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Behrangzade A, Simon BR, Wagner WR, Geest JPV. Optimizing the Porohyperelastic Response of a Layered Compliance Matched Vascular Graft to Promote Luminal Self-Cleaning. J Biomech Eng 2023; 145:021002. [PMID: 36082481 PMCID: PMC9632477 DOI: 10.1115/1.4055563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 08/17/2022] [Indexed: 11/08/2022]
Abstract
Thrombosis and intimal hyperplasia have remained the major failure mechanisms of small-diameter vascular grafts used in bypass procedures. While most efforts to reduce thrombogenicity have used a biochemical surface modification approach, the use of local mechanical phenomena to aid in this goal has received somewhat less attention. In this work, the mechanical, fluid transport, and geometrical properties of a layered and porous vascular graft are optimized within a porohyperelastic finite element framework to maximize self-cleaning via luminal reversal fluid velocity (into the lumen). This is expected to repel platelets as well as inhibit the formation of and/or destabilize adsorbed protein layers thereby reducing thrombogenic potential. A particle swarm optimization algorithm was utilized to maximize luminal reversal fluid velocity while also compliance matching our graft to a target artery (rat aorta). The maximum achievable luminal reversal fluid velocity was approximately 246 μm/s without simultaneously optimizing for host compliance. Simultaneous optimization of reversal flow and compliance resulted in a luminal reversal fluid velocity of 59 μm/s. Results indicate that a thick highly permeable compressible inner layer and a thin low permeability incompressible outer layer promote intraluminal reversal fluid velocity. Future research is needed to determine the feasibility of fabricating such a layered and optimized graft and verify its ability to improve hemocompatibility.
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Affiliation(s)
- Ali Behrangzade
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA 15219
| | - Bruce R. Simon
- Aerospace and Mechanical Engineering, Biomedical Engineering Interdisciplinary Program University of Arizona, Tucson, AZ 85721
| | - William R. Wagner
- Department of Surgery, McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA 15219; Department of Bioengineering, McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA 15219
| | - Jonathan P. Vande Geest
- Department of Bioengineering, McGowan Institute for Regenerative Medicine, Vascular Medicine Institute, University of Pittsburgh, Pittsburgh, PA 15219; Department of Mechanical Engineering and Material Science, McGowan Institute for Regenerative Medicine, Vascular Medicine Institute University of Pittsburgh, Pittsburgh, PA 15219
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Khang MK, Kuriakose AE, Nguyen T, Co CMD, Zhou J, Truong TTD, Nguyen KT, Tang L. Enhanced Endothelial Cell Delivery for Repairing Injured Endothelium via Pretargeting Approach and Bioorthogonal Chemistry. ACS Biomater Sci Eng 2020; 6:6831-6841. [PMID: 33320611 DOI: 10.1021/acsbiomaterials.0c00957] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Arterial wall injury often leads to endothelium cell activation, endothelial detachment, and atherosclerosis plaque formation. While abundant research efforts have been placed on treating the end stages of the disease, no cure has been developed to repair injured and denude endothelium often occurred at an early stage of atherosclerosis. Here, a pretargeting cell delivery strategy using combined injured endothelial targeting nanoparticles and bioorthogonal click chemistry approach was developed to deliver endothelial cells to replenish the injured endothelium via a two-step process. First, nanoparticles bearing glycoprotein 1b α (Gp1bα) proteins and tetrazine (Tz) were fabricated to provide a homogeneous nanoparticle coating on an injured arterial wall via the interactions between Gp1bα and von Willebrand factor (vWF), a ligand that is present on denuded endothelium. Second, transplanted endothelium cells bearing transcyclooctene (TCO) would be quickly immobilized on the surfaces of nanoparticles via TCO:Tz reactions. In vitro binding studies under both static and flow conditions confirmed that our novel Tz-labeled Gp1bα-conjugated poly(lactic-co-glycolic acid) (PLGA) nanoparticles can successfully pretargeted toward the injured site and support rapid adhesion of endothelial cells from the circulation. Ex vivo results also confirm that such an approach is highly efficient in mediating the local delivery of endothelial cells at the sites of arterial injury. The results support that this pretargeting cell delivery approach may be used for repairing injured endothelium in situ at its early stage.
