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Yuan X, Jiang C, Xue Y, Guo F, Luo M, Guo L, Gao Y, Yuan T, Xu H, Chen H. KLF13 promotes VSMCs phenotypic dedifferentiation by directly binding to the SM22α promoter. J Cell Physiol 2024; 239:e31251. [PMID: 38634445 DOI: 10.1002/jcp.31251] [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: 10/11/2023] [Revised: 02/24/2024] [Accepted: 02/28/2024] [Indexed: 04/19/2024]
Abstract
Krüppel-like factor 13 (KLF13), a zinc finger transcription factor, is considered as a potential regulator of cardiomyocyte differentiation and proliferation during heart morphogenesis. However, its precise role in the dedifferentiation of vascular smooth muscle cells (VSMCs) during atherosclerosis and neointimal formation after injury remains poorly understood. In this study, we investigated the relationship between KLF13 and SM22α expression in normal and atherosclerotic plaques by bioanalysis, and observed a significant increase in KLF13 levels in the atherosclerotic plaques of both human patients and ApoE-/- mice. Knockdown of KLF13 was found to ameliorate intimal hyperplasia following carotid artery injury. Furthermore, we discovered that KLF13 directly binds to the SM22α promoter, leading to the phenotypic dedifferentiation of VSMCs. Remarkably, we observed a significant inhibition of platelet-derived growth factor BB-induced VSMCs dedifferentiation, proliferation, and migration when knocked down KLF13 in VSMCs. This inhibitory effect of KLF13 knockdown on VCMC function was, at least in part, mediated by the inactivation of p-AKT signaling in VSMCs. Overall, our findings shed light on a potential therapeutic target for treating atherosclerotic lesions and restenosis after vascular injury.
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MESH Headings
- Animals
- Humans
- Male
- Mice
- Atherosclerosis/genetics
- Atherosclerosis/pathology
- Atherosclerosis/metabolism
- Carotid Artery Injuries/pathology
- Carotid Artery Injuries/genetics
- Carotid Artery Injuries/metabolism
- Cell Dedifferentiation
- Cell Movement/genetics
- Cell Proliferation/genetics
- Cells, Cultured
- Kruppel-Like Transcription Factors/metabolism
- Kruppel-Like Transcription Factors/genetics
- Mice, Inbred C57BL
- Muscle Proteins/genetics
- Muscle, Smooth, Vascular/metabolism
- Muscle, Smooth, Vascular/pathology
- Myocytes, Smooth Muscle/metabolism
- Myocytes, Smooth Muscle/pathology
- Neointima/metabolism
- Neointima/pathology
- Neointima/genetics
- Phenotype
- Plaque, Atherosclerotic/pathology
- Plaque, Atherosclerotic/metabolism
- Plaque, Atherosclerotic/genetics
- Promoter Regions, Genetic/genetics
- Proto-Oncogene Proteins c-akt/metabolism
- Repressor Proteins/genetics
- Repressor Proteins/metabolism
- Signal Transduction
- Cell Cycle Proteins
- Microfilament Proteins/genetics
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Affiliation(s)
- Xiaofan Yuan
- Department of General Practice, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, China
| | - Chuan Jiang
- Department of Neurosurgery, The Southwest Medical University, Luzhou, Sichuan, China
| | - Yuzhou Xue
- Department of Cardiology, Peking University Third Hospital, Beijing, China
| | - Fuqiang Guo
- Department of Neurology, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, China
| | - Minghao Luo
- Department of Cardiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Lei Guo
- Department of Neurology, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, China
| | - Yang Gao
- Department of General Practice, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, China
| | - Tongling Yuan
- Department of General Practice, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, China
| | - Hui Xu
- Department of General Practice, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, China
| | - Hong Chen
- Department of General Practice, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, China
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2
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Bogan BJ, Williams HC, Holden CM, Patel V, Joseph G, Fierro C, Sepulveda H, Taylor WR, Rezvan A, San Martin A. The Role of Fatty Acid Synthase in the Vascular Smooth Muscle Cell to Foam Cell Transition. Cells 2024; 13:658. [PMID: 38667273 PMCID: PMC11048793 DOI: 10.3390/cells13080658] [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: 02/01/2024] [Revised: 03/23/2024] [Accepted: 03/27/2024] [Indexed: 04/28/2024] Open
Abstract
Vascular smooth muscle cells (VSMCs), in their contractile and differentiated state, are fundamental for maintaining vascular function. Upon exposure to cholesterol (CHO), VSMCs undergo dedifferentiation, adopting characteristics of foam cells-lipid-laden, macrophage-like cells pivotal in atherosclerotic plaque formation. CHO uptake by VSMCs leads to two primary pathways: ABCA1-mediated efflux or storage in lipid droplets as cholesterol esters (CEs). CE formation, involving the condensation of free CHO and fatty acids, is catalyzed by sterol O-acyltransferase 1 (SOAT1). The necessary fatty acids are synthesized by the lipogenic enzyme fatty acid synthase (FASN), which we found to be upregulated in atherosclerotic human coronary arteries. This observation led us to hypothesize that FASN-mediated fatty acid biosynthesis is crucial in the transformation of VSMCs into foam cells. Our study reveals that CHO treatment upregulates FASN in human aortic SMCs, concurrent with increased expression of CD68 and upregulation of KLF4, markers associated with the foam cell transition. Crucially, downregulation of FASN inhibits the CHO-induced upregulation of CD68 and KLF4 in VSMCs. Additionally, FASN-deficient VSMCs exhibit hindered lipid accumulation and an impaired transition to the foam cell phenotype following CHO exposure, while the addition of the fatty acid palmitate, the main FASN product, exacerbates this transition. FASN-deficient cells also show decreased SOAT1 expression and elevated ABCA1. Notably, similar effects are observed in KLF4-deficient cells. Our findings demonstrate that FASN plays an essential role in the CHO-induced upregulation of KLF4 and the VSMC to foam cell transition and suggest that targeting FASN could be a novel therapeutic strategy to regulate VSMC phenotypic modulation.
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Affiliation(s)
- Bethany J. Bogan
- Department of Medicine, Division of Cardiology, Emory University, Atlanta, GA 30322, USA; (B.J.B.); (H.C.W.); (C.M.H.); (V.P.); (G.J.); (W.R.T.); (A.R.)
| | - Holly C. Williams
- Department of Medicine, Division of Cardiology, Emory University, Atlanta, GA 30322, USA; (B.J.B.); (H.C.W.); (C.M.H.); (V.P.); (G.J.); (W.R.T.); (A.R.)
| | - Claire M. Holden
- Department of Medicine, Division of Cardiology, Emory University, Atlanta, GA 30322, USA; (B.J.B.); (H.C.W.); (C.M.H.); (V.P.); (G.J.); (W.R.T.); (A.R.)
| | - Vraj Patel
- Department of Medicine, Division of Cardiology, Emory University, Atlanta, GA 30322, USA; (B.J.B.); (H.C.W.); (C.M.H.); (V.P.); (G.J.); (W.R.T.); (A.R.)
| | - Giji Joseph
- Department of Medicine, Division of Cardiology, Emory University, Atlanta, GA 30322, USA; (B.J.B.); (H.C.W.); (C.M.H.); (V.P.); (G.J.); (W.R.T.); (A.R.)
| | - Christopher Fierro
- Institute of Biomedical Sciences, Faculty of Medicine, Universidad Andres Bello, Santiago 8370071, Chile; (C.F.); (H.S.)
| | - Hugo Sepulveda
- Institute of Biomedical Sciences, Faculty of Medicine, Universidad Andres Bello, Santiago 8370071, Chile; (C.F.); (H.S.)
| | - W. Robert Taylor
- Department of Medicine, Division of Cardiology, Emory University, Atlanta, GA 30322, USA; (B.J.B.); (H.C.W.); (C.M.H.); (V.P.); (G.J.); (W.R.T.); (A.R.)
| | - Amir Rezvan
- Department of Medicine, Division of Cardiology, Emory University, Atlanta, GA 30322, USA; (B.J.B.); (H.C.W.); (C.M.H.); (V.P.); (G.J.); (W.R.T.); (A.R.)
| | - Alejandra San Martin
- Department of Medicine, Division of Cardiology, Emory University, Atlanta, GA 30322, USA; (B.J.B.); (H.C.W.); (C.M.H.); (V.P.); (G.J.); (W.R.T.); (A.R.)
- Institute of Biomedical Sciences, Faculty of Medicine, Universidad Andres Bello, Santiago 8370071, Chile; (C.F.); (H.S.)
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3
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Chang TY, Lin MS, Chen CC, Leu YL, Wang SH. Isoxanthohumol reduces neointimal hyperplasia through the apelin/AKT pathway. Biochim Biophys Acta Mol Basis Dis 2024; 1870:167099. [PMID: 38428686 DOI: 10.1016/j.bbadis.2024.167099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 01/14/2024] [Accepted: 02/19/2024] [Indexed: 03/03/2024]
Abstract
The abnormal proliferation, migration, and inflammation of vascular smooth muscle cells (VSMCs) play crucial roles in the development of neointimal hyperplasia and restenosis. Exposure to inflammatory cytokines such as platelet-derived growth factor (PDGF)-BB and tumour necrosis factor-alpha (TNF-α) induces the transformation of contractile VSMCs into abnormal synthetic VSMCs. Isoxanthohumol (IXN) has significant anti-inflammatory, antiproliferative, and antimigratory effects. This study aimed to explore the therapeutic impact and regulatory mechanism of IXN in treating neointimal hyperplasia. The present findings indicate that IXN effectively hinders the abnormal proliferation, migration, and inflammation of VSMCs triggered by PDGF or TNF-α. This inhibition is primarily achieved through the modulation of the apelin/AKT or AKT pathway, respectively. In an in vivo model, IXN effectively reduced neointimal hyperplasia in denuded femoral arteries. These results suggest that IXN holds promise as a potential and innovative therapeutic candidate for the treatment of restenosis.
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Affiliation(s)
- Ting-Yu Chang
- Department of Anatomy and Cell Biology, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Mao-Shin Lin
- Division of Cardiology, Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Chin-Chuan Chen
- Graduate Institute of Natural Products, Chang Gung University, Taoyuan, Taiwan; Tissue Bank, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Yann-Lii Leu
- Graduate Institute of Natural Products, Chang Gung University, Taoyuan, Taiwan; Tissue Bank, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Shu-Huei Wang
- Department of Anatomy and Cell Biology, College of Medicine, National Taiwan University, Taipei, Taiwan.
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4
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Zhou Y, Sharma S, Sun X, Guan X, Hou Y, Yang Z, Shi H, Zou MH, Song P, Zhou J, Wang S, Hu Z, Li C. SMYD2 regulates vascular smooth muscle cell phenotypic switching and intimal hyperplasia via interaction with myocardin. Cell Mol Life Sci 2023; 80:264. [PMID: 37615725 PMCID: PMC11071988 DOI: 10.1007/s00018-023-04883-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 06/14/2023] [Accepted: 07/17/2023] [Indexed: 08/25/2023]
Abstract
The SET and MYND domain-containing protein 2 (SMYD2) is a histone lysine methyltransferase that has been reported to regulate carcinogenesis and inflammation. However, its role in vascular smooth muscle cell (VSMC) homeostasis and vascular diseases has not been determined. Here, we investigated the role of SMYD2 in VSMC phenotypic modulation and vascular intimal hyperplasia and elucidated the underlying mechanism. We observed that SMYD2 expression was downregulated in injured carotid arteries in mice and phenotypically modulated VSMCs in vitro. Using an SMC-specific SMYD2 knockout mouse model, we found that SMYD2 ablation in VSMCs exacerbated neointima formation after vascular injury in vivo. Conversely, SMYD2 overexpression inhibited VSMC proliferation and migration in vitro and attenuated arterial narrowing in injured vessels in mice. SMYD2 downregulation promoted VSMC phenotypic switching accompanied with enhanced proliferation and migration. Mechanistically, genome-wide transcriptome analysis and loss/gain-of-function studies revealed that SMYD2 up-regulated VSMC contractile gene expression and suppressed VSMC proliferation and migration, in part, by promoting expression and transactivation of the master transcription cofactor myocardin. In addition, myocardin directly interacted with SMYD2, thereby facilitating SMYD2 recruitment to the CArG regions of SMC contractile gene promoters and leading to an open chromatin status around SMC contractile gene promoters via SMYD2-mediated H3K4 methylation. Hence, we conclude that SMYD2 is a novel regulator of VSMC contractile phenotype and intimal hyperplasia via a myocardin-dependent epigenetic regulatory mechanism.
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Affiliation(s)
- Yu Zhou
- Center for Molecular and Translational Medicine, Institute for Biomedical Sciences, Georgia State University, 157 Decatur St SE, Atlanta, GA, 30303, USA.
- Division of Vascular Surgery, National-Local Joint Engineering Laboratory of Vascular Disease Treatment, Engineering and Technology Center for Diagnosis and Treatment of Vascular Diseases, Guangdong Engineering Laboratory of Diagnosis and Treatment of Vascular Disease, The First Affiliated Hospital, Sun Yat-Sen University, No 58, Zhongshan 2nd Street, Yuexiu District, Guangzhou, 510080, Guangdong, China.
| | - Shaligram Sharma
- Center for Molecular and Translational Medicine, Institute for Biomedical Sciences, Georgia State University, 157 Decatur St SE, Atlanta, GA, 30303, USA
| | - Xiaonan Sun
- Center for Molecular and Translational Medicine, Institute for Biomedical Sciences, Georgia State University, 157 Decatur St SE, Atlanta, GA, 30303, USA
| | - Xiaoqing Guan
- Center for Molecular and Translational Medicine, Institute for Biomedical Sciences, Georgia State University, 157 Decatur St SE, Atlanta, GA, 30303, USA
| | - Yuning Hou
- Center for Molecular and Translational Medicine, Institute for Biomedical Sciences, Georgia State University, 157 Decatur St SE, Atlanta, GA, 30303, USA
- Cancer Animal Models Shared Resource, Winship Cancer Institute, Emory University, Atlanta, GA, USA
| | - Zhe Yang
- Department of Biochemistry, Microbiology, and Immunology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Hang Shi
- Department of Biology, Center for Obesity Reversal, Georgia State University, Atlanta, GA, USA
| | - Ming-Hui Zou
- Center for Molecular and Translational Medicine, Institute for Biomedical Sciences, Georgia State University, 157 Decatur St SE, Atlanta, GA, 30303, USA
| | - Ping Song
- Center for Molecular and Translational Medicine, Institute for Biomedical Sciences, Georgia State University, 157 Decatur St SE, Atlanta, GA, 30303, USA
| | - Jiliang Zhou
- Department of Pharmacology and Toxicology, Medical College of Georgia, Augusta University, Augusta, GA, USA
| | - Shenming Wang
- Division of Vascular Surgery, National-Local Joint Engineering Laboratory of Vascular Disease Treatment, Engineering and Technology Center for Diagnosis and Treatment of Vascular Diseases, Guangdong Engineering Laboratory of Diagnosis and Treatment of Vascular Disease, The First Affiliated Hospital, Sun Yat-Sen University, No 58, Zhongshan 2nd Street, Yuexiu District, Guangzhou, 510080, Guangdong, China
| | - Zuojun Hu
- Division of Vascular Surgery, National-Local Joint Engineering Laboratory of Vascular Disease Treatment, Engineering and Technology Center for Diagnosis and Treatment of Vascular Diseases, Guangdong Engineering Laboratory of Diagnosis and Treatment of Vascular Disease, The First Affiliated Hospital, Sun Yat-Sen University, No 58, Zhongshan 2nd Street, Yuexiu District, Guangzhou, 510080, Guangdong, China.
| | - Chunying Li
- Center for Molecular and Translational Medicine, Institute for Biomedical Sciences, Georgia State University, 157 Decatur St SE, Atlanta, GA, 30303, USA.
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5
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Zhou Y, Sharma S, Sun X, Guan X, Hou Y, Yang Z, Shi H, Zou MH, Song P, Zhou J, Wang S, Hu Z, Li C. SMYD2 Regulates Vascular Smooth Muscle Cell Phenotypic Switching and Intimal Hyperplasia via Interaction with Myocardin. RESEARCH SQUARE 2023:rs.3.rs-2721176. [PMID: 37090651 PMCID: PMC10120764 DOI: 10.21203/rs.3.rs-2721176/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/25/2023]
Abstract
The SET and MYND domain-containing protein 2 (SMYD2) is a histone lysine methyltransferase that has been reported to regulate carcinogenesis and inflammation. However, its role in vascular smooth muscle cell (VSMC) homeostasis and vascular diseases has not been determined. Here, we investigated the role of SMYD2 in VSMC phenotypic modulation and vascular intimal hyperplasia and elucidated the underlying mechanism. We observed that SMYD2 expression was downregulated in injured carotid arteries in mice and phenotypically modulated VSMCs in vitro. Using a SMC-specific Smyd2 knockout mouse model, we found that Smyd2 ablation in VSMCs exacerbates neointima formation after vascular injury in vivo. Conversely, Smyd2 overexpression inhibits VSMC proliferation and migration in vitro and attenuates arterial narrowing in injured vessels in mice. Smyd2 downregulation promotes VSMC phenotypic switching accompanied with enhanced proliferation and migration. Mechanistically, genome-wide transcriptome analysis and loss/gain-of-function studies revealed that SMYD2 up-regulates VSMC contractile gene expression and suppresses VSMC proliferation and migration, in part, by promoting expression and transactivation of the master transcription cofactor myocardin. In addition, myocardin directly interacts with SMYD2, thereby facilitating SMYD2 recruitment to the CArG regions of SMC contractile gene promoters and leading to an open chromatin status around SMC contractile gene promoters via SMYD2-mediated H3K4 methylation. Hence, we conclude that SMYD2 is a novel regulator of VSMC contractile phenotype and intimal hyperplasia via a myocardin-dependent epigenetic regulatory mechanism and may be a potential therapeutic target for occlusive vascular diseases.
