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Wang X, Li K, Yuan Y, Zhang N, Zou Z, Wang Y, Yan S, Li X, Zhao P, Li Q. Nonlinear Elasticity of Blood Vessels and Vascular Grafts. ACS Biomater Sci Eng 2024. [PMID: 38815169 DOI: 10.1021/acsbiomaterials.4c00326] [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: 06/01/2024]
Abstract
The transplantation of vascular grafts has emerged as a prevailing approach to address vascular disorders. However, the development of small-diameter vascular grafts is still in progress, as they serve in a more complicated mechanical environment than their counterparts with larger diameters. The biocompatibility and functional characteristics of small-diameter vascular grafts have been well developed; however, mismatch in mechanical properties between the vascular grafts and native arteries has not been accomplished, which might facilitate the long-term patency of small-diameter vascular grafts. From a point of view in mechanics, mimicking the nonlinear elastic mechanical behavior exhibited by natural blood vessels might be the state-of-the-art in designing vascular grafts. This review centers on elucidating the nonlinear elastic behavior of natural blood vessels and vascular grafts. The biological functionality and limitations associated with as-reported vascular grafts are meticulously reviewed and the future trajectory for fabricating biomimetic small-diameter grafts is discussed. This review might provide a different insight from the traditional design and fabrication of artificial vascular grafts.
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Affiliation(s)
- Xiaofeng Wang
- School of Mechanics and Safety Engineering, National Center for International Research of Micro-nano Molding Technology, Zhengzhou University, Zhengzhou 450001, China
- The State Key Laboratory of Fluid Power and Mechatronic Systems, Zhejiang University, Hangzhou 310027, China
| | - Kecheng Li
- School of Mechanics and Safety Engineering, National Center for International Research of Micro-nano Molding Technology, Zhengzhou University, Zhengzhou 450001, China
| | - Yuan Yuan
- School of Mechanics and Safety Engineering, National Center for International Research of Micro-nano Molding Technology, Zhengzhou University, Zhengzhou 450001, China
| | - Ning Zhang
- School of Mechanics and Safety Engineering, National Center for International Research of Micro-nano Molding Technology, Zhengzhou University, Zhengzhou 450001, China
| | - Zifan Zou
- School of Mechanics and Safety Engineering, National Center for International Research of Micro-nano Molding Technology, Zhengzhou University, Zhengzhou 450001, China
| | - Yun Wang
- School of Mechanics and Safety Engineering, National Center for International Research of Micro-nano Molding Technology, Zhengzhou University, Zhengzhou 450001, China
| | - Shujie Yan
- School of Mechanics and Safety Engineering, National Center for International Research of Micro-nano Molding Technology, 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
| | - Peng Zhao
- The State Key Laboratory of Fluid Power and Mechatronic Systems, Zhejiang University, Hangzhou 310027, China
| | - 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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Hayasaka M, Kokudo T, Kaneko J, Chiyoda T, Nakamura A, Itoh M, Endo K, Nakayama K, Hasegawa K. Three-Dimensional Bio-Printed Tubular Tissue Using Dermal Fibroblast Cells as a New Tissue-Engineered Vascular Graft for Venous Replacement. ASAIO J 2024:00002480-990000000-00474. [PMID: 38701402 DOI: 10.1097/mat.0000000000002224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/05/2024] Open
Abstract
The current study was a preliminary evaluation of the feasibility and biologic features of three-dimensionally bio-printed tissue-engineered (3D bio-printed) vascular grafts comprising dermal fibroblast spheroids for venous replacement in rats and swine. The scaffold-free tubular tissue was made by the 3D bio-printer with normal human dermal fibroblasts. The tubular tissues were implanted into the infrarenal inferior vena cava of 4 male F344-rnu/rnu athymic nude rats and the short-term patency and histologic features were analyzed. A larger 3D bio-printed swine dermal fibroblast-derived prototype of tubular tissue was implanted into the right jugular vein of a swine and patency was evaluated at 4 weeks. The short-term patency rate was 100%. Immunohistochemistry analysis showed von Willebrand factor positivity on day 2, with more limited positivity observed on the luminal surface on day 5. Although the cross-sectional area of the wall differed significantly between preimplantation and days 2 and 5, suggesting swelling of the tubular tissue wall (both p < 0.01), the luminal diameter of the tubular tissues was not significantly altered during this period. The 3D bio-printed scaffold-free tubular tissues using human dermal or swine fibroblast spheroids may produce better tissue-engineered vascular grafts for venous replacement in rats or swine.
