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Jiao J, Zhao X, Li L, Zhu T, Chen X, Ding Q, Chen Z, Xu P, Shi Y, Shao J. The promotion of vascular reconstruction by hierarchical structures in biodegradable small-diameter vascular scaffolds. BIOMATERIALS ADVANCES 2024; 162:213926. [PMID: 38917650 DOI: 10.1016/j.bioadv.2024.213926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2024] [Revised: 05/30/2024] [Accepted: 06/11/2024] [Indexed: 06/27/2024]
Abstract
Tissue engineering of small-diameter vessels remains challenging due to the inadequate ability to promote endothelialization and infiltration of smooth muscle cells (SMCs). Ideal vascular graft is expected to provide the ability to support endothelial monolayer formation and SMCs infiltration. To achieve this, vascular scaffolds with both orientation and dimension hierarchies were prepared, including hierarchically random vascular scaffold (RVS) and aligned vascular scaffold (AVS), by utilizing degradable poly(ε-caprolactone)-co-poly(ethylene glycol) (PCE) and the blend of PCE/gelatin (PCEG) as raw materials. In addition to the orientation hierarchy, dimension hierarchy with small pores in the inner layer and large pores in the outer layer was also constructed in both RVS and AVS to further investigate the promotion of vascular reconstruction by hierarchical structures in vascular scaffolds. The results show that the AVS with an orientation hierarchy that consists with the natural vascular structure had better mechanical properties and promotion effect on the proliferation of vascular cells than RVS, and also exhibited excellent contact guidance effects on cells. While the dimension hierarchy in both RVS and AVS was favorable to the rapid infiltration of SMCs in a short culture time in vitro. Besides, the results of subcutaneous implantation further demonstrate that AVS achieved a fully infiltrated outer layer with wavy elastic fibers-mimic strips formation by day 14, ascribing to hierarchies of aligned orientation and porous dimension. The results further indicate that the scaffolds with both orientation and dimension hierarchical structures have great potential in the application of promoting the vascular reconstruction.
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Affiliation(s)
- Jingjing Jiao
- College of Materials and Metallurgy, Guizhou University, Guiyang, Guizhou 550025, China
| | - Xin Zhao
- College of Materials and Metallurgy, Guizhou University, Guiyang, Guizhou 550025, China
| | - Long Li
- College of Materials and Metallurgy, Guizhou University, Guiyang, Guizhou 550025, China.
| | - Tao Zhu
- College of Materials and Metallurgy, Guizhou University, Guiyang, Guizhou 550025, China
| | - Xing Chen
- Department of Cardiovascular Surgery, Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430071, China
| | - Qiuyue Ding
- Department of Orthopedics, Guizhou Provincial People's Hospital, Guiyang, Guizhou 550000, China
| | - Zhu Chen
- Guiyang Hospital of Stomatology, Guiyang, Guizhou 550002, China
| | - Peng Xu
- College of Materials and Metallurgy, Guizhou University, Guiyang, Guizhou 550025, China
| | - Yan Shi
- College of Materials and Metallurgy, Guizhou University, Guiyang, Guizhou 550025, China
| | - Jiaojing Shao
- College of Materials and Metallurgy, Guizhou University, Guiyang, Guizhou 550025, China
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2
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Wang X, Zou Z, Li K, Ren C, Yu X, Zhang Y, Zhao P, Yan S, Li Q. Design and fabrication of dual-layer PCL nanofibrous scaffolds with inductive influence on vascular cell responses. Colloids Surf B Biointerfaces 2024; 240:113988. [PMID: 38810467 DOI: 10.1016/j.colsurfb.2024.113988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 05/03/2024] [Accepted: 05/22/2024] [Indexed: 05/31/2024]
Abstract
Confronted with the profound threat of cardiovascular diseases to health, vascular tissue engineering presents potential beyond the limitations of autologous and allogeneic grafts, offering a promising solution. This study undertakes an initial exploration into the impact of a natural active protein, elastin, on vascular cell behavior, by incorporating with polycaprolactone to prepare fibrous tissue engineering scaffold. The results reveal that elastin serves to foster endothelial cell adhesion and proliferation, suppress smooth muscle cell proliferation, and induce macrophage polarization. Furthermore, the incorporation of elastin contributes to heightened scaffold strength, compliance, and elongation, concomitantly lowering the elastic modulus. Subsequently, a bilayer oriented polycaprolactone (PCL) scaffold infused with elastin is proposed. This design draws inspiration from the cellular arrangement of native blood vessels, leveraging oriented fibers to guide cell orientation. The resulting fiber scaffold exhibits commendable mechanical properties and cell infiltration capacity, imparting valuable insights for the rapid endothelialization of vascular scaffolds.
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Affiliation(s)
- Xiaofeng Wang
- School of Mechanics and Safety Engineering, Zhengzhou University, Zhengzhou 450001, China; The State Key Laboratory of Fluid Power and Mechatronic Systems, Zhejiang University, Hangzhou 310027, China; National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou 450001, China
| | - Zifan Zou
- School of Mechanics and Safety Engineering, Zhengzhou University, Zhengzhou 450001, China; National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou 450001, China
| | - Kecheng Li
- School of Mechanics and Safety Engineering, Zhengzhou University, Zhengzhou 450001, China; National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou 450001, China
| | - Cuihong Ren
- School of Mechanics and Safety Engineering, Zhengzhou University, Zhengzhou 450001, China; National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou 450001, China
| | - Xiaorong Yu
- School of Mechanics and Safety Engineering, Zhengzhou University, Zhengzhou 450001, China; National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou 450001, China.
| | - Yang Zhang
- National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou 450001, China
| | - Peng Zhao
- The State Key Laboratory of Fluid Power and Mechatronic Systems, Zhejiang University, Hangzhou 310027, China
| | - Shujie Yan
- School of Mechanics and Safety Engineering, Zhengzhou University, Zhengzhou 450001, China; National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou 450001, China.
| | - Qian Li
- School of Mechanics and Safety Engineering, Zhengzhou University, Zhengzhou 450001, China; National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou 450001, China
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3
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Hernandez-Sanchez D, Comtois-Bona M, Muñoz M, Ruel M, Suuronen EJ, Alarcon EI. Manufacturing and validation of small-diameter vascular grafts: A mini review. iScience 2024; 27:109845. [PMID: 38799581 PMCID: PMC11126982 DOI: 10.1016/j.isci.2024.109845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2024] Open
Abstract
The field of small-diameter vascular grafts remains a challenge for biomaterials scientists. While decades of research have brought us much closer to developing biomimetic materials for regenerating tissues and organs, the physiological challenges involved in manufacturing small conduits that can transport blood while not inducing an immune response or promoting blood clots continue to limit progress in this area. In this short review, we present some of the most recent methods and advancements made by researchers working in the field of small-diameter vascular grafts. We also discuss some of the most critical aspects biomaterials scientists should consider when developing lab-made small-diameter vascular grafts.
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Affiliation(s)
- Deyanira Hernandez-Sanchez
- BioEngineering and Therapeutic Solutions (BEaTS) Research, Division of Cardiac Surgery, University of Ottawa Heart Institute, 40 Ruskin Street, Ottawa, ON K1Y4W7, Canada
| | - Maxime Comtois-Bona
- BioEngineering and Therapeutic Solutions (BEaTS) Research, Division of Cardiac Surgery, University of Ottawa Heart Institute, 40 Ruskin Street, Ottawa, ON K1Y4W7, Canada
| | - Marcelo Muñoz
- BioEngineering and Therapeutic Solutions (BEaTS) Research, Division of Cardiac Surgery, University of Ottawa Heart Institute, 40 Ruskin Street, Ottawa, ON K1Y4W7, Canada
| | - Marc Ruel
- BioEngineering and Therapeutic Solutions (BEaTS) Research, Division of Cardiac Surgery, University of Ottawa Heart Institute, 40 Ruskin Street, Ottawa, ON K1Y4W7, Canada
- Division of Cardiac Surgery, University of Ottawa Heart Institute, 40 Ruskin Street, Ottawa, ON K1Y4W7, Canada
- Department of Cellular & Molecular Medicine, University of Ottawa, Ottawa, 451 Smyth Road, Ottawa ON K1H8M5, Canada
| | - Erik J. Suuronen
- BioEngineering and Therapeutic Solutions (BEaTS) Research, Division of Cardiac Surgery, University of Ottawa Heart Institute, 40 Ruskin Street, Ottawa, ON K1Y4W7, Canada
- Department of Cellular & Molecular Medicine, University of Ottawa, Ottawa, 451 Smyth Road, Ottawa ON K1H8M5, Canada
| | - Emilio I. Alarcon
- BioEngineering and Therapeutic Solutions (BEaTS) Research, Division of Cardiac Surgery, University of Ottawa Heart Institute, 40 Ruskin Street, Ottawa, ON K1Y4W7, Canada
- Department of Biochemistry, Microbiology, and Immunology, University of Ottawa, 451 Smyth Road, Ottawa, ON K1H8M5, Canada
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4
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Ma F, Huang X, Wang Y. Fabrication of a Triple-Layer Bionic Vascular Scaffold via Hybrid Electrospinning. J Funct Biomater 2024; 15:140. [PMID: 38921514 PMCID: PMC11204414 DOI: 10.3390/jfb15060140] [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: 04/12/2024] [Revised: 05/13/2024] [Accepted: 05/21/2024] [Indexed: 06/27/2024] Open
Abstract
Tissue engineering aims to develop bionic scaffolds as alternatives to autologous vascular grafts due to their limited availability. This study introduces a novel wet-electrospinning fabrication technique to create small-diameter, uniformly aligned tubular scaffolds. By combining this innovative method with conventional electrospinning, a bionic tri-layer scaffold that mimics the zonal structure of vascular tissues is produced. The inner and outer layers consist of PCL/Gelatin and PCL/PLGA fibers, respectively, while the middle layer is crafted using PCL through Wet Vertical Magnetic Rod Electrospinning (WVMRE). The scaffold's morphology is analyzed using Scanning Electron Microscopy (SEM) to confirm its bionic structure. The mechanical properties, degradation profile, wettability, and biocompatibility of the scaffold are also characterized. To enhance hemocompatibility, the scaffold is crosslinked with heparin. The results demonstrate sufficient mechanical properties, good wettability of the inner layer, proper degradability of the inner and middle layers, and overall good biocompatibility. In conclusion, this study successfully develops a small-diameter tri-layer tubular scaffold that meets the required specifications.
