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Wang ZY, Cheng J, Wang Y, Yuan HT, Bi SJ, Wang SX, Hou YM, Zhang X, Xu BH, Wang ZY, Zhang Y, Jiang WJ, Chen YG, Zhang MX. Macrophage ILF3 promotes abdominal aortic aneurysm by inducing inflammatory imbalance in male mice. Nat Commun 2024; 15:7249. [PMID: 39179537 PMCID: PMC11344041 DOI: 10.1038/s41467-024-51030-4] [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: 12/03/2023] [Accepted: 07/24/2024] [Indexed: 08/26/2024] Open
Abstract
Imbalance of proinflammatory and anti-inflammatory responses plays a crucial role in the progression of abdominal aortic aneurysms. ILF3, a known modulator of the innate immune response, is involved in cardiovascular diseases. This study aims to investigate the role of ILF3 in abdominal aortic aneurysm formation. Here, we use multi-omics analyzes, transgenic male mice, and multiplex immunohistochemistry to unravel the underlying involvement of ILF3 in abdominal aortic aneurysms. The results show that macrophage ILF3 deficiency attenuates abdominal aortic aneurysm progression, while elevated macrophage ILF3 exacerbates abdominal aortic aneurysm lesions. Mechanistically, we reveal that macrophagic ILF3 increases NF-κB activity by hastening the decay of p105 mRNA, leading to amplified inflammation in macrophages. Meanwhile, ILF3 represses the anti-inflammatory action by inhibiting the Keap1-Nrf2 signaling pathway through facilitating the ILF3/eIF4A1 complex-mediated enhancement of Keap1 translational efficiency. Moreover, Bardoxolone Methyl treatment alleviates the severity of abdominal aortic aneurysm lesions in the context of elevated ILF3 expression. Together, our findings underscore the significance of macrophage ILF3 in abdominal aortic aneurysm development and suggest its potential as a promising therapeutic target for abdominal aortic aneurysms.
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Affiliation(s)
- Zhao-Yang Wang
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, Department of Cardiology, Qilu Hospital of Shandong University, Jinan, China
- Department of Cardiology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - Jie Cheng
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, Department of Cardiology, Qilu Hospital of Shandong University, Jinan, China
| | - Ying Wang
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, Department of Cardiology, Qilu Hospital of Shandong University, Jinan, China
| | - Hai-Tao Yuan
- Department of Cardiology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - Shao-Jie Bi
- Department of Cardiology, the Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Shuang-Xi Wang
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, Department of Cardiology, Qilu Hospital of Shandong University, Jinan, China
| | - Ya-Min Hou
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, Department of Cardiology, Qilu Hospital of Shandong University, Jinan, China
| | - Xu Zhang
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, Department of Cardiology, Qilu Hospital of Shandong University, Jinan, China
| | - Bo-Han Xu
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, Department of Cardiology, Qilu Hospital of Shandong University, Jinan, China
| | - Ze-Ying Wang
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, Department of Cardiology, Qilu Hospital of Shandong University, Jinan, China
| | - Yun Zhang
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, Department of Cardiology, Qilu Hospital of Shandong University, Jinan, China.
| | - Wen-Jian Jiang
- Department of Cardiovascular Surgery, Beijing Anzhen Hospital, Capital Medical University, Beijing, China.
| | - Yu-Guo Chen
- Department of Emergency and Chest Pain Center, Qilu Hospital, Shandong University, Jinan, China.
| | - Ming-Xiang Zhang
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, Department of Cardiology, Qilu Hospital of Shandong University, Jinan, China.
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2
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Brückner A, Brandtner A, Rieck S, Matthey M, Geisen C, Fels B, Stei M, Kusche-Vihrog K, Fleischmann BK, Wenzel D. Site-specific genetic and functional signatures of aortic endothelial cells at aneurysm predilection sites in healthy and AngII ApoE -/- mice. Angiogenesis 2024:10.1007/s10456-024-09933-9. [PMID: 38965173 DOI: 10.1007/s10456-024-09933-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Accepted: 06/16/2024] [Indexed: 07/06/2024]
Abstract
Aortic aneurysm is characterized by a pathological dilation at specific predilection sites of the vessel and potentially results in life-threatening vascular rupture. Herein, we established a modified "Häutchen method" for the local isolation of endothelial cells (ECs) from mouse aorta to analyze their spatial heterogeneity and potential role in site-specific disease development. When we compared ECs from aneurysm predilection sites of healthy mice with adjacent control segments we found regulation of genes related to extracellular matrix remodeling, angiogenesis and inflammation, all pathways playing a critical role in aneurysm development. We also detected enhanced cortical stiffness of the endothelium at these sites. Gene expression of ECs from aneurysms of the AngII ApoE-/- model when compared to sham animals mimicked expression patterns from predilection sites of healthy animals. Thus, this work highlights a striking genetic and functional regional heterogeneity in aortic ECs of healthy mice, which defines the location of aortic aneurysm formation in disease.
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Affiliation(s)
- Alexander Brückner
- Life&Brain Center, Medical Faculty, Institute of Physiology I, University of Bonn, Bonn, Germany
| | - Adrian Brandtner
- Life&Brain Center, Medical Faculty, Institute of Physiology I, University of Bonn, Bonn, Germany
| | - Sarah Rieck
- Life&Brain Center, Medical Faculty, Institute of Physiology I, University of Bonn, Bonn, Germany
| | - Michaela Matthey
- Department of Systems Physiology, Medical Faculty, Institute of Physiology, Ruhr University of Bochum, Universitätsstr. 150, 44801, Bochum, Germany
| | - Caroline Geisen
- Life&Brain Center, Medical Faculty, Institute of Physiology I, University of Bonn, Bonn, Germany
| | - Benedikt Fels
- Institute of Physiology, University of Lübeck, Lübeck, Germany
- DZHK (German Research Centre for Cardiovascular Research), Partner SiteHamburg/Luebeck/Kiel, Luebeck, Germany
| | - Marta Stei
- Heart Center Bonn, Clinic for Internal Medicine II, University Hospital Bonn, Bonn, Germany
| | - Kristina Kusche-Vihrog
- Institute of Physiology, University of Lübeck, Lübeck, Germany
- DZHK (German Research Centre for Cardiovascular Research), Partner SiteHamburg/Luebeck/Kiel, Luebeck, Germany
| | - Bernd K Fleischmann
- Life&Brain Center, Medical Faculty, Institute of Physiology I, University of Bonn, Bonn, Germany
| | - Daniela Wenzel
- Life&Brain Center, Medical Faculty, Institute of Physiology I, University of Bonn, Bonn, Germany.
- Department of Systems Physiology, Medical Faculty, Institute of Physiology, Ruhr University of Bochum, Universitätsstr. 150, 44801, Bochum, Germany.
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3
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Golledge J, Lu HS, Curci JA. Small AAAs: Recommendations for Rodent Model Research for the Identification of Novel Therapeutics. Arterioscler Thromb Vasc Biol 2024; 44:1467-1473. [PMID: 38924435 PMCID: PMC11384288 DOI: 10.1161/atvbaha.124.320823] [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: 03/04/2024] [Accepted: 05/20/2024] [Indexed: 06/28/2024]
Abstract
CLINICAL PROBLEM Most abdominal aortic aneurysms (AAAs) are small with low rupture risk (<1%/y) when diagnosed but slowly expand to ≥55 mm and undergo surgical repair. Patients and clinicians require medications to limit AAA growth and rupture, but drugs effective in animal models have not translated to patients. RECOMMENDATIONS FOR INCREASING TRANSLATION FROM MOUSE MODELS Use models that simulate human AAA tissue pathology, growth patterns, and rupture; focus on the clinically relevant outcomes of growth and rupture; design studies with the rigor required of human clinical trials; monitor AAA growth using reproducible ultrasound; and perform studies in both males and females. SUMMARY OF STRENGTHS AND WEAKNESSES OF MOUSE MODELS The aortic adventitial elastase oral β-aminopropionitrile model has many strengths including simulating human AAA pathology and modeling prolonged aneurysm growth. The Ang II (angiotensin II) model performed less well as it better simulates acute aortic syndrome than AAA. The elastase plus TGFβ (transforming growth factor-β) blocking antibody model displays a high rupture rate, making prolonged monitoring of AAA growth not feasible. The elastase perfusion and calcium chloride models both display limited AAA growth.
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Affiliation(s)
- Jonathan Golledge
- Queensland Research Centre for Peripheral Vascular Disease, College of Medicine and Dentistry, James Cook University, Townsville, Queensland, Australia
- The Department of Vascular and Endovascular Surgery, Townsville University Hospital, Townsville, Queensland, Australia
- The Australian Institute of Tropical Health and Medicine, Townsville, Queensland, Australia
| | - Hong S. Lu
- Saha Cardiovascular Research Center, Department of Physiology, College of Medicine, University of Kentucky, Lexington, Kentucky, United States
| | - John A. Curci
- Department of Vascular Surgery, Vanderbilt Section of Surgical Sciences, Vanderbilt University Medical Center, Nashville, Tennessee, United States
- Section of Vascular Surgery, Department of Surgery, Tennessee Valley Health System, VA Medical Center, Nashville, Tennessee, United States
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4
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Liao M, Zou S, Wu J, Bai J, Liu Y, Zhi K, Qu L. METTL3-mediated m6A modification of NORAD inhibits the ferroptosis of vascular smooth muscle cells to attenuate the aortic dissection progression in an YTHDF2-dependent manner. Mol Cell Biochem 2024:10.1007/s11010-024-04930-4. [PMID: 38383916 DOI: 10.1007/s11010-024-04930-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Accepted: 01/05/2024] [Indexed: 02/23/2024]
Abstract
Ferroptosis of vascular smooth muscle cells (VSMCs) is related to the incidence of aortic dissection (AD). Long non-coding RNA (lncRNA) NORAD plays a crucial role in the progression of various diseases. The present study aimed to investigate the effects of NORAD on the ferroptosis of VSMCs and the molecular mechanisms. The expression of NORAD, HUR, and GPX4 was detected using quantitative real-time PCR (qPCR) or western blot. Ferroptosis was evaluated by detecting lactate dehydrogenase (LDH) activity, lipid reactive oxygen species (ROS), malonaldehyde (MDA) content, L-Glutathione (GSH) level, Fe2+ content, and ferroptosis-related protein levels. The molecular mechanism was assessed using RNA pull-down, RNA-binding protein immunoprecipitation (RIP), and luciferase reporter assay. The histology of aortic tissues was assessed using H&E, elastic Verhoeff-Van Gieson (EVG), and Masson staining assays. The data indicated that NORAD was downregulated in patients with AD and AngII-treated VSMCs. Overexpression of NORAD promoted VSMC growth and inhibited the ferroptosis induced by AngII. Mechanistically, NORAD interacted with HUR, which promoted GPX4 mRNA stability and elevated GPX4 levels. Knockdown of GPX4 abrogated the effects of NORAD on cell growth and ferroptosis of AngII-treated VSMCs. Moreover, METTL3 promoted m6A methylation of NORAD in an YTHDF2-dependent manner. In addition, NORAD attenuated AAD symptoms, incidence, histopathology, inflammation, and ferroptosis in AAD mice. In conclusion, METTL3-mediated NORAD inhibited ferroptosis of VSMCs via the HUR/GPX4 axis and decelerated AAD progression, suggesting that NORAD may be an AD therapeutic target.
