1
|
Tamang HK, Yang R, Song Z, Hsu S, Peng C, Tung Y, Tzeng B, Chen C. Ca v 3.2 T-type calcium channel regulates mouse platelet activation and arterial thrombosis. J Thromb Haemost 2022; 20:1887-1899. [PMID: 35490411 PMCID: PMC9541131 DOI: 10.1111/jth.15745] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 04/21/2022] [Accepted: 04/25/2022] [Indexed: 11/30/2022]
Abstract
BACKGROUND Cav 3.2 is a T-type calcium channel that causes low-threshold exocytosis. T-type calcium channel blockers reduce platelet granule exocytosis and aggregation. However, studies of the T-type calcium channel in platelets are lacking. OBJECTIVE To examine the expression and role of Cav 3.2 in platelet function. METHODS Global Cav 3.2-/- and platelet-specific Cav 3.2-/- mice and littermate controls were used for this study. Western blot analysis was used to detect the presence of Cav 3.2 and activation of the calcium-responsive protein extracellular signal-regulated kinase (ERK). Fura-2 dye was used to assess platelet calcium. Flow cytometry and light transmission aggregometry were used to evaluate platelet activation markers and aggregation, respectively. FeCl3 -induced thrombosis and a microfluidic flow device were used to assess in vivo and ex vivo thrombosis, respectively. RESULTS Cav 3.2 was expressed in mouse platelets. As compared with wild-type controls, Cav 3.2-/- mouse platelets showed reduced calcium influx. Similarly, treatment with the T-type calcium channel inhibitor Ni2+ decreased the calcium influx in wild-type platelets. As compared with controls, both Cav 3.2-/- and Ni2+ -treated wild-type platelets showed reduced activation of ERK. ATP release, P-selectin exposure, and αIIb β3 activation were reduced in Cav 3.2-/- and Ni2+ -treated wild-type platelets, as was platelet aggregation. On in vivo and ex vivo thrombosis assay, Cav3.2 deletion caused delayed thrombus formation. However, tail bleeding assay showed intact hemostasis. CONCLUSION These results suggest that Cav 3.2 is required for the optimal activation of platelets.
Collapse
Affiliation(s)
- Hem Kumar Tamang
- Taiwan International Graduate Program in Molecular MedicineNational Yang Ming Chiao Tung University and Academia SinicaTaipeiTaiwan
- Institute of Biomedical SciencesAcademia SinicaTaipeiTaiwan
| | - Ruey‐Bing Yang
- Taiwan International Graduate Program in Molecular MedicineNational Yang Ming Chiao Tung University and Academia SinicaTaipeiTaiwan
- Institute of Biomedical SciencesAcademia SinicaTaipeiTaiwan
| | - Zong‐Han Song
- Institute of Biomedical SciencesAcademia SinicaTaipeiTaiwan
| | - Shao‐Chun Hsu
- Institute of Biomedical SciencesAcademia SinicaTaipeiTaiwan
| | | | - Yi‐Chung Tung
- Research Center for Applied SciencesAcademia SinicaTaipeiTaiwan
| | - Bing‐Hsiean Tzeng
- Division of CardiologyFar Eastern Memorial Hospital and Tri‐Service General HospitalNational Defense Medical CenterTaipeiTaiwan
| | - Chien‐Chang Chen
- Taiwan International Graduate Program in Molecular MedicineNational Yang Ming Chiao Tung University and Academia SinicaTaipeiTaiwan
- Institute of Biomedical SciencesAcademia SinicaTaipeiTaiwan
| |
Collapse
|
2
|
Wu Y, Vazquez-Prada KX, Liu Y, Whittaker AK, Zhang R, Ta HT. Recent Advances in the Development of Theranostic Nanoparticles for Cardiovascular Diseases. Nanotheranostics 2021; 5:499-514. [PMID: 34367883 PMCID: PMC8342263 DOI: 10.7150/ntno.62730] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Accepted: 07/05/2021] [Indexed: 02/06/2023] Open
Abstract
Cardiovascular disease (CVD) is the leading cause of death worldwide. CVD includes a group of disorders of the heart and blood vessels such as myocardial infarction, ischemic heart, ischemic injury, injured arteries, thrombosis and atherosclerosis. Amongst these, atherosclerosis is the dominant cause of CVD and is an inflammatory disease of the blood vessel wall. Diagnosis and treatment of CVD remain the main challenge due to the complexity of their pathophysiology. To overcome the limitations of current treatment and diagnostic techniques, theranostic nanomaterials have emerged. The term "theranostic nanomaterials" refers to a multifunctional agent with both therapeutic and diagnostic abilities. Theranostic nanoparticles can provide imaging contrast for a diversity of techniques such as magnetic resonance imaging (MRI), positron emission tomography (PET) and computed tomography (CT). In addition, they can treat CVD using photothermal ablation and/or medication by the drugs in nanoparticles. This review discusses the latest advances in theranostic nanomaterials for the diagnosis and treatment of CVDs according to the order of disease development. MRI, CT, near-infrared spectroscopy (NIR), and fluorescence are the most widely used strategies on theranostics for CVDs detection. Different treatment methods for CVDs based on theranostic nanoparticles have also been discussed. Moreover, current problems of theranostic nanoparticles for CVDs detection and treatment and future research directions are proposed.
Collapse
Affiliation(s)
- Yuao Wu
- Queensland Micro- and Nanotechnology, Griffith University, Brisbane, Queensland 4111, Australia
- Australian Institute for Bioengineering and Nanotechnology, the University of Queensland, Brisbane, Queensland 4072, Australia
| | - Karla X. Vazquez-Prada
- Queensland Micro- and Nanotechnology, Griffith University, Brisbane, Queensland 4111, Australia
- Australian Institute for Bioengineering and Nanotechnology, the University of Queensland, Brisbane, Queensland 4072, Australia
| | - Yajun Liu
- Australian Institute for Bioengineering and Nanotechnology, the University of Queensland, Brisbane, Queensland 4072, Australia
| | - Andrew K. Whittaker
- Australian Institute for Bioengineering and Nanotechnology, the University of Queensland, Brisbane, Queensland 4072, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, the University of Queensland, QLD 4072, Australia
| | - Run Zhang
- Australian Institute for Bioengineering and Nanotechnology, the University of Queensland, Brisbane, Queensland 4072, Australia
| | - Hang T. Ta
- Queensland Micro- and Nanotechnology, Griffith University, Brisbane, Queensland 4111, Australia
- School of Environment and Science, Griffith University, Brisbane, Queensland 4111, Australia
- Australian Institute for Bioengineering and Nanotechnology, the University of Queensland, Brisbane, Queensland 4072, Australia
| |
Collapse
|
3
|
Khang MK, Kuriakose AE, Nguyen T, Co CMD, Zhou J, Truong TTD, Nguyen KT, Tang L. Enhanced Endothelial Cell Delivery for Repairing Injured Endothelium via Pretargeting Approach and Bioorthogonal Chemistry. ACS Biomater Sci Eng 2020; 6:6831-6841. [PMID: 33320611 DOI: 10.1021/acsbiomaterials.0c00957] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Arterial wall injury often leads to endothelium cell activation, endothelial detachment, and atherosclerosis plaque formation. While abundant research efforts have been placed on treating the end stages of the disease, no cure has been developed to repair injured and denude endothelium often occurred at an early stage of atherosclerosis. Here, a pretargeting cell delivery strategy using combined injured endothelial targeting nanoparticles and bioorthogonal click chemistry approach was developed to deliver endothelial cells to replenish the injured endothelium via a two-step process. First, nanoparticles bearing glycoprotein 1b α (Gp1bα) proteins and tetrazine (Tz) were fabricated to provide a homogeneous nanoparticle coating on an injured arterial wall via the interactions between Gp1bα and von Willebrand factor (vWF), a ligand that is present on denuded endothelium. Second, transplanted endothelium cells bearing transcyclooctene (TCO) would be quickly immobilized on the surfaces of nanoparticles via TCO:Tz reactions. In vitro binding studies under both static and flow conditions confirmed that our novel Tz-labeled Gp1bα-conjugated poly(lactic-co-glycolic acid) (PLGA) nanoparticles can successfully pretargeted toward the injured site and support rapid adhesion of endothelial cells from the circulation. Ex vivo results also confirm that such an approach is highly efficient in mediating the local delivery of endothelial cells at the sites of arterial injury. The results support that this pretargeting cell delivery approach may be used for repairing injured endothelium in situ at its early stage.
Collapse
Affiliation(s)
- Min Kyung Khang
- Department of Bioengineering, University of Texas at Arlington, P.O. Box 19138, Arlington, Texas 76010, United States.,Department of Chemistry and Biochemistry, University of Texas at Arlington, Arlington, Texas 76010, United States
| | - Aneetta Elizabeth Kuriakose
- Department of Bioengineering, University of Texas at Arlington, P.O. Box 19138, Arlington, Texas 76010, United States
| | - Tam Nguyen
- Department of Bioengineering, University of Texas at Arlington, P.O. Box 19138, Arlington, Texas 76010, United States
| | - Cynthia My-Dung Co
- Department of Bioengineering, University of Texas at Arlington, P.O. Box 19138, Arlington, Texas 76010, United States
| | - Jun Zhou
- Department of Bioengineering, University of Texas at Arlington, P.O. Box 19138, Arlington, Texas 76010, United States
| | - Thuy Thi Dang Truong
- Department of Bioengineering, University of Texas at Arlington, P.O. Box 19138, Arlington, Texas 76010, United States
| | - Kytai Truong Nguyen
- Department of Bioengineering, University of Texas at Arlington, P.O. Box 19138, Arlington, Texas 76010, United States
| | - Liping Tang
- Department of Bioengineering, University of Texas at Arlington, P.O. Box 19138, Arlington, Texas 76010, United States
| |
Collapse
|
4
|
Lyu N, Du Z, Qiu H, Gao P, Yao Q, Xiong K, Tu Q, Li X, Chen B, Wang M, Pan G, Huang N, Yang Z. Mimicking the Nitric Oxide-Releasing and Glycocalyx Functions of Endothelium on Vascular Stent Surfaces. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2020; 7:2002330. [PMID: 33173746 PMCID: PMC7610264 DOI: 10.1002/advs.202002330] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2020] [Revised: 07/27/2020] [Indexed: 05/29/2023]
Abstract
Endothelium can secrete vasoactive mediators and produce specific extracellular matrix, which contribute jointly to the thromboresistance and regulation of vascular cell behaviors. From a bionic point of view, introducing endothelium-like functions onto cardiovascular stents represents the most effective means to improve hemocompatibility and reduce late stent restenosis. However, current surface strategies for vascular stents still have limitations, like the lack of multifunctionality, especially the monotony in endothelial-mimic functions. Herein, a layer-by-layer grafting strategy to create endothelium-like dual-functional surface on cardiovascular scaffolds is reported. Typically, a nitric oxide (NO, vasoactive mediator)-generating compound and an endothelial polysaccharide matrix molecule hyaluronan (HA) are sequentially immobilized on allylamine-plasma-deposited stents through aqueous amidation. In this case, the stents could be well-engineered with dual endothelial functions capable of remote and close-range regulation of the vascular microenvironment. The synergy of NO and endothelial glycocalyx molecules leads to efficient antithrombosis, smooth muscle cell (SMC) inhibition, and perfect endothelial cell (EC)-compatibility of the stents in vitro. Moreover, the dual-functional stents show efficient antithrombogenesis ex vivo, rapid endothelialization, and long-term prevention of restenosis in vivo. Therefore, this study will provide new solutions for not only multicomponent surface functionalization but also the bioengineering of endothelium-mimic vascular scaffolds with improved clinical outcomes.
