1
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Yan M, Zheng H, Yan R, Lang L, Wang Q, Xiao B, Zhang D, Lin H, Jia Y, Pan S, Chen Q. Vinculin Identified as a Potential Biomarker in Hand-Arm Vibration Syndrome Based on iTRAQ and LC-MS/MS-Based Proteomic Analysis. J Proteome Res 2023; 22:2714-2726. [PMID: 37437295 PMCID: PMC10408646 DOI: 10.1021/acs.jproteome.3c00277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Indexed: 07/14/2023]
Abstract
Local vibration can induce vascular injuries, one example is the hand-arm vibration syndrome (HAVS) caused by hand-transmitted vibration (HTV). Little is known about the molecular mechanism of HAVS-induced vascular injuries. Herein, the iTRAQ (isobaric tags for relative and absolute quantitation) followed by liquid chromatography-tandem mass spectrometry (LC-MS/MS) proteomics approach was applied to conduct the quantitative proteomic analysis of plasma from specimens with HTV exposure or HAVS diagnosis. Overall, 726 proteins were identified in iTRAQ. 37 proteins upregulated and 43 downregulated in HAVS. Moreover, 37 upregulated and 40 downregulated when comparing severe HAVS and mild HAVS. Among them, Vinculin (VCL) was found to be downregulated in the whole process of HAVS. The concentration of vinculin was further verified by ELISA, and the results suggested that the proteomics data was reliable. Bioinformative analyses were used, and those proteins mainly engaged in specific biological processes like binding, focal adhesion, and integrins. The potential of vinculin application in HAVS diagnosis was validated by the receiver operating characteristic curve.
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Affiliation(s)
- Maosheng Yan
- Guangdong
Province Hospital for Occupational Disease Prevention and Treatment, Guangdong Provincial Key Laboratory of Occupational
Disease Prevention and Treatment, Guangzhou, Guangdong 510230, China
- Department
of Public Health, Guangzhou Medical University, Guangzhou, Guangdong 510000, China
| | - Hanjun Zheng
- Guangdong
Province Hospital for Occupational Disease Prevention and Treatment, Guangdong Provincial Key Laboratory of Occupational
Disease Prevention and Treatment, Guangzhou, Guangdong 510230, China
- Department
of Public Health, Guangzhou Medical University, Guangzhou, Guangdong 510000, China
| | - Rong Yan
- The
Centers for Disease Control and Prevention of Haizhu District, Guangzhou, Guangdong 510230, China
| | - Li Lang
- Guangdong
Province Hospital for Occupational Disease Prevention and Treatment, Guangdong Provincial Key Laboratory of Occupational
Disease Prevention and Treatment, Guangzhou, Guangdong 510230, China
| | - Qia Wang
- Guangdong
Province Hospital for Occupational Disease Prevention and Treatment, Guangdong Provincial Key Laboratory of Occupational
Disease Prevention and Treatment, Guangzhou, Guangdong 510230, China
| | - Bin Xiao
- Guangdong
Province Hospital for Occupational Disease Prevention and Treatment, Guangdong Provincial Key Laboratory of Occupational
Disease Prevention and Treatment, Guangzhou, Guangdong 510230, China
| | - Danying Zhang
- Guangdong
Province Hospital for Occupational Disease Prevention and Treatment, Guangdong Provincial Key Laboratory of Occupational
Disease Prevention and Treatment, Guangzhou, Guangdong 510230, China
| | - Hansheng Lin
- Guangdong
Province Hospital for Occupational Disease Prevention and Treatment, Guangdong Provincial Key Laboratory of Occupational
Disease Prevention and Treatment, Guangzhou, Guangdong 510230, China
| | - Yanxia Jia
- Department
of Public Health, Shanxi Medical University, Tai Yuan, Shanxi 030000, China
| | - Siyu Pan
- Guangdong
Province Hospital for Occupational Disease Prevention and Treatment, Guangdong Provincial Key Laboratory of Occupational
Disease Prevention and Treatment, Guangzhou, Guangdong 510230, China
- Department
of Public Health, Guangdong Pharmaceutical
University, Guangzhou, Guangdong 510230, China
| | - Qingsong Chen
- Department
of Public Health, Guangdong Pharmaceutical
University, Guangzhou, Guangdong 510230, China
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2
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Rezvanian P, Álvarez-López A, Tabraue-Rubio R, Daza R, Colchero L, Elices M, Guinea GV, González-Nieto D, Pérez-Rigueiro J. Modulation of Cell Response through the Covalent Binding of Fibronectin to Titanium Substrates. J Funct Biomater 2023; 14:342. [PMID: 37504837 PMCID: PMC10381834 DOI: 10.3390/jfb14070342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 06/16/2023] [Accepted: 06/26/2023] [Indexed: 07/29/2023] Open
Abstract
Titanium (Ti-6Al-4V) substrates were functionalized through the covalent binding of fibronectin, and the effect of the existence of this extracellular matrix protein on the surface of the material was assessed by employing mesenchymal stem cell (MSC) cultures. The functionalization process comprised the usage of the activation vapor silanization (AVS) technique to deposit a thin film with a high surface density of amine groups on the material, followed by the covalent binding of fibronectin to the amine groups using the N-(3-dimethylaminopropyl)-N'-ethylcarbodiimide hydrochloride/N-hydroxysuccinimide (EDC/NHS) crosslinking chemistry. The biological effect of the fibronectin on murine MSCs was assessed in vitro. It was found that functionalized samples not only showed enhanced initial cell adhesion compared with bare titanium, but also a three-fold increase in the cell area, reaching values comparable to those found on the polystyrene controls. These results provide compelling evidence of the potential to modulate the response of the organism to an implant through the covalent binding of extracellular matrix proteins on the prosthesis.
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Affiliation(s)
- Parsa Rezvanian
- Center for Biomedical Technology, Universidad Politécnica de Madrid, Pozuelo de Alarcón, 28223 Madrid, Spain
- Departamento de Ciencia de Materiales, ETSI Caminos, Canales y Puertos, Universidad Politécnica de Madrid, 28040 Madrid, Spain
- Department of Animal Biotechnology, Cell Science Research Center, Royan Institute for Biotechnology, ACECR, Isfahan 8159358686, Iran
| | - Aroa Álvarez-López
- Center for Biomedical Technology, Universidad Politécnica de Madrid, Pozuelo de Alarcón, 28223 Madrid, Spain
- Departamento de Ciencia de Materiales, ETSI Caminos, Canales y Puertos, Universidad Politécnica de Madrid, 28040 Madrid, Spain
| | - Raquel Tabraue-Rubio
- Center for Biomedical Technology, Universidad Politécnica de Madrid, Pozuelo de Alarcón, 28223 Madrid, Spain
- Bioactive Surfaces S.L. C/Puerto de Navacerrada 18, Galapagar, 28260 Madrid, Spain
| | - Rafael Daza
- Center for Biomedical Technology, Universidad Politécnica de Madrid, Pozuelo de Alarcón, 28223 Madrid, Spain
- Departamento de Ciencia de Materiales, ETSI Caminos, Canales y Puertos, Universidad Politécnica de Madrid, 28040 Madrid, Spain
| | - Luis Colchero
- Bioactive Surfaces S.L. C/Puerto de Navacerrada 18, Galapagar, 28260 Madrid, Spain
| | - Manuel Elices
- Departamento de Ciencia de Materiales, ETSI Caminos, Canales y Puertos, Universidad Politécnica de Madrid, 28040 Madrid, Spain
| | - Gustavo V Guinea
- Center for Biomedical Technology, Universidad Politécnica de Madrid, Pozuelo de Alarcón, 28223 Madrid, Spain
- Departamento de Ciencia de Materiales, ETSI Caminos, Canales y Puertos, Universidad Politécnica de Madrid, 28040 Madrid, Spain
- Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 28029 Madrid, Spain
- Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Calle Prof. Martín Lagos s/n, 28040 Madrid, Spain
| | - Daniel González-Nieto
- Center for Biomedical Technology, Universidad Politécnica de Madrid, Pozuelo de Alarcón, 28223 Madrid, Spain
- Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 28029 Madrid, Spain
- Departamento de Tecnología Fotónica y Bioingeniería, ETSI Telecomunicaciones, Universidad Politécnica de Madrid, 28040 Madrid, Spain
| | - José Pérez-Rigueiro
- Center for Biomedical Technology, Universidad Politécnica de Madrid, Pozuelo de Alarcón, 28223 Madrid, Spain
- Departamento de Ciencia de Materiales, ETSI Caminos, Canales y Puertos, Universidad Politécnica de Madrid, 28040 Madrid, Spain
- Bioactive Surfaces S.L. C/Puerto de Navacerrada 18, Galapagar, 28260 Madrid, Spain
- Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 28029 Madrid, Spain
- Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Calle Prof. Martín Lagos s/n, 28040 Madrid, Spain
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3
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Liu S, Lin Z. Vascular Smooth Muscle Cells Mechanosensitive Regulators and Vascular Remodeling. J Vasc Res 2021; 59:90-113. [PMID: 34937033 DOI: 10.1159/000519845] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Accepted: 09/23/2021] [Indexed: 11/19/2022] Open
Abstract
Blood vessels are subjected to mechanical loads of pressure and flow, inducing smooth muscle circumferential and endothelial shear stresses. The perception and response of vascular tissue and living cells to these stresses and the microenvironment they are exposed to are critical to their function and survival. These mechanical stimuli not only cause morphological changes in cells and vessel walls but also can interfere with biochemical homeostasis, leading to vascular remodeling and dysfunction. However, the mechanisms underlying how these stimuli affect tissue and cellular function, including mechanical stimulation-induced biochemical signaling and mechanical transduction that relies on cytoskeletal integrity, are unclear. This review focuses on signaling pathways that regulate multiple biochemical processes in vascular mesangial smooth muscle cells in response to circumferential stress and are involved in mechanosensitive regulatory molecules in response to mechanotransduction, including ion channels, membrane receptors, integrins, cytoskeletal proteins, nuclear structures, and cascades. Mechanoactivation of these signaling pathways is closely associated with vascular remodeling in physiological or pathophysiological states.
