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Zhao X, Cheng Z, Zhang H, Guo Y, Zhao L, Zhang C, Ye P, Zhang K, Ma X, Wu Q. Glucagon-Like Peptide-1 Inhibits the Progression of Abdominal Aortic Aneurysm in Mice: The Earlier, the Better. Cardiovasc Drugs Ther 2024; 38:873-884. [PMID: 37145254 DOI: 10.1007/s10557-023-07456-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 04/19/2023] [Indexed: 05/06/2023]
Abstract
OBJECTIVES Glucagon-like peptide-1 (GLP-1) has a cardiovascular protective effect by preventing abdominal aortic aneurysm (AAA) formation. However, it is unclear at what point the agent should be administered to achieve the optimal effect. In this study, we aimed to determine whether administering the GLP-1 receptor agonist liraglutide during the earlier stages would more efficiently inhibit AAA progression in mice. METHODS Depending on the group, mice were given a daily dose of 300 μg/kg liraglutide for 28 days at 7, 14, and 28 days after aneurysm induction. The morphology of the abdominal aorta was monitored using 7.0 T magnetic resonance imaging (MRI) during the administration of liraglutide. After 28 days of administration, the AAA dilatation ratio was calculated, and histopathological examination was performed. Oxidative stress levels were evaluated by the expression of malondialdehyde (MDA) and matrix metalloproteinases (MMPs). The inflammatory response was also evaluated. RESULTS Liraglutide treatment led to a decrease in AAA formation, including a reduction in abdominal aorta expansion, elastin degradation in the elastic laminae, and vascular inflammation caused by leukocyte infiltration. The expression of MDA and the activity of MMPs (MMP-2, MMP-9) also decreased. Notably, administering liraglutide during the early stages resulted in a significant reduction in the dilatation rate of the aortic wall, as well as in MDA expression, leukocyte infiltration, and MMP activity in the vascular wall. CONCLUSIONS The GLP-1 receptor agonist liraglutide was found to inhibit AAA progression in mice by exerting anti-inflammatory and antioxidant effects, particularly during the early stages of AAA formation. Therefore, liraglutide may represent a potential pharmacological target for the treatment of AAA.
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MESH Headings
- Animals
- Aortic Aneurysm, Abdominal/drug therapy
- Aortic Aneurysm, Abdominal/pathology
- Aortic Aneurysm, Abdominal/chemically induced
- Aortic Aneurysm, Abdominal/prevention & control
- Aortic Aneurysm, Abdominal/metabolism
- Liraglutide/pharmacology
- Disease Progression
- Aorta, Abdominal/drug effects
- Aorta, Abdominal/pathology
- Male
- Oxidative Stress/drug effects
- Mice, Inbred C57BL
- Glucagon-Like Peptide-1 Receptor/agonists
- Glucagon-Like Peptide-1 Receptor/metabolism
- Disease Models, Animal
- Matrix Metalloproteinase 9/metabolism
- Matrix Metalloproteinase 2/metabolism
- Malondialdehyde/metabolism
- Mice
- Time Factors
- Dilatation, Pathologic
- Vascular Remodeling/drug effects
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Affiliation(s)
- Xinghan Zhao
- Department of Interventional therapy, Beijing Anzhen Hospital, Capital Medical University, No. 2 Anzhen Road, Beijing, China
| | - Zhang Cheng
- Department of Interventional therapy, Beijing Anzhen Hospital, Capital Medical University, No. 2 Anzhen Road, Beijing, China
| | - Hongbo Zhang
- Department of Interventional therapy, Beijing Anzhen Hospital, Capital Medical University, No. 2 Anzhen Road, Beijing, China
| | - Yingkun Guo
- Department of Radiology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, 610041, People's Republic of China
- Development and Related Diseases of Women and Children Key Laboratory of Sichuan Province, Sichuan University, West China Second University Hospital, Sichuan, 610041, Chengdu, People's Republic of China
| | - Lei Zhao
- Department of Radiology, Beijing Anzhen Hospital, Capital Medical University, No. 2 Anzhen Road, Beijing, China
| | - Chen Zhang
- Department of Interventional therapy, Beijing Anzhen Hospital, Capital Medical University, No. 2 Anzhen Road, Beijing, China
| | - Pengfei Ye
- Department of Radiology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, 610041, People's Republic of China
| | - Kun Zhang
- Development and Related Diseases of Women and Children Key Laboratory of Sichuan Province, Sichuan University, West China Second University Hospital, Sichuan, 610041, Chengdu, People's Republic of China
| | - Xiaohai Ma
- Department of Interventional therapy, Beijing Anzhen Hospital, Capital Medical University, No. 2 Anzhen Road, Beijing, China.
| | - Qihong Wu
- Development and Related Diseases of Women and Children Key Laboratory of Sichuan Province, Sichuan University, West China Second University Hospital, Sichuan, 610041, Chengdu, People's Republic of China.
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Jia K, Luo X, Yi J, Zhang C. Hormonal influence: unraveling the impact of sex hormones on vascular smooth muscle cells. Biol Res 2024; 57:61. [PMID: 39227995 PMCID: PMC11373308 DOI: 10.1186/s40659-024-00542-w] [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: 04/30/2024] [Accepted: 08/26/2024] [Indexed: 09/05/2024] Open
Abstract
Sex hormones play a pivotal role as endocrine hormones that exert profound effects on the biological characteristics and vascular function of vascular smooth muscle cells (VSMCs). By modulating intracellular signaling pathways, activating nuclear receptors, and regulating gene expression, sex hormones intricately influence the morphology, function, and physiological state of VSMCs, thereby impacting the biological properties of vascular contraction, relaxation, and growth. Increasing evidence suggests that abnormal phenotypic changes in VSMCs contribute to the initiation of vascular diseases, including atherosclerosis. Therefore, understanding the factors governing phenotypic alterations in VSMCs and elucidating the underlying mechanisms can provide crucial insights for refining interventions targeted at vascular diseases. Additionally, the varying levels of different types of sex hormones in the human body, influenced by sex and age, may also affect the phenotypic conversion of VSMCs. This review aims to explore the influence of sex hormones on the phenotypic switching of VSMCs and the development of associated vascular diseases in the human body.
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Affiliation(s)
- Keran Jia
- Department of Medical Cell Biology and Genetics, School of Basic Medical Sciences, Basic Medicine Research Innovation Center for Cardiometabolic Diseases, Ministry of Education, Southwest Medical University, Luzhou, Sichuan, 646000, China
| | - Xin Luo
- Department of Medical Cell Biology and Genetics, School of Basic Medical Sciences, Basic Medicine Research Innovation Center for Cardiometabolic Diseases, Ministry of Education, Southwest Medical University, Luzhou, Sichuan, 646000, China
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan, 646000, China
| | - Jingyan Yi
- Department of Medical Cell Biology and Genetics, School of Basic Medical Sciences, Basic Medicine Research Innovation Center for Cardiometabolic Diseases, Ministry of Education, Southwest Medical University, Luzhou, Sichuan, 646000, China.
| | - Chunxiang Zhang
- Department of Cardiology, The Affiliated Hospital, Basic Medicine Research Innovation Center for Cardiometabolic Diseases, Ministry of Education, Southwest Medical University, Luzhou, Sichuan, 646000, China.
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3
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Chen X, Obukhov AG, Weisman GA, Seye CI. Basal ATP release signals through the P2Y 2 receptor to maintain the differentiated phenotype of vascular smooth muscle cells. Atherosclerosis 2024; 395:117613. [PMID: 38889566 PMCID: PMC11254552 DOI: 10.1016/j.atherosclerosis.2024.117613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 05/30/2024] [Accepted: 05/30/2024] [Indexed: 06/20/2024]
Abstract
BACKGROUND AND AIMS Vascular smooth muscle cell (VSMC) dedifferentiation contributes substantively to vascular disease. VSMCs spontaneously release low levels of ATP that modulate vessel contractility, but it is unclear if autocrine ATP signaling in VSMCs is critical to the maintenance of the VSMC contractile phenotype. METHODS We used pharmacological inhibitors to block ATP release in human aortic smooth muscle cells (HASMCs) for studying changes in VSMC differentiation marker gene expression. We employed RNA interference and generated mice with SMC-specific inducible deletion of the P2Y2 receptor (P2Y2R) gene to evaluate resulting phenotypic alterations. RESULTS HASMCs constitutively release low levels of ATP that when blocked results in a significant decrease in VSMC differentiation marker gene expression, including smooth muscle actin (SMA), smooth muscle myosin heavy chain (SMMHC), SM-22α and calponin. Basal release of ATP represses transcriptional activation of the Krüppel-Like Factor 4 (KFL4) thereby preventing platelet-derived growth factor-BB (PDGF-BB) from inhibiting expression of SMC contractile phenotype markers. SMC-restricted conditional deletion of P2Y2R evoked dedifferentiation characterized by decreases in aortic contractility and contractile phenotype markers expression. This loss was accompanied by a transition to the synthetic phenotype with the acquisition of extracellular matrix (ECM) proteins characteristic of dedifferentiation, such as osteopontin and vimentin. CONCLUSIONS Our data establish the first direct evidence that an autocrine ATP release mechanism maintains SMC cytoskeletal protein expression by inhibiting VSMCs from transitioning to a synthetic phenotype, and further demonstrate that activation of the P2Y2R by basally released ATP is required for maintenance of the differentiated VSMC phenotype.
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Affiliation(s)
- Xingjuan Chen
- Institute of Medical Research, Northwestern Polytechnical University, Xi'an, 710072, China; Department of Anatomy, Cell Biology & Physiology, Indiana University School of Medicine, 635 Barnhill Drive MS 360A, Indianapolis, IN, 46202, USA
| | - Alexander G Obukhov
- Department of Anatomy, Cell Biology & Physiology, Indiana University School of Medicine, 635 Barnhill Drive MS 360A, Indianapolis, IN, 46202, USA
| | - Gary A Weisman
- Department of Biochemistry, Christopher S. Bond Life Sciences Center, University of Missouri, 1201 Rollins Road, Columbia, MO, 65211, USA
| | - Cheikh I Seye
- Department of Biochemistry, Christopher S. Bond Life Sciences Center, University of Missouri, 1201 Rollins Road, Columbia, MO, 65211, USA.
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4
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Chen N, Wu S, Zhi K, Zhang X, Guo X. ZFP36L1 controls KLF16 mRNA stability in vascular smooth muscle cells during restenosis after vascular injury. J Mol Cell Cardiol 2024; 192:13-25. [PMID: 38653384 DOI: 10.1016/j.yjmcc.2024.04.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/10/2023] [Revised: 04/15/2024] [Accepted: 04/18/2024] [Indexed: 04/25/2024]
Abstract
The RNA-binding zinc finger protein 36 (ZFP36) family participates in numerous physiological processes including transition and differentiation through post-transcriptional regulation. ZFP36L1 is a member of the ZFP36 family. This study aimed to evaluate the role of ZFP36L1 in restenosis. We found that the expression of ZFP36L1 was inhibited in VSMC-phenotypic transformation induced by TGF-β, PDGF-BB, and FBS and also in the rat carotid injury model. In addition, we found that the overexpression of ZFP36L1 inhibited the proliferation and migration of VSMCs and promoted the expression of VSMC contractile genes; whereas ZFP36L1 interference promoted the proliferation and migration of VSMCs and suppressed the expression of contractile genes. Furthermore, the RNA binding protein immunoprecipitation and double luciferase reporter gene experiments shows that ZFP36L1 regulates the phenotypic transformation of VSMCs through the posttranscriptional regulation of KLF16. Finally, our research results in the rat carotid balloon injury animal model further confirmed that ZFP36L1 regulates the phenotypic transformation of VSMCs through the posttranscriptional regulation of KLF16 and further plays a role in vascular injury and restenosis in vivo.
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Affiliation(s)
- Ningheng Chen
- Department of Vascular surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Shiyong Wu
- Department of Vascular surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Kangkang Zhi
- Department of Vascular surgery, Second Affiliated Hospital of Naval Medical University, Shanghai, China.
| | - Xiaoping Zhang
- Clinical Nuclear Medicine Center, Imaging Clinical Medical Center, Institute of Nuclear Medicine, Department of Nuclear Medicine, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai 200072, China.
| | - Xueli Guo
- Department of Vascular surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.
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Huang K, Chen S, Yu LJ, Wu ZM, Chen QJ, Wang XQ, Li FF, Liu JM, Wang YX, Mao LS, Shen WF, Zhang RY, Shen Y, Lu L, Dai Y, Ding FH. Serum secreted phosphoprotein 1 level is associated with plaque vulnerability in patients with coronary artery disease. Front Immunol 2024; 15:1285813. [PMID: 38426091 PMCID: PMC10902157 DOI: 10.3389/fimmu.2024.1285813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Accepted: 02/01/2024] [Indexed: 03/02/2024] Open
Abstract
Background Vulnerable plaque was associated with recurrent cardiovascular events. This study was designed to explore predictive biomarkers of vulnerable plaque in patients with coronary artery disease. Methods To reveal the phenotype-associated cell type in the development of vulnerable plaque and to identify hub gene for pathological process, we combined single-cell RNA and bulk RNA sequencing datasets of human atherosclerotic plaques using Single-Cell Identification of Subpopulations with Bulk Sample Phenotype Correlation (Scissor) and Weighted gene co-expression network analysis (WGCNA). We also validated our results in an independent cohort of patients by using intravascular ultrasound during coronary angiography. Results Macrophages were found to be strongly correlated with plaque vulnerability while vascular smooth muscle cell (VSMC), fibrochondrocyte (FC) and intermediate cell state (ICS) clusters were negatively associated with unstable plaque. Weighted gene co-expression network analysis showed that Secreted Phosphoprotein 1 (SPP1) in the turquoise module was highly correlated with both the gene module and the clinical traits. In a total of 593 patients, serum levels of SPP1 were significantly higher in patients with vulnerable plaques than those with stable plaque (113.21 [73.65 - 147.70] ng/ml versus 71.08 [20.64 - 135.68] ng/ml; P < 0.001). Adjusted multivariate regression analysis revealed that serum SPP1 was an independent determinant of the presence of vulnerable plaque. Receiver operating characteristic curve analysis indicated that the area under the curve was 0.737 (95% CI 0.697 - 0.773; P < 0.001) for adding serum SPP1 in predicting of vulnerable plaques. Conclusion Elevated serum SPP1 levels confer an increased risk for plaque vulnerability in patients with coronary artery disease.