Collapse
Affiliation(s)
- Nan Lyu
- Key Lab of Advanced Technology of Materials of Education MinistrySchool of Materials Science and EngineeringSouthwest Jiaotong UniversityChengduSichuan610031China
| | - Zeyu Du
- Key Lab of Advanced Technology of Materials of Education MinistrySchool of Materials Science and EngineeringSouthwest Jiaotong UniversityChengduSichuan610031China
| | - Hua Qiu
- Key Lab of Advanced Technology of Materials of Education MinistrySchool of Materials Science and EngineeringSouthwest Jiaotong UniversityChengduSichuan610031China
| | - Peng Gao
- Key Lab of Advanced Technology of Materials of Education MinistrySchool of Materials Science and EngineeringSouthwest Jiaotong UniversityChengduSichuan610031China
| | - Qin Yao
- Department of UrologyAffiliated Hospital of Jiangsu University438 Jiefang RoadZhenjiangJiangsu212001China
| | - Kaiqin Xiong
- Key Lab of Advanced Technology of Materials of Education MinistrySchool of Materials Science and EngineeringSouthwest Jiaotong UniversityChengduSichuan610031China
| | - Qiufen Tu
- Key Lab of Advanced Technology of Materials of Education MinistrySchool of Materials Science and EngineeringSouthwest Jiaotong UniversityChengduSichuan610031China
| | - Xiangyang Li
- Key Lab of Advanced Technology of Materials of Education MinistrySchool of Materials Science and EngineeringSouthwest Jiaotong UniversityChengduSichuan610031China
| | - Binghai Chen
- Department of UrologyAffiliated Hospital of Jiangsu University438 Jiefang RoadZhenjiangJiangsu212001China
| | - Miao Wang
- Institute for Advanced MaterialsSchool of Materials Science and EngineeringJiangsu University301 Xuefu RoadZhenjiangJiangsu212013China
| | - Guoqing Pan
- Institute for Advanced MaterialsSchool of Materials Science and EngineeringJiangsu University301 Xuefu RoadZhenjiangJiangsu212013China
| | - Nan Huang
- Key Lab of Advanced Technology of Materials of Education MinistrySchool of Materials Science and EngineeringSouthwest Jiaotong UniversityChengduSichuan610031China
| | - Zhilu Yang
- Key Lab of Advanced Technology of Materials of Education MinistrySchool of Materials Science and EngineeringSouthwest Jiaotong UniversityChengduSichuan610031China
| |
Collapse
|
5
|
Chen J, Dai S, Liu L, Maitz MF, Liao Y, Cui J, Zhao A, Yang P, Huang N, Wang Y. Photo-functionalized TiO 2 nanotubes decorated with multifunctional Ag nanoparticles for enhanced vascular biocompatibility. Bioact Mater 2020; 6:45-54. [PMID: 32817912 PMCID: PMC7417617 DOI: 10.1016/j.bioactmat.2020.07.009] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Revised: 07/13/2020] [Accepted: 07/17/2020] [Indexed: 11/30/2022] Open
Abstract
Titanium dioxide (TiO2) has a long history of application in blood contact materials, but it often suffers from insufficient anticoagulant properties. Recently, we have revealed the photocatalytic effect of TiO2 also induces anticoagulant properties. However, for long-term vascular implant devices such as vascular stents, besides anticoagulation, also anti-inflammatory, anti-hyperplastic properties, and the ability to support endothelial repair, are desired. To meet these requirements, here, we immobilized silver nanoparticles (AgNPs) on the surface of TiO2 nanotubes (TiO2-NTs) to obtain a composite material with enhanced photo-induced anticoagulant property and improvement of the other requested properties. The photo-functionalized TiO2-NTs showed protein-fouling resistance, causing the anticoagulant property and the ability to suppress cell adhesion. The immobilized AgNPs increased the photocatalytic activity of TiO2-NTs to enhances its photo-induced anticoagulant property. The AgNP density was optimized to endow the TiO2-NTs with anti-inflammatory property, a strong inhibitory effect on smooth muscle cells (SMCs), and low toxicity to endothelial cells (ECs). The in vivo test indicated that the photofunctionalized composite material achieved outstanding biocompatibility in vasculature via the synergy of photo-functionalized TiO2-NTs and the multifunctional AgNPs, and therefore has enormous potential in the field of cardiovascular implant devices. Our research could be a useful reference for further designing of multifunctional TiO2 materials with high vascular biocompatibility. Photo-functionalized TiO2NTs@Ag composites showed excellent vascular compatibility. UV irradiation greatly improved the anticoagulant properties of the composites. Moderately loaded AgNPs strongly inhibited SMCs and MAs, but weakly inhibited ECs.
Collapse
Affiliation(s)
- Jiang Chen
- National Engineering Research Center for Biomaterials, Sichuan University, No.29 of Wangjiang Road, Wuhou District, Chengdu, Sichuan, 610064, China.,Institute of Biomaterials and Surface Engineering, Key Lab. for Advanced Technologies of Materials, Ministry of Education, Southwest Jiaotong University, NO.111 of the North 1st Section of Second Ring Road, Chengdu, 610031, China
| | - Sheng Dai
- Institute of Biomaterials and Surface Engineering, Key Lab. for Advanced Technologies of Materials, Ministry of Education, Southwest Jiaotong University, NO.111 of the North 1st Section of Second Ring Road, Chengdu, 610031, China
| | - Luying Liu
- Institute of Biomaterials and Surface Engineering, Key Lab. for Advanced Technologies of Materials, Ministry of Education, Southwest Jiaotong University, NO.111 of the North 1st Section of Second Ring Road, Chengdu, 610031, China
| | - Manfred F Maitz
- Institute of Biomaterials and Surface Engineering, Key Lab. for Advanced Technologies of Materials, Ministry of Education, Southwest Jiaotong University, NO.111 of the North 1st Section of Second Ring Road, Chengdu, 610031, China.,Max Bergmann Center of Biomaterials, Leibniz Institute of Polymer Research Dresden, Hohe Strasse 6, Dresden, 01069, Germany
| | - Yuzhen Liao
- Institute of Biomaterials and Surface Engineering, Key Lab. for Advanced Technologies of Materials, Ministry of Education, Southwest Jiaotong University, NO.111 of the North 1st Section of Second Ring Road, Chengdu, 610031, China
| | - Jiawei Cui
- Institute of Biomaterials and Surface Engineering, Key Lab. for Advanced Technologies of Materials, Ministry of Education, Southwest Jiaotong University, NO.111 of the North 1st Section of Second Ring Road, Chengdu, 610031, China
| | - Ansha Zhao
- Institute of Biomaterials and Surface Engineering, Key Lab. for Advanced Technologies of Materials, Ministry of Education, Southwest Jiaotong University, NO.111 of the North 1st Section of Second Ring Road, Chengdu, 610031, China
| | - Ping Yang
- Institute of Biomaterials and Surface Engineering, Key Lab. for Advanced Technologies of Materials, Ministry of Education, Southwest Jiaotong University, NO.111 of the North 1st Section of Second Ring Road, Chengdu, 610031, China
| | - Nan Huang
- Institute of Biomaterials and Surface Engineering, Key Lab. for Advanced Technologies of Materials, Ministry of Education, Southwest Jiaotong University, NO.111 of the North 1st Section of Second Ring Road, Chengdu, 610031, China
| | - Yunbing Wang
- National Engineering Research Center for Biomaterials, Sichuan University, No.29 of Wangjiang Road, Wuhou District, Chengdu, Sichuan, 610064, China
| |
Collapse
|
6
|
Djerf H, Millinger J, Falkenberg M, Jivegård L, Svensson M, Nordanstig J. Response to Letter Regarding Article, "Absence of Long-Term Benefit of Revascularization in Patients With Intermittent Claudication: Five-Year Results From the IRONIC Randomized Controlled Trial". Circ Cardiovasc Interv 2020; 13:e009385. [PMID: 32519878 DOI: 10.1161/circinterventions.120.009385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Henrik Djerf
- Department of Vascular Surgery (H.D., J.M., J.N.), Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Johan Millinger
- Department of Vascular Surgery (H.D., J.M., J.N.), Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Mårten Falkenberg
- Department of Radiology, Institute of Clinical Science, Sahlgrenska Academy, University of Gothenburg, Sweden (M.F.)
| | - Lennart Jivegård
- HTA Centrum (Health Technology Assessment Center) Västra Götaland (L.J.), Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Mikael Svensson
- Department of Public Health and Community Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Sweden (M.S.)
| | - Joakim Nordanstig
- Department of Vascular Surgery (H.D., J.M., J.N.), Sahlgrenska University Hospital, Gothenburg, Sweden
| |
Collapse
|
7
|
Lee S, Byun JK, Park M, Woo Kim S, Lee S, Kim JG, Lee IK, Choi YK, Park KG. Melatonin inhibits vascular smooth muscle cell proliferation and apoptosis through upregulation of Sestrin2. Exp Ther Med 2020; 19:3454-3460. [PMID: 32373191 PMCID: PMC7197251 DOI: 10.3892/etm.2020.8638] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Accepted: 12/10/2019] [Indexed: 12/12/2022] Open
Abstract
Excessive vascular smooth muscle cell (VSMC) proliferation contributes to the development of atherosclerosis and restenosis. Furthermore, apoptosis of VSMCs accelerates plaque rupture in the atherosclerotic vessels. Therefore, a strategy that regulates both VSMC proliferation and apoptosis is essential for the development of novel pharmacological tools for the treatment of atherosclerosis. Despite mounting evidence supporting the benefits of melatonin in diverse metabolic diseases, the role of melatonin in VSMC growth remains largely unknown. The present study revealed that melatonin inhibited both proliferation and apoptosis of primary cultured rat VSMCs. Melatonin induced mitochondrial energetic stress in VSMCs and subsequent induction of Sestrin2 via C/EBPβ. Melatonin-induced Sestrin2 suppressed mTORC1 activity in VSMCs, contributing to suppression of VSMC proliferation. Additionally, melatonin-induced upregulation of Sestrin2 blocked apoptosis by preventing excessive ROS generation. The results demonstrated that melatonin controlled VSMC proliferation and apoptosis via Sestrin2-mediated inhibition of mTORC1 and ROS scavenging. Therefore, melatonin should be considered as a lead compound for therapies aimed at preventing vessel lumen constriction during the course of atherosclerosis and restenosis.
Collapse
Affiliation(s)
- Seunghyeong Lee
- Department of Biomedical Science, Graduate School, Kyungpook National University, Daegu 41566, Republic of Korea.,BK21 Plus KNU Biomedical Convergence Program, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Jun-Kyu Byun
- Research Institute of Aging and Metabolism, Kyungpook National University, Daegu 41566, Republic of Korea.,Department of Internal Medicine, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, Daegu 41944, Republic of Korea
| | - Mihyang Park
- Department of Biomedical Science, Graduate School, Kyungpook National University, Daegu 41566, Republic of Korea.,BK21 Plus KNU Biomedical Convergence Program, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Sung Woo Kim
- Department of Internal Medicine, Catholic University of Daegu School of Medicine, Daegu 42472, Republic of Korea
| | - Sungwoo Lee
- New Drug Development Center, Daegu-Gyeongbuk Medical Innovation Foundation, Daegu 41061, Republic of Korea
| | - Jung-Guk Kim
- Department of Internal Medicine, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, Daegu 41944, Republic of Korea
| | - In-Kyu Lee
- Department of Internal Medicine, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, Daegu 41944, Republic of Korea
| | - Yeon-Kyung Choi
- Department of Internal Medicine, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, Daegu 41944, Republic of Korea
| | - Keun-Gyu Park
- Department of Biomedical Science, Graduate School, Kyungpook National University, Daegu 41566, Republic of Korea.,Research Institute of Aging and Metabolism, Kyungpook National University, Daegu 41566, Republic of Korea.,Department of Internal Medicine, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, Daegu 41944, Republic of Korea
| |
Collapse
|
8
|
Miller AP, Coronel J, Amengual J. The role of β-carotene and vitamin A in atherogenesis: Evidences from preclinical and clinical studies. Biochim Biophys Acta Mol Cell Biol Lipids 2020; 1865:158635. [PMID: 31978554 DOI: 10.1016/j.bbalip.2020.158635] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Revised: 01/14/2020] [Accepted: 01/16/2020] [Indexed: 02/07/2023]
Abstract
Atherosclerotic cardiovascular disease (ASCVD) is the principal contributor to myocardial infarction, the leading cause of death worldwide. Epidemiological and mechanistic studies indicate that β-carotene and its vitamin A derivatives stimulate lipid catabolism in several tissues to reduce the incidence of obesity, but their roles within ASCVD are elusive. Herein, we review the mechanisms by which β-carotene and vitamin A modulate ASCVD. First, we summarize the current knowledge linking these nutrients with epidemiological studies and lipoprotein metabolism as one of the initiating factors of ASCVD. Next, we focus on different aspects of vitamin A metabolism in immune cells such as the mechanisms of carotenoid uptake and conversion to the vitamin A metabolite, retinoic acid. Lastly, we review the effects of retinoic acid on immuno-metabolism, differentiation, and function of macrophages and T cells, the two pillars of the innate and adaptive immune response in ASCVD, respectively. This article is part of a Special Issue entitled Carotenoids recent advances in cell and molecular biology edited by Johannes von Lintig and Loredana Quadro.
Collapse
Affiliation(s)
- Anthony P Miller
- Department of Food Science and Human Nutrition, University of Illinois Urbana Champaign, Urbana, IL 61801, United States of America
| | - Johana Coronel
- Department of Food Science and Human Nutrition, University of Illinois Urbana Champaign, Urbana, IL 61801, United States of America
| | - Jaume Amengual
- Department of Food Science and Human Nutrition, University of Illinois Urbana Champaign, Urbana, IL 61801, United States of America; Division of Nutritional Sciences, University of Illinois Urbana Champaign, Urbana, IL 61801, United States of America.
| |
Collapse
|
9
|
Qiu H, Qi P, Liu J, Yang Y, Tan X, Xiao Y, Maitz MF, Huang N, Yang Z. Biomimetic engineering endothelium-like coating on cardiovascular stent through heparin and nitric oxide-generating compound synergistic modification strategy. Biomaterials 2019; 207:10-22. [PMID: 30947118 DOI: 10.1016/j.biomaterials.2019.03.033] [Citation(s) in RCA: 79] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Revised: 03/15/2019] [Accepted: 03/22/2019] [Indexed: 01/23/2023]
Abstract
Co-immobilization of two or more molecules with different and complementary functions to prevent thrombosis, suppress smooth muscle cell (SMC) proliferation, and support endothelial cell (EC) growth is generally considered to be promising for the re-endothelialization on cardiovascular stents. However, integration of molecules with distinct therapeutic effects does not necessarily result in synergistic physiological functions due to the lack of interactions among them, limiting their practical efficacy. Herein, we apply heparin and nitric oxide (NO), two key molecules of the physiological functions of endothelium, to develop an endothelium-mimetic coating. Such coating is achieved by sequential conjugation of heparin and the NO-generating compound selenocystamine (SeCA) on an amine-bearing film of plasma polymerized allylamine. The resulting surface combines the anti-coagulant (anti-FXa) function provided by the heparin and the anti-platelet activity of the catalytically produced NO. It also endows the stents with the ability to simultaneously up-regulate α-smooth muscle actin (α-SMA) expression and to increase cyclic guanylate monophosphate (cGMP) synthesis of SMC, thereby significantly promoting their contractile phenotype and suppressing their proliferation. Importantly, this endothelium-biomimetic coating creates a favorable microenvironment for EC over SMC. These features impressively improve the antithrombogenicity, re-endothelialization and anti-restenosis of vascular stents in vivo.