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Affiliation(s)
- Shangmin Liu
- Ji Hua Institute of Biomedical Engineering Technology, Ji Hua Laboratory, Foshan, China, .,Medical Research Center, Guangdong Academy of Medical Sciences, Guangdong General Hospital, Guangzhou, China,
| | - Zhanyi Lin
- Ji Hua Institute of Biomedical Engineering Technology, Ji Hua Laboratory, Foshan, China.,Institute of Geriatric Medicine, Guangdong Academy of Medical Sciences, Guangdong General Hospital, Guangzhou, China
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Vaidyanathan K, Wang C, Krajnik A, Yu Y, Choi M, Lin B, Jang J, Heo SJ, Kolega J, Lee K, Bae Y. A machine learning pipeline revealing heterogeneous responses to drug perturbations on vascular smooth muscle cell spheroid morphology and formation. Sci Rep 2021; 11:23285. [PMID: 34857846 PMCID: PMC8640073 DOI: 10.1038/s41598-021-02683-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Accepted: 11/22/2021] [Indexed: 02/06/2023] Open
Abstract
Machine learning approaches have shown great promise in biology and medicine discovering hidden information to further understand complex biological and pathological processes. In this study, we developed a deep learning-based machine learning algorithm to meaningfully process image data and facilitate studies in vascular biology and pathology. Vascular injury and atherosclerosis are characterized by neointima formation caused by the aberrant accumulation and proliferation of vascular smooth muscle cells (VSMCs) within the vessel wall. Understanding how to control VSMC behaviors would promote the development of therapeutic targets to treat vascular diseases. However, the response to drug treatments among VSMCs with the same diseased vascular condition is often heterogeneous. Here, to identify the heterogeneous responses of drug treatments, we created an in vitro experimental model system using VSMC spheroids and developed a machine learning-based computational method called HETEROID (heterogeneous spheroid). First, we established a VSMC spheroid model that mimics neointima-like formation and the structure of arteries. Then, to identify the morphological subpopulations of drug-treated VSMC spheroids, we used a machine learning framework that combines deep learning-based spheroid segmentation and morphological clustering analysis. Our machine learning approach successfully showed that FAK, Rac, Rho, and Cdc42 inhibitors differentially affect spheroid morphology, suggesting that multiple drug responses of VSMC spheroid formation exist. Overall, our HETEROID pipeline enables detailed quantitative drug characterization of morphological changes in neointima formation, that occurs in vivo, by single-spheroid analysis.
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Affiliation(s)
- Kalyanaraman Vaidyanathan
- Department of Pathology and Anatomical Sciences, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, State University of New York, Buffalo, NY, 14203, USA
| | - Chuangqi Wang
- Department of Biomedical Engineering, Worcester Polytechnic Institute, Worcester, MA, 01609, USA
| | - Amanda Krajnik
- Department of Pathology and Anatomical Sciences, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, State University of New York, Buffalo, NY, 14203, USA
| | - Yudong Yu
- Department of Biomedical Engineering, Worcester Polytechnic Institute, Worcester, MA, 01609, USA
| | - Moses Choi
- Department of Biomedical Engineering, Worcester Polytechnic Institute, Worcester, MA, 01609, USA
| | - Bolun Lin
- Department of Computer Science, Worcester Polytechnic Institute, Worcester, MA, 01609, USA
| | - Junbong Jang
- Vascular Biology Program, Boston Children's Hospital, Boston, MA, 02115, USA
| | - Su-Jin Heo
- Department of Orthopedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - John Kolega
- Department of Pathology and Anatomical Sciences, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, State University of New York, Buffalo, NY, 14203, USA
| | - Kwonmoo Lee
- Department of Biomedical Engineering, Worcester Polytechnic Institute, Worcester, MA, 01609, USA.
- Vascular Biology Program, Boston Children's Hospital, Boston, MA, 02115, USA.
- Department of Surgery, Harvard Medical School, Boston, MA, 02115, USA.
| | - Yongho Bae
- Department of Pathology and Anatomical Sciences, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, State University of New York, Buffalo, NY, 14203, USA.
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5
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Selivanova EK, Gaynullina DK, Tarasova OS. Thyroxine Induces Acute Relaxation of Rat Skeletal Muscle Arteries via Integrin αvβ3, ERK1/2 and Integrin-Linked Kinase. Front Physiol 2021; 12:726354. [PMID: 34594239 PMCID: PMC8477044 DOI: 10.3389/fphys.2021.726354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Accepted: 08/23/2021] [Indexed: 11/17/2022] Open
Abstract
Aim: Hyperthyroidism is associated with a decreased peripheral vascular resistance, which could be caused by the vasodilator genomic or non-genomic effects of thyroid hormones (TH). Non-genomic, or acute, effects develop within several minutes and involve a wide tissue-specific spectrum of molecular pathways poorly studied in vasculature. We aimed to investigate the mechanisms of acute effects of TH on rat skeletal muscle arteries. Methods: Sural arteries from male Wistar rats were used for isometric force recording (wire myography) and phosphorylated protein content measurement (Western blotting). Results: Both triiodothyronine (T3) and thyroxine (T4) reduced contractile response of sural arteries to α1-adrenoceptor agonist methoxamine. The effect of T4 was more prominent than T3 and not affected by iopanoic acid, an inhibitor of deiodinase 2. Endothelium denudation abolished the effect of T3, but not T4. Integrin αvβ3 inhibitor tetrac abolished the effect of T4 in endothelium-denuded arteries. T4 weakened methoxamine-induced elevation of phospho-MLC2 (Ser19) content in arterial samples. The effect of T4 in endothelium-denuded arteries was abolished by inhibiting ERK1/2 activation with U0126 as well as by ILK inhibitor Cpd22 but persisted in the presence of Src- or Rho-kinase inhibitors (PP2 and Y27632, respectively). Conclusion: Acute non-genomic relaxation of sural arteries induced by T3 is endothelium-dependent and that induced by T4 is endothelium-independent. The effect of T4 on α1-adrenergic contraction is stronger compared to T3 and involves the suppression of extracellular matrix signaling via integrin αvβ3, ERK1/2 and ILK with subsequent decrease of MLC2 (Ser19) phosphorylation.
