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Zhao W, Li B, Hao J, Sun R, He P, Lv H, He M, Shen J, Han Y. Therapeutic potential of natural products and underlying targets for the treatment of aortic aneurysm. Pharmacol Ther 2024; 259:108652. [PMID: 38657777 DOI: 10.1016/j.pharmthera.2024.108652] [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: 12/25/2023] [Revised: 03/22/2024] [Accepted: 04/16/2024] [Indexed: 04/26/2024]
Abstract
Aortic aneurysm is a vascular disease characterized by irreversible vasodilatation that can lead to dissection and rupture of the aortic aneurysm, a life-threatening condition. Thoracic aortic aneurysm (TAA) and abdominal aortic aneurysm (AAA) are two main types. The typical treatments for aortic aneurysms are open surgery and endovascular aortic repair, which are only indicated for more severe patients. Most patients with aneurysms have an insidious onset and slow progression, and there are no effective drugs to treat this stage. The inability of current animal models to perfectly simulate all the pathophysiological states of human aneurysms may be the key to this issue. Therefore, elucidating the molecular mechanisms of this disease, finding new therapeutic targets, and developing effective drugs to inhibit the development of aneurysms are the main issues of current research. Natural products have been applied for thousands of years to treat cardiovascular disease (CVD) in China and other Asian countries. In recent years, natural products have combined multi-omics, computational biology, and integrated pharmacology to accurately analyze drug components and targets. Therefore, the multi-component and multi-target complexity of natural products have made them a potentially ideal treatment for multifactorial diseases such as aortic aneurysms. Natural products have regained popularity worldwide. This review provides an overview of the known natural products for the treatment of TAA and AAA and searches for potential cardiovascular-targeted natural products that may treat TAA and AAA based on various cellular molecular mechanisms associated with aneurysm development.
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Affiliation(s)
- Wenwen Zhao
- School of Basic Medicine, Qingdao Medical College, Qingdao University, Qingdao 266071, China.
| | - Bufan Li
- School of Basic Medicine, Qingdao Medical College, Qingdao University, Qingdao 266071, China
| | - Jinjun Hao
- School of Basic Medicine, Qingdao Medical College, Qingdao University, Qingdao 266071, China
| | - Ruochen Sun
- School of Basic Medicine, Qingdao Medical College, Qingdao University, Qingdao 266071, China
| | - Peng He
- School of Basic Medicine, Qingdao Medical College, Qingdao University, Qingdao 266071, China
| | - Hongyu Lv
- School of Basic Medicine, Qingdao Medical College, Qingdao University, Qingdao 266071, China
| | - Mou He
- School of Basic Medicine, Qingdao Medical College, Qingdao University, Qingdao 266071, China
| | - Jie Shen
- School of Basic Medicine, Qingdao Medical College, Qingdao University, Qingdao 266071, China
| | - Yantao Han
- School of Basic Medicine, Qingdao Medical College, Qingdao University, Qingdao 266071, China.
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Chao CL, Applewhite B, Reddy NK, Matiuto N, Dang C, Jiang B. Advances and challenges in regenerative therapies for abdominal aortic aneurysm. Front Cardiovasc Med 2024; 11:1369785. [PMID: 38895536 PMCID: PMC11183335 DOI: 10.3389/fcvm.2024.1369785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Accepted: 05/20/2024] [Indexed: 06/21/2024] Open
Abstract
Abdominal aortic aneurysm (AAA) is a significant source of mortality worldwide and carries a mortality of greater than 80% after rupture. Despite extensive efforts to develop pharmacological treatments, there is currently no effective agent to prevent aneurysm growth and rupture. Current treatment paradigms only rely on the identification and surveillance of small aneurysms, prior to ultimate open surgical or endovascular repair. Recently, regenerative therapies have emerged as promising avenues to address the degenerative changes observed in AAA. This review briefly outlines current clinical management principles, characteristics, and pharmaceutical targets of AAA. Subsequently, a thorough discussion of regenerative approaches is provided. These include cellular approaches (vascular smooth muscle cells, endothelial cells, and mesenchymal stem cells) as well as the delivery of therapeutic molecules, gene therapies, and regenerative biomaterials. Lastly, additional barriers and considerations for clinical translation are provided. In conclusion, regenerative approaches hold significant promise for in situ reversal of tissue damages in AAA, necessitating sustained research and innovation to achieve successful and translatable therapies in a new era in AAA management.
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Affiliation(s)
- Calvin L. Chao
- Division of Vascular Surgery, Department of Surgery, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
| | - Brandon Applewhite
- Department of Biomedical Engineering, Northwestern University McCormick School of Engineering, Chicago, IL, United States
| | - Nidhi K. Reddy
- Division of Vascular Surgery, Department of Surgery, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
| | - Natalia Matiuto
- Division of Vascular Surgery, Department of Surgery, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
| | - Caitlyn Dang
- Division of Vascular Surgery, Department of Surgery, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
| | - Bin Jiang
- Division of Vascular Surgery, Department of Surgery, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
- Department of Biomedical Engineering, Northwestern University McCormick School of Engineering, Chicago, IL, United States
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3
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Yau J, Chukwu P, Jedlicka SS, Ramamurthi A. Assessing trans-endothelial transport of nanoparticles for delivery to abdominal aortic aneurysms. J Biomed Mater Res A 2024; 112:881-894. [PMID: 38192169 DOI: 10.1002/jbm.a.37667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 12/19/2023] [Accepted: 12/27/2023] [Indexed: 01/10/2024]
Abstract
Abdominal aortic aneurysms (AAAs) are localized, rupture-prone expansions of the abdominal aorta wall. In this condition, structural extracellular matrix (ECM) proteins of the aorta wall, elastic fibers and collagen fibers, that impart elasticity and stiffness respectively, are slowly degraded by overexpressed matrix metalloproteinases (MMPs) following an injury stimulus. We are seeking to deliver therapeutics to the AAA wall using polymer nanoparticles (NPs) that are capable of stimulating on-site matrix regeneration and repair. This study aimed to determine how NP shape and size impacts endocytosis and transmigration past the endothelial cell (EC) layer from circulation into the medial layer of the AAA wall. First, rod-shaped NPs were shown to be created based mechanical stretching of PLGA NPs while embedded in a PVA film with longer rod-shaped NPs created based of the degree in which the PVA films are stretched. Live/dead assay reveals that our PLGA NPs are safe and do not cause cell death. Immunofluorescence staining reveal cytokine activation causes endothelial dysfunction in ECs by increasing expression of inflammatory marker Integrin αVβ3 and decreasing expression of adhesion protein vascular endothelial (VE)-cadherin. We showed this disruption enable greater EC uptake and translocation of NPs. Fluorescence studies demonstrate high endothelial transmigration and endocytosis with rod-shaped NPs in cytokine activated ECs compared to healthy control cells, arguing for the benefits of using higher aspect ratio (AR) NPs for accumulation at the aneurysm site. We also demonstrated that the mechanisms of NP transmigration across an activated EC layer depend on NP AR. These results show the potential of using shape as a modality for enhancing permeation of NPs into the aneurysm wall. These studies are also significance to understanding the mechanisms that are likely engaged by NPs for penetrating the endothelial lining of aneurysmal wall segments.
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Affiliation(s)
- Jimmy Yau
- Department of Bioengineering, Lehigh University, Bethlehem, Pennsylvania, USA
| | - Patience Chukwu
- Department of Bioengineering, Lehigh University, Bethlehem, Pennsylvania, USA
| | - Sabrina S Jedlicka
- Department of Bioengineering, Lehigh University, Bethlehem, Pennsylvania, USA
| | - Anand Ramamurthi
- Department of Bioengineering, Lehigh University, Bethlehem, Pennsylvania, USA
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Wei Y, Jiang H, Li F, Chai C, Xu Y, Xing M, Deng W, Wang H, Zhu Y, Yang S, Yu Y, Wang W, Wei Y, Guo Y, Tian J, Du J, Guo Z, Wang Y, Zhao Q. Extravascular administration of IGF1R antagonists protects against aortic aneurysm in rodent and porcine models. Sci Transl Med 2024; 16:eadh1763. [PMID: 38691618 DOI: 10.1126/scitranslmed.adh1763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Accepted: 04/10/2024] [Indexed: 05/03/2024]
Abstract
An abdominal aortic aneurysm (AAA) is a life-threatening cardiovascular disease. We identified plasma insulin-like growth factor 1 (IGF1) as an independent risk factor in patients with AAA by correlating plasma IGF1 with risk. Smooth muscle cell- or fibroblast-specific knockout of Igf1r, the gene encoding the IGF1 receptor (IGF1R), attenuated AAA formation in two mouse models of AAA induced by angiotensin II infusion or CaCl2 treatment. IGF1R was activated in aortic aneurysm samples from human patients and mice with AAA. Systemic administration of IGF1C, a peptide fragment of IGF1, 2 weeks after disease development inhibited AAA progression in mice. Decreased AAA formation was linked to competitive inhibition of IGF1 binding to its receptor by IGF1C and modulation of downstream alpha serine/threonine protein kinase (AKT)/mammalian target of rapamycin signaling. Localized application of an IGF1C-loaded hydrogel was developed to reduce the side effects observed after systemic administration of IGF1C or IGF1R antagonists in the CaCl2-induced AAA mouse model. The inhibitory effect of the IGF1C-loaded hydrogel administered at disease onset on AAA formation was further evaluated in a guinea pig-to-rat xenograft model and in a sheep-to-minipig xenograft model of AAA formation. The therapeutic efficacy of IGF1C for treating AAA was tested through extravascular delivery in the sheep-to-minipig model with AAA established for 2 weeks. Percutaneous injection of the IGF1C-loaded hydrogel around the AAA resulted in improved vessel flow dynamics in the minipig aorta. These findings suggest that extravascular administration of IGF1R antagonists may have translational potential for treating AAA.
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Affiliation(s)
- Yongzhen Wei
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials (Ministry of Education), Frontiers Science Center for Cell Responses, College of Life Sciences, Nankai University, Tianjin 300071, China
- The Institute of Cardiovascular Sciences, School of Basic Medical Sciences, State Key Laboratory of Vascular Homeostasis and Remodeling, Health Science Center, Peking University, Beijing 100191, China
| | - Huan Jiang
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials (Ministry of Education), Frontiers Science Center for Cell Responses, College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Fengjuan Li
- Beijing Collaborative Innovation Centre for Cardiovascular Disorders, Key Laboratory of Remodeling-Related Cardiovascular Disease, Ministry of Education, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
| | - Chao Chai
- Department of Radiology, Tianjin Institute of Imaging Medicine, Tianjin First Central Hospital, School of Medicine, Nankai University, Tianjin 300192, China
| | - Yaping Xu
- Zhengzhou Cardiovascular Hospital and 7th People's Hospital of Zhengzhou, Zhengzhou, China
| | - Mengmeng Xing
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials (Ministry of Education), Frontiers Science Center for Cell Responses, College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Weiliang Deng
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials (Ministry of Education), Frontiers Science Center for Cell Responses, College of Life Sciences, Nankai University, Tianjin 300071, China
| | - He Wang
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials (Ministry of Education), Frontiers Science Center for Cell Responses, College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Yuexin Zhu
- Beijing Collaborative Innovation Centre for Cardiovascular Disorders, Key Laboratory of Remodeling-Related Cardiovascular Disease, Ministry of Education, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
| | - Sen Yang
- Department of Vascular Surgery, Tianjin First Central Hospital, Nankai University, Tianjin 300192, China
| | - Yongquan Yu
- Department of Radiology, Weihai Central Hospital, Weihai 264400, China
| | - Wenming Wang
- State Key Laboratory of Medicinal Chemical Biology, College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Yan Wei
- Zhengzhou Cardiovascular Hospital and 7th People's Hospital of Zhengzhou, Zhengzhou, China
| | - Yu Guo
- State Key Laboratory of Medicinal Chemical Biology, College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Jinwei Tian
- Department of Cardiology, Second Affiliated Hospital of Harbin Medical University, Harbin 150086, China
| | - Jie Du
- Beijing Collaborative Innovation Centre for Cardiovascular Disorders, Key Laboratory of Remodeling-Related Cardiovascular Disease, Ministry of Education, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
| | - Zhikun Guo
- Zhengzhou Cardiovascular Hospital and 7th People's Hospital of Zhengzhou, Zhengzhou, China
| | - Yuan Wang
- Beijing Collaborative Innovation Centre for Cardiovascular Disorders, Key Laboratory of Remodeling-Related Cardiovascular Disease, Ministry of Education, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
| | - Qiang Zhao
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials (Ministry of Education), Frontiers Science Center for Cell Responses, College of Life Sciences, Nankai University, Tianjin 300071, China
- The Institute of Cardiovascular Sciences, School of Basic Medical Sciences, State Key Laboratory of Vascular Homeostasis and Remodeling, Health Science Center, Peking University, Beijing 100191, China
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Sarantides P, Raptis A, Mathioulakis D, Moulakakis K, Kakisis J, Manopoulos C. Computational Study of Abdominal Aortic Aneurysm Walls Accounting for Patient-Specific Non-Uniform Intraluminal Thrombus Thickness and Distinct Material Models: A Pre- and Post-Rupture Case. Bioengineering (Basel) 2024; 11:144. [PMID: 38391630 PMCID: PMC10886172 DOI: 10.3390/bioengineering11020144] [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: 11/30/2023] [Revised: 01/23/2024] [Accepted: 01/26/2024] [Indexed: 02/24/2024] Open
Abstract
An intraluminal thrombus (ILT) is present in the majority of abdominal aortic aneurysms, playing a crucial role in their growth and rupture. Although most computational studies do not include the ILT, in the present study, this is taken into account, laying out the whole simulation procedure, namely, from computed tomography scans to medical image segmentation, geometry reconstruction, mesh generation, biomaterial modeling, finite element analysis, and post-processing, all carried out in open software. By processing the tomography scans of a patient's aneurysm before and after rupture, digital twins are reconstructed assuming a uniform aortic wall thickness. The ILT and the aortic wall are assigned different biomaterial models; namely, the first is modeled as an isotropic linear elastic material, and the second is modeled as the Mooney-Rivlin hyperelastic material as well as the transversely isotropic hyperelastic Holzapfel-Gasser-Ogden nonlinear material. The implementation of the latter requires the designation of local Cartesian coordinate systems in the aortic wall, suitably oriented in space, for the proper orientation of the collagen fibers. The composite aneurysm geometries (ILT and aortic wall structures) are loaded with normal and hypertensive static intraluminal pressure. Based on the calculated stress and strain distributions, ILT seems to be protecting the aneurysm from a structural point of view, as the highest stresses appear in the thrombus-free areas of the aneurysmal wall.
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Affiliation(s)
- Platon Sarantides
- Laboratory of Biofluid Mechanics & Biomedical Technology, School of Mechanical Engineering, National Technical University of Athens, 157 72 Zografos, Greece
| | - Anastasios Raptis
- Laboratory of Biofluid Mechanics & Biomedical Technology, School of Mechanical Engineering, National Technical University of Athens, 157 72 Zografos, Greece
| | - Dimitrios Mathioulakis
- Laboratory of Biofluid Mechanics & Biomedical Technology, School of Mechanical Engineering, National Technical University of Athens, 157 72 Zografos, Greece
- School of Engineering, Bahrain Polytechnic, Isa Town P.O. Box 33349, Bahrain
| | - Konstantinos Moulakakis
- Department of Vascular Surgery, School of Medicine, University of Patras, 265 04 Patras, Greece
| | - John Kakisis
- Department of Vascular Surgery, Attikon University Hospital, National and Kapodistrian University of Athens, 106 79 Athens, Greece
| | - Christos Manopoulos
- Laboratory of Biofluid Mechanics & Biomedical Technology, School of Mechanical Engineering, National Technical University of Athens, 157 72 Zografos, Greece
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Halsey G, Zohora FT, Arora S, Zimmerman H, Vyavahare N. Pentagalloyl glucose induces anti-inflammatory macrophage polarization - suppressing macrophage mediated vascular cell dysfunction and TGF-β secretion. Int J Immunopathol Pharmacol 2024; 38:3946320241276894. [PMID: 39135409 PMCID: PMC11320691 DOI: 10.1177/03946320241276894] [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: 01/16/2024] [Accepted: 08/04/2024] [Indexed: 08/15/2024] Open
Abstract
Background: Pentagalloyl glucose (PGG) is a polyphenol with vasoprotective properties. Targeted delivery of PGG reversed aortic aneurysm growth in several rodent models associated with decreased number of macrophages and transforming growth factor-β (TGF-β) expression. Thus, we sought to determine cellular mechanisms by which PGG reduces macrophage-induced aortic pathogenicity and its relationship to TGF-β. Methods: Using THP-1 cells, primary human aortic cells, and explanted rat aortas, we assessed the anti-inflammatory effect of PGG. Expression of pro/anti-inflammatory macrophage markers was analyzed. Adhesion of monocytes as well as oxidative stress status, viability, and TGF-β expression after primary aortic cell exposure to macrophage-conditioned medium with and without PGG were assessed. The release of TGF-β was also examined in elastase-treated cultured rat aortas. Results: PGG pre-treatment of human aortic cell monolayers reduced the adhesion of THP-1 monocytes. PGG enhanced the expression of anti-inflammatory markers in THP-1-derived macrophages, and increased mitochondrial reactive oxygen species as well as mitochondrial polarization. Conditioned medium from THP-1-derived macrophages induced reactive oxygen species, cell death, and TGF-β release from human aortic cells, which was suppressed by PGG. In explanted rat aortas, PGG reduced elastase mediated TGF-β release. Conclusions: Combining anti-inflammatory, cytotoxic, and oxidative effects, PGG has high cardiovascular therapeutic potential. We confirmed previous in vivo observations whereby PGG suppressed TGF-β response associated with disease resolution.