Collapse
Affiliation(s)
- Hua Qiu
- Key Lab of Advanced Technology of Materials of Education Ministry, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, China
| | - Pengkai Qi
- Key Lab of Advanced Technology of Materials of Education Ministry, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, China
| | - Jingxia Liu
- Physical Education Department, Southwest Jiaotong University, Chengdu, 610031, China
| | - Ying Yang
- Key Lab of Advanced Technology of Materials of Education Ministry, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, China; Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, 4059, Australia
| | - Xing Tan
- Key Lab of Advanced Technology of Materials of Education Ministry, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, China
| | - Yu Xiao
- Key Lab of Advanced Technology of Materials of Education Ministry, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, China
| | - Manfred F Maitz
- Max Bergmann Center of Biomaterials, Leibniz Institute of Polymer Research Dresden, Dresden, 01069, Germany
| | - Nan Huang
- Key Lab of Advanced Technology of Materials of Education Ministry, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, China.
| | - Zhilu Yang
- Key Lab of Advanced Technology of Materials of Education Ministry, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, China.
| |
Collapse
|
10
|
Fellows BD, Ghobrial N, Mappus E, Hargett A, Bolding M, Dean D, Mefford OT. In vitro studies of heparin-coated magnetic nanoparticles for use in the treatment of neointimal hyperplasia. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2018. [DOI: 10.1016/j.nano.2018.02.011] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
11
|
Hoving LR, de Vries MR, de Jong RCM, Katiraei S, Pronk A, Quax PHA, van Harmelen V, Willems van Dijk K. The Prebiotic Inulin Aggravates Accelerated Atherosclerosis in Hypercholesterolemic APOE*3-Leiden Mice. Nutrients 2018; 10:nu10020172. [PMID: 29401645 PMCID: PMC5852748 DOI: 10.3390/nu10020172] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2018] [Revised: 01/25/2018] [Accepted: 01/25/2018] [Indexed: 12/19/2022] Open
Abstract
The prebiotic inulin has proven effective at lowering inflammation and plasma lipid levels. As atherosclerosis is provoked by both inflammation and hyperlipidemia, we aimed to determine the effect of inulin supplementation on atherosclerosis development in hypercholesterolemic APOE*3-Leiden (E3L) mice. Male E3L mice were fed a high-cholesterol (1%) diet, supplemented with or without 10% inulin for 5 weeks. At week 3, a non-constrictive cuff was placed around the right femoral artery to induce accelerated atherosclerosis. At week 5, vascular pathology was determined by lesion thickness, vascular remodeling, and lesion composition. Throughout the study, plasma lipids were measured and in week 5, blood monocyte subtypes were determined using flow cytometry analysis. In contrast to our hypothesis, inulin exacerbated atherosclerosis development, characterized by increased lesion formation and outward vascular remodeling. The lesions showed increased number of macrophages, smooth muscle cells, and collagen content. No effects on blood monocyte composition were found. Inulin significantly increased plasma total cholesterol levels and total cholesterol exposure. In conclusion, inulin aggravated accelerated atherosclerosis development in hypercholesterolemic E3L mice, accompanied by adverse lesion composition and outward remodeling. This process was not accompanied by differences in blood monocyte composition, suggesting that the aggravated atherosclerosis development was driven by increased plasma cholesterol.
Collapse
Affiliation(s)
- Lisa R Hoving
- Department of Human Genetics and Einthoven Laboratory for Experimental Medicine, Leiden University Medical Center (LUMC), 2300 RC Leiden, The Netherlands.
| | - Margreet R de Vries
- Department of Surgery and Einthoven Laboratory for Experimental Medicine, Leiden University Medical Center (LUMC), 2300 RC Leiden, The Netherlands.
| | - Rob C M de Jong
- Department of Surgery and Einthoven Laboratory for Experimental Medicine, Leiden University Medical Center (LUMC), 2300 RC Leiden, The Netherlands.
| | - Saeed Katiraei
- Department of Human Genetics and Einthoven Laboratory for Experimental Medicine, Leiden University Medical Center (LUMC), 2300 RC Leiden, The Netherlands.
| | - Amanda Pronk
- Department of Human Genetics and Einthoven Laboratory for Experimental Medicine, Leiden University Medical Center (LUMC), 2300 RC Leiden, The Netherlands.
| | - Paul H A Quax
- Department of Surgery and Einthoven Laboratory for Experimental Medicine, Leiden University Medical Center (LUMC), 2300 RC Leiden, The Netherlands.
| | - Vanessa van Harmelen
- Department of Human Genetics and Einthoven Laboratory for Experimental Medicine, Leiden University Medical Center (LUMC), 2300 RC Leiden, The Netherlands.
| | - Ko Willems van Dijk
- Department of Human Genetics and Einthoven Laboratory for Experimental Medicine, Leiden University Medical Center (LUMC), 2300 RC Leiden, The Netherlands.
- Department of Medicine, Division Endocrinology, Leiden University Medical Center (LUMC), 2300 RC Leiden, The Netherlands.
| |
Collapse
|
12
|
He J, Bao Q, Yan M, Liang J, Zhu Y, Wang C, Ai D. The role of Hippo/yes-associated protein signalling in vascular remodelling associated with cardiovascular disease. Br J Pharmacol 2017; 175:1354-1361. [PMID: 28369744 DOI: 10.1111/bph.13806] [Citation(s) in RCA: 83] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Revised: 03/20/2017] [Accepted: 03/28/2017] [Indexed: 12/21/2022] Open
Abstract
Vascular remodelling is a vital process of a wide range of cardiovascular diseases and represents the altered structure and arrangement of blood vessels. The Hippo pathway controls organ size by regulating cell survival, proliferation and apoptosis. Yes-associated protein (YAP), a transcription coactivator, is a downstream effector of the Hippo pathway. There is growing evidence for the importance of the Hippo/YAP pathway in vascular-remodelling and related cardiovascular diseases. The Hippo/YAP pathway alters extracellular matrix production or degradation and the growth, death and migration of vascular smooth muscle cells and endothelial cells, which contributes to vascular remodelling in cardiovascular diseases such as pulmonary hypertension, atherosclerosis, restenosis, aortic aneurysms and angiogenesis. In this review, we summarize and discuss recent findings about the roles and mechanisms of Hippo/YAP signalling in vascular remodelling and related conditions. LINKED ARTICLES This article is part of a themed section on Spotlight on Small Molecules in Cardiovascular Diseases. To view the other articles in this section visit http://onlinelibrary.wiley.com/doi/10.1111/bph.v175.8/issuetoc.
Collapse
Affiliation(s)
- Jinlong He
- Tianjin Key Laboratory of Metabolic Diseases; Collaborative Innovation Center of Tianjin for Medical Epigenetics; Department of Physiology and Pathophysiology, Tianjin Medical University, Tianjin, 300070, China.,Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Tianjin Medical University, Tianjin, 300070, China
| | - Qiankun Bao
- Tianjin Key Laboratory of Metabolic Diseases; Collaborative Innovation Center of Tianjin for Medical Epigenetics; Department of Physiology and Pathophysiology, Tianjin Medical University, Tianjin, 300070, China
| | - Meng Yan
- Tianjin Key Laboratory of Metabolic Diseases; Collaborative Innovation Center of Tianjin for Medical Epigenetics; Department of Physiology and Pathophysiology, Tianjin Medical University, Tianjin, 300070, China
| | - Jing Liang
- Tianjin Key Laboratory of Metabolic Diseases; Collaborative Innovation Center of Tianjin for Medical Epigenetics; Department of Physiology and Pathophysiology, Tianjin Medical University, Tianjin, 300070, China
| | - Yi Zhu
- Tianjin Key Laboratory of Metabolic Diseases; Collaborative Innovation Center of Tianjin for Medical Epigenetics; Department of Physiology and Pathophysiology, Tianjin Medical University, Tianjin, 300070, China
| | - Chunjiong Wang
- Tianjin Key Laboratory of Metabolic Diseases; Collaborative Innovation Center of Tianjin for Medical Epigenetics; Department of Physiology and Pathophysiology, Tianjin Medical University, Tianjin, 300070, China
| | - Ding Ai
- Tianjin Key Laboratory of Metabolic Diseases; Collaborative Innovation Center of Tianjin for Medical Epigenetics; Department of Physiology and Pathophysiology, Tianjin Medical University, Tianjin, 300070, China.,Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Tianjin Medical University, Tianjin, 300070, China
| |
Collapse
|
13
|
Ruddy JM, Ikonomidis JS, Jones JA. Multidimensional Contribution of Matrix Metalloproteinases to Atherosclerotic Plaque Vulnerability: Multiple Mechanisms of Inhibition to Promote Stability. J Vasc Res 2016; 53:1-16. [PMID: 27327039 PMCID: PMC7196926 DOI: 10.1159/000446703] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2016] [Accepted: 05/07/2016] [Indexed: 12/17/2022] Open
Abstract
The prevalence of atherosclerotic disease continues to increase, and despite significant reductions in major cardiovascular events with current medical interventions, an additional therapeutic window exists. Atherosclerotic plaque growth is a complex integration of cholesterol penetration, inflammatory cell infiltration, vascular smooth muscle cell (VSMC) migration, and neovascular invasion. A family of matrix-degrading proteases, the matrix metalloproteinases (MMPs), contributes to all phases of vascular remodeling. The contribution of specific MMPs to endothelial cell integrity and VSMC migration in atherosclerotic lesion initiation and progression has been confirmed by the increased expression of these proteases in plasma and plaque specimens. Endogenous blockade of MMPs by the tissue inhibitors of metalloproteinases (TIMPs) may attenuate proteolysis in some regions, but the progression of matrix degeneration suggests that MMPs predominate in atherosclerotic plaque, precipitating vulnerability. Plaque neovascularization also contributes to instability and, coupling the known role of MMPs in angiogenesis to that of atherosclerotic plaque growth, interest in targeting MMPs to facilitate plaque stabilization continues to accumulate. This article aims to review the contributions of MMPs and TIMPs to atherosclerotic plaque expansion, neovascularization, and rupture vulnerability with an interest in promoting targeted therapies to improve plaque stabilization and decrease the risk of major cardiovascular events.
Collapse
Affiliation(s)
- Jean Marie Ruddy
- Division of Vascular Surgery, Department of Surgery, Medical University of South Carolina, Charleston, S.C., USA
| | | | | |
Collapse
|
14
|
Hirano T, Mori Y. Anti-atherogenic and anti-inflammatory properties of glucagon-like peptide-1, glucose-dependent insulinotropic polypepide, and dipeptidyl peptidase-4 inhibitors in experimental animals. J Diabetes Investig 2016; 7 Suppl 1:80-6. [PMID: 27186361 PMCID: PMC4854510 DOI: 10.1111/jdi.12446] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/15/2015] [Accepted: 11/11/2015] [Indexed: 01/08/2023] Open
Abstract
We reported that native incretins, liraglutide and dipeptidyl peptidase‐4 inhibitors (DPP‐4i) all confer an anti‐atherosclerotic effect in apolipoprotein E‐null (Apoe−/−) mice. We confirmed the anti‐atherogenic property of incretin‐related agents in the mouse wire injury model, in which the neointimal formation in the femoral artery is remarkably suppressed. Furthermore, we showed that DPP‐4i substantially suppresses plaque formation in coronary arteries with a marked reduction in the accumulation of macrophages in cholesterol‐fed rabbits. DPP‐4i showed an anti‐atherosclerotic effect in Apoe−/− mice mainly through the actions of glucagon‐like peptide‐1 and glucose‐dependent insulinotropic polypepide. However, the dual incretin receptor antagonists partially attenuated the suppressive effect of DPP‐4i on atherosclerosis in diabetic Apoe−/− mice, suggesting an incretin‐independent mechanism. Exendin‐4 and glucose‐dependent insulinotropic polypepide elicited cyclic adenosine monophosphate generation, and suppressed the lipopolysaccharide‐induced gene expression of inflammatory molecules, such as interleukin‐1β, interleukin‐6 and tumor necrosis factor‐α, in U937 human monocytes. This suppressive effect, however, was attenuated by an inhibitor of adenylate cyclase and mimicked by 8‐bromo‐cyclic adenosine monophosphate or forskolin. DPP‐4i substantially suppressed the lipopolysaccharide‐induced expression of inflammatory cytokines without affecting cyclic adenosine monophosphate generation or cell proliferation. DPP‐4i more strongly suppressed the lipopolysaccharide‐induced gene expression of inflammatory molecules than incretins, most likely through inactivation of CD26. Glucagon‐like peptide‐1 and glucose‐dependent insulinotropic polypepide suppressed oxidized low‐density lipoprotein‐induced macrophage foam cell formation in a receptor‐dependent manner, which was associated with the downregulation of acyl‐coenzyme A cholesterol acyltransferase‐1 and CD36, as well as the up‐regulation of adenosine triphosphate‐binding cassette transporter A1. Our studies strongly suggest that incretin‐related agents have favorable effects on macrophage‐driven atherosclerosis in experimental animals.