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Affiliation(s)
- Ekaterina K Selivanova
- Department of Human and Animal Physiology, Faculty of Biology, M.V. Lomonosov Moscow State University, Moscow, Russia
| | - Dina K Gaynullina
- Department of Human and Animal Physiology, Faculty of Biology, M.V. Lomonosov Moscow State University, Moscow, Russia.,Department of Physiology, Pirogov Russian National Research Medical University, Moscow, Russia
| | - Olga S Tarasova
- Department of Human and Animal Physiology, Faculty of Biology, M.V. Lomonosov Moscow State University, Moscow, Russia.,Laboratory of Exercise Physiology, Institute of Biomedical Problems, Russian Academy of Sciences, Moscow, Russia
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6
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Xie X, Chen H, Zhang L, Chan D, Hill WG, Zeidel ML, Yu W. Molecular mechanisms of voiding dysfunction in a novel mouse model of acute urinary retention. FASEB J 2021; 35:e21447. [PMID: 33742688 PMCID: PMC9844132 DOI: 10.1096/fj.202002415r] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 01/22/2021] [Accepted: 02/01/2021] [Indexed: 01/19/2023]
Abstract
Acute urinary retention (AUR) is a common urological emergency and affects a significant patient population. The inability to eliminate urine may lead to permanent damage to the bladder's structure and functioning. However, we know little about the underlying molecular sequelae to the urine retention. To closely mirror the potential high pressures that patients with AUR could experience, we catheterized anesthetized female mice via the urethra and filled the bladder by pumping saline (25 µL/min) into the bladder lumen to 50 cm or 80 cm water pressure. A water column with designated height (50 or 80 cm) was then adjusted to maintain constant pressure in the bladder lumen for 30 minutes. Functional and morphological evaluations were performed from 0 to 24 hours after AUR treatment. Mice exhibited incontinence and overactivity with diminished voiding pressure. Significant injury was confirmed which revealed bladders with disrupted urothelial barrier, edematous lamina propria, and distorted muscle bundles. Bladder smooth muscle (BSM) from pressure-treated mice have significantly diminished contraction force, suggesting that bladder voiding dysfunction can be attributed to impaired BSM contractility. Indeed, dysregulation of acetylcholine and purinergic signaling pathways were demonstrated, indicating that reduced efficacy of these pathways contributes to impaired BSM contractility. Finally, altered expression of β1-integrin and extracellular matrix mediated mechanotransduction pathways were detected, suggesting a profound remodeling process. These data demonstrated an easy to perform, quantifiable, and reproducible AUR mouse model, which mimics well the characteristics of human AUR patients, and our data generate new insights into the molecular mechanisms that occur following AUR.
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Affiliation(s)
- Xiang Xie
- Department of Medicine, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA
| | - Huan Chen
- Department of Medicine, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA
| | - Lanlan Zhang
- Department of Medicine, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA
| | - Daniel Chan
- Brown University/Harvard Summer Research Program in Kidney Medicine, Providence, RI, USA
| | - Warren G. Hill
- Department of Medicine, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA
| | - Mark L. Zeidel
- Department of Medicine, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA
| | - Weiqun Yu
- Department of Medicine, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA
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7
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Frismantiene A, Philippova M, Erne P, Resink TJ. Cadherins in vascular smooth muscle cell (patho)biology: Quid nos scimus? Cell Signal 2018; 45:23-42. [DOI: 10.1016/j.cellsig.2018.01.023] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Revised: 01/23/2018] [Accepted: 01/23/2018] [Indexed: 12/16/2022]
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8
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Hulin-Curtis S, Williams H, Wadey KS, Sala-Newby GB, George SJ. Targeting Wnt/β-Catenin Activated Cells with Dominant-Negative N-cadherin to Reduce Neointima Formation. MOLECULAR THERAPY-METHODS & CLINICAL DEVELOPMENT 2017; 5:191-199. [PMID: 28540322 PMCID: PMC5430493 DOI: 10.1016/j.omtm.2017.04.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Accepted: 04/27/2017] [Indexed: 11/29/2022]
Abstract
Approximately 50% of coronary artery bypass grafts using the autologous saphenous vein fail within 10 years due to intimal thickening. This study examined whether a gene therapy approach that selectively kills Wnt/β-catenin/T cell factor (TCF) activated vascular smooth muscle cells (VSMCs) using dominant-negative N-cadherin (dn-N-cadherin) reduced intimal thickening. Cultured human VSMCs infected with an adenovirus (Ad) encoding dn-N-cadherin via the TCF promoter (Ad-TOP-dn-N-cadherin) specifically expressed dn-N-cadherin in response to activation of the Wnt/β-catenin/TCF pathway. Infection with Ad-TOP-dn-N-cadherin significantly increased VSMC apoptosis (3 ± 0.2% versus 9 ± 0.7%; p < 0.05, n = 6) and significantly inhibited VSMC migration by 83 ± 15% (p < 0.05, n = 6), but did not affect VSMC proliferation (p > 0.05, n = 5). In an ex vivo human saphenous vein organ culture model, luminal delivery of Ad-TOP-dn-N-cadherin significantly increased VSMC apoptosis after 7 days of culture (4 ± 1.4% versus 9 ± 1.6%; p < 0.01, n = 6) and suppressed intimal thickening by 75 ± 7% (p < 0.05, n = 5), without a detrimental effect on endothelial cell coverage. In vivo, Ad-TOP-dn-N-cadherin significantly reduced intimal thickening at day 21 (n = 10) in comparison to the Ad-β-galactosidase (Ad-β-gal) control virus (n = 12, p < 0.05) in the mouse carotid artery ligation model. In summary, we have developed a novel approach to selectively reduce intimal thickening, which may be beneficial in reducing late vein graft failure.
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Affiliation(s)
- Sarah Hulin-Curtis
- School of Clinical Sciences, University of Bristol, Research Floor Level Seven, Bristol Royal Infirmary, Upper Maudlin St., Bristol BS2 8HW, UK
| | - Helen Williams
- School of Clinical Sciences, University of Bristol, Research Floor Level Seven, Bristol Royal Infirmary, Upper Maudlin St., Bristol BS2 8HW, UK
| | - Kerry S Wadey
- School of Clinical Sciences, University of Bristol, Research Floor Level Seven, Bristol Royal Infirmary, Upper Maudlin St., Bristol BS2 8HW, UK
| | - Graciela B Sala-Newby
- School of Clinical Sciences, University of Bristol, Research Floor Level Seven, Bristol Royal Infirmary, Upper Maudlin St., Bristol BS2 8HW, UK
| | - Sarah J George
- School of Clinical Sciences, University of Bristol, Research Floor Level Seven, Bristol Royal Infirmary, Upper Maudlin St., Bristol BS2 8HW, UK
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9
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Sun Z, Li M, Li Z, Hill MA, Meininger GA. N-Cadherin, a novel and rapidly remodelling site involved in vasoregulation of small cerebral arteries. J Physiol 2017; 595:1987-2000. [PMID: 28008617 DOI: 10.1113/jp272995] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2016] [Accepted: 12/18/2016] [Indexed: 12/29/2022] Open
Abstract
KEY POINTS N-cadherin formed punctate adherens junctions (AJ) along the borders between vascular smooth muscle cells (VSMCs) in the pressurized rat superior cerebellar artery. The formation of N-cadherin AJs in the vessel wall depends on the intraluminal pressure and was responsive to treatment with phenylephrine (PE) (10-5 m) and ACh (10-5 m). N-cadherin-coated beads were able to induce clustering of N-cadherin-enhanced green fluorescent protein (EGFP) on the plasma membrane of isolated VSMCs, whereas treatment with PE (10-5 m) or sodium nitroprusside (10-5 m) induced a significant increase or decrease in the N-cadherin-EGFP clustering, respectively. Application of pulling force (∼1 nN) to the N-cadherin-coated beads via an atomic force microscope induced a localized mechanical response from the VSMCs that opposed the pulling. ABSTRACT N-cadherin is the major cell-cell adhesion molecule in vascular smooth muscle cells (VSMCs). We tested the hypothesis that N-cadherin is part of a novel mechanosensory mechanism in VSMCs and plays an active role in both the arteriolar myogenic response and during changes in vascular tone induced by vasomotor agonists. Intact and pressurized rat superior cerebellar arteries were labelled for confocal immunofluorescence imaging. N-cadherin formed punctate adherens junctions (AJ) along the borders between VSMCs. When the lumen pressure was raised from 50 to 90 mmHg, both the density and the average size of N-cadherin AJs increased significantly. Similarly, arteriolar constriction with phenylephrine (PE) (10-5 m) induced a significant increase of N-cadherin AJ density at 50 mmHg, whereas vasodilatation induced by ACh (10-5 m) was accompanied by a significant decrease in density and size of N-cadherin AJs. An atomic force microscope (AFM) was employed to further examine the mechano-responsive properties of N-cadherin adhesion sites in isolated VSMCs. AFM probes with an attached N-cadherin-coated microbead (5 μm) induced a progressive clustering of N-cadherin-enhanced green fluorescent protein (EGFP) on the VSMC surface. Application of pulling force (∼1 nN) to the N-cadherin-coated-beads with the AFM induced a localized mechanical response from the VSMCs that opposed the pulling. Treatment with PE (10-5 m) or sodium nitroprusside (10-5 m) induced a significant increase or decrease of the N-cadherin-EGFP clustering, respectively. These observations provide compelling evidence that N-cadherin AJs are sensitive to pressure and vasomotor agonists in VSMCs and support a functional role of N-cadherin AJs in vasomotor regulation.
