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Wu H, Chen N, Zheng T, Li L, Hu M, Qin Y, Guo G, Yang L, Wang Y. A strategy for mechanically integrating robust hydrogel-tissue hybrid to promote the anti-calcification and endothelialization of bioprosthetic heart valve. Regen Biomater 2024; 11:rbae003. [PMID: 38414796 PMCID: PMC10898858 DOI: 10.1093/rb/rbae003] [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: 12/27/2023] [Accepted: 01/09/2024] [Indexed: 02/29/2024] Open
Abstract
Bioprosthetic heart valve (BHV) replacement has been the predominant treatment for severe heart valve diseases over decades. Most clinically available BHVs are crosslinked by glutaraldehyde (GLUT), while the high toxicity of residual GLUT could initiate calcification, severe thrombosis, and delayed endothelialization. Here, we construed a mechanically integrating robust hydrogel-tissue hybrid to improve the performance of BHVs. In particular, recombinant humanized collagen type III (rhCOLIII), which was precisely customized with anti-coagulant and pro-endothelialization bioactivity, was first incorporated into the polyvinyl alcohol (PVA)-based hydrogel via hydrogen bond interactions. Then, tannic acid was introduced to enhance the mechanical performance of PVA-based hydrogel and interfacial bonding between the hydrogel layer and bio-derived tissue due to the strong affinity for a wide range of substrates. In vitro and in vivo experimental results confirmed that the GLUT-crosslinked BHVs modified by the robust PVA-based hydrogel embedded rhCOLIII and TA possessed long-term anti-coagulant, accelerated endothelialization, mild inflammatory response and anti-calcification properties. Therefore, our mechanically integrating robust hydrogel-tissue hybrid strategy showed the potential to enhance the service function and prolong the service life of the BHVs after implantation.
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Affiliation(s)
- Haoshuang Wu
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610065, China
| | - Nuoya Chen
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610065, China
| | - Tiantian Zheng
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610065, China
| | - Li Li
- Institute of Clinical Pathology, West China Hospital of Sichuan University, Chengdu 610041, China
| | - Mengyue Hu
- College of Polymer Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Yumei Qin
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610065, China
| | - Gaoyang Guo
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610065, China
| | - Li Yang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610065, China
| | - Yunbing Wang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610065, China
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2
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Chen J, Zhang D, Wu LP, Zhao M. Current Strategies for Engineered Vascular Grafts and Vascularized Tissue Engineering. Polymers (Basel) 2023; 15:polym15092015. [PMID: 37177162 PMCID: PMC10181238 DOI: 10.3390/polym15092015] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 04/21/2023] [Accepted: 04/21/2023] [Indexed: 05/15/2023] Open
Abstract
Blood vessels not only transport oxygen and nutrients to each organ, but also play an important role in the regulation of tissue regeneration. Impaired or occluded vessels can result in ischemia, tissue necrosis, or even life-threatening events. Bioengineered vascular grafts have become a promising alternative treatment for damaged or occlusive vessels. Large-scale tubular grafts, which can match arteries, arterioles, and venules, as well as meso- and microscale vasculature to alleviate ischemia or prevascularized engineered tissues, have been developed. In this review, materials and techniques for engineering tubular scaffolds and vasculature at all levels are discussed. Examples of vascularized tissue engineering in bone, peripheral nerves, and the heart are also provided. Finally, the current challenges are discussed and the perspectives on future developments in biofunctional engineered vessels are delineated.
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Affiliation(s)
- Jun Chen
- Department of Organ Transplantation, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China
- Center for Chemical Biology and Drug Discovery, Laboratory of Computational Biomedicine, Guangzhou Institute of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
| | - Di Zhang
- Center for Chemical Biology and Drug Discovery, Laboratory of Computational Biomedicine, Guangzhou Institute of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
| | - Lin-Ping Wu
- Center for Chemical Biology and Drug Discovery, Laboratory of Computational Biomedicine, Guangzhou Institute of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
| | - Ming Zhao
- Department of Organ Transplantation, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China
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3
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Biomimetic and Bioactive Small Diameter Tubular Scaffolds for Vascular Tissue Engineering. Biomimetics (Basel) 2022; 7:biomimetics7040199. [PMID: 36412727 PMCID: PMC9680506 DOI: 10.3390/biomimetics7040199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 11/03/2022] [Accepted: 11/07/2022] [Indexed: 11/16/2022] Open
Abstract
The present work aimed at the production and characterization of small caliber biomimetic and bioactive tubular scaffolds, which are able to favor the endothelialization process, and therefore potentially be suitable for vascular tissue engineering. The tubular scaffolds were produced using a specially designed mold, starting from a gelatin/gellan/elastin (GGE) blend, selected to mimic the composition of the extracellular matrix of native blood vessels. GGE scaffolds were obtained through freeze-drying and subsequent cross-linking. To obtain systems capable of promoting endothelization, the scaffolds were functionalized using two different bioactive peptides, Gly-Arg-Gly-Asp-Ser-Pro (GRGSDP) and Arg-Glu-Asp-Val (REDV). A complete physicochemical, mechanical, functional, and biological characterization of the developed scaffolds was performed. GGE scaffolds showed a good porosity, which could promote cell infiltration and proliferation and a dense external surface, which could avoid bleeding. Moreover, developed scaffolds showed good hydrophilicity, an elastic behavior similar to natural vessels, suitability for sterilization by an ISO accepted treatment, and an adequate suture retention strength. In vitro cell culture tests showed no cytotoxic activity against 3T3 fibroblasts. The functionalization with the REDV peptide favored the adhesion and growth of endothelial cells, while GRGDSP-modified scaffolds represented a better substrate for fibroblasts.
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Small Diameter Cell-Free Tissue-Engineered Vascular Grafts: Biomaterials and Manufacture Techniques to Reach Suitable Mechanical Properties. Polymers (Basel) 2022; 14:polym14173440. [PMID: 36080517 PMCID: PMC9460130 DOI: 10.3390/polym14173440] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 07/06/2022] [Accepted: 07/06/2022] [Indexed: 12/25/2022] Open
Abstract
Vascular grafts (VGs) are medical devices intended to replace the function of a blood vessel. Available VGs in the market present low patency rates for small diameter applications setting the VG failure. This event arises from the inadequate response of the cells interacting with the biomaterial in the context of operative conditions generating chronic inflammation and a lack of regenerative signals where stenosis or aneurysms can occur. Tissue Engineered Vascular grafts (TEVGs) aim to induce the regeneration of the native vessel to overcome these limitations. Besides the biochemical stimuli, the biomaterial and the particular micro and macrostructure of the graft will determine the specific behavior under pulsatile pressure. The TEVG must support blood flow withstanding the exerted pressure, allowing the proper compliance required for the biomechanical stimulation needed for regeneration. Although the international standards outline the specific requirements to evaluate vascular grafts, the challenge remains in choosing the proper biomaterial and manufacturing TEVGs with good quality features to perform satisfactorily. In this review, we aim to recognize the best strategies to reach suitable mechanical properties in cell-free TEVGs according to the reported success of different approaches in clinical trials and pre-clinical trials.
