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Salifu MO, Bets I, Gdula AM, Braun M, Watala C, Beckles DL, Ehrlich Y, Kornecki E, Swiatkowska M, Babinska A. Effect of F11 Receptor/Junctional Adhesion Molecule-A-derived Peptide on Neointimal Hyperplasia in a Murine Model. J Vasc Interv Radiol 2024; 35:285-292. [PMID: 37871832 DOI: 10.1016/j.jvir.2023.10.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 09/24/2023] [Accepted: 10/15/2023] [Indexed: 10/25/2023] Open
Abstract
PURPOSE To determine whether inhibition of the F11 receptor/JAM-A (F11R) using F11R-specific antagonist peptide 4D results in inhibition of smooth muscle cell (SMC) proliferation and migration in vivo, known as neointimal hyperplasia (NIH), using a mouse focal carotid artery stenosis model (FCASM). MATERIALS AND METHODS The mouse FCASM was chosen to test the hypothesis because the dominant cell type at the site of stenosis is SMC, similar to that in vascular access stenosis. Fourteen C57BL/6 mice underwent left carotid artery (LCA) partial ligation to induce stenosis, followed by daily injection of peptide 4D in 7 mice and saline in the remaining 7 mice, and these mice were observed for 21 days and then euthanized. Bilateral carotid arteries were excised for histologic analysis of the intima and media areas. RESULTS The mean intimal area was significantly larger in control mice compared with peptide 4D-treated mice (0.031 mm2 [SD ± 0.024] vs 0.0082 mm2 [SD ± 0.0103]; P = .011). The mean intima-to-intima + media area ratio was significantly larger in control mice compared with peptide 4D-treated mice (0.27 [SD ± 0.13] vs 0.089 [SD ± 0.081]; P = .0079). NIH was not observed in the right carotid arteries in both groups. CONCLUSIONS Peptide 4D, an F11R antagonist, significantly inhibited NIH in C57BL/6 mice in a FCASM.
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Affiliation(s)
- Moro O Salifu
- Department of Medicine, SUNY Downstate Health Sciences University, Brooklyn, New York
| | - Iryna Bets
- Department of Medicine, SUNY Downstate Health Sciences University, Brooklyn, New York
| | - Anna M Gdula
- Department of Cytobiology and Proteomics, Biomedical Sciences, Medical University of Lodz, Lodz, Poland
| | - Marcin Braun
- Department of Pathology, Medical University of Lodz, Lodz, Poland
| | - Cezary Watala
- Department of Haemostasis and Haemostatic Disorders, Biomedical Sciences, Medical University of Lodz, Lodz, Poland
| | - Daniel L Beckles
- Department of Medicine, SUNY Downstate Health Sciences University, Brooklyn, New York
| | - Yigal Ehrlich
- Department of Biology and Program in Neuroscience, College of Staten Island of the City, University of New York, Staten Island, New York
| | - Elizabeth Kornecki
- Department of Medicine, SUNY Downstate Health Sciences University, Brooklyn, New York
| | - Maria Swiatkowska
- Department of Cytobiology and Proteomics, Biomedical Sciences, Medical University of Lodz, Lodz, Poland
| | - Anna Babinska
- Department of Medicine, SUNY Downstate Health Sciences University, Brooklyn, New York.
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Kip P, Sluiter TJ, MacArthur MR, Tao M, Jung J, Mitchell SJ, Kooijman S, Kruit N, Gorham J, Seidman JG, Quax PHA, Aikawa M, Ozaki CK, Mitchell JR, de Vries MR. Short-term Pre-operative Methionine Restriction Induces Browning of Perivascular Adipose Tissue and Improves Vein Graft Remodeling in Mice. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.11.02.565269. [PMID: 37961405 PMCID: PMC10635070 DOI: 10.1101/2023.11.02.565269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Abstract
Short-term preoperative methionine restriction (MetR) shows promise as a translatable strategy to modulate the body's response to surgical injury. Its application, however, to improve post-interventional vascular remodeling remains underexplored. Here, we find that MetR protects from arterial intimal hyperplasia in a focal stenosis model and adverse vascular remodeling after vein graft surgery. RNA sequencing reveals that MetR enhances the brown adipose tissue phenotype in arterial perivascular adipose tissue (PVAT) and induces it in venous PVAT. Specifically, PPAR-α was highly upregulated in PVAT-adipocytes. Furthermore, MetR dampens the post-operative pro-inflammatory response to surgery in PVAT-macrophages in vivo and in vitro . This study shows for the first time that the detrimental effects of dysfunctional PVAT on vascular remodeling can be reversed by MetR, and identifies pathways involved in browning of PVAT. Furthermore, we demonstrate the potential of short-term pre-operative MetR as a simple intervention to ameliorate vascular remodeling after vascular surgery.
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Mechelinck M, Hein M, Kupp C, Braunschweig T, Helmedag MJ, Klinkenberg A, Habigt MA, Klinge U, Tolba RH, Uhlig M. Experimental Liver Cirrhosis Inhibits Restenosis after Balloon Angioplasty. Int J Mol Sci 2023; 24:11351. [PMID: 37511114 PMCID: PMC10379020 DOI: 10.3390/ijms241411351] [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: 06/19/2023] [Revised: 07/09/2023] [Accepted: 07/10/2023] [Indexed: 07/30/2023] Open
Abstract
The effect of liver cirrhosis on vascular remodeling in vivo remains unknown. Therefore, this study investigates the influence of cholestatic liver cirrhosis on carotid arterial remodeling. A total of 79 male Sprague Dawley rats underwent bile duct ligation (cirrhotic group) or sham surgery (control group) and 28 days later left carotid artery balloon dilatation; 3, 7, 14 and 28 days after balloon dilatation, the rats were euthanized and carotid arteries were harvested. Histological sections were planimetrized, cell counts determined, and systemic inflammatory parameters measured. Up to day 14 after balloon dilatation, both groups showed a comparable increase in neointima area and degree of stenosis. By day 28, however, both values were significantly lower in the cirrhotic group (% stenosis: 20 ± 8 vs. 42 ± 10, p = 0.010; neointimal area [mm2]: 0.064 ± 0.025 vs. 0.138 ± 0.025, p = 0.024). Simultaneously, cell density in the neointima (p = 0.034) and inflammatory parameters were significantly higher in cirrhotic rats. This study demonstrates that cholestatic liver cirrhosis in rats substantially increases neointimal cell consolidation between days 14 and 28. Thereby, consolidation proved important for the degree of stenosis. This may suggest that patients with cholestatic cirrhosis are at lower risk for restenosis after coronary intervention.