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Affiliation(s)
- Ke Huang
- Department of Vascular and Cardiology, Rui Jin Hospital Shanghai Jiaotong University School of Medicine, Shanghai, China
- Institute of Cardiovascular Diseases, Shanghai Jiaotong University, School of Medicine, Shanghai, China
| | - Shuai Chen
- Department of Vascular and Cardiology, Rui Jin Hospital Shanghai Jiaotong University School of Medicine, Shanghai, China
- Institute of Cardiovascular Diseases, Shanghai Jiaotong University, School of Medicine, Shanghai, China
| | - Lin-Jun Yu
- Department of Vascular and Cardiology, Rui Jin Hospital Shanghai Jiaotong University School of Medicine, Shanghai, China
- Shanghai Clinical Research Center for Interventional Medicine, Shanghai, China
| | - Zhi-Ming Wu
- Department of Vascular and Cardiology, Rui Jin Hospital Shanghai Jiaotong University School of Medicine, Shanghai, China
- Institute of Cardiovascular Diseases, Shanghai Jiaotong University, School of Medicine, Shanghai, China
| | - Qiu-Jing Chen
- Institute of Cardiovascular Diseases, Shanghai Jiaotong University, School of Medicine, Shanghai, China
| | - Xiao-Qun Wang
- Department of Vascular and Cardiology, Rui Jin Hospital Shanghai Jiaotong University School of Medicine, Shanghai, China
- Institute of Cardiovascular Diseases, Shanghai Jiaotong University, School of Medicine, Shanghai, China
| | - Fei-Fei Li
- Department of Vascular and Cardiology, Rui Jin Hospital Shanghai Jiaotong University School of Medicine, Shanghai, China
- Institute of Cardiovascular Diseases, Shanghai Jiaotong University, School of Medicine, Shanghai, China
| | - Jing-Meng Liu
- Department of Vascular and Cardiology, Rui Jin Hospital Shanghai Jiaotong University School of Medicine, Shanghai, China
- Institute of Cardiovascular Diseases, Shanghai Jiaotong University, School of Medicine, Shanghai, China
| | - Yi-Xuan Wang
- Department of Vascular and Cardiology, Rui Jin Hospital Shanghai Jiaotong University School of Medicine, Shanghai, China
- Institute of Cardiovascular Diseases, Shanghai Jiaotong University, School of Medicine, Shanghai, China
| | - Lin-Shuang Mao
- Department of Vascular and Cardiology, Rui Jin Hospital Shanghai Jiaotong University School of Medicine, Shanghai, China
- Institute of Cardiovascular Diseases, Shanghai Jiaotong University, School of Medicine, Shanghai, China
| | - Wei-Feng Shen
- Department of Vascular and Cardiology, Rui Jin Hospital Shanghai Jiaotong University School of Medicine, Shanghai, China
- Institute of Cardiovascular Diseases, Shanghai Jiaotong University, School of Medicine, Shanghai, China
| | - Rui-Yan Zhang
- Department of Vascular and Cardiology, Rui Jin Hospital Shanghai Jiaotong University School of Medicine, Shanghai, China
- Institute of Cardiovascular Diseases, Shanghai Jiaotong University, School of Medicine, Shanghai, China
| | - Ying Shen
- Institute of Cardiovascular Diseases, Shanghai Jiaotong University, School of Medicine, Shanghai, China
| | - Lin Lu
- Department of Vascular and Cardiology, Rui Jin Hospital Shanghai Jiaotong University School of Medicine, Shanghai, China
- Institute of Cardiovascular Diseases, Shanghai Jiaotong University, School of Medicine, Shanghai, China
| | - Yang Dai
- Department of Vascular and Cardiology, Rui Jin Hospital Shanghai Jiaotong University School of Medicine, Shanghai, China
- Institute of Cardiovascular Diseases, Shanghai Jiaotong University, School of Medicine, Shanghai, China
| | - Feng-Hua Ding
- Department of Vascular and Cardiology, Rui Jin Hospital Shanghai Jiaotong University School of Medicine, Shanghai, China
- Shanghai Clinical Research Center for Interventional Medicine, Shanghai, China
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Wang X, Gui N, Ma X, Zeng Y, Mo T, Zhang M. Proliferation, migration and phenotypic transformation of VSMC induced via Hcy related to up-expression of WWP2 and p-STAT3. PLoS One 2024; 19:e0296359. [PMID: 38166045 PMCID: PMC10760878 DOI: 10.1371/journal.pone.0296359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Accepted: 12/10/2023] [Indexed: 01/04/2024] Open
Abstract
To provide a theoretical basis for the prevention and treatment of atherosclerosis (AS), the current study aimed to investigate the mechanism underlying the effect of homocysteine (Hcy) on regulating the proliferation, migration and phenotypic transformation of vascular smooth muscle cells (VSMC) via sirtuin-1 (SIRT1)/signal transducer and activator of transcription 3 (STAT3) through Nedd4-like E3 ubiquitin-protein ligase WWP2 (WWP2). Here, Based on the establishment of ApoE-/- mouse models of high Hcy As and the model of Hcy stimulation of VSMC in vitro to observe the interaction between WWP2 and STAT3 and its effect on the proliferation, migration, and phenotypic transformation of Hcy-induced VSMC, which has not been previously reported. This study revealed that WWP2 could promote the proliferation, migration, and phenotype switch of Hcy-induced VSMC by up-regulating the phosphorylation of SIRT1/STAT3 signaling. Furthermore, Hcy might up-regulate WWP2 expression by inhibiting histone H3K27me3 expression through up-regulated UTX. These data suggest that WWP2 is a novel and important regulator of Hcy-induced VSMC proliferation, migration, and phenotypic transformation.
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Affiliation(s)
- Xiuyu Wang
- Department of Pathophysiology, School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, Ningxia, P.R. China
- Key Laboratory of Metabolic Cardiovascular Diseases Research of National Health Commission, Ningxia Key Laboratory of Vascular Injury and Repair Research, Yinchuan, Ningxia, P.R. China
| | - Na Gui
- Department of Pathophysiology, School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, Ningxia, P.R. China
| | - Xing Ma
- Key Laboratory of Metabolic Cardiovascular Diseases Research of National Health Commission, Ningxia Key Laboratory of Vascular Injury and Repair Research, Yinchuan, Ningxia, P.R. China
| | - Yue Zeng
- Key Laboratory of Metabolic Cardiovascular Diseases Research of National Health Commission, Ningxia Key Laboratory of Vascular Injury and Repair Research, Yinchuan, Ningxia, P.R. China
| | - Tingrun Mo
- Department of Pathophysiology, School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, Ningxia, P.R. China
| | - Minghao Zhang
- Department of Pathophysiology, School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, Ningxia, P.R. China
- Key Laboratory of Metabolic Cardiovascular Diseases Research of National Health Commission, Ningxia Key Laboratory of Vascular Injury and Repair Research, Yinchuan, Ningxia, P.R. China
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Kadoglou NPE, Khattab E, Velidakis N, Gkougkoudi E. The Role of Osteopontin in Atherosclerosis and Its Clinical Manifestations (Atherosclerotic Cardiovascular Diseases)-A Narrative Review. Biomedicines 2023; 11:3178. [PMID: 38137398 PMCID: PMC10740720 DOI: 10.3390/biomedicines11123178] [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: 10/10/2023] [Revised: 11/15/2023] [Accepted: 11/20/2023] [Indexed: 12/24/2023] Open
Abstract
Atherosclerotic cardiovascular diseases (ASCVDs) are the most common and severe public health problem nowadays. Osteopontin (OPN) is a multifunctional glycoprotein highly expressed at atherosclerotic plaque, which has emerged as a potential biomarker of ASCVDs. OPN may act as an inflammatory mediator and/or a vascular calcification (VC) mediator, contributing to atherosclerosis progression and eventual plaque destabilization. In this article, we discuss the complex role of OPN in ASCVD pathophysiology, since many in vitro and in vivo experimental data indicate that OPN contributes to macrophage activation and differentiation, monocyte infiltration, vascular smooth muscle cell (VSMC) migration and proliferation and lipid core formation within atherosclerotic plaques. Most but not all studies reported that OPN may inhibit atherosclerotic plaque calcification, making it "vulnerable". Regarding clinical evidence, serum OPN levels may become a biomarker of coronary artery disease (CAD) presence and severity. Significantly higher OPN levels have been found in patients with acute coronary syndromes than those with stable CAD. In limited studies of patients with peripheral artery disease, circulating OPN concentrations may be predictive of future major adverse cardiovascular events. Overall, the current literature search suggests the contribution of OPN to atherosclerosis development and progression, but more robust evidence is required.
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Affiliation(s)
- Nikolaos P. E. Kadoglou
- Medical School, University of Cyprus, 215/6 Old Road Lefkosis-Lemesou, Aglatzia, Nicosia CY 2029, Cyprus; (E.K.); (N.V.); (E.G.)
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Zhang W, Chen J, Tan X, Zhang P, Xu X, Ding X, Zhao S, Jin S. Emodin Inhibits the Indoxyl Sulfate-Induced trans-Differentiation of Vascular Smooth Muscle Cells through Upregulating Thrombospondin-1. J Vasc Res 2023; 60:193-203. [PMID: 37669629 PMCID: PMC10614470 DOI: 10.1159/000532028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Accepted: 06/21/2023] [Indexed: 09/07/2023] Open
Abstract
BACKGROUND Indoxyl sulfate (IS) is a protein-bound uremic toxin with vascular toxicity. The primary cause of death in uremic patients on maintenance hemodialysis is vascular disease, and it had been reported that vascular smooth muscle cells (VSMCs) trans-differentiation (VT) plays a vital role in the context of vascular diseases, but the underlying mechanisms remain obscure. Thrombospondin-1 (TSP-1) participates in vascular calcification by keeping the balance of extracellular matrix, but its role in IS-induced VT is unclear. METHODS In this study, clinical specimens, animal models, and in vitro VSMCs were used to investigate the role of TSP-1 in IS induced VT and the potential therapeutic methods. RESULTS We found that TSP-1 was significantly decreased in arterial samples from uremic patients, animal models, and in VSMCs after IS treatment. Downregulation of TSP-1 sufficiently induced the trans-differentiation genotypes of VSMCs. CONCLUSION Emodin, the main monomer extracted from rhubarb, could alleviate IS-induced VT in vitro by upregulating TSP-1. Taken together, IS induces VT by downregulating TSP-1. Emodin might be a candidate drug to alleviate VT under IS treatment.
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Affiliation(s)
- Weidong Zhang
- Department of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Jing Chen
- Department of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Xiao Tan
- Department of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Pan Zhang
- Department of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Xialian Xu
- Department of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Xiaoqiang Ding
- Department of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China
- Shanghai Key Laboratory of Kidney and Blood Purification, Shanghai, China
- Shanghai Medical Center of Kidney, Shanghai, China
| | - Shuan Zhao
- Department of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China
- Shanghai Key Laboratory of Kidney and Blood Purification, Shanghai, China
| | - Shi Jin
- Department of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China
- Shanghai Key Laboratory of Kidney and Blood Purification, Shanghai, China
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9
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Shinozaki R, Eguchi R, Wakabayashi I. Experimental conditions and protein markers for redifferentiation of human coronary artery smooth muscle cells. Biomed Rep 2023; 18:24. [PMID: 36846618 PMCID: PMC9944247 DOI: 10.3892/br.2023.1606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Accepted: 01/17/2023] [Indexed: 02/15/2023] Open
Abstract
A phenotype switch from contractile type to proliferative type of arterial smooth muscle cells is known as dedifferentiation, but to the best of our knowledge, little is known about redifferentiation of coronary artery smooth muscle cells. The purpose of the present study was to determine in vitro culture conditions for inducing redifferentiation of coronary artery smooth muscle cells. In addition, the present study aimed to determine protein markers for detection of redifferentiated arterial smooth muscle cells. Human coronary artery smooth muscle cells (HCASMCs) were cultured in the presence or absence of growth factors, including epidermal growth factor, fibroblast growth factor-B and insulin. Protein expression and migration activity of HCASMCs were evaluated using western blotting and migration assay, respectively. In HCASMCs 5 days after 100% confluency, expression levels of α-smooth muscle actin (α-SMA), calponin, caldesmon and SM22α were significantly increased, while expression levels of proliferation cell nuclear antigen (PCNA) and S100A4 and migration activity were significantly decreased, compared with the corresponding levels just after reaching 100% confluency, indicating that redifferentiation occurred. Redifferentiation was also induced in a low-density culture of HCASMCs in the medium without growth factors. When the culture medium for confluent cells was replaced daily with fresh medium, the expression levels of α-SMA, caldesmon, SM22α, PCNA and S100A4 and migration activity were not significantly different but the calponin expression was significantly increased compared with the levels in dedifferentiated cells just after reaching 100% confluency. Thus, redifferentiation was induced in HCASMCs by deprivation of growth factors from culture medium. The results suggested that α-SMA, caldesmon and SM22α, but not calponin, are markers of redifferentiation of HCASMCs.
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Affiliation(s)
- Ryota Shinozaki
- Department of Environmental and Preventive Medicine, School of Medicine, Hyogo Medical University, Nishinomiya, Hyogo 663-8501, Japan
| | - Ryoji Eguchi
- Department of Environmental and Preventive Medicine, School of Medicine, Hyogo Medical University, Nishinomiya, Hyogo 663-8501, Japan,Department of Biochemistry, Asahikawa Medical University, Asahikawa, Hokkaido 078-8510, Japan
| | - Ichiro Wakabayashi
- Department of Environmental and Preventive Medicine, School of Medicine, Hyogo Medical University, Nishinomiya, Hyogo 663-8501, Japan,Correspondence to: Professor Ichiro Wakabayashi, Department of Environmental and Preventive Medicine, School of Medicine, Hyogo Medical University, 1-1 Mukogawa-cho, Nishinomiya, Hyogo 663-8501, Japan
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10
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Pan Y, Chen M, Lash GE. Role of osteopontin (OPN) in uterine spiral artery remodeling. Placenta 2022; 126:70-75. [PMID: 35780519 DOI: 10.1016/j.placenta.2022.06.014] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Accepted: 06/26/2022] [Indexed: 10/17/2022]
Abstract
Uterine spiral artery (SpA) remodeling is critical for a successful pregnancy. The deficiency of SpA remodeling seriously affects the blood perfusion of the placenta, impacting the nutritional supply to the fetus and therefore fetal growth and development, which is one of the pathological causes of pregnancy related diseases. This process involves the interaction between all cells and related factors at the maternal-fetal interface, especially extravillous trophoblast cells (EVT), vascular smooth muscle cells (VSMCs) and decidual immune cells. Osteopontin (OPN), as a glycosylated protein, is widely localized in the extracellular matrix and participates in a variety of cellular activities such as migration, adhesion, differentiation and survival. OPN plays an important role in placental development, uterine decidualization and pregnancy success. This study focuses on the role of OPN in uterine spiral artery remodeling and its related molecular mechanism.
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Affiliation(s)
- Yue Pan
- Division of Uterine Vascular Biology, Guangzhou Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Miaojuan Chen
- Division of Uterine Vascular Biology, Guangzhou Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Gendie E Lash
- Division of Uterine Vascular Biology, Guangzhou Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China.
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11
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Chen B, Tao W, Yan L, Zeng M, Song L, Huang Z, Chen F. Molecular feature of arterial remodeling in the brain arteriovenous malformation revealed by arteriovenous shunt rat model and RNA sequencing. Int Immunopharmacol 2022; 107:108653. [PMID: 35247777 DOI: 10.1016/j.intimp.2022.108653] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 02/05/2022] [Accepted: 02/20/2022] [Indexed: 11/30/2022]
Abstract
PURPOSE Morphological research suggested the feeding artery of brain arteriovenous malformation (bAVM) had vascular remodeling under the high blood flow; however, the underlying molecular mechanisms were unclear. METHODS We constructed 32 simplified AVM rat models in four groups: the control group (n = 6), 1-week high-blood-flow group (n = 9), 3-week high-blood-flow group (n = 7) and 6-week high-blood-flow group (n = 10). The circumference, blood velocity, blood flow, pressure, and wall shear of the feeding artery were measured or calculated. The arterial wall change was observed by Masson staining. RNA sequencing (RNA-seq) of feeding arteries was performed, followed by bioinformatics analysis to detect the potential molecular mechanism for bAVM artery remodeling under the high blood flow. RESULTS We observed hemodynamic injury and vascular remodeling on the feeding artery under the high blood flow. RNA-seq showed immune/inflammation infiltration and vascular smooth muscle cell (VSMC) phenotype transformation during remodeling. Weighted gene co-expression network analysis (WGCNA) and time series analysis further identified 27 key genes and pathways involved in remodeling. Upstream miRNA and molecular drugs were predicted targeting these key genes. CONCLUSIONS We depicted molecular change of bAVM arterial remodeling via RNA-seq in high-blood-flow rat models. Twenty-seven key genes may regulate immune/inflammation infiltration and VSMC phenotype transform in bAVM arterial remodeling.
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Affiliation(s)
- Bo Chen
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, Hunan, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Wengui Tao
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, Hunan, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Langchao Yan
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, Hunan, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Ming Zeng
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, Hunan, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Laixin Song
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, Hunan, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China; Department of Neurosurgery, The Second Affiliated Hospital of Mudanjiang Medical College, Mudanjiang, Heilongjiang, China; Department of Surgery, Mudanjiang Huimin Hospital, Mudanjiang, Heilongjiang, China
| | - Zheng Huang
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, Hunan, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Fenghua Chen
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, Hunan, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China.
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12
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Rackow AR, Judge JL, Woeller CF, Sime PJ, Kottmann RM. miR-338-3p blocks TGFβ-induced myofibroblast differentiation through the induction of PTEN. Am J Physiol Lung Cell Mol Physiol 2022; 322:L385-L400. [PMID: 34986654 PMCID: PMC8884407 DOI: 10.1152/ajplung.00251.2021] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Idiopathic pulmonary fibrosis (IPF) is a chronic interstitial lung disease. The pathogenesis of IPF is not completely understood. However, numerous genes are associated with the development and progression of pulmonary fibrosis, indicating there is a significant genetic component to the pathogenesis of IPF. Epigenetic influences on the development of human disease, including pulmonary fibrosis, remain to be fully elucidated. In this paper, we identify miR-338-3p as a microRNA severely downregulated in the lungs of patients with pulmonary fibrosis and in experimental models of pulmonary fibrosis. Treatment of primary human lung fibroblasts with miR-338-3p inhibits myofibroblast differentiation and matrix protein production. Published and proposed targets of miR-338-3p such as TGFβ receptor 1, MEK/ERK 1/2, Cdk4, and Cyclin D are also not responsible for the regulation of pulmonary fibroblast behavior by miR-338-3p. miR-338-3p inhibits myofibroblast differentiation by preventing TGFβ-mediated downregulation of phosphatase and tensin homolog (PTEN), a known antifibrotic mediator.