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5
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Chen X, Yu T, Kong Q, Kuang D, Xu H, Zhao Z, Yang L, Li G, Fan H, Wang Y. Functional non-glutaraldehyde treated porcine pericardium for anti-coagulation, anti-calcification, and endothelial proliferation bioprosthetic heart valves. JOURNAL OF LEATHER SCIENCE AND ENGINEERING 2022. [DOI: 10.1186/s42825-022-00098-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
AbstractIn the last decade, the number of transcatheter heart valve replacement for severe heart valve disease has increased exponentially. Although the bioprosthetic artificial heart valve (BHV) has similar fluid dynamics performance to the original heart valve compared with mechanical heart valve so that there is no need to take long-term anticoagulant drugs to prevent thromboembolism, transcatheter BHV replacement are still at risk for thrombosis during the first few months according to the clinical data. However, the use of antithrombotic drugs can also increase the risk of bleeding. Therefore, it is particularly important to improve the anticoagulant properties for the BHV itself. In this work, a kind of non-glutaraldehyde cross-linked BHV material with excellent antithrombotic ability has been prepared from carboxylated oxazolidine treated porcine pericardium (consisting of collagen, elastin and glycoprotein) with the further graft of the anticoagulant heparin sodium via hydrophilic modified chitosan. Along with the similar mechanical properties and collagen stability comparable to the glutaraldehyde cross-linked porcine pericardium (PP), these functional non-glutaraldehyde cross-linked PPs exhibit better biocompatibility, promoted endothelial proliferation and superior anti-calcification ability. More importantly, excellent anticoagulant activity can be observed in the hematological experiments in vivo and in vitro. In summary, these excellent performances make these functional non-glutaraldehyde cross-linked PPs great potentialities in the BHV applications.
Graphical abstract
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6
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Koch SE, Verhaegh FLP, Smink S, Mihăilă SM, Bouten C, Smits A. Donor Heterogeneity in the Human Macrophage Response to a Biomaterial under Hyperglycemia in vitro. Tissue Eng Part C Methods 2022; 28:440-456. [PMID: 35658619 DOI: 10.1089/ten.tec.2022.0066] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Macrophages have a commanding role in scaffold-driven in situ tissue regeneration. Depending on their polarization state, macrophages mediate the formation and remodeling of new tissue by secreting growth factors and cytokines. Therefore, successful outcomes of material-driven in situ tissue vascular tissue engineering depends largely on the immuno-regenerative potential of the recipient. A large cohort of patients requiring vascular replacements suffers from systemic multifactorial diseases, like diabetes, which gives rise to a hyperglycemic and aggressive oxidative inflammatory environment that is hypothesized to hamper a well-balanced regenerative process. Here, we aimed to fundamentally explore the effects of hyperglycemia, as one of the hallmarks of diabetes, on the macrophage response to 3D electrospun synthetic biomaterials for in situ tissue engineering, in terms of inflammatory profile and tissue regenerative capacity. To simulate the early phases of the in situ regenerative cascade, we used a bottom-up in vitro approach. Primary human macrophages (n=8 donors) and (myo)fibroblasts in mono- or co-culture were seeded in 2D, as well as in a 3D electrospun resorbable polycaprolactone bisurea (PCL-BU) scaffold and exposed to normoglycemic (5.5 mM glucose), hyperglycemic (25 mM glucose) and osmotic control conditions (5.5 mM glucose, 19.5 mM mannitol). The results showed that macrophage polarization by biochemical stimuli was effective under all glycemic conditions and that the polarization states dictated expression of the receptors SCL2A1 (glucose transporter 1) and CD36 (fatty acid transporter). In 3D, the macrophage response to hyperglycemic conditions was strongly donor-dependent in terms of phenotype, cytokine secretion profile, and metabolic receptor expression. When co-cultured with (myo)fibroblasts, hyperglycemic conditions led to an increased expression of fibrogenic markers (ACTA2, COL1, COL3, IL-1β). Together, these findings show that the hyperglycemic and hyperosmotic conditions may indeed influence the process of macrophage-driven in situ tissue engineering, and that the extent of this is likely to be patient-specific.
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Affiliation(s)
- Suzanne E Koch
- Eindhoven Univeristy of Technology, Department of Biomedical Engineering, Eindhoven, Netherlands;
| | - Franka L P Verhaegh
- Eindhoven Univeristy of Technology, Department of Biomedical Engineering, Eindhoven, Netherlands;
| | - Simone Smink
- Eindhoven Univeristy of Technology, Department of Biomedical Engineering, Eindhoven, Netherlands;
| | - Silvia M Mihăilă
- Utrecht University Department of Pharmaceutical Sciences, 84898, Utrecht, Utrecht, Netherlands;
| | - Carlijn Bouten
- Eindhoven University of Technology, Biomedical Engineering, Eindhoven University of Technology, Department of Biomedical Engineering, P.O.Box 513, Eindhoven, Netherlands, 5600MB.,Netherlands;
| | - Anthal Smits
- Eindhoven Univeristy of Technology, Department of Biomedical Engineering, Den Dolech 2, Gemini-Zuid 3.116, Eindhoven, Netherlands, 5612AZ;
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7
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Chernonosova VS, Laktionov PP. Structural Aspects of Electrospun Scaffolds Intended for Prosthetics of Blood Vessels. Polymers (Basel) 2022; 14:polym14091698. [PMID: 35566866 PMCID: PMC9105676 DOI: 10.3390/polym14091698] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Revised: 04/12/2022] [Accepted: 04/17/2022] [Indexed: 12/28/2022] Open
Abstract
Electrospinning is a popular method used to fabricate small-diameter vascular grafts. However, the importance of structural characteristics of the scaffold determining interaction with endothelial cells and their precursors and blood cells is still not exhaustively clear. This review discusses current research on the significance and impact of scaffold architecture (fiber characteristics, porosity, and surface roughness of material) on interactions between cells and blood with the material. In addition, data about the effects of scaffold topography on cellular behaviour (adhesion, proliferation, and migration) are necessary to improve the rational design of electrospun vascular grafts with a long-term perspective.