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Affiliation(s)
- Min Kyung Khang
- Department of Bioengineering, University of Texas at Arlington, P.O. Box 19138, Arlington, Texas 76010, United States.,Department of Chemistry and Biochemistry, University of Texas at Arlington, Arlington, Texas 76010, United States
| | - Aneetta Elizabeth Kuriakose
- Department of Bioengineering, University of Texas at Arlington, P.O. Box 19138, Arlington, Texas 76010, United States
| | - Tam Nguyen
- Department of Bioengineering, University of Texas at Arlington, P.O. Box 19138, Arlington, Texas 76010, United States
| | - Cynthia My-Dung Co
- Department of Bioengineering, University of Texas at Arlington, P.O. Box 19138, Arlington, Texas 76010, United States
| | - Jun Zhou
- Department of Bioengineering, University of Texas at Arlington, P.O. Box 19138, Arlington, Texas 76010, United States
| | - Thuy Thi Dang Truong
- Department of Bioengineering, University of Texas at Arlington, P.O. Box 19138, Arlington, Texas 76010, United States
| | - Kytai Truong Nguyen
- Department of Bioengineering, University of Texas at Arlington, P.O. Box 19138, Arlington, Texas 76010, United States
| | - Liping Tang
- Department of Bioengineering, University of Texas at Arlington, P.O. Box 19138, Arlington, Texas 76010, United States
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3
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Arno MC. Engineering the Mammalian Cell Surface with Synthetic Polymers: Strategies and Applications. Macromol Rapid Commun 2020; 41:e2000302. [DOI: 10.1002/marc.202000302] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 07/27/2020] [Indexed: 12/19/2022]
Affiliation(s)
- Maria C. Arno
- School of Chemistry University of Birmingham Edgbaston Birmingham B15 2TT UK
- Institute of Cancer and Genomic Sciences University of Birmingham Edgbaston Birmingham B15 2TT UK
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Bukka M, Rednam PJ, Sinha M. Drug-eluting balloon: design, technology and clinical aspects. ACTA ACUST UNITED AC 2018; 13:032001. [PMID: 29227279 DOI: 10.1088/1748-605x/aaa0aa] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A drug-eluting balloon is a non-stent technology in which the effective homogenous delivery of anti-proliferative drugs is processed by the vessel wall through an inflated balloon. This is done to restore luminal vascularity in order to treat atherosclerosis, in-stent restenosis and reduce the risk of late thrombosis without implanting a permanent foreign object. The balloon technology relies on the concept of targeted drug delivery, which helps in the rapid healing of the vessel wall and prevents the proliferation of smooth muscle cells. Several drug eluting devices in the form of coated balloons are currently in clinical use, namely DIOR®, PACCOCATH®, SeQuent®Please and IN.PACT™. The device varies in terms of the material used for making the balloon, the coating techniques, the choice of coated drug and the release pattern of the drug at the site. This review gives an insight into the evolution, rationale and comparison of the marketed drug-eluting balloons. Here, different coating techniques have been analysed for the application and critical analysis of available DEB technologies, and a technical comparison has been done.