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Affiliation(s)
- Gregory Halsey
- Department of Bioengineering, Clemson University, Clemson, SC, USA
| | | | - Shivani Arora
- Department of Bioengineering, Clemson University, Clemson, SC, USA
| | - Holly Zimmerman
- Department of Bioengineering, Clemson University, Clemson, SC, USA
| | - Naren Vyavahare
- Department of Bioengineering, Clemson University, Clemson, SC, USA
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Hu M, Meganathan I, Zhu J, MacArthur R, Kassiri Z. Loss of TIMP3, but not TIMP4, exacerbates thoracic and abdominal aortic aneurysm. J Mol Cell Cardiol 2023; 184:61-74. [PMID: 37844423 DOI: 10.1016/j.yjmcc.2023.10.001] [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: 02/13/2023] [Revised: 10/01/2023] [Accepted: 10/01/2023] [Indexed: 10/18/2023]
Abstract
AIMS Aorta exhibits regional heterogeneity (structural and functional), while different etiologies for thoracic and abdominal aortic aneurysm (TAA, AAA) are recognized. Tissue inhibitor of metalloproteinases (TIMPs) regulate vascular remodeling through different mechanisms. Region-dependent functions have been reported for TIMP3 and TIMP4 in vascular pathologies. We investigated the region-specific function of these TIMPs in development of TAA versus AAA. METHODS & RESULTS TAA or AAA was induced in male and female mice lacking TIMP3 (Timp3-/-), TIMP4 (Timp4-/-) or in wildtype (WT) mice by peri-adventitial elastase application. Loss of TIMP3 exacerbated TAA and AAA severity in males and females, with a greater increase in proteinase activity, smooth muscle cell phenotypic switching post-AAA and -TAA, while increased inflammation was detected in the media post-AAA, but in the adventitia post-TAA. Timp3-/- mice showed impaired intimal barrier integrity post-AAA, but a greater adventitial vasa-vasorum branching post-TAA, which could explain the site of inflammation in AAA versus TAA. Severity of TAA and AAA in Timp4-/- mice was similar to WT mice. In vitro, Timp3 knockdown more severely compromised the permeability of human aortic EC monolayer compared to Timp4 knockdown or the control group. In aneurysmal aorta specimens from patients, TIMP3 expression decreased in the media in AAA, and in adventitial in TAA specimens, consistent with the impact of its loss in AAA versus TAA in mice. CONCLUSION TIMP3 loss exacerbates inflammation, adverse remodeling and aortic dilation, but triggers different patterns of remodeling in AAA versus TAA, and through different mechanisms.
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Affiliation(s)
- Mei Hu
- Department of Physiology, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada
| | - Ilamaran Meganathan
- Department of Physiology, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada
| | - Jiechun Zhu
- Department of Physiology, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada
| | - Rodrick MacArthur
- Department of Cardiac surgery, Mazankowski Alberta Heart Institute, University of Alberta Hospital, Edmonton, AB, Canada
| | - Zamaneh Kassiri
- Department of Physiology, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada.
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Yang K, Cui S, Wang J, Xu T, Du H, Yue H, Ye H, Guo J, Zhang J, Li P, Guo Y, Pan C, Pang J, Wang J, Yu X, Zhang C, Liu Z, Chen Y, Xu F. Early Progression of Abdominal Aortic Aneurysm is Decelerated by Improved Endothelial Barrier Function via ALDH2-LIN28B-ELK3 Signaling. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2302231. [PMID: 37822152 PMCID: PMC10646281 DOI: 10.1002/advs.202302231] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Revised: 08/25/2023] [Indexed: 10/13/2023]
Abstract
The involvement of endothelial barrier function in abdominal aortic aneurysm (AAA) and its upstream regulators remains unknown. Single-cell RNA sequencing shows that disrupted endothelial focal junction is an early (3 days) and persistent (28 days) event during Angiotensin II (Ang II)-induced AAA progression. Consistently, mRNA sequencing on human aortic dissection tissues confirmed downregulated expression of endothelial barrier-related genes. Aldehyde dehydrogenase 2 (ALDH2), a negative regulator of AAA, is found to be upregulated in the intimal media of AAA samples, leading to testing its role in early-stage AAA. ALDH2 knockdown/knockout specifically in endothelial cells (ECs) significantly increases expression of EC barrier markers related to focal adhesion and tight junction, restores endothelial barrier integrity, and suppresses early aortic dilation of AAA (7 and 14 days post-Ang II). Mechanically, ELK3 acts as an ALDH2 downstream regulator for endothelial barrier function preservation. At the molecular level, ALDH2 directly binds to LIN28B, a regulator of ELK3 mRNA stability, hindering LIN28B binding to ELK3 mRNA, thereby depressing ELK3 expression and impairing endothelial barrier function. Therefore, preserving vascular endothelial barrier integrity via ALDH2-specific knockdown in ECs holds therapeutic potential in the early management of AAAs.
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Hasan M, Al-Thani H, El-Menyar A, Zeidan A, Al-Thani A, Yalcin HC. Disturbed hemodynamics and oxidative stress interaction in endothelial dysfunction and AAA progression: Focus on Nrf2 pathway. Int J Cardiol 2023; 389:131238. [PMID: 37536420 DOI: 10.1016/j.ijcard.2023.131238] [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: 02/03/2023] [Revised: 04/30/2023] [Accepted: 07/31/2023] [Indexed: 08/05/2023]
Abstract
Hemodynamic shear stress is one of the major factors that are involved in the pathogenesis of many cardiovascular diseases including atherosclerosis and abdominal aortic aneurysm (AAA), through its modulatory effect on the endothelial cell's redox homeostasis and mechanosensitive gene expression. Among important mechanisms, oxidative stress, endoplasmic reticulum stress activation, and the subsequent endothelial dysfunction are attributed to disturbed blood flow and low shear stress in the vascular curvature and bifurcations which are considered atheroprone regions and aneurysm occurrence spots. Many pathways were shown to be involved in AAA progression. Of particular interest from recent findings is, the (Nrf2)/Keap-1 pathway, where Nrf2 is a transcription factor that has antioxidant properties and is strongly associated with several CVDs, yet, the exact mechanism by which Nrf2 alleviates CVDs still to be elucidated. Nrf2 expression is closely affected by shear stress and was shown to participate in AAA. In the current review paper, we discussed the link between disturbed hemodynamics and its effect on Nrf2 as a mechanosensitive gene and its role in the development of endothelial dysfunction which is linked to the progression of AAA.
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Affiliation(s)
- Maram Hasan
- Biomedical Research Center, Qatar University, P.O. Box 2713, Doha, Qatar
| | - Hassan Al-Thani
- Department of Surgery, Trauma and Vascular Surgery, Hamad General Hospital, Hamad Medical Corporation, P.O. Box 3050, Doha, Qatar
| | - Ayman El-Menyar
- Department of Surgery, Trauma and Vascular Surgery, Hamad General Hospital, Hamad Medical Corporation, P.O. Box 3050, Doha, Qatar; Clinical Medicine, Weill Cornell Medical College, Doha, Qatar
| | - Asad Zeidan
- Department of Basic Sciences, College of Medicine, QU health, Qatar University, P.O. Box 2713, Doha, Qatar
| | - Asmaa Al-Thani
- Biomedical Research Center, Qatar University, P.O. Box 2713, Doha, Qatar; Department of Biomedical Science, College of Health Sciences, QU Health, Qatar University, P.O. Box 2713, Doha, Qatar
| | - Huseyin C Yalcin
- Biomedical Research Center, Qatar University, P.O. Box 2713, Doha, Qatar.
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Stougiannou TM, Christodoulou KC, Georgakarakos E, Mikroulis D, Karangelis D. Promising Novel Therapies in the Treatment of Aortic and Visceral Aneurysms. J Clin Med 2023; 12:5878. [PMID: 37762818 PMCID: PMC10531975 DOI: 10.3390/jcm12185878] [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: 07/19/2023] [Revised: 09/06/2023] [Accepted: 09/08/2023] [Indexed: 09/29/2023] Open
Abstract
Aortic and visceral aneurysms affect large arterial vessels, including the thoracic and abdominal aorta, as well as visceral arterial branches, such as the splenic, hepatic, and mesenteric arteries, respectively. Although these clinical entities have not been equally researched, it seems that they might share certain common pathophysiological changes and molecular mechanisms. The yet limited published data, with regard to newly designed, novel therapies, could serve as a nidus for the evaluation and potential implementation of such treatments in large artery aneurysms. In both animal models and clinical trials, various novel treatments have been employed in an attempt to not only reduce the complications of the already implemented modalities, through manufacturing of more durable materials, but also to regenerate or replace affected tissues themselves. Cellular populations like stem and differentiated vascular cell types, large diameter tissue-engineered vascular grafts (TEVGs), and various molecules and biological factors that might target aspects of the pathophysiological process, including cell-adhesion stabilizers, metalloproteinase inhibitors, and miRNAs, could potentially contribute significantly to the treatment of these types of aneurysms. In this narrative review, we sought to collect and present relevant evidence in the literature, in an effort to unveil promising biological therapies, possibly applicable to the treatment of aortic aneurysms, both thoracic and abdominal, as well as visceral aneurysms.
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Affiliation(s)
- Theodora M. Stougiannou
- Department of Cardiothoracic Surgery, University General Hospital of Alexandroupolis, Dragana, 68100 Alexandroupolis, Greece; (K.C.C.); (E.G.); (D.M.); (D.K.)
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Doherty EL, Aw WY, Warren EC, Hockenberry M, Whitworth CP, Krohn G, Howell S, Diekman BO, Legant WR, Nia HT, Hickey AJ, Polacheck WJ. Patient-derived extracellular matrix demonstrates role of COL3A1 in blood vessel mechanics. Acta Biomater 2023; 166:346-359. [PMID: 37187299 PMCID: PMC10330735 DOI: 10.1016/j.actbio.2023.05.015] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 05/05/2023] [Accepted: 05/09/2023] [Indexed: 05/17/2023]
Abstract
Vascular Ehlers-Danlos Syndrome (vEDS) is a rare autosomal dominant disease caused by mutations in the COL3A1 gene, which renders patients susceptible to aneurysm and arterial dissection and rupture. To determine the role of COL3A1 variants in the biochemical and biophysical properties of human arterial ECM, we developed a method for synthesizing ECM directly from vEDS donor fibroblasts. We found that the protein content of the ECM generated from vEDS donor fibroblasts differed significantly from ECM from healthy donors, including upregulation of collagen subtypes and other proteins related to ECM structural integrity. We further found that ECM generated from a donor with a glycine substitution mutation was characterized by increased glycosaminoglycan content and unique viscoelastic mechanical properties, including increased time constant for stress relaxation, resulting in a decrease in migratory speed of human aortic endothelial cells when seeded on the ECM. Collectively, these results demonstrate that vEDS patient-derived fibroblasts harboring COL3A1 mutations synthesize ECM that differs in composition, structure, and mechanical properties from healthy donors. These results further suggest that ECM mechanical properties could serve as a prognostic indicator for patients with vEDS, and the insights provided by the approach demonstrate the broader utility of cell-derived ECM in disease modeling. STATEMENT OF SIGNIFICANCE: The role of collagen III ECM mechanics remains unclear, despite reported roles in diseases including fibrosis and cancer. Here, we generate fibrous, collagen-rich ECM from primary donor cells from patients with vascular Ehlers-Danlos syndrome (vEDS), a disease caused by mutations in the gene that encodes collagen III. We observe that ECM grown from vEDS patients is characterized by unique mechanical signatures, including altered viscoelastic properties. By quantifying the structural, biochemical, and mechanical properties of patient-derived ECM, we identify potential drug targets for vEDS, while defining a role for collagen III in ECM mechanics more broadly. Furthermore, the structure/function relationships of collagen III in ECM assembly and mechanics will inform the design of substrates for tissue engineering and regenerative medicine.
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Affiliation(s)
- Elizabeth L Doherty
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Chapel Hill and Raleigh, NC, USA; UNC Catalyst for Rare Diseases, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Wen Yih Aw
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Chapel Hill and Raleigh, NC, USA; UNC Catalyst for Rare Diseases, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Emily C Warren
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Chapel Hill and Raleigh, NC, USA
| | - Max Hockenberry
- Department of Cell Biology and Physiology, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC, USA; Department of Pharmacology, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC, USA
| | - Chloe P Whitworth
- Department of Genetics, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC, USA
| | - Grace Krohn
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Chapel Hill and Raleigh, NC, USA
| | - Stefanie Howell
- UNC Catalyst for Rare Diseases, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Brian O Diekman
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Chapel Hill and Raleigh, NC, USA
| | - Wesley R Legant
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Chapel Hill and Raleigh, NC, USA; Department of Pharmacology, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC, USA
| | - Hadi Tavakoli Nia
- Department of Biomedical Engineering, Boston University, Boston, MA, USA
| | - Anthony J Hickey
- UNC Catalyst for Rare Diseases, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - William J Polacheck
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Chapel Hill and Raleigh, NC, USA; Department of Cell Biology and Physiology, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC, USA; McAllister Heart Institute, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.
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12
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Hofmann A, Khorzom Y, Klimova A, Wolk S, Busch A, Sabarstinski P, Müglich M, Egorov D, Kopaliani I, Poitz DM, Kapalla M, Hamann B, Frank F, Jänichen C, Brunssen C, Morawietz H, Reeps C. Associations of Tissue and Soluble LOX-1 with Human Abdominal Aortic Aneurysm. J Am Heart Assoc 2023:e027537. [PMID: 37421287 PMCID: PMC10382096 DOI: 10.1161/jaha.122.027537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Accepted: 05/04/2023] [Indexed: 07/10/2023]
Abstract
Background Indication for prophylactic surgical abdominal aortic aneurysm (AAA) repair depends on the maximal aortic diameter. The lectin-like oxidized low-density lipoprotein receptor-1 (LOX-1) is the major receptor for uptake of oxidized low-density lipoprotein cholesterol and is implicated in atherosclerosis. A soluble form of LOX-1 (sLOX-1) has been discussed as a novel biomarker in coronary artery disease and stroke. Herein, we assessed the regulation of aortic LOX-1 as well as the diagnostic and risk stratification potential of sLOX-1 in patients with AAA. Methods and Results Serum sLOX-1 was assessed in a case-control study in AAA (n=104) and peripheral artery disease (n=104). sLOX-1 was not statistically different between AAA and peripheral artery disease but was higher in AAA (β=1.28, P=0.04) after adjusting for age, atherosclerosis, type 2 diabetes, prescription of statins, β-blockers, ACE inhibitors, and therapeutic anticoagulation. sLOX-1 was not associated with the aortic diameter, AAA volume, or the thickness of the intraluminal thrombus. Aortic LOX-1 mRNA expression tended to be higher in AAA when compared with disease, and expression was positively associated with cleaved caspase-3, smooth muscle actin, collagen, and macrophage content. Conclusions In AAA, sLOX-1 was differently affected by age, cardiometabolic diseases, and corresponding medical therapies. Comparison with nonatherosclerotic disease would be beneficial to further elucidate the diagnostic potential of sLOX-1, although it was not useful for risk stratification. Aneurysmal LOX-1 mRNA expression was increased and positively associated with smooth muscle cells and collagen content, suggesting that LOX-1 is eventually not deleterious in human AAA and could counteract AAA rupture.
