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Kazaleh M, Gioscia-Ryan R, Ailawadi G, Salmon M. Oxidative Stress and the Pathogenesis of Aortic Aneurysms. Biomedicines 2023; 12:3. [PMID: 38275364 PMCID: PMC10813769 DOI: 10.3390/biomedicines12010003] [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: 11/03/2023] [Revised: 12/13/2023] [Accepted: 12/15/2023] [Indexed: 01/27/2024] Open
Abstract
Aortic aneurysms are responsible for significant morbidity and mortality. Despite their clinical significance, there remain critical knowledge gaps in the pathogenesis of aneurysm disease and the mechanisms involved in aortic rupture. Recent studies have drawn attention to the role of reactive oxygen species (ROS) and their down-stream effectors in chronic cardiovascular diseases and specifically in the pathogenesis of aortic aneurysm formation. This review will discuss current mechanisms of ROS in mediating aortic aneurysms, the failure of endogenous antioxidant systems in chronic vascular diseases, and their relation to the development of aortic aneurysms.
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Affiliation(s)
- Matthew Kazaleh
- Department of Cardiac Surgery, Michigan Medicine, University of Michigan, Ann Arbor, MI 48109, USA; (M.K.); (G.A.)
| | - Rachel Gioscia-Ryan
- Department of Anesthesiology, Michigan Medicine, University of Michigan, Ann Arbor, MI 48109, USA;
| | - Gorav Ailawadi
- Department of Cardiac Surgery, Michigan Medicine, University of Michigan, Ann Arbor, MI 48109, USA; (M.K.); (G.A.)
- Frankel Cardiovascular Center, Michigan Medicine, University of Michigan, Ann Arbor, MI 48109, USA
| | - Morgan Salmon
- Department of Cardiac Surgery, Michigan Medicine, University of Michigan, Ann Arbor, MI 48109, USA; (M.K.); (G.A.)
- Frankel Cardiovascular Center, Michigan Medicine, University of Michigan, Ann Arbor, MI 48109, USA
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2
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The mechanism and therapy of aortic aneurysms. Signal Transduct Target Ther 2023; 8:55. [PMID: 36737432 PMCID: PMC9898314 DOI: 10.1038/s41392-023-01325-7] [Citation(s) in RCA: 36] [Impact Index Per Article: 36.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2022] [Revised: 12/15/2022] [Accepted: 01/14/2023] [Indexed: 02/05/2023] Open
Abstract
Aortic aneurysm is a chronic aortic disease affected by many factors. Although it is generally asymptomatic, it poses a significant threat to human life due to a high risk of rupture. Because of its strong concealment, it is difficult to diagnose the disease in the early stage. At present, there are no effective drugs for the treatment of aneurysms. Surgical intervention and endovascular treatment are the only therapies. Although current studies have discovered that inflammatory responses as well as the production and activation of various proteases promote aortic aneurysm, the specific mechanisms remain unclear. Researchers are further exploring the pathogenesis of aneurysms to find new targets for diagnosis and treatment. To better understand aortic aneurysm, this review elaborates on the discovery history of aortic aneurysm, main classification and clinical manifestations, related molecular mechanisms, clinical cohort studies and animal models, with the ultimate goal of providing insights into the treatment of this devastating disease. The underlying problem with aneurysm disease is weakening of the aortic wall, leading to progressive dilation. If not treated in time, the aortic aneurysm eventually ruptures. An aortic aneurysm is a local enlargement of an artery caused by a weakening of the aortic wall. The disease is usually asymptomatic but leads to high mortality due to the risk of artery rupture.
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3
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NADPH Oxidases in Aortic Aneurysms. Antioxidants (Basel) 2022; 11:antiox11091830. [PMID: 36139902 PMCID: PMC9495752 DOI: 10.3390/antiox11091830] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Revised: 09/08/2022] [Accepted: 09/12/2022] [Indexed: 12/02/2022] Open
Abstract
Abdominal aortic aneurysms (AAAs) are a progressive dilation of the infrarenal aorta and are characterized by inflammatory cell infiltration, smooth muscle cell migration and proliferation, and degradation of the extracellular matrix. Oxidative stress and the production of reactive oxygen species (ROS) have been shown to play roles in inflammatory cell infiltration, and smooth muscle cell migration and apoptosis in AAAs. In this review, we discuss the principles of nicotinamide adenine dinucleotide phosphate oxidase (NADPH oxidase/NOX) signaling and activation. We also discuss the effects of some of the major mediators of NOX signaling in AAAs. Separately, we also discuss the influence of genetic or pharmacologic inhibitors of NADPH oxidases on experimental pre-clinical AAAs. Experimental evidence suggests that NADPH oxidases may be a promising future therapeutic target for developing pharmacologic treatment strategies for halting AAA progression or rupture prevention in the management of clinical AAAs.
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4
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Caescu CI, Hansen J, Crockett B, Xiao W, Arnaud P, Spronck B, Weinberg A, Hashimoto T, Murtada SI, Borkar R, Gallo JM, Jondeau G, Boileau C, Humphrey JD, He JC, Iyengar R, Ramirez F. Inhibition of HIPK2 Alleviates Thoracic Aortic Disease in Mice With Progressively Severe Marfan Syndrome. Arterioscler Thromb Vasc Biol 2021; 41:2483-2493. [PMID: 34320838 PMCID: PMC8530207 DOI: 10.1161/atvbaha.121.316464] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Objective Despite considerable research, the goal of finding nonsurgical remedies against thoracic aortic aneurysm and acute aortic dissection remains elusive. We sought to identify a novel aortic PK (protein kinase) that can be pharmacologically targeted to mitigate aneurysmal disease in a well-established mouse model of early-onset progressively severe Marfan syndrome (MFS). Approach and Results Computational analyses of transcriptomic data derived from the ascending aorta of MFS mice predicted a probable association between thoracic aortic aneurysm and acute aortic dissection development and the multifunctional, stress-activated HIPK2 (homeodomain-interacting protein kinase 2). Consistent with this prediction, Hipk2 gene inactivation significantly extended the survival of MFS mice by slowing aneurysm growth and delaying transmural rupture. HIPK2 also ranked among the top predicted PKs in computational analyses of DEGs (differentially expressed genes) in the dilated aorta of 3 MFS patients, which strengthened the clinical relevance of the experimental finding. Additional in silico analyses of the human and mouse data sets identified the TGF (transforming growth factor)-β/Smad3 signaling pathway as a potential target of HIPK2 in the MFS aorta. Chronic treatment of MFS mice with an allosteric inhibitor of HIPK2-mediated stimulation of Smad3 signaling validated this prediction by mitigating thoracic aortic aneurysm and acute aortic dissection pathology and partially improving aortic material stiffness. Conclusions HIPK2 is a previously unrecognized determinant of aneurysmal disease and an attractive new target for antithoracic aortic aneurysm and acute aortic dissection multidrug therapy.
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MESH Headings
- Adult
- Aortic Dissection/enzymology
- Aortic Dissection/genetics
- Aortic Dissection/pathology
- Aortic Dissection/prevention & control
- Animals
- Aorta, Thoracic/drug effects
- Aorta, Thoracic/enzymology
- Aorta, Thoracic/pathology
- Aortic Aneurysm, Thoracic/enzymology
- Aortic Aneurysm, Thoracic/genetics
- Aortic Aneurysm, Thoracic/pathology
- Aortic Aneurysm, Thoracic/prevention & control
- Carrier Proteins/genetics
- Carrier Proteins/metabolism
- Dilatation, Pathologic
- Disease Models, Animal
- Disease Progression
- Fibrillin-1/genetics
- Humans
- Male
- Marfan Syndrome/complications
- Marfan Syndrome/genetics
- Mice, 129 Strain
- Mice, Inbred C57BL
- Mice, Knockout
- Protein Kinase Inhibitors/pharmacology
- Protein Serine-Threonine Kinases/antagonists & inhibitors
- Protein Serine-Threonine Kinases/genetics
- Protein Serine-Threonine Kinases/metabolism
- Severity of Illness Index
- Signal Transduction
- Smad3 Protein/metabolism
- Vascular Remodeling/drug effects
- Mice
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Affiliation(s)
- Cristina I Caescu
- Department of Pharmacological Sciences, Institute for Systems Biomedicine (C.I.C., J.H., B.C., T.H., R.I., F.R.), Icahn School of Medicine at Mount Sinai, New York
| | - Jens Hansen
- Department of Pharmacological Sciences, Institute for Systems Biomedicine (C.I.C., J.H., B.C., T.H., R.I., F.R.), Icahn School of Medicine at Mount Sinai, New York
| | - Brittany Crockett
- Department of Pharmacological Sciences, Institute for Systems Biomedicine (C.I.C., J.H., B.C., T.H., R.I., F.R.), Icahn School of Medicine at Mount Sinai, New York
| | - Wenzhen Xiao
- Division of Nephrology, Department of Medicine (W.X., J.C.H.), Icahn School of Medicine at Mount Sinai, New York
| | - Pauline Arnaud
- Département de Génétique et Centre de Référence Maladies Rares Syndrome de Marfan et Pathologies Apparentées, Assistance Publique-Hôpitaux de Paris, Hôpital Bichat, France (P.A., G.J., C.B.)
- LVTS, INSERM U1148, Université de Paris, Hôpital Bichat, France (P.A., G.J., C.B.)
| | - Bart Spronck
- Department of Biomedical Engineering, Yale University, New Haven, CT (B.S., S.-I.M., J.D.H.)
| | - Alan Weinberg
- Department of Population Health Science and Policy (A.W.), Icahn School of Medicine at Mount Sinai, New York
| | - Takeshi Hashimoto
- Department of Pharmacological Sciences, Institute for Systems Biomedicine (C.I.C., J.H., B.C., T.H., R.I., F.R.), Icahn School of Medicine at Mount Sinai, New York
| | - Sae-Il Murtada
- Department of Biomedical Engineering, Yale University, New Haven, CT (B.S., S.-I.M., J.D.H.)
| | - Roshan Borkar
- Department of Pharmaceutical Sciences, State University of New York, Buffalo (R.B., J.M.G.)
| | - James M Gallo
- Department of Pharmaceutical Sciences, State University of New York, Buffalo (R.B., J.M.G.)
| | - Guillaume Jondeau
- Département de Génétique et Centre de Référence Maladies Rares Syndrome de Marfan et Pathologies Apparentées, Assistance Publique-Hôpitaux de Paris, Hôpital Bichat, France (P.A., G.J., C.B.)
- LVTS, INSERM U1148, Université de Paris, Hôpital Bichat, France (P.A., G.J., C.B.)
| | - Catherine Boileau
- Département de Génétique et Centre de Référence Maladies Rares Syndrome de Marfan et Pathologies Apparentées, Assistance Publique-Hôpitaux de Paris, Hôpital Bichat, France (P.A., G.J., C.B.)
- LVTS, INSERM U1148, Université de Paris, Hôpital Bichat, France (P.A., G.J., C.B.)
| | - Jay D Humphrey
- Department of Biomedical Engineering, Yale University, New Haven, CT (B.S., S.-I.M., J.D.H.)
| | - John Cijiang He
- Division of Nephrology, Department of Medicine (W.X., J.C.H.), Icahn School of Medicine at Mount Sinai, New York
| | - Ravi Iyengar
- Department of Pharmacological Sciences, Institute for Systems Biomedicine (C.I.C., J.H., B.C., T.H., R.I., F.R.), Icahn School of Medicine at Mount Sinai, New York
| | - Francesco Ramirez
- Department of Pharmacological Sciences, Institute for Systems Biomedicine (C.I.C., J.H., B.C., T.H., R.I., F.R.), Icahn School of Medicine at Mount Sinai, New York
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5
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AlSiraj Y, Thatcher SE, Blalock E, Saintilnord WN, Daugherty A, Lu HS, Luo W, Shen YH, LeMaire SA, Arnold AP, Cassis LA. Monosomy X in Female Mice Influences the Regional Formation and Augments the Severity of Angiotensin II-Induced Aortopathies. Arterioscler Thromb Vasc Biol 2021; 41:269-283. [PMID: 33054396 PMCID: PMC8259710 DOI: 10.1161/atvbaha.120.314407] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
OBJECTIVE Turner syndrome women (monosomy X) have high risk of aortopathies consistent with a role for sex chromosomes in disease development. We demonstrated that sex chromosomes influence regional development of Ang II (angiotensin II)-induced aortopathies in mice. In this study, we determined if the number of X chromosomes regulates regional development of Ang II-induced aortopathies. Approach and Results: We used females with varying numbers of X chromosomes (XX female mice [XXF] or XO female mice [XOF]) on an C57BL/6J (ascending aortopathies) or low-density lipoprotein receptor deficient (Ldlr-/-) background (descending and abdominal aortopathies) compared with XY males (XYM). To induce aortopathies, mice were infused with Ang II. XOF (C57BL/6J) exhibited larger percent increases in ascending aortic lumen diameters than Ang II-infused XXF or XYM. Ang II-infused XOF (Ldlr-/-) exhibited similar incidences of thoracic (XOF, 50%; XYM, 71%) and abdominal aortopathies (XOF, 83%; XYM, 71%) as XYM, which were greater than XXF (XXF, 0%). Abdominal aortic lumen diameters and maximal external diameters were similar between XOF and XYM but greater than XXF, and these effects persisted with extended Ang II infusions. Larger aortic lumen diameters, abdominal aortopathy incidence (XXF, 20%; XOF, 75%), and maximal aneurysm diameters (XXF, 1.02±0.17; XOF, 1.96±0.32 mm; P=0.027) persisted in ovariectomized Ang II-infused XOF mice. Data from RNA-seq demonstrated that X chromosome genes that escape X-inactivation (histone lysine demethylases Kdm5c and Kdm6a) exhibited lower mRNA abundance in aortas of XOF than XXF (P=0.033 and 0.024, respectively). Conversely, DNA methylation was higher in aortas of XOF than XXF (P=0.038). CONCLUSIONS The absence of a second X chromosome promotes diffuse Ang II-induced aortopathies in females.
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MESH Headings
- Angiotensin II
- Animals
- Aorta, Abdominal/metabolism
- Aorta, Abdominal/pathology
- Aorta, Thoracic/metabolism
- Aorta, Thoracic/pathology
- Aortic Aneurysm, Abdominal/chemically induced
- Aortic Aneurysm, Abdominal/genetics
- Aortic Aneurysm, Abdominal/metabolism
- Aortic Aneurysm, Abdominal/pathology
- Aortic Aneurysm, Thoracic/chemically induced
- Aortic Aneurysm, Thoracic/genetics
- Aortic Aneurysm, Thoracic/metabolism
- Aortic Aneurysm, Thoracic/pathology
- DNA Methylation
- Disease Models, Animal
- Female
- Histone Demethylases/genetics
- Histone Demethylases/metabolism
- Mice, Inbred C57BL
- Mice, Knockout
- Ovariectomy
- Receptors, LDL/deficiency
- Receptors, LDL/genetics
- Severity of Illness Index
- Turner Syndrome/complications
- Turner Syndrome/genetics
- Mice
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Affiliation(s)
- Yasir AlSiraj
- Department of Pharmacology and Nutritional Sciences, University of Kentucky, Lexington KY
| | - Sean E. Thatcher
- Department of Pharmacology and Nutritional Sciences, University of Kentucky, Lexington KY
| | - Eric Blalock
- Department of Pharmacology and Nutritional Sciences, University of Kentucky, Lexington KY
| | - Wesley N. Saintilnord
- Department of Molecular and Cellular Biochemistry, University of Kentucky, Lexington, KY
| | - Alan Daugherty
- Department of Physiology, University of Kentucky, Lexington KY
- Saha Cardiovascular Research Center, University of Kentucky, Lexington KY
| | - Hong S. Lu
- Department of Physiology, University of Kentucky, Lexington KY
- Saha Cardiovascular Research Center, University of Kentucky, Lexington KY
| | - Wei Luo
- Division of Cardiothoracic Surgery, Michael E. DeBakey Department of Surgery, Baylor College of Medicine, and Department of Cardiovascular Surgery, Texas Heart Institute, Houston TX
| | - Ying H. Shen
- Division of Cardiothoracic Surgery, Michael E. DeBakey Department of Surgery, Baylor College of Medicine, and Department of Cardiovascular Surgery, Texas Heart Institute, Houston TX
| | - Scott A. LeMaire
- Division of Cardiothoracic Surgery, Michael E. DeBakey Department of Surgery, Baylor College of Medicine, and Department of Cardiovascular Surgery, Texas Heart Institute, Houston TX
| | - Arthur P. Arnold
- Integrative Biology and Physiology, University of California, Los Angeles CA
| | - Lisa A. Cassis
- Department of Pharmacology and Nutritional Sciences, University of Kentucky, Lexington KY
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6
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Abstract
Abdominal aortic aneurysms (AAA) pose a considerable health burden and at present are only managed surgically since there is no proven pharmacotherapy that will retard their expansion or reduce the incidence of fatal rupture. This pathology shares several pathophysiological mechanisms with atherosclerosis, such as macrophage infiltration, inflammation, and degradation of extracellular matrix. Therefore, therapeutic targets proven effective in the treatment of atherosclerosis could also be considered for treatment of AAA. Different members of the nuclear receptor (NR) superfamily have been extensively studied as potential targets in the treatment of cardiovascular disease (CVD) and therefore might also be suited for AAA treatment. In this context, this review summarizes the role of different NRs in CVD, mostly atherosclerosis, and discusses in detail the current knowledge of their implications in AAA. From this overview it becomes apparent that NRs that were attributed a beneficial or adverse role in CVD have similar roles in AAA. Together, this overview provides compelling evidence to consider several NRs as attractive targets for future treatment of AAA.
