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Paredes F, Williams HC, Liu X, Holden C, Bogan B, Wang Y, Crotty KM, Yeligar SM, Elorza AA, Lin Z, Rezvan A, San Martin A. The mitochondrial protease ClpP is a druggable target that controls VSMC phenotype by a SIRT1-dependent mechanism. Redox Biol 2024; 73:103203. [PMID: 38823208 PMCID: PMC11169483 DOI: 10.1016/j.redox.2024.103203] [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: 02/19/2024] [Revised: 05/12/2024] [Accepted: 05/20/2024] [Indexed: 06/03/2024] Open
Abstract
Vascular smooth muscle cells (VSMCs), known for their remarkable lifelong phenotypic plasticity, play a pivotal role in vascular pathologies through their ability to transition between different phenotypes. Our group discovered that the deficiency of the mitochondrial protein Poldip2 induces VSMC differentiation both in vivo and in vitro. Further comprehensive biochemical investigations revealed Poldip2's specific interaction with the mitochondrial ATPase caseinolytic protease chaperone subunit X (CLPX), which is the regulatory subunit for the caseinolytic protease proteolytic subunit (ClpP) that forms part of the ClpXP complex - a proteasome-like protease evolutionarily conserved from bacteria to humans. This interaction limits the protease's activity, and reduced Poldip2 levels lead to ClpXP complex activation. This finding prompted the hypothesis that ClpXP complex activity within the mitochondria may regulate the VSMC phenotype. Employing gain-of-function and loss-of-function strategies, we demonstrated that ClpXP activity significantly influences the VSMC phenotype. Notably, both genetic and pharmacological activation of ClpXP inhibits VSMC plasticity and fosters a quiescent, differentiated, and anti-inflammatory VSMC phenotype. The pharmacological activation of ClpP using TIC10, currently in phase III clinical trials for cancer, successfully replicates this phenotype both in vitro and in vivo and markedly reduces aneurysm development in a mouse model of elastase-induced aortic aneurysms. Our mechanistic exploration indicates that ClpP activation regulates the VSMC phenotype by modifying the cellular NAD+/NADH ratio and activating Sirtuin 1. Our findings reveal the crucial role of mitochondrial proteostasis in the regulation of the VSMC phenotype and propose the ClpP protease as a novel, actionable target for manipulating the VSMC phenotype.
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Affiliation(s)
- Felipe Paredes
- Department of Medicine, Division of Cardiology, Emory University, Atlanta, GA, United States
| | - Holly C Williams
- Department of Medicine, Division of Cardiology, Emory University, Atlanta, GA, United States
| | - Xuesong Liu
- Department of Medicine, Division of Cardiology, Emory University, Atlanta, GA, United States; Department of Cardiology, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Claire Holden
- Department of Medicine, Division of Cardiology, Emory University, Atlanta, GA, United States
| | - Bethany Bogan
- Department of Medicine, Division of Cardiology, Emory University, Atlanta, GA, United States
| | - Yu Wang
- Department of Medicine, Division of Cardiology, Emory University, Atlanta, GA, United States
| | - Kathryn M Crotty
- Department of Medicine, Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, Emory University, Atlanta, GA, United States; Atlanta Veterans Affairs Health Care System, Decatur, GA, United States
| | - Samantha M Yeligar
- Department of Medicine, Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, Emory University, Atlanta, GA, United States; Atlanta Veterans Affairs Health Care System, Decatur, GA, United States
| | - Alvaro A Elorza
- Institute of Biomedical Sciences, Faculty of Medicine and Faculty of Life Sciences, Universidad Andres Bello, Santiago, Chile
| | - Zhiyong Lin
- Department of Medicine, Division of Cardiology, Emory University, Atlanta, GA, United States
| | - Amir Rezvan
- Department of Medicine, Division of Cardiology, Emory University, Atlanta, GA, United States
| | - Alejandra San Martin
- Department of Medicine, Division of Cardiology, Emory University, Atlanta, GA, United States; Institute of Biomedical Sciences, Faculty of Medicine and Faculty of Life Sciences, Universidad Andres Bello, Santiago, Chile.
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Ye Z, Zhu S, Li G, Lu J, Huang S, Du J, Shao Y, Ji Z, Li P. Early matrix softening contributes to vascular smooth muscle cell phenotype switching and aortic dissection through down-regulation of microRNA-143/145. J Mol Cell Cardiol 2024; 192:1-12. [PMID: 38718921 DOI: 10.1016/j.yjmcc.2024.05.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Revised: 05/04/2024] [Accepted: 05/04/2024] [Indexed: 05/14/2024]
Abstract
Thoracic aortic dissection (TAD) is characterized by extracellular matrix (ECM) dysregulation. Aberrations in the ECM stiffness can lead to changes in cellular functions. However, the mechanism by which ECM softening regulates vascular smooth muscle cell (VSMCs) phenotype switching remains unclear. To understand this mechanism, we cultured VSMCs in a soft extracellular matrix and discovered that the expression of microRNA (miR)-143/145, mediated by activation of the AKT signalling pathway, decreased significantly. Furthermore, overexpression of miR-143/145 reduced BAPN-induced aortic softening, switching the VSMC synthetic phenotype and the incidence of TAD in mice. Additionally, high-throughput sequencing of immunoprecipitated RNA indicated that the TEA domain transcription factor 1 (TEAD1) is a common target gene of miR-143/145, which was subsequently verified using a luciferase reporter assay. TEAD1 is upregulated in soft ECM hydrogels in vitro, whereas the switch to a synthetic phenotype in VSMCs decreases after TEAD1 knockdown. Finally, we verified that miR-143/145 levels are associated with disease severity and prognosis in patients with thoracic aortic dissection. ECM softening, as a result of promoting the VSMCs switch to a synthetic phenotype by downregulating miR-143/145, is an early trigger of TAD and provides a therapeutic target for this fatal disease. miR-143/145 plays a role in the early detection of aortic dissection and its severity and prognosis, which can offer information for future risk stratification of patients with dissection.
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Affiliation(s)
- Zhaofei Ye
- Beijing Anzhen Hospital of Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Diseases, China
| | - Shuolin Zhu
- Beijing Anzhen Hospital of Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Diseases, China
| | - Guoqi Li
- Beijing Anzhen Hospital of Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Diseases, China
| | - Jie Lu
- Beijing Anzhen Hospital of Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Diseases, China
| | - Shan Huang
- Beijing Anzhen Hospital of Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Diseases, China
| | - Jie Du
- Beijing Anzhen Hospital of Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Diseases, China
| | - Yihui Shao
- Beijing Anzhen Hospital of Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Diseases, China.
| | - Zhili Ji
- Beijing Chaoyang Hospital of Capital Medical University, China.
| | - Ping Li
- Beijing Anzhen Hospital of Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Diseases, China.
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3
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Fang G, Tian Y, Huang S, Zhang X, Liu Y, Li Y, Du J, Gao S. KLF15 maintains contractile phenotype of vascular smooth muscle cells and prevents thoracic aortic dissection by interacting with MRTFB. J Biol Chem 2024; 300:107260. [PMID: 38582447 PMCID: PMC11061230 DOI: 10.1016/j.jbc.2024.107260] [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: 01/04/2024] [Revised: 03/26/2024] [Accepted: 03/28/2024] [Indexed: 04/08/2024] Open
Abstract
Thoracic aortic dissection (TAD) is a highly dangerous cardiovascular disorder caused by weakening of the aortic wall, resulting in a sudden tear of the internal face. Progressive loss of the contractile apparatus in vascular smooth muscle cells (VSMCs) is a major event in TAD. Exploring the endogenous regulators essential for the contractile phenotype of VSMCs may aid the development of strategies to prevent TAD. Krüppel-like factor 15 (KLF15) overexpression was reported to inhibit TAD formation; however, the mechanisms by which KLF15 prevents TAD formation and whether KLF15 regulates the contractile phenotype of VSMCs in TAD are not well understood. Therefore, we investigated these unknown aspects of KLF15 function. We found that KLF15 expression was reduced in human TAD samples and β-aminopropionitrile monofumarate-induced TAD mouse model. Klf15KO mice are susceptible to both β-aminopropionitrile monofumarate- and angiotensin II-induced TAD. KLF15 deficiency results in reduced VSMC contractility and exacerbated vascular inflammation and extracellular matrix degradation. Mechanistically, KLF15 interacts with myocardin-related transcription factor B (MRTFB), a potent serum response factor coactivator that drives contractile gene expression. KLF15 silencing represses the MRTFB-induced activation of contractile genes in VSMCs. Thus, KLF15 cooperates with MRTFB to promote the expression of contractile genes in VSMCs, and its dysfunction may exacerbate TAD. These findings indicate that KLF15 may be a novel therapeutic target for the treatment of TAD.
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MESH Headings
- Animals
- Humans
- Male
- Mice
- Angiotensin II/metabolism
- Angiotensin II/pharmacology
- Aortic Aneurysm, Thoracic/metabolism
- Aortic Aneurysm, Thoracic/genetics
- Aortic Aneurysm, Thoracic/pathology
- Dissection, Thoracic Aorta
- Kruppel-Like Transcription Factors/metabolism
- Kruppel-Like Transcription Factors/genetics
- Mice, Inbred C57BL
- Mice, Knockout
- Muscle Contraction/genetics
- Muscle, Smooth, Vascular/metabolism
- Muscle, Smooth, Vascular/pathology
- Muscle, Smooth, Vascular/cytology
- Myocytes, Smooth Muscle/metabolism
- Myocytes, Smooth Muscle/pathology
- Phenotype
- Transcription Factors/metabolism
- Transcription Factors/genetics
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Affiliation(s)
- Guangming Fang
- Collaborative Innovation Centre for Cardiovascular Disorders, The Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing Anzhen Hospital, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Capital Medical University, Beijing, China
| | - Yexuan Tian
- Collaborative Innovation Centre for Cardiovascular Disorders, The Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing Anzhen Hospital, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Capital Medical University, Beijing, China
| | - Shan Huang
- Collaborative Innovation Centre for Cardiovascular Disorders, The Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing Anzhen Hospital, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Capital Medical University, Beijing, China
| | - Xiaoping Zhang
- Collaborative Innovation Centre for Cardiovascular Disorders, The Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing Anzhen Hospital, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Capital Medical University, Beijing, China
| | - Yan Liu
- Collaborative Innovation Centre for Cardiovascular Disorders, The Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing Anzhen Hospital, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Capital Medical University, Beijing, China
| | - Yulin Li
- Collaborative Innovation Centre for Cardiovascular Disorders, The Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing Anzhen Hospital, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Capital Medical University, Beijing, China
| | - Jie Du
- Collaborative Innovation Centre for Cardiovascular Disorders, The Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing Anzhen Hospital, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Capital Medical University, Beijing, China.
| | - Shijuan Gao
- Collaborative Innovation Centre for Cardiovascular Disorders, The Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing Anzhen Hospital, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Capital Medical University, Beijing, China.
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4
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Dang Z, Li H, Xue S, Shao B, Ning Y, Su G, Zhang F, Yu W, Leng S. Histone deacetylase 9-mediated phenotypic transformation of vascular smooth muscle cells is a potential target for treating aortic aneurysm/dissection. Biomed Pharmacother 2024; 173:116396. [PMID: 38460370 DOI: 10.1016/j.biopha.2024.116396] [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: 11/19/2023] [Revised: 02/29/2024] [Accepted: 03/06/2024] [Indexed: 03/11/2024] Open
Abstract
Aortic aneurysm/dissection (AAD) is a serious cardiovascular condition characterized by rapid onset and high mortality rates. Currently, no effective drug treatment options are known for AAD. AAD pathogenesis is associated with the phenotypic transformation and abnormal proliferation of vascular smooth muscle cells (VSMCs). However, endogenous factors that contribute to AAD progression remain unclear. We aimed to investigate the role of histone deacetylase 9 (HDAC9) in AAD pathogenesis. HDAC9 expression was considerably increased in human thoracic aortic dissection specimens. Using RNA-sequencing (RNA-seq) and chromatin immunoprecipitation, we demonstrated that HDAC9 transcriptionally inhibited the expression of superoxide dismutase 2 and insulin-like growth factor-binding protein-3, which are critically involved in various signaling pathways. Furthermore, HDAC9 triggered the transformation of VSMCs from a systolic to synthetic phenotype, increasing their proliferation and migration abilities and suppressing their apoptosis. Consistent with these results, in vivo experiments revealed that TMP195, a pharmacological inhibitor of HDAC9, suppressed the formation of the β-aminopropionitrile-induced AAD phenotype in mice. Our findings indicate that HDAC9 may be a novel endogenous risk factor that promotes the onset of AAD by mediating the phenotypic transformation of VSMCs. Therefore, HDAC9 may serve as a potential therapeutic target for drug-based AAD treatment. Furthermore, TMP195 holds potential as a therapeutic agent for AAD treatment.
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Affiliation(s)
- Zhiqiao Dang
- Department of Cardiac Surgery, Central Hospital Affiliated to Shandong First Medical University, Jinan, Shandong 250013, China
| | - Haijie Li
- Department of Cardiac Surgery, Central Hospital Affiliated to Shandong First Medical University, Jinan, Shandong 250013, China
| | - Shishan Xue
- Research Center of Translational Medicine, Central Hospital Affiliated to Shandong First Medical University, Jinan, Shandong 250013, China
| | - Baowei Shao
- Department of Cardiac Surgery, Central Hospital Affiliated to Shandong First Medical University, Jinan, Shandong 250013, China
| | - Yansong Ning
- Department of Cardiac Surgery, Central Hospital Affiliated to Shandong First Medical University, Jinan, Shandong 250013, China
| | - Guohai Su
- Research Center of Translational Medicine, Central Hospital Affiliated to Shandong First Medical University, Jinan, Shandong 250013, China
| | - Fengquan Zhang
- Department of Cardiac Surgery, Central Hospital Affiliated to Shandong First Medical University, Jinan, Shandong 250013, China.
| | - Wenqian Yu
- Department of Cardiac Surgery, Central Hospital Affiliated to Shandong First Medical University, Jinan, Shandong 250013, China; Research Center of Translational Medicine, Central Hospital Affiliated to Shandong First Medical University, Jinan, Shandong 250013, China.
| | - Shuai Leng
- Department of Cardiac Surgery, Central Hospital Affiliated to Shandong First Medical University, Jinan, Shandong 250013, China; Research Center of Translational Medicine, Central Hospital Affiliated to Shandong First Medical University, Jinan, Shandong 250013, China.
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5
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Liu W, Han J, Yang Q, Xia L, Chen C, Song J, Cai Y. Knockdown of ARHGAP24 reduces intimal hyperplasia through inhibiting the proliferation and phenotypic switching of smooth muscle cells possibly by inactivating both AKT and ERK1/2 signaling pathways. Biochem Biophys Rep 2024; 37:101591. [PMID: 38074998 PMCID: PMC10698571 DOI: 10.1016/j.bbrep.2023.101591] [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: 09/26/2023] [Revised: 11/10/2023] [Accepted: 11/20/2023] [Indexed: 02/29/2024] Open
Abstract
Intimal hyperplasia is one of the common pathophysiological foundations of vascular remodeling including restenosis and atherosclerosis. The Rho GTPase activating protein 24 (ARHGAP24) has been reported as a tumor suppressor in multiple cancers. Nevertheless, the role of ARHGAP24 in intimal hyperplasia is unclear. Interestingly, our results showed that ARHGAP24 was significantly up-regulated in dedifferentiated VSMC in vitro and vivo, which suggested that ARHGAP24 could promote VSMC dedifferentiation and proliferation. Knockdown of ARHGAP24 effectively inhibited VSMC dedifferentiation and proliferation in the absence and present of PDGF-BB, which might inactivate both ATK and ERK1/2 signaling pathways. Moreover, AAV9-mediated silencing of Arhgap24 also alleviates VSMC dedifferentiation and proliferation in the wire-injured mouse femoral arteries, contributing to reducing neointima formation. AAV9-mediated overexpression of Arhgap24 exacerbates intimal hyperplasia. We demonstrate that decreased ARHGAP24 expression restrained VSMC proliferation and dedifferentiation possibly by inactivating both AKT and ERK1/2 signaling pathways, which may provide a potential therapeutic strategy for diseases associated with intimal hyperplasia including restenosis and atherosclerosis.
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Affiliation(s)
- Wei Liu
- Department of Pediatrics, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510655, Guangdong Province, China
| | - Jing Han
- Neonatal Intensive Care Unit, Longgang District Maternity & Child Healthcare Hospital of Shenzhen City, Longgang Maternity and Child Institute of Shantou University Medical College, Shenzhen, 518172, Guangdong Province, China
| | - Qiuping Yang
- Department of Pediatrics, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510655, Guangdong Province, China
| | - Luoxing Xia
- Key Laboratory of Molecular Target & Clinical Pharmacology, School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou, 511436, Guangdong Province, China
| | - Cheng Chen
- Neonatal Intensive Care Unit, Longgang District Maternity & Child Healthcare Hospital of Shenzhen City, Longgang Maternity and Child Institute of Shantou University Medical College, Shenzhen, 518172, Guangdong Province, China
| | - Jie Song
- Department of Pediatrics, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, 519000, Guangdong Province, China
| | - Yao Cai
- Department of Pediatrics, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510655, Guangdong Province, China
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Feng K, Zhang Z, Luo J, Wang W, Li T, Luo J, Huang H. Integrated bulk and scRNA sequence identified anoikis-related diagnostic biomarkers and potential association with immune infiltration in type A aortic dissection. Aging (Albany NY) 2023; 15:11268-11285. [PMID: 37877967 PMCID: PMC10637813 DOI: 10.18632/aging.205126] [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: 08/01/2023] [Accepted: 09/27/2023] [Indexed: 10/26/2023]
Abstract
Type-A aortic dissection (TAAD) is common life-threatening cardiovascular diseases with high-morbidity and mortality but the concrete etiology of disease remains unclear, which might disturb or delay the early diagnosis for TAAD. Anoikis is a special form of programmed cell-death (PCD) induced by detachment of anchorage-dependent cells from the extracellular matrix (ECM) or neighboring cells, and has been widely applied to identify anoikis-related biomarkers for the prediction and prognosis in oncological fields. However, the specific roles of anoikis-related genes (ARGs) in TAAD remain unclear. In this study, we first identified and validated eight diagnostic ARGs for TAAD based on multiple RNA-sequence datasets, including CHEK2, HIF1A, HK2, HMGA1, SERPINA1, PTPN1, SLC2A1 and VEGFA. The comprehensive functional annotation was evaluated by the integrated functional enrichments analysis. We identified the activation of inflammatory-related pathways, metabolic reprogramming and angiogenesis, and the inhibition of cardiovascular development pathways in TAAD. Immune cell infiltration (ICI) analysis further demonstrated that innate immune-cells were more dominant than adaptive immune-cells in TAAD tissues, especially in macrophages, monocytes, activated-DC, NKT cells and CD56+dim NK cells. The cellular landscape was further validated by single-cell RNA sequence technology with significant associations with anoikis in TAAD patients. Four vital ARGs (HIF1A, HMGA1, SERPINA1 and VEGFA) were ultimately identified along with the changes of differentiation trajectory, and major expressions were conformably concentrated on Macro1-3, Mono1-2 and Mono4 subtypes. These findings provide a promising diagnostic biomarker for the accurately diagnosing the disease and would be helpful to further explore the potential pathogenesis with anoikis process for TAAD.