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Affiliation(s)
- Mare Mechelinck
- Department of Anesthesiology, Faculty of Medicine, RWTH Aachen University, 52074 Aachen, Germany
| | - Marc Hein
- Department of Anesthesiology, Faculty of Medicine, RWTH Aachen University, 52074 Aachen, Germany
| | - Carolin Kupp
- Department of Anesthesiology, Faculty of Medicine, RWTH Aachen University, 52074 Aachen, Germany
| | - Till Braunschweig
- Department of Pathology, Faculty of Medicine, RWTH Aachen University, 52074 Aachen, Germany
| | - Marius J Helmedag
- Department of General, Visceral and Transplantation Surgery, Faculty of Medicine, RWTH Aachen University, 52074 Aachen, Germany
| | - Axel Klinkenberg
- Department of Anesthesiology, Faculty of Medicine, RWTH Aachen University, 52074 Aachen, Germany
| | - Moriz A Habigt
- Department of Anesthesiology, Faculty of Medicine, RWTH Aachen University, 52074 Aachen, Germany
| | - Uwe Klinge
- Department of General, Visceral and Transplantation Surgery, Faculty of Medicine, RWTH Aachen University, 52074 Aachen, Germany
| | - René H Tolba
- Institute for Laboratory Animal Science and Experimental Surgery, Faculty of Medicine, RWTH Aachen University, 52074 Aachen, Germany
| | - Moritz Uhlig
- Department of Anesthesiology, Faculty of Medicine, RWTH Aachen University, 52074 Aachen, Germany
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Shi W, Fuad ARM, Li Y, Wang Y, Huang J, Du R, Wang G, Wang Y, Yin T. Biodegradable polymeric nanoparticles increase risk of cardiovascular diseases by inducing endothelium dysfunction and inflammation. J Nanobiotechnology 2023; 21:65. [PMID: 36829180 PMCID: PMC9951517 DOI: 10.1186/s12951-023-01808-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Accepted: 02/06/2023] [Indexed: 02/26/2023] Open
Abstract
Biodegradable polymers are expected to be an alternative to plastics. Because of its high biocompatibility, poly (lactic-co-glycolic acid) (PLGA) is widely used in medicine. It has been reported that micro-nano plastics can be accumulated in the circulatory system and cause tissue injury. With the increasing environmental exposure of degradable polymer nanoparticles (NPs), the impact of this risk factor on cardiovascular disease deserves attention. Thus, we aim to study the harmful effect of PLGA NPs on the process of vascular stenosis which is a typical pathological feature of cardiovascular diseases. We establish a mouse vascular stenosis model with intravenously injecting of PLGA NPs for 2 weeks. This model leads to a significant narrowing of the left common carotid artery which is characterized by the increasing intima area and focal stenosis. We observe that PLGA NPs accelerate stenosis progression by inducing inflammation and impairing vascular function. It promotes the proliferation of smooth muscle cells and causes abnormal collagen distribution. The combination of wall shear stress and PLGA NPs uptake speed up endothelial cell damage, decrease endothelial permeability and cell migration capacity. Our results suggest that PLGA NPs may pose a risk in cardiovascular stenosis which inspire us to concern the biodegradable polymeric materials in our living especially the clinic applications.
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Affiliation(s)
- Wen Shi
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, 400044, China
| | - Atik Rohmana Maftuhatul Fuad
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, 400044, China
| | - Yanhong Li
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, 400044, China
| | - Yang Wang
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, 400044, China
| | - Junyang Huang
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, 400044, China
| | - Ruolin Du
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, 400044, China
| | - Guixue Wang
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, 400044, China
| | - Yazhou Wang
- School of Medicine, Chongqing University, Chongqing, 400030, China.
| | - Tieying Yin
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, 400044, China.
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Macabrey D, Longchamp A, MacArthur MR, Lambelet M, Urfer S, Deglise S, Allagnat F. Sodium thiosulfate acts as a hydrogen sulfide mimetic to prevent intimal hyperplasia via inhibition of tubulin polymerisation. EBioMedicine 2022; 78:103954. [PMID: 35334307 PMCID: PMC8941337 DOI: 10.1016/j.ebiom.2022.103954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 03/08/2022] [Accepted: 03/08/2022] [Indexed: 11/06/2022] Open
Abstract
Background Intimal hyperplasia (IH) remains a major limitation in the long-term success of any type of revascularisation. IH is due to vascular smooth muscle cell (VSMC) dedifferentiation, proliferation and migration. The gasotransmitter Hydrogen Sulfide (H2S), mainly produced in blood vessels by the enzyme cystathionine- γ-lyase (CSE), inhibits IH in pre-clinical models. However, there is currently no H2S donor available to treat patients. Here we used sodium thiosulfate (STS), a clinically-approved source of sulfur, to limit IH. Methods Low density lipoprotein receptor deleted (LDLR−/−), WT or Cse-deleted (Cse−/−) male mice randomly treated with 4 g/L STS in the water bottle were submitted to focal carotid artery stenosis to induce IH. Human vein segments were maintained in culture for 7 days to induce IH. Further in vitro studies were conducted in primary human vascular smooth muscle cells (VSMCs). Findings STS inhibited IH in WT mice, as well as in LDLR−/− and Cse−/− mice, and in human vein segments. STS inhibited cell proliferation in the carotid artery wall and in human vein segments. STS increased polysulfides in vivo and protein persulfidation in vitro, which correlated with microtubule depolymerisation, cell cycle arrest and reduced VSMC migration and proliferation. Interpretation STS, a drug used for the treatment of cyanide poisoning and calciphylaxis, protects against IH in a mouse model of arterial restenosis and in human vein segments. STS acts as an H2S donor to limit VSMC migration and proliferation via microtubule depolymerisation. Funding This work was supported by the Swiss National Science Foundation (grant FN-310030_176158 to FA and SD and PZ00P3-185927 to AL); the Novartis Foundation to FA; and the Union des Sociétés Suisses des Maladies Vasculaires to SD, and the Fondation pour la recherche en chirurgie vasculaire et thoracique.