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Affiliation(s)
- Ashley R. Rackow
- 1Lung Biology and Disease Program, University of Rochester Medical Center Rochester, Rochester, New York,2Department of Environmental Medicine, University of Rochester Medical Center Rochester, Rochester, New York
| | | | - Collynn F. Woeller
- 2Department of Environmental Medicine, University of Rochester Medical Center Rochester, Rochester, New York,4Department of Ophthalmology, University of Rochester Medical Center, Rochester, New York
| | - Patricia J. Sime
- 5Division of Pulmonary Disease and Critical Care Medicine, Virginia Commonwealth University, Richmond, Virginia
| | - Robert M. Kottmann
- 1Lung Biology and Disease Program, University of Rochester Medical Center Rochester, Rochester, New York,2Department of Environmental Medicine, University of Rochester Medical Center Rochester, Rochester, New York,6Division of Pulmonary Disease and Critical Care Medicine, University of Rochester Medical Center, Rochester, New York
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13
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Ortega MA, Asúnsolo Á, Pekarek L, Alvarez-Mon MA, Delforge A, Sáez MA, Coca S, Sainz F, Mon MÁ, Buján J, García-Honduvilla N. Histopathological study of JNK in venous wall of patients with chronic venous insufficiency related to osteogenesis process. Int J Med Sci 2021; 18:1921-1934. [PMID: 33850461 PMCID: PMC8040408 DOI: 10.7150/ijms.54052] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Accepted: 02/11/2021] [Indexed: 12/14/2022] Open
Abstract
Chronic venous insufficiency (CVI) is one of the most common vascular pathologies worldwide. One of the risk factors for the development of CVI is aging, which is why it is related to senile changes. The main trigger of the changes that occur in the venous walls in CVI is blood flow reflux, which produces increased hydrostatic pressure, leading to valve incompetence. The cellular response is one of the fundamental processes in vascular diseases, causing the activation of cell signalling pathways such as c-Jun N-terminal kinase (JNK). Metabolic changes and calcifications occur in vascular pathology as a result of pathophysiological processes. The aim of this study was to determine the expression of JNK in venous disease and its relationship with the role played by the molecules involved in the osteogenic processes in venous tissue calcification. This was a cross-sectional study that analyzed the greater saphenous vein wall in 110 patients with (R) and without venous reflux (NR), classified according to age. Histopathological techniques were used and protein expression was analysed using immunohistochemistry techniques for JNK and markers of osteogenesis (RUNX2, osteocalcin (OCN), osteopontin (OPN)). Significantly increased JNK, RUNX2, OCN, OPN and pigment epithelium-derived factor (PEDF) protein expression and the presence of osseous metaplasia and amorphous calcification were observed in younger patients (<50 years) with venous reflux. This study shows for the first time the existence of an osteogenesis process related to the expression of JNK in the venous wall.
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Affiliation(s)
- Miguel A Ortega
- Department of Medicine and Medical Specialities, Faculty of Medicine and Health Sciences, University of Alcalá, Alcalá de Henares, Madrid, Spain
- Ramón y Cajal Institute of Healthcare Research (IRYCIS), Madrid, Spain
- Cancer Registry and Pathology Department, Hospital Universitario Principe de Asturias, Alcalá de Henares, Madrid, Spain
| | - Ángel Asúnsolo
- Ramón y Cajal Institute of Healthcare Research (IRYCIS), Madrid, Spain
- Department of Surgery, Medical and Social Sciences, Faculty of Medicine and Health Sciences, University of Alcalá, Alcalá de Henares, Madrid, Spain
| | - Leonel Pekarek
- Department of Medicine and Medical Specialities, Faculty of Medicine and Health Sciences, University of Alcalá, Alcalá de Henares, Madrid, Spain
| | - Miguel A Alvarez-Mon
- Department of Medicine and Medical Specialities, Faculty of Medicine and Health Sciences, University of Alcalá, Alcalá de Henares, Madrid, Spain
| | - Arnaud Delforge
- UFR of pharmacy, University of Clermont Auvergne, Clermont-Ferrand, France
| | - Miguel A Sáez
- Department of Medicine and Medical Specialities, Faculty of Medicine and Health Sciences, University of Alcalá, Alcalá de Henares, Madrid, Spain
- Pathological Anatomy Service, Central University Hospital of Defence-UAH Madrid, Spain
| | - Santiago Coca
- Department of Medicine and Medical Specialities, Faculty of Medicine and Health Sciences, University of Alcalá, Alcalá de Henares, Madrid, Spain
- Cancer Registry and Pathology Department, Hospital Universitario Principe de Asturias, Alcalá de Henares, Madrid, Spain
| | - Felipe Sainz
- Ramón y Cajal Institute of Healthcare Research (IRYCIS), Madrid, Spain
- Angiology and Vascular Surgery Service, Central University Hospital of Defence-UAH Madrid, Spain
| | - Melchor Álvarez- Mon
- Department of Medicine and Medical Specialities, Faculty of Medicine and Health Sciences, University of Alcalá, Alcalá de Henares, Madrid, Spain
- Cancer Registry and Pathology Department, Hospital Universitario Principe de Asturias, Alcalá de Henares, Madrid, Spain
- Immune System Diseases-Rheumatology, Oncology Service and Internal Medicine, University Hospital Príncipe de Asturias, Alcalá de Henares, Madrid, Spain
| | - Julia Buján
- Department of Medicine and Medical Specialities, Faculty of Medicine and Health Sciences, University of Alcalá, Alcalá de Henares, Madrid, Spain
- Cancer Registry and Pathology Department, Hospital Universitario Principe de Asturias, Alcalá de Henares, Madrid, Spain
| | - Natalio García-Honduvilla
- Department of Medicine and Medical Specialities, Faculty of Medicine and Health Sciences, University of Alcalá, Alcalá de Henares, Madrid, Spain
- Cancer Registry and Pathology Department, Hospital Universitario Principe de Asturias, Alcalá de Henares, Madrid, Spain
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14
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He J, Li N, Fan Y, Zhao X, Liu C, Hu X. Metformin Inhibits Abdominal Aortic Aneurysm Formation through the Activation of the AMPK/mTOR Signaling Pathway. J Vasc Res 2021; 58:148-158. [PMID: 33601368 DOI: 10.1159/000513465] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Accepted: 11/26/2020] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND AND OBJECTIVE Epidemiological evidence suggests that the antidiabetic drug metformin (MET) can also inhibit abdominal aortic aneurysm (AAA) formation. However, the underlying protective mechanism remains unknown. It has been reported that phosphorylated AMP-activated protein kinase (AMPK) levels are significantly lower in AAA tissues than control aortic tissues. AMPK activation can inhibit the downstream signaling molecule called mechanistic target of rapamycin (mTOR), which has also been reported be upregulated in thoracic aneurysms. Thus, blocking mTOR signaling could attenuate AAA progression. MET is a known agonist of AMPK. Therefore, in this study, we investigated if MET could inhibit formation of AAA by activating the AMPK/mTOR signaling pathway. MATERIALS AND METHODS The AAA animal model was induced by intraluminal porcine pancreatic elastase (PPE) perfusion in male Sprague Dawley rats. The rats were treated with MET or compound C (C.C), which is an AMPK inhibitor. AAA formation was monitored by serial ultrasound. Aortas were collected 4 weeks after surgery and subjected to immunohistochemistry, Western blot, and transmission electron microscopy analyses. RESULTS MET treatment dramatically inhibited the formation of AAA 4 weeks after PPE perfusion. MET reduced the aortic diameter, downregulated both macrophage infiltration and matrix metalloproteinase expression, decreased neovascularization, and preserved the contractile phenotype of the aortic vascular smooth muscle cells. Furthermore, we detected an increase in autophagy after MET treatment. All of these effects were reversed by the AMPK inhibitor C.C. CONCLUSION This study demonstrated that MET activates AMPK and suppresses AAA formation. Our study provides a novel mechanism for MET and suggests that MET could be potentially used as a therapeutic candidate for preventing AAA.
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MESH Headings
- AMP-Activated Protein Kinases/metabolism
- Animals
- Aorta, Abdominal/drug effects
- Aorta, Abdominal/enzymology
- Aorta, Abdominal/ultrastructure
- Aortic Aneurysm, Abdominal/chemically induced
- Aortic Aneurysm, Abdominal/enzymology
- Aortic Aneurysm, Abdominal/pathology
- Aortic Aneurysm, Abdominal/prevention & control
- Dilatation, Pathologic
- Disease Models, Animal
- Enzyme Activation
- Macrophages/drug effects
- Macrophages/metabolism
- Male
- Metformin/pharmacology
- Neovascularization, Pathologic
- Pancreatic Elastase
- Phosphorylation
- Rats, Sprague-Dawley
- Signal Transduction
- TOR Serine-Threonine Kinases/metabolism
- Vascular Remodeling/drug effects
- Rats
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Affiliation(s)
- Jiaan He
- Department of Vascular Surgery, The First Affiliated Hospital, China Medical University, Shenyang, China
| | - Nan Li
- Department of Vascular Surgery, The First Affiliated Hospital, China Medical University, Shenyang, China
| | - Yichuan Fan
- Department of Vascular Surgery, The First Affiliated Hospital, China Medical University, Shenyang, China
| | - Xingzhi Zhao
- Department of Vascular Surgery, The First Affiliated Hospital, China Medical University, Shenyang, China
| | - Chengwei Liu
- Department of Vascular Surgery, The First Affiliated Hospital of Jiamusi University, Jiamusi, China
| | - Xinhua Hu
- Department of Vascular Surgery, The First Affiliated Hospital, China Medical University, Shenyang, China,
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15
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Han JH, Park HS, Lee DH, Jo JH, Heo KS, Myung CS. Regulation of autophagy by controlling Erk1/2 and mTOR for platelet-derived growth factor-BB-mediated vascular smooth muscle cell phenotype shift. Life Sci 2021; 267:118978. [PMID: 33412209 DOI: 10.1016/j.lfs.2020.118978] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Revised: 12/16/2020] [Accepted: 12/22/2020] [Indexed: 12/26/2022]
Abstract
AIMS Vascular smooth muscle cell (VSMC) phenotype shift is involved in the pathophysiology of vascular injury or platelet-derived growth factor (PDGF)-induced abnormal proliferation and migration of VSMCs. We aimed to investigate the underlying mechanism involved in PDGF-mediated signaling pathways and autophagy regulation followed by VSMC phenotype shift. MAIN METHODS The proliferation, migration and apoptosis of cultured rat aortic VSMCs were measured, and cells undergoing phenotype shift and autophagy were examined. Specific inhibitors for target proteins in signaling pathways were applied to clarify their roles in regulating cell functions. KEY FINDINGS PDGF-BB stimulation initiated autophagy activation and synthetic phenotype transition by decreasing α-smooth muscle-actin (SMA), calponin and myosin heavy chain (MHC) and increasing osteopontin (OPN) expression. However, U0126, a potent extracellular signal-regulated kinase 1/2 (Erk1/2) inhibitor, decreased PDGF-BB-induced LC3 expression, while rapamycin, an inhibitor of the mammalian target of rapamycin (mTOR), increased it. Furthermore, U0126 decreased the expresseion of autophagy-related genes (Atgs) such as beclin-1, Atg7, Atg5, and Atg12-Atg5 complex, indicating that Erk1/2 is a regulator of PDGF-BB-induced VSMC autophagy. Regardless of autophagy inhibition by U0126 or activation by rapamycin, the PDGF-BB-induced decrease in SMA, calponin and MHC and increase in OPN expression were inhibited. Furthermore, PDGF-BB-stimulated VSMC proliferation, migration and proliferating cell nuclear antigen (PCNA) expression were inhibited by U0126 and rapamycin. SIGNIFICANCE These findings suggest that PDGF-BB-induced autophagy is strongly regulated by Erk1/2, an mTOR-independent pathway, and any approach for targeting autophagy modulation is a potential therapeutic strategy for addressing abnormal VSMC proliferation and migration.
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Affiliation(s)
- Joo-Hui Han
- Department of Pharmacology, Chungnam National University College of Pharmacy, Daejeon 34134, Republic of Korea; Institute of Drug Research & Development, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Hyun-Soo Park
- Department of Pharmacology, Chungnam National University College of Pharmacy, Daejeon 34134, Republic of Korea
| | - Do-Hyung Lee
- Department of Pharmacology, Chungnam National University College of Pharmacy, Daejeon 34134, Republic of Korea
| | - Jun-Hwan Jo
- Department of Pharmacology, Chungnam National University College of Pharmacy, Daejeon 34134, Republic of Korea
| | - Kyung-Sun Heo
- Department of Pharmacology, Chungnam National University College of Pharmacy, Daejeon 34134, Republic of Korea
| | - Chang-Seon Myung
- Department of Pharmacology, Chungnam National University College of Pharmacy, Daejeon 34134, Republic of Korea; Institute of Drug Research & Development, Chungnam National University, Daejeon 34134, Republic of Korea.
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16
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Liu F, Shan S, Li H, Li Z. Treatment of Peroxidase Derived from Foxtail Millet Bran Attenuates Atherosclerosis by Inhibition of CD36 and STAT3 in Vitro and in Vivo. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:1276-1285. [PMID: 31965794 DOI: 10.1021/acs.jafc.9b06963] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Atherosclerosis is one of the main causes of cardiovascular diseases. Our previous study indicated that a type of peroxidase derived from foxtail millet bran (FMBP) had prominent antitumor activities. In the present study, we found that FMBP had potential antiatherosclerosis effects. The results showed that FMBP treatment strongly suppressed lipid phagocytosis in both HASMCs and THP-1 cells by 52% and 49%, respectively. Further, FMBP significantly inhibited HASMCs migration by promoting transformation of HASMCs from synthetic to contractile, leading to the decrease of lipid phagocytosis. Simultaneously, FMBP repressed lipid uptake by reducing the expression of CD36 in THP-1 cells. In addition, FMBP reduced the secretion of inflammatory factor IL-1β by inhibiting the expression of STAT3 in THP-1 cells. Interestingly, FMBP also had the same effects in models of atherosclerosis constructed with ApoE-/- mice, including decreased aortic lesion area, repressed aortic sinus CD36 and STAT3 expression, and elevated serum HDL-C concentration. Collectively, these results indicate that FMBP has great potential in preventing the development of atherosclerosis.
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17
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Abstract
Inflammatory cytokines are necessary for an acute response to injury and the progressive healing process. However, when this acute response does not resolve and becomes chronic, the same proteins that once promoted healing then contribute to chronic inflammatory pathologies, such as atherosclerosis. OPN (Osteopontin) is a secreted matricellular cytokine that signals through integrin and CD44 receptors, is highly upregulated in acute and chronic inflammatory settings, and has been implicated in physiological and pathophysiologic processes. Evidence from the literature suggests that OPN may fit within the Goldilocks paradigm with respect to cardiovascular disease, where acute increases are protective, attenuate vascular calcification, and promote postischemic neovascularization. In contrast, chronic increases in OPN are clinically associated with an increased risk for a major adverse cardiovascular event, and OPN expression is a strong predictor of cardiovascular disease independent of traditional risk factors. With the recent finding that humans express multiple OPN isoforms as the result of alternative splicing and that these isoforms have distinct biologic functions, future studies are required to determine what OPN isoform(s) are expressed in the setting of vascular disease and what role each of these isoforms plays in vascular disease progression. This review aims to discuss our current understanding of the role(s) of OPN in vascular disease pathologies using evidence from in vitro, animal, and clinical studies. Where possible, we discuss what is known about OPN isoform expression and our understanding of OPN isoform contributions to cardiovascular disease pathologies.
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Affiliation(s)
- Zoe Shin Yee Lok
- Department of Surgery, School of Clinical Sciences, Monash Health, Clayton, Australia (Z.S.Y.L.)
| | - Alicia N Lyle
- From the Division of Cardiology, Department of Medicine, Emory University School of Medicine, Atlanta, GA (A.N.L.)
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18
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Corpus cavernosum smooth muscle cell dysfunction and phenotype transformation are related to erectile dysfunction in prostatitis rats with chronic prostatitis/chronic pelvic pain syndrome. JOURNAL OF INFLAMMATION-LONDON 2020; 17:2. [PMID: 31911760 PMCID: PMC6945598 DOI: 10.1186/s12950-019-0233-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Accepted: 12/29/2019] [Indexed: 01/09/2023]
Abstract
Background The relationship between chronic prostatitis/chronic pelvic pain syndrome (CP/CPPS) and erectile dysfunction (ED) has been shown in many studies. However, the specific mechanism remains unclear. This study was to investigate the corpus cavernosum smooth muscle cell function and phenotype transformation in Experimental autoimmune prostatitis (EAP) rats. Methods EAP was induced in rats by using prostate protein supplemented with immuneadjuvant extraction, and the max-ICP and MAP were measured. IHC and Masson staining were done to assess inflammatory infiltration and collagen deposition in the corpus cavernosum, respectively. Subsequently, normal rat and EAP rat CCSMCs were purified by tissue block implantation and differential adherence method. The oxidative stress, smooth muscle phenotype transformation, cell cycle and intracellular calcium ion transport were also evaluated. Results The ratio of max ICP/MAP in EAP rats significantly reduced, and the TNF-α content and collagen deposition in the corpus cavernosum markedly increased as compared to healthy rats. High-purity rat CCSMCs were obtained. Oxidative stress was evident and the cGMP content decreased in the EAP rat CCSMCs. The expression of Cav1.2, IP3R1 and RyR2 increased, but the SERCA2 expression decreased in EAP rat CCSMCs, which was accompanied by increased intracellular calcium. Increased expression of OPN, collagen and KCa3.1, decreased Calponin expression and increased proportion of cells in the S phase were also observed in the EAP rat CCSMCs. Conclusion CP causes oxidative stress and imbalance of intracellular calcium in CCSMCs and promotes CCSMCs transformation from contractile to synthetic state, which may be involved in the pathogenesis of ED.