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Affiliation(s)
- Zhe Sun
- Dalton Cardiovascular Research Center, Columbia, MO, USA.,Department of Medical Pharmacology and Physiology, University of Missouri, Columbia, MO, USA
| | - Min Li
- Dalton Cardiovascular Research Center, Columbia, MO, USA
| | - Zhaohui Li
- Dalton Cardiovascular Research Center, Columbia, MO, USA
| | - Michael A Hill
- Dalton Cardiovascular Research Center, Columbia, MO, USA.,Department of Medical Pharmacology and Physiology, University of Missouri, Columbia, MO, USA
| | - Gerald A Meininger
- Dalton Cardiovascular Research Center, Columbia, MO, USA.,Department of Medical Pharmacology and Physiology, University of Missouri, Columbia, MO, USA
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10
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Sun Y, Kang L, Li J, Liu H, Wang Y, Wang C, Zou Y. Advanced glycation end products impair the functions of saphenous vein but not thoracic artery smooth muscle cells through RAGE/MAPK signalling pathway in diabetes. J Cell Mol Med 2016; 20:1945-55. [PMID: 27297874 PMCID: PMC5020631 DOI: 10.1111/jcmm.12886] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2015] [Accepted: 04/26/2016] [Indexed: 11/30/2022] Open
Abstract
Saphenous vein (SV) and internal thoracic artery (ITA) are commonly used bypass conduits. However, graft failure occurs in SV rather than in ITA, especially in diabetes (DM). The mechanism for this difference has not been fully understood. Accumulation of advanced glycation end products (AGEs) and activation of AGEs receptor (RAGE) could accelerate smooth muscle cells (SMC) proliferation in DM, we thus asked whether AGEs-RAGE could mediate the differences between SMC from SV (SMCV ) and from ITA (SMCA ). Twenty-five patients with DM and other 25 patients without DM were enclosed in DM and control group, respectively. AGEs (100 μg/ml) were added to cultured SMCA and SMCV obtained at coronary artery bypass graft (CABG) and proliferative rates were determined. Transcript expression, phosphorylation or protein expression levels of MAP kinase family (ERK, p38 and JNK), matrix metalloproteinases (MMP)-2 and MMP-9 were analysed by real-time PCR, Western-blot or immunofluorescence staining, respectively. Compared with paired SMCA , SMCV showed significantly increased proliferation rate, MAP kinase family phosphorylation, and MMP-2/9 expression in both groups, especially in DM group. The responses of SMCV induced by AGEs were significantly larger in DM than in control group, which could be suppressed by inhibition of RAGE and ERK. However, all the cellular events of SMCV were not found in paired SMCA . This study suggests that AGEs-RAGE could induce the proliferation of SMCV but not SMCA via MAP kinase pathway in DM. It is the intrinsic 'inactive' tendency of SMCA that contributes to the different rates of graft disease between SV and ITA after CABG.
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Affiliation(s)
- Yongxin Sun
- Department of Cardiac Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Le Kang
- Department of Cardiac Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Jun Li
- Department of Cardiac Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Huan Liu
- Department of Cardiac Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Yulin Wang
- Department of Cardiac Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Chunsheng Wang
- Department of Cardiac Surgery, Zhongshan Hospital, Fudan University, Shanghai, China.
| | - Yunzeng Zou
- Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai, China.
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Yun SJ, Ha JM, Kim EK, Kim YW, Jin SY, Lee DH, Song SH, Kim CD, Shin HK, Bae SS. Akt1 isoform modulates phenotypic conversion of vascular smooth muscle cells. Biochim Biophys Acta Mol Basis Dis 2014; 1842:2184-92. [PMID: 25201081 DOI: 10.1016/j.bbadis.2014.08.014] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2014] [Revised: 08/13/2014] [Accepted: 08/28/2014] [Indexed: 12/01/2022]
Abstract
In this study, we investigated the role of Akt1 isoform in phenotypic change of vascular smooth muscle cells (VSMCs) and neointima formation. Laminin-induced conversion of synthetic VSMCs into contractile VSMCs was measured by expression of marker proteins for contractile VSMCs and collagen gel contraction assay. Culture of synthetic VSMCs on laminin-coated plates induced expression of marker proteins for contractile VSMCs and showed contraction in response to angiotensin II (AngII) stimulation. Silencing integrin-linked kinase attenuated activation of Akt and blocked phenotypic conversion of VSMCs resulting in the loss of AngII-dependent contraction. Laminin-induced phenotypic conversion of VSMCs was abrogated by phosphatidylinositol 3-kinase inhibitor or in cells silencing Akt1 but not Akt2. Proliferation of contractile VSMCs on laminin-coated plate was enhanced in cells silencing Akt1 whereas silencing Akt2 did not affect. Promoter activity of myocardin and SM22α was enhanced in contractile phenotype and overexpression of myocardin stimulated promoter activity of SM22α in synthetic phenotype. Promoter activity of myocardin and SM22α was reduced in cells silencing Akt1 and promoter activity of SM22α was restored by overexpression of myocardin in cells silencing Akt1. However, silencing of Akt2 affected neither promoter activity of myocardin nor SM22α. Finally, neointima formation in carotid artery ligation and high fat-diet-induced atherosclerosis was facilitated in mice lacking Akt1. This study demonstrates that Akt1 isoform stimulates laminin-induced phenotypic conversion of synthetic VSMCs by regulating the expression of myocardin. VSMCs become susceptible to shifting from contractile to synthetic phenotype by the loss of Akt1 in pathological conditions.