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Macabrey D, Deslarzes-Dubuis C, Longchamp A, Lambelet M, Ozaki CK, Corpataux JM, Allagnat F, Déglise S. Hydrogen Sulphide Release via the Angiotensin Converting Enzyme Inhibitor Zofenopril Prevents Intimal Hyperplasia in Human Vein Segments and in a Mouse Model of Carotid Artery Stenosis. Eur J Vasc Endovasc Surg 2021; 63:336-346. [PMID: 34916111 DOI: 10.1016/j.ejvs.2021.09.032] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 09/01/2021] [Accepted: 09/17/2021] [Indexed: 02/03/2023]
Abstract
OBJECTIVE Hypertension is a major risk factor for intimal hyperplasia (IH) and re-stenosis following vascular and endovascular interventions. Preclinical studies suggest that hydrogen sulphide (H2S), an endogenous gasotransmitter, limits re-stenosis. While there is no clinically available pure H2S releasing compound, the sulfhydryl containing angiotensin converting enzyme inhibitor zofenopril is a source of H2S. Here, it was hypothesised that zofenopril, due to H2S release, would be superior to other non-sulfhydryl containing angiotensin converting enzyme inhibitors (ACEi) in reducing intimal hyperplasia. METHODS Spontaneously hypertensive male Cx40 deleted mice (Cx40-/-) or wild type (WT) littermates were randomly treated with enalapril 20 mg or zofenopril 30 mg. Discarded human vein segments and primary human smooth muscle cells (SMCs) were treated with the active compound enalaprilat or zofenoprilat. IH was evaluated in mice 28 days after focal carotid artery stenosis surgery and in human vein segments cultured for seven days ex vivo. Human primary smooth muscle cell (SMC) proliferation and migration were studied in vitro. RESULTS Compared with control animals (intima/media thickness 2.3 ± 0.33 μm), enalapril reduced IH in Cx40-/- hypertensive mice by 30% (1.7 ± 0.35 μm; p = .037), while zofenopril abrogated IH (0.4 ± 0.16 μm; p < .002 vs. control and p > .99 vs. sham operated Cx40-/- mice). In WT normotensive mice, enalapril had no effect (0.9665 ± 0.2 μm in control vs. 1.140 ± 0.27 μm; p > .99), while zofenopril also abrogated IH (0.1623 ± 0.07 μm; p < .008 vs. control and p > .99 vs. sham operated WT mice). Zofenoprilat, but not enalaprilat, also prevented IH in human vein segments ex vivo. The effect of zofenopril on carotid and SMCs correlated with reduced SMC proliferation and migration. Zofenoprilat inhibited the mitogen activated protein kinase and mammalian target of rapamycin pathways in SMCs and human vein segments. CONCLUSION Zofenopril provides extra beneficial effects compared with non-sulfhydryl ACEi in reducing SMC proliferation and re-stenosis, even in normotensive animals. These findings may hold broad clinical implications for patients suffering from vascular occlusive diseases and hypertension.
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Affiliation(s)
- Diane Macabrey
- Department of Vascular Surgery, Lausanne University Hospital, Lausanne, Switzerland; Department of Biomedical Sciences, University of Lausanne, Lausanne, Switzerland
| | - Céline Deslarzes-Dubuis
- Department of Vascular Surgery, Lausanne University Hospital, Lausanne, Switzerland; Department of Biomedical Sciences, University of Lausanne, Lausanne, Switzerland
| | - Alban Longchamp
- Department of Vascular Surgery, Lausanne University Hospital, Lausanne, Switzerland; Department of Biomedical Sciences, University of Lausanne, Lausanne, Switzerland
| | - Martine Lambelet
- Department of Vascular Surgery, Lausanne University Hospital, Lausanne, Switzerland; Department of Biomedical Sciences, University of Lausanne, Lausanne, Switzerland
| | - Charles K Ozaki
- Department of Surgery and the Heart and Vascular Centre, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
| | - Jean-Marc Corpataux
- Department of Vascular Surgery, Lausanne University Hospital, Lausanne, Switzerland; Department of Biomedical Sciences, University of Lausanne, Lausanne, Switzerland
| | - Florent Allagnat
- Department of Vascular Surgery, Lausanne University Hospital, Lausanne, Switzerland; Department of Biomedical Sciences, University of Lausanne, Lausanne, Switzerland.
| | - Sébastien Déglise
- Department of Vascular Surgery, Lausanne University Hospital, Lausanne, Switzerland; Department of Biomedical Sciences, University of Lausanne, Lausanne, Switzerland
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Kip P, Tao M, Trocha KM, MacArthur MR, Peters HAB, Mitchell SJ, Mann CG, Sluiter TJ, Jung J, Patterson S, Quax PHA, de Vries MR, Mitchell JR, Keith Ozaki C. Periprocedural Hydrogen Sulfide Therapy Improves Vascular Remodeling and Attenuates Vein Graft Disease. J Am Heart Assoc 2020; 9:e016391. [PMID: 33146045 PMCID: PMC7763704 DOI: 10.1161/jaha.120.016391] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Accepted: 08/31/2020] [Indexed: 11/25/2022]
Abstract
Background Failure rates after revascularization surgery remain high, both in vein grafts (VG) and arterial interventions. One promising approach to improve outcomes is endogenous upregulation of the gaseous transmitter-molecule hydrogen sulfide, via short-term dietary restriction. However, strict patient compliance stands as a potential translational barrier in the vascular surgery patient population. Here we present a new therapeutic approach, via a locally applicable gel containing the hydrogen sulfide releasing prodrug (GYY), to both mitigate graft failure and improve arterial remodeling. Methods and Results All experiments were performed on C57BL/6 (male, 12 weeks old) mice. VG surgery was performed by grafting a donor-mouse cava vein into the right common carotid artery of a recipient via an end-to-end anastomosis. In separate experiments arterial intimal hyperplasia was assayed via a right common carotid artery focal stenosis model. All mice were harvested at postoperative day 28 and artery/graft was processed for histology. Efficacy of hydrogen sulfide was first tested via GYY supplementation of drinking water either 1 week before VG surgery (pre-GYY) or starting immediately postoperatively (post-GYY). Pre-GYY mice had a 36.5% decrease in intimal/media+adventitia area ratio compared with controls. GYY in a 40% Pluronic gel (or vehicle) locally applied to the graft/artery had decreased intimal/media area ratios (right common carotid artery) and improved vessel diameters. GYY-geltreated VG had larger diameters at both postoperative days 14 and 28, and a 56.7% reduction in intimal/media+adventitia area ratios. Intimal vascular smooth muscle cell migration was decreased 30.6% after GYY gel treatment, which was reproduced in vitro. Conclusions Local gel-based treatment with the hydrogen sulfide-donor GYY stands as a translatable therapy to improve VG durability and arterial remodeling after injury.
