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Lozano Í, Bangueses R, Rodríguez I, Pevida M, Rodríguez-Aguilar R, Rodríguez D, Espasandín-Arias M, Llames S, Meana Á, Suárez A, Rodríguez-Carrio J. In-stent restenosis is associated with proliferative skin healing and specific immune and endothelial cell profiles: results from the RACHEL trial. Front Immunol 2023; 14:1138247. [PMID: 37325628 PMCID: PMC10265483 DOI: 10.3389/fimmu.2023.1138247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Accepted: 05/22/2023] [Indexed: 06/17/2023] Open
Abstract
Introduction In-stent restenosis (ISR) is a major challenge in interventional cardiology. Both ISR and excessive skin healing are aberrant hyperplasic responses, which may be functionally related. However, the cellular component underlying ISR remains unclear, especially regarding vascular homeostasis. Recent evidence suggest that novel immune cell populations may be involved in vascular repair and damage, but their role in ISR has not been explored. The aims of this study is to analyze (i) the association between ISR and skin healing outcomes, and (ii) the alterations in vascular homeostasis mediators in ISR in univariate and integrative analyses. Methods 30 patients with ≥1 previous stent implantation with restenosis and 30 patients with ≥1 stent without restenosis both confirmed in a second angiogram were recruited. Cellular mediators were quantified in peripheral blood by flow cytometry. Skin healing outcomes were analyzed after two consecutive biopsies. Results Hypertrophic skin healing was more frequent in ISR patients (36.7%) compared to those ISR-free (16.7%). Patients with ISR were more likely to develop hypertrophic skin healing patterns (OR 4.334 [95% CI 1.044-18.073], p=0.033), even after correcting for confounders. ISR was associated with decreased circulating angiogenic T-cells (p=0.005) and endothelial progenitor cells (p<0.001), whereas CD4+CD28null and detached endothelial cells counts were higher (p<0.0001 and p=0.006, respectively) compared to their ISR-free counterparts. No differences in the frequency of monocyte subsets were found, although Angiotensin-Converting Enzyme expression was increased (non-classical: p<0.001; and intermediate: p<0.0001) in ISR. Despite no differences were noted in Low-Density Granulocytes, a relative increase in the CD16- compartment was observed in ISR (p=0.004). An unsupervised cluster analysis revealed the presence of three profiles with different clinical severity, unrelated to stent types or traditional risk factors. Conclusion ISR is linked to excessive skin healing and profound alterations in cellular populations related to vascular repair and endothelial damage. Distinct cellular profiles can be distinguished within ISR, suggesting that different alterations may uncover different ISR clinical phenotypes.
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Affiliation(s)
- Íñigo Lozano
- Department of Cardiology, Hospital Universitario Cabueñes, Gijón, Asturias, Spain
- Cardiac Pathology Research Group, Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Oviedo, Asturias, Spain
| | - Roi Bangueses
- Department of Cardiology, Hospital Universitario Cabueñes, Gijón, Asturias, Spain
| | - Isabel Rodríguez
- Cardiac Pathology Research Group, Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Oviedo, Asturias, Spain
| | - Marta Pevida
- Blood Tansfusion Center and Tissue Bank of Asturias, Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Oviedo, Asturias, Spain
- Grupo de Investigación en Oftalmología, Ciencias de la Visión y Terapias Avanzadas (GOVITA), Instituto de Salud del Principado de Asturias (ISPA), Oviedo, Asturias, Spain
