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Nevzati E, Rey J, Spiessberger A, Moser M, Roethlisberger M, Grüter BE, Widmer HR, Coluccia D, Marbacher S. Aneurysm healing following treatment with biodegradable embolization materials: assessment in a rat sidewall aneurysm model. J Neurointerv Surg 2024:jnis-2023-021260. [PMID: 38262729 DOI: 10.1136/jnis-2023-021260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Accepted: 01/11/2024] [Indexed: 01/25/2024]
Abstract
BACKGROUND Biodegradable materials that dissolve after aneurysm healing are promising techniques in the field of neurointerventional surgery. We investigated the effects of various bioabsorable materials in combination with degradable magnesium alloy stents and evaluated aneurysm healing in a rat aneurysm model. METHODS Saccular aneurysms were created by end-to-side anastomosis in the abdominal aorta of Wistar rats. Untreated arterial grafts were immediately transplanted (vital aneurysms) whereas aneurysms with loss of mural cells were chemically decellularized before implantation. All aneurysms were treated with biodegradable magnesium stents. The animals were assigned to vital aneurysms treated with stent alone or decellularized aneurysms treated with stent alone, detachable coil, or long-term or short-term biodegradable thread. Aneurysm healing, rated microscopically and macroscopically at follow-up days 7 and 21, was defined by both neointima formation and absence of aneurysm volume increase over time. RESULTS Of 56 animals included, significant increases in aneurysm volume 7 days after surgery were observed in aneurysms with vital and decellularized walls treated with a stent only (P=0.043 each group). Twenty-one days after surgery an increase in aneurysm volume was observed in decellularized aneurysms treated with long- and short-term biodegradable threads (P=0.027 and P=0.028, respectively). Histological changes associated with an increase in aneurysm volume were seen for aneurysm wall inflammation, periadventitial fibrosis, and luminal thrombus. CONCLUSIONS An increase in aneurysm volume was associated with an absence of intrasaccular embolization material (early phase) and the breakdown of intrasaccular biodegradable material over time (late phase). Thrombus remnant and aneurysm wall inflammation promote aneurysm volume increase.
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Affiliation(s)
- Edin Nevzati
- Program for Regenerative Neuroscience, Department for BioMedical Research, University of Bern, Bern, Switzerland
- Neurosurgery, Cantonal Hospital Lucerne, Lucerne, Switzerland
- University of Basel, Faculty of Medicine, Basel, Switzerland
| | - Jeannine Rey
- Program for Regenerative Neuroscience, Department for BioMedical Research, University of Bern, Bern, Switzerland
- Neurosurgery, Cantonal Hospital Aarau, Aarau, Switzerland
| | - Alexander Spiessberger
- Program for Regenerative Neuroscience, Department for BioMedical Research, University of Bern, Bern, Switzerland
- Neurosurgery, Cleveland Clinic, Cleveland, Ohio, USA
| | - Manuel Moser
- Neurosurgery, Cantonal Hospital of Graubuenden, Chur, Switzerland
| | - Michel Roethlisberger
- University of Basel, Faculty of Medicine, Basel, Switzerland
- Neurosurgery, University Hospital Basel, Basel, Switzerland
| | - Basil Erwin Grüter
- Program for Regenerative Neuroscience, Department for BioMedical Research, University of Bern, Bern, Switzerland
- Division of Neuroradiology, Department of Radiology, Cantonal Hospital Aarau, Aarau, Switzerland
| | - Hans Rudolf Widmer
- Program for Regenerative Neuroscience, Department for BioMedical Research, University of Bern, Bern, Switzerland
| | - Daniel Coluccia
- Program for Regenerative Neuroscience, Department for BioMedical Research, University of Bern, Bern, Switzerland
- Neurosurgery, Cantonal Hospital Lucerne, Lucerne, Switzerland
| | - Serge Marbacher
- Program for Regenerative Neuroscience, Department for BioMedical Research, University of Bern, Bern, Switzerland
- Neurosurgery, Cantonal Hospital Aarau, Aarau, Switzerland
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Wang Z, Ohtsu N, Tate K, Kojima Y, Saifurrahman H, Ohta M. Migration of endothelial cells on the surface of anodized Ni-Ti stent strut. FRONTIERS IN MEDICAL TECHNOLOGY 2023; 5:1149594. [PMID: 37092024 PMCID: PMC10113440 DOI: 10.3389/fmedt.2023.1149594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2023] [Accepted: 03/23/2023] [Indexed: 04/08/2023] Open
Abstract
BackgroundStent is widely regarded as the main treatment for curing cardiovascular diseases such as stenosis. Previous research has revealed that the damage of endothelial cells (EC), i.e., the components of endothelium, during stent implantation, could lead to severe complications, such as restenosis. To prevent restenosis, enhancements have been made to surface biocompatibility to accelerate the stent endothelialization process. Anodization on the Ni-Ti is a simple and efficient surface modification method to improve the biocompatibility of the Ni-Ti stent surfaces by enhancing the surface hydrophilicity, leading to an increase in the EC activities. The EC activity is known to be affected by the blood flow. Flow change by stent structure may result in EC dysfunctions, thereby leading to restenosis. It is thus essential to investigate the EC activities resulting from the anodization on the Ni-Ti surface under flow conditions.ObjectiveTo study the influence of the endothelialization process on the Ni-Ti stent surface through anodization. The EC attachment and morphology on the anodized stent strut were observed under both with and without the flow conditions.MethodA parallel plate flow chamber was designed to generate a constant wall shear stress (WSS) to study the flow effect on the EC behavior. The hydrophilicity of the Ni-Ti stent strut surface was enhanced by a TiO2 layer fabricated via anodization. The EC distribution on the surface of the anodized nitinol stent strut was observed after 24 h of static (without flow) and flow exposure (with flow) experiment.ResultsUnder the static condition, the EC density on the surface of the anodized Ni-Ti stent strut was higher compared with the control. Under the flow condition, the enhancement of the EC density on the surface of the stent strut with anodization was reduced. The EC demonstrates a long and thin spindle-shaped morphology under the flow condition.ConclusionUnlike the static condition, the EC is demonstrating a long and thin morphology in response to the flow under the flow condition. By improving the surface hydrophilicity, the anodization could enhance the EC migration onto the strut surface, and subsequently, accelerate the Ni-Ti stent endothelialization process. The improvement of the surface hydrophilicity is lower under the flow conditions when compared with the static conditions.
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Affiliation(s)
- Zi Wang
- Institute of Fluid Science, Tohoku University, Sendai, Japan
- Graduate School of Biomedical Engineering, Tohoku University, Sendai, Japan
| | - Naofumi Ohtsu
- Faculty of Engineering, Kitami Institute of Technology, Kitami, Japan
- Correspondence: Makoto Ohta Naofumi Ohtsu
| | - Kasumi Tate
- Faculty of Engineering, Kitami Institute of Technology, Kitami, Japan
| | - Yukiko Kojima
- Institute of Fluid Science, Tohoku University, Sendai, Japan
- Graduate School of Engineering, Tohoku University, Sendai, Japan
| | - Hanif Saifurrahman
- Institute of Fluid Science, Tohoku University, Sendai, Japan
- Graduate School of Engineering, Tohoku University, Sendai, Japan
| | - Makoto Ohta
- Institute of Fluid Science, Tohoku University, Sendai, Japan
- Correspondence: Makoto Ohta Naofumi Ohtsu
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Oo JA, Pálfi K, Warwick T, Wittig I, Prieto-Garcia C, Matkovic V, Tomašković I, Boos F, Izquierdo Ponce J, Teichmann T, Petriukov K, Haydar S, Maegdefessel L, Wu Z, Pham MD, Krishnan J, Baker AH, Günther S, Ulrich HD, Dikic I, Leisegang MS, Brandes RP. Long non-coding RNA PCAT19 safeguards DNA in quiescent endothelial cells by preventing uncontrolled phosphorylation of RPA2. Cell Rep 2022; 41:111670. [PMID: 36384122 PMCID: PMC9681662 DOI: 10.1016/j.celrep.2022.111670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 08/18/2022] [Accepted: 09/24/2022] [Indexed: 11/17/2022] Open
Abstract
In healthy vessels, endothelial cells maintain a stable, differentiated, and growth-arrested phenotype for years. Upon injury, a rapid phenotypic switch facilitates proliferation to restore tissue perfusion. Here we report the identification of the endothelial cell-enriched long non-coding RNA (lncRNA) PCAT19, which contributes to the proliferative switch and acts as a safeguard for the endothelial genome. PCAT19 is enriched in confluent, quiescent endothelial cells and binds to the full replication protein A (RPA) complex in a DNA damage- and cell-cycle-related manner. Our results suggest that PCAT19 limits the phosphorylation of RPA2, primarily on the serine 33 (S33) residue, and thereby facilitates an appropriate DNA damage response while slowing cell cycle progression. Reduction in PCAT19 levels in response to either loss of cell contacts or knockdown promotes endothelial proliferation and angiogenesis. Collectively, PCAT19 acts as a dynamic guardian of the endothelial genome and facilitates rapid switching from quiescence to proliferation.
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Affiliation(s)
- James A Oo
- Institute for Cardiovascular Physiology, Goethe University, Theodor-Stern-Kai 7, 60596 Frankfurt, Germany; German Center of Cardiovascular Research (DZHK), Partner Site RheinMain, Frankfurt, Germany
| | - Katalin Pálfi
- Institute for Cardiovascular Physiology, Goethe University, Theodor-Stern-Kai 7, 60596 Frankfurt, Germany; German Center of Cardiovascular Research (DZHK), Partner Site RheinMain, Frankfurt, Germany
| | - Timothy Warwick
- Institute for Cardiovascular Physiology, Goethe University, Theodor-Stern-Kai 7, 60596 Frankfurt, Germany; German Center of Cardiovascular Research (DZHK), Partner Site RheinMain, Frankfurt, Germany
| | - Ilka Wittig
- Institute for Cardiovascular Physiology, Goethe University, Theodor-Stern-Kai 7, 60596 Frankfurt, Germany; German Center of Cardiovascular Research (DZHK), Partner Site RheinMain, Frankfurt, Germany; Functional Proteomics, Institute for Cardiovascular Physiology, Goethe University, 60596 Frankfurt, Germany
| | - Cristian Prieto-Garcia
- Institute of Biochemistry II, Faculty of Medicine, Goethe University, 60596 Frankfurt, Germany
| | - Vigor Matkovic
- Institute of Biochemistry II, Faculty of Medicine, Goethe University, 60596 Frankfurt, Germany; Buchmann Institute for Molecular Life Sciences, Goethe University, 60438 Frankfurt, Germany
| | - Ines Tomašković
- Institute of Biochemistry II, Faculty of Medicine, Goethe University, 60596 Frankfurt, Germany
| | - Frederike Boos
- Institute for Cardiovascular Physiology, Goethe University, Theodor-Stern-Kai 7, 60596 Frankfurt, Germany; German Center of Cardiovascular Research (DZHK), Partner Site RheinMain, Frankfurt, Germany
| | - Judit Izquierdo Ponce
- Institute for Cardiovascular Physiology, Goethe University, Theodor-Stern-Kai 7, 60596 Frankfurt, Germany
| | - Tom Teichmann
- Institute for Cardiovascular Physiology, Goethe University, Theodor-Stern-Kai 7, 60596 Frankfurt, Germany; German Center of Cardiovascular Research (DZHK), Partner Site RheinMain, Frankfurt, Germany
| | | | - Shaza Haydar
- Institute for Cardiovascular Physiology, Goethe University, Theodor-Stern-Kai 7, 60596 Frankfurt, Germany; German Center of Cardiovascular Research (DZHK), Partner Site RheinMain, Frankfurt, Germany
| | - Lars Maegdefessel
- Department of Vascular and Endovascular Surgery, Klinikum rechts der Isar-Technical University Munich, 81675 Munich, Germany; German Center of Cardiovascular Research (DZHK), Partner Site Munich, Munich, Germany
| | - Zhiyuan Wu
- Department of Vascular and Endovascular Surgery, Klinikum rechts der Isar-Technical University Munich, 81675 Munich, Germany; German Center of Cardiovascular Research (DZHK), Partner Site Munich, Munich, Germany
| | - Minh Duc Pham
- Institute of Cardiovascular Regeneration, Center for Molecular Medicine, Goethe University, 60596 Frankfurt, Germany; Genome Biologics, Theodor-Stern-Kai 7, 60596 Frankfurt, Germany
| | - Jaya Krishnan
- German Center of Cardiovascular Research (DZHK), Partner Site RheinMain, Frankfurt, Germany; Institute of Cardiovascular Regeneration, Center for Molecular Medicine, Goethe University, 60596 Frankfurt, Germany; Cardio-Pulmonary Institute, Giessen, Germany
| | - Andrew H Baker
- The Queen's Medical Research Institute, Centre for Cardiovascular Science, University of Edinburgh, Edinburgh EH16 4TJ, Scotland; CARIM Institute, University of Maastricht, Universiteitssingel 50, 6200 Maastricht, the Netherlands
| | - Stefan Günther
- Max Planck Institute for Heart and Lung Research, 61231 Bad Nauheim, Germany
| | - Helle D Ulrich
- Institute of Molecular Biology (IMB), 55128 Mainz, Germany
| | - Ivan Dikic
- Institute of Biochemistry II, Faculty of Medicine, Goethe University, 60596 Frankfurt, Germany; Buchmann Institute for Molecular Life Sciences, Goethe University, 60438 Frankfurt, Germany; Max Planck Institute of Biophysics, Max-von-Laue Straße 3, 60438 Frankfurt, Germany
| | - Matthias S Leisegang
- Institute for Cardiovascular Physiology, Goethe University, Theodor-Stern-Kai 7, 60596 Frankfurt, Germany; German Center of Cardiovascular Research (DZHK), Partner Site RheinMain, Frankfurt, Germany.
| | - Ralf P Brandes
- Institute for Cardiovascular Physiology, Goethe University, Theodor-Stern-Kai 7, 60596 Frankfurt, Germany; German Center of Cardiovascular Research (DZHK), Partner Site RheinMain, Frankfurt, Germany.
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Marei I, Ahmetaj-Shala B, Triggle CR. Biofunctionalization of cardiovascular stents to induce endothelialization: Implications for in- stent thrombosis in diabetes. Front Pharmacol 2022; 13:982185. [PMID: 36299902 PMCID: PMC9589287 DOI: 10.3389/fphar.2022.982185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Accepted: 08/31/2022] [Indexed: 11/13/2022] Open
Abstract
Stent thrombosis remains one of the main causes that lead to vascular stent failure in patients undergoing percutaneous coronary intervention (PCI). Type 2 diabetes mellitus is accompanied by endothelial dysfunction and platelet hyperactivity and is associated with suboptimal outcomes following PCI, and an increase in the incidence of late stent thrombosis. Evidence suggests that late stent thrombosis is caused by the delayed and impaired endothelialization of the lumen of the stent. The endothelium has a key role in modulating inflammation and thrombosis and maintaining homeostasis, thus restoring a functional endothelial cell layer is an important target for the prevention of stent thrombosis. Modifications using specific molecules to induce endothelial cell adhesion, proliferation and function can improve stents endothelialization and prevent thrombosis. Blood endothelial progenitor cells (EPCs) represent a potential cell source for the in situ-endothelialization of vascular conduits and stents. We aim in this review to summarize the main biofunctionalization strategies to induce the in-situ endothelialization of coronary artery stents using circulating endothelial stem cells.
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Affiliation(s)
- Isra Marei
- Department of Pharmacology, Weill Cornell Medicine- Qatar, Doha, Qatar
- National Heart and Lung Institute, Imperial College London, London, United Kingdom
- *Correspondence: Isra Marei, ; Chris R. Triggle,
| | | | - Chris R. Triggle
- Department of Pharmacology, Weill Cornell Medicine- Qatar, Doha, Qatar
- *Correspondence: Isra Marei, ; Chris R. Triggle,
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Li ZK, Li CH, Yue AC, Song HP, Liu XH, Zhou XD, Bi MJ, Han W, Li Q. Therapeutic effect and molecular mechanism of Salvia Miltiorrhiza on rats with acute brain injury after carbon monoxide poisoning based on the strategy of internet pharmacology. ENVIRONMENTAL TOXICOLOGY 2022; 37:413-434. [PMID: 34761859 DOI: 10.1002/tox.23408] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 10/27/2021] [Accepted: 10/30/2021] [Indexed: 06/13/2023]
Abstract
The pathogenesis of brain injury caused by carbon monoxide poisoning (COP) is very complex, and there is no exact and reliable treatment in clinic. In the present study, we screened the therapeutic target and related signal pathway of Salvia Miltiorrhiza for acute COP brain injury, and clarified the pharmacological mechanism of multicomponent, multitarget, and multisignal pathway in Salvia Miltiorrhiza by network pharmacology. To further verify the therapeutic effect of Salvia Miltiorrhiza on acute brain injury based on the results of network analysis, a total of 216 male healthy Sprague Dawley rats were collected in the present study and randomly assigned to a normal control group, a COP group and a Tanshinone IIA sulfonate treatment group (72 rats in each group). The rat model of acute severe COP was established by the secondary inhalation in a hyperbaric oxygen chamber. We found that Salvia Miltiorrhiza had multiple active components, and played a role in treating acute brain injury induced by COP through multiple targets and multiple pathways, among them, MAPK/ERK1/2 signaling pathway was one of the most important. COP can start apoptosis process, activate the MAPK/ERK1/2 signaling pathway, and promote the expression of VEGF-A protein and the formation of brain edema. Tanshinone IIA can effectively inhibit apoptosis, up-regulate the expressions of VEGF-A, P-MEK1/2 and P-ERK1/2 proteins, thereby protect endothelial cells, promote angiogenesis and microcirculation, and finally alleviate brain edema.
