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Szafron JM, Heng EE, Boyd J, Humphrey JD, Marsden AL. Hemodynamics and Wall Mechanics of Vascular Graft Failure. Arterioscler Thromb Vasc Biol 2024; 44:1065-1085. [PMID: 38572650 PMCID: PMC11043008 DOI: 10.1161/atvbaha.123.318239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Accepted: 03/12/2024] [Indexed: 04/05/2024]
Abstract
Blood vessels are subjected to complex biomechanical loads, primarily from pressure-driven blood flow. Abnormal loading associated with vascular grafts, arising from altered hemodynamics or wall mechanics, can cause acute and progressive vascular failure and end-organ dysfunction. Perturbations to mechanobiological stimuli experienced by vascular cells contribute to remodeling of the vascular wall via activation of mechanosensitive signaling pathways and subsequent changes in gene expression and associated turnover of cells and extracellular matrix. In this review, we outline experimental and computational tools used to quantify metrics of biomechanical loading in vascular grafts and highlight those that show potential in predicting graft failure for diverse disease contexts. We include metrics derived from both fluid and solid mechanics that drive feedback loops between mechanobiological processes and changes in the biomechanical state that govern the natural history of vascular grafts. As illustrative examples, we consider application-specific coronary artery bypass grafts, peripheral vascular grafts, and tissue-engineered vascular grafts for congenital heart surgery as each of these involves unique circulatory environments, loading magnitudes, and graft materials.
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Affiliation(s)
- Jason M Szafron
- Departments of Pediatrics (J.M.S., A.L.M.), Stanford University, CA
| | - Elbert E Heng
- Cardiothoracic Surgery (E.E.H., J.B.), Stanford University, CA
| | - Jack Boyd
- Cardiothoracic Surgery (E.E.H., J.B.), Stanford University, CA
| | - Jay D Humphrey
- Department of Biomedical Engineering, Yale University, New Haven, CT (J.D.H.)
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Russu E, Arbanasi EM, Chirila TV, Muresan AV. Therapeutic strategies based on non-ionizing radiation to prevent venous neointimal hyperplasia: the relevance for stenosed arteriovenous fistula, and the role of vascular compliance. Front Cardiovasc Med 2024; 11:1356671. [PMID: 38374996 PMCID: PMC10875031 DOI: 10.3389/fcvm.2024.1356671] [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: 12/18/2023] [Accepted: 01/23/2024] [Indexed: 02/21/2024] Open
Abstract
We have reviewed the development and current status of therapies based on exposure to non-ionizing radiation (with a photon energy less than 10 eV) aimed at suppressing the venous neointimal hyperplasia, and consequentially at avoiding stenosis in arteriovenous grafts. Due to the drawbacks associated with the medical use of ionizing radiation, prominently the radiation-induced cardiovascular disease, the availability of procedures using non-ionizing radiation is becoming a noteworthy objective for the current research. Further, the focus of the review was the use of such procedures for improving the vascular access function and assuring the clinical success of arteriovenous fistulae in hemodialysis patients. Following a brief discussion of the physical principles underlying radiotherapy, the current methods based on non-ionizing radiation, either in use or under development, were described in detail. There are currently five such techniques, including photodynamic therapy (PDT), far-infrared therapy, photochemical tissue passivation (PTP), Alucent vascular scaffolding, and adventitial photocrosslinking. The last three are contingent on the mechanical stiffening achievable by the exogenous photochemical crosslinking of tissular collagen, a process that leads to the decrease of venous compliance. As there are conflicting opinions on the role of compliance mismatch between arterial and venous conduits in a graft, this aspect was also considered in our review.
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Affiliation(s)
- Eliza Russu
- Clinic of Vascular Surgery, Mures County Emergency Hospital, Targu Mures, Romania
- Department of Vascular Surgery, George Emil Palade University of Medicine, Pharmacy, Sciences and Technology of Targu Mures, Targu Mures, Romania
| | - Emil-Marian Arbanasi
- Clinic of Vascular Surgery, Mures County Emergency Hospital, Targu Mures, Romania
- Department of Vascular Surgery, George Emil Palade University of Medicine, Pharmacy, Sciences and Technology of Targu Mures, Targu Mures, Romania
- Doctoral School of Medicine and Pharmacy, George Emil Palade University of Medicine, Pharmacy, Sciences and Technology of Targu Mures, Targu Mures, Romania
- Centre for Advanced Medical and Pharmaceutical Research (CCAMF), George Emil Palade University of Medicine, Pharmacy, Sciences and Technology of Targu Mures, Targu Mures, Romania
| | - Traian V. Chirila
- Centre for Advanced Medical and Pharmaceutical Research (CCAMF), George Emil Palade University of Medicine, Pharmacy, Sciences and Technology of Targu Mures, Targu Mures, Romania
- Queensland Eye Institute, Woolloongabba, QLD, Australia
- Faculty of Medicine, George Emil Palade University of Medicine, Pharmacy, Sciences and Technology of Targu Mures, Targu Mures, Romania
- School of Chemistry and Physics, Queensland University of Technology, Brisbane, QLD, Australia
- Australian Institute of Bioengineering and Nanotechnology (AIBN), University of Queensland, St Lucia, QLD, Australia
| | - Adrian V. Muresan
- Clinic of Vascular Surgery, Mures County Emergency Hospital, Targu Mures, Romania
- Department of Vascular Surgery, George Emil Palade University of Medicine, Pharmacy, Sciences and Technology of Targu Mures, Targu Mures, Romania
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Allen BJ, Frye H, Ramanathan R, Caggiano LR, Tabima DM, Chesler NC, Philip JL. Biomechanical and Mechanobiological Drivers of the Transition From PostCapillary Pulmonary Hypertension to Combined Pre-/PostCapillary Pulmonary Hypertension. J Am Heart Assoc 2023; 12:e028121. [PMID: 36734341 PMCID: PMC9973648 DOI: 10.1161/jaha.122.028121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Combined pre-/postcapillary pulmonary hypertension (Cpc-PH), a complication of left heart failure, is associated with higher mortality rates than isolated postcapillary pulmonary hypertension alone. Currently, knowledge gaps persist on the mechanisms responsible for the progression of isolated postcapillary pulmonary hypertension (Ipc-PH) to Cpc-PH. Here, we review the biomechanical and mechanobiological impact of left heart failure on pulmonary circulation, including mechanotransduction of these pathological forces, which lead to altered biological signaling and detrimental remodeling, driving the progression to Cpc-PH. We focus on pathologically increased cyclic stretch and decreased wall shear stress; mechanotransduction by endothelial cells, smooth muscle cells, and pulmonary arterial fibroblasts; and signaling-stimulated remodeling of the pulmonary veins, capillaries, and arteries that propel the transition from Ipc-PH to Cpc-PH. Identifying biomechanical and mechanobiological mechanisms of Cpc-PH progression may highlight potential pharmacologic avenues to prevent right heart failure and subsequent mortality.
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Affiliation(s)
- Betty J. Allen
- Department of SurgeryUniversity of Wisconsin‐MadisonMadisonWI
| | - Hailey Frye
- Department of Biomedical EngineeringUniversity of Wisconsin‐MadisonMadisonWI
| | - Rasika Ramanathan
- Department of Biomedical EngineeringUniversity of Wisconsin‐MadisonMadisonWI
| | - Laura R. Caggiano
- Edwards Lifesciences Foundation Cardiovascular Innovation and Research Center and Department of Biomedical EngineeringUniversity of CaliforniaIrvineCA
| | - Diana M. Tabima
- Department of Biomedical EngineeringUniversity of Wisconsin‐MadisonMadisonWI
| | - Naomi C. Chesler
- Department of Biomedical EngineeringUniversity of Wisconsin‐MadisonMadisonWI
- Edwards Lifesciences Foundation Cardiovascular Innovation and Research Center and Department of Biomedical EngineeringUniversity of CaliforniaIrvineCA
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Zhong YX, Zhou CC, Zheng YF, Dai HK, Chen RY, Wang YR, Zhan CY, Luo JL, Xie AN. Endoplasmic Reticulum Stress-induced Endothelial Dysfunction Promotes Neointima Formation after Arteriovenous Grafts in Mice on High-fat Diet. Curr Med Sci 2023; 43:115-122. [PMID: 36640244 DOI: 10.1007/s11596-022-2663-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2022] [Accepted: 09/03/2022] [Indexed: 01/15/2023]
Abstract
OBJECTIVE Endothelial dysfunction is one candidate for triggering neointima formation after arteriovenous grafts (AVGs), but the factors mediating this process are unclear. The purpose of this study was to investigate the role of endoplasmic reticulum stress (ERS)-induced endothelial dysfunction in neointima formation following AVGs in high-fat diet (HFD) mice. METHODS CCAAT-enhancer-binding protein-homologous protein (CHOP) knockout (KO) mice were created. Mice were fed with HFD to produce HFD model. AVGs model were applied in the groups of WT ND, WT HFD, and CHOP KO HFD. Human umbilical vein endothelial cells (HUVECs) were cultured with oxidized low density lipoprotein (ox-LDL) (40 mg/L) for the indicated time lengths (0, 6, 12, 24 h). ERS inhibitor tauroursodeoxycholic acid (TUDCA) was used to block ERS. Immunohistochemical staining was used to observe the changes of ICAM1. Changes of ERS were detected by real-time RT-PCR. Protein expression levels and ERS activation were detected by Western blotting. Endothellial cell function was determined by endothelial permeability assay and transendothelial migration assay. RESULTS HFD increased neointima formation in AVGs associated with endothelial dysfunction. At the same time, ERS was increased in endothelial cells (ECs) after AVGs in mice consuming the HFD. In vitro, ox-LDL was found to stimulate ERS, increase the permeability of the EC monolayer, and cause endothelial dysfunction. Blocking ERS with TUDCA or CHOP siRNA reversed the EC dysfunction caused by ox-LDL. In vivo, knockout of CHOP (CHOP KO) protected the function of ECs and decreased neointima formation after AVGs in HFD mice. CONCLUSION Inhibiting ERS in ECs could improve the function of AVGs.
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Affiliation(s)
- Yan-Xia Zhong
- Emergency and Intensive Care Unit, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Chen-Chen Zhou
- Emergency and Intensive Care Unit, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Ying-Fang Zheng
- Emergency and Intensive Care Unit, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Hong-Kai Dai
- Emergency and Intensive Care Unit, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Ren-Yu Chen
- Emergency and Intensive Care Unit, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Yu-Rou Wang
- Emergency and Intensive Care Unit, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Cheng-Ye Zhan
- Emergency and Intensive Care Unit, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Jin-Long Luo
- Emergency and Intensive Care Unit, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Ai-Ni Xie
- Divison of Cardiothoracic and Vascular Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China.
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Déglise S, Bechelli C, Allagnat F. Vascular smooth muscle cells in intimal hyperplasia, an update. Front Physiol 2023; 13:1081881. [PMID: 36685215 PMCID: PMC9845604 DOI: 10.3389/fphys.2022.1081881] [Citation(s) in RCA: 24] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Accepted: 12/12/2022] [Indexed: 01/05/2023] Open
Abstract
Arterial occlusive disease is the leading cause of death in Western countries. Core contemporary therapies for this disease include angioplasties, stents, endarterectomies and bypass surgery. However, these treatments suffer from high failure rates due to re-occlusive vascular wall adaptations and restenosis. Restenosis following vascular surgery is largely due to intimal hyperplasia. Intimal hyperplasia develops in response to vessel injury, leading to inflammation, vascular smooth muscle cells dedifferentiation, migration, proliferation and secretion of extra-cellular matrix into the vessel's innermost layer or intima. In this review, we describe the current state of knowledge on the origin and mechanisms underlying the dysregulated proliferation of vascular smooth muscle cells in intimal hyperplasia, and we present the new avenues of research targeting VSMC phenotype and proliferation.
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Affiliation(s)
| | | | - Florent Allagnat
- Department of Vascular Surgery, Lausanne University Hospital, Lausanne, Switzerland
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Guo Q, Chen G, Cheng H, Qing Y, Truong L, Ma Q, Wang Y, Cheng J. Temporal regulation of notch activation improves arteriovenous fistula maturation. J Transl Med 2022; 20:543. [PMID: 36419038 PMCID: PMC9682688 DOI: 10.1186/s12967-022-03727-7] [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: 08/23/2022] [Accepted: 10/23/2022] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND Arteriovenous fistula (AVF) maturation is a process involving remodeling of venous arm of the AVFs. It is a challenge to balance adaptive AVF remodeling and neointima formation. In this study we temporally controlled Notch activation to promote AVF maturation while avoiding neointima formation. METHODS Temporal Notch activation was controlled by regulating the expression of Notch transcription factor, RBP-Jκ, or dnMAML1 (dominant negative MAML2) in vascular smooth muscle cells (VSMCs). AVF mouse model was created and VSMC phenotype dynamic changes during AVF remodeling were determined. RESULTS Activated Notch was found in the nuclei of neointimal VSMCs in AVFs from uremic mice. We found that the VSMCs near the anastomosis became dedifferentiated and activated after AVF creation. These dedifferentiated VSMCs regained smooth muscle contractile markers later during AVF remodeling. However, global or VSMC-specific KO of RBP-Jκ at early stage (before or 1 week after AVF surgery) blocked VSMC differentiation and neointima formation in AVFs. These un-matured AVFs showed less intact endothelium and increased infiltration of inflammatory cells. Consequently, the VSMC fate in the neointima was completely shut down, leading to an un-arterialized AVF. In contrast, KO of RBP-Jκ at late stage (3 weeks after AVF surgery), it could not block neointima formation and vascular stenosis. Inhibition of Notch activation at week 1 or 2, could maintain VSMC contractile markers expression and facilitate AVF maturation. CONCLUSIONS This work uncovers the molecular and cellular events in each segment of AVF remodeling and found that neither sustained increasing nor blocking of Notch signaling improves AVF maturation. It highlights a novel strategy to improve AVF patency: temporally controlled Notch activation can achieve a balance between adaptive AVF remodeling and neointima formation to improve AVF maturation. TRANSLATIONAL PERSPECTIVE Adaptive vascular remodeling is required for AVF maturation. The balance of wall thickening of the vein and neointima formation in AVF determines the fate of AVF function. Sustained activation of Notch signaling in VSMCs promotes neointima formation, while deficiency of Notch signaling at early stage during AVF remodeling prevents VSMC accumulation and differentiation from forming a functional AVFs. These responses also delay EC regeneration and impair EC barrier function with increased inflammation leading to failed vascular remodeling of AVFs. Thus, a strategy to temporal regulate Notch activation will improve AVF maturation.
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Affiliation(s)
- Qunying Guo
- grid.12981.330000 0001 2360 039XDepartment of Nephrology, Key Laboratory of Nephrology, The First Affiliated Hospital, Sun Yat-sen University, Ministry of Health and Guangdong Province, Guangzhou, China ,grid.39382.330000 0001 2160 926XSection of Nephrology, Department of Medicine, Selzman Institute for Kidney Health, Baylor College of Medicine, Houston, TX 77030 USA
| | - Guang Chen
- grid.39382.330000 0001 2160 926XSection of Nephrology, Department of Medicine, Selzman Institute for Kidney Health, Baylor College of Medicine, Houston, TX 77030 USA ,grid.33199.310000 0004 0368 7223 Department of Integrated Traditional Chinese and Western Medicine, Tongji Medical College, Huangzhong University of Science and Technology, Wuhan, China
| | - Hunter Cheng
- grid.240145.60000 0001 2291 4776Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030 USA
| | - Ying Qing
- grid.39382.330000 0001 2160 926XSection of Nephrology, Department of Medicine, Selzman Institute for Kidney Health, Baylor College of Medicine, Houston, TX 77030 USA
| | - Luan Truong
- grid.63368.380000 0004 0445 0041Department of Pathology, Houston Methodist Hospital, Houston, TX 77030 USA
| | - Quan Ma
- grid.39382.330000 0001 2160 926XSection of Nephrology, Department of Medicine, Selzman Institute for Kidney Health, Baylor College of Medicine, Houston, TX 77030 USA
| | - Yun Wang
- grid.39382.330000 0001 2160 926XSection of Nephrology, Department of Medicine, Selzman Institute for Kidney Health, Baylor College of Medicine, Houston, TX 77030 USA
| | - Jizhong Cheng
- grid.39382.330000 0001 2160 926XSection of Nephrology, Department of Medicine, Selzman Institute for Kidney Health, Baylor College of Medicine, Houston, TX 77030 USA
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Song L, Feng Y, Tian F, Liu X, Jin S, Wang C, Tang W, Duan J, Guo N, Shen X, Hu J, Zou H, Gu W, Liu K, Pang L. Integrated Microarray for Identifying the Hub mRNAs and Constructed MiRNA-mRNA Network in Coronary In-stent Restenosis. Physiol Genomics 2022; 54:371-379. [PMID: 35968900 DOI: 10.1152/physiolgenomics.00089.2021] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
As a major complication after percutaneous coronary intervention (PCI) in patients who suffer from coronary artery disease, in-stent restenosis (ISR) poses a significant challenge for clinical management. A miRNA-mRNA regulatory network of ISR can be constructed to better reveal the occurrence of ISR. The relevant dataset from the Gene Expression Omnibus (GEO) database was downloaded, and 284 differentially expressed miRNAs (DE-miRNAs) and 849 differentially expressed mRNAs (DE-mRNAs) were identified. As predicted by online tools, 65 final functional genes (FmRNAs) were overlapping DE-mRNAs and DE-miRNAs target genes. In the biological process (BP) terms of Gene Ontology (GO) functional analysis, the FmRNAs were mainly enriched in cellular response to peptide, epithelial cell proliferation and response to peptide hormone. In the Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis, the FmRNAs were mainly enriched in breast cancer, endocrine resistance and cushing syndrome. Jun Proto-Oncogene, AP-1 Transcription Factor Subunit (JUN), Insulin Like Growth Factor 1 Receptor (IGF1R), Member RAS Oncogene Family (RAB14), Specificity Protein 1 (SP1), Protein Tyrosine Phosphatase Non-Receptor Type1(PTPN1), DDB1 And CUL4 Associated Factor 10 (DCAF10), Retinoblastoma-Binding Protein 5 (RBBP5) and Eukaryotic Initiation Factor 4A-I (EIF4A1) were hub genes in the protein-protein interaction network (PPI network). The miRNA-mRNA network containing DE-miRNA and hub genes was built. Hsa-miR-139-5p-JUN, hsa-miR-324-5p-SP1 axis pairs were found in the miRNA-mRNA network, which could promote ISR development. The above results indicate that the miRNA-mRNA network constructed in ISR has a regulatory role in the development of ISR, and may provide new approaches for clinical treatment and experimental development.
