 ≥227 ng/mL and MMP-9 ≥49 ng/mL for predicting CKD progression were 2.47 (95% CI, 1.21 to 5.07), 2.15 (1.12 to 4.18), and 4.71 (2.14 to 10.4), respectively. While added to a model of conventional risk factors and baseline eGFR, MMP-2, -3 and -9 further significantly improved the model predictability for CKD progression (c statistic, 0.817). In the sensitivity analyses, the results were similar no matter if we changed the endpoints of a decline of >20% in eGFR from baseline or final eGFR < 60 mL/min/1.73 m2. Conclusion Circulating MMP-2, -3 and -9 are independently associated with kidney disease progression in non-diabetic CAD patients and add incremental predictive power to conventional risk factors.
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Affiliation(s)
- Ta-Wei Hsu
- Division of Nephrology, National Yang-Ming University Hospital, Yilan, Taiwan
| | - Ko-Lin Kuo
- Division of Nephrology, Buddhist Tzu Chi Hospital Taipei Branch, Taipei, Taiwan
| | - Szu-Chun Hung
- Division of Nephrology, Buddhist Tzu Chi Hospital Taipei Branch, Taipei, Taiwan
| | - Po-Hsun Huang
- Division of Cardiology, Taipei Veterans General Hospital, Taipei, Taiwan
- Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Jaw-Wen Chen
- Division of Cardiology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Der-Cherng Tarng
- Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan
- Division of Nephrology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
- Department and Institute of Physiology, National Yang-Ming University, Taipei, Taiwan
- * E-mail:
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250
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Wu HD, Bai X, Chen DM, Cao HY, Qin L. Association of genetic polymorphisms in matrix metalloproteinase-9 and coronary artery disease in the Chinese Han population: a case-control study. Genet Test Mol Biomarkers 2013; 17:707-12. [PMID: 23819814 DOI: 10.1089/gtmb.2013.0109] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
OBJECTIVE Matrix metalloproteinase-9 (MMP-9) plays an important role in inflammation and matrix degradation involved in atherosclerosis and plaque rupture. The T allele of rs3918242 has been reported to lead to a high promoter activity and associate with the extent of coronary artery disease (CAD). And some studies have reported that the G allele of rs17576 might be associated with CAD. The aim of this study was to assess the association between the polymorphisms of the MMP-9 gene and CAD in the Chinese Han population. METHODS This case-control study comprised 258 CAD cases and 153 controls from the Chinese Han Population. The genomic DNA of MMP-9 was isolated from whole blood. Polymerase chain reaction-based restriction fragment length polymorphism was used to determine the rs3918242 and rs17576 genotypes in the MMP-9 gene and the total serum levels of MMP-9 were measured using enzyme-linked immunosorbent assay in both case and control groups. RESULTS Analysis of MMP-9 gene polymorphisms showed that the frequencies of the T allele and CT+TT genotypes of rs3918242 were significantly higher in the case group than in the control group (p<0.05). However, the distribution of variant genotypes of rs17576 did not differ between the case and control groups (p>0.05). The total serum level of MMP-9 was significantly higher in the case group than in the control group (p<0.05). The subjects carrying T alleles in the CAD group had higher average serum MMP-9 levels compared with CC genotypes (p<0.05). CONCLUSIONS Our results suggest that the single-nucleotide polymorphism of rs3918242 in the MMP-9 gene is associated with CAD and high serum levels of MMP-9 are also associated with CAD in the Chinese Han population. Therefore, genetic variation of rs3918242 may participate in the development of CAD through influencing MMP-9 expression.
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Affiliation(s)
- Hai-di Wu
- Department of Cardiology, First Hospital, Jilin University, Changchun, China
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