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Affiliation(s)
- Makoto Hayasaka
- From the Hepato-Biliary-Pancreatic Surgery Division, Department of Surgery, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Takashi Kokudo
- From the Hepato-Biliary-Pancreatic Surgery Division, Department of Surgery, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Junichi Kaneko
- From the Hepato-Biliary-Pancreatic Surgery Division, Department of Surgery, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Takehiro Chiyoda
- From the Hepato-Biliary-Pancreatic Surgery Division, Department of Surgery, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Anna Nakamura
- Center for Regenerative Medicine Research, Faculty of Medicine, SAGA University, Saga, Japan
| | - Manabu Itoh
- Faculty of Medicine, Department of Thoracic and Cardiovascular Surgery, Saga University, Saga, Japan
| | - Kazuhiro Endo
- Department of Surgery, Division of Gastroenterological, General and Transplant Surgery Jichi Medical University, Tochigi, Japan
| | - Koichi Nakayama
- Center for Regenerative Medicine Research, Faculty of Medicine, SAGA University, Saga, Japan
| | - Kiyoshi Hasegawa
- From the Hepato-Biliary-Pancreatic Surgery Division, Department of Surgery, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
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Girardin L, Stokes C, Thet MS, Oo AY, Balabani S, Díaz-Zuccarini V. Patient-Specific Haemodynamic Analysis of Virtual Grafting Strategies in Type-B Aortic Dissection: Impact of Compliance Mismatch. Cardiovasc Eng Technol 2024:10.1007/s13239-024-00713-6. [PMID: 38438692 DOI: 10.1007/s13239-024-00713-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Accepted: 01/02/2024] [Indexed: 03/06/2024]
Abstract
INTRODUCTION Compliance mismatch between the aortic wall and Dacron Grafts is a clinical problem concerning aortic haemodynamics and morphological degeneration. The aortic stiffness introduced by grafts can lead to an increased left ventricular (LV) afterload. This study quantifies the impact of compliance mismatch by virtually testing different Type-B aortic dissection (TBAD) surgical grafting strategies in patient-specific, compliant computational fluid dynamics (CFD) simulations. MATERIALS AND METHODS A post-operative case of TBAD was segmented from computed tomography angiography data. Three virtual surgeries were generated using different grafts; two additional cases with compliant grafts were assessed. Compliant CFD simulations were performed using a patient-specific inlet flow rate and three-element Windkessel outlet boundary conditions informed by 2D-Flow MRI data. The wall compliance was calibrated using Cine-MRI images. Pressure, wall shear stress (WSS) indices and energy loss (EL) were computed. RESULTS Increased aortic stiffness and longer grafts increased aortic pressure and EL. Implementing a compliant graft matching the aortic compliance of the patient reduced the pulse pressure by 11% and EL by 4%. The endothelial cell activation potential (ECAP) differed the most within the aneurysm, where the maximum percentage difference between the reference case and the mid (MDA) and complete (CDA) descending aorta replacements increased by 16% and 20%, respectively. CONCLUSION This study suggests that by minimising graft length and matching its compliance to the native aorta whilst aligning with surgical requirements, the risk of LV hypertrophy may be reduced. This provides evidence that compliance-matching grafts may enhance patient outcomes.