Collapse
Affiliation(s)
- Tsutomu Hirano
- Department of Diabetes, Metabolism and Endocrinology Showa University School of Medicine Tokyo Japan
| | - Yusaku Mori
- Department of Diabetes, Metabolism and Endocrinology Showa University School of Medicine Tokyo Japan
| |
Collapse
|
15
|
Eight-year outcomes of a program for early prevention of cardiovascular events: a growth-curve analysis. J Cardiovasc Nurs 2016; 30:281-91. [PMID: 24717191 DOI: 10.1097/jcn.0000000000000141] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
BACKGROUND Early identification of cardiovascular diseases allows us to prevent the progression of these diseases. The Bale/Doneen Method, a prevention and treatment program for heart attacks and ischemic strokes, has been adopted nationally in primary care and specialty clinics. OBJECTIVES The main purpose of this study was to evaluate the effect of the Bale/Doneen Method on lipoproteins and carotid intima-media thickness (IMT) for cardiovascular disease prevention and reduction. A secondary purpose was to illustrate the use of latent growth-curve analysis in studying trajectories of clinical outcomes and biomarkers in individual patients over time. METHOD This retrospective analysis is based on 576 patients at a nurse-managed ambulatory clinic who received the heart attack prevention and treatment program from 2000 to 2008. All patients were white; 61% were men; mean age was 55.5 years. Outcome measures include hemoglobin A1c, fasting blood sugar, plaque burden score (PBS), high-density lipoprotein, low-density lipoprotein (LDL), mean carotid artery IMT, and lipoprotein-associated phospholipase A2 test results. Latent growth-curve analysis was used in modeling changes in these outcome measures. RESULTS On average, mean IMT score decreased by 0.01 per year (P < .001), PBS decreased by 0.17 per year (P < .001), LDL decreased by 5.19 per year (P < .001), and lipoprotein-associated phospholipase A2 decreased by 3.6 per year (P < .05). Hemoglobin A1c increased by 0.04 per year (P < .001). Significant sex and age differences in the initial level and/or rate of change of mean IMT, PBS, fasting blood sugar, high-density lipoprotein, and LDL scores were found. DISCUSSION The current findings suggest that the Bale/Doneen Method is effective in generating a positive effect on the atherosclerotic disease process by achieving regression of disease in the carotid arteries.
Collapse
|
16
|
Chan JW, Lewis DR, Petersen LK, Moghe PV, Uhrich KE. Amphiphilic macromolecule nanoassemblies suppress smooth muscle cell proliferation and platelet adhesion. Biomaterials 2016; 84:219-229. [PMID: 26828686 DOI: 10.1016/j.biomaterials.2015.12.033] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2015] [Revised: 12/25/2015] [Accepted: 12/30/2015] [Indexed: 12/19/2022]
Abstract
While the development of second- and third-generation drug-eluting stents (DES) have significantly improved patient outcomes by reducing smooth muscle cell (SMC) proliferation, DES have also been associated with an increased risk of late-stent thrombosis due to delayed re-endothelialization and hypersensitivity reactions from the drug-polymer coating. Furthermore, DES anti-proliferative agents do not counteract the upstream oxidative stress that triggers the SMC proliferation cascade. In this study, we investigate biocompatible amphiphilic macromolecules (AMs) that address high oxidative lipoprotein microenvironments by competitively binding oxidized lipid receptors and suppressing SMC proliferation with minimal cytotoxicity. To determine the influence of nanoscale assembly on proliferation, micelles and nanoparticles were fabricated from AM unimers containing a phosphonate or carboxylate end-group, a sugar-based hydrophobic domain, and a hydrophilic poly(ethylene glycol) domain. The results indicate that when SMCs are exposed to high levels of oxidized lipid stimuli, nanotherapeutics inhibit lipid uptake, downregulate scavenger receptor expression, and attenuate scavenger receptor gene transcription in SMCs, and thus significantly suppress proliferation. Although both functional end-groups were similarly efficacious, nanoparticles suppressed oxidized lipid uptake and scavenger receptor expression more effectively compared to micelles, indicating the relative importance of formulation characteristics (e.g., higher localized AM concentrations and nanotherapeutic stability) in scavenger receptor binding as compared to AM end-group functionality. Furthermore, AM coatings significantly prevented platelet adhesion to metal, demonstrating its potential as an anti-platelet therapy to treat thrombosis. Thus, AM micelles and NPs can effectively repress early stage SMC proliferation and thrombosis through non-cytotoxic mechanisms, highlighting the promise of nanomedicine for next-generation cardiovascular therapeutics.
Collapse
Affiliation(s)
- Jennifer W Chan
- Department of Biomedical Engineering, Rutgers University, 599 Taylor Road, Piscataway, NJ 08854, USA
| | - Daniel R Lewis
- Department of Chemical and Biochemical Engineering, Rutgers University, 98 Brett Road, Piscataway, NJ 08854, USA
| | - Latrisha K Petersen
- Department of Biomedical Engineering, Rutgers University, 599 Taylor Road, Piscataway, NJ 08854, USA
| | - Prabhas V Moghe
- Department of Biomedical Engineering, Rutgers University, 599 Taylor Road, Piscataway, NJ 08854, USA; Department of Chemical and Biochemical Engineering, Rutgers University, 98 Brett Road, Piscataway, NJ 08854, USA.
| | - Kathryn E Uhrich
- Department of Biomedical Engineering, Rutgers University, 599 Taylor Road, Piscataway, NJ 08854, USA; Department of Chemistry and Chemical Biology, Rutgers University, 610 Taylor Road, Piscataway, NJ 08854, USA.
| |
Collapse
|
17
|
Faig A, Petersen L, Moghe PV, Uhrich KE. Impact of hydrophobic chain composition on amphiphilic macromolecule antiatherogenic bioactivity. Biomacromolecules 2014; 15:3328-37. [PMID: 25070717 PMCID: PMC4157764 DOI: 10.1021/bm500809f] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2014] [Revised: 07/24/2014] [Indexed: 01/08/2023]
Abstract
Amphiphilic macromolecules (AMs) composed of sugar backbones modified with branched aliphatic chains and a poly(ethylene glycol) (PEG) tail can inhibit macrophage uptake of oxidized low-density lipoproteins (oxLDL), a major event underlying atherosclerosis development. Previous studies indicate that AM hydrophobic domains influence this bioactivity through interacting with macrophage scavenger receptors, which can contain basic and/or hydrophobic residues within their binding pockets. In this study, we compare two classes of AMs to investigate their ability to promote athero-protective potency via hydrogen-bonding or hydrophobic interactions with scavenger receptors. A series of ether-AMs, containing methoxy-terminated aliphatic arms capable of hydrogen-bonding, was synthesized. Compared to analogous AMs containing no ether moieties (alkyl-AMs), ether-AMs showed improved cytotoxicity profiles. Increasing AM hydrophobicity via incorporation of longer and/or alkyl-terminated hydrophobic chains yielded macromolecules with enhanced oxLDL uptake inhibition. These findings indicate that hydrophobic interactions and the length of AM aliphatic arms more significantly influence AM bioactivity than hydrogen-bonding.
Collapse
Affiliation(s)
- Allison Faig
- Department of Chemistry and Chemical Biology, Department
of Biomedical Engineering, and Department of Chemical and Biochemical
Engineering, Rutgers University, Piscataway, New Jersey 08854, United States
| | - Latrisha
K. Petersen
- Department of Chemistry and Chemical Biology, Department
of Biomedical Engineering, and Department of Chemical and Biochemical
Engineering, Rutgers University, Piscataway, New Jersey 08854, United States
| | - Prabhas V. Moghe
- Department of Chemistry and Chemical Biology, Department
of Biomedical Engineering, and Department of Chemical and Biochemical
Engineering, Rutgers University, Piscataway, New Jersey 08854, United States
| | - Kathryn E. Uhrich
- Department of Chemistry and Chemical Biology, Department
of Biomedical Engineering, and Department of Chemical and Biochemical
Engineering, Rutgers University, Piscataway, New Jersey 08854, United States
| |
Collapse
|
18
|
Li J, Zhao L, Yang T, Zeng YJ, Yang K. c-Ski inhibits autophagy of vascular smooth muscle cells induced by oxLDL and PDGF. PLoS One 2014; 9:e98902. [PMID: 24887307 PMCID: PMC4041777 DOI: 10.1371/journal.pone.0098902] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2014] [Accepted: 05/08/2014] [Indexed: 12/27/2022] Open
Abstract
Autophagy is increasingly being recognized as a critical determinant of vascular smooth muscle cell (VSMC) biology. Previously, we have demonstrated that c-Ski inhibits VSMC proliferation stimulated by transforming growth factor β (TGF-β), but it is not clear whether c-Ski has the similar protective role against other vascular injury factors and whether regulation of autophagy is involved in its protective effects on VSMC. Accordingly, in this study, rat aortic A10 VSMCs were treated with 40 µg/ml oxidized low-density lipoprotein (oxLDL) or 20 ng/ml platelet-derived growth factor (PDGF), both of which were autophagy inducers and closely related to the abnormal proliferation of VSMCs. Overexpression of c-Ski in A10 cells significantly suppressed the oxLDL- and PDGF- induced autophagy. This action of c-Ski resulted in inhibiting the cell proliferation, the decrease of contractile phenotype marker α-SMA expression while the increase of synthetic phenotype marker osteopontin expression stimulated by oxLDL or PDGF. Inversely, knockdown of c-Ski by RNAi enhanced the stimulatory effects of oxLDL or PDGF on A10 cell growth and phenotype transition. And further investigation found that inhibition of AKT phosphorylation to downregulate proliferating cell nuclear antigen (PCNA) expression, was involved in the regulation of autophagy and associated functions by c-Ski in the oxLDL- and PDGF-stimulated VSMCs. Collectively, c-Ski may play an important role in inhibiting autophagy to protect VSMCs against some harsh stress including oxLDL and PDGF.
Collapse
Affiliation(s)
- Jun Li
- Department of Cardiothoracic Surgery, Southwest Hospital, Third Military Medical University, Chongqing, China
- * E-mail:
| | - Li Zhao
- Department of Biochemistry and Molecular Biology, Third Military Medical University, Chongqing, China
| | - Ting Yang
- Department of Biochemistry and Molecular Biology, Third Military Medical University, Chongqing, China
| | - Yi-Jun Zeng
- Department of Biochemistry and Molecular Biology, Third Military Medical University, Chongqing, China
| | - Kang Yang
- Department of Cardiothoracic Surgery, Southwest Hospital, Third Military Medical University, Chongqing, China
| |
Collapse
|
19
|
Salabei JK, Hill BG. Implications of autophagy for vascular smooth muscle cell function and plasticity. Free Radic Biol Med 2013; 65:693-703. [PMID: 23938401 PMCID: PMC3859773 DOI: 10.1016/j.freeradbiomed.2013.08.003] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/27/2013] [Revised: 08/02/2013] [Accepted: 08/04/2013] [Indexed: 12/14/2022]
Abstract
Vascular smooth muscle cells (VSMCs) are fundamental in regulating blood pressure and distributing oxygen and nutrients to peripheral tissues. They also possess remarkable plasticity, with the capacity to switch to synthetic, macrophage-like, or osteochondrogenic phenotypes when cued by external stimuli. In arterial diseases such as atherosclerosis and restenosis, this plasticity seems to be critical and, depending on the disease context, can be deleterious or beneficial. Therefore, understanding the mechanisms regulating VSMC phenotype and survival is essential for developing new therapies for vascular disease as well as understanding how secondary complications due to surgical interventions develop. In this regard, the cellular process of autophagy is increasingly being recognized as a major player in vascular biology and a critical determinant of VSMC phenotype and survival. Although autophagy was identified in lesional VSMCs in the 1960s, our understanding of the implications of autophagy in arterial diseases and the stimuli promoting its activation in VSMCs is only now being elucidated. In this review, we highlight the evidence for autophagy occurring in VSMCs in vivo, elaborate on the stimuli and processes regulating autophagy, and discuss the current understanding of the role of autophagy in vascular disease.