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Affiliation(s)
- Anja Hofmann
- Division of Vascular and Endovascular Surgery, Department of Visceral, Thoracic and Vascular Surgery Faculty of Medicine andUniversity Hospital Carl Gustav Carus, Technische Universität Dresden Dresden Germany
| | - Yazan Khorzom
- Division of Vascular and Endovascular Surgery, Department of Visceral, Thoracic and Vascular Surgery Faculty of Medicine andUniversity Hospital Carl Gustav Carus, Technische Universität Dresden Dresden Germany
| | - Anna Klimova
- National Center for Tumor Diseases, Partner Site Dresden and Institute for Medical Informatics and Biometry, Faculty of Medicine Technische Universität Dresden Dresden Germany
| | - Steffen Wolk
- Division of Vascular and Endovascular Surgery, Department of Visceral, Thoracic and Vascular Surgery Faculty of Medicine andUniversity Hospital Carl Gustav Carus, Technische Universität Dresden Dresden Germany
| | - Albert Busch
- Division of Vascular and Endovascular Surgery, Department of Visceral, Thoracic and Vascular Surgery Faculty of Medicine andUniversity Hospital Carl Gustav Carus, Technische Universität Dresden Dresden Germany
| | - Pamela Sabarstinski
- Division of Vascular and Endovascular Surgery, Department of Visceral, Thoracic and Vascular Surgery Faculty of Medicine andUniversity Hospital Carl Gustav Carus, Technische Universität Dresden Dresden Germany
| | - Margarete Müglich
- Division of Vascular and Endovascular Surgery, Department of Visceral, Thoracic and Vascular Surgery Faculty of Medicine andUniversity Hospital Carl Gustav Carus, Technische Universität Dresden Dresden Germany
| | - Dmitry Egorov
- Department of Physiology, Medical Faculty Carl Gustav Carus Technische Universität Dresden Germany
| | - Irakli Kopaliani
- Department of Physiology, Medical Faculty Carl Gustav Carus Technische Universität Dresden Germany
| | - David M Poitz
- Institute of Clinical Chemistry and Laboratory Medicine Medical Faculty Carl Gustav Carus, Technische Universität Dresden Dresden Germany
| | - Marvin Kapalla
- Division of Vascular and Endovascular Surgery, Department of Visceral, Thoracic and Vascular Surgery Faculty of Medicine andUniversity Hospital Carl Gustav Carus, Technische Universität Dresden Dresden Germany
| | - Bianca Hamann
- Division of Vascular and Endovascular Surgery, Department of Visceral, Thoracic and Vascular Surgery Faculty of Medicine andUniversity Hospital Carl Gustav Carus, Technische Universität Dresden Dresden Germany
| | - Frieda Frank
- Division of Vascular and Endovascular Surgery, Department of Visceral, Thoracic and Vascular Surgery Faculty of Medicine andUniversity Hospital Carl Gustav Carus, Technische Universität Dresden Dresden Germany
| | - Christian Jänichen
- Division of Vascular and Endovascular Surgery, Department of Visceral, Thoracic and Vascular Surgery Faculty of Medicine andUniversity Hospital Carl Gustav Carus, Technische Universität Dresden Dresden Germany
| | - Coy Brunssen
- Division of Vascular Endothelium and Microcirculation, Department of Medicine III Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden Dresden Germany
| | - Henning Morawietz
- Division of Vascular Endothelium and Microcirculation, Department of Medicine III Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden Dresden Germany
| | - Christian Reeps
- Division of Vascular and Endovascular Surgery, Department of Visceral, Thoracic and Vascular Surgery Faculty of Medicine andUniversity Hospital Carl Gustav Carus, Technische Universität Dresden Dresden Germany
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13
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Winter H, Winski G, Busch A, Chernogubova E, Fasolo F, Wu Z, Bäcklund A, Khomtchouk BB, Van Booven DJ, Sachs N, Eckstein HH, Wittig I, Boon RA, Jin H, Maegdefessel L. Targeting long non-coding RNA NUDT6 enhances smooth muscle cell survival and limits vascular disease progression. Mol Ther 2023; 31:1775-1790. [PMID: 37147804 PMCID: PMC10277891 DOI: 10.1016/j.ymthe.2023.04.020] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 03/31/2023] [Accepted: 04/28/2023] [Indexed: 05/07/2023] Open
Abstract
Long non-coding RNAs (lncRNAs) orchestrate various biological processes and regulate the development of cardiovascular diseases. Their potential therapeutic benefit to tackle disease progression has recently been extensively explored. Our study investigates the role of lncRNA Nudix Hydrolase 6 (NUDT6) and its antisense target fibroblast growth factor 2 (FGF2) in two vascular pathologies: abdominal aortic aneurysms (AAA) and carotid artery disease. Using tissue samples from both diseases, we detected a substantial increase of NUDT6, whereas FGF2 was downregulated. Targeting Nudt6 in vivo with antisense oligonucleotides in three murine and one porcine animal model of carotid artery disease and AAA limited disease progression. Restoration of FGF2 upon Nudt6 knockdown improved vessel wall morphology and fibrous cap stability. Overexpression of NUDT6 in vitro impaired smooth muscle cell (SMC) migration, while limiting their proliferation and augmenting apoptosis. By employing RNA pulldown followed by mass spectrometry as well as RNA immunoprecipitation, we identified Cysteine and Glycine Rich Protein 1 (CSRP1) as another direct NUDT6 interaction partner, regulating cell motility and SMC differentiation. Overall, the present study identifies NUDT6 as a well-conserved antisense transcript of FGF2. NUDT6 silencing triggers SMC survival and migration and could serve as a novel RNA-based therapeutic strategy in vascular diseases.
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Affiliation(s)
- Hanna Winter
- Department for Vascular and Endovascular Surgery, Klinikum rechts der Isar, Technical University, Munich, Germany; German Center for Cardiovascular Research (DZHK), partner site Munich Heart Alliance, Berlin, Germany
| | - Greg Winski
- Department of Medicine, Karolinska Institutet, Stockholm, Sweden; Function Perioperative Medicine and Intensive Care, Karolinska University Hospital, Stockholm, Sweden
| | - Albert Busch
- Department for Vascular and Endovascular Surgery, Klinikum rechts der Isar, Technical University, Munich, Germany; Division of Vascular and Endovascular Surgery, Department of Visceral, Thoracic and Vascular Surgery, Medical Faculty, Carl Gustav Carus and University Hospital Carl Gustav Carus Dresden, Technische Universität Dresden, Dresden, Germany
| | | | - Francesca Fasolo
- Department for Vascular and Endovascular Surgery, Klinikum rechts der Isar, Technical University, Munich, Germany; German Center for Cardiovascular Research (DZHK), partner site Munich Heart Alliance, Berlin, Germany
| | - Zhiyuan Wu
- Department for Vascular and Endovascular Surgery, Klinikum rechts der Isar, Technical University, Munich, Germany; German Center for Cardiovascular Research (DZHK), partner site Munich Heart Alliance, Berlin, Germany
| | | | - Bohdan B Khomtchouk
- Department of BioHealth Informatics, Indiana University, Indianapolis, IN, USA; Krannert Cardiovascular Research Center, Indiana University School of Medicine, Indianapolis, IN, USA; Center for Computational Biology & Bioinformatics, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Derek J Van Booven
- John P. Hussman Institute for Human Genomics, Miller School of Medicine, University of Miami, Miami, FL, USA
| | - Nadja Sachs
- Department for Vascular and Endovascular Surgery, Klinikum rechts der Isar, Technical University, Munich, Germany; German Center for Cardiovascular Research (DZHK), partner site Munich Heart Alliance, Berlin, Germany
| | - Hans-Henning Eckstein
- Department for Vascular and Endovascular Surgery, Klinikum rechts der Isar, Technical University, Munich, Germany; German Center for Cardiovascular Research (DZHK), partner site Munich Heart Alliance, Berlin, Germany
| | - Ilka Wittig
- Functional Proteomics, Institute of Cardiovascular Physiology, Goethe University, 60590 Frankfurt am Main, Germany; German Center for Cardiovascular Research DZHK, Partner Site Frankfurt Rhine-Main, 60590 Frankfurt am Main, Germany
| | - Reinier A Boon
- German Center for Cardiovascular Research DZHK, Partner Site Frankfurt Rhine-Main, 60590 Frankfurt am Main, Germany; Institute of Cardiovascular Regeneration, Goethe University, 60590 Frankfurt am Main, Germany; Amsterdam UMC location Vrije Universiteit Amsterdam, Physiology, 1081 Amsterdam, the Netherlands; Amsterdam Cardiovascular Sciences, Microcirculation, 1105 Amsterdam, the Netherlands
| | - Hong Jin
- Department of Medicine, Karolinska Institutet, Stockholm, Sweden; Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | - Lars Maegdefessel
- Department for Vascular and Endovascular Surgery, Klinikum rechts der Isar, Technical University, Munich, Germany; German Center for Cardiovascular Research (DZHK), partner site Munich Heart Alliance, Berlin, Germany; Department of Medicine, Karolinska Institutet, Stockholm, Sweden.
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14
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Arslan AC, Salman HE. Effect of Intraluminal Thrombus Burden on the Risk of Abdominal Aortic Aneurysm Rupture. J Cardiovasc Dev Dis 2023; 10:233. [PMID: 37367398 DOI: 10.3390/jcdd10060233] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 05/19/2023] [Accepted: 05/23/2023] [Indexed: 06/28/2023] Open
Abstract
Abdominal aortic aneurysm (AAA) is a critical health disorder, where the abdominal aorta dilates more than 50% of its normal diameter. Enlargement in abdominal aorta alters the hemodynamics and flow-induced forces on the AAA wall. Depending on the flow conditions, the hemodynamic forces on the wall may result in excessive mechanical stresses that lead to AAA rupture. The risk of rupture can be predicted using advanced computational techniques such as computational fluid dynamics (CFD) and fluid-structure interaction (FSI). For a reliable rupture risk assessment, formation of intraluminal thrombus (ILT) and uncertainty in arterial material properties should be taken into account, mainly due to the patient-specific differences and unknowns in AAAs. In this study, AAA models are computationally investigated by performing CFD simulations combined with FSI analysis. Various levels of ILT burdens are artificially generated in a realistic AAA geometry, and the peak effective stresses are evaluated to elucidate the effect of material models and ILT formation. The results indicate that increasing the ILT burden leads to lowered effective stresses on the AAA wall. The material properties of the artery and ILT are also effective on the stresses; however, these effects are limited compared to the effect of ILT volume in the AAA sac.
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Affiliation(s)
- Aykut Can Arslan
- Department of Mechanical Engineering, TOBB University of Economics and Technology, Ankara 06530, Turkey
| | - Huseyin Enes Salman
- Department of Mechanical Engineering, TOBB University of Economics and Technology, Ankara 06530, Turkey
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15
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Luo S, Kong C, Zhao S, Tang X, Wang Y, Zhou X, Li R, Liu X, Tang X, Sun S, Xie W, Zhang ZR, Jing Q, Gu A, Chen F, Wang D, Wang H, Han Y, Xie L, Ji Y. Endothelial HDAC1-ZEB2-NuRD Complex Drives Aortic Aneurysm and Dissection Through Regulation of Protein S-Sulfhydration. Circulation 2023; 147:1382-1403. [PMID: 36951067 DOI: 10.1161/circulationaha.122.062743] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Accepted: 03/02/2023] [Indexed: 03/24/2023]
Abstract
BACKGROUND Aortic aneurysm and aortic dissection (AAD) are life-threatening vascular diseases, with endothelium being the primary target for AAD treatment. Protein S-sulfhydration is a newly discovered posttranslational modification whose role in AAD has not yet been defined. This study aims to investigate whether protein S-sulfhydration in the endothelium regulates AAD and its underlying mechanism. METHODS Protein S-sulfhydration in endothelial cells (ECs) during AAD was detected and hub genes regulating homeostasis of the endothelium were identified. Clinical data of patients with AAD and healthy controls were collected, and the level of the cystathionine γ lyase (CSE)/hydrogen sulfide (H2S) system in plasma and aortic tissue were determined. Mice with EC-specific CSE deletion or overexpression were generated, and the progression of AAD was determined. Unbiased proteomics and coimmunoprecipitation combined with mass spectrometry analysis were conducted to determine the upstream regulators of the CSE/H2S system and the findings were confirmed in transgenic mice. RESULTS Higher plasma H2S levels were associated with a lower risk of AAD, after adjustment for common risk factors. CSE was reduced in the endothelium of AAD mouse and aorta of patients with AAD. Protein S-sulfhydration was reduced in the endothelium during AAD and protein disulfide isomerase (PDI) was the main target. S-sulfhydration of PDI at Cys343 and Cys400 enhanced PDI activity and mitigated endoplasmic reticulum stress. EC-specific CSE deletion was exacerbated, and EC-specific overexpression of CSE alleviated the progression of AAD through regulating the S-sulfhydration of PDI. ZEB2 (zinc finger E-box binding homeobox 2) recruited the HDAC1-NuRD complex (histone deacetylase 1-nucleosome remodeling and deacetylase) to repress the transcription of CTH, the gene encoding CSE, and inhibited PDI S-sulfhydration. EC-specific HDAC1 deletion increased PDI S-sulfhydration and alleviated AAD. Increasing PDI S-sulfhydration with the H2S donor GYY4137 or pharmacologically inhibiting HDAC1 activity with entinostat alleviated the progression of AAD. CONCLUSIONS Decreased plasma H2S levels are associated with an increased risk of aortic dissection. The endothelial ZEB2-HDAC1-NuRD complex transcriptionally represses CTH, impairs PDI S-sulfhydration, and drives AAD. The regulation of this pathway effectively prevents AAD progression.
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Affiliation(s)
- Shanshan Luo
- Key Laboratory of Cardiovascular and Cerebrovascular Medicine, Key Laboratory of Targeted Intervention of Cardiovascular Disease, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, the Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School (S.L., C.K., S.Z., Xin Tang, Y.W., X.Z., R.L., X.L., S.S., A.G., L.X., Y.J.), Nanjing Medical University, China
| | - Chuiyu Kong
- Key Laboratory of Cardiovascular and Cerebrovascular Medicine, Key Laboratory of Targeted Intervention of Cardiovascular Disease, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, the Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School (S.L., C.K., S.Z., Xin Tang, Y.W., X.Z., R.L., X.L., S.S., A.G., L.X., Y.J.), Nanjing Medical University, China
| | - Shuang Zhao
- Key Laboratory of Cardiovascular and Cerebrovascular Medicine, Key Laboratory of Targeted Intervention of Cardiovascular Disease, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, the Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School (S.L., C.K., S.Z., Xin Tang, Y.W., X.Z., R.L., X.L., S.S., A.G., L.X., Y.J.), Nanjing Medical University, China
| | - Xin Tang
- Key Laboratory of Cardiovascular and Cerebrovascular Medicine, Key Laboratory of Targeted Intervention of Cardiovascular Disease, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, the Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School (S.L., C.K., S.Z., Xin Tang, Y.W., X.Z., R.L., X.L., S.S., A.G., L.X., Y.J.), Nanjing Medical University, China
| | - Yu Wang
- Key Laboratory of Cardiovascular and Cerebrovascular Medicine, Key Laboratory of Targeted Intervention of Cardiovascular Disease, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, the Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School (S.L., C.K., S.Z., Xin Tang, Y.W., X.Z., R.L., X.L., S.S., A.G., L.X., Y.J.), Nanjing Medical University, China
| | - Xuechun Zhou
- Key Laboratory of Cardiovascular and Cerebrovascular Medicine, Key Laboratory of Targeted Intervention of Cardiovascular Disease, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, the Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School (S.L., C.K., S.Z., Xin Tang, Y.W., X.Z., R.L., X.L., S.S., A.G., L.X., Y.J.), Nanjing Medical University, China
| | - Rui Li
- Key Laboratory of Cardiovascular and Cerebrovascular Medicine, Key Laboratory of Targeted Intervention of Cardiovascular Disease, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, the Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School (S.L., C.K., S.Z., Xin Tang, Y.W., X.Z., R.L., X.L., S.S., A.G., L.X., Y.J.), Nanjing Medical University, China
| | - Xingeng Liu
- Key Laboratory of Cardiovascular and Cerebrovascular Medicine, Key Laboratory of Targeted Intervention of Cardiovascular Disease, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, the Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School (S.L., C.K., S.Z., Xin Tang, Y.W., X.Z., R.L., X.L., S.S., A.G., L.X., Y.J.), Nanjing Medical University, China
| | - Xinlong Tang
- Department of Thoracic and Cardiovascular Surgery, the Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing Drum Tower Hospital Clinical College of Nanjing Medical University, Institute of Cardiothoracic Vascular Disease, Nanjing University, China (Xinlong Tang, W.X., D.W.)
| | - Shixiu Sun
- Key Laboratory of Cardiovascular and Cerebrovascular Medicine, Key Laboratory of Targeted Intervention of Cardiovascular Disease, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, the Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School (S.L., C.K., S.Z., Xin Tang, Y.W., X.Z., R.L., X.L., S.S., A.G., L.X., Y.J.), Nanjing Medical University, China
| | - Wei Xie
- Department of Thoracic and Cardiovascular Surgery, the Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing Drum Tower Hospital Clinical College of Nanjing Medical University, Institute of Cardiothoracic Vascular Disease, Nanjing University, China (Xinlong Tang, W.X., D.W.)
| | - Zhi-Ren Zhang
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China), College of Pharmacy, Key Laboratory of Cardiovascular Medicine Research and Key Laboratory of Myocardial Ischemia, Chinese Ministry of Education, Harbin Medical University, Heilongjiang, China (Z.-R.Z., Y.J.)
- NHC Key Laboratory of Cell Transplantation, the Central Laboratory of the First Affiliated Hospital, Harbin Medical University, Heilongjiang, China (Z.-R.Z., Y.J.)
| | - Qing Jing
- CAS Key Laboratory of Tissue Microenvironment and Tumor, Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, China (Q.J.)
| | - Aihua Gu
- Key Laboratory of Cardiovascular and Cerebrovascular Medicine, Key Laboratory of Targeted Intervention of Cardiovascular Disease, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, the Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School (S.L., C.K., S.Z., Xin Tang, Y.W., X.Z., R.L., X.L., S.S., A.G., L.X., Y.J.), Nanjing Medical University, China
| | - Feng Chen
- Department of Forensic Medicine (F.C.), Nanjing Medical University, China
| | - Dongjin Wang
- Department of Thoracic and Cardiovascular Surgery, the Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing Drum Tower Hospital Clinical College of Nanjing Medical University, Institute of Cardiothoracic Vascular Disease, Nanjing University, China (Xinlong Tang, W.X., D.W.)
| | - Hong Wang
- Center for Metabolic Disease Research, Department of Microbiology and Immunology, Temple University Lewis Katz School of Medicine, Philadelphia, PA (H.W.)
| | - Yi Han
- Department of Geriatrics, First Affiliated Hospital of Nanjing Medical University, China (Y.H.)
| | - Liping Xie
- Key Laboratory of Cardiovascular and Cerebrovascular Medicine, Key Laboratory of Targeted Intervention of Cardiovascular Disease, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, the Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School (S.L., C.K., S.Z., Xin Tang, Y.W., X.Z., R.L., X.L., S.S., A.G., L.X., Y.J.), Nanjing Medical University, China
| | - Yong Ji
- Key Laboratory of Cardiovascular and Cerebrovascular Medicine, Key Laboratory of Targeted Intervention of Cardiovascular Disease, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, the Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School (S.L., C.K., S.Z., Xin Tang, Y.W., X.Z., R.L., X.L., S.S., A.G., L.X., Y.J.), Nanjing Medical University, China
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China), College of Pharmacy, Key Laboratory of Cardiovascular Medicine Research and Key Laboratory of Myocardial Ischemia, Chinese Ministry of Education, Harbin Medical University, Heilongjiang, China (Z.-R.Z., Y.J.)