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Affiliation(s)
- Peter Kip
- Department of Surgery and the Heart and Vascular CenterBrigham & Women’s HospitalHarvard Medical SchoolBostonMA
- Department of Molecular MetabolismHarvard T.H. Chan School of Public HealthBostonMA
- Einthoven Laboratory for Experimental Vascular Medicine and Department of SurgeryLeiden University Medical CenterLeidenThe Netherlands
| | - Ming Tao
- Department of Surgery and the Heart and Vascular CenterBrigham & Women’s HospitalHarvard Medical SchoolBostonMA
| | - Kaspar M. Trocha
- Department of Surgery and the Heart and Vascular CenterBrigham & Women’s HospitalHarvard Medical SchoolBostonMA
- Department of Molecular MetabolismHarvard T.H. Chan School of Public HealthBostonMA
| | - Michael R. MacArthur
- Department of Molecular MetabolismHarvard T.H. Chan School of Public HealthBostonMA
| | - Hendrika A. B. Peters
- Einthoven Laboratory for Experimental Vascular Medicine and Department of SurgeryLeiden University Medical CenterLeidenThe Netherlands
| | - Sarah J. Mitchell
- Department of Molecular MetabolismHarvard T.H. Chan School of Public HealthBostonMA
| | - Charlotte G. Mann
- Department of Molecular MetabolismHarvard T.H. Chan School of Public HealthBostonMA
| | - Thijs J. Sluiter
- Department of Surgery and the Heart and Vascular CenterBrigham & Women’s HospitalHarvard Medical SchoolBostonMA
- Department of Molecular MetabolismHarvard T.H. Chan School of Public HealthBostonMA
- Einthoven Laboratory for Experimental Vascular Medicine and Department of SurgeryLeiden University Medical CenterLeidenThe Netherlands
| | - Jonathan Jung
- Department of Molecular MetabolismHarvard T.H. Chan School of Public HealthBostonMA
- School of MedicineUniversity of GlasgowGlasgowUK
| | - Suzannah Patterson
- Department of Surgery and the Heart and Vascular CenterBrigham & Women’s HospitalHarvard Medical SchoolBostonMA
| | - Paul H. A. Quax
- Einthoven Laboratory for Experimental Vascular Medicine and Department of SurgeryLeiden University Medical CenterLeidenThe Netherlands
| | - Margreet R. de Vries
- Einthoven Laboratory for Experimental Vascular Medicine and Department of SurgeryLeiden University Medical CenterLeidenThe Netherlands
| | - James R. Mitchell
- Department of Molecular MetabolismHarvard T.H. Chan School of Public HealthBostonMA
| | - C. Keith Ozaki
- Department of Surgery and the Heart and Vascular CenterBrigham & Women’s HospitalHarvard Medical SchoolBostonMA
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Longitudinal effects of common carotid artery stenosis on ocular hemodynamics assessed using laser speckle flowgraphy in a rabbit model. Sci Rep 2020; 10:15829. [PMID: 32985560 PMCID: PMC7522272 DOI: 10.1038/s41598-020-72556-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Accepted: 08/31/2020] [Indexed: 11/10/2022] Open
Abstract
Real-time impairment of ocular blood flow (OBF) under common carotid artery stenosis (CCAS) has not been ascertained. We aimed to longitudinally assess the impact of CCAS on OBF using a rabbit model. About 75% stenosis was created by tying the common carotid artery with a plastic mandrel using a nylon suture. The plastic mandrel was gently removed, leaving a ligature. Neurological and behavioral assessments were recorded as the clinical indicator of stroke severity. With laser speckle flowgraphy, the pulse waveform parameters namely mean blur rate (MBR), blowout score (BOS), blowout time (BOT), rising rate, S1-area, falling rate (FR), S2-area, flow acceleration index (FAI), acceleration time index, resistive index (RI) and the difference between the maximum and minimum values of MBR (AC) were assessed in overall, vessel, and tissue regions of the optic nerve head (ONH). Longitudinally, BOS significantly increased until day 19 post-surgery, whereas FAI, RI, and AC significantly decreased. Beyond day 19, BOS, BOT, FR, FAI, RI, and AC significantly decreased. We defined two stages representing impaired vessel conditions, namely the vessel resistance phase, where BOS increases and FAI, RI, and AC decrease, and the vessel elasticity phase where BOS, BOT, FR, FAI, RI and AC decrease. These stages provide information about atherosclerosis, assessable non-invasively through the eye.
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Röhl S, Suur BE, Lengquist M, Seime T, Caidahl K, Hedin U, Arner A, Matic L, Razuvaev A. Lack of PCSK6 Increases Flow-Mediated Outward Arterial Remodeling in Mice. Cells 2020; 9:cells9041009. [PMID: 32325687 PMCID: PMC7225991 DOI: 10.3390/cells9041009] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 04/14/2020] [Accepted: 04/16/2020] [Indexed: 12/17/2022] Open
Abstract
Proprotein convertases (PCSKs) process matrix metalloproteases and cytokines, but their function in the vasculature is largely unknown. Previously, we demonstrated upregulation of PCSK6 in atherosclerotic plaques from symptomatic patients, localization to smooth muscle cells (SMCs) in the fibrous cap and positive correlations with inflammation, extracellular matrix remodeling and cytokines. Here, we hypothesize that PCSK6 could be involved in flow-mediated vascular remodeling and aim to evaluate its role in the physiology of this process using knockout mice. Pcsk6−/− and wild type mice were randomized into control and increased blood flow groups and induced in the right common carotid artery (CCA) by ligation of the left CCA. The animals underwent repeated ultrasound biomicroscopy (UBM) examinations followed by euthanization with subsequent evaluation using wire myography, transmission electron microscopy or histology. The Pcsk6−/− mice displayed a flow-mediated increase in lumen circumference over time, assessed with UBM. Wire myography revealed differences in the flow-mediated remodeling response detected as an increase in lumen circumference at optimal stretch with concomitant reduction in active tension. Furthermore, a flow-mediated reduction in expression of SMC contractile markers SMA, MYH11 and LMOD1 was seen in the Pcsk6−/− media. Absence of PCSK6 increases outward remodeling and reduces medial contractility in response to increased blood flow.