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Affiliation(s)
- Kexiang Feng
- Department of Cardiac Surgery, The First Affiliated Hospital of Kunming Medical University, Yunnan, China
| | - Zhongwei Zhang
- Department of Cardiac Surgery, The First Affiliated Hospital of Kunming Medical University, Yunnan, China
| | - Jie Luo
- Department of Cardiac Surgery, The First Affiliated Hospital of Kunming Medical University, Yunnan, China
| | - Wenjie Wang
- Department of Cardiac Surgery, The First Affiliated Hospital of Kunming Medical University, Yunnan, China
| | - Tianjie Li
- School of Clinical Medicine, Tsinghua University, Beijing, People’s Republic of China
| | - Jing Luo
- School of Clinical Medicine, Tsinghua University, Beijing, People’s Republic of China
| | - Hongbo Huang
- Department of Cardiac Surgery, The First Affiliated Hospital of Kunming Medical University, Yunnan, China
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7
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Zhang TT, Lei QQ, He J, Guan X, Zhang X, Huang Y, Zhou ZY, Fan RX, Wang T, Li CX, Shang JY, Lin ZM, Peng WL, Xia LK, He YL, Hong CY, Ou JS, Pang RP, Fan XP, Huang H, Zhou JG. Bestrophin3 Deficiency in Vascular Smooth Muscle Cells Activates MEKK2/3-MAPK Signaling to Trigger Spontaneous Aortic Dissection. Circulation 2023; 148:589-606. [PMID: 37203562 DOI: 10.1161/circulationaha.122.063029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Accepted: 04/27/2023] [Indexed: 05/20/2023]
Abstract
BACKGROUND Aortic dissection (AD) is a fatal cardiovascular disorder without effective medications due to unclear pathogenic mechanisms. Bestrophin3 (Best3), the predominant isoform of bestrophin family in vessels, has emerged as critical for vascular pathological processes. However, the contribution of Best3 to vascular diseases remains elusive. METHODS Smooth muscle cell-specific and endothelial cell-specific Best3 knockout mice (Best3SMKO and Best3ECKO, respectively) were engineered to investigate the role of Best3 in vascular pathophysiology. Functional studies, single-cell RNA sequencing, proteomics analysis, and coimmunoprecipitation coupled with mass spectrometry were performed to evaluate the function of Best3 in vessels. RESULTS Best3 expression in aortas of human AD samples and mouse AD models was decreased. Best3SMKO but not Best3ECKO mice spontaneously developed AD with age, and the incidence reached 48% at 72 weeks of age. Reanalysis of single-cell transcriptome data revealed that reduction of fibromyocytes, a fibroblast-like smooth muscle cell cluster, was a typical feature of human ascending AD and aneurysm. Consistently, Best3 deficiency in smooth muscle cells decreased the number of fibromyocytes. Mechanistically, Best3 interacted with both MEKK2 and MEKK3, and this interaction inhibited phosphorylation of MEKK2 at serine153 and MEKK3 at serine61. Best3 deficiency induced phosphorylation-dependent inhibition of ubiquitination and protein turnover of MEKK2/3, thereby activating the downstream mitogen-activated protein kinase signaling cascade. Furthermore, restoration of Best3 or inhibition of MEKK2/3 prevented AD progression in angiotensin II-infused Best3SMKO and ApoE-/- mice. CONCLUSIONS These findings unveil a critical role of Best3 in regulating smooth muscle cell phenotypic switch and aortic structural integrity through controlling MEKK2/3 degradation. Best3-MEKK2/3 signaling represents a novel therapeutic target for AD.
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Affiliation(s)
- Ting-Ting Zhang
- Program of Cardiovascular Research, The Eighth Affiliated Hospital (T.-T.Z., H.H., J.-G.Z.), Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong, China
- Department of Pharmacology, Cardiac and Cerebrovascular Research Center (T.-T.Z., Q.-Q.L., X.G., X.Z., Z.-Y.Z., T.W., J.-Y.S., Z.-M.L., W.-L.P., L.-K.X., Y.-L.H., Z.-G.Z.), Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong, China
- Department of Cardiology, The Eighth Affiliated Hospital of Sun Yat-sen University, Shenzhen, Guangdong, China (T.-T.Z., Y.H., H.H.)
| | - Qing-Qing Lei
- Department of Pharmacology, Cardiac and Cerebrovascular Research Center (T.-T.Z., Q.-Q.L., X.G., X.Z., Z.-Y.Z., T.W., J.-Y.S., Z.-M.L., W.-L.P., L.-K.X., Y.-L.H., Z.-G.Z.), Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Jie He
- Department of Cardiovascular Surgery, Guangdong Provincial Hospital of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangdong, China (J.H., X.-P.F.)
- Division of Vascular Surgery, National-Guangdong Joint Engineering Laboratory for Diagnosis and Treatment of Vascular Diseases (J.H.), NHC Key Laboratory of Assisted Circulation (Sun Yat-Sen University), The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - Xin Guan
- Department of Pharmacology, Cardiac and Cerebrovascular Research Center (T.-T.Z., Q.-Q.L., X.G., X.Z., Z.-Y.Z., T.W., J.-Y.S., Z.-M.L., W.-L.P., L.-K.X., Y.-L.H., Z.-G.Z.), Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Xin Zhang
- Department of Pharmacology, Cardiac and Cerebrovascular Research Center (T.-T.Z., Q.-Q.L., X.G., X.Z., Z.-Y.Z., T.W., J.-Y.S., Z.-M.L., W.-L.P., L.-K.X., Y.-L.H., Z.-G.Z.), Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Ying Huang
- Department of Cardiology, The Eighth Affiliated Hospital of Sun Yat-sen University, Shenzhen, Guangdong, China (T.-T.Z., Y.H., H.H.)
| | - Zi-Yue Zhou
- Department of Pharmacology, Cardiac and Cerebrovascular Research Center (T.-T.Z., Q.-Q.L., X.G., X.Z., Z.-Y.Z., T.W., J.-Y.S., Z.-M.L., W.-L.P., L.-K.X., Y.-L.H., Z.-G.Z.), Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Rui-Xin Fan
- Department of Cardiac Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China (R.-X.F., C.-X.L.)
| | - Ting Wang
- Department of Pharmacology, Cardiac and Cerebrovascular Research Center (T.-T.Z., Q.-Q.L., X.G., X.Z., Z.-Y.Z., T.W., J.-Y.S., Z.-M.L., W.-L.P., L.-K.X., Y.-L.H., Z.-G.Z.), Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Chen-Xi Li
- Department of Cardiac Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China (R.-X.F., C.-X.L.)
| | - Jin-Yan Shang
- Department of Pharmacology, Cardiac and Cerebrovascular Research Center (T.-T.Z., Q.-Q.L., X.G., X.Z., Z.-Y.Z., T.W., J.-Y.S., Z.-M.L., W.-L.P., L.-K.X., Y.-L.H., Z.-G.Z.), Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Zhuo-Miao Lin
- Department of Pharmacology, Cardiac and Cerebrovascular Research Center (T.-T.Z., Q.-Q.L., X.G., X.Z., Z.-Y.Z., T.W., J.-Y.S., Z.-M.L., W.-L.P., L.-K.X., Y.-L.H., Z.-G.Z.), Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Wan-Li Peng
- Department of Pharmacology, Cardiac and Cerebrovascular Research Center (T.-T.Z., Q.-Q.L., X.G., X.Z., Z.-Y.Z., T.W., J.-Y.S., Z.-M.L., W.-L.P., L.-K.X., Y.-L.H., Z.-G.Z.), Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Li-Kai Xia
- Department of Pharmacology, Cardiac and Cerebrovascular Research Center (T.-T.Z., Q.-Q.L., X.G., X.Z., Z.-Y.Z., T.W., J.-Y.S., Z.-M.L., W.-L.P., L.-K.X., Y.-L.H., Z.-G.Z.), Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Yu-Ling He
- Department of Pharmacology, Cardiac and Cerebrovascular Research Center (T.-T.Z., Q.-Q.L., X.G., X.Z., Z.-Y.Z., T.W., J.-Y.S., Z.-M.L., W.-L.P., L.-K.X., Y.-L.H., Z.-G.Z.), Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Chuan-Ying Hong
- Department of Physiology, Pain Research Center, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, Guangdong, China (C.-Y.H., R.-P.P.)
| | - Jing-Song Ou
- Division of Cardiac Surgery, National-Guangdong Joint Engineering Laboratory for Diagnosis and Treatment of Vascular Diseases (J.-S.O.) NHC Key Laboratory of Assisted Circulation (Sun Yat-Sen University), The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - Rui-Ping Pang
- Department of Physiology, Pain Research Center, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, Guangdong, China (C.-Y.H., R.-P.P.)
| | - Xiao-Ping Fan
- Department of Cardiovascular Surgery, Guangdong Provincial Hospital of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangdong, China (J.H., X.-P.F.)
| | - Hui Huang
- Program of Cardiovascular Research, The Eighth Affiliated Hospital (T.-T.Z., H.H., J.-G.Z.), Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong, China
- Department of Cardiology, The Eighth Affiliated Hospital of Sun Yat-sen University, Shenzhen, Guangdong, China (T.-T.Z., Y.H., H.H.)
| | - Jia-Guo Zhou
- Program of Cardiovascular Research, The Eighth Affiliated Hospital (T.-T.Z., H.H., J.-G.Z.), Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong, China
- Guangdong Province Key Laboratory of Brain Function and Disease (J.-G.Z.), Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong, China
- Program of Kidney and Cardiovascular Disease, The Fifth Affiliated Hospital (J.-G.Z.), Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong, China
- Guangzhou Institute of Cardiovascular Disease, Affiliated Guangzhou Women and Children's Hospital, School of Basic Medical Sciences, Guangzhou Medical University, Guangdong, China (J.-G.Z.)
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8
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Zhang H, Zhang Y, Wang H, Yang P, Lu C, Liu Y, Xu Z, Wang C, Hu J. Global proteomic analysis reveals lysine succinylation contributes to the pathogenesis of aortic aneurysm and dissection. J Proteomics 2023; 280:104889. [PMID: 36966968 DOI: 10.1016/j.jprot.2023.104889] [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: 12/15/2022] [Revised: 03/09/2023] [Accepted: 03/09/2023] [Indexed: 04/08/2023]
Abstract
Protein lysine succinylation is a recently discovered posttranslational modification. This study examined the role of protein lysine succinylation in the pathogenesis of aortic aneurysm and dissection (AAD). 4D label-free LC-MS/MS analysis was used to perform the global profiles of succinylation in aortas obtained from 5 heart transplant donors, 5 patients with thoracic aortic aneurysm (TAA), and 5 patients with thoracic aortic dissection (TAD). In comparison to normal controls, we detected 1138 succinylated sites from 314 proteins in TAA, and 1499 sites from 381 proteins in TAD. Among these, 120 differentially succinylated sites from 76 proteins overlapped between TAA and TAD (|log2FC| > 0.585, p < 0.05). These differentially modified proteins were mainly localized in the mitochondria and cytoplasm, and were primarily involved in diverse energy metabolic processes, including carbon metabolism, amino acid catabolism, and β-oxidation of fatty acids. By establishing an in vitro model of lysine succinylation in vascular smooth muscle cells, we observed changes in the activities of three key metabolic enzymes (PKM, LDHA, and SDHA). These findings suggest that succinylation potentially contributes to the pathogenesis of aortic diseases, and presents a valuable resource for investigating the functional roles and regulatory mechanisms of succinylation in AAD. SIGNIFICANCE: AAD are interrelated life-threatening diseases associated with high morbidity and mortality. Although we discovered that lysine succinylation was significantly up-regulated in the aorta tissues of patients with AAD, its role in the progression of aortic diseases is largely unknown. We conducted a 4D label-free LC-MS/MS analysis and identified 120 differentially succinylated sites on 76 proteins that overlapped between TAA and TAD as compared to normal controls. Lysine succinylation may contribute to the pathogenesis of AAD by regulating energy metabolism pathways. The proteins containing succinylated sites could be served as potential diagnostic markers and therapeutic targets for aortic diseases.
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Affiliation(s)
- Hongwei Zhang
- Department of Cardiovascular Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan, PR China; Cardiovascular Surgery Research Laboratory, West China Hospital, Sichuan University, Chengdu, Sichuan, PR China
| | - Yu Zhang
- Department of Cardiovascular Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan, PR China
| | - Haiyue Wang
- Department of Cardiovascular Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan, PR China
| | - Peng Yang
- Department of Cardiovascular Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan, PR China; Cardiovascular Surgery Research Laboratory, West China Hospital, Sichuan University, Chengdu, Sichuan, PR China
| | - Chen Lu
- Department of Cardiovascular Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan, PR China
| | - Yu Liu
- Department of Cardiovascular Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan, PR China
| | - Zhenyuan Xu
- Department of Cardiovascular Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan, PR China
| | - Chenhao Wang
- Department of Cardiovascular Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan, PR China
| | - Jia Hu
- Department of Cardiovascular Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan, PR China; Department of Cardiovascular Surgery, Guangan Hospital of West China Hospital, Sichuan University, Guangan, Sichuan, PR China.
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9
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Du LJ, Sun JY, Zhang WC, Liu Y, Liu Y, Lin WZ, Liu T, Zhu H, Wang YL, Shao S, Zhou LJ, Chen BY, Lu H, Li RG, Jia F, Duan SZ. NCOR1 maintains the homeostasis of vascular smooth muscle cells and protects against aortic aneurysm. Cell Death Differ 2023; 30:618-631. [PMID: 36151473 PMCID: PMC9984378 DOI: 10.1038/s41418-022-01065-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 09/11/2022] [Accepted: 09/12/2022] [Indexed: 11/08/2022] Open
Abstract
Phenotypic modulation of vascular smooth muscle cells (VSMCs) plays critical roles in the pathogenesis of aortic aneurysm (AA). The function of nuclear receptor corepressor1 (NCOR1) in regulation of VSMC phenotype and AA is unclear. Herein, using smooth muscle NCOR1 knockout mice, we demonstrated that smooth muscle NCOR1 deficiency decreased both mRNA and protein levels of contractile genes, impaired stress fibers formation and RhoA pathway activation, reduced synthesis of elastin and collagens, and induced the expression and activity of MMPs, manifesting a switch from contractile to degradative phenotype of VSMCs. NCOR1 modulated VSMC phenotype through 3 different mechanisms. First, NCOR1 deficiency increased acetylated FOXO3a to inhibit the expression of Myocd, which downregulated contractile genes. Second, deletion of NCOR1 derepressed NFAT5 to induce the expression of Rgs1, thus impeding RhoA activation. Third, NCOR1 deficiency increased the expression of Mmp12 and Mmp13 by derepressing ATF3. Finally, a mouse model combined apoE knockout mice with angiotensin II was used to study the role of smooth muscle NCOR1 in the development of AA. The results showed that smooth muscle NCOR1 deficiency increased the incidence of aortic aneurysms and exacerbated medial degeneration in angiotensin II-induced AA mouse model. Collectively, our data illustrated that NCOR1 interacts with FOXO3a, NFAT5, and ATF3 to maintain contractile phenotype of VSMCs and suppress AA development. Manipulation of smooth muscle NCOR1 may be a potential approach for AA treatment.
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Affiliation(s)
- Lin-Juan Du
- Laboratory of Oral Microbiota and Systemic Diseases, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200125, China
- National Center for Stomatology; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology, Shanghai, 200011, China
| | - Jian-Yong Sun
- Laboratory of Oral Microbiota and Systemic Diseases, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200125, China
- National Center for Stomatology; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology, Shanghai, 200011, China
| | - Wu-Chang Zhang
- Laboratory of Oral Microbiota and Systemic Diseases, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200125, China
- National Center for Stomatology; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology, Shanghai, 200011, China
| | - Yuan Liu
- Laboratory of Oral Microbiota and Systemic Diseases, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200125, China
- National Center for Stomatology; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology, Shanghai, 200011, China
| | - Yan Liu
- Laboratory of Oral Microbiota and Systemic Diseases, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200125, China
- National Center for Stomatology; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology, Shanghai, 200011, China
| | - Wen-Zhen Lin
- Laboratory of Oral Microbiota and Systemic Diseases, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200125, China
- National Center for Stomatology; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology, Shanghai, 200011, China
| | - Ting Liu
- Laboratory of Oral Microbiota and Systemic Diseases, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200125, China
- National Center for Stomatology; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology, Shanghai, 200011, China
| | - Hong Zhu
- Laboratory of Oral Microbiota and Systemic Diseases, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200125, China
- National Center for Stomatology; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology, Shanghai, 200011, China
| | - Yong-Li Wang
- Department of Cardiology, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200030, China
| | - Shuai Shao
- Department of Neurosurgery, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200127, China
| | - Lu-Jun Zhou
- Laboratory of Oral Microbiota and Systemic Diseases, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200125, China
- National Center for Stomatology; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology, Shanghai, 200011, China
| | - Bo-Yan Chen
- Laboratory of Oral Microbiota and Systemic Diseases, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200125, China
- National Center for Stomatology; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology, Shanghai, 200011, China
| | - Hongjian Lu
- Department of Rehabilitation, Nantong First People's Hospital, Affiliated Hospital 2 of Nantong University, Nantong, Jiangsu, 226001, China
| | - Ruo-Gu Li
- Department of Cardiology, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200030, China.
| | - Feng Jia
- Department of Neurosurgery, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200127, China.
- Department of Neurosurgery, Nantong First People's Hospital, Affiliated Hospital 2 of Nantong University, Nantong, Jiangsu, 226001, China.
| | - Sheng-Zhong Duan
- Laboratory of Oral Microbiota and Systemic Diseases, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200125, China.
- National Center for Stomatology; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology, Shanghai, 200011, China.