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7
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Wiernicki I, Parafiniuk M, Kolasa-Wołosiuk A, Gutowska I, Kazimierczak A, Clark J, Baranowska-Bosiacka I, Szumilowicz P, Gutowski P. Relationship between aortic wall oxidative stress/proteolytic enzyme expression and intraluminal thrombus thickness indicates a novel pathomechanism in the progression of human abdominal aortic aneurysm. FASEB J 2018; 33:885-895. [PMID: 30351992 DOI: 10.1096/fj.201800633r] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The possibility that oxidative stress promotes degradation of the extracellular matrix and a relationship between intraluminal thrombus (ILT) thickness and proteolytic activity within the abdominal aortic aneurysm (AAA) wall has been suggested. In the present study, the hypothesis that thin ILT is correlated with an increase in oxidative stress-related enzymes and matrix metalloproteinase-9 (MMP-9) expression within the human AAA wall was investigated. We also studied the antioxidant activity of superoxide dismutases, catalase, glutathione peroxidase, glutathione reductase, and thioredoxin within the full-thickness AAA wall and through fluoroimmunohistochemical staining of catalase and MMP-9 expression within the inner and outer media, in relation to ILT thickness. Reactive oxygen species control the degradation and remodeling of the extracellular matrix by up-regulating proteolytic enzymes, such as MMPs. Results showed that oxidative stress and proteolytic enzyme expression were simultaneously, significantly higher within thin thrombus (≤10 mm)-covered aneurysm wall when compared with the wall covered by thick thrombus (≥25 mm). These findings provide the first demonstration, to our knowledge, of a causative link between oxidative stress instigating proteolytic enzyme expression at the tissue level and human AAA development. Presence of a thin circumferential thrombus should always be considered as a risk factor for the greatest increase in aneurysm growth rate and rupture, giving an indication for surgery timing.-Wiernicki, I., Parafiniuk, M., Kolasa-Wołosiuk, A., Gutowska, I., Kazimierczak, A., Clark, J., Baranowska-Bosiacka, I., Szumilowicz, P., Gutowski, P. Relationship between aortic wall oxidative stress/proteolytic enzyme expression and intraluminal thrombus thickness indicates a novel pathomechanism in the progression of human abdominal aortic aneurysm.
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Affiliation(s)
- Ireneusz Wiernicki
- Department of Vascular Surgery and Angiology, Pomeranian Medical University, Szczecin, Poland
| | - Miroslaw Parafiniuk
- Department of Forensic Medicine, Pomeranian Medical University, Szczecin, Poland
| | | | - Izabela Gutowska
- Department of Biochemistry and Human Nutrition, Pomeranian Medical University, Szczecin, Poland
| | - Arkadiusz Kazimierczak
- Department of Vascular Surgery and Angiology, Pomeranian Medical University, Szczecin, Poland
| | - Jeremy Clark
- Department of Clinical and Molecular Biochemistry, Faculty of Laboratory Diagnostics and Molecular Medicine, Pomeranian Medical University, Szczecin, Poland
| | - Irena Baranowska-Bosiacka
- Department of Biochemistry and Medical Chemistry, Faculty of Laboratory Diagnostics and Molecular Medicine, Pomeranian Medical University, Szczecin, Poland
| | - Pawel Szumilowicz
- Department of Vascular Surgery and Angiology, Pomeranian Medical University, Szczecin, Poland
| | - Piotr Gutowski
- Department of Vascular Surgery and Angiology, Pomeranian Medical University, Szczecin, Poland
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8
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Chuaiphichai S, Rashbrook VS, Hale AB, Trelfa L, Patel J, McNeill E, Lygate CA, Channon KM, Douglas G. Endothelial Cell Tetrahydrobiopterin Modulates Sensitivity to Ang (Angiotensin) II-Induced Vascular Remodeling, Blood Pressure, and Abdominal Aortic Aneurysm. Hypertension 2018; 72:128-138. [PMID: 29844152 PMCID: PMC6012043 DOI: 10.1161/hypertensionaha.118.11144] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Revised: 04/04/2018] [Accepted: 04/10/2018] [Indexed: 12/30/2022]
Abstract
GTPCH (GTP cyclohydrolase 1, encoded by Gch1) is required for the synthesis of tetrahydrobiopterin; a critical regulator of endothelial NO synthase function. We have previously shown that mice with selective loss of Gch1 in endothelial cells have mild vascular dysfunction, but the consequences of endothelial cell tetrahydrobiopterin deficiency in vascular disease pathogenesis are unknown. We investigated the pathological consequence of Ang (angiotensin) II infusion in endothelial cell Gch1 deficient (Gch1fl/fl Tie2cre) mice. Ang II (0.4 mg/kg per day, delivered by osmotic minipump) caused a significant decrease in circulating tetrahydrobiopterin levels in Gch1fl/fl Tie2cre mice and a significant increase in the Nω-nitro-L-arginine methyl ester inhabitable production of H2O2 in the aorta. Chronic treatment with this subpressor dose of Ang II resulted in a significant increase in blood pressure only in Gch1fl/fl Tie2cre mice. This finding was mirrored with acute administration of Ang II, where increased sensitivity to Ang II was observed at both pressor and subpressor doses. Chronic Ang II infusion in Gch1fl/fl Tie2ce mice resulted in vascular dysfunction in resistance mesenteric arteries with an enhanced constrictor and decreased dilator response and medial hypertrophy. Altered vascular remodeling was also observed in the aorta with an increase in the incidence of abdominal aortic aneurysm formation in Gch1fl/fl Tie2ce mice. These findings indicate a specific requirement for endothelial cell tetrahydrobiopterin in modulating the hemodynamic and structural changes induced by Ang II, through modulation of blood pressure, structural changes in resistance vessels, and aneurysm formation in the aorta.
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Affiliation(s)
- Surawee Chuaiphichai
- From the Division of Cardiovascular Medicine, British Heart Foundation Centre of Research Excellence and Wellcome Trust Centre for Human Genetics, University of Oxford, United Kingdom
| | - Victoria S Rashbrook
- From the Division of Cardiovascular Medicine, British Heart Foundation Centre of Research Excellence and Wellcome Trust Centre for Human Genetics, University of Oxford, United Kingdom
| | - Ashley B Hale
- From the Division of Cardiovascular Medicine, British Heart Foundation Centre of Research Excellence and Wellcome Trust Centre for Human Genetics, University of Oxford, United Kingdom
| | - Lucy Trelfa
- From the Division of Cardiovascular Medicine, British Heart Foundation Centre of Research Excellence and Wellcome Trust Centre for Human Genetics, University of Oxford, United Kingdom
| | - Jyoti Patel
- From the Division of Cardiovascular Medicine, British Heart Foundation Centre of Research Excellence and Wellcome Trust Centre for Human Genetics, University of Oxford, United Kingdom
| | - Eileen McNeill
- From the Division of Cardiovascular Medicine, British Heart Foundation Centre of Research Excellence and Wellcome Trust Centre for Human Genetics, University of Oxford, United Kingdom
| | - Craig A Lygate
- From the Division of Cardiovascular Medicine, British Heart Foundation Centre of Research Excellence and Wellcome Trust Centre for Human Genetics, University of Oxford, United Kingdom
| | - Keith M Channon
- From the Division of Cardiovascular Medicine, British Heart Foundation Centre of Research Excellence and Wellcome Trust Centre for Human Genetics, University of Oxford, United Kingdom.
| | - Gillian Douglas
- From the Division of Cardiovascular Medicine, British Heart Foundation Centre of Research Excellence and Wellcome Trust Centre for Human Genetics, University of Oxford, United Kingdom
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9
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Golob MJ, Massoudi D, Tabima DM, Johnston JL, Wolf GD, Hacker TA, Greenspan DS, Chesler NC. Cardiovascular function and structure are preserved despite induced ablation of BMP1-related proteinases. Cell Mol Bioeng 2018; 11:255-266. [PMID: 30123369 DOI: 10.1007/s12195-018-0534-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
Introduction Bone morphogenetic protein 1 (BMP1) is part of an extracellular metalloproteinase family that biosynthetically processes procollagen molecules. BMP1- and tolloid-like (TLL1) proteinases mediate the cleavage of carboxyl peptides from procollagen molecules, which is a crucial step in fibrillar collagen synthesis. Ablating the genes that encode BMP1-related proteinases (Bmp1 and Tll1) post-natally results in brittle bones, periodontal defects, and thin skin in conditional knockout (BTKO) mice. Despite the importance of collagen to cardiovascular tissues and the adverse effects of Bmp1 and Tll1 ablation in other tissues, the impact of Bmp1 and Tll1 ablation on cardiovascular performance is unknown. Here, we investigated the role of Bmp1- and Tll1-ablation in cardiovascular tissues by examining ventricular and vascular structure and function in BTKO mice. Methods Ventricular and vascular structure and function were comprehensively quantified in BTKO mice (n=9) and in age- and sex-matched controls (n=9). Echocardiography, cardiac catheterization, and biaxial ex vivo arterial mechanical testing were performed to assess tissue function, and histological staining was used to measure collagen protein content. Results Bmp1- and Tll1-ablation resulted in maintained hemodynamics and cardiovascular function, preserved biaxial arterial compliance, and comparable ventricular and vascular collagen protein content. Conclusions Maintained ventricular and vascular structure and function despite post-natal ablation of Bmp1 and Tll1 suggests that there is an as-yet unidentified compensatory mechanism in cardiovascular tissues. In addition, these findings suggest that proteinases derived from Bmp1 and Tll1 post-natally have less of an impact on cardiovascular tissues compared to skeletal, periodontal, and dermal tissues.
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Affiliation(s)
- Mark J Golob
- Department of Biomedical Engineering, University of Wisconsin-Madison College of Engineering, Madison, WI 53706 USA
| | - Dawiyat Massoudi
- Department of Cell and Regenerative Biology, University of Wisconsin-Madison School of Medicine and Public Health, Madison, WI 53706 USA
| | - Diana M Tabima
- Department of Biomedical Engineering, University of Wisconsin-Madison College of Engineering, Madison, WI 53706 USA
| | - James L Johnston
- Department of Biomedical Engineering, University of Wisconsin-Madison College of Engineering, Madison, WI 53706 USA
| | - Gregory D Wolf
- Department of Biomedical Engineering, University of Wisconsin-Madison College of Engineering, Madison, WI 53706 USA
| | - Timothy A Hacker
- Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison, WI 53706 USA
| | - Daniel S Greenspan
- Department of Cell and Regenerative Biology, University of Wisconsin-Madison School of Medicine and Public Health, Madison, WI 53706 USA
| | - Naomi C Chesler
- Department of Biomedical Engineering, University of Wisconsin-Madison College of Engineering, Madison, WI 53706 USA.,Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison, WI 53706 USA
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10
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Madrigal-Matute J, Martinez-Pinna R, Ramos-Mozo P, Blanco-Colio L, Moreno J, Tarin C, Burillo E, Fernandez-Garcia C, Egido J, Meilhac O, Michel JB, Martin-Ventura J. Erythrocytes, leukocytes and platelets as a source of oxidative stress in chronic vascular diseases: Detoxifying mechanisms and potential therapeutic options. Thromb Haemost 2017; 108:435-42. [DOI: 10.1160/th12-04-0248] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2012] [Accepted: 06/21/2012] [Indexed: 12/15/2022]
Abstract
SummaryOxidative stress is involved in the chronic pathological vascular remodelling of both abdominal aortic aneurysm and occlusive atherosclerosis. Red blood cells (RBCs), leukocytes and platelets present in both, aneurysmal intraluminal thrombus and intraplaque haemorraghes, could be involved in the redox imbalance inside diseased arterial tissues. RBCs haemolysis may release the pro-oxidant haemoglobin (Hb), which transfers heme to tissue and low-density lipoproteins. Heme-iron potentiates molecular, cell and tissue toxicity mediated by leukocytes and other sources of reactive oxygen species (ROS). Polymorphonuclear neutrophils release myeloperoxidase and, along with activated platelets, produce superoxide mediated by NADPH oxidase, causing oxidative damage. In response to this pro-oxidant milieu, several anti-oxidant molecules of plasma or cell origin can prevent ROS production. Free Hb binds to haptoglobin (Hp) and once Hp-Hb complex is endocytosed by CD163, liberated heme is converted into less toxic compounds by heme oxygenase-1. Iron homeostasis is mainly regulated by transferrin, which transports ferric ions to other cells. Transferrin-bound iron is internalised via endocytosis mediated by transferrin receptor. Once inside the cell, iron is mainly stored by ferritin. Other non hemo-iron related antioxidant enzymes (e.g. superoxide dismutase, catalase, thioredoxin and peroxiredoxin) are also involved in redox modulation in vascular remodelling. Oxidative stress is a main determinant of chronic pathological remodelling of the arterial wall, partially linked to the presence of RBCs, leukocytes, platelets and oxidised fibrin within tissue and to the imbalance between pro-/anti-oxidant molecules. Understanding the complex mechanisms underlying redox imbalance could help to define novel potential targets to decrease atherothrombotic risk.
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11
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Park AC, Phan N, Massoudi D, Liu Z, Kernien JF, Adams SM, Davidson JM, Birk DE, Liu B, Greenspan DS. Deficits in Col5a2 Expression Result in Novel Skin and Adipose Abnormalities and Predisposition to Aortic Aneurysms and Dissections. THE AMERICAN JOURNAL OF PATHOLOGY 2017; 187:2300-2311. [PMID: 28734943 DOI: 10.1016/j.ajpath.2017.06.006] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Revised: 06/07/2017] [Accepted: 06/08/2017] [Indexed: 12/15/2022]
Abstract
Classic Ehlers-Danlos syndrome (cEDS) is characterized by fragile, hyperextensible skin and hypermobile joints. cEDS can be caused by heterozygosity for missense mutations in genes COL5A2 and COL5A1, which encode the α2(V) and α1(V) chains, respectively, of collagen V, and is most often caused by COL5A1 null alleles. However, COL5A2 null alleles have yet to be associated with cEDS or other human pathologies. We previously showed that mice homozygous null for the α2(V) gene Col5a2 are early embryonic lethal, whereas haploinsufficiency caused aberrancies of adult skin, but not a frank cEDS-like phenotype, as skin hyperextensibility at low strain and dermal cauliflower-contoured collagen fibril aggregates, two cEDS hallmarks, were absent. Herein, we show that ubiquitous postnatal Col5a2 knockdown results in pathognomonic dermal cauliflower-contoured collagen fibril aggregates, but absence of skin hyperextensibility, demonstrating these cEDS hallmarks to arise separately from loss of collagen V roles in control of collagen fibril growth and nucleation events, respectively. Col5a2 knockdown also led to loss of dermal white adipose tissue (WAT) and markedly decreased abdominal WAT that was characterized by miniadipocytes and increased collagen deposition, suggesting α2(V) to be important to WAT development/maintenance. More important, Col5a2 haploinsufficiency markedly increased the incidence and severity of abdominal aortic aneurysms, and caused aortic arch ruptures and dissections, indicating that α2(V) chain deficits may play roles in these pathologies in humans.
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Affiliation(s)
- Arick C Park
- Department of Cell and Regenerative Biology, University of Wisconsin, Madison, Wisconsin
| | - Noel Phan
- Department of Surgery, University of Wisconsin, Madison, Wisconsin
| | - Dawiyat Massoudi
- Department of Cell and Regenerative Biology, University of Wisconsin, Madison, Wisconsin
| | - Zhenjie Liu
- Department of Surgery, University of Wisconsin, Madison, Wisconsin
| | - John F Kernien
- Department of Cell and Regenerative Biology, University of Wisconsin, Madison, Wisconsin
| | - Sheila M Adams
- Department of Molecular Pharmacology and Physiology, Morsani College of Medicine, University of South Florida, Tampa, Florida
| | - Jeffrey M Davidson
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University, Nashville, Tennessee
| | - David E Birk
- Department of Molecular Pharmacology and Physiology, Morsani College of Medicine, University of South Florida, Tampa, Florida
| | - Bo Liu
- Department of Surgery, University of Wisconsin, Madison, Wisconsin
| | - Daniel S Greenspan
- Department of Cell and Regenerative Biology, University of Wisconsin, Madison, Wisconsin.