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Affiliation(s)
- Yu Zhou
- Center for Molecular and Translational Medicine, Institute for Biomedical Sciences, Georgia State University, Atlanta, GA, USA
- Division of Vascular Surgery, National-Local Joint Engineering Laboratory of Vascular Disease Treatment, Engineering and Technology Center for Diagnosis and Treatment of Vascular Diseases, Guangdong Engineering Laboratory of Diagnosis and Treatment of Vascular Disease, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Shaligram Sharma
- Center for Molecular and Translational Medicine, Institute for Biomedical Sciences, Georgia State University, Atlanta, GA, USA
| | - Xiaonan Sun
- Center for Molecular and Translational Medicine, Institute for Biomedical Sciences, Georgia State University, Atlanta, GA, USA
| | - Xiaoqing Guan
- Center for Molecular and Translational Medicine, Institute for Biomedical Sciences, Georgia State University, Atlanta, GA, USA
| | - Yuning Hou
- Center for Molecular and Translational Medicine, Institute for Biomedical Sciences, Georgia State University, Atlanta, GA, USA
| | - Zhe Yang
- Department of Biochemistry, Microbiology, and Immunology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Hang Shi
- Center for Obesity Reversal, Department of Biology, Georgia State University, Atlanta, GA, USA
| | - Ming-Hui Zou
- Center for Molecular and Translational Medicine, Institute for Biomedical Sciences, Georgia State University, Atlanta, GA, USA
| | - Ping Song
- Center for Molecular and Translational Medicine, Institute for Biomedical Sciences, Georgia State University, Atlanta, GA, USA
| | - Jiliang Zhou
- Department of Pharmacology and Toxicology, Medical College of Georgia, Augusta University, Augusta, GA, USA
| | - Shenming Wang
- Division of Vascular Surgery, National-Local Joint Engineering Laboratory of Vascular Disease Treatment, Engineering and Technology Center for Diagnosis and Treatment of Vascular Diseases, Guangdong Engineering Laboratory of Diagnosis and Treatment of Vascular Disease, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Zuojun Hu
- Division of Vascular Surgery, National-Local Joint Engineering Laboratory of Vascular Disease Treatment, Engineering and Technology Center for Diagnosis and Treatment of Vascular Diseases, Guangdong Engineering Laboratory of Diagnosis and Treatment of Vascular Disease, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Chunying Li
- Center for Molecular and Translational Medicine, Institute for Biomedical Sciences, Georgia State University, Atlanta, GA, USA
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Laparra-Escareño H, Ortega-Gómez A, Zentella-Dehesa A, Manzo-Merino J, Vergara-Ascencio CA, Antuñano-Blanco MDC, Lopez-Santacruz JR, Montalvo-Jave EE, Anaya-Ayala JE, Lozano-Corona R, Hinojosa CA. The effect of cilostazol on the platelet-derived growth factor-beta/beta isoform reduction on venous hyperplasia in an experimental balloon-induced injury model. Vascular 2023:17085381231162160. [PMID: 36911886 DOI: 10.1177/17085381231162160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/14/2023]
Abstract
BACKGROUND Intimal hyperplasia is the response to endothelial injury. Platelet-derived growth factor is released early and favors the formation of intimal hyperplasia. Although multiple treatments, from open surgery to endovascular techniques, have been used they remain controversial. There is currently interest in developing pharmacological strategies to address this pathology. Local vascular inflammation induced by vessel barotrauma generates intimal hyperplasia due to mechanical stress over the venous endothelium. Cilostazol is a selective phosphodiesterase type 3 (PDE3) selective inhibitor with a regulatory effect over intimal hyperplasia. The objective was to investigate cilostazol's role in inhibiting smooth muscle cell proliferation due to changes in the expression and release of PDGF-BB isoform and the effect on developing IH using an experimental model of vascular barotrauma (balloon-induced injury model). METHODS We included 12 New Zealand rabbits. The balloon-induced injury model (BIIM) and experimental group cilostazol (20 mg/kg/day) included 6 rabbits each. Contralateral veins from 6 rabbits used in BIIM model has been taken as control group. We measured and compared the expression of PDGF-BB and the development of IH. A pathologist board chooses a PDGFRα antibody to localized its expression by immunohistochemistry analysis. Subsequently, using an automated immunohistochemical staining machine, the PDGFR expression was evaluated using a Zeiss Primo Star 4 light microscope. RESULTS The measurement obtained in the intimal layer was: 126.12 μm2 in the CG, 232 μm2 in the BIIM group, and 178 μm2 in the EG. A statistically significant difference was observed. Baseline serum concentrations of PDGF-BB in the BIIM group were 0.22 pg/mL. At 12 h 0.42 pg/mL, and 0.17 pg/mL at seven days. In the experimental group, the basal levels were 0.33 pg/mL. With the use of cilostazol, a lower peak was obtained at 12 h (0.08 pg/mL). This difference was statistically significant. CONCLUSIONS Cilostazol induced a significant reduction of IH caused by barotrauma in the venous endothelium, which correlates with decrease in the PDGF-BB in serum. This could be attributed to the pharmacologic effect on PDGFR expression.
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Affiliation(s)
- Hugo Laparra-Escareño
- Department of Surgery, Section of Vascular Surgery and Endovascular Therapy, 42559Instituto Nacional de Ciencias Medicas y Nutricion Salvador Zubiran, Ciudad de Mexico, Mexico
| | - Alette Ortega-Gómez
- Laboratory of Translational Medicine, 545244National Institute of Cancerology, Ciudad de Mexico, Mexico
| | - Alejandro Zentella-Dehesa
- Department of Biochemistry, 42559Instituto Nacional de Ciencias Medicas y Nutricion Salvador Zubiran, Ciudad de Mexico, Mexico
| | | | - Carlos Acxel Vergara-Ascencio
- Department of Surgery, Section of Vascular Surgery and Endovascular Therapy, 42559Instituto Nacional de Ciencias Medicas y Nutricion Salvador Zubiran, Ciudad de Mexico, Mexico
| | | | - Jose Roberto Lopez-Santacruz
- School of Veterinary Medicine an Animal Husbandry and Pathology, 7180Universidad Nacional Autonoma de Mexico, Ciudad de Mexico, Mexico
| | | | - Javier E Anaya-Ayala
- Department of Surgery, Section of Vascular Surgery and Endovascular Therapy, 42559Instituto Nacional de Ciencias Medicas y Nutricion Salvador Zubiran, Ciudad de Mexico, Mexico
| | - Rodrigo Lozano-Corona
- Department of Surgery, Section of Vascular Surgery and Endovascular Therapy, 42559Instituto Nacional de Ciencias Medicas y Nutricion Salvador Zubiran, Ciudad de Mexico, Mexico
| | - Carlos A Hinojosa
- Department of Surgery, Section of Vascular Surgery and Endovascular Therapy, 42559Instituto Nacional de Ciencias Medicas y Nutricion Salvador Zubiran, Ciudad de Mexico, Mexico
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7
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Wang M, Li S, Liu H, Liu M, Zhang J, Wu Y, Xiao C, Huang H. Large-conductance Ca 2 +-activated K + channel β1-subunit maintains the contractile phenotype of vascular smooth muscle cells. Front Cardiovasc Med 2022; 9:1062695. [PMID: 36568562 PMCID: PMC9780463 DOI: 10.3389/fcvm.2022.1062695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Accepted: 11/24/2022] [Indexed: 12/14/2022] Open
Abstract
Background Vascular smooth muscle cells (VSMCs) phenotype switching is very important during the pathogenesis and progression of vascular diseases. However, it is not well understood how normal VSMCs maintain the differentiated state. The large-conductance Ca2+-activated K+ (BKCa) channels are widely expressed in VSMCs and regulate vascular tone. Nevertheless, there is limited understanding of the role of the BKCa channel in modulation of the VSMC phenotype. Methods and results We assessed BKCa channel expression levels in normal and injured carotid arteries from rats of the balloon-injury model. A strong decrease of BKCa-β1 was seen in the injured carotid arteries, accompanied by a parallel decrease of the VSMC contractile markers. BKCa-β1 in primary rat aortic VSMCs was decreased with the increase of passage numbers and the stimulation of platelet-derived growth factor (PDGF)-BB. Conversely, transforming growth factor β upregulated BKCa-β1. Meanwhile, the BKCa-β1 level was positively associated with the levels of VSMC contractile proteins. Intravenous injection of PDGF-BB induced downregulation of BKCa-β1 expression in the carotid arteries. Knockdown of BKCa-β1 favored VSMC dedifferentiation, characterized by altered morphology, abnormal actin fiber organization, decreased contractile proteins expression and reduced contractile ability. Furthermore, the resultant VSMC dedifferentiated phenotype rendered increased proliferation, migration, enhanced inflammatory factors levels, and matrix metalloproteinases activity. Studies using primary cultured aortic VSMCs from human recapitulated key findings. Finally, protein level of BKCa-β1 was reduced in human atherosclerotic arteries. Conclusion BKCa-β1 is important in the maintenance of the contractile phenotype of VSMCs. As a novel endogenous defender that prevents pathological VSMC phenotype switching, BKCa-β1 may serve as a potential therapeutic target for treating vascular diseases including post-injury restenosis and atherosclerosis.
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Affiliation(s)
- Meili Wang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Shuanglei Li
- Division of Adult Cardiac Surgery, Department of Cardiology, The Sixth Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Hongshan Liu
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Mingyuan Liu
- Department of Vascular Surgery, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Jin Zhang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Yang Wu
- Division of Adult Cardiac Surgery, Department of Cardiology, The Sixth Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Cangsong Xiao
- Division of Adult Cardiac Surgery, Department of Cardiology, The Sixth Medical Center, Chinese PLA General Hospital, Beijing, China,Cangsong Xiao,
| | - Haixia Huang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Capital Medical University, Beijing, China,*Correspondence: Haixia Huang,
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8
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Fasolo F, Paloschi V, Maegdefessel L. Long non-coding RNAs at the crossroad of vascular smooth muscle cell phenotypic modulation in atherosclerosis and neointimal formation. Atherosclerosis 2022:S0021-9150(22)01542-8. [PMID: 36513554 DOI: 10.1016/j.atherosclerosis.2022.11.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 11/15/2022] [Accepted: 11/25/2022] [Indexed: 12/12/2022]
Abstract
Despite extraordinary advances in the comprehension of the pathophysiology of atherosclerosis and the employment of very effective treatments, cardiovascular diseases are still a major cause of mortality and represent a large share of health expenditure worldwide. Atherosclerosis is a disease affecting the medium and large arteries, which consists of a progressive accumulation of fatty substances, cellular waste products and fibrous elements, which culminates in the buildup of a plaque obstructing the blood flow. Endothelial dysfunction represents an early pathological event, favoring immune cells recruitment and triggering local inflammation. The release of inflammatory cytokines and other signaling molecules stimulates phenotypic modifications in the underlying vascular smooth muscle cells, which, in physiological conditions, are responsible for the maintenance of vessels architecture while regulating vascular tone. Vascular smooth muscle cells are highly plastic and may respond to disease stimuli by de-differentiating and losing their contractility, while increasing their synthetic, proliferative, and migratory capacity. This phenotypic switching is considered a pathological hallmark of atherogenesis and is ruled by the activation of selective gene programs. The advent of genomics and the improvement of sequencing technologies deepened our knowledge of the complex gene expression regulatory networks mediated by non-coding RNAs, and favored the rise of innovative therapeutic approaches targeting the non-coding transcriptome. In the context of atherosclerosis, long non-coding RNAs have received increasing attention as potential translational targets, due to their contribution to the molecular dynamics modulating the expression of vascular smooth muscle cells contractile/synthetic gene programs. In this review, we will focus on the most well-characterized long non-coding RNAs contributing to atherosclerosis by controlling expression of the contractile apparatus and genes activated in perturbed vascular smooth muscle cells.
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Affiliation(s)
- Francesca Fasolo
- Department for Vascular and Endovascular Surgery, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany; German Center for Cardiovascular Research (DZHK), Partner Site Munich Heart Alliance (MHA), Berlin, Germany.
| | - Valentina Paloschi
- Department for Vascular and Endovascular Surgery, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany; German Center for Cardiovascular Research (DZHK), Partner Site Munich Heart Alliance (MHA), Berlin, Germany
| | - Lars Maegdefessel
- Department for Vascular and Endovascular Surgery, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany; German Center for Cardiovascular Research (DZHK), Partner Site Munich Heart Alliance (MHA), Berlin, Germany; Molecular Vascular Medicine Unit, Department of Medicine, Karolinska Institutet, Stockholm, Sweden
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9
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Manjunatha K, Behr M, Vogt F, Reese S. A multiphysics modeling approach for in-stent restenosis: Theoretical aspects and finite element implementation. Comput Biol Med 2022; 150:106166. [PMID: 36252366 DOI: 10.1016/j.compbiomed.2022.106166] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 09/19/2022] [Accepted: 10/01/2022] [Indexed: 11/21/2022]
Abstract
Development of in silico models that capture progression of diseases in soft biological tissues are intrinsic in the validation of the hypothesized cellular and molecular mechanisms involved in the respective pathologies. In addition, they also aid in patient-specific adaptation of interventional procedures. In this regard, a fully-coupled high-fidelity Lagrangian finite element framework is proposed within this work which replicates the pathology of in-stent restenosis observed post stent implantation in a coronary artery. Advection-reaction-diffusion equations are set up to track the concentrations of the platelet-derived growth factor, the transforming growth factor-β, the extracellular matrix, and the density of the smooth muscle cells. A continuum mechanical description of volumetric growth involved in the restenotic process, coupled to the evolution of the previously defined vessel wall constituents, is presented. Further, the finite element implementation of the model is discussed, and the behavior of the computational model is investigated via suitable numerical examples. Qualitative validation of the computational model is presented by emulating a stented artery. Patient-specific data are intended to be integrated into the model to predict the risk of in-stent restenosis, and thereby assist in the tuning of stent implantation parameters to mitigate the risk.
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Affiliation(s)
- Kiran Manjunatha
- Institute of Applied Mechanics, RWTH Aachen University, Germany.
| | - Marek Behr
- Chair for Computational Analysis of Technical Systems, RWTH Aachen University, Germany
| | - Felix Vogt
- Department of Cardiology, Pulmonology, Intensive Care and Vascular Medicine, RWTH Aachen University, Germany
| | - Stefanie Reese
- Institute of Applied Mechanics, RWTH Aachen University, Germany
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10
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Chen YF, Wu KJ, Siao LR, Tsai HY. Trilinolein, a Natural Triacylglycerol, Protects Cerebral Ischemia through Inhibition of Neuronal Apoptosis and Ameliorates Intimal Hyperplasia via Attenuation of Migration and Modulation of Matrix Metalloproteinase-2 and RAS/MEK/ERK Signaling Pathway in VSMCs. Int J Mol Sci 2022; 23:12820. [PMID: 36361610 PMCID: PMC9658252 DOI: 10.3390/ijms232112820] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 10/02/2022] [Accepted: 10/20/2022] [Indexed: 09/11/2023] Open
Abstract
Cerebrovascular disease is one of the leading causes of disability and death worldwide, and seeking a potential treatment is essential. Trilinolein (TriL) is a natural triacylglycerol presented in several plants. The effects of TriL on cerebrovascular diseases such as cerebral ischemia and carotid stenosis have never been studied. Accordingly, we investigated the protection of TriL on cerebral ischemia/reperfusion (I/R) and vascular smooth muscle cell (VSMC) migration in vivo and in vitro. The cerebral infarction area, the intima to media area (I/M ratio), and proliferating cell nuclear antigen (PCNA)-staining of the carotid artery were measured. Platelet-derived growth factor (PDGF)-BB-stimulated A7r5 cell migration and potential mechanisms of TriL were investigated by wound healing, transwell, and Western blotting. TriL (50, 100, and 200 mg/kg, p.o.) reduced: the cerebral infarction area; neurological deficit; TUNEL-positive apoptosis; intimal hyperplasia; and PCNA-positive cells in rodents. TriL (5, 10, and 20 µM) significantly inhibited PDGF-BB-stimulated A7r5 cell migration and reduced matrix metalloproteinase-2 (MMP-2), Ras, MEK, and p-ERK protein levels in PDGF-BB-stimulated A7r5 cells. TriL is protective in models of I/R-induced brain injury, carotid artery ligation-induced intimal hyperplasia, and VSMC migration both in vivo and in vitro. TriL could be potentially efficacious in preventing cerebral ischemia and cerebrovascular diseases.