- Department of Cardiovascular Medicine, State Key Laboratory of Medical Genomics, Shanghai Key Laboratory of Hypertension, Shanghai Institute of Hypertension, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
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10
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Establishment of a meta-analysis based novel aortic dissection mouse model. Sci Rep 2022; 12:21434. [PMID: 36509789 PMCID: PMC9744727 DOI: 10.1038/s41598-022-25369-x] [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: 06/01/2022] [Accepted: 11/29/2022] [Indexed: 12/14/2022] Open
Abstract
Aortic dissection (AD) is a life-threatening disease and the detailed mechanism remains unclear. Thus, proper animal models are urgently required to better understand its pathogenesis. Our current study aims to establish a reliable, time and cost-effective mouse AD model. To conduct the meta-analysis, we searched PubMed for related studies up to 2021 and statistical analysis was conducted using Review Manager 5.4. For the animal experiment, 6-week-old male ApoE-/- mice were given β-aminopropionitrile (BAPN) at a concentration of 1 g/L for 3 weeks before being infused with saline, 1000 ng/kg/min or 2500 ng/kg/min angiotensin II (AngII) via osmotic mini pumps for 2 or 4 weeks. To determine the presence of AD, we performed B-ultrasonography, hematoxylin and eosin (H&E) staining, and van Gieson staining. The result of the meta-analysis showed that the use of BAPN and more than 2000 ng/kg/min AngII can increase the rate of AD formation, whereas administrating Ang II for more than 28 days has no significant effect on the rate of AD formation when compared with the less than 14 days group. In the present study, mice treated with BAPN combined with 2500 ng/kg/min AngII for 2 weeks (12/20) had a significantly higher AD formation rate than mice treated with BAPN combined with 1000 ng/kg/min Ang II for 4 weeks (2/10), and had a similar model formation rate compared with the mice treated withβ-aminopropionitrile combined with 2500 ng/kg/min AngII for 4 weeks (6/10). There were 3 mice (3/10) and 6 mice (6/20) who died in the group treated with β-aminopropionitrile combined with 2500 ng/kg/min AngII for 4 weeks and 2 weeks respectively, and only one mouse (1/10) died in the group treated with β-aminopropionitrile combined with 1000 ng/kg/min AngII for 4 weeks. In 6-week-old male ApoE-/- mice that received with 1 g/L BAPN in the drinking water for 3 weeks along with 2500 ng/kg/min AngII infusion via osmotic mini pumps for 2 weeks, the highest model formation rate and relative lower cumulative mortality were noted.
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11
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A current overview of RhoA, RhoB, and RhoC functions in vascular biology and pathology. Biochem Pharmacol 2022; 206:115321. [DOI: 10.1016/j.bcp.2022.115321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 10/17/2022] [Accepted: 10/18/2022] [Indexed: 11/24/2022]
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12
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Vascular smooth muscle RhoA counteracts abdominal aortic aneurysm formation by modulating MAP4K4 activity. Commun Biol 2022; 5:1071. [PMID: 36207400 PMCID: PMC9546906 DOI: 10.1038/s42003-022-04042-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Accepted: 09/27/2022] [Indexed: 11/08/2022] Open
Abstract
Whether a small GTPase RhoA plays a role in the pathology of abdominal aortic aneurysm (AAA) has not been determined. We show here that RhoA expression is reduced in human AAA lesions, compared with normal areas. Furthermore, incidence of AAA formation is increased in vascular smooth muscle cell (VSMC)-specific RhoA conditional knockout (cKO) mice. The contractility of the aortic rings and VSMCs from RhoA cKO mice is reduced, and expression of genes related to the VSMC contractility is attenuated by loss of RhoA. RhoA depletion activates the mitogen-activated protein (MAP) kinase signaling, including MAP4K4, in the aorta and VSMCs. Inhibition of MAP4K4 activity by DMX-5804 decreases AAA formation. Set, a binding protein to active RhoA, functions as an activator of MAP4K4 by sequestering PP2A, an inhibitor of MAP4K4, in the absence of RhoA. In conclusion, RhoA counteracts AAA formation through inhibition of MAP4K4 in cooperation with Set.
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13
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Luo BY, Zhou J, Guo D, Yang Q, Tian Q, Cai DP, Zhou RM, Xu ZZ, Wang HJ, Chen SY, Xie WB. Methamphetamine induces thoracic aortic aneurysm/dissection through C/EBPβ. Biochim Biophys Acta Mol Basis Dis 2022; 1868:166447. [PMID: 35643386 PMCID: PMC9753351 DOI: 10.1016/j.bbadis.2022.166447] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 05/02/2022] [Accepted: 05/12/2022] [Indexed: 01/25/2023]
Abstract
AIMS Thoracic aortic aneurysm/dissection (TAAD) is a life-threatening disease with diverse clinical manifestations. Although the association between methamphetamine (METH) and TAAD is frequently observed, the causal relationship between METH abuse and aortic aneurysm/dissection has not been established. This study was designed to determine if METH causes aortic aneurysm/dissection and delineate the underlying mechanism. METHODS AND RESULTS A new TAAD model was developed by exposing METH to SD rats pre-treated with lysyl oxidase inhibitor β-aminopropionitrile (BAPN). Combination of METH and BAPN caused thoracic aortic aneurysm/dissection in 60% of rats. BAPN+METH significantly increased the expression and activities of both matrix metalloproteinase MMP2 and MMP9, consistent with the severe elastin breakage and dissection. Mechanistically, METH increased CCAAT-enhancer binding protein β (C/EBPβ) expression by enhancing mothers against decapentaplegic homolog 3 (Smad3) and extracellular regulated protein kinase (ERK1/2) signaling. METH also promoted C/EBPβ binding to MMP2 and MMP9 promoters. Blocking C/EBPβ significantly attenuated METH+BAPN-induced TAAD and MMP2/MMP9 expression. Moreover, BAPN+METH promoted aortic medial smooth muscle cell (SMC) apoptosis through C/EBPβ-mediated IGFBP5/p53/PUMA signaling pathways. More importantly, the expression of C/EBPβ, MMP2/MMP9, and apoptosis-promoting proteins was increased in the aorta of human patients with thoracic aortic dissection, suggesting that the mechanisms identified in animal study could be relevant to human disease. CONCLUSIONS Our study demonstrated that METH exposure has a casual effect on TAAD. C/EBPβ mediates METH-introduced TAAD formation by causing elastin breakage, medial cell loss and degeneration. Therefore, C/EBPβ may be a potential factor for TAAD clinical diagnosis or treatment.
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Affiliation(s)
- Bao-Ying Luo
- Guangzhou Key Laboratory of Forensic Multi-Omics for Precision Identification, School of Forensic Medicine, Southern Medical University, Guangzhou 510515, PR China; Zhangzhou Health Vocational College, Zhangzhou 363000, PR China
| | - Jie Zhou
- Guangzhou Key Laboratory of Forensic Multi-Omics for Precision Identification, School of Forensic Medicine, Southern Medical University, Guangzhou 510515, PR China
| | - Dan Guo
- Department of Pharmacy, Nanfang Hospital, Southern Medical University, Guangzhou 510515, PR China
| | - Qian Yang
- Guangzhou Key Laboratory of Forensic Multi-Omics for Precision Identification, School of Forensic Medicine, Southern Medical University, Guangzhou 510515, PR China
| | - Qin Tian
- Guangzhou Key Laboratory of Forensic Multi-Omics for Precision Identification, School of Forensic Medicine, Southern Medical University, Guangzhou 510515, PR China
| | - Dun-Peng Cai
- Department of Surgery, Medical Pharmacology & Physiology, University of Missouri School of Medicine, Columbia, MO 65212, USA
| | - Rui-Mei Zhou
- Department of Surgery, Medical Pharmacology & Physiology, University of Missouri School of Medicine, Columbia, MO 65212, USA
| | - Zhen-Zhen Xu
- Guangzhou Key Laboratory of Forensic Multi-Omics for Precision Identification, School of Forensic Medicine, Southern Medical University, Guangzhou 510515, PR China
| | - Hui-Jun Wang
- Guangzhou Key Laboratory of Forensic Multi-Omics for Precision Identification, School of Forensic Medicine, Southern Medical University, Guangzhou 510515, PR China.
| | - Shi-You Chen
- Department of Surgery, Medical Pharmacology & Physiology, University of Missouri School of Medicine, Columbia, MO 65212, USA.
| | - Wei-Bing Xie
- Guangzhou Key Laboratory of Forensic Multi-Omics for Precision Identification, School of Forensic Medicine, Southern Medical University, Guangzhou 510515, PR China; NHC Key Laboratory of Drug Addiction Medicine, The First Affiliated Hospital of Kunming Medical University, Kunming, PR China.
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14
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Liu C, Zhou Y, Zhao D, Yu L, Zhou Y, Xu M, Tang L. Identification and validation of differentially expressed chromatin regulators for diagnosis of aortic dissection using integrated bioinformatics analysis and machine-learning algorithms. Front Genet 2022; 13:950613. [PMID: 36035141 PMCID: PMC9403720 DOI: 10.3389/fgene.2022.950613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Accepted: 07/20/2022] [Indexed: 11/16/2022] Open
Abstract
Background: Aortic dissection (AD) is a life-threatening disease. Chromatin regulators (CRs) are indispensable epigenetic regulators. We aimed to identify differentially expressed chromatin regulators (DECRs) for AD diagnosis. Methods: We downloaded the GSE52093 and GSE190635 datasets from the Gene Expression Omnibus database. Following the merging and processing of datasets, bioinformatics analysis was applied to select candidate DECRs for AD diagnosis: CRs exertion; DECR identification using the “Limma” package; analyses of enrichment of function and signaling pathways; construction of protein–protein interaction (PPI) networks; application of machine-learning algorithms; evaluation of receiver operating characteristic (ROC) curves. GSE98770 served as the validation dataset to filter DECRs. Moreover, we collected peripheral-blood samples to further validate expression of DECRs by real-time reverse transcription-quantitative polymerase chain reaction (RT-qPCR). Finally, a nomogram was built for clinical use. Results: A total of 841 CRs were extracted from the merged dataset. Analyses of functional enrichment of 23 DECRs identified using Limma showed that DECRs were enriched mainly in epigenetic-regulation processes. From the PPI network, 17 DECRs were selected as node DECRs. After machine-learning calculations, eight DECRs were chosen from the intersection of 13 DECRs identified using support vector machine recursive feature elimination (SVM-RFE) and the top-10 DECRs selected using random forest. DECR expression between the control group and AD group were considerably different. Moreover, the area under the ROC curve (AUC) of each DECR was >0.75, and four DECRs (tumor protein 53 (TP53), chromobox protein homolog 7 (CBX7), Janus kinase 2 (JAK2) and cyclin-dependent kinase 5 (CDK5)) were selected as candidate biomarkers after validation using the external dataset and clinical samples. Furthermore, a nomogram with robust diagnostic value was established (AUC = 0.960). Conclusion: TP53, CBX7, JAK2, and CDK5 might serve as diagnostic DECRs for AD diagnosis. These DECRs were enriched predominantly in regulating epigenetic processes.
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Affiliation(s)
- Chunjiang Liu
- Department of General Surgery, Vascular Surgery Division, Shaoxing People’s Hospital (Shaoxing Hospital of Zhejiang University), Shaoxing, China
| | - Yufei Zhou
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital and Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Di Zhao
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital and Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Luchen Yu
- Case Western Reserve University, Cleveland, OH, United States
| | - Yue Zhou
- Department of General Surgery, Vascular Surgery Division, Shaoxing People’s Hospital (Shaoxing Hospital of Zhejiang University), Shaoxing, China
| | - Miaojun Xu
- Department of General Surgery, Vascular Surgery Division, Shaoxing People’s Hospital (Shaoxing Hospital of Zhejiang University), Shaoxing, China
| | - Liming Tang
- Department of General Surgery, Vascular Surgery Division, Shaoxing People’s Hospital (Shaoxing Hospital of Zhejiang University), Shaoxing, China
- *Correspondence: Liming Tang,
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15
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Jauhiainen S, Kiema M, Hedman M, Laakkonen JP. Large Vessel Cell Heterogeneity and Plasticity: Focus in Aortic Aneurysms. Arterioscler Thromb Vasc Biol 2022; 42:811-818. [PMID: 35587695 DOI: 10.1161/atvbaha.121.316237] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Smooth muscle cells and endothelial cells have a remarkable level of plasticity in vascular pathologies. In thoracic and abdominal aortic aneurysms, smooth muscle cells have been suggested to undergo phenotypic switching and to contribute to degradation of the aortic wall structure in response to, for example, inflammatory mediators, dysregulation of growth factor signaling or oxidative stress. Recently, endothelial-to-mesenchymal transition, and a clonal expansion of degradative smooth muscle cells and immune cells, as well as mesenchymal stem-like cells have been suggested to contribute to the progression of aortic aneurysms. What are the factors driving the aortic cell phenotype changes and how vascular flow, known to affect aortic wall structure and to be altered in aortic aneurysms, could affect aortic cell remodeling? In this review, we summarize the current literature on aortic cell heterogeneity and phenotypic switching in relation to changes in vascular flow and aortic wall structure in aortic aneurysms in clinical samples with special focus on smooth muscle and endothelial cells. The differences between thoracic and abdominal aortic aneurysms are discussed.
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Affiliation(s)
- Suvi Jauhiainen
- A.I. Virtanen Institute for Molecular Sciences (S.J., M.K., J.P.L.), University of Eastern Finland, Kuopio
| | - Miika Kiema
- A.I. Virtanen Institute for Molecular Sciences (S.J., M.K., J.P.L.), University of Eastern Finland, Kuopio
| | - Marja Hedman
- Institute of Clinical Medicine (M.H.), University of Eastern Finland, Kuopio
- Department of Clinical Radiology, Kuopio University Hospital, Finland (M.H.)
- Department of Heart and Thoracic Surgery, Kuopio University Hospital, Heart Center, Kuopio, Finland (M.H.)
| | - Johanna P Laakkonen
- A.I. Virtanen Institute for Molecular Sciences (S.J., M.K., J.P.L.), University of Eastern Finland, Kuopio
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16
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Rombouts KB, van Merrienboer TAR, Ket JCF, Bogunovic N, van der Velden J, Yeung KK. The role of vascular smooth muscle cells in the development of aortic aneurysms and dissections. Eur J Clin Invest 2022; 52:e13697. [PMID: 34698377 PMCID: PMC9285394 DOI: 10.1111/eci.13697] [Citation(s) in RCA: 53] [Impact Index Per Article: 26.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 09/12/2021] [Accepted: 10/11/2021] [Indexed: 12/30/2022]
Abstract
BACKGROUND Aortic aneurysms (AA) are pathological dilations of the aorta, associated with an overall mortality rate up to 90% in case of rupture. In addition to dilation, the aortic layers can separate by a tear within the layers, defined as aortic dissections (AD). Vascular smooth muscle cells (vSMC) are the predominant cell type within the aortic wall and dysregulation of vSMC functions contributes to AA and AD development and progression. However, since the exact underlying mechanism is poorly understood, finding potential therapeutic targets for AA and AD is challenging and surgery remains the only treatment option. METHODS In this review, we summarize current knowledge about vSMC functions within the aortic wall and give an overview of how vSMC functions are altered in AA and AD pathogenesis, organized per anatomical location (abdominal or thoracic aorta). RESULTS Important functions of vSMC in healthy or diseased conditions are apoptosis, phenotypic switch, extracellular matrix regeneration and degradation, proliferation and contractility. Stressors within the aortic wall, including inflammatory cell infiltration and (epi)genetic changes, modulate vSMC functions and cause disturbance of processes within vSMC, such as changes in TGF-β signalling and regulatory RNA expression. CONCLUSION This review underscores a central role of vSMC dysfunction in abdominal and thoracic AA and AD development and progression. Further research focused on vSMC dysfunction in the aortic wall is necessary to find potential targets for noninvasive AA and AD treatment options.
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Affiliation(s)
- Karlijn B Rombouts
- Department of Surgery, Amsterdam University Medical Centers, Amsterdam Cardiovascular Sciences, Location VU Medical Center and AMC, Amsterdam, The Netherlands.,Department of Physiology, Amsterdam University Medical Centers, Amsterdam Cardiovascular Sciences, Location VU Medical Center, Amsterdam, The Netherlands
| | - Tara A R van Merrienboer
- Department of Surgery, Amsterdam University Medical Centers, Amsterdam Cardiovascular Sciences, Location VU Medical Center and AMC, Amsterdam, The Netherlands.,Department of Physiology, Amsterdam University Medical Centers, Amsterdam Cardiovascular Sciences, Location VU Medical Center, Amsterdam, The Netherlands
| | | | - Natalija Bogunovic
- Department of Surgery, Amsterdam University Medical Centers, Amsterdam Cardiovascular Sciences, Location VU Medical Center and AMC, Amsterdam, The Netherlands.,Department of Physiology, Amsterdam University Medical Centers, Amsterdam Cardiovascular Sciences, Location VU Medical Center, Amsterdam, The Netherlands.,Laboratory of Experimental Cardiology, Department of Cardiology, Leiden University Medical Center, Leiden, The Netherlands
| | - Jolanda van der Velden
- Department of Physiology, Amsterdam University Medical Centers, Amsterdam Cardiovascular Sciences, Location VU Medical Center, Amsterdam, The Netherlands
| | - Kak Khee Yeung
- Department of Surgery, Amsterdam University Medical Centers, Amsterdam Cardiovascular Sciences, Location VU Medical Center and AMC, Amsterdam, The Netherlands.,Department of Physiology, Amsterdam University Medical Centers, Amsterdam Cardiovascular Sciences, Location VU Medical Center, Amsterdam, The Netherlands
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17
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Pan L, Bai P, Weng X, Liu J, Chen Y, Chen S, Ma X, Hu K, Sun A, Ge J. Legumain Is an Endogenous Modulator of Integrin αvβ3 Triggering Vascular Degeneration, Dissection, and Rupture. Circulation 2022; 145:659-674. [PMID: 35100526 DOI: 10.1161/circulationaha.121.056640] [Citation(s) in RCA: 53] [Impact Index Per Article: 26.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
BACKGROUND The development of thoracic aortic dissection (TAD) is closely related to extracellular matrix degradation and vascular smooth muscle cell (VSMC) transformation from contractile to synthetic type. LGMN (legumain) degrades extracellular matrix components directly or by activating downstream signals. The role of LGMN in VSMC differentiation and the occurrence of TAD remains elusive. METHODS Microarray datasets concerning vascular dissection or aneurysm were downloaded from the Gene Expression Omnibus database to screen differentially expressed genes. Four-week-old male Lgmn knockout mice (Lgmn-/-), macrophage-specific Lgmn knockout mice (LgmnF/F;LysMCre), and RR-11a-treated C57BL/6 mice were given BAPN (β-aminopropionitrile monofumarate; 1 g/kg/d) in drinking water for 4 weeks for TAD modeling. RNA sequencing analysis was performed to recapitulate transcriptome profile changes. Cell interaction was examined in macrophage and VSMC coculture system. The reciprocity of macrophage-derived LGMN with integrin αvβ3 in VSMCs was tested by coimmunoprecipitation assay and colocalization analyses. RESULTS Microarray datasets from the Gene Expression Omnibus database indicated upregulated LGMN in aorta from patients with TAD and mice with angiotensin II-induced AAA. Elevated LGMN was evidenced in aorta and sera from patients with TAD and mice with BAPN-induced TAD. BAPN-induced TAD progression was significantly ameliorated in Lgmn-deficient or inhibited mice. Macrophage-specific deletion of Lgmn alleviated BAPN-induced extracellular matrix degradation. Unbiased profiler polymerase chain reaction array and Gene Ontology analysis displayed that LGMN regulated VSMC phenotype transformation. Macrophage-specific deletion of Lgmn ameliorated VSMC phenotypic switch in BAPN-treated mice. Macrophage-derived LGMN inhibited VSMC differentiation in vitro as assessed by macrophages and the VSMC coculture system. Macrophage-derived LGMN bound to integrin αvβ3 in VSMCs and blocked integrin αvβ3, thereby attenuating Rho GTPase activation, downregulating VSMC differentiation markers and eventually exacerbating TAD development. ROCK (Rho kinase) inhibitor Y-27632 reversed the protective role of LGMN depletion in vascular dissection. CONCLUSIONS LGMN signaling may be a novel target for the prevention and treatment of TAD.