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12
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Inhibition of hypoxia inducible factor-1α attenuates abdominal aortic aneurysm progression through the down-regulation of matrix metalloproteinases. Sci Rep 2016; 6:28612. [PMID: 27363580 PMCID: PMC4929442 DOI: 10.1038/srep28612] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2016] [Accepted: 06/06/2016] [Indexed: 12/19/2022] Open
Abstract
Hypoxia inducible factor-1α (HIF-1α) pathway is associated with many vascular diseases, including atherosclerosis, arterial aneurysms, pulmonary hypertension and chronic venous diseases. Significant HIF-1α expression could be found at the rupture edge at human abdominal aortic aneurysm (AAA) tissues. While our initial in vitro experiments had shown that deferoxamine (DFO) could attenuate angiotensin II (AngII) induced endothelial activations; we unexpectedly found that DFO augmented the severity of AngII-induced AAA, at least partly through increased accumulation of HIF-1α. The findings promoted us to test whether aneurysmal prone factors could up-regulate the expression of MMP-2 and MMP-9 through aberrantly increased HIF-1α and promote AAA development. AngII induced AAA in hyperlipidemic mice model was used. DFO, as a prolyl hydroxylase inhibitor, stabilized HIF-1α and augmented MMPs activities. Aneurysmal-prone factors induced HIF-1α can cause overexpression of MMP-2 and MMP-9 and promote aneurysmal progression. Pharmacological HIF-1α inhibitors, digoxin and 2-ME could ameliorate AngII induced AAA in vivo. HIF-1α is pivotal for the development of AAA. Our study provides a rationale for using HIF-1α inhibitors as an adjunctive medical therapy in addition to current cardiovascular risk-reducing regimens.
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13
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Li L, Yang X, Dusting GJ, Wu Z, Jiang F. Increased Oxidative Stress and Xanthine Oxidase Activity in Human Ruptured Cerebral Aneurysms. Neuroradiol J 2016; 20:545-50. [DOI: 10.1177/197140090702000512] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2007] [Accepted: 07/20/2007] [Indexed: 11/15/2022] Open
Abstract
Recent studies have suggested that oxidative stress may be involved in the development of arterial aneurysms. Xanthine oxidase is implicated in the generation of reactive oxygen species under pathological conditions in the cardiovascular system, and increased xanthine oxidase activity has been reported in human aortic aneurysms. We, therefore, studied the changes of xanthine oxidase activity and oxidative stress in human ruptured cerebral aneurysms. Six cerebral aneurysmal samples were obtained during surgery. Normal arteries of the similar size (one superficial temporal artery, four uterine arteries and three right gastroepiploic arteries) were used as controls. The xanthine oxidase activity was measured with a commercial assay kit, and its expression was localized by immunohistochemistry. The xanthine oxidase activity was significantly increased in aneurysms by 4.1 fold (P<0.05) compared to control arteries. This was accompanied by an elevated malondialdehyde (MDA) level (8.3±5.1 versus 2.9±0.7 nmol/g protein, mean ±SD, P<0.05), a marker of oxidative stress. Immunohistochemistry established that xanthine oxidase was mainly expressed in infiltrating inflammatory cells. Our study indicates that xanthine oxidase may have an important role in the increased oxidative stress in ruptured cerebral aneurysms. Further studies are needed to clarify the role of XO-derived reactive oxygen species in the development and rupture of cerebral aneurysms.
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Affiliation(s)
- Li Li
- Department of Interventional Neuroradiology, Beijing Neurosurgical Institute, Capital Medical University; Beijing, China
| | - Xinjian Yang
- Department of Interventional Neuroradiology, Beijing Neurosurgical Institute, Capital Medical University; Beijing, China
| | - Gregory J Dusting
- Bernard O'Brien Institute of Microsurgery, University of Melbourne; Victoria, Australia
| | - Zhongxue Wu
- Department of Interventional Neuroradiology, Beijing Neurosurgical Institute, Capital Medical University; Beijing, China
| | - Fan Jiang
- Bernard O'Brien Institute of Microsurgery, University of Melbourne; Victoria, Australia
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14
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Abstract
Abdominal aortic aneurysm (AAA) is a significant cause of mortality in older adults. A key mechanism implicated in AAA pathogenesis is inflammation and the associated production of reactive oxygen species (ROS) and oxidative stress. These have been suggested to promote degradation of the extracellular matrix (ECM) and vascular smooth muscle apoptosis. Experimental and human association studies suggest that ROS can be favourably modified to limit AAA formation and progression. In the present review, we discuss mechanisms potentially linking ROS to AAA pathogenesis and highlight potential treatment strategies targeting ROS. Currently, none of these strategies has been shown to be effective in clinical practice.
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15
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Tarín C, Fernandez-Garcia CE, Burillo E, Pastor-Vargas C, Llamas-Granda P, Castejón B, Ramos-Mozo P, Torres-Fonseca MM, Berger T, Mak TW, Egido J, Blanco-Colio LM, Martín-Ventura JL. Lipocalin-2 deficiency or blockade protects against aortic abdominal aneurysm development in mice. Cardiovasc Res 2016; 111:262-73. [DOI: 10.1093/cvr/cvw112] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2015] [Accepted: 05/21/2016] [Indexed: 11/13/2022] Open
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16
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Wáng YXJ, He J, Zhang L, Li Y, Zhao L, Liu H, Yang L, Zeng XJ, Yang J, Peng GM, Ahuja A, Yang ZH. A higher aneurysmal subarachnoid hemorrhage incidence in women prior to menopause: a retrospective analysis of 4,895 cases from eight hospitals in China. Quant Imaging Med Surg 2016; 6:151-6. [PMID: 27190767 DOI: 10.21037/qims.2016.01.06] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
BACKGROUND Subarachnoid hemorrhage (SAH) from a ruptured cerebral aneurysm is a devastating disease. Despite the risk factors, including hypertension, cigarette smoking and alcohol use, are more common in men, aneurysmal SAH belongs to a few diseases which the incidence is higher in women than in men. Sex hormones, especially estrogen, might be protective against this condition. Hormone replacement therapy (HRT) seems to be associated with a reduced risk for aneurysmal SAH. This study aims to know the prevalence of aneurysmal SAH of men and women at different ages. METHODS The age and gender information of 4,895 case of aneurysmal SAH (3,016 females, 1,879 males) were collected retrospectively from eight institutions in mainland China. The prevalence of aneurysmal SAH of men and women at different ages was analyzed. RESULTS The data showed women had a higher incidence of aneurysmal SAH than men starting at late thirties, and men might have a higher incidence of aneurysmal SAH than women only before 37-year-old. CONCLUSIONS Menopause may not be the only dominant factor causing higher incidence of aneurysmal SAH in women than in men.
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Affiliation(s)
- Yì Xiáng J Wáng
- 1 Department of Imaging and Interventional Radiology, The Chinese University of Hong Kong, Shatin, Prince of Wales Hospital, New Territories, Hong Kong SAR, China ; 2 Department of Radiology, Nanjing Drum Tower Hospital, Nanjing University Medical School, Nanjing 210008, China ; 3 Department of Neurology, 4 Department of Neurosurgery, The Second Hospital of Hebei Medical University, Shijiazhuang 050000, China ; 5 Department of Radiology, The Affiliated Hospital of Zunyi Medical University, Zunyi 563003, China ; 6 Department of Radiology, The First Affiliated Hospital of Nanchang University, Nanchang 330006, China ; 7 Department of Radiology, North Sichuan Medical College Hospital, Nanchong 637000, China ; 8 Department of Radiology, The First Affiliated Hospital of Xi'an Jiao Tong University, Xi'an 710061, China ; 9 Department of Radiology, The General Hospital of Guangzhou Military Command, Guangzhou 510010, China ; 10 Department of Radiology, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - Jian He
- 1 Department of Imaging and Interventional Radiology, The Chinese University of Hong Kong, Shatin, Prince of Wales Hospital, New Territories, Hong Kong SAR, China ; 2 Department of Radiology, Nanjing Drum Tower Hospital, Nanjing University Medical School, Nanjing 210008, China ; 3 Department of Neurology, 4 Department of Neurosurgery, The Second Hospital of Hebei Medical University, Shijiazhuang 050000, China ; 5 Department of Radiology, The Affiliated Hospital of Zunyi Medical University, Zunyi 563003, China ; 6 Department of Radiology, The First Affiliated Hospital of Nanchang University, Nanchang 330006, China ; 7 Department of Radiology, North Sichuan Medical College Hospital, Nanchong 637000, China ; 8 Department of Radiology, The First Affiliated Hospital of Xi'an Jiao Tong University, Xi'an 710061, China ; 9 Department of Radiology, The General Hospital of Guangzhou Military Command, Guangzhou 510010, China ; 10 Department of Radiology, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - Lihong Zhang
- 1 Department of Imaging and Interventional Radiology, The Chinese University of Hong Kong, Shatin, Prince of Wales Hospital, New Territories, Hong Kong SAR, China ; 2 Department of Radiology, Nanjing Drum Tower Hospital, Nanjing University Medical School, Nanjing 210008, China ; 3 Department of Neurology, 4 Department of Neurosurgery, The Second Hospital of Hebei Medical University, Shijiazhuang 050000, China ; 5 Department of Radiology, The Affiliated Hospital of Zunyi Medical University, Zunyi 563003, China ; 6 Department of Radiology, The First Affiliated Hospital of Nanchang University, Nanchang 330006, China ; 7 Department of Radiology, North Sichuan Medical College Hospital, Nanchong 637000, China ; 8 Department of Radiology, The First Affiliated Hospital of Xi'an Jiao Tong University, Xi'an 710061, China ; 9 Department of Radiology, The General Hospital of Guangzhou Military Command, Guangzhou 510010, China ; 10 Department of Radiology, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - Yao Li
- 1 Department of Imaging and Interventional Radiology, The Chinese University of Hong Kong, Shatin, Prince of Wales Hospital, New Territories, Hong Kong SAR, China ; 2 Department of Radiology, Nanjing Drum Tower Hospital, Nanjing University Medical School, Nanjing 210008, China ; 3 Department of Neurology, 4 Department of Neurosurgery, The Second Hospital of Hebei Medical University, Shijiazhuang 050000, China ; 5 Department of Radiology, The Affiliated Hospital of Zunyi Medical University, Zunyi 563003, China ; 6 Department of Radiology, The First Affiliated Hospital of Nanchang University, Nanchang 330006, China ; 7 Department of Radiology, North Sichuan Medical College Hospital, Nanchong 637000, China ; 8 Department of Radiology, The First Affiliated Hospital of Xi'an Jiao Tong University, Xi'an 710061, China ; 9 Department of Radiology, The General Hospital of Guangzhou Military Command, Guangzhou 510010, China ; 10 Department of Radiology, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - Lin Zhao
- 1 Department of Imaging and Interventional Radiology, The Chinese University of Hong Kong, Shatin, Prince of Wales Hospital, New Territories, Hong Kong SAR, China ; 2 Department of Radiology, Nanjing Drum Tower Hospital, Nanjing University Medical School, Nanjing 210008, China ; 3 Department of Neurology, 4 Department of Neurosurgery, The Second Hospital of Hebei Medical University, Shijiazhuang 050000, China ; 5 Department of Radiology, The Affiliated Hospital of Zunyi Medical University, Zunyi 563003, China ; 6 Department of Radiology, The First Affiliated Hospital of Nanchang University, Nanchang 330006, China ; 7 Department of Radiology, North Sichuan Medical College Hospital, Nanchong 637000, China ; 8 Department of Radiology, The First Affiliated Hospital of Xi'an Jiao Tong University, Xi'an 710061, China ; 9 Department of Radiology, The General Hospital of Guangzhou Military Command, Guangzhou 510010, China ; 10 Department of Radiology, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - Heng Liu
- 1 Department of Imaging and Interventional Radiology, The Chinese University of Hong Kong, Shatin, Prince of Wales Hospital, New Territories, Hong Kong SAR, China ; 2 Department of Radiology, Nanjing Drum Tower Hospital, Nanjing University Medical School, Nanjing 210008, China ; 3 Department of Neurology, 4 Department of Neurosurgery, The Second Hospital of Hebei Medical University, Shijiazhuang 050000, China ; 5 Department of Radiology, The Affiliated Hospital of Zunyi Medical University, Zunyi 563003, China ; 6 Department of Radiology, The First Affiliated Hospital of Nanchang University, Nanchang 330006, China ; 7 Department of Radiology, North Sichuan Medical College Hospital, Nanchong 637000, China ; 8 Department of Radiology, The First Affiliated Hospital of Xi'an Jiao Tong University, Xi'an 710061, China ; 9 Department of Radiology, The General Hospital of Guangzhou Military Command, Guangzhou 510010, China ; 10 Department of Radiology, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - Lin Yang
- 1 Department of Imaging and Interventional Radiology, The Chinese University of Hong Kong, Shatin, Prince of Wales Hospital, New Territories, Hong Kong SAR, China ; 2 Department of Radiology, Nanjing Drum Tower Hospital, Nanjing University Medical School, Nanjing 210008, China ; 3 Department of Neurology, 4 Department of Neurosurgery, The Second Hospital of Hebei Medical University, Shijiazhuang 050000, China ; 5 Department of Radiology, The Affiliated Hospital of Zunyi Medical University, Zunyi 563003, China ; 6 Department of Radiology, The First Affiliated Hospital of Nanchang University, Nanchang 330006, China ; 7 Department of Radiology, North Sichuan Medical College Hospital, Nanchong 637000, China ; 8 Department of Radiology, The First Affiliated Hospital of Xi'an Jiao Tong University, Xi'an 710061, China ; 9 Department of Radiology, The General Hospital of Guangzhou Military Command, Guangzhou 510010, China ; 10 Department of Radiology, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - Xian Jun Zeng
- 1 Department of Imaging and Interventional Radiology, The Chinese University of Hong Kong, Shatin, Prince of Wales Hospital, New Territories, Hong Kong SAR, China ; 2 Department of Radiology, Nanjing Drum Tower Hospital, Nanjing University Medical School, Nanjing 210008, China ; 3 Department of Neurology, 4 Department of Neurosurgery, The Second Hospital of Hebei Medical University, Shijiazhuang 050000, China ; 5 Department of Radiology, The Affiliated Hospital of Zunyi Medical University, Zunyi 563003, China ; 6 Department of Radiology, The First Affiliated Hospital of Nanchang University, Nanchang 330006, China ; 7 Department of Radiology, North Sichuan Medical College Hospital, Nanchong 637000, China ; 8 Department of Radiology, The First Affiliated Hospital of Xi'an Jiao Tong University, Xi'an 710061, China ; 9 Department of Radiology, The General Hospital of Guangzhou Military Command, Guangzhou 510010, China ; 10 Department of Radiology, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - Jian Yang
- 1 Department of Imaging and Interventional Radiology, The Chinese University of Hong Kong, Shatin, Prince of Wales Hospital, New Territories, Hong Kong SAR, China ; 2 Department of Radiology, Nanjing Drum Tower Hospital, Nanjing University Medical School, Nanjing 210008, China ; 3 Department of Neurology, 4 Department of Neurosurgery, The Second Hospital of Hebei Medical University, Shijiazhuang 050000, China ; 5 Department of Radiology, The Affiliated Hospital of Zunyi Medical University, Zunyi 563003, China ; 6 Department of Radiology, The First Affiliated Hospital of Nanchang University, Nanchang 330006, China ; 7 Department of Radiology, North Sichuan Medical College Hospital, Nanchong 637000, China ; 8 Department of Radiology, The First Affiliated Hospital of Xi'an Jiao Tong University, Xi'an 710061, China ; 9 Department of Radiology, The General Hospital of Guangzhou Military Command, Guangzhou 510010, China ; 10 Department of Radiology, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - Guang Ming Peng
- 1 Department of Imaging and Interventional Radiology, The Chinese University of Hong Kong, Shatin, Prince of Wales Hospital, New Territories, Hong Kong SAR, China ; 2 Department of Radiology, Nanjing Drum Tower Hospital, Nanjing University Medical School, Nanjing 210008, China ; 3 Department of Neurology, 4 Department of Neurosurgery, The Second Hospital of Hebei Medical University, Shijiazhuang 050000, China ; 5 Department of Radiology, The Affiliated Hospital of Zunyi Medical University, Zunyi 563003, China ; 6 Department of Radiology, The First Affiliated Hospital of Nanchang University, Nanchang 330006, China ; 7 Department of Radiology, North Sichuan Medical College Hospital, Nanchong 637000, China ; 8 Department of Radiology, The First Affiliated Hospital of Xi'an Jiao Tong University, Xi'an 710061, China ; 9 Department of Radiology, The General Hospital of Guangzhou Military Command, Guangzhou 510010, China ; 10 Department of Radiology, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - Anil Ahuja
- 1 Department of Imaging and Interventional Radiology, The Chinese University of Hong Kong, Shatin, Prince of Wales Hospital, New Territories, Hong Kong SAR, China ; 2 Department of Radiology, Nanjing Drum Tower Hospital, Nanjing University Medical School, Nanjing 210008, China ; 3 Department of Neurology, 4 Department of Neurosurgery, The Second Hospital of Hebei Medical University, Shijiazhuang 050000, China ; 5 Department of Radiology, The Affiliated Hospital of Zunyi Medical University, Zunyi 563003, China ; 6 Department of Radiology, The First Affiliated Hospital of Nanchang University, Nanchang 330006, China ; 7 Department of Radiology, North Sichuan Medical College Hospital, Nanchong 637000, China ; 8 Department of Radiology, The First Affiliated Hospital of Xi'an Jiao Tong University, Xi'an 710061, China ; 9 Department of Radiology, The General Hospital of Guangzhou Military Command, Guangzhou 510010, China ; 10 Department of Radiology, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - Zheng Han Yang
- 1 Department of Imaging and Interventional Radiology, The Chinese University of Hong Kong, Shatin, Prince of Wales Hospital, New Territories, Hong Kong SAR, China ; 2 Department of Radiology, Nanjing Drum Tower Hospital, Nanjing University Medical School, Nanjing 210008, China ; 3 Department of Neurology, 4 Department of Neurosurgery, The Second Hospital of Hebei Medical University, Shijiazhuang 050000, China ; 5 Department of Radiology, The Affiliated Hospital of Zunyi Medical University, Zunyi 563003, China ; 6 Department of Radiology, The First Affiliated Hospital of Nanchang University, Nanchang 330006, China ; 7 Department of Radiology, North Sichuan Medical College Hospital, Nanchong 637000, China ; 8 Department of Radiology, The First Affiliated Hospital of Xi'an Jiao Tong University, Xi'an 710061, China ; 9 Department of Radiology, The General Hospital of Guangzhou Military Command, Guangzhou 510010, China ; 10 Department of Radiology, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
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17
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Paraoxonase-1 overexpression prevents experimental abdominal aortic aneurysm progression. Clin Sci (Lond) 2016; 130:1027-38. [DOI: 10.1042/cs20160185] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2016] [Accepted: 03/16/2016] [Indexed: 01/23/2023]
Abstract
Decreased paraoxonase-1 (PON1) activity is associated with human and experimental abdominal aortic aneurysm (AAA). Overexpression of PON1 protected mice from AAA development induced by elastase, decreasing oxidative stress, apoptosis and inflammation. PON1 may provide a novel therapeutic target for AAA prevention.