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Affiliation(s)
- Linghong Song
- Department of Pathology and Key Laboratory for Xinjiang Endemic and Ethnic Diseases, Shihezi University School of Medicine, NHC Key Laboratory of Prevention and Treatment of Central Asia High Incidence Diseases (First Affiliated Hospital, School of Medicine, Shihezi University);Department of Pathology and Key Laboratory for Xinjiang Endemic and Ethnic Diseases, Shihezi University School of Medicine, Shihezi, Xinjiang, China
| | - Yufei Feng
- Department of Pathology and Key Laboratory for Xinjiang Endemic and Ethnic Diseases, Shihezi University School of Medicine, NHC Key Laboratory of Prevention and Treatment of Central Asia High Incidence Diseases (First Affiliated Hospital, School of Medicine, Shihezi University); Department of Pathology and Key Laboratory for Xinjiang Endemic and Ethnic Diseases, Shihezi University School of Medicine, Shihezi, China
| | - Feng Tian
- Department of neurology, The First Affiliated Hospital, Shihezi University School of Medicine, Shihezi, 832002, Xinjiang, China, Department of neurology, The First Affiliated Hospital, Shihezi University School of Medicine, Shihezi, 832002, Xinjiang, China, Shihezi, China
| | - Xiaoang Liu
- Shihezi University School of Pharmacy, Shihezi , China
| | - Shan Jin
- Department of Pathology and Key Laboratory for Xinjiang Endemic and Ethnic Diseases, Shihezi University School of Medicine, NHC Key Laboratory of Prevention and Treatment of Central Asia High Incidence Diseases (First Affiliated Hospital, School of Medicine,Shihezi University); Department of Pathology and Key Laboratory for Xinjiang Endemic and Ethnic Diseases, Shihezi University School of Medicine, Shihezi, Xinjiang, China
| | - Chengyan Wang
- Shihezi University School of Medicine, NHC Key Laboratory of Prevention and Treatment of Central Asia High Incidence Diseases (First Affiliated Hospital, School of Medicine, Shihezi University) / Department of Pathology and Key Laborator, Shihezi, China, China
| | - Wuyue Tang
- Department of Pathology and Key Laboratory for Xinjiang Endemic and Ethnic Diseases, Shihezi University School of Medicine, NHC Key Laboratory of Prevention and Treatment of Central Asia High Incidence Diseases (First Affiliated Hospital, School of Medicine, Shihezi University); Department of Pathology and Key Laboratory for Xinjiang Endemic and Ethnic Diseases, Shihezi University School of Medicine, Shihezi, China
| | - Juncang Duan
- grid.452555.6Department of Cardiology, Jinhua Municipal Central Hospital, Jinhua, China
| | - Na Guo
- NHC Key Laboratory of Prevention and Treatment of Central Asia High Incidence Diseases (First Affiliated Hospital, School of Medicine, Shihezi University); Department of Pathology and Key Laboratory, Shihezi, China
| | - Xihua Shen
- grid.411680.aNHC Key Laboratory of Prevention and Treatment of Central Asia High Incidence Diseases (First Affiliated Hospital, School of Medicine, Shihezi University); Department of Pathology and Key Laboratory for Xinjiang Endemic and Ethnic Diseases, Shihezi University School of Medicine, Shihezi, China
| | - Jianming Hu
- grid.411680.aNHC Key Laboratory of Prevention and Treatment of Central Asia High Incidence Diseases (First Affiliated Hospital, School of Medicine, Shihezi University); Department of Pathology and Key Laboratory for Xinjiang Endemic and Ethnic Diseases, Shihezi University School of Medicine, Shihezi, China
| | - Hong Zou
- grid.411680.aNHC Key Laboratory of Prevention and Treatment of Central Asia High Incidence Diseases (First Affiliated Hospital, School of Medicine, Shihezi University); Department of Pathology and Key Laboratory for Xinjiang Endemic and Ethnic Diseases, Shihezi University School of Medicine, Shihezi, China
| | - Wenyi Gu
- Australian Institute for Bioengineering and Nanotechnology, the University of Queensland, St Lucia, Australia
| | - Kejian Liu
- grid.411680.aDepartment of Cardiology, The First Affiliated Hospital, Shihezi University School of Medicine, Shihezi, China
| | - Lijuan Pang
- NHC Key Laboratory of Prevention and Treatment of Central Asia High Incidence Diseases (First Affiliated Hospital, School of Medicine, Shihezi University); Department of Pathology and Key Laboratory, NHC Key Laboratory of Prevention and Treatment of Central Asia High Incidence Diseases (First Affiliated Hospital, School of Medicine, Shihezi University); Department of Pathology and Key Laboratory for Xinjiang Endemic and Ethnic Diseases, Shihezi University School of Medicine, Shihezi, Xinjiang, China
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Liu JT, Yao QP, Chen Y, Lv F, Liu Z, Bao H, Han Y, Zhang ML, Jiang ZL, Qi YX. Arterial cyclic stretch regulates Lamtor1 and promotes neointimal hyperplasia via circSlc8a1/miR-20a-5p axis in vein grafts. Am J Cancer Res 2022; 12:4851-4865. [PMID: 35836818 PMCID: PMC9274756 DOI: 10.7150/thno.69551] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Accepted: 06/03/2022] [Indexed: 01/12/2023] Open
Abstract
Rationale: Neointimal hyperplasia caused by dedifferentiation and proliferation of venous smooth muscle cells (SMCs) is the major challenge for restenosis after coronary artery bypass graft. Herein, we investigated the role of Lamtor1 in neointimal formation and the regulatory mechanism of non-coding RNA underlying this process. Methods: Using a "cuff" model, veins were grafted into arterial system and Lamtor1 expression which was correlated with the activation of mTORC1 signaling and dedifferentiation of SMCs, were measured by Western blot. Whole transcriptome deep sequencing (RNA-seq) of the grafted veins combined with bioinformatic analysis identified highly conserved circSlc8a1 and its interaction with miR-20a-5p, which may target Lamtor1. CircSlc8a1 was biochemically characterized by Sanger sequencing and resistant to RNase R digestion. The cytoplasmic location of circSlc8a1 was shown by fluorescence in situ hybridization (FISH). RNA pull-down, luciferase assays and RNA immunoprecipitation (RIP) with Ago2 assays were used to identify the interaction circSlc8a1 with miR-20a-5p. Furthermore, arterial mechanical stretch (10% elongation) was applied in vitro. Results:In vivo, Lamtor1 was significantly enhanced in grafted vein and activated mTORC1 signaling to promote dedifferentiation of SMCs. Arterial mechanical stretch (10% elongation) induced circSlc8a1 expression and positively regulated Lamtor1, activated mTORC1 and promoted SMC dedifferentiation and proliferation. Local injection of circSlc8a1 siRNA or SMC-specific Lamtor1 knockout mice prevented neointimal hyperplasia in vein grafts in vivo. Conclusions: Our study reveals a novel mechanobiological mechanism underlying the dedifferentiation and proliferation of venous SMCs in neointimal hyperplasia. CircSlc81/miR-20a-5p/Lamtor1 axis induced by arterial cyclic stretch may be a potential clinical target that attenuates neointimal hyperplasia in grafted vessels.
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Affiliation(s)
- Ji-Ting Liu
- Institute of Mechanobiology & Medical Engineering, School of Life Sciences & Biotechnology, Shanghai Jiao Tong University, Shanghai, China
| | - Qing-Ping Yao
- Institute of Mechanobiology & Medical Engineering, School of Life Sciences & Biotechnology, Shanghai Jiao Tong University, Shanghai, China
| | - Yi Chen
- Institute of Mechanobiology & Medical Engineering, School of Life Sciences & Biotechnology, Shanghai Jiao Tong University, Shanghai, China
| | - Fan Lv
- Department of Pediatric Surgery, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200092, China
| | - Ze Liu
- Institute of Mechanobiology & Medical Engineering, School of Life Sciences & Biotechnology, Shanghai Jiao Tong University, Shanghai, China
| | - Han Bao
- Institute of Mechanobiology & Medical Engineering, School of Life Sciences & Biotechnology, Shanghai Jiao Tong University, Shanghai, China
| | - Yue Han
- Institute of Mechanobiology & Medical Engineering, School of Life Sciences & Biotechnology, Shanghai Jiao Tong University, Shanghai, China
| | - Ming-Liang Zhang
- Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Diabetes Institute, Shanghai Clinical Center for Diabetes, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Key Clinical Center for Metabolic Disease, Shanghai, China.,✉ Corresponding authors: Dr. Ying-Xin Qi, Institute of Mechanobiology & Medical Engineering, School of Life Sciences & Biotechnology, Shanghai Jiao Tong University, 800 Dongchuan Road, Minhang, Shanghai 200240, China. Tel.: +86-21-34204863, Fax: +86-21-34204118, E-mail: ; Dr. Zong-Lai Jiang, Institute of Mechanobiology & Medical Engineering, School of Life Sciences & Biotechnology, Shanghai Jiao Tong University, 800 Dongchuan Road, Minhang, Shanghai 200240, China. Tel.: +86-21-34204863, Fax: +86-21-34204118, E-mail: ; Dr. Ming-Liang Zhang, Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Diabetes Institute, Shanghai Clinical Center for Diabetes, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Key Clinical Center for Metabolic Disease, 600 Yishan Road, Xuhui, Shanghai 200233 China. Tel.: +86-21-24058337, Fax: +86-21-24058337, E-mail:
| | - Zong-Lai Jiang
- Institute of Mechanobiology & Medical Engineering, School of Life Sciences & Biotechnology, Shanghai Jiao Tong University, Shanghai, China.,✉ Corresponding authors: Dr. Ying-Xin Qi, Institute of Mechanobiology & Medical Engineering, School of Life Sciences & Biotechnology, Shanghai Jiao Tong University, 800 Dongchuan Road, Minhang, Shanghai 200240, China. Tel.: +86-21-34204863, Fax: +86-21-34204118, E-mail: ; Dr. Zong-Lai Jiang, Institute of Mechanobiology & Medical Engineering, School of Life Sciences & Biotechnology, Shanghai Jiao Tong University, 800 Dongchuan Road, Minhang, Shanghai 200240, China. Tel.: +86-21-34204863, Fax: +86-21-34204118, E-mail: ; Dr. Ming-Liang Zhang, Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Diabetes Institute, Shanghai Clinical Center for Diabetes, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Key Clinical Center for Metabolic Disease, 600 Yishan Road, Xuhui, Shanghai 200233 China. Tel.: +86-21-24058337, Fax: +86-21-24058337, E-mail:
| | - Ying-Xin Qi
- Institute of Mechanobiology & Medical Engineering, School of Life Sciences & Biotechnology, Shanghai Jiao Tong University, Shanghai, China.,✉ Corresponding authors: Dr. Ying-Xin Qi, Institute of Mechanobiology & Medical Engineering, School of Life Sciences & Biotechnology, Shanghai Jiao Tong University, 800 Dongchuan Road, Minhang, Shanghai 200240, China. Tel.: +86-21-34204863, Fax: +86-21-34204118, E-mail: ; Dr. Zong-Lai Jiang, Institute of Mechanobiology & Medical Engineering, School of Life Sciences & Biotechnology, Shanghai Jiao Tong University, 800 Dongchuan Road, Minhang, Shanghai 200240, China. Tel.: +86-21-34204863, Fax: +86-21-34204118, E-mail: ; Dr. Ming-Liang Zhang, Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Diabetes Institute, Shanghai Clinical Center for Diabetes, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Key Clinical Center for Metabolic Disease, 600 Yishan Road, Xuhui, Shanghai 200233 China. Tel.: +86-21-24058337, Fax: +86-21-24058337, E-mail:
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9
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Tang Y, Jia Y, Fan L, Liu H, Zhou Y, Wang M, Liu Y, Zhu J, Pang W, Zhou J. MFN2 Prevents Neointimal Hyperplasia in Vein Grafts via Destabilizing PFK1. Circ Res 2022; 130:e26-e43. [PMID: 35450439 DOI: 10.1161/circresaha.122.320846] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND Mechanical forces play crucial roles in neointimal hyperplasia after vein grafting; yet, our understanding of their influences on vascular smooth muscle cell (VSMC) activation remains rudimentary. METHODS A cuff mouse model was used to study vein graft hyperplasia. Fifteen percent to 1 Hz uniaxial cyclic stretch (arterial strain), 5% to 1 Hz uniaxial cyclic stretch or a static condition (venous strain) were applied to the cultured VSMCs. Metabolomics analysis, cell proliferation and migration assays, immunoblotting, co-immunoprecipitation, mutagenesis, pull-down and surface plasmon resonance assays were employed to elucidate the potential molecular mechanisms. RESULTS RNA-sequencing in vein grafts and the controls identified changes in metabolic pathways and downregulation of mitochondrial protein MFN2 (mitofusin 2) in the vein grafts. Exposure of VSMCs to 15% stretch resulted in MFN2 downregulation, mitochondrial fragmentation, metabolic shift from mitochondrial oxidative phosphorylation to glycolysis, and cell proliferation and migration, as compared with that to a static condition or 5% stretch. Metabolomics analysis indicated an increased generation of fructose 1,6-bisphosphate, an intermediate in the glycolytic pathway converted by PFK1 (phosphofructokinase 1) from fructose-6-phosphate, in cells exposed to 15% stretch. Mechanistic study revealed that MFN2 physically interacts through its C-terminus with PFK1. MFN2 knockdown or exposure of cells to 15% stretch promoted stabilization of PFK1, likely through interfering the association between PFK1 and the E3 ubiquitin ligase TRIM21 (E3 ubiquitin ligase tripartite motif [TRIM]-containing protein 21), thus, decreasing the ubiquitin-protease-dependent PFK1 degradation. In addition, study of mechanotransduction utilizing pharmaceutical inhibition indicated that the MFN2 downregulation by 15% stretch was dependent on inactivation of the SP1 (specificity protein 1) and activation of the JNK (c-Jun N-terminal kinase) and ROCK (Rho-associated protein kinase). Adenovirus-mediated MFN2 overexpression or pharmaceutical inhibition of PFK1 suppressed the 15% stretch-induced VSMC proliferation and migration and alleviated neointimal hyperplasia in vein grafts. CONCLUSIONS MFN2 is a mechanoresponsive protein that interacts with PFK1 to mediate PFK1 degradation and therefore suppresses glycolysis in VSMCs.
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Affiliation(s)
- Yuanjun Tang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing, China. (Y.T., Y.J., L.F., H.L., Y.L., J.Z., W.P., J.Z.).,(Hemorheology Center, School of Basic Medical Sciences, Peking University, Beijing, China. (Y.T., Y.J., L.F., H.L., Y.L., J.Z., W.P., J.Z.).,Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China (Y.T., Y.J., L.F., H.L., Y.Z., Y.L., J. Zhu, J. Zhou).,National Health Commission Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides (Y.T., L.F., H.L., Y.L., J. Zhu, J. Zhou).,Beijing Key Laboratory of Cardiovascular Receptors Research, Peking University, China (Y.T., L.F., H.L., Y.L., J. Zhu, J. Zhou)
| | - Yiting Jia
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing, China. (Y.T., Y.J., L.F., H.L., Y.L., J.Z., W.P., J.Z.).,(Hemorheology Center, School of Basic Medical Sciences, Peking University, Beijing, China. (Y.T., Y.J., L.F., H.L., Y.L., J.Z., W.P., J.Z.).,Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China (Y.T., Y.J., L.F., H.L., Y.Z., Y.L., J. Zhu, J. Zhou)
| | - Linwei Fan
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing, China. (Y.T., Y.J., L.F., H.L., Y.L., J.Z., W.P., J.Z.).,(Hemorheology Center, School of Basic Medical Sciences, Peking University, Beijing, China. (Y.T., Y.J., L.F., H.L., Y.L., J.Z., W.P., J.Z.).,Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China (Y.T., Y.J., L.F., H.L., Y.Z., Y.L., J. Zhu, J. Zhou).,National Health Commission Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides (Y.T., L.F., H.L., Y.L., J. Zhu, J. Zhou).,Beijing Key Laboratory of Cardiovascular Receptors Research, Peking University, China (Y.T., L.F., H.L., Y.L., J. Zhu, J. Zhou)
| | - Han Liu
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing, China. (Y.T., Y.J., L.F., H.L., Y.L., J.Z., W.P., J.Z.).,(Hemorheology Center, School of Basic Medical Sciences, Peking University, Beijing, China. (Y.T., Y.J., L.F., H.L., Y.L., J.Z., W.P., J.Z.).,Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China (Y.T., Y.J., L.F., H.L., Y.Z., Y.L., J. Zhu, J. Zhou).,National Health Commission Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides (Y.T., L.F., H.L., Y.L., J. Zhu, J. Zhou).,Beijing Key Laboratory of Cardiovascular Receptors Research, Peking University, China (Y.T., L.F., H.L., Y.L., J. Zhu, J. Zhou)
| | - Yuan Zhou
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing, China. (Y.T., Y.J., L.F., H.L., Y.L., J.Z., W.P., J.Z.).,Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China (Y.T., Y.J., L.F., H.L., Y.Z., Y.L., J. Zhu, J. Zhou).,Department of Biomedical Informatics, School of Basic Medical Sciences, Peking University, Beijing, China (Y.Z.)
| | - Miao Wang
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China. (M.W.).,Clinical Pharmacology Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China. (M.W.)