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Affiliation(s)
- Sung Ji Yun
- MRC for Ischemic Tissue Regeneration, Department of Pharmacology, Pusan National University School of Medicine, Yangsan, Republic of Korea; Department of Pharmacology, Pusan National University School of Medicine, Yangsan, Republic of Korea
| | - Jung Min Ha
- MRC for Ischemic Tissue Regeneration, Department of Pharmacology, Pusan National University School of Medicine, Yangsan, Republic of Korea; Department of Pharmacology, Pusan National University School of Medicine, Yangsan, Republic of Korea
| | - Eun Kyoung Kim
- MRC for Ischemic Tissue Regeneration, Department of Pharmacology, Pusan National University School of Medicine, Yangsan, Republic of Korea; Department of Pharmacology, Pusan National University School of Medicine, Yangsan, Republic of Korea
| | - Young Whan Kim
- MRC for Ischemic Tissue Regeneration, Department of Pharmacology, Pusan National University School of Medicine, Yangsan, Republic of Korea; Department of Pharmacology, Pusan National University School of Medicine, Yangsan, Republic of Korea
| | - Seo Yeon Jin
- MRC for Ischemic Tissue Regeneration, Department of Pharmacology, Pusan National University School of Medicine, Yangsan, Republic of Korea; Department of Pharmacology, Pusan National University School of Medicine, Yangsan, Republic of Korea
| | - Dong Hyung Lee
- Department of Obstetrics and Gynecology, Pusan National University School of Medicine, Yangsan, Republic of Korea
| | - Sang Heon Song
- Department of Internal Medicine, Pusan National University Hospital, Pusan National University School of Medicine, Yangsan, Republic of Korea
| | - Chi Dae Kim
- MRC for Ischemic Tissue Regeneration, Department of Pharmacology, Pusan National University School of Medicine, Yangsan, Republic of Korea; Department of Pharmacology, Pusan National University School of Medicine, Yangsan, Republic of Korea
| | - Hwa Kyoung Shin
- Department of Anatomy, Pusan National University School of Korean Medicine, Yangsan, Republic of Korea
| | - Sun Sik Bae
- MRC for Ischemic Tissue Regeneration, Department of Pharmacology, Pusan National University School of Medicine, Yangsan, Republic of Korea.
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Sun Z, Parrish AR, Hill MA, Meininger GA. N-cadherin, A Vascular Smooth Muscle Cell-Cell Adhesion Molecule: Function and Signaling for Vasomotor Control. Microcirculation 2014; 21:208-18. [DOI: 10.1111/micc.12123] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2013] [Accepted: 02/05/2014] [Indexed: 12/22/2022]
Affiliation(s)
- Zhe Sun
- Dalton Cardiovascular Research Center; University of Missouri; Columbia Missouri USA
| | - Alan R. Parrish
- Department of Medical Pharmacology and Physiology; University of Missouri; Columbia Missouri USA
| | - Michael A. Hill
- Dalton Cardiovascular Research Center; University of Missouri; Columbia Missouri USA
- Department of Medical Pharmacology and Physiology; University of Missouri; Columbia Missouri USA
| | - Gerald A. Meininger
- Dalton Cardiovascular Research Center; University of Missouri; Columbia Missouri USA
- Department of Medical Pharmacology and Physiology; University of Missouri; Columbia Missouri USA
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13
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The Xenopus Tgfbi is required for embryogenesis through regulation of canonical Wnt signalling. Dev Biol 2013; 379:16-27. [DOI: 10.1016/j.ydbio.2012.11.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2011] [Revised: 09/18/2012] [Accepted: 11/12/2012] [Indexed: 10/27/2022]
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Herranz B, Marquez S, Guijarro B, Aracil E, Aicart-Ramos C, Rodriguez-Crespo I, Serrano I, Rodríguez-Puyol M, Zaragoza C, Saura M. Integrin-linked kinase regulates vasomotor function by preventing endothelial nitric oxide synthase uncoupling: role in atherosclerosis. Circ Res 2011; 110:439-49. [PMID: 22194624 DOI: 10.1161/circresaha.111.253948] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
RATIONALE Atherosclerotic lesions develop in regions of disturbed flow, whereas laminar flow protects from atherogenesis; however, the mechanisms involved are not completely elucidated. Integrins are mechanosensors of shear stress in endothelial cells, and integrin-linked kinase (ILK) is important for blood vessel integrity and cardiovascular development. OBJECTIVES To explore the role of ILK in vascular function by studying conditionally ILK-deficient (cKO) mice and human atherosclerotic arteries. RESULTS ILK expression was detected in the endothelial cell layer of nonatherosclerotic vessels but was absent from the endothelium of atherosclerotic arteries. Live ultrasound imaging revealed that acetylcholine-mediated vasodilatation was impaired in cKO mice. These mice exhibited lowered agonist-induced nitric oxide synthase (NOS) activity and decreased cyclic guanosine monophosphate and nitrite production. ILK deletion caused endothelial NOS (eNOS) uncoupling, reflected in reduced tetrahydrobiopterin (BH4) levels, increased BH2 levels, decreased dihydrofolate reductase expression, and increased eNOS-dependent generation of superoxide accompanied by extensive vascular protein nitration. ILK reexpression prevented eNOS uncoupling in cKO cells, whereas superoxide formation was unaffected by ILK depletion in eNOS-KO cells, indicating eNOS as a primary source of superoxide anion. eNOS and ILK coimmunoprecipitated in aortic lysates from control animals, and eNOS-ILK-shock protein 90 interaction was detected in human normal mammary arteries but was absent from human atherosclerotic carotid arteries. eNOS-ILK interaction in endothelial cells was prevented by geldanamycin, suggesting heat shock protein 90 as a binding partner. CONCLUSIONS Our results identify ILK as a regulatory partner of eNOS in vivo that prevents eNOS uncoupling, and suggest ILK as a therapeutic target for prevention of endothelial dysfunction related to shear stress-induced vascular diseases.
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Kameritsch P, Pogoda K, Pohl U. Channel-independent influence of connexin 43 on cell migration. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2011; 1818:1993-2001. [PMID: 22155212 DOI: 10.1016/j.bbamem.2011.11.016] [Citation(s) in RCA: 78] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2011] [Revised: 11/10/2011] [Accepted: 11/18/2011] [Indexed: 01/06/2023]
Abstract
In this review we focus on the role of connexins, especially of Cx43, as modulators of migration - a fundamental process in embryogenesis and in physiologic functions of the adult organism. This impact of connexins is partly mediated by their function as intercellular channels but an increasing number of studies support the view that at least part of the effects are truly independent of the channel function. The channel-independent function comprises extrinsic guidance of migrating cells due to connexin mediated cell adhesion as well as intracellular processes. Cx43 has been shown to exert effects on migration by interfering with receptor signalling, cytoskeletal remodelling and tubulin dynamics. These effects are mainly dependent on the presence of the carboxyl tail of Cx43. The molecular basis of this channel-independent connexin function is still not yet fully understood but early results open an exciting view towards new functions of connexins in the cell. This article is part of a Special Issue entitled: The Communicating junctions, composition, structure and characteristics.
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Bacakova L, Filova E, Parizek M, Ruml T, Svorcik V. Modulation of cell adhesion, proliferation and differentiation on materials designed for body implants. Biotechnol Adv 2011; 29:739-67. [PMID: 21821113 DOI: 10.1016/j.biotechadv.2011.06.004] [Citation(s) in RCA: 561] [Impact Index Per Article: 43.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2011] [Revised: 05/30/2011] [Accepted: 06/09/2011] [Indexed: 12/12/2022]
Affiliation(s)
- Lucie Bacakova
- Department of Growth and Differentiation of Cell Populations, Institute of Physiology, Academy of Sciences of the Czech Republic, Videnska 1082, 14220 Prague 4-Krc, Czech Republic.
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Freudenberger T, Röck K, Dai G, Dorn S, Mayer P, Heim HK, Fischer JW. Estradiol inhibits hyaluronic acid synthase 1 expression in human vascular smooth muscle cells. Basic Res Cardiol 2011; 106:1099-109. [DOI: 10.1007/s00395-011-0217-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2010] [Revised: 07/29/2011] [Accepted: 08/19/2011] [Indexed: 01/22/2023]
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18
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Perez VADJ, Ali Z, Alastalo TP, Ikeno F, Sawada H, Lai YJ, Kleisli T, Spiekerkoetter E, Qu X, Rubinos LH, Ashley E, Amieva M, Dedhar S, Rabinovitch M. BMP promotes motility and represses growth of smooth muscle cells by activation of tandem Wnt pathways. ACTA ACUST UNITED AC 2011; 192:171-88. [PMID: 21220513 PMCID: PMC3019546 DOI: 10.1083/jcb.201008060] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
We present a novel cell-signaling paradigm in which bone morphogenetic protein 2 (BMP-2) consecutively and interdependently activates the wingless (Wnt)-β-catenin (βC) and Wnt-planar cell polarity (PCP) signaling pathways to facilitate vascular smooth muscle motility while simultaneously suppressing growth. We show that BMP-2, in a phospho-Akt-dependent manner, induces βC transcriptional activity to produce fibronectin, which then activates integrin-linked kinase 1 (ILK-1) via α4-integrins. ILK-1 then induces the Wnt-PCP pathway by binding a proline-rich motif in disheveled (Dvl) and consequently activating RhoA-Rac1-mediated motility. Transfection of a Dvl mutant that binds βC without activating RhoA-Rac1 not only prevents BMP-2-mediated vascular smooth muscle cell motility but promotes proliferation in association with persistent βC activity. Interfering with the Dvl-dependent Wnt-PCP activation in a murine stented aortic graft injury model promotes extensive neointima formation, as shown by optical coherence tomography and histopathology. We speculate that, in response to injury, factors that subvert BMP-2-mediated tandem activation of Wnt-βC and Wnt-PCP pathways contribute to obliterative vascular disease in both the systemic and pulmonary circulations.