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7- O-methylpunctatin, a Novel Homoisoflavonoid, Inhibits Phenotypic Switch of Human Arteriolar Smooth Muscle Cells. Biomolecules 2019; 9:biom9110716. [PMID: 31717401 PMCID: PMC6920859 DOI: 10.3390/biom9110716] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Revised: 10/09/2019] [Accepted: 10/09/2019] [Indexed: 12/12/2022] Open
Abstract
Remodeling of arterioles is a pivotal event in the manifestation of many inflammation-based cardio-vasculopathologies, such as hypertension. During these remodeling events, vascular smooth muscle cells (VSMCs) switch from a contractile to a synthetic phenotype. The latter is characterized by increased proliferation, migration, and invasion. Compounds with anti-inflammatory actions have been successful in attenuating this phenotypic switch. While the vast majority of studies investigating phenotypic modulation were undertaken in VSMCs isolated from large vessels, little is known about the effect of such compounds on phenotypic switch in VSMCs of microvessels (microVSMCs). We have recently characterized a novel homoisoflavonoid that we called 7-O-methylpunctatin (MP). In this study, we show that MP decreased FBS-induced cell proliferation, migration, invasion, and adhesion. MP also attenuated adhesion of THP-1 monocytes to microVSMCs, abolished FBS-induced expression of MMP-2, MMP-9, and NF-κB, as well as reduced activation of ERK1/2 and FAK. Furthermore, MP-treated VSMCs showed an increase in early (myocardin, SM-22α, SM-α) and mid-term (calponin and caldesmon) differentiation markers and a decrease in osteopontin, a protein highly expressed in synthetic VSMCs. MP also reduced transcription of cyclin D1, CDK4 but increased protein levels of p21 and p27. Taken together, these results corroborate an anti-inflammatory action of MP on human microVSMCs. Therefore, by inhibiting the synthetic phenotype of microVSMCs, MP may be a promising modulator for inflammation-induced arteriolar pathophysiology.
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20
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Zhang H, Liao M, Cao M, Qiu Z, Yan X, Zhou Y, Wu H, Wang Y, Zheng J, Ding J, Wang M, Liao Y, Chen X. ATRQβ-001 Vaccine Prevents Experimental Abdominal Aortic Aneurysms. J Am Heart Assoc 2019; 8:e012341. [PMID: 31512549 PMCID: PMC6817999 DOI: 10.1161/jaha.119.012341] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Background We have developed a peptide vaccine named ATRQβ‐001, which was proved to retard signal transduction initiated by angiotensin II (Ang II). Ang II was implicated in abdominal aortic aneurysm (AAA) progression, but whether the ATRQβ‐001 vaccine would prevent AAA is unknown. Methods and Results Ang II‐infused ApoE−/− mice and calcium phosphate‐induced AAA in C57BL/6 mice were used to verify the efficiency of ATRQβ‐001 vaccine in AAA. Results demonstrated that the vaccine effectively restrained the aneurysmal dilation and vascular wall destruction of aorta in both animal models, beyond anti‐hypertensive effects. In Ang II‐induced AAA vascular sections, Immunohistochemical staining showed that the vaccine notably constrained vascular inflammation and vascular smooth muscle cell (VSMC) phenotypic transition, concurrently reduced macrophages infiltration. In cultured VSMC, the anti‐ATR‐001 antibody inhibited osteopontin secretion induced by Ang II, thereby impeded macrophage migration while co‐culture. Furthermore, metalloproteinases and other matrix proteolytic enzymes were also found to be limited by the vaccine in vivo and in vitro. Conclusions ATRQβ‐001 vaccine prevented AAA initiation and progression in both Ang II and calcium phosphate‐induced AAA models. And the beneficial effects were played beyond decrease of blood pressure, which provided a novel and promising method to take precautions against AAA.
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Affiliation(s)
- Hongrong Zhang
- Department of Cardiology Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China.,Institute of Cardiology Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China.,Key Laboratory of Biological Targeted Therapy of the Ministry of Education Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China
| | - Mengyang Liao
- Department of Cardiology Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China.,Institute of Cardiology Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China.,Key Laboratory of Biological Targeted Therapy of the Ministry of Education Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China
| | - Mingsi Cao
- Department of Cardiology Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China.,Institute of Cardiology Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China.,Key Laboratory of Biological Targeted Therapy of the Ministry of Education Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China
| | - Zhihua Qiu
- Department of Cardiology Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China.,Institute of Cardiology Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China.,Key Laboratory of Biological Targeted Therapy of the Ministry of Education Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China
| | - Xiaole Yan
- Department of Cardiology Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China.,Institute of Cardiology Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China.,Key Laboratory of Biological Targeted Therapy of the Ministry of Education Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China
| | - Yanzhao Zhou
- Department of Cardiology Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China.,Institute of Cardiology Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China.,Key Laboratory of Biological Targeted Therapy of the Ministry of Education Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China
| | - Hailang Wu
- Department of Cardiology Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China.,Institute of Cardiology Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China.,Key Laboratory of Biological Targeted Therapy of the Ministry of Education Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China
| | - Yingxuan Wang
- Department of Cardiology Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China.,Institute of Cardiology Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China.,Key Laboratory of Biological Targeted Therapy of the Ministry of Education Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China
| | - Jiayu Zheng
- Department of Cardiology Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China.,Institute of Cardiology Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China.,Key Laboratory of Biological Targeted Therapy of the Ministry of Education Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China
| | - Jiaxing Ding
- Department of Cardiology Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China.,Institute of Cardiology Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China.,Key Laboratory of Biological Targeted Therapy of the Ministry of Education Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China
| | - Min Wang
- Department of Cardiology Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China.,Institute of Cardiology Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China.,Key Laboratory of Biological Targeted Therapy of the Ministry of Education Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China
| | - Yuhua Liao
- Department of Cardiology Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China.,Institute of Cardiology Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China.,Key Laboratory of Biological Targeted Therapy of the Ministry of Education Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China
| | - Xiao Chen
- Department of Cardiology Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China.,Institute of Cardiology Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China.,Key Laboratory of Biological Targeted Therapy of the Ministry of Education Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China
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Robson A, Lash GE, Innes BA, Zhang JY, Robson SC, Bulmer JN. Uterine spiral artery muscle dedifferentiation. Hum Reprod 2019; 34:1428-1438. [DOI: 10.1093/humrep/dez124] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2018] [Revised: 04/30/2019] [Accepted: 06/06/2019] [Indexed: 12/25/2022] Open
Abstract
AbstractSTUDY QUESTIONIs vascular smooth muscle cell (VSMC) dedifferentiation a feature of uterine spiral artery (SpA) remodelling in early human pregnancy?SUMMARY ANSWERRemodelling of human uterine SpAs is associated with dedifferentiation of VSMCs and can be induced in vitro by uterine natural killer (uNK) cells and extravillous trophoblast cells (EVTs).WHAT IS KNOWN ALREADYUterine SpAs undergo profound morphological changes in normal pregnancy with replacement of the musculoelastic arterial wall structure by fibrinoid containing EVTs. The fate of VSMCs in SpA remodelling is unknown; in guinea pig uterine artery VSMCs dedifferentiate, remain in the vessel wall and differentiate after parturition to restore the arterial wall. There is increasing evidence that uNK cells play a role in SpA remodelling. We hypothesized that SpA remodelling in human pregnancy is associated with VSMC dedifferentiation, initiated by uNK cell-derived growth factors.STUDY DESIGN, SIZE, DURATIONFormalin fixed, paraffin embedded placental bed biopsies were immunostained for angiogenic growth factor (AGF) receptors and markers of VSMC differentiation. An in vitro model of SpA remodelling using chorionic plate arteries (CPAs) was used to test the effect of different cell types and AGFs on VSMC differentiation.PARTICIPANTS/MATERIALS, SETTING, METHODSPlacental bed biopsies were immunostained for vascular endothelial growth factor receptors 1-3 (VEGF-R1, VEGF-R2, VEGF-R3), transforming growth factor beta 1 receptors I and II (TGF-βRI, TGF-βRII), interferon gamma receptors 1 and 2 (IFN-γR1, IFN-γR2), Tie2, α-smooth muscle actin (α-SMA), H-caldesmon (H-Cal), myosin heavy chain (MyHC), osteopontin and smoothelin. Staining intensity was assessed using a modified quickscore. Expression by VSMCs of the AGF receptors was confirmed by laser capture microdissection and real-time RT-PCR of non-remodelled SpAs, after laser removal of the endothelium. As an in vitro model, VSMC differentiation was assessed in CPAs by immunohistochemistry after culture in uNK cell-conditioned medium (CM), EVT-CM, uNK cell/EVT co-culture CM, Ang-1, Ang-2, IFN-γ, VEGF-A and VEGF-C, and after blocking of both Ang-1 and Ang-2 in uNK-CM.MAIN RESULTS AND THE ROLE OF CHANCESpA VSMC expression of Tie-2 (P = 0.0007), VEGF-R2 (P = 0.005) and osteopontin (P = 0.0001) increased in partially remodelled SpAs compared with non-remodelled SpAs, while expression of contractile VSMC markers was reduced (α-SMA P < 0.0001, H-Cal P = 0.03, MyHC P = 0.03, smoothelin P = 0.0001). In the in vitro CPA model, supernatants from purified uNK cell (H-Cal P < 0.0001, MyHC P = 0.03, α-SMA P = 0.02, osteopontin P = 0.03), EVT (H-Cal P = 0.0006, MyHC P = 0.02, osteopontin P = 0.01) and uNK cell/EVT co-cultures (H-Cal P = 0.001, MyHC P = 0.05, osteopontin P = 0.02) at 12–14 weeks, but not 8–10 weeks, gestational age induced reduced expression of contractile VSMC markers and increased osteopontin expression. Addition of exogenous (10 ng/ml) Ang-1 (P = 0.006) or Ang-2 (P = 0.009) also reduced H-Cal expression in the CPA model. Inhibition of Ang-1 (P = 0.0004) or Ang-2 (P = 0.004) in uNK cell supernatants blocked the ability of uNK cell supernatants to reduce H-Cal expression.LIMITATIONS, REASONS FOR CAUTIONThis is an in vitro study and the role of uNK cells, Ang-1 and Ang-2 in SpA remodelling in vivo has not yet been shown.WIDER IMPLICATIONS OF THE FINDINGSVSMC dedifferentiation is a feature of early SpA remodelling and uNK cells and EVT play key roles in this process by secretion of Ang-1 and Ang-2. This is one of the first studies to suggest a direct role for Ang-1 and Ang-2 in VSMC biology.STUDY FUNDING/COMPETING INTEREST(S)This work was supported by a grant from British Biotechnology and Biosciences Research Council (BB/E016790/1). The authors have no competing interests to declare.
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Affiliation(s)
- A Robson
- Reproductive and Vascular Biology Group, Institute of Cellular Medicine, Newcastle University, Newcastle upon Tyne, UK
- Sir William Dunn School of Pathology, University of Oxford, Oxford OX1 3RE, UK
| | - G E Lash
- Reproductive and Vascular Biology Group, Institute of Cellular Medicine, Newcastle University, Newcastle upon Tyne, UK
- Guangzhou Institute of Pediatrics, Guangzhou Women and Children’s Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, 510623, China
| | - B A Innes
- Reproductive and Vascular Biology Group, Institute of Cellular Medicine, Newcastle University, Newcastle upon Tyne, UK
| | - J Y Zhang
- Guangzhou Institute of Pediatrics, Guangzhou Women and Children’s Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, 510623, China
| | - S C Robson
- Reproductive and Vascular Biology Group, Institute of Cellular Medicine, Newcastle University, Newcastle upon Tyne, UK
| | - J N Bulmer
- Reproductive and Vascular Biology Group, Institute of Cellular Medicine, Newcastle University, Newcastle upon Tyne, UK
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Fan Y, Li N, Liu C, Dong H, Hu X. Excessive Methionine Supplementation Exacerbates the Development of Abdominal Aortic Aneurysm in Rats. J Vasc Res 2019; 56:230-240. [PMID: 31307051 DOI: 10.1159/000501313] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Accepted: 06/04/2019] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE The relationship between methionine (Met) and abdominal aortic aneurysm (AAA) has been previously demonstrated, but the mechanisms controlling this association remain unclear. This study investigated the potential contribution of hypermethioninemia (HMet) to the development of AAA. METHODS A model of AAA was induced by intraluminal porcine pancreatic elastase (PPE) infusion in 60 male Sprague-Dawley rats divided into 4 groups (n = 15 per group). Met was supplied by intragastric administration (1 g/kg body weight/day) from 1 week before surgery until 4 weeks after surgery. The aortic diameter was measured by ultrasound. Aortas were collected 4 weeks after surgery and subjected to biochemical analysis, histological assays, and transmission electron microscopy. RESULTS After 5 weeks of Met supplementation, HMet increased the dilation ratio of the HMet + PPE group, and hyperhomocysteinemia was also induced in HMet and HMet + PPE rats. Increased matrix metalloproteinase-2 (MMP-2), osteopontin, and interleukin-6 expression was detected in HMet + PPE rats. Furthermore, increased autophagy was detected in the HMet + PPE group. CONCLUSION This study demonstrates that HMet may exacerbate the formation of AAA due to the increased dilation ratio partially via enhancing MMP-2 and inflammatory responses.
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Affiliation(s)
- Yichuan Fan
- Department of Vascular and Thyroid Surgery, The First Affiliated Hospital, China Medical University, Shenyang, China
| | - Nan Li
- Department of Vascular and Thyroid Surgery, The First Affiliated Hospital, China Medical University, Shenyang, China
| | - Chengwei Liu
- Division of Vascular Surgery, The First Affiliated Hospital of Jiamusi University, Jiamusi, China
| | - Haipeng Dong
- Department of Cardiothoracic Vascular Surgery, Affiliated Hospital of Beihua University, Jilin City, China
| | - Xinhua Hu
- Department of Vascular and Thyroid Surgery, The First Affiliated Hospital, China Medical University, Shenyang, China,
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Ramaswamy AK, Vorp DA, Weinbaum JS. Functional Vascular Tissue Engineering Inspired by Matricellular Proteins. Front Cardiovasc Med 2019; 6:74. [PMID: 31214600 PMCID: PMC6554335 DOI: 10.3389/fcvm.2019.00074] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Accepted: 05/15/2019] [Indexed: 12/17/2022] Open
Abstract
Modern regenerative medicine, and tissue engineering specifically, has benefited from a greater appreciation of the native extracellular matrix (ECM). Fibronectin, collagen, and elastin have entered the tissue engineer's toolkit; however, as fully decellularized biomaterials have come to the forefront in vascular engineering it has become apparent that the ECM is comprised of more than just fibronectin, collagen, and elastin, and that cell-instructive molecules known as matricellular proteins are critical for desired outcomes. In brief, matricellular proteins are ECM constituents that contrast with the canonical structural proteins of the ECM in that their primary role is to interact with the cell. Of late, matricellular genes have been linked to diseases including connective tissue disorders, cardiovascular disease, and cancer. Despite the range of biological activities, this class of biomolecules has not been actively used in the field of regenerative medicine. The intent of this review is to bring matricellular proteins into wider use in the context of vascular tissue engineering. Matricellular proteins orchestrate the formation of new collagen and elastin fibers that have proper mechanical properties-these will be essential components for a fully biological small diameter tissue engineered vascular graft (TEVG). Matricellular proteins also regulate the initiation of thrombosis via fibrin deposition and platelet activation, and the clearance of thrombus when it is no longer needed-proper regulation of thrombosis will be critical for maintaining patency of a TEVG after implantation. Matricellular proteins regulate the adhesion, migration, and proliferation of endothelial cells-all are biological functions that will be critical for formation of a thrombus-resistant endothelium within a TEVG. Lastly, matricellular proteins regulate the adhesion, migration, proliferation, and activation of smooth muscle cells-proper control of these biological activities will be critical for a TEVG that recellularizes and resists neointimal formation/stenosis. We review all of these functions for matricellular proteins here, in addition to reviewing the few studies that have been performed at the intersection of matricellular protein biology and vascular tissue engineering.