| | - Yuefeng Liu
- (Hemorheology Center, School of Basic Medical Sciences, Peking University, Beijing, China. (Y.T., Y.J., L.F., H.L., Y.L., J.Z., W.P., J.Z.).,Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China (Y.T., Y.J., L.F., H.L., Y.Z., Y.L., J. Zhu, J. Zhou).,National Health Commission Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides (Y.T., L.F., H.L., Y.L., J. Zhu, J. Zhou).,Beijing Key Laboratory of Cardiovascular Receptors Research, Peking University, China (Y.T., L.F., H.L., Y.L., J. Zhu, J. Zhou)
| | - Juanjuan Zhu
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing, China. (Y.T., Y.J., L.F., H.L., Y.L., J.Z., W.P., J.Z.).,(Hemorheology Center, School of Basic Medical Sciences, Peking University, Beijing, China. (Y.T., Y.J., L.F., H.L., Y.L., J.Z., W.P., J.Z.).,Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China (Y.T., Y.J., L.F., H.L., Y.Z., Y.L., J. Zhu, J. Zhou).,National Health Commission Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides (Y.T., L.F., H.L., Y.L., J. Zhu, J. Zhou).,Beijing Key Laboratory of Cardiovascular Receptors Research, Peking University, China (Y.T., L.F., H.L., Y.L., J. Zhu, J. Zhou)
| | - Wei Pang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing, China. (Y.T., Y.J., L.F., H.L., Y.L., J.Z., W.P., J.Z.).,(Hemorheology Center, School of Basic Medical Sciences, Peking University, Beijing, China. (Y.T., Y.J., L.F., H.L., Y.L., J.Z., W.P., J.Z.)
| | - Jing Zhou
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing, China. (Y.T., Y.J., L.F., H.L., Y.L., J.Z., W.P., J.Z.).,(Hemorheology Center, School of Basic Medical Sciences, Peking University, Beijing, China. (Y.T., Y.J., L.F., H.L., Y.L., J.Z., W.P., J.Z.).,Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China (Y.T., Y.J., L.F., H.L., Y.Z., Y.L., J. Zhu, J. Zhou).,National Health Commission Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides (Y.T., L.F., H.L., Y.L., J. Zhu, J. Zhou).,Beijing Key Laboratory of Cardiovascular Receptors Research, Peking University, China (Y.T., L.F., H.L., Y.L., J. Zhu, J. Zhou)
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10
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Liu S, Lin Z. Vascular Smooth Muscle Cells Mechanosensitive Regulators and Vascular Remodeling. J Vasc Res 2021; 59:90-113. [PMID: 34937033 DOI: 10.1159/000519845] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Accepted: 09/23/2021] [Indexed: 11/19/2022] Open
Abstract
Blood vessels are subjected to mechanical loads of pressure and flow, inducing smooth muscle circumferential and endothelial shear stresses. The perception and response of vascular tissue and living cells to these stresses and the microenvironment they are exposed to are critical to their function and survival. These mechanical stimuli not only cause morphological changes in cells and vessel walls but also can interfere with biochemical homeostasis, leading to vascular remodeling and dysfunction. However, the mechanisms underlying how these stimuli affect tissue and cellular function, including mechanical stimulation-induced biochemical signaling and mechanical transduction that relies on cytoskeletal integrity, are unclear. This review focuses on signaling pathways that regulate multiple biochemical processes in vascular mesangial smooth muscle cells in response to circumferential stress and are involved in mechanosensitive regulatory molecules in response to mechanotransduction, including ion channels, membrane receptors, integrins, cytoskeletal proteins, nuclear structures, and cascades. Mechanoactivation of these signaling pathways is closely associated with vascular remodeling in physiological or pathophysiological states.
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Affiliation(s)
- Shangmin Liu
- Ji Hua Institute of Biomedical Engineering Technology, Ji Hua Laboratory, Foshan, China, .,Medical Research Center, Guangdong Academy of Medical Sciences, Guangdong General Hospital, Guangzhou, China,
| | - Zhanyi Lin
- Ji Hua Institute of Biomedical Engineering Technology, Ji Hua Laboratory, Foshan, China.,Institute of Geriatric Medicine, Guangdong Academy of Medical Sciences, Guangdong General Hospital, Guangzhou, China
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11
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Childs BG, Zhang C, Shuja F, Sturmlechner I, Trewartha S, Fierro Velasco R, Baker D, Li H, van Deursen JM. Senescent cells suppress innate smooth muscle cell repair functions in atherosclerosis. NATURE AGING 2021; 1:698-714. [PMID: 34746803 PMCID: PMC8570576 DOI: 10.1038/s43587-021-00089-5] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/19/2023]
Abstract
Senescent cells (SNCs) degenerate the fibrous cap that normally prevents atherogenic plaque rupture, a leading cause of myocardial infarction and stroke. Here we explored the underlying mechanism using pharmacological or transgenic approaches to clear SNCs in the Ldlr -/- mouse model of atherosclerosis. SNC clearance reinforced fully deteriorated fibrous caps in highly advanced lesions, as evidenced by restored vascular smooth muscle cell (VSMC) numbers, elastin content, and overall cap thickness. We found that SNCs inhibit VSMC promigratory phenotype switching in the first interfiber space of the arterial wall directly beneath atherosclerotic plaque, thereby limiting lesion entry of medial VSMCs for fibrous cap assembly or reinforcement. SNCs do so by antagonizing IGF-1 through the secretion of insulin-like growth factor-binding protein 3 (Igfbp3). These data indicate that the intermittent use of senolytic agents or IGFBP-3 inhibition in combination with lipid lowering drugs may provide therapeutic benefit in atherosclerosis.
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Affiliation(s)
- Bennett G. Childs
- Department of Pediatric and Adolescent Medicine, Mayo Clinic, Rochester MN, United States
| | - Cheng Zhang
- Department of Molecular Pharmacology and Experimental Therapeutics, Mayo Clinic, Rochester MN, United States
| | - Fahad Shuja
- Division of Vascular and Endovascular Surgery, Mayo Clinic, Rochester MN, United States
| | - Ines Sturmlechner
- Department of Pediatric and Adolescent Medicine, Mayo Clinic, Rochester MN, United States
- Molecular Genetics Section, Department of Pediatrics, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Shawn Trewartha
- Department of Pediatric and Adolescent Medicine, Mayo Clinic, Rochester MN, United States
| | - Raul Fierro Velasco
- Department of Pediatric and Adolescent Medicine, Mayo Clinic, Rochester MN, United States
| | - Darren Baker
- Department of Pediatric and Adolescent Medicine, Mayo Clinic, Rochester MN, United States
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester MN, United States
| | - Hu Li
- Department of Molecular Pharmacology and Experimental Therapeutics, Mayo Clinic, Rochester MN, United States
| | - Jan M. van Deursen
- Department of Pediatric and Adolescent Medicine, Mayo Clinic, Rochester MN, United States
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester MN, United States
- Correspondence:
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12
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Physiological cyclic stretch up-regulates angiotensin-converting enzyme 2 expression to reduce proliferation and migration of vascular smooth muscle cells. Biosci Rep 2021; 40:225043. [PMID: 32463098 PMCID: PMC7295630 DOI: 10.1042/bsr20192012] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Revised: 04/29/2020] [Accepted: 05/13/2020] [Indexed: 12/24/2022] Open
Abstract
Angiotensin-converting enzyme 2 (ACE2) is considered as an endogenous negative regulator of renin–angiotensin system (RAS), exerting multiple cardiovascular protective roles. Whether mechanical stretch modulates ACE2 expression remains unknown. The present study aimed at investigating whether ACE2 is involved in physiological stretch (10% elongation, 1 Hz) mediated cellular functions and the underlying mechanism. Cultured human aortic smooth muscle cells (HASMCs) were exposed to 10% stretch for indicated time, and real-time PCR and Western blot analysis showed 10% stretch increased ACE2 expression and activity significantly compared with static conditions and increased Ang-(1-7) level, but decreased Ang II level; Brdu incorporation assay and Scratch test showed that ACE2 was involved in the inhibition of HASMCs proliferation and migration by 10% stretch; the Dual-Luciferase Reporter Assay demonstrated that 10% increased ACE2 promoter activity, but had no effect on ACE2 mRNA stability; kinase inhibition study and Electrophoretic mobility shift assay (EMSA) showed that JNK1/2 and PKCβII pathway, as well as their downstream transcription factors, AP-1 and NF-κB, were involved in 10% stretch induced ACE2 expression. In conclusion, our study indicates ACE2 is a mechanosensitive gene, and may represent a potential therapeutic target for mechanical forces related vascular diseases.
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13
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Song K, Qing Y, Guo Q, Peden EK, Chen C, Mitch WE, Truong L, Cheng J. PDGFRA in vascular adventitial MSCs promotes neointima formation in arteriovenous fistula in chronic kidney disease. JCI Insight 2020; 5:137298. [PMID: 33001865 PMCID: PMC7710276 DOI: 10.1172/jci.insight.137298] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Accepted: 09/24/2020] [Indexed: 12/16/2022] Open
Abstract
Chronic kidney disease (CKD) induces the failure of arteriovenous fistulas (AVFs) and promotes the differentiation of vascular adventitial GLI1-positive mesenchymal stem cells (GMCs). However, the roles of GMCs in forming neointima in AVFs remain unknown. GMCs isolated from CKD mice showed increased potential capacity of differentiation into myofibroblast-like cells. Increased activation of expression of PDGFRA and hedgehog (HH) signaling were detected in adventitial cells of AVFs from patients with end-stage kidney disease and CKD mice. PDGFRA was translocated and accumulated in early endosome when sonic hedgehog was overexpressed. In endosome, PDGFRA-mediated activation of TGFB1/SMAD signaling promoted the differentiation of GMCs into myofibroblasts, extracellular matrix deposition, and vascular fibrosis. These responses resulted in neointima formation and AVF failure. KO of Pdgfra or inhibition of HH signaling in GMCs suppressed the differentiation of GMCs into myofibroblasts. In vivo, specific KO of Pdgfra inhibited GMC activation and vascular fibrosis, resulting in suppression of neointima formation and improvement of AVF patency despite CKD. Our findings could yield strategies for maintaining AVF functions.
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Affiliation(s)
- Ke Song
- Department of Stomatology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Selzman Institute for Kidney Health, Section of Nephrology, Department of Medicine, Baylor College of Medicine, Houston, Texas, USA
| | - Ying Qing
- Selzman Institute for Kidney Health, Section of Nephrology, Department of Medicine, Baylor College of Medicine, Houston, Texas, USA
| | - Qunying Guo
- Selzman Institute for Kidney Health, Section of Nephrology, Department of Medicine, Baylor College of Medicine, Houston, Texas, USA
| | - Eric K Peden
- Department of Vascular Surgery, DeBakey Heart and Vascular Institute, Houston Methodist Hospital, Houston, Texas, USA
| | - Changyi Chen
- Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, Texas, USA
| | - William E Mitch
- Selzman Institute for Kidney Health, Section of Nephrology, Department of Medicine, Baylor College of Medicine, Houston, Texas, USA
| | - Luan Truong
- Department of Pathology and Genomic Medicine, Houston Methodist Hospital, Houston, Texas, USA
| | - Jizhong Cheng
- Selzman Institute for Kidney Health, Section of Nephrology, Department of Medicine, Baylor College of Medicine, Houston, Texas, USA
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14
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Guo Q, Huang F, Qing Y, Feng S, Xiao X, Wang Y, Liang M, Wang T, Mitch WE, Cheng J. Decreased Jagged1 expression in vascular smooth muscle cells delays endothelial regeneration in arteriovenous graft. Cardiovasc Res 2020; 116:2142-2155. [PMID: 31913453 DOI: 10.1093/cvr/cvz333] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Revised: 10/10/2019] [Accepted: 01/03/2020] [Indexed: 11/12/2022] Open
Abstract
AIMS It is well-established that endothelial dysfunction promotes activation of vascular smooth muscle cell (VSMC). Whether decreased accumulation of VSMCs affects endothelial regeneration and functions in arteriovenous graft (AVG) remodelling has not been studied. We sought to identify mechanisms by which the Notch ligand, Jagged1, in VSMCs regulates endothelial cell (EC) functions in AVGs. METHODS AND RESULTS AVGs were created in transgenic mice bearing VSMC-specific knockout (KO) or overexpression of Jagged1. VSMC migration, EC regeneration, and its barrier functions as well as AVG remodelling were evaluated. Jagged1 expression was induced in VSMCs of neointima in the AVGs. Jagged1 KO in VSMCs inhibited the accumulation of extracellular matrix as well as VSMC migration. Fewer α-SMA-positive VSMCs were found in AVGs created in VSMC-specific Jagged1 KO mice (VSMCJagged1 KO mice) vs. in WT mice. Decreased VSMCs in AVGs were associated with deterioration of EC functions. In AVGs created in transgenic mice bearing Jagged1 KO in VSMCs exhibited delayed EC regeneration and impaired EC barrier function. Barrier dysfunction of ECs increased inflammatory cell infiltration and dysregulation of AVG remodelling and arterialization. The increased expression of IL-1β in macrophages was associated with expression of adhesion markers in ECs in AVGs created in VSMCJagged1 KO mice. In contrast, AVGs created in mice with overexpression of Jagged1 in VSMCs exhibited improved EC regeneration plus decreased macrophage infiltration. This led to AVG remodelling and arterialization. In co-cultures of ECs and VSMCs, Jagged1 deficiency in VSMCs suppressed N-cadherin and integrin β3 expression in ECs. Inhibition of integrin β3 activation delayed EC spreading and migration. Notably, Jagged1 overexpression in VSMCs or treatment with recombinant Jagged1 stimulated the expression of N-cadherin and integrin β3 in ECs. Jagged1-induced responses were blocked by inhibition of Notch signalling. CONCLUSIONS Jagged1 expression in VSMCs maintains EC barrier functions and blocks infiltration of macrophages. These responses promote remodelling and arterialization of AVGs.
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Affiliation(s)
- Qunying Guo
- Department of Nephrology, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou 510080, China.,Section of Nephrology, Department of Medicine, Selzman Institute for Kidney Health, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA
| | - Fengzhang Huang
- Section of Nephrology, Department of Medicine, Selzman Institute for Kidney Health, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA
| | - Ying Qing
- Section of Nephrology, Department of Medicine, Selzman Institute for Kidney Health, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA
| | - Shaozhen Feng
- Section of Nephrology, Department of Medicine, Selzman Institute for Kidney Health, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA
| | - Xiaoguang Xiao
- Section of Nephrology, Department of Medicine, Selzman Institute for Kidney Health, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA
| | - Yun Wang
- Section of Nephrology, Department of Medicine, Selzman Institute for Kidney Health, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA
| | - Ming Liang
- Section of Nephrology, Department of Medicine, Selzman Institute for Kidney Health, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA
| | - Tao Wang
- Duncan Cancer Center, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA
| | - William E Mitch
- Section of Nephrology, Department of Medicine, Selzman Institute for Kidney Health, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA
| | - Jizhong Cheng
- Section of Nephrology, Department of Medicine, Selzman Institute for Kidney Health, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA
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15
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Chen J, Zhou Y, Liu S, Li C. Biomechanical signal communication in vascular smooth muscle cells. J Cell Commun Signal 2020; 14:357-376. [PMID: 32780323 DOI: 10.1007/s12079-020-00576-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Accepted: 08/04/2020] [Indexed: 12/13/2022] Open
Abstract
Biomechanical stresses are closely associated with cardiovascular development and diseases. In vivo, vascular smooth muscle cells are constantly stimulated by biomechanical factors caused by increased blood pressure leading to the non-specific activation of cell transmembrane proteins. Thus, various intracellular signal molecules are simultaneously activated via signaling cascades, which are closely related to alterations in the differentiation, phenotype, inflammation, migration, pyroptosis, calcification, proliferation, and apoptosis of vascular smooth muscle cells. Meanwhile, mechanical stress-induced miRNAs and epigenetics modification on vascular smooth muscle cells play critical roles as well. Eventually, the overall pathophysiology of the cells is altered, resulting in the development of many major clinical diseases, including hypertension, atherosclerosis, grafted venous atherosclerosis, and aneurysm, among others. In this paper, important advances in mechanical signal communication in vascular smooth muscle cells are reviewed.
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Affiliation(s)
- Jingbo Chen
- Department of Histology and Embryology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Yan Zhou
- Department of Histology and Embryology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Shuying Liu
- Department of Histology and Embryology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong, China.
| | - Chaohong Li
- Department of Histology and Embryology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong, China.
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16
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Tribological Characteristics of Human Vascular Smooth Muscle Cells: The Implication of Disease State on Friction. ACTA ACUST UNITED AC 2020. [DOI: 10.1016/j.biotri.2020.100122] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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17
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Sun L, Wang C, Yuan Y, Guo Z, He Y, Ma W, Zhang J. Downregulation of HDAC1 suppresses media degeneration by inhibiting the migration and phenotypic switch of aortic vascular smooth muscle cells in aortic dissection. J Cell Physiol 2020; 235:8747-8756. [PMID: 32324261 DOI: 10.1002/jcp.29718] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Revised: 02/28/2020] [Accepted: 03/30/2020] [Indexed: 01/27/2023]
Abstract
Although much progress has been made in the diagnosis and treatment of thoracic aortic dissection (TAD), the overall morbidity and mortality rates of TAD are still high. Therefore, the molecular pathogenesis and etiology of TAD need to be elucidated. In this study, we found that histone deacetylase 1 (HDAC1) expression is dramatically higher in the aortic wall of patients with TAD (than that in a normal group) and negatively correlates with the levels of the vascular smooth muscle cell (SMC) contractile-phenotype markers. Knockdown of HDAC1 upregulated both smooth muscle 22 α (SM22α) and α-smooth muscle actin (α-SMA) in platelet-derived growth factor (PDGF)-BB-treated and -untreated SMCs. In addition, the knockdown of HDAC1 markedly decreased SMC viability and migration in contrast to the control group under the conditions of quiescence and PDGF-BB treatment. We also showed that the expression of polycystic kidney disease 1 (PKD1) is decreased in the aortic wall of patients with TAD and negatively correlates with HDAC1 expression. Overexpressed PKD1 obviously increased SM22α and α-SMA expression and reduced the viability and migration of SMCs, but these effects were attenuated by HDAC1. Furthermore, we demonstrated that HDAC1 serves as an important modulator of the migration and phenotypic switch of SMCs by suppressing the PKD1- mammalian target of the rapamycin signaling pathway. HDAC1 downregulation inhibited media degeneration and attenuated the loss of elastic-fiber integrity in a mouse model of TAD. Our results suggest that HDAC1 might be a new target for the treatment of a macrovascular disease such as TAD.