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Affiliation(s)
- Samuel Röhl
- Department of Molecular Medicine and Surgery, Karolinska Institutet, 171 76 Stockholm, Sweden; (S.R.); (B.E.S.); (M.L.); (T.S.); (K.C.); (U.H.)
| | - Bianca E. Suur
- Department of Molecular Medicine and Surgery, Karolinska Institutet, 171 76 Stockholm, Sweden; (S.R.); (B.E.S.); (M.L.); (T.S.); (K.C.); (U.H.)
| | - Mariette Lengquist
- Department of Molecular Medicine and Surgery, Karolinska Institutet, 171 76 Stockholm, Sweden; (S.R.); (B.E.S.); (M.L.); (T.S.); (K.C.); (U.H.)
| | - Till Seime
- Department of Molecular Medicine and Surgery, Karolinska Institutet, 171 76 Stockholm, Sweden; (S.R.); (B.E.S.); (M.L.); (T.S.); (K.C.); (U.H.)
| | - Kenneth Caidahl
- Department of Molecular Medicine and Surgery, Karolinska Institutet, 171 76 Stockholm, Sweden; (S.R.); (B.E.S.); (M.L.); (T.S.); (K.C.); (U.H.)
- Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, 413 45 Gothenburg, Sweden
| | - Ulf Hedin
- Department of Molecular Medicine and Surgery, Karolinska Institutet, 171 76 Stockholm, Sweden; (S.R.); (B.E.S.); (M.L.); (T.S.); (K.C.); (U.H.)
| | - Anders Arner
- Department of Clinical Sciences Lund, Thoracic Surgery, Lund University, 221 84 Lund, Sweden;
| | - Ljubica Matic
- Department of Molecular Medicine and Surgery, Karolinska Institutet, 171 76 Stockholm, Sweden; (S.R.); (B.E.S.); (M.L.); (T.S.); (K.C.); (U.H.)
- Correspondence: (L.M.); (A.R.); Tel.: +46-(0)-73-962-42-79 (L.M.); +46-(0)-76-238-44-75 (A.R.)
| | - Anton Razuvaev
- Department of Molecular Medicine and Surgery, Karolinska Institutet, 171 76 Stockholm, Sweden; (S.R.); (B.E.S.); (M.L.); (T.S.); (K.C.); (U.H.)
- Correspondence: (L.M.); (A.R.); Tel.: +46-(0)-73-962-42-79 (L.M.); +46-(0)-76-238-44-75 (A.R.)
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Remodeling of arterial wall: Response to changes in both blood flow and blood pressure. J Mech Behav Biomed Mater 2018; 77:475-484. [DOI: 10.1016/j.jmbbm.2017.10.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Revised: 09/24/2017] [Accepted: 10/02/2017] [Indexed: 01/01/2023]
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Longchamp A, Tao M, Bartelt A, Ding K, Lynch L, Hine C, Corpataux JM, Kristal BS, Mitchell JR, Ozaki CK. Surgical injury induces local and distant adipose tissue browning. Adipocyte 2016; 5:163-74. [PMID: 27386152 DOI: 10.1080/21623945.2015.1111971] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2015] [Revised: 10/12/2015] [Accepted: 10/16/2015] [Indexed: 12/20/2022] Open
Abstract
The adipose organ, which comprises brown, white and beige adipocytes, possesses remarkable plasticity in response to feeding and cold exposure. The development of beige adipocytes in white adipose tissue (WAT), a process called browning, represents a promising route to treat metabolic disorders. While surgical procedures constantly traumatize adipose tissue, its impact on adipocyte phenotype remains to be established. Herein, we studied the effect of trauma on adipocyte phenotype one day after sham, incision control, or surgical injury to the left inguinal adipose compartment. Caloric restriction was used to control for surgery-associated body temperature changes and weight loss. We characterized the trauma-induced cellular and molecular changes in subcutaneous, visceral, interscapular, and perivascular adipose tissue using histology, immunohistochemistry, gene expression, and flow cytometry analysis. After one day, surgical trauma stimulated adipose tissue browning at the site of injury and, importantly, in the contralateral inguinal depot. Browning was not present after incision only, and was largely independent of surgery-associated body temperature and weight loss. Adipose trauma rapidly recruited monocytes to the injured site and promoted alternatively activated macrophages. Conversely, PDGF receptor-positive beige progenitors were reduced. In this study, we identify adipose trauma as an unexpected driver of selected local and remote adipose tissue browning, holding important implications for the biologic response to surgical injury.
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Affiliation(s)
- Alban Longchamp
- Department of Surgery and the Heart and Vascular Center, Brigham and Women's Hospital/Harvard Medical School, Boston, MA, USA
| | - Ming Tao
- Department of Surgery and the Heart and Vascular Center, Brigham and Women's Hospital/Harvard Medical School, Boston, MA, USA
| | - Alexander Bartelt
- Department of Genetics and Complex Diseases, Harvard School of Public Health, Boston, MA, USA
| | - Kui Ding
- Department of Surgery and the Heart and Vascular Center, Brigham and Women's Hospital/Harvard Medical School, Boston, MA, USA
| | - Lydia Lynch
- Department of Rheumatology, Immunology, and Allergy, Brigham and Women's Hospital/Harvard Medical School, Boston, MA, USA
| | - Christopher Hine
- Department of Genetics and Complex Diseases, Harvard School of Public Health, Boston, MA, USA
| | - Jean-Marc Corpataux
- Department of Thoracic and Vascular Surgery, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland
| | - Bruce S. Kristal
- Department of Neurosurgery, Brigham and Women's Hospital/Harvard Medical School, Boston, MA, USA
| | - James R. Mitchell
- Department of Genetics and Complex Diseases, Harvard School of Public Health, Boston, MA, USA
| | - C. Keith Ozaki
- Department of Surgery and the Heart and Vascular Center, Brigham and Women's Hospital/Harvard Medical School, Boston, MA, USA
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12
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Mauro CR, Tao M, Yu P, Treviño-Villarreal H, Longchamp A, Kristal BS, Ozaki CK, Mitchell JR. Preoperative dietary restriction reduces intimal hyperplasia and protects from ischemia-reperfusion injury. J Vasc Surg 2016; 63:500-9.e1. [PMID: 25124359 PMCID: PMC4320991 DOI: 10.1016/j.jvs.2014.07.004] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2014] [Accepted: 07/03/2014] [Indexed: 10/24/2022]
Abstract
OBJECTIVE Whereas chronic overnutrition is a risk factor for surgical complications, long-term dietary restriction (reduced food intake without malnutrition) protects in preclinical models of surgical stress. Building on the emerging concept that acute preoperative dietary perturbations can affect the body's response to surgical stress, we hypothesized that short-term high-fat diet (HFD) feeding before surgery is detrimental, whereas short-term nutrient/energy restriction before surgery can reverse negative outcomes. We tested this hypothesis in two distinct murine models of vascular surgical injury, ischemia-reperfusion (IR) and intimal hyperplasia (IH). METHODS Short-term overnutrition was achieved by feeding mice a HFD consisting of 60% calories from fat for 2 weeks. Short-term dietary restriction consisted of either 1 week of restricted access to a protein-free diet (protein/energy restriction) or 3 days of water-only fasting immediately before surgery; after surgery, all mice were given ad libitum access to a complete diet. To assess the impact of preoperative nutrition on surgical outcome, mice were challenged in one of two fundamentally distinct surgical injury models: IR injury to either kidney or liver, or a carotid focal stenosis model of IH. RESULTS Three days of fasting or 1 week of preoperative protein/energy restriction attenuated IH development measured 28 days after focal carotid stenosis. One week of preoperative protein/energy restriction also reduced plasma urea, creatinine, and damage to the corticomedullary junction after renal IR and decreased aspartate transaminase, alanine transaminase, and hemorrhagic necrosis after hepatic IR. However, exposure to a HFD for 2 weeks before surgery had no significant impact on kidney or hepatic function after IR or IH after focal carotid stenosis. CONCLUSIONS Short-term dietary restriction immediately before surgery significantly attenuated the vascular wall hyperplastic response and improved IR outcome. The findings suggest plasticity in the body's response to these vascular surgical injuries that can be manipulated by novel yet practical preoperative dietary interventions.