- NHC Key Laboratory of Cell Transplantation, the Central Laboratory of the First Affiliated Hospital, Harbin Medical University, Heilongjiang, China (Z.-R.Z., Y.J.)
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16
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Abstract
ABSTRACT The incidence of abdominal aortic aneurysm (AAA) in the elderly is increasing year by year with high mortality. Current treatment is mainly through surgery or endovascular intervention, which is not sufficient to reduce future risk. Therefore, we still need to find an effective conservative measure as an adjunct therapy or early intervention to prevent AAA progression. Traditional therapeutic agents, such as β-receptor blockers, calcium channel blockers, and statins, have been shown to have limited effects on the growth of AAA. Recently, sodium-glucose cotransport proteins inhibitors (SGLT2is), a new class hypoglycemic drug, have shown outstanding beneficiary effects on cardiovascular diseases by plasma volume reduction, vascular tone regulation, and various unidentified mechanisms. It has been demonstrated that SGLT2i is abundantly expressed in the aorta, and some studies also showed promising results of SGLT2i in treating animal AAA models. This article aims to summarize the recent progress of AAA studies and look forward to the application of SGLT2i in AAA treatment for early intervention or adjunct therapy after surgical repair or stent graft.
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Affiliation(s)
- Zhongtiao Jin
- Master of Medicine, Department of Endocrinology, Renmin Hospital of Wuhan University, 430060, China; and
| | - Hongping Deng
- Department of Vascular Surgery, Renmin Hospital of Wuhan University, 430060, China.
| | - Sizheng Xiong
- Department of Vascular Surgery, Renmin Hospital of Wuhan University, 430060, China.
| | - Ling Gao
- Master of Medicine, Department of Endocrinology, Renmin Hospital of Wuhan University, 430060, China; and
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17
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Xu Y, Yang S, Xue G. The role of long non-coding RNA in abdominal aortic aneurysm. Front Genet 2023; 14:1153899. [PMID: 37007957 PMCID: PMC10050724 DOI: 10.3389/fgene.2023.1153899] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Accepted: 02/28/2023] [Indexed: 03/17/2023] Open
Abstract
The abdominal aortic aneurysm (AAA) is characterized by segmental expansion of the abdominal aorta and a high mortality rate. The characteristics of AAA suggest that apoptosis of smooth muscle cells, the production of reactive oxygen species, and inflammation are potential pathways for the formation and development of AAA. Long non-coding RNA (lncRNA) is becoming a new and essential regulator of gene expression. Researchers and physicians are focusing on these lncRNAs to use them as clinical biomarkers and new treatment targets for AAAs. LncRNA studies are beginning to emerge, suggesting that they may play a significant but yet unidentified role in vascular physiology and disease. This review examines the role of lncRNA and their target genes in AAA to increase our understanding of the disease’s onset and progression, which is crucial for developing potential AAA therapies.
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Grønbæk SK, Høgh J, Knudsen AD, Pham MHC, Sigvardsen PE, Fuchs A, Kühl JT, Køber L, Gerstoft J, Benfield T, Ostrowski SR, Kofoed KF, Nielsen SD. Aortic aneurysms and markers of platelet activation, hemostasis, and endothelial disruption in people living with HIV. Front Immunol 2023; 14:1115894. [PMID: 36817421 PMCID: PMC9933775 DOI: 10.3389/fimmu.2023.1115894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Accepted: 01/23/2023] [Indexed: 02/05/2023] Open
Abstract
Introduction People living with HIV (PLWH) are at twice the risk of developing cardiovascular diseases and have more than four times higher odds of aortic aneurysm (AA) than the uninfected population. However, biomarkers of AA in PLWH are yet to be discovered. We aimed to investigate whether circulating biomarkers reflecting platelet activation, hemostasis and endothelial disruption, i.e. sCD40L, D-dimer, syndecan-1, and thrombomodulin, were associated with AA in PLWH. Methods Five hundred seventy one PLWH from the Copenhagen Comorbidity in HIV Infection (COCOMO) study ≥40 years of age with an available contrast-enhanced CT scan as well as available biomarker analyses were included. The biomarkers were analyzed on thawed plasma. For each biomarker, we defined high level as a concentration in the upper quartile and low level as a concentration below the upper quartile. For D-dimer, the cut-off was defined as the lower limit of detection. Using unadjusted and adjusted logistic and linear regression models, we analyzed associations between AA and sCD40L, D-dimer, syndecan-1, and thrombomodulin, respectively in PLWH. Results PLWH had median (IQR) age 52 years (47-60), 88% were male, median (IQR) time since HIV diagnosis was 15 years (8-23), and 565 (99%) were currently on antiretroviral treatment. High level of sCD40L was associated with lower odds of AA in both unadjusted (odds ratio, OR, 0.23 (95% CI 0.07-0.77; P=0.017)) and adjusted models (adjusted OR, aOR, 0.23 (95% CI 0.07-0.78; P=0.019)). Detectable level of D-dimer was associated with higher odds of AA in both unadjusted (OR 2.76 (95% CI 1.34-5.67; P=0.006)) and adjusted models (aOR 2.22 (95% CI 1.02-4.85; P=0.045)). Conclusions SCD40L was associated with lower odds of AA whereas D-dimer was independently associated with higher odds of AA in PLWH. This calls for further investigations into specific biomarkers to aid early diagnosis of AA in PLWH.
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Affiliation(s)
- Sylvester Klöcker Grønbæk
- Department of Infectious Diseases, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark,*Correspondence: Susanne Dam Nielsen, ; Sylvester Klöcker Grønbæk,
| | - Julie Høgh
- Department of Infectious Diseases, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Andreas Dehlbæk Knudsen
- Department of Infectious Diseases, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Michael Huy Cuong Pham
- Department of Cardiology, The Heart Center, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Per Ejlstrup Sigvardsen
- Department of Cardiology, The Heart Center, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Andreas Fuchs
- Department of Cardiology, The Heart Center, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Jørgen Tobias Kühl
- Department of Cardiology, The Heart Center, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Lars Køber
- Department of Cardiology, The Heart Center, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark,Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Jan Gerstoft
- Department of Infectious Diseases, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark,Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Thomas Benfield
- Center of Research and Disruption of Infectious Diseases, Department of Infectious Diseases, Copenhagen University Hospital, Amager and Hvidovre, Hvidovre, Denmark
| | - Sisse Rye Ostrowski
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark,Department of Clinical Immunology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Klaus Fuglsang Kofoed
- Department of Cardiology, The Heart Center, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark,Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark,Department of Radiology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Susanne Dam Nielsen
- Department of Infectious Diseases, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark,Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark,*Correspondence: Susanne Dam Nielsen, ; Sylvester Klöcker Grønbæk,
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Dai M, Zhu X, Zeng S, Liu Q, Hu R, Huang L, Wang Y, Deng J, Yu Q. Dexmedetomidine protects cells from Angiotensin II-induced smooth muscle cell phenotype switch and endothelial cell dysfunction. Cell Cycle 2023; 22:450-463. [PMID: 36196460 PMCID: PMC9879174 DOI: 10.1080/15384101.2022.2124489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 08/07/2022] [Accepted: 09/10/2022] [Indexed: 01/29/2023] Open
Abstract
Abdominal aortic aneurysm (AAA) is a vascular disorder greatly threatening life of the elderly population. Dexmedetomidine (DEX), an α2-adrenergic receptor agonist, has been shown to suppress AAA development. Nevertheless, the signaling pathways that might be mediated by DEX in AAA has not been clarified. Vascular smooth muscle cells (VSMCs) and endothelial cells (ECs) were treated with Angiotensin II (Ang II) to mimic AAA in vitro. BrdU, wound healing, and Transwell assays were utilized for measuring VSMC proliferation and migration. Western blotting was used for evaluating protein levels of contractile VSMC markers, collagens and matrix metalloproteinases (MMPs) in VSMCs as well as apoptosis- and HMGB1/TLR4/NF-κB signaling-related markers in ECs. Cell adhesion molecule expression and monocyte-endothelial adhesion were assessed by immunofluorescence staining and adhesion assays. Flow cytometry was implemented for analyzing EC apoptosis. Hematoxylin-eosin staining and ELISA were used to detect the effect of DEX in vivo. In this study, DEX inhibited Ang II-evoked VSMC phenotype switch and extracellular matrix degradation. DEX suppressed the inflammatory response and apoptosis of ECs induced by Ang II. DEX inhibited HMGB1/TLR4/NF-κB signaling pathway in Ang II-treated ECs. DEX attenuated Ang II-induced AAA and inflammation in mice. Overall, DEX ameliorates Ang II-induced VSMC phenotype switch, and inactivates HMGB1/TLR4/NF-κB signaling pathway to alleviate Ang II-induced EC dysfunction.
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Affiliation(s)
- Min Dai
- Department of General Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Xiaohong Zhu
- Department of Anesthesiology, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Simin Zeng
- Department of General Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Qiang Liu
- Department of General Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Ruilin Hu
- Department of General Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Lianghui Huang
- Department of General Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Yu Wang
- Department of General Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Jun Deng
- Department of General Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Qi Yu
- Department of Anesthesiology, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
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Zilberman B, Kooragayala K, Lou J, Ghobrial G, De Leo N, Emery R, Ostrovsky O, Zhang P, Platoff R, Zhu C, Hunter K, Delong D, Hong Y, Brown SA, Carpenter JP. Treatment of Abdominal Aortic Aneurysm Utilizing Adipose-Derived Mesenchymal Stem Cells in a Porcine Model. J Surg Res 2022; 278:247-256. [DOI: 10.1016/j.jss.2022.04.064] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 04/11/2022] [Accepted: 04/23/2022] [Indexed: 12/19/2022]
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Endothelial Dysfunction in the Pathogenesis of Abdominal Aortic Aneurysm. Biomolecules 2022; 12:biom12040509. [PMID: 35454098 PMCID: PMC9030795 DOI: 10.3390/biom12040509] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Revised: 03/18/2022] [Accepted: 03/27/2022] [Indexed: 12/25/2022] Open
Abstract
Abdominal aortic aneurysm (AAA), defined as a focal dilation of the abdominal aorta beyond 50% of its normal diameter, is a common and potentially life-threatening vascular disease. The molecular and cellular mechanisms underlying AAA pathogenesis remain unclear. Healthy endothelial cells (ECs) play a critical role in maintaining vascular homeostasis by regulating vascular tone and maintaining an anti-inflammatory, anti-thrombotic local environment. Increasing evidence indicates that endothelial dysfunction is an early pathologic event in AAA formation, contributing to both oxidative stress and inflammation in the degenerating arterial wall. Recent studies utilizing single-cell RNA sequencing revealed heterogeneous EC sub-populations, as determined by their transcriptional profiles, in aortic aneurysm tissue. This review summarizes recent findings, including clinical evidence of endothelial dysfunction in AAA, the impact of biomechanical stress on EC in AAA, the role of endothelial nitric oxide synthase (eNOS) uncoupling in AAA, and EC heterogeneity in AAA. These studies help to improve our understanding of AAA pathogenesis and ultimately may lead to the generation of EC-targeted therapeutics to treat or prevent this deadly disease.
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22
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Zhang L, Li M, Wang Z, Sun P, Wei S, Zhang C, Wu H, Bai H. Cardiovascular Risk After SARS-CoV-2 Infection Is Mediated by IL18/IL18R1/HIF-1 Signaling Pathway Axis. Front Immunol 2022; 12:780804. [PMID: 35069552 PMCID: PMC8766743 DOI: 10.3389/fimmu.2021.780804] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Accepted: 12/16/2021] [Indexed: 01/10/2023] Open
Abstract
Objectives Currently, cardiovascular risk associated with COVID-19 has been brought to people's attention, but the mechanism is not clear. The aim of this study is to elucidate the mechanisms based on multiple omics data. Methodology Weighted gene co-expression network analysis (WGCNA) was used to identify key pathways. Combination analysis with aneurysm and atherosclerosis related pathways, hypoxia induced factor-1 (HIF-1) signaling were identified as key pathways of the increased cardiovascular risk associated with COVID-19. ScMLnet algorithm based on scRNA-seq was used to explore the regulation of HIF-1 pathway by intercellular communication. Proteomic analysis was used to detect the regulatory mechanisms between IL18 and HIF-1 signaling pathway. Pseudo time locus analysis was used to study the regulation of HIF1 signaling pathway in macrophages and vascular smooth muscle cells (VSMC) phenotypic transformation. The Virtual Inference of protein-activity by Enriched Regulon (VIPER) analysis was used to study the activity of regulatory proteins. Epigenetic analysis based on methylation revealed epigenetic changes in PBMC after SARS-CoV-2 infection. Potential therapeutic compounds were explored by using Cmap algorithm. Results HIF-1 signaling pathway is a common key pathway for aneurysms, atherosclerosis and SARS-CoV-2 infection. Intercellular communication analysis showed that macrophage-derived interleukin-18 (IL-18) activates the HIF-1 signaling pathway through IL18R1. Proteomic analysis showed that IL18/IL18R1 promote NF-κB entry into the nucleus, and activated the HIF-1 signaling pathway. Macrophage-derived IL18 promoted the M1 polarization of macrophages and the syntactic phenotype transformation of VSMCs. MAP2K1 mediates the functional regulation of HIF-1 signaling pathway in various cell types. Epigenetic changes in PBMC after COVID-19 infection are characterized by activation of the type I interferon pathway. MEK inhibitors are the promising compounds for the treatment of HIF-1 overactivation. Conclusions The IL18/IL18R1/HIF1A axis is expected to be an therapeutic target for cardiovascular protection after SARS-CoV-2 infection. MEK inhibitors may be an choice for cardiovascular protection after SARS-COV-2 infection.
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Affiliation(s)
- Liwei Zhang
- Department of Vascular and Endovascular Surgery, First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Mingxing Li
- Department of Vascular and Endovascular Surgery, First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Zhiwei Wang
- Department of Vascular and Endovascular Surgery, First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Peng Sun
- Department of Vascular and Endovascular Surgery, First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Shunbo Wei
- Department of Vascular and Endovascular Surgery, First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Cong Zhang
- Department of Vascular and Endovascular Surgery, First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Haoliang Wu
- Department of Vascular and Endovascular Surgery, First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Hualong Bai
- Department of Vascular and Endovascular Surgery, First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Key Vascular Physiology and Applied Research Laboratory of Zhengzhou City, Zhengzhou, China
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Wang H, Balzani D, Vedula V, Uhlmann K, Varnik F. On the Potential Self-Amplification of Aneurysms Due to Tissue Degradation and Blood Flow Revealed From FSI Simulations. Front Physiol 2021; 12:785780. [PMID: 34955893 PMCID: PMC8709128 DOI: 10.3389/fphys.2021.785780] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Accepted: 11/09/2021] [Indexed: 11/13/2022] Open
Abstract
Tissue degradation plays a crucial role in the formation and rupture of aneurysms. Using numerical computer simulations, we study the combined effects of blood flow and tissue degradation on intra-aneurysm hemodynamics. Our computational analysis reveals that the degradation-induced changes of the time-averaged wall shear stress (TAWSS) and oscillatory shear index (OSI) within the aneurysm dome are inversely correlated. Importantly, their correlation is enhanced in the process of tissue degradation. Regions with a low TAWSS and a high OSI experience still lower TAWSS and higher OSI during degradation. Furthermore, we observed that degradation leads to an increase of the endothelial cell activation potential index, in particular, at places experiencing low wall shear stress. These findings are robust and occur for different geometries, degradation intensities, heart rates and pressures. We interpret these findings in the context of recent literature and argue that the degradation-induced hemodynamic changes may lead to a self-amplification of the flow-induced progressive damage of the aneurysmal wall.