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Affiliation(s)
- Mingfang Liao
- Department of Vascular & Endovascular Surgery, Second Affiliated Hospital of Naval Medical University, 415 Fengyang Road, Huangpu District, Shanghai, 200003, China
- School of Medicine, Shanghai University, Shanghai, 200444, China
| | - Sili Zou
- Department of Vascular & Endovascular Surgery, Second Affiliated Hospital of Naval Medical University, 415 Fengyang Road, Huangpu District, Shanghai, 200003, China
| | - Jianjin Wu
- Department of Vascular & Endovascular Surgery, Second Affiliated Hospital of Naval Medical University, 415 Fengyang Road, Huangpu District, Shanghai, 200003, China
| | - Jun Bai
- Department of Vascular & Endovascular Surgery, Second Affiliated Hospital of Naval Medical University, 415 Fengyang Road, Huangpu District, Shanghai, 200003, China
| | - Yandong Liu
- Department of Vascular & Endovascular Surgery, Second Affiliated Hospital of Naval Medical University, 415 Fengyang Road, Huangpu District, Shanghai, 200003, China
| | - Kangkang Zhi
- Department of Vascular & Endovascular Surgery, Second Affiliated Hospital of Naval Medical University, 415 Fengyang Road, Huangpu District, Shanghai, 200003, China
| | - Lefeng Qu
- Department of Vascular & Endovascular Surgery, Second Affiliated Hospital of Naval Medical University, 415 Fengyang Road, Huangpu District, Shanghai, 200003, China.
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5
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Lu L, Jin Y, Tong Y, Xiao L, Hou Y, Liu Z, Dou H. Myeloid-derived suppressor cells promote the formation of abdominal aortic aneurysms through the IL-3-ICOSL-ICOS axis. BBA ADVANCES 2023; 4:100103. [PMID: 37705722 PMCID: PMC10495679 DOI: 10.1016/j.bbadva.2023.100103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/15/2023] Open
Abstract
Th17 cells are powerful inflammation promoters in the pathogenesis of abdominal aortic aneurysms (AAAs). Myeloid-derived suppressor cells (MDSCs) can promote the differentiation of Th17 cells in chronic inflammatory autoimmune injury. Here, we aim to examine whether MDSCs regulate the differentiation of Th17 cells to participate in the development of AAA. We demonstrated an abnormal accumulation of MDSCs in AAA patients, which was positively associated with Th17 cells. We established angiotensin II-induced apolipoprotein E knockout mice and found the impaired immunosuppressive function of M-MDSCs. After systemic injection of anti-Gr-1 antibody in AAA mice to deplete circulating MDSCs, AAA formation and the differentiation of Th17 cells were abolished, and the overexpression of inducible T-cell costimulator (ICOS) on Th17 cells was reversed accordingly. Regulating the expression of ICOS ligand (ICOSL) on MDSCs affects the differentiation of Th17 cells. The adoptive transfer of ICOSLlowMDSCs in AAA mice inhibited the differentiation of Th17 cells and the development of AAA. Meanwhile, rIL-3 promoted the survival and immunosuppressive dysfunction of MDSCs, upregulated ICOSL expression on MDSCs by inhibiting activation of the PI3K/AKT signaling pathway, and regulated MDSCs to promote the differentiation of Th17 cells via the ICOSL-ICOS axis. An increase in serum IL-3, ICOSL+MDSCs, and ICOS+Th17 cells was detected in AAA patients, and IL-3 levels were positively correlated with the proportion of ICOSL+MDSC cells. In conclusion, we uncovered a pivotal role of MDSCs in promoting the differentiation of Th17 cells through the IL-3-ICOSL-ICOS axis during AAA, providing an important theoretical basis for understanding the pathogenesis of AAA.
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Affiliation(s)
- Li Lu
- The State Key Laboratory of Pharmaceutical Biotechnology, Division of Immunology, Medical School, Nanjing University, Nanjing, China
- Jiangsu Key Laboratory of Molecular Medicine, Nanjing, China
| | - Yi Jin
- Department of Vascular Surgery, Nanjing University Medical School Affiliated Nanjing Drum Tower Hospital, Nanjing, China
| | - Yuanhao Tong
- Department of Vascular Surgery, Nanjing University Medical School Affiliated Nanjing Drum Tower Hospital, Nanjing, China
| | - Lun Xiao
- Department of Vascular Surgery, Nanjing University Medical School Affiliated Nanjing Drum Tower Hospital, Nanjing, China
| | - Yayi Hou
- The State Key Laboratory of Pharmaceutical Biotechnology, Division of Immunology, Medical School, Nanjing University, Nanjing, China
- Jiangsu Key Laboratory of Molecular Medicine, Nanjing, China
| | - Zhao Liu
- Department of Vascular Surgery, Nanjing University Medical School Affiliated Nanjing Drum Tower Hospital, Nanjing, China
| | - Huan Dou
- The State Key Laboratory of Pharmaceutical Biotechnology, Division of Immunology, Medical School, Nanjing University, Nanjing, China
- Jiangsu Key Laboratory of Molecular Medicine, Nanjing, China
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6
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Jara ZP, Harford T, Singh KD, Desnoyer R, Kumar A, Srinivasan D, Karnik SS. Distinct Mechanisms of β-Arrestin-Biased Agonist and Blocker of AT1R in Preventing Aortic Aneurysm and Associated Mortality. Hypertension 2023; 80:385-402. [PMID: 36440576 PMCID: PMC9852074 DOI: 10.1161/hypertensionaha.122.19232] [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: 02/19/2022] [Accepted: 11/04/2022] [Indexed: 11/29/2022]
Abstract
BACKGROUND Aortic aneurysm (AA) is a "silent killer" human disease with no effective treatment. Although the therapeutic potential of various pharmacological agents have been evaluated, there are no reports of β-arrestin-biased AT1R (angiotensin-II type-1 receptor) agonist (TRV027) used to prevent the progression of AA. METHODS We tested the hypothesis that TRV027 infusion in AngII (angiotensin II)-induced mouse model of AA prevents AA. High-fat-diet-fed ApoE (apolipoprotein E gene)-null mice were infused with AngII to induce AA and co-infused with TRV027 and a clinically used AT1R blocker Olmesartan to prevent AA. Aortas explanted from different ligand infusion groups were compared with assess different grades of AA or lack of AA. RESULTS AngII produced AA in ≈67% male mice with significant mortality associated with AA rupture. We observed ≈13% mortality due to aortic arch dissection without aneurysm in male mice. AngII-induced AA and mortality was prevented by co-infusion of TRV027 or Olmesartan, but through different mechanisms. In TRV027 co-infused mice aortic wall thickness, elastin content, new DNA, and protein synthesis were higher than untreated and Olmesartan co-infused mice. Co-infusion with both TRV027 and Olmesartan prevented endoplasmic reticulum stress, fibrosis, and vasomotor hyper responsiveness. CONCLUSIONS TRV027-engaged AT1R prevented AA and associated mortality by distinct molecular mechanisms compared with the AT1R blocker, Olmesartan. Developing novel β-arrestin-biased AT1R ligands may yield promising drugs to combat AA.
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Affiliation(s)
- Zaira Palomino Jara
- Cardiovascular and Metabolic Sciences Department, Lerner Research Institute, Cleveland Clinic
| | - Terri Harford
- Cardiovascular and Metabolic Sciences Department, Lerner Research Institute, Cleveland Clinic
| | | | - Russell Desnoyer
- Cardiovascular and Metabolic Sciences Department, Lerner Research Institute, Cleveland Clinic
| | - Avinash Kumar
- Pathobiology Department, Lerner Research Institute, Cleveland Clinic
| | | | - Sadashiva S. Karnik
- Cardiovascular and Metabolic Sciences Department, Lerner Research Institute, Cleveland Clinic
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7
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Weaver LM, Loftin CD, Zhan CG. Development of pharmacotherapies for abdominal aortic aneurysms. Biomed Pharmacother 2022; 153:113340. [PMID: 35780618 PMCID: PMC9514980 DOI: 10.1016/j.biopha.2022.113340] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2022] [Revised: 06/13/2022] [Accepted: 06/24/2022] [Indexed: 11/23/2022] Open
Abstract
The cardiovascular field is still searching for a treatment for abdominal aortic aneurysms (AAA). This inflammatory disease often goes undiagnosed until a late stage and associated rupture has a high mortality rate. No pharmacological treatment options are available. Three hallmark factors of AAA pathology include inflammation, extracellular matrix remodeling, and vascular smooth muscle dysfunction. Here we discuss drugs for AAA treatment that have been studied in clinical trials by examining the drug targets and data present for each drug's ability to regulate the aforementioned three hallmark pathways in AAA progression. Historically, drugs that were examined in interventional clinical trials for treatment of AAA were repurposed therapeutics. Novel treatments (biologics, small-molecule compounds etc.) have not been able to reach the clinic, stalling out in pre-clinical studies. Here we discuss the backgrounds of previous investigational drugs in hopes of better informing future development of potential therapeutics. Overall, the highlighted themes discussed here stress the importance of both centralized anti-inflammatory drug targets and rigor of translatability. Exceedingly few murine studies have examined an intervention-based drug treatment in halting further growth of an established AAA despite interventional treatment being the therapeutic approach taken to treat AAA in a clinical setting. Additionally, data suggest that a potentially successful drug target may be a central inflammatory biomarker. Specifically, one that can effectively modulate all three hallmark factors of AAA formation, not just inflammation. It is suggested that inhibiting PGE2 formation with an mPGES-1 inhibitor is a leading drug target for AAA treatment to this end.
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Affiliation(s)
- Lauren M Weaver
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky, 789 South Limestone Street, Lexington, KY 40536, USA.
| | - Charles D Loftin
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky, 789 South Limestone Street, Lexington, KY 40536, USA.
| | - Chang-Guo Zhan
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky, 789 South Limestone Street, Lexington, KY 40536, USA; Molecular Modeling and Biopharmaceutical Center, College of Pharmacy, University of Kentucky, 789 South Limestone Street, Lexington, KY 40536, USA.
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8
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Lindeman JH. Modest but impactful: Commentary on immunosuppressive drugs for nontransplant comorbidities are not associated with abdominal aortic aneurysm growth. JVS Vasc Sci 2022; 3:314-315. [PMID: 36643688 PMCID: PMC9834428 DOI: 10.1016/j.jvssci.2022.07.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Affiliation(s)
- Jan H. Lindeman
- Department of Surgery, Leiden University Medical Center, Leiden, The Netherlands
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9
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Imaging Techniques for Aortic Aneurysms and Dissections in Mice: Comparisons of Ex Vivo, In Situ, and Ultrasound Approaches. Biomolecules 2022; 12:biom12020339. [PMID: 35204838 PMCID: PMC8869425 DOI: 10.3390/biom12020339] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 02/14/2022] [Accepted: 02/16/2022] [Indexed: 01/04/2023] Open
Abstract
Aortic aneurysms and dissections are life-threatening conditions that have a high risk for lethal bleeding and organ malperfusion. Many studies have investigated the molecular basis of these diseases using mouse models. In mice, ex vivo, in situ, and ultrasound imaging are major approaches to evaluate aortic diameters, a common parameter to determine the severity of aortic aneurysms. However, accurate evaluations of aortic dimensions by these imaging approaches could be challenging due to pathological features of aortic aneurysms. Currently, there is no standardized mode to assess aortic dissections in mice. It is important to understand the characteristics of each approach for reliable evaluation of aortic dilatations. In this review, we summarize imaging techniques used for aortic visualization in recent mouse studies and discuss their pros and cons. We also provide suggestions to facilitate the visualization of mouse aortas.