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Affiliation(s)
- Louis Girardin
- Department of Mechanical Engineering, University College London, Torrington Place, London, WC1E 7JE, UK
- Wellcome/EPSRC Centre for Interventional and Surgical Sciences (WEISS), University College London, 43-45 Foley Street, London, W1W 7TS, UK
| | - Catriona Stokes
- Department of Mechanical Engineering, University College London, Torrington Place, London, WC1E 7JE, UK
- Wellcome/EPSRC Centre for Interventional and Surgical Sciences (WEISS), University College London, 43-45 Foley Street, London, W1W 7TS, UK
| | - Myat Soe Thet
- Department of Cardiothoracic Surgery, St Bartholomew's Hospital, West Smithfield, London, EC1A 7BE, UK
| | - Aung Ye Oo
- Department of Cardiothoracic Surgery, St Bartholomew's Hospital, West Smithfield, London, EC1A 7BE, UK
| | - Stavroula Balabani
- Department of Mechanical Engineering, University College London, Torrington Place, London, WC1E 7JE, UK
- Wellcome/EPSRC Centre for Interventional and Surgical Sciences (WEISS), University College London, 43-45 Foley Street, London, W1W 7TS, UK
| | - Vanessa Díaz-Zuccarini
- Department of Mechanical Engineering, University College London, Torrington Place, London, WC1E 7JE, UK.
- Wellcome/EPSRC Centre for Interventional and Surgical Sciences (WEISS), University College London, 43-45 Foley Street, London, W1W 7TS, UK.
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Zhang W, Fukazawa K, Mahara A, Jiang H, Yamaoka T. Photo-induced universal modification of small-diameter decellularized blood vessels with a hemocompatible peptide improves in vivo patency. Acta Biomater 2024; 176:116-127. [PMID: 38232911 DOI: 10.1016/j.actbio.2024.01.012] [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: 07/14/2023] [Revised: 01/07/2024] [Accepted: 01/10/2024] [Indexed: 01/19/2024]
Abstract
Decellularized vessels (DVs) have the potential to serve as available grafts for small-diameter vascular (<6 mm) reconstruction. However, the absence of functional endothelia makes them likely to trigger platelet aggregation and thrombosis. Luminal surface modification is an efficient approach to prevent thrombosis and promote endothelialization. Previously, we identified a hemocompatible peptide, HGGVRLY, that showed endothelial affinity and antiplatelet ability. By conjugating HGGVRLY with a phenylazide group, we generated a photoreactive peptide that can be modified onto multiple materials, including non-denatured extracellular matrices. To preserve the natural collagen of DVs as much as possible, we used a lower ultrahydrostatic pressure than that previously reported to prepare decellularized grafts. The photoreactive HGGVRLY peptide could be modified onto DV grafts via UV exposure for only 2 min. Modified DVs showed improved endothelial affinity and antiplatelet ability in vitro. When rat abdominal aortas were replaced with DVs, modified DVs with more natural collagen demonstrated the highest patent rate after 10 weeks. Moreover, the photoreactive peptide remained on the lumen surface of DVs over two months after implantation. Therefore, the photoreactive peptide could be efficiently and sustainably modified onto DVs with more natural collagens, resulting in improved hemocompatibility. STATEMENT OF SIGNIFICANCE: We employed a relatively lower ultrahydrostatic pressure to prepare decellularized vessels (DVs) with less denatured collagens to provide a more favorable environment for cell migration and proliferation. The hemocompatibility of DV luminal surface can be enhanced by peptide modification, but undenatured collagens are difficult to modify. We innovatively introduce a phenylazide group into the hemocompatible peptide HGGVRLY, which we previously identified to possess endothelial affinity and antiplatelet ability, to generate a photoreactive peptide. The photoreactive peptide can be efficiently and stably modified onto DVs with more natural collagens. DV grafts modified with photoreactive peptide exhibit enhanced in vivo patency. Furthermore, the sustainability of photoreactive peptide modification on DV grafts within bloodstream is evident after two months of transplantation.