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Affiliation(s)
- Aneesh K Ramaswamy
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, United States.,McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, United States
| | - David A Vorp
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, United States.,McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, United States.,Department of Surgery, University of Pittsburgh, Pittsburgh, PA, United States.,Department of Cardiothoracic Surgery, University of Pittsburgh, Pittsburgh, PA, United States.,Department of Chemical and Petroleum Engineering, University of Pittsburgh, Pittsburgh, PA, United States
| | - Justin S Weinbaum
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, United States.,McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, United States.,Department of Pathology, University of Pittsburgh, Pittsburgh, PA, United States
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24
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Kosmopoulos M, Paschou SA, Grapsa J, Anagnostis P, Vryonidou A, Goulis DG, Siasos G. The Emerging Role of Bone Markers in Diagnosis and Risk Stratification of Patients With Coronary Artery Disease. Angiology 2019; 70:690-700. [PMID: 30696256 DOI: 10.1177/0003319718822625] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Molecules that govern bone metabolism, such as osteoprotegerin (OPG) and osteopontin (OPN), have been isolated from other tissues, including blood vessels. Atherosclerosis and coronary artery disease (CAD) are leading causes of mortality worldwide. Despite novel biochemical and imaging techniques, early detection of CAD is still unsatisfactory. Experimental data indicate that bone turnover markers (BTMs) contribute to the development of atherosclerosis. This finding has sparked interest in their clinical use. This narrative review analyzed information from >50 human studies, which strongly suggest that OPG, OPN, and alkaline phosphatase (ALP) serum concentrations are altered in patients with CAD. Osteoprotegerin seems to be more useful for the detection of early disease, while OPN and ALP are recruited in vessels after the establishment of disease. Osteocalcin may be used as a flow cytometry marker for endothelial progenitor cells and can constitute a marker to monitor response to interventional treatments and risk of restenosis. However, most data derive from observational studies. Incorporation of BTMs in multifactorial computational algorithms could further determine their role in CAD diagnosis and prognosis together with other imaging techniques and biochemical markers.
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Affiliation(s)
- Marinos Kosmopoulos
- 1 Division of Cardiology, Department of Medicine, University of Minnesota School of Medicine, Minneapolis, MN, USA
| | - Stavroula A Paschou
- 2 Division of Endocrinology and Diabetes, "Aghia Sophia" Hospital, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Julia Grapsa
- 3 Barts Heart Center, St Bartholomew's Hospital, London, UK
| | - Panagiotis Anagnostis
- 4 Unit of Reproductive Endocrinology, First Department of Obstetrics and Gynecology, Medical School, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Andromachi Vryonidou
- 5 Department of Endocrinology and Diabetes, Hellenic Red Cross Hospital, Athens, Greece
| | - Dimitrios G Goulis
- 4 Unit of Reproductive Endocrinology, First Department of Obstetrics and Gynecology, Medical School, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Gerasimos Siasos
- 6 First Department of Cardiology, Hippokration Hospital, Medical School, National and Kapodistrian University of Athens, Athens, Greece
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Biswas Shivhare S, Bulmer JN, Innes BA, Hapangama DK, Lash GE. Endometrial vascular development in heavy menstrual bleeding: altered spatio-temporal expression of endothelial cell markers and extracellular matrix components. Hum Reprod 2019; 33:399-410. [PMID: 29309596 DOI: 10.1093/humrep/dex378] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Accepted: 12/20/2017] [Indexed: 01/12/2023] Open
Abstract
STUDY QUESTION Are there any phenotypic and structural/architectural changes in the vessels of endometrium and superficial myometrium during the normal menstrual cycle in healthy women and those with heavy menstrual bleeding (HMB)? SUMMARY ANSWER Spatial and temporal differences in protein levels of endothelial cell (EC) markers and components of the extracellular matrix (ECM) were detected across the menstrual cycle in healthy women and these are altered in HMB. WHAT IS KNOWN ALREADY HMB affects 30% of women of reproductive age with ~50% of cases being idiopathic. We have previously shown that the differentiation status of endometrial vascular smooth muscle cells (VSMCs) is altered in women with HMB, suggesting altered vessel maturation compared to controls. Endometrial arteriogenesis requires the co-ordinated maturation not only of the VSMCs but also the underlying ECs and surrounding ECM. We hypothesized that there are spatial and temporal patterns of protein expression of EC markers and vascular ECM components in the endometrium across the menstrual cycle, which are altered in women with HMB. STUDY DESIGN, SIZE, DURATION Biopsies containing endometrium and superficial myometrium were taken from hysterectomy specimens from both healthy control women without endometrial pathology and women with subjective HMB in the proliferative (PP), early secretory (ESP), mid secretory (MSP) and late secretory (LSP) phases (N = 5 for each cycle phase and subject group). Samples were fixed in formalin and embedded in paraffin wax. PARTICIPANTS/MATERIALS, SETTING, METHODS Serial sections (3μm thick) were immunostained for EC markers (factor VIII related antigen (F8RA), CD34, CD31 and ulex europaeus-agglutinin I (UEA-1) lectin), structural ECM markers (osteopontin, laminin, fibronectin and collagen IV) and for Ki67 to assess proliferation. Immunoreactivity of vessels in superficial myometrium, endometrial stratum basalis, stratum functionalis and luminal region was scored using either a modified Quickscore or by counting the number of positive vessels. MAIN RESULTS AND THE ROLE OF CHANCE In control samples, all four EC markers showed a dynamic expression pattern according to the menstrual cycle phase, in both endometrial and myometrial vessels. EC protein marker expression was altered in women with HMB compared with controls, especially in the secretory phase in the endometrial luminal region and stratum functionalis. For example, in the LSP expression of UEA-1 and CD31 in the luminal region decreased in HMB (mean quickscore: 1 and 5, respectively) compared with controls (3.2 and 7.4, respectively) (both P = 0.008), while expression of F8RA and CD34 increased in HMB (1.4 and 8, respectively) compared with controls (0 and 5.8, respectively) (both P = 0.008). There was also a distinct pattern of expression of the vascular structural ECM protein components osteopontin, laminin, fibronectin and collagen IV in the superficial myometrium, stratum functionalis and stratum basalis during the menstrual cycle, which was altered in HMB. In particular, compared with controls, osteopontin expression in HMB was higher in stratum functionalis in the LSP (7.2 and 11.2, respectively P = 0.008), while collagen IV expression was reduced in stratum basalis in the MSP (4.6 and 2.8, respectively P = 0.002) and in stratum functionalis in the ESP (7 and 3.2, respectively P = 0.008). LIMITATIONS, REASONS FOR CAUTION The protein expression of vascular EC markers and ECM components was assessed using a semi-quantitative approach in both straight and spiral arterioles. In our hospital, HMB is determined by subjective criteria and levels of blood loss were not assessed. WIDER IMPLICATIONS OF THE FINDINGS Variation in the protein expression pattern between the four EC markers highlights the importance of choice of EC marker for investigation of endometrial vessels. Differences in expression of the different EC markers may reflect developmental stage dependent expression of EC markers in endometrial vessels, and their altered expression in HMB may reflect dysregulated vascular development. This hypothesis is supported by altered expression of ECM proteins within endometrial vessel walls, as well as our previous data showing a dysregulation in VSMC contractile protein expression in the endometrium of women with HMB. Taken together, these data support the suggestion that HMB symptoms are associated with weaker vascular structures, particularly in the LSP of the menstrual cycle, which may lead to increased and extended blood flow during menstruation. STUDY FUNDING/COMPETING INTEREST(S) This study was funded by Wellbeing of Women (RG1342) and Newcastle University. There are no competing interests to declare. TRIAL REGISTRATION NUMBER Not applicable.
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Affiliation(s)
- Sourima Biswas Shivhare
- Reproductive and Vascular Biology Group, Institute of Cellular Medicine, Newcastle University, Newcastle upon Tyne NE2 4HH, UK
| | - Judith N Bulmer
- Reproductive and Vascular Biology Group, Institute of Cellular Medicine, Newcastle University, Newcastle upon Tyne NE2 4HH, UK
| | - Barbara A Innes
- Reproductive and Vascular Biology Group, Institute of Cellular Medicine, Newcastle University, Newcastle upon Tyne NE2 4HH, UK
| | - Dharani K Hapangama
- Department of Women's and Children's Health, Institute of Translational Medicine, University of Liverpool, Liverpool Women's Hospital, Crown Street, Liverpool L8 7SS, UK
| | - Gendie E Lash
- Reproductive and Vascular Biology Group, Institute of Cellular Medicine, Newcastle University, Newcastle upon Tyne NE2 4HH, UK.,Division of Uterine Vascular Biology, Guangzhou Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou 510623, China
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26
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MT4-MMP: The GPI-Anchored Membrane-Type Matrix Metalloprotease with Multiple Functions in Diseases. Int J Mol Sci 2019; 20:ijms20020354. [PMID: 30654475 PMCID: PMC6359745 DOI: 10.3390/ijms20020354] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2018] [Revised: 01/10/2019] [Accepted: 01/12/2019] [Indexed: 01/02/2023] Open
Abstract
MT4-MMP (or MMP17) belongs to the Membrane-Type Matrix Metalloproteinase (MT-MMP) family. This family of proteases contributes to extracellular matrix remodeling during several physiological processes, including embryogenesis, organogenesis, tissue regeneration, angiogenesis, wound healing, and inflammation. MT4-MMP (MMP17) presents unique characteristics compared to other members of the family in terms of sequence homology, substrate specificity, and internalization mode, suggesting distinct physiological and pathological functions. While the physiological functions of MT4-MMP are poorly understood, it has been involved in different pathological processes such as arthritis, cardiovascular disease, and cancer progression. The mt4-mmp transcript has been detected in a large diversity of cancers. The contribution of MT4-MMP to tumor development has been further investigated in gastric cancer, colon cancer, head and neck cancer, and more deeply in breast cancer. Given its contribution to different pathologies, particularly cancers, MT4-MMP represents an interesting therapeutic target. In this review, we examine its biological and structural properties, and we propose an overview of its physiological and pathological functions.
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27
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Ngai D, Lino M, Bendeck MP. Cell-Matrix Interactions and Matricrine Signaling in the Pathogenesis of Vascular Calcification. Front Cardiovasc Med 2018; 5:174. [PMID: 30581820 PMCID: PMC6292870 DOI: 10.3389/fcvm.2018.00174] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Accepted: 11/21/2018] [Indexed: 12/15/2022] Open
Abstract
Vascular calcification is a complex pathological process occurring in patients with atherosclerosis, type 2 diabetes, and chronic kidney disease. The extracellular matrix, via matricrine-receptor signaling plays important roles in the pathogenesis of calcification. Calcification is mediated by osteochondrocytic-like cells that arise from transdifferentiating vascular smooth muscle cells. Recent advances in our understanding of the plasticity of vascular smooth muscle cell and other cells of mesenchymal origin have furthered our understanding of how these cells transdifferentiate into osteochondrocytic-like cells in response to environmental cues. In the present review, we examine the role of the extracellular matrix in the regulation of cell behavior and differentiation in the context of vascular calcification. In pathological calcification, the extracellular matrix not only provides a scaffold for mineral deposition, but also acts as an active signaling entity. In recent years, extracellular matrix components have been shown to influence cellular signaling through matrix receptors such as the discoidin domain receptor family, integrins, and elastin receptors, all of which can modulate osteochondrocytic differentiation and calcification. Changes in extracellular matrix stiffness and composition are detected by these receptors which in turn modulate downstream signaling pathways and cytoskeletal dynamics, which are critical to osteogenic differentiation. This review will focus on recent literature that highlights the role of cell-matrix interactions and how they influence cellular behavior, and osteochondrocytic transdifferentiation in the pathogenesis of cardiovascular calcification.
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Affiliation(s)
- David Ngai
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada.,Ted Rogers Centre for Heart Research, University of Toronto, Toronto, ON, Canada
| | - Marsel Lino
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada.,Ted Rogers Centre for Heart Research, University of Toronto, Toronto, ON, Canada
| | - Michelle P Bendeck
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada.,Ted Rogers Centre for Heart Research, University of Toronto, Toronto, ON, Canada.,Department of Medicine, University of Toronto, Toronto, ON, Canada
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28
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Lee J, Lee SH, Kim BS, Cho YS, Park Y. Development and Evaluation of Hyaluronic Acid-Based Hybrid Bio-Ink for Tissue Regeneration. Tissue Eng Regen Med 2018; 15:761-769. [PMID: 30603594 DOI: 10.1007/s13770-018-0144-8] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2018] [Revised: 06/17/2018] [Accepted: 07/10/2018] [Indexed: 01/21/2023] Open
Abstract
Background Bioprinting has recently appeared as a powerful tool for building complex tissue and organ structures. However, the application of bioprinting to regenerative medicine has limitations, due to the restricted choices of bio-ink for cytocompatible cell encapsulation and the integrity of the fabricated structures. Methods In this study, we developed hybrid bio-inks based on acrylated hyaluronic acid (HA) for immobilizing bio-active peptides and tyramine-conjugated hyaluronic acids for fast gelation. Results Conventional acrylated HA-based hydrogels have a gelation time of more than 30 min, whereas hybrid bio-ink has been rapidly gelated within 200 s. Fibroblast cells cultured in this hybrid bio-ink up to 7 days showed > 90% viability. As a guidance cue for stem cell differentiation, we immobilized four different bio-active peptides: BMP-7-derived peptides (BMP-7D) and osteopontin for osteogenesis, and substance-P (SP) and Ac-SDKP (SDKP) for angiogenesis. Mesenchymal stem cells cultured in these hybrid bio-inks showed the highest angiogenic and osteogenic activity cultured in bio-ink immobilized with a SP or BMP-7D peptide. This bio-ink was loaded in a three-dimensional (3D) bioprinting device showing reproducible printing features. Conclusion We have developed bio-inks that combine biochemical and mechanical cues. Biochemical cues were able to regulate differentiation of cells, and mechanical cues enabled printing structuring. This multi-functional bio-ink can be used for complex tissue engineering and regenerative medicine.
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Affiliation(s)
- Jaeyeon Lee
- 1Department of Biomedical Engineering, College of Medicine, Korea University, 73 Inchon-ro, Seongbuk-gu, Seoul, 02841 Republic of Korea
| | - Se-Hwan Lee
- 2Department of Mechanical Design Engineering, College of Engineering, Wonkwang University, 460 Iksandae-ro, Iksan, Jeonbuk 54538 Republic of Korea
| | - Byung Soo Kim
- 3Department of Internal Medicine, Korea University Medical Center, 73 Inchon-ro, Seongbuk-gu, Seoul, 02841 Republic of Korea
| | - Young-Sam Cho
- 2Department of Mechanical Design Engineering, College of Engineering, Wonkwang University, 460 Iksandae-ro, Iksan, Jeonbuk 54538 Republic of Korea
| | - Yongdoo Park
- 1Department of Biomedical Engineering, College of Medicine, Korea University, 73 Inchon-ro, Seongbuk-gu, Seoul, 02841 Republic of Korea
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29
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Zhang L, Xu Z, Wu Y, Liao J, Zeng F, Shi L. Akt/eNOS and MAPK signaling pathways mediated the phenotypic switching of thoracic aorta vascular smooth muscle cells in aging/hypertensive rats. Physiol Res 2018; 67:543-553. [PMID: 29750880 DOI: 10.33549/physiolres.933779] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Considerable evidence demonstrates that phenotypic switching of vascular smooth muscle cells (VSMCs) is influenced by aging and hypertension. During phenotypic switching, VSMCs undergo a switch to a proliferative and migratory phenotype, with this switch being a common pathology in cardiovascular diseases. The aim of this study was to explore the joint influence of age and hypertension on thoracic aortic smooth muscle phenotypic switching and the balance of Akt and mitogen-activated protein kinase (MAPK) signaling during this switch. Different ages of spontaneously hypertensive rats (SHR) and Wistar-Kyoto rats (WKY) were used to establish hypertension and aging models. The phenotypic state was determined by detecting the marker proteins alpha-SM-actin, calponin, and osteopontin (OPN) via immunohistochemical staining and Western blot. Signaling proteins associated with the Akt and MAPK pathways were detected in rat thoracic aorta using Western blot. Both aging and hypertension caused a decrease in contractile (differentiated) phenotype markers (alpha-SM-actin and calponin), while the synthetic (proliferative or de-differentiated) phenotype maker was elevated (OPN). When combining hypertension and aging, this effect was enhanced, with Akt signaling decreased, while MAPK signaling was increased. These results suggested that VSMCs phenotype switching is modulated by a balance between Akt and MAPK signaling in the process of aging and hypertension.
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Affiliation(s)
- Lin Zhang
- Department of Exercise Physiology, Beijing Sport University, Beijing, P. R. China.
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Wang D, Uhrin P, Mocan A, Waltenberger B, Breuss JM, Tewari D, Mihaly-Bison J, Huminiecki Ł, Starzyński RR, Tzvetkov NT, Horbańczuk J, Atanasov AG. Vascular smooth muscle cell proliferation as a therapeutic target. Part 1: molecular targets and pathways. Biotechnol Adv 2018; 36:1586-1607. [PMID: 29684502 DOI: 10.1016/j.biotechadv.2018.04.006] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2017] [Revised: 04/15/2018] [Accepted: 04/18/2018] [Indexed: 12/16/2022]
Abstract
Cardiovascular diseases are a major cause of human death worldwide. Excessive proliferation of vascular smooth muscle cells contributes to the etiology of such diseases, including atherosclerosis, restenosis, and pulmonary hypertension. The control of vascular cell proliferation is complex and encompasses interactions of many regulatory molecules and signaling pathways. Herein, we recapitulated the importance of signaling cascades relevant for the regulation of vascular cell proliferation. Detailed understanding of the mechanism underlying this process is essential for the identification of new lead compounds (e.g., natural products) for vascular therapies.