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Affiliation(s)
- Ze-Kun Li
- Emergency department, Shenzhen University General Hospital, Shenzhen, China
- School of Medicine, Institute of Integrated Medicine, Qingdao University, Qingdao, China
| | - Chun-Hua Li
- Department of Respiratory Medicine, Sami Medical Center, Shenzhen, China
| | - Ao-Chun Yue
- School of Medicine, Institute of Integrated Medicine, Qingdao University, Qingdao, China
| | - Hui-Ping Song
- First Clinical Medical College, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Xu-Han Liu
- Emergency department, Shenzhen University General Hospital, Shenzhen, China
| | - Xu-Dong Zhou
- Emergency department, Shenzhen University General Hospital, Shenzhen, China
| | - Ming-Jun Bi
- Physical Examination Centre, Yuhuangding Hospital Affiliated to Qingdao University, Yantai, Shandong, China
| | - Wei Han
- Emergency department, Shenzhen University General Hospital, Shenzhen, China
| | - Qin Li
- Emergency department, Shenzhen University General Hospital, Shenzhen, China
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Wang Z, Putra NK, Anzai H, Ohta M. Endothelial Cell Distribution After Flow Exposure With Two Stent Struts Placed in Different Angles. Front Physiol 2022; 12:733547. [PMID: 35095542 PMCID: PMC8793281 DOI: 10.3389/fphys.2021.733547] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Accepted: 10/14/2021] [Indexed: 12/30/2022] Open
Abstract
Stent implantation has been a primary treatment for stenosis and other intravascular diseases. However, the struts expansion procedure might cause endothelium lesion and the structure of the struts could disturb the blood flow environment near the wall of the blood vessel. These changes could damage the vascular innermost endothelial cell (EC) layer and pose risks of restenosis and post-deployment thrombosis. This research aims to investigate the effect of flow alterations on EC distribution in the presence of gap between two struts within the parallel flow chamber. To study how the gap presence impacts EC migration and the endothelialization effect on the surface of the struts, two struts were placed with specific orientations and positions on the EC layer in the flow chamber. After a 24-h exposure under wall shear stress (WSS), we observed the EC distribution conditons especially in the gap area. We also conducted computational fluid dynamics (CFD) simulations to calculate the WSS distribution. High EC-concentration areas on the bottom plate corresponded to the high WSS by the presence of gap between the two struts. To find the relation between the WSS and EC distributions on the fluorescence images, WSS condition by CFD simulation could be helpful for the EC distribution. The endothelialization rate, represented by EC density, on the downstream sides of both struts was higher than that on the upstream sides. These observations were made in the flow recirculation at the gap area between two struts. On two side surfaces between the gaps, meaning the downstream at the first and the upstream at the second struts, EC density differences on the downstream surfaces of the first strut were higher than on the upstream surfaces of the second strut. Finally, EC density varied along the struts when the struts were placed at tilted angles. These results indicate that, by the presence of gap between the struts, ECs distribution could be predicted in both perpendicular and tiled positions. And tiled placement affect ECs distribution on the strut side surfaces.
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Affiliation(s)
- Zi Wang
- Institute of Fluid Science, Tohoku University, Sendai, Japan
- Graduate School of Biomedical Engineering, Tohoku University, Sendai, Japan
| | - Narendra Kurnia Putra
- Instrumentation and Control Research Group, Faculty of Industrial Technology, Institut Teknologi Bandung, Bandung, Indonesia
| | - Hitomi Anzai
- Institute of Fluid Science, Tohoku University, Sendai, Japan
| | - Makoto Ohta
- Institute of Fluid Science, Tohoku University, Sendai, Japan
- *Correspondence: Makoto Ohta,
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Favorable Vasomotor Function after Drug-Coated Balloon-Only Angioplasty of De Novo Native Coronary Artery Lesions. J Clin Med 2022; 11:jcm11020299. [PMID: 35053994 PMCID: PMC8779419 DOI: 10.3390/jcm11020299] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Revised: 01/05/2022] [Accepted: 01/05/2022] [Indexed: 02/05/2023] Open
Abstract
Balloon-injured coronary segments are known to harbor abnormal vasomotion. We evaluated whether de novo coronary lesions treated using drug-coated balloon (DCB) are prone to vasospasm and how they respond to ergonovine and nitrate. Among 132 DCB angioplasty recipients followed, 89 patients underwent ergonovine provocation test at 6–9 months follow-up. Within-subject ergonovine- and nitrate-induced diameter changes were compared among three different sites: DCB-treated vs. angiographically normal vs. segment showing prominent vasoreactivity (spastic). No patient experienced clinically refractory vasospastic angina or symptom-driven revascularization during follow-up. Ergonovine induced vasospasm in seven patients; all were multifocal spasm either involving (n = 2) or rather sparing DCB-treated segments (n = 5). None showed focal spasm that exclusively involved DCB-treated lesions. Among 27 patients with vasospastic features, DCB-treated segments showed less vasoconstriction than spastic counterparts (p < 0.001). A total of 110 DCB-treated lesions were analyzed to assess vasomotor function. Vasomotor function, defined as a combined constrictor and dilator response, was comparable between DCB-treated and angiographically normal segments (p = 0.173), while significant differences were observed against spastic counterparts (p < 0.001). In our study, DCB-treated lesions were not particularly vulnerable to vasospasm and were found to have vasomotor function similar to angiographically normal segments, supporting safety of DCB-only strategy in treating de novo native coronary lesions.
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Liu H, Zhao Y, Lu Y, Zhou S, Zhang Y, Zhao J, Yang H, Xing J, Feng R, Xue X, Tao H, Song R, Gu H. The Drug Coated Balloon-Only Strategy for Treatment of de Novo Left Main Coronary Artery Bifurcation Lesion: Stentless Strategy. Clin Appl Thromb Hemost 2022; 28:10760296221118489. [PMID: 35945818 PMCID: PMC9373168 DOI: 10.1177/10760296221118489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
The study aimed to evaluate the efficacy and safety of drug coated balloon-only
strategy (DCB-only) in the treatment of de novo left main coronary artery (LM)
bifurcation lesions. 85 patients were enrolled in this study and classified them
into two groups: DCB-only group (n = 36) and DES group (n = 49). The MLD of
target vessels was measured before and immediately after percutaneous coronary
intervention (PCI) and late luminal loss (LLL) were also calculated. And the
occurrence of major adverse cardiovascular events (MACE) was also evaluated.
Compared with that before PCI, the MLD of target lesions significantly increased
immediately after PCI (P < .05) and no MACE was recorded
during the perioperative period both in two groups. The MLD at follow-up was
significantly higher than that before both DCB and DES treatment. Compared with
the DES group, the MLD of the DCB group was smaller than immediately after PCI
in the LM and LAD (P < .05). The LLL of LAD in DCB group was
smaller than that in DES group (P < .05). There was no
significant difference in the incidence of luminal restenosis at the target
lesion between the two groups, and no significant difference in the incidence of
MACE (P > .05). The use of DCB-only to treat de novo LM
bifurcation lesions is effective and relatively safe, which provides new ideas
for the treatment of LM coronary artery bifurcation lesions in the future.
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Affiliation(s)
- Hengdao Liu
- Department of Cardiology, 191599Zhengzhou University First Affiliated Hospital, Zhengzhou, Henan, China
| | - Yanyan Zhao
- Department of Cardiology, 191599Zhengzhou University First Affiliated Hospital, Zhengzhou, Henan, China
| | - Yang Lu
- Department of Emergency, Peking University Shenzhen Hospital, Shenzhen, Guangdong, China
| | - Shilong Zhou
- Department of Cardiology, 191599Zhengzhou University First Affiliated Hospital, Zhengzhou, Henan, China
| | - Yubin Zhang
- Department of Cardiology, 191599Zhengzhou University First Affiliated Hospital, Zhengzhou, Henan, China
| | - Junwei Zhao
- Department of Cardiology, Yexian People's Hospital, Pingdingshan, Henan, China
| | - Huilin Yang
- Department of Cardiology, Nanle people's Hospital, Puyang, Henan, China
| | - Junhui Xing
- Department of Cardiology, 191599Zhengzhou University First Affiliated Hospital, Zhengzhou, Henan, China
| | - Ruihan Feng
- Department of Cardiology, Xinxiang Central Hospital, Xinxiang, Henan, China
| | - XiaoFei Xue
- Department of Cardiology, 191599Zhengzhou University First Affiliated Hospital, Zhengzhou, Henan, China
| | - Hailong Tao
- Department of Cardiology, 191599Zhengzhou University First Affiliated Hospital, Zhengzhou, Henan, China
| | - Ruipeng Song
- Department of Endocrinology, The Third People's Provincial Hospital of Henan Province, Zhengzhou, Henan, China
| | - Heping Gu
- Department of Cardiology, 191599Zhengzhou University First Affiliated Hospital, Zhengzhou, Henan, China
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Bioengineering silk into blood vessels. Biochem Soc Trans 2021; 49:2271-2286. [PMID: 34495327 DOI: 10.1042/bst20210359] [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: 07/01/2021] [Revised: 08/05/2021] [Accepted: 08/11/2021] [Indexed: 11/17/2022]
Abstract
The rising incidence of cardiovascular disease has increased the demand for small diameter (<6 mm) synthetic vascular grafts for use in bypass surgery. Clinically available synthetic grafts (polyethylene terephthalate and expanded polytetrafluorethylene) are incredibly strong, but also highly hydrophobic and inelastic, leading to high rates of failure when used for small diameter bypass. The poor clinical outcomes of commercial synthetic grafts in this setting have driven significant research in search of new materials that retain favourable mechanical properties but offer improved biocompatibility. Over the last several decades, silk fibroin derived from Bombyx mori silkworms has emerged as a promising biomaterial for use in vascular applications. Progress has been driven by advances in silk manufacturing practices which have allowed unprecedented control over silk strength, architecture, and the ensuing biological response. Silk can now be manufactured to mimic the mechanical properties of native arteries, rapidly recover the native endothelial cell layer lining vessels, and direct positive vascular remodelling through the regulation of local inflammatory responses. This review summarises the advances in silk purification, processing and functionalisation which have allowed the production of robust vascular grafts with promise for future clinical application.
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Immunomodulation of IL-33 and IL-37 with Vitamin D in the Neointima of Coronary Artery: A Comparative Study between Balloon Angioplasty and Stent in Hyperlipidemic Microswine. Int J Mol Sci 2021; 22:ijms22168824. [PMID: 34445530 PMCID: PMC8396169 DOI: 10.3390/ijms22168824] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Revised: 08/12/2021] [Accepted: 08/14/2021] [Indexed: 12/15/2022] Open
Abstract
Inflammation is a major contributor to the development and progression of atherosclerosis. Interleukin (IL)-33 and IL-37, members of the IL-1 family, modulate inflammation, with IL-33 having a pro-inflammatory effect and IL-37 having anti-inflammatory properties. IL-37 is constitutively expressed at low levels but upregulated in inflammatory contexts. The aim of this study was to evaluate the effect of vitamin D on the expression of IL-33, IL-37, macrophages, and caspase-1 in the neointimal tissue of coronary artery in Yucatan microswine with vitamin D deficient, sufficient, and supplemented status. The intimal injury was induced by balloon angioplasty and stenting in the coronary artery, and tissues were harvested after 6 months. The expression of various proteins of interest was evaluated by immunostaining. Increased expression of IL-33 and IL-37 in the neointimal tissue of the vitamin D deficient, as compared to the sufficient and supplemented microswine, as revealed by histological evaluation and semi-quantitative analysis, suggested the immunomodulatory effect of vitamin D on the expression of IL-33 and IL-37. The minimal expression or absence of IL-33 and IL-37 expression in stented arteries is suggestive of an attenuated inflammatory response in stented arteries, compared to balloon angioplasty. The decreased IL-33 expression in the sufficient and supplemented microswine could be a potential mechanism for controlling the inflammatory process and neointima formation leading to attenuated luminal narrowing of the coronary artery. Overall, these results support supplementation of vitamin D to attenuate inflammation, neointima formation, and restenosis.
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11
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Yang F, Xu L, Guo G, Wang Y. Visible light-induced cross-linking of porcine pericardium for the improvement of endothelialization, anti-tearing, and anticalcification properties. J Biomed Mater Res A 2021; 110:31-42. [PMID: 34245103 DOI: 10.1002/jbm.a.37263] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 05/28/2021] [Accepted: 06/29/2021] [Indexed: 12/18/2022]
Abstract
Population aging and the development of transcatheter aortic valve replacement boost the implantation of bioprosthetic heart valves (BHVs) in patients worldwide. However, the traditional glutaraldehyde cross-linked BHVs fail within 12-15 years mainly due to leaflet tear and calcification defects. In this study, a novel visible light-induced cross-linking of the porcine pericardium (PP) was realized by the photo-oxidation of the furfuryl-modified PP in the presence of Rose Bengal. The resulting material showed comparable collagen stability with the glutaraldehyde cross-linked PP and appropriate biomechanical properties such as tensile strength, modulus, and elongation, suggesting that this material could meet the general requirement for BHVs. Besides, this cross-linked PP showed significantly improved cytocompatibility compared with the Glut-cross-linked PP, with no cytotoxicity to L929 cells and the ability to support HUVECgrowth. Meanwhile, this material showed superior anti-tearing performance and much less calcification than the Glut-cross-linked PP in hope of reducing the risk of BHV failure. Considering these results, the visible light-induced cross-linking method proposed in this study could provide a promising way to construct a biocompatible and robust biomaterial for the fabrication of the BHV.
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Affiliation(s)
- Fan Yang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, China
| | - Liangpeng Xu
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, China
| | - Gaoyang Guo
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, China
| | - Yunbing Wang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, China
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12
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Vozzi F, Cecchettini A, Cabiati M, Mg F, Aretini P, Del Ry S, Rocchiccioli S, Pelosi G. Modulated molecular markers of restenosis and thrombosis by in-vitrovascular cells exposed to bioresorbable scaffolds. Biomed Mater 2021; 16. [PMID: 34020430 DOI: 10.1088/1748-605x/ac0401] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Accepted: 05/21/2021] [Indexed: 01/06/2023]
Abstract
Drug-eluting bioresorbable vascular scaffolds (BVSs) have emerged as a potential breakthrough for the treatment of coronary artery stenosis, providing mechanical support and drug delivery followed by complete resorption. Restenosis and thrombosis remain the primary limitations in clinical use. The study aimed to identify potential markers of restenosis and thrombosis analyzing the vascular wall cell transcriptomic profile modulation triggered by BVS at different values of shear stress (SS). Human coronary artery endothelial cells and smooth muscle cells were cultured under SS (1 and 20 dyne cm-2) for 6 h without and with application of BVS and everolimus 600 nM. Cell RNA-Seq and bioinformatics analysis identified modulated genes by direct comparison of SS conditions and Gene Ontology (GO). The results of different experimental conditions and GO analysis highlighted the modulation of specific genes as semaphorin 3E, mesenchyme homeobox 2, bone morphogenetic protein 4, (heme oxygenase 1) and selectin E, with different roles in pathological evolution of disease. Transcriptomic analysis of dynamic vascular cell cultures identifies candidate genes related to pro-restenotic and pro-thrombotic mechanisms in anin-vitrosetting of BVS, which are not adequately contrasted by everolimus addition.
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Affiliation(s)
- F Vozzi
- Institute of Clinical Physiology IFC-CNR, Via Giuseppe Moruzzi 1, Pisa, Italy
| | - A Cecchettini
- Institute of Clinical Physiology IFC-CNR, Via Giuseppe Moruzzi 1, Pisa, Italy.,Department of Clinical and Experimental Medicine, University of Pisa, Via Volta 4, Pisa, Italy
| | - M Cabiati
- Institute of Clinical Physiology IFC-CNR, Via Giuseppe Moruzzi 1, Pisa, Italy
| | - Fornaro Mg
- Institute of Clinical Physiology IFC-CNR, Via Giuseppe Moruzzi 1, Pisa, Italy
| | - P Aretini
- Fondazione Pisana per la Scienza ONLUS, Via Ferruccio Giovannini, 13, San Giuliano Terme, Italy
| | - S Del Ry
- Institute of Clinical Physiology IFC-CNR, Via Giuseppe Moruzzi 1, Pisa, Italy
| | - S Rocchiccioli
- Institute of Clinical Physiology IFC-CNR, Via Giuseppe Moruzzi 1, Pisa, Italy
| | - G Pelosi
- Institute of Clinical Physiology IFC-CNR, Via Giuseppe Moruzzi 1, Pisa, Italy
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13
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Miyazaki Y, Matsubara S, Ishihara M, Minami YO, Kinoshita K, Takai H, Hirai S, Hara K, Yagi K, Uno M. Improvement of Hemifacial Spasm after Stent-assisted Coil Embolization for Ipsilateral Vertebral Artery Dissecting Aneurysm. NMC Case Rep J 2021; 8:143-150. [PMID: 35079456 PMCID: PMC8769391 DOI: 10.2176/nmccrj.cr.2020-0121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Accepted: 07/06/2020] [Indexed: 11/20/2022] Open
Abstract
Microvascular decompression (MVD) is the gold standard in the treatment of hemifacial spasm (HFS), and endovascular surgery has been described as a treatment only for aneurysm-induced HFS in several previous cases. We describe symptomatic HFS caused by a normal vertebral artery (VA) trunk adjacent to the ipsilateral dissecting VA aneurysm completely cured after stent-assisted coil embolization. A 52-year-old man presented with a 2-month history of gradually worsening left HFS. Magnetic resonance imaging (MRI) and cerebral angiography revealed a dissecting VA aneurysm on the left side. Based on the findings from preoperative MRI, not the aneurysmal dome itself, but the VA trunk just distal to the aneurysmal dome was considered likely to be compressing the root exit zone (REZ) of the facial nerve. Stent-assisted coil embolization was conducted for the VA aneurysm, and the stent was deployed to cover the wide neck of the aneurysm and offending zone of the VA trunk simultaneously. HFS started to show improvement just after the procedure and complete disappearance within 1 year. HFS was completely resolved by stenting of the offending artery. Stents may show efficacy for "intra-arterial decompression" by reducing pulsatility against the REZ of the facial nerve due to the thickness and rigidity of the stent metal and delayed endothelialization.