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Affiliation(s)
- Lin Sun
- Department of Cardiovascular Surgery, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Chunping Wang
- Department of Thoracic-cardiovascular Surgery, Tongji Hospital, Tongji University School of Medicine, Shanghai, China
| | - Ye Yuan
- Department of Vascular Surgery, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, China
| | - Zhen Guo
- Department of Cardiovascular Surgery, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Yubin He
- Department of Cardiovascular Surgery, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China.,Department of Cardiovascular Surgery, Huashan Hospital North Affiliated to Fudan University, Shanghai, China
| | - Wenrui Ma
- Department of Cardiothoracic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Jing Zhang
- Department of Cardiovascular Surgery, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
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18
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Fouquet O, Blossier JD, Dang Van S, Robert P, Barbelivien A, Pinaud F, Binuani P, Eid M, Henrion D, Baufreton C, Loufrani L. Do storage solutions protect endothelial function of arterialized vein graft in an experimental rat model? J Cardiothorac Surg 2020; 15:34. [PMID: 32041642 PMCID: PMC7011455 DOI: 10.1186/s13019-020-1077-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Accepted: 01/30/2020] [Indexed: 01/22/2023] Open
Abstract
BACKGROUND This study aims to compare the effects of storage solutions commonly used in coronary artery bypass grafting on the vascular reactivity in vein graft interposed in arterial position in syngeneic rats. METHODS Twenty-seven male Lewis rats were sacrified to sample a vein graft implanted 6 weeks ago into abdominal aorta position. The vein grafts were inferior venae cavae initially pretreated with heparinized saline solution (HS) or autologous heparinized blood (AHB) or our referent solution, GALA. The endothelial functionality, the in situ Reactive Oxygen Species (ROS) levels and the histological characteristics were conducted from segments of arterialized vein graft. RESULTS At 6 weeks, graft thrombosis occurred respectively in 22% of AHB group, 62.5% in the HS group and 82.5% in the GALA group. In each group, significative intimal hyperplasia was observed. After 6 weeks, an endothelium-remodeling layer associated with an increase of wall thickness was observed in each group. Endothelium-dependent tone was reduced in the vein graft regardless of the group. No difference was observed concerning the ROS in vein graft between the different groups. In distal aortic sections, ROS levels were increased in HS and GALA groups. CONCLUSIONS Storage solutions used in this experimental model of vein graft implanted in arterial position cause graft injury and a complete disappearance of vascular reactivity. GALA solution did not reduce intimal risk hyperplasia when the vein graft was exposed to arterial flow in a rat model.
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Affiliation(s)
- Olivier Fouquet
- Department of Cardiac Surgery, University Hospital of Angers, France, 4 rue Larrey, 49933 CHU, Angers Cedex 9, France.
- Institute MITOVASC CNRS UMR 6015, INSERM 1083, Angers, France.
| | - Jean-David Blossier
- Institute MITOVASC CNRS UMR 6015, INSERM 1083, Angers, France
- Department of Cardiac Surgery, CHU Dupuytren, Limoges, France
| | - Simon Dang Van
- Department of Cardiac Surgery, University Hospital of Angers, France, 4 rue Larrey, 49933 CHU, Angers Cedex 9, France
- Institute MITOVASC CNRS UMR 6015, INSERM 1083, Angers, France
| | - Pauline Robert
- Institute MITOVASC CNRS UMR 6015, INSERM 1083, Angers, France
| | | | - Frédéric Pinaud
- Department of Cardiac Surgery, University Hospital of Angers, France, 4 rue Larrey, 49933 CHU, Angers Cedex 9, France
- Institute MITOVASC CNRS UMR 6015, INSERM 1083, Angers, France
| | - Patrice Binuani
- Department of Cardiac Surgery, University Hospital of Angers, France, 4 rue Larrey, 49933 CHU, Angers Cedex 9, France
| | - Maroua Eid
- Department of Cardiac Surgery, University Hospital of Angers, France, 4 rue Larrey, 49933 CHU, Angers Cedex 9, France
| | - Daniel Henrion
- Institute MITOVASC CNRS UMR 6015, INSERM 1083, Angers, France
- University Hospital of Angers, Angers, France
| | - Christophe Baufreton
- Department of Cardiac Surgery, University Hospital of Angers, France, 4 rue Larrey, 49933 CHU, Angers Cedex 9, France
- Institute MITOVASC CNRS UMR 6015, INSERM 1083, Angers, France
| | - Laurent Loufrani
- Institute MITOVASC CNRS UMR 6015, INSERM 1083, Angers, France
- University Hospital of Angers, Angers, France
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19
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Yao Q, Liu Z, Yao A, Liu J, Jiang J, Chen Y, Li S, Han Y, Jiang Z, Qi Y. Circular RNA circTET3 mediates migration of rat vascular smooth muscle cells by targeting miR‐351‐5p. J Cell Physiol 2020; 235:6831-6842. [DOI: 10.1002/jcp.29577] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Accepted: 01/13/2020] [Indexed: 12/16/2022]
Affiliation(s)
- Qing‐Ping Yao
- Institute of Mechanobiology & Medical Engineering, School of Life Sciences & BiotechnologyShanghai Jiao Tong UniversityShanghai China
| | - Ze Liu
- Institute of Mechanobiology & Medical Engineering, School of Life Sciences & BiotechnologyShanghai Jiao Tong UniversityShanghai China
| | - Ai‐Hong Yao
- Institute of Embedded Computing and IoT, College of Computer Science and TechnologyHarbin Engineering UniversityHarbin China
| | - Ji‐Ting Liu
- Institute of Mechanobiology & Medical Engineering, School of Life Sciences & BiotechnologyShanghai Jiao Tong UniversityShanghai China
| | - Jun Jiang
- Department of Surgerythe Affiliated Hospital of Southwest Medical UniversityLuzhou China
| | - Yi Chen
- Institute of Mechanobiology & Medical Engineering, School of Life Sciences & BiotechnologyShanghai Jiao Tong UniversityShanghai China
| | - Shan‐Shan Li
- Institute of Mechanobiology & Medical Engineering, School of Life Sciences & BiotechnologyShanghai Jiao Tong UniversityShanghai China
| | - Yue Han
- Institute of Mechanobiology & Medical Engineering, School of Life Sciences & BiotechnologyShanghai Jiao Tong UniversityShanghai China
| | - Zong‐Lai Jiang
- Institute of Mechanobiology & Medical Engineering, School of Life Sciences & BiotechnologyShanghai Jiao Tong UniversityShanghai China
| | - Ying‐Xin Qi
- Institute of Mechanobiology & Medical Engineering, School of Life Sciences & BiotechnologyShanghai Jiao Tong UniversityShanghai China
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20
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Yada T, Abe M, Miyamoto K. Down-regulation of corticosteroid receptor in leucocytes of stressed rainbow trout. Gen Comp Endocrinol 2019; 280:54-61. [PMID: 30980804 DOI: 10.1016/j.ygcen.2019.04.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Revised: 04/09/2019] [Accepted: 04/09/2019] [Indexed: 11/23/2022]
Abstract
The relationship between stress and immunosuppression was investigated in peripheral blood leucocytes (PBL) in rainbow trout, with reference to corticosteroid receptor (CR) expression and responses to cortisol- and/or lipopolysaccharide (LPS)-administration. Confinement stress in shallow water resulted in a sustained elevation of plasma cortisol, whereas lysozyme and immunoglobin levels were suppressed. Significant increases in mRNA levels of caspase-6 and insulin-like growth factor (IGF)-I were observed in PBL isolated from stressed fish. Confinement stress also suppressed proinflammatory cytokine, interleukin (IL)-1β, expression in PBL. There were decreasing tendencies for the mRNA levels of CRs in PBL of stressed fish. In-vitro treatment of cortisol and LPS on isolated PBL from unstressed trout increased both IL-1 β and CR mRNA expression. However, in PBL from stressed fish, cortisol and LPS treatment increased IL-1 β but not CR mRNA levels. Proliferative activities estimated as in-vitro incorporation of bromodeoxyuridine (BrdU) were decreased by cortisol in PBL from the unstressed and stressed fish groups; however, LPS-stimulated proliferation was observed only in the unstressed fish. Ratios of apoptotic PBL quantified as cell fragmentation using an automated cell counter were increased by cortisol in both groups; however, LPS-stimulated apoptosis was observed only in the stressed fish. Our study reveals cortisol has immune-suppressive effects in stressed fish, irrespective of CR down-regulation and desensitization. The complexity of immune-endocrine interaction is shown by the stress-induced attenuation of LPS effects.
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Affiliation(s)
- Takashi Yada
- Coastal and Freshwater Fisheries Research Center, National Research Institute of Fisheries Science, Japan Fisheries Research and Education Agency, Nikko, Japan.
| | - Michihisa Abe
- Coastal and Freshwater Fisheries Research Center, National Research Institute of Fisheries Science, Japan Fisheries Research and Education Agency, Nikko, Japan
| | - Kouta Miyamoto
- Coastal and Freshwater Fisheries Research Center, National Research Institute of Fisheries Science, Japan Fisheries Research and Education Agency, Nikko, Japan
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21
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Wadey K, Lopes J, Bendeck M, George S. Role of smooth muscle cells in coronary artery bypass grafting failure. Cardiovasc Res 2019; 114:601-610. [PMID: 29373656 DOI: 10.1093/cvr/cvy021] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2017] [Accepted: 01/22/2018] [Indexed: 01/30/2023] Open
Abstract
Atherosclerosis is the underlying pathology of many cardiovascular diseases. The formation and rupture of atherosclerotic plaques in the coronary arteries results in angina and myocardial infarction. Venous coronary artery bypass grafts are designed to reduce the consequences of atherosclerosis in the coronary arteries by diverting blood flow around the atherosclerotic plaques. However, vein grafts suffer a high failure rate due to intimal thickening that occurs as a result of vascular cell injury and activation and can act as 'a soil' for subsequent atherosclerotic plaque formation. A clinically-proven method for the reduction of vein graft intimal thickening and subsequent major adverse clinical events is currently not available. Consequently, a greater understanding of the underlying mechanisms of intimal thickening may be beneficial for the design of future therapies for vein graft failure. Vein grafting induces inflammation and endothelial cell damage and dysfunction, that promotes vascular smooth muscle cell (VSMC) migration, and proliferation. Injury to the wall of the vein as a result of grafting leads to the production of chemoattractants, remodelling of the extracellular matrix and cell-cell contacts; which all contribute to the induction of VSMC migration and proliferation. This review focuses on the role of altered behaviour of VSMCs in the vein graft and some of the factors which critically lead to intimal thickening that pre-disposes the vein graft to further atherosclerosis and re-occurrence of symptoms in the patient.
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Affiliation(s)
- Kerry Wadey
- Bristol Medical School, Research Floor Level 7, Bristol Royal Infirmary, Bristol BS2 8HW, UK
| | - Joshua Lopes
- Translational Biology and Engineering Program, University of Toronto, Toronto, ON M5G 1M1, Canada
| | - Michelle Bendeck
- Translational Biology and Engineering Program, University of Toronto, Toronto, ON M5G 1M1, Canada
| | - Sarah George
- Bristol Medical School, Research Floor Level 7, Bristol Royal Infirmary, Bristol BS2 8HW, UK
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22
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Liang M, Guo Q, Huang F, Han G, Song K, Luo J, Cheng H, Hu H, Peden EK, Chen C, Mitch WE, Du J, Fu X, Truong L, Cheng J. Notch signaling in bone marrow-derived FSP-1 cells initiates neointima formation in arteriovenous fistulas. Kidney Int 2019; 95:1347-1358. [PMID: 30799025 PMCID: PMC6763204 DOI: 10.1016/j.kint.2018.11.027] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Revised: 11/02/2018] [Accepted: 11/08/2018] [Indexed: 11/16/2022]
Abstract
Neointima formation is a major contributor to arteriovenous fistula (AVF) failure. We have previously shown that activation of the Notch signaling pathway contributes to neointima formation by promoting the migration of vascular smooth muscle cells (VSMCs) into the venous anastomosis. In the current study we investigated the mechanisms underlying the dedifferentiation and migration of VSMCs, and in particular the role of bone marrow-derived fibroblast specific protein 1 (FSP-1)+ cells, another cell type found in models of vascular injury. Using VSMC-specific reporter mice, we found that most of the VSMCs participating in AVF neointima formation originated from dedifferentiated VSMCs. We also observed infiltration of bone marrow-derived FSP-1+ cells into the arterial anastomosis where they could interact with VSMCs. In vitro, conditioned media from FSP-1+ cells stimulated VSMC proliferation and phenotype switching. Activated Notch signaling transformed FSP-1+ cells into type I macrophages and stimulated secretion of cytokines and growth factors. Pretreatment with a Notch inhibitor or knockout of the canonical downstream factor RBP-Jκ in bone marrow-derived FSP1+ cells decreased FSP1+ cell infiltration into murine AVFs, attenuating VSMC dedifferentiation and neointima formation. Our results suggest that targeting Notch signaling could provide a new therapeutic strategy to improve AVF patency.
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MESH Headings
- Animals
- Arteriovenous Shunt, Surgical/adverse effects
- Cell Dedifferentiation/drug effects
- Cells, Cultured
- Disease Models, Animal
- Humans
- Immunoglobulin J Recombination Signal Sequence-Binding Protein/genetics
- Immunoglobulin J Recombination Signal Sequence-Binding Protein/metabolism
- Macrophages/drug effects
- Macrophages/metabolism
- Male
- Mice
- Mice, Knockout
- Muscle, Smooth, Vascular/cytology
- Myocytes, Smooth Muscle/drug effects
- Myocytes, Smooth Muscle/metabolism
- Myocytes, Smooth Muscle/pathology
- Neointima/etiology
- Neointima/pathology
- Neointima/prevention & control
- Primary Cell Culture
- Receptors, Notch/antagonists & inhibitors
- Receptors, Notch/metabolism
- Renal Dialysis/adverse effects
- Renal Dialysis/methods
- Renal Insufficiency, Chronic/therapy
- S100 Calcium-Binding Protein A4/metabolism
- Signal Transduction/drug effects
- Vascular Patency/drug effects
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Affiliation(s)
- Ming Liang
- Department of Nephrology, Guangzhou First People's Hospital, Guangzhou Medical University, Guangzhou, China; Selzman Institute for Kidney Health, Section of Nephrology, Department of Medicine, Baylor College of Medicine, Houston, Texas, USA
| | - Qunying Guo
- Selzman Institute for Kidney Health, Section of Nephrology, Department of Medicine, Baylor College of Medicine, Houston, Texas, USA
| | - Fengzhang Huang
- Selzman Institute for Kidney Health, Section of Nephrology, Department of Medicine, Baylor College of Medicine, Houston, Texas, USA
| | - Guofeng Han
- Selzman Institute for Kidney Health, Section of Nephrology, Department of Medicine, Baylor College of Medicine, Houston, Texas, USA
| | - Ke Song
- Selzman Institute for Kidney Health, Section of Nephrology, Department of Medicine, Baylor College of Medicine, Houston, Texas, USA
| | - Jinlong Luo
- Selzman Institute for Kidney Health, Section of Nephrology, Department of Medicine, Baylor College of Medicine, Houston, Texas, USA
| | - Hunter Cheng
- Selzman Institute for Kidney Health, Section of Nephrology, Department of Medicine, Baylor College of Medicine, Houston, Texas, USA
| | - Hongzhen Hu
- Pain Center, Washington University, Saint Louis, Missouri, USA
| | - Eric K Peden
- Department of Vascular Surgery, DeBakey Heart and Vascular Institute, Houston Methodist Hospital, Houston, Texas, USA
| | - Changyi Chen
- Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, Texas, USA
| | - William E Mitch
- Selzman Institute for Kidney Health, Section of Nephrology, Department of Medicine, Baylor College of Medicine, Houston, Texas, USA
| | - Jie Du
- Beijing AnZhen Hospital, Capital Medical University, The Key Laboratory of Remodeling-related Cardiovascular Diseases, Ministry of Education, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Beijing, China
| | - Xiaodong Fu
- Department of Nephrology, Guangzhou First People's Hospital, Guangzhou Medical University, Guangzhou, China
| | - Luan Truong
- Department of Pathology and Genomic Medicine, Houston Methodist Hospital, Methodist Hospital Research Institute, Houston, Texas, USA
| | - Jizhong Cheng
- Selzman Institute for Kidney Health, Section of Nephrology, Department of Medicine, Baylor College of Medicine, Houston, Texas, USA.