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Affiliation(s)
- Yuh-Fung Chen
- Department of Pharmacology, China Medical University, Taichung 404333, Taiwan
- Department of Pharmacy, China Medical University Hospital, Taichung 404332, Taiwan
| | - Kuo-Jen Wu
- Department of Pharmacology, China Medical University, Taichung 404333, Taiwan
| | - Lian-Ru Siao
- Department of Pharmacology, China Medical University, Taichung 404333, Taiwan
| | - Huei-Yann Tsai
- Department of Pharmacy, China Medical University Hospital, Taichung 404332, Taiwan
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11
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Elliott MB, Matsushita H, Shen J, Yi J, Inoue T, Brady T, Santhanam L, Mao HQ, Hibino N, Gerecht S. Off-the-Shelf, Heparinized Small Diameter Vascular Graft Limits Acute Thrombogenicity in a Porcine Model. Acta Biomater 2022; 151:134-147. [PMID: 35933100 DOI: 10.1016/j.actbio.2022.07.061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 07/27/2022] [Accepted: 07/28/2022] [Indexed: 11/25/2022]
Abstract
Thrombogenicity poses a challenge to the clinical translation of engineered grafts. Previously, small-diameter vascular grafts (sdVG) composed of fibrin hydrogel microfiber tubes (FMT) with an external poly(ε-caprolactone) (PCL) sheath supported long-term patency in mice. Towards the development of an sdVG with off-the-shelf availability, the FMT's shelf stability, scale-up, and successful conjugation of an antithrombotic drug to the fibrin scaffold are reported here. FMTs maintain mechanical stability and high-water retention after storage for one year in a freezer, in a refrigerator, or at room temperature. Low molecular weight heparin-conjugated fibrin scaffolds enabled local and sustained delivery during two weeks of enzymatic degradation. Upscaled fabrication of sdVGs provides natural biodegradable grafts with size and mechanics suitable for human application. Implantation in a carotid artery interposition porcine model exhibited no rupture with thrombi prevented in all heparinized sdVGs (n=4) over 4-5 weeks. Remodeling of the sdVGs is demonstrated with endothelial cells on the luminal surface and initial formation of the medial layer by 4-5 weeks. However, neointimal hyperplasia at 4-5 weeks led to the stenosis and occlusion of most of the sdVGs, which must be resolved for future long-term in vivo assessments. The off-the-shelf, biodegradable heparinized fibrin sdVG layer limits acute thrombogenicity while mediating extensive neotissue formation as the PCL sheath maintains structural integrity. STATEMENT OF SIGNIFICANCE: : To achieve clinical and commercial utility of small-diameter vascular grafts as arterial conduits, these devices must have off-the-shelf availability for emergency arterial bypass applications and be scaled to a size suitable for human applications. A serious impediment to clinical translation is thrombogenicity. Treatments have focused on long-term systemic drug therapy, which increases the patient's risk of bleeding complications, or coating grafts and stents with anti-coagulants, which minimally improves patient outcomes even when combined with dual anti-platelet therapy. We systematically modified the biomaterial properties to develop anticoagulant embedded, biodegradable grafts that maintain off-the-shelf availability, provide mechanical stability, and prevent clot formation through local drug delivery.
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Affiliation(s)
- Morgan B Elliott
- Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, MD 21205; Department of Chemical and Biomolecular Engineering, Johns Hopkins University Whiting School of Engineering, Baltimore, MD 21218; Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD 21218
| | - Hiroshi Matsushita
- Section of Cardiac Surgery, Department of Surgery, The University of Chicago, Chicago, IL 60637
| | - Jessica Shen
- Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, MD 21205; Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD 21218
| | - Jaeyoon Yi
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University Whiting School of Engineering, Baltimore, MD 21218; Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD 21218
| | - Takahiro Inoue
- Section of Cardiac Surgery, Department of Surgery, The University of Chicago, Chicago, IL 60637
| | - Travis Brady
- Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, MD 21205; Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD 21218
| | - Lakshmi Santhanam
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, MD 21205
| | - Hai-Quan Mao
- Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, MD 21205; Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD 21218; Department of Materials Science and Engineering, Johns Hopkins University Whiting School of Engineering, Baltimore, MD 21218; Translational Tissue Engineering Center, Johns Hopkins University School of Medicine, Baltimore, MD 21231
| | - Narutoshi Hibino
- Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD 21218; Section of Cardiac Surgery, Department of Surgery, The University of Chicago, Chicago, IL 60637
| | - Sharon Gerecht
- Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, MD 21205; Department of Chemical and Biomolecular Engineering, Johns Hopkins University Whiting School of Engineering, Baltimore, MD 21218; Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD 21218; Department of Materials Science and Engineering, Johns Hopkins University Whiting School of Engineering, Baltimore, MD 21218; Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, MD 21205; Department of Biomedical Engineering, Duke University, Durham, NC 27705.
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12
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Chiu CW, Hsieh CY, Yang CH, Tsai JH, Huang SY, Sheu JR. Yohimbine, an α2-Adrenoceptor Antagonist, Suppresses PDGF-BB-Stimulated Vascular Smooth Muscle Cell Proliferation by Downregulating the PLCγ1 Signaling Pathway. Int J Mol Sci 2022; 23:ijms23148049. [PMID: 35887391 PMCID: PMC9324260 DOI: 10.3390/ijms23148049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 07/13/2022] [Accepted: 07/14/2022] [Indexed: 11/22/2022] Open
Abstract
Yohimbine (YOH) has antiproliferative effects against breast cancer and pancreatic cancer; however, its effects on vascular proliferative diseases such as atherosclerosis remain unknown. Accordingly, we investigated the inhibitory mechanisms of YOH in vascular smooth muscle cells (VSMCs) stimulated by platelet-derived growth factor (PDGF)-BB, a major mitogenic factor in vascular diseases. YOH (5–20 μM) suppressed PDGF-BB-stimulated a mouse VSMC line (MOVAS-1 cell) proliferation without inducing cytotoxicity. YOH also exhibited antimigratory effects and downregulated matrix metalloproteinase-2 and -9 expression in PDGF-BB-stimulated MOVAS-1 cells. It also promoted cell cycle arrest in the initial gap/first gap phase by upregulating p27Kip1 and p53 expression and reducing cyclin-dependent kinase 2 and proliferating cell nuclear antigen expression. We noted phospholipase C-γ1 (PLCγ1) but not ERK1/2, AKT, or p38 kinase phosphorylation attenuation in YOH-modulated PDGF-BB-propagated signaling pathways in the MOVAS-1 cells. Furthermore, YOH still inhibited PDGF-BB-induced cell proliferation and PLCγ1 phosphorylation in MOVAS-1 cells with α2B-adrenergic receptor knockdown. YOH (5 and 10 mg/kg) substantially suppressed neointimal hyperplasia in mice subjected to CCA ligation for 21 days. Overall, our results reveal that YOH attenuates PDGF-BB-stimulated VSMC proliferation and migration by downregulating a α2B-adrenergic receptor–independent PLCγ1 pathway and reduces neointimal formation in vivo. Therefore, YOH has potential for repurposing for treating atherosclerosis and other vascular proliferative diseases.
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Affiliation(s)
- Chih-Wei Chiu
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei 110, Taiwan;
| | - Cheng-Ying Hsieh
- Department of Pharmacology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan; (C.-Y.H.); (C.-H.Y.); (J.-H.T.)
| | - Chih-Hao Yang
- Department of Pharmacology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan; (C.-Y.H.); (C.-H.Y.); (J.-H.T.)
| | - Jie-Heng Tsai
- Department of Pharmacology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan; (C.-Y.H.); (C.-H.Y.); (J.-H.T.)
| | - Shih-Yi Huang
- School of Nutrition and Health Sciences, Taipei Medical University, Taipei 110, Taiwan
- Graduate Institute of Metabolism and Obesity Sciences, Taipei Medical University, Taipei 110, Taiwan
- Center for Reproductive Medicine & Sciences, Taipei Medical University Hospital, Taipei 110, Taiwan
- Correspondence: (S.-Y.H.); (J.-R.S.); Tel.: +886-2-2736-1661 (ext. 6543) (S.-Y.H.); +886-2-2736-1661 (ext. 3199) (J.-R.S.)
| | - Joen-Rong Sheu
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei 110, Taiwan;
- Department of Pharmacology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan; (C.-Y.H.); (C.-H.Y.); (J.-H.T.)
- Correspondence: (S.-Y.H.); (J.-R.S.); Tel.: +886-2-2736-1661 (ext. 6543) (S.-Y.H.); +886-2-2736-1661 (ext. 3199) (J.-R.S.)
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13
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An agent-based model of vibration-induced intimal hyperplasia. Biomech Model Mechanobiol 2022; 21:1457-1481. [DOI: 10.1007/s10237-022-01601-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 06/13/2022] [Indexed: 11/26/2022]
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14
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miR-335-5p regulates the proliferation, migration and phenotypic switching of vascular smooth muscle cells in aortic dissection by directly regulating SP1. Acta Biochim Biophys Sin (Shanghai) 2022; 54:961-973. [PMID: 35866606 PMCID: PMC9828317 DOI: 10.3724/abbs.2022081] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Uncontrolled proliferation, migration and phenotypic switching of vascular smooth muscle cells (VSMCs) are important steps in the development and progression of aortic dissection (AD). The function and potential mechanism of miR-335-5p in the pathogenesis of AD are explored in this study. Specifically, the biological function of miR-335-5p is explored in vitro through CCK-8, Transwell, immunofluorescence, EdU, wound-healing, RT-qPCR and western blotting assays. In addition, an AD model induced by angiotensin II is used to investigate the function of miR-335-5p in vivo. A dual-luciferase assay is performed to verify the targeting relationship between miR-335-5p and specificity protein 1 (SP1). Experiments involving the loss of SP1 function are performed to demonstrate the function of SP1 in the miR-335-5p-mediated regulation of human aortic-VSMCs (HA-VSMCs). AD tissues and platelet-derived growth factor BB (PDGF-BB)-stimulated HA-VSMCs show significant downregulation of miR-335-5p expression and upregulated SP1 expression. Overexpression of miR-335-5p effectively suppresses cell proliferation, migration and synthetic phenotype markers and enhances contractile phenotype markers induced by PDGF-BB treatment. Additionally, SP1 is identified as a target gene downstream of miR-335-5p, and its expression is negatively correlated with miR-335-5p in AD. Upregulation of SP1 partially reverses the inhibitory effect of miR-335-5p on HA-VSMCs, whereas the downregulation of SP1 has the opposite effect. Furthermore, Ad-miR-335-5p clearly suppresses aorta dilatation and vascular media degeneration in the AD model. Our results suggest that miR-335-5p inhibits HA-VSMC proliferation, migration and phenotypic switching by negatively regulating SP1, and indicate that miR-335-5p may be a potential therapeutic target in AD.
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15
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Parnigoni A, Viola M, Karousou E, Rovera S, Giaroni C, Passi A, Vigetti D. ROLE OF HYALURONAN IN PATHOPHYSIOLOGY OF VASCULAR1 ENDOTHELIAL AND SMOOTH MUSCLE CELLS. Am J Physiol Cell Physiol 2022; 323:C505-C519. [PMID: 35759431 DOI: 10.1152/ajpcell.00061.2022] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
One of the main components of the extracellular matrix (ECM) of the blood vessel is hyaluronic acid or hyaluronan (HA). It is a ubiquitous polysaccharide belonging to the family of glycosaminoglycans, but, differently from other proteoglycan-associated glycosaminoglycans, it is synthesized on the plasma membrane by a family of three HA synthases (HAS). HA can be released as a free polymer in the extracellular space or remain associated with the membrane in the pericellular space via HAS or via binding proteins. In fact, several cell surface proteins can interact with HA working as HA receptors like CD44, RHAMM, and LYVE-1. In physiological conditions, HA is localized in the glycocalyx and in the adventitia and is responsible for the loose and hydrated vascular structure favoring flexibility and allowing the stretching of vessels in response to mechanical forces. During atherogenesis, ECM undergoes dramatic alterations which have a crucial role in lipoprotein retention and in triggering multiple signaling cascades that wake up cells from their quiescent status. HA becomes highly present in the media and neointima favoring smooth muscle cells dedifferentiation, migration, and proliferation that strongly contribute to vessel wall thickening. Further, HA is able to modulate immune cell recruitment both within the vessel wall and on the endothelial cell layer. This review is focused on the effects of HA on vascular cell behavior.
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Affiliation(s)
- Arianna Parnigoni
- Department of Medicine and Surgery, University of Insubria, Varese, Italy
| | - Manuela Viola
- Department of Medicine and Surgery, University of Insubria, Varese, Italy
| | - Evgenia Karousou
- Department of Medicine and Surgery, University of Insubria, Varese, Italy
| | - Simona Rovera
- Department of Medicine and Surgery, University of Insubria, Varese, Italy
| | - Cristina Giaroni
- Department of Medicine and Surgery, University of Insubria, Varese, Italy
| | - Alberto Passi
- Department of Medicine and Surgery, University of Insubria, Varese, Italy
| | - Davide Vigetti
- Department of Medicine and Surgery, University of Insubria, Varese, Italy
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16
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Lu LY, Pan N, Huang ZH, Wang JS, Tang YB, Sun HS, Han H, Yang HY, Zhu JZ, Guan YY, Zhang B, Li DZ, Wang GL. CFTR Suppresses Neointimal Formation Through Attenuating Proliferation and Migration of Aortic Smooth Muscle Cells. J Cardiovasc Pharmacol 2022; 79:914-924. [PMID: 35266910 PMCID: PMC9162269 DOI: 10.1097/fjc.0000000000001257] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Accepted: 02/06/2022] [Indexed: 12/14/2022]
Abstract
ABSTRACT Cystic fibrosis transmembrane conductance regulator (CFTR) plays important roles in arterial functions and the fate of cells. To further understand its function in vascular remodeling, we examined whether CFTR directly regulates platelet-derived growth factor-BB (PDGF-BB)-stimulated vascular smooth muscle cells (VSMCs) proliferation and migration, as well as the balloon injury-induced neointimal formation. The CFTR adenoviral gene delivery was used to evaluate the effects of CFTR on neointimal formation in a rat model of carotid artery balloon injury. The roles of CFTR in PDGF-BB-stimulated VSMC proliferation and migration were detected by mitochondrial tetrazolium assay, wound healing assay, transwell chamber method, western blot, and qPCR. We found that CFTR expression was declined in injured rat carotid arteries, while adenoviral overexpression of CFTR in vivo attenuated neointimal formation in carotid arteries. CFTR overexpression inhibited PDGF-BB-induced VSMC proliferation and migration, whereas CFTR silencing caused the opposite results. Mechanistically, CFTR suppressed the phosphorylation of PDGF receptor β, serum and glucocorticoid-inducible kinase 1, JNK, p38 and ERK induced by PDGF-BB, and the increased mRNA expression of matrix metalloproteinase-9 and MMP2 induced by PDGF-BB. In conclusion, our results indicated that CFTR may attenuate neointimal formation by suppressing PDGF-BB-induced activation of serum and glucocorticoid-inducible kinase 1 and the JNK/p38/ERK signaling pathway.
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Affiliation(s)
- Liu-Yi Lu
- Institute of Pediatrics, Guangzhou Women and Children's Medical Centre, Guangzhou Medical University, Guangzhou, China
| | - Ni Pan
- Institute of Pediatrics, Guangzhou Women and Children's Medical Centre, Guangzhou Medical University, Guangzhou, China
| | - Ze-Han Huang
- Department of Pharmacology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Jing-Song Wang
- Vascular surgery department, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Science, Guangzhou, China; and
| | - Yong-Bo Tang
- Department of Pharmacology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Hong-Shuo Sun
- Departments of Surgery, Physiology and Pharmacology, Institute of Medical Science, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Hui Han
- Department of Pharmacology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Han-Yan Yang
- Department of Pharmacology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Jun-Zhen Zhu
- Department of Pharmacology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Yong-Yuan Guan
- Department of Pharmacology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Bin Zhang
- Department of Pharmacology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Dong-Zhi Li
- Prenatal Diagnostic Center, Guangzhou Women and Children Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Guan-Lei Wang
- Institute of Pediatrics, Guangzhou Women and Children's Medical Centre, Guangzhou Medical University, Guangzhou, China
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17
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Chakraborty R, Chatterjee P, Dave JM, Ostriker AC, Greif DM, Rzucidlo EM, Martin KA. Targeting smooth muscle cell phenotypic switching in vascular disease. JVS Vasc Sci 2021; 2:79-94. [PMID: 34617061 PMCID: PMC8489222 DOI: 10.1016/j.jvssci.2021.04.001] [Citation(s) in RCA: 61] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Accepted: 04/01/2021] [Indexed: 12/26/2022] Open
Abstract
Objective The phenotypic plasticity of vascular smooth muscle cells (VSMCs) is central to vessel growth and remodeling, but also contributes to cardiovascular pathologies. New technologies including fate mapping, single cell transcriptomics, and genetic and pharmacologic inhibitors have provided fundamental new insights into the biology of VSMC. The goal of this review is to summarize the mechanisms underlying VSMC phenotypic modulation and how these might be targeted for therapeutic benefit. Methods We summarize findings from extensive literature searches to highlight recent discoveries in the mechanisms underlying VSMC phenotypic switching with particular relevance to intimal hyperplasia. PubMed was searched for publications between January 2001 and December 2020. Search terms included VSMCs, restenosis, intimal hyperplasia, phenotypic switching or modulation, and drug-eluting stents. We sought to highlight druggable pathways as well as recent landmark studies in phenotypic modulation. Results Lineage tracing methods have determined that a small number of mature VSMCs dedifferentiate to give rise to oligoclonal lesions in intimal hyperplasia and atherosclerosis. In atherosclerosis and aneurysm, single cell transcriptomics reveal a striking diversity of phenotypes that can arise from these VSMCs. Mechanistic studies continue to identify new pathways that influence VSMC phenotypic plasticity. We review the mechanisms by which the current drug-eluting stent agents prevent restenosis and note remaining challenges in peripheral and diabetic revascularization for which new approaches would be beneficial. We summarize findings on new epigenetic (DNA methylation/TET methylcytosine dioxygenase 2, histone deacetylation, bromodomain proteins), transcriptional (Hippo/Yes-associated protein, peroxisome proliferator-activity receptor-gamma, Notch), and β3-integrin-mediated mechanisms that influence VSMC phenotypic modulation. Pharmacologic and genetic targeting of these pathways with agents including ascorbic acid, histone deacetylase or bromodomain inhibitors, thiazolidinediones, and integrin inhibitors suggests potential therapeutic value in the setting of intimal hyperplasia. Conclusions Understanding the molecular mechanisms that underlie the remarkable plasticity of VSMCs may lead to novel approaches to treat and prevent cardiovascular disease and restenosis.