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Affiliation(s)
- Yuko Miyazaki
- Department of Neurosurgery, Kawasaki Medical School, Kurashiki, Okayama, Japan
| | - Shunji Matsubara
- Department of Neurosurgery, Kawasaki Medical School, Kurashiki, Okayama, Japan
| | - Manabu Ishihara
- Department of Neurosurgery, Kawasaki Medical School, Kurashiki, Okayama, Japan
| | - Yukari Ogawa Minami
- Department of Neurosurgery, Kawasaki Medical School, Kurashiki, Okayama, Japan
| | - Keita Kinoshita
- Department of Neurosurgery, Kawasaki Medical School, Kurashiki, Okayama, Japan
| | - Hiroki Takai
- Department of Neurosurgery, Kawasaki Medical School, Kurashiki, Okayama, Japan
| | - Satoshi Hirai
- Department of Neurosurgery, Kawasaki Medical School, Kurashiki, Okayama, Japan
| | - Keijirou Hara
- Department of Neurosurgery, Kawasaki Medical School, Kurashiki, Okayama, Japan
| | - Kenji Yagi
- Department of Neurosurgery, Kawasaki Medical School, Kurashiki, Okayama, Japan
| | - Masaaki Uno
- Department of Neurosurgery, Kawasaki Medical School, Kurashiki, Okayama, Japan
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14
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Jiang C, Li R, Xiu C, Ma X, Hu H, Wei L, Tang Y, Tao M, Zhao J. Upregulating CXCR7 accelerates endothelial progenitor cell-mediated endothelial repair by activating Akt/Keap-1/Nrf2 signaling in diabetes mellitus. Stem Cell Res Ther 2021; 12:264. [PMID: 33941256 PMCID: PMC8091720 DOI: 10.1186/s13287-021-02324-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Accepted: 04/02/2021] [Indexed: 11/15/2022] Open
Abstract
Background Endothelial progenitor cell (EPC) dysfunction contributes to vascular disease in diabetes mellitus. However, the molecular mechanism underlying EPC dysfunction and its contribution to delayed reendothelialization in diabetes mellitus remain unclear. Our study aimed to illustrate the potential molecular mechanism underlying diabetic EPC dysfunction in vivo and in vitro. Furthermore, we assessed the effect of EPC transplantation on endothelial regeneration in diabetic rats. Methods Late outgrowth EPCs were isolated from the bone marrow of rats for in vivo and in vitro studies. In vitro functional assays and Western blotting were conducted to reveal the association between C-X-C chemokine receptor type 7 (CXCR7) expression and diabetic EPC dysfunction. To confirm the association between cellular CXCR7 levels and EPC function, CXCR7 expression in EPCs was upregulated and downregulated via lentiviral transduction and RNA interference, respectively. Western blotting was used to reveal the potential molecular mechanism by which the Stromal-Derived Factor-1 (SDF-1)/CXCR7 axis regulates EPC function. To elucidate the role of the SDF-1/CXCR7 axis in EPC-mediated endothelial regeneration, a carotid artery injury model was established in diabetic rats. After the model was established, saline-treated, diabetic, normal, or CXCR7-primed EPCs were injected via the tail vein. Results Diabetic EPC dysfunction was associated with decreased CXCR7 expression. Furthermore, EPC dysfunction was mimicked by knockdown of CXCR7 in normal EPCs. However, upregulating CXCR7 expression reversed the dysfunction of diabetic EPCs. The SDF-1/CXCR7 axis positively regulated EPC function by activating the AKT-associated Kelch-like ECH-associated protein 1 (keap-1)/nuclear factor erythroid 2-related factor 2 (Nrf2) axis, which was reversed by blockade of AKT and Nrf2. Transplantation of CXCR7-EPCs accelerated endothelial repair and attenuated neointimal hyperplasia in diabetes mellitus more significantly than transplantation of diabetic or normal EPCs. However, the therapeutic effect of CXCR7-EPC transplantation on endothelial regeneration was reversed by knockdown of Nrf2 expression. Conclusions Dysfunction of diabetic EPCs is associated with decreased CXCR7 expression. Furthermore, the SDF-1/CXCR7 axis positively regulates EPC function by activating the AKT/keap-1/Nrf2 axis. CXCR7-primed EPCs might be useful for endothelial regeneration in diabetes-associated vascular disease.
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Affiliation(s)
- Chunyu Jiang
- Department of Interventional Therapy, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University of Medicine, No. 639 Zhi Zao Ju Road, Shanghai, 200233, People's Republic of China
| | - Ruiting Li
- Department of Radiology, The Sixth People's Hospital, Affiliated to Shanghai Jiao Tong University, 600 Yi-Shan Road, Shanghai, 200233, People's Republic of China
| | - Chaoyang Xiu
- Department of Radiology, The Sixth People's Hospital, Affiliated to Shanghai Jiao Tong University, 600 Yi-Shan Road, Shanghai, 200233, People's Republic of China
| | - Xu Ma
- Department of Radiology, The Sixth People's Hospital, Affiliated to Shanghai Jiao Tong University, 600 Yi-Shan Road, Shanghai, 200233, People's Republic of China
| | - Hui Hu
- Department of Radiology, The Sixth People's Hospital, Affiliated to Shanghai Jiao Tong University, 600 Yi-Shan Road, Shanghai, 200233, People's Republic of China
| | - Liming Wei
- Department of Radiology, The Sixth People's Hospital, Affiliated to Shanghai Jiao Tong University, 600 Yi-Shan Road, Shanghai, 200233, People's Republic of China
| | - Yihan Tang
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, 225001, People's Republic of China
| | - Mingyang Tao
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, 225001, People's Republic of China
| | - Jungong Zhao
- Department of Radiology, The Sixth People's Hospital, Affiliated to Shanghai Jiao Tong University, 600 Yi-Shan Road, Shanghai, 200233, People's Republic of China.
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15
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Long F, Yang D, Wang J, Wang Q, Ni T, Wei G, Zhu Y, Liu X. SMYD3-PARP16 axis accelerates unfolded protein response and mediates neointima formation. Acta Pharm Sin B 2021; 11:1261-1273. [PMID: 34094832 PMCID: PMC8148056 DOI: 10.1016/j.apsb.2020.12.010] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 08/24/2020] [Accepted: 10/13/2020] [Indexed: 12/12/2022] Open
Abstract
Neointimal hyperplasia after vascular injury is a representative complication of restenosis. Endoplasmic reticulum (ER) stress-induced unfolded protein response (UPR) is involved in the pathogenesis of vascular intimal hyperplasia. PARP16, a member of the poly(ADP-ribose) polymerases family, is correlated with the nuclear envelope and the ER. Here, we found that PERK and IRE1α are ADP-ribosylated by PARP16, and this might promote proliferation and migration of smooth muscle cells (SMCs) during the platelet-derived growth factor (PDGF)-BB stimulating. Using chromatin immunoprecipitation coupled with deep sequencing (ChIP-seq) analysis, PARP16 was identified as a novel target gene for histone H3 lysine 4 (H3K4) methyltransferase SMYD3, and SMYD3 could bind to the promoter of Parp16 and increased H3K4me3 level to activate its host gene's transcription, which causes UPR activation and SMC proliferation. Moreover, knockdown either of PARP16 or SMYD3 impeded the ER stress and SMC proliferation. On the contrary, overexpression of PARP16 induced ER stress and SMC proliferation and migration. In vivo depletion of PARP16 attenuated injury-induced neointimal hyperplasia by mediating UPR activation and neointimal SMC proliferation. This study identified SMYD3-PARP16 is a novel signal axis in regulating UPR and neointimal hyperplasia, and targeting this axis has implications in preventing neointimal hyperplasia related diseases.
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Key Words
- ATF6, activating transcription factor 6
- BIP, immunoglobulin heavy-chain binding protein
- ChIP-seq, chromatin immunoprecipitation coupled with deep sequencing
- DAPI, 4′,6-diamidino-2-phenylindole
- ECM, extracellular matrix
- EGCG, epigallocatechin-3-gallate
- ER, endoplasmic reticulum
- Endoplasmic reticulum
- H3K4, histone H3 lysine 4
- IACUC, Institutional Animal Care and Use Committee
- IRE1, inositol-requiring enzyme 1
- MMP, matrix metal proteinase
- Neointimal hyperplasia
- PARP, poly(ADP-ribose) polymerases
- PARP16
- PCNA, proliferating cell nuclear antigen
- PDGF, platelet-derived growth factor
- PERK, protein kinase R (PKR)-like ER kinase
- SMCs, smooth muscle cells
- SMYD3
- SMYD3, SET and MYND domain containing 3
- UPR, unfolded protein response
- VCAM-1, vascular cell adhesion molecule-1
- VSMCs, vascular smooth muscle cells
- Vascular smooth muscle cell
- XBP-1, X-box binding protein-1
- p-PERK, phosphate-PKR-like ER kinase
- p-eIF2α, phosphate-eukaryotic initiation factor 2α
- siRNA, small interfering RNA
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16
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Liu Y, Liu P, Song Y, Li S, Shi Y, Quan K, Yu G, Li P, An Q, Zhu W. A heparin-rosuvastatin-loaded P(LLA-CL) nanofiber-covered stent inhibits inflammatory smooth-muscle cell viability to reduce in-stent stenosis and thrombosis. J Nanobiotechnology 2021; 19:123. [PMID: 33926468 PMCID: PMC8086342 DOI: 10.1186/s12951-021-00867-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Accepted: 04/20/2021] [Indexed: 11/10/2022] Open
Abstract
Background An endovascular covered-stent has unique advantages in treating complex intracranial aneurysms; however, in-stent stenosis and late thrombosis have become the main factors affecting the efficacy of covered-stent treatment. Smooth-muscle-cell phenotypic modulation plays an important role in late in-stent stenosis and thrombosis. Here, we determined the efficacy of using covered stents loaded with drugs to inhibit smooth-muscle-cell phenotypic modulation and potentially lower the incidence of long-term complications. Methods Nanofiber-covered stents were prepared using coaxial electrospinning, with the core solution prepared with 15% heparin and 20 µM rosuvastatin solution (400: 100 µL), and the shell solution prepared with 120 mg/mL hexafluoroisopropanol. We established a rabbit carotid-artery aneurysm model, which was treated with covered stents. Angiography and histology were performed to evaluate the therapeutic efficacy and incidence rate of in-stent stenosis and thrombosis. Phenotype, function, and inflammatory factors of smooth-muscle cells were studied to explore the mechanism of rosuvastatin action in smooth-muscle cells. Result Heparin–rosuvastatin-loaded nanofiber scaffold mats inhibited the proliferation of synthetic smooth-muscle cells, and the nanofiber-covered stent effectively treated aneurysms in the absence of notable in-stent stenosis. Additionally, in vitro experiments showed that rosuvastatin inhibited the smooth-muscle-cell phenotypic modulation of platelet-derived growth factor-BB induction and decreased synthetic smooth-muscle-cell viability, as well as secretion of inflammatory cytokines. Conclusion Rosuvastatin inhibited the abnormal proliferation of synthetic smooth-muscle cells, and heparin–rosuvastatin-loaded covered stents reduced the incidence of stenosis and late thrombosis, thereby improving the healing rates of stents used for aneurysm treatment. Graphic abstract ![]()
Supplementary Information The online version contains supplementary material available at 10.1186/s12951-021-00867-8.
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Affiliation(s)
- Yingjun Liu
- Department of Neurosurgery, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China.,Neurosurgical Institute of Fudan University, Shanghai, China.,Shanghai Clinical Medical Center of Neurosurgery, Shanghai, China.,Shanghai Key Laboratory of Brain Function and Restoration and Neural Regeneration, Shanghai, China
| | - Peixi Liu
- Department of Neurosurgery, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China.,Neurosurgical Institute of Fudan University, Shanghai, China.,Shanghai Clinical Medical Center of Neurosurgery, Shanghai, China.,Shanghai Key Laboratory of Brain Function and Restoration and Neural Regeneration, Shanghai, China
| | - Yaying Song
- Department of Neurology, Renji Hospital of Shanghai Jiao Tong University, Shanghai, China.,Neuroscience and Neuroengineering Research Center, Med-X Research Institute and School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Sichen Li
- Department of Neurosurgery, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China.,Neurosurgical Institute of Fudan University, Shanghai, China.,Shanghai Clinical Medical Center of Neurosurgery, Shanghai, China.,Shanghai Key Laboratory of Brain Function and Restoration and Neural Regeneration, Shanghai, China
| | - Yuan Shi
- Department of Neurosurgery, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China.,Neurosurgical Institute of Fudan University, Shanghai, China.,Shanghai Clinical Medical Center of Neurosurgery, Shanghai, China.,Shanghai Key Laboratory of Brain Function and Restoration and Neural Regeneration, Shanghai, China
| | - Kai Quan
- Department of Neurosurgery, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China.,Neurosurgical Institute of Fudan University, Shanghai, China.,Shanghai Clinical Medical Center of Neurosurgery, Shanghai, China.,Shanghai Key Laboratory of Brain Function and Restoration and Neural Regeneration, Shanghai, China
| | - Guo Yu
- Department of Neurosurgery, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China.,Neurosurgical Institute of Fudan University, Shanghai, China.,Shanghai Clinical Medical Center of Neurosurgery, Shanghai, China.,Shanghai Key Laboratory of Brain Function and Restoration and Neural Regeneration, Shanghai, China
| | - Peiliang Li
- Department of Neurosurgery, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China. .,Neurosurgical Institute of Fudan University, Shanghai, China. .,Shanghai Clinical Medical Center of Neurosurgery, Shanghai, China. .,Shanghai Key Laboratory of Brain Function and Restoration and Neural Regeneration, Shanghai, China.
| | - Qingzhu An
- Department of Neurosurgery, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China. .,Neurosurgical Institute of Fudan University, Shanghai, China. .,Shanghai Clinical Medical Center of Neurosurgery, Shanghai, China. .,Shanghai Key Laboratory of Brain Function and Restoration and Neural Regeneration, Shanghai, China.
| | - Wei Zhu
- Department of Neurosurgery, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China. .,Neurosurgical Institute of Fudan University, Shanghai, China. .,Shanghai Clinical Medical Center of Neurosurgery, Shanghai, China. .,Shanghai Key Laboratory of Brain Function and Restoration and Neural Regeneration, Shanghai, China.
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17
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Wang S, Zheng B, Zhao H, Li Y, Zhang X, Wen J. Downregulation of lncRNA MIR181A2HG by high glucose impairs vascular endothelial cell proliferation and migration through the dysregulation of the miRNAs/AKT2 axis. Int J Mol Med 2021; 47:35. [PMID: 33537821 PMCID: PMC7891834 DOI: 10.3892/ijmm.2021.4868] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Accepted: 01/04/2021] [Indexed: 01/06/2023] Open
Abstract
Endothelial dysfunction and diabetic vascular disease induced by chronic hyperglycemia involve complex interactions among high glucose, long non-coding RNAs (lncRNAs), microRNAs (miRNAs or miRs) and the Ser/Thr kinase AKT. However, the molecular mechanisms under-lying the regulatory crosstalk between these have not yet been completely elucidated. Thus, the present study aimed to explore the molecular mechanisms whereby high glucose (HG)-induced lncRNA MIR181A2HG modulates human umbilical vein endothelial cell (HUVEC) proliferation and migration by regulating AKT2 expression. The persistent exposure of HUVECs to HG resulted in MIR181A2HG down-regulation and thus reduced its ability to sponge miR-6832-5p, miR-6842-5p and miR-8056, subsequently leading to an increase in miR-6832-5p, miR-6842-5p and miR-8056 levels. Mechanistically, miR-6832-5p, miR-6842-5p and miR-8056 were found to target the 3′UTR of AKT2 mRNA in HUVECs, and the increase in their levels led to a decreased expression of AKT2. Thus, this also led to the suppression of HUVEC proliferation and migration, and the formation of capillary-like structures. Moreover, the suppression of HUVEC proliferation and migration induced by MIR181A2HG downregulation was accompanied by changes in glucose metabolism. On the whole, the present study demonstrates that the downregulation of lncRNA MIR181A2HG by HG impairs HUVEC proliferation and migration by dysregulating the miRNA/AKT2 axis. The MIR181A2HG/miRNA/AKT2 regulatory axis may thus be a potential therapeutic target for HG-induced endothelial dysfunction.
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Affiliation(s)
- Shaohua Wang
- Department of Biochemistry and Molecular Biology, The Key Laboratory of Neural and Vascular Biology, Ministry of Education of China, Hebei Medical University, Shijiazhuang, Hebei 050017, P.R. China
| | - Bin Zheng
- Department of Biochemistry and Molecular Biology, The Key Laboratory of Neural and Vascular Biology, Ministry of Education of China, Hebei Medical University, Shijiazhuang, Hebei 050017, P.R. China
| | - Hongye Zhao
- Department of Biochemistry and Molecular Biology, The Key Laboratory of Neural and Vascular Biology, Ministry of Education of China, Hebei Medical University, Shijiazhuang, Hebei 050017, P.R. China
| | - Yongjun Li
- Department of Clinical Laboratorial Examination, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei 050000, P.R. Chin
| | - Xinhua Zhang
- Department of Biochemistry and Molecular Biology, The Key Laboratory of Neural and Vascular Biology, Ministry of Education of China, Hebei Medical University, Shijiazhuang, Hebei 050017, P.R. China
| | - Jinkun Wen
- Department of Biochemistry and Molecular Biology, The Key Laboratory of Neural and Vascular Biology, Ministry of Education of China, Hebei Medical University, Shijiazhuang, Hebei 050017, P.R. China
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18
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Baba O, Huang LH, Elvington A, Szpakowska M, Sultan D, Heo GS, Zhang X, Luehmann H, Detering L, Chevigné A, Liu Y, Randolph GJ. CXCR4-Binding Positron Emission Tomography Tracers Link Monocyte Recruitment and Endothelial Injury in Murine Atherosclerosis. Arterioscler Thromb Vasc Biol 2021; 41:822-836. [PMID: 33327748 PMCID: PMC8105279 DOI: 10.1161/atvbaha.120.315053] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
OBJECTIVE vMIP-II (viral macrophage inflammatory protein 2)/vCCL2 (viral chemotactic cytokine ligand 2) binds to multiple chemokine receptors, and vMIP-II-based positron emission tomography tracer (64Cu-DOTA-vMIP-II: vMIP-II tracer) accumulates at atherosclerotic lesions in mice. Given that it would be expected to react with multiple chemokine receptors on monocytes and macrophages, we wondered if its accumulation in atherosclerosis lesion-bearing mice might correlate with overall macrophage burden or, alternatively, the pace of monocyte recruitment. Approach and Results: We employed a mouse model of atherosclerosis regression involving adenoassociated virus 8 vector encoding murine Apoe (AAV-mApoE) treatment of Apoe-/- mice where the pace of monocyte recruitment slows before macrophage burden subsequently declines. Accumulation of 64Cu-DOTA-vMIP-II at Apoe-/- plaque sites was strong but declined with AAV-mApoE-induced decline in monocyte recruitment, before macrophage burden reduced. Monocyte depletion indicated that monocytes and macrophages themselves were not the only target of the 64Cu-DOTA-vMIP-II tracer. Using fluorescence-tagged vMIP-II tracer, competitive receptor blocking with CXCR4 antagonists, endothelial-specific Cre-mediated deletion of CXCR4, CXCR4-specific tracer 64Cu-DOTA-FC131, and CXCR4 staining during disease progression and regression, we show endothelial cell expression of CXCR4 is a key target of 64Cu-DOTA-vMIP-II imaging. Expression of CXCR4 was low in nonplaque areas but strongly detected on endothelium of progressing plaques, especially on proliferating endothelium, where vascular permeability was increased and monocyte recruitment was the strongest. CONCLUSIONS Endothelial injury status of plaques is marked by CXCR4 expression and this injury correlates with the tendency of such plaques to recruit monocytes. Furthermore, our findings suggest positron emission tomography tracers that mark CXCR4 can be used translationally to monitor the state of plaque injury and monocyte recruitment.