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Affiliation(s)
- Dongdong Wang
- Department of Molecular Biology, Institute of Genetics and Animal Breeding of the Polish Academy of Sciences, ul. Postepu 36A, Jastrzębiec, 05-552 Magdalenka, Poland; Department of Pharmacognosy, University of Vienna, Althanstrasse 14, A-1090 Vienna, Austria; Institute of Clinical Chemistry, University Hospital Zurich, Wagistrasse 14, 8952 Schlieren, Switzerland
| | - Pavel Uhrin
- Center for Physiology and Pharmacology, Institute of Vascular Biology and Thrombosis Research, Medical University of Vienna, Schwarzspanierstrasse 17, 1090 Vienna, Austria.
| | - Andrei Mocan
- Department of Pharmaceutical Botany, "Iuliu Hațieganu" University of Medicine and Pharmacy, Strada Gheorghe Marinescu 23, 400337 Cluj-Napoca, Romania; Institute for Life Sciences, University of Agricultural Sciences and Veterinary Medicine of Cluj-Napoca, Calea Mănăştur 3-5, 400372 Cluj-Napoca, Romania
| | - Birgit Waltenberger
- Institute of Pharmacy/Pharmacognosy and Center for Molecular Biosciences Innsbruck (CMBI), University of Innsbruck, Innrain 80-82, 6020 Innsbruck, Austria
| | - Johannes M Breuss
- Center for Physiology and Pharmacology, Institute of Vascular Biology and Thrombosis Research, Medical University of Vienna, Schwarzspanierstrasse 17, 1090 Vienna, Austria
| | - Devesh Tewari
- Department of Pharmaceutical Sciences, Faculty of Technology, Kumaun University, Bhimtal, 263136 Nainital, Uttarakhand, India
| | - Judit Mihaly-Bison
- Center for Physiology and Pharmacology, Institute of Vascular Biology and Thrombosis Research, Medical University of Vienna, Schwarzspanierstrasse 17, 1090 Vienna, Austria
| | - Łukasz Huminiecki
- Department of Molecular Biology, Institute of Genetics and Animal Breeding of the Polish Academy of Sciences, ul. Postepu 36A, Jastrzębiec, 05-552 Magdalenka, Poland
| | - Rafał R Starzyński
- Department of Molecular Biology, Institute of Genetics and Animal Breeding of the Polish Academy of Sciences, ul. Postepu 36A, Jastrzębiec, 05-552 Magdalenka, Poland
| | - Nikolay T Tzvetkov
- Pharmaceutical Institute, University of Bonn, An der Immenburg 4, 53121 Bonn, Germany; NTZ Lab Ltd., Krasno Selo 198, 1618 Sofia, Bulgaria
| | - Jarosław Horbańczuk
- Department of Molecular Biology, Institute of Genetics and Animal Breeding of the Polish Academy of Sciences, ul. Postepu 36A, Jastrzębiec, 05-552 Magdalenka, Poland
| | - Atanas G Atanasov
- Department of Molecular Biology, Institute of Genetics and Animal Breeding of the Polish Academy of Sciences, ul. Postepu 36A, Jastrzębiec, 05-552 Magdalenka, Poland; Department of Pharmacognosy, University of Vienna, Althanstrasse 14, A-1090 Vienna, Austria.
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Wang SK, Green LA, Gutwein AR, Gupta AK, Babbey CM, Motaganahalli RL, Fajardo A, Murphy MP. Osteopontin may be a driver of abdominal aortic aneurysm formation. J Vasc Surg 2018; 68:22S-29S. [PMID: 29402664 DOI: 10.1016/j.jvs.2017.10.068] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Accepted: 10/04/2017] [Indexed: 10/18/2022]
Abstract
OBJECTIVE Previous in vitro and animal studies have suggested that osteopontin (OPN), an inflammatory extracellular matrix protein, is involved in the formation and growth of abdominal aortic aneurysms (AAAs). However, the mechanism by which this occurs continues to be nebulous. The relationship between OPN and inflammation-suppressing lymphocytes present in the human AAA condition was investigated and presented herein. METHODS Serum OPN concentrations were measured in healthy, risk factor-matched non-AAA and AAA patients by enzyme-linked immunosorbent assay (ELISA). Immunohistochemistry was used to determine the source of OPN secretion using aortic tissue collected from multiorgan donors and AAA patients undergoing open surgical repair. Vascular smooth muscle cells (VSMCs) were exposed to various inflammatory mediators, and OPN expression was evaluated by quantitative reverse transcriptase-polymerase chain reaction and ELISA. The inflammatory nature of OPN and the aortic wall was determined using a TR1 suppressor cell induction assay as a surrogate and characterized by ELISA and fluorescence-activated cell sorting. RESULTS OPN was found to be elevated in both the plasma and aortic homogenate of AAA patients compared with controls. On immunohistochemistry, OPN localized to the tunica media of the diseased aorta but was minimally expressed in healthy aorta. In vitro, cigarette smoke extract was the most potent stimulator of OPN secretion by VSMCs and increased both messenger RNA and supernatant concentrations. OPN demonstrated an ability to inhibit the induction of interleukin 10-secreting TR1 lymphocytes, a depleted population in the AAA patient, from naive precursors. Last, neutralizing receptor targets of OPN in the setting of AAA homogenate coincubation abrogated the inhibition of TR1 induction. CONCLUSIONS OPN, secreted by the VSMCs of the tunica media, is elevated in the circulating plasma and aortic wall of patients with AAA. It can inhibit the induction of the TR1 suppressor cell, leading to an overall proinflammatory state contributing to progressive aortic wall breakdown and dilation.
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Affiliation(s)
- S Keisin Wang
- Division of Vascular Surgery, Department of Surgery, Indiana University School of Medicine, Richard Roudebush VA Medical Center, Indianapolis, Ind
| | - Linden A Green
- Division of Vascular Surgery, Department of Surgery, Indiana University School of Medicine, Richard Roudebush VA Medical Center, Indianapolis, Ind
| | - Ashley R Gutwein
- Division of Vascular Surgery, Department of Surgery, Indiana University School of Medicine, Richard Roudebush VA Medical Center, Indianapolis, Ind
| | - Alok K Gupta
- Division of Vascular Surgery, Department of Surgery, Indiana University School of Medicine, Richard Roudebush VA Medical Center, Indianapolis, Ind
| | - Clifford M Babbey
- Division of Vascular Surgery, Department of Surgery, Indiana University School of Medicine, Richard Roudebush VA Medical Center, Indianapolis, Ind
| | - Raghu L Motaganahalli
- Division of Vascular Surgery, Department of Surgery, Indiana University School of Medicine, Richard Roudebush VA Medical Center, Indianapolis, Ind
| | - Andres Fajardo
- Division of Vascular Surgery, Department of Surgery, Indiana University School of Medicine, Richard Roudebush VA Medical Center, Indianapolis, Ind
| | - Michael P Murphy
- Division of Vascular Surgery, Department of Surgery, Indiana University School of Medicine, Richard Roudebush VA Medical Center, Indianapolis, Ind.
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An Z, Liu Y, Song ZG, Tang H, Yuan Y, Xu ZY. Mechanisms of aortic dissection smooth muscle cell phenotype switch. J Thorac Cardiovasc Surg 2017. [PMID: 28625769 DOI: 10.1016/j.jtcvs.2017.05.066] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
OBJECTIVE To investigate the expression of Nanog homeobox (NANOG) in thoracic aortic dissection (TAD) and the role of NANOG in regulating human aortic vascular smooth muscle cells (VSMCs) phenotype switch. METHODS Aortic specimens were collected from 20 patients undergoing TAD and 10 controls. VSMCs were isolated by adherent cultivation approach. The expression of NANOG, osteopontin (OPN), and VSMCs phenotype markers were determined by quantitative real-time polymerase chain reaction, Western blot, immunohistochemistry, and immunofluorescence. Cell counting, scratch wound-healing assay, Transwell migration, and apoptosis assays were used for cell function assessment. Deoxyribonucleic acid-protein binding detection was performed by chromatin immunoprecipitation. RESULTS Our experiment results showed that NANOG and OPN were highly expressed in TAD aortic wall and VSMCs, both accompanying VSMCs phenotype switch. Overexpression of NANOG induced the up-regulation of VSMCs synthetic marker matrix metalloproteinase 2 and the down-regulation of VSMCs contractile markers α-smooth muscle actin and smooth muscle 22α. Overexpression of NANOG also enhanced the proliferation, migration, and antiapoptosis capabilities of VSMCs. The results also showed that these functions of NANOG was via OPN and NANOG directly up-regulated OPN by binding to its promoter region. CONCLUSIONS Our study suggests that NANOG is highly expressed in TAD aortic wall and VSMCs. Increased NANOG promotes VSMCs phenotype switch by directly up-regulating OPN through binding to its promoter region.
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Affiliation(s)
- Zhao An
- Department of Cardiovascular Surgery, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Yang Liu
- Department of Cardiovascular Surgery, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Zhi-Gang Song
- Department of Cardiovascular Surgery, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Hao Tang
- Department of Cardiovascular Surgery, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Yang Yuan
- Department of Cardiovascular Surgery, Changhai Hospital, Second Military Medical University, Shanghai, China.
| | - Zhi-Yun Xu
- Department of Cardiovascular Surgery, Changhai Hospital, Second Military Medical University, Shanghai, China.
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Cao C, Luo X, Ji X, Wang Y, Zhang Y, Zhang P, Zhong L. Osteopontin regulates the proliferation of rat aortic smooth muscle cells in response to gingipains treatment. Mol Cell Probes 2017; 33:51-56. [PMID: 28302392 DOI: 10.1016/j.mcp.2017.03.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2016] [Revised: 03/11/2017] [Accepted: 03/11/2017] [Indexed: 12/25/2022]
Abstract
OBJECTIVE The present study aimed to explore the possible effects of osteopontin (OPN) in the proliferation of rat aortic smooth muscle cells (RASMCs) stimulated by gingipains. METHODS The proliferation of RASMCs in response to active gingipains treatment was evaluated by CCK-8 assay. OPN siRNA was designed, constructed and transfected into RASMCs at different concentrations. The cell cycle of RASMCs was analyzed by flow cytometry. OPN, α-SMA and calponin expression were examined by real-time PCR and western blot analysis. RESULTS Gingipains promoted the proliferation of RASMCs and OPN expression. With siRNA-mediated OPN expression knockdown, the cell cycle of RASMCs was blocked in the G0/G1 phase. Furthermore, the expression of specific differentiation markers, α-SMA and calponin, also decreased. CONCLUSIONS These results demonstrate that OPN has an impact on the proliferation and differentiation of RASMCs stimulated by gingipains.
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Affiliation(s)
- Chong Cao
- Department of Periodontology, Caochong Dental Clinic, Urumqi 830054, China
| | - Xin Luo
- Department of Pharmacology, The Basic Medical Sciences College of Xinjiang Medical University, Urumqi 830054, China
| | - Xiaowei Ji
- Department of Periodontology, The First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, China
| | - Yao Wang
- Department of Stomatology, The Affiliated Hospital of Hangzhou Normal University, Hangzhou 310015, China
| | - Yuan Zhang
- Medical College of Hangzhou Normal University, Hangzhou 311121, China; Department of Stomatology, The Affiliated Hospital of Hangzhou Normal University, Hangzhou 310015, China
| | - Pengtao Zhang
- Medical College of Hangzhou Normal University, Hangzhou 311121, China; Department of Stomatology, The Affiliated Hospital of Hangzhou Normal University, Hangzhou 310015, China
| | - Liangjun Zhong
- Medical College of Hangzhou Normal University, Hangzhou 311121, China; Department of Stomatology, The Affiliated Hospital of Hangzhou Normal University, Hangzhou 310015, China.
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Jang MA, Lee SJ, Baek SE, Park SY, Choi YW, Kim CD. α-Iso-Cubebene Inhibits PDGF-Induced Vascular Smooth Muscle Cell Proliferation by Suppressing Osteopontin Expression. PLoS One 2017; 12:e0170699. [PMID: 28114367 PMCID: PMC5256966 DOI: 10.1371/journal.pone.0170699] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2016] [Accepted: 01/09/2017] [Indexed: 12/31/2022] Open
Abstract
α-Iso-cubebene (ICB) is a dibenzocyclooctadiene lignin contained in Schisandra chinensis (SC), a well-known medicinal herb that ameliorates cardiovascular symptoms. Thus, we examined the effect of ICB on vascular smooth muscle cell (VSMC) proliferation, a key feature of diverse vascular diseases. When VSMCs primary cultured from rat thoracic aorta were stimulated with PDGF (1-10 ng/ml), cell proliferation and osteopontin (OPN) expression were concomitantly up-regulated, but these effects were attenuated when cells were treated with MPIIIB10, a neutralizing monoclonal antibody for OPN. In aortic tissues exposed to PDGF, sprouting VSMC numbers increased, which was attenuated in tissues from OPN-deficient mice. Furthermore, VSMC proliferation and OPN expression induced by PDGF were attenuated dose-dependently by ICB (10 or 30 μg/ml). Reporter assays conducted using OPN promoter-luciferase constructs showed that the promoter region 538-234 bp of the transcription start site was responsible for transcriptional activity enhancement by PDGF, which was significantly inhibited by ICB. Putative binding sites for AP-1 and C/EBPβ in the indicated promoter region were suggested by TF Search, and increased binding of AP-1 and C/EBPβ in PDGF-treated VSMCs was demonstrated using a ChIP assay. The increased bindings of AP-1 and C/EBPβ into OPN promoter were attenuated by ICB. Moreover, the PDGF-induced expression of OPN was markedly attenuated in VSMCs transfected with siRNA for AP-1 and C/EBPβ. These results indicate that ICB inhibit VSMC proliferation by inhibiting the AP-1 and C/EBPβ signaling pathways and thus downregulating OPN expression.
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Affiliation(s)
- Min A. Jang
- Department of Pharmacology, School of Medicine, Pusan National University, Gyeongnam, Republic of Korea
- Gene & Cell Therapy Research Center for Vessel-associated Diseases, Pusan National University, Gyeongnam, Republic of Korea
| | - Seung Jin Lee
- College of Pharmacy, Pusan National University, Busan, Republic of Korea
| | - Seung Eun Baek
- Department of Pharmacology, School of Medicine, Pusan National University, Gyeongnam, Republic of Korea
- Gene & Cell Therapy Research Center for Vessel-associated Diseases, Pusan National University, Gyeongnam, Republic of Korea
| | - So Youn Park
- Department of Pharmacology, School of Medicine, Pusan National University, Gyeongnam, Republic of Korea
- Gene & Cell Therapy Research Center for Vessel-associated Diseases, Pusan National University, Gyeongnam, Republic of Korea
| | - Young Whan Choi
- College of Natural Resources & Life Sciences, Pusan National University, Gyeongnam, Republic of Korea
| | - Chi Dae Kim
- Department of Pharmacology, School of Medicine, Pusan National University, Gyeongnam, Republic of Korea
- Gene & Cell Therapy Research Center for Vessel-associated Diseases, Pusan National University, Gyeongnam, Republic of Korea
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Wu J, Zhang Y, Yang P, Enkhjargal B, Manaenko A, Tang J, Pearce WJ, Hartman R, Obenaus A, Chen G, Zhang JH. Recombinant Osteopontin Stabilizes Smooth Muscle Cell Phenotype via Integrin Receptor/Integrin-Linked Kinase/Rac-1 Pathway After Subarachnoid Hemorrhage in Rats. Stroke 2016; 47:1319-27. [PMID: 27006454 DOI: 10.1161/strokeaha.115.011552] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2015] [Accepted: 02/22/2016] [Indexed: 01/10/2023]
Abstract
BACKGROUND AND PURPOSE Recombinant osteopontin (rOPN) has been reported to be neuroprotective in stroke animal models. The purpose of this study is to investigate a potential role and mechanism of nasal administration of rOPN on preserving the vascular smooth muscle phenotype in early brain injury after subarachnoid hemorrhage (SAH). METHODS One hundred and ninety-two male adult Sprague-Dawley rats were used. The SAH model was induced by endovascular perforation. Integrin-linked kinase small interfering RNA was intracerebroventricularly injected 48 hours before SAH. The integrin receptor antagonist fibronectin-derived peptide Gly-Arg-Gly-Asp-Ser-Pro (GRGDSP), focal adhesion kinase inhibitor Fib-14, and Rac-1 inhibitor NSC23766 were administered 1 hour before SAH induction. rOPN was administered via the intracerebroventricular and nasal route after SAH. SAH grade, neurological scores, brain water content, brain swelling, hematoxylin and eosin staining, India ink angiography, Western blots, and immunofluorescence were used to study the mechanisms of rOPN on the vascular smooth muscle phenotypic transformation. RESULTS The marker proteins of vascular smooth muscle phenotypic transformation α-smooth muscle actin decreased and embryonic smooth muscle myosin heavy chain (SMemb) increased significantly at 24 and 72 hours in the cerebral arteries after SAH. rOPN prevented the changes of α-smooth muscle actin and SMemb and significantly alleviated neurobehavioral dysfunction, increased the cross-sectional area and the lumen diameter of the cerebral arteries, reduced the brain water content and brain swelling, and improved the wall thickness of cerebral arteries. These effects of rOPN were abolished by GRGDSP, integrin-linked kinase small interfering RNA, and NSC23766. Intranasal application of rOPN at 3 hours after SAH also reduced neurological deficits. CONCLUSIONS rOPN prevented the vascular smooth muscle phenotypic transformation and improved the neurological outcome, which was possibly mediated by the integrin receptor/integrin-linked kinase/Rac-1 pathway.