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Affiliation(s)
- Christine R. Mauro
- Department of Surgery, Brigham and Women’s
Hospital/Harvard Medical School, Boston, MA
| | - Ming Tao
- Department of Surgery, Brigham and Women’s
Hospital/Harvard Medical School, Boston, MA
| | - Peng Yu
- Department of Surgery, Brigham and Women’s
Hospital/Harvard Medical School, Boston, MA
| | | | - Alban Longchamp
- Department of Surgery, Brigham and Women’s
Hospital/Harvard Medical School, Boston, MA
| | - Bruce S. Kristal
- Department of Neurosurgery, Brigham and Women’s
Hospital/Harvard Medical School, Boston, MA
| | - C. Keith Ozaki
- Department of Surgery, Brigham and Women’s
Hospital/Harvard Medical School, Boston, MA
| | - James R. Mitchell
- Department of Genetics and Complex Diseases, Harvard School
of Public Health, Boston, MA
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13
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Teixeira R, Vieira MJ, Gonçalves A, Cardim N, Gonçalves L. Ultrasonographic vascular mechanics to assess arterial stiffness: a review. Eur Heart J Cardiovasc Imaging 2015; 17:233-46. [DOI: 10.1093/ehjci/jev287] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/09/2015] [Accepted: 10/04/2015] [Indexed: 12/21/2022] Open
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Lin JB, Phillips EH, Riggins TE, Sangha GS, Chakraborty S, Lee JY, Lycke RJ, Hernandez CL, Soepriatna AH, Thorne BRH, Yrineo AA, Goergen CJ. Imaging of small animal peripheral artery disease models: recent advancements and translational potential. Int J Mol Sci 2015; 16:11131-77. [PMID: 25993289 PMCID: PMC4463694 DOI: 10.3390/ijms160511131] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2015] [Accepted: 03/10/2015] [Indexed: 12/11/2022] Open
Abstract
Peripheral artery disease (PAD) is a broad disorder encompassing multiple forms of arterial disease outside of the heart. As such, PAD development is a multifactorial process with a variety of manifestations. For example, aneurysms are pathological expansions of an artery that can lead to rupture, while ischemic atherosclerosis reduces blood flow, increasing the risk of claudication, poor wound healing, limb amputation, and stroke. Current PAD treatment is often ineffective or associated with serious risks, largely because these disorders are commonly undiagnosed or misdiagnosed. Active areas of research are focused on detecting and characterizing deleterious arterial changes at early stages using non-invasive imaging strategies, such as ultrasound, as well as emerging technologies like photoacoustic imaging. Earlier disease detection and characterization could improve interventional strategies, leading to better prognosis in PAD patients. While rodents are being used to investigate PAD pathophysiology, imaging of these animal models has been underutilized. This review focuses on structural and molecular information and disease progression revealed by recent imaging efforts of aortic, cerebral, and peripheral vascular disease models in mice, rats, and rabbits. Effective translation to humans involves better understanding of underlying PAD pathophysiology to develop novel therapeutics and apply non-invasive imaging techniques in the clinic.
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Affiliation(s)
- Jenny B Lin
- Weldon School of Biomedical Engineering, Purdue University, 206 S. Martin Jischke Drive, Room 3025, West Lafayette, IN 47907, USA.
| | - Evan H Phillips
- Weldon School of Biomedical Engineering, Purdue University, 206 S. Martin Jischke Drive, Room 3025, West Lafayette, IN 47907, USA.
| | - Ti'Air E Riggins
- Weldon School of Biomedical Engineering, Purdue University, 206 S. Martin Jischke Drive, Room 3025, West Lafayette, IN 47907, USA.
| | - Gurneet S Sangha
- Weldon School of Biomedical Engineering, Purdue University, 206 S. Martin Jischke Drive, Room 3025, West Lafayette, IN 47907, USA.
| | - Sreyashi Chakraborty
- School of Mechanical Engineering, Purdue University, West Lafayette, IN 47907, USA.
| | - Janice Y Lee
- Psychological Sciences, Purdue University, West Lafayette, IN 47907, USA.
| | - Roy J Lycke
- Weldon School of Biomedical Engineering, Purdue University, 206 S. Martin Jischke Drive, Room 3025, West Lafayette, IN 47907, USA.
| | - Clarissa L Hernandez
- Weldon School of Biomedical Engineering, Purdue University, 206 S. Martin Jischke Drive, Room 3025, West Lafayette, IN 47907, USA.
| | - Arvin H Soepriatna
- Weldon School of Biomedical Engineering, Purdue University, 206 S. Martin Jischke Drive, Room 3025, West Lafayette, IN 47907, USA.
| | - Bradford R H Thorne
- School of Sciences, Neuroscience, Purdue University, West Lafayette, IN 47907, USA.
| | - Alexa A Yrineo
- Weldon School of Biomedical Engineering, Purdue University, 206 S. Martin Jischke Drive, Room 3025, West Lafayette, IN 47907, USA.
| | - Craig J Goergen
- Weldon School of Biomedical Engineering, Purdue University, 206 S. Martin Jischke Drive, Room 3025, West Lafayette, IN 47907, USA.