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Affiliation(s)
- Haifeng Wang
- Theory and Simulation of Complex Fluids, Department of Scale-Bridging Thermodynamic and Kinetic Simulation, Interdisciplinary Center for Advanced Materials Simulation (ICAMS), Ruhr-Universität Bochum, Bochum, Germany
| | - Daniel Balzani
- Department of Civil and Environmental Engineering, Chair of Continuum Mechanics, Ruhr-Universität Bochum, Bochum, Germany
| | - Vijay Vedula
- Department of Mechanical Engineering, Columbia University in the City of New York, New York, NY, United States
| | - Klemens Uhlmann
- Department of Civil and Environmental Engineering, Chair of Continuum Mechanics, Ruhr-Universität Bochum, Bochum, Germany
| | - Fathollah Varnik
- Theory and Simulation of Complex Fluids, Department of Scale-Bridging Thermodynamic and Kinetic Simulation, Interdisciplinary Center for Advanced Materials Simulation (ICAMS), Ruhr-Universität Bochum, Bochum, Germany
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24
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Salman HE, Kamal RY, Yalcin HC. Numerical Investigation of the Fetal Left Heart Hemodynamics During Gestational Stages. Front Physiol 2021; 12:731428. [PMID: 34566694 PMCID: PMC8458957 DOI: 10.3389/fphys.2021.731428] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2021] [Accepted: 08/17/2021] [Indexed: 11/23/2022] Open
Abstract
Flow-driven hemodynamic forces on the cardiac tissues have critical importance, and have a significant role in the proper development of the heart. These mechanobiological mechanisms govern the cellular responses for the growth and remodeling of the heart, where the altered hemodynamic environment is believed to be a major factor that is leading to congenital heart defects (CHDs). In order to investigate the mechanobiological development of the normal and diseased hearts, identification of the blood flow patterns and wall shear stresses (WSS) on these tissues are required for an accurate hemodynamic assessment. In this study, we focus on the left heart hemodynamics of the human fetuses throughout the gestational stages. Computational fetal left heart models are created for the healthy fetuses using the ultrasound images at various gestational weeks. Realistic inflow boundary conditions are implemented in the models using the Doppler ultrasound measurements for resolving the specific blood flow waveforms in the mitral valve. Obtained results indicate that WSS and vorticity levels in the fetal left heart decrease with the development of the fetus. The maximum WSS around the mitral valve is determined around 36 Pa at the gestational week of 16. This maximum WSS decreases to 11 Pa at the gestational week of 27, indicating nearly three-times reduction in the peak shear stress. These findings reveal the highly dynamic nature of the left heart hemodynamics throughout the development of the human fetus and shed light into the relevance of hemodynamic environment and development of CHDs.
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Affiliation(s)
- Huseyin Enes Salman
- Department of Mechanical Engineering, TOBB University of Economics and Technology, Ankara, Turkey
| | - Reema Yousef Kamal
- Pediatric Cardiology Division, Hamad General Hospital, Hamad Medical Corporation, Doha, Qatar
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Potency of miR-144-3p in promoting abdominal aortic aneurysm progression in mice correlates with apoptosis of smooth muscle cells. Vascul Pharmacol 2021; 142:106901. [PMID: 34364983 DOI: 10.1016/j.vph.2021.106901] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 07/20/2021] [Accepted: 08/02/2021] [Indexed: 12/24/2022]
Abstract
Abdominal aortic aneurysm (AAA), a life-threatening disease, is commonly diagnosed among people with risk factors, including increasing age, male gender, and smoking. The apoptosis of smooth muscle cells (SMCs) has been reported to disrupt the vascular structural integrity, which causes AAA. Thus, we sought to characterize the potential role of microRNA (miR)-144-3p in SMC apoptosis, and to outline the molecular mechanisms involved in this pathway. We collected pathological abdominal aortic tissues and adjacent normal aortic biopsy specimens from 18 patients undergoing AAA repair surgery. The relationship between miR-144-3p expression and SMC proliferation was assessed by transfecting mimic/inhibitor of miR-144-3p in human aortic smooth muscle cells (HASMCs). Anti-growth effect of miR-144-3p and related genes was evaluated in a murine AAA model. Dual luciferase reporter gene assay was adopted to validate the targeting relationship between miR-144-3p and enhancer of zeste homolog 2 (EZH2), and the enrichment of EZH2 in the p21 promoter region was determined by chromatin immunoprecipitation assay. MiR-144-3p was highly expressed in AAA tissues. Enhanced miR-144-3p diminished SMC proliferation by binding to the EZH2 3'-untranslated region and thereby inhibiting EZH2 expression. In addition, EZH2 was highly enriched in the promoter region of p21, and knockdown of p21 expression could rescue the effect of miR-144-3p on SMC proliferation and apoptosis. miR-144-3p serves as a promoter for the apoptosis of SMCs, which contributes to the occurrence and progression of AAA. This observation will serve as the basis for further investigations into potential p21-based therapies for AAA treatment.
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Self-healing polyurethane-elastomer with mechanical tunability for multiple biomedical applications in vivo. Nat Commun 2021; 12:4395. [PMID: 34285224 PMCID: PMC8292539 DOI: 10.1038/s41467-021-24680-x] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Accepted: 06/07/2021] [Indexed: 02/06/2023] Open
Abstract
The unique properties of self-healing materials hold great potential in the field of biomedical engineering. Although previous studies have focused on the design and synthesis of self-healing materials, their application in in vivo settings remains limited. Here, we design a series of biodegradable and biocompatible self-healing elastomers (SHEs) with tunable mechanical properties, and apply them to various disease models in vivo, in order to test their reparative potential in multiple tissues and at physiological conditions. We validate the effectiveness of SHEs as promising therapies for aortic aneurysm, nerve coaptation and bone immobilization in three animal models. The data presented here support the translation potential of SHEs in diverse settings, and pave the way for the development of self-healing materials in clinical contexts.
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Horvat N, Virag L, Karšaj I. Mechanical role of intraluminal thrombus in aneurysm growth: A computational study. Biomech Model Mechanobiol 2021; 20:1819-1832. [PMID: 34148166 DOI: 10.1007/s10237-021-01478-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Accepted: 06/07/2021] [Indexed: 12/25/2022]
Abstract
Models that seek to improve our current understanding of biochemical processes and predict disease progression have been increasingly in use over the last decades. Recently, we proposed a finite element implementation of arterial wall growth and remodeling with application to abdominal aortic aneurysms (AAAs). The study focused on changes within the aortic wall and did not include the complex role of intraluminal thrombus (ILT) during the AAA evolution. Thus, in this work, we extend the model with a gradual deposition of ILT and its mechanical influence on AAA growth. Despite neglecting the increased biochemical activity due to the presence of a proteolytically active luminal layer of ILT, and thus underestimating rupture risk potential, we show that ILT helps to slow down the growth of the aneurysm in the axial direction by redirecting blood pressure loading from the axial-radial plane to predominately radial direction. This very likely lowers rupture potential. We also show that the ratio of ILT volume to volume sac is an important factor in AAA stabilization and that fully thrombosed aneurysms could stabilize quicker and at smaller maximum diameters compared to partially thrombosed ones. Furthermore, we show that ILT formation and the associated mural stress decrease negatively impact the wall constituent production and thickness. Although further studies that include increased biochemical degradation of the wall after the formation of ILT and ILT deposition based on hemodynamics are needed, the present findings highlight the dual role an ILT plays during AAA progression.
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Affiliation(s)
- Nino Horvat
- Faculty of Mechanical Engineering and Naval Architecture, University of Zagreb, Ivana Lučića 5, 10000, Zagreb, Croatia
| | - Lana Virag
- Faculty of Mechanical Engineering and Naval Architecture, University of Zagreb, Ivana Lučića 5, 10000, Zagreb, Croatia
| | - Igor Karšaj
- Faculty of Mechanical Engineering and Naval Architecture, University of Zagreb, Ivana Lučića 5, 10000, Zagreb, Croatia.
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Zhao G, Chang Z, Zhao Y, Guo Y, Lu H, Liang W, Rom O, Wang H, Sun J, Zhu T, Fan Y, Chang L, Yang B, Garcia-Barrio MT, Chen YE, Zhang J. KLF11 protects against abdominal aortic aneurysm through inhibition of endothelial cell dysfunction. JCI Insight 2021; 6:141673. [PMID: 33507881 PMCID: PMC8021107 DOI: 10.1172/jci.insight.141673] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Accepted: 01/27/2021] [Indexed: 12/13/2022] Open
Abstract
Abdominal aortic aneurysm (AAA) is a life-threatening degenerative vascular disease. Endothelial cell (EC) dysfunction is implicated in AAA. Our group recently demonstrated that Krüppel-like factor 11 (KLF11) plays an essential role in maintaining vascular homeostasis, at least partially through inhibition of EC inflammatory activation. However, the functions of endothelial KLF11 in AAA remain unknown. Here we found that endothelial KLF11 expression was reduced in the ECs from human aneurysms and was time dependently decreased in the aneurysmal endothelium from both elastase- and Pcsk9/AngII-induced AAA mouse models. KLF11 deficiency in ECs markedly aggravated AAA formation, whereas EC-selective KLF11 overexpression markedly inhibited AAA formation. Mechanistically, KLF11 not only inhibited the EC inflammatory response but also diminished MMP9 expression and activity and reduced NADPH oxidase 2-mediated production of reactive oxygen species in ECs. In addition, KLF11-deficient ECs induced smooth muscle cell dedifferentiation and apoptosis. Overall, we established endothelial KLF11 as a potentially novel factor protecting against AAA and a potential target for intervention in aortic aneurysms.
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Affiliation(s)
- Guizhen Zhao
- Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, Michigan, USA
| | - Ziyi Chang
- Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, Michigan, USA
- Department of Pathology, China-Japan Friendship Hospital, Beijing, China
| | - Yang Zhao
- Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, Michigan, USA
| | - Yanhong Guo
- Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, Michigan, USA
| | - Haocheng Lu
- Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, Michigan, USA
| | - Wenying Liang
- Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, Michigan, USA
| | - Oren Rom
- Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, Michigan, USA
| | - Huilun Wang
- Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, Michigan, USA
| | - Jinjian Sun
- Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, Michigan, USA
- Department of Cardiovascular Medicine, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Tianqing Zhu
- Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, Michigan, USA
| | - Yanbo Fan
- Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, Michigan, USA
- Department of Cancer Biology, College of Medicine, University of Cincinnati, Cincinnati, Ohio. USA
| | - Lin Chang
- Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, Michigan, USA
| | - Bo Yang
- Department of Cardiac Surgery, University of Michigan Medical Center, Ann Arbor, Michigan, USA
| | - Minerva T. Garcia-Barrio
- Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, Michigan, USA
| | - Y. Eugene Chen
- Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, Michigan, USA
- Department of Cardiac Surgery, University of Michigan Medical Center, Ann Arbor, Michigan, USA
| | - Jifeng Zhang
- Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, Michigan, USA
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Parvizi M, Ryan ZC, Ebtehaj S, Arendt BK, Lanza IR. The secretome of senescent preadipocytes influences the phenotype and function of cells of the vascular wall. Biochim Biophys Acta Mol Basis Dis 2020; 1867:165983. [PMID: 33002577 DOI: 10.1016/j.bbadis.2020.165983] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 09/16/2020] [Accepted: 09/24/2020] [Indexed: 01/10/2023]
Abstract
Senescent cells accumulate in numerous tissues in several chronic conditions such as aging, obesity, and diabetes. These cells are in a state of irreversible cell-cycle arrest and secrete inflammatory cytokines, chemokines and other immune modulators that have paracrine effects on nearby tissues. Adipose tissue, in particular, harbors senescent cells, which have been linked with numerous chronic conditions and age-related comorbidities. Here we performed a series of in vitro experiments to determine the influence of senescent preadipocytes on key cell types found in vessel walls, including vascular smooth muscle cells (VSMCs), endothelial cells (ECs), macrophages (MQs), and adipose-derived stromal/stem cells (ASCs). Primary human preadipocytes were irradiated to trigger a senescence-like phenotype. VSMCs, ECs, MQs, and ASCs were exposed to conditioned media collected from irradiated preadipocytes or control preadipocytes. Additional experiments were performed where VSMCs, ECs, MQs, and ASCs were co-cultured with irradiated or control preadipocytes. The secretome of irradiated cells induced an inflammatory phenotype, decreased cell viability, disrupted proliferation and migration, and impaired metabolic function of these cell types in vitro. These maladaptive changes in response to senescent cell exposure provide early evidence in support of a hypothesis that senescent preadipocytes trigger phenotypic and functional changes in key cellular components of blood vessels that may contribute to vascular disease.
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Affiliation(s)
- Mojtaba Parvizi
- Division of Endocrinology and Metabolism, Mayo Clinic College of Medicine, Rochester, MN, USA
| | - Zachary C Ryan
- Division of Endocrinology and Metabolism, Mayo Clinic College of Medicine, Rochester, MN, USA
| | - Sanam Ebtehaj
- Department of Cardiovascular Diseases, Mayo Clinic College of Medicine, Rochester, MN, USA
| | - Bonnie K Arendt
- Division of Endocrinology and Metabolism, Mayo Clinic College of Medicine, Rochester, MN, USA
| | - Ian R Lanza
- Division of Endocrinology and Metabolism, Mayo Clinic College of Medicine, Rochester, MN, USA.
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Jana S, Hu M, Shen M, Kassiri Z. Extracellular matrix, regional heterogeneity of the aorta, and aortic aneurysm. Exp Mol Med 2019; 51:1-15. [PMID: 31857579 PMCID: PMC6923362 DOI: 10.1038/s12276-019-0286-3] [Citation(s) in RCA: 110] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Accepted: 06/17/2019] [Indexed: 12/12/2022] Open
Abstract
Aortic aneurysm is an asymptomatic disease with dire outcomes if undiagnosed. Aortic aneurysm rupture is a significant cause of death worldwide. To date, surgical repair or endovascular repair (EVAR) is the only effective treatment for aortic aneurysm, as no pharmacological treatment has been found effective. Aortic aneurysm, a focal dilation of the aorta, can be formed in the thoracic (TAA) or the abdominal (AAA) region; however, our understanding as to what determines the site of aneurysm formation remains quite limited. The extracellular matrix (ECM) is the noncellular component of the aortic wall, that in addition to providing structural support, regulates bioavailability of an array of growth factors and cytokines, thereby influencing cell function and behavior that ultimately determine physiological or pathological remodeling of the aortic wall. Here, we provide an overview of the ECM proteins that have been reported to be involved in aortic aneurysm formation in humans or animal models, and the experimental models for TAA and AAA and the link to ECM manipulations. We also provide a comparative analysis, where data available, between TAA and AAA, and how aberrant ECM proteolysis versus disrupted synthesis may determine the site of aneurysm formation. A review of aneurysm formation, swelling in blood vessel, in the aorta, examines distinctions between two forms of the condition and the role of proteins in the extracellular matrix which surrounds cells of the arterial wall. Rupture of aneurysms in the aorta, the body’s main artery, is a major cause of death. Researchers led by Zamaneh Kassiri at the University of Alberta, Edmonton, Canada, emphasize that aneurysms in the thoracic and abdominal regions of the aorta are distinct conditions with crucial differences in their causes. Disrupted production and assembly of the extracellular matrix and its proteins may underlie thoracic aneurysm formation. Factors triggering the degradation of extracellular matrix proteins may be more significant in abdominal aneurysms. Understanding the differing molecular mechanisms involved could help address the current lack of effective drug treatments for these dangerous conditions.
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Affiliation(s)
- Sayantan Jana
- Department of Physiology, Cardiovascular Research Center, University of Alberta, Edmonton, AB, Canada
| | - Mei Hu
- Department of Physiology, Cardiovascular Research Center, University of Alberta, Edmonton, AB, Canada
| | - Mengcheng Shen
- Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA, USA
| | - Zamaneh Kassiri
- Department of Physiology, Cardiovascular Research Center, University of Alberta, Edmonton, AB, Canada.
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Sun Y, Xiao Y, Sun H, Zhao Z, Zhu J, Zhang L, Dong J, Han T, Jing Q, Zhou J, Jing Z. miR-27a regulates vascular remodeling by targeting endothelial cells' apoptosis and interaction with vascular smooth muscle cells in aortic dissection. Am J Cancer Res 2019; 9:7961-7975. [PMID: 31695809 PMCID: PMC6831472 DOI: 10.7150/thno.35737] [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: 04/14/2019] [Accepted: 09/04/2019] [Indexed: 12/15/2022] Open
Abstract
Rationale: Aortic dissection (AD) is caused by functional disorder of cells in the aortic wall, which is largely attributed to vascular remodeling. Therapeutic strategies for AD remain limited due to our incomplete understanding of the role of endothelial cells (ECs) in AD pathogenesis. This study aimed to identify the regulatory role of miR-27a in AD and provide a mechanistic basis for a non-invasive treatment of AD. Methods: We harvested aortas from normal and AD patients to explore the expression of miR-27a. In vitro and in vivo assays were preformed to explore the biological effects of differential expression of miR-27a in ECs and its regulatory effect on AD. Results: MiR-27a was lower in intima of AD samples than in healthy individuals. Downregulation of miR-27a in EC was due to up-regulated expression of fas-associated protein with death domain (FADD) and the activation of apoptosis pathway, which led to apoptosis of ECs. Migration of vascular smooth muscle cells was promoted by EC after downregulation of miR-27a due to enhancement of growth/differentiation factor 8 (GDF8) and repression of matrix metalloproteinase-20 (MMP20) in the co-culture system supernatants. Increase in FADD and apoptosis of ECs to induce AD was shown using mouse models of AD in which miR-27a was stably knocked-down by antagomir. Up-regulation of miR-27a by agomir led to a protective effect on AD. Conclusion: Treatment with miR-27a activator that targets apoptosis of ECs strongly diminished occurrence of AD, providing a new strategy for this disease.