Collapse
Affiliation(s)
- Joshua K Salabei
- Diabetes and Obesity Center, Institute of Molecular Cardiology, University of Louisville School of Medicine, Louisville, KY 40202, USA
| | - Bradford G Hill
- Diabetes and Obesity Center, Institute of Molecular Cardiology, University of Louisville School of Medicine, Louisville, KY 40202, USA; Department of Biochemistry and Molecular Biology, University of Louisville School of Medicine, Louisville, KY 40202, USA; Department of Physiology and Biophysics, University of Louisville School of Medicine, Louisville, KY 40202, USA.
| |
Collapse
|
20
|
Salabei JK, Hill BG. Mitochondrial fission induced by platelet-derived growth factor regulates vascular smooth muscle cell bioenergetics and cell proliferation. Redox Biol 2013; 1:542-51. [PMID: 24273737 PMCID: PMC3836280 DOI: 10.1016/j.redox.2013.10.011] [Citation(s) in RCA: 112] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2013] [Revised: 10/30/2013] [Accepted: 10/31/2013] [Indexed: 01/09/2023] Open
Abstract
Vascular smooth muscle cells (VSMCs) develop a highly proliferative and synthetic phenotype in arterial diseases. Because such phenotypic changes are likely integrated with the energetic state of the cell, we hypothesized that changes in cellular metabolism regulate VSMC plasticity. VSMCs were exposed to platelet-derived growth factor-BB (PDGF) and changes in mitochondrial morphology, proliferation, contractile protein expression, and mitochondrial metabolism were examined. Exposure of VSMCs to PDGF resulted in mitochondrial fragmentation and a 50% decrease in the abundance of mitofusin 2. Synthetic VSMCs demonstrated a 20% decrease in glucose oxidation, which was accompanied by an increase in fatty acid oxidation. Results of mitochondrial function assays in permeabilized cells showed few changes due to PDGF treatment in mitochondrial respiratory chain capacity and coupling. Treatment of VSMCs with Mdivi-1—an inhibitor of mitochondrial fission—inhibited PDGF-induced mitochondrial fragmentation by 50% and abolished increases in cell proliferation; however, it failed to prevent PDGF-mediated activation of autophagy and removal of contractile proteins. In addition, treatment with Mdivi-1 reversed changes in fatty acid and glucose oxidation associated with the synthetic phenotype. These results suggest that changes in mitochondrial morphology and bioenergetics underlie the hyperproliferative features of the synthetic VSMC phenotype, but do not affect the degradation of contractile proteins. Mitochondrial fragmentation occurring during the transition to the synthetic phenotype could be a therapeutic target for hyperproliferative vascular disorders. PDGF promotes mitochondrial fragmentation in vascular smooth muscle cells. PDGF increases metabolic reliance on fatty acids. Mitochondrial fragmentation regulates proliferation and bioenergetics. PDGF-induced bioenergetic and autophagic responses regulate de-differentiation.
Collapse
Key Words
- ADP, adenine dinucleotide phosphate
- ATP5A1, ATP synthase, H+ transporting, mitochondrial F1 complex, alpha subunit 1
- ATP5B, ATP synthase, H+ transporting, mitochondrial F1 complex, beta polypeptide
- Atherosclerosis
- CPT1, carnitine palmitoyl transferase 1
- DMEM, Delbucco's Eagle Modified Medium
- Drp1, dynamin-related protein 1
- EDTA, ethylenediaminetetraacetic acid
- EGTA, ethylene glycol tetraacetic acid
- Extracellular flux
- FBS, fetal bovine serum
- FCCP, Carbonyl cyanide 4-(trifluoromethoxy)phenylhydrazone
- Fis1, mitochondrial fission 1 protein
- Fusion
- HEPES, 4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid
- LC3, (microtubule-associated protein 1 light chain 3)
- MOPS, 3-(N-morpholino)propanesulfonic acid
- Metabolism
- NDUFB8, NADH dehydrogenase (ubiquinone) 1 beta subcomplex, 8
- NP-40, noniodet P40
- Opa1, optic atrophy 1
- Oxidative phosphorylation
- PCNA, proliferating cell nuclear antigen
- PDGF-BB, platelet-derived growth factor-BB
- PVDF, polyvinylidene fluoride
- Restenosis
- SDHB, succinate dehydrogenase subunit B
- SDS, sodium dodecyl sulfate
- TMPD, N,N,N′,N′-tetramethyl-p-phenylenediamine
- VSMC, vascular smooth muscle cells
Collapse
Affiliation(s)
- Joshua K. Salabei
- Diabetes and Obesity Center, Institute of Molecular Cardiology, University of Louisville School of Medicine, Louisville, KY 40202, USA
| | - Bradford G. Hill
- Diabetes and Obesity Center, Institute of Molecular Cardiology, University of Louisville School of Medicine, Louisville, KY 40202, USA
- Department of Biochemistry and Molecular Biology, University of Louisville School of Medicine, Louisville, KY 40202, USA
- Department of Physiology and Biophysics, University of Louisville School of Medicine, Louisville, KY 40202, USA
- Correspondence to: Diabetes and Obesity Center, Institute of Molecular Cardiology, University of Louisville School of Medicine, Delia Baxter Building, Room 404A, 580 South Preston Street, Louisville, KY 40202 United States. Tel.: +1 502 852 1015; fax: +1 502 852 3663.
| |
Collapse
|
21
|
Berra-Romani R, Avelino-Cruz JE, Raqeeb A, Della Corte A, Cinelli M, Montagnani S, Guerra G, Moccia F, Tanzi F. Ca²⁺-dependent nitric oxide release in the injured endothelium of excised rat aorta: a promising mechanism applying in vascular prosthetic devices in aging patients. BMC Surg 2013; 13 Suppl 2:S40. [PMID: 24266895 PMCID: PMC3851245 DOI: 10.1186/1471-2482-13-s2-s40] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Background Nitric oxide is key to endothelial regeneration, but it is still unknown whether endothelial cell (EC) loss results in an increase in NO levels at the wound edge. We have already shown that endothelial damage induces a long-lasting Ca2+ entry into surviving cells though connexin hemichannels (CxHcs) uncoupled from their counterparts on ruptured cells. The physiological outcome of injury-induced Ca2+ inflow is, however, unknown. Methods In this study, we sought to determine whether and how endothelial scraping induces NO production (NOP) in the endothelium of excised rat aorta by exploiting the NO-sensitive fluorochrome, DAF-FM diacetate and the Ca2+-sensitive fluorescent dye, Fura-2/AM. Results We demonstrated that injury-induced NOP at the lesion site is prevented in presence of the endothelial NO synthase inhibitor, L-NAME, and in absence of extracellular Ca2+. Unlike ATP-dependent NO liberation, the NO response to injury is insensitive to BTP-2, which selectively blocks store-operated Ca2+ inflow. However, injury-induced NOP is significantly reduced by classic gap junction blockers, and by connexin mimetic peptides specifically targeting Cx37Hcs, Cx40HCs, and Cx43Hcs. Moreover, disruption of caveolar integrity prevents injury-elicited NO signaling, but not the accompanying Ca2+ response. Conclusions The data presented provide the first evidence that endothelial scraping stimulates NO synthesis at the wound edge, which might both exert an immediate anti-thrombotic and anti-inflammatory action and promote the subsequent re-endothelialization.
Collapse
|
22
|
Abstract
Arginase metabolizes the semi-essential amino acid l-arginine to l-ornithine and urea. There are two distinct isoforms of arginase, arginase I and II, which are encoded by separate genes and display differences in tissue distribution, subcellular localization, and molecular regulation. Blood vessels express both arginase I and II but their distribution appears to be cell-, vessel-, and species-specific. Both isoforms of arginase are induced by numerous pathologic stimuli and contribute to vascular cell dysfunction and vessel wall remodeling in several diseases. Clinical and experimental studies have documented increases in the expression and/or activity of arginase I or II in blood vessels following arterial injury and in pulmonary and arterial hypertension, aging, and atherosclerosis. Significantly, pharmacological inhibition or genetic ablation of arginase in animals ameliorates abnormalities in vascular cells and normalizes blood vessel architecture and function in all of these pathological states. The detrimental effect of arginase in vascular remodeling is attributable to its ability to stimulate vascular smooth muscle cell and endothelial cell proliferation, and collagen deposition by promoting the synthesis of polyamines and l-proline, respectively. In addition, arginase adversely impacts arterial remodeling by directing macrophages toward an inflammatory phenotype. Moreover, the proliferative, fibrotic, and inflammatory actions of arginase in the vasculature are further amplified by its capacity to inhibit nitric oxide (NO) synthesis by competing with NO synthase for substrate, l-arginine. Pharmacologic or molecular approaches targeting specific isoforms of arginase represent a promising strategy in treating obstructive fibroproliferative vascular disease.
Collapse
Affiliation(s)
- William Durante
- Department of Medical Pharmacology and Physiology, University of Missouri-Columbia Columbia, MO, USA
| |
Collapse
|
23
|
Shah B, Oberweis B, Tummala L, Amoroso NS, Lobach I, Sedlis SP, Grossi E, Berger JS. Mean platelet volume and long-term mortality in patients undergoing percutaneous coronary intervention. Am J Cardiol 2013; 111:185-9. [PMID: 23102880 DOI: 10.1016/j.amjcard.2012.09.014] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2012] [Revised: 09/11/2012] [Accepted: 09/11/2012] [Indexed: 11/16/2022]
Abstract
Increased platelet activity is associated with adverse cardiovascular events. The mean platelet volume (MPV) correlates with platelet activity; however, the relation between the MPV and long-term mortality in patients undergoing percutaneous coronary intervention (PCI) is not well established. Furthermore, the role of change in the MPV over time has not been previously evaluated. We evaluated the MPV at baseline, 30 days, 60 days, 90 days, 1 year, 2 years, and 3 years after the procedure in 1,512 patients who underwent PCI. The speed of change in the MPV was estimated using the slope of linear regression. Mortality was determined by query of the Social Security Death Index. During a median of 8.7 years, mortality was 49.3% after PCI. No significant difference was seen in mortality when stratified by MPV quartile (first quartile, 50.1%; second quartile, 47.7%; third quartile, 51.3%; fourth quartile, 48.3%; p = 0.74). For the 839 patients with available data to determine a change in the MPV over time after PCI, mortality was 49.1% and was significantly greater in patients with an increase (52.9%) than in those with a decrease (44.2%) or no change (49.1%) in the MPV over time (p <0.0001). In conclusion, no association was found between the baseline MPV and long-term mortality in patients undergoing PCI. However, increased mortality was found when the MPV increased over time after PCI. Monitoring the MPV after coronary revascularization might play a role in risk stratification.
Collapse
Affiliation(s)
- Binita Shah
- Division of Cardiology, Department of Medicine, New York University School of Medicine and Veterans Affairs New York Harbor Health Care System, New York, New York, USA
| | | | | | | | | | | | | | | |
Collapse
|
24
|
Panyam J, Labhasetwar V. Biodegradable nanoparticles for drug and gene delivery to cells and tissue. Adv Drug Deliv Rev 2012. [DOI: 10.1016/j.addr.2012.09.023] [Citation(s) in RCA: 109] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
|
25
|
Tzeng BH, Chen YH, Huang CH, Lin SS, Lee KR, Chen CC. The Ca(v)3.1 T-type calcium channel is required for neointimal formation in response to vascular injury in mice. Cardiovasc Res 2012; 96:533-42. [PMID: 22886848 DOI: 10.1093/cvr/cvs257] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
AIMS Restenosis is an undesirable consequence following percutaneous vascular interventions. However, the current strategy for preventing restenosis is inadequate. The aim of this study was to investigate the role of low-voltage gated T-type calcium channels in regulating vascular smooth muscle cell (VSMC) proliferation during neointimal formation. METHODS AND RESULTS Wire injury of mice carotid arteries resulted in neointimal formation in the wild-type and Ca(v)3.2(-/-) but not Ca(v)3.1(-/-) mice, indicating a critical role of Ca(v)3.1 in neointimal formation. In addition, we found a significant increase of Ca(v)3.1 mRNA and protein in injured arteries. Ca(v)3.1 knockout or knockdown (shCa(v)3.1) reduced VSMC proliferation. Since T-channels are expressed predominantly in the G(1) and S phases in VSMCs, we examined whether an abnormal G(1)/S transition was the cause of the reduced cell proliferation in shCa(v)3.1 VSMCs. We found a disrupted expression of cyclin E in shCa(v)3.1 VSMCs, and calmodulin agonist CALP1 partially rescued the defective cell proliferation. Furthermore, we demonstrated that infusion of NNC55-0396, a selective T-channel blocker, inhibited neointimal formation in wild-type mice. CONCLUSION Ca(v)3.1 is required for VSMC proliferation during neointimal formation, and blocking of Ca(v)3.1 may be beneficial for preventing restenosis.