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Affiliation(s)
- Vera S. Chernonosova
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch, Russian Academy of Sciences, 630090 Novosibirsk, Russia;
- Meshalkin National Medical Research Center, Ministry of Health of the Russian Federation, 630055 Novosibirsk, Russia
- Correspondence: ; Tel.: +7-(383)-363-51-44
| | - Pavel P. Laktionov
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch, Russian Academy of Sciences, 630090 Novosibirsk, Russia;
- Meshalkin National Medical Research Center, Ministry of Health of the Russian Federation, 630055 Novosibirsk, Russia
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8
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Failure Analysis of TEVG’s II: Late Failure and Entering the Regeneration Pathway. Cells 2022; 11:cells11060939. [PMID: 35326390 PMCID: PMC8946846 DOI: 10.3390/cells11060939] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 02/03/2022] [Accepted: 03/01/2022] [Indexed: 12/21/2022] Open
Abstract
Tissue-engineered vascular grafts (TEVGs) are a promising alternative to treat vascular disease under complex hemodynamic conditions. However, despite efforts from the tissue engineering and regenerative medicine fields, the interactions between the material and the biological and hemodynamic environment are still to be understood, and optimization of the rational design of vascular grafts is an open challenge. This is of special importance as TEVGs not only have to overcome the surgical requirements upon implantation, they also need to withhold the inflammatory response and sustain remodeling of the tissue. This work aims to analyze and evaluate the bio-molecular interactions and hemodynamic phenomena between blood components, cells and materials that have been reported to be related to the failure of the TEVGs during the regeneration process once the initial stages of preimplantation have been resolved, in order to tailor and refine the needed criteria for the optimal design of TEVGs.
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9
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Darie-Niță RN, Râpă M, Frąckowiak S. Special Features of Polyester-Based Materials for Medical Applications. Polymers (Basel) 2022; 14:951. [PMID: 35267774 PMCID: PMC8912343 DOI: 10.3390/polym14050951] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Revised: 02/18/2022] [Accepted: 02/24/2022] [Indexed: 11/16/2022] Open
Abstract
This article presents current possibilities of using polyester-based materials in hard and soft tissue engineering, wound dressings, surgical implants, vascular reconstructive surgery, ophthalmology, and other medical applications. The review summarizes the recent literature on the key features of processing methods and potential suitable combinations of polyester-based materials with improved physicochemical and biological properties that meet the specific requirements for selected medical fields. The polyester materials used in multiresistant infection prevention, including during the COVID-19 pandemic, as well as aspects covering environmental concerns, current risks and limitations, and potential future directions are also addressed. Depending on the different features of polyester types, as well as their specific medical applications, it can be generally estimated that 25-50% polyesters are used in the medical field, while an increase of at least 20% has been achieved since the COVID-19 pandemic started. The remaining percentage is provided by other types of natural or synthetic polymers; i.e., 25% polyolefins in personal protection equipment (PPE).
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Affiliation(s)
- Raluca Nicoleta Darie-Niță
- Physical Chemistry of Polymers Department, Petru Poni Institute of Macromolecular Chemistry, 41A Grigore Ghica Voda Alley, 700487 Iasi, Romania;
| | - Maria Râpă
- Faculty of Materials Science and Engineering, University Politehnica of Bucharest, 313 Splaiul Independentei, 060042 Bucharest, Romania
| | - Stanisław Frąckowiak
- Faculty of Environmental Engineering, University of Science and Technology, 50-013 Wrocław, Poland;
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10
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Feng LA, Shi J, Guo J, Wang S. Recent strategies for improving hemocompatibility and endothelialization of cardiovascular devices and inhibition of intimal hyperplasia. J Mater Chem B 2022; 10:3781-3792. [DOI: 10.1039/d2tb00478j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Cardiovascular diseases have become one of the leading causes of mortality worldwide. Stents and artificial grafts have been used to treat cardiovascular diseases. Thrombosis and restenosis seriously impact clinical outcome...
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11
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Enayati M, Schneider KH, Almeria C, Grasl C, Kaun C, Messner B, Rohringer S, Walter I, Wojta J, Budinsky L, Walpoth BH, Schima H, Kager G, Hallström S, Podesser BK, Bergmeister H. S-nitroso human serum albumin as a nitric oxide donor in drug-eluting vascular grafts: Biofunctionality and preclinical evaluation. Acta Biomater 2021; 134:276-288. [PMID: 34329787 DOI: 10.1016/j.actbio.2021.07.048] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 07/22/2021] [Accepted: 07/22/2021] [Indexed: 11/28/2022]
Abstract
Currently available synthetic small diameter vascular grafts reveal low patency rates due to thrombosis and intimal hyperplasia. Biofunctionalized grafts releasing nitric oxide (NO) in situ may overcome these limitations. In this study, a drug-eluting vascular graft was designed by blending polycaprolactone (PCL) with S-nitroso-human-serum-albumin (S-NO-HSA), a nitric oxide donor with prolonged half-life. PCL-S-NO-HSA grafts and patches were fabricated via electrospinning. The fabrication process was optimized. Patches were characterized in vitro for their morphology, drug release, biomechanics, inflammatory effects, cell proliferation, and expression of adhesion molecules. The selected optimized formulation (8%PCL-S-NO-HSA) had superior mechanical/morphological properties with high protein content revealing extended NO release (for 28 days). 8%PCL-S-NO-HSA patches significantly promoted endothelial cell proliferation while limiting smooth muscle cell proliferation. Expression of adhesion molecules (ICAM-1, VCAM-1) and pro-inflammatory macrophage/cytokine markers (CD80, IL-1α, TNF-α) was significantly reduced. 8%PCL-S-NO-HSA patches had superior immunomodulatory properties by up-regulating anti-inflammatory cytokines (IL-10) and M2 macrophage marker (CD163) at final time points. Grafts were further evaluated in a small rodent model as aortic implants up to 12 weeks. Grafts were assessed by magnetic resonance imaging angiography (MRI) in vivo and after retrieval by histology. All grafts remained 100 % patent with no signs of thrombosis or calcification. 8%PCL-S-NO-HSA vascular grafts supported rapid endothelialization, whereas smooth muscle cell proliferation was hampered in earlier phases. This study indicates that 8%PCL-S-NO-HSA grafts effectively support long-term in situ release of bioactive NO. The beneficial effects observed can be promising features for long-term success of small diameter vascular grafts. STATEMENT OF SIGNIFICANCE: Despite extensive research in the field of small diameter vascular graft replacement, there is still no appropriate substitute to autografts yet. Various limitations are associated with currently available synthetic vascular grafts such as thrombogenicity and intimal hyperplasia. Therefore, developing new generations of such conduits has become a major focus of research. One of the most significant signaling molecules that are involved in homeostasis of the vascular system is nitric oxide. The new designed nitric-oxide eluting vascular grafts described in this study induce rapid surface endothelialization and late migration of SMCs into the graft wall. These beneficial effects have potential to improve current limitations of small diameter vascular grafts.