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15
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Favreau JT, Liu C, Yu P, Tao M, Mauro C, Gaudette GR, Ozaki CK. Acute reductions in mechanical wall strain precede the formation of intimal hyperplasia in a murine model of arterial occlusive disease. J Vasc Surg 2014; 60:1340-1347. [PMID: 24139980 PMCID: PMC3989476 DOI: 10.1016/j.jvs.2013.07.113] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2013] [Revised: 07/22/2013] [Accepted: 07/27/2013] [Indexed: 01/15/2023]
Abstract
OBJECTIVE Intimal hyperplasia (IH) continues to plague the durability of vascular interventions. Employing a validated murine model, ultrasound biomicroscopy, and speckle-tracking algorithms, we tested the hypothesis that reduced cyclic arterial wall strain results in accentuated arterial wall IH. METHODS A 9-0 suture was tied around the left mouse (n = 10) common carotid artery and a 35-gauge (outer diameter = 0.14 mm) blunt mandrel. We previously showed that mandrel removal results in a ∼78% reduction in diameter and ∼85% reduction in flow, with subsequent delayed induction of IH by day 28. Preoperative, postoperative day-4 (before measurable IH), and postoperative day-27 circumferential wall strains were measured in locations 1, 2, and 3 mm proximal to the stenosis and in the same locations on the contralateral (nonstenosed) carotid. At postoperative day 28, arteries were perfusion fixed and arterial wall morphology was assessed microscopically in the same regions. RESULTS Strains were the same in all locations preoperatively. Wall strain was decreased in all regions proximal to the stenosis by day 4 (0.26 ± 0.01 to 0.11 ± 0.02; P < .001), while strains remained unchanged for the contralateral artery (P = .45). No statistical regional differences in mean strain or IH were noted at any time point for the experimental or contralateral artery. Based on the median, regions were divided into those with low strain (≤0.1) and high strain (>0.1). Average preoperative strains in both groups were the same (0.27 ± 0.09 and 0.27 ± 0.08). All segments in the low-strain group (n = 13) demonstrated significant IH formation by day 28, while only 31% of the high strain group demonstrated any detectable IH at day 28. (Mean low-strain intimal thickness = 32 ± 20 μm, high strain = 8.0 ± 16 μm; P < .01). Changes in cross-sectional area at diastole drove the reduction in strain in the low-strain group, increasing significantly from preoperatively to day 4 (P = .04), while lumen cross-section at systole remained unchanged (P = .46). Cross-sectional area at diastole and systole in the high-strain group remained unchanged from preoperatively to day 4 (P = .67). CONCLUSIONS Early reduction in arterial wall strain is associated with subsequent development of hemodynamically induced IH.
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Affiliation(s)
- John T Favreau
- Department of Biomedical Engineering, Worcester Polytechnic Institute, Worcester, Mass; Division of Vascular and Endovascular Surgery, Brigham and Women's Hospital/Harvard Medical School, Boston, Mass
| | - Chengwei Liu
- Division of Vascular and Endovascular Surgery, Brigham and Women's Hospital/Harvard Medical School, Boston, Mass; Division of Vascular Surgery, The First Affiliated Hospital of Jiamusi University, Jiamusi, Heilongjiang, China
| | - Peng Yu
- Division of Vascular and Endovascular Surgery, Brigham and Women's Hospital/Harvard Medical School, Boston, Mass
| | - Ming Tao
- Division of Vascular and Endovascular Surgery, Brigham and Women's Hospital/Harvard Medical School, Boston, Mass
| | - Christine Mauro
- Division of Vascular and Endovascular Surgery, Brigham and Women's Hospital/Harvard Medical School, Boston, Mass
| | - Glenn R Gaudette
- Department of Biomedical Engineering, Worcester Polytechnic Institute, Worcester, Mass
| | - C Keith Ozaki
- Division of Vascular and Endovascular Surgery, Brigham and Women's Hospital/Harvard Medical School, Boston, Mass.
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16
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Longchamp A, Allagnat F, Berard X, Alonso F, Haefliger JA, Deglise S, Corpataux JM. Procedure for human saphenous veins ex vivo perfusion and external reinforcement. J Vis Exp 2014:e52079. [PMID: 25350681 DOI: 10.3791/52079] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
The mainstay of contemporary therapies for extensive occlusive arterial disease is venous bypass graft. However, its durability is threatened by intimal hyperplasia (IH) that eventually leads to vessel occlusion and graft failure. Mechanical forces, particularly low shear stress and high wall tension, are thought to initiate and to sustain these cellular and molecular changes, but their exact contribution remains to be unraveled. To selectively evaluate the role of pressure and shear stress on the biology of IH, an ex vivo perfusion system (EVPS) was created to perfuse segments of human saphenous veins under arterial regimen (high shear stress and high pressure). Further technical innovations allowed the simultaneous perfusion of two segments from the same vein, one reinforced with an external mesh. Veins were harvested using a no-touch technique and immediately transferred to the laboratory for assembly in the EVPS. One segment of the freshly isolated vein was not perfused (control, day 0). The two others segments were perfused for up to 7 days, one being completely sheltered with a 4 mm (diameter) external mesh. The pressure, flow velocity, and pulse rate were continuously monitored and adjusted to mimic the hemodynamic conditions prevailing in the femoral artery. Upon completion of the perfusion, veins were dismounted and used for histological and molecular analysis. Under ex vivo conditions, high pressure perfusion (arterial, mean = 100 mm Hg) is sufficient to generate IH and remodeling of human veins. These alterations are reduced in the presence of an external polyester mesh.