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Affiliation(s)
- Raja Chakraborty
- Department of Medicine, Section of Cardiovascular Medicine, Yale University School of Medicine, New Haven, Conn.,Department of Pharmacology, Yale University School of Medicine, New Haven, Conn
| | - Payel Chatterjee
- Department of Medicine, Section of Cardiovascular Medicine, Yale University School of Medicine, New Haven, Conn.,Department of Pharmacology, Yale University School of Medicine, New Haven, Conn
| | - Jui M Dave
- Department of Medicine, Section of Cardiovascular Medicine, Yale University School of Medicine, New Haven, Conn.,Department of Genetics, Yale University School of Medicine, New Haven, Conn
| | - Allison C Ostriker
- Department of Medicine, Section of Cardiovascular Medicine, Yale University School of Medicine, New Haven, Conn.,Department of Pharmacology, Yale University School of Medicine, New Haven, Conn
| | - Daniel M Greif
- Department of Medicine, Section of Cardiovascular Medicine, Yale University School of Medicine, New Haven, Conn.,Department of Genetics, Yale University School of Medicine, New Haven, Conn
| | - Eva M Rzucidlo
- Department Surgery, Section of Vascular Surgery, McLeod Regional Medical Center, Florence, SC
| | - Kathleen A Martin
- Department of Medicine, Section of Cardiovascular Medicine, Yale University School of Medicine, New Haven, Conn.,Department of Pharmacology, Yale University School of Medicine, New Haven, Conn
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18
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Kraler S, Libby P, Evans PC, Akhmedov A, Schmiady MO, Reinehr M, Camici GG, Lüscher TF. Resilience of the Internal Mammary Artery to Atherogenesis: Shifting From Risk to Resistance to Address Unmet Needs. Arterioscler Thromb Vasc Biol 2021; 41:2237-2251. [PMID: 34107731 PMCID: PMC8299999 DOI: 10.1161/atvbaha.121.316256] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Fueled by the global surge in aging, atherosclerotic cardiovascular disease reached pandemic dimensions putting affected individuals at enhanced risk of myocardial infarction, stroke, and premature death. Atherosclerosis is a systemic disease driven by a wide spectrum of factors, including cholesterol, pressure, and disturbed flow. Although all arterial beds encounter a similar atherogenic milieu, the development of atheromatous lesions occurs discontinuously across the vascular system. Indeed, the internal mammary artery possesses unique biological properties that confer protection to intimal growth and atherosclerotic plaque formation, thus making it a conduit of choice for coronary artery bypass grafting. Its endothelium abundantly expresses nitric oxide synthase and shows accentuated nitric oxide release, while its vascular smooth muscle cells exhibit reduced tissue factor expression, high tPA (tissue-type plasminogen activator) production and blunted migration and proliferation, which may collectively mitigate intimal thickening and ultimately the evolution of atheromatous plaques. We aim here to provide insights into the anatomy, physiology, cellular, and molecular aspects of the internal mammary artery thereby elucidating its remarkable resistance to atherogenesis. We propose a change in perspective from risk to resilience to decipher mechanisms of atheroresistance and eventually identification of novel therapeutic targets presently not addressed by currently available remedies.
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Affiliation(s)
- Simon Kraler
- Center for Molecular Cardiology, University of Zürich, 8952 Schlieren, Switzerland
| | - Peter Libby
- Division of Cardiovascular Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, USA
| | - Paul C. Evans
- Department of Infection, Immunity and Cardiovascular Disease, University of Sheffield, Sheffield, UK
| | - Alexander Akhmedov
- Center for Molecular Cardiology, University of Zürich, 8952 Schlieren, Switzerland
| | - Martin O. Schmiady
- Clinic for Cardiac Surgery, University Heart Centre, University Hospital Zurich, Zurich, Switzerland
| | - Michael Reinehr
- Institute of Pathology and Molecular Pathology, University Hospital Zurich, Zurich, Switzerland
| | - Giovanni G. Camici
- Center for Molecular Cardiology, University of Zürich, 8952 Schlieren, Switzerland
- University Heart Center, Department of Cardiology, University Hospital, Zurich, Switzerland
- Department of Research and Education, University Hospital Zurich, Zurich, Switzerland
| | - Thomas F. Lüscher
- Center for Molecular Cardiology, University of Zürich, 8952 Schlieren, Switzerland
- Royal Brompton and Harefield Hospitals and Imperial College, London, United Kingdom
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Preventive Effect and Mechanism of Crossostephium chinense Extract on Balloon Angioplasty-Induced Neointimal Hyperplasia. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2021; 2021:8466543. [PMID: 34306155 PMCID: PMC8266445 DOI: 10.1155/2021/8466543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Accepted: 06/22/2021] [Indexed: 11/18/2022]
Abstract
Balloon angioplasty-induced neointimal hyperplasia remains a clinical problem that must be resolved. The bioactivities of the Crossostephium chinense extract (CCE) have demonstrated potential in preventing the progression of restenosis. The present study evaluated whether CCE can suppress balloon angioplasty-induced neointima formation and elucidated its possible pharmacological mechanisms. A rat model of carotid arterial balloon angioplasty was established to evaluate the inhibitory effect of CCEs on neointimal hyperplasia. Two cell lines, A10 vascular smooth muscle cells (VSMCs) and RAW264.7 macrophages, were used to investigate the potential regulatory activities and pharmacological mechanisms of CCEs in cell proliferation and migration and in inflammation. Our in vitro results indicated that CCE3, the ethanolic extract of C. chinense, exerted the strongest growth inhibitory and antimigratory effects on VSMCs. CCE3 blocked the activation of focal adhesion kinase, platelet-derived growth factor receptor-β (PDGFRB), and its downstream molecules (AKT and mTOR) and reduced the expression of matrix metalloproteinase-2. In addition, our findings revealed that CCE3 significantly increased the expression of miRNA-132, an inhibitory regulator of inflammation and restenosis, and suppressed the expression of inflammation-related molecules (inducible nitric oxide synthase, cyclooxygenase-2, interleukin- (IL-) 1β, and IL-6). Our in vivo study results indicated that balloon injury-induced neointimal hyperplasia was inhibited by CCE3. CCE3 could reduce neointima formation in balloon-injured arteries, and this effect may be partially attributed to the CCE3-induced suppression of PDGFRB-mediated downstream pathways and inflammation-related molecules.
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20
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Siwik D, Gajewska M, Karoń K, Pluta K, Wondołkowski M, Wilimski R, Szarpak Ł, Filipiak KJ, Gąsecka A. Pleiotropic Effects of Acetylsalicylic Acid after Coronary Artery Bypass Grafting-Beyond Platelet Inhibition. J Clin Med 2021; 10:2317. [PMID: 34073241 PMCID: PMC8198192 DOI: 10.3390/jcm10112317] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 05/18/2021] [Accepted: 05/22/2021] [Indexed: 01/05/2023] Open
Abstract
Acetylsalicylic acid (ASA) is one of the most frequently used medications worldwide. Yet, the main indications for ASA are the atherosclerosis-based cardiovascular diseases, including coronary artery disease (CAD). Despite the increasing number of percutaneous procedures to treat CAD, coronary artery bypass grafting (CABG) remains the treatment of choice in patients with multivessel CAD and intermediate or high anatomical lesion complexity. Taking into account that CABG is a potent activator of inflammation, ASA is an important part in the postoperative therapy, not only due to ASA antiplatelet action, but also as an anti-inflammatory agent. Additional benefits of ASA after CABG include anticancerogenic, hypotensive, antiproliferative, anti-osteoporotic, and neuroprotective effects, which are especially important in patients after CABG, prone to hypertension, graft occlusion, atherosclerosis progression, and cognitive impairment. Here, we discuss the pleiotropic effects of ASA after CABG and provide insights into the mechanisms underlying the benefits of treatment with ASA, beyond platelet inhibition. Since some of ASA pleiotropic effects seem to increase the risk of bleeding, it could be considered a starting point to investigate whether the increase of the intensity of the treatment with ASA after CABG is beneficial for the CABG group of patients.
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Affiliation(s)
- Dominika Siwik
- 1st Chair and Department of Cardiology, Medical University of Warsaw, Banacha 1a, 02-097 Warsaw, Poland; (D.S.); (M.G.); (K.K.); (K.P.); (K.J.F.)
| | - Magdalena Gajewska
- 1st Chair and Department of Cardiology, Medical University of Warsaw, Banacha 1a, 02-097 Warsaw, Poland; (D.S.); (M.G.); (K.K.); (K.P.); (K.J.F.)
| | - Katarzyna Karoń
- 1st Chair and Department of Cardiology, Medical University of Warsaw, Banacha 1a, 02-097 Warsaw, Poland; (D.S.); (M.G.); (K.K.); (K.P.); (K.J.F.)
| | - Kinga Pluta
- 1st Chair and Department of Cardiology, Medical University of Warsaw, Banacha 1a, 02-097 Warsaw, Poland; (D.S.); (M.G.); (K.K.); (K.P.); (K.J.F.)
| | - Mateusz Wondołkowski
- Department of Cardiac Surgery, Medical University of Warsaw, 02-097 Warsaw, Poland; (M.W.); (R.W.)
| | - Radosław Wilimski
- Department of Cardiac Surgery, Medical University of Warsaw, 02-097 Warsaw, Poland; (M.W.); (R.W.)
| | - Łukasz Szarpak
- Bialystok Oncology Center, 15-027 Bialystok, Poland;
- Maria Sklodowska-Curie Medical Academy in Warsaw, 00-001 Warsaw, Poland
| | - Krzysztof J. Filipiak
- 1st Chair and Department of Cardiology, Medical University of Warsaw, Banacha 1a, 02-097 Warsaw, Poland; (D.S.); (M.G.); (K.K.); (K.P.); (K.J.F.)
| | - Aleksandra Gąsecka
- 1st Chair and Department of Cardiology, Medical University of Warsaw, Banacha 1a, 02-097 Warsaw, Poland; (D.S.); (M.G.); (K.K.); (K.P.); (K.J.F.)
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21
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Ouyang C, Li J, Zheng X, Mu J, Torres G, Wang Q, Zou MH, Xie Z. Deletion of Ulk1 inhibits neointima formation by enhancing KAT2A/GCN5-mediated acetylation of TUBA/α-tubulin in vivo. Autophagy 2021; 17:4305-4322. [PMID: 33985412 DOI: 10.1080/15548627.2021.1911018] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
ULK1 (unc-51 like autophagy activating kinase) has a central role in initiating macroautophagy/autophagy, a process that contributes to atherosclerosis and neointima hyperplasia, or excessive tissue growth that leads to vessel dysfunction. However, the role of ULK1 in neointima formation remains unclear. We aimed to determine how Ulk1 deletion affected neointima formation and to investigate the underlying mechanisms. We measured autophagy activity, vascular smooth muscle cell (VSMC) migration and neointima hyperplasia in cultured VSMCs and ligation-injured mouse carotid arteries from male wild-type (WT, C57BL/6 J) and VSMC-specific ulk1 knockout (ulk1 KO) mice. Carotid artery ligation in WT mice increased ULK1 protein expression, and concurrently increased autophagic flux and neointima formation. Treating human aortic smooth muscle cells (HASMCs) with PDGF (platelet derived growth factor) increased ULK1 expression, activated autophagy, and promoted cell migration. Further, smooth muscle cell-specific deletion of Ulk1 suppressed autophagy, inhibited VSMC migration, and impeded neointima hyperplasia. Mechanistically, Ulk1 deletion inhibited autophagic degradation of histone acetyltransferase protein KAT2A/GCN5 (K[lysine] acetyltransferase 2A), resulting in accumulation of KAT2A that directly acetylated TUBA/α-tubulin and subsequently increased protein levels of acetylated TUBA. The acetylation of TUBA increased microtubule stability and inhibited VSMC directional migration and neointima formation. Finally, local transfection of Kat2a siRNA decreased TUBA acetylation and prevented the attenuation of vascular injury-induced neointima formation in ulk1 KO mice. These findings suggest that Ulk1 deletion inhibits neointima formation by reducing autophagic degradation of KAT2A and increasing TUBA acetylation in VSMCs.Abbreviations: ACTA2/α-SMA: actin, alpha 2, smooth muscle, aorta; ACTB: actin beta; ATAT1: alpha tubulin acetyltransferase 1; ATG: autophagy related; BECN1: beclin 1; BP: blood pressure; CAL: carotid artery ligation; CQ: chloroquine diphosphate; EC: endothelial cells; EEL: external elastic layer; FBS: fetal bovine serum; GAPDH: glyceraldehyde 3-phosphate dehydrogenase; HASMCs: human aortic smooth muscle cells; HAT1: histone acetyltransferase 1; HDAC: histone deacetylase; IEL: inner elastic layer; IP: immunoprecipitation; KAT2A/GCN5: K(lysine) acetyltransferase 2A; KAT8/hMOF: lysine acetyltransferase 8; MAP1LC3: microtubule associated protein 1 light chain 3; MYH11: myosin heavy chain 11; PBS: phosphate-buffered saline; PDGF: platelet derived growth factor; PECAM1/CD31: platelet and endothelial cell adhesion molecule 1; RAC3: Rac family small GTPase 3; SIRT2: sirtuin 2; SPP1/OPN: secreted phosphoprotein 1; SQSTM1/p62: sequestosome 1; TAGLN/SM22: transgelin; TUBA: tubulin alpha; ULK1: unc-51 like autophagy activating kinase; VSMC: vascular smooth muscle cell; VVG: Verhoeff Van Gieson; WT: wild type.
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Affiliation(s)
- Changhan Ouyang
- Hubei Key Laboratory of Cardiovascular, Cerebrovascular and Metabolic Disorders, Hubei University of Science and Technology, Xianning, China
| | - Jian Li
- Center of Molecular and Translational Medicine, Georgia State University, Atlanta, Georgia
| | - Xiaoxu Zheng
- Center of Molecular and Translational Medicine, Georgia State University, Atlanta, Georgia
| | - Jing Mu
- Center of Molecular and Translational Medicine, Georgia State University, Atlanta, Georgia
| | - Gloria Torres
- Center of Molecular and Translational Medicine, Georgia State University, Atlanta, Georgia
| | - Qilong Wang
- Center of Molecular and Translational Medicine, Georgia State University, Atlanta, Georgia
| | - Ming-Hui Zou
- Center of Molecular and Translational Medicine, Georgia State University, Atlanta, Georgia
| | - Zhonglin Xie
- Center of Molecular and Translational Medicine, Georgia State University, Atlanta, Georgia
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22
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Wang X, Wu J, Zhang H, Sun B, Huang R. Dihydroartemisinin ameliorates balloon injury-induced neointimal formation through suppressing autophagy in vascular smooth muscle cells. Biol Chem 2021; 402:451-460. [PMID: 33938177 DOI: 10.1515/hsz-2020-0233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Accepted: 11/26/2020] [Indexed: 11/15/2022]
Abstract
The present study was designed to investigate the therapeutic effects of injection of dihydroartemisinin (DHA) into the balloon-injured carotid arteries on balloon injury-induced neointimal formation and to explore whether autophagy is involved in the action of DHA. Percutaneous transluminal balloon angioplasty was performed in Sprague-Dawley rats to induce neointimal formation, immediately after which DHA (100 μmol/l × 1 ml) and/or Rapamycin (1 mg/100 μl), were injected into the balloon-injured carotid arteries. After 14 days, the serum samples and carotid artery tissues were harvested for analysis. Rat aortic vascular smooth muscle cells (VSMCs) were pretreated with DMSO (vehicle), DHA (1, 10, and 100 μmol/l), or 3-methyladenine (3-MA; 10 mM) for 1 h and then stimulated with platelet-derived growth factor-BB (PDGF-BB; 10 ng/ml) for another 24 h. Animal experiments showed that DHA attenuated the balloon injury-induced neointimal formation, inflammation and VSMC phenotypic transition by inhibiting the balloon injury-induced autophagy activation. In vitro results showed that DHA attenuated the PDGF-BB-induced VSMC phenotypic transition, proliferation, and migration by inhibiting the PDGF-BB-induced autophagy activation. Taken together, DHA ameliorates balloon injury-induced neointimal formation through suppressing autophagy. This study provides insights into the development of a drug-eluting stent using DHA.
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Affiliation(s)
- Xiaoyuan Wang
- Department of Ophthalmology, The First Affiliated Hospital of Harbin Medical University, Harbin 150001, Heilongjiang, China
| | - Junpeng Wu
- Department of General Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin 150001, Heilongjiang, China
| | - Haiyang Zhang
- Key Laboratory of Hepatosplenic Surgery, Ministry of Education, Harbin Medical University, The First Affiliated Hospital of Harbin Medical University, Harbin 150001, Heilongjiang, China
| | - Bei Sun
- Department of Pancreatic and Biliary Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin 150001, Heilongjiang, China
| | - Renping Huang
- Department of General Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin 150001, Heilongjiang, China
- Key Laboratory of Hepatosplenic Surgery, Ministry of Education, Harbin Medical University, The First Affiliated Hospital of Harbin Medical University, Harbin 150001, Heilongjiang, China
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23
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Osman I, Dong K, Kang X, Yu L, Xu F, Ahmed ASI, He X, Shen J, Hu G, Zhang W, Zhou J. YAP1/TEAD1 upregulate platelet-derived growth factor receptor beta to promote vascular smooth muscle cell proliferation and neointima formation. J Mol Cell Cardiol 2021; 156:20-32. [PMID: 33753119 DOI: 10.1016/j.yjmcc.2021.03.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 02/22/2021] [Accepted: 03/13/2021] [Indexed: 12/19/2022]
Abstract
We have previously demonstrated that the transcription co-factor yes-associated protein 1 (YAP1) promotes vascular smooth muscle cell (VSMC) de-differentiation. Yet, the role and underlying mechanisms of YAP1 in neointima formation in vivo remain unclear. The goal of this study was to investigate the role of VSMC-expressed YAP1 in vascular injury-induced VSMC proliferation and delineate the mechanisms underlying its action. Experiments employing gain- or loss-of-function of YAP1 demonstrated that YAP1 promotes human VSMC proliferation. Mechanistically, we identified platelet-derived growth factor receptor beta (PDGFRB) as a novel YAP1 target gene that confers the YAP1-dependent hyper-proliferative effects in VSMCs. Furthermore, we identified TEA domain transcription factor 1 (TEAD1) as a key transcription factor that mediates YAP1-dependent PDGFRβ expression. ChIP assays demonstrated that TEAD1 is enriched at a PDGFRB gene enhancer. Luciferase reporter assays further demonstrated that YAP1 and TEAD1 co-operatively activate the PDGFRB enhancer. Consistent with these observations, we found that YAP1 expression is upregulated after arterial injury and correlates with PDGFRβ expression and VSMC proliferation in vivo. Using a novel inducible SM-specific Yap1 knockout mouse model, we found that the specific deletion of Yap1 in adult VSMCs is sufficient to attenuate arterial injury-induced neointima formation, largely due to inhibited PDGFRβ expression and VSMC proliferation. Our study unravels a novel mechanism by which YAP1/TEAD1 promote VSMC proliferation via transcriptional induction of PDGFRβ, thereby enhancing PDGF-BB downstream signaling and promoting neointima formation.