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MESH Headings
- Animals
- Aorta, Thoracic/diagnostic imaging
- Aorta, Thoracic/immunology
- Aorta, Thoracic/metabolism
- Aorta, Thoracic/pathology
- Atherosclerosis/diagnostic imaging
- Atherosclerosis/immunology
- Atherosclerosis/metabolism
- Atherosclerosis/pathology
- Biomarkers/metabolism
- Cell Line
- Chemokines/administration & dosage
- Chemokines/pharmacokinetics
- Disease Models, Animal
- Endothelial Cells/immunology
- Endothelial Cells/metabolism
- Endothelial Cells/pathology
- Endothelium, Vascular/diagnostic imaging
- Endothelium, Vascular/immunology
- Endothelium, Vascular/metabolism
- Endothelium, Vascular/pathology
- Injections, Intravenous
- Male
- Mice, Inbred C57BL
- Mice, Knockout
- Mice, Knockout, ApoE
- Molecular Imaging
- Monocytes/immunology
- Monocytes/metabolism
- Monocytes/pathology
- Organometallic Compounds/administration & dosage
- Organometallic Compounds/pharmacokinetics
- Plaque, Atherosclerotic
- Positron-Emission Tomography
- Predictive Value of Tests
- Radiopharmaceuticals/administration & dosage
- Radiopharmaceuticals/pharmacokinetics
- Receptors, CXCR4/genetics
- Receptors, CXCR4/metabolism
- Mice
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Affiliation(s)
- Osamu Baba
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis
| | - Li-Hao Huang
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis
| | - Andrew Elvington
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis
| | - Martyna Szpakowska
- Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg
| | - Deborah Sultan
- Department of Radiology, Washington University School of Medicine, St. Louis
| | - Gyu Seong Heo
- Department of Radiology, Washington University School of Medicine, St. Louis
| | - Xiaohui Zhang
- Department of Radiology, Washington University School of Medicine, St. Louis
| | - Hannah Luehmann
- Department of Radiology, Washington University School of Medicine, St. Louis
| | - Lisa Detering
- Department of Radiology, Washington University School of Medicine, St. Louis
| | - Andy Chevigné
- Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg
| | - Yongjian Liu
- Department of Radiology, Washington University School of Medicine, St. Louis
| | - Gwendalyn J. Randolph
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis
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19
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Wang Y, Xu Y, Yan S, Cao K, Zeng X, Zhou Y, Liu Z, Yang Q, Pan Y, Wang X, Boison D, Su Y, Jiang X, Patel VS, Fulton D, Weintraub NL, Huo Y. Adenosine kinase is critical for neointima formation after vascular injury by inducing aberrant DNA hypermethylation. Cardiovasc Res 2021; 117:561-575. [PMID: 32065618 PMCID: PMC7820850 DOI: 10.1093/cvr/cvaa040] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2019] [Revised: 01/20/2020] [Accepted: 02/12/2020] [Indexed: 12/21/2022] Open
Abstract
AIMS Adenosine receptors and extracellular adenosine have been demonstrated to modulate vascular smooth muscle cell (VSMC) proliferation and neointima formation. Adenosine kinase (ADK) is a major enzyme regulating intracellular adenosine levels but is function in VSMC remains unclear. Here, we investigated the role of ADK in vascular injury-induced smooth muscle proliferation and delineated the mechanisms underlying its action. METHODS AND RESULTS We found that ADK expression was higher in the neointima of injured vessels and in platelet-derived growth factor-treated VSMCs. Genetic and pharmacological inhibition of ADK was enough to attenuate arterial injury-induced neointima formation due to inhibition of VSMC proliferation. Mechanistically, using infinium methylation assays and bisulfite sequencing, we showed that ADK metabolized the intracellular adenosine and potentiated the transmethylation pathway, then induced the aberrant DNA hypermethylation. Pharmacological inhibition of aberrant DNA hypermethylation increased KLF4 expression and suppressed VSMC proliferation as well as the neointima formation. Importantly, in human femoral arteries, we observed increased ADK expression and DNA hypermethylation as well as decreased KLF4 expression in neointimal VSMCs of stenotic vessels suggesting that our findings in mice are relevant for human disease and may hold translational significance. CONCLUSION Our study unravels a novel mechanism by which ADK promotes VSMC proliferation via inducing aberrant DNA hypermethylation, thereby down-regulating KLF4 expression and promoting neointima formation. These findings advance the possibility of targeting ADK as an epigenetic modulator to combat vascular injury.
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Affiliation(s)
- Yong Wang
- College of Basic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA, USA
| | - Yiming Xu
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA, USA
- The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan People’s Hospital; State Key Lab of Respiratory Disease; School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Siyuan Yan
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Science, Beijing, China
| | - Kaixiang Cao
- The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan People’s Hospital; State Key Lab of Respiratory Disease; School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Xianqiu Zeng
- Key Laboratory of Chemical Genomics, Peking University Shenzhen Graduate School, Shenzhen, Guangdong, China
| | - Yaqi Zhou
- Key Laboratory of Chemical Genomics, Peking University Shenzhen Graduate School, Shenzhen, Guangdong, China
| | - Zhiping Liu
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA, USA
- Key Laboratory of Chemical Genomics, Peking University Shenzhen Graduate School, Shenzhen, Guangdong, China
| | - Qiuhua Yang
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA, USA
- Key Laboratory of Chemical Genomics, Peking University Shenzhen Graduate School, Shenzhen, Guangdong, China
| | - Yue Pan
- Georgia Prevention Institute, Augusta University, Augusta, GA, USA
| | - Xiaoling Wang
- Georgia Prevention Institute, Augusta University, Augusta, GA, USA
| | - Detlev Boison
- Robert S. Dow Neurobiology Laboratories, Legacy Research Institute, Portland, OR, USA
| | - Yunchao Su
- Department of Pharmacology and Toxicology, Medical College of Georgia, Augusta University, Augusta, GA, USA
| | - Xuejun Jiang
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Science, Beijing, China
| | - Vijay S Patel
- Department of Anesthesiology and Perioperative Medicine, Augusta University, Augusta, GA, USA
| | - David Fulton
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA, USA
| | - Neal L Weintraub
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA, USA
| | - Yuqing Huo
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA, USA
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20
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Hayashi SI, Rakugi H, Morishita R. Insight into the Role of Angiopoietins in Ageing-Associated Diseases. Cells 2020; 9:E2636. [PMID: 33302426 PMCID: PMC7762563 DOI: 10.3390/cells9122636] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2020] [Revised: 12/05/2020] [Accepted: 12/07/2020] [Indexed: 12/17/2022] Open
Abstract
Angiopoietin (Ang) and its receptor, TIE signaling, contribute to the development and maturation of embryonic vasculature as well as vascular remodeling and permeability in adult tissues. Targeting both this signaling pathway and the major pathway with vascular endothelial growth factor (VEGF) is expected to permit clinical applications, especially in antiangiogenic therapies against tumors. Several drugs targeting the Ang-TIE signaling pathway in cancer patients are under clinical development. Similar to how cancer increases with age, unsuitable angiogenesis or endothelial dysfunction is often seen in other ageing-associated diseases (AADs) such as atherosclerosis, Alzheimer's disease, type 2 diabetes, chronic kidney disease and cardiovascular diseases. Thus, the Ang-TIE pathway is a possible molecular target for AAD therapy. In this review, we focus on the potential role of the Ang-TIE signaling pathway in AADs, especially non-cancer-related AADs. We also suggest translational insights and future clinical applications of this pathway in those AADs.
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Affiliation(s)
- Shin-ichiro Hayashi
- Department of Clinical Gene Therapy, Center of Medical Innovation and Translational Research, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan
| | - Hiromi Rakugi
- Department of Geriatric and General Medicine, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan;
| | - Ryuichi Morishita
- Department of Clinical Gene Therapy, Center of Medical Innovation and Translational Research, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan
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21
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Deng J, Ni Z, Gu W, Chen Q, Nowak WN, Chen T, Issa Bhaloo S, Zhang Z, Hu Y, Zhou B, Zhang L, Xu Q. Single-cell gene profiling and lineage tracing analyses revealed novel mechanisms of endothelial repair by progenitors. Cell Mol Life Sci 2020; 77:5299-5320. [PMID: 32166394 PMCID: PMC11104897 DOI: 10.1007/s00018-020-03480-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Revised: 01/18/2020] [Accepted: 02/07/2020] [Indexed: 12/20/2022]
Abstract
Stem/progenitor cells (SPCs) have been implicated to participate in vascular repair. However, the exact role of SPCs in endothelial repair of large vessels still remains controversial. This study aimed to delineate the cellular heterogeneity and possible functional role of endogenous vascular SPCs in large vessels. Using single-cell RNA-sequencing (scRNA-seq) and genetic lineage tracing mouse models, we uncovered the cellular heterogeneity of SPCs, i.e., c-Kit+ cells in the mouse aorta, and found that endogenous c-Kit+ cells acquire endothelial cell fate in the aorta under both physiological and pathological conditions. While c-Kit+ cells contribute to aortic endothelial turnover in the atheroprone regions during homeostasis, recipient c-Kit+ cells of nonbone marrow source replace both luminal and microvessel endothelial cells in transplant arteriosclerosis. Single-cell pseudotime analysis of scRNA-seq data and in vitro cell experiments suggest that vascular SPCs display endothelial differentiation potential and undergo metabolic reprogramming during cell differentiation, in which AKT/mTOR-dependent glycolysis is critical for endothelial gene expression. These findings demonstrate a critical role for c-Kit lineage cells in aortic endothelial turnover and replacement, and may provide insights into therapeutic strategies for vascular diseases.
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Affiliation(s)
- Jiacheng Deng
- Department of Cardiology, The First Affiliated Hospital, School of Medicine, Zhejiang University, 79 Qingchun Road, Hangzhou, 310003, Zhejiang, China
- School of Cardiovascular Medicine and Science, BHF Centre, King's College London, 125 Coldharbour Lane, London, SE5 9NU, UK
| | - Zhichao Ni
- School of Cardiovascular Medicine and Science, BHF Centre, King's College London, 125 Coldharbour Lane, London, SE5 9NU, UK
| | - Wenduo Gu
- School of Cardiovascular Medicine and Science, BHF Centre, King's College London, 125 Coldharbour Lane, London, SE5 9NU, UK
| | - Qishan Chen
- Department of Cardiology, The First Affiliated Hospital, School of Medicine, Zhejiang University, 79 Qingchun Road, Hangzhou, 310003, Zhejiang, China
| | - Witold Norbert Nowak
- School of Cardiovascular Medicine and Science, BHF Centre, King's College London, 125 Coldharbour Lane, London, SE5 9NU, UK
| | - Ting Chen
- Department of Cardiology, The First Affiliated Hospital, School of Medicine, Zhejiang University, 79 Qingchun Road, Hangzhou, 310003, Zhejiang, China
| | - Shirin Issa Bhaloo
- School of Cardiovascular Medicine and Science, BHF Centre, King's College London, 125 Coldharbour Lane, London, SE5 9NU, UK
| | - Zhongyi Zhang
- School of Cardiovascular Medicine and Science, BHF Centre, King's College London, 125 Coldharbour Lane, London, SE5 9NU, UK
| | - Yanhua Hu
- School of Cardiovascular Medicine and Science, BHF Centre, King's College London, 125 Coldharbour Lane, London, SE5 9NU, UK
| | - Bin Zhou
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, University of Chinese Academy of Sciences, Chinese Academic of Sciences, Shanghai, 200031, China
| | - Li Zhang
- Department of Cardiology, The First Affiliated Hospital, School of Medicine, Zhejiang University, 79 Qingchun Road, Hangzhou, 310003, Zhejiang, China.
| | - Qingbo Xu
- Department of Cardiology, The First Affiliated Hospital, School of Medicine, Zhejiang University, 79 Qingchun Road, Hangzhou, 310003, Zhejiang, China.
- School of Cardiovascular Medicine and Science, BHF Centre, King's College London, 125 Coldharbour Lane, London, SE5 9NU, UK.
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22
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Rai P, Taylor R, Bittar MN. Long-term survival in patients who had CABG with or without prior coronary artery stenting. Open Heart 2020; 7:openhrt-2019-001160. [PMID: 33168639 PMCID: PMC7654116 DOI: 10.1136/openhrt-2019-001160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Revised: 04/29/2020] [Accepted: 06/01/2020] [Indexed: 11/26/2022] Open
Abstract
Objective To conduct a large-scale, single-centre retrospective cohort study to understand the impact of prior percutaneous coronary intervention (PCI) on long-term survival of patients who then undergo coronary artery bypass graft (CABG). Methods Between 1999 and 2017, a total of 11 332 patients underwent CABG at a hospital in the UK. The patients were stratified into those who received PCI (n=1090) or no PCI (n=10 242) prior to CABG. A total of 1058 patients from each group were matched using propensity score matching. Kaplan-Meier estimates were used to assess risk-adjusted survival in patients with prior PCI. Cox proportional hazards (CoxPH) model was then used to assess the effect of prior PCI and other variables in patients undergoing CABG. Results The immediate postoperative outcome showed no difference in number of grafts per patients, blood transfusion, hospital stay or 30 days mortality between the groups. There was no significant difference in 5 years (90.8% vs 87.9), 10-year (76.5% vs 74.6%) and 15-year (64.4% vs 64.7%) survival between the non-PCI versus PCI groups. The Cox proportional hazards model further supports the null hypothesis as the PCI variable was found to be non-significant (CoxPH=1.03, p=0.75, CI=0.87–1.22) implying there was no difference in hazard of death for CABG patients with or without previous PCI. However, the model did yield information on the covariates that do affect the hazard of death. Conclusion There is no difference in 5-year, 10-year and 15-year survival between patients undergoing CABG with or without prior PCI. However, certain patient, preoperative and intraoperative risk factors were identified with high hazard of death which needs to be investigated further.
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Affiliation(s)
- Pratik Rai
- Department of Cardiothoracic Surgery, Lancanshire Cardiac Center, Blackpool Victoria Hospital, Blackpool, UK
| | - Rebecca Taylor
- Department of Cardiothoracic Surgery, Lancanshire Cardiac Center, Blackpool Victoria Hospital, Blackpool, UK
| | - Mohamad Nidal Bittar
- Department of Cardiothoracic Surgery, Lancanshire Cardiac Center, Blackpool Victoria Hospital, Blackpool, UK
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23
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miRNA-126-3p carried by human umbilical cord mesenchymal stem cell enhances endothelial function through exosome-mediated mechanisms in vitro and attenuates vein graft neointimal formation in vivo. Stem Cell Res Ther 2020; 11:464. [PMID: 33138861 PMCID: PMC7607661 DOI: 10.1186/s13287-020-01978-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Accepted: 10/16/2020] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND The aim of this study was to determine whether the combination of MSC implantation with miRNA-126-3p overexpression would further improve the surgical results after vein grafting. METHODS human umbilical cord MSCs (hucMSCs) and human umbilical vein endothelial cells (HUVECs) were isolated from human umbilical cords and characterized by a series of experiments. Lentivirus vector encoding miRNA-126-3p was transfected into hucMSCs and verified by PCR. We analyzed the miRNA-126-3p-hucMSC function in vascular endothelial cells by using a series of co-culture experiments. miRNA-126-3p-hucMSCs-exosomes were separated from cell culture supernatants and identified by WB and TEM. We validated the role of miRNA-126-3p-hucMSCs-exosomes on HUVECs proliferative and migratory and angiogenic activities by using a series of function experiments. We further performed co-culture experiments to detect downstream target genes and signaling pathways of miRNA-126-3p-hucMSCs in HUVECs. We established a rat vein grafting model, CM-Dil-labeled hucMSCs were injected intravenously into rats, and the transplanted cells homing to the vein grafts were detected by fluorescent microscopy. We performed historical and immunohistochemical experiments to exam miRNA-126-3p-hucMSC transplantation on vein graft neointimal formation and reendothelialization in vitro. RESULTS We successfully isolated and identified primary hucMSCs and HUVECs. Primary hucMSCs were transfected with lentiviral vectors carrying miRNA-126-3p at a MOI 75. Co-culture studies indicated that overexpression of miRNA-126-3p in hucMSCs enhanced HUVECs proliferation, migration, and tube formation in vivo. We successfully separated hucMSCs-exosomes and found that miRNA-126-3p-hucMSCs-exosomes can strengthen the proliferative, migratory, and tube formation capacities of HUVECs. Further PCR and WB analysis indicated that, SPRED-1/PIK3R2/AKT/ERK1/2 pathways are involved in this process. In the rat vein arterialization model, reendothelialization analysis showed that transplantation with hucMSCs modified with miRNA-126-3p had a higher reendothelialization of the vein grafts. The subsequent historical and immunohistochemical examination revealed that delivery with miRNA-126-3p overexpressed hucMSCs significantly reduced vein graft intimal hyperplasia in rats. CONCLUSION These results suggest hucMSC-based miRNA-126-3p gene therapy may be a novel option for the treatment of vein graft disease after CABG.
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24
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Yang F, He H, Xu L, Jin L, Guo G, Wang Y. Inorganic-polymerization crosslinked tissue-siloxane hybrid as potential biomaterial for bioprosthetic heart valves. J Biomed Mater Res A 2020; 109:754-765. [PMID: 32681740 DOI: 10.1002/jbm.a.37061] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 06/21/2020] [Accepted: 07/01/2020] [Indexed: 12/17/2022]
Abstract
Bioprosthetic heart valve (BHV) replacement is increasingly used for treating valve-related diseases worldwide but the current commercially used BHVs treated with glutaraldehyde (Glut) often failed within 12-15 years due to degradation, thrombosis, inferior biocompatibility, and calcification. Herein, 3-glycidyloxypropyl trimethoxysilane (GPTMS) was used to crosslink porcine pericardium (PP) at the concentration (vol/vol) of 0.25%, 1%, 2%, and 4% and their performance for potential application in BHVs was evaluated. The crosslinking mechanism mainly involved the ring-opening of epoxide by amine attack and silanol poly-condensation. The stability of collagen in higher concentration (1%, 2%, and 4%) GPTMS crosslinked PPs (GPTMS-PPs) was clearly increased. GPTMS-PPs showed no cytotoxicity and supported the growth of endothelial cells while Glut-PP did not. GPTMS-PPs were less prothrombotic than Glut-PP. GPTMS-PP crosslinked at 1% concentration showed comparable mechanical properties to Glut-PP while had better anti-tearing performance. The subcutaneous implantation in rat for 30 days showed that GPTMS crosslinking was able to effectively inhibit the calcification of BHV.