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Affiliation(s)
- Marjan Enayati
- Center for Biomedical Research, Medical University Vienna, Austria; Ludwig Boltzmann Institute for Cardiovascular Research, Vienna, Austria; Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Karl H Schneider
- Center for Biomedical Research, Medical University Vienna, Austria; Ludwig Boltzmann Institute for Cardiovascular Research, Vienna, Austria; Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Ciarra Almeria
- Center for Biomedical Research, Medical University Vienna, Austria
| | - Christian Grasl
- Ludwig Boltzmann Institute for Cardiovascular Research, Vienna, Austria; Center for Medical Physics and Biomedical Engineering, Medical University Vienna, Austria
| | - Christoph Kaun
- Department of Internal Medicine II, Medical University of Vienna, Vienna, Austria
| | - Barbara Messner
- Cardiac Surgery Research Laboratory, Department of Cardiac Surgery, Medical University Vienna, Austria
| | - Sabrina Rohringer
- Center for Biomedical Research, Medical University Vienna, Austria; Ludwig Boltzmann Institute for Cardiovascular Research, Vienna, Austria
| | - Ingrid Walter
- Department of Pathobiology, University of Veterinary Medicine, Vienna, Austria
| | - Johann Wojta
- Ludwig Boltzmann Institute for Cardiovascular Research, Vienna, Austria; Department of Internal Medicine II, Medical University of Vienna, Vienna, Austria
| | - Lubos Budinsky
- Preclinical Imaging Laboratory, Division of Molecular and Gender Imaging, Department of Biomedical Imaging and Image-guided Therapy, Medical University of Vienna, Vienna, Austria; Faculty of Chemical and Food Technology, Central Laboratories, Slovak University of Technology, Bratislava, Slovakia
| | - Beat H Walpoth
- Emeritus, Cardiovascular Surgery and Research, University Hospital & University of Geneva, Geneva, Switzerland
| | - Heinrich Schima
- Ludwig Boltzmann Institute for Cardiovascular Research, Vienna, Austria; Center for Medical Physics and Biomedical Engineering, Medical University Vienna, Austria
| | - Gerd Kager
- Division of Physiological Chemistry, Otto Loewi Research Center, Medical University of Graz, Graz, Austria
| | - Seth Hallström
- Division of Physiological Chemistry, Otto Loewi Research Center, Medical University of Graz, Graz, Austria
| | - Bruno K Podesser
- Center for Biomedical Research, Medical University Vienna, Austria; Ludwig Boltzmann Institute for Cardiovascular Research, Vienna, Austria; Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Helga Bergmeister
- Center for Biomedical Research, Medical University Vienna, Austria; Ludwig Boltzmann Institute for Cardiovascular Research, Vienna, Austria; Austrian Cluster for Tissue Regeneration, Vienna, Austria.
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Zhang B, Su Y, Zhou J, Zheng Y, Zhu D. Toward a Better Regeneration through Implant-Mediated Immunomodulation: Harnessing the Immune Responses. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:e2100446. [PMID: 34117732 PMCID: PMC8373114 DOI: 10.1002/advs.202100446] [Citation(s) in RCA: 48] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 03/08/2021] [Indexed: 05/06/2023]
Abstract
Tissue repair/regeneration, after implantation or injury, involves comprehensive physiological processes wherein immune responses play a crucial role to enable tissue restoration, amidst the immune cells early-stage response to tissue damages. These cells break down extracellular matrix, clear debris, and secret cytokines to orchestrate regeneration. However, the immune response can also lead to abnormal tissue healing or scar formation if not well directed. This review first introduces the general immune response post injury, with focus on the major immune cells including neutrophils, macrophages, and T cells. Next, a variety of implant-mediated immunomodulation strategies to regulate immune response through physical, chemical, and biological cues are discussed. At last, various scaffold-facilitated regenerations of different tissue types, such as, bone, cartilage, blood vessel, and nerve system, by harnessing the immunomodulation are presented. Therefore, the most recent data in biomaterials and immunomodulation is presented here in a bid to shape expert perspectives, inspire researchers to go in new directions, and drive development of future strategies focusing on targeted, sequential, and dynamic immunomodulation elicited by implants.
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Affiliation(s)
- Ben Zhang
- Department of Biomedical EngineeringStony Brook UniversityStony BrookNew York11794USA
| | - Yingchao Su
- Department of Biomedical EngineeringStony Brook UniversityStony BrookNew York11794USA
| | - Juncen Zhou
- Department of Biomedical EngineeringStony Brook UniversityStony BrookNew York11794USA
| | - Yufeng Zheng
- Department of Materials Science and EngineeringCollege of EngineeringPeking UniversityBeijing100871China
| | - Donghui Zhu
- Department of Biomedical EngineeringStony Brook UniversityStony BrookNew York11794USA
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Geng X, Xu ZQ, Tu CZ, Peng J, Jin X, Ye L, Zhang AY, Gu YQ, Feng ZG. Hydrogel Complex Electrospun Scaffolds and Their Multiple Functions in In Situ Vascular Tissue Engineering. ACS APPLIED BIO MATERIALS 2021; 4:2373-2384. [DOI: 10.1021/acsabm.0c01225] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Xue Geng
- School of Materials Science & Engineering, Beijing Institution of Technology, Beijing 100081, China
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, Beijing 100081, China
| | - Ze-Qin Xu
- Vascular Surgery, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - Cheng-Zhao Tu
- School of Materials Science & Engineering, Beijing Institution of Technology, Beijing 100081, China
| | - Jia Peng
- School of Materials Science & Engineering, Beijing Institution of Technology, Beijing 100081, China
| | - Xin Jin
- School of Materials Science & Engineering, Beijing Institution of Technology, Beijing 100081, China
| | - Lin Ye
- School of Materials Science & Engineering, Beijing Institution of Technology, Beijing 100081, China
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, Beijing 100081, China
| | - Ai-Ying Zhang
- School of Materials Science & Engineering, Beijing Institution of Technology, Beijing 100081, China
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, Beijing 100081, China
| | - Yong-Quan Gu
- Vascular Surgery, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - Zeng-Guo Feng
- School of Materials Science & Engineering, Beijing Institution of Technology, Beijing 100081, China
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, Beijing 100081, China
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14
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Leal BBJ, Wakabayashi N, Oyama K, Kamiya H, Braghirolli DI, Pranke P. Vascular Tissue Engineering: Polymers and Methodologies for Small Caliber Vascular Grafts. Front Cardiovasc Med 2021; 7:592361. [PMID: 33585576 PMCID: PMC7873993 DOI: 10.3389/fcvm.2020.592361] [Citation(s) in RCA: 81] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Accepted: 12/09/2020] [Indexed: 12/24/2022] Open
Abstract
Cardiovascular disease is the most common cause of death in the world. In severe cases, replacement or revascularization using vascular grafts are the treatment options. While several synthetic vascular grafts are clinically used with common approval for medium to large-caliber vessels, autologous vascular grafts are the only options clinically approved for small-caliber revascularizations. Autologous grafts have, however, some limitations in quantity and quality, and cause an invasiveness to patients when harvested. Therefore, the development of small-caliber synthetic vascular grafts (<5 mm) has been urged. Since small-caliber synthetic grafts made from the same materials as middle and large-caliber grafts have poor patency rates due to thrombus formation and intimal hyperplasia within the graft, newly innovative methodologies with vascular tissue engineering such as electrospinning, decellularization, lyophilization, and 3D printing, and novel polymers have been developed. This review article represents topics on the methodologies used in the development of scaffold-based vascular grafts and the polymers used in vitro and in vivo.