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Affiliation(s)
- Wei Zhang
- Department of Biomedical Engineering, National Cerebral and Cardiovascular Center, Osaka, Japan; Plastic Surgery Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing China
| | - Kyoko Fukazawa
- Department of Biomedical Engineering, National Cerebral and Cardiovascular Center, Osaka, Japan
| | - Atsushi Mahara
- Department of Biomedical Engineering, National Cerebral and Cardiovascular Center, Osaka, Japan
| | - Haiyue Jiang
- Plastic Surgery Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing China
| | - Tetsuji Yamaoka
- Department of Biomedical Engineering, National Cerebral and Cardiovascular Center, Osaka, Japan.
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Federici AS, Tornifoglio B, Lally C, Garcia O, Kelly DJ, Hoey DA. Melt electrowritten scaffold architectures to mimic tissue mechanics and guide neo-tissue orientation. J Mech Behav Biomed Mater 2024; 150:106292. [PMID: 38109813 DOI: 10.1016/j.jmbbm.2023.106292] [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: 07/13/2023] [Revised: 08/16/2023] [Accepted: 12/02/2023] [Indexed: 12/20/2023]
Abstract
All human tissues present with unique mechanical properties critical to their function. This is achieved in part through the specific architecture of the extracellular matrix (ECM) fibres within each tissue. An example of this is seen in the walls of the vasculature where each layer presents with a unique ECM orientation critical to its functions. Current adopted vascular grafts to bypass a stenosed/damaged vessel fail to recapitulate this unique mechanical behaviour, particularly in the case of small diameter vessels (<6 mm), leading to failure. Therefore, in this study, melt-electrowriting (MEW) was adopted to produce a range of fibrous scaffolds to mimic the extracellular matrix (ECM) architecture of the tunica media of the vasculature, in an attempt to match the mechanical and biological behaviour of the native porcine tissue. Initially, the range of collagen architectures within the native vessel was determined, and subsequently replicated using MEW (winding angles (WA) 45°, 26.5°, 18.4°, 11.3°). These scaffolds recapitulated the anisotropic, non-linear mechanical behaviour of native carotid blood vessels. Moreover, these grafts facilitated human mesenchymal stem cell (hMSC) infiltration, differentiation, and ECM deposition that was independent of WA. The bioinspired MEW fibre architecture promoted cell alignment and preferential neo-tissue orientation in a manner similar to that seen in native tissue, particularly for WA 18.4° and 11.3°, which is a mandatory requirement for long-term survival of the regenerated tissue post-scaffold degradation. Lastly, the WA 18.4° was translated to a tubular graft and was shown to mirror the mechanical behaviour of small diameter vessels within physiological strain. Taken together, this study demonstrates the capacity to use MEW to fabricate bioinspired scaffolds to mimic the tunica media of vessels and recapitulate vascular mechanics which could act as a framework for small diameter graft development to guide tissue regeneration and orientation.
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Affiliation(s)
- Angelica S Federici
- Dept. of Mechanical, Manufacturing and Biomedical Engineering, School of Engineering, Trinity College Dublin, Ireland; Trinity Centre for Biomedical Engineering, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland; AMBER, The SFI Research Centre for Advanced Materials and BioEngineering Research, Ireland
| | - Brooke Tornifoglio
- Dept. of Mechanical, Manufacturing and Biomedical Engineering, School of Engineering, Trinity College Dublin, Ireland; Trinity Centre for Biomedical Engineering, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland
| | - Caitríona Lally
- Dept. of Mechanical, Manufacturing and Biomedical Engineering, School of Engineering, Trinity College Dublin, Ireland; Trinity Centre for Biomedical Engineering, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland; AMBER, The SFI Research Centre for Advanced Materials and BioEngineering Research, Ireland
| | - Orquidea Garcia
- Johnson & Johnson 3D Printing Innovation & Customer Solutions, Johnson & Johnson Services, Inc., Irvine, CA, USA
| | - Daniel J Kelly
- Dept. of Mechanical, Manufacturing and Biomedical Engineering, School of Engineering, Trinity College Dublin, Ireland; Trinity Centre for Biomedical Engineering, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland; AMBER, The SFI Research Centre for Advanced Materials and BioEngineering Research, Ireland
| | - David A Hoey
- Dept. of Mechanical, Manufacturing and Biomedical Engineering, School of Engineering, Trinity College Dublin, Ireland; Trinity Centre for Biomedical Engineering, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland; AMBER, The SFI Research Centre for Advanced Materials and BioEngineering Research, Ireland.