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Affiliation(s)
- Feier Ma
- School of Sports Medicine and Rehabilitation, Beijing Sport University, Beijing 100084, China
- Institute of Orthopaedic & Musculoskeletal Science, Division of Surgery and Interventional Science, University College London, The Royal National Orthopaedic Hospital, Stanmore, London HA7 4LP, UK
| | - Xiaojing Huang
- School of Sports Medicine and Rehabilitation, Beijing Sport University, Beijing 100084, China
| | - Yan Wang
- School of Sports Medicine and Rehabilitation, Beijing Sport University, Beijing 100084, China
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5
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Santos MGD, França FS, Prestes JP, Teixeira C, Sommer LC, Sperling LE, Pranke P. Production of a Bioink Containing Decellularized Spinal Cord Tissue for 3D Bioprinting. Tissue Eng Part A 2024; 30:61-74. [PMID: 37772706 DOI: 10.1089/ten.tea.2023.0078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/30/2023] Open
Abstract
For the past few years, three-dimensional (3D) bioprinting has emerged as a promising approach in the field of regenerative medicine. This technique allows for the production of 3D scaffolds to support cell transplantation due to its ability to mimic the extracellular environment. One alternative to enhancing cell adhesion, survival, and proliferation is the use of decellularized extracellular matrix as a bioink component. The aim of this study was to produce a bioink using lyophilized rat decellularized spinal cord tissue (DSCT) for 3D bioprinting of nervous tissue. DNA quantification, hematoxylin and eosin and DAPI staining indicated that 1% sodium dodecyl sulfate and 9 h processing were effective in removing the cells from the spinal cord samples. The cell viability assay showed that the decellularized matrix is not cytotoxic for PC12 cells. The hydrogel containing DSCT, alginate, and gelatine used as the base for the bioink has a shear thinning behavior and low G″/G' ratio, allowing for good printability without compromising cell viability after 3D bioprinting. The bioink supported long-term PC12 cell survival, with 93% of live cells 4 weeks after printing, and stimulated the production of laminin-1 and neurofilament-M. This bioink, therefore, represents an easily available biomaterial for central nervous system tissue engineering.
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Affiliation(s)
- Marcelo Garrido Dos Santos
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
- Stem Cell Laboratory, Fundamental Health Science Institute, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
- Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Porto Alegre, Brazil
| | - Fernanda Stapenhorst França
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
- Stem Cell Laboratory, Fundamental Health Science Institute, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - João Pedro Prestes
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
- Stem Cell Laboratory, Fundamental Health Science Institute, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Cristian Teixeira
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
- Stem Cell Laboratory, Fundamental Health Science Institute, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
- Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Porto Alegre, Brazil
| | - Luiz Carlos Sommer
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
- Stem Cell Laboratory, Fundamental Health Science Institute, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Laura Elena Sperling
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
- Stem Cell Laboratory, Fundamental Health Science Institute, 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
- Stem Cell Laboratory, Fundamental Health Science Institute, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
- Instituto de Pesquisa com Células-tronco (IPCT), Porto Alegre, Brazil
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6
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Qiu S, Du J, Zhu T, Zhang H, Chen S, Wang C, Chen D, Lu S. Electrospun compliant heparinized elastic vascular graft for improving the patency after implantation. Int J Biol Macromol 2023; 253:126598. [PMID: 37660861 DOI: 10.1016/j.ijbiomac.2023.126598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 08/27/2023] [Accepted: 08/27/2023] [Indexed: 09/05/2023]
Abstract
The low patency rate after artificial blood vessel replacement is mainly due to the ineffective use of anticoagulant factors and the mismatch of mechanical compliance after transplantation. Electrospun nanofibers with biomimetic extracellular matrix three-dimensional structure and tunable mechanical strength are excellent carriers for heparin. In this work, we have designed and synthesized a series of biodegradable poly(ester-ether-urethane)ureas (BEPU), following compound with optimized constant concentration of heparin by homogeneous emulsion blending, then spun into the hybrid BEPU/heparin nanofibers tubular graft for replacing rats' abdominal aorta in situ for comprehensive performance evaluation. The results in vitro demonstrated that the electrospun L-PEUUH (LDI-based PEUU with heparin) vascular graft was of regular microstructure, optimum surface wettability, matched mechanical properties, reliable cytocompatibility, and strongest endothelialization in situ. Replacement of resected abdominal artery with the L-PEUUH vascular graft in rat showed that the graft was capable of homogeneous hybrid heparin and significantly promoted the stabilization of vascular endothelial cells (VECs) and vascular smooth muscle cells (VSMCs), as well as stabilizing the blood microenvironment. This research demonstrates the L-PEUUH vascular graft with substantial patency, indicating their potential for injured vascular healing.
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Affiliation(s)
- Shouji Qiu
- Department of Cardiovascular Surgery, Zhongshan Hospital, Fudan University, The Shanghai Institute of Cardiovascular Diseases, 1609 Xietu Rd., Shanghai 200032, PR China
| | - Juan Du
- School of Chemistry and Chemical Engineering, Institute for Frontier Medical Technology, Shanghai University of Engineering Science, 333 Longteng Rd., Shanghai 201620, PR China
| | - Tonghe Zhu
- School of Chemistry and Chemical Engineering, Institute for Frontier Medical Technology, Shanghai University of Engineering Science, 333 Longteng Rd., Shanghai 201620, PR China
| | - Haibo Zhang
- Department of Cardiothoracic Surgery, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, 1678 Dongfang Rd., Shanghai 200127, PR China
| | - Sihao Chen
- School of Chemistry and Chemical Engineering, Institute for Frontier Medical Technology, Shanghai University of Engineering Science, 333 Longteng Rd., Shanghai 201620, PR China
| | - Chunsheng Wang
- Department of Cardiovascular Surgery, Zhongshan Hospital, Fudan University, The Shanghai Institute of Cardiovascular Diseases, 1609 Xietu Rd., Shanghai 200032, PR China.
| | - Dian Chen
- Department of Cardiothoracic Surgery, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, 1678 Dongfang Rd., Shanghai 200127, PR China.
| | - Shuyang Lu
- Department of Cardiovascular Surgery, Zhongshan Hospital, Fudan University, The Shanghai Institute of Cardiovascular Diseases, 1609 Xietu Rd., Shanghai 200032, PR China.
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7
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Choi J, Lee EJ, Jang WB, Kwon SM. Development of Biocompatible 3D-Printed Artificial Blood Vessels through Multidimensional Approaches. J Funct Biomater 2023; 14:497. [PMID: 37888162 PMCID: PMC10607080 DOI: 10.3390/jfb14100497] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 10/05/2023] [Accepted: 10/06/2023] [Indexed: 10/28/2023] Open
Abstract
Within the human body, the intricate network of blood vessels plays a pivotal role in transporting nutrients and oxygen and maintaining homeostasis. Bioprinting is an innovative technology with the potential to revolutionize this field by constructing complex multicellular structures. This technique offers the advantage of depositing individual cells, growth factors, and biochemical signals, thereby facilitating the growth of functional blood vessels. Despite the challenges in fabricating vascularized constructs, bioprinting has emerged as an advance in organ engineering. The continuous evolution of bioprinting technology and biomaterial knowledge provides an avenue to overcome the hurdles associated with vascularized tissue fabrication. This article provides an overview of the biofabrication process used to create vascular and vascularized constructs. It delves into the various techniques used in vascular engineering, including extrusion-, droplet-, and laser-based bioprinting methods. Integrating these techniques offers the prospect of crafting artificial blood vessels with remarkable precision and functionality. Therefore, the potential impact of bioprinting in vascular engineering is significant. With technological advances, it holds promise in revolutionizing organ transplantation, tissue engineering, and regenerative medicine. By mimicking the natural complexity of blood vessels, bioprinting brings us one step closer to engineering organs with functional vasculature, ushering in a new era of medical advancement.
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Affiliation(s)
- Jaewoo Choi
- Laboratory for Vascular Medicine and Stem Cell Biology, Department of Physiology, Medical Research Institute, School of Medicine, Pusan National University, Yangsan 50612, Republic of Korea; (J.C.); (E.J.L.)
- Convergence Stem Cell Research Center, Pusan National University, Yangsan 50612, Republic of Korea
| | - Eun Ji Lee
- Laboratory for Vascular Medicine and Stem Cell Biology, Department of Physiology, Medical Research Institute, School of Medicine, Pusan National University, Yangsan 50612, Republic of Korea; (J.C.); (E.J.L.)
- Convergence Stem Cell Research Center, Pusan National University, Yangsan 50612, Republic of Korea
| | - Woong Bi Jang
- Laboratory for Vascular Medicine and Stem Cell Biology, Department of Physiology, Medical Research Institute, School of Medicine, Pusan National University, Yangsan 50612, Republic of Korea; (J.C.); (E.J.L.)
- Convergence Stem Cell Research Center, Pusan National University, Yangsan 50612, Republic of Korea
| | - Sang-Mo Kwon
- Laboratory for Vascular Medicine and Stem Cell Biology, Department of Physiology, Medical Research Institute, School of Medicine, Pusan National University, Yangsan 50612, Republic of Korea; (J.C.); (E.J.L.)
- Convergence Stem Cell Research Center, Pusan National University, Yangsan 50612, Republic of Korea
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Liu Z, Rütten S, Buhl EM, Zhang M, Liu J, Rojas-González DM, Mela P. Development of a Silk Fibroin-Small Intestinal Submucosa Small-Diameter Vascular Graft with Sequential VEGF and TGF-β1 Inhibitor Delivery for In Situ Tissue Engineering. Macromol Biosci 2023; 23:e2300184. [PMID: 37262314 DOI: 10.1002/mabi.202300184] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 05/23/2023] [Indexed: 06/03/2023]
Abstract
Proper endothelialization and limited collagen deposition on the luminal surface after graft implantation plays a crucial role to prevent the occurrence of stenosis. To achieve these conditions, a biodegradable graft with adequate mechanical properties and the ability to sequentially deliver therapeutic agents isfabricated. In this study, a dual-release system is constructed through coaxial electrospinning by incorporating recombinant human vascular endothelial growth factor (VEGF) and transforming growth factor β1 (TGF-β1) inhibitor into silk fibroin (SF) nanofibers to form a bioactive membrane. The functionalized SF membrane as the inner layer of the graft is characterized by the release profile, cell proliferation and protein expression. It presents excellent biocompatibility and biodegradation, facilitating cell attachment, proliferation, and infiltration. The core-shell structure enables rapid VEGF release within 10 days and sustained plasmid delivery for 21 days. A 2.0-mm-diameter vascular graft is fabricated by integrating the SF membrane with decellularized porcine small intestinal submucosa (SIS), aiming to facilitate the integration process under a stable extracellular matrix structure. The bioengineered graft is functionalized with the sequential administration of VEGF and TGF-β1, and with the reinforced and compatible mechanical properties, thereby offers an orchestrated solution for stenosis with potential for in situ vascular tissue engineering applications.