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Affiliation(s)
- Bruna B J Leal
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federal Do Rio Grande Do Sul, Porto Alegre, Brazil.,Post-graduate Program in Physiology, Universidade Federal Do Rio Grande Do Sul, Porto Alegre, Brazil
| | - Naohiro Wakabayashi
- Division of Cardiac Surgery, Department of Medicine, Asahikawa Medical University, Asahikawa, Japan
| | - Kyohei Oyama
- Division of Cardiac Surgery, Department of Medicine, Asahikawa Medical University, Asahikawa, Japan
| | - Hiroyuki Kamiya
- Division of Cardiac Surgery, Department of Medicine, Asahikawa Medical University, Asahikawa, Japan
| | - Daikelly I Braghirolli
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federal Do Rio Grande Do Sul, Porto Alegre, Brazil
| | - Patricia Pranke
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federal Do Rio Grande Do Sul, Porto Alegre, Brazil.,Post-graduate Program in Physiology, Universidade Federal Do Rio Grande Do Sul, Porto Alegre, Brazil.,Stem Cell Research Institute, Porto Alegre, Brazil
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15
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Antonova L, Krivkina E, Rezvova M, Sevostyanova V, Tkachenko V, Glushkova T, Akentyeva T, Kudryavtseva Y, Barbarash L. A Technology for Anti-Thrombogenic Drug Coating of Small-Diameter Biodegradable Vascular Prostheses. Sovrem Tekhnologii Med 2020; 12:6-12. [PMID: 34796013 PMCID: PMC8596239 DOI: 10.17691/stm2020.12.6.01] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Indexed: 11/30/2022] Open
Abstract
The aim of the study was to develop a technology for anti-thrombogenic drug coating of biodegradable porous scaffolds and to evaluate the physicomechanical and hemocompatible properties of functionally active vascular prostheses with and without a drug coating. MATERIALS AND METHODS Vascular prostheses from polyhydroxybutyrate/valerate and polycaprolactone with the incorporated vascular endothelial growth factor, the main fibroblast growth factor, and the chemoattractant SDF-1α were made by emulsion electrospinning. Additional surface modification of the prostheses was carried out by forming a hydrogel coating of polyvinylpyrrolidone capable of binding drugs as a result of complexation. Unfractionated heparin and iloprost were used as anti-thrombogenic drugs. RESULTS We show that after the modification of vascular prostheses with heparin and iloprost, a 5.8-fold increase in the Young's modulus value was noted, which indicated a greater stiffness of these grafts compared to the unmodified controls. Platelet aggregation on the surface of heparin + iloprost coated vascular prostheses was 3.3 times less than that with the unmodified controls, and 1.8 times less compared to intact platelet-rich plasma. The surface of vascular prostheses with heparin and iloprost was resistant to adhesion of platelets and blood proteins. CONCLUSION Drug (unfractionated heparin and iloprost) coating of the surface of biodegradable prostheses significantly improved the anti-thrombogenic properties of these grafts but contributed to the increased stiffness of the prostheses.
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Affiliation(s)
- L.V. Antonova
- Head of the Laboratory of Cell Technologies, Department of Experimental Medicine; Research Institute for Complex Issues of Cardiovascular Diseases, 6 Sosnovy Blvd, Kemerovo, 650002, Russia
| | - E.O. Krivkina
- Junior Researcher, Laboratory of Cell Technologies, Department of Experimental Medicine; Research Institute for Complex Issues of Cardiovascular Diseases, 6 Sosnovy Blvd, Kemerovo, 650002, Russia
| | - M.A. Rezvova
- Junior Researcher, Laboratory of New Biomaterials, Department of Experimental Medicine; Research Institute for Complex Issues of Cardiovascular Diseases, 6 Sosnovy Blvd, Kemerovo, 650002, Russia
| | - V.V. Sevostyanova
- Researcher, Laboratory of Cell Technologies, Department of Experimental Medicine; Research Institute for Complex Issues of Cardiovascular Diseases, 6 Sosnovy Blvd, Kemerovo, 650002, Russia
| | - V.O. Tkachenko
- Senior Researcher; Budker Institute of Nuclear Physics, Siberian Branch of the Russian Academy of Sciences, 11 Acad. Lavrentieva Avenue, Novosibirsk, 630090, Russia
| | - T.V. Glushkova
- Researcher, Laboratory of New Biomaterials, Department of Experimental Medicine; Research Institute for Complex Issues of Cardiovascular Diseases, 6 Sosnovy Blvd, Kemerovo, 650002, Russia
| | - T.N. Akentyeva
- Junior Researcher, Laboratory of New Biomaterials, Department of Experimental Medicine; Research Institute for Complex Issues of Cardiovascular Diseases, 6 Sosnovy Blvd, Kemerovo, 650002, Russia
| | - Yu.A. Kudryavtseva
- Head of the Department of Experimental Medicine; Research Institute for Complex Issues of Cardiovascular Diseases, 6 Sosnovy Blvd, Kemerovo, 650002, Russia
| | - L.S. Barbarash
- Professor, Academician of the Russian Academy of Sciences, Chief Researcher Research Institute for Complex Issues of Cardiovascular Diseases, 6 Sosnovy Blvd, Kemerovo, 650002, Russia
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Aslani S, Kabiri M, HosseinZadeh S, Hanaee-Ahvaz H, Taherzadeh ES, Soleimani M. The applications of heparin in vascular tissue engineering. Microvasc Res 2020; 131:104027. [DOI: 10.1016/j.mvr.2020.104027] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Revised: 06/01/2020] [Accepted: 06/02/2020] [Indexed: 02/06/2023]
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17
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Hao D, Swindell HS, Ramasubramanian L, Liu R, Lam KS, Farmer DL, Wang A. Extracellular Matrix Mimicking Nanofibrous Scaffolds Modified With Mesenchymal Stem Cell-Derived Extracellular Vesicles for Improved Vascularization. Front Bioeng Biotechnol 2020; 8:633. [PMID: 32671037 PMCID: PMC7329993 DOI: 10.3389/fbioe.2020.00633] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2020] [Accepted: 05/22/2020] [Indexed: 12/17/2022] Open
Abstract