Collapse
Affiliation(s)
- Bing-Hsiean Tzeng
- Graduate Institute of Life Sciences, National Defense Medical Center, Taipei 11490, Taiwan
| | | | | | | | | | | |
Collapse
|
26
|
Alef MJ, Tzeng E, Zuckerbraun BS. Nitric oxide and nitrite-based therapeutic opportunities in intimal hyperplasia. Nitric Oxide 2012; 26:285-94. [PMID: 22504069 DOI: 10.1016/j.niox.2012.03.014] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2012] [Revised: 03/27/2012] [Accepted: 03/30/2012] [Indexed: 12/22/2022]
Abstract
Vascular intimal hyperplasia (IH) limits the long term efficacy of current surgical and percutaneous therapies for atherosclerotic disease. There are extensive changes in gene expression and cell signaling in response to vascular therapies, including changes in nitric oxide (NO) signaling. NO is well recognized for its vasoregulatory properties and has been investigated as a therapeutic treatment for its vasoprotective abilities. The circulating molecules nitrite (NO(2)(-)) and nitrate (NO(3)(-)), once thought to be stable products of NO metabolism, are now recognized as important circulating reservoirs of NO and represent a complementary source of NO in contrast to the classic L-arginine-NO-synthase pathway. Here we review the background of IH, its relationship with the NO and nitrite/nitrate pathways, and current and future therapeutic opportunities for these molecules.
Collapse
Affiliation(s)
- Matthew J Alef
- Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States
| | | | | |
Collapse
|
27
|
Johnston-Cox HA, Koupenova M, Ravid K. A2 adenosine receptors and vascular pathologies. Arterioscler Thromb Vasc Biol 2012; 32:870-8. [PMID: 22423039 PMCID: PMC5755359 DOI: 10.1161/atvbaha.112.246181] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2012] [Accepted: 02/14/2012] [Indexed: 12/20/2022]
Abstract
Cardiovascular disease, a leading cause of death and morbidity, is regulated, among various factors, by inflammation. The level of the metabolite adenosine is augmented under stress, including inflammatory, hypoxic, or injurious events. Adenosine has been shown to affect various physiological and pathological processes, largely through 1 or more of its 4 types of receptors: the A1 and A3 adenylyl cyclase inhibitory receptors and the A2A and A2B adenylyl cyclase stimulatory receptors. This article focuses on reviewing common and distinct effects of the 2 A2-type adenosine receptors on vascular disease and the mechanisms involved. Understanding the pathogenesis of vascular disease mediated by these receptors is important to the development of therapeutics and to the prevention and management of disease.
Collapse
Affiliation(s)
- Hillary A. Johnston-Cox
- Departments of Medicine and Biochemistry, Whitaker Cardiovascular Institute, and Evans Center for Interdisciplinary Biomedical Research, Boston University School of Medicine, Boston, MA 02118
| | - Milka Koupenova
- Departments of Medicine and Biochemistry, Whitaker Cardiovascular Institute, and Evans Center for Interdisciplinary Biomedical Research, Boston University School of Medicine, Boston, MA 02118
| | - Katya Ravid
- Departments of Medicine and Biochemistry, Whitaker Cardiovascular Institute, and Evans Center for Interdisciplinary Biomedical Research, Boston University School of Medicine, Boston, MA 02118
| |
Collapse
|
28
|
Wroblewska M, Juskiewicz J, Wiczkowski W. Physiological properties of beetroot crisps applied in standard and dyslipidaemic diets of rats. Lipids Health Dis 2011; 10:178. [PMID: 21995671 PMCID: PMC3221634 DOI: 10.1186/1476-511x-10-178] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2011] [Accepted: 10/14/2011] [Indexed: 11/24/2022] Open
Abstract
Background The objective of the present study was to examine the influence of adding various amounts beetroot (Beta vulgaris) crisps on gastrointestinal function, antioxidant status and blood and liver lipid profiles in a high fat diet-induced dyslipidaemic rat model; Results The intake of a dyslipidaemic diet increased the serum total cholesterol, total cholesterol-to-HDL-cholesterol ratio, atherogenic index, hepatic total cholesterol and triacylglycerols, suppressed production of short-chain fatty acids and decreased total antioxidant status and blood glutathione peroxidase activity. Oral administration of all tested amounts of beetroot crisps prevented the rise in serum total cholesterol and triacylglycerols levels. The treatment with the addition of 3% crisps also decreased hepatic total cholesterol level and activity of AST in serum. The experimental addition of crisps likewise resulted in a tendency towards a higher total SCFA pool and activity of glutathione peroxidase and a lower serum glucose level (p = 0.080, p = 0.061 and p = 0.067, respectively); Conclusions Results of the presented study suggest that the addition of beetroot crisps could alleviate metabolic changes in dyslipidaemic diet-administered rats.
Collapse
Affiliation(s)
- Monika Wroblewska
- Institute of Animal Reproduction and Food Research of the Polish Academy of Sciences in Olsztyn, Poland.
| | | | | |
Collapse
|
29
|
Abstract
The pathophysiology of post-PCI restenosis involves neointimal formation that consists of three phases: thrombosis (within 24 h), recruitment (3-8 days), and proliferation, which starts on day 8 of PCI. Various factors suggested to be predictors/risks for restenosis include C-reactive protein (CRP), inflammatory mediators (cytokines and adhesion molecules), oxygen radicals, advanced glycation end products (AGEs) and their receptors (RAGE), and soluble RAGE (sRAGE). The earlier noted factors produce thrombogenesis, vascular smooth muscle cell proliferation, and extracellular matrix formation. Statins have pleiotropic effects. Besides lowering serum cholesterol, they have various other biological effects including antiinflammatory, antithrombotic, CRP-lowering, antioxidant, antimitotic, and inhibition of smooth muscle cell proliferation. They inhibit matrix metalloproteinase and cyclooxygenase-2, lower AGEs, decrease expression of RAGE and increase levels of serum sRAGE. They also increase the synthesis of nitric oxide (NO) by increasing endothelial NO synthase expression and activity. Preprocedural statin therapy is known to reduce peri- and post-PCI myonecrosis and reduce the need for repeat revascularization. There is evidence that statin-eluting stents inhibit in-stent restenosis in animal models. It is concluded that because of the above attributes of statins, they are suitable candidates for reduction of post-PCI restenosis and post-PCI myonecrosis. The future directions for the use of statins in reduction of post-PCI restenosis and myonecrosis have been discussed.
Collapse
Affiliation(s)
- Kailash Prasad
- Department of Physiology, College of Medicine, University of Saskatchewan, Saskatoon, SK, Canada.
| |
Collapse
|
30
|
Sevigny LM, Austin KM, Zhang P, Kasuda S, Koukos G, Sharifi S, Covic L, Kuliopulos A. Protease-activated receptor-2 modulates protease-activated receptor-1-driven neointimal hyperplasia. Arterioscler Thromb Vasc Biol 2011; 31:e100-6. [PMID: 21940952 DOI: 10.1161/atvbaha.111.238261] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
OBJECTIVE Emerging evidence suggests that protease-activated receptors-1 and -2 (PAR1 and PAR2) can signal together in response to proteases found in the rapidly changing microenvironment of damaged blood vessels. However, it is unknown whether PAR1 and PAR2 promote or mitigate the hyperplastic response to arterial injury. Using cell-penetrating PAR1 pepducins and mice deficient in PAR1 or PAR2, we set out to determine the respective contributions of the receptors to hyperplasia and phenotypic modulation of smooth muscle cells (SMCs) in response to arterial injury. METHODS AND RESULTS SMCs were strongly activated by PAR1 stimulation, as evidenced by increased mitogenesis, mitochondrial activity, and calcium mobilization. The effects of chronic PAR1 stimulation following vascular injury were studied by performing carotid artery ligations in mice treated with the PAR1 agonist pepducin, P1pal-13. Histological analysis revealed that PAR1 stimulation caused striking hyperplasia, which was ablated in PAR1(-/-) and, surprisingly, PAR2(-/-) mice. P1pal-13 treatment yielded an expression pattern consistent with a dedifferentiated phenotype in carotid artery SMCs. Detection of PAR1-PAR2 complexes provided an explanation for the hyperplastic effects of the PAR1 agonist requiring the presence of both receptors. CONCLUSIONS We conclude that PAR2 regulates the PAR1 hyperplastic response to arterial injury leading to stenosis.
Collapse
Affiliation(s)
- Leila M Sevigny
- Hemostasis and Thrombosis Laboratory, Molecular Oncology Research Institute, Tufts Medical Center, 75 Kneeland St, Boston, MA 02111, USA
| | | | | | | | | | | | | | | |
Collapse
|
31
|
Joviliano EE, Piccinato CE, Dellalibera-Joviliano R, Moriya T, Évora PR. Inflammatory Markers and Restenosis in Peripheral Percutaneous Angioplasty With Intravascular Stenting: Current Concepts. Ann Vasc Surg 2011; 25:846-55. [DOI: 10.1016/j.avsg.2011.02.026] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2010] [Revised: 12/16/2010] [Accepted: 02/21/2011] [Indexed: 11/25/2022]
|
32
|
Peyton KJ, Yu Y, Yates B, Shebib AR, Liu XM, Wang H, Durante W. Compound C inhibits vascular smooth muscle cell proliferation and migration in an AMP-activated protein kinase-independent fashion. J Pharmacol Exp Ther 2011; 338:476-84. [PMID: 21566210 DOI: 10.1124/jpet.111.181784] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
6-[4-(2-Piperidin-1-yl-ethoxy)-phenyl]-3-pyridin-4-yl-pyrazolo[1,5-a] pyrimidine (compound C) is a cell-permeable pyrrazolopyrimidine derivative that acts as a potent inhibitor of AMP-activated protein kinase (AMPK). Although compound C is often used to determine the role of AMPK in various physiological processes, it also evokes AMPK-independent actions. In the present study, we investigated whether compound C influences vascular smooth muscle cell (SMC) function through the AMPK pathway. Treatment of rat aortic SMCs with compound C (0.02-10 μM) inhibited vascular SMC proliferation and migration in a concentration-dependent fashion. These actions of compound C were not mimicked or affected by silencing AMPKα expression or infecting SMCs with an adenovirus expressing a dominant-negative mutant of AMPK. In contrast, the pharmacological activator of AMPK 5-aminoimidazole-4-carboxamide-1-β-d-ribofuranoside inhibited the proliferation and migration of SMCs in a manner that was strictly dependent on AMPK activity. Flow cytometry experiments revealed that compound C arrested SMCs in the G(0)/G(1) phase of the cell cycle, and this was associated with a decrease in cyclin D1 and cyclin A protein expression and retinoblastoma protein phosphorylation and an increase in p21 protein expression. Finally, local perivascular delivery of compound C immediately after balloon injury of rat carotid arteries markedly attenuated neointima formation. These studies identify compound C as a novel AMPK-independent regulator of vascular SMC function that exerts inhibitory effects on SMC proliferation and migration and neointima formation after arterial injury. Compound C represents a potentially new therapeutic agent in treating and preventing occlusive vascular disease.
Collapse
Affiliation(s)
- Kelly J Peyton
- Department of Medical Pharmacology and Physiology, School of Medicine, University of Missouri, One Hospital Drive, Columbia, MO 65212, USA
| | | | | | | | | | | | | |
Collapse
|
33
|
Amran AA, Zakaria Z, Othman F, Das S, Al-Mekhlafi HM, Nordin NAMM. Changes in the vascular cell adhesion molecule-1, intercellular adhesion molecule-1 and c-reactive protein following administration of aqueous extract of piper sarmentosum on experimental rabbits fed with cholesterol diet. Lipids Health Dis 2011; 10:2. [PMID: 21214952 PMCID: PMC3024236 DOI: 10.1186/1476-511x-10-2] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2010] [Accepted: 01/09/2011] [Indexed: 01/30/2023] Open
Abstract
BACKGROUND Inflammation process plays an important role in the development of atherosclerosis. Hypercholesterolemia is one of the major risk factors for atherosclerosis. The present study aimed to evaluate the effect of aqueous extract of Piper sarmentosum (P.s) on inflammatory markers like vascular cell adhesion molecule-1 (VCAM-1), intercellular adhesion molecule-1 (ICAM-1), and C-reactive protein (CRP). METHODS Forty two male New Zealand white rabbits were divided equally into seven groups; (i) C- control group fed normal rabbit chow (ii) CH- cholesterol diet (1%cholesterol) (iii) X1- 1% cholesterol with water extract of P.s (62.5 mg/kg) (iv) X2- 1% cholesterol with water extract of P.s (125 mg/kg (v) X3- 1% cholesterol with water extract of P.s (250 mg/kg) (vi) X4- 1% cholesterol with water extract of P.s (500 mg/kg) and (vii) SMV group fed with 1% cholesterol supplemented with simvistatin drug (1.2 mg/kg). All animals were treated for 10 weeks. Blood serum was taken for observing the inflammatory markers at the beginning and end of the experiment. RESULTS Rabbits fed with 1% cholesterol diet (CH) showed significant increase in the level of VCAM-1, ICAM-1 and CRP compared to the C group. The levels of VCAM-1, ICAM-1 and CRP in the 1% cholesterol group and supplemented with P.s (500 mg/kg) were significantly reduced compared to the cholesterol group. Similar results were also reported with simvistatin group. CONCLUSION These results suggest that the supplementation of Piper sarmentosum extract could inhibit inflammatory markers which in turn could prevent atherosclerosis.