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Affiliation(s)
- Zhengni Liu
- Department of Biohybrid & Medical Textiles (BioTex) at AME-Institute of Applied Medical Engineering, Helmholtz Institute-CBMS, RWTH Aachen University, Forckenbeckstr. 55, 52074, Aachen, Germany
- Department of Hernia and Abdominal Wall Surgery, Shanghai East Hospital, TongJi University, Jimo road 150, Shanghai, 200120, PR China
| | - Stephan Rütten
- Electron Microscopy Facility, Uniklinik RWTH Aachen, Pauwelsstrasse, 30, 52074, Aachen, Germany
| | - Eva Miriam Buhl
- Electron Microscopy Facility, Uniklinik RWTH Aachen, Pauwelsstrasse, 30, 52074, Aachen, Germany
| | - Minjun Zhang
- Department of Endodontics, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Zhizaoju road 639, Shanghai, 200011, PR China
| | - Jiajie Liu
- Department of Hernia and Abdominal Wall Surgery, Shanghai East Hospital, TongJi University, Jimo road 150, Shanghai, 200120, PR China
| | - Diana M Rojas-González
- Department of Biohybrid & Medical Textiles (BioTex) at AME-Institute of Applied Medical Engineering, Helmholtz Institute-CBMS, RWTH Aachen University, Forckenbeckstr. 55, 52074, Aachen, Germany
| | - Petra Mela
- Department of Biohybrid & Medical Textiles (BioTex) at AME-Institute of Applied Medical Engineering, Helmholtz Institute-CBMS, RWTH Aachen University, Forckenbeckstr. 55, 52074, Aachen, Germany
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9
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Cheng C, Li H, Liu J, Wu L, Fang Z, Xu G. MCP-1-Loaded Poly(l-lactide- co-caprolactone) Fibrous Films Modulate Macrophage Polarization toward an Anti-inflammatory Phenotype and Improve Angiogenesis. ACS Biomater Sci Eng 2023. [PMID: 37367696 DOI: 10.1021/acsbiomaterials.3c00476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/28/2023]
Abstract
Tissue engineering approaches such as the electrospinning technique can fabricate nanofibrous scaffolds which are widely used for small-diameter vascular grafting. However, foreign body reaction (FBR) and lack of endothelial coverage are still the main cause of graft failure after the implantation of nanofibrous scaffolds. Macrophage-targeting therapeutic strategies have the potential to address these issues. Here, we fabricate a monocyte chemotactic protein-1 (MCP-1)-loaded coaxial fibrous film with poly(l-lactide-co-ε-caprolactone) (PLCL/MCP-1). The PLCL/MCP-1 fibrous film can polarize macrophages toward anti-inflammatory M2 macrophages through the sustained release of MCP-1. Meanwhile, these specific functional polarization macrophages can mitigate FBR and promote angiogenesis during the remodeling of implanted fibrous films. These studies indicate that MCP-1-loaded PLCL fibers have a higher potential to modulate macrophage polarity, which provides a new strategy for small-diameter vascular graft designing.
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Affiliation(s)
- Can Cheng
- Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, P. R. China
- Department of General Surgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230001, P. R. China
| | - Heng Li
- Department of Comprehensive Surgery, Anhui Provincial Cancer Hospital, West District of The First Affiliated Hospital of USTC, Hefei, Anhui 230001, P. R. China
| | - Jingwen Liu
- Anhui Provincial Hospital Health Management Center, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230001, P. R. China
| | - Liang Wu
- Department of General Surgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230001, P. R. China
| | - Zhengdong Fang
- Department of Vascular Surgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230001, P. R. China
| | - Geliang Xu
- Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, P. R. China
- Department of General Surgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230001, P. R. China
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10
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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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11
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Berechet MD, Gaidau C, Nešić A, Constantinescu RR, Simion D, Niculescu O, Stelescu MD, Sandulache I, Râpă M. Antioxidant and Antimicrobial Properties of Hydrolysed Collagen Nanofibers Loaded with Ginger Essential Oil. MATERIALS (BASEL, SWITZERLAND) 2023; 16:1438. [PMID: 36837065 PMCID: PMC9965637 DOI: 10.3390/ma16041438] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 02/05/2023] [Accepted: 02/06/2023] [Indexed: 06/18/2023]
Abstract
Hydrolysed collagen obtained from bovine leather by-products were loaded with ginger essential oil and processed by the electrospinning technique for obtaining bioactive nanofibers. Particle size measurements of hydrolysed collagen, GC-MS analysis of ginger essential oil (EO), and structural and SEM examinations of collagen nanofibers loaded with ginger essential oil collected on waxed paper, cotton, and leather supports were performed. Antioxidant and antibacterial activities against Staphylococcus aureus and Escherichia coli and antifungal activity against Candida albicans were also determined. Data show that the hydrolysed collagen nanofibers loaded with ginger EO can be used in the medical, pharmaceutical, cosmetic, or niche fields.
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Affiliation(s)
- Mariana Daniela Berechet
- The National Research & Development Institute for Textiles and Leather, 16 Lucretiu Patrascanu Street, 030508 Bucharest, Romania
| | - Carmen Gaidau
- The National Research & Development Institute for Textiles and Leather, 16 Lucretiu Patrascanu Street, 030508 Bucharest, Romania
| | - Aleksandra Nešić
- Faculty of Technology, University of Novi Sad, 21102 Novi Sad, Serbia
| | - Rodica Roxana Constantinescu
- The National Research & Development Institute for Textiles and Leather, 16 Lucretiu Patrascanu Street, 030508 Bucharest, Romania
| | - Demetra Simion
- The National Research & Development Institute for Textiles and Leather, 16 Lucretiu Patrascanu Street, 030508 Bucharest, Romania
| | - Olga Niculescu
- The National Research & Development Institute for Textiles and Leather, 16 Lucretiu Patrascanu Street, 030508 Bucharest, Romania
| | - Maria Daniela Stelescu
- The National Research & Development Institute for Textiles and Leather, 16 Lucretiu Patrascanu Street, 030508 Bucharest, Romania
| | - Irina Sandulache
- The National Research & Development Institute for Textiles and Leather, 16 Lucretiu Patrascanu Street, 030508 Bucharest, Romania
| | - Maria Râpă
- Faculty of Materials Science and Engineering, Polytechnic University of Bucharest, 060042 Bucharest, Romania
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12
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Wang B, Wang X, Kenneth A, Drena A, Pacheco A, Kalvin L, Ibrahim ES, Rossi PJ, Thatcher K, Lincoln J. Developing small-diameter vascular grafts with human amniotic membrane: long-term evaluation of transplantation outcomes in a small animal model. Biofabrication 2023; 15. [PMID: 36626826 DOI: 10.1088/1758-5090/acb1da] [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: 10/05/2022] [Accepted: 01/10/2023] [Indexed: 01/11/2023]
Abstract
While current clinical utilization of large vascular grafts for vascular transplantation is encouraging, tissue engineering of small grafts still faces numerous challenges. This study aims to investigate the feasibility of constructing a small vascular graft from decellularized amniotic membranes (DAMs). DAMs were rolled around a catheter and each of the resulting grafts was crosslinked with (a) 0.1% glutaraldehyde; (b) 1-ethyl-3-(3-dimethylaminopropyl) crbodiimidehydro-chloride (20 mM)-N-hydroxy-succinimide (10 mM); (c) 0.5% genipin; and (d) no-crosslinking, respectively. Our results demonstrated the feasibility of using a rolling technique followed by lyophilization to transform DAM into a vessel-like structure. The genipin-crosslinked DAM graft showed an improved integrated structure, prolonged stability, proper mechanical property, and superior biocompatibility. After transplantation in rat abdominal aorta, the genipin-crosslinked DAM graft remained patent up to 16 months, with both endothelial and smooth muscle cell regeneration, which suggests that the genipin-crosslinked DAM graft has great potential to beimplementedas a small tissue engineered graft for futurevasculartransplantation.
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Affiliation(s)
- Bo Wang
- Joint Department of Biomedical Engineering, Marquette University and the Medical College of Wisconsin, Milwaukee, WI 53226, United States of America
| | - Xiaolong Wang
- Joint Department of Biomedical Engineering, Marquette University and the Medical College of Wisconsin, Milwaukee, WI 53226, United States of America
| | - Allen Kenneth
- Biomedical Resource Center, Medical College of Wisconsin, Milwaukee, WI 53226, United States of America
| | - Alexander Drena
- Department of Chemistry and Biochemistry, University of Wisconsin-Milwaukee, Milwaukee, WI 53211, United States of America
| | - Arsenio Pacheco
- Department of Chemistry and Biochemistry, University of Wisconsin-Milwaukee, Milwaukee, WI 53211, United States of America
| | - Lindsey Kalvin
- Department of Medicine, Division of Cardiovascular Medicine, Medical College of Wisconsin, Milwaukee, WI 53226, United States of America
| | - Ei-Sayed Ibrahim
- Department of Radiology, Medical College of Wisconsin, Milwaukee, WI 53226, United States of America
| | - Peter J Rossi
- Heart and Vascular Center, Froedtert Hospital, Milwaukee, WI 53226, United States of America
| | - Kaitlyn Thatcher
- Department of Pediatrics, Medical College of Wisconsin, Milwaukee, WI 53226, United States of America
| | - Joy Lincoln
- Department of Pediatrics, Medical College of Wisconsin, Milwaukee, WI 53226, United States of America
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13
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Obiweluozor FO, Kayumov M, Kwak Y, Cho HJ, Park CH, Park JK, Jeong YJ, Lee DW, Kim DW, Jeong IS. Rapid remodeling observed at mid-term in-vivo study of a smart reinforced acellular vascular graft implanted on a rat model. J Biol Eng 2023; 17:1. [PMID: 36597162 PMCID: PMC9810246 DOI: 10.1186/s13036-022-00313-9] [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: 08/10/2022] [Accepted: 11/21/2022] [Indexed: 01/05/2023] Open
Abstract
BACKGROUND The poor performance of conventional techniques used in cardiovascular disease patients requiring hemodialysis or arterial bypass grafting has prompted tissue engineers to search for clinically appropriate off-the-shelf vascular grafts. Most patients with cardiovascular disease lack suitable autologous tissue because of age or previous surgery. Commercially available vascular grafts with diameters of < 5 mm often fail because of thrombosis and intimal hyperplasia. RESULT Here, we tested tubular biodegradable poly-e-caprolactone/polydioxanone (PCL/PDO) electrospun vascular grafts in a rat model of aortic interposition for up to 12 weeks. The grafts demonstrated excellent patency (100%) confirmed by Doppler Ultrasound, resisted aneurysmal dilation and intimal hyperplasia, and yielded neoarteries largely free of foreign materials. At 12 weeks, the grafts resembled native arteries with confluent endothelium, synchronous pulsation, a contractile smooth muscle layer, and co-expression of various extracellular matrix components (elastin, collagen, and glycosaminoglycan). CONCLUSIONS The structural and functional properties comparable to native vessels observed in the neoartery indicate their potential application as an alternative for the replacement of damaged small-diameter grafts. This synthetic off-the-shelf device may be suitable for patients without autologous vessels. However, for clinical application of these grafts, long-term studies (> 1.5 years) in large animals with a vasculature similar to humans are needed.