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18
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Relationship between Postmenopausal Estrogen Deficiency and Aneurysmal Subarachnoid Hemorrhage. Behav Neurol 2015; 2015:720141. [PMID: 26538819 PMCID: PMC4619901 DOI: 10.1155/2015/720141] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2015] [Revised: 07/09/2015] [Accepted: 08/02/2015] [Indexed: 11/18/2022] Open
Abstract
Aneurysmal subarachnoid hemorrhage (SAH) is one of the most severe forms of stroke, which results from the rupture of a cerebral aneurysm. SAH is the only type of stroke with a female predominance, suggesting that reproductive factors may play a significant role in the etiology. Estrogen has important effects on vascular physiology and pathophysiology of cerebral aneurysm and SAH and, thus, potential therapeutic implications. There have been growing bodies of epidemiological and experimental studies which support the hypothesis of a significant relationship between estrogen deficiency and cerebral aneurysm formation with subsequent SAH. This hypothesis is the focus of this review as well as possible pathology-based therapeutics with regard to aspects of molecular pathophysiology, especially related to women's health.
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19
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Bhamidipati CM, Whatling CA, Mehta GS, Meher AK, Hajzus VA, Su G, Salmon M, Upchurch GR, Owens GK, Ailawadi G. 5-Lipoxygenase pathway in experimental abdominal aortic aneurysms. Arterioscler Thromb Vasc Biol 2014; 34:2669-78. [PMID: 25324573 PMCID: PMC4239157 DOI: 10.1161/atvbaha.114.304016] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
OBJECTIVE The impact of leukotriene production by the 5-lipoxygenase (5-LO) pathway in the pathophysiology of abdominal aortic aneurysms (AAAs) has been debated. Moreover, a clear mechanism through which 5-LO influences AAA remains unclear. APPROACH AND RESULTS Aneurysm formation was attenuated in 5-LO(-/-) mice, and in lethally irradiated wild-type mice reconstituted with 5-LO(-/-) bone marrow in an elastase perfusion model. Pharmacological inhibition of 5-LO-attenuated aneurysm formation in both aortic elastase perfused wild-type and angiotensin II-treated LDLr(-/-) (low-density lipoprotein receptor) mice, with resultant preservation of elastin and fewer 5-LO and MMP9 (matrix metalloproteinase)-producing cells. Separately, analysis of wild-type mice 7 days after elastase perfusion showed that 5-LO inhibition was associated with reduced polymorphonuclear leukocyte infiltration to the aortic wall. Importantly, 5-LO inhibition initiated 3 days after elastase perfusion in wild-type mice arrested progression of small AAA. Human AAA and control aorta corroborated these elastin and 5-LO expression patterns. CONCLUSIONS Inhibition of 5-LO by pharmacological or genetic approaches attenuates aneurysm formation and prevents fragmentation of the medial layer in 2 unique AAA models. Administration of 5-LO inhibitor in small AAA slows progression of AAA. Targeted interruption of the 5-LO pathway is a potential treatment strategy in AAA.
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MESH Headings
- Aged
- Angiotensin II/metabolism
- Animals
- Aorta, Abdominal/drug effects
- Aorta, Abdominal/enzymology
- Aorta, Abdominal/pathology
- Aortic Aneurysm, Abdominal/enzymology
- Aortic Aneurysm, Abdominal/etiology
- Aortic Aneurysm, Abdominal/pathology
- Arachidonate 5-Lipoxygenase/deficiency
- Arachidonate 5-Lipoxygenase/genetics
- Arachidonate 5-Lipoxygenase/metabolism
- Bone Marrow Transplantation
- Disease Models, Animal
- Disease Progression
- Humans
- Hypercholesterolemia/complications
- Hypercholesterolemia/enzymology
- Lipoxygenase Inhibitors/pharmacology
- Male
- Matrix Metalloproteinase 9/biosynthesis
- Mice
- Mice, Inbred C57BL
- Mice, Knockout
- Middle Aged
- Neutrophil Infiltration
- Pancreatic Elastase/metabolism
- Receptors, LDL/deficiency
- Receptors, LDL/genetics
- Signal Transduction
- Transplantation Chimera/metabolism
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Affiliation(s)
- Castigliano M Bhamidipati
- From the Division of Thoracic and Cardiovascular Surgery, Department of Surgery (C.M.B., A.K.M., V.A.H., G.A.), Department of Surgery (G.S.M.), Division of Vascular and Endovascular Surgery, Department of Surgery (G.S., G.R.U.), Department of Molecular Physiology and Biological Physics (M.S., G.K.O.), Department of Molecular Physiology and Biological Physics, Robert M. Berne Cardiovascular Research Center (G.R.U., G.K.O., G.A.), and Department of Biomedical Engineering (G.A.), University of Virginia School of Medicine, Charlottesville; and Cardiovascular Disease Section, Bioscience Department, AstraZeneca R&D, Mölndal, Sweden (C.A.W.)
| | - Carl A Whatling
- From the Division of Thoracic and Cardiovascular Surgery, Department of Surgery (C.M.B., A.K.M., V.A.H., G.A.), Department of Surgery (G.S.M.), Division of Vascular and Endovascular Surgery, Department of Surgery (G.S., G.R.U.), Department of Molecular Physiology and Biological Physics (M.S., G.K.O.), Department of Molecular Physiology and Biological Physics, Robert M. Berne Cardiovascular Research Center (G.R.U., G.K.O., G.A.), and Department of Biomedical Engineering (G.A.), University of Virginia School of Medicine, Charlottesville; and Cardiovascular Disease Section, Bioscience Department, AstraZeneca R&D, Mölndal, Sweden (C.A.W.)
| | - Gaurav S Mehta
- From the Division of Thoracic and Cardiovascular Surgery, Department of Surgery (C.M.B., A.K.M., V.A.H., G.A.), Department of Surgery (G.S.M.), Division of Vascular and Endovascular Surgery, Department of Surgery (G.S., G.R.U.), Department of Molecular Physiology and Biological Physics (M.S., G.K.O.), Department of Molecular Physiology and Biological Physics, Robert M. Berne Cardiovascular Research Center (G.R.U., G.K.O., G.A.), and Department of Biomedical Engineering (G.A.), University of Virginia School of Medicine, Charlottesville; and Cardiovascular Disease Section, Bioscience Department, AstraZeneca R&D, Mölndal, Sweden (C.A.W.)
| | - Akshaya K Meher
- From the Division of Thoracic and Cardiovascular Surgery, Department of Surgery (C.M.B., A.K.M., V.A.H., G.A.), Department of Surgery (G.S.M.), Division of Vascular and Endovascular Surgery, Department of Surgery (G.S., G.R.U.), Department of Molecular Physiology and Biological Physics (M.S., G.K.O.), Department of Molecular Physiology and Biological Physics, Robert M. Berne Cardiovascular Research Center (G.R.U., G.K.O., G.A.), and Department of Biomedical Engineering (G.A.), University of Virginia School of Medicine, Charlottesville; and Cardiovascular Disease Section, Bioscience Department, AstraZeneca R&D, Mölndal, Sweden (C.A.W.)
| | - Vanessa A Hajzus
- From the Division of Thoracic and Cardiovascular Surgery, Department of Surgery (C.M.B., A.K.M., V.A.H., G.A.), Department of Surgery (G.S.M.), Division of Vascular and Endovascular Surgery, Department of Surgery (G.S., G.R.U.), Department of Molecular Physiology and Biological Physics (M.S., G.K.O.), Department of Molecular Physiology and Biological Physics, Robert M. Berne Cardiovascular Research Center (G.R.U., G.K.O., G.A.), and Department of Biomedical Engineering (G.A.), University of Virginia School of Medicine, Charlottesville; and Cardiovascular Disease Section, Bioscience Department, AstraZeneca R&D, Mölndal, Sweden (C.A.W.)
| | - Gang Su
- From the Division of Thoracic and Cardiovascular Surgery, Department of Surgery (C.M.B., A.K.M., V.A.H., G.A.), Department of Surgery (G.S.M.), Division of Vascular and Endovascular Surgery, Department of Surgery (G.S., G.R.U.), Department of Molecular Physiology and Biological Physics (M.S., G.K.O.), Department of Molecular Physiology and Biological Physics, Robert M. Berne Cardiovascular Research Center (G.R.U., G.K.O., G.A.), and Department of Biomedical Engineering (G.A.), University of Virginia School of Medicine, Charlottesville; and Cardiovascular Disease Section, Bioscience Department, AstraZeneca R&D, Mölndal, Sweden (C.A.W.)
| | - Morgan Salmon
- From the Division of Thoracic and Cardiovascular Surgery, Department of Surgery (C.M.B., A.K.M., V.A.H., G.A.), Department of Surgery (G.S.M.), Division of Vascular and Endovascular Surgery, Department of Surgery (G.S., G.R.U.), Department of Molecular Physiology and Biological Physics (M.S., G.K.O.), Department of Molecular Physiology and Biological Physics, Robert M. Berne Cardiovascular Research Center (G.R.U., G.K.O., G.A.), and Department of Biomedical Engineering (G.A.), University of Virginia School of Medicine, Charlottesville; and Cardiovascular Disease Section, Bioscience Department, AstraZeneca R&D, Mölndal, Sweden (C.A.W.)
| | - Gilbert R Upchurch
- From the Division of Thoracic and Cardiovascular Surgery, Department of Surgery (C.M.B., A.K.M., V.A.H., G.A.), Department of Surgery (G.S.M.), Division of Vascular and Endovascular Surgery, Department of Surgery (G.S., G.R.U.), Department of Molecular Physiology and Biological Physics (M.S., G.K.O.), Department of Molecular Physiology and Biological Physics, Robert M. Berne Cardiovascular Research Center (G.R.U., G.K.O., G.A.), and Department of Biomedical Engineering (G.A.), University of Virginia School of Medicine, Charlottesville; and Cardiovascular Disease Section, Bioscience Department, AstraZeneca R&D, Mölndal, Sweden (C.A.W.)
| | - Gary K Owens
- From the Division of Thoracic and Cardiovascular Surgery, Department of Surgery (C.M.B., A.K.M., V.A.H., G.A.), Department of Surgery (G.S.M.), Division of Vascular and Endovascular Surgery, Department of Surgery (G.S., G.R.U.), Department of Molecular Physiology and Biological Physics (M.S., G.K.O.), Department of Molecular Physiology and Biological Physics, Robert M. Berne Cardiovascular Research Center (G.R.U., G.K.O., G.A.), and Department of Biomedical Engineering (G.A.), University of Virginia School of Medicine, Charlottesville; and Cardiovascular Disease Section, Bioscience Department, AstraZeneca R&D, Mölndal, Sweden (C.A.W.)
| | - Gorav Ailawadi
- From the Division of Thoracic and Cardiovascular Surgery, Department of Surgery (C.M.B., A.K.M., V.A.H., G.A.), Department of Surgery (G.S.M.), Division of Vascular and Endovascular Surgery, Department of Surgery (G.S., G.R.U.), Department of Molecular Physiology and Biological Physics (M.S., G.K.O.), Department of Molecular Physiology and Biological Physics, Robert M. Berne Cardiovascular Research Center (G.R.U., G.K.O., G.A.), and Department of Biomedical Engineering (G.A.), University of Virginia School of Medicine, Charlottesville; and Cardiovascular Disease Section, Bioscience Department, AstraZeneca R&D, Mölndal, Sweden (C.A.W.).
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Schmit BM, Yang P, Fu C, DeSart K, Berceli SA, Jiang Z. Hypertension overrides the protective effect of female hormones on the development of aortic aneurysm secondary to Alk5 deficiency via ERK activation. Am J Physiol Heart Circ Physiol 2014; 308:H115-25. [PMID: 25398982 DOI: 10.1152/ajpheart.00521.2014] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The prevalence of aortic aneurysm is five times higher in men than women among the general population. Similar sexual dimorphism also exists in syndromic aortic aneurysms triggered by TGF-β signaling disorders. To understand the responsible mechanisms, we developed an animal model where inducible deletion of the type I TGF-β receptor, Alk5, specifically in smooth muscle cells (Alk5iko) causes spontaneous aortic aneurysm formation. This model recapitulated an extreme scenario of the dimorphism in aortic aneurysm development between genders. In a comparative experiment, all Alk5iko males (n=42) developed aortic aneurysms and 26% of them died prematurely from aortic rupture. In contrast, the Alk5iko females (n=14) presented only a subclinical phenotype characteristic of scarcely scattered elastin breaks. Removal of male hormones via orchiectomy (n=7) resulted in only minimal influence on aortic pathology. However, reduction of female hormones via ovariectomy (n=15) increased the phenotypic penetrance from zero to 53%. Finally, an elevation of systolic blood pressure by 30 points unmasked the subclinical phenotype of Alk5iko females (n=17) to 59%. This exaggerated phenotypic penetrance was coupled with an early intensification of ERK signaling, a molecular signature that correlated to 100% phenotypic penetrance in normotensive Alk5iko males. In conclusion, aortic aneurysm induced by Alk5iko exhibits dimorphic incidence between genders with females less susceptible to aortic disease. This sexual dimorphism is partially the result from the protective effects of female hormones. Hypertension, a known risk factor for aortic aneurysm, is able to break the female sex protective effects through mechanisms associated with enhanced ERK activity.