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10
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He C, Jiang B, Wang M, Ren P, Murtada SI, Caulk AW, Li G, Qin L, Assi R, Lovoulos CJ, Schwartz MA, Humphrey JD, Tellides G. mTOR inhibition prevents angiotensin II-induced aortic rupture and pseudoaneurysm but promotes dissection in Apoe-deficient mice. JCI Insight 2022; 7:155815. [PMID: 35132962 PMCID: PMC8855820 DOI: 10.1172/jci.insight.155815] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Accepted: 12/23/2021] [Indexed: 01/04/2023] Open
Abstract
Aortic dissection and rupture are triggered by decreased vascular wall strength and/or increased mechanical loads. We investigated the role of mTOR signaling in aortopathy using a well-described model of angiotensin II–induced dissection, aneurysm, or rupture of the suprarenal abdominal aorta in Apoe-deficient mice. Although not widely appreciated, nonlethal hemorrhagic lesions present as pseudoaneurysms without significant dissection in this model. Angiotensin II–induced aortic tears result in free rupture, contained rupture with subadventitial hematoma (forming pseudoaneurysms), dilatation, or healing, while the media invariably thickens regardless of mural tears. Medial thickening results from smooth muscle cell hypertrophy and extracellular matrix accumulation, including matricellular proteins. Angiotensin II activates mTOR signaling in vascular wall cells, and inhibition of mTOR signaling by rapamycin prevents aortic rupture but promotes dissection. Decreased aortic rupture correlates with decreased inflammation and metalloproteinase expression, whereas extensive dissection correlates with induction of matricellular proteins that modulate adhesion of vascular cells. Thus, mTOR activation in vascular wall cells determines whether aortic tears progress to dissection or rupture. Previous mechanistic studies of aortic aneurysm and dissection by angiotensin II in Apoe-deficient mice should be reinterpreted as clinically relevant to pseudoaneurysms, and mTOR inhibition for aortic disease should be explored with caution.
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Affiliation(s)
- Changshun He
- Department of Surgery (Cardiac), Yale School of Medicine, New Haven, Connecticut, USA
| | - Bo Jiang
- Department of Surgery (Cardiac), Yale School of Medicine, New Haven, Connecticut, USA
| | - Mo Wang
- Department of Surgery (Cardiac), Yale School of Medicine, New Haven, Connecticut, USA
| | - Pengwei Ren
- Department of Surgery (Cardiac), Yale School of Medicine, New Haven, Connecticut, USA
| | - Sae-Il Murtada
- Department of Biomedical Engineering, Yale School of Engineering and Applied Science, New Haven, Connecticut, USA
| | - Alexander W Caulk
- Department of Biomedical Engineering, Yale School of Engineering and Applied Science, New Haven, Connecticut, USA
| | - Guangxin Li
- Department of Surgery (Cardiac), Yale School of Medicine, New Haven, Connecticut, USA
| | - Lingfeng Qin
- Department of Surgery (Cardiac), Yale School of Medicine, New Haven, Connecticut, USA
| | - Roland Assi
- Department of Surgery (Cardiac), Yale School of Medicine, New Haven, Connecticut, USA.,Vascular Biology and Therapeutics Program, Yale School of Medicine, New Haven, Connecticut, USA.,Veterans Affairs Connecticut Healthcare System, West Haven, Connecticut, USA
| | - Constantinos J Lovoulos
- Veterans Affairs Connecticut Healthcare System, West Haven, Connecticut, USA.,Department of Surgery, Frank H. Netter MD School of Medicine, Quinnipiac University, North Haven, Connecticut, USA
| | - Martin A Schwartz
- Department of Medicine (Cardiology).,Department of Cell Biology, and.,Yale Cardiovascular Research Center, Yale School of Medicine, New Haven, Connecticut, USA
| | - Jay D Humphrey
- Department of Biomedical Engineering, Yale School of Engineering and Applied Science, New Haven, Connecticut, USA.,Vascular Biology and Therapeutics Program, Yale School of Medicine, New Haven, Connecticut, USA
| | - George Tellides
- Department of Surgery (Cardiac), Yale School of Medicine, New Haven, Connecticut, USA.,Vascular Biology and Therapeutics Program, Yale School of Medicine, New Haven, Connecticut, USA.,Veterans Affairs Connecticut Healthcare System, West Haven, Connecticut, USA
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11
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Berman AG, Romary DJ, Kerr KE, Gorazd NE, Wigand MM, Patnaik SS, Finol EA, Cox AD, Goergen CJ. Experimental aortic aneurysm severity and growth depend on topical elastase concentration and lysyl oxidase inhibition. Sci Rep 2022; 12:99. [PMID: 34997075 PMCID: PMC8742076 DOI: 10.1038/s41598-021-04089-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2021] [Accepted: 12/15/2021] [Indexed: 11/23/2022] Open
Abstract
Abdominal aortic aneurysm (AAA) formation and expansion is highly complex and multifactorial, and the improvement of animal models is an important step to enhance our understanding of AAA pathophysiology. In this study, we explore our ability to influence aneurysm growth in a topical elastase plus β-Aminopropionitrile (BAPN) mouse model by varying elastase concentration and by altering the cross-linking capability of the tissue. To do so, we assess both chronic and acute effects of elastase concentration using volumetric ultrasound. Our results suggest that the applied elastase concentration affects initial elastin degradation, as well as long-term vessel expansion. Additionally, we assessed the effects of BAPN by (1) removing it to restore the cross-linking capability of tissue after aneurysm formation and (2) adding it to animals with stable aneurysms to interrupt cross-linking. These results demonstrate that, even after aneurysm formation, lysyl oxidase inhibition remains necessary for continued expansion. Removing BAPN reduces the aneurysm growth rate to near zero, resulting in a stable aneurysm. In contrast, adding BAPN causes a stable aneurysm to expand. Altogether, these results demonstrate the ability of elastase concentration and BAPN to modulate aneurysm growth rate and severity. The findings open several new areas of investigation in a murine model that mimics many aspects of human AAA.
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Affiliation(s)
- Alycia G Berman
- Weldon School of Biomedical Engineering, Purdue University, 206 S. Martin Jischke Drive, West Lafayette, IN, 47907, USA
| | - Daniel J Romary
- Weldon School of Biomedical Engineering, Purdue University, 206 S. Martin Jischke Drive, West Lafayette, IN, 47907, USA
| | - Katherine E Kerr
- Weldon School of Biomedical Engineering, Purdue University, 206 S. Martin Jischke Drive, West Lafayette, IN, 47907, USA
| | - Natalyn E Gorazd
- Weldon School of Biomedical Engineering, Purdue University, 206 S. Martin Jischke Drive, West Lafayette, IN, 47907, USA
| | - Morgan M Wigand
- Weldon School of Biomedical Engineering, Purdue University, 206 S. Martin Jischke Drive, West Lafayette, IN, 47907, USA
| | - Sourav S Patnaik
- Department of Mechanical Engineering, University of Texas at San Antonio, San Antonio, TX, USA
| | - Ender A Finol
- Department of Mechanical Engineering, University of Texas at San Antonio, San Antonio, TX, USA
| | - Abigail D Cox
- Department of Comparative Pathobiology, Purdue University, West Lafayette, IN, USA
| | - Craig J Goergen
- Weldon School of Biomedical Engineering, Purdue University, 206 S. Martin Jischke Drive, West Lafayette, IN, 47907, USA.
- Purdue Center for Cancer Research, Purdue University, West Lafayette, IN, USA.
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12
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Rodrigues-Díez Raul R, Tejera-Muñoz A, Esteban V, Steffensen Lasse B, Rodrigues-Díez R, Orejudo M, Rayego-Mateos S, Falke Lucas L, Cannata-Ortiz P, Ortiz A, Egido J, Mallat Z, Briones Ana M, Bajo Maria A, Goldschmeding R, Ruiz-Ortega M. CCN2 (Cellular Communication Network Factor 2) Deletion Alters Vascular Integrity and Function Predisposing to Aneurysm Formation. Hypertension 2021; 79:e42-e55. [DOI: 10.1161/hypertensionaha.121.18201] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background:
CCN2 (cellular communication network factor 2) is a matricellular protein involved in cell communication and microenvironmental signaling responses. CCN2 is known to be overexpressed in several cardiovascular diseases, but its role is not completely understood.
Methods:
Here, CCN2 involvement in aortic wall homeostasis and response to vascular injury was investigated in inducible
Ccn2
-deficient mice, with induction of vascular damage by infusion of Ang II (angiotensin II; 15 days), which is known to upregulate CCN2 expression in the aorta.
Results:
Ang II infusion in CCN2-silenced mice lead to 60% mortality within 10 days due to rapid development and rupture of aortic aneurysms, as evidenced by magnetic resonance imaging, echography, and histological examination.
Ccn2
deletion decreased systolic blood pressure and caused aortic structural and functional changes, including elastin layer disruption, smooth muscle cell alterations, augmented distensibility, and increased metalloproteinase activity, which were aggravated by Ang II administration. Gene ontology analysis of RNA sequencing data identified aldosterone biosynthesis as one of the most enriched terms in CCN2-deficient aortas. Consistently, treatment with the mineralocorticoid receptor antagonist spironolactone before and during Ang II infusion reduced aneurysm formation and mortality, underscoring the importance of the aldosterone pathway in Ang II–induced aorta pathology.
Conclusions:
CCN2 is critically involved in the functional and structural homeostasis of the aorta and in maintenance of its integrity under Ang II–induced stress, at least, in part, by disruption of the aldosterone pathway. Thus, this study opens new avenues to future studies in disorders associated to vascular pathologies.
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Affiliation(s)
- R. Rodrigues-Díez Raul
- Molecular and Cellular Biology in Renal and Vascular Pathology, IIS-Fundación Jiménez Díaz-Universidad Autónoma Madrid, Spain (R.R.-D.R., A.T.-M., M.O., S.R.-M., M.R.-O.)
- Red de Investigación Renal, Instituto de Salud Carlos III, Madrid, Spain (R.R.-D.R., M.O., S.R.-M., P.C.-O., A.O., A.B.M., M.R.-O.)
- Department of Pharmacology, UAM, Instituto de Investigación-Hospital Universitario La Paz, IdiPaz, Ciber Cardiovascular, Madrid, Spain (R.R.-D., M.B.A.)
| | - Antonio Tejera-Muñoz
- Molecular and Cellular Biology in Renal and Vascular Pathology, IIS-Fundación Jiménez Díaz-Universidad Autónoma Madrid, Spain (R.R.-D.R., A.T.-M., M.O., S.R.-M., M.R.-O.)
| | - Vanesa Esteban
- Department of Allergy and Immunology, FIIS-Fundación Jiménez Díaz, UAM, Asma, Reacciones Adversas y Alérgicas Network. Madrid, Spain (V.E.)
| | - B. Steffensen Lasse
- Unit of Cardiovascular and Renal Research, Department of Molecular Medicine, University of Southern Denmark, Odense (B.S.L.)
| | | | - Macarena Orejudo
- Molecular and Cellular Biology in Renal and Vascular Pathology, IIS-Fundación Jiménez Díaz-Universidad Autónoma Madrid, Spain (R.R.-D.R., A.T.-M., M.O., S.R.-M., M.R.-O.)
- Red de Investigación Renal, Instituto de Salud Carlos III, Madrid, Spain (R.R.-D.R., M.O., S.R.-M., P.C.-O., A.O., A.B.M., M.R.-O.)
| | - Sandra Rayego-Mateos
- Molecular and Cellular Biology in Renal and Vascular Pathology, IIS-Fundación Jiménez Díaz-Universidad Autónoma Madrid, Spain (R.R.-D.R., A.T.-M., M.O., S.R.-M., M.R.-O.)