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Salman HE, Ramazanli B, Yavuz MM, Yalcin HC. Biomechanical Investigation of Disturbed Hemodynamics-Induced Tissue Degeneration in Abdominal Aortic Aneurysms Using Computational and Experimental Techniques. Front Bioeng Biotechnol 2019; 7:111. [PMID: 31214581 PMCID: PMC6555197 DOI: 10.3389/fbioe.2019.00111] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2019] [Accepted: 05/02/2019] [Indexed: 11/13/2022] Open
Abstract
Abdominal aortic aneurysm (AAA) is the dilatation of the aorta beyond 50% of the normal vessel diameter. It is reported that 4-8% of men and 0.5-1% of women above 50 years of age bear an AAA and it accounts for ~15,000 deaths per year in the United States alone. If left untreated, AAA might gradually expand until rupture; the most catastrophic complication of the aneurysmal disease that is accompanied by a striking overall mortality of 80%. The precise mechanisms leading to AAA rupture remains unclear. Therefore, characterization of disturbed hemodynamics within AAAs will help to understand the mechanobiological development of the condition which will contribute to novel therapies for the condition. Due to geometrical complexities, it is challenging to directly quantify disturbed flows for AAAs clinically. Two other approaches for this investigation are computational modeling and experimental flow measurement. In computational modeling, the problem is first defined mathematically, and the solution is approximated with numerical techniques to get characteristics of flow. In experimental flow measurement, once the setup providing physiological flow pattern in a phantom geometry is constructed, velocity measurement system such as particle image velocimetry (PIV) enables characterization of the flow. We witness increasing number of applications of these complimentary approaches for AAA investigations in recent years. In this paper, we outline the details of computational modeling procedures and experimental settings and summarize important findings from recent studies, which will help researchers for AAA investigations and rupture mechanics.
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Affiliation(s)
| | - Burcu Ramazanli
- Department of Mechanical Engineering, Middle East Technical University, Ankara, Turkey
| | - Mehmet Metin Yavuz
- Department of Mechanical Engineering, Middle East Technical University, Ankara, Turkey
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Hosoyama K, Wakao S, Kushida Y, Ogura F, Maeda K, Adachi O, Kawamoto S, Dezawa M, Saiki Y. Intravenously injected human multilineage-differentiating stress-enduring cells selectively engraft into mouse aortic aneurysms and attenuate dilatation by differentiating into multiple cell types. J Thorac Cardiovasc Surg 2018; 155:2301-2313.e4. [DOI: 10.1016/j.jtcvs.2018.01.098] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Revised: 01/13/2018] [Accepted: 01/22/2018] [Indexed: 12/23/2022]
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Olmer R, Engels L, Usman A, Menke S, Malik MNH, Pessler F, Göhring G, Bornhorst D, Bolten S, Abdelilah-Seyfried S, Scheper T, Kempf H, Zweigerdt R, Martin U. Differentiation of Human Pluripotent Stem Cells into Functional Endothelial Cells in Scalable Suspension Culture. Stem Cell Reports 2018; 10:1657-1672. [PMID: 29681541 PMCID: PMC5995343 DOI: 10.1016/j.stemcr.2018.03.017] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2017] [Revised: 03/20/2018] [Accepted: 03/20/2018] [Indexed: 12/11/2022] Open
Abstract
Endothelial cells (ECs) are involved in a variety of cellular responses. As multifunctional components of vascular structures, endothelial (progenitor) cells have been utilized in cellular therapies and are required as an important cellular component of engineered tissue constructs and in vitro disease models. Although primary ECs from different sources are readily isolated and expanded, cell quantity and quality in terms of functionality and karyotype stability is limited. ECs derived from human induced pluripotent stem cells (hiPSCs) represent an alternative and potentially superior cell source, but traditional culture approaches and 2D differentiation protocols hardly allow for production of large cell numbers. Aiming at the production of ECs, we have developed a robust approach for efficient endothelial differentiation of hiPSCs in scalable suspension culture. The established protocol results in relevant numbers of ECs for regenerative approaches and industrial applications that show in vitro proliferation capacity and a high degree of chromosomal stability. Efficient generation of hiPSC-derived ECs in scalable suspension culture High degree of chromosomal stability of hiPSC-ECs after in vitro expansion Generation of relevant numbers of hiPSC-ECs for regenerative approaches
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Affiliation(s)
- Ruth Olmer
- Leibniz Research Laboratories for Biotechnology and Artificial Organs (LEBAO), Department of Cardiothoracic, Transplantation and Vascular Surgery (HTTG), Hannover Medical School, Carl-Neuberg-Str.1, 30625 Hannover, Germany; REBIRTH-Cluster of Excellence, Hannover Medical School, 30625 Hannover, Germany; Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH), German Center for Lung Research (DZL), 30625 Hannover, Germany
| | - Lena Engels
- Leibniz Research Laboratories for Biotechnology and Artificial Organs (LEBAO), Department of Cardiothoracic, Transplantation and Vascular Surgery (HTTG), Hannover Medical School, Carl-Neuberg-Str.1, 30625 Hannover, Germany; REBIRTH-Cluster of Excellence, Hannover Medical School, 30625 Hannover, Germany
| | - Abdulai Usman
- Leibniz Research Laboratories for Biotechnology and Artificial Organs (LEBAO), Department of Cardiothoracic, Transplantation and Vascular Surgery (HTTG), Hannover Medical School, Carl-Neuberg-Str.1, 30625 Hannover, Germany; REBIRTH-Cluster of Excellence, Hannover Medical School, 30625 Hannover, Germany; Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH), German Center for Lung Research (DZL), 30625 Hannover, Germany
| | - Sandra Menke
- Leibniz Research Laboratories for Biotechnology and Artificial Organs (LEBAO), Department of Cardiothoracic, Transplantation and Vascular Surgery (HTTG), Hannover Medical School, Carl-Neuberg-Str.1, 30625 Hannover, Germany; REBIRTH-Cluster of Excellence, Hannover Medical School, 30625 Hannover, Germany; Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH), German Center for Lung Research (DZL), 30625 Hannover, Germany
| | - Muhammad Nasir Hayat Malik
- TWINCORE Centre for Experimental and Clinical Infection Research, 30625 Hannover, Germany; Helmholtz-Centre for Infection Research Braunschweig, 38124 Braunschweig, Germany; Centre for Individualised Infection Medicine, 30625 Hannover, Germany
| | - Frank Pessler
- TWINCORE Centre for Experimental and Clinical Infection Research, 30625 Hannover, Germany; Helmholtz-Centre for Infection Research Braunschweig, 38124 Braunschweig, Germany; Centre for Individualised Infection Medicine, 30625 Hannover, Germany
| | - Gudrun Göhring
- Institute of Cell and Molecular Pathology, Hannover Medical School, 30625 Hannover, Germany
| | - Dorothee Bornhorst
- REBIRTH-Cluster of Excellence, Hannover Medical School, 30625 Hannover, Germany; Institute of Molecular Biology, Hannover Medical School, 30625 Hannover, Germany
| | - Svenja Bolten
- REBIRTH-Cluster of Excellence, Hannover Medical School, 30625 Hannover, Germany; Institute of Biochemistry and Biology, Potsdam University, Karl-Liebknecht-Straße 24-25, 14476 Potsdam, Germany
| | - Salim Abdelilah-Seyfried
- Institute of Molecular Biology, Hannover Medical School, 30625 Hannover, Germany; Institute of Biochemistry and Biology, Potsdam University, Karl-Liebknecht-Straße 24-25, 14476 Potsdam, Germany
| | - Thomas Scheper
- REBIRTH-Cluster of Excellence, Hannover Medical School, 30625 Hannover, Germany; Institute for Technical Chemistry, Leibniz University Hannover, 30167 Hannover, Germany
| | - Henning Kempf
- Leibniz Research Laboratories for Biotechnology and Artificial Organs (LEBAO), Department of Cardiothoracic, Transplantation and Vascular Surgery (HTTG), Hannover Medical School, Carl-Neuberg-Str.1, 30625 Hannover, Germany; REBIRTH-Cluster of Excellence, Hannover Medical School, 30625 Hannover, Germany
| | - Robert Zweigerdt
- Leibniz Research Laboratories for Biotechnology and Artificial Organs (LEBAO), Department of Cardiothoracic, Transplantation and Vascular Surgery (HTTG), Hannover Medical School, Carl-Neuberg-Str.1, 30625 Hannover, Germany; REBIRTH-Cluster of Excellence, Hannover Medical School, 30625 Hannover, Germany
| | - Ulrich Martin
- Leibniz Research Laboratories for Biotechnology and Artificial Organs (LEBAO), Department of Cardiothoracic, Transplantation and Vascular Surgery (HTTG), Hannover Medical School, Carl-Neuberg-Str.1, 30625 Hannover, Germany; REBIRTH-Cluster of Excellence, Hannover Medical School, 30625 Hannover, Germany; Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH), German Center for Lung Research (DZL), 30625 Hannover, Germany.
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Sun J, Deng H, Zhou Z, Xiong X, Gao L. Endothelium as a Potential Target for Treatment of Abdominal Aortic Aneurysm. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2018; 2018:6306542. [PMID: 29849906 PMCID: PMC5903296 DOI: 10.1155/2018/6306542] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Revised: 01/14/2018] [Accepted: 02/01/2018] [Indexed: 12/18/2022]
Abstract
Abdominal aortic aneurysm (AAA) was previously ascribed to weaken defective medial arterial/adventitial layers, for example, smooth muscle/fibroblast cells. Therefore, besides surgical repair, medications targeting the medial layer to strengthen the aortic wall are the most feasible treatment strategy for AAA. However, so far, it is unclear whether such drugs have any beneficial effect on AAA prognosis, rate of aneurysm growth, rupture, or survival. Notably, clinical studies have shown that AAA is highly associated with endothelial dysfunction in the aged population. Additionally, animal models of endothelial dysfunction and endothelial nitric oxide synthase (eNOS) uncoupling had a very high rate of AAA formation, indicating there is crucial involvement of the endothelium and a possible pharmacological solution targeting the endothelium in AAA treatment. Endothelial cells have been found to trigger vascular wall remodeling by releasing proteases, or recruiting macrophages along with other neutrophils, into the medial layer. Moreover, inflammation and oxidative stress of the arterial wall were induced by endothelial dysfunction. Interestingly, there is a paradoxical differential correlation between diabetes and aneurysm formation in retinal capillaries and the aorta. Deciphering the significance of such a difference may explain current unsuccessful AAA medications and offer a solution to this treatment challenge. It is now believed that AAA and atherosclerosis are two separate but related diseases, based on their different clinical patterns which have further complicated the puzzle. Therefore, a thorough investigation of the interaction between endothelium and medial/adventitial layer may provide us a better understanding and new perspective on AAA formation, especially after taking into account the importance of endothelium in the development of AAA. Moreover, a novel medication strategy replacing the currently used, but suboptimal treatments for AAA, could be informed with this analysis.
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Affiliation(s)
- Jingyuan Sun
- Endocrinology & Metabolism Department, Renmin Hospital of Wuhan University, Wuhan, China
| | - Hongping Deng
- Vascular Surgery Department, Renmin Hospital of Wuhan University, Wuhan, China
| | - Zhen Zhou
- Vascular Surgery Department, Renmin Hospital of Wuhan University, Wuhan, China
| | - Xiaoxing Xiong
- Neurosurgery Department, Renmin Hospital of Wuhan University, Wuhan, China
| | - Ling Gao
- Endocrinology & Metabolism Department, Renmin Hospital of Wuhan University, Wuhan, China
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Hosoyama K, Saiki Y. Muse Cells and Aortic Aneurysm. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 1103:273-291. [PMID: 30484235 DOI: 10.1007/978-4-431-56847-6_15] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The aorta is a well-organized, multilayered structure comprising several cell types, namely, endothelial cells (ECs), vascular smooth muscle cells (VSMCs), and fibroblasts, as well as an extracellular matrix (ECM), which includes elastic and collagen fibers. Aortic aneurysms (AAs) are defined as progressive enlargements of the aorta that carries an incremental risk of rupture as the diameter increases over time. The destruction of the aortic wall tissue is triggered by atherosclerosis, inflammation, and oxidative stress, leading to the activation of matrix metalloproteinases (MMPs), and inflammatory cytokines and chemokines, resulting in the loss of the structural back bone of VSMCs, ECM, and ECs. To date, cell-based therapy has been applied to animal models using several types of cells, such as VSMCs, ECs, and mesenchymal stem cells (MSCs). Although these cells indeed deliver beneficial outcomes for AAs, particularly by paracrine and immunomodulatory effects, the attenuation of aneurysmal dilation with a robust tissue repair is insufficient. Meanwhile, multilineage-differentiating stress-enduring (Muse) cells are known to be endogenous non-tumorigenic pluripotent-like stem cells that are included as several percent of MSCs. Since Muse cells are pluripotent-like, they have the ability to differentiate into cells representative of all three germ layers from a single cell and to self-renew. Moreover, Muse cells are able to home to the site of damage following simple intravenous injection and repair the tissue by replenishing new functional cells through spontaneous differentiation into tissue-compatible cells. Given these unique properties, Muse cells are expected to provide an efficient therapeutic efficacy for AA by simple intravenous injection. In this chapter, we summarize several studies on Muse cell therapy for AA including our recent data, in comparison with other kinds of cell therapies.
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Affiliation(s)
- Katsuhiro Hosoyama
- Division of Cardiovascular Surgery, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Yoshikatsu Saiki
- Division of Cardiovascular Surgery, Tohoku University Graduate School of Medicine, Sendai, Japan.
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Tsai SH, Wang JC, Liao WI, Hsu YJ, Lin CY, Liao MT, Huang PH, Lin SJ. Fucoidan attenuates angiotensin II-induced abdominal aortic aneurysms through the inhibition of c-Jun N-terminal kinase and nuclear factor κB activation. J Vasc Surg 2017; 68:72S-81S.e1. [PMID: 29290496 DOI: 10.1016/j.jvs.2017.09.042] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2017] [Accepted: 09/17/2017] [Indexed: 12/13/2022]
Abstract
BACKGROUND Rupture of abdominal aortic aneurysm (AAA) is one of the leading causes of sudden death among the elderly. Most incidental AAAs are below the threshold for intervention at the time of detection; however, there is no evidence that commonly used cardiovascular drugs have clinical beneficial effects on AAA progression. Therefore, in addition to current cardiovascular risk-reducing treatments, an adjunctive medical therapy targeting the regulation of extracellular matrix metabolism is still required in the clinical setting. Fucoidan is an extract of brown seaweed and a sulfated polysaccharide. Emerging evidence suggests that fucoidan has potential cardiovascular applications. Numerous investigations of fucoidan in diseases of the cardiovascular system have mainly focused on its pleiotropic anti-inflammatory effects. Specifically, fucoidan has been shown to have matrix metalloproteinase (MMP)-reducing effects in several studies. We aimed to evaluate the beneficial effect of fucoidan on aneurysmal growth in a murine model of aortic aneurysm and further provide a rationale for using fucoidan as a medical adjunctive therapy. METHODS A murine model of angiotensin II (Ang II)-induced AAA was used to assess the therapeutic effects of fucoidan on AAA growth in vivo. The characteristics and quantification of AAAs were determined in situ. Human umbilical vein endothelial cells were used for studying the involved pathways in vitro. Western blotting was used to detect the involved signaling pathways both in vivo and in vitro. RESULTS Treatment with fucoidan significantly reduced the incidence of AAA formation. Administration of fucoidan significantly attenuated Ang II-induced aortic expansion from 1.56 ± 0.76 mm to 1.09 ± 0.30 mm. Administration of fucoidan significantly suppressed MMP-2 and MMP-9 activities and reduced the grade of elastin degradation in vivo. In vitro, we found that fucoidan could ameliorate the Ang II-induced phosphorylation of c-Jun N-terminal kinase and nuclear factor κB p65, and it further reduced MMP and reactive oxygen species production. CONCLUSIONS Fucoidan inhibits the progression of experimental AAA growth through the attenuation of proinflammatory nuclear factor κB and c-Jun N-terminal kinase activation. Fucoidan could be a potential medical adjunctive therapy for small AAAs.
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Affiliation(s)
- Shih-Hung Tsai
- Department of Emergency Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan.
| | - Jen-Chun Wang
- Department of Emergency Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan; Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Wen-I Liao
- Department of Emergency Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Yu-Juei Hsu
- Division of Nephrology, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Chih-Yuan Lin
- Division of Cardiovascular Surgery, Department of Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Min-Tser Liao
- Department of Pediatrics, Taoyuan Armed Forces General Hospital, Taoyuan, Taiwan
| | - Po-Hsun Huang
- Division of Cardiology, Department of Internal Medicine, Taipei Veterans General Hospital, Taipei, Taiwan; Cardiovascular Research Center, National Yang-Ming University, Taipei, Taiwan; Department of Medical Research and Education, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Shing-Jong Lin
- Division of Cardiology, Department of Internal Medicine, Taipei Veterans General Hospital, Taipei, Taiwan; Cardiovascular Research Center, National Yang-Ming University, Taipei, Taiwan; Department of Medical Research and Education, Taipei Veterans General Hospital, Taipei, Taiwan
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The Association of Serum Thrombomodulin with Endothelial Injuring Factors in Abdominal Aortic Aneurysm. BIOMED RESEARCH INTERNATIONAL 2017; 2017:2791082. [PMID: 28473982 PMCID: PMC5394357 DOI: 10.1155/2017/2791082] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Revised: 02/24/2017] [Accepted: 03/05/2017] [Indexed: 02/02/2023]
Abstract
Background. The aim of the present study was to evaluate the concentration of serum thrombomodulin (sTM) in the AAA patients and to examine its correlation with various factors which may potentially participate in the endothelial injury. Materials and Methods. Forty-one patients with AAA were involved and divided into subgroups based on different criteria. Concentration of sTM was measured using enzyme-linked-immunosorbent assay (ELISA). The results were compared with those obtained in 30 healthy age- and sex-matched volunteers. Results. The higher concentration of sTM was observed in AAA patients compared with those in controls volunteers [2.37 (1.97–2.82) ng/mL versus 3.93 (2.43–9.20) ng/mL, P < 0.001]. An elevated sTM associated significantly with increased triglycerides (TAG) [P = 0.022], cholesterol [P = 0.029], hsCRP [P = 0.031], and advanced glycation end products (AGEs) [P = 0.033]. Conclusions. The elevation of serum sTM level suggests that endothelial damage occurs in AAA pathogenesis. The correlations observed indicate that lipids abnormalities, inflammation, and oxidative stress may be involved in this destructive process.