The network structure and biological components of natural extracellular matrix (ECM) are indispensable for promoting tissue regeneration. Electrospun nanofibrous scaffolds have been widely used in regenerative medicine to provide structural support for cell growth and tissue regeneration due to their natural ECM mimicking architecture, however, they lack biological functions. Extracellular vesicles (EVs) are potent vehicles of intercellular communication due to their ability to transfer RNAs, proteins, and lipids, thereby mediating significant biological functions in different biological systems. Matrix-bound nanovesicles (MBVs) are identified as an integral and functional component of ECM bioscaffolds mediating significant regenerative functions. Therefore, to engineer EVs modified electrospun scaffolds, mimicking the structure of the natural EV-ECM complex and the physiological interactions between the ECM and EVs, will be attractive and promising in tissue regeneration. Previously, using one-bead one-compound (OBOC) combinatorial technology, we identified LLP2A, an integrin α4β1 ligand, which had a strong binding to human placenta-derived mesenchymal stem cells (PMSCs). In this study, we isolated PMSCs derived EVs (PMSC-EVs) and demonstrated they expressed integrin α4β1 and could improve endothelial cell (EC) migration and vascular sprouting in an ex vivo rat aortic ring assay. LLP2A treated culture surface significantly improved PMSC-EV attachment, and the PMSC-EV treated culture surface significantly enhanced the expression of angiogenic genes and suppressed apoptotic activity. We then developed an approach to enable "Click chemistry" to immobilize LLP2A onto the surface of electrospun scaffolds as a linker to immobilize PMSC-EVs onto the scaffold. The PMSC-EV modified electrospun scaffolds significantly promoted EC survival and angiogenic gene expression, such as KDR and TIE2, and suppressed the expression of apoptotic markers, such as caspase 9 and caspase 3. Thus, PMSC-EVs hold promising potential to functionalize biomaterial constructs and improve the vascularization and regenerative potential. The EVs modified biomaterial scaffolds can be widely used for different tissue engineering applications.
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Affiliation(s)
- Dake Hao
- Department of Surgery, School of Medicine, University of California, Davis, Sacramento, CA, United States
- Institute for Pediatric Regenerative Medicine, Shriners Hospitals for Children, Sacramento, CA, United States
| | - Hila Shimshi Swindell
- Department of Surgery, School of Medicine, University of California, Davis, Sacramento, CA, United States
- Institute for Pediatric Regenerative Medicine, Shriners Hospitals for Children, Sacramento, CA, United States
| | - Lalithasri Ramasubramanian
- Department of Surgery, School of Medicine, University of California, Davis, Sacramento, CA, United States
- Institute for Pediatric Regenerative Medicine, Shriners Hospitals for Children, Sacramento, CA, United States
| | - Ruiwu Liu
- Department of Biochemistry and Molecular Medicine, School of Medicine, University of California, Davis, Sacramento, CA, United States
| | - Kit S. Lam
- Department of Biochemistry and Molecular Medicine, School of Medicine, University of California, Davis, Sacramento, CA, United States
| | - Diana L. Farmer
- Department of Surgery, School of Medicine, University of California, Davis, Sacramento, CA, United States
- Institute for Pediatric Regenerative Medicine, Shriners Hospitals for Children, Sacramento, CA, United States
| | - Aijun Wang
- Department of Surgery, School of Medicine, University of California, Davis, Sacramento, CA, United States
- Institute for Pediatric Regenerative Medicine, Shriners Hospitals for Children, Sacramento, CA, United States
- Department of Biomedical Engineering, University of California, Davis, Davis, CA, United States
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Hao D, Fan Y, Xiao W, Liu R, Pivetti C, Walimbe T, Guo F, Zhang X, Farmer DL, Wang F, Panitch A, Lam KS, Wang A. Rapid endothelialization of small diameter vascular grafts by a bioactive integrin-binding ligand specifically targeting endothelial progenitor cells and endothelial cells. Acta Biomater 2020; 108:178-193. [PMID: 32151698 DOI: 10.1016/j.actbio.2020.03.005] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Revised: 02/29/2020] [Accepted: 03/03/2020] [Indexed: 12/31/2022]
Abstract
Establishing and maintaining a healthy endothelium on vascular and intravascular devices is crucial for the prevention of thrombosis and stenosis. Generating a biofunctional surface on vascular devices to recruit endothelial progenitor cells (EPCs) and endothelial cells (ECs) has proven efficient in promoting in situ endothelialization. However, molecules conventionally used for EPC/EC capturing generally lack structural stability, capturing specificity, and biological functionalities, which have limited their applications. Discovery of effective, specific, and structurally stable EPC/EC capturing ligands is desperately needed. Using the high-throughput One-Bead One-Compound combinatorial library screening technology, we recently identified a disulfide cyclic octa-peptide LXW7 (cGRGDdvc), which possesses strong binding affinity and functionality to EPCs/ECs, weak binding to platelets, and no binding to inflammatory cells. Because LXW7 is cyclic and 4 out of the 8 amino acids are unnatural D-amino acids, LXW7 is highly proteolytically stable. In this study, we applied LXW7 to modify small diameter vascular grafts using a Click chemistry approach. In vitro studies demonstrated that LXW7-modified grafts significantly improved EPC attachment, proliferation and endothelial differentiation and suppressed platelet attachment. In a rat carotid artery bypass model, LXW7 modification of the small diameter vascular grafts significantly promoted EPC/EC recruitment and rapidly achieved endothelialization. At 6 weeks after implantation, LXW7-modified grafts retained a high patency of 83%, while the untreated grafts had a low patency of 17%. Our results demonstrate that LXW7 is a potent EPC/EC capturing and platelet suppressing ligand and LXW7-modified vascular grafts rapidly generate a healthy and stable endothelial interface between the graft surface and the circulation to reduce thrombosis and improve patency. STATEMENT OF SIGNIFICANCE: In this study, One-Bead One-Compound (OBOC) technology has been applied for the first time in discovering bioactive ligands for tissue regeneration applications. Current molecules used to modify artificial vascular grafts generally lack EPC/EC capturing specificity, biological functionalities and structural stability. Using OBOC technology, we identified LXW7, a constitutionally stable disulfide cyclic octa-peptide with strong binding affinity and biological functionality to EPCs/ECs, very weak binding to platelets and no binding to inflammatory cells. These characteristics are crucial for promoting rapid endothelialization to prevent thrombosis and improve patency of vascular grafts. LXW7 coating technology could be applied to a wide range of vascular and intravascular devices, including grafts, stents, cardiac valves, and catheters, where a "living" endothelium and healthy blood interface are needed.