- Red de Investigación Renal, Instituto de Salud Carlos III, Madrid, Spain (R.R.-D.R., M.O., S.R.-M., P.C.-O., A.O., A.B.M., M.R.-O.)
| | - L. Falke Lucas
- Department of Pathology, University Medical Center Utrecht, the Netherlands (L.F.L.)
| | - Pablo Cannata-Ortiz
- Red de Investigación Renal, Instituto de Salud Carlos III, Madrid, Spain (R.R.-D.R., M.O., S.R.-M., P.C.-O., A.O., A.B.M., M.R.-O.)
- IIS-Fundación Jiménez Díaz-Universidad Autónoma Madrid, Spain (P.C.-O., A.O., J.E., R.G.)
| | - Alberto Ortiz
- Red de Investigación Renal, Instituto de Salud Carlos III, Madrid, Spain (R.R.-D.R., M.O., S.R.-M., P.C.-O., A.O., A.B.M., M.R.-O.)
- IIS-Fundación Jiménez Díaz-Universidad Autónoma Madrid, Spain (P.C.-O., A.O., J.E., R.G.)
| | - Jesus Egido
- IIS-Fundación Jiménez Díaz-Universidad Autónoma Madrid, Spain (P.C.-O., A.O., J.E., R.G.)
- Spanish Biomedical Research Centre in Diabetes and Associated Metabolic Disorders (CIBERDEM), Spain (J.E.)
| | - Ziad Mallat
- Department of Medicine, University of Cambridge, United Kingdom (Z.M.)
- Institut National de la Sante et de la Recherche Medicale, France, Cambridge, United Kingdom (Z.M.)
| | - M. Briones Ana
- Department of Pharmacology, UAM, Instituto de Investigación-Hospital Universitario La Paz, IdiPaz, Ciber Cardiovascular, Madrid, Spain (R.R.-D., M.B.A.)
| | - Auxiliadora Bajo Maria
- Red de Investigación Renal, Instituto de Salud Carlos III, Madrid, Spain (R.R.-D.R., M.O., S.R.-M., P.C.-O., A.O., A.B.M., M.R.-O.)
- Department of Nephrology, Instituto de Investigación-Hospital Universitario La Paz, Madrid, Spain (A.B.M.)
| | - Roel Goldschmeding
- IIS-Fundación Jiménez Díaz-Universidad Autónoma Madrid, Spain (P.C.-O., A.O., J.E., R.G.)
| | - Marta Ruiz-Ortega
- Molecular and Cellular Biology in Renal and Vascular Pathology, IIS-Fundación Jiménez Díaz-Universidad Autónoma Madrid, Spain (R.R.-D.R., A.T.-M., M.O., S.R.-M., M.R.-O.)
- Red de Investigación Renal, Instituto de Salud Carlos III, Madrid, Spain (R.R.-D.R., M.O., S.R.-M., P.C.-O., A.O., A.B.M., M.R.-O.)
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13
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Busch A, Bleichert S, Ibrahim N, Wortmann M, Eckstein HH, Brostjan C, Wagenhäuser MU, Goergen CJ, Maegdefessel L. Translating mouse models of abdominal aortic aneurysm to the translational needs of vascular surgery. JVS Vasc Sci 2021; 2:219-234. [PMID: 34778850 PMCID: PMC8577080 DOI: 10.1016/j.jvssci.2021.01.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Accepted: 01/04/2021] [Indexed: 01/03/2023] Open
Abstract
Introduction Abdominal aortic aneurysm (AAA) is a condition that has considerable socioeconomic impact and an eventual rupture is associated with high mortality and morbidity. Despite decades of research, surgical repair remains the treatment of choice and no medical therapy is currently available. Animal models and, in particular, murine models, of AAA are a vital tool for experimental in vivo research. However, each of the different models has individual limitations and provide only partial mimicry of human disease. This narrative review addresses the translational potential of the available mouse models, highlighting unanswered questions from a clinical perspective. It is based on a thorough presentation of the available literature and more than a decade of personal experience, with most of the available models in experimental and translational AAA research. Results From all the models published, only the four inducible models, namely the angiotensin II model (AngII), the porcine pancreatic elastase perfusion model (PPE), the external periadventitial elastase application (ePPE), and the CaCl2 model have been widely used by different independent research groups. Although the angiotensin II model provides features of dissection and aneurysm formation, the PPE model shows reliable features of human AAA, especially beyond day 7 after induction, but remains technically challenging. The translational value of ePPE as a model and the combination with β-aminopropionitrile to induce rupture and intraluminal thrombus formation is promising, but warrants further mechanistic insights. Finally, the external CaCl2 application is known to produce inflammatory vascular wall thickening. Unmet translational research questions include the origin of AAA development, monitoring aneurysm growth, gender issues, and novel surgical therapies as well as novel nonsurgical therapies. Conclusion New imaging techniques, experimental therapeutic alternatives, and endovascular treatment options provide a plethora of research topics to strengthen the individual features of currently available mouse models, creating the possibility of shedding new light on translational research questions.
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Affiliation(s)
- Albert Busch
- Department for Vascular and Endovascular Surgery, Technical University Munich, Munich, Germany.,Deutsches Zentrum für Herz-Kreislaufforschung (DZHK), Berlin, Germany
| | - Sonja Bleichert
- Division of Vascular Surgery and Surgical Research Laboratories, Department of Surgery, Medical University of Vienna, Vienna General Hospital, Vienna, Austria
| | - Nahla Ibrahim
- Division of Vascular Surgery and Surgical Research Laboratories, Department of Surgery, Medical University of Vienna, Vienna General Hospital, Vienna, Austria
| | - Markus Wortmann
- Department of Vascular and Endovascular Surgery, Universitaetsklinik Heidelberg, Heidelberg, Germany
| | - Hans-Henning Eckstein
- Department for Vascular and Endovascular Surgery, Technical University Munich, Munich, Germany
| | - Christine Brostjan
- Division of Vascular Surgery and Surgical Research Laboratories, Department of Surgery, Medical University of Vienna, Vienna General Hospital, Vienna, Austria
| | - Markus U Wagenhäuser
- Department of Vascular and Endovascular Surgery, Heinrich-Heine-University Medical Center Düsseldorf, Düsseldorf, Germany
| | - Craig J Goergen
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, Ind
| | - Lars Maegdefessel
- Department for Vascular and Endovascular Surgery, Technical University Munich, Munich, Germany.,Deutsches Zentrum für Herz-Kreislaufforschung (DZHK), Berlin, Germany
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14
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Li H, Xu H, Wen H, Wang H, Zhao R, Sun Y, Bai C, Ping J, Song L, Luo M, Chen J. Lysyl hydroxylase 1 (LH1) deficiency promotes angiotensin II (Ang II)-induced dissecting abdominal aortic aneurysm. Theranostics 2021; 11:9587-9604. [PMID: 34646388 PMCID: PMC8490513 DOI: 10.7150/thno.65277] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Accepted: 09/03/2021] [Indexed: 12/13/2022] Open
Abstract
Rationale: The progressive disruption of extracellular matrix (ECM) proteins, particularly early elastin fragmentation followed by abnormalities in collagen fibril organization, are key pathological processes that contribute to dissecting abdominal aortic aneurysm (AAA) pathogenesis. Lysyl hydroxylase 1 (LH1) is essential for type I/III collagen intermolecular crosslinking and stabilization. However, its function in dissecting AAA has not been explored. Here, we investigated whether LH1 is significantly implicated in dissecting AAA progression and therapeutic intervention. Methods and Results: Sixteen-week-old male LH1-deficient and wild-type (WT) mice on the C57Bl/6NCrl background were infused with angiotensin II (Ang II, 1000 ng/kg per minute) via subcutaneously implanted osmotic pumps for 4 weeks. Ang II increased LH1 levels in the abdominal aortas of WT mice, whereas mice lacking LH1 developed dissecting AAA. To evaluate the related mechanism, we performed whole-transcriptomic analysis, which demonstrated that LH1 deficiency aggravated gene transcription alterations; in particular, the expression of thrombospondin-1 was markedly upregulated in the aortas of LH1-deficient mice. Furthermore, targeting thrombospondin-1 with TAX2 strongly inhibited the proinflammatory process, matrix metalloproteinase (MMP) activity and vascular smooth muscle cells (VSMCs) apoptosis, ultimately decreasing the incidence of dissecting AAA. Restoration of LH1 protein expression in LH1-deficient mice by intraperitoneal injection of an adeno-associated virus normalized thrombospondin-1 levels, subsequently alleviating dissecting AAA formation and preserving aortic structure and function. Consistently, in human AAA specimens, decreased LH1 expression was associated with increased thrombospondin-1 levels. Conclusions: LH1 deficiency contributes to dissecting AAA pathogenesis, at least in part, by upregulating thrombospondin-1 expression, which subsequently enables proinflammatory processes, MMP activation and VSMCs apoptosis. Our study provides evidence that LH1 is a potential critical therapeutic target for AAA.
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Affiliation(s)
- Hao Li
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - Haochen Xu
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - Hongyan Wen
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - Hongyue Wang
- Department of Pathology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - Ranxu Zhao
- Department of Pathology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - Yingying Sun
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - Congxia Bai
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - Jiedan Ping
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - Li Song
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - Mingyao Luo
- State Key Laboratory of Cardiovascular Disease, Center of Vascular Surgery, Fuwai Hospital, National Center for Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
- Department of Vascular Surgery, Fuwai Yunnan Cardiovascular Hospital, Affiliated Cardiovascular Hospital of Kunming Medical University, Kunming, 650102, China
| | - Jingzhou Chen
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
- National Health Commission Key Laboratory of Cardiovascular Regenerative Medicine, Fuwai Central-China Hospital, Central-China Branch of National Center for Cardiovascular Diseases, Zhengzhou 450046, China
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15
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Zhang M, Sui W, Cheng C, Xue F, Tian Z, Cheng J, Zhang J, Zhang T, Zhang J, Wang W, Xiong W, Hao P, Ma J, Xu X, Wang S, Sun S, Zhang M, Zhang Y, Zhang C. Erythropoietin promotes abdominal aortic aneurysms in mice through angiogenesis and inflammatory infiltration. Sci Transl Med 2021; 13:13/603/eaaz4959. [PMID: 34290056 DOI: 10.1126/scitranslmed.aaz4959] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Revised: 11/04/2020] [Accepted: 06/30/2021] [Indexed: 12/19/2022]
Abstract
Abdominal aortic aneurysm (AAA) is a potentially fatal vascular disease, but the underlying mechanisms remain unknown. Here, we tested the hypothesis that erythropoietin (EPO) may promote the formation of AAA. We found that EPO dose-dependently promoted the formation of AAA in both Apoe -/- (66.7%) and wild-type (WT) (60%) mice receiving a high dose of EPO. EPO monoclonal antibodies given to Apoe -/- mice receiving angiotensin II (AngII) stimulation resulted in a markedly lower incidence of AAA (from 86.7 to 20%, P < 0.001), and EPO receptor (EPOR) knockdown in Epor +/- Apoe -/- mice substantially reduced the incidence of AAA compared to Apoe -/- mice after AngII stimulation (from 86.7 to 45.5%, P < 0.05), further supporting the finding that EPO is a contributor to AAA formation. EPO-induced AAA resulted in increased microvessels, phagocyte infiltration, and matrix metalloproteinase secretion, as well as reduced collagen and smooth muscle cells (SMCs). Experiments in vitro and ex vivo demonstrated that EPO induced proliferation, migration, and tube formation of endothelial cells via the JAK2/STAT5 signaling pathway. In humans, serum EPO concentrations were higher in patients with AAA than in healthy individuals and correlated with the size of the AAA, suggesting a potential link between EPO and the severity of AAA in humans. In conclusion, we found that EPO promotes the formation of AAA in both Apoe -/- and WT mice by enhancing angiogenesis, inflammation, collagen degradation, and apoptosis of SMCs and that EPO/EPOR signaling is essential for AngII-induced AAA. The association between EPO and AAA in humans warrants further study.