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Affiliation(s)
- Fan Yang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, China
| | - Haiyang He
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, China
| | - Liangpeng Xu
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, China
| | - Linhe Jin
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, China
| | - Gaoyang Guo
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, China
| | - Yunbing Wang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, China
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25
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Early modulation of macrophage ROS-PPARγ-NF-κB signalling by sonodynamic therapy attenuates neointimal hyperplasia in rabbits. Sci Rep 2020; 10:11638. [PMID: 32669704 PMCID: PMC7363872 DOI: 10.1038/s41598-020-68543-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Accepted: 05/14/2020] [Indexed: 11/08/2022] Open
Abstract
Disruption of re-endothelialization and haemodynamic balance remains a critical side effect of drug-eluting stents (DES) for preventing intimal hyperplasia. Previously, we found that 5-aminolevulinic acid-mediated sonodynamic therapy (ALA-SDT) suppressed macrophage-mediated inflammation in atherosclerotic plaques. However, the effects on intimal hyperplasia and re-endothelialization remain unknown. In this study, 56 rabbits were randomly assigned to control, ultrasound, ALA and ALA-SDT groups, and each group was divided into two subgroups (n = 7) on day 3 after right femoral artery balloon denudation combined with a hypercholesterolemic diet. Histopathological analysis revealed that ALA-SDT enhanced macrophage apoptosis and ameliorated inflammation from day 1. ALA-SDT inhibited neointima formation without affecting re-endothelialization, increased blood perfusion, decreased the content of macrophages, proliferating smooth muscle cells (SMCs) and collagen but increased elastin by day 28. In vitro, ALA-SDT induced macrophage apoptosis and reduced TNF-α, IL-6 and IL-1β via the ROS-PPARγ-NF-κB signalling pathway, which indirectly inhibited human umbilical artery smooth muscle cell (HUASMC) proliferation, migration and IL-6 production. ALA-SDT effectively inhibits intimal hyperplasia without affecting re-endothelialization. Hence, its clinical application combined with bare-metal stent (BMS) implantation presents a potential strategy to decrease bleeding risk caused by prolonged dual-antiplatelet regimen after DES deployment.
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26
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Wu KK, Kuo CC, Yet SF, Lee CM, Liou JY. 5-methoxytryptophan: an arsenal against vascular injury and inflammation. J Biomed Sci 2020; 27:79. [PMID: 32635910 PMCID: PMC7341587 DOI: 10.1186/s12929-020-00671-w] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Accepted: 07/01/2020] [Indexed: 12/21/2022] Open
Abstract
5-methoxytryptophan (5-MTP) is an endothelial factor with anti-inflammatory properties. It is synthesized from L-tryptophan via two enzymatic steps: tryptophan hydroxylase-1 (TPH-1) and hydroxyindole O-methyltransferase. Lipopolysaccharide (LPS) and pro-inflammatory cytokines suppress endothelial 5-MTP production by inhibiting TPH-1 expression. 5-MTP protects endothelial barrier function and promotes endothelial repair, while it blocks vascular smooth muscle cell migration and proliferation by inhibiting p38 MAPK activation. 5-MTP controls macrophage transmigration and activation by inhibiting p38 MAPK and NF-κB activation. 5-MTP administration attenuates arterial intimal hyperplasia, defends against systemic inflammation and prevents renal fibrosis in relevant murine models. Serum 5-MTP level is depressed in human sepsis as well as in mice with sepsis-like disorder. It is reduced in chronic kidney disease and acute myocardial infarction in humans. The reported data suggest that serum 5-MTP may be a theranostic biomarker. In summary, 5-MTP represents a new class of tryptophan metabolite which defends against inflammation and inflammation-mediated tissue damage and fibrosis. It may be a valuable lead compound for developing new drugs to treat complex human inflammatory disorders.
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Affiliation(s)
- Kenneth K Wu
- Institute of Cellular and System Medicine, National Health Research Institutes, 35 Keyan Road, Zhunan Town, Miaoli County, 35053, Taiwan. .,College of Life Sciences, National Tsing-Hua University, Hsinchu, Taiwan. .,School of Medicine, China Medical University, Taichung, Taiwan. .,College of Medicine, National Taiwan University, Taipei, Taiwan.
| | - Cheng-Chin Kuo
- Institute of Cellular and System Medicine, National Health Research Institutes, 35 Keyan Road, Zhunan Town, Miaoli County, 35053, Taiwan
| | - Shaw-Fang Yet
- Institute of Cellular and System Medicine, National Health Research Institutes, 35 Keyan Road, Zhunan Town, Miaoli County, 35053, Taiwan
| | - Chii-Ming Lee
- College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Jun-Yang Liou
- Institute of Cellular and System Medicine, National Health Research Institutes, 35 Keyan Road, Zhunan Town, Miaoli County, 35053, Taiwan
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27
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Liu Z, Wu C, Zou X, Shen W, Yang J, Zhang X, Hu X, Wang H, Liao Y, Jing T. Exosomes derived from mesenchymal stem cells inhibit neointimal hyperplasia by activating the Erk1/2 signalling pathway in rats. Stem Cell Res Ther 2020; 11:220. [PMID: 32513275 PMCID: PMC7278178 DOI: 10.1186/s13287-020-01676-w] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Revised: 03/17/2020] [Accepted: 04/13/2020] [Indexed: 01/29/2023] Open
Abstract
Background Restenosis is a serious problem in patients who have undergone percutaneous transluminal angioplasty. Endothelial injury resulting from surgery can lead to endothelial dysfunction and neointimal formation by inducing aberrant proliferation and migration of vascular smooth muscle cells. Exosomes secreted by mesenchymal stem cells have been a hot topic in cardioprotective research. However, to date, exosomes derived from mesenchymal stem cells (MSC-Exo) have rarely been reported in association with restenosis after artery injury. The aim of this study was to investigate whether MSC-Exo inhibit neointimal hyperplasia in a rat model of carotid artery balloon-induced injury and, if so, to explore the underlying mechanisms. Methods Characterization of MSC-Exo immunophenotypes was performed by electron microscopy, nanoparticle tracking analysis and western blot assays. To investigate whether MSC-Exo inhibited neointimal hyperplasia, rats were intravenously injected with normal saline or MSC-Exo after carotid artery balloon-induced injury. Haematoxylin-eosin staining was performed to examine the intimal and media areas. Evans blue dye staining was performed to examine re-endothelialization. Moreover, immunohistochemistry and immunofluorescence were performed to examine the expression of CD31, vWF and α-SMA. To further investigate the involvement of MSC-Exo-induced re-endothelialization, the underlying mechanisms were studied by cell counting kit-8, cell scratch, immunofluorescence and western blot assays. Results Our data showed that MSC-Exo were ingested by endothelial cells and that systemic injection of MSC-Exo suppressed neointimal hyperplasia after artery injury. The Evans blue staining results showed that MSC-Exo could accelerate re-endothelialization compared to the saline group. The immunofluorescence and immunohistochemistry results showed that MSC-Exo upregulated the expression of CD31 and vWF but downregulated the expression of α-SMA. Furthermore, MSC-Exo mechanistically facilitated proliferation and migration by activating the Erk1/2 signalling pathway. The western blot results showed that MSC-Exo upregulated the expression of PCNA, Cyclin D1, Vimentin, MMP2 and MMP9 compared to that in the control group. Interestingly, an Erk1/2 inhibitor reversed the expression of the above proteins. Conclusion Our data suggest that MSC-Exo can inhibit neointimal hyperplasia after carotid artery injury by accelerating re-endothelialization, which is accompanied by activation of the Erk1/2 signalling pathway. Importantly, our study provides a novel cell-free approach for the treatment of restenosis diseases after intervention.
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Affiliation(s)
- Zhihui Liu
- Department of Cardiology, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing, 400038, China.,State Key Laboratory of Silkworm Genome Biology, The Institute of Sericulture and Systems Biology, Southwest University, Chongqing, China
| | - Chao Wu
- State Key Laboratory of Silkworm Genome Biology, The Institute of Sericulture and Systems Biology, Southwest University, Chongqing, China.,Department of Thoracic Surgery, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Xinliang Zou
- Department of Cardiology, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing, 400038, China
| | - Weiming Shen
- Laboratory of Integrative Medicine, School of Basic Medical Sciences, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Jiacai Yang
- The Institute of Burn Research, South-West Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Xiaorong Zhang
- The Institute of Burn Research, South-West Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Xiaohong Hu
- The Institute of Burn Research, South-West Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Haidong Wang
- Department of Thoracic Surgery, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Yi Liao
- Department of Thoracic Surgery, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Tao Jing
- Department of Cardiology, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing, 400038, China.
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28
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Qu Q, Pang Y, Zhang C, Liu L, Bi Y. Exosomes derived from human umbilical cord mesenchymal stem cells inhibit vein graft intimal hyperplasia and accelerate reendothelialization by enhancing endothelial function. Stem Cell Res Ther 2020; 11:133. [PMID: 32293542 PMCID: PMC7092460 DOI: 10.1186/s13287-020-01639-1] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 01/05/2020] [Accepted: 03/10/2020] [Indexed: 02/07/2023] Open
Abstract
Background In our previous research, we found that mesenchymal stem cell (MSC) transplantation therapy can inhibit intimal hyperplasia and enhance endothelial function in arterialized vein grafts in rats. However, whether MSC-derived exosomes (MSC-exosomes) can reduce neointimal formation and its possible mechanism is still unclear. Methods The primary human umbilical cord MSCs (hucMSCs) and human umbilical vein endothelial cells (HUVECs) were isolated and characterized by flow cytometry and immunofluorescence. The exosomes derived from hucMSCs (hucMSC-exosomes) were identified by transmission electron microscopy and western blots. hucMSC-exosomes were intravenously injected into a rat model of vein grafting, and its effect on vein grafts reendothelialization and intimal hyperplasia was assessed by physical, histological, immunohistochemistry, and immunofluorescence examinations. The effects of hucMSC-exosomes on endothelial cells were evaluated by integrated experiment, EdU staining, scratch assay, and Transwell assay. The expression levels of key gene and pathways associated with the biological activity of vascular endothelial cells were evaluated following the stimulation of hucMSC-exosomes. Results We successfully isolated and characterized primary hucMSCs and hucMSC-exosomes and primary HUVECs. We verified that the systemic administration of hucMSC-exosomes accelerates reendothelialization and decreases intimal hyperplasia of autologous vein graft in a rat model. We also identified that hucMSC-exosomes can be uptaken by endothelial cells to stimulate cell proliferative and migratory activity in vitro. Furthermore, we detected that vascular endothelial growth factor (VEGF) plays an important part in hucMSC-exosome-mediated proliferation and migration in HUVECs. In addition, we also provided evidence that the signalling pathways of PI3K/AKT and MAPK/ERK1/2 take part in hucMSC-exosome-induced VEGF regulation. Conclusion Our data suggest that hucMSC-exosomes exert a vasculoprotective role in the setting of vein graft disease, which may provide a new clue to protect against vein graft failure in the future.
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Affiliation(s)
- Qingxi Qu
- Department of Obstetrics and Gynecology, Qilu Hospital of Shandong University, Jinan, 250012, Shandong, People's Republic of China
| | - Yingxin Pang
- Department of Obstetrics and Gynecology, Qilu Hospital of Shandong University, Jinan, 250012, Shandong, People's Republic of China
| | - Chunmei Zhang
- Department of Cardiology, Qilu Hospital of Shandong University, Jinan, 250012, Shandong, People's Republic of China
| | - Linghong Liu
- Research Center of Stem Cell and Regenerative Medicine, Shandong University, Jinan, 250012, Shandong, People's Republic of China. .,Laboratory of Cryomedicine, Qilu Hospital of Shandong University, Jinan, 250012, Shandong, People's Republic of China.
| | - Yanwen Bi
- Department of Cardiovascular Surgery, Qilu Hospital of Shandong University, Jinan, 250012, Shandong, People's Republic of China.
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29
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PERK Inhibition Mitigates Restenosis and Thrombosis: A Potential Low-Thrombogenic Antirestenotic Paradigm. JACC Basic Transl Sci 2020; 5:245-263. [PMID: 32215348 PMCID: PMC7091514 DOI: 10.1016/j.jacbts.2019.12.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Revised: 12/13/2019] [Accepted: 12/13/2019] [Indexed: 12/18/2022]
Abstract
Drug-eluting stents impede neointimal smooth muscle cell hyperplasia but exacerbate endothelial cell dysfunction and thrombogenicity. It has been a challenge to identify a common target to inhibit both. Findings in this study suggest PERK as such a target. A PERK inhibitor administered either via an endovascular (in biomimetic nanocarriers) or perivascular (in hydrogel) route effectively mitigated neointimal hyperplasia in rats. Oral gavage of the PERK inhibitor partially preserved the normal blood flow in a mouse model of induced thrombosis. Dampening PERK activity inhibited STAT3 while activating SRF in smooth muscle cells, and also reduced prothrombogenic tissue factor and growth impairment of endothelial cells.
Developing endothelial-protective, nonthrombogenic antirestenotic treatments has been a challenge. A major hurdle to this has been the identification of a common molecular target in both smooth muscle cells and endothelial cells, inhibition of which blocks dysfunction of both cell types. The authors’ findings suggest that the PERK kinase could be such a target. Importantly, PERK inhibition mitigated both restenosis and thrombosis in preclinical models, implicating a low-thrombogenic antirestenotic paradigm.
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Key Words
- ATF, activating transcription factor
- Ad, adenovirus
- CHOP, CCAAT-enhancer-binding protein homologous protein
- DES, drug-eluting stents
- DMSO, dimethyl sulfoxide
- EC, endothelial cell
- ER, endoplasmic reticulum
- FBS, fetal bovine serum
- GFP, green fluorescent protein
- HA, hemagglutinin
- I/M, intima to media
- IEL, internal elastic lamina
- IH, intimal hyperplasia
- IRE1, inositol-requiring kinase 1
- MRTF-A, myocardin related transcription factor A
- PDGF, platelet-derived growth factor
- PDGF-BB, platelet-derived growth factor with 2 B subunits
- PERK
- PERK, protein kinase RNA-like endoplasmic reticulum kinase
- SMA, smooth muscle actin
- SMC, smooth muscle cell
- SRF, serum response factor
- STAT3, signal transducer and activator of transcription 3
- TNF, tumor necrosis factor
- eIF2, eukaryotic translation initiation factor 2
- endothelial cells
- restenosis
- siRNA, small interfering ribonucleic acid
- smooth muscle cells
- thrombosis
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30
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Chan AHP, Filipe EC, Tan RP, Santos M, Yang N, Hung J, Feng J, Nazir S, Benn AJ, Ng MKC, Rnjak-Kovacina J, Wise SG. Altered processing enhances the efficacy of small-diameter silk fibroin vascular grafts. Sci Rep 2019; 9:17461. [PMID: 31767928 PMCID: PMC6877724 DOI: 10.1038/s41598-019-53972-y] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Accepted: 11/06/2019] [Indexed: 01/24/2023] Open
Abstract
Current synthetic vascular grafts are not suitable for use in low-diameter applications. Silk fibroin is a promising natural graft material which may be an effective alternative. In this study, we compared two electrospun silk grafts with different manufacturing processes, using either water or hexafluoroisopropanol (HFIP) as solvent. This resulted in markedly different Young's modulus, ultimate tensile strength and burst pressure, with HFIP spun grafts observed to have thicker fibres, and greater stiffness and strength relative to water spun. Assessment in a rat abdominal aorta grafting model showed significantly faster endothelialisation of the HFIP spun graft relative to water spun. Neointimal hyperplasia in the HFIP graft also stabilised significantly earlier, correlated with an earlier SMC phenotype switch from synthetic to contractile, increasing extracellular matrix protein density. An initial examination of the macrophage response showed that HFIP spun conduits promoted an anti-inflammatory M2 phenotype at early timepoints while reducing the pro-inflammatory M1 phenotype relative to water spun grafts. These observations demonstrate the important role of the manufacturing process and physical graft properties in determining the physiological response. Our study is the first to comprehensively study these differences for silk in a long-term rodent model.
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Affiliation(s)
- Alex H P Chan
- The Heart Research Institute, 7 Eliza Street, Newtown, Sydney, NSW, 2042, Australia.,Sydney Medical School, University of Sydney, Sydney, NSW, 2006, Australia
| | - Elysse C Filipe
- Garvan Institute of Medical Research & The Kinghorn Cancer Center, Sydney, NSW, 2010, Australia.,St Vincent's Clinical School, Faculty of Medicine, UNSW Sydney, Sydney, NSW, 2010, Australia
| | - Richard P Tan
- The Heart Research Institute, 7 Eliza Street, Newtown, Sydney, NSW, 2042, Australia.,Sydney Medical School, University of Sydney, Sydney, NSW, 2006, Australia
| | - Miguel Santos
- The Heart Research Institute, 7 Eliza Street, Newtown, Sydney, NSW, 2042, Australia.,Sydney Medical School, University of Sydney, Sydney, NSW, 2006, Australia
| | - Nianji Yang
- The Heart Research Institute, 7 Eliza Street, Newtown, Sydney, NSW, 2042, Australia
| | - Juichien Hung
- The Heart Research Institute, 7 Eliza Street, Newtown, Sydney, NSW, 2042, Australia
| | - Jieyao Feng
- The Heart Research Institute, 7 Eliza Street, Newtown, Sydney, NSW, 2042, Australia
| | - Sidra Nazir
- The Heart Research Institute, 7 Eliza Street, Newtown, Sydney, NSW, 2042, Australia
| | - Alexander J Benn
- The Heart Research Institute, 7 Eliza Street, Newtown, Sydney, NSW, 2042, Australia
| | - Martin K C Ng
- Sydney Medical School, University of Sydney, Sydney, NSW, 2006, Australia.,Department of Cardiology, Royal Prince Alfred Hospital, Camperdown, Sydney, NSW, 2050, Australia
| | - Jelena Rnjak-Kovacina
- Graduate School of Biomedical Engineering, UNSW Sydney, Sydney, NSW, 2052, Australia.
| | - Steven G Wise
- The Heart Research Institute, 7 Eliza Street, Newtown, Sydney, NSW, 2042, Australia. .,Sydney Medical School, University of Sydney, Sydney, NSW, 2006, Australia. .,School of Medical Sciences, Dept of Physiology, University of Sydney, Sydney, NSW, 2006, Australia. .,Charles Perkins Centre, University of Sydney, Sydney, NSW, 2006, Australia.
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31
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Han S, Xu S, Zhou J, Qiao A, Boriboun C, Ma W, Li H, Biyashev D, Yang L, Zhang E, Liu Q, Jiang S, Zhao TC, Krishnamurthy P, Zhang C, Richard S, Qiu H, Zhang J, Qin G. Sam68 impedes the recovery of arterial injury by augmenting inflammatory response. J Mol Cell Cardiol 2019; 137:82-92. [PMID: 31639388 DOI: 10.1016/j.yjmcc.2019.10.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Revised: 09/23/2019] [Accepted: 10/14/2019] [Indexed: 12/15/2022]
Abstract
OBJECTIVE The role of Src-associated-in-mitosis-68-kDa (Sam68) in cardiovascular biology has not been studied. A recent report suggests that Sam68 promotes TNF-α-induced NF-κB activation in fibroblasts. Here we sought to dissect the molecular mechanism by which Sam68 regulates NF-κB signaling and its functional significance in vascular injury. APPROACH AND RESULTS The endothelial denudation injury was induced in the carotid artery of Sam68-null (Sam68-/-) and WT mice. Sam68-/- mice displayed an accelerated re-endothelialization and attenuated neointima hyperplasia, which was associated with a reduced macrophage infiltration and lowered expression of pro-inflammatory cytokines in the injured vessels. Remarkably, the ameliorated vascular remodeling was recapitulated in WT mice after receiving transplantation of bone marrow (BM) from Sam68-/- mice, suggesting the effect was attributable to BM-derived inflammatory cells. In cultured Raw264.7 macrophages, knockdown of Sam68 resulted in a significant reduction in the TNF-α-induced expression of TNF-α, IL-1β, and IL-6 and in the level of nuclear phospho-p65, indicating attenuated NF-κB activation; and these results were confirmed in peritoneal and BM-derived macrophages of Sam68-/- vs. WT mice. Furthermore, co-immunoprecipitation and mass-spectrometry identified Filamin A (FLNA) as a novel Sam68-interacting protein upon TNF-α treatment. Loss- and gain-of-function experiments suggest that Sam68 and FLNA are mutually dependent for NF-κB activation and pro-inflammatory cytokine expression, and that the N-terminus of Sam68 is required for TRAF2-FLNA interaction. CONCLUSIONS Sam68 promotes pro-inflammatory response in injured arteries and impedes recovery by interacting with FLNA to stabilize TRAF2 on the cytoskeleton and consequently potentiate NF-κB signaling.