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Chen S, Rong M, Platteau A, Hehre D, Smith H, Ruiz P, Whitsett J, Bancalari E, Wu S. CTGF disrupts alveolarization and induces pulmonary hypertension in neonatal mice: implication in the pathogenesis of severe bronchopulmonary dysplasia. Am J Physiol Lung Cell Mol Physiol 2011; 300:L330-40. [PMID: 21239535 DOI: 10.1152/ajplung.00270.2010] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The pathological hallmarks of bronchopulmonary dysplasia (BPD), one of the most common long-term pulmonary complications associated with preterm birth, include arrested alveolarization, abnormal vascular growth, and variable interstitial fibrosis. Severe BPD is often complicated by pulmonary hypertension characterized by excessive pulmonary vascular remodeling and right ventricular hypertrophy that significantly contributes to the mortality and morbidity of these infants. Connective tissue growth factor (CTGF) is a multifunctional protein that coordinates complex biological processes during tissue development and remodeling. We have previously shown that conditional overexpression of CTGF in airway epithelium under the control of the Clara cell secretory protein promoter results in BPD-like architecture in neonatal mice. In this study, we have generated a doxycycline-inducible double transgenic mouse model with overexpression of CTGF in alveolar type II epithelial (AT II) cells under the control of the surfactant protein C promoter. Overexpression of CTGF in neonatal mice caused dramatic macrophage and neutrophil infiltration in alveolar air spaces and perivascular regions. Overexpression of CTGF also significantly decreased alveolarization and vascular development. Furthermore, overexpression of CTGF induced pulmonary vascular remodeling and pulmonary hypertension. Most importantly, we have also demonstrated that these pathological changes are associated with activation of integrin-linked kinase (ILK)/glucose synthesis kinase-3β (GSK-3β)/β-catenin signaling. These data indicate that overexpression of CTGF in AT II cells results in lung pathology similar to those observed in infants with severe BPD and that ILK/GSK-3β/β-catenin signaling may play an important role in the pathogenesis of severe BPD.
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Affiliation(s)
- Shaoyi Chen
- Department of Pediatrics, Division of Neonatology, Univ. of Miami Miller School of Medicine, FL 33101, USA
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20
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Demyanets S, Kaun C, Rychli K, Pfaffenberger S, Kastl SP, Hohensinner PJ, Rega G, Katsaros KM, Afonyushkin T, Bochkov VN, Paireder M, Huk I, Maurer G, Huber K, Wojta J. Oncostatin M-enhanced vascular endothelial growth factor expression in human vascular smooth muscle cells involves PI3K-, p38 MAPK-, Erk1/2- and STAT1/STAT3-dependent pathways and is attenuated by interferon-γ. Basic Res Cardiol 2010; 106:217-31. [PMID: 21174212 DOI: 10.1007/s00395-010-0141-0] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2010] [Revised: 11/30/2010] [Accepted: 12/06/2010] [Indexed: 12/21/2022]
Abstract
The pleiotropic cytokine oncostatin M (OSM), a member of the glycoprotein (gp)130 ligand family, plays a key role in inflammation and cardiovascular disease. As inflammation precedes and accompanies pathological angiogenesis, we investigated the effect of OSM and other gp130 ligands on vascular endothelial growth factor (VEGF) production in human vascular smooth muscle cells (SMC). Human coronary artery SMC (HCASMC) and human aortic SMC (HASMC) were treated with different gp130 ligands. VEGF protein was determined by ELISA. Specific mRNA was detected by RT-PCR. Western blotting was performed for signal transducers and activators of transcription1 (STAT1), STAT3, Akt and p38 mitogen-activated protein kinase (p38 MAPK). OSM mRNA and VEGF mRNA expression was analyzed in human carotid endaterectomy specimens from 15 patients. OSM increased VEGF production in both HCASMC and HASMC derived from different donors. OSM upregulated VEGF and OSM receptor-specific mRNA in these cells. STAT3 inhibitor WP1066, p38 MAPK inhibitors SB-202190 and BIRB 0796, extracellular signal-regulated kinase1/2 (Erk1/2) inhibitor U0126, and phosphatidylinositol 3-kinase (PI3K) inhibitors LY-294002 and PI-103 reduced OSM-induced VEGF synthesis. We found OSM expression in human atherosclerotic lesions where OSM mRNA correlated with VEGF mRNA expression. Interferon-γ (IFN-γ), but not IL-4 or IL-10, reduced OSM-induced VEGF production in vascular SMC. Our findings that OSM, which is present in human atherosclerotic lesions and correlates with VEGF expression, stimulates production of VEGF by human coronary artery and aortic SMC indicate that OSM could contribute to plaque angiogenesis and destabilization. IFN-γ reduced OSM-induced VEGF production by vascular SMC.
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Affiliation(s)
- Svitlana Demyanets
- Department of Internal Medicine II, Medical University of Vienna, Waehringer Guertel 18-20, 1090 Vienna, Austria
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21
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Nath KA, Grande JP, Kang L, Juncos JP, Ackerman AW, Croatt AJ, Katusic ZS. ß-Catenin is markedly induced in a murine model of an arteriovenous fistula: the effect of metalloproteinase inhibition. Am J Physiol Renal Physiol 2010; 299:F1270-7. [PMID: 20881035 DOI: 10.1152/ajprenal.00488.2010] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Neointimal hyperplasia contributes to failure of hemodialysis arteriovenous fistulas (AVFs). Increased expression of matrix metalloproteinase (MMP)-9 occurs in AVFs, and MMP-9 is implicated in neointimal hyperplasia and vascular injury. Recent studies demonstrate that MMP-9, by degrading N-cadherin, leads to increased expression of β-catenin and β-catenin-dependent proliferation of smooth muscle cells. The present study examined this pathway in the venous limb of a murine AVF model. Western analyses demonstrate that, in this model, there is diminished expression of N-cadherin accompanied by increased expression of β-catenin, c-Myc, and proliferating cell nuclear antigen (PCNA). By immunohistochemistry, β-catenin and c-Myc localized to proliferating smooth muscle cells in the venous limb of the AVF. Increased expression of β-catenin was accompanied by augmented expression of phosphorylated (p)-glycogen synthase kinase (GSK)-3β, GSK-3β, and integrin-linked kinase. The administration of doxycycline suppressed MMP-9 expression but did not reduce venous histological injury in the AVF, or increase AVF patency assessed 6 wk after its creation. Doxycycline did not influence expression of β-catenin, c-Myc, GSK-3β, or integrin-linked kinase. Thus, in this vascular injury model, the upregulation of β-catenin cannot be readily attributed to MMP-9 upregulation; increased β-catenin expression may reflect either the upregulation of p-GSK-3β, GSK-3β, or integrin-linked kinase. This study provides the first exploration of β-catenin in an AVF, demonstrating substantial upregulation of this mitogenic signaling molecule and uncovering possible mechanisms that may account for such upregulation.
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Affiliation(s)
- Karl A Nath
- Division of Nephrology and Hypertension, Department of Physiology and Biomedical Engineering, Mayo Clinic, Guggenheim 542, 200 First St., SW, Rochester, MN 55905, USA.