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Affiliation(s)
- Meng Zhang
- Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250012, Shandong, China
| | - Wenhai Sui
- Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250012, Shandong, China
| | - Cheng Cheng
- Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250012, Shandong, China
| | - Fei Xue
- Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250012, Shandong, China
| | - Zhenyu Tian
- Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250012, Shandong, China
| | - Jing Cheng
- Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250012, Shandong, China
| | - Jie Zhang
- Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250012, Shandong, China
| | - Tao Zhang
- Department of Vascular Surgery, First Affiliated Hospital of Shandong First Medical University, Jinan 250013, Shandong, China
| | - Jianlin Zhang
- Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250012, Shandong, China
| | - Weiwei Wang
- Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250012, Shandong, China
| | - Wenjing Xiong
- Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250012, Shandong, China
| | - Panpan Hao
- Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250012, Shandong, China
| | - Jing Ma
- Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250012, Shandong, China
| | - Xingli Xu
- Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250012, Shandong, China
| | - Shuangxi Wang
- Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250012, Shandong, China
| | - Shangwen Sun
- Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250012, Shandong, China
| | - Meng Zhang
- Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250012, Shandong, China.
| | - Yun Zhang
- Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250012, Shandong, China.
| | - Cheng Zhang
- Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250012, Shandong, China.
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16
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Cai L, Tang H, Zhou M, Ding Y, Li X, Shi Z. Artesunate Attenuated the Progression of Abdominal Aortic Aneurysm in a Mouse Model. J Surg Res 2021; 267:404-413. [PMID: 34225053 DOI: 10.1016/j.jss.2021.05.001] [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: 10/04/2020] [Revised: 03/12/2021] [Accepted: 05/02/2021] [Indexed: 01/02/2023]
Abstract
BACKGROUND The inflammatory reaction is an important mechanism of pathogenesis of abdominal aortic aneurysm (AAA). Artesunate (AS) has been found to have anti-inflammatory effects in cardiovascular disease. The purpose of this study was to investigate whether AS could inhibit the development of AAA. MATERIALS AND METHODS AngII infused ApoE (-/-) male mice were selected as AAA model. Mice were spilt into three groups, the experimental control group (AngII), the AS treatment group (AngII + AS) and the negative control group (Vehicle) with 14 in each group. Daily administration of AS (100 mg/kg/d) or vehicle performed 3 day before the perfusion. At the end of the 28-day experiment, animal ultrasound and electronic digital caliper were used to measure the diameter of abdominal aorta. Histologic assays were performed to observe the microstructure of the aorta wall. Immunofluorescence staining was performed to detect inflammatory cells, as well as the levels of matrix metalloproteinases (MMPs). The transcription of cytokines and adhesion molecules were investigated by real-time fluorescence quantitative PCR (qPCR). Western blotting was performed to determine whether the NF-κB pathway is involved in the mechanism. RESULTS While AS failed to reduce the incidence of AAA, AS effectively reduced the diameter of AAA independently of blood pressure effects. Immunofluorescence detection showed that AS effectively reduced the levels of CD45+ cells and MAC3+ macrophages as well as MMP-2 and MMP-9. qPCR revealed that AS reduced mRNA transcription levels of MMP-2, MMP-9, the cytokine IL-1β, TNF-α, adhesion molecules ICAM-1, VCAM-1. AS decreased the levels of NF-κB signaling pathway in aorta. CONCLUSIONS AS can attenuate the development of AAA in mice. The possible mechanism is anti-inflammation.
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Affiliation(s)
- Liang Cai
- Department of Vascular Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Hanfei Tang
- Department of Vascular Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Min Zhou
- Department of Vascular Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Yong Ding
- Department of Vascular Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Xu Li
- Department of Vascular Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Zhenyu Shi
- Department of Vascular Surgery, Zhongshan Hospital, Fudan University, Shanghai, China..
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17
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Zhu S, Zhu K, Li J, Lai H, Wang C. Nano-Biomaterials for the Delivery of Therapeutic and Monitoring Cues for Aortic Diseases. Front Bioeng Biotechnol 2020; 8:583879. [PMID: 33224934 PMCID: PMC7674648 DOI: 10.3389/fbioe.2020.583879] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Accepted: 10/07/2020] [Indexed: 01/09/2023] Open
Abstract
The aorta is the largest artery in the body, so any diseases or conditions which could cause damage to the aorta would put patients at considerable and life-threatening risk. In the management of aortic diseases, the major treatments include drug therapy, endovascular treatment, and surgical treatment, which are of great danger or with a poor prognosis. The delivery of nano-biomaterials provides a potential development trend and an emerging field where we could monitor patients’ conditions and responses to the nanotherapeutics. One of the putative applications of nanotechnology is ultrasensitive monitoring of cardiovascular markers by detecting and identifying aneurysms. Moreover, the use of nanosystems for targeted drug delivery can minimize the systemic side effects and enhance drug positioning and efficacy compared to conventional drug therapies. This review shows some examples of utilizing nano-biomaterials in in vitro organ and cell culture experiments and explains some developing technologies in delivering and monitoring regenerative therapeutics.
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Affiliation(s)
- Shichao Zhu
- Department of Cardiac Surgery, Zhongshan Hospital, Fudan University, Shanghai, China.,Shanghai Institute of Cardiovascular Diseases, Shanghai, China
| | - Kai Zhu
- Department of Cardiac Surgery, Zhongshan Hospital, Fudan University, Shanghai, China.,Shanghai Institute of Cardiovascular Diseases, Shanghai, China
| | - Jun Li
- Department of Cardiac Surgery, Zhongshan Hospital, Fudan University, Shanghai, China.,Shanghai Institute of Cardiovascular Diseases, Shanghai, China
| | - Hao Lai
- Department of Cardiac Surgery, Zhongshan Hospital, Fudan University, Shanghai, China.,Shanghai Institute of Cardiovascular Diseases, Shanghai, China
| | - Chunsheng Wang
- Department of Cardiac Surgery, Zhongshan Hospital, Fudan University, Shanghai, China.,Shanghai Institute of Cardiovascular Diseases, Shanghai, China
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Depletion of CD11c+ dendritic cells in apolipoprotein E-deficient mice limits angiotensin II-induced abdominal aortic aneurysm formation and growth. Clin Sci (Lond) 2020; 133:2203-2215. [PMID: 31696215 DOI: 10.1042/cs20190924] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 10/18/2019] [Accepted: 10/21/2019] [Indexed: 01/30/2023]
Abstract
OBJECTIVE The role of chronic inflammation in abdominal aortic aneurysm (AAA) is controversial. CD11c+ antigen-presenting cells (APCs) (dendritic cells (DCs)) have been reported in human AAA samples but their role is unclear. The effect of conditional depletion of CD11c+ cells on experimental AAA was investigated in the angiotensin II (AngII)-infused apolipoprotein E-deficient (ApoE-/-) mouse model. APPROACH CD11c-diphtheria toxin (DT or D.tox) receptor (DTR), ovalbumin (OVA) fragment aa 140-386, and enhanced green fluorescent protein (eGFP)-ApoE-/- (CD11c.DOG.ApoE-/-) mice were generated and CD11c+ cell depletion achieved with D.tox injections (8 ng/g body weight, i.p., every-other-day). AAA formation and growth were assessed by measurement of supra-renal aortic (SRA) diameter in vivo by serial ultrasound and by morphometry assessment of harvested aortas at the end of the study. RESULTS Depletion of CD11c+ cells by administration of D.tox on alternative days was shown to reduce the maximum diameter of AAAs induced by 28 days AngII infusion compared with controls (D.tox, 1.58 ± 0.03 mm vs Vehicle control, 1.81 ± 0.06 mm, P<0.001). CD11c+ depletion commencing after AAA establishment by 14 days of AngII infusion, was also shown to lead to smaller AAAs than controls after a further 14 days (D.tox, 1.54 ± 0.04 mm vs Vehicle control, 1.80 ± 0.03 mm, P<0.001). Flow cytometry revealed significantly lower numbers of circulating CD44hi CD62Llo effector CD4 T cells, CD44hi CD62Llo effector CD8 T cells and B220+ B cells in CD11c+ cell-depleted mice versus controls. CD11c+ depletion attenuated SRA matrix degradation indicated by decreased neutrophil elastase activity (P=0.014), lower elastin degradation score (P=0.012) and higher collagen content (P=0.002). CONCLUSION CD11c+ cell-depletion inhibited experimental AAA development and growth associated with down-regulation of circulating effector T cells and attenuated matrix degradation. The findings suggest involvement of autoreactive immune cells in AAA pathogenesis.
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Li Z, Zhao Z, Cai Z, Sun Y, Li L, Yao F, Yang L, Zhou Y, Zhu H, Fu Y, Wang L, Fang W, Chen Y, Kong W. Runx2 (Runt-Related Transcription Factor 2)-Mediated Microcalcification Is a Novel Pathological Characteristic and Potential Mediator of Abdominal Aortic Aneurysm. Arterioscler Thromb Vasc Biol 2020; 40:1352-1369. [PMID: 32212850 DOI: 10.1161/atvbaha.119.314113] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
OBJECTIVE Abdominal aortic aneurysms (AAAs) are highly lethal diseases without effective clinical predictors and therapeutic targets. Vascular microcalcification, as detected by fluorine-18-sodium fluoride, has recently been recognized as a valuable indicator in predicting atherosclerotic plaque rupture and AAA expansion. However, whether vascular microcalcification involved in the pathogenesis of AAA remains elusive. Approach and Results: Microcalcification was analyzed in human aneurysmal aortas histologically and in AngII (angiotensin II)-infused ApoE-/- mouse aortas by fluorine-18-sodium fluoride positron emission tomography and X-ray computed tomography scanning in chronological order in live animals. AAA patients' aortic tissue showed markedly enhanced microcalcification in the aortic media within the area proximal to elastic fiber degradation, compared with non-AAA patients. Enhanced fluorine-18-sodium fluoride uptake preceded significant aortic expansion in mice. Microcalcification-positive mice on day 7 of AngII infusion showed dramatic aortic expansion on subsequent days 14 to 28, whereas microcalcification-negative AngII-infused mice and saline-induced mice did not develop AAA. The application of hydroxyapatite, the main component of microcalcification, aggravated AngII-induced AAA formation in vivo. RNA-sequencing analysis of the suprarenal aortas of 4-day-AngII-infused ApoE-/- mice and bioinformatics analysis with ChIP-Atlas database identified the potential involvement of the osteogenic transcriptional factor Runx2 (runt-related transcription factor 2) in AAA. Consistently, vascular smooth muscle cell-specific Runx2 deficiency markedly repressed AngII-induced AAA formation in the ApoE-/- mice compared with the control littermates. CONCLUSIONS Our studies have revealed microcalcification as a novel pathological characteristic and potential mediator of AAA, and targeting microcalcification may represent a promising strategy for AAA prevention and treatment.