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Affiliation(s)
- Shuling Han
- Feinberg Cardiovascular Research Institute, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Shiyue Xu
- Molecular Cardiology Program, Department of Biomedical Engineering, School of Medicine and School of Engineering, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Junlan Zhou
- Feinberg Cardiovascular Research Institute, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Aijun Qiao
- Molecular Cardiology Program, Department of Biomedical Engineering, School of Medicine and School of Engineering, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Chan Boriboun
- Molecular Cardiology Program, Department of Biomedical Engineering, School of Medicine and School of Engineering, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Wenxia Ma
- Molecular Cardiology Program, Department of Biomedical Engineering, School of Medicine and School of Engineering, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Huadong Li
- Molecular Cardiology Program, Department of Biomedical Engineering, School of Medicine and School of Engineering, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Dauren Biyashev
- Feinberg Cardiovascular Research Institute, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Liu Yang
- Molecular Cardiology Program, Department of Biomedical Engineering, School of Medicine and School of Engineering, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Eric Zhang
- Molecular Cardiology Program, Department of Biomedical Engineering, School of Medicine and School of Engineering, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Qinghua Liu
- Institute for Medical Biology and Hubei Provincial Key Laboratory for Protection and Application of Special Plants in Wuling Area of China, College of Life Sciences, South-Central University for Nationalities, Wuhan 430074, Hubei, China
| | - Shayi Jiang
- Department of Hematology, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai 20062, China
| | - Ting C Zhao
- Department of Surgery, Roger Williams Medical Center, Boston University Medical School, Providence, RI 02908, USA
| | - Prasanna Krishnamurthy
- Molecular Cardiology Program, Department of Biomedical Engineering, School of Medicine and School of Engineering, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Chunxiang Zhang
- Molecular Cardiology Program, Department of Biomedical Engineering, School of Medicine and School of Engineering, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Stéphane Richard
- Lady Davis Institute for Medical Research, McGill University, Montreal, Quebec, Canada
| | - Hongyu Qiu
- Center of Molecular and Translational Medicine, Institution of Biomedical Science, Georgia State University, Atlanta, GA 30303, USA
| | - Jianyi Zhang
- Molecular Cardiology Program, Department of Biomedical Engineering, School of Medicine and School of Engineering, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Gangjian Qin
- Feinberg Cardiovascular Research Institute, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA; Molecular Cardiology Program, Department of Biomedical Engineering, School of Medicine and School of Engineering, University of Alabama at Birmingham, Birmingham, AL 35294, USA.
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32
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Chen CH, Ho YC, Ho HH, Liang LY, Jiang WC, Lee GL, Lee JK, Hsu YJ, Kuo CC, Wu KK, Yet SF. Tryptophan metabolite 5-methoxytryptophan ameliorates arterial denudation-induced intimal hyperplasia via opposing effects on vascular endothelial and smooth muscle cells. Aging (Albany NY) 2019; 11:8604-8622. [PMID: 31596731 PMCID: PMC6814618 DOI: 10.18632/aging.102350] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Accepted: 09/28/2019] [Indexed: 01/23/2023]
Abstract
Cardiovascular diseases remain the leading cause of morbidity and mortality worldwide, particularly among older adults. Despite the advent of medical technology, restenosis is still an issue after interventional procedures. Tryptophan metabolite 5-methoxytryptophan (5-MTP) has recently been shown to protect against systemic inflammatory responses. This study aimed to investigate the function and mechanisms of 5-MTP in interventional procedure-induced restenosis. We found that after mouse femoral artery denudation with a guide wire, 5-MTP accelerated recovery of endothelium in the denuded area and reduced vascular leakage and intimal thickening. 5-MTP increased endothelial cell proliferation in the denuded arteries and rescued TNF-α-reduced endothelial cell proliferation and migration, likely via maintaining vascular endothelial growth factor receptor 2 activation. In contrast, 5-MTP preserved differentiated phenotype of medial vascular smooth muscle cells (VSMCs) and decreased VSMC proliferation and migration. Furthermore, 5-MTP maintained expression levels of critical transcription factors for VSMC marker gene expressions via attenuated activation of p38 MAPK and NFκB-p65. Our findings uncover a novel protective mechanism of 5-MTP in restenosis. In response to denudation injury, 5-MTP attenuates intimal hyperplasia via concerted but opposing actions on endothelial cells and VSMCs. Taken together, our results suggest that 5-MTP is a valuable therapeutic target for arterial injury-induced restenosis.
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Affiliation(s)
- Chung-Huang Chen
- Institute of Cellular and System Medicine, National Health Research Institutes, Zhunan 35053, Taiwan
| | - Yen-Chun Ho
- Institute of Cellular and System Medicine, National Health Research Institutes, Zhunan 35053, Taiwan
| | - Hua-Hui Ho
- Institute of Cellular and System Medicine, National Health Research Institutes, Zhunan 35053, Taiwan
| | - Li-Yu Liang
- Institute of Cellular and System Medicine, National Health Research Institutes, Zhunan 35053, Taiwan
| | - Wei-Cheng Jiang
- Institute of Cellular and System Medicine, National Health Research Institutes, Zhunan 35053, Taiwan
| | - Guan-Lin Lee
- Institute of Cellular and System Medicine, National Health Research Institutes, Zhunan 35053, Taiwan
| | - Jen-Kuang Lee
- Division of Cardiology, Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei 10002, Taiwan
| | - Yu-Juei Hsu
- Division of Nephrology, Department of Medicine, Tri-Service General Hospital, Taipei 11490, Taiwan
| | - Cheng-Chin Kuo
- Institute of Cellular and System Medicine, National Health Research Institutes, Zhunan 35053, Taiwan.,Graduate Institute of Biomedical Sciences, China Medical University, Taichung 40402, Taiwan
| | - Kenneth K Wu
- Institute of Cellular and System Medicine, National Health Research Institutes, Zhunan 35053, Taiwan.,Graduate Institute of Biomedical Sciences, China Medical University, Taichung 40402, Taiwan.,Department of Medical Sciences and Institute of Biotechnology, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Shaw-Fang Yet
- Institute of Cellular and System Medicine, National Health Research Institutes, Zhunan 35053, Taiwan.,Graduate Institute of Biomedical Sciences, China Medical University, Taichung 40402, Taiwan
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33
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Lee CH, Hsieh MJ, Chang SH, Hung KC, Wang CJ, Hsu MY, Juang JH, Hsieh IC, Wen MS, Liu SJ. Nanofibrous vildagliptin-eluting stents enhance re-endothelialization and reduce neointimal formation in diabetes: in vitro and in vivo. Int J Nanomedicine 2019; 14:7503-7513. [PMID: 31686818 PMCID: PMC6751553 DOI: 10.2147/ijn.s211898] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Accepted: 07/16/2019] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND The high lifetime risk of vascular disease is one of the important issues that plague patients with diabetes mellitus. Systemic oral vildagliptin administration favors endothelial recovery and inhibits smooth muscle cell (SMC) proliferation. However, the localized release of vildagliptin in the diabetic vessel damage has seldom been investigated. RESEARCH DESIGN AND METHODS In this work, nanofiber-eluting stents that loaded with vildagliptin, a dipeptidyl peptidase-4 enzyme (DPP-4) inhibitor, was fabricated to treat diabetic vascular disease. To prepare nanofibers, the poly (D,L)-lactide-co-glycolide (PLGA) and vildagliptin were mixed using hexafluoroisopropanol and electrospinning process. In vitro and in vivo release rates of the vildagliptin were characterized using high-performance liquid chromatography. RESULTS Effective vildagliptin concentrations were delivered for more than 28 days from the nanofibrous membranes coating on the surface of the stents in vitro and in vivo. The vildagliptin-eluting PLGA membranes greatly accelerated the recovery of diabetic endothelia and reduced SMC hyperplasia. The type I collagen content of the diabetic vascular intimal area that was treated by vildagliptin-eluting stents was lower than that of the non-vildagliptin-eluting group. CONCLUSION The experimental results revealed that stenting with vildagliptin-eluting PLGA membranes could potentially promote healing for diabetic arterial diseases.
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Affiliation(s)
- Chen-Hung Lee
- Division of Cardiology, Department of Internal Medicine, Chang Gung Memorial Hospital-Linkou, Chang Gung University College of Medicine, Linkou, Taiwan
| | - Ming-Jer Hsieh
- Division of Cardiology, Department of Internal Medicine, Chang Gung Memorial Hospital-Linkou, Chang Gung University College of Medicine, Linkou, Taiwan
| | - Shang-Hung Chang
- Division of Cardiology, Department of Internal Medicine, Chang Gung Memorial Hospital-Linkou, Chang Gung University College of Medicine, Linkou, Taiwan
| | - Kuo-Chun Hung
- Division of Cardiology, Department of Internal Medicine, Chang Gung Memorial Hospital-Linkou, Chang Gung University College of Medicine, Linkou, Taiwan
| | - Chao-Jan Wang
- Department of Medical Imaging and Intervention, Chang Gung Memorial Hospital, Linkou, Tao-Yuan, Taiwan
| | - Ming-Yi Hsu
- Department of Medical Imaging and Intervention, Chang Gung Memorial Hospital, Linkou, Tao-Yuan, Taiwan
| | - Jyuhn-Huarng Juang
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Chang Gung University and Chang Gung Memorial Hospital, Tao-Yuan, Taiwan
| | - I-Chang Hsieh
- Division of Cardiology, Department of Internal Medicine, Chang Gung Memorial Hospital-Linkou, Chang Gung University College of Medicine, Linkou, Taiwan
| | - Ming-Shien Wen
- Division of Cardiology, Department of Internal Medicine, Chang Gung Memorial Hospital-Linkou, Chang Gung University College of Medicine, Linkou, Taiwan
| | - Shih-Jung Liu
- Department of Mechanical Engineering, Chang Gung University, Tao-Yuan, Taiwan
- Department of Orthopedic Surgery, Chang Gung Memorial Hospital-Linkou, Tao-Yuan33305, Taiwan
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Escuer J, Martínez MA, McGinty S, Peña E. Mathematical modelling of the restenosis process after stent implantation. J R Soc Interface 2019; 16:20190313. [PMID: 31409233 DOI: 10.1098/rsif.2019.0313] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
The stenting procedure has evolved to become a highly successful technique for the clinical treatment of advanced atherosclerotic lesions in arteries. However, the development of in-stent restenosis remains a key problem. In this work, a novel two-dimensional continuum mathematical model is proposed to describe the complex restenosis process following the insertion of a stent into a coronary artery. The biological species considered to play a key role in restenosis development are growth factors, matrix metalloproteinases, extracellular matrix, smooth muscle cells and endothelial cells. Diffusion-reaction equations are used for modelling the mass balance between species in the arterial wall. Experimental data from the literature have been used in order to estimate model parameters. Moreover, a sensitivity analysis has been performed to study the impact of varying the parameters of the model on the evolution of the biological species. The results demonstrate that this computational model qualitatively captures the key characteristics of the lesion growth and the healing process within an artery subjected to non-physiological mechanical forces. Our results suggest that the arterial wall response is driven by the damage area, smooth muscle cell proliferation and the collagen turnover among other factors.
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Affiliation(s)
- Javier Escuer
- Applied Mechanics and Bioengineering Group (AMB), Aragón Institute of Engineering Research (I3A), University of Zaragoza, Zaragoza, Spain
| | - Miguel A Martínez
- Applied Mechanics and Bioengineering Group (AMB), Aragón Institute of Engineering Research (I3A), University of Zaragoza, Zaragoza, Spain.,Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Spain
| | - Sean McGinty
- Division of Biomedical Engineering, University of Glasgow, Glasgow, UK
| | - Estefanía Peña
- Applied Mechanics and Bioengineering Group (AMB), Aragón Institute of Engineering Research (I3A), University of Zaragoza, Zaragoza, Spain.,Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Spain
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35
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Chavez RD, Walls SL, Cardinal KO. Tissue-engineered blood vessel mimics in complex geometries for intravascular device testing. PLoS One 2019; 14:e0217709. [PMID: 31242197 PMCID: PMC6594592 DOI: 10.1371/journal.pone.0217709] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Accepted: 05/14/2019] [Indexed: 02/08/2023] Open
Abstract
Objective Intravascular stents are commonly used to treat occluded arteries during coronary heart disease. After coronary stent implantation, endothelial cells grow over the stent, which is referred to as re-endothelialization. Re-endothelialization prevents blood from clotting on the stent surface and is a good predictor of stent success. Blood vessel mimics (BVMs) are in vitro tissue-engineered models of human blood vessels that may be used to preclinically test stents for re-endothelialization. BVMs have been developed in straight geometries. However, the United States Food and Drug Administration recommends that devices intended to treat coronary occlusions be preclinically tested in bent and bifurcated vessels due to the complex geometries of native coronary arteries. The main objectives of this study were to develop and characterize BVMs in complex geometries. Design Bioreactors were designed and constructed so that BVMs could be cultivated in bent (>45°) and bifurcated geometries. Human umbilical vein endothelial cells were sodded onto complex-shaped scaffolds, and the resulting BVMs were characterized for cell deposition. For a final proof of concept, a coronary stent was deployed in a severely angulated BVM. Results The new bioreactors were easy to use and mounting scaffolds in complex geometries in the bioreactors was successful. After sodding scaffolds with cells, there were no statistically significant differences between the cell densities along the length of the BVMs, on the top and bottom halves of the BVMs, or on the inner and outer halves of the BVMs. This suggests cells deposited evenly throughout the scaffolds, resulting in consistent complex-geometry BVMs. Also, a coronary stent was successfully deployed in a severely angulated BVM. Conclusions Bioreactors can be constructed for housing complex-shaped vessels. BVMs can be developed in the complex geometries observed in native coronary arteries with endothelial cells evenly dispersed throughout BVM lumens.
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Affiliation(s)
- Robert Dalton Chavez
- Department of Biomedical Engineering, California Polytechnic State University, San Luis Obispo, California, United States of America
| | - Sara Leifer Walls
- Department of Biomedical Engineering, California Polytechnic State University, San Luis Obispo, California, United States of America
| | - Kristen O’Halloran Cardinal
- Department of Biomedical Engineering, California Polytechnic State University, San Luis Obispo, California, United States of America
- * E-mail:
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36
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Delattre C, Velazquez D, Roques C, Pavon-Djavid G, Ollivier V, Lokajczyk A, Avramoglou T, Gueguen V, Louedec L, Caligiuri G, Jandrot-Perrus M, Boisson-Vidal C, Letourneur D, Meddahi-Pelle A. In vitro and in vivo evaluation of a dextran-graft-polybutylmethacrylate copolymer coated on CoCr metallic stent. ACTA ACUST UNITED AC 2019; 9:25-36. [PMID: 30788257 PMCID: PMC6378099 DOI: 10.15171/bi.2019.04] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Revised: 09/17/2018] [Accepted: 09/24/2018] [Indexed: 02/06/2023]
Abstract
Introduction: The major complications of stent implantation are restenosis and late stent thrombosis. PBMA polymers are used for stent coating because of their mechanical properties. We previously synthesized and characterized Dextrangraft-polybutylmethacrylate copolymer (Dex-PBMA) as a potential stent coating. In this study, we evaluated the haemocompatibility and biocompatibility properties of Dex-PBMA in vitro and in vivo. Methods: Here, we investigated: (1) the effectiveness of polymer coating under physiological conditions and its ability to release Tacrolimus®, (2) the capacity of Dex-PBMA to inhibit Staphylococcus aureus adhesion, (3) the thrombin generation and the human platelet adhesion in static and dynamic conditions, (4) the biocompatibility properties in vitro on human endothelial colony forming cells ( ECFC) and on mesenchymal stem cells (MSC) and in vivo in rat models, and (5) we implanted Dex-PBMA and Dex-PBMATAC coated stents in neointimal hyperplasia restenosis rabbit model. Results: Dex-PBMA coating efficiently prevented bacterial adhesion and release Tacrolimus®. Dex-PBMA exhibit haemocompatibility properties under flow and ECFC and MSC compatibility. In vivo, no pathological foreign body reaction was observed neither after intramuscular nor intravascular aortic implantation. After Dex-PBMA and Dex-PBMATAC coated stents 30 days implantation in a restenosis rabbit model, an endothelial cell coverage was observed and the lumen patency was preserved. Conclusion: Based on our findings, Dex-PBMA exhibited vascular compatibility and can potentially be used as a coating for metallic coronary stents.