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Affiliation(s)
- Islam Osman
- Department of Pharmacology and Toxicology, Medical College of Georgia, Augusta University, Augusta, GA 30912, United States
| | - Kunzhe Dong
- Department of Pharmacology and Toxicology, Medical College of Georgia, Augusta University, Augusta, GA 30912, United States
| | - Xiuhua Kang
- Department of Respiratory Medicine, The First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi, China
| | - Luyi Yu
- Department of Respiratory Medicine, The First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi, China
| | - Fei Xu
- Department of Respiratory Medicine, The First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi, China
| | - Abu Shufian Ishtiaq Ahmed
- Department of Pharmacology and Toxicology, Medical College of Georgia, Augusta University, Augusta, GA 30912, United States
| | - Xiangqin He
- Department of Pharmacology and Toxicology, Medical College of Georgia, Augusta University, Augusta, GA 30912, United States
| | - Jian Shen
- Department of Pharmacology and Toxicology, Medical College of Georgia, Augusta University, Augusta, GA 30912, United States
| | - Guoqing Hu
- Department of Pharmacology and Toxicology, Medical College of Georgia, Augusta University, Augusta, GA 30912, United States
| | - Wei Zhang
- Department of Respiratory Medicine, The First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi, China
| | - Jiliang Zhou
- Department of Pharmacology and Toxicology, Medical College of Georgia, Augusta University, Augusta, GA 30912, United States.
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24
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Kim JH, Lee GY, Maeng HJ, Kim H, Bae JH, Kim KM, Lim S. Effects of Glucagon-Like Peptide-1 Analogue and Fibroblast Growth Factor 21 Combination on the Atherosclerosis-Related Process in a Type 2 Diabetes Mouse Model. Endocrinol Metab (Seoul) 2021; 36:157-170. [PMID: 33677937 PMCID: PMC7937856 DOI: 10.3803/enm.2020.781] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Accepted: 12/04/2020] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Glucagon-like peptide-1 (GLP-1) analogues regulate glucose homeostasis and have anti-inflammatory properties, but cause gastrointestinal side effects. The fibroblast growth factor 21 (FGF21) is a hormonal regulator of lipid and glucose metabolism that has poor pharmacokinetic properties, including a short half-life. To overcome these limitations, we investigated the effect of a low-dose combination of a GLP-1 analogue and FGF21 on atherosclerosis-related molecular pathways. METHODS C57BL/6J mice were fed a high-fat diet for 30 weeks followed by an atherogenic diet for 10 weeks and were divided into four groups: control (saline), liraglutide (0.3 mg/kg/day), FGF21 (5 mg/kg/day), and low-dose combination treatment with liraglutide (0.1 mg/kg/day) and FGF21 (2.5 mg/kg/day) (n=6/group) for 6 weeks. The effects of each treatment on various atherogenesisrelated pathways were assessed. RESULTS Liraglutide, FGF21, and their low-dose combination significantly reduced atheromatous plaque in aorta, decreased weight, glucose, and leptin levels, and increased adiponectin levels. The combination treatment upregulated the hepatic uncoupling protein-1 (UCP1) and Akt1 mRNAs compared with controls. Matric mentalloproteinase-9 (MMP-9), monocyte chemoattractant protein-1 (MCP-1), and intercellular adhesion molecule-1 (ICAM-1) were downregulated and phosphorylated Akt (p-Akt) and phosphorylated extracellular signal-regulated kinase (p-ERK) were upregulated in liver of the liraglutide-alone and combination-treatment groups. The combination therapy also significantly decreased the proliferation of vascular smooth muscle cells. Caspase-3 was increased, whereas MMP-9, ICAM-1, p-Akt, and p-ERK1/2 were downregulated in the liraglutide-alone and combination-treatment groups. CONCLUSION Administration of a low-dose GLP-1 analogue and FGF21 combination exerts beneficial effects on critical pathways related to atherosclerosis, suggesting the synergism of the two compounds.
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Affiliation(s)
- Jin Hee Kim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
| | - Gha Young Lee
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
| | - Hyo Jin Maeng
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
| | - Hoyoun Kim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
| | - Jae Hyun Bae
- Department of Internal Medicine, Korea University Anam Hospital, Korea University College of Medicine, Seoul, Korea
| | - Kyoung Min Kim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
| | - Soo Lim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
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25
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Wang Y, Xu Y, Yan S, Cao K, Zeng X, Zhou Y, Liu Z, Yang Q, Pan Y, Wang X, Boison D, Su Y, Jiang X, Patel VS, Fulton D, Weintraub NL, Huo Y. Adenosine kinase is critical for neointima formation after vascular injury by inducing aberrant DNA hypermethylation. Cardiovasc Res 2021; 117:561-575. [PMID: 32065618 PMCID: PMC7820850 DOI: 10.1093/cvr/cvaa040] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2019] [Revised: 01/20/2020] [Accepted: 02/12/2020] [Indexed: 12/21/2022] Open
Abstract
AIMS Adenosine receptors and extracellular adenosine have been demonstrated to modulate vascular smooth muscle cell (VSMC) proliferation and neointima formation. Adenosine kinase (ADK) is a major enzyme regulating intracellular adenosine levels but is function in VSMC remains unclear. Here, we investigated the role of ADK in vascular injury-induced smooth muscle proliferation and delineated the mechanisms underlying its action. METHODS AND RESULTS We found that ADK expression was higher in the neointima of injured vessels and in platelet-derived growth factor-treated VSMCs. Genetic and pharmacological inhibition of ADK was enough to attenuate arterial injury-induced neointima formation due to inhibition of VSMC proliferation. Mechanistically, using infinium methylation assays and bisulfite sequencing, we showed that ADK metabolized the intracellular adenosine and potentiated the transmethylation pathway, then induced the aberrant DNA hypermethylation. Pharmacological inhibition of aberrant DNA hypermethylation increased KLF4 expression and suppressed VSMC proliferation as well as the neointima formation. Importantly, in human femoral arteries, we observed increased ADK expression and DNA hypermethylation as well as decreased KLF4 expression in neointimal VSMCs of stenotic vessels suggesting that our findings in mice are relevant for human disease and may hold translational significance. CONCLUSION Our study unravels a novel mechanism by which ADK promotes VSMC proliferation via inducing aberrant DNA hypermethylation, thereby down-regulating KLF4 expression and promoting neointima formation. These findings advance the possibility of targeting ADK as an epigenetic modulator to combat vascular injury.
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Affiliation(s)
- Yong Wang
- College of Basic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA, USA
| | - Yiming Xu
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA, USA
- The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan People’s Hospital; State Key Lab of Respiratory Disease; School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Siyuan Yan
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Science, Beijing, China
| | - Kaixiang Cao
- The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan People’s Hospital; State Key Lab of Respiratory Disease; School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Xianqiu Zeng
- Key Laboratory of Chemical Genomics, Peking University Shenzhen Graduate School, Shenzhen, Guangdong, China
| | - Yaqi Zhou
- Key Laboratory of Chemical Genomics, Peking University Shenzhen Graduate School, Shenzhen, Guangdong, China
| | - Zhiping Liu
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA, USA
- Key Laboratory of Chemical Genomics, Peking University Shenzhen Graduate School, Shenzhen, Guangdong, China
| | - Qiuhua Yang
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA, USA
- Key Laboratory of Chemical Genomics, Peking University Shenzhen Graduate School, Shenzhen, Guangdong, China
| | - Yue Pan
- Georgia Prevention Institute, Augusta University, Augusta, GA, USA
| | - Xiaoling Wang
- Georgia Prevention Institute, Augusta University, Augusta, GA, USA
| | - Detlev Boison
- Robert S. Dow Neurobiology Laboratories, Legacy Research Institute, Portland, OR, USA
| | - Yunchao Su
- Department of Pharmacology and Toxicology, Medical College of Georgia, Augusta University, Augusta, GA, USA
| | - Xuejun Jiang
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Science, Beijing, China
| | - Vijay S Patel
- Department of Anesthesiology and Perioperative Medicine, Augusta University, Augusta, GA, USA
| | - David Fulton
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA, USA
| | - Neal L Weintraub
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA, USA
| | - Yuqing Huo
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA, USA
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26
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Kim JH. Glucagon-like peptide-1 receptor agonist reduces di(2-ethylhexyl) phthalate-induced atherosclerotic processes in vascular smooth muscle cells. Physiol Res 2020; 69:1095-1102. [PMID: 33129247 DOI: 10.33549/physiolres.934480] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Glucagon-like peptide-1 receptor (GLP1R) agonist is an incretin hormone and regulates glucose metabolism. However, phthalates, known as endocrine disruptors, can interfere with hormone homeostasis. In the present study, we aimed to estimate the impact of GLP1R agonist on di(2 ethylhexyl) phthalate (DEHP)-induced atherosclerosis. For this purpose, the effects of GLP1R agonist on various atherogenesis-related cellular processes and pathways were assessed in vascular smooth muscle cells (VSMCs). DEHP-induced cell proliferation and migration were significantly decreased by GLP1R agonist in VSMCs. Protein levels of matrix metalloproteinase (MMP)-2 and MMP-9 were significantly decreased in cells exposed to GLP1R agonist, compared with DEHP-treated cells. Expression levels of intercellular adhesion molecule 1 and vascular cell adhesion molecule 1 were also reduced in GLP1R agonist-treated cells. Similarly, DEHP-associated phosphorylation of protein kinase B and extracellular signal-regulated kinase 1/2 was decreased in GLP1R agonist-treated cells, compared with DEHP-treated cells. Our findings suggest that treatment with GLP1R agonist counteracts the activation of pathways related to atherosclerosis.
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Affiliation(s)
- Jin Hee Kim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, South Korea.
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Reda M, Noel C, Settembre N, Chambert J, Lejeune A, Jacquet E. Agent-based modelling of the smooth muscle cells migration induced by mechanical vibration: a preliminary study. Comput Methods Biomech Biomed Engin 2020. [DOI: 10.1080/10255842.2020.1815326] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- M. Reda
- Institut national de recherche et de sécurité (INRS), Vandoeuvre-Lès-Nancy, France
- Department of Applied Mechanics, Univ. Bourgogne Franche-Comté, FEMTO-ST Institute UFC/CNRS/ENSMM/UTBM, Besançon, France
| | - C. Noel
- Institut national de recherche et de sécurité (INRS), Vandoeuvre-Lès-Nancy, France
| | - N. Settembre
- Department of Vascular Surgery, Nancy University Hospital, Nancy, France
| | - J. Chambert
- Department of Applied Mechanics, Univ. Bourgogne Franche-Comté, FEMTO-ST Institute UFC/CNRS/ENSMM/UTBM, Besançon, France
| | - A. Lejeune
- Department of Applied Mechanics, Univ. Bourgogne Franche-Comté, FEMTO-ST Institute UFC/CNRS/ENSMM/UTBM, Besançon, France
| | - E. Jacquet
- Department of Applied Mechanics, Univ. Bourgogne Franche-Comté, FEMTO-ST Institute UFC/CNRS/ENSMM/UTBM, Besançon, France
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Seong JH, Song YS, Joo HW, Park IH, Shen GY, Shin NK, Lee AH, Kwon AM, Lee Y, Kim H, Kim KS. Modified method for effective primary vascular smooth muscle progenitor cell culture from peripheral blood. Cytotechnology 2020; 72:763-772. [PMID: 32909140 PMCID: PMC7547929 DOI: 10.1007/s10616-020-00419-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Accepted: 09/02/2020] [Indexed: 11/24/2022] Open
Abstract
In previous studies, vascular smooth muscle progenitor cells (vSMPCs) isolated from peripheral blood mononuclear cells (PBMCs) were cultured using medium containing platelet-derived growth factor-BB (PDGF-BB) for 4 weeks. However, this method requires long culture periods of up to 4 weeks and yields low cell counts. Therefore, we proposed the modified method to improve the cell yield and purity and to reduce the cell culture period. PBMCs were isolated from human peripheral blood and cultured by the conventional method using medium containing PDGF-BB alone or the modified method using medium containing PDGF-BB, basic fibroblast growth factor (bFGF), and insulin-transferrin-selenium ITS for 4 weeks. The purity of vSMPCs was analyzed for the expression of a- smooth muscle actin (SMA) by flow cytometry and significantly higher in the modified method than conventional methods at the 1st and 2nd weeks. Also, mRNA expression of a-SMA by real-time PCR was significantly higher in the modified method than conventional method at the 2 weeks. The yield of vSMPCs by trypan blue exclusion assay was significantly higher in the modified method than conventional method at the 1st, 2nd and 3rd weeks. The primary culture using the modified method with PDGF-BB, bFGF, and ITS not only improved cell purity and yield, but also shortened the culture period, compared to the conventional culture method for vSMPCs. The modified method will be a time-saving and useful tool in various studies related to vascular pathology.
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Affiliation(s)
- Jin-Hee Seong
- Graduate School of Biomedical Science and Engineering, Hanyang University, Seoul, South Korea
| | - Yi-Sun Song
- Graduate School of Biomedical Science and Engineering, Hanyang University, Seoul, South Korea
| | - Hyun-Woo Joo
- Graduate School of Biomedical Science and Engineering, Hanyang University, Seoul, South Korea
| | - In-Hwa Park
- Graduate School of Biomedical Science and Engineering, Hanyang University, Seoul, South Korea
| | - Guang-Yin Shen
- Division of Cardiology, Department of Internal Medicine, Hanyang University College of Medicine, Seoul, South Korea
- Division of Cardiology, Department of Internal Medicine, Jilin University Jilin Central Hospital, Jilin, China
| | - Na-Kyoung Shin
- Graduate School of Biomedical Science and Engineering, Hanyang University, Seoul, South Korea
| | - A-Hyeon Lee
- Graduate School of Biomedical Science and Engineering, Hanyang University, Seoul, South Korea
| | - Amy M Kwon
- Biostatistical Consulting and Research Laboratory, Medical Research Collaborating Center, Industry-University Cooperation Foundation, Hanyang University, Seoul, South Korea
| | - Yonggu Lee
- Department of Internal Medicine, Hanyang University Guri Hospital, Guri, South Korea
| | - Hyuck Kim
- Department of Thoracic Surgery, Hanyang University Seoul Hospital, Seoul, South Korea
| | - Kyung-Soo Kim
- Graduate School of Biomedical Science and Engineering, Hanyang University, Seoul, South Korea.
- Division of Cardiology, Department of Internal Medicine, Hanyang University College of Medicine, Seoul, South Korea.
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Carnosine Impedes PDGF-Stimulated Proliferation and Migration of Vascular Smooth Muscle Cells In Vitro and Sprout Outgrowth Ex Vivo. Nutrients 2020; 12:nu12092697. [PMID: 32899420 PMCID: PMC7551855 DOI: 10.3390/nu12092697] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 08/31/2020] [Accepted: 09/01/2020] [Indexed: 01/02/2023] Open
Abstract
Carnosine, a naturally producing dipeptide, exhibits various beneficial effects. However, the possible role of carnosine in vascular disorders associated with pathological conditions, including proliferation and migration of vascular smooth muscle cells (VSMCs), largely remains unrevealed. Here, we investigated the regulatory role and mechanism of carnosine in platelet-derived growth factor (PDGF)-induced VSMCs. Carnosine inhibited the proliferation of PDGF-induced VSMCs without any cytotoxic effects. Carnosine treatment also induced G1-phase cell cycle arrest by causing a p21WAF1-mediated reduction in the expression of both cyclin-dependent kinases (CDKs) and cyclins in PDGF-treated VSMCs. Carnosine treatment suppressed c-Jun N-terminal kinase (JNK) phosphorylation in PDGF-stimulated signaling. Additionally, carnosine significantly prevented the migration of VSMCs exposed to PDGF. Carnosine abolished matrix metalloproteinase (MMP)-9 activity via reduced transcriptional binding activity of NF-κB, Sp-1, and AP-1 motifs in PDGF-treated VSMCs. Moreover, using aortic assay ex vivo, it was observed that carnosine addition attenuated PDGF-stimulated sprout outgrowth of VSMCs. Taken together, these results demonstrated that carnosine impeded the proliferation and migration of PDGF-stimulated VSMCs by regulating cell cycle machinery, JNK signaling, and transcription factor-mediated MMP-9 activity as well as prevented ex vivo sprout outgrowth of blood vessels. Thus, carnosine may be a potential candidate for preventing vascular proliferative disease.