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19
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Wang D, Xu Y, Li Q, Turng LS. Artificial small-diameter blood vessels: materials, fabrication, surface modification, mechanical properties, and bioactive functionalities. J Mater Chem B 2020; 8:1801-1822. [PMID: 32048689 PMCID: PMC7155776 DOI: 10.1039/c9tb01849b] [Citation(s) in RCA: 70] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Cardiovascular diseases, especially ones involving narrowed or blocked blood vessels with diameters smaller than 6 millimeters, are the leading cause of death globally. Vascular grafts have been used in bypass surgery to replace damaged native blood vessels for treating severe cardio- and peripheral vascular diseases. However, autologous replacement grafts are not often available due to prior harvesting or the patient's health. Furthermore, autologous harvesting causes secondary injury to the patient at the harvest site. Therefore, artificial blood vessels have been widely investigated in the last several decades. In this review, the progress and potential outlook of small-diameter blood vessels (SDBVs) engineered in vitro are highlighted and summarized, including material selection and development, fabrication techniques, surface modification, mechanical properties, and bioactive functionalities. Several kinds of natural and synthetic polymers for artificial SDBVs are presented here. Commonly used fabrication techniques, such as extrusion and expansion, electrospinning, thermally induced phase separation (TIPS), braiding, 3D printing, hydrogel tubing, gas foaming, and a combination of these methods, are analyzed and compared. Different surface modification methods, such as physical immobilization, surface adsorption, plasma treatment, and chemical immobilization, are investigated and are compared here as well. Mechanical requirements of SDBVs are also reviewed for long-term service. In vitro biological functions of artificial blood vessels, including oxygen consumption, nitric oxide (NO) production, shear stress response, leukocyte adhesion, and anticoagulation, are also discussed. Finally, we draw conclusions regarding current challenges and attempts to identify future directions for the optimal combination of materials, fabrication methods, surface modifications, and biofunctionalities. We hope that this review can assist with the design, fabrication, and application of SDBVs engineered in vitro and promote future advancements in this emerging research field.
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Affiliation(s)
- Dongfang Wang
- Department of Mechanical Engineering, University of Wisconsin, Madison, WI, USA. and Wisconsin Institute for Discovery, University of Wisconsin, Madison, WI, USA and School of Mechanics and Engineering Science, Zhengzhou University, Zhengzhou 450001, P. R. China and National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Yiyang Xu
- Department of Mechanical Engineering, University of Wisconsin, Madison, WI, USA. and Wisconsin Institute for Discovery, University of Wisconsin, Madison, WI, USA
| | - Qian Li
- School of Mechanics and Engineering Science, Zhengzhou University, Zhengzhou 450001, P. R. China and National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Lih-Sheng Turng
- Department of Mechanical Engineering, University of Wisconsin, Madison, WI, USA. and Wisconsin Institute for Discovery, University of Wisconsin, Madison, WI, USA
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20
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Yang Y, Gao P, Wang J, Tu Q, Bai L, Xiong K, Qiu H, Zhao X, Maitz MF, Wang H, Li X, Zhao Q, Xiao Y, Huang N, Yang Z. Endothelium-Mimicking Multifunctional Coating Modified Cardiovascular Stents via a Stepwise Metal-Catechol-(Amine) Surface Engineering Strategy. RESEARCH (WASHINGTON, D.C.) 2020; 2020:9203906. [PMID: 32405627 PMCID: PMC7196174 DOI: 10.34133/2020/9203906] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Accepted: 03/22/2020] [Indexed: 12/14/2022]
Abstract
Stenting is currently the major therapeutic treatment for cardiovascular diseases. However, the nonbiogenic metal stents are inclined to trigger a cascade of cellular and molecular events including inflammatory response, thrombogenic reactions, smooth muscle cell hyperproliferation accompanied by the delayed arterial healing, and poor reendothelialization, thus leading to restenosis along with late stent thrombosis. To address prevalence critical problems, we present an endothelium-mimicking coating capable of rapid regeneration of a competently functioning new endothelial layer on stents through a stepwise metal (copper)-catechol-(amine) (MCA) surface chemistry strategy, leading to combinatorial endothelium-like functions with glutathione peroxidase-like catalytic activity and surface heparinization. Apart from the stable nitric oxide (NO) generating rate at the physiological level (2.2 × 10-10 mol/cm2/min lasting for 60 days), this proposed strategy could also generate abundant amine groups for allowing a high heparin conjugation efficacy up to ∼1 μg/cm2, which is considerably higher than most of the conventional heparinized surfaces. The resultant coating could create an ideal microenvironment for bringing in enhanced anti-thrombogenicity, anti-inflammation, anti-proliferation of smooth muscle cells, re-endothelialization by regulating relevant gene expressions, hence preventing restenosis in vivo. We envision that the stepwise MCA coating strategy would facilitate the surface endothelium-mimicking engineering of vascular stents and be therefore helpful in the clinic to reduce complications associated with stenosis.