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Affiliation(s)
- Lihong Pan
- Institutes of Biomedical Sciences, Fudan University, Shanghai, China (L.P., S.C., A.S., J.G.).,Key Laboratory of Viral Heart Diseases, National Health Commission, Shanghai, China (L.P., P.B., X.W., J.L., S.C., X.M., A.S., J.G.).,Key Laboratory of Viral Heart Diseases, Chinese Academy of Medical Sciences, Shanghai, China (L.P., P.B., X.W., J.L., S.C., X.M., A.S., J.G.)
| | - Peiyuan Bai
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, China (P.B., X.W., J.L., X.M., K.H., A.S., J.G.).,Key Laboratory of Viral Heart Diseases, National Health Commission, Shanghai, China (L.P., P.B., X.W., J.L., S.C., X.M., A.S., J.G.).,Key Laboratory of Viral Heart Diseases, Chinese Academy of Medical Sciences, Shanghai, China (L.P., P.B., X.W., J.L., S.C., X.M., A.S., J.G.)
| | - Xinyu Weng
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, China (P.B., X.W., J.L., X.M., K.H., A.S., J.G.).,Key Laboratory of Viral Heart Diseases, National Health Commission, Shanghai, China (L.P., P.B., X.W., J.L., S.C., X.M., A.S., J.G.).,Key Laboratory of Viral Heart Diseases, Chinese Academy of Medical Sciences, Shanghai, China (L.P., P.B., X.W., J.L., S.C., X.M., A.S., J.G.)
| | - Jin Liu
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, China (P.B., X.W., J.L., X.M., K.H., A.S., J.G.).,Key Laboratory of Viral Heart Diseases, National Health Commission, Shanghai, China (L.P., P.B., X.W., J.L., S.C., X.M., A.S., J.G.).,Key Laboratory of Viral Heart Diseases, Chinese Academy of Medical Sciences, Shanghai, China (L.P., P.B., X.W., J.L., S.C., X.M., A.S., J.G.)
| | - Yingjie Chen
- Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson (Y.C.)
| | - Siqin Chen
- Institutes of Biomedical Sciences, Fudan University, Shanghai, China (L.P., S.C., A.S., J.G.).,Key Laboratory of Viral Heart Diseases, National Health Commission, Shanghai, China (L.P., P.B., X.W., J.L., S.C., X.M., A.S., J.G.).,Key Laboratory of Viral Heart Diseases, Chinese Academy of Medical Sciences, Shanghai, China (L.P., P.B., X.W., J.L., S.C., X.M., A.S., J.G.)
| | - Xiurui Ma
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, China (P.B., X.W., J.L., X.M., K.H., A.S., J.G.).,Key Laboratory of Viral Heart Diseases, National Health Commission, Shanghai, China (L.P., P.B., X.W., J.L., S.C., X.M., A.S., J.G.).,Key Laboratory of Viral Heart Diseases, Chinese Academy of Medical Sciences, Shanghai, China (L.P., P.B., X.W., J.L., S.C., X.M., A.S., J.G.)
| | - Kai Hu
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, China (P.B., X.W., J.L., X.M., K.H., A.S., J.G.)
| | - Aijun Sun
- Institutes of Biomedical Sciences, Fudan University, Shanghai, China (L.P., S.C., A.S., J.G.).,Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, China (P.B., X.W., J.L., X.M., K.H., A.S., J.G.).,Key Laboratory of Viral Heart Diseases, National Health Commission, Shanghai, China (L.P., P.B., X.W., J.L., S.C., X.M., A.S., J.G.).,Key Laboratory of Viral Heart Diseases, Chinese Academy of Medical Sciences, Shanghai, China (L.P., P.B., X.W., J.L., S.C., X.M., A.S., J.G.)
| | - Junbo Ge
- Institutes of Biomedical Sciences, Fudan University, Shanghai, China (L.P., S.C., A.S., J.G.).,Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, China (P.B., X.W., J.L., X.M., K.H., A.S., J.G.).,Key Laboratory of Viral Heart Diseases, National Health Commission, Shanghai, China (L.P., P.B., X.W., J.L., S.C., X.M., A.S., J.G.).,Key Laboratory of Viral Heart Diseases, Chinese Academy of Medical Sciences, Shanghai, China (L.P., P.B., X.W., J.L., S.C., X.M., A.S., J.G.)
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18
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Xu Z, Hu Z, Xu H, Zhang L, Li L, Wang Y, Zhu Y, Yang L, Hu D. Liquiritigenin alleviates doxorubicin-induced chronic heart failure via promoting ARHGAP18 and suppressing RhoA/ROCK1 pathway. Exp Cell Res 2022; 411:113008. [PMID: 34990617 DOI: 10.1016/j.yexcr.2022.113008] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 12/30/2021] [Accepted: 01/01/2022] [Indexed: 12/01/2022]
Abstract
Chronic heart failure (CHF) is one of the most common chronic diseases with increasing incidence and mortality. Liquiritigenin (LQG) is shown to protect mice from cardiotoxicity. However, its underlying mechanism remains unclear. Our study aimed to reveal the role of ARHGAP18 in LQG-mediated cardioprotective effects in CHF. In the current study, CHF cell model and rat model were established by the application of doxorubicin (DOX). The reactive oxygen species (ROS) level and cell apoptosis were determined by flow cytometry. The cardiac function of rats was evaluated by measuring left ventricular systolic pressure, left ventricular end diastolic pressure, and serum level of lactate dehydrogenase and brain natriuretic peptide. The expression of active RhoA was elevated and that of ARHGAP18 was decreased in DOX-induced CHF cell model. ARHGAP18 could reduce DOX-induced RhoA activation, ROS elevation, and cell apoptosis. Meanwhile, the knockdown of ARHGAP18 could promote the activation of RhoA, the level of ROS, and the rate of cell apoptosis, which could be reversed by the application of RhoA inhibitor. LQG promoted the expression of ARHGAP18 and exerted similar effects of ARHGAP18 in CHF cell model. The application of LQG could also reverse the effects mediated by ARHGAP18 knockdown. Moreover, LQG significantly improved cardiac function and ameliorated DOX-induced cardiotoxicity of CHF rats. In conclusion, LQG could alleviate DOX-induced CHF via promoting ARHGAP18 and suppressing RhoA/ROCK1 pathway. LQG was a potential agent for CHF treatment.
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Affiliation(s)
- Zhibing Xu
- Department of Emergency, Seventh People's Hospital of Shanghai University of Traditional Chinese Medicine, China
| | - Zongde Hu
- Department of Traditional Chinese Medicine, Shanghai Pudong New Area Hospital of Traditional Chinese Medicine, China
| | - Hanchen Xu
- Institute of Digestive Diseases, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, China
| | - Lifen Zhang
- Department of Emergency, Seventh People's Hospital of Shanghai University of Traditional Chinese Medicine, China
| | - Liang Li
- Department of Emergency, Seventh People's Hospital of Shanghai University of Traditional Chinese Medicine, China
| | - Yi Wang
- Department of Emergency, Seventh People's Hospital of Shanghai University of Traditional Chinese Medicine, China
| | - Yuanqing Zhu
- Department of Emergency, Seventh People's Hospital of Shanghai University of Traditional Chinese Medicine, China
| | - Limeng Yang
- Department of Traditional Chinese Medicine, Shanghai Pudong New Area Hospital of Traditional Chinese Medicine, China.
| | - Dan Hu
- Department of Traditional Chinese Medicine, Shanghai Pudong New Area Hospital of Traditional Chinese Medicine, China.
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19
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Lu H, Du W, Ren L, Hamblin MH, Becker RC, Chen YE, Fan Y. Vascular Smooth Muscle Cells in Aortic Aneurysm: From Genetics to Mechanisms. J Am Heart Assoc 2021; 10:e023601. [PMID: 34796717 PMCID: PMC9075263 DOI: 10.1161/jaha.121.023601] [Citation(s) in RCA: 56] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Aortic aneurysm, including thoracic aortic aneurysm and abdominal aortic aneurysm, is the second most prevalent aortic disease following atherosclerosis, representing the ninth-leading cause of death globally. Open surgery and endovascular procedures are the major treatments for aortic aneurysm. Typically, thoracic aortic aneurysm has a more robust genetic background than abdominal aortic aneurysm. Abdominal aortic aneurysm shares many features with thoracic aortic aneurysm, including loss of vascular smooth muscle cells (VSMCs), extracellular matrix degradation and inflammation. Although there are limitations to perfectly recapitulating all features of human aortic aneurysm, experimental models provide valuable tools to understand the molecular mechanisms and test novel therapies before human clinical trials. Among the cell types involved in aortic aneurysm development, VSMC dysfunction correlates with loss of aortic wall structural integrity. Here, we discuss the role of VSMCs in aortic aneurysm development. The loss of VSMCs, VSMC phenotypic switching, secretion of inflammatory cytokines, increased matrix metalloproteinase activity, elevated reactive oxygen species, defective autophagy, and increased senescence contribute to aortic aneurysm development. Further studies on aortic aneurysm pathogenesis and elucidation of the underlying signaling pathways are necessary to identify more novel targets for treating this prevalent and clinical impactful disease.
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Affiliation(s)
- Haocheng Lu
- Department of Internal Medicine Cardiovascular Center University of Michigan Medical Center Ann Arbor MI
| | - Wa Du
- Department of Cancer Biology University of Cincinnati College of Medicine Cincinnati OH
| | - Lu Ren
- Department of Cancer Biology University of Cincinnati College of Medicine Cincinnati OH
| | - Milton H Hamblin
- Department of Pharmacology Tulane University School of Medicine New Orleans LA
| | - Richard C Becker
- Division of Cardiovascular Health and Disease Department of Internal Medicine University of Cincinnati College of Medicine Cincinnati OH
| | - Y Eugene Chen
- Department of Internal Medicine Cardiovascular Center University of Michigan Medical Center Ann Arbor MI
| | - Yanbo Fan
- Department of Cancer Biology University of Cincinnati College of Medicine Cincinnati OH.,Division of Cardiovascular Health and Disease Department of Internal Medicine University of Cincinnati College of Medicine Cincinnati OH
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20
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Zhou C, Lin Z, Cao H, Chen Y, Li J, Zhuang X, Ma D, Ji L, Li W, Xu S, Pan B, Zheng L. Anxa1 in smooth muscle cells protects against acute aortic dissection. Cardiovasc Res 2021; 118:1564-1582. [PMID: 33757117 DOI: 10.1093/cvr/cvab109] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Accepted: 03/21/2021] [Indexed: 02/06/2023] Open
Abstract
AIMS Acute aortic dissection (AAD) is a life-threatening disease with high morbidity and mortality. Previous studies have showed that vascular smooth muscle cell (VSMC) phenotype switching modulates vascular function and AAD progression. However, whether an endogenous signaling system that protects AAD progression exists, remains unknown. Our aim is to investigate the role of Anxa1 in VSMC phenotype switching and the pathogenesis of AAD. METHODS AND RESULTS We first assessed Anxa1 expression levels by immunohistochemical staining in control aorta and AAD tissue from mice. A strong increase of Anxa1 expression was seen in the mouse AAD tissues. In line with these findings, micro-CT scan results indicated that Anxa1 plays a role in the development of AAD in our murine model, with systemic deficiency of Anxa1 markedly progressing AAD. Conversely, administration of Anxa1 mimetic peptide, Ac2-26, rescued the AAD phenotype in Anxa1-/- mice. Transcriptomic studies revealed a novel role for Anxa1 in VSMC phenotype switching, with Anxa1 deficiency triggering the synthetic phenotype of VSMCs via down-regulation of the JunB/MYL9 pathway. The resultant VSMC synthetic phenotype rendered elevated inflammation and enhanced matrix metalloproteinases (MMPs) production, leading to augmented elastin degradation. VSMC-restricted deficiency of Anxa1 in mice phenocopied VSMC phenotype switching and the consequent exacerbation of AAD. Finally, our studies in human AAD aortic specimens recapitulated key findings in murine AAD, specifically that the decrease of Anxa1 is associated with VSMC phenotype switch, heightened inflammation, and enhanced MMP production in human aortas. CONCLUSIONS Our findings demonstrated that Anxa1 is a novel endogenous defender that prevents acute aortic dissection by inhibiting vascular smooth muscle cell phenotype switching, suggesting that Anxa1 signaling may be a potential target for AAD pharmacological therapy. TRANSLATIONAL PERSPECTIVE Our studies herein may lead to a paradigm shift for pharmacologic therapy towards acute aortic dissection. Through careful examination of the pathological changes that occur during AAD onset in experimental animal models, we demonstrated that VSMC phenotype switching plays a critical role in the development of AAD. Inhibition of VSMC phenotype switching and its attendant impacts on aortic function may be a viable approach for future treatment. Toward that end, our studies highlighted the protective benefit of Anxa1 and its mimetic peptide Ac2-26 in AAD through prevention of the switching of VSMC to a synthetic phenotype.
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Affiliation(s)
- Changping Zhou
- The Institute of Cardiovascular Sciences and Institute of Systems Biomedicine, School of Basic Medical Sciences, Peking University Health Science Center, Key Laboratory of Molecular Cardiovascular Science of Ministry of Education, Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides of Ministry of Health, Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing, 100191, China
| | - Zhiyong Lin
- Cardiology Division, Emory University School of Medicine, Atlanta, GA, 30322, USA
| | - Huanhuan Cao
- The Institute of Cardiovascular Sciences and Institute of Systems Biomedicine, School of Basic Medical Sciences, Peking University Health Science Center, Key Laboratory of Molecular Cardiovascular Science of Ministry of Education, Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides of Ministry of Health, Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing, 100191, China
| | - Yue Chen
- The Institute of Cardiovascular Sciences and Institute of Systems Biomedicine, School of Basic Medical Sciences, Peking University Health Science Center, Key Laboratory of Molecular Cardiovascular Science of Ministry of Education, Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides of Ministry of Health, Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing, 100191, China
| | - Jingxuan Li
- The Institute of Cardiovascular Sciences and Institute of Systems Biomedicine, School of Basic Medical Sciences, Peking University Health Science Center, Key Laboratory of Molecular Cardiovascular Science of Ministry of Education, Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides of Ministry of Health, Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing, 100191, China
| | - Xiaofeng Zhuang
- FuWai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100037, China
| | - Dong Ma
- School of Public Health, North China University of Science and Technology, 21 Bohai Avenue, Caofeidian New City, Tangshan 063210, Hebei, China; Department of Biochemistry and Molecular Biology, Hebei Medical University, China
| | - Liang Ji
- The Institute of Cardiovascular Sciences and Institute of Systems Biomedicine, School of Basic Medical Sciences, Peking University Health Science Center, Key Laboratory of Molecular Cardiovascular Science of Ministry of Education, Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides of Ministry of Health, Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing, 100191, China
| | - Wei Li
- Peking University People's Hospital, Beijing, China
| | - Suowen Xu
- Department of Endocrinology and Metabolism, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230001, China
| | - Bing Pan
- The Institute of Cardiovascular Sciences and Institute of Systems Biomedicine, School of Basic Medical Sciences, Peking University Health Science Center, Key Laboratory of Molecular Cardiovascular Science of Ministry of Education, Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides of Ministry of Health, Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing, 100191, China
| | - Lemin Zheng
- The Institute of Cardiovascular Sciences and Institute of Systems Biomedicine, School of Basic Medical Sciences, Peking University Health Science Center, Key Laboratory of Molecular Cardiovascular Science of Ministry of Education, Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides of Ministry of Health, Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing, 100191, China.,Beijing Tiantan Hospital, The Capital Medical University; China National Clinical Research Center for Neurological Diseases; Advanced Innovation Center for Human Brain Protection, Beijing, 100050, China
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21
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ET AR silencing ameliorated neurovascular injury after SAH in rats through ERK/KLF4-mediated phenotypic transformation of smooth muscle cells. Exp Neurol 2021; 337:113596. [PMID: 33417892 DOI: 10.1016/j.expneurol.2021.113596] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 12/16/2020] [Accepted: 12/30/2020] [Indexed: 12/29/2022]
Abstract
Subarachnoid haemorrhage (SAH) is a devastating cerebrovascular disease which has a high morbidity and mortality. The phenotypic transformation of smooth muscle cells (SMCs) lead to neurovascular injury after SAH. However, the underlying mechanism remains unclear. In the present study, we aimed to investigate the potential role of ET-1/ETAR on the phenotypic transformation of SMCs after SAH. The models of SAH were established in vivo and vitro. We observed ET-1 secretion by endothelial cells was increased, and the phenotypic transformation of SMCs was aggravated after SAH. Knocking down ETAR inhibited the phenotypic transformation of SMCs, decreased the migration ability of SMCs in vitro. Moreover, Knocking down ETAR ameliorated cerebral ischaemia and alleviated dysfunction of neurological function in vivo. In addition, Exogenous ET-1 increased the migration ability of SMCs and aggravated the phenotypic transformation of SMCs in vitro, which were partly reversed by the antagonist of Erk1/2 - SCH772984. Taken together, our results demonstrated that endothelial ET-1 aggravated the phenotypic transformation of SMCs after SAH. Knocking down ETAR inhibited the phenotypic transformation of SMCs through ERK/KLF4 thus ameliorating neurovascular injury after SAH. We also revealed that ET-1/ETAR is a potential therapeutic target after SAH.