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Sivaraman B, Swaminathan G, Moore L, Fox J, Seshadri D, Dahal S, Stoilov I, Zborowski M, Mecham R, Ramamurthi A. Magnetically-responsive, multifunctional drug delivery nanoparticles for elastic matrix regenerative repair. Acta Biomater 2017; 52:171-186. [PMID: 27884774 DOI: 10.1016/j.actbio.2016.11.048] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Revised: 11/14/2016] [Accepted: 11/20/2016] [Indexed: 12/23/2022]
Abstract
Arresting or regressing growth of abdominal aortic aneurysms (AAAs), localized expansions of the abdominal aorta are contingent on inhibiting chronically overexpressed matrix metalloproteases (MMPs)-2 and -9 that disrupt elastic matrix within the aortic wall, concurrent with providing a stimulus to augmenting inherently poor auto-regeneration of these matrix structures. In a recent study we demonstrated that localized, controlled and sustained delivery of doxycycline (DOX; a tetracycline-based antibiotic) from poly(lactic-co-glycolic acid) nanoparticles (PLGA NPs), enhances elastic matrix deposition and MMP-inhibition at a fraction of the therapeutically effective oral dose. The surface functionalization of these NPs with cationic amphiphiles, which enhances their arterial uptake, was also shown to have pro-matrix regenerative and anti-MMP effects independent of the DOX. Based on the hypothesis that the incorporation of superparamagnetic iron oxide NPs (SPIONs) within these PLGA NPs would enhance their targetability to the AAA site under an applied external magnetic field, we sought to evaluate the functional effects of NPs co-encapsulating DOX and SPIONs (DOX-SPION NPs) on elastic matrix regeneration and MMP synthesis/activity in vitro within aneurysmal smooth muscle cell (EaRASMC) cultures. The DOX-SPION NPs were mobile under an applied external magnetic field, while enhancing elastic matrix deposition 1.5-2-fold and significantly inhibiting MMP-2 synthesis and MMP-2 and -9 activities, compared to NP-untreated control cultures. These results illustrate that the multifunctional benefits of NPs are maintained following SPION co-incorporation. Additionally, preliminary studies carried out demonstrated enhanced targetability of SPION-loaded NPs within proteolytically-disrupted porcine carotid arteries ex vivo, under the influence of an applied external magnetic field. Thus, this dual-agent loaded NP system proffers a potential non-surgical option for treating small growing AAAs, via controlled and sustained drug release from multifunctional, targetable nanocarriers. STATEMENT OF SIGNIFICANCE Proactive screening of high risk elderly patients now enables early detection of abdominal aortic aneurysms (AAAs). There are no established drug-based therapeutic alternatives to surgery for AAAs, which is unsuitable for many elderly patients, and none which can achieve restore disrupted and lost elastic matrix in the AAA wall, which is essential to achieve growth arrest or regression. We have developed a first generation design of polymer nanoparticles (NPs) for AAA tissue localized delivery of doxycycline, a modified tetracycline drug at low micromolar doses at which it provides both pro-elastogenic and anti-proteolytic benefits that can augment elastic matrix regenerative repair. The nanocarriers themselves are also uniquely chemically functionalized on their surface to also provide them pro-elastin-regenerative & anti-matrix degradative properties. To provide an active driving force for efficient uptake of intra-lumenally infused NPs to the AAA wall, in this work, we have rendered our polymer NPs mobile in an applied magnetic field via co-incorporation of super-paramagnetic iron oxide NPs. We demonstrate that such modifications significantly improve wall uptake of the NPs with no significant changes to their physical properties and regenerative benefits. Such NPs can potentially stimulate structural repair in the AAA wall following one time infusion to delay or prevent AAA growth to rupture. The therapy can provide a non-surgical treatment option for high risk AAA patients.
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Sénémaud J, Caligiuri G, Etienne H, Delbosc S, Michel JB, Coscas R. Translational Relevance and Recent Advances of Animal Models of Abdominal Aortic Aneurysm. Arterioscler Thromb Vasc Biol 2017; 37:401-410. [DOI: 10.1161/atvbaha.116.308534] [Citation(s) in RCA: 102] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2016] [Accepted: 12/21/2016] [Indexed: 01/11/2023]
Abstract
Human abdominal aortic aneurysm (AAA) pathophysiology is not yet completely understood. In conductance arteries, the insoluble extracellular matrix, synthesized by vascular smooth muscle cells, assumes the function of withstanding the intraluminal arterial blood pressure. Progressive loss of this function through extracellular matrix proteolysis is a main feature of AAAs. As most patients are now treated via endovascular approaches, surgical AAA specimens have become rare. Animal models provide valuable complementary insights into AAA pathophysiology. Current experimental AAA models involve induction of intraluminal dilation (nondissecting AAAs) or a contained intramural rupture (dissecting models). Although the ideal model should reproduce the histological characteristics and natural history of the human disease, none of the currently available animal models perfectly do so. Experimental models try to represent the main pathophysiological determinants of AAAs: genetic or acquired defects in extracellular matrix, loss of vascular smooth muscle cells, and innate or adaptive immune response. Nevertheless, most models are characterized by aneurysmal stabilization and healing after a few weeks because of cessation of the initial stimulus. Recent studies have focused on ways to optimize existing models to allow continuous aneurysmal growth. This review aims to discuss the relevance and recent advances of current animal AAA models.
Visual Overview—
An online visual overview is available for this article.
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Affiliation(s)
- Jean Sénémaud
- From the UMR 1148, Inserm-Paris7 - Denis Diderot University, Xavier Bichat Hospital, Paris, France (J.S., G.C., H.E., S.D., J.-B.M., R.C.); UMR 1173, Inserm-Paris11 - Faculty of Health Sciences Simone Veil, Versailles Saint-Quentin-en-Yvelines University, Paris-Saclay University, Montigny-le-Bretonneux, France (R.C.); Department of Vascular Surgery, Ambroise Paré University Hospital, AP-HP, Boulogne-Billancourt, France (R.C.); and UMR 1018, Inserm-Paris11 - CESP, Versailles Saint-Quentin-en-Yvelines
| | - Giuseppina Caligiuri
- From the UMR 1148, Inserm-Paris7 - Denis Diderot University, Xavier Bichat Hospital, Paris, France (J.S., G.C., H.E., S.D., J.-B.M., R.C.); UMR 1173, Inserm-Paris11 - Faculty of Health Sciences Simone Veil, Versailles Saint-Quentin-en-Yvelines University, Paris-Saclay University, Montigny-le-Bretonneux, France (R.C.); Department of Vascular Surgery, Ambroise Paré University Hospital, AP-HP, Boulogne-Billancourt, France (R.C.); and UMR 1018, Inserm-Paris11 - CESP, Versailles Saint-Quentin-en-Yvelines
| | - Harry Etienne
- From the UMR 1148, Inserm-Paris7 - Denis Diderot University, Xavier Bichat Hospital, Paris, France (J.S., G.C., H.E., S.D., J.-B.M., R.C.); UMR 1173, Inserm-Paris11 - Faculty of Health Sciences Simone Veil, Versailles Saint-Quentin-en-Yvelines University, Paris-Saclay University, Montigny-le-Bretonneux, France (R.C.); Department of Vascular Surgery, Ambroise Paré University Hospital, AP-HP, Boulogne-Billancourt, France (R.C.); and UMR 1018, Inserm-Paris11 - CESP, Versailles Saint-Quentin-en-Yvelines
| | - Sandrine Delbosc
- From the UMR 1148, Inserm-Paris7 - Denis Diderot University, Xavier Bichat Hospital, Paris, France (J.S., G.C., H.E., S.D., J.-B.M., R.C.); UMR 1173, Inserm-Paris11 - Faculty of Health Sciences Simone Veil, Versailles Saint-Quentin-en-Yvelines University, Paris-Saclay University, Montigny-le-Bretonneux, France (R.C.); Department of Vascular Surgery, Ambroise Paré University Hospital, AP-HP, Boulogne-Billancourt, France (R.C.); and UMR 1018, Inserm-Paris11 - CESP, Versailles Saint-Quentin-en-Yvelines
| | - Jean-Baptiste Michel
- From the UMR 1148, Inserm-Paris7 - Denis Diderot University, Xavier Bichat Hospital, Paris, France (J.S., G.C., H.E., S.D., J.-B.M., R.C.); UMR 1173, Inserm-Paris11 - Faculty of Health Sciences Simone Veil, Versailles Saint-Quentin-en-Yvelines University, Paris-Saclay University, Montigny-le-Bretonneux, France (R.C.); Department of Vascular Surgery, Ambroise Paré University Hospital, AP-HP, Boulogne-Billancourt, France (R.C.); and UMR 1018, Inserm-Paris11 - CESP, Versailles Saint-Quentin-en-Yvelines
| | - Raphaël Coscas
- From the UMR 1148, Inserm-Paris7 - Denis Diderot University, Xavier Bichat Hospital, Paris, France (J.S., G.C., H.E., S.D., J.-B.M., R.C.); UMR 1173, Inserm-Paris11 - Faculty of Health Sciences Simone Veil, Versailles Saint-Quentin-en-Yvelines University, Paris-Saclay University, Montigny-le-Bretonneux, France (R.C.); Department of Vascular Surgery, Ambroise Paré University Hospital, AP-HP, Boulogne-Billancourt, France (R.C.); and UMR 1018, Inserm-Paris11 - CESP, Versailles Saint-Quentin-en-Yvelines
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Shen YH, LeMaire SA. Molecular pathogenesis of genetic and sporadic aortic aneurysms and dissections. Curr Probl Surg 2017; 54:95-155. [PMID: 28521856 DOI: 10.1067/j.cpsurg.2017.01.001] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2016] [Accepted: 01/16/2017] [Indexed: 12/20/2022]
Affiliation(s)
- Ying H Shen
- Division of Cardiothoracic Surgery, Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, TX; Department of Cardiovascular Surgery, Texas Heart Institute, Houston, TX; Cardiovascular Research Institute, Baylor College of Medicine, Houston, TX.
| | - Scott A LeMaire
- Division of Cardiothoracic Surgery, Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, TX; Department of Cardiovascular Surgery, Texas Heart Institute, Houston, TX; Cardiovascular Research Institute, Baylor College of Medicine, Houston, TX; Department of Molecular Physiology and Biophysics, Baylor College of Medicine, Houston, TX.
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43
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Ramadan A, Al-Omran M, Verma S. The putative role of autophagy in the pathogenesis of abdominal aortic aneurysms. Atherosclerosis 2017; 257:288-296. [PMID: 28139205 DOI: 10.1016/j.atherosclerosis.2017.01.017] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Revised: 12/08/2016] [Accepted: 01/13/2017] [Indexed: 10/20/2022]
Abstract
Abdominal aortic aneurysms (AAA) are a significant cause of worldwide mortality and morbidity. While the histopathological characteristics of AAA are well documented, the cellular and molecular mechanisms involved in the pathogenesis of AAA are not entirely understood. Autophagy is a highly conserved basal cellular process in eukaryotic cells that involves the turnover of organelles and proteins. It is also activated as an adaptive response to stressful conditions to promote cell survival. While autophagy typically promotes pro-survival processes, it can sometimes lead to cellular demise. Preclinical studies have revealed autophagy to be a protective mechanism in certain vascular diseases with several autophagy-related genes reported to be markedly upregulated in human aneurysmal tissue. The role autophagy plays in the pathogenesis of AAA, however, remains poorly defined. In this review, we discuss the putative role of autophagy in AAA by reviewing several in vitro and in vivo studies that address the functional significance of autophagy in cells that are involved in the pathophysiology of AAA, amongst which are macrophages, smooth muscle and endothelial cells.
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Affiliation(s)
- Azza Ramadan
- Division of Cardiac Surgery, Keenan Research Centre for Biomedical Science of St. Michael's Hospital, Toronto, ON, Canada; Institute of Medical Science, University of Toronto, ON, Canada
| | - Mohammed Al-Omran
- Division of Vascular Surgery, Keenan Research Centre for Biomedical Science of St. Michael's Hospital, Toronto, ON, Canada; Institute of Medical Science, University of Toronto, ON, Canada; Department of Surgery, University of Toronto, ON, Canada; Department of Surgery, King Saud University, Riyadh, Saudi Arabia
| | - Subodh Verma
- Division of Cardiac Surgery, Keenan Research Centre for Biomedical Science of St. Michael's Hospital, Toronto, ON, Canada; Institute of Medical Science, University of Toronto, ON, Canada; Department of Surgery, University of Toronto, ON, Canada.
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Marais L, Franck G, Allaire E, Zidi M. Diameter and thickness-related variations in mechanical properties of degraded arterial wall in the rat xenograft model. J Biomech 2016; 49:3467-3475. [PMID: 27665352 DOI: 10.1016/j.jbiomech.2016.09.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2016] [Revised: 09/07/2016] [Accepted: 09/12/2016] [Indexed: 11/30/2022]
Abstract
The purpose of this study was to evaluate the diameter and thickness-related variations in mechanical properties of degraded arterial wall. To this end, ring tests were performed on 31 samples from the rat xenograft model of abdominal aortic aneurysm (AAA) and failure properties were determined. An inverse finite element method was then employed to identify the material parameters of a hyperelastic and incompressible strain energy function. Correlations with outer diameter and wall thickness of the rings were examined. Furthermore, we investigated the changes in mechanical properties between the grafts, which consist in guinea pig decellularized aortas, native murine aortas and degraded aortas (AAAs). Decellularized aortas presented a significantly lower ultimate strain associated with a higher stiffening rate compared to native aortas. AAAs exhibited a significantly lower ultimate stress than other groups and an extensible-but-stiff behavior. The proposed approach revealed correlations of ultimate stress and material parameters of aneurysmal aortas with outer diameter and thickness. In particular, the negative correlations of the material parameter accounting for the response of the non-collagenous matrix with diameter and thickness (r=-0.67 and r=-0.73, p<0.001) captured the gradual loss of elastin with dilatation observed in histology (r=-0.97, p<0.001). Moreover, it exposed the progressive weakening of the wall with enlargement and thickening (r=-0.64 and r=-0.69, p<0.001), suggesting that wall thickness and diameter may be indicators of rupture risk in the rat xenograft model.
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Affiliation(s)
- Louise Marais
- Bioengineering, Tissues and Neuroplasticity, EA 7377, Université Paris-Est Créteil, Faculté de Médecine - Centre de Recherches Chirurgicales, 8 rue du Général Sarrail, 94010 Créteil, France.
| | - Grégory Franck
- Division of Cardiovascular Medicine, Brigham and Women׳s Hospital, Harvard Medical School, Boston, MA 02115, USA.
| | - Eric Allaire
- Department of Vascular Surgery, Henri Mondor Hospital, Assistance Publique-Hôpitaux de Paris, 51 Avenue du Maréchal de Lattre de Tassigny, 94010 Créteil, France.
| | - Mustapha Zidi
- Bioengineering, Tissues and Neuroplasticity, EA 7377, Université Paris-Est Créteil, Faculté de Médecine - Centre de Recherches Chirurgicales, 8 rue du Général Sarrail, 94010 Créteil, France.
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Inhibition of hypoxia inducible factor-1α attenuates abdominal aortic aneurysm progression through the down-regulation of matrix metalloproteinases. Sci Rep 2016; 6:28612. [PMID: 27363580 PMCID: PMC4929442 DOI: 10.1038/srep28612] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2016] [Accepted: 06/06/2016] [Indexed: 12/19/2022] Open
Abstract
Hypoxia inducible factor-1α (HIF-1α) pathway is associated with many vascular diseases, including atherosclerosis, arterial aneurysms, pulmonary hypertension and chronic venous diseases. Significant HIF-1α expression could be found at the rupture edge at human abdominal aortic aneurysm (AAA) tissues. While our initial in vitro experiments had shown that deferoxamine (DFO) could attenuate angiotensin II (AngII) induced endothelial activations; we unexpectedly found that DFO augmented the severity of AngII-induced AAA, at least partly through increased accumulation of HIF-1α. The findings promoted us to test whether aneurysmal prone factors could up-regulate the expression of MMP-2 and MMP-9 through aberrantly increased HIF-1α and promote AAA development. AngII induced AAA in hyperlipidemic mice model was used. DFO, as a prolyl hydroxylase inhibitor, stabilized HIF-1α and augmented MMPs activities. Aneurysmal-prone factors induced HIF-1α can cause overexpression of MMP-2 and MMP-9 and promote aneurysmal progression. Pharmacological HIF-1α inhibitors, digoxin and 2-ME could ameliorate AngII induced AAA in vivo. HIF-1α is pivotal for the development of AAA. Our study provides a rationale for using HIF-1α inhibitors as an adjunctive medical therapy in addition to current cardiovascular risk-reducing regimens.