- Instituto Universitario Fernández-Vega, Fundación de Investigación Oftalmológica, Oviedo, Asturias, Spain
| | - Raúl Rodríguez-Aguilar
- Department of Pathology Anatomy, Hospital Universitario Cabueñes, Gijón, Asturias, Spain
| | - Diana Rodríguez
- Department of Pathology Anatomy, Hospital Universitario Cabueñes, Gijón, Asturias, Spain
| | | | - Sara Llames
- Blood Tansfusion Center and Tissue Bank of Asturias, Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Oviedo, Asturias, Spain
- Grupo de Investigación en Oftalmología, Ciencias de la Visión y Terapias Avanzadas (GOVITA), Instituto de Salud del Principado de Asturias (ISPA), Oviedo, Asturias, Spain
- Centro de Investigación Biomédica en Red en Enfermedades Raras (CIBERER), Instituto de Salud Carlos III, Madrid, Spain
- Fundación Jiménez Díaz, Madrid, Spain
| | - Álvaro Meana
- Blood Tansfusion Center and Tissue Bank of Asturias, Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Oviedo, Asturias, Spain
- Grupo de Investigación en Oftalmología, Ciencias de la Visión y Terapias Avanzadas (GOVITA), Instituto de Salud del Principado de Asturias (ISPA), Oviedo, Asturias, Spain
- Instituto Universitario Fernández-Vega, Fundación de Investigación Oftalmológica, Oviedo, Asturias, Spain
| | - Ana Suárez
- Area of Immunology, Department of Functional Biology, University of Oviedo, Oviedo, Asturias, Spain
- Grupo de Investigación Básica y Traslacional en Enfermedades Inflamatorias, Instituto de Investigación Sanitaria del Principado de Asturias, Oviedo, Asturias, Spain
| | - Javier Rodríguez-Carrio
- Area of Immunology, Department of Functional Biology, University of Oviedo, Oviedo, Asturias, Spain
- Grupo de Investigación Básica y Traslacional en Enfermedades Inflamatorias, Instituto de Investigación Sanitaria del Principado de Asturias, Oviedo, Asturias, Spain
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Lv F, Jiang Y, Wang Y, Zhang T, Zhou Y. AGTR1rs5186 Polymorphism Is Associated with the Risk of Restenosis after Percutaneous Coronary Intervention: A Meta-Analysis. J Cardiovasc Dev Dis 2022; 9:jcdd9110406. [PMID: 36421941 PMCID: PMC9693694 DOI: 10.3390/jcdd9110406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 11/04/2022] [Accepted: 11/16/2022] [Indexed: 11/23/2022] Open
Abstract
Background: Progress has been made in genetic investigations on restenosis for the past 20 years, many studies regarding AGTR1 rs5186 polymorphism and restenosis after percutaneous coronary intervention (PCI) have been published, but the result remains controversial. The study aimed to explore the relationship between rs5186 polymorphism and the risk of restenosis after PCI. Methods: We performed a systematic search on PubMed, Web of Science, Embase, CNKI, and Wan Fang databases up to December 2021. Two authors individually extracted all useful data of each study involved in this meta-analysis and assessed the study quality using the Newcastle-Ottawa scale. Odds ratios (ORs) and 95% confidence intervals (CIs) were combined in different genetic models for evaluation using a random-effects model or fixed-effect model. Results: There were eventually 8 studies of 1111 cases and 4097 controls eligible for this meta-analysis. Significant associations were found between rs5186 polymorphism and restenosis after PCI.allelic (OR: 1.31, 95% CI: 1.17−1.47, p < 0.001), homozygous (OR: 1.90, 95% CI: 1.50−2.44, p < 0.001), heterozygous (OR: 1.10, 95% CI: 0.93−1.29, p = 0.27), recessive (OR: 1.80, 95% CI: 1.37−2.36, p < 0.001), dominant genetic model (OR: 1.24, 95% CI: 1.06−1.44, p = 0.006). Subgroup analyses indicated a significant association in Asians. Conclusions: The rs5186 polymorphism in the AGTR1 gene increases the risk of restenosis after PCI in Asians significantly.