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22
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Bruijn LE, van den Akker BEWM, van Rhijn CM, Hamming JF, Lindeman JHN. Extreme Diversity of the Human Vascular Mesenchymal Cell Landscape. J Am Heart Assoc 2020; 9:e017094. [PMID: 33190596 PMCID: PMC7763765 DOI: 10.1161/jaha.120.017094] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Accepted: 10/05/2020] [Indexed: 12/17/2022]
Abstract
Background Human mesenchymal cells are culprit factors in vascular (patho)physiology and are hallmarked by phenotypic and functional heterogeneity. At present, they are subdivided by classic umbrella terms, such as "fibroblasts," "myofibroblasts," "smooth muscle cells," "fibrocytes," "mesangial cells," and "pericytes." However, a discriminative marker-based subclassification has to date not been established. Methods and Results As a first effort toward a classification scheme, a systematic literature search was performed to identify the most commonly used phenotypical and functional protein markers for characterizing and classifying vascular mesenchymal cell subpopulation(s). We next applied immunohistochemistry and immunofluorescence to inventory the expression pattern of identified markers on human aorta specimens representing early, intermediate, and end stages of human atherosclerotic disease. Included markers comprise markers for mesenchymal lineage (vimentin, FSP-1 [fibroblast-specific protein-1]/S100A4, cluster of differentiation (CD) 90/thymocyte differentiation antigen 1, and FAP [fibroblast activation protein]), contractile/non-contractile phenotype (α-smooth muscle actin, smooth muscle myosin heavy chain, and nonmuscle myosin heavy chain), and auxiliary contractile markers (h1-Calponin, h-Caldesmon, Desmin, SM22α [smooth muscle protein 22α], non-muscle myosin heavy chain, smooth muscle myosin heavy chain, Smoothelin-B, α-Tropomyosin, and Telokin) or adhesion proteins (Paxillin and Vinculin). Vimentin classified as the most inclusive lineage marker. Subset markers did not separate along classic lines of smooth muscle cell, myofibroblast, or fibroblast, but showed clear temporal and spatial diversity. Strong indications were found for presence of stem cells/Endothelial-to-Mesenchymal cell Transition and fibrocytes in specific aspects of the human atherosclerotic process. Conclusions This systematic evaluation shows a highly diverse and dynamic landscape for the human vascular mesenchymal cell population that is not captured by the classic nomenclature. Our observations stress the need for a consensus multiparameter subclass designation along the lines of the cluster of differentiation classification for leucocytes.
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Affiliation(s)
- Laura E. Bruijn
- Division of Vascular SurgeryDepartment of SurgeryLeiden University Medical CenterLeidenthe Netherlands
| | | | - Connie M. van Rhijn
- Division of Vascular SurgeryDepartment of SurgeryLeiden University Medical CenterLeidenthe Netherlands
| | - Jaap F. Hamming
- Division of Vascular SurgeryDepartment of SurgeryLeiden University Medical CenterLeidenthe Netherlands
| | - Jan H. N. Lindeman
- Division of Vascular SurgeryDepartment of SurgeryLeiden University Medical CenterLeidenthe Netherlands
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23
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Li G, Wang M, Caulk AW, Cilfone NA, Gujja S, Qin L, Chen PY, Chen Z, Yousef S, Jiao Y, He C, Jiang B, Korneva A, Bersi MR, Wang G, Liu X, Mehta S, Geirsson A, Gulcher JR, Chittenden TW, Simons M, Humphrey JD, Tellides G. Chronic mTOR activation induces a degradative smooth muscle cell phenotype. J Clin Invest 2020; 130:1233-1251. [PMID: 32039915 DOI: 10.1172/jci131048] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Accepted: 12/03/2019] [Indexed: 01/01/2023] Open
Abstract
Smooth muscle cell (SMC) proliferation has been thought to limit the progression of thoracic aortic aneurysm and dissection (TAAD) because loss of medial cells associates with advanced disease. We investigated effects of SMC proliferation in the aortic media by conditional disruption of Tsc1, which hyperactivates mTOR complex 1. Consequent SMC hyperplasia led to progressive medial degeneration and TAAD. In addition to diminished contractile and synthetic functions, fate-mapped SMCs displayed increased proteolysis, endocytosis, phagocytosis, and lysosomal clearance of extracellular matrix and apoptotic cells. SMCs acquired a limited repertoire of macrophage markers and functions via biogenesis of degradative organelles through an mTOR/β-catenin/MITF-dependent pathway, but were distinguishable from conventional macrophages by an absence of hematopoietic lineage markers and certain immune effectors even in the context of hyperlipidemia. Similar mTOR activation and induction of a degradative SMC phenotype in a model of mild TAAD due to Fbn1 mutation greatly worsened disease with near-uniform lethality. The finding of increased lysosomal markers in medial SMCs from clinical TAAD specimens with hyperplasia and matrix degradation further supports the concept that proliferation of degradative SMCs within the media causes aortic disease, thus identifying mTOR-dependent phenotypic modulation as a therapeutic target for combating TAAD.
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Affiliation(s)
- Guangxin Li
- Department of Surgery, Yale School of Medicine, New Haven, Connecticut, USA.,Department of Breast and Thyroid Surgery, Peking University Shenzhen Hospital, Shenzhen, Guangdong Province, China
| | - Mo Wang
- Department of Surgery, Yale School of Medicine, New Haven, Connecticut, USA
| | - Alexander W Caulk
- Department of Biomedical Engineering, Yale School of Engineering and Applied Science, New Haven, Connecticut, USA
| | - Nicholas A Cilfone
- Computational Statistics and Bioinformatics Group, Advanced Artificial Intelligence Research Laboratory, WuXi NextCODE, Cambridge, Massachusetts, USA
| | - Sharvari Gujja
- Computational Statistics and Bioinformatics Group, Advanced Artificial Intelligence Research Laboratory, WuXi NextCODE, Cambridge, Massachusetts, USA
| | - Lingfeng Qin
- Department of Surgery, Yale School of Medicine, New Haven, Connecticut, USA
| | | | - Zehua Chen
- Computational Statistics and Bioinformatics Group, Advanced Artificial Intelligence Research Laboratory, WuXi NextCODE, Cambridge, Massachusetts, USA
| | - Sameh Yousef
- Department of Surgery, Yale School of Medicine, New Haven, Connecticut, USA
| | - Yang Jiao
- Department of Surgery, Yale School of Medicine, New Haven, Connecticut, USA
| | - Changshun He
- Department of Surgery, Yale School of Medicine, New Haven, Connecticut, USA
| | - Bo Jiang
- Department of Surgery, Yale School of Medicine, New Haven, Connecticut, USA
| | - Arina Korneva
- Department of Biomedical Engineering, Yale School of Engineering and Applied Science, New Haven, Connecticut, USA
| | - Matthew R Bersi
- Department of Biomedical Engineering, Yale School of Engineering and Applied Science, New Haven, Connecticut, USA
| | | | - Xinran Liu
- Cell Biology, Yale School of Medicine, New Haven, Connecticut, USA.,Center for Cellular and Molecular Imaging, EM Core Facility, Yale School of Medicine, New Haven, Connecticut, USA
| | | | - Arnar Geirsson
- Department of Surgery, Yale School of Medicine, New Haven, Connecticut, USA.,Program in Vascular Biology and Therapeutics, Yale School of Medicine, New Haven, Connecticut, USA
| | - Jeffrey R Gulcher
- Computational Statistics and Bioinformatics Group, Advanced Artificial Intelligence Research Laboratory, WuXi NextCODE, Cambridge, Massachusetts, USA
| | - Thomas W Chittenden
- Computational Statistics and Bioinformatics Group, Advanced Artificial Intelligence Research Laboratory, WuXi NextCODE, Cambridge, Massachusetts, USA
| | - Michael Simons
- Internal Medicine.,Program in Vascular Biology and Therapeutics, Yale School of Medicine, New Haven, Connecticut, USA
| | - Jay D Humphrey
- Department of Biomedical Engineering, Yale School of Engineering and Applied Science, New Haven, Connecticut, USA.,Program in Vascular Biology and Therapeutics, Yale School of Medicine, New Haven, Connecticut, USA
| | - George Tellides
- Department of Surgery, Yale School of Medicine, New Haven, Connecticut, USA.,Program in Vascular Biology and Therapeutics, Yale School of Medicine, New Haven, Connecticut, USA.,Veterans Affairs Connecticut Healthcare System, West Haven, Connecticut, USA
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Chen S, Chen H, Zhong Y, Ge Y, Li C, Qiao Z, Zhu J. Insulin-like growth factor-binding protein 3 inhibits angiotensin II-induced aortic smooth muscle cell phenotypic switch and matrix metalloproteinase expression. Exp Physiol 2020; 105:1827-1839. [PMID: 32936966 DOI: 10.1113/ep088927] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Accepted: 09/15/2020] [Indexed: 12/28/2022]
Abstract
NEW FINDINGS What is the central question of this study? Insulin-like growth factor 1 and its major binding protein insulin-like growth factor binding protein 3 (IGFBP3) are involved in collagen deregulation in several cardiovascular diseases: what is the role of IGFBP3 in thoracic aortic dissection and does it regulate aortic smooth muscle cells' phenotypic switch? What is the main finding and its importance? IGFBP3 inhibits aortic smooth muscle cells' phenotypic switch from a contractile to a synthetic phenotype, decreases matrix metalloproteinase 9 activation and suppresses elastin degradation. These findings provide a better understanding of the pathogenesis of thoracic aortic dissection. ABSTRACT Thoracic aortic dissection (TAD) is characterized by aortic media degeneration and is a highly lethal disease. An aortic smooth muscle cell (AoSMC) phenotypic switch is considered a key pathophysiological change in TAD. Insulin-like growth factor binding protein 3 (IGFBP3) was found to be downregulated in aortic tissues of TAD patients. The present work aimed to study the function of IGFBP3 in AoSMCs' phenotypic switch and matrix metalloproteinase (MMP) expression. We established a mouse model of TAD by angiotensin (Ang) II infusion to β-aminopropionitrile-administrated mice, and found decreased IGFBP3 expression accompanied by aortic dilatation and elastin degradation in vivo. Further, mouse (m)AoSMCs were isolated from mouse thoracic aorta and treated with Ang II. Ang II induced downregulation of IGFBP3 in vitro. To further study the function of IGFBP3, primary mAoSMCs were infected with adenovirus expressing IGFBP3 followed by Ang II induction. Enforced upregulation of IGFBP3 decreased MMP9 expression and activation as well as increasing tissue inhibitor of metalloproteinase (TIMP) 1 expression in Ang II-induced mAoSMCs. No difference was observed in MMP2 and TIMP3 expression. IGFBP3 suppressed subsequent Ang II-induced elastin degradation in vitro. IGFBP3 inhibited Ang II-induced mAoSMCs' phenotypic switch as evidenced by increased smooth muscle actin α-2 (ACTA2) and myosin heavy chain 11 (MYH11) expression and decreased secreted phosphoprotein 1 (SPP1) and vimentin expression. Taken together, the present study demonstrates the role of IGFBP3 in preserving AoSMCs' contractile state and reducing MMP9 activation and thus promoting elastic fibre synthesis, which provides a better understanding of the pathogenesis of TAD.
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Affiliation(s)
- Suwei Chen
- Department of Cardiovascular Surgery, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Hong Chen
- Department of Cardiovascular Surgery, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Yongliang Zhong
- Department of Cardiovascular Surgery, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Yipeng Ge
- Department of Cardiovascular Surgery, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Chengnan Li
- Department of Cardiovascular Surgery, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Zhiyu Qiao
- Department of Cardiovascular Surgery, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Junming Zhu
- Department of Cardiovascular Surgery, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
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25
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Shin SJ, Hang HT, Thang BQ, Shimoda T, Sakamoto H, Osaka M, Hiramatsu Y, Yamashiro Y, Yanagisawa H. Role of PAR1-Egr1 in the Initiation of Thoracic Aortic Aneurysm in Fbln4-Deficient Mice. Arterioscler Thromb Vasc Biol 2020; 40:1905-1917. [DOI: 10.1161/atvbaha.120.314560] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Objective:
Remodeling of the extracellular matrix plays a vital role in cardiovascular diseases. Using a mouse model of postnatal ascending aortic aneurysms (termed
Fbln4
SMKO
), we have reported that abnormal mechanosensing led to aneurysm formation in
Fbln4
SMKO
with an upregulation of the mechanosensitive transcription factor, Egr1 (Early growth response 1). However, the role of Egr1 and its upstream regulator(s) in the initiation of aneurysm development and their relationship to an aneurysmal microenvironment are unknown.
Approach and Results:
To investigate the contribution of Egr1 in the aneurysm development, we deleted
Egr1
in
Fbln4
SMKO
mice and generated double knockout mice (
DKO
,
Fbln4
SMKO
;
Egr1
−/−
). Aneurysms were prevented in
DKO
mice (42.8%) and
Fbln4
SMKO
;
Egr1
+/−
mice (26%). Ingenuity Pathway Analysis identified PAR1 (protease-activated receptor 1) as a potential Egr1 upstream gene. Protein and transcript levels of PAR1 were highly increased in
Fbln4
SMKO
aortas at postnatal day 1 before aneurysm formed, together with active thrombin and MMP (matrix metalloproteinase)-9, both of which serve as a PAR1 activator. Concordantly, protein levels of PAR1, Egr1, and thrombin were significantly increased in human thoracic aortic aneurysms. In vitro cyclic stretch assays (1.0 Hz, 20% strain, 8 hours) using mouse primary vascular smooth muscle cells induced marked expression of PAR1 and secretion of prothrombin in response to mechanical stretch. Thrombin was sufficient to induce Egr1 expression in a PAR1-dependent manner.
Conclusions:
We propose that thrombin, MMP-9, and mechanical stimuli in the
Fbln4
SMKO
aorta activate PAR1, leading to the upregulation of Egr1 and initiation of ascending aortic aneurysms.
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Affiliation(s)
- Seung Jae Shin
- From the Life Science Center for Survival Dynamics, Tsukuba Advanced Research Alliance (TARA) (S.J.S., H.T.H., T.S., Y.Y., H.Y.), University of Tsukuba, Ibaraki, Japan
- Graduate School of Life and Environmental Sciences (S.J.S.), University of Tsukuba, Ibaraki, Japan
| | - Huynh Thuy Hang
- From the Life Science Center for Survival Dynamics, Tsukuba Advanced Research Alliance (TARA) (S.J.S., H.T.H., T.S., Y.Y., H.Y.), University of Tsukuba, Ibaraki, Japan
- Graduate School of Comprehensive Human Sciences (H.T.H.), University of Tsukuba, Ibaraki, Japan
| | - Bui Quoc Thang
- Department of Cardiovascular Surgery (B.Q.T., H.S., M.O., Y.H.), University of Tsukuba, Ibaraki, Japan
| | - Tomonari Shimoda
- From the Life Science Center for Survival Dynamics, Tsukuba Advanced Research Alliance (TARA) (S.J.S., H.T.H., T.S., Y.Y., H.Y.), University of Tsukuba, Ibaraki, Japan
- School of Medicine (T.S.), University of Tsukuba, Ibaraki, Japan
| | - Hiroaki Sakamoto
- Department of Cardiovascular Surgery (B.Q.T., H.S., M.O., Y.H.), University of Tsukuba, Ibaraki, Japan
| | - Motoo Osaka
- Department of Cardiovascular Surgery (B.Q.T., H.S., M.O., Y.H.), University of Tsukuba, Ibaraki, Japan
| | - Yuji Hiramatsu
- Department of Cardiovascular Surgery (B.Q.T., H.S., M.O., Y.H.), University of Tsukuba, Ibaraki, Japan
| | - Yoshito Yamashiro
- From the Life Science Center for Survival Dynamics, Tsukuba Advanced Research Alliance (TARA) (S.J.S., H.T.H., T.S., Y.Y., H.Y.), University of Tsukuba, Ibaraki, Japan
| | - Hiromi Yanagisawa
- From the Life Science Center for Survival Dynamics, Tsukuba Advanced Research Alliance (TARA) (S.J.S., H.T.H., T.S., Y.Y., H.Y.), University of Tsukuba, Ibaraki, Japan
- Division of Biomedical Science, Faculty of Medicine (H.Y.), University of Tsukuba, Ibaraki, Japan
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Abstract
Vascular smooth muscle cells (VSMCs) shift from a physiological contractile phenotype to an adverse proliferative or synthetic state, which is a major event leading to aortic disease. VSMCs are exposed to multiple mechanical signals from their microenvironment including vascular extracellular matrix (ECM) stiffness and stretch which regulate VSMC contraction. How ECM stiffness regulates the function and phenotype of VSMCs is not well understood. In this study, we introduce in vitro and in vivo models to evaluate the impact of ECM stiffnesses on VSMC function. Through unbiased transcriptome sequencing analysis, we detected upregulation of synthetic phenotype-related genes including osteopontin, matrix metalloproteinases, and inflammatory cytokines in VSMCs cultured using soft matrix hydrogels in vitro, suggesting VSMC dedifferentiation toward a synthetic phenotype upon ECM softening. For the in vivo model, the lysyl oxidase inhibitor β-aminopropionitrile monofumarate (BAPN) was administrated to disrupt the cross-linking of collagen to induce ECM softening. Consistently, decreased ECM stiffnesses promoted VSMC phenotypic switching to a synthetic phenotype as evidenced by upregulation of synthetic phenotype-related genes in the aortas of mice following BAPN treatment. Finally, BAPN-treated mice showed severe expansion and developed aortic dissection. Our study reveals the pivotal role of ECM softening in regulating the VSMC phenotype switch and provides a potential target for treating VSMC dysfunction and aortic dissection disease.
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27
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Shen YH, LeMaire SA, Webb NR, Cassis LA, Daugherty A, Lu HS. Aortic Aneurysms and Dissections Series. Arterioscler Thromb Vasc Biol 2020; 40:e37-e46. [PMID: 32101472 DOI: 10.1161/atvbaha.120.313991] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The aortic wall is composed of highly dynamic cell populations and extracellular matrix. In response to changes in the biomechanical environment, aortic cells and extracellular matrix modulate their structure and functions to increase aortic wall strength and meet the hemodynamic demand. Compromise in the structural and functional integrity of aortic components leads to aortic degeneration, biomechanical failure, and the development of aortic aneurysms and dissections (AAD). A better understanding of the molecular pathogenesis of AAD will facilitate the development of effective medications to treat these conditions. Here, we summarize recent findings on AAD published in ATVB. In this issue, we focus on the dynamics of aortic cells and extracellular matrix in AAD; in the next issue, we will focus on the role of signaling pathways in AAD.
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Affiliation(s)
- Ying H Shen
- From the Division of Cardiothoracic Surgery, Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, TX (Y.H.S., S.A.L.).,Department of Cardiovascular Surgery, Texas Heart Institute, Houston (Y.H.S., S.A.L.)
| | - Scott A LeMaire
- From the Division of Cardiothoracic Surgery, Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, TX (Y.H.S., S.A.L.).,Department of Cardiovascular Surgery, Texas Heart Institute, Houston (Y.H.S., S.A.L.)
| | - Nancy R Webb
- Department of Pharmacology and Nutritional Sciences (N.R.W., L.A.C.), University of Kentucky, Lexington
| | - Lisa A Cassis
- Department of Pharmacology and Nutritional Sciences (N.R.W., L.A.C.), University of Kentucky, Lexington
| | - Alan Daugherty
- Department of Physiology and Saha Cardiovascular Research Center (A.D., H.S.L.), University of Kentucky, Lexington
| | - Hong S Lu
- Department of Physiology and Saha Cardiovascular Research Center (A.D., H.S.L.), University of Kentucky, Lexington
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28
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Liu B, Granville DJ, Golledge J, Kassiri Z. Pathogenic mechanisms and the potential of drug therapies for aortic aneurysm. Am J Physiol Heart Circ Physiol 2020; 318:H652-H670. [PMID: 32083977 DOI: 10.1152/ajpheart.00621.2019] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Aortic aneurysm is a permanent focal dilation of the aorta. It is usually an asymptomatic disease but can lead to sudden death due to aortic rupture. Aortic aneurysm-related mortalities are estimated at ∼200,000 deaths per year worldwide. Because no pharmacological treatment has been found to be effective so far, surgical repair remains the only treatment for aortic aneurysm. Aortic aneurysm results from changes in the aortic wall structure due to loss of smooth muscle cells and degradation of the extracellular matrix and can form in different regions of the aorta. Research over the past decade has identified novel contributors to aneurysm formation and progression. The present review provides an overview of cellular and noncellular factors as well as enzymes that process extracellular matrix and regulate cellular functions (e.g., matrix metalloproteinases, granzymes, and cathepsins) in the context of aneurysm pathogenesis. An update of clinical trials focusing on therapeutic strategies to slow abdominal aortic aneurysm growth and efforts underway to develop effective pharmacological treatments is also provided.