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Affiliation(s)
- Zhiqing Li
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, China (Z.L., Z.C., L.Y., Y.F., W.K.)
| | - Zuoquan Zhao
- Department of Nuclear Medicine (Z.Z., W.F.), Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing
| | - Zeyu Cai
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, China (Z.L., Z.C., L.Y., Y.F., W.K.)
| | - Yong Sun
- Department of Pathology, University of Alabama at Birmingham (Y.S., Y.C.)
| | - Li Li
- Department of Pathology, State Key Laboratory of Cardiovascular Disease (L.L.), Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing
| | - Fang Yao
- State Key Laboratory of Cardiovascular Disease (F.Y., L.W.), Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing
| | - Liu Yang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, China (Z.L., Z.C., L.Y., Y.F., W.K.)
| | - Yuan Zhou
- Department of Biomedical Informatics, School of Basic Medical Sciences, Peking University, Beijing, China (Y.Z.)
| | - Haibo Zhu
- Fuwai Hospital, National Center for Cardiovascular Diseases, and State Key Laboratory for Bioactive Substances and Functions of Natural Medicines, Beijing Key Laboratory of New Drug Mechanisms and Pharmacological Evaluation Study, Institute of Materia Medica (H.Z.), Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing
| | - Yi Fu
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, China (Z.L., Z.C., L.Y., Y.F., W.K.)
| | - Li Wang
- State Key Laboratory of Cardiovascular Disease (F.Y., L.W.), Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing
| | - Wei Fang
- Department of Nuclear Medicine (Z.Z., W.F.), Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing
| | - Yabing Chen
- Department of Pathology, University of Alabama at Birmingham (Y.S., Y.C.)
| | - Wei Kong
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, China (Z.L., Z.C., L.Y., Y.F., W.K.)
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20
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Xue F, Yang J, Cheng J, Sui W, Cheng C, Li H, Zhang M, Zhang J, Xu X, Ma J, Lu L, Xu J, Zhang M, Zhang Y, Zhang C. Angiotensin-(1-7) mitigated angiotensin II-induced abdominal aortic aneurysms in apolipoprotein E-knockout mice. Br J Pharmacol 2020; 177:1719-1734. [PMID: 31658493 DOI: 10.1111/bph.14906] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Revised: 09/19/2019] [Accepted: 10/06/2019] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND AND PURPOSE To test the hypothesis that angiotensin-(1-7) [Ang-(1-7)] may attenuate abdominal aortic aneurysm (AAA) via inhibiting vascular inflammation, extracellular matrix degradation, and smooth muscle cell (SMC) apoptosis, an animal model of AAA was established by angiotensin II (Ang II) infusion to apolipoprotein E-knockout (ApoE-/- ) mice. EXPERIMENTAL APPROACH All mice and cultured SMCs or macrophages were divided into control, Ang II-treated, Ang II + Ang-(1-7)-treated, Ang II + Ang-(1-7) + A779-treated and Ang II + Ang-(1-7) + PD123319-treated groups respectively. In vivo, aortic mechanics and serum lipids were assessed. Ex vivo, AAA were examined by histology, immunohistochemistry and zymography. Cultured cells were analysed by RT-PCR, western blots and TUNEL assays. KEY RESULTS In vivo, Ang-(1-7) reduced the incidence and severity of AAA induced by Ang II infusion, by inhibiting macrophage infiltration, attenuating expression of IL-6, TNF-α, CCL2 and MMP2, and decreasing SMC apoptosis in abdominal aortic tissues. Addition of A779 or PD123319 reversed Ang-(1-7)-mediated beneficial effects on AAA. In vitro, Ang-(1-7) decreased expression of mRNA for IL-6, TNF-α, and CCL2 induced by Ang II in macrophages. In addition, Ang-(1-7) suppressed apoptosis and MMP2 expression and activity in Ang II-treated SMCs. These effects were accompanied by inhibition of the ERK1/2 signalling pathways via Ang-(1-7) stimulation of Mas and AT2 receptors. CONCLUSION AND IMPLICATIONS Ang-(1-7) treatment attenuated Ang II-induced AAA via inhibiting vascular inflammation, extracellular matrix degradation, and SMC apoptosis. Ang-(1-7) may provide a novel and promising approach to the prevention and treatment of AAA.
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Affiliation(s)
- Fei Xue
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese Ministry of Health and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital of Shandong University, Jinan, China
| | - Jianmin Yang
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese Ministry of Health and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital of Shandong University, Jinan, China
| | - Jing Cheng
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese Ministry of Health and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital of Shandong University, Jinan, China
| | - Wenhai Sui
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese Ministry of Health and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital of Shandong University, Jinan, China
| | - Cheng Cheng
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese Ministry of Health and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital of Shandong University, Jinan, China
| | - Hongxuan Li
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese Ministry of Health and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital of Shandong University, Jinan, China
| | - Meng Zhang
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese Ministry of Health and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital of Shandong University, Jinan, China
| | - Jie Zhang
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese Ministry of Health and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital of Shandong University, Jinan, China
| | - Xingli Xu
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese Ministry of Health and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital of Shandong University, Jinan, China
| | - Jing Ma
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese Ministry of Health and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital of Shandong University, Jinan, China
| | - Lin Lu
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese Ministry of Health and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital of Shandong University, Jinan, China
| | - Jinfeng Xu
- Department of Ultrasound, Shenzhen People's Hospital, Shenzhen, China
| | - Meng Zhang
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese Ministry of Health and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital of Shandong University, Jinan, China
| | - Yun Zhang
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese Ministry of Health and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital of Shandong University, Jinan, China
| | - Cheng Zhang
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese Ministry of Health and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital of Shandong University, Jinan, China
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21
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Lu HS, Schmidt AM, Hegele RA, Mackman N, Rader DJ, Weber C, Daugherty A. Reporting Sex and Sex Differences in Preclinical Studies. Arterioscler Thromb Vasc Biol 2019; 38:e171-e184. [PMID: 30354222 DOI: 10.1161/atvbaha.118.311717] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Hong S Lu
- From the Department of Physiology, Saha Cardiovascular Research Center, University of Kentucky, Lexington (H.S.L., A.D.)
| | - Ann Marie Schmidt
- Diabetes Research Program, Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, New York University Langone Medical Center, New York, NY (A.M.S.)
| | - Robert A Hegele
- Department of Medicine and Robarts Research Institute, Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada (R.A.H.)
| | - Nigel Mackman
- Department of Medicine, University of North Carolina at Chapel Hill (N.M.)
| | - Daniel J Rader
- Department of Medicine (D.J.R.), Perelman School of Medicine, University of Pennsylvania, Philadelphia.,Department of Genetics (D.J.R.), Perelman School of Medicine, University of Pennsylvania, Philadelphia
| | - Christian Weber
- Department of Medicine, Institute for Cardiovascular Prevention, Ludwig-Maximilians-Universität, Munich, Germany (C.W.).,German Centre for Cardiovascular Research, Partner Site Munich Heart Alliance, Munich, Germany (C.W.)
| | - Alan Daugherty
- From the Department of Physiology, Saha Cardiovascular Research Center, University of Kentucky, Lexington (H.S.L., A.D.)
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22
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Aslanidou L, Ferraro M, Lovric G, Bersi MR, Humphrey JD, Segers P, Trachet B, Stergiopulos N. Co-localization of microstructural damage and excessive mechanical strain at aortic branches in angiotensin-II-infused mice. Biomech Model Mechanobiol 2019; 19:81-97. [PMID: 31273562 DOI: 10.1007/s10237-019-01197-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Accepted: 06/26/2019] [Indexed: 02/07/2023]
Abstract
Animal models of aortic aneurysm and dissection can enhance our limited understanding of the etiology of these lethal conditions particularly because early-stage longitudinal data are scant in humans. Yet, the pathogenesis of often-studied mouse models and the potential contribution of aortic biomechanics therein remain elusive. In this work, we combined micro-CT and synchrotron-based imaging with computational biomechanics to estimate in vivo aortic strains in the abdominal aorta of angiotensin-II-infused ApoE-deficient mice, which were compared with mouse-specific aortic microstructural damage inferred from histopathology. Targeted histology showed that the 3D distribution of micro-CT contrast agent that had been injected in vivo co-localized with precursor vascular damage in the aortic wall at 3 days of hypertension, with damage predominantly near the ostia of the celiac and superior mesenteric arteries. Computations similarly revealed higher mechanical strain in branching relative to non-branching regions, thus resulting in a positive correlation between high strain and vascular damage in branching segments that included the celiac, superior mesenteric, and right renal arteries. These results suggest a mechanically driven initiation of damage at these locations, which was supported by 3D synchrotron imaging of load-induced ex vivo delaminations of angiotensin-II-infused suprarenal abdominal aortas. That is, the major intramural delamination plane in the ex vivo tested aortas was also near side branches and specifically around the celiac artery. Our findings thus support the hypothesis of an early mechanically mediated formation of microstructural defects at aortic branching sites that subsequently propagate into a macroscopic medial tear, giving rise to aortic dissection in angiotensin-II-infused mice.
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Affiliation(s)
- Lydia Aslanidou
- Institute of Bioengineering, École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland.
| | - Mauro Ferraro
- Institute of Bioengineering, École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
| | - Goran Lovric
- Centre d'Imagerie BioMédicale, École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
- Swiss Light Source, Paul Scherrer Institute, Villigen, Switzerland
| | - Matthew R Bersi
- Department of Biomedical Engineering, Yale University, New Haven, USA
- Department of Biomedical Engineering, Vanderbilt University, Nashville, USA
| | - Jay D Humphrey
- Department of Biomedical Engineering, Yale University, New Haven, USA
| | | | - Bram Trachet
- Institute of Bioengineering, École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
- bioMMeda, Ghent University, Ghent, Belgium
| | - Nikos Stergiopulos
- Institute of Bioengineering, École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
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23
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Wang X, Lane BA, Eberth JF, Lessner SM, Vyavahare NR. Gold nanoparticles that target degraded elastin improve imaging and rupture prediction in an AngII mediated mouse model of abdominal aortic aneurysm. Theranostics 2019; 9:4156-4167. [PMID: 31281538 PMCID: PMC6592177 DOI: 10.7150/thno.34441] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Accepted: 03/28/2019] [Indexed: 12/20/2022] Open
Abstract
Background: Abdominal aortic aneurysms (AAA) are characterized by a progressive disruption and weakening of the extracellular matrix (ECM) leading to dilation of the aorta which can be fatal if not treated. Current diagnostic imaging modalities provides little insight on the varying degree of ECM degeneration that precedes rupture in AAAs. Targeted delivery of contrast agents such as gold nanoparticles (GNPs) that bind to degraded matrix could prove useful when combined with computed tomography (CT) to provide a non-invasive surrogate marker of AAA rupture potential. Methods: AAAs were induced by chronic infusion of angiotensin II (AngII) into low density-lipoprotein receptor-deficient (LDLr -/-) mice in combination with a high-fat diet. Abdominal ultrasound was used to monitor disease progression and to assess the circumferential strain throughout the cardiac cycle. At six weeks, GNPs conjugated with an elastin antibody (EL-GNP) were injected retro-orbitally. Mice were euthanized 24 hours after EL-GNP injection, and aortas were explanted and scanned ex-vivo with a micro-CT system. Histological assessment and 3D models of the aneurysms with micro-CT were used to determine the EL-GNPs distribution. Isolated vessel burst pressure testing was performed on each aneurysmal aorta to quantify rupture strength and to assess rupture location. Results: Aneurysms were found along the suprarenal aorta in AngII infused mice. Darkfield microscopy indicated EL-GNPs accumulation around the site of degraded elastin while avoiding the healthy and intact elastin fibers. Using nonlinear regression, the micro-CT signal intensity of EL-GNPs along the suprarenal aortas correlated strongly with burst pressures (R2=0.9415) but not the dilation as assessed by ultrasound measurements. Conclusions: Using an established mouse model of AAA, we successfully demonstrated in vivo targeting of EL-GNPs to damaged aortic elastin and correlated micro-CT-based signal intensities with burst pressures. Thus, we show that this novel targeting technique can be used as a diagnostic tool to predict the degree of elastin damage and therefore rupture potential in AAAs better than the extent of dilation.