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23
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Fulop GA, Ramirez-Perez FI, Kiss T, Tarantini S, Valcarcel Ares MN, Toth P, Yabluchanskiy A, Conley SM, Ballabh P, Martinez-Lemus LA, Ungvari Z, Csiszar A. IGF-1 Deficiency Promotes Pathological Remodeling of Cerebral Arteries: A Potential Mechanism Contributing to the Pathogenesis of Intracerebral Hemorrhages in Aging. J Gerontol A Biol Sci Med Sci 2019; 74:446-454. [PMID: 29931048 PMCID: PMC6417448 DOI: 10.1093/gerona/gly144] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Indexed: 01/01/2023] Open
Abstract
Clinical and experimental studies show that age-related decline in circulating insulin-like growth factor-1 (IGF-1) levels promotes the pathogenesis of intracerebral hemorrhages, which critically contribute to the development of vascular cognitive impairment and disability in older adults. Yet, the mechanisms by which IGF-1 deficiency compromises structural integrity of the cerebral vasculature are not completely understood. To determine the role of IGF-1 deficiency in pathological remodeling of middle cerebral arteries (MCAs), we compared alterations in vascular mechanics, morphology, and remodeling-related gene expression profile in mice with liver-specific knockdown of IGF-1 (Igf1f/f + TBG-Cre-AAV8) and control mice with or without hypertension induced by angiotensin-II treatment. We found that IGF-1 deficiency resulted in thinning of the media and decreased wall-to-lumen ratio in MCAs. MCAs of control mice exhibited structural adaptation to hypertension, manifested as a significant increase in wall thickness, vascular smooth muscle cell (VSMC) hypertrophy, decreased internal diameter and up-regulation of extracellular matrix (ECM)-related genes. IGF-1 deficiency impaired hypertension-induced adaptive media hypertrophy and dysregulated ECM remodeling, decreasing elastin content and attenuating adaptive changes in ECM-related gene expression. Thus, circulating IGF-1 plays a critical role in maintenance of the structural integrity of cerebral arteries. Alterations of VSMC phenotype and pathological remodeling of the arterial wall associated with age-related IGF-1 deficiency have important translational relevance for the pathogenesis of intracerebral hemorrhages and vascular cognitive impairment in elderly hypertensive patients.
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Affiliation(s)
- Gabor A Fulop
- Department of Geriatric Medicine, Reynolds Oklahoma Center on Aging, University of Oklahoma Health Sciences Center, Oklahoma City
- Division of Clinical Physiology, Faculty of Medicine, University of Debrecen, Hungary
| | - Francisco I Ramirez-Perez
- Dalton Cardiovascular Research Center; Departments of Biological Engineering and Medical Pharmacology and Physiology, University of Missouri, Columbia
| | - Tamas Kiss
- Department of Geriatric Medicine, Reynolds Oklahoma Center on Aging, University of Oklahoma Health Sciences Center, Oklahoma City
- Department of Medical Physics and Informatics, University of Szeged, Hungary
| | - Stefano Tarantini
- Department of Geriatric Medicine, Reynolds Oklahoma Center on Aging, University of Oklahoma Health Sciences Center, Oklahoma City
| | - Marta Noa Valcarcel Ares
- Department of Geriatric Medicine, Reynolds Oklahoma Center on Aging, University of Oklahoma Health Sciences Center, Oklahoma City
| | - Peter Toth
- Department of Geriatric Medicine, Reynolds Oklahoma Center on Aging, University of Oklahoma Health Sciences Center, Oklahoma City
- Department of Neurosurgery, Medical School, University of Pecs, Hungary
| | - Andriy Yabluchanskiy
- Department of Geriatric Medicine, Reynolds Oklahoma Center on Aging, University of Oklahoma Health Sciences Center, Oklahoma City
| | - Shannon M Conley
- Department of Geriatric Medicine, Reynolds Oklahoma Center on Aging, University of Oklahoma Health Sciences Center, Oklahoma City
- Department of Cell Biology, University of Oklahoma Health Science Center, Oklahoma City
| | - Praveen Ballabh
- Department of Pediatrics, Albert Einstein College of Medicine, New York
| | - Luis A Martinez-Lemus
- Dalton Cardiovascular Research Center; Departments of Biological Engineering and Medical Pharmacology and Physiology, University of Missouri, Columbia
| | - Zoltan Ungvari
- Department of Geriatric Medicine, Reynolds Oklahoma Center on Aging, University of Oklahoma Health Sciences Center, Oklahoma City
- Department of Medical Physics and Informatics, University of Szeged, Hungary
- Department of Pulmonology, Semmelweis University, Budapest, Hungary
| | - Anna Csiszar
- Department of Geriatric Medicine, Reynolds Oklahoma Center on Aging, University of Oklahoma Health Sciences Center, Oklahoma City
- Department of Medical Physics and Informatics, University of Szeged, Hungary
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24
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Wu YT, Bi YM, Tan ZB, Xie LP, Xu HL, Fan HJ, Chen HM, Li J, Liu B, Zhou YC. Tanshinone I inhibits vascular smooth muscle cell proliferation by targeting insulin-like growth factor-1 receptor/phosphatidylinositol-3-kinase signaling pathway. Eur J Pharmacol 2019; 853:93-102. [PMID: 30878387 DOI: 10.1016/j.ejphar.2019.03.021] [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] [Received: 08/21/2018] [Revised: 03/03/2019] [Accepted: 03/12/2019] [Indexed: 02/07/2023]
Abstract
Vascular smooth muscle cell (VSMC) proliferation plays a critical role in arterial remodeling during various vascular diseases including atherosclerosis and hypertension. Tanshinone I, a major component of Salvia miltiorrhiza, exerts protective effects against cardiovascular diseases. In this study, we investigated the effects of tanshinone I on VSMC proliferation, as well as the underlying mechanisms. We found that this compound inhibited the proliferation of VSMCs in a dose-dependent manner, based on 3-(4,5-dimethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfophenyl)-2H-tetrazolium (MTS) and 5-ethynyl-2'-deoxyuridine (EdU) assays. Western blotting demonstrated that tanshinone I inhibited the expression of proliferation-related proteins, including cyclin-dependent kinase 4 (CDK4), cyclin D3, and cyclin D1, in a dose-dependent manner. Molecular docking showed that this compound docked to the inhibitor-binding site of the insulin-like growth factor 1 (IGF-1) receptor (IGF-1R), and the binding energy between tanshinone I and IGF-1R was -9.021 kcal/mol. Molecular dynamic simulations showed that the IGF-1R-tanshinone I binding was stable. We also found that tanshinone I dose-dependently inhibited IGF-1R activation and its downstream molecules, insulin receptor substrate (IRS)-1, phosphatidylinositol-3-Kinase (PI3K), Akt, glycogen synthase kinase-3 beta (GSK3β), mammalian target of rapamycin (mTOR), 70S6K, and ribosomal protein S6 (RPS6). Notably, activation of IGF-1R by recombinant IGF-1 rescued the activity of IGF-1R and its downstream molecules, and the proliferation of tanshinone I-treated VSMC. In addition, blocking PI3K signaling with LY294002 showed the important role of this pathway in tanshinone I-mediated suppression of VSMC proliferation. Collectively, these data demonstrated that tanshinone I might inhibit VSMC proliferation by inhibiting IGF-1R/PI3K signaling.
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Affiliation(s)
- Yu-Ting Wu
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China; Department of Traditional Chinese Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Yi-Ming Bi
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China; Department of Traditional Chinese Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Zhang-Bin Tan
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China; Department of Traditional Chinese Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Ling-Peng Xie
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China; Department of Traditional Chinese Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Hong-Lin Xu
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China; Department of Traditional Chinese Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Hui-Jie Fan
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China; Department of Traditional Chinese Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Hong-Mei Chen
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China; Department of Traditional Chinese Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Jun Li
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China; Department of Traditional Chinese Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Bin Liu
- Department of Traditional Chinese Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China; Guangzhou Institute of Cardiovascular Disease, the Second Affiliated Hospital of Guangzhou Medical University, Guangzhou 510260, China.
| | - Ying-Chun Zhou
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China; Department of Traditional Chinese Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China.
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25
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Dedicator of cytokinesis 2 silencing therapy inhibits neointima formation and improves blood flow in rat vein grafts. J Mol Cell Cardiol 2019; 128:134-144. [DOI: 10.1016/j.yjmcc.2019.01.030] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2018] [Revised: 01/02/2019] [Accepted: 01/31/2019] [Indexed: 01/01/2023]
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26
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Kim HK, Kang YG, Jeong SH, Park N, Marquez J, Ko KS, Rhee BD, Shin JW, Han J. Cyclic stretch increases mitochondrial biogenesis in a cardiac cell line. Biochem Biophys Res Commun 2018; 505:768-774. [PMID: 30297109 DOI: 10.1016/j.bbrc.2018.10.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Accepted: 10/01/2018] [Indexed: 11/27/2022]
Abstract
Unlike stable and immobile cell line conditions, animal hearts contract and relax to pump blood throughout the body. Mitochondria play an essential role by producing biological energy molecules to maintain heart function. In this study, we assessed the effect of heart mimetic cyclic stretch on mitochondria in a cardiac cell line. To mimic the geometric and biomechanical conditions surrounding cells in vivo, cyclic stretching was performed on HL-1 murine cardiomyocytes seeded onto an elastic micropatterned substrate (10% elongation, 0.5 Hz, 4 h/day). Cell viability, semi-quantitative Q-PCR, and western blot analyses were performed in non-stimulated control and cyclic stretch stimulated HL-1 cell lines. Cyclic stretch significantly increased the expression of mitochondria biogenesis-related genes (TUFM, TFAM, ERRα, and PGC1-α) and mitochondria oxidative phosphorylation-related genes (PHB1 and CYTB). Western blot analysis confirmed that cyclic stretch increased protein levels of mitochondria biogenesis-related proteins (TFAM, and ERRα) and oxidative phosphorylation-related proteins (NDUFS1, UQCRC, and PHB1). Consequently, cyclic stretch increased mitochondrial mass and ATP production in treated cells. Our results suggest that cyclic stretch transcriptionally enhanced mitochondria biogenesis and oxidative phosphorylation without detrimental effects in a cultured cardiac cell line.
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Affiliation(s)
- Hyoung Kyu Kim
- Cardiovascular and Metabolic Disease Center, Department of Physiology, Department of Health Sciences and Technology, BK21 Plus Project Team, College of Medicine, Bokji-ro 75, Busanjin-gu, Busan, 47392, South Korea; Department of Integrated Biomedical Science, College of Medicine, Inje University, Busanjin-gu, Busan, 47392, South Korea
| | - Yun Gyeong Kang
- Department of Biomedical Engineering, Inje University, Gimhae, Gyeongsangnam-do, 50834, South Korea
| | - Seung Hun Jeong
- Cardiovascular and Metabolic Disease Center, Department of Physiology, Department of Health Sciences and Technology, BK21 Plus Project Team, College of Medicine, Bokji-ro 75, Busanjin-gu, Busan, 47392, South Korea
| | - Nammi Park
- Cardiovascular and Metabolic Disease Center, Department of Physiology, Department of Health Sciences and Technology, BK21 Plus Project Team, College of Medicine, Bokji-ro 75, Busanjin-gu, Busan, 47392, South Korea
| | - Jubert Marquez
- Cardiovascular and Metabolic Disease Center, Department of Physiology, Department of Health Sciences and Technology, BK21 Plus Project Team, College of Medicine, Bokji-ro 75, Busanjin-gu, Busan, 47392, South Korea
| | - Kyung Soo Ko
- Cardiovascular and Metabolic Disease Center, Department of Physiology, Department of Health Sciences and Technology, BK21 Plus Project Team, College of Medicine, Bokji-ro 75, Busanjin-gu, Busan, 47392, South Korea
| | - Byoung Doo Rhee
- Cardiovascular and Metabolic Disease Center, Department of Physiology, Department of Health Sciences and Technology, BK21 Plus Project Team, College of Medicine, Bokji-ro 75, Busanjin-gu, Busan, 47392, South Korea
| | - Jung-Woog Shin
- Department of Biomedical Engineering, Inje University, Gimhae, Gyeongsangnam-do, 50834, South Korea.
| | - Jin Han
- Cardiovascular and Metabolic Disease Center, Department of Physiology, Department of Health Sciences and Technology, BK21 Plus Project Team, College of Medicine, Bokji-ro 75, Busanjin-gu, Busan, 47392, South Korea.
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Chen X, Yan J, He F, Zhong D, Yang H, Pei M, Luo ZP. Mechanical stretch induces antioxidant responses and osteogenic differentiation in human mesenchymal stem cells through activation of the AMPK-SIRT1 signaling pathway. Free Radic Biol Med 2018; 126:187-201. [PMID: 30096433 PMCID: PMC6165675 DOI: 10.1016/j.freeradbiomed.2018.08.001] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2018] [Revised: 07/24/2018] [Accepted: 08/01/2018] [Indexed: 12/12/2022]
Abstract
Mesenchymal stem cells (MSCs) are promising cell sources for regenerative medicine. Growing evidence has indicated that mechanical stimuli are crucial for their lineage-specific differentiation. However, the effect of mechanical loading on redox balance and the intracellular antioxidant system in MSCs was unknown. In this study, human bone marrow-derived MSCs (BM-MSCs) were subjected to cyclic stretch at the magnitude of 2.5%, 5%, and 10%. Cell proliferation, intracellular reactive oxygen species (ROS), expression of antioxidant enzymes, and osteogenic differentiation were evaluated. RNA was extracted and subjected to DNA microarray analysis. Sirtinol and compound C were used to investigate the underlying mechanisms involved silent information regulator type 1 (SIRT1) and AMP-activated protein kinase (AMPK). Our results showed that mechanical stretch at appropriate magnitudes increased cell proliferation, up-regulated extracellular matrix organization, and down-regulated matrix disassembly. After 3 days of stretch, intracellular ROS in BM-MSCs were decreased but the levels of antioxidant enzymes, especially superoxide dismutase 1 (SOD1), were up-regulated. Osteogenesis was improved by 5% stretch rather than 10% stretch, as evidenced by increased matrix mineralization and osteogenic marker gene expression. The expression of SIRT1 and phosphorylation of AMPK were enhanced by mechanical stretch; however, inhibition of SIRT1 or AMPK abrogated the stretch-induced antioxidant effect on BM-MSCs and inhibited the stretch-mediated osteogenic differentiation. Our findings reveal that mechanical stretch induced antioxidant responses, attenuated intracellular ROS, and improved osteogenesis of BM-MSCs. The stretch-induced antioxidant effect was through activation of the AMPK-SIRT1 signaling pathway. Our findings demonstrated that appropriate mechanical stimulation can improve MSC antioxidant functions and benefit bone regeneration.
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Affiliation(s)
- Xi Chen
- Orthopaedic Institute, Medical College, Soochow University, Suzhou 215007, China; Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Suzhou 215006, China; School of Biology and Basic Medical Sciences, Medical College, Soochow University, Suzhou 215123, China
| | - Jinku Yan
- Orthopaedic Institute, Medical College, Soochow University, Suzhou 215007, China; Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Suzhou 215006, China
| | - Fan He
- Orthopaedic Institute, Medical College, Soochow University, Suzhou 215007, China; Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Suzhou 215006, China.
| | - Dongyan Zhong
- Orthopaedic Institute, Medical College, Soochow University, Suzhou 215007, China; Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Suzhou 215006, China
| | - Huilin Yang
- Orthopaedic Institute, Medical College, Soochow University, Suzhou 215007, China; Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Suzhou 215006, China
| | - Ming Pei
- Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics, West Virginia University, Morgantown, WV, USA
| | - Zong-Ping Luo
- Orthopaedic Institute, Medical College, Soochow University, Suzhou 215007, China; Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Suzhou 215006, China.
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Qi YX, Han Y, Jiang ZL. Mechanobiology and Vascular Remodeling: From Membrane to Nucleus. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 1097:69-82. [PMID: 30315540 DOI: 10.1007/978-3-319-96445-4_4] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Vascular endothelial cells (ECs) and smooth muscle cells (VSMCs) are constantly exposed to hemodynamic forces in vivo, including flow shear stress and cyclic stretch caused by the blood flow. Numerous researches revealed that during various cardiovascular diseases such as atherosclerosis, hypertension, and vein graft, abnormal (pathological) mechanical forces play crucial roles in the dysfunction of ECs and VSMCs, which is the fundamental process during both vascular homeostasis and remodeling. Hemodynamic forces trigger several membrane molecules and structures, such as integrin, ion channel, primary cilia, etc., and induce the cascade reaction processes through complicated cellular signaling networks. Recent researches suggest that nuclear envelope proteins act as the functional homology of molecules on the membrane, are important mechanosensitive molecules which modulate chromatin location and gene transcription, and subsequently regulate cellular functions. However, the studies on the roles of nucleus in the mechanotransduction process are still at the beginning. Here, based on the recent researches, we focused on the nuclear envelope proteins and discussed the roles of pathological hemodynamic forces in vascular remodeling. It may provide new insight into understanding the molecular mechanism of vascular physiological homeostasis and pathophysiological remodeling and may help to develop hemodynamic-based strategies for the prevention and management of vascular diseases.
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Affiliation(s)
- Ying-Xin Qi
- Institute of Mechanobiology and Medical Engineering, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China.
| | - Yue Han
- Institute of Mechanobiology and Medical Engineering, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
| | - Zong-Lai Jiang
- Institute of Mechanobiology and Medical Engineering, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
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Tseng CN, Chang YT, Lengquist M, Kronqvist M, Hedin U, Eriksson EE. Platelet adhesion on endothelium early after vein grafting mediates leukocyte recruitment and intimal hyperplasia in a murine model. Thromb Haemost 2017; 113:813-25. [DOI: 10.1160/th14-07-0608] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2014] [Accepted: 11/08/2014] [Indexed: 12/23/2022]
Abstract
SummaryIntimal hyperplasia (IH) is the substrate for accelerated atherosclerosis and limited patency of vein grafts. However, there is still no specific treatment targeting IH following graft surgery. In this study, we used a mouse model of vein grafting to investigate the potential for early intervention with platelet function for later development of graft IH. We transferred the inferior vena cava (IVC) from donor C57BL/6 mice to the carotid artery in recipients using a cuff technique. We found extensive endothelial injury and platelet adhesion one hour following grafting. Adhesion of leukocytes was distinct in areas of platelet adhesion. Platelet and leukocyte adhesion was strongly reduced in mice receiving a function-blocking antibody against the integrin αIIbβ3. This was followed by a reduction of IH one month following grafting. Depletion of platelets using antiserum also reduced IH at later time points. These findings indicate platelets as pivotal to leukocyte recruitment to the wall of vein grafts. In conclusion, the data also highlight early intervention of platelets and inflammation as potential treatment for later formation of IH and accelerated atherosclerosis following bypass surgery.