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Affiliation(s)
- Bradley M Schmit
- Division of Vascular Surgery and Endovascular Therapy, University of Florida College of Medicine, Gainesville, Florida; and
| | - Pu Yang
- Division of Vascular Surgery and Endovascular Therapy, University of Florida College of Medicine, Gainesville, Florida; and
| | - Chunhua Fu
- Division of Vascular Surgery and Endovascular Therapy, University of Florida College of Medicine, Gainesville, Florida; and
| | - Kenneth DeSart
- Division of Vascular Surgery and Endovascular Therapy, University of Florida College of Medicine, Gainesville, Florida; and
| | - Scott A Berceli
- Division of Vascular Surgery and Endovascular Therapy, University of Florida College of Medicine, Gainesville, Florida; and The Malcom Randall VA Medical Center, Gainesville, Florida
| | - Zhihua Jiang
- Division of Vascular Surgery and Endovascular Therapy, University of Florida College of Medicine, Gainesville, Florida; and
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21
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Makrygiannis G, Courtois A, Drion P, Defraigne JO, Kuivaniemi H, Sakalihasan N. Sex Differences in Abdominal Aortic Aneurysm: The Role of Sex Hormones. Ann Vasc Surg 2014; 28:1946-58. [DOI: 10.1016/j.avsg.2014.07.008] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2014] [Revised: 06/21/2014] [Accepted: 07/27/2014] [Indexed: 01/16/2023]
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22
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Siu KL, Miao XN, Cai H. Recoupling of eNOS with folic acid prevents abdominal aortic aneurysm formation in angiotensin II-infused apolipoprotein E null mice. PLoS One 2014; 9:e88899. [PMID: 24558445 PMCID: PMC3928303 DOI: 10.1371/journal.pone.0088899] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2013] [Accepted: 01/13/2014] [Indexed: 01/31/2023] Open
Abstract
We have previously shown that eNOS uncoupling mediates abdominal aortic aneurysm (AAA) formation in hph-1 mice. In the present study we examined whether recoupling of eNOS prevents AAA formation in a well-established model of Angiotensin II-infused apolipoprotein E (apoE) null mice by targeting some common pathologies of AAA. Infusion of Ang II resulted in a 92% incidence rate of AAA in the apoE null animals. In a separate group, animals were treated orally with folic acid (FA), which is known to recouple eNOS through augmentation of dihydrofolate reductase (DHFR) function. This resulted in a reduction of AAA rate to 19.5%. Imaging with ultrasound showed that FA markedly inhibited expansion of abdominal aorta. FA also abolished elastin breakdown and macrophage infiltration in the AAA animals. The eNOS uncoupling activity, assessed by L-NAME-sensitive superoxide production, was minimal at baseline but greatly exaggerated with Ang II infusion, which was completely attenuated by FA. This was accompanied by markedly improved tetrahydrobiopterin and nitric oxide bioavailability. Furthermore, the expression and activity of DHFR was decreased in Ang II-infused apoE null mice specifically in the endothelial cells, while FA administration resulted in its recovery. Taken together, these data further establish a significant role of uncoupled eNOS in mediating AAA formation, and a universal efficacy of FA in preventing AAA formation via restoration of DHFR to restore eNOS function.
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MESH Headings
- Administration, Oral
- Angiotensin II/pharmacology
- Animals
- Aorta, Abdominal/diagnostic imaging
- Aorta, Abdominal/drug effects
- Aorta, Abdominal/metabolism
- Aorta, Abdominal/pathology
- Aortic Aneurysm, Abdominal/diagnostic imaging
- Aortic Aneurysm, Abdominal/metabolism
- Aortic Aneurysm, Abdominal/pathology
- Aortic Aneurysm, Abdominal/prevention & control
- Apolipoproteins E/deficiency
- Apolipoproteins E/genetics
- Biopterins/analogs & derivatives
- Biopterins/metabolism
- Folic Acid/administration & dosage
- Folic Acid/pharmacology
- Male
- Mice
- Mice, Knockout
- Nitric Oxide/metabolism
- Nitric Oxide Synthase Type III/metabolism
- Radiography
- Superoxides/metabolism
- Tetrahydrofolate Dehydrogenase/metabolism
- Ultrasonography
- Vascular Remodeling/drug effects
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Affiliation(s)
- Kin Lung Siu
- Divisions of Molecular Medicine and Cardiology, Departments of Anesthesiology and Medicine, Cardiovascular Research Laboratories, David Geffen School of Medicine at University of California Los Angeles, Los Angeles, California, United States of America
| | - Xiao Niu Miao
- Divisions of Molecular Medicine and Cardiology, Departments of Anesthesiology and Medicine, Cardiovascular Research Laboratories, David Geffen School of Medicine at University of California Los Angeles, Los Angeles, California, United States of America
| | - Hua Cai
- Divisions of Molecular Medicine and Cardiology, Departments of Anesthesiology and Medicine, Cardiovascular Research Laboratories, David Geffen School of Medicine at University of California Los Angeles, Los Angeles, California, United States of America
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23
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Assar AN. Pharmacological therapy for patients with abdominal aortic aneurysm. Expert Rev Cardiovasc Ther 2014; 7:999-1009. [DOI: 10.1586/erc.09.56] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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24
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Siddiqi HK, Eagle KA. Acute aortic dissection in women: challenges and opportunities. Expert Rev Cardiovasc Ther 2014; 11:1527-39. [DOI: 10.1586/14779072.2013.845085] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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25
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Lu G, Su G, Zhao Y, Johnston WF, Sherman NE, Rissman EF, Lau C, Ailawadi G, Upchurch GR. Dietary phytoestrogens inhibit experimental aneurysm formation in male mice. J Surg Res 2013; 188:326-38. [PMID: 24388399 DOI: 10.1016/j.jss.2013.11.1108] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2013] [Revised: 11/11/2013] [Accepted: 11/21/2013] [Indexed: 11/16/2022]
Abstract
BACKGROUND The purpose of these experiments was to test the hypothesis that dietary phytoestrogens would diminish experimental aortic aneurysm formation. MATERIALS AND METHODS Six-wk-old C57BL/6 mice were divided into groups, fed either a diet with minimal phytoestrogen content or a regular commercial rodent diet with high phytoestrogen content for 2 wk. At the age of 8 wk, aortic aneurysms were induced by infusing the isolated infrarenal abdominal aorta with 0.4% elastase for 5 min. Mice were recovered and the diameter of the infused aorta was measured at postoperative days 3, 7, and 14. Abdominal aorta samples were collected for histology, cytokine array, and gelatin zymography after aortic diameter measurement. Blood samples were also collected to determine serum phytoestrogens and estradiol levels. Multiple-group comparisons were done using an analysis of variance with post hoc Tukey tests. RESULTS Compared with mice on a minimal phytoestrogen diet, mice on a regular rodent diet had higher levels of serum phytoestrogens (male, 1138 ± 846 ng/dL; female, 310 ± 295 ng/dL). These serum phytoestrogen levels were also much higher than their own endogenous estradiol levels (109-fold higher for males and 35.5-fold higher for females). Although aortic diameters of female mice were unaffected by the phytoestrogen concentration in the diets, male mice on the regular rodent diet (M+ group) developed smaller aortic aneurysms than male mice on the minimal phytoestrogen diet (M- group) on postoperative day 14 (M+ 54.8 ± 8.8% versus M- 109.3 ± 37.6%; P < 0.001). During aneurysm development (postoperative days 3 and 7), there were fewer neutrophils, macrophages, and lymphocytes in the aorta from the M+ group than from the M- group. Concentrations of multiple proinflammatory cytokines (matrix metalloproteinases [MMPs]; interleukin 1β [IL-1β]; IL-6; IL-17; IL-23; monocyte chemoattractant protein-1; regulated on activation, normal T cell expressed and secreted; interferon γ; and tumor necrosis factor α) from aortas of the M+ group were also lower than those from the aortas of the M- group. Zymography also demonstrated that the M+ group had lower levels of aortic MMP-9s than the M- group on postoperative day 14 (P < 0.001 for pro-MMP-9, P < 0.001 for active MMP-9). CONCLUSIONS These results suggest that dietary phytoestrogens inhibit experimental aortic aneurysm formation in male mice via a reduction of the inflammatory response in the aorta wall. The protective effect of dietary phytoestrogens on aneurysm formation warrants further investigation.
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Affiliation(s)
- Guanyi Lu
- Department of Surgery, University of Virginia Health System, Charlottesville, Virginia
| | - Gang Su
- Department of Surgery, University of Virginia Health System, Charlottesville, Virginia
| | - Yunge Zhao
- Department of Surgery, University of Virginia Health System, Charlottesville, Virginia
| | - William F Johnston
- Department of Surgery, University of Virginia Health System, Charlottesville, Virginia
| | - Nicholas E Sherman
- Department of Microbiology, W.M. Keck Biomedical Mass Spectrometry Laboratory, University of Virginia School of Medicine, Charlottesville, Virginia
| | - Emilie F Rissman
- Department of Biochemistry and Molecular Genetics, University of Virginia School of Medicine, Charlottesville, Virginia
| | - Christine Lau
- Department of Surgery, University of Virginia Health System, Charlottesville, Virginia
| | - Gorav Ailawadi
- Department of Surgery, University of Virginia Health System, Charlottesville, Virginia
| | - Gilbert R Upchurch
- Department of Surgery, University of Virginia Health System, Charlottesville, Virginia.
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26
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Wang L, Bai Y, Wang B, Cui H, Wu H, Lv JR, Mei Y, Zhang JS, Liu S, Qi LW, Chen Y. Suppression of experimental abdominal aortic aneurysms in the mice by treatment with Ginkgo biloba extract (EGb 761). JOURNAL OF ETHNOPHARMACOLOGY 2013; 150:308-315. [PMID: 24012526 DOI: 10.1016/j.jep.2013.08.048] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2013] [Revised: 08/23/2013] [Accepted: 08/25/2013] [Indexed: 06/02/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Ginkgo biloba extract (EGb 761) is widely used to treat cerebral disorders. Clinical trials have demonstrated therapeutic benefits of EGb 761 in various vascular diseases. Because the potential pathophysiological mechanisms appear similar to those involved in aneurysmal degeneration, we postulated that EGb 761 might affect the development and progression of experimental abdominal aortic aneurysm (AAA). This study was aimed to investigate whether EGb 761 influences the development of experimental AAAs, and to explore the underlying mechanisms. MATERIAL AND METHODS C57/BL6 mice underwent abluminal application of CaCl2 to the abdominal aorta followed by gavages with either 200mg/kg EGb 761 per day or vehicle. Six weeks after AAA induction, aortic tissue was excised for further examinations. RESULTS EGb 761 treatment reduced the aneurysm size compared with vehicle-treated controls. EGb 761 had no effect on hemodynamics or macrophage infiltration in the aortic wall. However, nuclear factor κB protein levels were decreased in the aortas of EGb 761 treated animals. The increased ROS production, SOD and CAT activities, and mRNA expression of p47phox nicotinamide adenine dinucleotide phosphate oxidase were attenuated by EGb 761 treatment. Moreover, administration of EGb 761 preserved the destruction of the wavy morphology of the elastin during AAA formation. Zymographic activity of matrix metalloproteinase (MMP)-9 and MMP-2 was lowered in EGb 761 treated mice. CONCLUSIONS These results suggest that treatment with EGb 761 in mice prevented the development of CaCl2-induced AAA. The possible mechanisms include decreased oxidative damage and inflammation, preservation of aortic wall architecture, and altered MMPs activities.
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Affiliation(s)
- Lian Wang
- Department of Cardiothoracic Surgery, Jinling Hospital, Clinical Medicine School of Nanjing University, Nanjing 210002, China
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27
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Wilson JS, Virag L, Di Achille P, Karsaj I, Humphrey JD. Biochemomechanics of intraluminal thrombus in abdominal aortic aneurysms. J Biomech Eng 2013; 135:021011. [PMID: 23445056 DOI: 10.1115/1.4023437] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Most computational models of abdominal aortic aneurysms address either the hemodynamics within the lesion or the mechanics of the wall. More recently, however, some models have appropriately begun to account for the evolving mechanics of the wall in response to the changing hemodynamic loads. Collectively, this large body of work has provided tremendous insight into this life-threatening condition and has provided important guidance for current research. Nevertheless, there has yet to be a comprehensive model that addresses the mechanobiology, biochemistry, and biomechanics of thrombus-laden abdominal aortic aneurysms. That is, there is a pressing need to include effects of the hemodynamics on both the development of the nearly ubiquitous intraluminal thrombus and the evolving mechanics of the wall, which depends in part on biochemical effects of the adjacent thrombus. Indeed, there is increasing evidence that intraluminal thrombus in abdominal aortic aneurysms is biologically active and should not be treated as homogeneous inert material. In this review paper, we bring together diverse findings from the literature to encourage next generation models that account for the biochemomechanics of growth and remodeling in patient-specific, thrombus-laden abdominal aortic aneurysms.
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Affiliation(s)
- J S Wilson
- Department of Biomedical Engineering, Yale University, New Haven, CT 06520, USA
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28
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Laser A, Ghosh A, Roelofs K, Sadiq O, McEvoy B, DiMusto P, Eliason J, Upchurch GR. Increased estrogen receptor alpha in experimental aortic aneurysms in females compared with males. J Surg Res 2013; 186:467-74. [PMID: 23993200 DOI: 10.1016/j.jss.2013.07.050] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2013] [Revised: 07/24/2013] [Accepted: 07/25/2013] [Indexed: 02/07/2023]
Abstract
BACKGROUND Estrogen receptor alpha (ERα) has been identified in the vessel wall, offering vasoprotective effects when upregulated. Estrogens are known to mediate the inflammatory milieu, and inflammation has long been associated with abdominal aortic aneurysm (AAA) formation. Therefore, it is theorized that increased estrogen receptor in females contributes to their relative resistance to AAAs. The objective of this study was to determine gender differences in ERα levels during experimental AAA formation. METHODS Infrarenal aortas of male and female C57 mice (n = 18 and n = 16, respectively) were infused with 0.4% elastase. Diameters were measured at days 0 and 14. Aortic messenger RNA expression of ERα was determined on day 3 by reverse transcription-polymerase chain reaction, whereas ERα protein levels were measured via Western blot. Immunohistochemistry using rabbit antibody for ERα was performed on day 14 samples and quantified. Zymography was done for matrix metalloproteinases (MMP)2 and 9 activity levels. Samples of human AAAs were collected and Western blot performed. Data were compared for significance using a student t-test. RESULTS Infrarenal aortic diameter increased in elastase-perfused males (ME) by 80% at 14 days after perfusion, whereas females (FE) increased by only 35% (P = 0.0012). FE had ×10 greater ERα messenger RNA expression compared with ME at day 3 (P = 0.003). Similarly, ERα protein levels were 100% higher in FE compared with those in ME on day 14 (P = 0.035). ERα protein levels were 80% higher in female human patients with AAA than those in their male counterparts (P = 0.029). ERα visualized via immunohistochemistry was 1.5 fold higher in FE than ME (P = 0.029). MMP2 and 9 activity levels were decreased in female compared with male aortas. CONCLUSIONS This study demonstrates an increase in aortic wall ERα in females compared with males that correlates inversely with MMP activity and AAA formation. These findings, coupled with observations that exogenous estrogen inhibits AAA formation in males, further suggest that estrogen supplementation may be important to prevent AAA formation and growth.
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Affiliation(s)
- Adriana Laser
- Division of Vascular Surgery, University of Michigan, Ann Arbor, MI
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29
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Parastatidis I, Weiss D, Joseph G, Taylor WR. Overexpression of catalase in vascular smooth muscle cells prevents the formation of abdominal aortic aneurysms. Arterioscler Thromb Vasc Biol 2013; 33:2389-96. [PMID: 23950141 DOI: 10.1161/atvbaha.113.302175] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
OBJECTIVE Elevated levels of oxidative stress have been reported in abdominal aortic aneurysms (AAA), but which reactive oxygen species promotes the development of AAA remains unclear. Here, we investigate the effect of hydrogen peroxide (H2O2)-degrading enzyme catalase on the formation of AAA. APPROACH AND RESULTS AAA were induced with the application of calcium chloride (CaCl2) on mouse infrarenal aortas. The administration of PEG-catalase, but not saline, attenuated the loss of tunica media and protected against AAA formation (0.91 ± 0.1 versus 0.76 ± 0.09 mm). Similarly, in a transgenic mouse model, catalase overexpression in the vascular smooth muscle cells preserved the thickness of tunica media and inhibited aortic dilatation by 50% (0.85 ± 0.14 versus 0.57 ± 0.08 mm). Further studies showed that injury with CaCl2 decreased catalase expression and activity in the aortic wall. Pharmacological administration or genetic overexpression of catalase restored catalase activity and subsequently decreased matrix metalloproteinase activity. In addition, a profound reduction in inflammatory markers and vascular smooth muscle cell apoptosis was evident in aortas of catalase-overexpressing mice. Interestingly, as opposed to infusion of PEG-catalase, chronic overexpression of catalase in vascular smooth muscle cells did not alter the total aortic H2O2 levels. CONCLUSIONS The data suggest that a reduction in aortic wall catalase activity can predispose to AAA formation. Restoration of catalase activity in the vascular wall enhances aortic vascular smooth muscle cell survival and prevents AAA formation primarily through modulation of matrix metalloproteinase activity.
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Affiliation(s)
- Ioannis Parastatidis
- From the Department of Medicine, Cardiology Division, Emory University School of Medicine, Atlanta, GA (I.P., D.W., G.J., W.R.T.); Cardiology Division, Atlanta Veterans Affairs Medical Center, Atlanta, GA (W.R.T.); and Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA (W.R.T.)