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Affiliation(s)
- Alban Longchamp
- Department of Surgery, Brigham and Women's Hospital/Harvard Medical School;
| | - Florent Allagnat
- Laboratory of Experimental Medicine, Department of Medicine, CHUV University Hospital
| | - Xavier Berard
- Department of Vascular Surgery, Pellegrin Hospital, University of Bordeaux
| | - Florian Alonso
- Laboratory of Experimental Medicine, Department of Medicine, CHUV University Hospital
| | | | - Sébastien Deglise
- Department of Thoracic and Vascular Surgery, CHUV University Hospital
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Yu X, Takayama T, Goel SA, Shi X, Zhou Y, Kent KC, Murphy WL, Guo LW. A rapamycin-releasing perivascular polymeric sheath produces highly effective inhibition of intimal hyperplasia. J Control Release 2014; 191:47-53. [PMID: 24852098 DOI: 10.1016/j.jconrel.2014.05.017] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2014] [Revised: 04/30/2014] [Accepted: 05/08/2014] [Indexed: 01/02/2023]
Abstract
Intimal hyperplasia produces restenosis (re-narrowing) of the vessel lumen following vascular intervention. Drugs that inhibit intimal hyperplasia have been developed, however there is currently no clinical method of perivascular drug-delivery to prevent restenosis following open surgical procedures. Here we report a poly(ε-caprolactone) (PCL) sheath that is highly effective in preventing intimal hyperplasia through perivascular delivery of rapamycin. We first screened a series of bioresorbable polymers, i.e., poly(lactide-co-glycolide) (PLGA), poly(lactic acid) (PLLA), PCL, and their blends, to identify desired release kinetics and sheath physical properties. Both PLGA and PLLA sheaths produced minimal (<30%) rapamycin release within 50days in PBS buffer. In contrast, PCL sheaths exhibited more rapid and near-linear release kinetics, as well as durable integrity (>90days) as evidenced in both scanning electron microscopy and subcutaneous embedding experiments. Moreover, a PCL sheath deployed around balloon-injured rat carotid arteries was associated with a minimum rate of thrombosis compared to PLGA and PLLA. Morphometric analysis and immunohistochemistry revealed that rapamycin-loaded perivascular PCL sheaths produced pronounced (85%) inhibition of intimal hyperplasia (0.15±0.05 vs 1.01±0.16), without impairment of the luminal endothelium, the vessel's anti-thrombotic layer. Our data collectively show that a rapamycin-loaded PCL delivery system produces substantial mitigation of neointima, likely due to its favorable physical properties leading to a stable yet flexible perivascular sheath and steady and prolonged release kinetics. Thus, a PCL sheath may provide useful scaffolding for devising effective perivascular drug delivery particularly suited for preventing restenosis following open vascular surgery.
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Affiliation(s)
- Xiaohua Yu
- Department of Biomedical Engineering, University of Wisconsin, 5009 Wisconsin Institute of Medical Research, 1111 Highland Ave, Madison, WI, 53705, USA
| | - Toshio Takayama
- Department of Surgery, University of Wisconsin, 5151 Wisconsin Institute of Medical Research, 1111 Highland Ave, Madison, WI 53705, USA
| | - Shakti A Goel
- Department of Surgery, University of Wisconsin, 5151 Wisconsin Institute of Medical Research, 1111 Highland Ave, Madison, WI 53705, USA
| | - Xudong Shi
- Department of Surgery, University of Wisconsin, 5151 Wisconsin Institute of Medical Research, 1111 Highland Ave, Madison, WI 53705, USA
| | - Yifan Zhou
- Department of Surgery, University of Wisconsin, 5151 Wisconsin Institute of Medical Research, 1111 Highland Ave, Madison, WI 53705, USA
| | - K Craig Kent
- Department of Surgery, University of Wisconsin, 5151 Wisconsin Institute of Medical Research, 1111 Highland Ave, Madison, WI 53705, USA; Department of Surgery, University of Wisconsin Hospital and Clinics, 600 Highland Avenue, Madison, WI 53792, USA
| | - William L Murphy
- Department of Biomedical Engineering, University of Wisconsin, 5009 Wisconsin Institute of Medical Research, 1111 Highland Ave, Madison, WI, 53705, USA.
| | - Lian-Wang Guo
- Department of Surgery, University of Wisconsin, 5151 Wisconsin Institute of Medical Research, 1111 Highland Ave, Madison, WI 53705, USA.
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18
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Stubbendorff M, Hua X, Deuse T, Ali Z, Reichenspurner H, Maegdefessel L, Robbins RC, Schrepfer S. Inducing myointimal hyperplasia versus atherosclerosis in mice: an introduction of two valid models. J Vis Exp 2014. [PMID: 24893977 DOI: 10.3791/51459] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
Various in vivo laboratory rodent models for the induction of artery stenosis have been established to mimic diseases that include arterial plaque formation and stenosis, as observed for example in ischemic heart disease. Two highly reproducible mouse models - both resulting in artery stenosis but each underlying a different pathway of development - are introduced here. The models represent the two most common causes of artery stenosis; namely one mouse model for each myointimal hyperplasia, and atherosclerosis are shown. To induce myointimal hyperplasia, a balloon catheter injury of the abdominal aorta is performed. For the development of atherosclerotic plaque, the ApoE -/- mouse model in combination with western fatty diet is used. Different model-adapted options for the measurement and evaluation of the results are named and described in this manuscript. The introduction and comparison of these two models provides information for scientists to choose the appropriate artery stenosis model in accordance to the scientific question asked.
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Affiliation(s)
- Mandy Stubbendorff
- Transplant and Stem Cell Immunobiology Lab, Cardiovascular Research Center, University Hospital Hamburg; Cardiovascular Research Center (CVRC) and DZHK University Hamburg
| | - Xiaoqin Hua
- Transplant and Stem Cell Immunobiology Lab, Cardiovascular Research Center, University Hospital Hamburg; Cardiovascular Research Center (CVRC) and DZHK University Hamburg
| | - Tobias Deuse
- Transplant and Stem Cell Immunobiology Lab, Cardiovascular Research Center, University Hospital Hamburg; Cardiovascular Research Center (CVRC) and DZHK University Hamburg; Department of Cardiovascular Surgery, University Heart Center Hamburg
| | - Ziad Ali
- Center for Interventional Vascular Therapy, Division of Cardiology, Columbia University; Cardiovascular Research Foundation, New York
| | - Hermann Reichenspurner
- Cardiovascular Research Center (CVRC) and DZHK University Hamburg; Department of Cardiovascular Surgery, University Heart Center Hamburg
| | | | - Robert C Robbins
- Department of Cardiothoracic Surgery, Stanford University School of Medicine, Falk Cardiovascular Research Center
| | - Sonja Schrepfer
- Transplant and Stem Cell Immunobiology Lab, Cardiovascular Research Center, University Hospital Hamburg; Cardiovascular Research Center (CVRC) and DZHK University Hamburg; Department of Cardiovascular Surgery, University Heart Center Hamburg; Center for Interventional Vascular Therapy, Division of Cardiology, Columbia University;
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