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Affiliation(s)
- Feng Lv
- Department of Cardiology, Suzhou Dushu Lake Hospital, Dushu Lake Hospital Affiliated to Soochow University, Medical Center of Soochow University, Suzhou 215125, China
- Department of Cardiology, Shengzhou People’s Hospital, The First Affiliated Hospital of Zhejiang University Shengzhou Branch, Shengzhou 312400, China
| | - Yufeng Jiang
- Department of Cardiology, Suzhou Dushu Lake Hospital, Dushu Lake Hospital Affiliated to Soochow University, Medical Center of Soochow University, Suzhou 215125, China
| | - Yebao Wang
- Department of Cardiology, Suzhou Dushu Lake Hospital, Dushu Lake Hospital Affiliated to Soochow University, Medical Center of Soochow University, Suzhou 215125, China
| | - Ting Zhang
- Department of Cardiology, Suzhou Dushu Lake Hospital, Dushu Lake Hospital Affiliated to Soochow University, Medical Center of Soochow University, Suzhou 215125, China
| | - Yafeng Zhou
- Department of Cardiology, Suzhou Dushu Lake Hospital, Dushu Lake Hospital Affiliated to Soochow University, Medical Center of Soochow University, Suzhou 215125, China
- Correspondence:
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Abstract
Swine disease models are essential for mimicry of human metabolic and vascular pathophysiology, thereby enabling high-fidelity translation to human medicine. The worldwide epidemic of obesity, metabolic disease, and diabetes has prompted the focus on these diseases in this review. We highlight the remarkable similarity between Ossabaw miniature swine and humans with metabolic syndrome and atherosclerosis. Although the evidence is strongest for swine models of coronary artery disease, findings are generally applicable to any vascular bed. We discuss the major strengths and weaknesses of swine models. The development of vascular imaging is an example of optimal vascular engineering in swine. Although challenges regarding infrastructure and training of engineers in the use of swine models exist, opportunities are ripe for gene editing, studies of molecular mechanisms, and use of swine in coronary artery imaging and testing of devices that can move quickly to human clinical studies.
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Affiliation(s)
- Michael Sturek
- Department of Anatomy, Cell Biology, and Physiology, Indiana University School of Medicine, Indianapolis, Indiana 46202-5120, USA; .,Weldon School of Biomedical Engineering, Purdue University, West Lafayette, Indiana 46907, USA
| | - Mouhamad Alloosh
- Department of Anatomy, Cell Biology, and Physiology, Indiana University School of Medicine, Indianapolis, Indiana 46202-5120, USA;
| | - Frank W Sellke
- Division of Cardiothoracic Surgery, Department of Surgery, Cardiovascular Research Center, Rhode Island Hospital and Warren Alpert Medical School of Brown University, Providence, Rhode Island 02903, USA
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Jabagi H, Chong AY, So D, Glineur D, Rubens FD. Native Coronary Disease Progression Post Coronary Artery Bypass Grafting. CARDIOVASCULAR REVASCULARIZATION MEDICINE 2019; 21:295-302. [PMID: 31204241 DOI: 10.1016/j.carrev.2019.05.017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2018] [Revised: 05/09/2019] [Accepted: 05/17/2019] [Indexed: 10/26/2022]
Abstract
BACKGROUND It remains unclear if graft type impacts native disease progression in the target coronary artery post coronary artery bypass grafting (CABG). METHODS Patients who underwent repeat angiograms at least 6 months post CABG with ≥1 arterial graft were included. Pre/post CABG angiograms were examined by 2 experienced readers. Progression was defined as new stenosis of ≥50% in a previously normal coronary, an increase in previous stenosis of ≥20%, or a new occlusion. Primary outcome was the occurrence of native disease progression in bypassed vessels. Secondary outcomes included complete occlusion, left main (LM) and distal disease progression. Cox-proportional hazard regression models were used for time-to-event outcomes. RESULTS Study population included 98 patients comprising 263 grafts (143 arterial/120 venous grafts). Median time from surgery to catheterization was 559 days (Interquartile Range 374,910).Ninety-one target vessels showed progression (34.6%) with 75 to complete occlusion (28.5%). Progression was not associated with graft choice (HR 0.74(0.49,1.13) p = 0.163),but was significantly associated with age(p = 0.034),previous PCI(p = 0.002),ACE inhibitor (ACEi) use(p < 0.001),CAD severity (p < 0.001),CCS class III/IV(p = 0.016) and NYHA class III/IV(p < 0.001). Progression to occlusion was significantly associated with SVG (p = 0.019), as well as previous percutaneous coronary intervention (p = 0.007) and ACEi use (p < 0.001). LM disease progression was significantly associated with peripheral vascular disease (HR 5.44(1.92, 15.46), p = 0.001), and not affected by graft type (p = 0.754). CONCLUSIONS Native CAD progression in non-LM coronaries is multifactorial, while SVG use was only associated with occlusion of non-LM coronaries. The implications of this study warrant consideration for increased arterial grafting in CABG patients, while the negative associations of previous PCI and ACEi use carry important clinical implications, which require further investigation.