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24
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Tellides G. Further Evidence Supporting a Protective Role of Transforming Growth Factor-β (TGFβ) in Aortic Aneurysm and Dissection. Arterioscler Thromb Vasc Biol 2019; 37:1983-1986. [PMID: 29070536 DOI: 10.1161/atvbaha.117.310031] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- George Tellides
- From the Department of Surgery and Interdepartmental Program in Vascular Biology and Therapeutics, Yale University School of Medicine, New Haven, CT; and Veterans Affairs Connecticut Healthcare System, West Haven.
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25
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Adelsperger AR, Phillips EH, Ibriga HS, Craig BA, Green LA, Murphy MP, Goergen CJ. Development and growth trends in angiotensin II-induced murine dissecting abdominal aortic aneurysms. Physiol Rep 2019; 6:e13668. [PMID: 29696811 PMCID: PMC5917066 DOI: 10.14814/phy2.13668] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Revised: 03/05/2018] [Accepted: 03/07/2018] [Indexed: 11/24/2022] Open
Abstract
Abdominal aortic aneurysms are pathological dilations that can suddenly rupture, causing more than 15,000 deaths in the U.S. annually. Current treatment focuses on observation until an aneurysm's size warrants surgical intervention. Thus, there is a need for therapeutic intervention to inhibit growth of smaller aneurysms. An experimental aneurysm model that infuses angiotensin II into apolipoprotein E‐deficient mice is widely used to investigate underlying pathological mechanisms and potential therapeutics, but this model has two caveats: (1) aneurysms do not always form, and (2) aneurysm severity and growth is inconsistent among animals. Here we use high‐frequency ultrasound to collect data from angiotensin II‐induced aneurysms to develop prediction models of both aneurysm formation and growth. Baseline measurements of aortic diameter, volume/length, and strain were used with animal mass and age in a quadratic discriminant analysis and logistic regression to build two statistical models to predict disease status. Longitudinal ultrasound data were also acquired from mice with aneurysms to quantify aneurysm diameter, circumferential strain, blood flow velocity, aneurysm volume/length, and thrombus and open‐false lumen volumes over 28 days. Measurements taken at aneurysm diagnosis were used with branching artery information to produce a multiple linear regression model to predict final aneurysm volume/length. All three statistical models could be useful in future aneurysm therapeutic studies to better delineate the effects of preventative and suppressive treatments from normal variations in the angiotensin II aneurysm model.
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Affiliation(s)
- Amelia R Adelsperger
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, Indiana
| | - Evan H Phillips
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, Indiana
| | - Hilda S Ibriga
- Department of Statistics, Purdue University, West Lafayette, Indiana
| | - Bruce A Craig
- Department of Statistics, Purdue University, West Lafayette, Indiana
| | - Linden A Green
- IU Health Center for Aortic Disease/Department of Surgery, Indiana University School of Medicine, Indianapolis, Indiana
| | | | - Craig J Goergen
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, Indiana
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Abstract
Current management of aortic aneurysms relies exclusively on prophylactic operative repair of larger aneurysms. Great potential exists for successful medical therapy that halts or reduces aneurysm progression and hence alleviates or postpones the need for surgical repair. Preclinical studies in the context of abdominal aortic aneurysm identified hundreds of candidate strategies for stabilization, and data from preoperative clinical intervention studies show that interventions in the pathways of the activated inflammatory and proteolytic cascades in enlarging abdominal aortic aneurysm are feasible. Similarly, the concept of pharmaceutical aorta stabilization in Marfan syndrome is supported by a wealth of promising studies in the murine models of Marfan syndrome-related aortapathy. Although some clinical studies report successful medical stabilization of growing aortic aneurysms and aortic root stabilization in Marfan syndrome, these claims are not consistently confirmed in larger and controlled studies. Consequently, no medical therapy can be recommended for the stabilization of aortic aneurysms. The discrepancy between preclinical successes and clinical trial failures implies shortcomings in the available models of aneurysm disease and perhaps incomplete understanding of the pathological processes involved in later stages of aortic aneurysm progression. Preclinical models more reflective of human pathophysiology, identification of biomarkers to predict severity of disease progression, and improved design of clinical trials may more rapidly advance the opportunities in this important field.
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Affiliation(s)
- Jan H. Lindeman
- Dept. Vascular Surgery, Leiden University Medical Center, The Netherlands
| | - Jon S. Matsumura
- Division of Vascular Surgery, School of Medicine and Public Health, University of Wisconsin, Madison, Wisconsin
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27
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Phillips EH, Lorch AH, Durkes AC, Goergen CJ. Early pathological characterization of murine dissecting abdominal aortic aneurysms. APL Bioeng 2018; 2:046106. [PMID: 31069328 PMCID: PMC6481730 DOI: 10.1063/1.5053708] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Accepted: 12/10/2018] [Indexed: 12/11/2022] Open
Abstract
We report here on the early pathology of a well-established murine model of dissecting abdominal aortic aneurysms (AAAs). Continuous infusion of angiotensin II (AngII) into apolipoprotein E-deficient mice induces the formation of aortic dissection and expansion at some point after implantation of miniosmotic pumps containing AngII. While this model has been studied extensively at a chronic stage, we investigated the early pathology of dissecting AAA formation at multiple scales. Using high-frequency ultrasound, we screened 12-week-old male mice daily for initial formation of these aneurysmal lesions between days 3 and 10 post-implantation. We euthanized animals on the day of diagnosis of a dissecting AAA or at day 10 if no aneurysmal lesion developed. Aortic expansion and reduced vessel wall strain occurred in animals regardless of whether a dissecting AAA developed by day 10. The aortas of mice that did not develop dissecting AAAs showed intermediate changes in morphology and biomechanical properties. RNA sequencing and gene expression analysis revealed multiple proinflammatory and matrix remodeling genes to be upregulated in the suprarenal aorta of AngII-infused mice as compared to saline-infused controls. Histology and immunohistochemistry confirmed that extracellular matrix remodeling and inflammatory cell infiltration, notably neutrophils and macrophages, occurred in AngII-infused mice with and without dissecting AAAs but not saline-infused controls. Understanding early disease processes is a critical step forward in translating experimental results in cardiovascular disease research. This work advances our understanding of this well-established murine model with applications for improving early diagnosis and therapy of acute aortic syndrome in humans.
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Affiliation(s)
- Evan H Phillips
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, Indiana 47907, USA
| | - Adam H Lorch
- Department of Biology, Purdue University, West Lafayette, Indiana 47907, USA
| | - Abigail C Durkes
- Department of Comparative Pathobiology, Purdue University, West Lafayette, Indiana 47907, USA
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Propagation-based phase-contrast synchrotron imaging of aortic dissection in mice: from individual elastic lamella to 3D analysis. Sci Rep 2018; 8:2223. [PMID: 29396472 PMCID: PMC5797148 DOI: 10.1038/s41598-018-20673-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Accepted: 01/23/2018] [Indexed: 11/09/2022] Open
Abstract
In order to show the advantage and potential of propagation-based phase-contrast synchrotron imaging in vascular pathology research, we analyzed aortic medial ruptures in BAPN/AngII-infused mice, a mouse model for aortic dissection. Ascending and thoraco-abdominal samples from n = 3 control animals and n = 10 BAPN/AngII-infused mice (after 3, 7 and 14 days of infusion, total of 24 samples) were scanned. A steep increase in the number of ruptures was already noted after 3 days of BAPN/AngII-infusion. The largest ruptures were found at the latest time points. 133 ruptures affected only the first lamella while 135 ruptures affected multiple layers. Medial ruptures through all lamellar layers, leading to false channel formation and intramural hematoma, occurred only in the thoraco-abdominal aorta and interlamellar hematoma formation in the ascending aorta could be directly related to ruptures of the innermost lamellae. The advantages of this technique are (i) ultra-high resolution that allows to visualize the individual elastic lamellae in the aorta; (ii) quantitative and qualitative analysis of medial ruptures; (iii) 3D analysis of the complete aorta; (iv) high contrast for qualitative information extraction, reducing the need for histology coupes; (v) earlier detection of (micro-) ruptures.
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Gal D, Sipido KR, Vandevelde W. Editorial highlights from Cardiovascular Research. Cardiovasc Res 2017; 113:e64-e68. [PMID: 29186440 DOI: 10.1093/cvr/cvx210] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Affiliation(s)
- Diane Gal
- Division of Experimental Cardiology, Department of Cardiovascular Sciences, Campus Gasthuisberg, KU Leuven, Belgium
| | - Karin R Sipido
- Division of Experimental Cardiology, Department of Cardiovascular Sciences, Campus Gasthuisberg, KU Leuven, Belgium
| | - Wouter Vandevelde
- Division of Experimental Cardiology, Department of Cardiovascular Sciences, Campus Gasthuisberg, KU Leuven, Belgium
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A novel reproducible model of aortic aneurysm rupture. Surgery 2017; 163:397-403. [PMID: 29195736 DOI: 10.1016/j.surg.2017.10.003] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Revised: 10/04/2017] [Accepted: 10/05/2017] [Indexed: 01/14/2023]
Abstract
INTRODUCTION Given the unknown biologic antecedents before aortic aneurysm rupture, the purpose of this study was to establish a reproducible model of aortic aneurysm rupture. METHODS We fed 7-week-old apolipoprotein E deficient mice a high-fat diet for 4 weeks and osmotic infusion pumps containing Angiotensin II were implanted. Angiotensin II was delivered continuously for 4 weeks at either 1,000 ng/kg/min (n = 25) or 2,000 ng/kg/min (n = 29). A third group (n = 14) were given Angiotensin II at 2,000 ng/kg/min and 0.2% β-aminopropionitrile dissolved in drinking water. Surviving mice were killed 28 days after pump placement, aortic diameters were measured, and molecular analyses were performed. RESULTS Survival at 28 days was significantly different among groups with 80% survival in the 1,000 ng/kg/min group, 52% in the 2,000 ng/kg/min group, and only 14% in the Angiotensin II/β-aminopropionitrile group (P = .0001). Concordantly, rupture rates were statistically different among groups (8% versus 38% versus 79%, P < .0001). Rates of abdominal aortic aneurysm were 48%, 55%, and 93%, respectively, with statistically higher rates in the Angiotensin II/β-aminopropionitrile group compared with both the 1,000 ng and 2,000 ng Angiotensin II groups (P = .006 and P = .0165, respectively). Rates of thoracic aortic aneurysm formation were 12%, 52%, and 79% in the 3 groups with a statistically higher rate in the Angiotensin II/β-aminopropionitrile group compared with 1,000 ng group (P < .0001). CONCLUSIONS A reproducible model of aortic aneurysm rupture was developed with a high incidence of abdominal and thoracic aortic aneurysm. This model should enable further studies investigating the pathogenesis of aortic rupture, as well as allow for targeted strategies to prevent human aortic aneurysm rupture.