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Affiliation(s)
- Bo Liu
- University of Wisconsin, Madison, Department of Surgery, Madison Wisconsin
| | - David J Granville
- International Collaboration on Repair Discoveries Centre and University of British Columbia Centre for Heart Lung Innovation, Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Jonathan Golledge
- The Queensland Research Centre for Peripheral Vascular Disease, College of Medicine and Dentistry, James Cook University, Department of Vascular and Endovascular Surgery, Townsville Hospital and Health Services, Townsville, Queensland, Australia
| | - Zamaneh Kassiri
- University of Alberta, Department of Physiology, Cardiovascular Research Center, Faculty of Medicine and Dentistry, Edmonton, Alberta, Canada
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29
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Coleman PR, Lay AJ, Ting KK, Zhao Y, Li J, Jarrah S, Vadas MA, Gamble JR. YAP and the RhoC regulator ARHGAP18, are required to mediate flow-dependent endothelial cell alignment. Cell Commun Signal 2020; 18:18. [PMID: 32013974 PMCID: PMC6998144 DOI: 10.1186/s12964-020-0511-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Accepted: 01/04/2020] [Indexed: 01/02/2023] Open
Abstract
BACKGROUND Vascular endothelial cell alignment in the direction of flow is an adaptive response that protects against aortic diseases such as atherosclerosis. The RhoGTPases are known to regulate this alignment. We have shown previously that ARHGAP18 in endothelial cells is a negative regulator of RhoC and its expression is essential in flow-mediated alignment. Depletion of ARHGAP18 inhibits alignment and results in the induction of a pro-inflammatory phenotype. In embryogenesis, ARHGAP18 was identified as a downstream effector of the Yes-associated protein, YAP, which regulates cell shape and size. METHODS We have used siRNA technology to deplete either ARHGAP18 or YAP in human endothelial cells. The in vitro studies were performed under athero-protective, laminar flow conditions. The analysis of YAP activity was also investigated, using high performance confocal imaging, in our ARHGAP18 knockout mutant mice. RESULTS We show here that loss of ARHGAP18, although decreasing the expression of YAP results in its nuclear localisation consistent with activation. We further show that depletion of YAP itself results in its activation as defined by an in increase in its nuclear localisation and an increase in the YAP target gene, CyR61. Depletion of YAP, similar to that observed for ARHGAP18 depletion, results in loss of endothelial cell alignment under high shear stress mediated flow and also in the activation of NFkB, as determined by p65 nuclear localisation. In contrast, ARHGAP18 overexpression results in upregulation of YAP, its phosphorylation, and a decrease in the YAP target gene Cyr61, consistent with YAP inactivation. Finally, in ARHGAP18 deleted mice, in regions where there is a loss of endothelial cell alignment, a situation associated with a priming of the cells to a pro-inflammatory phenotype, YAP shows nuclear localisation. CONCLUSION Our results show that YAP is downstream of ARHGAP18 in mature endothelial cells and that this pathway is involved in the athero-protective alignment of endothelial cells under laminar shear stress. ARHGAP18 depletion leads to a disruption of the junctions as seen by loss of VE-Cadherin localisation to these regions and a concomitant localisation of YAP to the nucleus.
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Affiliation(s)
- Paul R Coleman
- Centre for the Endothelium, Vascular Biology Program, Centenary Institute, The University of Sydney, Locked Bag 6, Newtown, Sydney, 2042, Australia
| | - Angelina J Lay
- Centre for the Endothelium, Vascular Biology Program, Centenary Institute, The University of Sydney, Locked Bag 6, Newtown, Sydney, 2042, Australia
| | - Ka Ka Ting
- Centre for the Endothelium, Vascular Biology Program, Centenary Institute, The University of Sydney, Locked Bag 6, Newtown, Sydney, 2042, Australia
| | - Yang Zhao
- Centre for the Endothelium, Vascular Biology Program, Centenary Institute, The University of Sydney, Locked Bag 6, Newtown, Sydney, 2042, Australia
| | - Jia Li
- Centre for the Endothelium, Vascular Biology Program, Centenary Institute, The University of Sydney, Locked Bag 6, Newtown, Sydney, 2042, Australia
| | - Sorour Jarrah
- Centre for the Endothelium, Vascular Biology Program, Centenary Institute, The University of Sydney, Locked Bag 6, Newtown, Sydney, 2042, Australia
| | - Mathew A Vadas
- Centre for the Endothelium, Vascular Biology Program, Centenary Institute, The University of Sydney, Locked Bag 6, Newtown, Sydney, 2042, Australia
| | - Jennifer R Gamble
- Centre for the Endothelium, Vascular Biology Program, Centenary Institute, The University of Sydney, Locked Bag 6, Newtown, Sydney, 2042, Australia.
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30
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Lay AJ, Coleman PR, Formaz-Preston A, Ting KK, Roediger B, Weninger W, Schwartz MA, Vadas MA, Gamble JR. ARHGAP18: A Flow-Responsive Gene That Regulates Endothelial Cell Alignment and Protects Against Atherosclerosis. J Am Heart Assoc 2020; 8:e010057. [PMID: 30630384 PMCID: PMC6497359 DOI: 10.1161/jaha.118.010057] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Background Vascular endothelial cell (EC) alignment in the direction of flow is an adaptive response that protects against aortic diseases, such as atherosclerosis. The Rho GTPases are known to regulate this alignment. Herein, we analyze the effect of ARHGAP18 on the regulation of EC alignment and examine the effect of ARHGAP18 deficiency on the development of atherosclerosis in mice. Methods and Results We used in vitro analysis of ECs under flow conditions together with apolipoprotein E−/−Arhgap18−/− double‐mutant mice to study the function of ARHGAP18 in a high‐fat diet–induced model of atherosclerosis. Depletion of ARHGAP18 inhibited the alignment of ECs in the direction of flow and promoted inflammatory phenotype, as evidenced by disrupted junctions and increased expression of nuclear factor‐κB and intercellular adhesion molecule‐1 and decreased endothelial nitric oxide synthase. Mice with double deletion in ARHGAP18 and apolipoprotein E and fed a high‐fat diet show early onset of atherosclerosis, with lesions developing in atheroprotective regions. Conclusions ARHGAP18 is a protective gene that maintains EC alignments in the direction of flow. Deletion of ARHGAP18 led to loss of EC ability to align and promoted atherosclerosis development.
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Affiliation(s)
- Angelina J Lay
- 1 Vascular Biology Program Centre for the Endothelium Centenary Institute The University of Sydney Newtown Australia
| | - Paul R Coleman
- 1 Vascular Biology Program Centre for the Endothelium Centenary Institute The University of Sydney Newtown Australia
| | - Ann Formaz-Preston
- 1 Vascular Biology Program Centre for the Endothelium Centenary Institute The University of Sydney Newtown Australia
| | - Ka Ka Ting
- 1 Vascular Biology Program Centre for the Endothelium Centenary Institute The University of Sydney Newtown Australia
| | - Ben Roediger
- 2 Immune Imaging Program, Centenary Institute The University of Sydney Newtown Australia
| | - Wolfgang Weninger
- 2 Immune Imaging Program, Centenary Institute The University of Sydney Newtown Australia
| | - Martin A Schwartz
- 3 Department of Internal Medicine Yale Cardiovascular Research Center Yale University New Haven CT
| | - Mathew A Vadas
- 1 Vascular Biology Program Centre for the Endothelium Centenary Institute The University of Sydney Newtown Australia
| | - Jennifer R Gamble
- 1 Vascular Biology Program Centre for the Endothelium Centenary Institute The University of Sydney Newtown Australia
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31
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Zhong L, He X, Si X, Wang H, Li B, Hu Y, Li M, Chen X, Liao W, Liao Y, Bin J. SM22α (Smooth Muscle 22α) Prevents Aortic Aneurysm Formation by Inhibiting Smooth Muscle Cell Phenotypic Switching Through Suppressing Reactive Oxygen Species/NF-κB (Nuclear Factor-κB). Arterioscler Thromb Vasc Biol 2019; 39:e10-e25. [PMID: 30580562 DOI: 10.1161/atvbaha.118.311917] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Objective- Vascular smooth muscle cell phenotypic transition plays a critical role in the formation of abdominal aortic aneurysms (AAAs). SM22α (smooth muscle 22α) has a vital role in maintaining the smooth muscle cell phenotype and is downregulated in AAA. However, whether manipulation of the SM22α gene influences the pathogenesis of AAA is unclear. Here, we investigated whether SM22α prevents AAA formation and explored the underlying mechanisms. Approach and Results- In both human and animal AAA tissues, a smooth muscle cell phenotypic switch was confirmed, as manifested by the downregulation of SM22α and α-SMA (α-smooth muscle actin) proteins. The methylation level of the SM22α gene promoter was dramatically higher in mouse AAA tissues than in control tissues. SM22α knockdown in ApoE-/- (apolipoprotein E-deficient) mice treated with Ang II (angiotensin II) accelerated the formation of AAAs, as evidenced by a larger maximal aortic diameter and more medial elastin degradation than those found in control mice, whereas SM22α overexpression exerted opposite effects. Similar results were obtained in a calcium chloride-induced mouse AAA model. Mechanistically, SM22α deficiency significantly increased reactive oxygen species production and NF-κB (nuclear factor-κB) activation in AAA tissues, whereas SM22α overexpression produced opposite effects. NF-κB antagonist SN50 or antioxidant N-acetyl-L-cysteine partially abrogated the exacerbating effects of SM22α silencing on AAA formation. Conclusions- SM22α reduction in AAAs because of the SM22α promoter hypermethylation accelerates AAA formation through the reactive oxygen species/NF-κB pathway, and therapeutic approaches to increase SM22α expression are potentially beneficial for preventing AAA formation.
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Affiliation(s)
- Lintao Zhong
- From the Department of Cardiology, State Key Laboratory of Organ Failure Research, Nanfang Hospital, Southern Medical University, Guangzhou, China (L.Z., X.H., X.S., H.W., B.L., Y.H., M.L., X.C., Y.L., J.B.)
| | - Xiang He
- From the Department of Cardiology, State Key Laboratory of Organ Failure Research, Nanfang Hospital, Southern Medical University, Guangzhou, China (L.Z., X.H., X.S., H.W., B.L., Y.H., M.L., X.C., Y.L., J.B.)
| | - Xiaoyun Si
- From the Department of Cardiology, State Key Laboratory of Organ Failure Research, Nanfang Hospital, Southern Medical University, Guangzhou, China (L.Z., X.H., X.S., H.W., B.L., Y.H., M.L., X.C., Y.L., J.B.)
| | - He Wang
- From the Department of Cardiology, State Key Laboratory of Organ Failure Research, Nanfang Hospital, Southern Medical University, Guangzhou, China (L.Z., X.H., X.S., H.W., B.L., Y.H., M.L., X.C., Y.L., J.B.)
| | - Bing Li
- From the Department of Cardiology, State Key Laboratory of Organ Failure Research, Nanfang Hospital, Southern Medical University, Guangzhou, China (L.Z., X.H., X.S., H.W., B.L., Y.H., M.L., X.C., Y.L., J.B.)
| | - Yinlan Hu
- From the Department of Cardiology, State Key Laboratory of Organ Failure Research, Nanfang Hospital, Southern Medical University, Guangzhou, China (L.Z., X.H., X.S., H.W., B.L., Y.H., M.L., X.C., Y.L., J.B.)
| | - Mengsha Li
- From the Department of Cardiology, State Key Laboratory of Organ Failure Research, Nanfang Hospital, Southern Medical University, Guangzhou, China (L.Z., X.H., X.S., H.W., B.L., Y.H., M.L., X.C., Y.L., J.B.)
| | - Xiaoqiang Chen
- From the Department of Cardiology, State Key Laboratory of Organ Failure Research, Nanfang Hospital, Southern Medical University, Guangzhou, China (L.Z., X.H., X.S., H.W., B.L., Y.H., M.L., X.C., Y.L., J.B.)
| | - Wangjun Liao
- Department of Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, China (W.L.)
| | - Yulin Liao
- From the Department of Cardiology, State Key Laboratory of Organ Failure Research, Nanfang Hospital, Southern Medical University, Guangzhou, China (L.Z., X.H., X.S., H.W., B.L., Y.H., M.L., X.C., Y.L., J.B.)
| | - Jianping Bin
- From the Department of Cardiology, State Key Laboratory of Organ Failure Research, Nanfang Hospital, Southern Medical University, Guangzhou, China (L.Z., X.H., X.S., H.W., B.L., Y.H., M.L., X.C., Y.L., J.B.)
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32
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Liu H, Xiao T, Zhang L, Huang Y, Shi Y, Ji Q, Shi L, Zeng T, Lin Y, Liu L. Effects of circulating levels of Th17 cells on the outcomes of acute Stanford B aortic dissection patients after thoracic endovascular aortic repair: A 36-month follow-up study a cohort study. Medicine (Baltimore) 2019; 98:e18241. [PMID: 31852089 PMCID: PMC6922440 DOI: 10.1097/md.0000000000018241] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
T helper 17 (Th17) cells are related to the progression of aortic dissection. This study aimed to determine whether circulating Th17 levels are associated with the prognosis of acute Stanford type B aortic dissection (STBAD) after thoracic endovascular aortic repair (TEVAR).A cohort study was performed and STBAD patients (n = 140) received TEVAR were enrolled, the circulating Th17 levels were measured and the patients were divided into low and high Th17 groups, and 36 months of follow-up was performed. The data for mortality, survival outcomes, heart structure and function changes, aortic regurgitation prevalence, and aortic remodeling outcomes were recorded.Lower mortality and fewer complications were observed in the low Th17 group than in the high Th17 group in the third year of follow-up. In addition, the low Th17 group exhibited better cardiac remodeling and cardiac function when compared with that in the high Th17 group in the second to third year after TEVAR. Aortic reflux was improved in both groups but was more pronounced in the low Th17 group. During follow-up, the true lumen of the proximal thoracic aorta at the level of the celiac trunk in both the low and high Th17 groups continuously enlarged and was more pronounced in the low Th17 group.Circulating Th17 cells were related to cardiac and aortic remodeling and prognosis during STBAD after TEVAR. Anti-inflammatory therapy may be useful for STBAD patients who have undergone TEVAR.
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Affiliation(s)
- Hongtao Liu
- Department of Cardiovascular medicine, Shenzhen Longhua District Central Longhua Central Hospital Affiliated Guangdong Medical University, Shenzhen, Guangdong Province
| | - Ting Xiao
- Department of Cardiovascular medicine, Shenzhen Longhua District Central Longhua Central Hospital Affiliated Guangdong Medical University, Shenzhen, Guangdong Province
| | - Le Zhang
- Department of Cardiovascular medicine, Shenzhen Longhua District Central Longhua Central Hospital Affiliated Guangdong Medical University, Shenzhen, Guangdong Province
| | - Ying Huang
- Department of Cardiology, the People's Hospital of Guangxi Zhuang Autonomous Region, Nanning
| | - Ying Shi
- Department of Cardiology, the People's Hospital of Guangxi Zhuang Autonomous Region, Nanning
| | - Qingwei Ji
- Emergency & Critical Care Center, Beijing Anzhen Hospital, Capital Medical University, and Beijing Institute of Heart, Lung, and Blood Vessel Diseases, Beijing, China
| | - Lei Shi
- Department of Cardiology, the People's Hospital of Guangxi Zhuang Autonomous Region, Nanning
| | - Tao Zeng
- Department of Cardiology, the People's Hospital of Guangxi Zhuang Autonomous Region, Nanning
| | - Yingzhong Lin
- Department of Cardiology, the People's Hospital of Guangxi Zhuang Autonomous Region, Nanning
| | - Ling Liu
- Department of Cardiology, the People's Hospital of Guangxi Zhuang Autonomous Region, Nanning
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33
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Pan L, Lin Z, Tang X, Tian J, Zheng Q, Jing J, Xie L, Chen H, Lu Q, Wang H, Li Q, Han Y, Ji Y. S-Nitrosylation of Plastin-3 Exacerbates Thoracic Aortic Dissection Formation via Endothelial Barrier Dysfunction. Arterioscler Thromb Vasc Biol 2019; 40:175-188. [PMID: 31694393 DOI: 10.1161/atvbaha.119.313440] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
OBJECTIVE Thoracic aortic dissection (TAD) is a fatal disease that leads to aortic rupture and sudden death. However, little is known about the effect and molecular mechanism of S-nitrosylation (SNO) modifications in TAD formation. Approach and Results: SNO levels were higher in aortic tissues from TAD patients than in those from healthy controls, and PLS3 (plastin-3) SNO was identified by liquid chromatography-tandem mass spectrometry analysis. Furthermore, tail vein administration of endothelial-specific adeno-associated viruses of mutant PLS3-C566A (denitrosylated form) suppressed the development of TAD in mice, but the wild-type PLS3 (S-nitrosylated form) virus did not. Mechanistically, Ang II (angiotensin II)-induced PLS3 SNO enhanced the association of PLS3 with both plectin and cofilin via an iNOS (inducible nitric oxide synthase)-dependent pathway in endothelial cells. The formation of PLS3/plectin/cofilin complex promoted cell migration and tube formation but weakened adherens junction formation in Ang II-treated endothelial cells. Interestingly, denitrosylated form of PLS3 partially mitigated Ang II-induced PLS3/plectin/cofilin complex formation and cell junction disruption. Additionally, the inhibition of iNOS attenuated PLS3 SNO and the association of PLS3 with plectin and cofilin, thereby modulating endothelial barrier function. CONCLUSIONS Our data indicate that protein SNO modification in endothelial cells modulates the progression of aortic aneurysm and dissection. The iNOS-mediated SNO of PLS3 at the Cys566 site promoted its interaction with cofilin and plectin, thus contributing to endothelial barrier disruption and pathological angiogenesis in TAD.