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30
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EPAC in Vascular Smooth Muscle Cells. Int J Mol Sci 2020; 21:ijms21145160. [PMID: 32708284 PMCID: PMC7404248 DOI: 10.3390/ijms21145160] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 07/09/2020] [Accepted: 07/19/2020] [Indexed: 02/07/2023] Open
Abstract
Vascular smooth muscle cells (VSMCs) are major components of blood vessels. They regulate physiological functions, such as vascular tone and blood flow. Under pathological conditions, VSMCs undergo a remodeling process known as phenotypic switching. During this process, VSMCs lose their contractility and acquire a synthetic phenotype, where they over-proliferate and migrate from the tunica media to the tunica interna, contributing to the occlusion of blood vessels. Since their discovery as effector proteins of cyclic adenosine 3′,5′-monophosphate (cAMP), exchange proteins activated by cAMP (EPACs) have been shown to play vital roles in a plethora of pathways in different cell systems. While extensive research to identify the role of EPAC in the vasculature has been conducted, much remains to be explored to resolve the reported discordance in EPAC’s effects. In this paper, we review the role of EPAC in VSMCs, namely its regulation of the vascular tone and phenotypic switching, with the likely involvement of reactive oxygen species (ROS) in the interplay between EPAC and its targets/effectors.
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31
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Lavin Plaza B, Phinikaridou A, Andia ME, Potter M, Lorrio S, Rashid I, Botnar RM. Sustained Focal Vascular Inflammation Accelerates Atherosclerosis in Remote Arteries. Arterioscler Thromb Vasc Biol 2020; 40:2159-2170. [PMID: 32673527 PMCID: PMC7447189 DOI: 10.1161/atvbaha.120.314387] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
OBJECTIVE Evidence from preclinical and clinical studies has demonstrated that myocardial infarction promotes atherosclerosis progression. The impact of focal vascular inflammation on the progression and phenotype of remote atherosclerosis remains unknown. Approach and Results: We used a novel ApoE-/- knockout mouse model of sustained arterial inflammation, initiated by mechanical injury in the abdominal aorta. Using serial in vivo molecular MRI and ex vivo histology and flow cytometry, we demonstrate that focal arterial inflammation triggered by aortic injury, accelerates atherosclerosis in the remote brachiocephalic artery. The brachiocephalic artery atheroma had distinct histological features including increased plaque size, plaque permeability, necrotic core to collagen ratio, infiltration of more inflammatory monocyte subsets, and reduced collagen content. We also found that arterial inflammation following focal vascular injury evoked a prolonged systemic inflammatory response manifested as a persistent increase in serum IL-6 (interleukin 6). Finally, we demonstrate that 2 therapeutic interventions-pravastatin and minocycline-had distinct anti-inflammatory effects at the plaque and systemic level. CONCLUSIONS We show for the first time that focal arterial inflammation in response to vascular injury enhances systemic vascular inflammation, accelerates remote atheroma progression and induces plaques more inflamed, lipid-rich, and collagen-poor in the absence of ischemic myocardial injury. This inflammatory cascade is modulated by pravastatin and minocycline treatments, which have anti-inflammatory effects at both plaque and systemic levels that mitigate atheroma progression.
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Affiliation(s)
- Begoña Lavin Plaza
- From the School of Biomedical Engineering and Imaging Sciences, King's College London, United Kingdom (B.L.P., A.P., M.P., S.L., I.R., R.M.B.)
| | - Alkystis Phinikaridou
- From the School of Biomedical Engineering and Imaging Sciences, King's College London, United Kingdom (B.L.P., A.P., M.P., S.L., I.R., R.M.B.)
| | - Marcelo E Andia
- Radiology Department & Millennium Nucleus for Cardiovascular Magnetic Resonance (M.E.A.), Pontificia Universidad Católica de Chile
| | - Myles Potter
- From the School of Biomedical Engineering and Imaging Sciences, King's College London, United Kingdom (B.L.P., A.P., M.P., S.L., I.R., R.M.B.)
| | - Silvia Lorrio
- From the School of Biomedical Engineering and Imaging Sciences, King's College London, United Kingdom (B.L.P., A.P., M.P., S.L., I.R., R.M.B.)
| | - Imran Rashid
- From the School of Biomedical Engineering and Imaging Sciences, King's College London, United Kingdom (B.L.P., A.P., M.P., S.L., I.R., R.M.B.).,Case Cardiovascular Research Institute, Case Western Reserve University, Cleveland, OH (I.R.)
| | - Rene M Botnar
- From the School of Biomedical Engineering and Imaging Sciences, King's College London, United Kingdom (B.L.P., A.P., M.P., S.L., I.R., R.M.B.).,Escuela de Ingeniería (R.M.B.), Pontificia Universidad Católica de Chile
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The Impact of Dietary Supplementation of Whole Foods and Polyphenols on Atherosclerosis. Nutrients 2020; 12:nu12072069. [PMID: 32664664 PMCID: PMC7400924 DOI: 10.3390/nu12072069] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Revised: 07/01/2020] [Accepted: 07/09/2020] [Indexed: 12/16/2022] Open
Abstract
The purpose of this review is to highlight current research on the benefits of supplementation with foods with a diverse polyphenol composition, including fruits, vegetables, nuts, grains, oils, spices, and teas in blunting atherosclerosis. We searched PubMed for publications utilizing whole food or polyphenols prepared from whole foods in Apolipoprotein E (ApoE) or Low-Density Lipoprotein Receptor (LDLR) knockout mice, and identified 73 studies in which plaque was measured. The majority of the studies reported a reduction in plaque. Nine interventions showed no effect, while three using Agaricus blazei mushroom, HYJA-ri-4 rice variety, and safrole-2', 3'-oxide (SFO) increased plaque. The mechanisms by which atherosclerosis was reduced include improved lipid profile, antioxidant status, and cholesterol clearance, and reduced inflammation. Importantly, not all dietary interventions that reduce plaque showed an improvement in lipid profile. Additionally, we found that, out of 73 studies, only 9 used female mice and only 6 compared both sexes. Only one study compared the two models (LDLR vs. ApoE), showing that the treatment worked in one but not the other. Not all supplementations work in both male and female animals, suggesting that increasing the variety of foods with different polyphenol compositions may be more effective in mitigating atherosclerosis.
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Wahab A, Dey AK, Bandyopadhyay D, Katikineni V, Chopra R, Vedantam KS, Devraj M, Chowdary AK, Navarengom K, Lavie CJ, Kolpakchi A, Jneid H. Obesity, Systemic Hypertension, and Pulmonary Hypertension: A Tale of Three Diseases. Curr Probl Cardiol 2020; 46:100599. [PMID: 32560908 DOI: 10.1016/j.cpcardiol.2020.100599] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Accepted: 04/06/2020] [Indexed: 12/11/2022]
Abstract
Cardiovascular disease (CVD), especially ischemic heart disease and stroke, is the major cause of death worldwide, accounting for more than one-third of all deaths annually. Hypertension is the most prevalent and modifiable risk factor of CVD-related deaths. The same is true for obesity, which is currently being recognized as a major global epidemic. The prevalence of obesity in the United States has increased dramatically, from 13.4% in 1960 to 36.5% in 2014, with as much as 70.7% of the American adult population being overweight or obese (CDC). Epidemiological studies have shown that obesity predisposes to hypertension and CVD - with the relationship between markers of obesity and blood pressure being almost linear across different populations. In this review, we discuss systemic and pulmonary hypertension in the context of obesity.
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Affiliation(s)
- Abdul Wahab
- University of Iowa Hospitals and Clinics, Iowa City, IA
| | - Amit K Dey
- National Heart, Lung and Blood Institute, Bethesda, MD
| | | | | | | | | | | | | | | | - Carl J Lavie
- John Ochsner Heart and Vascular Institute, Ochsner Clinical School-UQ School of Medicine, New Orleans, LA
| | - Anna Kolpakchi
- Section of Cardiology, Baylor College of Medicine and the Michael E. DeBakey VAMC, Houston, TX
| | - Hani Jneid
- Section of Cardiology, Baylor College of Medicine and the Michael E. DeBakey VAMC, Houston, TX.
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34
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Kim J, Lee KP, Kim BS, Lee SJ, Moon BS, Baek S. Heat shock protein 90 inhibitor AUY922 attenuates platelet-derived growth factor-BB-induced migration and proliferation of vascular smooth muscle cells. THE KOREAN JOURNAL OF PHYSIOLOGY & PHARMACOLOGY : OFFICIAL JOURNAL OF THE KOREAN PHYSIOLOGICAL SOCIETY AND THE KOREAN SOCIETY OF PHARMACOLOGY 2020; 24:241-248. [PMID: 32392915 PMCID: PMC7193915 DOI: 10.4196/kjpp.2020.24.3.241] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Revised: 03/23/2020] [Accepted: 03/25/2020] [Indexed: 11/15/2022]
Abstract
Luminespib (AUY922), a heat shock proteins 90 inhibitor, has anti-neoplastic and antitumor effects. However, it is not clear whether AUY922 affects events in vascular diseases. We investigated the effects of AUY922 on the platelet-derived growth factor (PDGF)-BB-stimulated proliferation and migration of vascular smooth muscle cells (VSMC). VSMC viability was detected using the XTT (2,3-bis-(2-methoxy-4-nitro-5-sulfophenyl)-2H-tetrazolium-5-carboxanilide) reagent. To detect the attenuating effects of AUY922 on PDGF-BB-induced VSMCs migration in vitro, we performed the Boyden chamber and scratch wound healing assays. To identify AUY922-mediated changes in the signaling pathway, the phosphorylation of protein kinase B (Akt) and extracellular signal-regulated kinase (ERK) 1/2 was analyzed by immunoblotting. The inhibitory effects of AUY922 on migration and proliferation ex vivo were tested using an aortic ring assay. AUY922 was not cytotoxic at concentrations up to 5 nM. PDGF-BB-induced VSMC proliferation, migration, and sprout outgrowth were significantly decreased by AUY922 in a dose-dependent manner. AUY922 significantly reduced the PDGF-BB-stimulated phosphorylation of Akt and ERK1/2. Furthermore, PD98059 (a selective ERK1/2 inhibitor) and LY294002 (a selective Akt inhibitor) decreased VSMC migration and proliferation by inhibiting phosphorylation of Akt and ERK1/2. Greater attenuation of PDGF-BB-induced cell viability and migration was observed upon treatment with PD98059 or LY294002 in combination with AUY922. AUY922 showed anti-proliferation and anti-migration effects towards PDGF-BBinduced VSMCs by regulating the phosphorylation of ERK1/2 and Akt. Thus, AUY922 is a candidate for the treatment of atherosclerosis and restenosis.
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Affiliation(s)
- Jisu Kim
- Department of Sports Medicine and Science in Graduate School, Konkuk University, Seoul 05029, Korea
| | - Kang Pa Lee
- Research & Development Center, UMUST R&D Corporation, Seoul 05029, Korea
| | - Bom Sahn Kim
- Department of Nuclear Medicine, Ewha Womans University Seoul Hospital, Ewha Womans University College of Medicine, Seoul 07804, Korea
| | - Sang Ju Lee
- Department of Nuclear Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Korea
| | - Byung Seok Moon
- Department of Nuclear Medicine, Ewha Womans University Seoul Hospital, Ewha Womans University College of Medicine, Seoul 07804, Korea
| | - Suji Baek
- Research & Development Center, UMUST R&D Corporation, Seoul 05029, Korea
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35
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Farina FM, Hall IF, Serio S, Zani S, Climent M, Salvarani N, Carullo P, Civilini E, Condorelli G, Elia L, Quintavalle M. miR-128-3p Is a Novel Regulator of Vascular Smooth Muscle Cell Phenotypic Switch and Vascular Diseases. Circ Res 2020; 126:e120-e135. [PMID: 32216529 DOI: 10.1161/circresaha.120.316489] [Citation(s) in RCA: 81] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
RATIONALE MicroRNAs (miRNAs, miRs) are small noncoding RNAs that modulate gene expression by negatively regulating translation of target genes. Although the role of several miRNAs in vascular smooth muscle cells (VSMCs) has been extensively characterized, the function of miRNA-128-3p (miR-128) is still unknown. OBJECTIVE To determine if miR-128 modulates VSMC phenotype and to define the underlying mechanisms. METHODS AND RESULTS We screened for miRNAs whose expression is modulated by an altered DNA methylation status in VSMCs, and among the hits, we selected miR-128. We found that miR-128 was expressed in various tissues, primary murine cells, and pathological murine and human vascular specimens. Through gain- and loss-of-function approaches, we determined that miR-128 affects VSMC proliferation, migration, differentiation, and contractility. The alterations of those properties were dependent upon epigenetic regulation of key VSMC differentiation genes; notably, Kruppel-like factor 4 was found to be a direct target of miR-128 and able to modulate the methylation status of the pivotal VSMC gene myosin heavy chain 11 (Myh11). Finally, in vivo lentiviral delivery of miR-128 prevented intimal hyperplasia in a mouse model of carotid restenosis without modifying vital cardiovascular parameters. CONCLUSION miR-128 is a critical modulator of VSMCs and is regulated by epigenetic modifications upon stress. Its modulation in the context of disease could be exploited for therapeutic purposes.
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Affiliation(s)
- Floriana Maria Farina
- From the Humanitas Research Hospital, Rozzano, Milan, Italy (F.M.F., I.F.H., S.Z., M.C., N.S., P.C., E.C., G.C., L.E., M.Q.).,Department of Medical Biotechnology and Translational Medicine, University of Milan, Italy (F.M.F.)
| | - Ignacio Fernando Hall
- From the Humanitas Research Hospital, Rozzano, Milan, Italy (F.M.F., I.F.H., S.Z., M.C., N.S., P.C., E.C., G.C., L.E., M.Q.).,Humanitas University, Rozzano, Milan, Italy (I.F.H., S.Z., E.C., G.C.)
| | | | - Stefania Zani
- From the Humanitas Research Hospital, Rozzano, Milan, Italy (F.M.F., I.F.H., S.Z., M.C., N.S., P.C., E.C., G.C., L.E., M.Q.).,Humanitas University, Rozzano, Milan, Italy (I.F.H., S.Z., E.C., G.C.)
| | - Montserrat Climent
- From the Humanitas Research Hospital, Rozzano, Milan, Italy (F.M.F., I.F.H., S.Z., M.C., N.S., P.C., E.C., G.C., L.E., M.Q.)
| | - Nicolò Salvarani
- From the Humanitas Research Hospital, Rozzano, Milan, Italy (F.M.F., I.F.H., S.Z., M.C., N.S., P.C., E.C., G.C., L.E., M.Q.)
| | - Pierluigi Carullo
- From the Humanitas Research Hospital, Rozzano, Milan, Italy (F.M.F., I.F.H., S.Z., M.C., N.S., P.C., E.C., G.C., L.E., M.Q.).,Institute of Genetics and Biomedical Research, National Research Council, Rozzano, Milan, Italy (P.C., G.C., L.E.)
| | - Efrem Civilini
- From the Humanitas Research Hospital, Rozzano, Milan, Italy (F.M.F., I.F.H., S.Z., M.C., N.S., P.C., E.C., G.C., L.E., M.Q.).,Humanitas University, Rozzano, Milan, Italy (I.F.H., S.Z., E.C., G.C.)
| | - Gianluigi Condorelli
- From the Humanitas Research Hospital, Rozzano, Milan, Italy (F.M.F., I.F.H., S.Z., M.C., N.S., P.C., E.C., G.C., L.E., M.Q.).,Humanitas University, Rozzano, Milan, Italy (I.F.H., S.Z., E.C., G.C.).,Institute of Genetics and Biomedical Research, National Research Council, Rozzano, Milan, Italy (P.C., G.C., L.E.)
| | - Leonardo Elia
- From the Humanitas Research Hospital, Rozzano, Milan, Italy (F.M.F., I.F.H., S.Z., M.C., N.S., P.C., E.C., G.C., L.E., M.Q.).,Institute of Genetics and Biomedical Research, National Research Council, Rozzano, Milan, Italy (P.C., G.C., L.E.).,Department of Molecular and Translational Medicine, University of Brescia, Italy (L.E.)
| | - Manuela Quintavalle
- From the Humanitas Research Hospital, Rozzano, Milan, Italy (F.M.F., I.F.H., S.Z., M.C., N.S., P.C., E.C., G.C., L.E., M.Q.)
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Paredes F, Williams HC, Quintana RA, San Martin A. Mitochondrial Protein Poldip2 (Polymerase Delta Interacting Protein 2) Controls Vascular Smooth Muscle Differentiated Phenotype by O-Linked GlcNAc (N-Acetylglucosamine) Transferase-Dependent Inhibition of a Ubiquitin Proteasome System. Circ Res 2019; 126:41-56. [PMID: 31656131 DOI: 10.1161/circresaha.119.315932] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
RATIONALE The mitochondrial Poldip2 (protein polymerase interacting protein 2) is required for the activity of the tricarboxylic acid cycle. As a consequence, Poldip2 deficiency induces metabolic reprograming with repressed mitochondrial respiration and increased glycolytic activity. Though homozygous deletion of Poldip2 is lethal, heterozygous mice are viable and show protection against aneurysm and injury-induced neointimal hyperplasia, diseases linked to loss of vascular smooth muscle differentiation. Thus, we hypothesize that the metabolic reprograming induced by Poldip2 deficiency controls VSMC differentiation. OBJECTIVE To determine the role of Poldip2-mediated metabolic reprograming in phenotypic modulation of VSMC. METHODS AND RESULTS We show that Poldip2 deficiency in vascular smooth muscle in vitro and in vivo induces the expression of the SRF (serum response factor), myocardin, and MRTFA (myocardin-related transcription factor A) and dramatically represses KLF4 (Krüppel-like factor 4). Consequently, Poldip2-deficient VSMC and mouse aorta express high levels of contractile proteins and, more significantly, these cells do not dedifferentiate nor acquire macrophage-like characteristics when exposed to cholesterol or PDGF (platelet-derived growth factor). Regarding the mechanism, we found that Poldip2 deficiency upregulates the hexosamine biosynthetic pathway and OGT (O-linked N-acetylglucosamine transferase)-mediated protein O-GlcNAcylation. Increased protein glycosylation causes the inhibition of a nuclear ubiquitin proteasome system responsible for SRF stabilization and KLF4 repression and is required for the establishment of the differentiated phenotype in Poldip2-deficient cells. CONCLUSIONS Our data show that Poldip2 deficiency induces a highly differentiated phenotype in VSMCs through a mechanism that involves regulation of metabolism and proteostasis. Additionally, our study positions mitochondria-initiated signaling as key element of the VSMC differentiation programs that can be targeted to modulate VSMC phenotype during vascular diseases.