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Phillips EH, Chang MS, Gorman S, Qureshi HJ, Ejendal KFK, Kinzer-Ursem TL, Blaize AN, Goergen CJ. Angiotensin II Infusion Does Not Cause Abdominal Aortic Aneurysms in Apolipoprotein E-Deficient Rats. J Vasc Res 2017; 55:1-12. [PMID: 29166645 DOI: 10.1159/000484086] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2017] [Accepted: 10/07/2017] [Indexed: 12/31/2022] Open
Abstract
The apolipoprotein E-deficient (apoE-/-) mouse model has advanced our understanding of cardiovascular disease mechanisms and experimental therapeutics. This spontaneous model recapitulates aspects of human atherosclerosis, and allows for the development of dissecting abdominal aortic aneurysms (AAAs) when combined with angiotensin II. We characterized apoE-/- rats and hypothesized that, similar to mice, they would develop dissecting AAAs. We created rats with a 16-bp deletion of the apoE gene using transcription activator-like effector nucleases. We imaged the suprarenal aorta for 28 days after implantation of miniosmotic pumps that infuse angiotensin II (AngII, 200 ng/kg/min). Blood pressure (BP), serum lipids and lipoproteins, and histology were also analyzed. These rats did not develop pathological aortic dissection, but we did observe a decrease in circumferential cyclic strain, a rise in BP, and microstructural changes in the aortic medial layer. We also measured increased serum lipids with and without administration of a high-fat diet, but did not detect atherosclerotic plaques. Chronic infusion of AngII did not lead to the formation of dissecting AAAs or atherosclerosis in the rats used in this study. While reduced amounts of atherosclerosis may explain this resistance to dissecting aneurysms, further investigation is needed to fully characterize species-specific differences.
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Affiliation(s)
- Evan H Phillips
- Weldon School of Biomedical Engineering, West Lafayette, IN, USA
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Trachet B, Aslanidou L, Piersigilli A, Fraga-Silva RA, Sordet-Dessimoz J, Villanueva-Perez P, Stampanoni MF, Stergiopulos N, Segers P. Angiotensin II infusion into ApoE-/- mice: a model for aortic dissection rather than abdominal aortic aneurysm? Cardiovasc Res 2017; 113:1230-1242. [DOI: 10.1093/cvr/cvx128] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2017] [Accepted: 06/26/2017] [Indexed: 01/13/2023] Open
Affiliation(s)
- Bram Trachet
- IBiTech–bioMMeda, Ghent University-iMinds Medical IT, De Pintelaan 185 Blok B, 9000 Ghent, Belgium
- Institute of Bioengineering, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
| | - Lydia Aslanidou
- Institute of Bioengineering, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
| | | | - Rodrigo A. Fraga-Silva
- Institute of Bioengineering, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
| | | | | | - Marco F.M. Stampanoni
- Swiss Light Source, Paul Scherrer Institut, Villigen, Switzerland
- Institute for Biomedical Engineering, University and ETH Zürich, Zürich, Switzerland
| | - Nikolaos Stergiopulos
- Institute of Bioengineering, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
| | - Patrick Segers
- IBiTech–bioMMeda, Ghent University-iMinds Medical IT, De Pintelaan 185 Blok B, 9000 Ghent, Belgium
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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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Trachet B, Piersigilli A, Fraga-Silva RA, Aslanidou L, Sordet-Dessimoz J, Astolfo A, Stampanoni MFM, Segers P, Stergiopulos N. Ascending Aortic Aneurysm in Angiotensin II-Infused Mice: Formation, Progression, and the Role of Focal Dissections. Arterioscler Thromb Vasc Biol 2016; 36:673-81. [PMID: 26891740 DOI: 10.1161/atvbaha.116.307211] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2015] [Accepted: 02/05/2016] [Indexed: 11/16/2022]
Abstract
OBJECTIVE To understand the anatomy and physiology of ascending aortic aneurysms in angiotensin II-infused ApoE(-/-) mice. APPROACH AND RESULTS We combined an extensive in vivo imaging protocol (high-frequency ultrasound and contrast-enhanced microcomputed tomography at baseline and after 3, 10, 18, and 28 days of angiotensin II infusion) with synchrotron-based ultrahigh resolution ex vivo imaging (phase contrast X-ray tomographic microscopy) in n=47 angiotensin II-infused mice and 6 controls. Aortic regurgitation increased significantly over time, as did the luminal volume of the ascending aorta. In the samples that were scanned ex vivo, we observed one or several focal dissections, with the largest located in the outer convex aspect of the ascending aorta. The volume of the dissections moderately correlated to the volume of the aneurysm as measured in vivo (r(2)=0.46). After 3 days of angiotensin II infusion, we found an interlaminar hematoma in 7/12 animals, which could be linked to an intimal tear. There was also a significant increase in single laminar ruptures, which may have facilitated a progressive enlargement of the focal dissections over time. At later time points, the hematoma was resorbed and the medial and adventitial thickness increased. Fatal transmural dissection occurred in 8/47 mice at an early stage of the disease, before adventita remodeling. CONCLUSIONS We visualized and quantified the dissections that lead to ascending aortic aneurysms in angiotensin II-infused mice and provided unique insight into the temporal evolution of these lesions.
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Affiliation(s)
- Bram Trachet
- From the Institute of Bioengineering, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland (B.T., R.A.F.-S., L.A., N.S.); IBiTech-bioMMeda, Ghent University-iMinds Medical IT, Ghent, Belgium (B.T., P.S.); School of Life Sciences, PTEC GE, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland (A.P.); Institute of Animal Pathology, Vetsuisse Faculty, University of Bern, Bern, Switzerland (A.P.); Histology Core Facility, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland (J.S.-D.); Swiss Light Source, Paul Scherrer Institut, Villigen, Switzerland (A.A., M.F.M.S.); and Institute for Biomedical Engineering, University and ETH Zürich, Zürich, Switzerland (M.F.M.S.).
| | - Alessandra Piersigilli
- From the Institute of Bioengineering, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland (B.T., R.A.F.-S., L.A., N.S.); IBiTech-bioMMeda, Ghent University-iMinds Medical IT, Ghent, Belgium (B.T., P.S.); School of Life Sciences, PTEC GE, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland (A.P.); Institute of Animal Pathology, Vetsuisse Faculty, University of Bern, Bern, Switzerland (A.P.); Histology Core Facility, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland (J.S.-D.); Swiss Light Source, Paul Scherrer Institut, Villigen, Switzerland (A.A., M.F.M.S.); and Institute for Biomedical Engineering, University and ETH Zürich, Zürich, Switzerland (M.F.M.S.)
| | - Rodrigo A Fraga-Silva
- From the Institute of Bioengineering, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland (B.T., R.A.F.-S., L.A., N.S.); IBiTech-bioMMeda, Ghent University-iMinds Medical IT, Ghent, Belgium (B.T., P.S.); School of Life Sciences, PTEC GE, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland (A.P.); Institute of Animal Pathology, Vetsuisse Faculty, University of Bern, Bern, Switzerland (A.P.); Histology Core Facility, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland (J.S.-D.); Swiss Light Source, Paul Scherrer Institut, Villigen, Switzerland (A.A., M.F.M.S.); and Institute for Biomedical Engineering, University and ETH Zürich, Zürich, Switzerland (M.F.M.S.)
| | - Lydia Aslanidou
- From the Institute of Bioengineering, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland (B.T., R.A.F.-S., L.A., N.S.); IBiTech-bioMMeda, Ghent University-iMinds Medical IT, Ghent, Belgium (B.T., P.S.); School of Life Sciences, PTEC GE, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland (A.P.); Institute of Animal Pathology, Vetsuisse Faculty, University of Bern, Bern, Switzerland (A.P.); Histology Core Facility, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland (J.S.-D.); Swiss Light Source, Paul Scherrer Institut, Villigen, Switzerland (A.A., M.F.M.S.); and Institute for Biomedical Engineering, University and ETH Zürich, Zürich, Switzerland (M.F.M.S.)
| | - Jessica Sordet-Dessimoz
- From the Institute of Bioengineering, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland (B.T., R.A.F.-S., L.A., N.S.); IBiTech-bioMMeda, Ghent University-iMinds Medical IT, Ghent, Belgium (B.T., P.S.); School of Life Sciences, PTEC GE, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland (A.P.); Institute of Animal Pathology, Vetsuisse Faculty, University of Bern, Bern, Switzerland (A.P.); Histology Core Facility, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland (J.S.-D.); Swiss Light Source, Paul Scherrer Institut, Villigen, Switzerland (A.A., M.F.M.S.); and Institute for Biomedical Engineering, University and ETH Zürich, Zürich, Switzerland (M.F.M.S.)
| | - Alberto Astolfo
- From the Institute of Bioengineering, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland (B.T., R.A.F.-S., L.A., N.S.); IBiTech-bioMMeda, Ghent University-iMinds Medical IT, Ghent, Belgium (B.T., P.S.); School of Life Sciences, PTEC GE, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland (A.P.); Institute of Animal Pathology, Vetsuisse Faculty, University of Bern, Bern, Switzerland (A.P.); Histology Core Facility, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland (J.S.-D.); Swiss Light Source, Paul Scherrer Institut, Villigen, Switzerland (A.A., M.F.M.S.); and Institute for Biomedical Engineering, University and ETH Zürich, Zürich, Switzerland (M.F.M.S.)
| | - Marco F M Stampanoni
- From the Institute of Bioengineering, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland (B.T., R.A.F.-S., L.A., N.S.); IBiTech-bioMMeda, Ghent University-iMinds Medical IT, Ghent, Belgium (B.T., P.S.); School of Life Sciences, PTEC GE, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland (A.P.); Institute of Animal Pathology, Vetsuisse Faculty, University of Bern, Bern, Switzerland (A.P.); Histology Core Facility, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland (J.S.-D.); Swiss Light Source, Paul Scherrer Institut, Villigen, Switzerland (A.A., M.F.M.S.); and Institute for Biomedical Engineering, University and ETH Zürich, Zürich, Switzerland (M.F.M.S.)
| | - Patrick Segers
- From the Institute of Bioengineering, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland (B.T., R.A.F.-S., L.A., N.S.); IBiTech-bioMMeda, Ghent University-iMinds Medical IT, Ghent, Belgium (B.T., P.S.); School of Life Sciences, PTEC GE, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland (A.P.); Institute of Animal Pathology, Vetsuisse Faculty, University of Bern, Bern, Switzerland (A.P.); Histology Core Facility, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland (J.S.-D.); Swiss Light Source, Paul Scherrer Institut, Villigen, Switzerland (A.A., M.F.M.S.); and Institute for Biomedical Engineering, University and ETH Zürich, Zürich, Switzerland (M.F.M.S.)
| | - Nikolaos Stergiopulos
- From the Institute of Bioengineering, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland (B.T., R.A.F.-S., L.A., N.S.); IBiTech-bioMMeda, Ghent University-iMinds Medical IT, Ghent, Belgium (B.T., P.S.); School of Life Sciences, PTEC GE, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland (A.P.); Institute of Animal Pathology, Vetsuisse Faculty, University of Bern, Bern, Switzerland (A.P.); Histology Core Facility, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland (J.S.-D.); Swiss Light Source, Paul Scherrer Institut, Villigen, Switzerland (A.A., M.F.M.S.); and Institute for Biomedical Engineering, University and ETH Zürich, Zürich, Switzerland (M.F.M.S.)
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