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Affiliation(s)
- Meenasree Bukka
- Department of Medical Devices, National Institute of Pharmaceutical Education and Research, Ahmedabad (NIPER-A) Palaj, Opp. Air Force Station, Gandhinagar-382355, Gujarat, India
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Abbina S, Siren EMJ, Moon H, Kizhakkedathu JN. Surface Engineering for Cell-Based Therapies: Techniques for Manipulating Mammalian Cell Surfaces. ACS Biomater Sci Eng 2017; 4:3658-3677. [DOI: 10.1021/acsbiomaterials.7b00514] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Lih E, Choi SG, Ahn DJ, Joung YK, Han DK. Optimal conjugation of catechol group onto hyaluronic acid in coronary stent substrate coating for the prevention of restenosis. J Tissue Eng 2016; 7:2041731416683745. [PMID: 28228930 PMCID: PMC5308429 DOI: 10.1177/2041731416683745] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2016] [Accepted: 11/21/2016] [Indexed: 01/25/2023] Open
Abstract
Although endovascular stenting has been used as an interventional therapy to treat cardio- and cerebro-vascular diseases, it is associated with recurrent vascular diseases following stent thrombosis and in-stent restenosis. In this study, a metallic stent was coated with dopamine-conjugated hyaluronic acid with different ratios of catechol group to improve hemocompatibility and re-endothelialization. Especially, we were interested in how much amount of catechol group is appropriate for the above-mentioned purposes. Therefore, a series of dopamine-conjugated hyaluronic acid conjugates with different ratios of catechol group were synthesized via a carbodiimide coupling reaction. Dopamine-conjugated hyaluronic acid conjugates were characterized with 1H-nuclear magnetic resonance and Fourier transform infrared spectroscopy, and the amount of catechol group in dopamine-conjugated hyaluronic acid was measured by ultraviolet spectrometer. Co-Cr substrates were polished and coated with various dopamine-conjugated hyaluronic acid conjugates under pH 8.5. Dopamine-conjugated hyaluronic acid amounts on the substrate were quantified by micro-bicinchoninic acid assay. Surface characteristics of dopamine-conjugated hyaluronic-acid-coated Co-Cr were evaluated by water contact angle, scanning electron microscopy, and atomic force microscopy. The hemocompatibility of the surface-modified substrates was assessed by protein adsorption and platelet adhesion tests. Adhesion and activation of platelets were confirmed with scanning electron microscopy and lactate dehydrogenase assay. Human umbilical vein endothelial cells were cultured on the substrates, and the viability, adhesion, and proliferation were investigated through cell counting kit-8 assay and fluorescent images. Obtained results demonstrated that optimal amounts of catechol group (100 µmol) in the dopamine-conjugated hyaluronic acid existed in terms of various properties such as hemocompatibility and cellular responses.
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Affiliation(s)
- Eugene Lih
- Center for Biomaterials, Korea Institute of Science and Technology, Seoul, Korea
| | - Seul Gi Choi
- Center for Biomaterials, Korea Institute of Science and Technology, Seoul, Korea
- Department of Biomicrosystem Technology, Korea University, Seoul, Korea
- Department of Chemical & Biological Engineering, Korea University, Seoul, Korea
| | - Dong June Ahn
- Department of Biomicrosystem Technology, Korea University, Seoul, Korea
- Department of Chemical & Biological Engineering, Korea University, Seoul, Korea
- KU-KIST Graduate School of Converging Science and Engineering, Korea University, Seoul, Korea
| | - Yoon Ki Joung
- Center for Biomaterials, Korea Institute of Science and Technology, Seoul, Korea
- Department of Biomedical Engineering, Korea University of Science and Technology, Daejeon, Korea
| | - Dong Keun Han
- Center for Biomaterials, Korea Institute of Science and Technology, Seoul, Korea
- Department of Biomedical Engineering, Korea University of Science and Technology, Daejeon, Korea
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Liu Z, Shi C, Li Y, Song Y, Xu Q. Fluorescent genipin cross-linked REDV-conjugated polymeric microbubbles for human vascular endothelial cell (HVEC) targeting. RSC Adv 2016. [DOI: 10.1039/c6ra00992a] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Fluorescent polymeric microbubbles conjugated with REDV peptides were fabricated to achieve HVECs active targeting. The degradation, cytotoxicity and targeting features endowed them potential candidates in early molecular diagnosis for cardiovascular diseases.