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Affiliation(s)
- Habib Jabagi
- Division of Cardiac Surgery, University of Ottawa Heart Institute, 40 Ruskin Street, Ottawa, Ontario K1Y 4W7, Canada
| | - Aun-Yeong Chong
- Division of Cardiology, University of Ottawa Heart Institute, 40 Ruskin Street, Ottawa, Ontario K1Y 4W7, Canada
| | - Derek So
- Division of Cardiology, University of Ottawa Heart Institute, 40 Ruskin Street, Ottawa, Ontario K1Y 4W7, Canada
| | - David Glineur
- Division of Cardiac Surgery, University of Ottawa Heart Institute, 40 Ruskin Street, Ottawa, Ontario K1Y 4W7, Canada
| | - Fraser D Rubens
- Division of Cardiac Surgery, University of Ottawa Heart Institute, 40 Ruskin Street, Ottawa, Ontario K1Y 4W7, Canada.
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Cornelissen A, Vogt FJ. The effects of stenting on coronary endothelium from a molecular biological view: Time for improvement? J Cell Mol Med 2018; 23:39-46. [PMID: 30353645 PMCID: PMC6307786 DOI: 10.1111/jcmm.13936] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Accepted: 08/27/2018] [Indexed: 12/13/2022] Open
Abstract
Coronary artery stenting following balloon angioplasty represents the gold standard in revascularization of coronary artery stenoses. However, stent deployment as well as percutaneous transluminal coronary angioplasty (PTCA) alone causes severe injury of vascular endothelium. The damaged endothelium is intrinsically repaired by locally derived endothelial cells and by circulating endothelial progenitor cells from the blood, leading to re‐population of the denuded regions within several weeks to months. However, the process of re‐endothelialization is often incomplete or dysfunctional, promoting in‐stent thrombosis and restenosis. The molecular and biomechanical mechanisms that influence the process of re‐endothelialization in stented segments are incompletely understood. Once the endothelium is restored, endothelial function might still be impaired. Several strategies have been followed to improve endothelial function after coronary stenting. In this review, the effects of stenting on coronary endothelium are outlined and current and future strategies to improve endothelial function after stent deployment are discussed.