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Luo J, Chen G, Liang M, Xie A, Li Q, Guo Q, Sharma R, Cheng J. Reduced Expression of Glutathione S-Transferase α 4 Promotes Vascular Neointimal Hyperplasia in CKD. J Am Soc Nephrol 2017; 29:505-517. [PMID: 29127112 DOI: 10.1681/asn.2017030290] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Accepted: 09/27/2017] [Indexed: 11/03/2022] Open
Abstract
Neointima formation is the leading cause of arteriovenous fistula (AVF) failure. We have shown that CKD accelerates this process by transforming the vascular smooth muscle cells (SMCs) lining the AVF from a contractile to the synthetic phenotype. However, the underlying mechanisms affecting this transformation are not clear. Previous studies have shown that the α-class glutathione transferase isozymes have an important role in regulating 4-hydroxynonenal (4-HNE)-mediated proliferative signaling of cells. Here, using both the loss- and gain-of-function approaches, we investigated the role of glutathione S-transferase α4 (GSTA4) in modulating cellular 4-HNE levels for the transformation and proliferation of SMCs. Compared with non-CKD controls, mice with CKD had downregulated expression of GSTA4 at the mRNA and protein levels, with concomitant increase in 4-HNE in arteries and veins. This effect was associated with upregulated phosphorylation of MAPK signaling pathway proteins in proliferating SMCs. Overexpressing GSTA4 blocked 4-HNE-induced SMC proliferation. Additionally, inhibitors of MAPK signaling inhibited the 4-HNE-induced responses. Compared with wild-type mice, mice lacking GSTA4 exhibited increased CKD-induced neointima formation in AVF. Transient expression of an activated form of GSTA4, achieved using a combined Tet-On/Cre induction system in mice, lowered levels of 4-HNE and reduced the proliferation of SMCs. Together, these results demonstrate the critical role of GSTA4 in blocking CKD-induced neointima formation and AVF failure.
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Affiliation(s)
- Jinlong Luo
- Department of Emergency, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, China.,Selzman Institute for Kidney Health, Section of Nephrology, Department of Medicine, Baylor College of Medicine, Houston, Texas
| | - Guang Chen
- Selzman Institute for Kidney Health, Section of Nephrology, Department of Medicine, Baylor College of Medicine, Houston, Texas.,Department of Integrative Traditional Chinese & Western Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science & Technology, Wuhan, China; and
| | - Ming Liang
- Selzman Institute for Kidney Health, Section of Nephrology, Department of Medicine, Baylor College of Medicine, Houston, Texas.,Department of Nephrology, Guangzhou First People's Hospital, Guangzhou Medical University, China
| | - Aini Xie
- Selzman Institute for Kidney Health, Section of Nephrology, Department of Medicine, Baylor College of Medicine, Houston, Texas
| | - Qingtian Li
- Selzman Institute for Kidney Health, Section of Nephrology, Department of Medicine, Baylor College of Medicine, Houston, Texas
| | - Qunying Guo
- Selzman Institute for Kidney Health, Section of Nephrology, Department of Medicine, Baylor College of Medicine, Houston, Texas
| | - Rajendra Sharma
- Department of Integrative Traditional Chinese & Western Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science & Technology, Wuhan, China; and
| | - Jizhong Cheng
- Selzman Institute for Kidney Health, Section of Nephrology, Department of Medicine, Baylor College of Medicine, Houston, Texas;
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31
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Huang K, Bao H, Yan ZQ, Wang L, Zhang P, Yao QP, Shi Q, Chen XH, Wang KX, Shen BR, Qi YX, Jiang ZL. MicroRNA-33 protects against neointimal hyperplasia induced by arterial mechanical stretch in the grafted vein. Cardiovasc Res 2017; 113:488-497. [PMID: 28137944 DOI: 10.1093/cvr/cvw257] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2016] [Accepted: 12/30/2016] [Indexed: 12/12/2022] Open
Abstract
Aims Mechanical factors play significant roles in neointimal hyperplasia after vein grafting, but the mechanisms are not fully understood. Here, we investigated the roles of microRNA-33 (miR-33) in neointimal hyperplasia induced by arterial mechanical stretch after vein grafting. Methods and results Grafted veins were generated by the 'cuff' technique. Neointimal hyperplasia and cell proliferation was significantly increased, and miR-33 expression was decreased after 1-, 2-, and 4-week grafts. In contrast, the expression of bone morphogenetic protein 3 (BMP3), which is a putative target of miR-33, and the phosphorylation of smad2 and smad5, which are potential downstream targets of BMP3, were increased in the grafted veins. miR-33 mimics/inhibitor and dual luciferase reporter assay confirmed the interaction of miR-33 and BMP3. miR-33 mimics attenuated, while miR-33 inhibitor accelerated, proliferation of venous smooth muscle cells (SMCs). Moreover, recombinant BMP3 increased SMC proliferation and P-smad2 and P-smad5 levels, whereas BMP3-directed siRNAs had the opposite effect. Then, venous SMCs were exposed to a 10%-1.25 Hz cyclic stretch (arterial stretch) by using the FX4000 cyclic stretch loading system in vitro to mimic arterial mechanical conditions. The arterial stretch increased venous SMC proliferation and repressed miR-33 expression, but enhanced BMP3 expression and smad2 and smad5 phosphorylation. Furthermore, perivascular multi-point injection in vivo demonstrated that agomiR-33 not only attenuates BMP3 expression and smad2 and smad5 phosphorylation, but also slows neointimal formation and cell proliferation in grafted veins. These effects of agomiR-33 on grafted veins could be reversed by local injection of BMP3 lentivirus. Conclusion The miR-33-BMP3-smad signalling pathway protects against venous SMC proliferation in response to the arterial stretch. miR-33 is a target that attenuates neointimal hyperplasia in grafted vessels and may have potential clinical applications.
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MESH Headings
- 3' Untranslated Regions
- Animals
- Antagomirs/genetics
- Antagomirs/metabolism
- Binding Sites
- Bone Morphogenetic Protein 3/genetics
- Bone Morphogenetic Protein 3/metabolism
- Cell Proliferation
- Cells, Cultured
- Hyperplasia
- Jugular Veins/metabolism
- Jugular Veins/pathology
- Jugular Veins/transplantation
- Male
- Mechanotransduction, Cellular
- MicroRNAs/genetics
- MicroRNAs/metabolism
- Muscle, Smooth, Vascular/metabolism
- Muscle, Smooth, Vascular/pathology
- Muscle, Smooth, Vascular/transplantation
- Myocytes, Smooth Muscle/metabolism
- Myocytes, Smooth Muscle/pathology
- Myocytes, Smooth Muscle/transplantation
- Neointima
- Phosphorylation
- RNA Interference
- Rats, Sprague-Dawley
- Smad2 Protein/metabolism
- Smad5 Protein/metabolism
- Stress, Mechanical
- Time Factors
- Transfection
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Wang C, Zhang C, Liu L, A X, Chen B, Li Y, Du J. Macrophage-Derived mir-155-Containing Exosomes Suppress Fibroblast Proliferation and Promote Fibroblast Inflammation during Cardiac Injury. Mol Ther 2017; 25:192-204. [PMID: 28129114 PMCID: PMC5363311 DOI: 10.1016/j.ymthe.2016.09.001] [Citation(s) in RCA: 260] [Impact Index Per Article: 37.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2016] [Revised: 09/21/2016] [Accepted: 09/26/2016] [Indexed: 12/31/2022] Open
Abstract
Inflammation plays an important role in cardiac injuries. Here, we examined the role of miRNA in regulating inflammation and cardiac injury during myocardial infarction. We showed that mir-155 expression was increased in the mouse heart after myocardial infarction. Upregulated mir-155 was primarily presented in macrophages and cardiac fibroblasts of injured hearts, while pri-mir-155 was only expressed in macrophages. mir-155 was also presented in exosomes derived from macrophages, and it can be transferred into cardiac fibroblasts by macrophage-derived exosomes. A mir-155 mimic or mir-155 containing exosomes inhibited cardiac fibroblast proliferation by downregulating Son of Sevenless 1 expression and promoted inflammation by decreasing Suppressor of Cytokine Signaling 1 expression. These effects were reversed by the addition of a mir-155 inhibitor. In vivo, mir-155-deficient mice showed a significant reduction of the incidence of cardiac rupture and an improved cardiac function compared with wild-type mice. Moreover, transfusion of wild-type macrophage exosomes to mir-155-/- mice exacerbated cardiac rupture. Finally, the mir-155-deficient mice exhibited elevated fibroblast proliferation and collagen production, along with reduced cardiac inflammation in injured heart. Taken together, our results demonstrate that activated macrophages secrete mir-155-enriched exosomes and identify macrophage-derived mir-155 as a paracrine regulator for fibroblast proliferation and inflammation; thus, a mir-155 inhibitor (i.e., mir-155 antagomir) has the potential to be a therapeutic agent for reducing acute myocardial-infarction-related adverse events.
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Affiliation(s)
- Chunxiao Wang
- Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China; The Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing 100029, China; Beijing Institute of Heart Lung and Blood Vessel Diseases, Beijing Collaborative Innovative Research Center for Cardiovascular Diseases, Beijing 100029, China
| | - Congcong Zhang
- Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China; The Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing 100029, China; Beijing Institute of Heart Lung and Blood Vessel Diseases, Beijing Collaborative Innovative Research Center for Cardiovascular Diseases, Beijing 100029, China
| | - Luxin Liu
- Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China; The Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing 100029, China; Beijing Institute of Heart Lung and Blood Vessel Diseases, Beijing Collaborative Innovative Research Center for Cardiovascular Diseases, Beijing 100029, China
| | - Xi A
- Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China; The Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing 100029, China; Beijing Institute of Heart Lung and Blood Vessel Diseases, Beijing Collaborative Innovative Research Center for Cardiovascular Diseases, Beijing 100029, China
| | - Boya Chen
- Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China; The Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing 100029, China; Beijing Institute of Heart Lung and Blood Vessel Diseases, Beijing Collaborative Innovative Research Center for Cardiovascular Diseases, Beijing 100029, China
| | - Yulin Li
- Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China; The Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing 100029, China; Beijing Institute of Heart Lung and Blood Vessel Diseases, Beijing Collaborative Innovative Research Center for Cardiovascular Diseases, Beijing 100029, China.
| | - Jie Du
- Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China; The Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing 100029, China; Beijing Institute of Heart Lung and Blood Vessel Diseases, Beijing Collaborative Innovative Research Center for Cardiovascular Diseases, Beijing 100029, China.
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Wang Q, Wan L, Liu L, Liu J. Role of the mTOR Signalling Pathway in Experimental Rabbit Vein Grafts. Heart Lung Circ 2016; 25:1124-1132. [DOI: 10.1016/j.hlc.2016.03.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Revised: 01/29/2016] [Accepted: 03/21/2016] [Indexed: 11/29/2022]
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Sustained activation of ADP/P2ry12 signaling induces SMC senescence contributing to thoracic aortic aneurysm/dissection. J Mol Cell Cardiol 2016; 99:76-86. [PMID: 27534720 DOI: 10.1016/j.yjmcc.2016.08.008] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/13/2016] [Revised: 08/06/2016] [Accepted: 08/09/2016] [Indexed: 12/15/2022]
Abstract
Thoracic aortic aneurysm/dissection (TAAD) is characterized by excessive smooth muscle cell (SMC) loss, extracellular matrix (ECM) degradation and inflammation. However, the mechanism whereby signaling leads to SMC loss is unclear. We used senescence-associated (SA)-β-gal staining and analysis of expression of senescence-related proteins (p53, p21, p19) to show that excessive mechanical stretch (20% elongation, 3600cycles/h, 48h) induced SMC senescence. SMC senescence was also detected in TAAD specimens from both mice and humans. High-performance liquid chromatography and luciferin-luciferase-based assay revealed that excessive mechanical stretch increased adenosine diphosphate (ADP) release from SMCs both in vivo and in vitro. Elevated ADP induced SMC senescence while genetic knockout of the ADP receptor, P2Y G protein-coupled receptor 12 (P2ry12), in mice protected against SMC senescence and inflammation. Both TAAD formation and rupture were significantly reduced in P2ry12-/- mice. SMCs from P2ry12-/- mice were resistant to senescence induced by excessive mechanical stretch or ADP treatment. Mechanistically, ADP treatment sustained Ras activation, whereas pharmacological inhibition of Ras protected against SMC senescence and reduced TAAD formation. Taken together, excessive mechanical stress may induce a sustained release of ADP and promote SMC senescence via P2ry12-dependent sustained Ras activation, thereby contributing to excessive inflammation and degeneration, which provides insights into TAAD formation and progression.
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35
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Goldstone RN, McCormack MC, Khan SI, Salinas HM, Meppelink A, Randolph MA, Watkins MT, Redmond RW, Austen WG. Photochemical Tissue Passivation Reduces Vein Graft Intimal Hyperplasia in a Swine Model of Arteriovenous Bypass Grafting. J Am Heart Assoc 2016; 5:e003856. [PMID: 27464790 PMCID: PMC5015302 DOI: 10.1161/jaha.116.003856] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2016] [Accepted: 07/01/2016] [Indexed: 01/22/2023]
Abstract
BACKGROUND Bypass grafting remains the standard of care for coronary artery disease and severe lower extremity ischemia. Efficacy is limited by poor long-term venous graft patency secondary to intimal hyperplasia (IH) caused by venous injury upon exposure to arterial pressure. We investigate whether photochemical tissue passivation (PTP) treatment of vein grafts modulates smooth muscle cell (SMC) proliferation and migration, and inhibits development of IH. METHODS AND RESULTS PTP was performed at increasing fluences up to 120 J/cm(2) on porcine veins. Tensiometry performed to assess vessel elasticity/stiffness showed increased stiffness with increasing fluence until plateauing at 90 J/cm(2) (median, interquartile range [IQR]). At 90 J/cm(2), PTP-treated vessels had a 10-fold greater Young's modulus than untreated controls (954 [IQR, 2217] vs 99 kPa [IQR, 63]; P=0.03). Each pig received a PTP-treated and untreated carotid artery venous interposition graft. At 4-weeks, intimal/medial areas were assessed. PTP reduced the degree of IH by 66% and medial hypertrophy by 49%. Intimal area was 3.91 (IQR, 1.2) and 1.3 mm(2) (IQR, 0.97; P≤0.001) in untreated and PTP-treated grafts, respectively. Medial area was 9.2 (IQR, 3.2) and 4.7 mm(2) (IQR, 2.0; P≤0.001) in untreated and PTP-treated grafts, respectively. Immunohistochemistry was performed to assess alpha-smooth muscle actin (SMA) and proliferating cell nuclear antigen (PCNA). Objectively, there were less SMA-positive cells within the intima/media of PTP-treated vessels than controls. There was an increase in PCNA-positive cells within control vein grafts (18% [IQR, 5.3]) versus PTP-treated vein grafts (5% [IQR, 0.9]; P=0.02). CONCLUSIONS By strengthening vein grafts, PTP decreases SMC proliferation and migration, thereby reducing IH.
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Affiliation(s)
- Robert N Goldstone
- Division of Plastic and Reconstructive Surgery, Harvard Medical School, Massachusetts General Hospital, Boston, MA
| | - Michael C McCormack
- Division of Plastic and Reconstructive Surgery, Harvard Medical School, Massachusetts General Hospital, Boston, MA
| | - Saiqa I Khan
- Division of Plastic and Reconstructive Surgery, Harvard Medical School, Massachusetts General Hospital, Boston, MA
| | - Harry M Salinas
- Division of Plastic and Reconstructive Surgery, Harvard Medical School, Massachusetts General Hospital, Boston, MA
| | - Amanda Meppelink
- Division of Plastic and Reconstructive Surgery, Harvard Medical School, Massachusetts General Hospital, Boston, MA
| | - Mark A Randolph
- Division of Plastic and Reconstructive Surgery, Harvard Medical School, Massachusetts General Hospital, Boston, MA
| | - Michael T Watkins
- Division of Vascular and Endovascular Surgery, Harvard Medical School, Massachusetts General Hospital, Boston, MA
| | - Robert W Redmond
- Department of Dermatology, and Wellman Center for Photomedicine, Harvard Medical School, Massachusetts General Hospital, Boston, MA
| | - William G Austen
- Division of Plastic and Reconstructive Surgery, Harvard Medical School, Massachusetts General Hospital, Boston, MA
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Shh mediates PDGF-induced contractile-to-synthetic phenotypic modulation in vascular smooth muscle cells through regulation of KLF4. Exp Cell Res 2016; 345:82-92. [DOI: 10.1016/j.yexcr.2016.05.014] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2015] [Revised: 05/11/2016] [Accepted: 05/15/2016] [Indexed: 12/31/2022]
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Luo J, Liang A, Liang M, Xia R, Rizvi Y, Wang Y, Cheng J. Serum Glucocorticoid-Regulated Kinase 1 Blocks CKD-Induced Muscle Wasting Via Inactivation of FoxO3a and Smad2/3. J Am Soc Nephrol 2016; 27:2797-808. [PMID: 26880799 DOI: 10.1681/asn.2015080867] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Accepted: 01/10/2016] [Indexed: 12/18/2022] Open
Abstract
Muscle proteolysis in CKD is stimulated when the ubiquitin-proteasome system is activated. Serum glucocorticoid-regulated kinase 1 (SGK-1) is involved in skeletal muscle homeostasis, but the role of this protein in CKD-induced muscle wasting is unknown. We found that, compared with muscles from healthy controls, muscles from patients and mice with CKD express low levels of SGK-1. In mice, SGK-1-knockout (SGK-1-KO) induced muscle loss that correlated with increased expression of ubiquitin E3 ligases known to facilitate protein degradation by the ubiquitin-proteasome, and CKD substantially aggravated this response. SGK-1-KO also altered the phosphorylation levels of transcription factors FoxO3a and Smad2/3. In C2C12 muscle cells, expression of dominant negative FoxO3a or knockdown of Smad2/3 suppressed the upregulation of E3 ligases induced by loss of SGK-1. Additionally, SGK-1 overexpression increased the level of phosphorylated N-myc downstream-regulated gene 1 protein, which directly interacted with and suppressed the phosphorylation of Smad2/3. Overexpression of SGK-1 in wild-type mice with CKD had similar effects on the phosphorylation of FoxO3a and Smad2/3 and prevented CKD-induced muscle atrophy. Finally, mechanical stretch of C2C12 muscle cells or treadmill running of wild-type mice with CKD stimulated SGK-1 production, and treadmill running inhibited proteolysis in muscle. These protective responses were absent in SGK-1-KO mice. Thus, SGK-1 could be a mechanical sensor that mediates exercise-induced improvement in muscle wasting stimulated by CKD.