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Affiliation(s)
- Ying Yang
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane 4059, Australia
- Australia-China Centre for Tissue Engineering and Regenerative Medicine, Queensland University of Technology, Brisbane 4059, Australia
| | - Peng Gao
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
| | - Juan Wang
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
| | - Qiufen Tu
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
| | - Long Bai
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane 4059, Australia
- Australia-China Centre for Tissue Engineering and Regenerative Medicine, Queensland University of Technology, Brisbane 4059, Australia
| | - Kaiqin Xiong
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
| | - Hua Qiu
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
| | - Xin Zhao
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
| | - Manfred F. Maitz
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
- Max Bergmann Center of Biomaterials, Leibniz Institute of Polymer Research Dresden, Hohe Strasse 6, 01069 Dresden, Germany
| | - Huaiyu Wang
- Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Xiangyang Li
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
| | - Qiang Zhao
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin, China
| | - Yin Xiao
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane 4059, Australia
- Australia-China Centre for Tissue Engineering and Regenerative Medicine, Queensland University of Technology, Brisbane 4059, Australia
| | - Nan Huang
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
| | - Zhilu Yang
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
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Wen M, Zhou F, Cui C, Zhao Y, Yuan X. Performance of TMC-g-PEG-VAPG/miRNA-145 complexes in electrospun membranes for target-regulating vascular SMCs. Colloids Surf B Biointerfaces 2019; 182:110369. [DOI: 10.1016/j.colsurfb.2019.110369] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Revised: 06/23/2019] [Accepted: 07/14/2019] [Indexed: 12/23/2022]
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Best CA, Szafron JM, Rocco KA, Zbinden J, Dean EW, Maxfield MW, Kurobe H, Tara S, Bagi PS, Udelsman BV, Khosravi R, Yi T, Shinoka T, Humphrey JD, Breuer CK. Differential outcomes of venous and arterial tissue engineered vascular grafts highlight the importance of coupling long-term implantation studies with computational modeling. Acta Biomater 2019; 94:183-194. [PMID: 31200116 PMCID: PMC6819998 DOI: 10.1016/j.actbio.2019.05.063] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Revised: 05/07/2019] [Accepted: 05/24/2019] [Indexed: 12/13/2022]
Abstract
Electrospinning is commonly used to generate polymeric scaffolds for tissue engineering. Using this approach, we developed a small-diameter tissue engineered vascular graft (TEVG) composed of poly-ε-caprolactone-co-l-lactic acid (PCLA) fibers and longitudinally assessed its performance within both the venous and arterial circulations of immunodeficient (SCID/bg) mice. Based on in vitro analysis demonstrating complete loss of graft strength by 12 weeks, we evaluated neovessel formation in vivo over 6-, 12- and 24-week periods. Mid-term observations indicated physiologic graft function, characterized by 100% patency and luminal matching with adjoining native vessel in both the venous and arterial circulations. An active and robust remodeling process was characterized by a confluent endothelial cell monolayer, macrophage infiltrate, and extracellular matrix deposition and remodeling. Long-term follow-up of venous TEVGs at 24 weeks revealed viable neovessel formation beyond graft degradation when implanted in this high flow, low-pressure environment. Arterial TEVGs experienced catastrophic graft failure due to aneurysmal dilatation and rupture after 14 weeks. Scaffold parameters such as porosity, fiber diameter, and degradation rate informed a previously described computational model of vascular growth and remodeling, and simulations predicted the gross differential performance of the venous and arterial TEVGs over the 24-week time course. Taken together, these results highlight the requirement for in vivo implantation studies to extend past the critical time period of polymer degradation, the importance of differential neotissue deposition relative to the mechanical (pressure) environment, and further support the utility of predictive modeling in the design, use, and evaluation of TEVGs in vivo. STATEMENT OF SIGNIFICANCE: Herein, we apply a biodegradable electrospun vascular graft to the arterial and venous circulations of the mouse and follow recipients beyond the point of polymer degradation. While venous implants formed viable neovessels, arterial grafts experienced catastrophic rupture due to aneurysmal dilation. We then inform a previously developed computational model of tissue engineered vascular graft growth and remodeling with parameters specific to the electrospun scaffolds utilized in this study. Remarkably, model simulations predict the differential performance of the venous and arterial constructs over 24 weeks. We conclude that computational simulations should inform the rational selection of scaffold parameters to fabricate tissue engineered vascular grafts that must be followed in vivo over time courses extending beyond polymer degradation.
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Affiliation(s)
- Cameron A Best
- Center for Regenerative Medicine, Tissue Engineering Program, The Research Institute at Nationwide Children's Hospital, Columbus, OH, United States; Biomedical Sciences Graduate Program, The Ohio State University College of Medicine, Columbus, OH, United States.
| | - Jason M Szafron
- Department of Biomedical Engineering, Yale University, New Haven, CT, United States
| | | | - Jacob Zbinden
- Center for Regenerative Medicine, Tissue Engineering Program, The Research Institute at Nationwide Children's Hospital, Columbus, OH, United States; Biomedical Engineering Graduate Program, The Ohio State University College of Engineering, Columbus, OH, United States
| | - Ethan W Dean
- Department of Orthopaedic Surgery, University of Florida, Gainesville, FL, United States
| | - Mark W Maxfield
- Department of Thoracic Surgery, University of Massachusetts Memorial Medical Center, Worcester, MA, United States
| | - Hirotsugu Kurobe
- Department of Cardiovascular Surgery, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Shuhei Tara
- Department of Cardiovascular Medicine, Nippon Medical School, Tokyo, Japan
| | - Paul S Bagi
- Department of Orthopaedic Surgery, Yale-New Haven Hospital, New Haven, CT, United States
| | - Brooks V Udelsman
- Department of Surgery, Massachusetts General Hospital, Boston, MA, United States
| | - Ramak Khosravi
- Department of Biomedical Engineering, Yale University, New Haven, CT, United States
| | - Tai Yi
- Center for Regenerative Medicine, Tissue Engineering Program, The Research Institute at Nationwide Children's Hospital, Columbus, OH, United States
| | - Toshiharu Shinoka
- Center for Regenerative Medicine, Tissue Engineering Program, The Research Institute at Nationwide Children's Hospital, Columbus, OH, United States; Department of Cardiac Surgery, Nationwide Children's Hospital, Columbus, OH, United States
| | - Jay D Humphrey
- Department of Biomedical Engineering, Yale University, New Haven, CT, United States; Vascular Biology and Therapeutics Program, Yale University School of Medicine, New Haven, CT, United States
| | - Christopher K Breuer
- Center for Regenerative Medicine, Tissue Engineering Program, The Research Institute at Nationwide Children's Hospital, Columbus, OH, United States; Department of Surgery, Nationwide Children's Hospital, Columbus, OH, United States
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Ge S, Xi Y, Du R, Ren Y, Xu Z, Tan Y, Wang Y, Yin T, Wang G. Inhibition of in-stent restenosis after graphene oxide double-layer drug coating with good biocompatibility. Regen Biomater 2019; 6:299-309. [PMID: 31616567 PMCID: PMC6783699 DOI: 10.1093/rb/rbz010] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Revised: 02/15/2019] [Accepted: 02/21/2019] [Indexed: 12/20/2022] Open
Abstract
In this study, we designed a double layer-coated vascular stent of 316L stainless steel using an ultrasonic spray system to achieve both antiproliferation and antithrombosis. The coating included an inner layer of graphene oxide (GO) loaded with docetaxel (DTX) and an outer layer of carboxymethyl chitosan (CMC) loaded with heparin (Hep). The coated surface was uniform without aggregation and shedding phenomena before and after stent expanded. The coating treatment was able to inhibit the adhesion and activation of platelets and the proliferation and migration of smooth muscle cells, indicating the excellent biocompatibility and antiproliferation ability. The toxicity tests showed that the GO/DTX and CMC/Hep coating did not cause deformity and organ abnormalities in zebrafish under stereomicroscope. The stents with GO double-layer coating were safe and could effectively prevent thrombosis and in-stent restenosis after the implantation into rabbit carotid arteries for 4–12 weeks.
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Affiliation(s)
- Shuang Ge
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, China
| | - Yadong Xi
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, China
| | - Ruolin Du
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, China
| | - Yuzhen Ren
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, China
| | - Zichen Xu
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, China
| | - Youhua Tan
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hong Kong SAR, China
| | - Yazhou Wang
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, China
| | - Tieying Yin
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, China
| | - Guixue Wang
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, China
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