Collapse
Affiliation(s)
- Adel A Amran
- Department of Physiology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, Kuala Lumpur 50300, Malaysia
| | - Zaiton Zakaria
- Department of Physiology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, Kuala Lumpur 50300, Malaysia
| | - Faizah Othman
- Department of Anatomy, Faculty of Medicine, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, Kuala Lumpur 50300, Malaysia
| | - Srijit Das
- Department of Anatomy, Faculty of Medicine, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, Kuala Lumpur 50300, Malaysia
| | - Hesham M Al-Mekhlafi
- Department of Parasitology, Faculty of Medicine, University of Malaya, Kuala Lumpur 50603, Malaysia
| | - Nor-Anita MM Nordin
- Department of Physiology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, Kuala Lumpur 50300, Malaysia
| |
Collapse
|
34
|
Novel Coating Technologies of Drug Eluting Stents. ACTIVE IMPLANTS AND SCAFFOLDS FOR TISSUE REGENERATION 2011. [DOI: 10.1007/8415_2010_54] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
|
35
|
Boyle CJ, Lennon AB, Early M, Kelly DJ, Lally C, Prendergast PJ. Computational simulation methodologies for mechanobiological modelling: a cell-centred approach to neointima development in stents. PHILOSOPHICAL TRANSACTIONS. SERIES A, MATHEMATICAL, PHYSICAL, AND ENGINEERING SCIENCES 2010; 368:2919-35. [PMID: 20478914 PMCID: PMC2944394 DOI: 10.1098/rsta.2010.0071] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
The design of medical devices could be very much improved if robust tools were available for computational simulation of tissue response to the presence of the implant. Such tools require algorithms to simulate the response of tissues to mechanical and chemical stimuli. Available methodologies include those based on the principle of mechanical homeostasis, those which use continuum models to simulate biological constituents, and the cell-centred approach, which models cells as autonomous agents. In the latter approach, cell behaviour is governed by rules based on the state of the local environment around the cell; and informed by experiment. Tissue growth and differentiation requires simulating many of these cells together. In this paper, the methodology and applications of cell-centred techniques--with particular application to mechanobiology--are reviewed, and a cell-centred model of tissue formation in the lumen of an artery in response to the deployment of a stent is presented. The method is capable of capturing some of the most important aspects of restenosis, including nonlinear lesion growth with time. The approach taken in this paper provides a framework for simulating restenosis; the next step will be to couple it with more patient-specific geometries and quantitative parameter data.
Collapse
Affiliation(s)
- C. J. Boyle
- Trinity Centre for Bioengineering, School of Engineering, Trinity College Dublin, Dublin, Republic of Ireland
| | - A. B. Lennon
- Trinity Centre for Bioengineering, School of Engineering, Trinity College Dublin, Dublin, Republic of Ireland
| | - M. Early
- Trinity Centre for Bioengineering, School of Engineering, Trinity College Dublin, Dublin, Republic of Ireland
| | - D. J. Kelly
- Trinity Centre for Bioengineering, School of Engineering, Trinity College Dublin, Dublin, Republic of Ireland
| | - C. Lally
- Trinity Centre for Bioengineering, School of Engineering, Trinity College Dublin, Dublin, Republic of Ireland
- Department of Mechanical and Manufacturing Engineering, Dublin City University, Dublin, Republic of Ireland
| | - P. J. Prendergast
- Trinity Centre for Bioengineering, School of Engineering, Trinity College Dublin, Dublin, Republic of Ireland
| |
Collapse
|
36
|
Thrombotic and Fibrinolytic Factors in Acute Coronary Syndrome. South Med J 2010; 103:282. [DOI: 10.1097/smj.0b013e3181d40b8f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
37
|
Liu X, Cheng Y, Yang J, Krall TJ, Huo Y, Zhang C. An essential role of PDCD4 in vascular smooth muscle cell apoptosis and proliferation: implications for vascular disease. Am J Physiol Cell Physiol 2010; 298:C1481-8. [PMID: 20357187 DOI: 10.1152/ajpcell.00413.2009] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
It is well established that vascular smooth muscle cell (VSMC) apoptosis and proliferation are critical cellular events in a variety of human vascular diseases. However, the molecular mechanisms involved in controlling VSMC apoptosis and proliferation are still unclear. In the current study, we have found that programmed cell death 4 (PDCD4) is significantly downregulated in balloon-injured rat carotid arteries in vivo and in platelet-derived growth factor-stimulated VSMCs in vitro. Overexpression of PDCD4 via adenovirus (Ad-PDCD4) increases VSMC apoptosis in an apoptotic model induced by serum deprivation. In contrast, VSMC apoptosis is significantly decreased by knockdown of PDCD4 via its small interfering RNA. In the rat carotid arteries in vivo, VSMC apoptosis is increased by Ad-PDCD4. We have further identified that activator protein 1 is a downstream signaling molecule of PDCD4 that is associated with PDCD4-mediated effects on VSMC apoptosis. In addition, VSMC proliferation was inhibited by overexpression of PDCD4. The current study has identified, for the first time, that PDCD4 is an essential regulator of VSMC apoptosis and proliferation. The downregulation of PDCD4 expression in diseased vascular walls may be responsible for the imbalance of VSMC proliferation and apoptosis. The results indicate that PDCD4 may be a new therapeutic target in proliferative vascular diseases.
Collapse
Affiliation(s)
- Xiaojun Liu
- Department of Anesthesiology, New Jersey Medical School, University of Medicine and Dentistry of New Jersey, Newark, NJ, USA
| | | | | | | | | | | |
Collapse
|
38
|
Aronson D, Edelman ER. Revascularization for coronary artery disease in diabetes mellitus: angioplasty, stents and coronary artery bypass grafting. Rev Endocr Metab Disord 2010; 11:75-86. [PMID: 20221852 PMCID: PMC3076727 DOI: 10.1007/s11154-010-9135-3] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Patients with diabetes mellitus (DM) are prone to a diffuse and rapidly progressive form of atherosclerosis, which increases their likelihood of requiring revascularization. However, the unique pathophysiology of atherosclerosis in patients with DM modifies the response to arterial injury, with profound clinical consequences for patients undergoing percutaneous coronary intervention (PCI). Multiple studies have shown that DM is a strong risk factor for restenosis following successful balloon angioplasty or coronary stenting, with greater need for repeat revascularization and inferior clinical outcomes. Early data suggest that drug eluting stents reduce restenosis rates and the need for repeat revascularization irrespective of the diabetic state and with no significant reduction in hard clinical endpoints such as myocardial infarction and mortality. For many patients with 1- or 2-vessel coronary artery disease, there is little prognostic benefit from any intervention over optimal medical therapy. PCI with drug-eluting or bare metal stents is appropriate for patients who remain symptomatic with medical therapy. However, selection of the optimal myocardial revascularization strategy for patients with DM and multivessel coronary artery disease is crucial. Randomized trials comparing multivessel PCI with balloon angioplasty or bare metal stents to coronary artery bypass grafting (CABG) consistently demonstrated the superiority of CABG in patients with treated DM. In the setting of diabetes CABG had greater survival, fewer recurrent infarctions or need for re-intervention. Limited data suggests that CABG is superior to multivessel PCI even when drug-eluting stents are used. Several ongoing randomized trials are evaluating the long-term comparative efficacy of PCI with drug-eluting stents and CABG in patients with DM. Only further study will continue to unravel the mechanisms at play and optimal therapy in the face of the profoundly virulent atherosclerotic potential that accompanies diabetes mellitus.
Collapse
Affiliation(s)
- Doron Aronson
- Department of Cardiology, Rambam Medical Center and the Rappaport Research Institute, Technion, Israel Institute of Technology, Haifa, Israel
| | - Elazer R. Edelman
- Harvard–MIT Division of Health Sciences and Technology, and Cardiovascular Division, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Massachusetts Institute of Technology, Cambridge, MA, USA
| |
Collapse
|
39
|
Doran AC, Lehtinen AB, Meller N, Lipinski MJ, Slayton RP, Oldham SN, Skaflen MD, Yeboah J, Rich SS, Bowden DW, McNamara CA. Id3 is a novel atheroprotective factor containing a functionally significant single-nucleotide polymorphism associated with intima-media thickness in humans. Circ Res 2010; 106:1303-11. [PMID: 20185798 DOI: 10.1161/circresaha.109.210294] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
RATIONALE The gene encoding the helix-loop-helix transcription factor Id3 (inhibitor of differentiation-3) is located within atherosclerosis susceptibility loci of both mice and humans, yet its influence on atherosclerosis is not known. OBJECTIVE The present study sought to determine whether polymorphisms in the ID3 gene were associated with indices of atherosclerosis in humans and if loss of Id3 function modulated atherogenesis in mice. METHODS AND RESULTS Six tagging single-nucleotide polymorphisms (SNPs) (tagSNPs) in the human ID3 gene were assessed in participants of the Diabetes Heart Study. One tagSNP, rs11574, was independently associated with carotid intima-media thickness (IMT). The human ID3 variant at rs11574 results in an alanine to threonine substitution in the C terminus. To determine the effect of this polymorphism on the basic function of Id3, site-directed mutagenesis of the human ID3 gene at rs11574 was performed. Results demonstrated a significant reduction in coimmunoprecipitation of the known E-protein partner, E12, with Id3 when it contains the sequence encoded by the risk allele (Id3105T). Further, Id3105T had an attenuated ability to modulate E12-mediated transcriptional activation compared to Id3 containing the ancestral allele (Id3105A). Microarray analysis of vascular smooth muscle cells from WT and Id3(-/-) mice revealed significant modulation of multiple gene pathways implicated in atherogenesis. Moreover, Id3(-/-)ApoE(-/-) mice developed significantly more atherosclerosis in response to 32 weeks of Chow or Western diet feeding than Id3(+/+)ApoE(-/-) mice. CONCLUSIONS Taken together, results provide novel evidence that Id3 is an atheroprotective factor and link a common SNP in the human ID3 gene to loss of Id3 function and increased IMT.
Collapse
Affiliation(s)
- Amanda C Doran
- Cardiovascular Research Center, University of Virginia, Charlottesville, VA 22908, USA
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
40
|
Valgimigli M, Airoldi F, Zimarino M. Stent choice in primary percutaneous coronary intervention: drug-eluting stents or bare metal stents? J Cardiovasc Med (Hagerstown) 2010; 10 Suppl 1:S17-26. [PMID: 19851216 DOI: 10.2459/01.jcm.0000362040.25767.f5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The controversial choice between bare metal stents and drug-eluting stents (DES) in primary percutaneous coronary intervention (PCI) seems to be driven by a growing body of evidence. Although evidence supporting the use of DES in the setting of ST-segment elevation myocardial infarction (STEMI) has been demonstrated, including a lower target vessel revascularization (TVR) rate without increased mortality, at present the proportion of DES implants in STEMI patients is low. This may be due to higher costs of DES, cultural issues, lack of concerns about restenosis in STEMI, lack of information on patient bleeding risk and the need for surgery within a limited time. In addition, initial enthusiasm about the efficacy of DES in reducing restenosis is now decreasing as a result of the safety concerns regarding in-stent thrombosis. Moreover, DES requires long-term dual antiplatelet therapy (DAT), which may pose problems in patients prone to bleeding or in candidates for elective surgery. Nevertheless, benefits associated with use of DES include significantly lower TVR rates without remarkable adverse effects in terms of death and myocardial infarction. Data about the efficacy of DES are still limited to 1-year follow-up in most trials. Uncoated stents permit early arterial wall healing, requiring a shorter duration of DAT and are potentially associated with a reduced risk of thrombus formation at long-term follow-up. Importantly, however, this potential late threat has not been confirmed in recent data from the limited number of studies with longer than 2-years follow-up. Anatomical features and individual risk profiles can sometimes help in the choice of the most suitable type of stent. In conclusion, stent choice in primary PCI cannot be standardized for all patients and appears to be influenced by various factors that need to be considered to provide better revascularization in terms of both efficacy and safety.
Collapse
Affiliation(s)
- Marco Valgimigli
- Department of Cardiology, University of Ferrara, Cardiovascular Institute, Arcispedale S Anna, Italy.
| | | | | |
Collapse
|
41
|
Leigh Perkins LE. Preclinical Models of Restenosis and Their Application in the Evaluation of Drug-Eluting Stent Systems. Vet Pathol 2010; 47:58-76. [DOI: 10.1177/0300985809352978] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Coronary arterial disease (CAD) is the leading cause of death in the United States, the European Union, and Canada. Percutaneous coronary intervention (PCI) has revolutionized the treatment of CAD, and it is the advent of drug-eluting stent (DES) systems that has effectively allayed much of the challenge of restenosis that has plagued the success of PCI through its 30-year history. However, DES systems have not been a panacea: There yet remain the challenges associated with interventions involving bare metallic stents as well as newly arisen concerns related to the application of DES systems. To effectively address these novel and ongoing issues, animal models are relied on both to project the safety and efficacy of endovascular devices and to provide insight into the pathophysiology underlying the vascular response to injury and mechanisms of restenosis. In this review, preclinical models of restenosis are presented, and their application and limitation in the evaluation of device-based interventional technologies for the treatment of CAD are discussed.