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Affiliation(s)
- Cécilia Delattre
- INSERM, UMR_S1148, Laboratory for Vascular Translational Sciences, Hôpital Bichat
| | - Diego Velazquez
- INSERM, UMR_S1148, Laboratory for Vascular Translational Sciences, Hôpital Bichat
| | - Caroline Roques
- INSERM, UMR_S1148, Laboratory for Vascular Translational Sciences, Hôpital Bichat.,Université Paris 13, Sorbonne Paris Cité, France
| | - Graciela Pavon-Djavid
- INSERM, UMR_S1148, Laboratory for Vascular Translational Sciences, Hôpital Bichat.,Université Paris 13, Sorbonne Paris Cité, France
| | - Véronique Ollivier
- INSERM, UMR_S1148, Laboratory for Vascular Translational Sciences, Hôpital Bichat.,Université Paris 13, Sorbonne Paris Cité, France
| | - Anna Lokajczyk
- Inserm UMR_S1140, Paris France.,Université Paris Descartes, Sorbonne Paris Cité, France
| | - Thierry Avramoglou
- INSERM, UMR_S1148, Laboratory for Vascular Translational Sciences, Hôpital Bichat.,Université Paris 13, Sorbonne Paris Cité, France
| | - Virginie Gueguen
- INSERM, UMR_S1148, Laboratory for Vascular Translational Sciences, Hôpital Bichat.,Université Paris 13, Sorbonne Paris Cité, France
| | - Liliane Louedec
- INSERM, UMR_S1148, Laboratory for Vascular Translational Sciences, Hôpital Bichat.,Université Paris 13, Sorbonne Paris Cité, France
| | - Giuseppina Caligiuri
- INSERM, UMR_S1148, Laboratory for Vascular Translational Sciences, Hôpital Bichat.,Université Paris 13, Sorbonne Paris Cité, France
| | - Martine Jandrot-Perrus
- INSERM, UMR_S1148, Laboratory for Vascular Translational Sciences, Hôpital Bichat.,Université Paris 13, Sorbonne Paris Cité, France
| | | | - Didier Letourneur
- INSERM, UMR_S1148, Laboratory for Vascular Translational Sciences, Hôpital Bichat.,Université Paris 13, Sorbonne Paris Cité, France
| | - Anne Meddahi-Pelle
- INSERM, UMR_S1148, Laboratory for Vascular Translational Sciences, Hôpital Bichat.,Université Paris 13, Sorbonne Paris Cité, France
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Johnson M, Trebak M. ORAI channels in cellular remodeling of cardiorespiratory disease. Cell Calcium 2019; 79:1-10. [PMID: 30772685 DOI: 10.1016/j.ceca.2019.01.005] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Revised: 01/31/2019] [Accepted: 01/31/2019] [Indexed: 01/08/2023]
Abstract
Cardiorespiratory disease, which includes systemic arterial hypertension, restenosis, atherosclerosis, pulmonary arterial hypertension, asthma, and chronic obstructive pulmonary disease (COPD) are highly prevalent and devastating diseases with limited therapeutic modalities. A common pathophysiological theme to these diseases is cellular remodeling, which is contributed by changes in expression and activation of ion channels critical for either excitability or growth. Calcium (Ca2+) signaling and specifically ORAI Ca2+ channels have emerged as significant regulators of smooth muscle, endothelial, epithelial, platelet, and immune cell remodeling. This review details the dysregulation of ORAI in cardiorespiratory diseases, and how this dysregulation of ORAI contributes to cellular remodeling.
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Affiliation(s)
- Martin Johnson
- Department of Cellular and Molecular Physiology, The Pennsylvania State University College of Medicine, Hershey, PA 17033, United States
| | - Mohamed Trebak
- Department of Cellular and Molecular Physiology, The Pennsylvania State University College of Medicine, Hershey, PA 17033, United States.
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38
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Tryfonos A, Green DJ, Dawson EA. Effects of Catheterization on Artery Function and Health: When Should Patients Start Exercising Following Their Coronary Intervention? Sports Med 2019; 49:397-416. [PMID: 30719682 DOI: 10.1007/s40279-019-01055-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Coronary artery disease (CAD) is a leading cause of death worldwide, and percutaneous transluminal coronary angiography (PTCA) and/or percutaneous coronary intervention (PCI; angioplasty) are commonly used to diagnose and/or treat the obstructed coronaries. Exercise-based rehabilitation is recommended for all CAD patients; however, most guidelines do not specify when exercise training should commence following PTCA and/or PCI. Catheterization can result in arterial dysfunction and acute injury, and given the fact that exercise, particularly at higher intensities, is associated with elevated inflammatory and oxidative stress, endothelial dysfunction and a pro-thrombotic milieu, performing exercise post-PTCA/PCI may transiently elevate the risk of cardiac events. This review aims to summarize extant literature relating to the impacts of coronary interventions on arterial function, including the time-course of recovery and the potential deleterious and/or beneficial impacts of acute versus long-term exercise. The current literature suggests that arterial dysfunction induced by catheterization recovers 4-12 weeks following catheterization. This review proposes that a period of relative arterial vulnerability may exist and exercise during this period may contribute to elevated event susceptibility. We therefore suggest that CAD patients start an exercise training programme between 2 and 4 weeks post-PCI, recognizing that the literature suggest there is a 'grey area' for functional recovery between 2 and 12 weeks post-catheterization. The timing of exercise onset should take into consideration the individual characteristics of patients (age, severity of disease, comorbidities) and the intensity, frequency and duration of the exercise prescription.
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Affiliation(s)
- Andrea Tryfonos
- Research Institute for Sport and Exercise Science, Liverpool John Moores University, Liverpool, L3 3AF, UK
| | - Daniel J Green
- School of Human Sciences (Exercise and Sport Science), The University of Western Australia, Crawley, WA, 6009, Australia
| | - Ellen A Dawson
- Research Institute for Sport and Exercise Science, Liverpool John Moores University, Liverpool, L3 3AF, UK.
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39
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Meng LB, Chen K, Zhang YM, Gong T. Common Injuries and Repair Mechanisms in the Endothelial Lining. Chin Med J (Engl) 2018; 131:2338-2345. [PMID: 30246720 PMCID: PMC6166454 DOI: 10.4103/0366-6999.241805] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Objective: Endothelial cells (ECs) are important metabolic and endocrinal organs which play a significant role in regulating vascular function. Vascular ECs, located between the blood and vascular tissues, can not only complete the metabolism of blood and interstitial fluid but also synthesize and secrete a variety of biologically active substances to maintain vascular tension and keep a normal flow of blood and long-term patency. Therefore, this article presents a systematic review of common injuries and healing mechanisms for the vascular endothelium. Data Sources: An extensive search in the PubMed database was undertaken, focusing on research published after 2003 with keywords including endothelium, vascular, wounds and injuries, and wound healing. Study Selection: Several types of articles, including original studies and literature reviews, were identified and reviewed to summarize common injury and repair processes of the endothelial lining. Results: Endothelial injury is closely related to the development of multiple cardiovascular and cerebrovascular diseases. However, the mechanism of vascular endothelial injury is not fully understood. Numerous studies have shown that the mechanisms of EC injury mainly involve inflammatory reactions, physical stimulation, chemical poisons, concurrency of related diseases, and molecular changes. Endothelial progenitor cells play an important role during the process of endothelial repair after such injuries. What's more, a variety of restorative cells, changes in cytokines and molecules, chemical drugs, certain RNAs, regulation of blood pressure, and physical fitness training protect the endothelial lining by reducing the inducing factors, inhibiting inflammation and oxidative stress reactions, and delaying endothelial caducity. Conclusions: ECs are always in the process of being damaged. Several therapeutic targets and drugs were seeked to protect the endothelium and promote repair.
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Affiliation(s)
- Ling-Bing Meng
- Department of Neurology, Beijing Hospital, National Center of Gerontology, Beijing 100730, China
| | - Kun Chen
- National Center for Clinical Laboratories, Beijing Hospital, National Center of Gerontology, Beijing 100730, China
| | - Yuan-Meng Zhang
- Department of Internal Medicine, Jinzhou Medical University, Jinzhou, Liaoning 121001, China
| | - Tao Gong
- Department of Neurology, Beijing Hospital, National Center of Gerontology, Beijing 100730, China
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40
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Iso Y, Usui S, Toyoda M, Spees JL, Umezawa A, Suzuki H. Bone marrow-derived mesenchymal stem cells inhibit vascular smooth muscle cell proliferation and neointimal hyperplasia after arterial injury in rats. Biochem Biophys Rep 2018; 16:79-87. [PMID: 30377672 PMCID: PMC6202691 DOI: 10.1016/j.bbrep.2018.10.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Revised: 08/28/2018] [Accepted: 10/07/2018] [Indexed: 12/12/2022] Open
Abstract
We investigated whether mesenchymal stem cell (MSC)-based treatment could inhibit neointimal hyperplasia in a rat model of carotid arterial injury and explored potential mechanisms underlying the positive effects of MSC therapy on vascular remodeling/repair. Sprague-Dawley rats underwent balloon injury to their right carotid arteries. After 2 days, we administered cultured MSCs from bone marrow of GFP-transgenic rats (0.8 × 106 cells, n = 10) or vehicle (controls, n = 10) to adventitial sites of the injured arteries. As an additional control, some rats received a higher dose of MSCs by systemic infusion (3 × 106 cells, tail vein; n = 4). Local vascular MSC administration significantly prevented neointimal hyperplasia (intima/media ratio) and reduced the percentage of Ki67 + proliferating cells in arterial walls by 14 days after treatment, despite little evidence of long-term MSC engraftment. Notably, systemic MSC infusion did not alter neointimal formation. By immunohistochemistry, compared with neointimal cells of controls, cells in MSC-treated arteries expressed reduced levels of embryonic myosin heavy chain and RM-4, an inflammatory cell marker. In the presence of platelet-derived growth factor (PDGF-BB), conditioned medium from MSCs increased p27 protein levels and significantly attenuated VSMC proliferation in culture. Furthermore, MSC-conditioned medium suppressed the expression of inflammatory cytokines and RM-4 in PDGF-BB-treated VSMCs. Thus, perivascular administration of MSCs may improve restenosis after vascular injury through paracrine effects that modulate VSMC inflammatory phenotype.
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Affiliation(s)
- Yoshitaka Iso
- Division of Cardiology, Department of Internal Medicine, Showa University Fujigaoka Hospital, 1-30 Fujigaoka, Yokohama City, Kanagawa 227-8518, Japan
- Showa University Research Institute for Sport and Exercise Sciences, 2-1-1 Fujigaoka, Yokohama City, Kanagawa 227-8518, Japan
| | - Sayaka Usui
- Division of Cardiology, Department of Internal Medicine, Showa University Fujigaoka Hospital, 1-30 Fujigaoka, Yokohama City, Kanagawa 227-8518, Japan
| | - Masashi Toyoda
- Vascular Medicine, Tokyo Metropolitan Institute of Gerontology, 2-35 Sakaecho, Itabashi-ku, Tokyo 173-0015, Japan
| | - Jeffrey L. Spees
- Department of Medicine, Stem Cell Core, University of Vermont, 208 South Park Drive, Ste 2, Colchester, VT 05446, USA
| | - Akihiro Umezawa
- Center for Regenerative Medicine, National Institute for Child Health and Development, 2-10-1 Okura, Setagaya-ku, Tokyo 157-8535, Japan
| | - Hiroshi Suzuki
- Division of Cardiology, Department of Internal Medicine, Showa University Fujigaoka Hospital, 1-30 Fujigaoka, Yokohama City, Kanagawa 227-8518, Japan
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41
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Plant-Derived Products for Treatment of Vascular Intima Hyperplasia Selectively Inhibit Vascular Smooth Muscle Cell Functions. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2018; 2018:3549312. [PMID: 30405738 PMCID: PMC6201497 DOI: 10.1155/2018/3549312] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Revised: 09/01/2018] [Accepted: 09/20/2018] [Indexed: 12/11/2022]
Abstract
Natural products are used widely for preventing intimal hyperplasia (IH), a common cardiovascular disease. Four different cells initiate and progress IH, namely, vascular smooth muscle, adventitial and endothelial cells, and circulation or bone marrow-derived cells. Vascular smooth muscle cells (VSMCs) play a critical role in initiation and development of intimal thickening and formation of neointimal hyperplasia. In this review, we describe the different originating cells involved in vascular IH and emphasize the effect of different natural products on inhibiting abnormal cellular functions, such as VSMC proliferation and migration. We further present a classification for the different natural products like phenols, flavonoids, terpenes, and alkaloids that suppress VSMC growth. Abnormal VSMC physiology involves disturbance in MAPKs, PI3K/AKT, JAK-STAT, FAK, and NF-κB signal pathways. Most of the natural isolate studies have revealed G1/S phase of cell cycle arrest, decreased ROS production, induced cell apoptosis, restrained migration, and downregulated collagen deposition. It is necessary to screen optimal drugs from natural sources that preferentially inhibit VSMC rather than vascular endothelial cell growth to prevent early IH, restenosis following graft implantation, and atherosclerotic diseases.
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Pacharra S, Ortiz R, McMahon S, Wang W, Viebahn R, Salber J, Quintana I. Surface patterning of a novel PEG-functionalized poly-l-lactide polymer to improve its biocompatibility: Applications to bioresorbable vascular stents. J Biomed Mater Res B Appl Biomater 2018; 107:624-634. [PMID: 30091510 PMCID: PMC6585964 DOI: 10.1002/jbm.b.34155] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2017] [Revised: 04/03/2018] [Accepted: 04/22/2018] [Indexed: 12/21/2022]
Abstract
Today, research in the field of bioresorbable vascular stents (BVS) not only focusses on a new material being nontoxic but also tries to enhance its biocompatibility in terms of endothelialization potential and hemocompatibility. To this end, we used picosecond laser ablation technology as a single‐step and contactless method for surface microstructuring of a bioresorbable polymer which can be utilized in stent manufacture. The method works on all materials via fast material removal, can be easily adapted for micropatterning of tubular or more complex sample shapes and scaled up by means of micropatterning of metal molds for manufacturing. Here, picosecond laser ablation was applied to a bioresorbable, biologically inactive and polyethylene glycol‐modified poly‐l‐lactide polymer (PEGylated PLLA) to generate parallel microgrooves with varying geometries. The different patterns were thoroughly evaluated by a series of cyto‐ and hemocompatibility tests revealing that all surfaces were non‐toxic and non‐hemolytic. More importantly, patterns with 20 to 25 µm wide and 6 to 7 µm deep grooves significantly enhanced endothelial cell adhesion in comparison to samples with smaller grooves. Here, human cardiac microvascular endothelial cells were found to align along the groove direction, which is thought to encourage endothelialization of intraluminal surfaces of BVS. © 2018 The Authors Journal of Biomedical Materials Research Part B: Applied Biomaterials Published by Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater 00B: 000–000, 2018. © 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater 107B: 624–634, 2019.
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Affiliation(s)
- Sandra Pacharra
- Zentrum für klinische Forschung, Ruhr-Universität Bochum, Bochum, Germany.,Universitätsklinikum Knappschaftskrankenhaus, Chirurgische Klinik, Bochum, Germany
| | - Rocio Ortiz
- Ultraprecision Processes Unit, IK4-TEKNIKER Technological Research Center, Eibar, Gipuzkoa, Spain
| | - Sean McMahon
- Vornia Ltd, Laboratory A, Synergy Centre, Tallaght, Dublin, Ireland.,The Charles Institute of Dermatology, School of Medicine and Medical Science, University College, Dublin, Dublin, Ireland
| | - Wenxin Wang
- Vornia Ltd, Laboratory A, Synergy Centre, Tallaght, Dublin, Ireland.,The Charles Institute of Dermatology, School of Medicine and Medical Science, University College, Dublin, Dublin, Ireland
| | - Richard Viebahn
- Zentrum für klinische Forschung, Ruhr-Universität Bochum, Bochum, Germany.,Universitätsklinikum Knappschaftskrankenhaus, Chirurgische Klinik, Bochum, Germany
| | - Jochen Salber
- Zentrum für klinische Forschung, Ruhr-Universität Bochum, Bochum, Germany.,Universitätsklinikum Knappschaftskrankenhaus, Chirurgische Klinik, Bochum, Germany
| | - Iban Quintana
- Ultraprecision Processes Unit, IK4-TEKNIKER Technological Research Center, Eibar, Gipuzkoa, Spain
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Kim C, Kim BK, Hong SJ, Ahn CM, Kim JS, Ko YG, Choi D, Hong MK, Jang Y. Randomized Comparison of Strut Coverage between Ticagrelor and Clopidogrel in Acute Myocardial Infarction at 3-Month Optical Coherence Tomography. Yonsei Med J 2018; 59:624-632. [PMID: 29869460 PMCID: PMC5990671 DOI: 10.3349/ymj.2018.59.5.624] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Revised: 04/02/2018] [Accepted: 04/24/2018] [Indexed: 11/29/2022] Open
Abstract
PURPOSE This study aimed to compare the effects of ticagrelor and clopidogrel on early neointimal healing assessed with optical coherence tomography (OCT) after drug-eluting stent (DES) implantation in patients with acute myocardial infarction (AMI). MATERIALS AND METHODS AMI patients were randomly assigned to either the ticagrelor or clopidogrel arm. After DES implantation, OCT was performed to assess the percentages of uncovered struts immediately after procedure and 3 months later. RESULTS Due to early termination, 83 patients out of 106 initially enrolled patients (24% of planned participants) underwent 3-month OCT. Differences in vascular healing patterns between the two groups, including percentage of uncovered struts on 3-month OCT (9.6% vs. 11.7% in ticagrelor vs. clopidogrel, respectively; p=0.867), neointimal thickness, percentage of malapposed struts, and healing scores did not reach statistical significance. The predictors of uncovered strut on 3-month OCT included greater reference vessel diameter [odds ratio (OR)=1.96, p<0.001] and more malapposed struts (OR=1.12, p=0.003). CONCLUSION The current study did not explore favorable effect of ticagrelor on 3-month vascular healing after DES implantation. Our findings should only be considered for generating hypothesis, due to insufficient power.
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Affiliation(s)
- Choongki Kim
- Division of Cardiology, Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Byeong Keuk Kim
- Division of Cardiology, Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Korea
- Cardiovascular Research Institute, Yonsei University College of Medicine, Seoul, Korea.
| | - Sung Jin Hong
- Division of Cardiology, Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Chul Min Ahn
- Division of Cardiology, Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Korea
- Cardiovascular Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Jung Sun Kim
- Division of Cardiology, Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Korea
- Cardiovascular Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Young Guk Ko
- Division of Cardiology, Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Korea
- Cardiovascular Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Donghoon Choi
- Division of Cardiology, Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Korea
- Cardiovascular Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Myeong Ki Hong
- Division of Cardiology, Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Korea
- Cardiovascular Research Institute, Yonsei University College of Medicine, Seoul, Korea
- Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Yangsoo Jang
- Division of Cardiology, Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Korea
- Cardiovascular Research Institute, Yonsei University College of Medicine, Seoul, Korea
- Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Korea
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44
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Mi HY, Jing X, Thomsom JA, Turng LS. Promoting Endothelial Cell Affinity and Antithrombogenicity of Polytetrafluoroethylene (PTFE) by Mussel-Inspired Modification and RGD/Heparin Grafting. J Mater Chem B 2018; 6:3475-3485. [PMID: 30455952 PMCID: PMC6238965 DOI: 10.1039/c8tb00654g] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
When used as small-diameter vascular grafts (SDVGs), synthetic biomedical materials like polytetrafluoroethylene (PTFE) may induce thrombosis and intimal hyperplasia due to the lack of an endothelial cell layer. Modification of the PTFE in an aqueous solution is difficult because of its hydrophobicity. Herein, aiming to simultaneously promote endothelial cell affinity and antithrombogenicity, a mussel-inspired modification approach was employed to enable the grafting of various bioactive molecules like RGD and heparin. This approach involves a series of pragmatic steps including oxygen plasma treatment, dopamine (DA) coating, polyethylenimine (PEI) grafting, and RGD or RGD/heparin immobilization. Successful modification in each step was verified via Fourier transform infrared (FTIR) spectroscopy and X-ray photoelectron spectroscopy (XPS). Plasma treatment increased the hydrophilicity of PTFE, thereby allowing it to be efficiently coated with dopamine. Grafting of dopamine, RGD, and heparin led to an increase in surface roughness and a decrease in water contact angle due to increased surface energy. Platelet adhesion increased after dopamine and RGD modification, but it dramatically decreased when heparin was introduced. All of these modifications, especially the incorporation of RGD, showed favorable effects on endothelial cell attachment, viability, and proliferation. Due to strong cell-substrate interactions between endothelial cells and RGD, the RGD/heparin-grafted PTFE demonstrated high endothelial cell affinity. This facile modification method is highly suitable for all hydrophobic surfaces and provides a promising technique for SDVG modification to stimulate fast endothelialization and effective antithrombosis.