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30
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Matamá T, Araújo R, Preto A, Cavaco-Paulo A, Gomes AC. In vitroinduction of melanin synthesis and extrusion by tamoxifen. Int J Cosmet Sci 2013; 35:368-74. [DOI: 10.1111/ics.12052] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2013] [Accepted: 04/06/2013] [Indexed: 01/25/2023]
Affiliation(s)
- T. Matamá
- CBMA (Centre of Molecular and Environmental Biology); Department of Biology; University of Minho; Campus of Gualtar 4710-057 Braga Portugal
- IBB - Institute for Biotechnology and Bioengineering; Centre of Biological Engineering; University of Minho; Campus de Gualtar 4710-057 Braga Portugal
| | - R. Araújo
- CBMA (Centre of Molecular and Environmental Biology); Department of Biology; University of Minho; Campus of Gualtar 4710-057 Braga Portugal
- IBB - Institute for Biotechnology and Bioengineering; Centre of Biological Engineering; University of Minho; Campus de Gualtar 4710-057 Braga Portugal
| | - A. Preto
- CBMA (Centre of Molecular and Environmental Biology); Department of Biology; University of Minho; Campus of Gualtar 4710-057 Braga Portugal
| | - A. Cavaco-Paulo
- IBB - Institute for Biotechnology and Bioengineering; Centre of Biological Engineering; University of Minho; Campus de Gualtar 4710-057 Braga Portugal
| | - A. C. Gomes
- CBMA (Centre of Molecular and Environmental Biology); Department of Biology; University of Minho; Campus of Gualtar 4710-057 Braga Portugal
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Abstract
Multiple medical therapies have been proposed to prevent abdominal aortic aneurysm expansion. Use of these medications, hormones, vitamins, and dietary products is based on their ability to alter the pathophysiology of continued aortic wall growth. In this review, the explanation of how these medications can achieve suppression of abdominal aortic aneurysm is explained in relation to their effect on the various aspects of aortic wall inflammation. Despite the large number of animal and observational studies, there remain very few randomized clinical trials to support use of any of these agents. However, there may be sufficient evidence to suggest that statins, doxycycline, vitamin E, cyclooxygenase-2 inhibitors, angiotensin-converting enzyme inhibitors, and angiotensin II receptor blockers can prove beneficial in some individuals.
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Affiliation(s)
- Russell Samson
- Mote Vascular Foundation, Inc., Florida State University Medical School, Sarasota, FL 34232, USA.
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Ramos-Mozo P, Madrigal-Matute J, Martinez-Pinna R, Blanco-Colio LM, Lopez JA, Camafeita E, Meilhac O, Michel JB, Aparicio C, de Ceniga MV, Egido J, Martín-Ventura JL. Proteomic Analysis of Polymorphonuclear Neutrophils Identifies Catalase as a Novel Biomarker of Abdominal Aortic Aneurysm: Potential Implication of Oxidative Stress in Abdominal Aortic Aneurysm Progression. Arterioscler Thromb Vasc Biol 2011; 31:3011-9. [DOI: 10.1161/atvbaha.111.237537] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Objective—
Polymorphonuclear neutrophils (PMNs) play a main role in abdominal aortic aneurysm (AAA) progression. We have analyzed circulating PMNs isolated from AAA patients and controls by a proteomic approach to identify proteins potentially involved in AAA pathogenesis.
Methods and Results—
PMNs from 8 AAA patients (4 large AAA >5 cm and 4 small AAA 3–5 cm) and 4 controls were analyzed by 2D differential in-gel electrophoresis. Among differentially expressed spots, several proteins involved in redox balance were identified by mass spectrometry (eg, cyclophilin, thioredoxin reductase, catalase). Diminished catalase expression and activity were observed in PMNs from AAA patients compared with controls. In contrast, PMNs from AAA patients displayed higher H
2
O
2
and myeloperoxidase levels than PMNs from controls. Moreover, a significant decrease in catalase mRNA levels was observed in PMNs after phorbol 12-myristate 13-acetate incubation. Catalase plasma levels were also decreased in large (n=47) and small (n=56) AAA patients compared with controls (n=34). We observed catalase expression in AAA thrombus and thrombus-conditioned medium, associated with PMN infiltration. Furthermore, increased H
2
O
2
levels were observed in AAA thrombus-conditioned medium compared with the media layer.
Conclusion—
Diminished catalase levels in circulating PMNs and plasma are observed in AAA patients, supporting an important role of oxidative stress in AAA evolution.
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Affiliation(s)
- Priscila Ramos-Mozo
- From the Vascular Research Laboratory (P.R.-M., J.M.-M., R.M.-P., L.M.B.-C., J.E., J.L.M.-V.) and Vascular Surgery (C.A.), Instituto de Investigaciones Sanitarias, Fundación Jiménez Diaz, Autonoma University, Madrid, Spain; Unidad de Proteomica, Centro Nacional de Investigaciones Cardiovasculares, Madrid, Spain (J.A.L., E.C.); Institut National de la Santé et de la Recherche Médicale, U698, Univ Paris 7, College Hospital Universitary, X-Bichat, Paris, France (O.M., J.-B.M.); Galdakao Hospital,
| | - Julio Madrigal-Matute
- From the Vascular Research Laboratory (P.R.-M., J.M.-M., R.M.-P., L.M.B.-C., J.E., J.L.M.-V.) and Vascular Surgery (C.A.), Instituto de Investigaciones Sanitarias, Fundación Jiménez Diaz, Autonoma University, Madrid, Spain; Unidad de Proteomica, Centro Nacional de Investigaciones Cardiovasculares, Madrid, Spain (J.A.L., E.C.); Institut National de la Santé et de la Recherche Médicale, U698, Univ Paris 7, College Hospital Universitary, X-Bichat, Paris, France (O.M., J.-B.M.); Galdakao Hospital,
| | - Roxana Martinez-Pinna
- From the Vascular Research Laboratory (P.R.-M., J.M.-M., R.M.-P., L.M.B.-C., J.E., J.L.M.-V.) and Vascular Surgery (C.A.), Instituto de Investigaciones Sanitarias, Fundación Jiménez Diaz, Autonoma University, Madrid, Spain; Unidad de Proteomica, Centro Nacional de Investigaciones Cardiovasculares, Madrid, Spain (J.A.L., E.C.); Institut National de la Santé et de la Recherche Médicale, U698, Univ Paris 7, College Hospital Universitary, X-Bichat, Paris, France (O.M., J.-B.M.); Galdakao Hospital,
| | - Luis Miguel Blanco-Colio
- From the Vascular Research Laboratory (P.R.-M., J.M.-M., R.M.-P., L.M.B.-C., J.E., J.L.M.-V.) and Vascular Surgery (C.A.), Instituto de Investigaciones Sanitarias, Fundación Jiménez Diaz, Autonoma University, Madrid, Spain; Unidad de Proteomica, Centro Nacional de Investigaciones Cardiovasculares, Madrid, Spain (J.A.L., E.C.); Institut National de la Santé et de la Recherche Médicale, U698, Univ Paris 7, College Hospital Universitary, X-Bichat, Paris, France (O.M., J.-B.M.); Galdakao Hospital,
| | - Juan Antonio Lopez
- From the Vascular Research Laboratory (P.R.-M., J.M.-M., R.M.-P., L.M.B.-C., J.E., J.L.M.-V.) and Vascular Surgery (C.A.), Instituto de Investigaciones Sanitarias, Fundación Jiménez Diaz, Autonoma University, Madrid, Spain; Unidad de Proteomica, Centro Nacional de Investigaciones Cardiovasculares, Madrid, Spain (J.A.L., E.C.); Institut National de la Santé et de la Recherche Médicale, U698, Univ Paris 7, College Hospital Universitary, X-Bichat, Paris, France (O.M., J.-B.M.); Galdakao Hospital,
| | - Emilio Camafeita
- From the Vascular Research Laboratory (P.R.-M., J.M.-M., R.M.-P., L.M.B.-C., J.E., J.L.M.-V.) and Vascular Surgery (C.A.), Instituto de Investigaciones Sanitarias, Fundación Jiménez Diaz, Autonoma University, Madrid, Spain; Unidad de Proteomica, Centro Nacional de Investigaciones Cardiovasculares, Madrid, Spain (J.A.L., E.C.); Institut National de la Santé et de la Recherche Médicale, U698, Univ Paris 7, College Hospital Universitary, X-Bichat, Paris, France (O.M., J.-B.M.); Galdakao Hospital,
| | - Olivier Meilhac
- From the Vascular Research Laboratory (P.R.-M., J.M.-M., R.M.-P., L.M.B.-C., J.E., J.L.M.-V.) and Vascular Surgery (C.A.), Instituto de Investigaciones Sanitarias, Fundación Jiménez Diaz, Autonoma University, Madrid, Spain; Unidad de Proteomica, Centro Nacional de Investigaciones Cardiovasculares, Madrid, Spain (J.A.L., E.C.); Institut National de la Santé et de la Recherche Médicale, U698, Univ Paris 7, College Hospital Universitary, X-Bichat, Paris, France (O.M., J.-B.M.); Galdakao Hospital,
| | - Jean-Baptiste Michel
- From the Vascular Research Laboratory (P.R.-M., J.M.-M., R.M.-P., L.M.B.-C., J.E., J.L.M.-V.) and Vascular Surgery (C.A.), Instituto de Investigaciones Sanitarias, Fundación Jiménez Diaz, Autonoma University, Madrid, Spain; Unidad de Proteomica, Centro Nacional de Investigaciones Cardiovasculares, Madrid, Spain (J.A.L., E.C.); Institut National de la Santé et de la Recherche Médicale, U698, Univ Paris 7, College Hospital Universitary, X-Bichat, Paris, France (O.M., J.-B.M.); Galdakao Hospital,
| | - Cesar Aparicio
- From the Vascular Research Laboratory (P.R.-M., J.M.-M., R.M.-P., L.M.B.-C., J.E., J.L.M.-V.) and Vascular Surgery (C.A.), Instituto de Investigaciones Sanitarias, Fundación Jiménez Diaz, Autonoma University, Madrid, Spain; Unidad de Proteomica, Centro Nacional de Investigaciones Cardiovasculares, Madrid, Spain (J.A.L., E.C.); Institut National de la Santé et de la Recherche Médicale, U698, Univ Paris 7, College Hospital Universitary, X-Bichat, Paris, France (O.M., J.-B.M.); Galdakao Hospital,
| | - Melina Vega de Ceniga
- From the Vascular Research Laboratory (P.R.-M., J.M.-M., R.M.-P., L.M.B.-C., J.E., J.L.M.-V.) and Vascular Surgery (C.A.), Instituto de Investigaciones Sanitarias, Fundación Jiménez Diaz, Autonoma University, Madrid, Spain; Unidad de Proteomica, Centro Nacional de Investigaciones Cardiovasculares, Madrid, Spain (J.A.L., E.C.); Institut National de la Santé et de la Recherche Médicale, U698, Univ Paris 7, College Hospital Universitary, X-Bichat, Paris, France (O.M., J.-B.M.); Galdakao Hospital,
| | - Jesus Egido
- From the Vascular Research Laboratory (P.R.-M., J.M.-M., R.M.-P., L.M.B.-C., J.E., J.L.M.-V.) and Vascular Surgery (C.A.), Instituto de Investigaciones Sanitarias, Fundación Jiménez Diaz, Autonoma University, Madrid, Spain; Unidad de Proteomica, Centro Nacional de Investigaciones Cardiovasculares, Madrid, Spain (J.A.L., E.C.); Institut National de la Santé et de la Recherche Médicale, U698, Univ Paris 7, College Hospital Universitary, X-Bichat, Paris, France (O.M., J.-B.M.); Galdakao Hospital,
| | - José Luis Martín-Ventura
- From the Vascular Research Laboratory (P.R.-M., J.M.-M., R.M.-P., L.M.B.-C., J.E., J.L.M.-V.) and Vascular Surgery (C.A.), Instituto de Investigaciones Sanitarias, Fundación Jiménez Diaz, Autonoma University, Madrid, Spain; Unidad de Proteomica, Centro Nacional de Investigaciones Cardiovasculares, Madrid, Spain (J.A.L., E.C.); Institut National de la Santé et de la Recherche Médicale, U698, Univ Paris 7, College Hospital Universitary, X-Bichat, Paris, France (O.M., J.-B.M.); Galdakao Hospital,
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Development of Angiotensin II-induced Abdominal Aortic Aneurysms Is Independent of Catalase in Mice. J Cardiovasc Pharmacol 2011; 58:633-8. [DOI: 10.1097/fjc.0b013e3182317196] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Villard C, Swedenborg J, Eriksson P, Hultgren R. Reproductive history in women with abdominal aortic aneurysms. J Vasc Surg 2011; 54:341-5, 345.e1-2. [PMID: 21620618 DOI: 10.1016/j.jvs.2010.12.069] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2010] [Revised: 12/10/2010] [Accepted: 12/30/2010] [Indexed: 11/26/2022]
Abstract
BACKGROUND The prevalence of abdominal aortic aneurysms (AAAs) differs considerably between the sexes, illustrated by the male/female ratio 4-6:1. Women are also reported to have a higher risk of rupture, and a poorer outcome compared with men. The primary aim of this study was to investigate if women with AAA have a different reproductive history compared with other women. The secondary aim was to study if women with a larger AAA differ in their reproductive history from women with a smaller AAA. METHOD This case-control study was performed in October 2009 and included 140 consecutively monitored women with AAA and 140 with peripheral arterial disease (PAD) at the Department of Vascular Surgery at Karolinska University Hospital, Stockholm. AAA was defined as AAA diameter >3 cm, and women with AAA were subdivided into groups with AAA diameter ≥5 cm and diameter <5 cm. A validated questionnaire was used to obtain information about participants' reproductive history and general health. The response rate was 70% (n = 196). RESULTS Women with AAA were smokers to a greater extent than women with PAD (previous, 52% vs 46%; current, 46% vs 34%, P = .001). Diabetes mellitus was more prevalent in women with PAD (28%) than in women with AAA (15%, P = .034). Angina pectoris occurred more often in women with AAA (26%) than in women with PAD (11%, P = .026). No significant difference was found between PAD and AAA women regarding statin use, treatment for hypertension, prior myocardial infarction, and body mass index (BMI). The 54 women with AAA ≥5 cm and the 44 women with AAA <5 cm were similar in age (76 vs 76 years, P = .908) and BMI (25.7 vs 24.0 kg/m(2), P = .66). No difference was noted in the occurrence of other risk factors between women with AAA ≥5 cm and women with AAA <5 cm. Mean age at menopause was lower in women with AAA ≥5 cm than in women with AAA <5 cm and in women with PAD (47.7 vs 49.9 vs 49.7 years, P = .011). Apart from menopausal age, the groups had a similar reproductive history, including hormone replacement therapy, parity, use of contraceptives, prior gynecological surgery, and breast cancer. CONCLUSION These findings suggest that women with larger AAA reach menopausal age earlier, and this could influence an earlier onset of aneurysmatic disease or an increase in aneurysm growth. The true role of endogenous estrogen in aneurysm development and expansion is yet to be investigated.
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Affiliation(s)
- Christina Villard
- Department of Molecular Medicine and Surgery, Karolinska Institute, Stockholm, Sweden.
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Maiellaro-Rafferty K, Weiss D, Joseph G, Wan W, Gleason RL, Taylor WR. Catalase overexpression in aortic smooth muscle prevents pathological mechanical changes underlying abdominal aortic aneurysm formation. Am J Physiol Heart Circ Physiol 2011; 301:H355-62. [PMID: 21551275 DOI: 10.1152/ajpheart.00040.2011] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The causality of the associations between cellular and mechanical mechanisms of abdominal aortic aneurysm (AAA) formation has not been completely defined. Because reactive oxygen species are established mediators of AAA growth and remodeling, our objective was to investigate oxidative stress-induced alterations in aortic biomechanics and microstructure during subclinical AAA development. We investigated the mechanisms of AAA in an angiotensin II (ANG II) infusion model of AAA in apolipoprotein E-deficient (apoE(-/-)) mice that overexpress catalase in vascular smooth muscle cells (apoE(-/-)xTg(SMC-Cat)). At baseline, aortas from apoE(-/-)xTg(SMC-Cat) exhibited increased stiffness and the microstructure was characterized by 50% more collagen content and less elastin fragmentation. ANG II treatment for 7 days in apoE(-/-) mice altered the transmural distribution of suprarenal aortic circumferential strain (quantified by opening angle, which increased from 130 ± 1° at baseline to 198 ± 8° after 7 days of ANG II treatment) without obvious changes in the aortic microstructure. No differences in aortic mechanical behavior or suprarenal opening angle were observed in apoE(-/-)xTg(SMC-Cat) after 7 days of ANG II treatment. These data suggest that at the earliest stages of AAA development H(2)O(2) is functionally important and is involved in the control of local variations in remodeling across the vessel wall. They further suggest that reduced elastin integrity at baseline may predispose the abdominal aorta to aneurysmal mechanical remodeling.