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Affiliation(s)
- Jinlong Luo
- Department of Emergency, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, China; and Selzman Institute for Kidney Health, Nephrology Division, Baylor College of Medicine, Houston, Texas
| | - Anlin Liang
- Selzman Institute for Kidney Health, Nephrology Division, Baylor College of Medicine, Houston, Texas
| | - Ming Liang
- Selzman Institute for Kidney Health, Nephrology Division, Baylor College of Medicine, Houston, Texas
| | - Ruohan Xia
- Selzman Institute for Kidney Health, Nephrology Division, Baylor College of Medicine, Houston, Texas
| | - Yasmeen Rizvi
- Selzman Institute for Kidney Health, Nephrology Division, Baylor College of Medicine, Houston, Texas
| | - Yun Wang
- Selzman Institute for Kidney Health, Nephrology Division, Baylor College of Medicine, Houston, Texas
| | - Jizhong Cheng
- Selzman Institute for Kidney Health, Nephrology Division, Baylor College of Medicine, Houston, Texas
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Huang CH, Ciou JS, Chen ST, Kok VC, Chung Y, Tsai JJP, Kurubanjerdjit N, Huang CYF, Ng KL. Identify potential drugs for cardiovascular diseases caused by stress-induced genes in vascular smooth muscle cells. PeerJ 2016; 4:e2478. [PMID: 27703845 PMCID: PMC5045879 DOI: 10.7717/peerj.2478] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Accepted: 08/23/2016] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Abnormal proliferation of vascular smooth muscle cells (VSMC) is a major cause of cardiovascular diseases (CVDs). Many studies suggest that vascular injury triggers VSMC dedifferentiation, which results in VSMC changes from a contractile to a synthetic phenotype; however, the underlying molecular mechanisms are still unclear. METHODS In this study, we examined how VSMC responds under mechanical stress by using time-course microarray data. A three-phase study was proposed to investigate the stress-induced differentially expressed genes (DEGs) in VSMC. First, DEGs were identified by using the moderated t-statistics test. Second, more DEGs were inferred by using the Gaussian Graphical Model (GGM). Finally, the topological parameters-based method and cluster analysis approach were employed to predict the last batch of DEGs. To identify the potential drugs for vascular diseases involve VSMC proliferation, the drug-gene interaction database, Connectivity Map (cMap) was employed. Success of the predictions were determined using in-vitro data, i.e. MTT and clonogenic assay. RESULTS Based on the differential expression calculation, at least 23 DEGs were found, and the findings were qualified by previous studies on VSMC. The results of gene set enrichment analysis indicated that the most often found enriched biological processes are cell-cycle-related processes. Furthermore, more stress-induced genes, well supported by literature, were found by applying graph theory to the gene association network (GAN). Finally, we showed that by processing the cMap input queries with a cluster algorithm, we achieved a substantial increase in the number of potential drugs with experimental IC50 measurements. With this novel approach, we have not only successfully identified the DEGs, but also improved the DEGs prediction by performing the topological and cluster analysis. Moreover, the findings are remarkably validated and in line with the literature. Furthermore, the cMap and DrugBank resources were used to identify potential drugs and targeted genes for vascular diseases involve VSMC proliferation. Our findings are supported by in-vitro experimental IC50, binding activity data and clinical trials. CONCLUSION This study provides a systematic strategy to discover potential drugs and target genes, by which we hope to shed light on the treatments of VSMC proliferation associated diseases.
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Affiliation(s)
- Chien-Hung Huang
- Department of Computer Science and Information Engineering, National Formosa University, Yun-Lin, Taiwan
| | - Jin-Shuei Ciou
- Department of Bioinformatics and Medical Engineering, Asia University, Taichung, Taiwan
| | - Shun-Tsung Chen
- Department of Bioinformatics and Medical Engineering, Asia University, Taichung, Taiwan
| | - Victor C. Kok
- Department of Bioinformatics and Medical Engineering, Asia University, Taichung, Taiwan
- Division of Medical Oncology, Kuang Tien General Hospital Cancer Center, Taichung, Taiwan
| | - Yi Chung
- Department of Bioinformatics and Medical Engineering, Asia University, Taichung, Taiwan
| | - Jeffrey J. P. Tsai
- Department of Bioinformatics and Medical Engineering, Asia University, Taichung, Taiwan
| | | | - Chi-Ying F. Huang
- Institute of Biopharmaceutical Sciences, National Yang-Ming University, Taipei, Taiwan
| | - Ka-Lok Ng
- Department of Bioinformatics and Medical Engineering, Asia University, Taichung, Taiwan
- Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, Taiwan
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39
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An overview of potential molecular mechanisms involved in VSMC phenotypic modulation. Histochem Cell Biol 2015; 145:119-30. [DOI: 10.1007/s00418-015-1386-3] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/03/2015] [Indexed: 12/21/2022]
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40
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Batchu SN, Xia J, Ko KA, Doyley MM, Abe JI, Morrell CN, Korshunov VA. Axl modulates immune activation of smooth muscle cells in vein graft remodeling. Am J Physiol Heart Circ Physiol 2015; 309:H1048-58. [PMID: 26276821 DOI: 10.1152/ajpheart.00495.2015] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2015] [Accepted: 08/06/2015] [Indexed: 12/13/2022]
Abstract
The pathophysiological mechanisms of the immune activation of smooth muscle cells are not well understood. Increased expression of Axl, a receptor tyrosine kinase, was recently found in arteries from patients after coronary bypass grafts. In the present study, we hypothesized that Axl-dependent immune activation of smooth muscle cells regulates vein graft remodeling. We observed a twofold decrease in intimal thickening after vascular and systemic depletion of Axl in vein grafts. Local depletion of Axl had the greatest effect on immune activation, whereas systemic deletion of Axl reduced intima due to an increase in apoptosis in vein grafts. Primary smooth muscle cells isolated from Axl knockout mice had reduced proinflammatory responses by prevention of the STAT1 pathway. The absence of Axl increased suppressor of cytokine signaling (SOCS)1 expression in smooth muscle cells, a major inhibitory protein for STAT1. Ultrasound imaging suggested that vascular depletion of Axl reduced vein graft stiffness. Axl expression determined the STAT1-SOCS1 balance in vein graft intima and progression of the remodeling. The results of this investigation demonstrate that Axl promotes STAT1 signaling via inhibition of SOCS1 in activated smooth muscle cells in vein graft remodeling.
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Affiliation(s)
- Sri N Batchu
- Department of Medicine, Aab Cardiovascular Research Institute, University of Rochester School of Medicine and Dentistry, Rochester, New York; and
| | - Jixiang Xia
- Department of Medicine, Aab Cardiovascular Research Institute, University of Rochester School of Medicine and Dentistry, Rochester, New York; and
| | - Kyung Ae Ko
- Department of Medicine, Aab Cardiovascular Research Institute, University of Rochester School of Medicine and Dentistry, Rochester, New York; and
| | - Marvin M Doyley
- Department of Electrical and Computer Engineering, University of Rochester and Hajim School of Engineering and Applied Sciences, Rochester, New York; and
| | - Jun-Ichi Abe
- University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Craig N Morrell
- Department of Medicine, Aab Cardiovascular Research Institute, University of Rochester School of Medicine and Dentistry, Rochester, New York; and
| | - Vyacheslav A Korshunov
- Department of Medicine, Aab Cardiovascular Research Institute, University of Rochester School of Medicine and Dentistry, Rochester, New York; and Department of Biomedical Genetics, University of Rochester School of Medicine and Dentistry, Rochester, New York;
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41
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Liu Y, Wang Y, Shi H, Jia L, Cheng J, Cui W, Li H, Li P, Du J. CARD9 mediates necrotic smooth muscle cell-induced inflammation in macrophages contributing to neointima formation of vein grafts. Cardiovasc Res 2015; 108:148-58. [PMID: 26243429 DOI: 10.1093/cvr/cvv211] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2015] [Accepted: 07/27/2015] [Indexed: 12/11/2022] Open
Abstract
AIMS Inflammation plays an important role in the neointima formation of grafted veins. However, the initiation of inflammation in grafted veins is still unclear. Here, we investigated the role and underlying mechanism of an innate immunity signalling protein, caspase-associated recruitment domain 9 (CARD9) in vein grafts in mice. METHODS AND RESULTS In early murine vein grafts, we observed robust death of smooth muscle cells (SMCs), which was accompanied by infiltration of macrophages and expression of pro-inflammatory cytokines. Meanwhile, SMC necrosis was associated with the expression of pro-inflammatory cytokines in macrophages in vitro. To explore the mediators of necrotic SMC-induced inflammation in grafted veins from mice, we examined the expression of CARD family proteins and found CARD9 highly expressed in infiltrated macrophages of grafted veins. CARD9-knockout (KO) inhibited necrotic SMC-induced pro-inflammatory cytokine expression and NF-κB activation. Furthermore, CARD9-KO suppressed necrotic SMC-induced expression of VEGF in macrophages. Finally, CARD9-KO decreased neointima formation of grafted veins in mice. CONCLUSION The innate immune protein CARD9 in macrophages may mediate necrotic SMC-induced inflammation by activating NF-κB and contributed to neointima formation in the vein grafts.
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Affiliation(s)
- Yan Liu
- Beijing Anzhen Hospital, Capital Medical University, The Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing Institute of Heart Lung and Blood Vessel Diseases, Beijing Collaborative Innovative Research Center for Cardiovascular Diseases, Beijing 100029, China
| | - Ying Wang
- Beijing Anzhen Hospital, Capital Medical University, The Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing Institute of Heart Lung and Blood Vessel Diseases, Beijing Collaborative Innovative Research Center for Cardiovascular Diseases, Beijing 100029, China
| | - Hongtao Shi
- Beijing Anzhen Hospital, Capital Medical University, The Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing Institute of Heart Lung and Blood Vessel Diseases, Beijing Collaborative Innovative Research Center for Cardiovascular Diseases, Beijing 100029, China
| | - Lixin Jia
- Beijing Anzhen Hospital, Capital Medical University, The Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing Institute of Heart Lung and Blood Vessel Diseases, Beijing Collaborative Innovative Research Center for Cardiovascular Diseases, Beijing 100029, China
| | - Jizhong Cheng
- Beijing Anzhen Hospital, Capital Medical University, The Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing Institute of Heart Lung and Blood Vessel Diseases, Beijing Collaborative Innovative Research Center for Cardiovascular Diseases, Beijing 100029, China
| | - Wei Cui
- Beijing Anzhen Hospital, Capital Medical University, The Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing Institute of Heart Lung and Blood Vessel Diseases, Beijing Collaborative Innovative Research Center for Cardiovascular Diseases, Beijing 100029, China
| | - Huihua Li
- Beijing Anzhen Hospital, Capital Medical University, The Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing Institute of Heart Lung and Blood Vessel Diseases, Beijing Collaborative Innovative Research Center for Cardiovascular Diseases, Beijing 100029, China
| | - Ping Li
- Beijing Anzhen Hospital, Capital Medical University, The Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing Institute of Heart Lung and Blood Vessel Diseases, Beijing Collaborative Innovative Research Center for Cardiovascular Diseases, Beijing 100029, China
| | - Jie Du
- Beijing Anzhen Hospital, Capital Medical University, The Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing Institute of Heart Lung and Blood Vessel Diseases, Beijing Collaborative Innovative Research Center for Cardiovascular Diseases, Beijing 100029, China
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Kim J, Procknow JD, Yanagisawa H, Wagenseil JE. Differences in genetic signaling, and not mechanical properties of the wall, are linked to ascending aortic aneurysms in fibulin-4 knockout mice. Am J Physiol Heart Circ Physiol 2015; 309:H103-13. [PMID: 25934097 PMCID: PMC4491524 DOI: 10.1152/ajpheart.00178.2015] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2015] [Accepted: 04/30/2015] [Indexed: 12/21/2022]
Abstract
Fibulin-4 is an extracellular matrix protein that is essential for proper assembly of arterial elastic fibers. Mutations in fibulin-4 cause cutis laxa with thoracic aortic aneurysms (TAAs). Sixty percent of TAAs occur in the ascending aorta (AA). Newborn mice lacking fibulin-4 (Fbln4(-/-)) have aneurysms in the AA, but narrowing in the descending aorta (DA), and are a unique model to investigate locational differences in aneurysm susceptibility. We measured mechanical behavior and gene expression of AA and DA segments in newborn Fbln4(-/-) and Fbln4(+/+) mice. Fbln4(-/-) AA has increased diameters compared with Fbln4(+/+) AA and Fbln4(-/-) DA at most applied pressures, confirming genotypic and locational specificity of the aneurysm phenotype. When diameter compliance and tangent modulus were calculated from the mechanical data, we found few significant differences between genotypes, suggesting that the mechanical response to incremental diameter changes is similar, despite the fragmented elastic fibers in Fbln4(-/-) aortas. Fbln4(-/-) aortas showed a trend toward increased circumferential stretch, which may be transmitted to smooth muscle cells (SMCs) in the wall. Gene expression data suggest activation of pathways for SMC proliferation and inflammation in Fbln4(-/-) aortas compared with Fbln4(+/+). Additional genes in both pathways, as well as matrix metalloprotease-8 (Mmp8), are upregulated specifically in Fbln4(-/-) AA compared with Fbln4(+/+) AA and Fbln4(-/-) DA. Mmp8 is a neutrophil collagenase that targets type 1 collagen, and upregulation may be necessary to allow diameter expansion in Fbln4(-/-) AA. Our results provide molecular and mechanical targets for further investigation in aneurysm pathogenesis.
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MESH Headings
- Acute-Phase Proteins/genetics
- Acute-Phase Proteins/metabolism
- Animals
- Animals, Newborn
- Aorta/metabolism
- Aorta/physiopathology
- Aorta/ultrastructure
- Aorta, Thoracic/metabolism
- Aorta, Thoracic/physiopathology
- Aorta, Thoracic/ultrastructure
- Aortic Aneurysm, Thoracic/genetics
- Calcium-Binding Proteins
- Collagen Type VIII/genetics
- Collagen Type VIII/metabolism
- Cyclooxygenase 2/genetics
- Cyclooxygenase 2/metabolism
- Elastic Modulus
- Epiregulin/genetics
- Epiregulin/metabolism
- Extracellular Matrix Proteins/genetics
- Gene Expression Profiling
- Heparin-binding EGF-like Growth Factor/genetics
- Heparin-binding EGF-like Growth Factor/metabolism
- Matrix Metalloproteinase 8/genetics
- Matrix Metalloproteinase 8/metabolism
- Mice
- Mice, Knockout
- Microscopy, Electron
- Muscle Proteins/genetics
- Muscle Proteins/metabolism
- Muscle, Smooth, Vascular/cytology
- Muscle, Smooth, Vascular/metabolism
- Myocytes, Smooth Muscle/metabolism
- Myocytes, Smooth Muscle/ultrastructure
- Nuclear Proteins/genetics
- Nuclear Proteins/metabolism
- RNA, Messenger/metabolism
- Receptors, Cell Surface/genetics
- Receptors, Cell Surface/metabolism
- Receptors, G-Protein-Coupled
- Repressor Proteins/genetics
- Repressor Proteins/metabolism
- Reverse Transcriptase Polymerase Chain Reaction
- Serpins/genetics
- Serpins/metabolism
- Up-Regulation
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Affiliation(s)
- Jungsil Kim
- Department of Mechanical Engineering and Materials Science, Washington University, St. Louis, Missouri
| | - Jesse D Procknow
- Department of Mechanical Engineering and Materials Science, Washington University, St. Louis, Missouri
| | - Hiromi Yanagisawa
- Department of Molecular Biology, University of Texas Southwestern Medical Center, Dallas, Texas; and Life Science Center of Tsukuba Advanced Research Alliance, University of Tsukuba, Tsukuba, Japan
| | - Jessica E Wagenseil
- Department of Mechanical Engineering and Materials Science, Washington University, St. Louis, Missouri;
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43
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In Vitro Study of a Medical Device to Enhance Arteriovenous Fistula Eligibility and Maturation. ASAIO J 2015; 61:480-6. [PMID: 26120958 DOI: 10.1097/mat.0000000000000240] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
The arteriovenous fistula eligibility (AFE) system (Flow Forward Medical, Olathe, KS) is a small, temporary, wearable rotary blood pump system designed to rapidly dilate peripheral veins in hemodialysis patients and improve outcomes after arteriovenous fistula (AVF) creation. A benchtop pulsatile mock circulatory loop was developed to model forearm circulation and to compare the hemodynamics of the AFE system with those of a conventional radiocephalic AVF. The AFE system maintained a mean wall shear stress (mWSS) within the 2.5-7.5 Pa target range for cephalic outflow veins of 2-6 mm diameter, which when applied clinically will provide better control of mWSS during the outflow vein maturation process when compared with a conventional AVF. These results support further study to determine whether or not vein preconditioning with the AFE system under controlled levels of mWSS will promote improved AVF outcomes.