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Affiliation(s)
- Francis O. Obiweluozor
- grid.14005.300000 0001 0356 9399Research and Business Development foundation, Chonnam National University, 77 Yongbong-ro, Yongbong-dong, Buk-gu, Gwangju, 61186 Republic of Korea
| | - Mukhammad Kayumov
- grid.411597.f0000 0004 0647 2471Department of Thoracic and Cardiovascular Surgery, Chonnam National University Hospital and Medical School, 160 Baekseo-ro, Dong-gu, Gwangju, 61469 Republic of Korea
| | - Yujin Kwak
- grid.411597.f0000 0004 0647 2471Department of Thoracic and Cardiovascular Surgery, Chonnam National University Hospital and Medical School, 160 Baekseo-ro, Dong-gu, Gwangju, 61469 Republic of Korea
| | - Hwa-Jin Cho
- grid.14005.300000 0001 0356 9399Department of Pediatrics, Chonnam National University Children’s Hospital and Medical School, Gwangju, 61469 Republic of Korea
| | - Chan-Hee Park
- grid.411545.00000 0004 0470 4320Department of Mechanical Engineering Graduate School, Chonbuk National University, 567 Baekje-daero, Deokjin-gu, Jeonju, 54896 Republic of Korea
| | - Jun-kyu Park
- grid.454173.00000 0004 0647 1903CGBio Co. Ltd., 244 Galmachi-ro, Jungwon-u, Seongnam, 13211 Republic of Korea
| | - Yun-Jin Jeong
- grid.14005.300000 0001 0356 9399School of Mechanical Engineering Chonnam National University, Repubic of, Gwangju, 61469 South Korea
| | - Dong-Weon Lee
- grid.14005.300000 0001 0356 9399School of Mechanical Engineering Chonnam National University, Repubic of, Gwangju, 61469 South Korea
| | - Do-Wan Kim
- grid.411597.f0000 0004 0647 2471Department of Thoracic and Cardiovascular Surgery, Chonnam National University Hospital and Medical School, 160 Baekseo-ro, Dong-gu, Gwangju, 61469 Republic of Korea
| | - In-Seok Jeong
- grid.411597.f0000 0004 0647 2471Department of Thoracic and Cardiovascular Surgery, Chonnam National University Hospital and Medical School, 160 Baekseo-ro, Dong-gu, Gwangju, 61469 Republic of Korea
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14
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Tang Y, Yin L, Gao S, Long X, Du Z, Zhou Y, Zhao S, Cao Y, Pan S. A small-diameter vascular graft immobilized peptides for capturing endothelial colony-forming cells. Front Bioeng Biotechnol 2023; 11:1154986. [PMID: 37101749 PMCID: PMC10123284 DOI: 10.3389/fbioe.2023.1154986] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 03/23/2023] [Indexed: 04/28/2023] Open
Abstract
Combining synthetic polymers and biomacromolecules prevents the occurrence of thrombogenicity and intimal hyperplasia in small-diameter vascular grafts (SDVGs). In the present study, an electrospinning poly (L)-lactic acid (PLLA) bilayered scaffold is developed to prevent thrombosis after implantation by promoting the capture and differentiation of endothelial colony-forming cells (ECFCs). The scaffold consists of an outer PLLA scaffold and an inner porous PLLA biomimetic membrane combined with heparin (Hep), peptide Gly-Gly-Gly-Arg-Glu-Asp-Val (GGG-REDV), and vascular endothelial growth factor (VEGF). Attenuated total reflection Fourier transform infrared (ATR-FTIR) spectroscopy, X-ray photoelectron spectroscopy (XPS), and contact angle goniometry were performed to determine successful synthesis. The tensile strength of the outer layer was obtained using the recorded stress/strain curves, and hemocompatibility was evaluated using the blood clotting test. The proliferation, function, and differentiation properties of ECFCs were measured on various surfaces. Scanning electronic microscopy (SEM) was used to observe the morphology of ECFCs on the surface. The outer layer of scaffolds exhibited a similar strain and stress performance as the human saphenous vein via the tensile experiment. The contact angle decreased continuously until it reached 56° after REDV/VEGF modification, and SEM images of platelet adhesion showed a better hemocompatibility surface after modification. The ECFCs were captured using the REDV + VEGF + surface successfully under flow conditions. The expression of mature ECs was constantly increased with the culture of ECFCs on REDV + VEGF + surfaces. SEM images showed that the ECFCs captured by the REDV + VEGF + surface formed capillary-like structures after 4 weeks of culture. The SDVGs modified by REDV combined with VEGF promoted ECFC capture and rapid differentiation into ECs, forming capillary-like structures in vitro. The bilayered SDVGs could be used as vascular devices that achieved a high patency rate and rapid re-endothelialization.
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Affiliation(s)
- Yaqi Tang
- Heart Center, Qingdao Women and Children’s Hospital, Qingdao University, Qingdao, China
| | - Lu Yin
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou, China
| | - Shuai Gao
- Heart Center, Qingdao Women and Children’s Hospital, Qingdao University, Qingdao, China
| | - Xiaojing Long
- State Key Laboratory of Bio-fibers and Eco-textiles, Qingdao University, Qingdao, China
| | - Zhanhui Du
- Heart Center, Qingdao Women and Children’s Hospital, Qingdao University, Qingdao, China
| | - Yingchao Zhou
- Heart Center, Qingdao Women and Children’s Hospital, Qingdao University, Qingdao, China
| | - Shuiyan Zhao
- Heart Center, Qingdao Women and Children’s Hospital, Qingdao University, Qingdao, China
| | - Yue Cao
- Heart Center, Qingdao Women and Children’s Hospital, Qingdao University, Qingdao, China
| | - Silin Pan
- Heart Center, Qingdao Women and Children’s Hospital, Qingdao University, Qingdao, China
- *Correspondence: Silin Pan,
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15
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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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16
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Ozdemir S, Yalcin-Enis I, Yalcinkaya B, Yalcinkaya F. An Investigation of the Constructional Design Components Affecting the Mechanical Response and Cellular Activity of Electrospun Vascular Grafts. MEMBRANES 2022; 12:929. [PMID: 36295688 PMCID: PMC9607146 DOI: 10.3390/membranes12100929] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 09/20/2022] [Accepted: 09/22/2022] [Indexed: 06/16/2023]
Abstract
Cardiovascular disease is anticipated to remain the leading cause of death globally. Due to the current problems connected with using autologous arteries for bypass surgery, researchers are developing tissue-engineered vascular grafts (TEVGs). The major goal of vascular tissue engineering is to construct prostheses that closely resemble native blood vessels in terms of morphological, mechanical, and biological features so that these scaffolds can satisfy the functional requirements of the native tissue. In this setting, morphology and cellular investigation are usually prioritized, while mechanical qualities are generally addressed superficially. However, producing grafts with good mechanical properties similar to native vessels is crucial for enhancing the clinical performance of vascular grafts, exposing physiological forces, and preventing graft failure caused by intimal hyperplasia, thrombosis, aneurysm, blood leakage, and occlusion. The scaffold's design and composition play a significant role in determining its mechanical characteristics, including suturability, compliance, tensile strength, burst pressure, and blood permeability. Electrospun prostheses offer various models that can be customized to resemble the extracellular matrix. This review aims to provide a comprehensive and comparative review of recent studies on the mechanical properties of fibrous vascular grafts, emphasizing the influence of structural parameters on mechanical behavior. Additionally, this review provides an overview of permeability and cell growth in electrospun membranes for vascular grafts. This work intends to shed light on the design parameters required to maintain the mechanical stability of vascular grafts placed in the body to produce a temporary backbone and to be biodegraded when necessary, allowing an autologous vessel to take its place.
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Affiliation(s)
- Suzan Ozdemir
- Textile Engineering Department, Textile Technologies and Design Faculty, Istanbul Technical University, Beyoglu, 34467 Istanbul, Turkey
| | - Ipek Yalcin-Enis
- Textile Engineering Department, Textile Technologies and Design Faculty, Istanbul Technical University, Beyoglu, 34467 Istanbul, Turkey
| | - Baturalp Yalcinkaya
- Department of Material Science, Faculty of Mechanical Engineering, Technical University of Liberec, 461 17 Liberec, Czech Republic
| | - Fatma Yalcinkaya
- Department of Environmental Technology, Institute for Nanomaterials, Advanced Technologies and Innovations, Technical University of Liberec, 461 17 Liberec, Czech Republic
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17
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Xu C, Hong Y. Rational design of biodegradable thermoplastic polyurethanes for tissue repair. Bioact Mater 2022; 15:250-271. [PMID: 35386346 PMCID: PMC8940769 DOI: 10.1016/j.bioactmat.2021.11.029] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 11/09/2021] [Accepted: 11/24/2021] [Indexed: 12/25/2022] Open
Abstract
As a type of elastomeric polymers, non-degradable polyurethanes (PUs) have a long history of being used in clinics, whereas biodegradable PUs have been developed in recent decades, primarily for tissue repair and regeneration. Biodegradable thermoplastic (linear) PUs are soft and elastic polymeric biomaterials with high mechanical strength, which mimics the mechanical properties of soft and elastic tissues. Therefore, biodegradable thermoplastic polyurethanes are promising scaffolding materials for soft and elastic tissue repair and regeneration. Generally, PUs are synthesized by linking three types of changeable blocks: diisocyanates, diols, and chain extenders. Alternating the combination of these three blocks can finely tailor the physio-chemical properties and generate new functional PUs. These PUs have excellent processing flexibilities and can be fabricated into three-dimensional (3D) constructs using conventional and/or advanced technologies, which is a great advantage compared with cross-linked thermoset elastomers. Additionally, they can be combined with biomolecules to incorporate desired bioactivities to broaden their biomedical applications. In this review, we comprehensively summarized the synthesis, structures, and properties of biodegradable thermoplastic PUs, and introduced their multiple applications in tissue repair and regeneration. A whole picture of their design and applications along with discussions and perspectives of future directions would provide theoretical and technical supports to inspire new PU development and novel applications.