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Affiliation(s)
- Hao-Yang Mi
- Wisconsin Institute for Discovery, University of Wisconsin–Madison, WI, 53715, USA
- Department of Industrial Equipment and Control Engineering, South China University of Technology, Guangzhou, 510640, China
- Department of Mechanical Engineering, University of Wisconsin–Madison, WI, 53706, USA
| | - Xin Jing
- Wisconsin Institute for Discovery, University of Wisconsin–Madison, WI, 53715, USA
- Department of Industrial Equipment and Control Engineering, South China University of Technology, Guangzhou, 510640, China
- Department of Mechanical Engineering, University of Wisconsin–Madison, WI, 53706, USA
| | - James A. Thomsom
- Morgridge Institute for Research, University of Wisconsin–Madison, WI, 53715, USA
| | - Lih-Sheng Turng
- Wisconsin Institute for Discovery, University of Wisconsin–Madison, WI, 53715, USA
- Department of Mechanical Engineering, University of Wisconsin–Madison, WI, 53706, USA
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45
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Montenegro FS, Correia M, Muccillo F, Souza E Silva CG, De Lorenzo A. Associations between endothelial progenitor cells, clinical characteristics and coronary restenosis in patients undergoing percutaneous coronary artery intervention. BMC Res Notes 2018; 11:278. [PMID: 29739448 PMCID: PMC5941758 DOI: 10.1186/s13104-018-3401-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Accepted: 05/03/2018] [Indexed: 12/15/2022] Open
Abstract
Objective Endothelial progenitor cells (EPCs) are produced in the bone marrow and mobilized to the peripheral blood playing a key role in endothelial repair. The objective of this study was to evaluate circulating EPC before and after percutaneous coronary intervention (PCI) with stent implantation and their associations with coronary restenosis and adverse cardiovascular events. Venous blood was obtained before and the day after PCI. Quantification of total white blood count and identification of EPCs (CD45−CD34+CD31+CD133/2+CD309+) through immunophenotyping by flow cytometry was performed. The primary outcome was either restenosis detected by new coronary angiography or angina with myocardial ischemia at the territory of the stented coronary artery. Secondary outcomes were angina without demonstrable myocardial ischemia, acute coronary syndrome or all-cause death. Results 37 patients were followed for 1 year. The median EPC count before PCI was 320 cells/mcl and after PCI 286 cells/mcl. A decrease of EPC count was found in 65% of the patients, while 35% displayed an increase. Primary outcomes occurred in 10.8% and the secondary in 37.8% of the patients. Despite a higher level of EPC before (402 cell/mcl) and after PCI (383 cell/mcl) in patients with the secondary outcomes, there was no significant association between EPC and cardiovascular events. Electronic supplementary material The online version of this article (10.1186/s13104-018-3401-y) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Fernando S Montenegro
- Instituto Nacional de Cardiologia, Rua da Laranjeiras, 374-Laranjeiras, Rio de Janeiro, 2224006, Brazil.
| | - Marcelo Correia
- Instituto Nacional de Cardiologia, Rua da Laranjeiras, 374-Laranjeiras, Rio de Janeiro, 2224006, Brazil
| | - Fabiana Muccillo
- Instituto Nacional de Cardiologia, Rua da Laranjeiras, 374-Laranjeiras, Rio de Janeiro, 2224006, Brazil
| | - Christina G Souza E Silva
- Instituto Nacional de Cardiologia, Rua da Laranjeiras, 374-Laranjeiras, Rio de Janeiro, 2224006, Brazil
| | - Andrea De Lorenzo
- Instituto Nacional de Cardiologia, Rua da Laranjeiras, 374-Laranjeiras, Rio de Janeiro, 2224006, Brazil
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46
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Lopez-Moya M, Melgar-Lesmes P, Kolandaivelu K, de la Torre Hernández JM, Edelman ER, Balcells M. Optimizing Glutaraldehyde-Fixed Tissue Heart Valves with Chondroitin Sulfate Hydrogel for Endothelialization and Shielding against Deterioration. Biomacromolecules 2018. [PMID: 29539266 DOI: 10.1021/acs.biomac.8b00077] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Porcine glutaraldehyde-fixed pericardium is widely used to replace human heart valves. Despite the stabilizing effects of glutaraldehyde fixation, the lack of endothelialization and the occurrence of immune reactions contribute to calcification and structural valve deterioration, which is particularly significant in young patients, in whom valve longevity is crucial. This report shows an optimization system with which to enhance endothelialization of fixed pericardium to mimic the biological function of a native heart valve. The glutaraldehyde detoxification, together with the application of a biodegradable methacrylated chondroitin sulfate hydrogel, reduces aldehydes cytotoxicity, increases the migration and proliferation of endothelial cells and the recruitment of endothelial cell progenitors, and confers thromboresistance in fixed pericardium. The combination of glutaraldehyde detoxification and a coating with chondroitin sulfate hydrogel promotes in situ mechanisms of endothelialization in fixed pericardium. We offer a new solution for improving the long life of bioprosthetic valves and exploring the means of making valves suitable to endothelialization.
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Affiliation(s)
- Mario Lopez-Moya
- Massachusetts Institute of Technology, Institute for Medical Engineering and Science , Cambridge , Massachusetts 02139 , United States.,Bioengineering Department , Institut Químic de Sarrià, Ramon Llull Univ , Barcelona 08017 , Spain
| | - Pedro Melgar-Lesmes
- Massachusetts Institute of Technology, Institute for Medical Engineering and Science , Cambridge , Massachusetts 02139 , United States.,Department of Biomedicine , Fundació Clínic per a la Recerca Biomèdica, University of Barcelona , Barcelona 08036 , Spain
| | - Kumaran Kolandaivelu
- Massachusetts Institute of Technology, Institute for Medical Engineering and Science , Cambridge , Massachusetts 02139 , United States.,Cardiovascular Division , Brigham and Women's Hospital and Harvard Medical School , Boston , Massachusetts 02115 , United States
| | | | - Elazer R Edelman
- Massachusetts Institute of Technology, Institute for Medical Engineering and Science , Cambridge , Massachusetts 02139 , United States.,Cardiovascular Division , Brigham and Women's Hospital and Harvard Medical School , Boston , Massachusetts 02115 , United States
| | - Mercedes Balcells
- Massachusetts Institute of Technology, Institute for Medical Engineering and Science , Cambridge , Massachusetts 02139 , United States.,Bioengineering Department , Institut Químic de Sarrià, Ramon Llull Univ , Barcelona 08017 , Spain
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47
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Aziz A, Haywood NJ, Cordell PA, Smith J, Yuldasheva NY, Sengupta A, Ali N, Mercer BN, Mughal RS, Riches K, Cubbon RM, Porter KE, Kearney MT, Wheatcroft SB. Insulinlike Growth Factor-Binding Protein-1 Improves Vascular Endothelial Repair in Male Mice in the Setting of Insulin Resistance. Endocrinology 2018; 159:696-709. [PMID: 29186427 PMCID: PMC5776633 DOI: 10.1210/en.2017-00572] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Accepted: 11/21/2017] [Indexed: 12/19/2022]
Abstract
Insulin resistance is associated with impaired endothelial regeneration in response to mechanical injury. We recently demonstrated that insulinlike growth factor-binding protein-1 (IGFBP1) ameliorated insulin resistance and increased nitric oxide generation in the endothelium. In this study, we hypothesized that IGFBP1 would improve endothelial regeneration and restore endothelial reparative functions in the setting of insulin resistance. In male mice heterozygous for deletion of insulin receptors, endothelial regeneration after femoral artery wire injury was enhanced by transgenic expression of human IGFBP1 (hIGFBP1). This was not explained by altered abundance of circulating myeloid angiogenic cells. Incubation of human endothelial cells with hIGFBP1 increased integrin expression and enhanced their ability to adhere to and repopulate denuded human saphenous vein ex vivo. In vitro, induction of insulin resistance by tumor necrosis factor α (TNFα) significantly inhibited endothelial cell migration and proliferation. Coincubation with hIGFBP1 restored endothelial migratory and proliferative capacity. At the molecular level, hIGFBP1 induced phosphorylation of focal adhesion kinase, activated RhoA and modulated TNFα-induced actin fiber anisotropy. Collectively, the effects of hIGFBP1 on endothelial cell responses and acceleration of endothelial regeneration in mice indicate that manipulating IGFBP1 could be exploited as a putative strategy to improve endothelial repair in the setting of insulin resistance.
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Affiliation(s)
- Amir Aziz
- Leeds Institute of Cardiovascular and Metabolic Medicine and Multidisciplinary Cardiovascular Research Centre, University of Leeds, Leeds, United Kingdom
| | - Natalie J Haywood
- Leeds Institute of Cardiovascular and Metabolic Medicine and Multidisciplinary Cardiovascular Research Centre, University of Leeds, Leeds, United Kingdom
| | - Paul A Cordell
- Leeds Institute of Cardiovascular and Metabolic Medicine and Multidisciplinary Cardiovascular Research Centre, University of Leeds, Leeds, United Kingdom
| | - Jess Smith
- Leeds Institute of Cardiovascular and Metabolic Medicine and Multidisciplinary Cardiovascular Research Centre, University of Leeds, Leeds, United Kingdom
| | - Nadira Y Yuldasheva
- Leeds Institute of Cardiovascular and Metabolic Medicine and Multidisciplinary Cardiovascular Research Centre, University of Leeds, Leeds, United Kingdom
| | - Anshuman Sengupta
- Leeds Institute of Cardiovascular and Metabolic Medicine and Multidisciplinary Cardiovascular Research Centre, University of Leeds, Leeds, United Kingdom
| | - Noman Ali
- Leeds Institute of Cardiovascular and Metabolic Medicine and Multidisciplinary Cardiovascular Research Centre, University of Leeds, Leeds, United Kingdom
| | - Ben N Mercer
- Leeds Institute of Cardiovascular and Metabolic Medicine and Multidisciplinary Cardiovascular Research Centre, University of Leeds, Leeds, United Kingdom
| | - Romana S Mughal
- Leeds Institute of Cardiovascular and Metabolic Medicine and Multidisciplinary Cardiovascular Research Centre, University of Leeds, Leeds, United Kingdom
| | - Kirsten Riches
- School of Chemistry and Biosciences, University of Bradford, Bradford, United Kingdom
| | - Richard M Cubbon
- Leeds Institute of Cardiovascular and Metabolic Medicine and Multidisciplinary Cardiovascular Research Centre, University of Leeds, Leeds, United Kingdom
| | - Karen E Porter
- Leeds Institute of Cardiovascular and Metabolic Medicine and Multidisciplinary Cardiovascular Research Centre, University of Leeds, Leeds, United Kingdom
| | - Mark T Kearney
- Leeds Institute of Cardiovascular and Metabolic Medicine and Multidisciplinary Cardiovascular Research Centre, University of Leeds, Leeds, United Kingdom
| | - Stephen B Wheatcroft
- Leeds Institute of Cardiovascular and Metabolic Medicine and Multidisciplinary Cardiovascular Research Centre, University of Leeds, Leeds, United Kingdom
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48
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Vestergaard LP, Benhassen L, Modrau IS, de Paoli F, Boedtkjer E. Increased Contractile Function of Human Saphenous Vein Grafts Harvested by "No-Touch" Technique. Front Physiol 2018; 8:1135. [PMID: 29379447 PMCID: PMC5770882 DOI: 10.3389/fphys.2017.01135] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Accepted: 12/22/2017] [Indexed: 01/21/2023] Open
Abstract
Saphenous vein grafts are the most common conduits used for coronary artery bypass grafting (CABG); however, no more than 60% of vein grafts remain open after 10 years and graft failure is associated with poor clinical outcome. The “no-touch” harvesting technique—where a sheet of perivascular tissue is retained around the vein—improves graft patency to over 80% after 16 years of follow-up, but the mechanism for the improved patency rate is unclear. In this study, we investigated acute functional differences between vein grafts harvested conventionally and by “no-touch” technique and explored the importance of perivascular tissue for reducing surgical trauma, minimizing excessive distension, and releasing vasoactive paracrine factors. Segments of human saphenous veins were obtained from CABG surgery and their functional properties investigated by isometric and isobaric myography. We found a broad diameter-tension relationship for human saphenous veins, with peak capacity for active tension development at diameters corresponding to transmural pressures around 60 mmHg. Across the investigated transmural pressure range between 10 and 120 mmHg, maximal tension development was higher for “no-touch” compared to conventionally harvested saphenous veins. Contractile responses to serotonin, noradrenaline, and depolarization induced with elevated extracellular [K+] were significantly larger for saphenous veins harvested by “no-touch” compared to conventional technique. Conventional vein grafts are routinely pressurized manually in order to test for leaks; however, avoiding this distension procedure did not change the acute contractile function of the conventionally excised saphenous veins. In contrast, even though surgical removal of perivascular tissue during conventional harvesting was associated with a substantial decrease in force development, removal of perivascular tissue by careful dissection under a stereomicroscope only marginally affected contractile responses of veins harvested by “no-touch” technique. In conclusion, we show that saphenous veins harvested by “no-touch” technique have greater contractile capacity than veins harvested by conventional technique. The different capacity for smooth muscle contraction is not due to vasoactive substances released by the perivascular tissue. Instead, we propose that the larger tension development of saphenous veins harvested by “no-touch” technique reflects reduced surgical damage, which may have long-term consequences that contribute to the superior graft patency.
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Affiliation(s)
| | - Leila Benhassen
- Department of Biomedicine, Aarhus University, Aarhus, Denmark.,Department of Cardiothoracic Surgery, Aarhus University Hospital, Aarhus, Denmark
| | - Ivy S Modrau
- Department of Cardiothoracic Surgery, Aarhus University Hospital, Aarhus, Denmark
| | - Frank de Paoli
- Department of Biomedicine, Aarhus University, Aarhus, Denmark.,Department of Cardiothoracic Surgery, Aarhus University Hospital, Aarhus, Denmark
| | - Ebbe Boedtkjer
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
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49
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Alexander GC, Hwang PTJ, Chen J, Kim J, Brott BC, Yoon YS, Jun HW. Nanomatrix Coated Stent Enhances Endothelialization but Reduces Platelet, Smooth Muscle Cell, and Monocyte Adhesion under Physiologic Conditions. ACS Biomater Sci Eng 2017; 4:107-115. [PMID: 31538110 DOI: 10.1021/acsbiomaterials.7b00676] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Cardiovascular disease is presently the number one cause of death worldwide. Current stents used to treat cardiovascular disease have a litany of unacceptable shortcomings: adverse clinical events including restenosis, neointimal hyperplasia, thrombosis, inflammation, and poor re-endothelialization. We have developed a biocompatible, multifunctional, peptide amphiphile-based nanomatrix coating for stents. In this study, we evaluated the ability of the nanomatrix coated stent to simultaneously address the issues facing current stents under physiological flow conditions in vitro. We found that the nanomatrix coated stent could increase endothelial cell migration, adhesion, and proliferation (potential for re-endothelialization), discourage smooth muscle cell migration and adhesion (potential to reduce neointimal hyperplasia and restenosis), and decrease both platelet activation and adhesion (potential to prevent thrombosis) as well as monocyte adhesion (potential to attenuate inflammatory responses) under physiological flow conditions in vitro. These promising results demonstrate the potential clinical utility of this nanomatrix stent coating, and highlight the importance of biocompatibility, multifunctionality, and bioactivity in cardiovascular device design.
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Affiliation(s)
- G C Alexander
- Department of Biomedical Engineering, University of Alabama at Birmingham, 806 Shelby Building, 1825 University Boulevard, Birmingham, Alabama 35294, United States
| | - P T J Hwang
- Department of Biomedical Engineering, University of Alabama at Birmingham, 806 Shelby Building, 1825 University Boulevard, Birmingham, Alabama 35294, United States
| | - J Chen
- Department of Biomedical Engineering, University of Alabama at Birmingham, 806 Shelby Building, 1825 University Boulevard, Birmingham, Alabama 35294, United States
| | - J Kim
- Department of Medicine, Division of Endocrinology, Diabetes and Metabolism, University of Alabama at Birmingham, 806 Shelby Building, 1825 University Boulevard, Birmingham, Alabama 35294, United States
| | - B C Brott
- School of Medicine, Division of Cardiology, University of Alabama at Birmingham, 806 Shelby Building, 1825 University Boulevard, Birmingham, Alabama 35294, United States
| | - Y S Yoon
- School of Medicine, Division of Cardiology, Emory University, Atlanta, Georgia 30322, United States.,Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul 03722, Korea
| | - H-W Jun
- Department of Biomedical Engineering, University of Alabama at Birmingham, 806 Shelby Building, 1825 University Boulevard, Birmingham, Alabama 35294, United States
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50
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Upregulation of miR-126-3p promotes human saphenous vein endothelial cell proliferation in vitro and prevents vein graft neointimal formation ex vivo and in vivo. Oncotarget 2017; 8:106790-106806. [PMID: 29290989 PMCID: PMC5739774 DOI: 10.18632/oncotarget.22365] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Accepted: 08/27/2017] [Indexed: 11/25/2022] Open
Abstract
Poor long-term patency of vein grafts remains an obstacle in coronary artery bypass grafting (CABG) surgery using an autologous saphenous vein graft. Recent studies have revealed that miR-126-3p promotes vascular integrity and angiogenesis. We aimed to identify the role of miR-126-3p in the setting of vein graft disease and investigate the value of miR-126-3p agomir as a future gene therapy in vein graft failure. Expression analysis of circulating miR-126-3p in plasma from CABG patients established the basic clues that miR-126-3p participates in CABG. The in vitro results indicated that elevated miR-126-3p expression significantly improved proliferation and migration in human saphenous vein endothelial cells (HSVECs) by targeting sprouty-related protein-1 (SPRED-1) and phosphatidylinositol-3-kinase regulatory subunit 2 (PIK3R2), but not in human saphenous vein smooth muscle cells (HSVSMCs). Moreover, the therapeutic potential of miR-126-3p agomir was demonstrated in cultured human saphenous vein (HSV) ex vivo. Finally, local delivery of miR-126-3p agomir was confirmed to enhance reendothelialization and attenuate neointimal formation in a rat vein arterialization model. In conclusion, we provide evidence that upregulation of miR-126-3p by agomir possesses potential clinical value in the prevention and treatment of autologous vein graft restenosis in CABG.
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