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44
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Luo J, Liang M, Mitch WE, Danesh FR, Yu M, Cheng J. FSP-1 Impairs the Function of Endothelium Leading to Failure of Arteriovenous Grafts in Diabetic Mice. Endocrinology 2015; 156:2200-10. [PMID: 25774552 PMCID: PMC4430603 DOI: 10.1210/en.2014-1841] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
To understand how endothelial cell (EC) dysfunction contributes to the failure of arteriovenous graft (AVG), we investigated the role of fibroblast-specific protein 1 (FSP-1) in cultured ECs and a mouse AVG model. In vitro, we uncovered a new FSP-1-dependent pathway that activates rho-associated, coiled-coil-containing protein kinase 1 (ROCK1) in ECs, leading to phosphorylation of myosin light chain 2 resulting in EC dysfunction. In cultured ECs, high glucose stimulated FSP-1 expression and increased permeability of an EC monolayer. The increase in permeability by the high glucose concentration was mediated by FSP-1 expression. Treatment of cultured ECs with FSP-1 caused leakage of the endothelial barrier plus increased expression of adhesion molecules and decreased expression of junction molecules. These responses were initiated by binding of FSP-1 to receptor for advanced glycation end products, which resulted in ROCK1 activation. In vivo, diabetes increased infiltration of inflammatory cells into AVGs and stimulated neointima formation. Increased FSP-1 expression and ROCK1 activation were found in AVGs of diabetic mice. Blocking FSP-1 suppressed diabetes-induced ROCK1 activation in AVGs. In mice with FSP-1 knockout or with ROCK1 knockout, accumulation of inflammatory cells and neointima formation in AVG were attenuated despite diabetes. Thus, mechanisms of inhibiting FSP-1 in ECs could improve AVG function.
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Affiliation(s)
- Jinlong Luo
- Nephrology Division (J.L., M.L., W.E.M., M.Y., J.C.), Baylor College of Medicine, Houston, Texas 77030; Emergency Medicine (F.R.D.), University of Texas MD Anderson Cancer Center, Houston, Texas 77030; and Department of Emergency (J.L.), Tongji Hospital, Huazhong University of Science and Technology, Wuhan, China 430074
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45
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Liang M, Woodard LE, Liang A, Luo J, Wilson MH, Mitch WE, Cheng J. Protective role of insulin-like growth factor-1 receptor in endothelial cells against unilateral ureteral obstruction-induced renal fibrosis. THE AMERICAN JOURNAL OF PATHOLOGY 2015; 185:1234-50. [PMID: 25783760 DOI: 10.1016/j.ajpath.2015.01.027] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 08/28/2014] [Revised: 01/13/2015] [Accepted: 01/15/2015] [Indexed: 12/17/2022]
Abstract
Insulin-like growth factor-1 receptor (IGF-1R) can regulate vascular homeostasis and endothelial function. We studied the role of IGF-1R in oxidative stress-induced endothelial dysfunction. Unilateral ureteral obstruction (UUO) was performed in wild-type (WT) mice and mice with endothelial cell (EC)-specific IGF-1R knockout (KO). After UUO in endothelial IGF-1R KO mice, endothelial barrier dysfunction was more severe than in WT mice, as seen by increased inflammatory cell infiltration and vascular endothelial (VE)-cadherin phosphorylation. UUO in endothelial IGF-1R KO mice increased interstitial fibroblast accumulation and enhanced extracellular protein deposition as compared with the WT mice. Endothelial barrier function measured by transendothelial migration in response to hydrogen peroxide (H2O2) was impaired in ECs. Silencing IGF-1R enhanced the influence of H2O2 in disrupting the VE-protein tyrosine phosphatase/VE-cadherin interaction. Overexpression of IGF-1R suppressed H2O2-induced endothelial barrier dysfunction. Furthermore, by using the piggyBac transposon system, we expressed IGF-1R in VE cells in mice. The expression of IGF-1R in ECs also suppressed the inflammatory cell infiltration and renal fibrosis induced by UUO. IGF-1R KO in the VE-cadherin lineage of bone marrow cells had no significant effect on the UUO-induced fibrosis, as compared with control mice. Our results indicate that IGF-1R in the endothelium maintains the endothelial barrier function by stabilization of the VE-protein tyrosine phosphatase/VE-cadherin complex. Decreased expression of IGF-1R impairs endothelial function and increases the fibrosis of kidney disease.
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Affiliation(s)
- Ming Liang
- Department of Nephrology, Guangzhou First People's Hospital, Guangzhou Medical University, Guangzhou, China; Nephrology Division, Department of Medicine, Baylor College of Medicine, Houston, Texas
| | - Lauren E Woodard
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University, and Department of Veterans Affairs, Nashville, Tennessee
| | - Anlin Liang
- Nephrology Division, Department of Medicine, Baylor College of Medicine, Houston, Texas
| | - Jinlong Luo
- Nephrology Division, Department of Medicine, Baylor College of Medicine, Houston, Texas
| | - Matthew H Wilson
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University, and Department of Veterans Affairs, Nashville, Tennessee
| | - William E Mitch
- Nephrology Division, Department of Medicine, Baylor College of Medicine, Houston, Texas
| | - Jizhong Cheng
- Nephrology Division, Department of Medicine, Baylor College of Medicine, Houston, Texas.
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46
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Peng X, Xiao Z, Zhang J, Li Y, Dong Y, Du J. IL-17A produced by bothγδT and Th17 cells promotes renal fibrosis via RANTES-mediated leukocyte infiltration after renal obstruction. J Pathol 2014; 235:79-89. [PMID: 25158055 DOI: 10.1002/path.4430] [Citation(s) in RCA: 85] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2014] [Revised: 08/06/2014] [Accepted: 08/17/2014] [Indexed: 01/11/2023]
Affiliation(s)
- Xiaogang Peng
- Beijing AnZhen Hospital; Affiliated to Capital Medical University, Beijing Institute of Heart, Lung and Blood Vessel Diseases. The Key Laboratory of Remodeling-related Cardiovascular Diseases, Ministry of Education; Beijing China
| | - Zhicheng Xiao
- Beijing AnZhen Hospital; Affiliated to Capital Medical University, Beijing Institute of Heart, Lung and Blood Vessel Diseases. The Key Laboratory of Remodeling-related Cardiovascular Diseases, Ministry of Education; Beijing China
| | - Jing Zhang
- Beijing AnZhen Hospital; Affiliated to Capital Medical University, Beijing Institute of Heart, Lung and Blood Vessel Diseases. The Key Laboratory of Remodeling-related Cardiovascular Diseases, Ministry of Education; Beijing China
| | - Yulin Li
- Beijing AnZhen Hospital; Affiliated to Capital Medical University, Beijing Institute of Heart, Lung and Blood Vessel Diseases. The Key Laboratory of Remodeling-related Cardiovascular Diseases, Ministry of Education; Beijing China
| | - Yanjun Dong
- Beijing AnZhen Hospital; Affiliated to Capital Medical University, Beijing Institute of Heart, Lung and Blood Vessel Diseases. The Key Laboratory of Remodeling-related Cardiovascular Diseases, Ministry of Education; Beijing China
| | - Jie Du
- Beijing AnZhen Hospital; Affiliated to Capital Medical University, Beijing Institute of Heart, Lung and Blood Vessel Diseases. The Key Laboratory of Remodeling-related Cardiovascular Diseases, Ministry of Education; Beijing China
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47
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Xiao Z, Zhang J, Peng X, Dong Y, Jia L, Li H, Du J. The Notch γ-secretase inhibitor ameliorates kidney fibrosis via inhibition of TGF-β/Smad2/3 signaling pathway activation. Int J Biochem Cell Biol 2014; 55:65-71. [PMID: 25150830 DOI: 10.1016/j.biocel.2014.08.009] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2014] [Revised: 07/30/2014] [Accepted: 08/13/2014] [Indexed: 12/24/2022]
Abstract
Kidney fibrosis is a common feature of chronic kidney disease (CKD). A recent study suggests that abnormal Notch signaling activation contributes to the development of renal fibrosis. However, the molecular mechanism that regulates this process remains unexplored. Unilateral ureteral obstruction (UUO) or sham-operated C57BL6 mice (aged 10 weeks) were randomly assigned to receive dibenzazepine (DBZ, 250 μg/100g/d) or vehicle for 7 days. Histologic examinations were performed on the kidneys using Masson's trichrome staining and immunohistochemistry. Real-time PCR and western blot analysis were used for detection of mRNA expression and protein phosphorylation. The expression of Notch 1, 3, and 4, Notch intracellular domain (NICD), and its target genes Hes1 and HeyL were upregulated in UUO mice, while the increase in NICD protein was significantly attenuated by DBZ. After 7 days, the severity of renal fibrosis and expression of fibrotic markers, including collagen 1α1/3α1, fibronectin, and α-smooth muscle actin, were markedly increased in UUO compared with sham mice. In contrast, administration of DBZ markedly attenuated these effects. Furthermore, DBZ significantly inhibited UUO-induced expression of transforming growth factor (TGF)-β, phosphorylated Smad 2, and Smad 3. Mechanistically, Notch signaling activation in tubular epithelial cells enhanced fibroblast proliferation and activation in a coculture experiment. Our study provides evidence that Notch signaling is implicated in renal fibrogenesis. The Notch inhibitor DBZ can ameliorate this process via inhibition of the TGF-β/Smad2/3 signaling pathway, and might be a novel drug for preventing chronic kidney disease.
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Affiliation(s)
- Zhicheng Xiao
- Beijing AnZhen Hospital, Capital Medical University, The Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Beijing, China
| | - Jing Zhang
- Beijing AnZhen Hospital, Capital Medical University, The Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Beijing, China
| | - Xiaogang Peng
- Beijing AnZhen Hospital, Capital Medical University, The Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Beijing, China
| | - Yanjun Dong
- Beijing AnZhen Hospital, Capital Medical University, The Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Beijing, China
| | - Lixin Jia
- Beijing AnZhen Hospital, Capital Medical University, The Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Beijing, China
| | - Huihua Li
- Department of Physiology and Pathophysiology, Capital Medical University, Beijing, China
| | - Jie Du
- Beijing AnZhen Hospital, Capital Medical University, The Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Beijing, China.
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48
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Liu X, Zhang T, He S, Hong B, Chen Z, Peng D, Wu Y, Wen H, Lin Z, Fang Y, Jiang K. Elevated serum levels of FGF-2, NGF and IGF-1 in patients with manic episode of bipolar disorder. Psychiatry Res 2014; 218:54-60. [PMID: 24793757 DOI: 10.1016/j.psychres.2014.03.042] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/18/2013] [Revised: 02/15/2014] [Accepted: 03/29/2014] [Indexed: 01/17/2023]
Abstract
Multiple neurotrophic and/or growth factors, recently nominated as "angioneurins", play the key roles in mood modulation and neuroplasticity, and their dysfunction might be involved in the pathophysiology and treatment of mood disorders. We examined serum levels of vascular endothelial growth factor (VEGF), fibroblast growth factor (FGF)-2, nerve growth factor (NGF) and insulin-like growth factor (IGF)-1 in 70 drug-naïve or drug-free patients with manic episode of bipolar disorder and 50 healthy controls, using the enzyme-linked immunosorbent assay (ELISA) method. The results showed that mean serum levels of VEGF, FGF-2, NGF and IGF-1 were 168.13±225.61pg/ml, 279.09±378.62pg/ml, 61.38±171.67pg/ml and 162.01±72.00ng/ml in patients, and 140.80±143.71pg/ml, 275.46±235.29pg/ml, 36.34±15.14pg/ml and 138.90±80.11ng/ml in healthy controls, respectively. Serum levels of FGF-2, NGF and IGF-1 in patients were significantly higher than those in healthy controls, though there was no statistical difference in serum VEGF level between two groups. Moreover, serum NGF level in patients was significantly correlated with duration of disorder and times of previous manic episodes. We conclude that the increase of serum FGF-2, NGF and IGF-1 levels in manic state of bipolar disorder may be associated with their compensatory roles of neuroprotection and angiogenesis, and these angioneurins may be involved in the pathophysiology of bipolar disorder.
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Affiliation(s)
- Xiaohua Liu
- Department of Psychiatry, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, 600 South Wanping Road, Shanghai 200030, PR China.
| | - Tianhong Zhang
- Department of Psychiatry, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, 600 South Wanping Road, Shanghai 200030, PR China
| | - Shen He
- Department of Psychiatry, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, 600 South Wanping Road, Shanghai 200030, PR China
| | - Bo Hong
- Department of Psychiatry, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, 600 South Wanping Road, Shanghai 200030, PR China
| | - Zheng Chen
- Department of Psychiatry, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, 600 South Wanping Road, Shanghai 200030, PR China
| | - Daihui Peng
- Department of Psychiatry, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, 600 South Wanping Road, Shanghai 200030, PR China
| | - Yan Wu
- Department of Psychiatry, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, 600 South Wanping Road, Shanghai 200030, PR China
| | - Hui Wen
- Department of Psychiatry, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, 600 South Wanping Road, Shanghai 200030, PR China
| | - Zhiguang Lin
- Biochemistry Laboratory, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, PR China
| | - Yiru Fang
- Department of Psychiatry, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, 600 South Wanping Road, Shanghai 200030, PR China
| | - Kaida Jiang
- Department of Psychiatry, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, 600 South Wanping Road, Shanghai 200030, PR China
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Liang M, Liang A, Wang Y, Jiang J, Cheng J. Smooth muscle cells from the anastomosed artery are the major precursors for neointima formation in both artery and vein grafts. Basic Res Cardiol 2014; 109:431. [PMID: 25107324 DOI: 10.1007/s00395-014-0431-z] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2014] [Revised: 07/28/2014] [Accepted: 07/30/2014] [Indexed: 12/01/2022]
Abstract
Accumulation of smooth muscle cells (SMC) results in neointima formation in injured vessels. Two graft models consisting of vein and artery grafts were created by anastomosing common carotid arteries to donor vessels. To identify the origin of the neointima cells from anastomosed arteries, we use Wnt1-Cre/reporter mice to label and track SMCs in the common carotid artery. The contribution of SMCs in the neighboring arteries to neointima formation was studied. On evaluating the artery grafts after 1 month, >90 % of the labeled neointima cells were found to have originated from the anastomosing host arteries. Most of the neointima cells were also smooth muscle α-actin positive (SMA-α(+)) and expressed the smooth muscle myosin heavy chain (SMMHC), the SMC terminal differentiation marker. In vein grafts, about 60 % SMA-α-positive cells were from anastomosing arteries. Bone marrow cells did not contribute to neointima SMCs in vein grafts, but did co-stain with markers of inflammatory cells. Wnt1 expression was not detected in the neointima cells in the vein or artery grafts, or the injured femoral arteries. Neointima SMCs showed the synthetic phenotype and were positively labeled with BrdU in vitro and in vivo. Treatment with the IGF-1 receptor inhibitor suppressed SMC proliferation and neointima formation in vein grafts. Our results indicate that SMCs from the neighboring artery are predominantly present in the neointima formed in both vein and artery grafts and that Wnt1-Cre mice can be used to explore the role of SMCs originating from neighboring vessels in vascular remodeling.
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Affiliation(s)
- Ming Liang
- Department of Nephrology, Guangzhou First People's Hospital, Guangzhou Medical University, Guangzhou, China
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50
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Cao H, Hu X, Zhang Q, Wang J, Li J, Liu B, Shao Y, Li X, Zhang J, Xin S. Upregulation of let-7a inhibits vascular smooth muscle cell proliferation in vitro and in vein graft intimal hyperplasia in rats. J Surg Res 2014; 192:223-33. [PMID: 24953987 DOI: 10.1016/j.jss.2014.05.045] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2014] [Revised: 05/09/2014] [Accepted: 05/16/2014] [Indexed: 11/28/2022]
Abstract
BACKGROUND Proliferation of vascular smooth muscle cells (VSMCs) is a crucial event in the pathogenesis of intimal hyperplasia, which is the main cause of restenosis after vascular reconstruction. In this study, we assessed the impact of let-7a microRNA (miRNA) on the proliferation of VSMCs. METHODS Using miRNA microarrays analysis for miRNA expression in the vein graft model. Lentiviral vector-mediated let-7a was transfected into the vein grafts. In situ hybridization was performed to detect let-7a. Cultured rat VSMCs were transfected with let-7a mimics for different periods of time. Cell proliferation, migration and cell cycle activity were monitored following transfection of the let-7a mimics. Immunohistochemical and Western blotting analysis the expression levels of c-myc and K-ras. RESULTS We found that let-7a was the most downregulated miRNA in the vein graft model. In vivo proliferation of VSMCs was assessed in a rat model of venous graft intimal hyperplasia. Let-7a was found to localize mainly to the VSMCs. Let-7a miRNA expression was increased in VSMCs in the neointima of the let-7a treated group. Intimal hyperplasia was suppressed by upregulation of let-7a via lentiviral vector-mediated mimics. In cultured VSMCs, the expression of let-7a increased upon starving, and the upregulation of let-7a miRNA significantly decreased cell proliferation and migration. Immunohistochemical and Western blotting analysis demonstrated that treatment with let-7a mimics resulted in decreased expression levels of c-myc and K-ras. CONCLUSIONS The results indicate that let-7a miRNA is a novel regulator of VSMC proliferation in intimal hyperplasia. These findings suggest that let-7a miRNA is a promising therapeutic target for the prevention of intimal hyperplasia.
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Affiliation(s)
- Hui Cao
- Department of Vascular Surgery, The First Affiliated Hospital, China Medical University, Shenyang, China
| | - Xinhua Hu
- Department of Vascular Surgery, The First Affiliated Hospital, China Medical University, Shenyang, China.
| | - Qiang Zhang
- Department of Vascular Surgery, The First Affiliated Hospital, China Medical University, Shenyang, China
| | - Junpeng Wang
- Department of Vascular Surgery, The First Affiliated Hospital, China Medical University, Shenyang, China
| | - Jun Li
- Department of Vascular Surgery, The First Affiliated Hospital, China Medical University, Shenyang, China
| | - Bing Liu
- Department of Vascular Surgery, The First Affiliated Hospital, China Medical University, Shenyang, China
| | - Yang Shao
- Department of Vascular Surgery, The First Affiliated Hospital, China Medical University, Shenyang, China
| | - Xi Li
- Department of Vascular Surgery, The First Affiliated Hospital, China Medical University, Shenyang, China
| | - Jian Zhang
- Department of Vascular Surgery, The First Affiliated Hospital, China Medical University, Shenyang, China
| | - Shijie Xin
- Department of Vascular Surgery, The First Affiliated Hospital, China Medical University, Shenyang, China
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