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Affiliation(s)
- Anne Cornelissen
- Department of Cardiology, Pneumology, Angiology, and Internal Intensive Medicine, University Hospital Aachen, Aachen, Germany
| | - Felix Jan Vogt
- Department of Cardiology, Pneumology, Angiology, and Internal Intensive Medicine, University Hospital Aachen, Aachen, Germany
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Zhu M, Yang M, Lin J, Zhu H, Lu Y, Wang B, Xue Y, Fang C, Tang L, Xu B, Jiang J, Chen X. Association of seven renin angiotensin system gene polymorphisms with restenosis in patients following coronary stenting. J Renin Angiotensin Aldosterone Syst 2017; 18:1470320316688774. [PMID: 28196432 PMCID: PMC5843879 DOI: 10.1177/1470320316688774] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Background and objective: Percutaneous coronary intervention, despite being effective for coronary revascularization, causes in-stent restenosis due to neointimal hyperplasia in a large number of patients. The renin-angiotensin system is involved in neointimal hyperplasia. This study sought to evaluate seven gene polymorphisms of key renin-angiotensin system components, including angiotensinogen, angiotensin-converting enzyme and angiotensin II type 1a receptors, and their associations with in-stent restenosis in patients with coronary artery disease following coronary stenting. Methods and results: Three hundred and fifty-two patients undergoing coronary drug-eluting stent implantation were recruited. Seventy-five patients (21.3%) were diagnosed as restenosis by angiography. Genotyping for angiotensin-converting enzyme insertion/deletion demonstrated a significant association of angiotensin-converting enzyme DD genotype with the occurrence of restenosis. Direct DNA sequencing revealed no association of angiotensinogen (M235T, G217A, G152A, G-6A, and A-20C) or angiotensin II type I receptor A1166C polymorphisms with in-stent restenosis. However, angiotensin II type 1a A1166C polymorphism was significantly associated with increased susceptibility to restenosis in a subgroup of patients aged more than 60 years. Conclusion: Thus, our study suggests that genetic polymorphisms of angiotensin-converting enzyme insertion/deletion are associated with in-stent restenosis in coronary artery disease patients following coronary stenting.
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Affiliation(s)
- Min Zhu
- 1 Laboratory of Cardiovascular Disease, Taizhou Hospital, Wenzhou Medical University, China.,2 Enze Medical Research Center, Taizhou Hospital, Wenzhou Medical University, China
| | - Minjun Yang
- 1 Laboratory of Cardiovascular Disease, Taizhou Hospital, Wenzhou Medical University, China.,3 Department of Cardiology, Taizhou Hospital, Wenzhou Medical University, China
| | - Jiangbo Lin
- 1 Laboratory of Cardiovascular Disease, Taizhou Hospital, Wenzhou Medical University, China.,3 Department of Cardiology, Taizhou Hospital, Wenzhou Medical University, China
| | - Huanhuan Zhu
- 1 Laboratory of Cardiovascular Disease, Taizhou Hospital, Wenzhou Medical University, China.,3 Department of Cardiology, Taizhou Hospital, Wenzhou Medical University, China
| | - Yifei Lu
- 1 Laboratory of Cardiovascular Disease, Taizhou Hospital, Wenzhou Medical University, China.,3 Department of Cardiology, Taizhou Hospital, Wenzhou Medical University, China
| | - Bing Wang
- 1 Laboratory of Cardiovascular Disease, Taizhou Hospital, Wenzhou Medical University, China.,3 Department of Cardiology, Taizhou Hospital, Wenzhou Medical University, China
| | - Yinshen Xue
- 1 Laboratory of Cardiovascular Disease, Taizhou Hospital, Wenzhou Medical University, China.,3 Department of Cardiology, Taizhou Hospital, Wenzhou Medical University, China
| | - Congfeng Fang
- 1 Laboratory of Cardiovascular Disease, Taizhou Hospital, Wenzhou Medical University, China.,3 Department of Cardiology, Taizhou Hospital, Wenzhou Medical University, China
| | - Lijiang Tang
- 1 Laboratory of Cardiovascular Disease, Taizhou Hospital, Wenzhou Medical University, China.,3 Department of Cardiology, Taizhou Hospital, Wenzhou Medical University, China
| | - Baohui Xu
- 4 Department of Surgery, Stanford University School of Medicine, USA
| | - Jianjun Jiang
- 1 Laboratory of Cardiovascular Disease, Taizhou Hospital, Wenzhou Medical University, China.,3 Department of Cardiology, Taizhou Hospital, Wenzhou Medical University, China
| | - Xiaofeng Chen