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Affiliation(s)
- Felipe Paredes
- From the Department of Medicine, Division of Cardiology, Emory University, Atlanta, GA
| | - Holly C Williams
- From the Department of Medicine, Division of Cardiology, Emory University, Atlanta, GA
| | - Raymundo A Quintana
- From the Department of Medicine, Division of Cardiology, Emory University, Atlanta, GA
| | - Alejandra San Martin
- From the Department of Medicine, Division of Cardiology, Emory University, Atlanta, GA
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Pan CH, Chen CJ, Shih CM, Wang MF, Wang JY, Wu CH. Oxidative stress-induced cellular senescence desensitizes cell growth and migration of vascular smooth muscle cells through down-regulation of platelet-derived growth factor receptor-beta. Aging (Albany NY) 2019; 11:8085-8102. [PMID: 31584878 PMCID: PMC6814625 DOI: 10.18632/aging.102270] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Accepted: 09/05/2019] [Indexed: 01/08/2023]
Abstract
The relationship between aging and restenosis are unclear. The purposes of this study were to investigate the possible pathological role and mechanism of aging on formation of restenosis. Our data indicated that cell proliferation and migration of the oxidative stress-induced senescent vascular smooth muscle cells were obviously desensitized to stimulation by platelet-derived growth factor (PDGF)-BB, which may have been caused by suppression of promoter activity, transcription, translation, and activation levels of PDGF receptor (PDGFR)-β. The analyzed data obtained from the binding array of transcription factors (TFs) showed that binding levels of eighteen TFs on the PDGFR-β promoter region (-523 to -1) were significantly lower in senescent cells compared to those of non-senescent cells. Among these TFs, the bioinformatics prediction suggested that the putative binding sites of ten TFs were found in this promoter region. Of these, transcriptional levels of seven TFs were markedly reduced in senescent cells. The clinical data showed that the proportion of restenosis was relatively lower in the older group than that in the younger group. Our study results suggested that a PDGFR-β-mediated pathway was suppressed in aging cells, and our clinical data showed that age and the vascular status were slightly negatively correlated in overall participants.
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Affiliation(s)
- Chun-Hsu Pan
- School of Pharmacy, Taipei Medical University, Taipei 11031, Taiwan
| | - Chang-Jui Chen
- Department of Pharmacy, Taipei Medical University Hospital, Taipei 11031, Taiwan
| | - Chun-Ming Shih
- Division of Cardiology, Department of Internal Medicine, Taipei Medical University Hospital, Taipei 11031, Taiwan
| | - Ming-Fu Wang
- Department of Food and Nutrition, Providence University, Taichung 433, Taiwan
| | - Jie-Yu Wang
- School of Pharmacy, Taipei Medical University, Taipei 11031, Taiwan
| | - Chieh-Hsi Wu
- School of Pharmacy, Taipei Medical University, Taipei 11031, Taiwan
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Li XD, Hong MN, Chen J, Lu YY, Ye MQ, Ma Y, Zhu DL, Gao PJ. Adventitial fibroblast-derived vascular endothelial growth factor promotes vasa vasorum-associated neointima formation and macrophage recruitment. Cardiovasc Res 2019; 116:708-720. [DOI: 10.1093/cvr/cvz159] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Revised: 04/10/2019] [Accepted: 06/24/2019] [Indexed: 12/12/2022] Open
Abstract
Abstract
Aims
Adventitial vasa vasorum provides oxygen and nourishment to the vascular wall, but whether it regulates vascular disease remains unclear. We have previously shown that an increased expression of VEGF (vascular endothelial growth factor) is associated with macrophage infiltration. This study aims to determine whether adventitial fibroblast (AF)-derived VEGF increases the number of vasa vasorum contributing to neointima formation through macrophage recruitment.
Methods and results
In rat balloon injury model, vasa vasorum count was increased particularly in the adventitia accompanied by cell proliferation and VEGF expression. Both endogenous and PKH26-labelled exogenous macrophages were mainly distributed in adventitia around vasa vasorum. Interestingly, perivascular delivery of Ranibizumab preferentially concentrated in adventitia resulted in a decrease of neointima formation with concurrent reduction of vasa vasorum count and macrophage infiltration. AFs with adenovirus-mediated VEGF over-expression delivered to the adventitia significantly enhanced these pathological changes after injury. In Tie2-cre/Rosa-LoxP-RFP mice, endothelial cells were increased in the adventitia after wire injury. By using multiphoton laser scanning microscopy, macrophage rolling, adhesion and transmigration were observed in vasa vasorum. Moreover, adoptive transfer of macrophages accelerated injury-induced neointima formation. VEGF-neutralizing antibody administration also attenuated wire injury-induced neointima formation and macrophage infiltration. In primary cultured AFs, exogenous VEGF increased VEGF expression and secretion in a time- and dose-dependent manner. AF-conditioned medium promoted endothelial cell angiogenesis, vascular cell adhesion molecule-1 expression and macrophage adhesion was blocked by VEGF-neutralizing antibody and VEGFR2 inhibitor ZM323881, which also inhibited activation of VEGFR2/ERK1/2 pathway.
Conclusion
These results demonstrate that AF-derived VEGF plays a significant role in the increase of vasa vasorum count which is involved in macrophage recruitment and neointima formation.
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Affiliation(s)
- Xiao-Dong Li
- State Key Laboratory of Medical Genomics, Shanghai Key Laboratory of Hypertension, Department of Hypertension, Ruijin Hospital and Shanghai Institute of Hypertension, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, China
| | - Mo-Na Hong
- State Key Laboratory of Medical Genomics, Shanghai Key Laboratory of Hypertension, Department of Hypertension, Ruijin Hospital and Shanghai Institute of Hypertension, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, China
| | - Jing Chen
- Department of Hypertension, Ruijin Hospital North, Shanghai Jiao Tong University School of Medicine, 999 Xiwang Road, Shanghai 201801, China
| | - Yuan-Yuan Lu
- State Key Laboratory of Medical Genomics, Shanghai Key Laboratory of Hypertension, Department of Hypertension, Ruijin Hospital and Shanghai Institute of Hypertension, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, China
| | - Mao-Qing Ye
- State Key Laboratory of Medical Genomics, Shanghai Key Laboratory of Hypertension, Department of Hypertension, Ruijin Hospital and Shanghai Institute of Hypertension, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, China
| | - Yu Ma
- State Key Laboratory of Medical Genomics, Shanghai Key Laboratory of Hypertension, Department of Hypertension, Ruijin Hospital and Shanghai Institute of Hypertension, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, China
| | - Ding-Liang Zhu
- State Key Laboratory of Medical Genomics, Shanghai Key Laboratory of Hypertension, Department of Hypertension, Ruijin Hospital and Shanghai Institute of Hypertension, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, China
| | - Ping-Jin Gao
- State Key Laboratory of Medical Genomics, Shanghai Key Laboratory of Hypertension, Department of Hypertension, Ruijin Hospital and Shanghai Institute of Hypertension, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, China
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Zhao N, Suzuki A, Zhang X, Shi P, Abune L, Coyne J, Jia H, Xiong N, Zhang G, Wang Y. Dual Aptamer-Functionalized in Situ Injectable Fibrin Hydrogel for Promotion of Angiogenesis via Codelivery of Vascular Endothelial Growth Factor and Platelet-Derived Growth Factor-BB. ACS APPLIED MATERIALS & INTERFACES 2019; 11:18123-18132. [PMID: 31026135 PMCID: PMC6542593 DOI: 10.1021/acsami.9b02462] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
In situ injectable hydrogels hold great potential for in vivo applications such as drug delivery and regenerative medicine. However, it is challenging to ensure stable sequestration and sustained release of loaded biomolecules in these hydrogels. As aptamers have high binding affinities and specificities against target biomolecules, we studied the capability of aptamers in functionalizing in situ injectable fibrin (Fn) hydrogels for in vivo delivery of two growth factors including vascular endothelial growth factor (VEGF) and platelet-derived growth factor-BB (PDGF-BB). The results show that aptamer-functionalized fibrinogen (Fg) could form in situ injectable Fn hydrogels with porous structures. The aptamer-functionalized Fn hydrogels could sequester more VEGF and PDGF-BB than the native Fn and release these growth factors in a sustained manner with high bioactivity. After the aptamer-functionalized Fn hydrogels were subcutaneously injected into mice, the codelivery of VEGF and PDGF-BB could promote the growth of mature blood vessels. Therefore, this study has successfully demonstrated that aptamer-functionalized in situ injectable hydrogels hold great potential for in vivo codelivery of multiple growth factors and promotion of angiogenesis .
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Affiliation(s)
- Nan Zhao
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, PA 16802, USA
| | - Akiho Suzuki
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, PA 16802, USA
| | - Xiaolong Zhang
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, PA 16802, USA
| | - Peng Shi
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, PA 16802, USA
| | - Lidya Abune
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, PA 16802, USA
| | - James Coyne
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, PA 16802, USA
| | - Huizhen Jia
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, PA 16802, USA
| | - Na Xiong
- Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA
| | - Ge Zhang
- Department of Biomedical Engineering, The University of Akron, Akron, OH, 44325, USA
| | - Yong Wang
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, PA 16802, USA
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Ford CL, Wang Y, Morgan K, Boktor M, Jordan P, Castor TP, Alexander JS. Interferon-gamma depresses human intestinal smooth muscle cell contractility: Relevance to inflammatory gut motility disturbances. Life Sci 2019; 222:69-77. [DOI: 10.1016/j.lfs.2019.01.059] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2018] [Revised: 01/17/2019] [Accepted: 01/17/2019] [Indexed: 02/07/2023]
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A disintegrin and metalloprotease 22 accelerates neointima formation by activating ERK signaling. Atherosclerosis 2019; 283:92-99. [PMID: 30822685 DOI: 10.1016/j.atherosclerosis.2019.02.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Revised: 12/30/2018] [Accepted: 02/01/2019] [Indexed: 11/21/2022]
Abstract
BACKGROUND AND AIMS Despite the advantage of arterial expansion for life-threatening vascular pathologies, the occurrence of neointima formation remains a prominent complication, with the underlying mechanisms largely unknown. A disintegrin and metalloprotease 22 (ADAM22) belongs to the family of ADAMs that possesses various biological capacities regulating vascular physiopathology. However, little is known about ADAM22 in vascular smooth muscle cell (VSMC)-mediated neointima formation. Here, we aimed to evaluate the potential functional regulation of ADAM22 in neointima formation and to further explore the underlying mechanisms. METHODS In our study, platelet-derived growth factor-BB (PDGF-BB)-induced VSMC proliferation was examined using a 5-bromo-2'-deoxyuridine (BrdU) incorporation assay and a cell counting kit-8 (CCK8) assay, while VSMC migration was detected using a modified Boyden chamber method and a scratch-wound assay. The functional role of ADAM22 in neointima formation was evaluated based on a left carotid artery wire injury model in mice at 14 and 28 days. RESULTS ADAM22 was significantly up-regulated in both PDGF-BB-challenged VSMCs and restenotic arteries of mice. When ADAM22 was overexpressed in VSMCs, cell proliferation, migration and phenotypic switching were simultaneously aggravated, whereas the opposite was observed when ADAM22 was knocked down in vitro. In ADAM22 heterozygote mice, wire-injury induced neointima formation was significantly ameliorated compared to wild-type control mice. Mechanistically, significantly up-regulated ERK phosphorylation is closely involved in the regulatory effects of ADAM22 in neointima formation. Interestingly, an ERK inhibitor largely reversed the aggravated VSMCs migration, proliferation and phenotypic switching induced by ADAM22 overexpression. CONCLUSIONS Our results indicate that ADAM22 accelerates neointima formation by enhancing VSMC migration, proliferation and phenotypic switching via promoting ERK phosphorylation. Suppressing ADAM22 expression may be an effective strategy for ameliorating neointima formation.
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Padget RL, Mohite SS, Hoog TG, Justis BS, Green BE, Udan RS. Hemodynamic force is required for vascular smooth muscle cell recruitment to blood vessels during mouse embryonic development. Mech Dev 2019; 156:8-19. [PMID: 30796970 DOI: 10.1016/j.mod.2019.02.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Revised: 01/16/2019] [Accepted: 02/16/2019] [Indexed: 12/13/2022]
Abstract
Blood vessel maturation, which is characterized by the investment of vascular smooth muscle cells (vSMCs) around developing blood vessels, begins when vessels remodel into a hierarchy of proximal arteries and proximal veins that branch into smaller distal capillaries. The ultimate result of maturation is formation of the tunica media-the middlemost layer of a vessel that is composed of vSMCs and acts to control vessel integrity and vascular tone. Though many studies have implicated the role of various signaling molecules in regulating maturation, no studies have determined a role for hemodynamic force in the regulation of maturation in the mouse. In the current study, we provide evidence that a hemodynamic force-dependent mechanism occurs in the mouse because reduced blood flow mouse embryos exhibited a diminished or absent coverage of vSMCs around vessels, and in normal-flow embryos, extent of coverage correlated to the amount of blood flow that vessels were exposed to. We also determine that the cellular mechanism of force-induced maturation was not by promoting vSMC differentiation/proliferation, but instead involved the recruitment of vSMCs away from neighboring low-flow distal capillaries towards high-flow vessels. Finally, we hypothesize that hemodynamic force may regulate expression of specific signaling molecules to control vSMC recruitment to high-flow vessels, as reduction of flow results in the misexpression of Semaphorin 3A, 3F, 3G, and the Notch target gene Hey1, all of which are implicated in controlling vessel maturation. This study reveals another role for hemodynamic force in regulating blood vessel development of the mouse, and opens up a new model to begin elucidating mechanotransduction pathways regulating vascular maturation.
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Affiliation(s)
- Rachel L Padget
- Department of Biology, Missouri State University, United States of America
| | - Shilpa S Mohite
- Department of Biology, Missouri State University, United States of America
| | - Tanner G Hoog
- Department of Biology, Missouri State University, United States of America
| | - Blake S Justis
- Department of Biology, Missouri State University, United States of America
| | - Bruce E Green
- Department of Biology, Missouri State University, United States of America
| | - Ryan S Udan
- Department of Biology, Missouri State University, United States of America.
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Higashi Y, Mummidi S, Sukhanov S, Yoshida T, Noda M, Delafontaine P, Chandrasekar B. Minocycline inhibits PDGF-BB-induced human aortic smooth muscle cell proliferation and migration by reversing miR-221- and -222-mediated RECK suppression. Cell Signal 2019; 57:10-20. [PMID: 30716386 DOI: 10.1016/j.cellsig.2019.01.014] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2018] [Revised: 01/31/2019] [Accepted: 01/31/2019] [Indexed: 12/24/2022]
Abstract
Minocycline, a tetracycline antibiotic, is known to exert vasculoprotective effects independent of its anti-bacterial properties; however the underlying molecular mechanisms are not completely understood. Reversion Inducing Cysteine Rich Protein with Kazal Motifs (RECK) is a cell surface expressed, membrane anchored protein, and its overexpression inhibits cancer cell migration. We hypothesized that minocycline inhibits platelet-derived growth factor (PDGF)-induced human aortic smooth muscle cell (SMC) proliferation and migration via RECK upregulation. Our data show that the BB homodimer of recombinant PDGF (PDGF-BB) induced SMC migration and proliferation, effects significantly blunted by pre-treatment with minocycline. Further investigations revealed that PDGF-BB induced PI3K-dependent AKT activation, ERK activation, reactive oxygen species generation, Nuclear Factor-κB and Activator Protein-1 activation, microRNA (miR)-221 and miR-222 induction, RECK suppression, and matrix metalloproteinase (MMP2 and 9) activation, effects that were reversed by minocycline. Notably, minocycline induced RECK expression dose-dependently within the therapeutic dose of 1-100 μM, and silencing RECK partially reversed the inhibitory effects of minocycline on PDGF-BB-induced MMP activation, and SMC proliferation and migration. Further, targeting MMP2 and MMP9 blunted PDGF-BB-induced SMC migration. Together, these results demonstrate that minocycline inhibits PDGF-BB-induced SMC proliferation and migration by restoring RECK, an MMP inhibitor. These results indicate that the induction of RECK is one of the mechanisms by which minocycline exerts vasculoprotective effects.
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Affiliation(s)
- Yusuke Higashi
- Medicine/Cardiovascular Medicine, University of Missouri School of Medicine, Columbia, MO, USA; Department of Medical Pharmacology and Physiology, University of Missouri School of Medicine, Columbia, MO, USA
| | - Srinivas Mummidi
- Department of Human Genetics, South Texas Diabetes and Obesity Institute, The University of Texas Rio Grande Valley School of Medicine, Edinburg, TX, USA; Medicine/Cardiovascular Medicine, University of Missouri School of Medicine, Columbia, MO, USA
| | - Sergiy Sukhanov
- Medicine/Cardiovascular Medicine, University of Missouri School of Medicine, Columbia, MO, USA; Department of Medical Pharmacology and Physiology, University of Missouri School of Medicine, Columbia, MO, USA
| | - Tadashi Yoshida
- Medicine/Cardiovascular Medicine, University of Missouri School of Medicine, Columbia, MO, USA; Department of Medical Pharmacology and Physiology, University of Missouri School of Medicine, Columbia, MO, USA
| | - Makoto Noda
- Department of Molecular Oncology, Kyoto University Graduate School of Medicine, Sakyo-ku, Kyoto 606-8501, Japan
| | - Patrice Delafontaine
- Medicine/Cardiovascular Medicine, University of Missouri School of Medicine, Columbia, MO, USA
| | - Bysani Chandrasekar
- Medicine/Cardiovascular Medicine, University of Missouri School of Medicine, Columbia, MO, USA; Department of Medical Pharmacology and Physiology, University of Missouri School of Medicine, Columbia, MO, USA; Research Service, Harry S. Truman Memorial Veterans' Hospital, Columbia, MO, USA; Dalton Cardiovascular Research Center, University of Missouri, Columbia, MO, USA.