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Lequoy P, Savoji H, Saoudi B, Bertrand-Grenier A, Wertheimer MR, De Crescenzo G, Soulez G, Lerouge S. In Vitro and Pilot In Vivo Evaluation of a Bioactive Coating for Stent Grafts Based on Chondroitin Sulfate and Epidermal Growth Factor. J Vasc Interv Radiol 2016; 27:753-760.e3. [DOI: 10.1016/j.jvir.2016.02.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2015] [Revised: 01/30/2016] [Accepted: 02/02/2016] [Indexed: 10/22/2022] Open
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Wang KC, Li YH, Shi GY, Tsai HW, Luo CY, Cheng MH, Ma CY, Hsu YY, Cheng TL, Chang BI, Lai CH, Wu HL. Membrane-Bound Thrombomodulin Regulates Macrophage Inflammation in Abdominal Aortic Aneurysm. Arterioscler Thromb Vasc Biol 2015; 35:2412-22. [DOI: 10.1161/atvbaha.115.305529] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2015] [Accepted: 08/18/2015] [Indexed: 01/30/2023]
Abstract
Objective—
Thrombomodulin (TM), a glycoprotein constitutively expressed in the endothelium, is well known for its anticoagulant and anti-inflammatory properties. Paradoxically, we recently found that monocytic membrane-bound TM (ie, endogenous TM expression in monocytes) triggers lipopolysaccharide- and gram-negative bacteria–induced inflammatory responses. However, the significance of membrane-bound TM in chronic sterile vascular inflammation and the development of abdominal aortic aneurysm (AAA) remains undetermined.
Approach and Results—
Implicating a potential role for membrane-bound TM in AAA, we found that TM signals were predominantly localized to macrophages and vascular smooth muscle cells in human aneurysm specimens. Characterization of the CaCl
2
-induced AAA in mice revealed that during aneurysm development, TM expression was mainly localized in infiltrating macrophages and vascular smooth muscle cells. To investigate the function of membrane-bound TM in vivo, transgenic mice with myeloid- (LysMcre/TM
flox/flox
) and vascular smooth muscle cell–specific (SM22-cre
tg
/TM
flox/flox
) TM ablation and their respective wild-type controls (TM
flox/flox
and SM22-cre
tg
/TM
+/+
) were generated. In the mouse CaCl
2
-induced AAA model, deficiency of myeloid TM, but not vascular smooth muscle cell TM, inhibited macrophage accumulation, attenuated proinflammatory cytokine and matrix metalloproteinase-9 production, and finally mitigated elastin destruction and aortic dilatation. In vitro TM-deficient monocytes/macrophages, versus TM wild-type counterparts, exhibited attenuation of proinflammatory mediator expression, adhesion to endothelial cells, and generation of reactive oxygen species. Consistently, myeloid TM–deficient hyperlipidemic mice (ApoE
−/−
/LysMcre/TM
flox/flox
) were resistant to AAA formation induced by angiotensin II infusion, along with reduced macrophage infiltration, suppressed matrix metalloproteinase activities, and diminished oxidative stress.
Conclusions—
Membrane-bound TM in macrophages plays an essential role in the development of AAA by enhancing proinflammatory mediator elaboration, macrophage recruitment, and oxidative stress.
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Affiliation(s)
- Kuan-Chieh Wang
- From the Department of Biochemistry and Molecular Biology (K.-C.W., G.-Y.S., M.-H.C., C.-Y.M., Y.-Y.H., B.-I.C., H.-L.W.), Institute of Basic Medical Sciences (K.-C.W.), Cardiovascular Research Center (K.-C.W., Y.-H.L., G.-Y.S., C.-Y.L., C.-Y.M., Y.-Y.H., B.-I.C., C.-H.L., H.-L.W.), Department of Internal Medicine (Y.-H.L.), Department of Pathology (H.-W.T.), and Department of Surgery (C.-Y.L., C.-H.L.), National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University,
| | - Yi-Heng Li
- From the Department of Biochemistry and Molecular Biology (K.-C.W., G.-Y.S., M.-H.C., C.-Y.M., Y.-Y.H., B.-I.C., H.-L.W.), Institute of Basic Medical Sciences (K.-C.W.), Cardiovascular Research Center (K.-C.W., Y.-H.L., G.-Y.S., C.-Y.L., C.-Y.M., Y.-Y.H., B.-I.C., C.-H.L., H.-L.W.), Department of Internal Medicine (Y.-H.L.), Department of Pathology (H.-W.T.), and Department of Surgery (C.-Y.L., C.-H.L.), National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University,
| | - Guey-Yueh Shi
- From the Department of Biochemistry and Molecular Biology (K.-C.W., G.-Y.S., M.-H.C., C.-Y.M., Y.-Y.H., B.-I.C., H.-L.W.), Institute of Basic Medical Sciences (K.-C.W.), Cardiovascular Research Center (K.-C.W., Y.-H.L., G.-Y.S., C.-Y.L., C.-Y.M., Y.-Y.H., B.-I.C., C.-H.L., H.-L.W.), Department of Internal Medicine (Y.-H.L.), Department of Pathology (H.-W.T.), and Department of Surgery (C.-Y.L., C.-H.L.), National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University,
| | - Hung-Wen Tsai
- From the Department of Biochemistry and Molecular Biology (K.-C.W., G.-Y.S., M.-H.C., C.-Y.M., Y.-Y.H., B.-I.C., H.-L.W.), Institute of Basic Medical Sciences (K.-C.W.), Cardiovascular Research Center (K.-C.W., Y.-H.L., G.-Y.S., C.-Y.L., C.-Y.M., Y.-Y.H., B.-I.C., C.-H.L., H.-L.W.), Department of Internal Medicine (Y.-H.L.), Department of Pathology (H.-W.T.), and Department of Surgery (C.-Y.L., C.-H.L.), National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University,
| | - Chawn-Yau Luo
- From the Department of Biochemistry and Molecular Biology (K.-C.W., G.-Y.S., M.-H.C., C.-Y.M., Y.-Y.H., B.-I.C., H.-L.W.), Institute of Basic Medical Sciences (K.-C.W.), Cardiovascular Research Center (K.-C.W., Y.-H.L., G.-Y.S., C.-Y.L., C.-Y.M., Y.-Y.H., B.-I.C., C.-H.L., H.-L.W.), Department of Internal Medicine (Y.-H.L.), Department of Pathology (H.-W.T.), and Department of Surgery (C.-Y.L., C.-H.L.), National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University,
| | - Min-Hua Cheng
- From the Department of Biochemistry and Molecular Biology (K.-C.W., G.-Y.S., M.-H.C., C.-Y.M., Y.-Y.H., B.-I.C., H.-L.W.), Institute of Basic Medical Sciences (K.-C.W.), Cardiovascular Research Center (K.-C.W., Y.-H.L., G.-Y.S., C.-Y.L., C.-Y.M., Y.-Y.H., B.-I.C., C.-H.L., H.-L.W.), Department of Internal Medicine (Y.-H.L.), Department of Pathology (H.-W.T.), and Department of Surgery (C.-Y.L., C.-H.L.), National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University,
| | - Chih-Yuan Ma
- From the Department of Biochemistry and Molecular Biology (K.-C.W., G.-Y.S., M.-H.C., C.-Y.M., Y.-Y.H., B.-I.C., H.-L.W.), Institute of Basic Medical Sciences (K.-C.W.), Cardiovascular Research Center (K.-C.W., Y.-H.L., G.-Y.S., C.-Y.L., C.-Y.M., Y.-Y.H., B.-I.C., C.-H.L., H.-L.W.), Department of Internal Medicine (Y.-H.L.), Department of Pathology (H.-W.T.), and Department of Surgery (C.-Y.L., C.-H.L.), National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University,
| | - Yun-Yan Hsu
- From the Department of Biochemistry and Molecular Biology (K.-C.W., G.-Y.S., M.-H.C., C.-Y.M., Y.-Y.H., B.-I.C., H.-L.W.), Institute of Basic Medical Sciences (K.-C.W.), Cardiovascular Research Center (K.-C.W., Y.-H.L., G.-Y.S., C.-Y.L., C.-Y.M., Y.-Y.H., B.-I.C., C.-H.L., H.-L.W.), Department of Internal Medicine (Y.-H.L.), Department of Pathology (H.-W.T.), and Department of Surgery (C.-Y.L., C.-H.L.), National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University,
| | - Tsung-Lin Cheng
- From the Department of Biochemistry and Molecular Biology (K.-C.W., G.-Y.S., M.-H.C., C.-Y.M., Y.-Y.H., B.-I.C., H.-L.W.), Institute of Basic Medical Sciences (K.-C.W.), Cardiovascular Research Center (K.-C.W., Y.-H.L., G.-Y.S., C.-Y.L., C.-Y.M., Y.-Y.H., B.-I.C., C.-H.L., H.-L.W.), Department of Internal Medicine (Y.-H.L.), Department of Pathology (H.-W.T.), and Department of Surgery (C.-Y.L., C.-H.L.), National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University,
| | - Bi-Ing Chang
- From the Department of Biochemistry and Molecular Biology (K.-C.W., G.-Y.S., M.-H.C., C.-Y.M., Y.-Y.H., B.-I.C., H.-L.W.), Institute of Basic Medical Sciences (K.-C.W.), Cardiovascular Research Center (K.-C.W., Y.-H.L., G.-Y.S., C.-Y.L., C.-Y.M., Y.-Y.H., B.-I.C., C.-H.L., H.-L.W.), Department of Internal Medicine (Y.-H.L.), Department of Pathology (H.-W.T.), and Department of Surgery (C.-Y.L., C.-H.L.), National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University,
| | - Chao-Han Lai
- From the Department of Biochemistry and Molecular Biology (K.-C.W., G.-Y.S., M.-H.C., C.-Y.M., Y.-Y.H., B.-I.C., H.-L.W.), Institute of Basic Medical Sciences (K.-C.W.), Cardiovascular Research Center (K.-C.W., Y.-H.L., G.-Y.S., C.-Y.L., C.-Y.M., Y.-Y.H., B.-I.C., C.-H.L., H.-L.W.), Department of Internal Medicine (Y.-H.L.), Department of Pathology (H.-W.T.), and Department of Surgery (C.-Y.L., C.-H.L.), National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University,
| | - Hua-Lin Wu
- From the Department of Biochemistry and Molecular Biology (K.-C.W., G.-Y.S., M.-H.C., C.-Y.M., Y.-Y.H., B.-I.C., H.-L.W.), Institute of Basic Medical Sciences (K.-C.W.), Cardiovascular Research Center (K.-C.W., Y.-H.L., G.-Y.S., C.-Y.L., C.-Y.M., Y.-Y.H., B.-I.C., C.-H.L., H.-L.W.), Department of Internal Medicine (Y.-H.L.), Department of Pathology (H.-W.T.), and Department of Surgery (C.-Y.L., C.-H.L.), National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University,
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Virag L, Wilson JS, Humphrey JD, Karšaj I. A Computational Model of Biochemomechanical Effects of Intraluminal Thrombus on the Enlargement of Abdominal Aortic Aneurysms. Ann Biomed Eng 2015; 43:2852-2867. [PMID: 26070724 DOI: 10.1007/s10439-015-1354-z] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2015] [Accepted: 06/03/2015] [Indexed: 10/23/2022]
Abstract
Abdominal aortic aneurysms (AAAs) typically develop an intraluminal thrombus (ILT), yet most computational models of AAAs have focused on either the mechanics of the wall or the hemodynamics within the lesion, both in the absence of ILT. In the few cases wherein ILT has been modeled directly, as, for example, in static models that focus on the state of stress in the aortic wall and the associated rupture risk, thrombus has been modeled as an inert, homogeneous, load-bearing material. Given the biochemomechanical complexity of an ILT, there is a pressing need to consider its diverse effects on the evolving aneurysmal wall. Herein, we present the first growth and remodeling model that addresses together the biomechanics, mechanobiology, and biochemistry of thrombus-laden AAAs. Whereas it has been shown that aneurysmal enlargement in the absence of ILT depends primarily on the stiffness and turnover of fibrillar collagen, we show that the presence of a thrombus within lesions having otherwise the same initial wall composition and properties can lead to either arrest or rupture depending on the biochemical effects (e.g., release of proteases) and biomechanical properties (e.g., stiffness of fibrin) of the ILT. These computational results suggest that ILT should be accounted for when predicting the potential enlargement or rupture risk of AAAs and highlight specific needs for further experimental and computational research.
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Affiliation(s)
- Lana Virag
- Faculty of Mechanical Engineering and Naval Architecture, University of Zagreb, Zagreb, Croatia
| | - John S Wilson
- Department of Biomedical Engineering, Yale University, New Haven, CT, USA
| | - Jay D Humphrey
- Department of Biomedical Engineering, Yale University, New Haven, CT, USA.,Vascular Biology and Therapeutics Program, Yale University, New Haven, CT, USA
| | - Igor Karšaj
- Faculty of Mechanical Engineering and Naval Architecture, University of Zagreb, Zagreb, Croatia
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Michineau S, Franck G, Wagner-Ballon O, Dai J, Allaire E, Gervais M. Chemokine (C-X-C motif) receptor 4 blockade by AMD3100 inhibits experimental abdominal aortic aneurysm expansion through anti-inflammatory effects. Arterioscler Thromb Vasc Biol 2014; 34:1747-55. [PMID: 24876351 DOI: 10.1161/atvbaha.114.303913] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
OBJECTIVE Inflammation plays a critical role in the development of abdominal aortic aneurysms (AAAs). Because stromal cell-derived factor 1 (SDF-1) is known for its ability to attract inflammatory cells, we investigated whether SDF-1/chemokine (C-X-C motif) receptor 4 (CXCR4) axis is expressed in aneurysmal aortic wall and plays a role in AAA physiopathology and asked whether its blockade modulates AAA formation and expansion. APPROACH AND RESULTS Quantitative real-time polymerase chain reaction analysis showed that SDF-1α and CXCR4 mRNA levels are increased in both human and CaCl2-induced mouse AAA wall and are positively correlated to the aortic diameter in mice. ELISA quantification and immunostaining demonstrated that, in mice, aortic SDF-1α is rapidly induced during AAA formation, first by apoptotic vascular smooth muscle cells in the injured media and then by adventitial macrophages once AAA is fully established. Using green fluorescent protein-positive (GFP(+/-)) bone marrow transplantation experiments, we demonstrated that aortic SDF-1 overexpression is implicated in the recruitment of bone marrow-derived macrophages within the AAA wall. Furthermore, in mice, blockade of CXCR4 by AMD3100 decreases the infiltration of adventitial macrophages, inhibits AAA formation, and prevents aortic wall destruction. AMD3100 reduces the mRNA levels of MMP-12 and MMP-14 as well as that of inflammatory effectors MCP-1, MIP-1β, MIP-2α, RANTES, IL-1β, IL-6, TNF-α, and E-selectin. Finally, AMD3100 stabilizes the diameter of formed, expanding AAAs in 2 experimental models. CONCLUSIONS SDF-1/CXCR4 axis is upregulated in human and mouse AAAs. Blockade of CXCR4 with AMD3100 suppresses AAA formation and progression in two rodent models. Blockade of SDF-1/CXCR4 axis may represent a new strategy to limit progression of small human AAAs.
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Affiliation(s)
- Stéphanie Michineau
- From the CNRS EAC 7054, Centre de Recherches Chirurgicales Dominique Chopin, Faculty of Medicine, Paris-Est Créteil University (UPEC), Créteil, France (S.M., G.F., J.D., E.A., M.G.); and Department of Hematology-Immunology, AP-HP, Henri Mondor Hospital, UPEC, Créteil, France (O.W.-B.)
| | - Grégory Franck
- From the CNRS EAC 7054, Centre de Recherches Chirurgicales Dominique Chopin, Faculty of Medicine, Paris-Est Créteil University (UPEC), Créteil, France (S.M., G.F., J.D., E.A., M.G.); and Department of Hematology-Immunology, AP-HP, Henri Mondor Hospital, UPEC, Créteil, France (O.W.-B.)
| | - Orianne Wagner-Ballon
- From the CNRS EAC 7054, Centre de Recherches Chirurgicales Dominique Chopin, Faculty of Medicine, Paris-Est Créteil University (UPEC), Créteil, France (S.M., G.F., J.D., E.A., M.G.); and Department of Hematology-Immunology, AP-HP, Henri Mondor Hospital, UPEC, Créteil, France (O.W.-B.)
| | - Jianping Dai
- From the CNRS EAC 7054, Centre de Recherches Chirurgicales Dominique Chopin, Faculty of Medicine, Paris-Est Créteil University (UPEC), Créteil, France (S.M., G.F., J.D., E.A., M.G.); and Department of Hematology-Immunology, AP-HP, Henri Mondor Hospital, UPEC, Créteil, France (O.W.-B.)
| | - Eric Allaire
- From the CNRS EAC 7054, Centre de Recherches Chirurgicales Dominique Chopin, Faculty of Medicine, Paris-Est Créteil University (UPEC), Créteil, France (S.M., G.F., J.D., E.A., M.G.); and Department of Hematology-Immunology, AP-HP, Henri Mondor Hospital, UPEC, Créteil, France (O.W.-B.)
| | - Marianne Gervais
- From the CNRS EAC 7054, Centre de Recherches Chirurgicales Dominique Chopin, Faculty of Medicine, Paris-Est Créteil University (UPEC), Créteil, France (S.M., G.F., J.D., E.A., M.G.); and Department of Hematology-Immunology, AP-HP, Henri Mondor Hospital, UPEC, Créteil, France (O.W.-B.)
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Mechanical behavior of abdominal aorta aneurysm in rat model treated by cell therapy using mesenchymal stem cells. Biomech Model Mechanobiol 2014; 14:185-94. [DOI: 10.1007/s10237-014-0586-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2013] [Accepted: 04/09/2014] [Indexed: 01/18/2023]
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