- 1 Laboratory of Cardiovascular Disease, Taizhou Hospital, Wenzhou Medical University, China.,2 Enze Medical Research Center, Taizhou Hospital, Wenzhou Medical University, China.,3 Department of Cardiology, Taizhou Hospital, Wenzhou Medical University, China
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Miao HW, Gong H. Association of ACE insertion or deletion polymorphisms with the risk of coronary restenosis after percutaneous coronary intervention: A meta-analysis. J Renin Angiotensin Aldosterone Syst 2015. [PMID: 26195267 DOI: 10.1177/1470320315588233] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
OBJECTIVE Previous case-control studies on the relationship between the angiotensin-converting enzyme (ACE) gene insertion/deletion (I/D) polymorphisms and coronary restenosis did not reach the same conclusion. In the present study, we aimed to further evaluate the relationship between the ACE gene I/D polymorphisms and coronary restenosis, after percutaneous coronary intervention (PCI). METHODS By searching PubMed, EMBase, the Chinese Biomedical Literature Database and Wanfang database, we selected 16 case-control studies related to ACE gene I/D polymorphism and coronary restenosis after PCI. To test for heterogeneity in each study, we utilized the Q-test and I(2) test. To merge the odds ratio (OR) and 95% CI, we utilized the random effects model during the analyses. RESULTS The present study included 4693 subjects: 1241 patients with coronary restenosis and 3452 without coronary restenosis. By meta-analysis, we found there was significant association of ACE gene I/D polymorphism with coronary restenosis (D allele versus I allele: OR = 1.92; 95% CI (1.40-2.43); p < 0.001). A subgroup analysis, by stratification according to ethnicity, also showed that this association was found not only in the Caucasian population ((D allele versus I allele: OR = 1.94; 95% CI (1.38-2.80); p < 0.001)), but also in the Asian population ((D allele versus I allele: OR = 1.83; 95% CI (1.05-3.20); p = 0.03)). After stratification according to age, we found that the D allele carriers have a higher risk for development of coronary restenosis in subjects < 60 years old (OR = 2.13; 95% CI: 1.40-3.24; p = 0.0004); while in the subjects ⩾ 60 years old, the association was present with bordering significance (OR = 1.48; 95%CI: 0.98-2.25; p = 0.06). CONCLUSIONS The present study suggested that the ACE gene I/D polymorphism was associated with coronary restenosis, regardless of age and ethnicity.
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Affiliation(s)
- Hai-Wei Miao
- Department of Cardiology, Jinshan Hospital, Fudan University, Shanghai, Peoples' Republic of China
| | - Hui Gong
- Department of Cardiology, Jinshan Hospital, Fudan University, Shanghai, Peoples' Republic of China
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Measuring and targeting aldosterone and renin in atherosclerosis-a review of clinical data. Am Heart J 2011; 162:585-96. [PMID: 21982648 DOI: 10.1016/j.ahj.2011.06.015] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2011] [Accepted: 06/21/2011] [Indexed: 01/13/2023]
Abstract
Our understanding of the development and progression of atherosclerosis has increased substantially over the past decades. A significant role for the renin-angiotensin-aldosterone system (RAAS) in this process has gained appreciation in recent years. Preclinical and clinical studies have associated components of the RAAS with various cardiovascular disease conditions. Classically known for its contribution to hypertension, dysregulation of the system is now also believed to promote vascular inflammation, fibrosis, remodeling, and endothelial dysfunction, all intimately related to atherosclerosis. The reduction in cardiovascular mortality and morbidity, as seen with the use of angiotensin-converting enzyme inhibitors or angiotensin II receptor blockers, supports the concept that RAAS is involved in the pathogenesis of atherosclerotic disease. However, the underlying molecular mechanisms of the pathophysiology remain to be completely understood. Evidence points toward additional benefit from therapeutic approaches aiming at more complete inhibition of the system and the possible utility of renin or aldosterone in the prediction of cardiovascular outcome. This review will summarize the current knowledge from clinical studies regarding the presumptive role of renin and aldosterone in the prediction and management of patients with atherosclerosis. For this purpose, a literature search was performed, focusing on available clinical data regarding renin or aldosterone and cardiovascular outcome.