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Adhikara IM, Yagi K, Mayasari DS, Ikeda K, Kitagawa H, Miyata O, Igarashi M, Hatakeyama K, Asada Y, Hirata KI, Emoto N. Chondroitin sulfate N-acetylgalactosaminyltransferase-2 deletion alleviates lipoprotein retention in early atherosclerosis and attenuates aortic smooth muscle cell migration. Biochem Biophys Res Commun 2019; 509:89-95. [DOI: 10.1016/j.bbrc.2018.12.068] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Accepted: 12/11/2018] [Indexed: 11/24/2022]
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45
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Buglak NE, Jiang W, Bahnson ESM. Cinnamic aldehyde inhibits vascular smooth muscle cell proliferation and neointimal hyperplasia in Zucker Diabetic Fatty rats. Redox Biol 2018; 19:166-178. [PMID: 30172101 PMCID: PMC6122148 DOI: 10.1016/j.redox.2018.08.013] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Revised: 08/15/2018] [Accepted: 08/22/2018] [Indexed: 12/15/2022] Open
Abstract
Atherosclerosis remains the number one cause of death and disability worldwide. Atherosclerosis is treated by revascularization procedures to restore blood flow to distal tissue, but these procedures often fail due to restenosis secondary to neointimal hyperplasia. Diabetes mellitus is a metabolic disorder that accelerates both atherosclerosis development and onset of restenosis. Strategies to inhibit restenosis aim at reducing neointimal hyperplasia by inhibiting vascular smooth muscle cell (VSMC) proliferation and migration. Since increased production of reactive oxygen species promotes VSMC proliferation and migration, redox intervention to maintain vascular wall redox homeostasis holds the potential to inhibit arterial restenosis. Cinnamic aldehyde (CA) is an electrophilic Nrf2 activator that has shown therapeutic promise in diabetic rodent models. Nrf2 is a transcription factor that regulates the antioxidant response. Therefore, we hypothesized that CA would activate Nrf2 and would inhibit neointimal hyperplasia after carotid artery balloon injury in the Zucker Diabetic Fatty (ZDF) rat. In primary ZDF VSMC, CA inhibited cell growth by MTT with an EC50 of 118 ± 7 μM. At a therapeutic dose of 100 μM, CA inhibited proliferation of ZDF VSMC in vitro and reduced the proliferative index within the injured artery in vivo, as well as migration of ZDF VSMC in vitro. CA activated the Nrf2 pathway in both ZDF VSMC and injured carotid arteries while also increasing antioxidant defenses and reducing markers of redox dysfunction. Additionally, we noted a significant reduction of neutrophils (69%) and macrophages (78%) within the injured carotid arteries after CA treatment. Lastly, CA inhibited neointimal hyperplasia evidenced by a 53% reduction in the intima:media ratio and a 61% reduction in vessel occlusion compared to arteries treated with vehicle alone. Overall CA was capable of activating Nrf2, and inhibiting neointimal hyperplasia after balloon injury in a rat model of diabetic restenosis.
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MESH Headings
- Acrolein/analogs & derivatives
- Acrolein/therapeutic use
- Animals
- Antioxidants/therapeutic use
- Cell Proliferation/drug effects
- Cells, Cultured
- Diabetes Complications/metabolism
- Diabetes Complications/pathology
- Diabetes Complications/prevention & control
- Diabetes Mellitus/metabolism
- Diabetes Mellitus/pathology
- Hyperplasia/etiology
- Hyperplasia/metabolism
- Hyperplasia/pathology
- Hyperplasia/prevention & control
- Male
- Muscle, Smooth, Vascular/cytology
- Muscle, Smooth, Vascular/drug effects
- Muscle, Smooth, Vascular/metabolism
- Muscle, Smooth, Vascular/pathology
- NF-E2-Related Factor 2/metabolism
- Neointima/etiology
- Neointima/metabolism
- Neointima/pathology
- Neointima/prevention & control
- Rats, Zucker
- Tunica Intima/drug effects
- Tunica Intima/metabolism
- Tunica Intima/pathology
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Affiliation(s)
- Nicholas E Buglak
- Department of Surgery, Division of Vascular Surgery, University of North Carolina at Chapel Hill, NC 27599, USA; Center for Nanotechnology in Drug Delivery, University of North Carolina at Chapel Hill, NC 27599, USA; Curriculum in Toxicology & Environmental Medicine, University of North Carolina at Chapel Hill, NC 27599, USA
| | - Wulin Jiang
- Center for Nanotechnology in Drug Delivery, University of North Carolina at Chapel Hill, NC 27599, USA; Division of Pharmacoengineering and Molecular Pharmaceutics, University of North Carolina at Chapel Hill, NC 27599, USA
| | - Edward S M Bahnson
- Department of Surgery, Division of Vascular Surgery, University of North Carolina at Chapel Hill, NC 27599, USA; Center for Nanotechnology in Drug Delivery, University of North Carolina at Chapel Hill, NC 27599, USA; Curriculum in Toxicology & Environmental Medicine, University of North Carolina at Chapel Hill, NC 27599, USA; Department of Cell Biology & Physiology, University of North Carolina at Chapel Hill, NC 27599, USA.
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Abstract
Objective: Invasive coronary interventions can fail due to intimal hyperplasia and restenosis.
Endothelial cell (EC) seeding to the vessel lumen, accelerating re-endothelialization,
or local release of mTOR pathway inhibitors have helped reduce intimal hyperplasia after
vessel injury. While animal models are powerful tools, they are complex and expensive,
and not always reflective of human physiology. Therefore, we developed an in
vitro 3D vascular model validating previous in vivo animal
models and utilizing isolated human arteries to study vascular remodeling after injury.
Approach: We utilized a bioreactor that enables the control of intramural
pressure and shear stress in vessel conduits to investigate the vascular response in
both rat and human arteries to intraluminal injury. Results: Culturing rat aorta segments in vitro, we show that vigorous removal
of luminal ECs results in vessel injury, causing medial proliferation by Day-4 and
neointima formation, with the observation of SCA1+ cells (stem cell
antigen-1) in the intima by Day-7, in the absence of flow. Conversely, when
endothelial-denuded rat aortae and human umbilical arteries were subjected to arterial
shear stress, pre-seeding with human umbilical ECs decreased the number and
proliferation of smooth muscle cell (SMC) significantly in the media of both rat and
human vessels. Conclusion: Our bioreactor system provides a novel platform for correlating ex
vivo findings with vascular outcomes in vivo. The present
in vitro human arterial injury model can be helpful in the study of
EC-SMC interactions and vascular remodeling, by allowing for the separation of
mechanical, cellular, and soluble factors.
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Affiliation(s)
- Mehmet H Kural
- 1 Vascular Biology and Therapeutics Program, Yale University School of Medicine, New Haven, CT, USA.,2 Department of Anesthesiology, Yale University, New Haven, CT, USA
| | - Guohao Dai
- 3 Department of Bioengineering, Northeastern University, Boston, MA, USA
| | - Laura E Niklason
- 1 Vascular Biology and Therapeutics Program, Yale University School of Medicine, New Haven, CT, USA.,2 Department of Anesthesiology, Yale University, New Haven, CT, USA.,4 Department of Biomedical Engineering, Yale University, New Haven, CT, USA
| | - Liqiong Gui
- 1 Vascular Biology and Therapeutics Program, Yale University School of Medicine, New Haven, CT, USA.,2 Department of Anesthesiology, Yale University, New Haven, CT, USA
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Wu JH, Li Y, Zhou YF, Haslam J, Elvis ON, Mao L, Xia YP, Hu B. Semaphorin-3E attenuates neointimal formation via suppressing VSMCs migration and proliferation. Cardiovasc Res 2018; 113:1763-1775. [PMID: 29016743 DOI: 10.1093/cvr/cvx190] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2017] [Accepted: 09/14/2017] [Indexed: 02/06/2023] Open
Abstract
Aims The migration and proliferation of vascular smooth muscle cells (VSMCs) are crucial events in the neointimal formation, a hallmark of atherosclerosis and restenosis. Semaphorin3E (Sema3E) has been found to be a critical regulator of cell migration and proliferation in many scenarios. However, its role on VSMCs migration and proliferation is unclear. This study aimed to investigate the effect of Sema3E on VSMCs migration, proliferation and neointimal formation, and explore possible mechanisms. Methods and results We found that the expression of Sema3E was progressively decreased during neointimal formation in a carotid ligation model. H&E-staining showed lentivirus-mediated overexpression of Sema3E in carotid ligation area attenuated neointimal formation. Immunofluorescence staining showed that the receptor (PlexinD1) of Sema3E was expressed in vascular walls. In cultured mouse VSMCs, Sema3E inhibited VSMCs migration and proliferation via plexinD1 receptor. The inhibitory effect was mediated, at least in part, by inactivating Rap1-AKT signalling pathways in VSMCs. Moreover, we found that PDGFBB down-regulated the expression of Sema3E in VSMCs and Sema3E notably inhibited the expression of PDGFB in endothelial cells. In addition, the number of Sema3E-positive VSMCs was diminished in plaques of atherosclerotic patients. Results from a public GEO microarray database showed a negative correlation between Sema3E and PDGFB transcriptional levels in the human plaques examined. Conclusion Our study demonstrates that Sema3E/plexinD1 inhibits proliferation and migration of VSMCs via inactivation of Rap1-AKT signalling pathways. The mutual inhibition between PDGF-BB and Sema3E after vascular injury plays a critical role in the process of neointimal formation.
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Affiliation(s)
- Jie-Hong Wu
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Yanan Li
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Yi-Fan Zhou
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - James Haslam
- Swansea College of Medicine, Swansea University, Singleton Park, Swansea, Wales SA2 8PP, UK
| | - Opoku Nana Elvis
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Ling Mao
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Yuan-Peng Xia
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Bo Hu
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
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Robichaux WG, Cheng X. Intracellular cAMP Sensor EPAC: Physiology, Pathophysiology, and Therapeutics Development. Physiol Rev 2018; 98:919-1053. [PMID: 29537337 PMCID: PMC6050347 DOI: 10.1152/physrev.00025.2017] [Citation(s) in RCA: 135] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Revised: 09/05/2017] [Accepted: 09/06/2017] [Indexed: 12/13/2022] Open
Abstract
This review focuses on one family of the known cAMP receptors, the exchange proteins directly activated by cAMP (EPACs), also known as the cAMP-regulated guanine nucleotide exchange factors (cAMP-GEFs). Although EPAC proteins are fairly new additions to the growing list of cAMP effectors, and relatively "young" in the cAMP discovery timeline, the significance of an EPAC presence in different cell systems is extraordinary. The study of EPACs has considerably expanded the diversity and adaptive nature of cAMP signaling associated with numerous physiological and pathophysiological responses. This review comprehensively covers EPAC protein functions at the molecular, cellular, physiological, and pathophysiological levels; and in turn, the applications of employing EPAC-based biosensors as detection tools for dissecting cAMP signaling and the implications for targeting EPAC proteins for therapeutic development are also discussed.
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Affiliation(s)
- William G Robichaux
- Department of Integrative Biology and Pharmacology, Texas Therapeutics Institute, The Brown Foundation Institute of Molecular Medicine, The University of Texas Health Science Center , Houston, Texas
| | - Xiaodong Cheng
- Department of Integrative Biology and Pharmacology, Texas Therapeutics Institute, The Brown Foundation Institute of Molecular Medicine, The University of Texas Health Science Center , Houston, Texas
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49
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Fischer JW. Role of hyaluronan in atherosclerosis: Current knowledge and open questions. Matrix Biol 2018; 78-79:324-336. [PMID: 29510229 DOI: 10.1016/j.matbio.2018.03.003] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Revised: 02/20/2018] [Accepted: 03/01/2018] [Indexed: 12/21/2022]
Abstract
Hyaluronan (HA), HA synthases (HAS) and HA receptors are expressed during the progression of atherosclerotic plaques. HA is thought to promote the activated phenotype of local vascular smooth muscle cells characterized by increased migration, proliferation and matrix synthesis. Furthermore, HA may modulate the immune response by increasing macrophage retention and by promoting the polarization of Th1 cells that enhance macrophage driven inflammation as well. The pro-atherosclerotic functions of HA are opposed by the presence of HA in the glycocalyx where it critically contributes to anti-thrombotic and anti-inflammatory function of the glycocalyx. Patients with atherosclerosis often are affected by comorbidities among them diabetes mellitus type 2 and inflammatory comorbidities. Diabetes mellitus type 2 likely has close interrelations to HA synthesis in atherosclerosis because the activity and transcription of HA synthases are sensitive to the intracellular glucose metabolism, which determines the substrate availability and the posttranslational modifications of HA synthases. The pro-inflammatory comorbidities aggravate the course of atherosclerosis and will affect the expression of the genes related to HA biosynthesis, -degradation, HA-matrix assembly or signaling. One example being the induction of HAS3 by interleukin-1β and other cytokines. Furthermore complications of atherosclerosis such as the healing after myocardial infarction also involve HA responses.
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Affiliation(s)
- Jens W Fischer
- Institut für Pharmakologie und Klinische Pharmakologie, University Hospital, Heinrich-Heine-University Düsseldorf, Düsseldorf, Germany; CARID, Cardiovascular Research Institute Düsseldorf, University Hospital, Heinrich-Heine-University Düsseldorf, Düsseldorf, Germany.
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Huhtinen A, Hongisto V, Laiho A, Löyttyniemi E, Pijnenburg D, Scheinin M. Gene expression profiles and signaling mechanisms in α 2B-adrenoceptor-evoked proliferation of vascular smooth muscle cells. BMC SYSTEMS BIOLOGY 2017; 11:65. [PMID: 28659168 PMCID: PMC5490158 DOI: 10.1186/s12918-017-0439-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/03/2016] [Accepted: 06/09/2017] [Indexed: 12/31/2022]
Abstract
BACKGROUND α2-adrenoceptors are important regulators of vascular tone and blood pressure. Regulation of cell proliferation is a less well investigated consequence of α2-adrenoceptor activation. We have previously shown that α2B-adrenoceptor activation stimulates proliferation of vascular smooth muscle cells (VSMCs). This may be important for blood vessel development and plasticity and for the pathology and therapeutics of cardiovascular disorders. The underlying cellular mechanisms have remained mostly unknown. This study explored pathways of regulation of gene expression and intracellular signaling related to α2B-adrenoceptor-evoked VSMC proliferation. RESULTS The cellular mechanisms and signaling pathways of α2B-adrenoceptor-evoked proliferation of VSMCs are complex and include redundancy. Functional enrichment analysis and pathway analysis identified differentially expressed genes associated with α2B-adrenoceptor-regulated VSMC proliferation. They included the upregulated genes Egr1, F3, Ptgs2 and Serpine1 and the downregulated genes Cx3cl1, Cav1, Rhoa, Nppb and Prrx1. The most highly upregulated gene, Lypd8, represents a novel finding in the VSMC context. Inhibitor library screening and kinase activity profiling were applied to identify kinases in the involved signaling pathways. Putative upstream kinases identified by two different screens included PKC, Raf-1, Src, the MAP kinases p38 and JNK and the receptor tyrosine kinases EGFR and HGF/HGFR. As a novel finding, the Src family kinase Lyn was also identified as a putative upstream kinase. CONCLUSIONS α2B-adrenoceptors may mediate their pro-proliferative effects in VSMCs by promoting the activity of bFGF and PDGF and the growth factor receptors EGFR, HGFR and VEGFR-1/2. The Src family kinase Lyn was also identified as a putative upstream kinase. Lyn is known to be expressed in VSMCs and has been identified as an important regulator of GPCR trafficking and GPCR effects on cell proliferation. Identified Ser/Thr kinases included several PKC isoforms and the β-adrenoceptor kinases 1 and 2. Cross-talk between the signaling mechanisms involved in α2B-adrenoceptor-evoked VSMC proliferation thus appears to involve PKC activation, subsequent changes in gene expression, transactivation of EGFR, and modulation of kinase activities and growth factor-mediated signaling. While many of the identified individual signals were relatively small in terms of effect size, many of them were validated by combining pathway analysis and our integrated screening approach.
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Affiliation(s)
- Anna Huhtinen
- Department of Pharmacology, Drug Development and Therapeutics, Institute of Biomedicine, University of Turku, Kiinamyllynkatu 10, FI-20520 Turku, Finland
- Unit of Clinical Pharmacology, Turku University Hospital, Turku, Finland
| | - Vesa Hongisto
- Toxicology Division, Misvik Biology Oy, Turku, Finland
| | - Asta Laiho
- Turku Centre for Biotechnology, University of Turku and Åbo Akademi University, Turku, Finland
| | - Eliisa Löyttyniemi
- Department of Biostatistics, Department of Clinical Medicine, University of Turku, Turku, Finland
| | - Dirk Pijnenburg
- PamGene International BV, Wolvenhoek 10, 5211HH s’Hertogenbosch, The Netherlands
| | - Mika Scheinin
- Department of Pharmacology, Drug Development and Therapeutics, Institute of Biomedicine, University of Turku, Kiinamyllynkatu 10, FI-20520 Turku, Finland
- Unit of Clinical Pharmacology, Turku University Hospital, Turku, Finland
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