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Affiliation(s)
- Zhe Liu
- Wenzhou Institute of Biomaterials and Engineering
- Wenzhou Medical University
- Wenzhou 325011
- China
| | - Changcan Shi
- Wenzhou Institute of Biomaterials and Engineering
- Wenzhou Medical University
- Wenzhou 325011
- China
| | - Yihong Li
- Wenzhou Institute of Biomaterials and Engineering
- Wenzhou Medical University
- Wenzhou 325011
- China
| | - Yuanhui Song
- Wenzhou Institute of Biomaterials and Engineering
- Wenzhou Medical University
- Wenzhou 325011
- China
| | - Qien Xu
- Wenzhou Institute of Biomaterials and Engineering
- Wenzhou Medical University
- Wenzhou 325011
- China
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Su LC, Xu H, Tran RT, Tsai YT, Tang L, Banerjee S, Yang J, Nguyen KT. In situ re-endothelialization via multifunctional nanoscaffolds. ACS NANO 2014; 8:10826-36. [PMID: 25222570 PMCID: PMC4212783 DOI: 10.1021/nn504636n] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2014] [Accepted: 09/11/2014] [Indexed: 05/25/2023]
Abstract
The endothelium monolayer lining in the luminal side of blood vessels provides critical antithrombotic functions. Damage to these cells will expose a highly thrombogenic subendothelium, which leads to pathological vascular changes. Using combined tissue engineering and ligand-receptor targeting strategy, we developed a biodegradable urethane-doped polyester (UPE) multifunctional targeting nanoparticle (MTN) scaffold system with dual ligands: (1) glycoprotein 1b (GP1b) to target the injured arterial endothelium and subendothelium and (2) anti-CD34 antibodies to capture endothelial progenitor cells for endothelium regeneration. The fabricated spherical MTNs of 400 nm were found to be cytocompatible and hemocompatible. Both the in vitro and ex vivo targeting of these nanoscaffolds not only showed binding specificity of MTNs onto the von Willebrand factor -coated surfaces that simulate the injured arterial walls but also competed with platelets for binding onto these injured sites. Further in vivo study has revealed that a single delivery of MTNs upon vascular injury reduced neointimal hyperplasia by 57% while increased endothelium regeneration by ∼ 60% in 21 days. These results support the promise of using MTN nanoscaffolds for treating vascular injury in situ.
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Affiliation(s)
- Lee-Chun Su
- Department of Bioengineering, University of Texas at Arlington, Arlington, Texas 76010, United States
| | - Hao Xu
- Department of Internal Medicine, University of Texas Southwestern Medical Center at Dallas, Dallas, Texas 75390, United States
| | - Richard T. Tran
- Department of Biomedical Engineering, Materials Research Institute, The Huck Institutes of The Life Sciences, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Yi-Ting Tsai
- Department of Bioengineering, University of Texas at Arlington, Arlington, Texas 76010, United States
| | - Liping Tang
- Department of Bioengineering, University of Texas at Arlington, Arlington, Texas 76010, United States
| | - Subhash Banerjee
- Department of Internal Medicine, University of Texas Southwestern Medical Center at Dallas, Dallas, Texas 75390, United States
| | - Jian Yang
- Department of Biomedical Engineering, Materials Research Institute, The Huck Institutes of The Life Sciences, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Kytai T. Nguyen
- Department of Bioengineering, University of Texas at Arlington, Arlington, Texas 76010, United States
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Scott R, Panitch A. Macromolecular approaches to prevent thrombosis and intimal hyperplasia following percutaneous coronary intervention. Biomacromolecules 2014; 15:2825-32. [PMID: 24964369 PMCID: PMC4130236 DOI: 10.1021/bm5007757] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2014] [Revised: 06/18/2014] [Indexed: 01/29/2023]
Abstract
Cardiovascular disease remains one of the largest contributors to death worldwide. Improvements in cardiovascular technology leading to the current generation of drug-eluting stents, bioresorbable stents, and drug-eluting balloons, coupled with advances in antirestenotic therapeutics developed by pharmaceutical community, have had a profound impact on quality of life and longevity. However, these procedures and devices contribute to both short- and long-term complications. Thus, room for improvement and development of new, alternative strategies exists. Two major approaches have been investigated to improve outcomes following percutaneous coronary intervention including perivascular delivery and luminal paving. For both approaches, polymers play a major role as controlled research vehicles, carriers for cells, and antithrombotic coatings. With improvements in catheter delivery devices and increases in our understanding of the biology of healthy and diseased vessels, the time is ripe for development of novel macromolecular coatings that can protect the vessel lumen following balloon angioplasty and promote healthy vascular healing.