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Affiliation(s)
- Kathryn Maiellaro-Rafferty
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University Atlanta, GA, USA
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Martinez-Pinna R, Ramos-Mozo P, Madrigal-Matute J, Blanco-Colio LM, Lopez JA, Calvo E, Camafeita E, Lindholt JS, Meilhac O, Delbosc S, Michel JB, de Ceniga MV, Egido J, Martin-Ventura JL. Identification of Peroxiredoxin-1 as a Novel Biomarker of Abdominal Aortic Aneurysm. Arterioscler Thromb Vasc Biol 2011; 31:935-43. [DOI: 10.1161/atvbaha.110.214429] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Roxana Martinez-Pinna
- From the Vascular Research Laboratory, Instituto de Investigación Sanitaria-Fundación Jiménez Diaz-Autonoma University, Madrid, Spain (R.M.-P., P.R.-M., J.M.-M., L.M.B.-C., J.E., J.L.M.-V.); Unidad de Proteómica, Centro Nacional de Investigaciones Cardiovasculares, Madrid, Spain (J.A.L., E. Calvo, E. Camafeita); Vascular Research Unit, Viborg Hospital, Viborg, Denmark (J.S.L.); Institut National de la Santé et de la Recherche Médicale U698, Paris, France (O.M., S.D., J.-B.M.); Université Denis
| | - Priscila Ramos-Mozo
- From the Vascular Research Laboratory, Instituto de Investigación Sanitaria-Fundación Jiménez Diaz-Autonoma University, Madrid, Spain (R.M.-P., P.R.-M., J.M.-M., L.M.B.-C., J.E., J.L.M.-V.); Unidad de Proteómica, Centro Nacional de Investigaciones Cardiovasculares, Madrid, Spain (J.A.L., E. Calvo, E. Camafeita); Vascular Research Unit, Viborg Hospital, Viborg, Denmark (J.S.L.); Institut National de la Santé et de la Recherche Médicale U698, Paris, France (O.M., S.D., J.-B.M.); Université Denis
| | - Julio Madrigal-Matute
- From the Vascular Research Laboratory, Instituto de Investigación Sanitaria-Fundación Jiménez Diaz-Autonoma University, Madrid, Spain (R.M.-P., P.R.-M., J.M.-M., L.M.B.-C., J.E., J.L.M.-V.); Unidad de Proteómica, Centro Nacional de Investigaciones Cardiovasculares, Madrid, Spain (J.A.L., E. Calvo, E. Camafeita); Vascular Research Unit, Viborg Hospital, Viborg, Denmark (J.S.L.); Institut National de la Santé et de la Recherche Médicale U698, Paris, France (O.M., S.D., J.-B.M.); Université Denis
| | - Luis M. Blanco-Colio
- From the Vascular Research Laboratory, Instituto de Investigación Sanitaria-Fundación Jiménez Diaz-Autonoma University, Madrid, Spain (R.M.-P., P.R.-M., J.M.-M., L.M.B.-C., J.E., J.L.M.-V.); Unidad de Proteómica, Centro Nacional de Investigaciones Cardiovasculares, Madrid, Spain (J.A.L., E. Calvo, E. Camafeita); Vascular Research Unit, Viborg Hospital, Viborg, Denmark (J.S.L.); Institut National de la Santé et de la Recherche Médicale U698, Paris, France (O.M., S.D., J.-B.M.); Université Denis
| | - Juan A. Lopez
- From the Vascular Research Laboratory, Instituto de Investigación Sanitaria-Fundación Jiménez Diaz-Autonoma University, Madrid, Spain (R.M.-P., P.R.-M., J.M.-M., L.M.B.-C., J.E., J.L.M.-V.); Unidad de Proteómica, Centro Nacional de Investigaciones Cardiovasculares, Madrid, Spain (J.A.L., E. Calvo, E. Camafeita); Vascular Research Unit, Viborg Hospital, Viborg, Denmark (J.S.L.); Institut National de la Santé et de la Recherche Médicale U698, Paris, France (O.M., S.D., J.-B.M.); Université Denis
| | - Enrique Calvo
- From the Vascular Research Laboratory, Instituto de Investigación Sanitaria-Fundación Jiménez Diaz-Autonoma University, Madrid, Spain (R.M.-P., P.R.-M., J.M.-M., L.M.B.-C., J.E., J.L.M.-V.); Unidad de Proteómica, Centro Nacional de Investigaciones Cardiovasculares, Madrid, Spain (J.A.L., E. Calvo, E. Camafeita); Vascular Research Unit, Viborg Hospital, Viborg, Denmark (J.S.L.); Institut National de la Santé et de la Recherche Médicale U698, Paris, France (O.M., S.D., J.-B.M.); Université Denis
| | - Emilio Camafeita
- From the Vascular Research Laboratory, Instituto de Investigación Sanitaria-Fundación Jiménez Diaz-Autonoma University, Madrid, Spain (R.M.-P., P.R.-M., J.M.-M., L.M.B.-C., J.E., J.L.M.-V.); Unidad de Proteómica, Centro Nacional de Investigaciones Cardiovasculares, Madrid, Spain (J.A.L., E. Calvo, E. Camafeita); Vascular Research Unit, Viborg Hospital, Viborg, Denmark (J.S.L.); Institut National de la Santé et de la Recherche Médicale U698, Paris, France (O.M., S.D., J.-B.M.); Université Denis
| | - Jes S. Lindholt
- From the Vascular Research Laboratory, Instituto de Investigación Sanitaria-Fundación Jiménez Diaz-Autonoma University, Madrid, Spain (R.M.-P., P.R.-M., J.M.-M., L.M.B.-C., J.E., J.L.M.-V.); Unidad de Proteómica, Centro Nacional de Investigaciones Cardiovasculares, Madrid, Spain (J.A.L., E. Calvo, E. Camafeita); Vascular Research Unit, Viborg Hospital, Viborg, Denmark (J.S.L.); Institut National de la Santé et de la Recherche Médicale U698, Paris, France (O.M., S.D., J.-B.M.); Université Denis
| | - Olivier Meilhac
- From the Vascular Research Laboratory, Instituto de Investigación Sanitaria-Fundación Jiménez Diaz-Autonoma University, Madrid, Spain (R.M.-P., P.R.-M., J.M.-M., L.M.B.-C., J.E., J.L.M.-V.); Unidad de Proteómica, Centro Nacional de Investigaciones Cardiovasculares, Madrid, Spain (J.A.L., E. Calvo, E. Camafeita); Vascular Research Unit, Viborg Hospital, Viborg, Denmark (J.S.L.); Institut National de la Santé et de la Recherche Médicale U698, Paris, France (O.M., S.D., J.-B.M.); Université Denis
| | - Sandrine Delbosc
- From the Vascular Research Laboratory, Instituto de Investigación Sanitaria-Fundación Jiménez Diaz-Autonoma University, Madrid, Spain (R.M.-P., P.R.-M., J.M.-M., L.M.B.-C., J.E., J.L.M.-V.); Unidad de Proteómica, Centro Nacional de Investigaciones Cardiovasculares, Madrid, Spain (J.A.L., E. Calvo, E. Camafeita); Vascular Research Unit, Viborg Hospital, Viborg, Denmark (J.S.L.); Institut National de la Santé et de la Recherche Médicale U698, Paris, France (O.M., S.D., J.-B.M.); Université Denis
| | - Jean-Baptiste Michel
- From the Vascular Research Laboratory, Instituto de Investigación Sanitaria-Fundación Jiménez Diaz-Autonoma University, Madrid, Spain (R.M.-P., P.R.-M., J.M.-M., L.M.B.-C., J.E., J.L.M.-V.); Unidad de Proteómica, Centro Nacional de Investigaciones Cardiovasculares, Madrid, Spain (J.A.L., E. Calvo, E. Camafeita); Vascular Research Unit, Viborg Hospital, Viborg, Denmark (J.S.L.); Institut National de la Santé et de la Recherche Médicale U698, Paris, France (O.M., S.D., J.-B.M.); Université Denis
| | - Melina Vega de Ceniga
- From the Vascular Research Laboratory, Instituto de Investigación Sanitaria-Fundación Jiménez Diaz-Autonoma University, Madrid, Spain (R.M.-P., P.R.-M., J.M.-M., L.M.B.-C., J.E., J.L.M.-V.); Unidad de Proteómica, Centro Nacional de Investigaciones Cardiovasculares, Madrid, Spain (J.A.L., E. Calvo, E. Camafeita); Vascular Research Unit, Viborg Hospital, Viborg, Denmark (J.S.L.); Institut National de la Santé et de la Recherche Médicale U698, Paris, France (O.M., S.D., J.-B.M.); Université Denis
| | - Jesus Egido
- From the Vascular Research Laboratory, Instituto de Investigación Sanitaria-Fundación Jiménez Diaz-Autonoma University, Madrid, Spain (R.M.-P., P.R.-M., J.M.-M., L.M.B.-C., J.E., J.L.M.-V.); Unidad de Proteómica, Centro Nacional de Investigaciones Cardiovasculares, Madrid, Spain (J.A.L., E. Calvo, E. Camafeita); Vascular Research Unit, Viborg Hospital, Viborg, Denmark (J.S.L.); Institut National de la Santé et de la Recherche Médicale U698, Paris, France (O.M., S.D., J.-B.M.); Université Denis
| | - Jose L. Martin-Ventura
- From the Vascular Research Laboratory, Instituto de Investigación Sanitaria-Fundación Jiménez Diaz-Autonoma University, Madrid, Spain (R.M.-P., P.R.-M., J.M.-M., L.M.B.-C., J.E., J.L.M.-V.); Unidad de Proteómica, Centro Nacional de Investigaciones Cardiovasculares, Madrid, Spain (J.A.L., E. Calvo, E. Camafeita); Vascular Research Unit, Viborg Hospital, Viborg, Denmark (J.S.L.); Institut National de la Santé et de la Recherche Médicale U698, Paris, France (O.M., S.D., J.-B.M.); Université Denis
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Michel JB, Martin-Ventura JL, Egido J, Sakalihasan N, Treska V, Lindholt J, Allaire E, Thorsteinsdottir U, Cockerill G, Swedenborg J. Novel aspects of the pathogenesis of aneurysms of the abdominal aorta in humans. Cardiovasc Res 2011; 90:18-27. [PMID: 21037321 PMCID: PMC3058728 DOI: 10.1093/cvr/cvq337] [Citation(s) in RCA: 249] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/26/2010] [Revised: 10/04/2010] [Accepted: 10/20/2010] [Indexed: 01/22/2023] Open
Abstract
Aneurysm of the abdominal aorta (AAA) is a particular, specifically localized form of atherothrombosis, providing a unique human model of this disease. The pathogenesis of AAA is characterized by a breakdown of the extracellular matrix due to an excessive proteolytic activity, leading to potential arterial wall rupture. The roles of matrix metalloproteinases and plasmin generation in progression of AAA have been demonstrated both in animal models and in clinical studies. In the present review, we highlight recent studies addressing the role of the haemoglobin-rich, intraluminal thrombus and the adventitial response in the development of human AAA. The intraluminal thrombus exerts its pathogenic effect through platelet activation, fibrin formation, binding of plasminogen and its activators, and trapping of erythrocytes and neutrophils, leading to oxidative and proteolytic injury of the arterial wall. These events occur mainly at the intraluminal thrombus-circulating blood interface, and pathological mediators are conveyed outwards, where they promote matrix degradation of the arterial wall. In response, neo-angiogenesis, phagocytosis by mononuclear cells, and a shift from innate to adaptive immunity in the adventitia are observed. Abdominal aortic aneurysm thus represents an accessible spatiotemporal model of human atherothrombotic progression towards clinical events, the study of which should allow further understanding of its pathogenesis and the translation of pathogenic biological activities into diagnostic and therapeutic applications.
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Affiliation(s)
- Jean-Baptiste Michel
- Inserm Unit 698, Cardiovascular Remodelling, Denis Diderot University, Hôpital X. Bichat, Paris, France.
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Role of Porphyromonas gingivalis phosphoserine phosphatase enzyme SerB in inflammation, immune response, and induction of alveolar bone resorption in rats. Infect Immun 2010; 78:4560-9. [PMID: 20805334 DOI: 10.1128/iai.00703-10] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Porphyromonas gingivalis secretes a serine phosphatase enzyme, SerB, upon contact with gingival epithelial cells in vitro. The SerB protein plays a critical role in internalization and survival of the organism in epithelial cells. SerB is also responsible for the inhibition of interleukin-8 (IL-8) secretion from gingival epithelial cells infected with P. gingivalis. This study examined the ability of a P. gingivalis SerB mutant to colonize the oral cavity and induce gingival inflammation, immune responses, and alveolar bone resorption in a rat model of periodontal disease. Both P. gingivalis ATCC 33277 and an isogenic ΔSerB mutant colonized the oral cavities of rats during the 12-week experimental period. Both of the strains induced significant (P < 0.05) systemic levels of immunoglobulin G (IgG) and isotypes IgG1, IgG2a, and IgG2b, indicating the involvement of both T helper type 1 (Th1) and Th2 responses to infection. Both strains induced significantly (P < 0.05) higher levels of alveolar bone resorption in infected rats than in sham-infected control rats. However, horizontal and interproximal alveolar bone resorption induced by the SerB mutant was significantly (P < 0.05) lower than that induced by the parental strain. Rats infected with the ΔSerB mutant exhibited significantly higher levels of apical migration of the junctional epithelium (P < 0.01) and polymorphonuclear neutrophil (PMN) recruitment (P < 0.001) into the gingival tissues than rats infected with the wild type. In conclusion, in a rat model of periodontal disease, the SerB phosphatase of P. gingivalis is required for maximal alveolar bone resorption, and in the absence of SerB, more PMNs are recruited into the gingival tissues.
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Dua MM, Dalman RL. Identifying abdominal aortic aneurysm risk factors in postmenopausal women. WOMENS HEALTH 2008; 5:33-7. [PMID: 19102638 DOI: 10.2217/17455057.5.1.33] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Evaluation of: Lederle FA, Larson JC, Margolis KL et al.: Abdominal aortic aneurysm events in the Women's Health Initiative: cohort study. Br. Med. J. 337, A1724 (2008). A linked cohort study of 161,808 postmenopausal women aged 50-79 years enrolled in the Women's Health Initiative was conducted during which participants were followed for the incidence of abdominal aortic aneurysm repair or rupture. This study evaluated the association between potential risk factors and subsequent abdominal aortic aneurysm events in women. A total of 467 women reported a diagnosis of abdominal aortic aneurysm before entering the study or during participation, with 184 aneurysm-related events identified. Abdominal aortic aneurysm events were strongly associated with age and smoking and negatively associated with diabetes and baseline use of postmenopausal hormone supplementation. Previous studies investigating abdominal aortic aneurysm have focused primarily on men, with little reliable information available on women. This study contributes a large female cohort to provide better insight into gender-specific abdominal aortic aneurysm risks and disease associations.
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Affiliation(s)
- Monica M Dua
- Stanford University School of Medicine, Department of Surgery, Division of Vascular Surgery, 300 Pasteur Drive, Suite H3600, Stanford, CA 94305, USA.
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van Bommel EFH, van der Veer SJ, Hendriksz TR, Bleumink GS. Persistent chronic peri-aortitis (‘inflammatory aneurysm’) after abdominal aortic aneurysm repair: systematic review of the literature. Vasc Med 2008; 13:293-303. [DOI: 10.1177/1358863x08091147] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract Data on the outcome of aneurysmal chronic peri-aortitis (‘inflammatory aneurysm’) after open surgical aneurysm repair are few and contradictory. To what extent this inflammatory process is reversed after endovascular aneurysm repair (EVAR) is even more unclear. The objective of this review was to study the outcome of peri-aortic fibrosis (PAF) and ureteral obstruction in patients with aneurysmal chronic peri-aortitis treated with open surgery or EVAR. Medical literature was searched for pertinent articles on the outcome of PAF and ureteral obstruction after open surgery or EVAR from 1970 through October 2007. Studies were included if specific follow-up data were available on outcomes of interest. A total of 19 studies were included comprising 478 patients (open surgical, n = 426; EVAR, n = 52). Age, sex and percentage of patients with ureteral obstruction (31% vs 37%) did not differ between groups. Regression of PAF occurred more frequently after open surgery compared to EVAR (86% vs 60%; p < 0.0001). Complete regression of PAF was more frequent after open surgery compared to EVAR (52% vs 14%; p < 0.0001). After excluding patients in whom concurrent ureterolysis was performed, the frequency of persistent ureteral obstruction remained lower in patients treated surgically compared to patients treated with EVAR, albeit not statistically significant (32% vs 56%; p = 0.09). In conclusion, although open surgery is superior to EVAR in achieving regression of chronic peri-aortitis, the frequency of persistent PAF and/or ureteral obstruction is not negligible. Additional medical and/or urological treatment should be considered in selected cases of aneurysmal chronic peri-aortitis.