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Huang S, Sun Z, Li Z, Martinez-Lemus LA, Meininger GA. Modulation of microvascular smooth muscle adhesion and mechanotransduction by integrin-linked kinase. Microcirculation 2010; 17:113-27. [PMID: 20163538 DOI: 10.1111/j.1549-8719.2009.00011.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
OBJECTIVE In this study, we investigated the involvement of integrin-linked kinase (ILK) in the adhesion of arteriolar vascular smooth muscle cells (VSMC) to fibronectin (FN) and in the mechano-responsiveness of VSMC focal adhesions (FA). METHODS ILK was visualized in VSMC by expressing EGFP-ILK and it was knocked down using ILK-shRNA constructs. Atomic force microscopy (AFM) was used to characterize VSMC interactions with FN, VSMC stiffness and to apply and measure forces at a VSMC single FA site. RESULTS ILK was localized to FA and silencing ILK promoted cell spreading, enhanced cell adhesion, reduced cell proliferation and reduced downstream phosphorylation of GSK-3beta and PKB/Akt. AFM studies demonstrated that silencing ILK enhanced alpha5beta1 integrin adhesion to FN and enhanced VSMC contraction in response to a pulling force applied at the level of a single FN-FA site. CONCLUSIONS ILK functions in arteriolar VSMC appear linked to multiple signaling pathways and processes that inhibit cell spreading, cell adhesion, FA formation, adhesion to FN and the mechano-responsiveness of FN-FA sites.
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Affiliation(s)
- Shaoxing Huang
- Dalton Cardiovascular Research Center, University of Missouri-Columbia, Columbia, MO 65211, USA
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Esfandiarei M, Yazdi SA, Gray V, Dedhar S, van Breemen C. Integrin-linked kinase functions as a downstream signal of platelet-derived growth factor to regulate actin polymerization and vascular smooth muscle cell migration. BMC Cell Biol 2010; 11:16. [PMID: 20178627 PMCID: PMC2838830 DOI: 10.1186/1471-2121-11-16] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2009] [Accepted: 02/23/2010] [Indexed: 11/10/2022] Open
Abstract
Background Vascular smooth muscle cell migration and accumulation in response to growth factors extensively contribute to the development of intimal thickening within the vessel wall. Cumulative evidence has shown that actin cytoskeleton polymerization and rearrangement are critical steps during cellular spreading and migration. Integrin-linked kinase, an intracellular serine/threonine kinase, is a cytoplasmic interactor of integrin beta-1 and beta-3 receptors regulating cell-cell and/or cell-extracellular matrix interaction, cell contraction, extracellular matrix modification, and cell spreading and migration in response to various stimuli. However, the regulatory role of ILK during vascular smooth muscle cell migration and the importance of integrin signaling in occlusive vascular diseases are not yet fully elucidated. Results In the present study, we report that integrin-linked kinase controls mouse aortic smooth muscle cell migration in response to platelet-derived growth factor. We have also identified p38 mitogen activated protein kinase as a downstream signaling pathway of the integrin-linked kinase that regulates platelet-derived growth factor-induced actin polymerization and smooth muscle cell migration. Conclusion This study will provide new insights into the potential therapeutic value of modulating integrin signaling in an attempt to block or delay smooth muscle cell migration and the progression of vascular diseases.
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Affiliation(s)
- Mitra Esfandiarei
- Child & Family Research Institute, Department of Anesthesiology, Pharmacology, and Therapeutics, University of British Columbia, Vancouver, BC, Canada.
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Madi HA, Riches K, Warburton P, O'Regan DJ, Turner NA, Porter KE. Inherent differences in morphology, proliferation, and migration in saphenous vein smooth muscle cells cultured from nondiabetic and Type 2 diabetic patients. Am J Physiol Cell Physiol 2009; 297:C1307-17. [PMID: 19741193 DOI: 10.1152/ajpcell.00608.2008] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Individuals with Type 2 diabetes mellitus (T2DM) are at increased risk of saphenous vein (SV) graft stenosis following coronary artery bypass. Graft stenosis is caused by intimal hyperplasia, a pathology characterized by smooth muscle cell (SMC) proliferation and migration. We hypothesized that SV-SMC from T2DM patients were intrinsically more proliferative and migratory than those from nondiabetic individuals. SV-SMC were cultured from nondiabetic and T2DM patients. Cell morphology (light microscopy, immunocytochemistry), S100A4 expression (real-time RT-PCR, immunoblotting), proliferation (cell counting), migration (Boyden chamber assay), and cell signaling (immunoblotting with phosphorylation state-specific antibodies) were studied. SV-SMC from T2DM patients were morphologically distinct from nondiabetic patients and exhibited a predominantly rhomboid phenotype, accompanied by disrupted F-actin cytoskeleton, disorganized alpha-smooth muscle actin network, and increased focal adhesion formation. However, no differences were observed in expression of the calcium-binding protein S100A4, a marker of rhomboid SMC phenotype, between the two cell populations. T2DM cells were less proliferative in response to fetal calf serum than nondiabetic cells, but both populations had similar proliferative responses to insulin plus PDGF. Under high glucose concentration conditions in the presence of insulin, migration of diabetic SV-SMC was greater than nondiabetic cells. Glucose concentration did not affect SV-SMC proliferation. No differences in insulin or PDGF-induced phosphorylation of ERK-1/2 or components of the Akt pathway (Akt-Ser473, Akt-Thr308, and GSK-3beta) were apparent between the two populations. In conclusion, SV-SMC from T2DM patients differ from nondiabetic SV-SMC in that they exhibit a rhomboid phenotype and are more migratory, but less proliferative, in response to serum.
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Affiliation(s)
- Haifa A Madi
- Division of Cardiovascular and Neuronal Remodelling, Leeds Institute of Genetics, Health and Therapeutics, University of Leeds, Leeds LS2 9JT, United Kingdom
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Willert M, Augstein A, Poitz DM, Schmeisser A, Strasser RH, Braun-Dullaeus RC. Transcriptional regulation of Pim-1 kinase in vascular smooth muscle cells and its role for proliferation. Basic Res Cardiol 2009; 105:267-77. [PMID: 19711112 DOI: 10.1007/s00395-009-0055-x] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/25/2009] [Revised: 07/22/2009] [Accepted: 08/18/2009] [Indexed: 12/24/2022]
Abstract
The Ser/Thr-protein kinase Pim-1 has been discovered as a novel transducer of survival- and cell cycle promoting signals in the hematopoietic cell system. Although its significance for proliferation of vascular smooth muscle cells (VSMC) in vitro and neointima formation in vivo has been suggested recently, the mechanism has barely been characterized. This study aimed to foster the understanding of Pim-1 expression and regulation in murine VSMC in response to factors typically present within the atherosclerotic plaque. While oxidative stress, VEGF-A165 and angiotensin II did not have any effect on Pim-1 expression, VSMC strongly increased (3-fold) Pim-1 mRNA upon stimulation with PDGF(bb), followed by its protein upregulation. Half life of Pim-1 RNA and protein were determined to be 25 min and 6 h, respectively. PDGF(bb) induced a strong, 10-fold increase in BrdU-uptake, a marker of proliferation. This was effectively blocked by either Pim-1-specific inhibitor quercetagetin or adenovirally introduced Pim-1 shRNA. We further identified the signaling pathways linking PDGF(bb) to Pim-1 in VSMC: as expected, we determined transcriptional stimulation of Pim-1 via Janus-activated kinase (Jak), but also an additional pathway involving protein kinase C (PKC) and the mitogen-activated protein kinase Mek1/2. Blockade of Akt signaling did, however, not interfere with Pim-1 upregulation, suggesting an independence of either survival system. PDGF(bb)-induced proliferation of VSMC is partly attributed to transcriptionally upregulated Pim-1 and was assigned to distinct cell signaling. Our findings help to understand the fundamental processes of vasculoproliferative diseases thus opening avenues for its prevention and treatment.