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Affiliation(s)
- Jiang Wu
- From the Department of Neurosurgery (J.W., G.C.), the First Affiliated Hospital of Soochow University, Suzhou, China; and Department of Physiology (J.W., Y.Z., P.Y., B.E., A.M., J.T., W.J.P., R.H., A.O., J.H.Z.), School of Behavioral Science (R.H.), Department of Pediatrics (A.O.), and Department of Anesthesiology (J.H.Z.), Loma Linda University, CA
| | - Yang Zhang
- From the Department of Neurosurgery (J.W., G.C.), the First Affiliated Hospital of Soochow University, Suzhou, China; and Department of Physiology (J.W., Y.Z., P.Y., B.E., A.M., J.T., W.J.P., R.H., A.O., J.H.Z.), School of Behavioral Science (R.H.), Department of Pediatrics (A.O.), and Department of Anesthesiology (J.H.Z.), Loma Linda University, CA
| | - Peng Yang
- From the Department of Neurosurgery (J.W., G.C.), the First Affiliated Hospital of Soochow University, Suzhou, China; and Department of Physiology (J.W., Y.Z., P.Y., B.E., A.M., J.T., W.J.P., R.H., A.O., J.H.Z.), School of Behavioral Science (R.H.), Department of Pediatrics (A.O.), and Department of Anesthesiology (J.H.Z.), Loma Linda University, CA
| | - Budbazar Enkhjargal
- From the Department of Neurosurgery (J.W., G.C.), the First Affiliated Hospital of Soochow University, Suzhou, China; and Department of Physiology (J.W., Y.Z., P.Y., B.E., A.M., J.T., W.J.P., R.H., A.O., J.H.Z.), School of Behavioral Science (R.H.), Department of Pediatrics (A.O.), and Department of Anesthesiology (J.H.Z.), Loma Linda University, CA
| | - Anatol Manaenko
- From the Department of Neurosurgery (J.W., G.C.), the First Affiliated Hospital of Soochow University, Suzhou, China; and Department of Physiology (J.W., Y.Z., P.Y., B.E., A.M., J.T., W.J.P., R.H., A.O., J.H.Z.), School of Behavioral Science (R.H.), Department of Pediatrics (A.O.), and Department of Anesthesiology (J.H.Z.), Loma Linda University, CA
| | - Jiping Tang
- From the Department of Neurosurgery (J.W., G.C.), the First Affiliated Hospital of Soochow University, Suzhou, China; and Department of Physiology (J.W., Y.Z., P.Y., B.E., A.M., J.T., W.J.P., R.H., A.O., J.H.Z.), School of Behavioral Science (R.H.), Department of Pediatrics (A.O.), and Department of Anesthesiology (J.H.Z.), Loma Linda University, CA
| | - William J Pearce
- From the Department of Neurosurgery (J.W., G.C.), the First Affiliated Hospital of Soochow University, Suzhou, China; and Department of Physiology (J.W., Y.Z., P.Y., B.E., A.M., J.T., W.J.P., R.H., A.O., J.H.Z.), School of Behavioral Science (R.H.), Department of Pediatrics (A.O.), and Department of Anesthesiology (J.H.Z.), Loma Linda University, CA
| | - Richard Hartman
- From the Department of Neurosurgery (J.W., G.C.), the First Affiliated Hospital of Soochow University, Suzhou, China; and Department of Physiology (J.W., Y.Z., P.Y., B.E., A.M., J.T., W.J.P., R.H., A.O., J.H.Z.), School of Behavioral Science (R.H.), Department of Pediatrics (A.O.), and Department of Anesthesiology (J.H.Z.), Loma Linda University, CA
| | - Andre Obenaus
- From the Department of Neurosurgery (J.W., G.C.), the First Affiliated Hospital of Soochow University, Suzhou, China; and Department of Physiology (J.W., Y.Z., P.Y., B.E., A.M., J.T., W.J.P., R.H., A.O., J.H.Z.), School of Behavioral Science (R.H.), Department of Pediatrics (A.O.), and Department of Anesthesiology (J.H.Z.), Loma Linda University, CA
| | - Gang Chen
- From the Department of Neurosurgery (J.W., G.C.), the First Affiliated Hospital of Soochow University, Suzhou, China; and Department of Physiology (J.W., Y.Z., P.Y., B.E., A.M., J.T., W.J.P., R.H., A.O., J.H.Z.), School of Behavioral Science (R.H.), Department of Pediatrics (A.O.), and Department of Anesthesiology (J.H.Z.), Loma Linda University, CA.
| | - John H Zhang
- From the Department of Neurosurgery (J.W., G.C.), the First Affiliated Hospital of Soochow University, Suzhou, China; and Department of Physiology (J.W., Y.Z., P.Y., B.E., A.M., J.T., W.J.P., R.H., A.O., J.H.Z.), School of Behavioral Science (R.H.), Department of Pediatrics (A.O.), and Department of Anesthesiology (J.H.Z.), Loma Linda University, CA.
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NR6A1 couples with cAMP response element binding protein and regulates vascular smooth muscle cell migration. Int J Biochem Cell Biol 2015; 69:225-32. [PMID: 26546462 DOI: 10.1016/j.biocel.2015.10.026] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2015] [Revised: 10/25/2015] [Accepted: 10/30/2015] [Indexed: 01/15/2023]
Abstract
Vascular smooth muscle cell (VSMC) migration is implicated in atherosclerosis and restenosis. Nuclear receptor subfamily 6, group A, member 1 (NR6A1) is involved in regulating embryonic stem cell differentiation, reproduction, neuronal differentiation. Functional cooperation between cAMP response element modulator tau (CREMtau) and NR6A1 can direct gene expression in cells. cAMP response element binding protein (CREB) plays a key role in VSMC migration. In this study, we sought to determine whether CREB involved in NR6A1-modulated VSMC migration. VSMCs treated with platelet-derived growth factor-BB (PDGF-BB) displayed reduced mRNA and protein levels of NR6A1. Adenovirus-mediated expression of NR6A1 (Ad-NR6A1) could inhibit PDGF-BB- and serum-induced VSMC migration. The mRNA and protein expressions of secreted phosphoprotein 1 (SPP1) were down-regulated by NR6A1 overexpression. SPP1 promoter reporter activity was repressed by NR6A1. NR6A1 was found to physically couple with nuclear actin and the large subunit of RNA polymerase II. Furthermore, we showed that CREB interacted with NR6A1 in VSMCs. NR6A1 overexpression repressed cAMP response element (CRE) activity. ChIP assay revealed that NR6A1 bind to SPP1 promoter. Luciferase reporter assay showed that NR6A1 regulated SPP1 promoter activity via a putative CRE site. Adenovirus mediated local NR6A1 gene transfer attenuated stenosis after balloon-induced arterial injury in Sprague-Dawley rats. Taken together, this study provided experimental evidence that NR6A1 modulated SPP1 expression via its binding with CREB protein in VSMCs. We also revealed a NR6A1-CREB-SPP1 axis that serves as a regulatory mechanism for atherosclerosis and restenosis.
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Panax notoginseng Saponins Attenuate Phenotype Switching of Vascular Smooth Muscle Cells Induced by Notch3 Silencing. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2015; 2015:162145. [PMID: 26539217 PMCID: PMC4619902 DOI: 10.1155/2015/162145] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/16/2015] [Revised: 05/20/2015] [Accepted: 05/30/2015] [Indexed: 12/20/2022]
Abstract
Panax notoginseng saponins (PNS) could maintain vascular smooth muscle cells (VSMCs) in stable phenotypes so as to keep blood vessel elasticity as well as prevent failing in endovascular treatment with stent. Downregulation of Notch3 expression in VSMCs could influence the phenotype of VSMCs under pathologic status. However, whether PNS is able to attenuate the Notch3 silencing induced phenotype switching of VSMCs remains poorly understood. Primary human VSMCs were transfected with a plasmid containing a small interfering RNA (siRNA) against Notch3 and then exposed to different doses of PNS. The control groups included cells not receiving any treatment and cells transfected with a control siRNA. Phenotypic switching was evaluated by observing cell morphology with confocal microscopy, as well as examining α-SM-actin, SM22α, and OPN using Western blot. Downregulated Notch3 with a siRNA induced apparent phenotype switching, as reflected by morphologic changes, decreased expression of α-SM-actin and SM22α and increased expression of OPN. These changes were inhibited by PNS in a dose-dependent manner. The phenotype switching of VSMCs induced by Notch3 knockdown could be inhibited by PNS in a dose-dependent manner. Our study provided new evidence for searching effective drug for amending stability of atherosclerotic disease.
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Martín-Alonso M, García-Redondo AB, Guo D, Camafeita E, Martínez F, Alfranca A, Méndez-Barbero N, Pollán Á, Sánchez-Camacho C, Denhardt DT, Seiki M, Vázquez J, Salaices M, Redondo JM, Milewicz D, Arroyo AG. Deficiency of MMP17/MT4-MMP proteolytic activity predisposes to aortic aneurysm in mice. Circ Res 2015; 117:e13-26. [PMID: 25963716 DOI: 10.1161/circresaha.117.305108] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2014] [Accepted: 05/08/2015] [Indexed: 11/16/2022]
Abstract
RATIONALE Aortic dissection or rupture resulting from aneurysm causes 1% to 2% of deaths in developed countries. These disorders are associated with mutations in genes that affect vascular smooth muscle cell differentiation and contractility or extracellular matrix composition and assembly. However, as many as 75% of patients with a family history of aortic aneurysms do not have an identified genetic syndrome. OBJECTIVE To determine the role of the protease MMP17/MT4-MMP in the arterial wall and its possible relevance in human aortic pathology. METHODS AND RESULTS Screening of patients with inherited thoracic aortic aneurysms and dissections identified a missense mutation (R373H) in the MMP17 gene that prevented the expression of the protease in human transfected cells. Using a loss-of-function genetic mouse model, we demonstrated that the lack of Mmp17 resulted in the presence of dysfunctional vascular smooth muscle cells and altered extracellular matrix in the vessel wall; and it led to increased susceptibility to angiotensin-II-induced thoracic aortic aneurysm. We also showed that Mmp17-mediated osteopontin cleavage regulated vascular smooth muscle cell maturation via c-Jun N-terminal kinase signaling during aorta wall development. Some features of the arterial phenotype were prevented by re-expression of catalytically active Mmp17 or the N-terminal osteopontin fragment in Mmp17-null neonates. CONCLUSIONS Mmp17 proteolytic activity regulates vascular smooth muscle cell phenotype in the arterial vessel wall, and its absence predisposes to thoracic aortic aneurysm in mice. The rescue of part of the vessel-wall phenotype by a lentiviral strategy opens avenues for therapeutic intervention in these life-threatening disorders.
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MESH Headings
- Adult
- Amino Acid Substitution
- Aortic Dissection/genetics
- Angiotensin II
- Animals
- Aorta/embryology
- Aorta/pathology
- Aortic Aneurysm, Thoracic/genetics
- Aortic Aneurysm, Thoracic/pathology
- Aortic Aneurysm, Thoracic/therapy
- Aortic Rupture/etiology
- Extracellular Matrix/pathology
- Extracellular Matrix Proteins/metabolism
- Genetic Predisposition to Disease
- Genetic Therapy
- Genetic Vectors/therapeutic use
- HEK293 Cells
- Humans
- Lentivirus/genetics
- Male
- Matrix Metalloproteinases, Membrane-Associated/chemistry
- Matrix Metalloproteinases, Membrane-Associated/deficiency
- Matrix Metalloproteinases, Membrane-Associated/genetics
- Matrix Metalloproteinases, Membrane-Associated/physiology
- Mice
- Mice, Inbred C57BL
- Mice, Knockout
- Muscle, Smooth, Vascular/pathology
- Mutation, Missense
- Osteopontin/metabolism
- Protein Conformation
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Affiliation(s)
- Mara Martín-Alonso
- From the Department of Vascular Biology and Inflammation (M.M.-A., A.A., N.M.-B., A.P., J.M.R., A.G.A.), Proteomics Unit (E.C., J.V.) and Bioinformatics Unit (F.M.), Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Madrid, Spain; Department of Pharmacology/Nephrology, Faculty of Medicine, Universidad Autónoma de Madrid, Madrid, Spain (A.B.G.-R., M.S.); Department of Internal Medicine, University of Texas Health Science Center at Houston, TX (D.G., D.M.); Department of Basic Biomedical Sciences, Universidad Europea de Madrid, Villaviciosa de Odón, Madrid, Spain (C.S.-C.); Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, NJ (D.T.D.); and Division of Cancer Cell Research, Institute of Medical Science, University of Tokyo, Minato-ku, Tokyo, Japan (M.S.)
| | - Ana B García-Redondo
- From the Department of Vascular Biology and Inflammation (M.M.-A., A.A., N.M.-B., A.P., J.M.R., A.G.A.), Proteomics Unit (E.C., J.V.) and Bioinformatics Unit (F.M.), Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Madrid, Spain; Department of Pharmacology/Nephrology, Faculty of Medicine, Universidad Autónoma de Madrid, Madrid, Spain (A.B.G.-R., M.S.); Department of Internal Medicine, University of Texas Health Science Center at Houston, TX (D.G., D.M.); Department of Basic Biomedical Sciences, Universidad Europea de Madrid, Villaviciosa de Odón, Madrid, Spain (C.S.-C.); Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, NJ (D.T.D.); and Division of Cancer Cell Research, Institute of Medical Science, University of Tokyo, Minato-ku, Tokyo, Japan (M.S.)
| | - Dongchuan Guo
- From the Department of Vascular Biology and Inflammation (M.M.-A., A.A., N.M.-B., A.P., J.M.R., A.G.A.), Proteomics Unit (E.C., J.V.) and Bioinformatics Unit (F.M.), Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Madrid, Spain; Department of Pharmacology/Nephrology, Faculty of Medicine, Universidad Autónoma de Madrid, Madrid, Spain (A.B.G.-R., M.S.); Department of Internal Medicine, University of Texas Health Science Center at Houston, TX (D.G., D.M.); Department of Basic Biomedical Sciences, Universidad Europea de Madrid, Villaviciosa de Odón, Madrid, Spain (C.S.-C.); Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, NJ (D.T.D.); and Division of Cancer Cell Research, Institute of Medical Science, University of Tokyo, Minato-ku, Tokyo, Japan (M.S.)
| | - Emilio Camafeita
- From the Department of Vascular Biology and Inflammation (M.M.-A., A.A., N.M.-B., A.P., J.M.R., A.G.A.), Proteomics Unit (E.C., J.V.) and Bioinformatics Unit (F.M.), Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Madrid, Spain; Department of Pharmacology/Nephrology, Faculty of Medicine, Universidad Autónoma de Madrid, Madrid, Spain (A.B.G.-R., M.S.); Department of Internal Medicine, University of Texas Health Science Center at Houston, TX (D.G., D.M.); Department of Basic Biomedical Sciences, Universidad Europea de Madrid, Villaviciosa de Odón, Madrid, Spain (C.S.-C.); Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, NJ (D.T.D.); and Division of Cancer Cell Research, Institute of Medical Science, University of Tokyo, Minato-ku, Tokyo, Japan (M.S.)
| | - Fernando Martínez
- From the Department of Vascular Biology and Inflammation (M.M.-A., A.A., N.M.-B., A.P., J.M.R., A.G.A.), Proteomics Unit (E.C., J.V.) and Bioinformatics Unit (F.M.), Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Madrid, Spain; Department of Pharmacology/Nephrology, Faculty of Medicine, Universidad Autónoma de Madrid, Madrid, Spain (A.B.G.-R., M.S.); Department of Internal Medicine, University of Texas Health Science Center at Houston, TX (D.G., D.M.); Department of Basic Biomedical Sciences, Universidad Europea de Madrid, Villaviciosa de Odón, Madrid, Spain (C.S.-C.); Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, NJ (D.T.D.); and Division of Cancer Cell Research, Institute of Medical Science, University of Tokyo, Minato-ku, Tokyo, Japan (M.S.)
| | - Arántzazu Alfranca
- From the Department of Vascular Biology and Inflammation (M.M.-A., A.A., N.M.-B., A.P., J.M.R., A.G.A.), Proteomics Unit (E.C., J.V.) and Bioinformatics Unit (F.M.), Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Madrid, Spain; Department of Pharmacology/Nephrology, Faculty of Medicine, Universidad Autónoma de Madrid, Madrid, Spain (A.B.G.-R., M.S.); Department of Internal Medicine, University of Texas Health Science Center at Houston, TX (D.G., D.M.); Department of Basic Biomedical Sciences, Universidad Europea de Madrid, Villaviciosa de Odón, Madrid, Spain (C.S.-C.); Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, NJ (D.T.D.); and Division of Cancer Cell Research, Institute of Medical Science, University of Tokyo, Minato-ku, Tokyo, Japan (M.S.)