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Affiliation(s)
- Lihong Pan
- From the Key Laboratory of Cardiovascular and Cerebrovascular Medicine, State Key Laboratory of Reproductive Medicine, Key Laboratory of Targeted Intervention of Cardiovascular Disease, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, Nanjing Medical University, China (L.P., Z.L., X.T., J.T., Q.Z., L.X., H.C., Y.J.)
| | - Zhe Lin
- From the Key Laboratory of Cardiovascular and Cerebrovascular Medicine, State Key Laboratory of Reproductive Medicine, Key Laboratory of Targeted Intervention of Cardiovascular Disease, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, Nanjing Medical University, China (L.P., Z.L., X.T., J.T., Q.Z., L.X., H.C., Y.J.)
| | - Xin Tang
- From the Key Laboratory of Cardiovascular and Cerebrovascular Medicine, State Key Laboratory of Reproductive Medicine, Key Laboratory of Targeted Intervention of Cardiovascular Disease, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, Nanjing Medical University, China (L.P., Z.L., X.T., J.T., Q.Z., L.X., H.C., Y.J.)
| | - Jiaxin Tian
- From the Key Laboratory of Cardiovascular and Cerebrovascular Medicine, State Key Laboratory of Reproductive Medicine, Key Laboratory of Targeted Intervention of Cardiovascular Disease, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, Nanjing Medical University, China (L.P., Z.L., X.T., J.T., Q.Z., L.X., H.C., Y.J.)
| | - Qiao Zheng
- From the Key Laboratory of Cardiovascular and Cerebrovascular Medicine, State Key Laboratory of Reproductive Medicine, Key Laboratory of Targeted Intervention of Cardiovascular Disease, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, Nanjing Medical University, China (L.P., Z.L., X.T., J.T., Q.Z., L.X., H.C., Y.J.)
| | - Jin Jing
- Department of Cardiovascular Center, The Second Affiliated Hospital of Nanjing Medical University, China (J.J., Q.L.)
| | - Liping Xie
- From the Key Laboratory of Cardiovascular and Cerebrovascular Medicine, State Key Laboratory of Reproductive Medicine, Key Laboratory of Targeted Intervention of Cardiovascular Disease, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, Nanjing Medical University, China (L.P., Z.L., X.T., J.T., Q.Z., L.X., H.C., Y.J.)
| | - Hongshan Chen
- From the Key Laboratory of Cardiovascular and Cerebrovascular Medicine, State Key Laboratory of Reproductive Medicine, Key Laboratory of Targeted Intervention of Cardiovascular Disease, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, Nanjing Medical University, China (L.P., Z.L., X.T., J.T., Q.Z., L.X., H.C., Y.J.)
| | - Qiulun Lu
- Department of Cardiovascular Center, The Second Affiliated Hospital of Nanjing Medical University, China (J.J., Q.L.)
| | - Hong Wang
- Center for Metabolic Disease Research, Department of Pharmacology, Temple University School of Medicine, Philadelphia, PA (H.W.)
| | - Qingguo Li
- Key Laboratory of Cardiovascular and Cerebrovascular Medicine, School of Pharmacy, Nanjing Medical University, China (Q.L.)
| | - Yi Han
- Department of Geriatrics, The First Affiliated Hospital of Nanjing Medical University, China (Y.H.)
| | - Yong Ji
- From the Key Laboratory of Cardiovascular and Cerebrovascular Medicine, State Key Laboratory of Reproductive Medicine, Key Laboratory of Targeted Intervention of Cardiovascular Disease, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, Nanjing Medical University, China (L.P., Z.L., X.T., J.T., Q.Z., L.X., H.C., Y.J.)
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Senturk T, Antal A, Gunel T. Potential function of microRNAs in thoracic aortic aneurysm and thoracic aortic dissection pathogenesis. Mol Med Rep 2019; 20:5353-5362. [PMID: 31638233 DOI: 10.3892/mmr.2019.10761] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2019] [Accepted: 09/09/2019] [Indexed: 11/05/2022] Open
Abstract
Thoracic aortic aneurysm (TAA) and thoracic aortic dissection (TAD) are aortic diseases known as 'silent killers'. While TAA is characterized by an enlargement of at least half of the normal aortic diameter, TAD is characterized by progressive pseudo‑lumen formation, which results in the gradual separation of the aortic wall layers. In the present study, a total of 28 serum samples from nine patients with TAA, nine patients with TAD and ten healthy individuals were studied. The aim of the present study was to investigate the expression profiles of hsa‑microRNA(miR)‑143‑3p and hsa‑miR‑22‑3p in TAA and TAD in order to identify candidate miRNAs that are responsible for the pathogenesis of the diseases. Following the detection of target mRNAs from candidate miRNAs by bioinformatic tools, the expression profiles of target mRNAs were analyzed. A quantitative polymerase chain reaction was performed to detect Kirsten rat sarcoma viral oncogene homolog (KRAS), mitogen‑activated protein kinase (MAPK) 7, MAPK14 and transgelin (TAGLN) mRNA expression profiles. The results of the comparison with control group demonstrated that the increase in the expression levels of hsa‑miR‑143‑3p (P=0.017) and hsa‑miR‑22 (P=0.03) candidate miRNAs were statistically significant in the TAA group, but not in the TAD group. The expression of KRAS and MAPK7 mRNAs decreased in the two groups compared with the control group. The level of expression of MAPK14 decreased in the TAD group, but increased in the TAA group compared with the control group. TAGLN mRNA expression level increased in the two groups. The statistically significant difference in the expression of hsa‑miR‑143‑3p suggests that hsa‑miR‑143‑3p may be a potential biomarker for TAA, as the expression of the target mRNAs KRAS and MAPK7 decreased and the miRNA‑mRNA association was negatively correlated. These miRNAs and their associated genes may serve important functions in TAA formation, the altered expression of which may be important in the pathogenesis of TAA.
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Affiliation(s)
- Tugce Senturk
- Department of Molecular Biology and Genetics, Istanbul University, Istanbul 34134, Turkey
| | - Arzu Antal
- Cardiovascular Surgery Clinic, Kartal Kosuyolu Training and Research Hospital, Istanbul 34865, Turkey
| | - Tuba Gunel
- Department of Molecular Biology and Genetics, Istanbul University, Istanbul 34134, Turkey
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Nogi M, Satoh K, Sunamura S, Kikuchi N, Satoh T, Kurosawa R, Omura J, Elias-Al-Mamun M, Abdul Hai Siddique M, Numano K, Kudo S, Miyata S, Akiyama M, Kumagai K, Kawamoto S, Saiki Y, Shimokawa H. Small GTP-Binding Protein GDP Dissociation Stimulator Prevents Thoracic Aortic Aneurysm Formation and Rupture by Phenotypic Preservation of Aortic Smooth Muscle Cells. Circulation 2019; 138:2413-2433. [PMID: 29921611 DOI: 10.1161/circulationaha.118.035648] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND Thoracic aortic aneurysm (TAA) and dissection are fatal diseases that cause aortic rupture and sudden death. The small GTP-binding protein GDP dissociation stimulator (SmgGDS) is a crucial mediator of the pleiotropic effects of statins. Previous studies revealed that reduced force generation in aortic smooth muscle cells (AoSMCs) causes TAA and thoracic aortic dissection. METHODS To examine the role of SmgGDS in TAA formation, we used an angiotensin II (1000 ng·min-1·kg-1, 4 weeks)-induced TAA model. RESULTS We found that 33% of Apoe-/- SmgGDS+/- mice died suddenly as a result of TAA rupture, whereas there was no TAA rupture in Apoe-/- control mice. In contrast, there was no significant difference in the ratio of abdominal aortic aneurysm rupture between the 2 genotypes. We performed ultrasound imaging every week to follow up the serial changes in aortic diameters. The diameter of the ascending aorta progressively increased in Apoe-/- SmgGDS+/- mice compared with Apoe-/- mice, whereas that of the abdominal aorta remained comparable between the 2 genotypes. Histological analysis of Apoe-/- SmgGDS+/- mice showed dissections of major thoracic aorta in the early phase of angiotensin II infusion (day 3 to 5) and more severe elastin degradation compared with Apoe-/- mice. Mechanistically, Apoe-/- SmgGDS+/- mice showed significantly higher levels of oxidative stress, matrix metalloproteinases, and inflammatory cell migration in the ascending aorta compared with Apoe-/- mice. For mechanistic analyses, we primary cultured AoSMCs from the 2 genotypes. After angiotensin II (100 nmol/L) treatment for 24 hours, Apoe-/- SmgGDS+/- AoSMCs showed significantly increased matrix metalloproteinase activity and oxidative stress levels compared with Apoe-/- AoSMCs. In addition, SmgGDS deficiency increased cytokines/chemokines and growth factors in AoSMCs. Moreover, expressions of fibrillin-1 ( FBN1), α-smooth muscle actin ( ACTA2), myosin-11 ( MYH11), MYLLK, and PRKG1, which are force generation genes, were significantly reduced in Apoe-/- SmgGDS+/- AoSMCs compared with Apoe-/- AoSMCs. A similar tendency was noted in AoSMCs from patients with TAA compared with those from control subjects. Finally, local delivery of the SmgGDS gene construct reversed the dilation of the ascending aorta in Apoe-/- SmgGDS+/- mice. CONCLUSIONS These results suggest that SmgGDS is a novel therapeutic target for the prevention and treatment of TAA.
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Affiliation(s)
- Masamichi Nogi
- Departments of Cardiovascular Medicine (M.N., K.S., S.S., N.K., T.S., R.K., J.O., M.E.-A.-M., M.A.H.S., K.N., S. Kudo, S.M., H.S.), Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Kimio Satoh
- Departments of Cardiovascular Medicine (M.N., K.S., S.S., N.K., T.S., R.K., J.O., M.E.-A.-M., M.A.H.S., K.N., S. Kudo, S.M., H.S.), Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Shinichiro Sunamura
- Departments of Cardiovascular Medicine (M.N., K.S., S.S., N.K., T.S., R.K., J.O., M.E.-A.-M., M.A.H.S., K.N., S. Kudo, S.M., H.S.), Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Nobuhiro Kikuchi
- Departments of Cardiovascular Medicine (M.N., K.S., S.S., N.K., T.S., R.K., J.O., M.E.-A.-M., M.A.H.S., K.N., S. Kudo, S.M., H.S.), Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Taijyu Satoh
- Departments of Cardiovascular Medicine (M.N., K.S., S.S., N.K., T.S., R.K., J.O., M.E.-A.-M., M.A.H.S., K.N., S. Kudo, S.M., H.S.), Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Ryo Kurosawa
- Departments of Cardiovascular Medicine (M.N., K.S., S.S., N.K., T.S., R.K., J.O., M.E.-A.-M., M.A.H.S., K.N., S. Kudo, S.M., H.S.), Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Junichi Omura
- Departments of Cardiovascular Medicine (M.N., K.S., S.S., N.K., T.S., R.K., J.O., M.E.-A.-M., M.A.H.S., K.N., S. Kudo, S.M., H.S.), Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Md Elias-Al-Mamun
- Departments of Cardiovascular Medicine (M.N., K.S., S.S., N.K., T.S., R.K., J.O., M.E.-A.-M., M.A.H.S., K.N., S. Kudo, S.M., H.S.), Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Mohammad Abdul Hai Siddique
- Departments of Cardiovascular Medicine (M.N., K.S., S.S., N.K., T.S., R.K., J.O., M.E.-A.-M., M.A.H.S., K.N., S. Kudo, S.M., H.S.), Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Kazuhiko Numano
- Departments of Cardiovascular Medicine (M.N., K.S., S.S., N.K., T.S., R.K., J.O., M.E.-A.-M., M.A.H.S., K.N., S. Kudo, S.M., H.S.), Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Shun Kudo
- Departments of Cardiovascular Medicine (M.N., K.S., S.S., N.K., T.S., R.K., J.O., M.E.-A.-M., M.A.H.S., K.N., S. Kudo, S.M., H.S.), Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Satoshi Miyata
- Departments of Cardiovascular Medicine (M.N., K.S., S.S., N.K., T.S., R.K., J.O., M.E.-A.-M., M.A.H.S., K.N., S. Kudo, S.M., H.S.), Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Masatoshi Akiyama
- Cardiovascular Surgery (M.A., K.K., S. Kawamoto, Y.S.), Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Kiichiro Kumagai
- Cardiovascular Surgery (M.A., K.K., S. Kawamoto, Y.S.), Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Shunsuke Kawamoto
- Cardiovascular Surgery (M.A., K.K., S. Kawamoto, Y.S.), Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Yoshikatsu Saiki
- Cardiovascular Surgery (M.A., K.K., S. Kawamoto, Y.S.), Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Hiroaki Shimokawa
- Departments of Cardiovascular Medicine (M.N., K.S., S.S., N.K., T.S., R.K., J.O., M.E.-A.-M., M.A.H.S., K.N., S. Kudo, S.M., H.S.), Tohoku University Graduate School of Medicine, Sendai, Japan
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Huan W, Zhang J, Li Y, Zhi K. Involvement of DHX9/YB-1 complex induced alternative splicing of Krüppel-like factor 5 mRNA in phenotypic transformation of vascular smooth muscle cells. Am J Physiol Cell Physiol 2019; 317:C262-C269. [PMID: 31116584 DOI: 10.1152/ajpcell.00067.2019] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Phenotypic transformation of vascular smooth muscle cells is a key phenomenon in the development of aortic dissection disease. However, the molecular mechanisms underlying this phenomenon have not been fully understood. We used β-BAPN combined with ANG II treatment to establish a disease model of acute aortic dissection (AAD) in mice. We first examined the gene expression profile of aortic tissue in mice with AAD using a gene chip, followed by confirmation of DExH-box helicase 9 (DHX9) expression using RT-PCR, Western blot, and immunofluorescence analysis. We further developed vascular smooth muscle cell-specific DHX9 conditional knockout mice and conducted differential and functional analysis of gene expression and alternative splicing in mouse vascular smooth muscle cells. Finally, we examined the involvement of DHX9 in Krüppel-like factor 5 (KLF5) mRNA alternative splicing. Our study reported a significant decrease in the expression of DHX9 in the vascular smooth muscle cells (VSMCs) of mice with AAD. The smooth muscle cell-specific knockout of DHX9 exacerbated the development of AAD and altered the transcriptional level expression of many smooth muscle cell phenotype-related genes. Finally, we reported that DHX9 may induce alternative splicing of KLF5 mRNA by bridging YB-1. These results together suggested a new pathogenic mechanism underlying the development of AAD, and future research of this mechanism may help identify effective therapeutic intervention for AAD.
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Affiliation(s)
- Wei Huan
- Department of Vascular Surgery, Changzheng Hospital, The Second Military Medical University, Shanghai, China
| | - Jing Zhang
- Department of Cardiovascular Surgery, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Yingke Li
- Department of Anesthesiology, Changzheng Hospital, The Second Military Medical University, Shanghai, China
| | - Kangkang Zhi
- Department of Vascular Surgery, Changzheng Hospital, The Second Military Medical University, Shanghai, China
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Zeng Z, Xia L, Fan X, Ostriker AC, Yarovinsky T, Su M, Zhang Y, Peng X, Xie Y, Pi L, Gu X, Chung SK, Martin KA, Liu R, Hwa J, Tang WH. Platelet-derived miR-223 promotes a phenotypic switch in arterial injury repair. J Clin Invest 2019; 129:1372-1386. [PMID: 30645204 DOI: 10.1172/jci124508] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Accepted: 01/08/2019] [Indexed: 01/04/2023] Open
Abstract
Upon arterial injury, endothelial denudation leads to platelet activation and delivery of multiple agents (e.g., TXA2, PDGF), promoting VSMC dedifferentiation and proliferation (intimal hyperplasia) during injury repair. The process of resolution of vessel injury repair, and prevention of excessive repair (switching VSMCs back to a differentiated quiescent state), is poorly understood. We now report that internalization of APs by VSMCs promotes resolution of arterial injury by switching on VSMC quiescence. Ex vivo and in vivo studies using lineage tracing reporter mice (PF4-cre × mT/mG) demonstrated uptake of GFP-labeled platelets (mG) by mTomato red-labeled VSMCs (mT) upon arterial wire injury. Genome-wide miRNA sequencing of VSMCs cocultured with APs identified significant increases in platelet-derived miR-223. miR-223 appears to directly target PDGFRβ (in VSMCs), reversing the injury-induced dedifferentiation. Upon arterial injury, platelet miR-223-KO mice exhibited increased intimal hyperplasia, whereas miR-223 mimics reduced intimal hyperplasia. Diabetic mice with reduced expression of miR-223 exhibited enhanced VSMC dedifferentiation and proliferation and increased intimal hyperplasia. Our results suggest that horizontal transfer of platelet-derived miRNAs into VSMCs provides a novel mechanism for regulating VSMC phenotypic switching. Platelets thus play a dual role in vascular injury repair, initiating an immediate repair process and, concurrently, a delayed process to prevent excessive repair.
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Affiliation(s)
- Zhi Zeng
- Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Luoxing Xia
- Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Xuejiao Fan
- Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Allison C Ostriker
- Yale Cardiovascular Research Center, Section of Cardiovascular Medicine, Department of Internal Medicine, Yale School of Medicine, New Haven, Connecticut, USA
| | - Timur Yarovinsky
- Yale Cardiovascular Research Center, Section of Cardiovascular Medicine, Department of Internal Medicine, Yale School of Medicine, New Haven, Connecticut, USA
| | - Meiling Su
- Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Yuan Zhang
- Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Xiangwen Peng
- Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Yi Xie
- Yale Cardiovascular Research Center, Section of Cardiovascular Medicine, Department of Internal Medicine, Yale School of Medicine, New Haven, Connecticut, USA
| | - Lei Pi
- Department of Clinical Biological Resource Bank, Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Xiaoqiong Gu
- Department of Clinical Biological Resource Bank, Department of Clinical Laboratory, Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Sookja Kim Chung
- School of Biomedical Sciences, University of Hong Kong, Hong Kong, China
| | - Kathleen A Martin
- Yale Cardiovascular Research Center, Section of Cardiovascular Medicine, Department of Internal Medicine, Yale School of Medicine, New Haven, Connecticut, USA
| | - Renjing Liu
- Agnes Ginges Laboratory for Diseases of the Aorta, Centenary Institute, and.,Sydney Medical School, University of Sydney, Sydney, New South Wales, Australia
| | - John Hwa
- Yale Cardiovascular Research Center, Section of Cardiovascular Medicine, Department of Internal Medicine, Yale School of Medicine, New Haven, Connecticut, USA
| | - Wai Ho Tang
- Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
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Forrester SJ, Booz GW, Sigmund CD, Coffman TM, Kawai T, Rizzo V, Scalia R, Eguchi S. Angiotensin II Signal Transduction: An Update on Mechanisms of Physiology and Pathophysiology. Physiol Rev 2018; 98:1627-1738. [PMID: 29873596 DOI: 10.1152/physrev.00038.2017] [Citation(s) in RCA: 585] [Impact Index Per Article: 97.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The renin-angiotensin-aldosterone system plays crucial roles in cardiovascular physiology and pathophysiology. However, many of the signaling mechanisms have been unclear. The angiotensin II (ANG II) type 1 receptor (AT1R) is believed to mediate most functions of ANG II in the system. AT1R utilizes various signal transduction cascades causing hypertension, cardiovascular remodeling, and end organ damage. Moreover, functional cross-talk between AT1R signaling pathways and other signaling pathways have been recognized. Accumulating evidence reveals the complexity of ANG II signal transduction in pathophysiology of the vasculature, heart, kidney, and brain, as well as several pathophysiological features, including inflammation, metabolic dysfunction, and aging. In this review, we provide a comprehensive update of the ANG II receptor signaling events and their functional significances for potential translation into therapeutic strategies. AT1R remains central to the system in mediating physiological and pathophysiological functions of ANG II, and participation of specific signaling pathways becomes much clearer. There are still certain limitations and many controversies, and several noteworthy new concepts require further support. However, it is expected that rigorous translational research of the ANG II signaling pathways including those in large animals and humans will contribute to establishing effective new therapies against various diseases.