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Affiliation(s)
- EFH van Bommel
- Department of Internal Medicine, Albert Schweitzer Hospital, Dordrecht, The Netherlands
| | - SJ van der Veer
- Department of Radiology, Albert Schweitzer Hospital, Dordrecht, The Netherlands
| | - TR Hendriksz
- Department of Radiology, Albert Schweitzer Hospital, Dordrecht, The Netherlands
| | - GS Bleumink
- Department of Internal Medicine, Albert Schweitzer Hospital, Dordrecht, The Netherlands
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Inhibitory effects of a biodegradable gelatin hydrogel sponge sheet on the progression of experimental abdominal aortic aneurysms. Ann Vasc Surg 2008; 23:224-30. [PMID: 18783914 DOI: 10.1016/j.avsg.2008.06.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2008] [Revised: 04/21/2008] [Accepted: 06/18/2008] [Indexed: 11/20/2022]
Abstract
We investigated the effects of a biodegradable gelatin hydrogel sponge sheet (GHSS) or GHSS incorporating basic fibroblast growth factor (GHSS + bFGF), which could prolong the effects of bFGF, on the progression of experimental abdominal aortic aneurysms (AAAs). Experimental AAAs were induced in male Sprague-Dawley rats by intra-aortic elastase infusion. The rats were divided according to the following treatments: (1) untreated, (2) GHSS alone, (3) GHSS incorporating 100 ng, 1 microg, and 10 microg of bFGF. GHSSs were placed over the elastase-infused aortas. After 14 days, the GHSS alone group and the three groups with GHSS + bFGF demonstrated significantly smaller aortic diameters than the untreated group, and these groups significantly attenuated a reduction of the elastic fibers and smooth muscle cells in the pathological findings. However, no additional therapeutic effect was noted between the GHSS alone and GHSS + bFGF groups. Immunohistochemical analysis revealed an increase of positive cells for endogenous bFGF in the media and adventitia of both the GHSS alone and GHSS + bFGF groups in comparison to the untreated group. In conclusion, GHSS itself possessed significant therapeutic effects on AAA progression by inducing the production of endogenous bFGF, leading to the preservation of elastic fibers and smooth muscle cells.
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Affiliation(s)
- P E Norman
- School of Surgery and Pathology, University of Western Australia, Fremantle, Western Australia.
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Sinha I, Pearce CG, Cho BS, Hannawa KK, Roelofs KJ, Stanley JC, Henke PK, Upchurch GR. Differential regulation of the superoxide dismutase family in experimental aortic aneurysms and rat aortic explants. J Surg Res 2007; 138:156-62. [PMID: 17196988 DOI: 10.1016/j.jss.2006.07.011] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2006] [Revised: 07/10/2006] [Accepted: 07/11/2006] [Indexed: 01/05/2023]
Abstract
OBJECTIVE Oxidative stress has been implicated in abdominal aortic aneurysm pathogenesis. This study sought to characterize the relevance of superoxide dismutases (SOD), a family of reactive oxygen catalyzing metalloenzymes, including manganese SOD (MnSOD), copper-zinc SOD (CuZnSOD), and extracellular SOD (EcSOD), in a rodent aortic aneurysm model. METHODS Male rat infrarenal abdominal aortas were perfused with either saline (control) or porcine pancreatic elastase (6 U/mL). Aortic diameter was measured and aortas harvested on post-operation days 1, 2, and 7 (N=5-6 per treatment group per day). MnSOD, CuZnSOD, EcSOD, catalase, MMP-2, MMP-9, and beta-actin expression in aortic tissue was determined by quantitative real-time PCR. MnSOD protein levels were measured using western immunoblotting and immunohistochemistry. In subsequent experiments, aimed at understanding the mechanism by which SOD is involved in AAA pathogenesis, rat aortic explants (RAEs) were incubated in media for 24 h in the presence of interleukin-1beta (IL-1beta, 2 ng/mL) and TEMPOL (SOD mimetic), catalase, or a combined SOD and catalase mimetic. Media MMP-2 and MMP-9 activity was determined by zymography. Data were analyzed by Student's t-tests and ANOVA. RESULTS Elastase-perfused aortic diameters were significantly increased compared to control aortas by post-perfusion day 7 (P=0.016). MnSOD mRNA levels in elastase perfused aortas were 6.0 (P=0.05) and 7.5 times (P<0.01) greater than control aortas at post-perfusion days 1 and 2, respectively. EcSOD, CuZnSOD, catalase, and MMP-2 mRNA expression did not statistically vary between the two groups. MMP-9 expression was 3.5-fold higher in the elastase group on post-perfusion day 2 (P=0.04). Western immunoblotting confirmed MnSOD protein was up-regulated on day 4 in the elastase-perfused group compared to controls (P=0.02). Immunohistrochemistry demonstrated increased MnSOD staining in the elastase group on day 4. In RAE experiments, TEMPOL increased both MMP-9 and MMP-2 activity 2 (P=0.09) and 3-fold (P=0.05), respectively, whereas catalase and the combined SOD/catalase mimetic failed to increase MMP-2 or MMP-9 activity. CONCLUSION Experimental abdominal aortic aneurysm formation is associated with early increases in MnSOD expression and an increase in MMP-9 activity. Strategies aimed at inhibiting oxidative stress during AAA formation should focus on MnSOD.
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Affiliation(s)
- Indranil Sinha
- Jobst Vascular Research Laboratories, Section of Vascular Surgery, Department of Surgery, University of Michigan, Ann Arbor, Michigan, USA
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Frink M, Thobe BM, Hsieh YC, Choudhry MA, Schwacha MG, Bland KI, Chaudry IH. 17beta-Estradiol inhibits keratinocyte-derived chemokine production following trauma-hemorrhage. Am J Physiol Lung Cell Mol Physiol 2006; 292:L585-91. [PMID: 17085520 DOI: 10.1152/ajplung.00364.2006] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Neutrophil infiltration is a key step in the development of organ dysfunction following trauma-hemorrhage (T-H). Although we have previously shown that 17beta-estradiol (E2) prevents neutrophil infiltration and organ damage following T-H, the mechanism by which E2 inhibits neutrophil transmigration remains unknown. We hypothesized that E2 prevents neutrophil infiltration via modulation of keratinocyte-derived chemokine (KC), a major attractant for neutrophils. To examine this, male C3H/HeN mice were subjected to T-H or sham operation and thereafter resuscitated with Ringer lactate and E2 (1 mg/kg body wt) or vehicle. Animals were killed 2 h after resuscitation, and Kupffer cells were isolated. Plasma levels and Kupffer cell production capacities of KC, TNF-alpha, and IL-6 were determined by BD Cytometric Bead Arrays; lung mRNA expression of KC was measured with real-time PCR; myeloperoxidase activity assays were performed to determine neutrophil infiltration, and organ damage was assessed by edema formation. Treatment with E2 decreased systemic levels and restored Kupffer cell production of KC, TNF-alpha, and IL-6, as well as KC gene expression and protein in the lung. This was accompanied with a decrease in neutrophil infiltration and edema formation in the lung. These results suggest that E2 prevents lung neutrophil infiltration and organ damage in part by decreasing KC during posttraumatic immune response.
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Affiliation(s)
- Michael Frink
- Center for Surgical Research and Department of Surgery, University of Alabama at Birmingham, Birmingham, AL 35294-0019, USA
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Sinha I, Cho BS, Roelofs KJ, Stanley JC, Henke PK, Upchurch GR. Female gender attenuates cytokine and chemokine expression and leukocyte recruitment in experimental rodent abdominal aortic aneurysms. Ann N Y Acad Sci 2006; 1085:367-79. [PMID: 17182958 DOI: 10.1196/annals.1383.027] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Female gender appears to be protective in the development of abdominal aortic aneurysms (AAAs). This study sought to identify gender differences in cytokine and chemokine expression in an experimental rodent AAA model. Male and female rodent aortas were perfused with either saline (control) or elastase to induce AAA formation. Aortic diameter was determined and aortic tissue was harvested on postperfusion days 4 and 7. Cytokine and chemokine gene expression was examined using focused gene arrays. Immunohistochemistry was used to quantify aortic leukocyte infiltration. Data were analyzed by Student's t-tests and ANOVA. Elastase-perfused female rodents developed significantly smaller aneurysms compared to males by day 7 (93 +/- 10% vs. 201 +/- 25%, P = 0.003). Elastase-perfused female aortas exhibited a fivefold decrease in expression of the BMP family and ligands of the TNF superfamily compared to males. In addition, the expression of members of the TGF beta and VEGF families were three to fourfold lower in female elastase-perfused aortas compared to males. Multiple members of the interleukin, CC chemokine receptor, and CC ligand families were detectable in only the male elastase-perfused aortas. Female elastase-perfused aortas demonstrated a corollary twofold lower neutrophil count (females: 17.5 +/- 1.1 PMN/HPF; males: 41 +/- 5.2 neutrophils/HPF, P = 0.01) and a 1.5-fold lower macrophage count (females: 12 +/- 1.1 macrophages/HPF; males: 17.5 +/- 1.1 macrophages/HPF, P = 0.003) compared to male elastase-perfused aortas. This study documents decreased expression of multiple cytokines and chemokines and diminished leukocyte trafficking in female rat aortas compared to male aortas following elastase perfusion. These genes may contribute to the gender disparity seen in AAA formation.
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Affiliation(s)
- Indranil Sinha
- Department of Surgery, Jobst Vascular Research Laboratories, Section of Vascular Surgery, University of Michigan, Ann Arbor, MI 48109-0329, USA
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Golledge J, Muller J, Daugherty A, Norman P. Abdominal aortic aneurysm: pathogenesis and implications for management. Arterioscler Thromb Vasc Biol 2006; 26:2605-13. [PMID: 16973970 DOI: 10.1161/01.atv.0000245819.32762.cb] [Citation(s) in RCA: 450] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abdominal aortic aneurysm (AAA) affects approximately 5% of elderly men and is responsible for a significant number of deaths in Western Countries. At present surgery by open or endovascular means is the only widely used therapy for this condition. In this review we examine the risk factors, serum, and genetic associations of AAA. Epidemiology studies suggest that smoking cessation and control of cholesterol and blood pressure should reduce the number of patients developing AAA. Natural history studies suggest that smoking cessation should reduce the rate of progression of AAA. Clear level 1 evidence for drug treatments of AAA are presently lacking; however, animal and human in vitro studies suggest that medication targeted at reducing inflammation and proteolysis are most likely to be beneficial, with limited data to support the use of statins, Angiotensin II inhibitors, and macrolides. Work has commenced in understanding which patients, identified by clinical, serum, and genotype, are more at risk of AAA progression and thus should be selected out for aggressive treatment. Well designed large multicenter randomized controlled trials are required to examine the medical treatment of AAA.
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Affiliation(s)
- Jonathan Golledge
- The Vascular Biology Unit, School of Medicine, James Cook University, Townsville, Queensland 4811, Australia.
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Bergoeing MP, Thompson RW, Curci JA. Pharmacological targets in the treatment of abdominal aortic aneurysms. Expert Opin Ther Targets 2006; 10:547-59. [PMID: 16848691 DOI: 10.1517/14728222.10.4.547] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The natural history of an abdominal aortic aneurysm (AAA) is of progressive aortic wall degeneration occurring over the course of many years, ultimately, culminating in loss of structural integrity and fatal aortic rupture. Although surgical exclusion of an aneurysm can effectively prevent aortic rupture in large aneurysms, small aneurysms are generally completely asymptomatic and are very unlikely to rupture. Further, AAA can be easily diagnosed with noninvasive testing; thus, small aneurysms present an excellent opportunity for disease-modifying pharmacological intervention. Research over the past two decades has defined many of the mechanisms which result in aortic matrix degeneration in both human tissue and particularly within animal models. This has resulted in the identification of several potential targets for pharmacological intervention. Drugs directed at inhibition of the inflammatory process and matrix degrading enzymes have been successful in multiple animal models, and early evidence now suggests that disease modification with some of these agents may be successful in slowing AAA growth in humans as well. The future of AAA therapy, however, may belong to agents which can induce aneurysm regression and to delivery methods which specifically target affected arterial tissue.
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Affiliation(s)
- Michel P Bergoeing
- Washington University in Saint Louis, Department of Surgery, Section of Vascular Surgery, 660 S. Euclid Avenue, Campus Box 8109, St. Louis, MO 63110, USA
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Schirmer M, Duftner C, Seiler R, Dejaco C, Fraedrich G. Abdominal aortic aneurysms: an underestimated type of immune-mediated large vessel arteritis? Curr Opin Rheumatol 2006; 18:48-53. [PMID: 16344619 DOI: 10.1097/01.bor.0000198001.35203.36] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
PURPOSE OF REVIEW To review recent studies on the immune-mediated pathogenesis of abdominal aortic aneurysms, opening a wide field for possible new therapeutic approaches. RECENT FINDINGS Immune-mediated processes including involvement of neutrophils, interferon-gamma producing T cells and proinflammatory cytokines play an important role especially in the initiation of abdominal aortic aneurysm disease. C-reactive protein was associated with aneurysm size and is possibly produced by the aneurysmal tissue itself. From the clinical perspective, both inflammatory and noninflammatory abdominal aortic aneurysms are associated with various autoimmune diseases. Preliminary data of F-FDG positron emission tomography imaging of abdominal aortic aneurysms suggest focal uptake of F-FDG within the aneurysm wall in patients with either large, rapidly expanding or symptomatic aneurysms that are prone to rupture. Thus basic research findings and clinical research focusing on the underlying immune-mediated mechanisms of abdominal aortic aneurysms will likely pave the way for new medical therapies in the future. In animal models the effects of rapamycin as an immunosuppressive agent, modulation of estrogen receptors by tamoxifen as well as gene therapy using decoy oligonucleotides binding to the transcription factor ets has already proved helpful in decreasing aneurysm expansion rates. SUMMARY Pathophysiological, immunogenetical and interventional studies support the concept of abdominal aortic aneurysm as an immune-mediated process, which will help to identify more laboratory and imaging signs of development in the future. Further research will now assess the possible benefit of antiinflammatory therapeutic approaches, especially in patients with small abdominal aortic aneurysms.
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Affiliation(s)
- Michael Schirmer
- Department of Internal Medicine, Innsbruck Medical University, Austria, Innsbruck Medical University, Austria.
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Sinha I, Sinha-Hikim AP, Hannawa KK, Henke PK, Eagleton MJ, Stanley JC, Upchurch GR. Mitochondrial-dependent apoptosis in experimental rodent abdominal aortic aneurysms. Surgery 2005; 138:806-11. [PMID: 16269312 DOI: 10.1016/j.surg.2005.07.011] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2005] [Revised: 07/14/2005] [Accepted: 07/15/2005] [Indexed: 11/16/2022]
Abstract
OBJECTIVES While extrinsic mechanisms of apoptosis in abdominal aortic aneurysms (AAAs) are recognized, this project hypothesizes that an intrinsic, mitochondrial-dependent, mechanism of apoptosis also contributes to experimental AAA formation. METHODS Rat aortas were perfused with either saline or elastase (N = 5 per group) and harvested 7 days postperfusion. The aortas were placed in gluteraldehyde for subsequent transmission electron microscopy, Bouin's solution for TUNEL, or paraformaldehyde for immunohistochemical staining for caspase-9, caspase-3, and Bid. RESULTS Abdominal aortic diameters increased 168 +/- 25% (mean +/- SEM) after elastase perfusion. compared with 30 +/- 5% after saline perfusion (P < .001). Apoptosis of aortic smooth muscle cells, macrophages, and neutrophils was evidenced by transmission electron microscopy and TUNEL in the elastase-perfused aneurysmal aortas. Quantitative analysis of the apoptotic cells revealed a significant (P < .01) increase in the number of total apoptotic cells in the elastase-perfused aortas (12 +/- 3 cells per high-power field), compared with that of saline-infused controls (1.3 +/- 0.2). Caspase-9, the key initiator in the mitochondrial-dependent apoptotic pathway, stained positively in only elastase-perfused aortas. Bid staining was not detected in either the elastase-perfused aortas or the saline controls. CONCLUSIONS Apoptosis is evident in multiple cell lines in elastase-perfused aneurysmal aortas, but rarely observed in control aortas. Caspase-9, the key initiator of intrinsic apoptosis, was documented only in elastase-perfused aortas. These results suggest that mitochondrial-dependent apoptosis is associated with abdominal aortic aneurysm formation.
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Affiliation(s)
- Indranil Sinha
- Jobst Vascular Research Laboratories, Section of Vascular Surgery, Department of Surgery, University of Michigan, Ann Arbor, USA
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