| | - Nerea Méndez-Barbero
- From the Department of Vascular Biology and Inflammation (M.M.-A., A.A., N.M.-B., A.P., J.M.R., A.G.A.), Proteomics Unit (E.C., J.V.) and Bioinformatics Unit (F.M.), Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Madrid, Spain; Department of Pharmacology/Nephrology, Faculty of Medicine, Universidad Autónoma de Madrid, Madrid, Spain (A.B.G.-R., M.S.); Department of Internal Medicine, University of Texas Health Science Center at Houston, TX (D.G., D.M.); Department of Basic Biomedical Sciences, Universidad Europea de Madrid, Villaviciosa de Odón, Madrid, Spain (C.S.-C.); Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, NJ (D.T.D.); and Division of Cancer Cell Research, Institute of Medical Science, University of Tokyo, Minato-ku, Tokyo, Japan (M.S.)
| | - Ángela Pollán
- From the Department of Vascular Biology and Inflammation (M.M.-A., A.A., N.M.-B., A.P., J.M.R., A.G.A.), Proteomics Unit (E.C., J.V.) and Bioinformatics Unit (F.M.), Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Madrid, Spain; Department of Pharmacology/Nephrology, Faculty of Medicine, Universidad Autónoma de Madrid, Madrid, Spain (A.B.G.-R., M.S.); Department of Internal Medicine, University of Texas Health Science Center at Houston, TX (D.G., D.M.); Department of Basic Biomedical Sciences, Universidad Europea de Madrid, Villaviciosa de Odón, Madrid, Spain (C.S.-C.); Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, NJ (D.T.D.); and Division of Cancer Cell Research, Institute of Medical Science, University of Tokyo, Minato-ku, Tokyo, Japan (M.S.)
| | - Cristina Sánchez-Camacho
- From the Department of Vascular Biology and Inflammation (M.M.-A., A.A., N.M.-B., A.P., J.M.R., A.G.A.), Proteomics Unit (E.C., J.V.) and Bioinformatics Unit (F.M.), Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Madrid, Spain; Department of Pharmacology/Nephrology, Faculty of Medicine, Universidad Autónoma de Madrid, Madrid, Spain (A.B.G.-R., M.S.); Department of Internal Medicine, University of Texas Health Science Center at Houston, TX (D.G., D.M.); Department of Basic Biomedical Sciences, Universidad Europea de Madrid, Villaviciosa de Odón, Madrid, Spain (C.S.-C.); Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, NJ (D.T.D.); and Division of Cancer Cell Research, Institute of Medical Science, University of Tokyo, Minato-ku, Tokyo, Japan (M.S.)
| | - David T Denhardt
- From the Department of Vascular Biology and Inflammation (M.M.-A., A.A., N.M.-B., A.P., J.M.R., A.G.A.), Proteomics Unit (E.C., J.V.) and Bioinformatics Unit (F.M.), Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Madrid, Spain; Department of Pharmacology/Nephrology, Faculty of Medicine, Universidad Autónoma de Madrid, Madrid, Spain (A.B.G.-R., M.S.); Department of Internal Medicine, University of Texas Health Science Center at Houston, TX (D.G., D.M.); Department of Basic Biomedical Sciences, Universidad Europea de Madrid, Villaviciosa de Odón, Madrid, Spain (C.S.-C.); Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, NJ (D.T.D.); and Division of Cancer Cell Research, Institute of Medical Science, University of Tokyo, Minato-ku, Tokyo, Japan (M.S.)
| | - Motoharu Seiki
- From the Department of Vascular Biology and Inflammation (M.M.-A., A.A., N.M.-B., A.P., J.M.R., A.G.A.), Proteomics Unit (E.C., J.V.) and Bioinformatics Unit (F.M.), Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Madrid, Spain; Department of Pharmacology/Nephrology, Faculty of Medicine, Universidad Autónoma de Madrid, Madrid, Spain (A.B.G.-R., M.S.); Department of Internal Medicine, University of Texas Health Science Center at Houston, TX (D.G., D.M.); Department of Basic Biomedical Sciences, Universidad Europea de Madrid, Villaviciosa de Odón, Madrid, Spain (C.S.-C.); Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, NJ (D.T.D.); and Division of Cancer Cell Research, Institute of Medical Science, University of Tokyo, Minato-ku, Tokyo, Japan (M.S.)
| | - Jesús Vázquez
- From the Department of Vascular Biology and Inflammation (M.M.-A., A.A., N.M.-B., A.P., J.M.R., A.G.A.), Proteomics Unit (E.C., J.V.) and Bioinformatics Unit (F.M.), Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Madrid, Spain; Department of Pharmacology/Nephrology, Faculty of Medicine, Universidad Autónoma de Madrid, Madrid, Spain (A.B.G.-R., M.S.); Department of Internal Medicine, University of Texas Health Science Center at Houston, TX (D.G., D.M.); Department of Basic Biomedical Sciences, Universidad Europea de Madrid, Villaviciosa de Odón, Madrid, Spain (C.S.-C.); Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, NJ (D.T.D.); and Division of Cancer Cell Research, Institute of Medical Science, University of Tokyo, Minato-ku, Tokyo, Japan (M.S.)
| | - Mercedes Salaices
- From the Department of Vascular Biology and Inflammation (M.M.-A., A.A., N.M.-B., A.P., J.M.R., A.G.A.), Proteomics Unit (E.C., J.V.) and Bioinformatics Unit (F.M.), Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Madrid, Spain; Department of Pharmacology/Nephrology, Faculty of Medicine, Universidad Autónoma de Madrid, Madrid, Spain (A.B.G.-R., M.S.); Department of Internal Medicine, University of Texas Health Science Center at Houston, TX (D.G., D.M.); Department of Basic Biomedical Sciences, Universidad Europea de Madrid, Villaviciosa de Odón, Madrid, Spain (C.S.-C.); Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, NJ (D.T.D.); and Division of Cancer Cell Research, Institute of Medical Science, University of Tokyo, Minato-ku, Tokyo, Japan (M.S.)
| | - Juan Miguel Redondo
- From the Department of Vascular Biology and Inflammation (M.M.-A., A.A., N.M.-B., A.P., J.M.R., A.G.A.), Proteomics Unit (E.C., J.V.) and Bioinformatics Unit (F.M.), Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Madrid, Spain; Department of Pharmacology/Nephrology, Faculty of Medicine, Universidad Autónoma de Madrid, Madrid, Spain (A.B.G.-R., M.S.); Department of Internal Medicine, University of Texas Health Science Center at Houston, TX (D.G., D.M.); Department of Basic Biomedical Sciences, Universidad Europea de Madrid, Villaviciosa de Odón, Madrid, Spain (C.S.-C.); Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, NJ (D.T.D.); and Division of Cancer Cell Research, Institute of Medical Science, University of Tokyo, Minato-ku, Tokyo, Japan (M.S.)
| | - Dianna Milewicz
- From the Department of Vascular Biology and Inflammation (M.M.-A., A.A., N.M.-B., A.P., J.M.R., A.G.A.), Proteomics Unit (E.C., J.V.) and Bioinformatics Unit (F.M.), Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Madrid, Spain; Department of Pharmacology/Nephrology, Faculty of Medicine, Universidad Autónoma de Madrid, Madrid, Spain (A.B.G.-R., M.S.); Department of Internal Medicine, University of Texas Health Science Center at Houston, TX (D.G., D.M.); Department of Basic Biomedical Sciences, Universidad Europea de Madrid, Villaviciosa de Odón, Madrid, Spain (C.S.-C.); Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, NJ (D.T.D.); and Division of Cancer Cell Research, Institute of Medical Science, University of Tokyo, Minato-ku, Tokyo, Japan (M.S.)
| | - Alicia G Arroyo
- From the Department of Vascular Biology and Inflammation (M.M.-A., A.A., N.M.-B., A.P., J.M.R., A.G.A.), Proteomics Unit (E.C., J.V.) and Bioinformatics Unit (F.M.), Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Madrid, Spain; Department of Pharmacology/Nephrology, Faculty of Medicine, Universidad Autónoma de Madrid, Madrid, Spain (A.B.G.-R., M.S.); Department of Internal Medicine, University of Texas Health Science Center at Houston, TX (D.G., D.M.); Department of Basic Biomedical Sciences, Universidad Europea de Madrid, Villaviciosa de Odón, Madrid, Spain (C.S.-C.); Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, NJ (D.T.D.); and Division of Cancer Cell Research, Institute of Medical Science, University of Tokyo, Minato-ku, Tokyo, Japan (M.S.).
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39
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Wolak T. Osteopontin - a multi-modal marker and mediator in atherosclerotic vascular disease. Atherosclerosis 2014; 236:327-37. [PMID: 25128758 DOI: 10.1016/j.atherosclerosis.2014.07.004] [Citation(s) in RCA: 105] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2014] [Revised: 06/26/2014] [Accepted: 07/07/2014] [Indexed: 02/07/2023]
Abstract
Atherosclerosis is a chronic inflammatory process of the vessel wall with systemic correlates. It is now well established that patients' outcome is tightly linked to atherosclerotic plaque stability, potentially more so than to the mere plaque size. Osteopontin (OPN) is an integrin-binding ligand, N-linked glycoprotein, which was recognized as a significant participant in the atherosclerotic inflammatory milieu. Evidence from several genetic mouse models suggests that OPN is an enhancer of atherosclerosis. This may be mediated by its capacity to enhance inflammation in the atherosclerotic plaque. Interestingly, OPN may also possess potentially protective vascular effects, such as attenuation of vascular calcification. In humans circulating levels of OPN were found to be independently associated with the severity of coronary atherosclerosis. Moreover, several studies report that high plasma OPN levels were associated with increased risk for major adverse cardiac events. This review aims to critically assess current understanding of the role of OPN in the atherosclerotic process, from animal models to clinical practice. Specific focus is given to evaluating whether OPN could serve as a marker for monitoring coronary atherosclerosis severity, and in parallel, assess the evidence for its role as a mediator in the pathogenic pathways leading to atherosclerotic vascular disease.
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Affiliation(s)
- Talya Wolak
- Hypertension Unit Faculty of Health Sciences, Soroka University Medical Center, Ben-Gurion University of the Negev, Be'er-Sheva, Israel.
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40
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Berezin A, Kremzer A. Circulating osteopontin as a marker of early coronary vascular calcification in type two diabetes mellitus patients with known asymptomatic coronary artery disease. Atherosclerosis 2013; 229:475-81. [PMID: 23880208 DOI: 10.1016/j.atherosclerosis.2013.06.003] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/04/2013] [Revised: 04/27/2013] [Accepted: 06/02/2013] [Indexed: 12/18/2022]
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Welter H, Kampfer C, Lauf S, Feil R, Schwarzer JU, Köhn FM, Mayerhofer A. Partial loss of contractile marker proteins in human testicular peritubular cells in infertility patients. Andrology 2013; 1:318-24. [PMID: 23413143 DOI: 10.1111/j.2047-2927.2012.00030.x] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2012] [Revised: 09/20/2012] [Accepted: 09/24/2012] [Indexed: 12/16/2023]
Abstract
Fibrotic remodelling of the testicular tubular wall is common in human male infertility caused by impaired spermatogenesis. We hypothesized that this morphological change bears witness of an underlying fundamentally altered state of the cells building this wall, that is, peritubular smooth muscle-like cells. This could include a loss of the contractile abilities of these cells and thus be a factor in male infertility. Immune cells are increased in the tubular wall in these cases, hence local immune cell-related factors, including a prostaglandin (PG) metabolite may be involved. To explore these points in the human, we used testicular biopsies, in which tubules with normal spermatogenesis and impaired spermatogenesis are next to each other [mixed atrophy (MA)], normal biopsies and cultured human testicular peritubular cells. Proteins essential for contraction, myosin heavy chain (MYH11), calponin (Cal) and relaxation, cGMP-dependent protein kinase 1 (cGKI), were readily detected by immunohistochemistry and were equally distributed in all peritubular cells of biopsies with normal spermatogenesis. In all biopsies, vascular smooth muscle cells also stained and served as important intrinsic controls, which showed that in MA samples when spermatogenesis was impaired, staining was restricted to only few peritubular cells or was absent. When spermatogenesis was normal, regular peritubular staining became obvious. This pattern suggests complex regulatory influences, which in face of the identical systemic hormonal situation in MA patients, are likely caused by the local testicular micromilieu. The PG metabolite 15dPGJ2 may represent such a factor and it reduced Cal protein levels in peritubular cells from patients with/without impaired spermatogenesis. The documented phenotypic switch of peritubular, smooth muscle-like cells in MA patients may impair the abilities of the afflicted seminiferous tubules to contract and relax and must now be considered as a part of the complex events in male infertility.
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Affiliation(s)
- H Welter
- Anatomy III - Cell Biology, Ludwig Maximilian University, Munich, Germany
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Parolari A, Tremoli E, Songia P, Pilozzi A, Di Bartolomeo R, Alamanni F, Mestres CA, Pacini D. Biological features of thoracic aortic diseases. Where are we now, where are we heading to: established and emerging biomarkers and molecular pathways. Eur J Cardiothorac Surg 2013; 44:9-23. [PMID: 23293317 DOI: 10.1093/ejcts/ezs647] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Thoracic aortic aneurysms (TAAs) and aortic dissections (ADs) are among the main causes of mortality and morbidity in Western countries. For this reason, the diagnosis, prevention and prediction of TAAs and ADs have become a very active area of research; in fact, it is important to monitor and predict the evolution of these diseases over time. It is also critical, in cases of doubtful diagnosis, to receive some guidance from biochemical assays, particularly in the case of ADs. Although biological testing for disease prediction has already been discussed several times, the role of biomarkers in TAAs and ADs is still under discussion for routine patient screening, periodical follow-up or for prompt diagnosis in emergency conditions. In this review, we update the current knowledge and new trends regarding the role of biomarkers in thoracic aortic diseases, focusing on established and emerging biomarkers in the fields of genetics, inflammation, haemostasis and matrix remodelling as well as on substances released upon cell damage. Other than D-dimer, a sensitive but not a specific marker for the diagnosis of AD that has been widely tested by several authors and currently seems a viable option in ambiguous cases, the remaining markers have been most frequently assessed in limited or mixed patient populations. This currently precludes their widespread adoption as diagnostic or prognostic tools, even if many of these markers are conceptually promising. In years to come, we expect that future studies will further clarify the diagnostic and prognostic features of several established and emerging biomarkers that, to date, are still in the translational limbo separating biological discovery from a practical clinical role.
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Affiliation(s)
- Alessandro Parolari
- Dipartimento di Scienze Cardiovascolari, Università degli Studi di Milano, Milan, Italy.
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Serrano I, McDonald PC, Lock FE, Dedhar S. Role of the integrin-linked kinase (ILK)/Rictor complex in TGFβ-1-induced epithelial-mesenchymal transition (EMT). Oncogene 2012; 32:50-60. [PMID: 22310280 DOI: 10.1038/onc.2012.30] [Citation(s) in RCA: 108] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Epithelial-to-mesenchymal transition (EMT) causes fibrosis, cancer progression and metastasis. Integrin-linked kinase (ILK) is a focal adhesion adaptor and a serine/threonine protein kinase that regulates cell proliferation, survival and EMT. Elucidating the molecular mechanisms necessary for development and progression of human malignancies is critical to predict the most appropriate targets for cancer therapy. Here, we used transforming growth factor beta-1 (TGFβ-1) to promote EMT and migration in mammary epithelial cells. We demonstrate a requirement of ILK activity for TGFβ-1-mediated EMT in mammary epithelial cells. In addition to nuclear translocation of Snail and Slug, TGFβ-1 treatment also induced expression of the mammalian target of rapamycin complex 2 component Rictor and its phosphorylation on Thr1135. Interestingly, TGFβ-1 treatment also induced an interaction between ILK and Rictor. All of these TGFβ-1-induced processes were significantly suppressed by inhibiting ILK activity or by disrupting the ILK/Rictor complex using small-interfering RNA-mediated knockdown. Furthermore, we identified ILK/Rictor complex formation in cancer but not in normal cell types, and this was accompanied by ILK-dependent phosphorylation of Rictor on residue Thr1135. Inhibition of ILK partially reversed the basal mesenchymal phenotype of MDA-MB-231 cells and prevented EMT in MCF10A cells after TGFβ-1 treatment. These data demonstrate a requirement for ILK function in TGFβ-1-induced EMT in mammary epithelial cells and identify the ILK/Rictor complex as a potential molecular target for preventing/reversing EMT.
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Affiliation(s)
- I Serrano
- Department of Integrative Oncology, British Columbia Cancer Research Centre, BC Cancer Agency, Vancouver, British Columbia, Canada
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