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Affiliation(s)
- Steven J Forrester
- Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University , Philadelphia, Pennsylvania ; Department of Pharmacology and Toxicology, School of Medicine, University of Mississippi Medical Center , Jackson, Mississippi ; Department of Pharmacology, Center for Hypertension Research, Roy J. and Lucille A. Carver College of Medicine, University of Iowa , Iowa City, Iowa ; and Duke-NUS, Singapore and Department of Medicine, Duke University Medical Center , Durham, North Carolina
| | - George W Booz
- Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University , Philadelphia, Pennsylvania ; Department of Pharmacology and Toxicology, School of Medicine, University of Mississippi Medical Center , Jackson, Mississippi ; Department of Pharmacology, Center for Hypertension Research, Roy J. and Lucille A. Carver College of Medicine, University of Iowa , Iowa City, Iowa ; and Duke-NUS, Singapore and Department of Medicine, Duke University Medical Center , Durham, North Carolina
| | - Curt D Sigmund
- Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University , Philadelphia, Pennsylvania ; Department of Pharmacology and Toxicology, School of Medicine, University of Mississippi Medical Center , Jackson, Mississippi ; Department of Pharmacology, Center for Hypertension Research, Roy J. and Lucille A. Carver College of Medicine, University of Iowa , Iowa City, Iowa ; and Duke-NUS, Singapore and Department of Medicine, Duke University Medical Center , Durham, North Carolina
| | - Thomas M Coffman
- Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University , Philadelphia, Pennsylvania ; Department of Pharmacology and Toxicology, School of Medicine, University of Mississippi Medical Center , Jackson, Mississippi ; Department of Pharmacology, Center for Hypertension Research, Roy J. and Lucille A. Carver College of Medicine, University of Iowa , Iowa City, Iowa ; and Duke-NUS, Singapore and Department of Medicine, Duke University Medical Center , Durham, North Carolina
| | - Tatsuo Kawai
- Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University , Philadelphia, Pennsylvania ; Department of Pharmacology and Toxicology, School of Medicine, University of Mississippi Medical Center , Jackson, Mississippi ; Department of Pharmacology, Center for Hypertension Research, Roy J. and Lucille A. Carver College of Medicine, University of Iowa , Iowa City, Iowa ; and Duke-NUS, Singapore and Department of Medicine, Duke University Medical Center , Durham, North Carolina
| | - Victor Rizzo
- Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University , Philadelphia, Pennsylvania ; Department of Pharmacology and Toxicology, School of Medicine, University of Mississippi Medical Center , Jackson, Mississippi ; Department of Pharmacology, Center for Hypertension Research, Roy J. and Lucille A. Carver College of Medicine, University of Iowa , Iowa City, Iowa ; and Duke-NUS, Singapore and Department of Medicine, Duke University Medical Center , Durham, North Carolina
| | - Rosario Scalia
- Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University , Philadelphia, Pennsylvania ; Department of Pharmacology and Toxicology, School of Medicine, University of Mississippi Medical Center , Jackson, Mississippi ; Department of Pharmacology, Center for Hypertension Research, Roy J. and Lucille A. Carver College of Medicine, University of Iowa , Iowa City, Iowa ; and Duke-NUS, Singapore and Department of Medicine, Duke University Medical Center , Durham, North Carolina
| | - Satoru Eguchi
- Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University , Philadelphia, Pennsylvania ; Department of Pharmacology and Toxicology, School of Medicine, University of Mississippi Medical Center , Jackson, Mississippi ; Department of Pharmacology, Center for Hypertension Research, Roy J. and Lucille A. Carver College of Medicine, University of Iowa , Iowa City, Iowa ; and Duke-NUS, Singapore and Department of Medicine, Duke University Medical Center , Durham, North Carolina
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Zhou B, Li W, Zhao G, Yu B, Ma B, Liu Z, Xie N, Fu Y, Gong Z, Dai R, Zhang X, Kong W. Rapamycin prevents thoracic aortic aneurysm and dissection in mice. J Vasc Surg 2018; 69:921-932.e3. [PMID: 30253896 DOI: 10.1016/j.jvs.2018.05.246] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Accepted: 05/25/2018] [Indexed: 11/19/2022]
Abstract
OBJECTIVE The purpose of this study was to investigate whether rapamycin inhibits the development of thoracic aortic aneurysm and dissection (TAAD) in mice. METHODS Three-week-old C57BL/6J male mice were fed a normal diet and randomized into a control group (n = 6), β-aminopropionitrile fumarate (BAPN) group (Gp A; n = 15), BAPN plus rapamycin (5 mg) group (Gp B; n = 8), and BAPN plus rapamycin (10 mg) group (Gp C; n = 8). Gp A, Gp B, and Gp C were administered BAPN (1 g/kg/d) for 4 weeks. One week after BAPN administration, Gp B and Gp C were treated with rapamycin (5 mg/kg/d or 10 mg/kg/d) through gavage for 21 days. Thoracic aortas were harvested for Western blot and immunofluorescence staining at day 14 and for morphologic and histologic analyses at day 28. RESULTS BAPN treatment induced TAAD formation in mice. The incidence of TAAD in control, Gp A, Gp B, and Gp C mice was 0%, 80%, 25%, and 37.5%, respectively. Smaller thoracic aortic diameters (ascending aorta and arch) were observed in Gp B and Gp C mice than in Gp A mice (Gp B vs Gp A: ascending aorta, ex vivo, 1.07 ± 0.21 mm vs 1.80 ± 0.67 mm [P < .05]; aortic arch, ex vivo, 1.51 ± 0.40 mm vs 2.70 ± 1.06 mm [P < .05]; Gp C vs Gp A: ascending aortas, ex vivo, 1.10 ± 0.33 mm vs 1.80 ± 0.67 mm [P < .05]; aortic arch, ex vivo, 1.55 ± 0.56 mm vs 2.70 ± 1.06 mm [P < .05]). TAAD mice exhibited elastin fragmentation, abundant inflammatory cell infiltration, and significantly increased matrix metalloproteinase production in the aorta, and rapamycin treatment alleviated these changes. The protein levels of p-S6K and p-S6 in TAAD aortic tissues increased significantly, whereas they were suppressed by rapamycin. CONCLUSIONS Rapamycin suppressed TAAD formation, probably by inhibition of mechanistic target of rapamycin signaling and reduction of inflammatory cell infiltration and matrix metalloproteinase 9 production. Targeting of the mechanistic target of rapamycin signaling pathway using rapamycin may be a favorable modulation for the clinical treatment of TAAD.
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MESH Headings
- Aminopropionitrile
- Aortic Dissection/chemically induced
- Aortic Dissection/enzymology
- Aortic Dissection/pathology
- Aortic Dissection/prevention & control
- Animals
- Anti-Inflammatory Agents/pharmacology
- Aorta, Thoracic/drug effects
- Aorta, Thoracic/enzymology
- Aorta, Thoracic/pathology
- Aortic Aneurysm, Thoracic/chemically induced
- Aortic Aneurysm, Thoracic/enzymology
- Aortic Aneurysm, Thoracic/pathology
- Aortic Aneurysm, Thoracic/prevention & control
- Dilatation, Pathologic
- Disease Models, Animal
- Male
- Matrix Metalloproteinase 9/metabolism
- Mice, Inbred C57BL
- Phosphorylation
- Protein Kinase Inhibitors/pharmacology
- Ribosomal Protein S6 Kinases/metabolism
- Signal Transduction/drug effects
- Sirolimus/pharmacology
- TOR Serine-Threonine Kinases/antagonists & inhibitors
- TOR Serine-Threonine Kinases/metabolism
- Vascular Remodeling/drug effects
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Affiliation(s)
- Biao Zhou
- Department of Vascular Surgery, Peking University People's Hospital, Peking University, Beijing, China
| | - Wei Li
- Department of Vascular Surgery, Peking University People's Hospital, Peking University, Beijing, China
| | - Guizhen Zhao
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing, China; Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China
| | - Bing Yu
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing, China; Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China
| | - Baihui Ma
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing, China; Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China
| | - Zhujiang Liu
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing, China; Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China
| | - Nan Xie
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing, China; Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China
| | - Yi Fu
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing, China; Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China
| | - Ze Gong
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing, China; Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China
| | - Rongbo Dai
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing, China; Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China
| | - Xiaoming Zhang
- Department of Vascular Surgery, Peking University People's Hospital, Peking University, Beijing, China.
| | - Wei Kong
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing, China; Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China
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40
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Zeng T, Shi L, Ji Q, Shi Y, Huang Y, Liu Y, Gan J, Yuan J, Lu Z, Xue Y, Hu H, Liu L, Lin Y. Cytokines in aortic dissection. Clin Chim Acta 2018; 486:177-182. [PMID: 30086263 DOI: 10.1016/j.cca.2018.08.005] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Revised: 08/03/2018] [Accepted: 08/03/2018] [Indexed: 02/06/2023]
Abstract
Aortic dissection (AD) is one of the most dangerous forms of vascular disease, characterized by endometrial rupture and intramural hematoma formation. Generally, the pathological process is complicated and closely related to the infiltration of inflammatory cells into the aortic wall and apoptosis of vascular smooth muscle cells. Currently, multiple cytokines, including interleukins, interferon, the tumor necrosis factor superfamily, colony stimulating factor, chemotactic factor, growth factor and so on, have all been demonstrated to play a critical role in AD. Additionally, studies of the link between cytokines and AD could deepen our understanding of the disease and may guide future treatment therapies; therefore, this review focuses on the role of cytokines in AD.
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Affiliation(s)
- Tao Zeng
- Department of Cardiology, the People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, China
| | - Lei Shi
- Department of Cardiology, the People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, China
| | - Qingwei Ji
- Department of Cardiology, the People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, China; Emergency & Critical Care Center, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart, Lung, and Blood Vessel Diseases, Beijing 100029, China
| | - Ying Shi
- Department of Cardiology, the People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, China
| | - Ying Huang
- Department of Ultrasound, the People's Hospital of Guangxi Zhuang Autonomous Region, Nanning 530021, China
| | - Yu Liu
- Department of Cardiology, the People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, China
| | - Jianting Gan
- Department of Cardiology, the People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, China
| | - Jun Yuan
- Department of Cardiology, the People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, China
| | - Zhengde Lu
- Department of Cardiology, the People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, China
| | - Yan Xue
- Department of Cardiology, the People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, China
| | - Haiying Hu
- Department of Cardiology, Handan First Hospital, Handan 056002, China
| | - Ling Liu
- Department of Cardiology, the People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, China.
| | - Yingzhong Lin
- Department of Cardiology, the People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, China.
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41
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Shen M, Hu M, Fedak PWM, Oudit GY, Kassiri Z. Cell-Specific Functions of ADAM17 Regulate the Progression of Thoracic Aortic Aneurysm. Circ Res 2018; 123:372-388. [PMID: 29930147 DOI: 10.1161/circresaha.118.313181] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Revised: 06/03/2018] [Accepted: 06/20/2018] [Indexed: 12/31/2022]
Abstract
RATIONALE ADAM17 (a disintegrin and metalloproteinase-17) is a membrane-bound enzyme that regulates bioavailability of multiple transmembrane proteins by proteolytic processing. ADAM17 has been linked to several pathologies, but its role in thoracic aortic aneurysm (TAA) has not been determined. OBJECTIVE The objective of this study was to explore the cell-specific functions of vascular ADAM17 in the pathogenesis and progression of TAA. METHODS AND RESULTS In aneurysmal thoracic aorta from patients, ADAM17 was increased in tunica media and intima. To determine the function of ADAM17 in the major cells types within these regions, we generated mice lacking ADAM17 in smooth muscle cells (SMC; Adam17f/f/Sm22Cre/+ ) or endothelial cells (Adam17f/f/Tie2Cre/+ ). ADAM17 deficiency in either cell type was sufficient to suppress TAA dilation markedly and adverse remodeling in males and females (in vivo) although through different mechanisms. ADAM17 deficiency in SMCs prevented the contractile-to-synthetic phenotypic switching in these cells after TAA induction, preventing perivascular fibrosis, inflammation, and adverse aortic remodeling. Loss of ADAM17 in endothelial cells protected the integrity of the intimal barrier by preserving the adherens junction (vascular endothelial-cadherin) and tight junctions (junctional adhesion molecule-A and claudin). In vitro studies on primary mouse thoracic SMCs and human primary aortic SMCs and endothelial cells (±ADAM17 small interfering RNA) confirmed the cell-specific functions of ADAM17 and demonstrated the cross-species validity of these findings. To determine the impact of ADAM17 inhibition in treating TAA, we used an ADAM17-selective inhibitor (PF-548) before or 3 days after TAA induction. In both cases, ADAM17 inhibition prevented progression of aneurysmal growth. CONCLUSIONS We have identified distinct cell-specific functions of ADAM17 in TAA progression, promoting pathological remodeling of SMC and impairing integrity of the intimal endothelial cell barrier. The dual impact of ADAM17 deficiency (or inhibition) in protecting 2 major cell types in the aortic wall highlights the unique position of this proteinase as a critical treatment target for TAA.
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Affiliation(s)
- Mengcheng Shen
- From the Department of Physiology (M.S., M.H., Z.K.).,Faculty of Medicine and Dentistry (M.S., M.H., G.Y.O., Z.K.)
| | - Mei Hu
- From the Department of Physiology (M.S., M.H., Z.K.).,Faculty of Medicine and Dentistry (M.S., M.H., G.Y.O., Z.K.)
| | - Paul W M Fedak
- Cardiovascular Research Centre, Mazankowski Alberta Heart Institute, University of Alberta, Edmonton, Canada; Section of Cardiac Surgery, Department of Cardiac Sciences, University of Calgary, Libin Cardiovascular Institute of Alberta, Canada (P.W.M.F.).,Division of Cardiac Surgery, Bluhm Cardiovascular Institute, Northwestern Memorial Hospital, Chicago, IL (P.W.M.F.)
| | - Gavin Y Oudit
- Department of Medicine (G.Y.O.).,Faculty of Medicine and Dentistry (M.S., M.H., G.Y.O., Z.K.)
| | - Zamaneh Kassiri
- From the Department of Physiology (M.S., M.H., Z.K.) .,Faculty of Medicine and Dentistry (M.S., M.H., G.Y.O., Z.K.)
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42
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Dautova Y, Kapustin AN, Pappert K, Epple M, Okkenhaug H, Cook SJ, Shanahan CM, Bootman MD, Proudfoot D. Calcium phosphate particles stimulate interleukin-1β release from human vascular smooth muscle cells: A role for spleen tyrosine kinase and exosome release. J Mol Cell Cardiol 2018; 115:82-93. [PMID: 29274344 PMCID: PMC5823844 DOI: 10.1016/j.yjmcc.2017.12.007] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2017] [Revised: 12/18/2017] [Accepted: 12/19/2017] [Indexed: 12/16/2022]
Abstract
AIMS Calcium phosphate (CaP) particle deposits are found in several inflammatory diseases including atherosclerosis and osteoarthritis. CaP, and other forms of crystals and particles, can promote inflammasome formation in macrophages leading to caspase-1 activation and secretion of mature interleukin-1β (IL-1β). Given the close association of small CaP particles with vascular smooth muscle cells (VSMCs) in atherosclerotic fibrous caps, we aimed to determine if CaP particles affected pro-inflammatory signalling in human VSMCs. METHODS AND RESULTS Using ELISA to measure IL-1β release from VSMCs, we demonstrated that CaP particles stimulated IL-1β release from proliferating and senescent human VSMCs, but with substantially greater IL-1β release from senescent cells; this required caspase-1 activity but not LPS-priming of cells. Potential inflammasome agonists including ATP, nigericin and monosodium urate crystals did not stimulate IL-1β release from VSMCs. Western blot analysis demonstrated that CaP particles induced rapid activation of spleen tyrosine kinase (SYK) (increased phospho-Y525/526). The SYK inhibitor R406 reduced IL-1β release and caspase-1 activation in CaP particle-treated VSMCs, indicating that SYK activation occurs upstream of and is required for caspase-1 activation. In addition, IL-1β and caspase-1 colocalised in intracellular endosome-like vesicles and we detected IL-1β in exosomes isolated from VSMC media. Furthermore, CaP particle treatment stimulated exosome secretion by VSMCs in a SYK-dependent manner, while the exosome-release inhibitor spiroepoxide reduced IL-1β release. CONCLUSIONS CaP particles stimulate SYK and caspase-1 activation in VSMCs, leading to the release of IL-1β, at least in part via exosomes. These novel findings in human VSMCs highlight the pro-inflammatory and pro-calcific potential of microcalcification.
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Affiliation(s)
- Yana Dautova
- Signalling Programme, Babraham Institute, Babraham, Cambridge CB22 3AT, UK
| | - Alexander N Kapustin
- Cardiovascular Division, James Black Centre, King's College London,125 Coldharbour Lane, London SE5 9NU, UK
| | - Kevin Pappert
- Inorganic Chemistry and Center for Nanointegration Duisburg-Essen (CeNIDE), University of Essen-Duisburg, Essen 45117, Germany
| | - Matthias Epple
- Inorganic Chemistry and Center for Nanointegration Duisburg-Essen (CeNIDE), University of Essen-Duisburg, Essen 45117, Germany
| | - Hanneke Okkenhaug
- Signalling Programme, Babraham Institute, Babraham, Cambridge CB22 3AT, UK
| | - Simon J Cook
- Signalling Programme, Babraham Institute, Babraham, Cambridge CB22 3AT, UK
| | - Catherine M Shanahan
- Cardiovascular Division, James Black Centre, King's College London,125 Coldharbour Lane, London SE5 9NU, UK
| | - Martin D Bootman
- School of Life, Health and Chemical Sciences, The Open University, Milton Keynes MK7 6AA, UK
| | - Diane Proudfoot
- Signalling Programme, Babraham Institute, Babraham, Cambridge CB22 3AT, UK.
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