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Quinaprilat-eluting stents do not attenuate intimal thickening following stenting in porcine coronary arteries. Atherosclerosis 2008; 205:120-5. [PMID: 19135197 DOI: 10.1016/j.atherosclerosis.2008.11.029] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/16/2008] [Revised: 11/11/2008] [Accepted: 11/25/2008] [Indexed: 11/22/2022]
Abstract
OBJECTIVE Vascular injury increases angiotensin-converting enzyme (ACE) activity in the vessel wall, and experimental evidence suggests that high-dose oral ACE inhibition reduces intimal hyperplasia following balloon angioplasty. Local drug delivery can achieve high local concentrations which may be especially efficacious in inhibiting tissue growth following stent implantation. The aim of this study was to evaluate the angiographic and histomorphologic effects of quinaprilat-eluting stents in normal porcine coronary arteries. METHODS Ten pigs received phosphorylcholine-coated stents in each of the three major coronary arteries: one loaded with 780 microg quinaprilat, one with the solvent and one non-loaded control. Quantitative angiography was performed before and after stenting and at 4 weeks follow-up. At this time point the stented arteries were also analyzed using histology and morphometry. RESULTS Repeated measures ANOVA yielded significantly smaller angiographic lumen in both quinaprilat and solvent groups: 2.62+/-0.31 and 2.65+/-0.31 mm, respectively versus control: 2.70+/-0.32 mm at follow-up, p<0.05. Histology confirmed this finding with an increment in intimal area (2.5+/-0.86 mm(2)) and thickness (0.57+/-0.29 mm) in the quinaprilat group; versus solvent (1.98+/-0.57 mm(2) 0.4+/-0.26 mm) and controls (1.92+/-0.50mm(2) and 0.41+/-0.18 mm). CONCLUSION Quinaprilat-eluting stents do not attenuate neointimal thickening following implantation in normal porcine coronary arteries, but rather show a tendency towards the opposite.
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Ferrero V, Ribichini F, Piessens M, Heyndrickx GR, Verbeke L, de Bruyne B, Feola M, Vassanelli C, Wijns W. Intracoronary beta-irradiation for the treatment of de novo lesions: 5-year clinical follow-up of the BetAce randomized trial. Am Heart J 2007; 153:398-402. [PMID: 17307419 DOI: 10.1016/j.ahj.2006.11.015] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/16/2006] [Accepted: 11/23/2006] [Indexed: 12/01/2022]
Abstract
BACKGROUND Vascular brachytherapy (VBT) has been used for the prevention of restenosis. Despite initial positive results, long-term follow-up has shown a progressive loss of benefit in clinical outcome after beta-irradiation. We report the 5-year follow-up of the BetAce trial. METHODS This prospective, randomized, single-blind trial included 61 patients treated for 64 de novo coronary lesions: 31 patients (33 stenoses) were treated with bare metal stents (control group), and 30 patients (31 stenoses) were treated with intracoronary beta-irradiation at the time of stented angioplasty (VBT group). RESULTS Baseline and procedural data were similar between treatment arms. At 6 months, VBT reduced the need for target vessel revascularization (13% vs 35.5%, P = .04), but there was no significant difference in the 6- and 12-month event-free survival when clinical events were ranked. Between 1 and 5 years, an increasing number of target vessel failures was observed in both groups, leading to a similar long-term clinical outcome at 5 years (event-free survival 43% and 45% in the VBT and control groups, respectively, log-rank 0.001, P = .9). CONCLUSIONS Beta-irradiation in de novo coronary lesions significantly reduced in-stent recurrences at 6 months compared with standard procedures. However, this initial benefit was not sustained in the long term. The results of this randomized study confirm the delayed and progressive restenotic process after beta-irradiation and stent implantation in de novo lesions.
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Affiliation(s)
- Valeria Ferrero
- Department of Biomedical and Surgical Sciences, Section of Cardiology, University of Verona, Verona, Italy.