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Affiliation(s)
- Rebecca
A. Scott
- Weldon
School of Biomedical
Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Alyssa Panitch
- Weldon
School of Biomedical
Engineering, Purdue University, West Lafayette, Indiana 47907, United States
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Seedial SM, Ghosh S, Saunders RS, Suwanabol PA, Shi X, Liu B, Kent KC. Local drug delivery to prevent restenosis. J Vasc Surg 2013; 57:1403-14. [PMID: 23601595 DOI: 10.1016/j.jvs.2012.12.069] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2012] [Revised: 12/20/2012] [Accepted: 12/22/2012] [Indexed: 10/26/2022]
Abstract
INTRODUCTION Despite significant advances in vascular biology, bioengineering, and pharmacology, restenosis remains a limitation to the overall efficacy of vascular reconstructions, both percutaneous and open. Although the pathophysiology of intimal hyperplasia is complex, a number of drugs and molecular tools have been identified that can prevent restenosis. Moreover, the focal nature of this process lends itself to treatment with local drug administration. This article provides a broad overview of current and future techniques for local drug delivery that have been developed to prevent restenosis after vascular interventions. METHODS A systematic electronic literature search using PubMed was performed for all accessible published articles through September 2012. In an effort to remain current, additional searches were performed for abstracts presented at relevant societal meetings, filed patents, clinical trials, and funded National Institutes of Health awards. RESULTS The efficacy of local drug delivery has been demonstrated in the coronary circulation with the current clinical use of drug-eluting stents. Until recently, however, drug-eluting stents were not found to be efficacious in the peripheral circulation. Further pursuit of intraluminal devices has led to the development of balloon-based technologies, with a recent surge in trials involving drug-eluting balloons. Early data appear encouraging, particularly for treatment of superficial femoral artery lesions, and several devices have recently received the Conformité Européene mark in Europe. Investigators have also explored the periadventitial application of biomaterials containing antirestenotic drugs, an approach that could be particularly useful for surgical bypass or endarterectomy. In the past, systemic drug delivery has been unsuccessful; however, there has been recent exploration of intravenous delivery of drugs designed specifically to target injured or reconstructed arteries. Our review revealed a multitude of additional interesting strategies, including >65 new patents issued during the past 2 years for approaches to local drug delivery focused on preventing restenosis. CONCLUSIONS Restenosis after intraluminal or open vascular reconstruction remains an important clinical problem. Success in the coronary circulation has not translated into solutions for the peripheral arteries. However, our literature review reveals a number of promising approaches, including drug-eluting balloons, periadventitial drug delivery, and targeted systemic therapies. These and other innovations suggest that the future is bright and that a solution for preventing restenosis in peripheral vessels will soon be at hand.
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Muthiah M, Park IK, Cho CS. Surface modification of iron oxide nanoparticles by biocompatible polymers for tissue imaging and targeting. Biotechnol Adv 2013; 31:1224-36. [PMID: 23528431 DOI: 10.1016/j.biotechadv.2013.03.005] [Citation(s) in RCA: 108] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2012] [Revised: 02/19/2013] [Accepted: 03/11/2013] [Indexed: 11/25/2022]
Abstract
Superparamagnetic iron oxide nanoparticles (SPIONs) are excellent MR contrast agents when coated with biocompatible polymers such as hydrophilic synthetic polymers, proteins, polysaccharides, and lipids, which improve their stability and biocompatibility and reduce their aggregation. Various biocompatible materials, coated or conjugated with targeting moieties such as galactose, mannose, folic acid, antibodies and RGD, have been applied to SPION surfaces to provide tissue specificity to hepatocytes, macrophages, and tumor regions in order to reduce non-specific uptake and improve biocompatibility. This review discusses the recent progress in the development of biocompatible and hydrophilic polymers for improving stability of SPIONs and describes the carbohydrates based biocompatible materials that are providing SPIONs with cell/tissue specificity as ligands.
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Affiliation(s)
- Muthunarayanan Muthiah
- Department of Biomedical Sciences and Center for Biomedical Human Resources (BK-21 project), Chonnam National University Medical School, Gwangju 501-757, South Korea; Clinical Vaccine R&D Center, Chonnam National University Hwasun Hospital, Jeonnam 519-763, South Korea
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