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Affiliation(s)
- Manuela Willert
- Internal Medicine, Department of Cardiology and Intensive Care, University of Technology Dresden, Dresden, Germany
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Van Herck JL, De Meyer GRY, Martinet W, Bult H, Vrints CJ, Herman AG. Proteasome inhibitor bortezomib promotes a rupture-prone plaque phenotype in ApoE-deficient mice. Basic Res Cardiol 2009; 105:39-50. [PMID: 19693627 DOI: 10.1007/s00395-009-0054-y] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2009] [Revised: 07/08/2009] [Accepted: 07/22/2009] [Indexed: 11/27/2022]
Abstract
The ubiquitin-proteasome system is involved in the development and progression of atherosclerosis. The aim of this study was to investigate whether plaque composition is affected by proteasome function. In vitro, the potent and selective proteasome inhibitor bortezomib induced apoptosis in both cultured smooth muscle cells (SMCs) and activated macrophages. This effect was associated with increased expression of C/EBP homologous protein and cleavage of caspase-12, indicative of endoplasmic reticulum stress. The sensitivity to the proapoptotic effects of proteasome inhibition correlated with the protein synthesis rate. Proteasome inhibition in explanted atherosclerotic plaques of ApoE-deficient mice resulted in a significant decrease in SMCs and macrophages, indicating that both cell types in the atherosclerotic plaque were susceptible to the proapoptotic effects of proteasome inhibition. In vivo proteasome inhibition in ApoE-deficient mice did not affect plaque size or composition of early atherosclerotic plaques, but resulted in a significant decrease in collagen content as well as a significant enlargement of the necrotic core in advanced atherosclerotic plaques. In conclusion, our results indicate that an impaired proteasome function promotes features of a more rupture-prone plaque phenotype.
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Affiliation(s)
- Jozef Leo Van Herck
- Division of Cardiology, Antwerp University Hospital, Wilrijkstraat 10, 2650, Edegem, Belgium.
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Propylthiouracil, independent of its antithyroid effect, promotes vascular smooth muscle cells differentiation via PTEN induction. Basic Res Cardiol 2009; 105:19-28. [DOI: 10.1007/s00395-009-0045-z] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2008] [Revised: 06/22/2009] [Accepted: 07/06/2009] [Indexed: 11/27/2022]
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28
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Ho B, Bendeck MP. Integrin linked kinase (ILK) expression and function in vascular smooth muscle cells. Cell Adh Migr 2009; 3:174-6. [PMID: 19262169 DOI: 10.4161/cam.3.2.7374] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
Vascular smooth muscle cell (SMC) migration and proliferation contribute to arterial wound repair and thickening of the intimal layer in atherosclerosis, restenosis and transplant vascular disease. These processes are influenced by cell adhesion to molecules present in the extracellular matrix, and regulated by the integrin family of cell-surface matrix receptors. An important signaling molecule acting downstream of integrin receptors is integrin-linked kinase (ILK), a serine/threonine kinase and scaffolding protein. ILK has been implicated in cancer cell growth and survival through modulation of downstream targets, notably Akt and glycogen synthase kinase-3beta (GSK3beta). Evidence also exists to establish ILK as a molecular adaptor protein linking integrins to the actin cytoskeleton and regulating actin polymerization, and this function may not necessarily depend upon the kinase activity of ILK. ILK has been implicated in anchorage-independent growth, cell cycle progression, epithelial-mesenchymal transition (EMT), invasion and migration. In addition, ILK has been shown to be involved in vascular development, tumor angiogenesis and cardiac hypertrophy. Despite the documented involvement of integrin signaling in vascular pathologies, the function of ILK has not been well characterized in the SMC response to vascular injury. This brief review summarizes and puts into context the current literature on ILK expression and function in the vascular smooth muscle cell.
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Affiliation(s)
- Bernard Ho
- Department of Laboratory Medicine and Pathobiology, University of Toronto, ON, CA
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29
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Dwivedi A, Slater SC, George SJ. MMP-9 and -12 cause N-cadherin shedding and thereby beta-catenin signalling and vascular smooth muscle cell proliferation. Cardiovasc Res 2008; 81:178-86. [PMID: 18852254 DOI: 10.1093/cvr/cvn278] [Citation(s) in RCA: 103] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
AIMS Vascular smooth muscle cell (VSMC) proliferation contributes to intimal thickening in restenosis and atherosclerosis. Previously, we demonstrated that matrix-degrading metalloproteinase (MMP)-dependent shedding of the extracellular portion of N-cadherin increased VSMC proliferation via elevation of beta-catenin signalling and cyclin D1 expression. In this study, we aimed to determine whether MMP-2, -9, -12, or -14 regulates VSMC proliferation via N-cadherin shedding. METHODS AND RESULTS N-cadherin shedding was significantly impaired in proliferating mouse aortic VSMCs deficient in MMP-9 (MMP-9(-/-)) and MMP-12 (MMP-12(-/-)) compared with wild-type controls (1.1 +/- 0.7- and 1.0 +/- 0.1- vs. 2.0 +/- 0.2-fold). Furthermore, proliferating VSMCs subjected to MMP-9 or -12 siRNA knockdown or deficient in MMP-9 or -12 showed significantly increased cellular levels of N-cadherin compared with controls (1.7 +/- 0.2-, 2.7 +/- 0.6-, and 3.5 +/- 1.6-, 1.7 +/- 0.2-fold, respectively). Incubation of VSMCs with active MMP-9 or -12 independently increased N-cadherin cleavage. Additionally, beta-catenin signalling was significantly reduced by 52 +/- 17 and 81 +/- 12% in MMP-9(-/-) and -12(-/-) proliferating VSMCs, respectively, and this was corroborated by siRNA knockdown of MMP-9 and -12. Decreased beta-catenin signalling coincided with significantly reduced proliferation and cyclin D1 protein levels in MMP-9(-/-) and -12(-/-) cells. Little or no additive effect was observed with combined modulation of MMP-9 and -12 in all experiments. In contrast, N-cadherin shedding and VSMC proliferation were not modulated by MMP-2 and -14. CONCLUSION In conclusion, we propose that MMP-9 and -12 promote intimal thickening by independent cleavage of N-cadherin, which elevates VSMC proliferation via beta-catenin signalling.
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Affiliation(s)
- Amrita Dwivedi
- Bristol Heart Institute, University of Bristol, Level 7, Bristol Royal Infirmary, Bristol BS2 8HW, UK
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30
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Chen WJ, Pang JHS, Lin KH, Yang SH. Propylthiouracil, independent of its antithyroid effect, decreases VSMC collagen expression. Basic Res Cardiol 2008; 104:60-8. [DOI: 10.1007/s00395-008-0746-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2008] [Accepted: 08/20/2008] [Indexed: 11/24/2022]
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Ho B, Hou G, Pickering JG, Hannigan G, Langille BL, Bendeck MP. Integrin-linked kinase in the vascular smooth muscle cell response to injury. THE AMERICAN JOURNAL OF PATHOLOGY 2008; 173:278-88. [PMID: 18535176 DOI: 10.2353/ajpath.2008.071046] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Integrin-mediated interactions between smooth muscle cells (SMCs) and the extracellular matrix regulate cell migration and proliferation during neointimal hyperplasia. Integrin-linked kinase (ILK) is a serine-threonine kinase and scaffolding molecule that acts downstream of integrin receptors to modulate cell adhesion; therefore, we examined ILK function in SMCs during wound repair. Silencing of ILK expression with siRNA in vitro decreased cell adhesion to fibronectin and accelerated both cell proliferation and wound closure in the cell monolayer; it also resulted in the rearrangement of focal adhesions and diminished central actin stress fibers. Akt and GSK3beta are ILK substrates that are important in cell motility; however, ILK siRNA silencing did not attenuate injury-induced increases in Akt and GSK3beta phosphorylation. Following balloon catheter injury of the rat carotid artery in vivo, a dramatic decrease in ILK levels coincided with both the proliferation and migration of SMCs, which leads to the formation of a thickened neointima. Immunostaining revealed decreased ILK levels in the media and deep layers of the neointima, but increased ILK levels in the subluminal layers of the intima. Taken together, these results suggest that ILK functions to maintain SMC quiescence in the normal artery. A decrease in ILK levels after injury may permit SMC migration, proliferation, and neointimal thickening, and its re-expression at the luminal surface may attenuate this process during later stages of the injury response.
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Affiliation(s)
- Bernard Ho
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada
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