Collapse
|
42
|
Moussallem MD, Olenych SG, Scott SL, Keller TCS, Schlenoff JB. Smooth muscle cell phenotype modulation and contraction on native and cross-linked polyelectrolyte multilayers. Biomacromolecules 2009; 10:3062-8. [PMID: 19817347 PMCID: PMC2775193 DOI: 10.1021/bm9007309] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2009] [Revised: 09/15/2009] [Indexed: 01/26/2023]
Abstract
Smooth muscle cells convert between a motile, proliferative "synthetic" phenotype and a sessile, "contractile" phenotype. The ability to manipulate the phenotype of aortic smooth muscle cells with thin biocompatible polyelectrolyte multilayers (PEMUs) with common surface chemical characteristics but varying stiffness was investigated. The stiffness of (PAH/PAA) PEMUs was varied by heating to form covalent amide bond cross-links between the layers. Atomic force microscopy (AFM) showed that cross-linked PEMUs were thinner than those that were not cross-linked. AFM nanoindentation demonstrated that the Young's modulus ranged from 6 MPa for hydrated native PEMUs to more than 8 GPa for maximally cross-linked PEMUs. Rat aortic A7r5 smooth muscle cells cultured on native PEMUs exhibited morphology and motility of synthetic cells and expression of the synthetic phenotype markers vimentin, tropomyosin 4, and nonmuscle myosin heavy chain IIB (nmMHCIIB). In comparison, cells cultured on maximally cross-linked PEMUs exhibited the phenotype markers calponin, smooth muscle myosin heavy chain (smMHC), myocardin, transgelin, and smooth muscle alpha-actin (smActin) that are characteristic of the smooth muscle "contractile" phenotype. Consistent with those cells being "contractile", A7r5 cells grown on cross-linked PEMUs produced contractile force when stimulated with a Ca(2+) ionophore.
Collapse
|
43
|
Aronson D. Inflammatory markers: linking unstable plaques to coronary event, an interventional perspective. ACTA ACUST UNITED AC 2009; 6:110-8. [PMID: 16146903 DOI: 10.1080/14628840410030522] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Abundant data links inflammatory mechanisms to atheromatous plaque destabilization leading to plaque rupture and coronary events. The discovery of inflammatory cells and inflammatory mediators within atherosclerotic plaques prone to rupture led to a series of studies demonstrating an association between various markers of inflammation and future coronary events. Inflammatory markers have also been used in patients undergoing coronary angioplasty in an attempt to predict restenosis and risk for post-procedural coronary events. This review article provides an overview on the potential use of inflammatory markers in the context of coronary interventions.
Collapse
Affiliation(s)
- Doron Aronson
- Department of Cardiology, Rambam Medical Center, Haifa, Israel.
| |
Collapse
|
44
|
Breen DM, Chan KK, Dhaliwall JK, Ward MR, Al Koudsi N, Lam L, De Souza M, Ghanim H, Dandona P, Stewart DJ, Bendeck MP, Giacca A. Insulin increases reendothelialization and inhibits cell migration and neointimal growth after arterial injury. Arterioscler Thromb Vasc Biol 2009; 29:1060-6. [PMID: 19359661 DOI: 10.1161/atvbaha.109.185447] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
OBJECTIVE Insulin has both growth-promoting and protective vascular effects in vitro, however the predominant effect in vivo is unclear. We investigated the effects of insulin in vivo on neointimal growth after arterial injury. METHODS AND RESULTS Rats were given subcutaneous control (C) or insulin implants (3U/d;I) 3 days before arterial (carotid or aortic) balloon catheter injury. Normoglycemia was maintained by oral glucose and, after surgery, by intraperitoneal glucose infusion (saline in C). Insulin decreased intimal area (P<0.01) but did not change intimal cell proliferation or apoptosis. However, insulin inhibited cell migration into the intima (P<0.01) and increased expression of smooth muscle cell (SMC) differentiation markers (P<0.05). Insulin also increased reendothelialization (P<0.01) and the number of circulating progenitor cells (P<0.05). CONCLUSIONS These results are the first demonstration that insulin has a protective effect on both SMC and endothelium in vivo, resulting in inhibition of neointimal growth after vessel injury.
Collapse
Affiliation(s)
- Danna M Breen
- Department of Physiology, University of Toronto. Ontario, Canada
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
45
|
Peyton KJ, Ensenat D, Azam MA, Keswani AN, Kannan S, Liu XM, Wang H, Tulis DA, Durante W. Arginase promotes neointima formation in rat injured carotid arteries. Arterioscler Thromb Vasc Biol 2009; 29:488-94. [PMID: 19164802 DOI: 10.1161/atvbaha.108.183392] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
OBJECTIVE Arginase stimulates the proliferation of cultured vascular smooth muscle cells (VSMCs); however, the influence of arginase on VSMC growth in vivo is not known. This study investigated the impact of arginase on cell cycle progression and neointima formation after experimental arterial injury. METHODS AND RESULTS Balloon injury of rat carotid arteries resulted in a sustained increase in arginase activity in the vessel wall and the induction of arginase I protein in both the media and neointima of injured vessels. Furthermore, local perivascular application of the potent and selective arginase inhibitors S-(2-boronoethyl)-L-cysteine (BEC) or N(G)-hydroxy-nor-L-arginine (L-OHNA) immediately after injury markedly attenuated medial and neointimal DNA synthesis and neointima formation. Substantial arginase I protein and arginase activity was also detected in rat cultured aortic VSMCs. Moreover, treatment of VSMCs with BEC or L-OHNA, or knockdown of arginase I protein, arrested cells in the G(0)/G(1) phase of the cell cycle and induced the expression of the cyclin-dependent protein kinase inhibitor, p21. CONCLUSIONS This study demonstrates that arginase is essential for VSMCs to enter the cell cycle and that arginase I contributes to the remodeling response after arterial injury. Arginase I represents a potentially new therapeutic target for the treatment of vasculoproliferative disorders.
Collapse
Affiliation(s)
- Kelly J Peyton
- Department of Medical Pharmacology and Physiology, School of Medicine, University of Missouri-Columbia, Columbia, MO 65212, USA
| | | | | | | | | | | | | | | | | |
Collapse
|
46
|
Deconinck E, Sohier J, De Scheerder I, Van den Mooter G. Pharmaceutical aspects of drug eluting stents. J Pharm Sci 2008; 97:5047-60. [DOI: 10.1002/jps.21356] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
|
47
|
Owens CD, Ho KJ, Conte MS. Risk Factors for Failure of Lower-Extremity Revascularization Procedures: Are They Different for Bypass and Percutaneous Procedures? Semin Vasc Surg 2008; 21:143-53. [DOI: 10.1053/j.semvascsurg.2008.05.007] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
48
|
Proctor BM, Jin X, Lupu TS, Muglia LJ, Semenkovich CF, Muslin AJ. Requirement for p38 mitogen-activated protein kinase activity in neointima formation after vascular injury. Circulation 2008; 118:658-66. [PMID: 18645058 DOI: 10.1161/circulationaha.107.734848] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND Angioplasty and stent delivery are performed to treat atherosclerotic vascular disease but often cause deleterious neointimal lesion formation. Previously, growth factor receptor-bound protein 2 (Grb2), an intracellular linker protein, was shown to be essential for neointima formation and for p38 mitogen-activated protein kinase (MAPK) activation in vascular smooth muscle cells (SMCs). In this study, the role of vascular SMC p38alpha MAPK in neointimal development was examined. METHODS AND RESULTS Compound transgenic mice were generated with doxycycline-inducible SMC-specific expression of dominant-negative p38alpha MAPK (DN-p38alpha). Doxycycline treatment resulted in the expression of DN-p38alpha mRNA and protein in transgenic arteries. Doxycycline-treated compound transgenic mice were resistant to neointima formation 21 days after carotid injury and showed reduced arterial p38 MAPK activation. To explore the mechanism by which p38alpha MAPK promotes neointima formation, an in vitro SMC culture system was used. Inhibition of p38alpha MAPK in cultured SMCs by treatment with SB202190 or small interfering RNA blocked platelet-derived growth factor-induced SMC proliferation, DNA replication, phosphorylation of the retinoblastoma protein, and induction of minichromosome maintenance protein 6. CONCLUSIONS SMC p38alpha MAPK activation is required for neointima formation, perhaps because of its ability to promote retinoblastoma protein phosphorylation and minichromosome maintenance protein 6 expression.
Collapse
Affiliation(s)
- Brandon M Proctor
- Center for Cardiovascular Research, Department of Medicine, Washington University, St. Louis, School of Medicine, ST. Louis, Mo., USA
| | | | | | | | | | | |
Collapse
|
49
|
Chi RJ, Simon AR, Bienkiewicz EA, Felix A, Keller TCS. Smooth muscle titin Zq domain interaction with the smooth muscle alpha-actinin central rod. J Biol Chem 2008; 283:20959-67. [PMID: 18519573 DOI: 10.1074/jbc.m709621200] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Actin-myosin II filament-based contractile structures in striated muscle, smooth muscle, and nonmuscle cells contain the actin filament-cross-linking protein alpha-actinin. In striated muscle Z-disks, alpha-actinin interacts with N-terminal domains of titin to provide a structural linkage crucial for the integrity of the sarcomere. We previously discovered a long titin isoform, originally smitin, hereafter sm-titin, in smooth muscle and demonstrated that native sm-titin interacts with C-terminal EF hand region and central rod R2-R3 spectrin-like repeat region sites in alpha-actinin. Reverse transcription-PCR analysis of RNA from human adult smooth muscles and cultured rat smooth muscle cells and Western blot analysis with a domain-specific antibody presented here revealed that sm-titin contains the titin gene-encoded Zq domain that may bind to the alpha-actinin R2-R3 central rod domain as well as Z-repeat domains that bind to the EF hand region. We investigated whether the sm-titin Zq domain binds to alpha-actinin R2 and R3 spectrin repeat-like domain loops that lie in proximity with two-fold symmetry on the surface of the central rod. Mutations in alpha-actinin R2 and R3 domain loop residues decreased interaction with expressed sm-titin Zq domain in glutathione S-transferase pull-down and solid phase binding assays. Alanine mutation of a region of the Zq domain with high propensity for alpha-helix formation decreased apparent Zq domain dimer formation and decreased Zq interaction with the alpha-actinin R2-R3 region in surface plasmon resonance assays. We present a model in which two sm-titin Zq domains interact with each other and with the two R2-R3 sites in the alpha-actinin central rod.
Collapse
Affiliation(s)
- Richard J Chi
- Department of Biological Science, College of Medicine, Florida State University, Tallahassee, FL 32306, USA
| | | | | | | | | |
Collapse
|
50
|
Rudolph T, Schaps KP, Steven D, Koester R, Rudolph V, Berger J, Terres W, Meinertz T, Kaehler J. Interleukin-3 is elevated in patients with coronary artery disease and predicts restenosis after percutaneous coronary intervention. Int J Cardiol 2008; 132:392-7. [PMID: 18378332 DOI: 10.1016/j.ijcard.2007.12.060] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2007] [Revised: 10/24/2007] [Accepted: 12/18/2007] [Indexed: 11/25/2022]
Abstract
BACKGROUND Interleukin-3 (IL-3) synthesized by activated T-lymphocytes is a mediator in chronic inflammation and is suspected to promote atherosclerosis. Since there is no data on IL-3 in patients with coronary artery disease (CAD) available, we compared IL-3 concentrations in different subsets of patients with CAD to healthy control patients. METHODS 205 consecutive patients with CAD, 136 with stable angina and 69 with acute coronary syndrome (ACS) undergoing percutaneous coronary intervention, 61 patients with asymptomatic CAD and 41 patients with normal coronary arteries were investigated. Serum concentrations of IL-3 and hs-CRP were assessed at baseline and after 6 weeks, 6, and 12 months. RESULTS In patients undergoing coronary angioplasty, IL-3 was detectable more frequently than in those with asymptomatic CAD or without CAD, 21 vs. 8%, p=0.02, and 21 vs. 1%, p<0.001, respectively. Patients undergoing coronary angioplasty who developed symptomatic restenosis more frequently had detectable IL-3 levels than patients without restenosis, 45 vs. 17%, p=0.02. IL-3 was the only independent predictor for restenosis in a multivariate analysis. Hs-CRP was significantly elevated in patients with ACS, 230+/-170 mg/l vs. 100+/-140 mg/l, p=0.02, but did not correlate with IL-3 concentrations at any time. CONCLUSION IL-3, an important regulator of chronic inflammation, is elevated in patients with CAD, particularly in symptomatic patients undergoing percutaneous coronary intervention. Furthermore, high IL-3 concentrations were found to be predictive of symptomatic restenosis.
Collapse
Affiliation(s)
- Tanja Rudolph
- Department of Cardiology, University Hospital Hamburg, Hamburg, Germany
| | | | | | | | | | | | | | | | | |
Collapse
|