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Affiliation(s)
- Cancan Xu
- Department of Bioengineering, University of Texas at Arlington, Arlington, TX, 76019, USA
| | - Yi Hong
- Department of Bioengineering, University of Texas at Arlington, Arlington, TX, 76019, USA
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18
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A Review on Novel Channel Materials for Particle Image Velocimetry Measurements-Usability of Hydrogels in Cardiovascular Applications. Gels 2022; 8:gels8080502. [PMID: 36005103 PMCID: PMC9407631 DOI: 10.3390/gels8080502] [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: 07/10/2022] [Revised: 07/28/2022] [Accepted: 08/02/2022] [Indexed: 12/02/2022] Open
Abstract
Particle image velocimetry (PIV) is an optical and contactless measurement method for analyzing fluid blood dynamics in cardiovascular research. The main challenge to visualization investigated in the current research was matching the channel material’s index of refraction (IOR) to that of the fluid. Silicone is typically used as a channel material for these applications, so optical matching cannot be proven. This review considers hydrogel as a new PIV channel material for IOR matching. The advantages of hydrogels are their optical and mechanical properties. Hydrogels swell more than 90 vol% when hydrated in an aqueous solution and have an elastic behavior. This paper aimed to review single, double, and triple networks and nanocomposite hydrogels with suitable optical and mechanical properties to be used as PIV channel material, with a focus on cardiovascular applications. The properties are summarized in seven hydrogel groups: PAMPS, PAA, PVA, PAAm, PEG and PEO, PSA, and PNIPA. The reliability of the optical properties is related to low IORs, which allow higher light transmission. On the other hand, elastic modulus, tensile/compressive stress, and nominal tensile/compressive strain are higher for multiple-cross-linked and nanocomposite hydrogels than single mono-cross-linked gels. This review describes methods for measuring optical and mechanical properties, e.g., refractometry and mechanical testing.
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19
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Zakeri Z, Salehi R, Mahkam M, Rahbarghazi R, Abbasi F, Rezaei M. Electrospun POSS integrated poly(carbonate-urea)urethane provides appropriate surface and mechanical properties for the fabrication of small-diameter vascular grafts. JOURNAL OF BIOMATERIALS SCIENCE. POLYMER EDITION 2022; 33:1415-1434. [PMID: 35380915 DOI: 10.1080/09205063.2022.2059741] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
This study developed a platform for fabricating small-diameter vascular grafts using electrospun poly(carbonate-urea)urethane bonded with different concentrations of POSS nanocage. The characteristics of electrospun POSS-PCUUs were investigated by ATR-FTIR, 1HNMR, EDS, SEM, AFM, WCA, and DSC analyses. Besides, mechanical attributes such as tensile strength, modulus, elastic recovery, and inelastic behaviors were monitored. The survival rate and cellular attachment capacity were studied using human endothelial cells during a 7-day culture period. The results showed that electrospun nanofibers with 6 wt.% POSS-PCUU had better surface properties in terms of richness of POSS nanocage with notable improved mechanical strength and hysteresis loss properties (p < 0.05). The surface roughness of electrospun 6 wt.% POSS-PCUU reached 646 ± 10 nm with statistically significant differences compared to the control PCUU and groups containing 2, 4 wt.% POSS-PCUU (p < 0.05). The addition of 6 wt.% POSS increased the ultimate mechanical strength of nanofibers related to control PCUU and other groups (p < 0.05). The expansion of human endothelial cells on the 6 wt.% POSS-PCUU surface increased the viability reaching maximum levels on day 7 (p < 0.05). Immunofluorescence imaging using DAPI staining displayed the formation single-layer endothelial barrier at the luminal surface, indicating an appropriate cell-to-cell interaction.
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Affiliation(s)
- Ziba Zakeri
- Chemistry Department, Science Faculty, Azarbaijan Shahid Madani University, Tabriz, Iran
| | - Roya Salehi
- Drug Applied Research Center, Tabriz University of Medical Science, Tabriz, Iran
| | - Mehrdad Mahkam
- Chemistry Department, Science Faculty, Azarbaijan Shahid Madani University, Tabriz, Iran
| | - Reza Rahbarghazi
- cStem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Applied Cell Sciences, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Farhang Abbasi
- Institute of Polymeric Materials, Polymer Engineering Department, Sahand University of Technology, Tabriz, Iran
| | - Mostafa Rezaei
- Institute of Polymeric Materials, Polymer Engineering Department, Sahand University of Technology, Tabriz, Iran
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20
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Wang X, Li J, Bian Y, Zhao C, Li J, Li X. pH regulates the lumen diameter of tissue-engineered capillaries. Exp Ther Med 2022; 23:284. [PMID: 35317437 PMCID: PMC8908470 DOI: 10.3892/etm.2022.11212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Accepted: 12/03/2021] [Indexed: 11/24/2022] Open
Abstract
Angiogenesis is vital in tissue engineering and the size of the capillary lumen diameter directly affects vascular function. Therefore, the involvement of the pH in the regulation of the capillary lumen diameter was investigated in the present study. The cytosolic pH of different pH medium groups was measured using flow cytometry. Bromodeoxyuridine staining and wound-healing assays were performed to detect cell proliferation and migration, respectively. The expression of angiogenesis-related genes was detected using reverse transcription-quantitative PCR. In addition, cell tube formation under different pH conditions was assessed using a tube formation assay and a 3D Matrigel® model. The results indicated that a change in the pH value of the culture medium affected the cytosolic pH of the endothelial cells, which then led to a change in vascular diameter. When the medium's pH ranged from 7.4 to 7.6, the diameter of the lumen formed in the Matrigel was suitable for capillary formation in tissue engineering. The present results revealed an important role for the pH in the process of capillary formation and provided insight for pH regulation during endothelial cell tube formation and angiogenesis in tissue engineering.
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Affiliation(s)
- Xiaolin Wang
- Department of Plastic and Burn Surgery, The Second Affiliated Hospital, Air Force Medical University, Xi'an, Shaanxi 710038, P.R. China
| | - Jing Li
- Department of Plastic and Burn Surgery, The Second Affiliated Hospital, Air Force Medical University, Xi'an, Shaanxi 710038, P.R. China
| | - Yongqian Bian
- Department of Plastic and Burn Surgery, The Second Affiliated Hospital, Air Force Medical University, Xi'an, Shaanxi 710038, P.R. China
| | - Congying Zhao
- Department of Plastic and Burn Surgery, The Second Affiliated Hospital, Air Force Medical University, Xi'an, Shaanxi 710038, P.R. China
| | - Jinqing Li
- Department of Plastic and Burn Surgery, The Second Affiliated Hospital, Air Force Medical University, Xi'an, Shaanxi 710038, P.R. China
| | - Xueyong Li
- Department of Plastic and Burn Surgery, The Second Affiliated Hospital, Air Force Medical University, Xi'an, Shaanxi 710038, P.R. China
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21
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Characterization of polyurethane and a silk fibroin-polyurethane composite fiber studied with NMR spectroscopies. Polym J 2022. [DOI: 10.1038/s41428-022-00629-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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22
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Wei Y, Wang F, Guo Z, Zhao Q. Tissue-engineered vascular grafts and regeneration mechanisms. J Mol Cell Cardiol 2021; 165:40-53. [PMID: 34971664 DOI: 10.1016/j.yjmcc.2021.12.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Revised: 12/19/2021] [Accepted: 12/22/2021] [Indexed: 02/07/2023]
Abstract
Cardiovascular diseases (CVDs) are life-threatening diseases with high morbidity and mortality worldwide. Vascular bypass surgery is still the ultimate strategy for CVD treatment. Autografts are the gold standard for graft transplantation, but insufficient sources limit their widespread application. Therefore, alternative tissue engineered vascular grafts (TEVGs) are urgently needed. In this review, we summarize the major strategies for the preparation of vascular grafts, as well as the factors affecting their patency and tissue regeneration. Finally, the underlying mechanisms of vascular regeneration that are mediated by host cells are discussed.
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Affiliation(s)
- Yongzhen Wei
- Zhengzhou Cardiovascular Hospital and 7th People's Hospital of Zhengzhou, Zhengzhou, Henan Province, China; State key Laboratory of Medicinal Chemical Biology & Key Laboratory of Bioactive Materials (Ministry of Education), College of Life Sciences, Nankai University, Tianjin, China
| | - Fei Wang
- State key Laboratory of Medicinal Chemical Biology & Key Laboratory of Bioactive Materials (Ministry of Education), College of Life Sciences, Nankai University, Tianjin, China
| | - Zhikun Guo
- Zhengzhou Cardiovascular Hospital and 7th People's Hospital of Zhengzhou, Zhengzhou, Henan Province, China
| | - Qiang Zhao
- Zhengzhou Cardiovascular Hospital and 7th People's Hospital of Zhengzhou, Zhengzhou, Henan Province, China; State key Laboratory of Medicinal Chemical Biology & Key Laboratory of Bioactive Materials (Ministry of Education), College of Life Sciences, Nankai University, Tianjin, China.
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Yousefi-Ahmadipour A, Asadi F, Pirsadeghi A, Nazeri N, Vahidi R, Abazari MF, Afgar A, Mirzaei-Parsa MJ. Current Status of Stem Cell Therapy and Nanofibrous Scaffolds in Cardiovascular Tissue Engineering. REGENERATIVE ENGINEERING AND TRANSLATIONAL MEDICINE 2021. [DOI: 10.1007/s40883-021-00230-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Zhang Y, Wang X, Zhang Y, Liu Y, Wang D, Yu X, Wang H, Bai Z, Jiang YC, Li X, Zheng W, Li Q. Endothelial Cell Migration Regulated by Surface Topography of Poly(ε-caprolactone) Nanofibers. ACS Biomater Sci Eng 2021; 7:4959-4970. [PMID: 34543012 DOI: 10.1021/acsbiomaterials.1c00951] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The study of cell migration on biomaterials is of great significance in tissue engineering and regenerative medicine. In recent years, there has been increasing evidence that the physical properties of the extracellular matrix (ECM), such as surface topography, affect various cellular behaviors such as proliferation, adhesion, and migration. However, the biological mechanism of surface topography influencing cellular behavior is still unclear. In this study, we prepared polycaprolactone (PCL) fibrous materials with different surface microstructures by solvent casting, electrospinning, and self-induced crystallization. The corresponding topographical structure obtained is a two-dimensional (2D) flat surface, 2.5-dimensional (2.5D) fibers, and three-dimensional (3D) fibers with a multilevel microstructure. We then investigated the effects of the complex topographical structure on endothelial cell migration. Our study demonstrates that cells can sense the changes of micro- and nanomorphology on the surface of materials, adapt to the physical environment through biochemical reactions, and regulate actin polymerization and directional migration through Rac1 and Cdc42. The cells on the nanofibers are elongated spindles, and the positive feedback of cell adhesion and actin polymerization along the fiber direction makes the plasma membrane continue to protrude, promoting cell polarization and directional migration. This study might provide new insights into the biomaterial design, especially those used for artificial vascular grafts.