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Félétou M, Vanhoutte PM. Endothelial dysfunction: a multifaceted disorder (The Wiggers Award Lecture). Am J Physiol Heart Circ Physiol 2006; 291:H985-1002. [PMID: 16632549 DOI: 10.1152/ajpheart.00292.2006] [Citation(s) in RCA: 543] [Impact Index Per Article: 30.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Endothelial cells synthesize and release various factors that regulate angiogenesis, inflammatory responses, hemostasis, as well as vascular tone and permeability. Endothelial dysfunction has been associated with a number of pathophysiological processes. Oxidative stress appears to be a common denominator underlying endothelial dysfunction in cardiovascular diseases. However, depending on the pathology, the vascular bed studied, the stimulant, and additional factors such as age, sex, salt intake, cholesterolemia, glycemia, and hyperhomocysteinemia, the mechanisms underlying the endothelial dysfunction can be markedly different. A reduced bioavailability of nitric oxide (NO), an alteration in the production of prostanoids, including prostacyclin, thromboxane A2, and/or isoprostanes, an impairment of endothelium-dependent hyperpolarization, as well as an increased release of endothelin-1, can individually or in association contribute to endothelial dysfunction. Therapeutic interventions do not necessarily restore a proper endothelial function and, when they do, may improve only part of these variables.
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Affiliation(s)
- Michel Félétou
- Department of Angiology, Institut de Recherches Servier, Suresnes, France
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Ribichini F, Pugno F, Ferrero V, Bussolati G, Feola M, Russo P, Di Mario C, Colombo A, Vassanelli C. Cellular immunostaining of angiotensin-converting enzyme in human coronary atherosclerotic plaques. J Am Coll Cardiol 2006; 47:1143-9. [PMID: 16545643 DOI: 10.1016/j.jacc.2005.12.022] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2005] [Revised: 08/30/2005] [Accepted: 09/08/2005] [Indexed: 11/19/2022]
Abstract
OBJECTIVES The aim of this study was to determine the cellular localization of angiotensin I-converting enzyme (ACE) in the atherosclerotic plaque and its correlation with inflammation and cellular proliferation. BACKGROUND Angiotensin I-converting enzyme inhibitors reduce the incidence of vascular events; therefore, tissue ACE may play a determinant role in the pathophysiology of the atherosclerotic plaque. METHODS Histology and immunocytochemistry of de novo coronary plaques retrieved with directional coronary atherectomy from 141 patients were analyzed: 87 with stable angina, 39 with subacute unstable angina, and 15 with acute unstable angina. RESULTS Compared with stable patients, unstable patients showed more thrombotic lesions (72% vs. 27%, p < 0.0001), smaller areas of fibrous plaque (2.3 +/- 1.2 mm2 vs. 2.8 +/- 1.1 mm2, p = 0.02), higher cellular proliferative score (0.78 +/- 0.9 vs. 0.27 +/- 0.6, p = 0.003), larger content of ACE-stained cells (26.3 +/- 23% vs. 12.6 +/- 15%, p = 0.005) and larger areas of inflammation as identified by CD68 immunostaining (29.5 +/- 22% vs. 20.2 +/- 19%, p = 0.02). A significant linear correlation was found between CD68- and ACE-stained areas (mm2) among unstable patients (r = 0.6, p = 0.0001), but it was absent among stable patients (r = 0.006, p = 0.9). Co-localization of ACE, CD68, and alpha-actin was confirmed by double immunostaining. Patients with Ki-67-positive staining as an index of cell proliferation showed also significantly larger areas of ACE immunoactivity (p = 0.004). CONCLUSIONS Our data demonstrate ACE immunoactivity in inflammatory and proliferative cells of coronary atherosclerotic plaques. In particular, patients with unstable angina showed larger areas of ACE immunoactive tissue and proliferating cells compared with stable patients. These observations support a role of the enzyme in the pathophysiology of coronary unstable plaques and suggest potentially different effects of ACE inhibitors according to clinical presentation.
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Affiliation(s)
- Flavio Ribichini
- Catheterization Laboratory, Ospedale Maggiore della Carità, Universita' del Piemonte Orientale, Novara, Italy.
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