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Affiliation(s)
- Yang Zhang
- School of Mechanics and Safety Engineering, National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou 450001, China
| | - Xiaofeng Wang
- School of Mechanics and Safety Engineering, National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou 450001, China
| | - Yan Zhang
- School of Mechanics and Safety Engineering, National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou 450001, China
| | - Yajing Liu
- School of Mechanics and Safety Engineering, National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou 450001, China
| | - Dongfang Wang
- School of Mechanics and Safety Engineering, National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou 450001, China
| | - Xueke Yu
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Haonan Wang
- School of Mechanics and Safety Engineering, National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou 450001, China
| | - Zhiyuan Bai
- School of Mechanics and Safety Engineering, National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou 450001, China
| | - Yong-Chao Jiang
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Xiaomeng Li
- School of Mechanics and Safety Engineering, National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou 450001, China
| | - Wei Zheng
- Engineering and Technology Department, University of Wisconsin-STOUT, Menomonie, Wisconsin 54751, United States
| | - Qian Li
- School of Mechanics and Safety Engineering, National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou 450001, China
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Dellaquila A, Le Bao C, Letourneur D, Simon‐Yarza T. In Vitro Strategies to Vascularize 3D Physiologically Relevant Models. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:e2100798. [PMID: 34351702 PMCID: PMC8498873 DOI: 10.1002/advs.202100798] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 04/23/2021] [Indexed: 05/04/2023]
Abstract
Vascularization of 3D models represents a major challenge of tissue engineering and a key prerequisite for their clinical and industrial application. The use of prevascularized models built from dedicated materials could solve some of the actual limitations, such as suboptimal integration of the bioconstructs within the host tissue, and would provide more in vivo-like perfusable tissue and organ-specific platforms. In the last decade, the fabrication of vascularized physiologically relevant 3D constructs has been attempted by numerous tissue engineering strategies, which are classified here in microfluidic technology, 3D coculture models, namely, spheroids and organoids, and biofabrication. In this review, the recent advancements in prevascularization techniques and the increasing use of natural and synthetic materials to build physiological organ-specific models are discussed. Current drawbacks of each technology, future perspectives, and translation of vascularized tissue constructs toward clinics, pharmaceutical field, and industry are also presented. By combining complementary strategies, these models are envisioned to be successfully used for regenerative medicine and drug development in a near future.
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Affiliation(s)
- Alessandra Dellaquila
- Université de ParisINSERM U1148X Bichat HospitalParisF‐75018France
- Elvesys Microfluidics Innovation CenterParis75011France
- Biomolecular PhotonicsDepartment of PhysicsUniversity of BielefeldBielefeld33615Germany
| | - Chau Le Bao
- Université de ParisINSERM U1148X Bichat HospitalParisF‐75018France
- Université Sorbonne Paris NordGalilée InstituteVilletaneuseF‐93430France
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Rickel AP, Deng X, Engebretson D, Hong Z. Electrospun nanofiber scaffold for vascular tissue engineering. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 129:112373. [PMID: 34579892 DOI: 10.1016/j.msec.2021.112373] [Citation(s) in RCA: 57] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 07/28/2021] [Accepted: 08/10/2021] [Indexed: 12/16/2022]
Abstract
Due to the prevalence of cardiovascular diseases, there is a large need for small diameter vascular grafts that cannot be fulfilled using autologous vessels. Although medium to large diameter synthetic vessels are in use, no suitable small diameter vascular graft has been developed due to the unique dynamic environment that exists in small vessels. To achieve long term patency, a successful tissue engineered vascular graft would need to closely match the mechanical properties of native tissue, be non-thrombotic and non-immunogenic, and elicit the proper healing response and undergo remodeling to incorporate into the native vasculature. Electrospinning presents a promising approach to the development of a suitable tissue engineered vascular graft. This review provides a comprehensive overview of the different polymers, techniques, and functionalization approaches that have been used to develop an electrospun tissue engineered vascular graft.
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Affiliation(s)
- Alex P Rickel
- The Department of Biomedical Engineering, The University of South Dakota, Sioux Falls, SD 57107, United States of America
| | - Xiajun Deng
- The Department of Biomedical Engineering, The University of South Dakota, Sioux Falls, SD 57107, United States of America
| | - Daniel Engebretson
- The Department of Biomedical Engineering, The University of South Dakota, Sioux Falls, SD 57107, United States of America
| | - Zhongkui Hong
- The Department of Biomedical Engineering, The University of South Dakota, Sioux Falls, SD 57107, United States of America.
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Endothelial cells performance on 3D electrospun PVA/graphene nanocomposite tubular scaffolds. Polym Bull (Berl) 2021. [DOI: 10.1007/s00289-020-03340-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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28
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Tanaka T, Ibe Y, Jono T, Tanaka R, Naito A, Asakura T. Characterization of a Water-Dispersed Biodegradable Polyurethane-Silk Composite Sponge Using 13C Solid-State Nuclear Magnetic Resonance as Coating Material for Silk Vascular Grafts with Small Diameters. Molecules 2021; 26:4649. [PMID: 34361802 PMCID: PMC8347230 DOI: 10.3390/molecules26154649] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 07/12/2021] [Accepted: 07/27/2021] [Indexed: 11/30/2022] Open
Abstract
Recently, Bombyx mori silk fibroin (SF) has been shown to be a suitable material for vascular prostheses for small arteries. In this study, we developed a softer SF graft by coating water-dispersed biodegradable polyurethane (PU) based on polycaprolactone and an SF composite sponge on the knitted SF vascular graft. Three kinds of 13C solid-state nuclear magnetic resonance (NMR), namely carbon-13 (13C) cross-polarization/magic angle spinning (MAS), 13C dipolar decoupled MAS, and 13C refocused insensitive nuclei enhanced by polarization transfer (r-INEPT) NMR, were used to characterize the PU-SF coating sponge. Especially the 13C r-INEPT NMR spectrum of water-dispersed biodegradable PU showed that both main components of the non-crystalline domain of PU and amorphous domain of SF were highly mobile in the hydrated state. Then, the small-diameter SF artificial vascular grafts coated with this sponge were evaluated through implantation experiments with rats. The implanted PU-SF-coated SF grafts showed a high patency rate. It was confirmed that the inside of the SF grafts was covered with vascular endothelial cells 4 weeks after implantation. These results showed that the water-dispersed biodegradable PU-SF-coated SF graft created in this study could be a strong candidate for small-diameter artificial vascular graft.
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Affiliation(s)
- Takashi Tanaka
- Department of Veterinary Science, Tokyo University of Agriculture and Technology, Tokyo 183-8509, Japan; (T.T.); (R.T.)
| | - Yusuke Ibe
- Polyurethane Research Laboratory, Tosoh Corporation, Mie 510-8540, Japan; (Y.I.); (T.J.)
| | - Takaki Jono
- Polyurethane Research Laboratory, Tosoh Corporation, Mie 510-8540, Japan; (Y.I.); (T.J.)
| | - Ryo Tanaka
- Department of Veterinary Science, Tokyo University of Agriculture and Technology, Tokyo 183-8509, Japan; (T.T.); (R.T.)
| | - Akira Naito
- Department of Biotechnology, Tokyo University of Agriculture and Technology, Tokyo 184-8588, Japan;
| | - Tetsuo Asakura
- Department of Biotechnology, Tokyo University of Agriculture and Technology, Tokyo 184-8588, Japan;
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Genitourinary Tissue Engineering: Reconstruction and Research Models. Bioengineering (Basel) 2021; 8:bioengineering8070099. [PMID: 34356206 PMCID: PMC8301202 DOI: 10.3390/bioengineering8070099] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 06/28/2021] [Accepted: 07/06/2021] [Indexed: 01/15/2023] Open
Abstract
Tissue engineering is an emerging field of research that initially aimed to produce 3D tissues to bypass the lack of adequate tissues for the repair or replacement of deficient organs. The basis of tissue engineering protocols is to create scaffolds, which can have a synthetic or natural origin, seeded or not with cells. At the same time, more and more studies have indicated the low clinic translation rate of research realised using standard cell culture conditions, i.e., cells on plastic surfaces or using animal models that are too different from humans. New models are needed to mimic the 3D organisation of tissue and the cells themselves and the interaction between cells and the extracellular matrix. In this regard, urology and gynaecology fields are of particular interest. The urethra and vagina can be sites suffering from many pathologies without currently adequate treatment options. Due to the specific organisation of the human urethral/bladder and vaginal epithelium, current research models remain poorly representative. In this review, the anatomy, the current pathologies, and the treatments will be described before focusing on producing tissues and research models using tissue engineering. An emphasis is made on the self-assembly approach, which allows tissue production without the need for biomaterials.
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Heparin-Eluting Tissue-Engineered Bioabsorbable Vascular Grafts. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11104563] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The creation of small-diameter tissue-engineered vascular grafts using biodegradable materials has the potential to change the quality of cardiovascular surgery in the future. The implantation of these tissue-engineered arterial grafts has yet to reach clinical application. One of the reasons for this is thrombus occlusion of the graft in the acute phase. In this paper, we first describe the causes of accelerated thrombus formation and discuss the drugs that are thought to inhibit thrombus formation. We then review the latest research on methods to locally bind the anticoagulant heparin to biodegradable materials and methods to extend the duration of sustained heparin release. We also discuss the results of studies using large animal models and the challenges that need to be overcome for future clinical applications.
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31
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Biomimetic tubular scaffold with heparin conjugation for rapid degradation in in situ regeneration of a small diameter neoartery. Biomaterials 2021; 274:120874. [PMID: 34051629 DOI: 10.1016/j.biomaterials.2021.120874] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Revised: 04/27/2021] [Accepted: 05/02/2021] [Indexed: 01/22/2023]
Abstract
To address the clinical need for readily available small diameter vascular grafts, biomimetic tubular scaffolds were developed for rapid in situ blood vessel regeneration. The tubular scaffolds were designed to have an inner layer that is porous, interconnected, and with a nanofibrous architecture, which provided an excellent microenvironment for host cell invasion and proliferation. Through the synthesis of poly(spirolactic-co-lactic acid) (PSLA), a highly functional polymer with a norbornene substituting a methyl group in poly(l-lactic acid) (PLLA), we were able to covalently attach biomolecules onto the polymer backbone via thiol-ene click chemistry to impart desirable functionalities to the tubular scaffolds. Specifically, heparin was conjugated on the scaffolds in order to prevent thrombosis when implanted in situ. By controlling the amount of covalently attached heparin we were able to modulate the physical properties of the tubular scaffold, resulting in tunable wettability and degradation rate while retaining the porous and nanofibrous morphology. The scaffolds were successfully tested as rat abdominal aortic replacements. Patency and viability were confirmed through dynamic ultrasound and histological analysis of the regenerated tissue. The harvested tissue showed excellent vascular cellular infiltration, proliferation, and migration with laminar cellular arrangement. Furthermore, we achieved both complete reendothelialization of the vessel lumen and native-like media extracellular matrix. No signs of aneurysm or hyperplasia were observed after 3 months of vessel replacement. Taken together, we have developed an effective vascular graft able to generate small diameter blood vessels that can function in a rat model.
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Abstract
Tissue engineering is one of the most promising scientific breakthroughs of the late 20th century. Its objective is to produce in vitro tissues or organs to repair and replace damaged ones using various techniques, biomaterials, and cells. Tissue engineering emerged to substitute the use of native autologous tissues, whose quantities are sometimes insufficient to correct the most severe pathologies. Indeed, the patient’s health status, regulations, or fibrotic scars at the site of the initial biopsy limit their availability, especially to treat recurrence. This new technology relies on the use of biomaterials to create scaffolds on which the patient’s cells can be seeded. This review focuses on the reconstruction, by tissue engineering, of two types of tissue with tubular structures: vascular and urological grafts. The emphasis is on self-assembly methods which allow the production of tissue/organ substitute without the use of exogenous material, with the patient’s cells producing their own scaffold. These continuously improved techniques, which allow rapid graft integration without immune rejection in the treatment of severely burned patients, give hope that similar results will be observed in the vascular and urological fields.
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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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34
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Affiliation(s)
- Maria Laura Di Lorenzo
- Institute of Polymers, Composites and Biomaterials (IPCB), National Research Council (CNR), Pozzuoli, Italy
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35
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Fusaro L, Gualandi C, Antonioli D, Soccio M, Liguori A, Laus M, Lotti N, Boccafoschi F, Focarete ML. Elastomeric Electrospun Scaffolds of a Biodegradable Aliphatic Copolyester Containing PEG-Like Sequences for Dynamic Culture of Human Endothelial Cells. Biomolecules 2020; 10:E1620. [PMID: 33266333 PMCID: PMC7759847 DOI: 10.3390/biom10121620] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 11/26/2020] [Accepted: 11/27/2020] [Indexed: 01/31/2023] Open
Abstract
In the field of artificial prostheses for damaged vessel replacement, polymeric scaffolds showing the right combination of mechanical performance, biocompatibility, and biodegradability are still demanded. In the present work, poly(butylene-co-triethylene trans-1,4-cyclohexanedicarboxylate), a biodegradable random aliphatic copolyester, has been synthesized and electrospun in form of aligned and random fibers properly designed for vascular applications. The obtained materials were analyzed through tensile and dynamic-mechanical tests, the latter performed under conditions simulating the mechanical contraction of vascular tissue. Furthermore, the in vitro biological characterization, in terms of hemocompatibility and cytocompatibility in static and dynamic conditions, was also carried out. The mechanical properties of the investigated scaffolds fit within the range of physiological properties for medium- and small-caliber blood vessels, and the aligned scaffolds displayed a strain-stiffening behavior typical of the blood vessels. Furthermore, all the produced scaffolds showed constant storage and loss moduli in the investigated timeframe (24 h), demonstrating the stability of the scaffolds under the applied conditions of mechanical deformation. The biological characterization highlighted that the mats showed high hemocompatibility and low probability of thrombus formation; finally, the cytocompatibility tests demonstrated that cyclic stretch of electrospun fibers increased endothelial cell activity and proliferation, in particular on aligned scaffolds.
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Affiliation(s)
| | - Chiara Gualandi
- Department of Chemistry “Giacomo Ciamician” and INSTM UdR of Bologna, University of Bologna, 40126 Bologna, Italy; (C.G.); (A.L.)
- Interdepartmental Center for Industrial Research on Advanced Applications in Mechanical Engineering and Materials Technology, CIRI-MAM, University of Bologna, 40136 Bologna, Italy
| | - Diego Antonioli
- Department of Science and Technological Innovation and INSTM UdR Alessandria, University of Piemonte Orientale, 15121 Alessandria, Italy; (D.A.); (M.L.)
| | - Michelina Soccio
- Department of Civil, Chemical, Environmental and Materials Engineering, University of Bologna, 40131 Bologna, Italy; (M.S.); (N.L.)
| | - Anna Liguori
- Department of Chemistry “Giacomo Ciamician” and INSTM UdR of Bologna, University of Bologna, 40126 Bologna, Italy; (C.G.); (A.L.)
| | - Michele Laus
- Department of Science and Technological Innovation and INSTM UdR Alessandria, University of Piemonte Orientale, 15121 Alessandria, Italy; (D.A.); (M.L.)
| | - Nadia Lotti
- Department of Civil, Chemical, Environmental and Materials Engineering, University of Bologna, 40131 Bologna, Italy; (M.S.); (N.L.)
| | - Francesca Boccafoschi
- Department of Health Sciences, University of Piemonte Orientale, 28100 Novara, Italy
| | - Maria Letizia Focarete
- Department of Chemistry “Giacomo Ciamician” and INSTM UdR of Bologna, University of Bologna, 40126 Bologna, Italy; (C.G.); (A.L.)
- Health Sciences & Technologies (HST) CIRI, University of Bologna, 40064 Ozzano dell’Emilia, Italy
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36
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Nanoscience and nanotechnology in fabrication of scaffolds for tissue regeneration. INTERNATIONAL NANO LETTERS 2020. [DOI: 10.1007/s40089-020-00318-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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37
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3D Printing Decellularized Extracellular Matrix to Design Biomimetic Scaffolds for Skeletal Muscle Tissue Engineering. BIOMED RESEARCH INTERNATIONAL 2020; 2020:2689701. [PMID: 33282941 PMCID: PMC7685790 DOI: 10.1155/2020/2689701] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 09/08/2020] [Accepted: 10/27/2020] [Indexed: 02/06/2023]
Abstract
Functional engineered muscles are still a critical clinical issue to be addressed, although different strategies have been considered so far for the treatment of severe muscular injuries. Indeed, the regenerative capacity of skeletal muscle (SM) results inadequate for large-scale defects, and currently, SM reconstruction remains a complex and unsolved task. For this aim, tissue engineered muscles should provide a proper biomimetic extracellular matrix (ECM) alternative, characterized by an aligned/microtopographical structure and a myogenic microenvironment, in order to promote muscle regeneration. As a consequence, both materials and fabrication techniques play a key role to plan an effective therapeutic approach. Tissue-specific decellularized ECM (dECM) seems to be one of the most promising material to support muscle regeneration and repair. 3D printing technologies, on the other side, enable the fabrication of scaffolds with a fine and detailed microarchitecture and patient-specific implants with high structural complexity. To identify innovative biomimetic solutions to develop engineered muscular constructs for the treatment of SM loss, the more recent (last 5 years) reports focused on SM dECM-based scaffolds and 3D printing technologies for SM regeneration are herein reviewed. Possible design inputs for 3D printed SM dECM-based scaffolds for muscular regeneration are also suggested.
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38
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Cross-Linking Optimization for Electrospun Gelatin: Challenge of Preserving Fiber Topography. Polymers (Basel) 2020; 12:polym12112472. [PMID: 33113784 PMCID: PMC7692762 DOI: 10.3390/polym12112472] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Revised: 10/16/2020] [Accepted: 10/22/2020] [Indexed: 12/14/2022] Open
Abstract
Opportunely arranged micro/nano-scaled fibers represent an extremely attractive architecture for tissue engineering, as they offer an intrinsically porous structure, a high available surface, and an ideal microtopography for guiding cell migration. When fibers are made with naturally occurring polymers, matrices that closely mimic the architecture of the native extra-cellular matrix and offer specific chemical cues can be obtained. Along this track, electrospinning of collagen or gelatin is a typical and effective combination to easily prepare fibrous scaffolds with excellent properties in terms of biocompatibility and biomimicry, but an appropriate cross-linking strategy is required. Many common protocols involve the use of swelling solvents and can result in significant impairment of fibrous morphology and porosity. As a consequence, the efforts for processing gelatin into a fiber network can be vain, as a film-like morphology will be eventually presented to cells. However, this appears to be a frequently overlooked aspect. Here, the effect on fiber morphology of common cross-linking protocols was analyzed, and different strategies to improve the final morphology were evaluated (including alternative solvents, cross-linker concentration, mechanical constraint, and evaporation conditions). Finally, an optimized, fiber-preserving protocol based on carbodiimide (EDC) chemistry was defined.
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Li J, Long Y, Yang F, Wei H, Zhang Z, Wang Y, Wang J, Li C, Carlos C, Dong Y, Wu Y, Cai W, Wang X. Multifunctional Artificial Artery from Direct 3D Printing with Built-In Ferroelectricity and Tissue-Matching Modulus for Real-Time Sensing and Occlusion Monitoring. ADVANCED FUNCTIONAL MATERIALS 2020; 30:2002868. [PMID: 33679279 PMCID: PMC7928534 DOI: 10.1002/adfm.202002868] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Indexed: 05/29/2023]
Abstract
Treating vascular grafts failure requires complex surgery procedures and is associated with high risks. A real-time monitoring vascular system enables quick and reliable identification of complications and initiates safer treatments early. Here, an electric fieldassisted 3D printing technology is developed to fabricate in situ-poled ferroelectric artificial arteries that offer battery-free real-time blood pressure sensing and occlusion monitoring capability. The functional artery architecture is made possible by the development of a ferroelectric biocomposite which can be quickly polarized during printing and reshaped into devised objects. The synergistic effect from the potassium sodium niobite particles and the polyvinylidene fluoride polymer matrix yields a superb piezoelectric performance (bulk-scale d 33 > 12 pC N-1). The sinusoidal architecture brings the mechanical modulus close to the level of blood vessels. The desired piezoelectric and mechanical properties of the artificial artery provide an excellent sensitivity to pressure change (0.306 mV mmHg-1, R 2 > 0.99) within the range of human blood pressure (11.25-225.00 mmHg). The high pressure sensitivity and the ability to detect subtle vessel motion pattern change enable early detection of partial occlusion (e.g., thrombosis), allowing for preventing grafts failure. This work demonstrates a promising strategy of incorporating multifunctionality to artificial biological systems for smart healthcare systems.
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Affiliation(s)
| | | | - Fan Yang
- Department of Materials Science and Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Hao Wei
- Department of Radiology and Medical Physics, University of Wisconsin-Madison, Madison, WI 53705, USA
| | - Ziyi Zhang
- Department of Materials Science and Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Yizhan Wang
- Department of Materials Science and Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Jingyu Wang
- Department of Materials Science and Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Cheng Li
- Laboratory of Dielectric Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Corey Carlos
- Department of Materials Science and Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Yutao Dong
- Department of Materials Science and Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Yongjun Wu
- Laboratory of Dielectric Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Weibo Cai
- Department of Radiology and Medical Physics, University of Wisconsin-Madison, Madison, WI 53705, USA
| | - Xudong Wang
- Department of Materials Science and Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA
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Quint C. Tissue-engineered vessel derived from human fibroblasts with an electrospun scaffold. J Tissue Eng Regen Med 2020; 14:1652-1660. [PMID: 32889733 DOI: 10.1002/term.3130] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 07/20/2020] [Accepted: 08/24/2020] [Indexed: 11/07/2022]
Abstract
Advanced cardiovascular disease often requires surgical revascularization for small diameter arterial bypass procedures, and there is a need for alternative grafts in those patients lacking autologous vein. A decellularized biological vessel with the characteristics of a small artery and the ability to remodel in vivo could replace currently available bypass grafts. In this study, a biodegradable electrospun scaffold was specifically designed to be placed in a biomimetic perfusion system to generate a tissue-engineered vessel from human dermal fibroblasts. The polyglycolic acid electrospun scaffold was co-electrosprayed with a sacrificial porogen microparticle, polyethylene oxide, to increase porosity and pore size. After a 10-week culture period in the biomimetic system, the tissue-engineered vessel derived from human fibroblasts was further processed with decellularization to form an allogeneic tissue-engineered vessel. The tissue-engineered vessel had a similar morphology by histological staining for collagen and elastin before and after decellularization. The mechanical properties (burst pressure, ultimate tensile strength, and elastic modulus) remained stable after decellularization and were on the same magnitude as a human saphenous vein. The decellularization processing demonstrated no loss of collagen, near complete removal of DNA, and no presence of intracellular proteins. The decellularized tissue-engineered vessel supported the growth of endothelial cells on the surface, and fibroblasts were able to migrate into the midportion of the matrix. Therefore, an electrospun scaffold provides a versatile biomaterial to create a decellularized tissue-engineered vessel derived from human dermal fibroblasts with morphological and mechanical properties for use as a small diameter vascular graft.
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Affiliation(s)
- Clay Quint
- Department of Surgery, South Texas Veterans Health System, San Antonio, TX, USA
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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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Hodge J, Quint C. Tissue engineered vessel from a biodegradable electrospun scaffold stimulated with mechanical stretch. Biomed Mater 2020; 15:055006. [DOI: 10.1088/1748-605x/ab8e98] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Stoiber M, Grasl C, Frieberger K, Moscato F, Bergmeister H, Schima H. Impact of the testing protocol on the mechanical characterization of small diameter electrospun vascular grafts. J Mech Behav Biomed Mater 2020; 104:103652. [DOI: 10.1016/j.jmbbm.2020.103652] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Revised: 01/09/2020] [Accepted: 01/21/2020] [Indexed: 01/01/2023]
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Fibronectin Adsorption on Electrospun Synthetic Vascular Grafts Attracts Endothelial Progenitor Cells and Promotes Endothelialization in Dynamic In Vitro Culture. Cells 2020; 9:cells9030778. [PMID: 32210018 PMCID: PMC7140838 DOI: 10.3390/cells9030778] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 03/15/2020] [Accepted: 03/19/2020] [Indexed: 12/30/2022] Open
Abstract
Appropriate mechanical properties and fast endothelialization of synthetic grafts are key to ensure long-term functionality of implants. We used a newly developed biostable polyurethane elastomer (TPCU) to engineer electrospun vascular scaffolds with promising mechanical properties (E-modulus: 4.8 ± 0.6 MPa, burst pressure: 3326 ± 78 mmHg), which were biofunctionalized with fibronectin (FN) and decorin (DCN). Neither uncoated nor biofunctionalized TPCU scaffolds induced major adverse immune responses except for minor signs of polymorph nuclear cell activation. The in vivo endothelial progenitor cell homing potential of the biofunctionalized scaffolds was simulated in vitro by attracting endothelial colony-forming cells (ECFCs). Although DCN coating did attract ECFCs in combination with FN (FN + DCN), DCN-coated TPCU scaffolds showed a cell-repellent effect in the absence of FN. In a tissue-engineering approach, the electrospun and biofunctionalized tubular grafts were cultured with primary-isolated vascular endothelial cells in a custom-made bioreactor under dynamic conditions with the aim to engineer an advanced therapy medicinal product. Both FN and FN + DCN functionalization supported the formation of a confluent and functional endothelial layer.
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Wu T, Ding M, Shi C, Qiao Y, Wang P, Qiao R, Wang X, Zhong J. Resorbable polymer electrospun nanofibers: History, shapes and application for tissue engineering. CHINESE CHEM LETT 2020. [DOI: 10.1016/j.cclet.2019.07.033] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Yu C, Sharma S, Fang CH, Jeong H, Li J, Joice G, Bivalacqua TJ, Singh A. Aliphatic Chain Modification of Collagen Type I: Development of Elastomeric, Compliant, and Suturable Scaffolds. ACS APPLIED BIO MATERIALS 2020; 3:1331-1343. [DOI: 10.1021/acsabm.9b00781] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Christine Yu
- Department of Biomedical Engineering, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Shivang Sharma
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Chen Hao Fang
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Harrison Jeong
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Jiuru Li
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Gregory Joice
- Department of Urology, The James Buchanan Brady Urological Institute, The Johns Hopkins School of Medicine, Baltimore, Maryland 21287, United States
| | - Trinity J. Bivalacqua
- Department of Urology, The James Buchanan Brady Urological Institute, The Johns Hopkins School of Medicine, Baltimore, Maryland 21287, United States
- Departments of Surgery and Oncology, Johns Hopkins Medical Institutions and Sidney Kimmel Comprehensive Cancer Center (SKCC), Baltimore, Maryland 21287, United States
| | - Anirudha Singh
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, Maryland 21218, United States
- Department of Urology, The James Buchanan Brady Urological Institute, The Johns Hopkins School of Medicine, Baltimore, Maryland 21287, United States
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Zhang X, Shi J, Chen S, Dong Y, Zhang L, Midgley AC, Kong D, Wang S. Polycaprolactone/gelatin degradable vascular grafts simulating endothelium functions modified by nitric oxide generation. Regen Med 2019; 14:1089-1105. [PMID: 31829097 DOI: 10.2217/rme-2019-0015] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Aim: Host remolding with scaffolds degradation and rapid formation of a complete endothelium, are prospective solutions for improving performance of small diameter vascular grafts. Materials & methods: For this purpose, microfibrous polycaprolactone (PCL)/gelatin scaffolds were prepared by electrospinning and subsequently functionalized with heparin and organoselenium-immobilized polyethyleneimine for nitric oxide generation through layer-by-layer self-assembly. Results: Our results showed that modified PCL/gelatin grafts had strong catalytic nitric oxide generation capacity and facilitated the enhanced attachment of endothelial cells, compared with control scaffold groups. Meanwhile, the modified grafts exhibited good hemocombatility, rapid endothelialization and smooth muscle cell regeneration. Conclusion: Modification of biodegradable scaffolds, proposed in this work, could enhance biological functions of vascular grafts and provides new strategies for the construction of small diameter vascular grafts.
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Affiliation(s)
- XiangYun Zhang
- Key Laboratory of Bioactive Materials for Ministry of Education, College of Life Sciences, Nankai University Tianjin 300071, China
| | - Jie Shi
- Key Laboratory of Bioactive Materials for Ministry of Education, College of Life Sciences, Nankai University Tianjin 300071, China
| | - SiYuan Chen
- Key Laboratory of Bioactive Materials for Ministry of Education, College of Life Sciences, Nankai University Tianjin 300071, China
| | - YunSheng Dong
- Key Laboratory of Bioactive Materials for Ministry of Education, College of Life Sciences, Nankai University Tianjin 300071, China
| | - Lin Zhang
- Key Laboratory of Bioactive Materials for Ministry of Education, College of Life Sciences, Nankai University Tianjin 300071, China
| | - Adam C Midgley
- Key Laboratory of Bioactive Materials for Ministry of Education, College of Life Sciences, Nankai University Tianjin 300071, China
| | - DeLing Kong
- Key Laboratory of Bioactive Materials for Ministry of Education, College of Life Sciences, Nankai University Tianjin 300071, China
| | - ShuFang Wang
- Key Laboratory of Bioactive Materials for Ministry of Education, College of Life Sciences, Nankai University Tianjin 300071, China
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Li X, Huang L, Li L, Tang Y, Liu Q, Xie H, Tian J, Zhou S, Tang G. Biomimetic dual-oriented/bilayered electrospun scaffold for vascular tissue engineering. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2019; 31:439-455. [DOI: 10.1080/09205063.2019.1697171] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Xingmao Li
- College of Materials and Metallurgy, Guizhou University, Guiyang, Guizhou, China
| | - Lin Huang
- College of Materials and Metallurgy, Guizhou University, Guiyang, Guizhou, China
| | - Long Li
- College of Materials and Metallurgy, Guizhou University, Guiyang, Guizhou, China
| | - Ya Tang
- Medical College, Guizhou University, Guiyang, Guizhou, China
| | - Qibin Liu
- College of Materials and Metallurgy, Guizhou University, Guiyang, Guizhou, China
| | - Haibo Xie
- College of Materials and Metallurgy, Guizhou University, Guiyang, Guizhou, China
| | - Jialiang Tian
- Medical College, Guizhou University, Guiyang, Guizhou, China
| | - Shaobing Zhou
- Key Laboratory of Advanced Technologies of Material (Ministry of Education), School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, China
| | - Geng Tang
- College of Materials and Metallurgy, Guizhou University, Guiyang, Guizhou, China
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Jafari S, Hosseini Salekdeh SS, Solouk A, Yousefzadeh M. Electrospun polyethylene terephthalate (PET) nanofibrous conduit for biomedical application. POLYM ADVAN TECHNOL 2019. [DOI: 10.1002/pat.4768] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Sahar Jafari
- Biomedical Engineering DepartmentAmirkabir University of Technology (Tehran Polytechnic) Tehran Iran
| | | | - Atefeh Solouk
- Biomedical Engineering DepartmentAmirkabir University of Technology (Tehran Polytechnic) Tehran Iran
| | - Maryam Yousefzadeh
- Textile Engineering DepartmentAmirkabir University of Technology Tehran Iran
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Physico-mechanical and in vitro characterization of electrically conductive electrospun nanofibers of poly urethane/single walled carbon nano tube by great endothelial cells adhesion for vascular tissue engineering. JOURNAL OF POLYMER RESEARCH 2019. [DOI: 10.1007/s10965-019-1916-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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