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Cevik M, Dikici S. Development of tissue-engineered vascular grafts from decellularized parsley stems. SOFT MATTER 2024; 20:338-350. [PMID: 38088147 DOI: 10.1039/d3sm01236k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2024]
Abstract
Cardiovascular diseases are mostly associated with narrowing or blockage of blood vessels, and it is the most common cause of death worldwide. The use of vascular grafts is a promising approach to bypass or replace the blocked vessels for long-term treatment. Although autologous arteries or veins are the most preferred tissue sources for vascular bypass, the limited presence and poor quality of autologous vessels necessitate seeking alternative biomaterials. Recently, synthetic grafts have gained attention as an alternative to autologous grafts. However, the high failure rate of synthetic grafts has been reported primarily due to thrombosis, atherosclerosis, intimal hyperplasia, or infection. Thrombosis, the main reason for failure upon implantation, is associated with damage or absence of endothelial cell lining in the vascular graft's luminal surface. To overcome this, tissue-engineered vascular grafts (TEVGs) have come into prominence. Alongside the well-established scaffold manufacturing techniques, decellularized plant-based constructs have recently gained significant importance and are an emerging field in tissue engineering and regenerative medicine. Accordingly, in this study, we demonstrated the fabrication of tubular scaffolds from decellularized parsley stems and recellularized them with human endothelial cells to be used as a potential TEVG. Our results suggested that the native plant DNA was successfully removed, and soft tubular biomaterials were successfully manufactured via the chemical decellularization of the parsley stems. The decellularized parsley stems showed suitable mechanical and biological properties to be used as a TEVG material, and they provided a suitable environment for the culture of human endothelial cells to attach and create a pseudo endothelium prior to implantation. This study is the first one to demonstrate the potential of the parsley stems to be used as a potential TEVG biomaterial.
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Affiliation(s)
- Merve Cevik
- Department of Biotechnology, Graduate School of Education, Izmir Institute of Technology, 35430, Izmir, Turkey
| | - Serkan Dikici
- Department of Bioengineering, Faculty of Engineering, Izmir Institute of Technology, 35430, Izmir, Turkey.
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West-Livingston L, Lim JW, Lee SJ. Translational tissue-engineered vascular grafts: From bench to bedside. Biomaterials 2023; 302:122322. [PMID: 37713761 DOI: 10.1016/j.biomaterials.2023.122322] [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: 04/05/2023] [Revised: 09/01/2023] [Accepted: 09/09/2023] [Indexed: 09/17/2023]
Abstract
Cardiovascular disease is a primary cause of mortality worldwide, and patients often require bypass surgery that utilizes autologous vessels as conduits. However, the limited availability of suitable vessels and the risk of failure and complications have driven the need for alternative solutions. Tissue-engineered vascular grafts (TEVGs) offer a promising solution to these challenges. TEVGs are artificial vascular grafts made of biomaterials and/or vascular cells that can mimic the structure and function of natural blood vessels. The ideal TEVG should possess biocompatibility, biomechanical mechanical properties, and durability for long-term success in vivo. Achieving these characteristics requires a multi-disciplinary approach involving material science, engineering, biology, and clinical translation. Recent advancements in scaffold fabrication have led to the development of TEVGs with improved functional and biomechanical properties. Innovative techniques such as electrospinning, 3D bioprinting, and multi-part microfluidic channel systems have allowed the creation of intricate and customized tubular scaffolds. Nevertheless, multiple obstacles must be overcome to apply these innovations effectively in clinical practice, including the need for standardized preclinical models and cost-effective and scalable manufacturing methods. This review highlights the fundamental approaches required to successfully fabricate functional vascular grafts and the necessary translational methodologies to advance their use in clinical practice.
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Affiliation(s)
- Lauren West-Livingston
- Wake Forest Institute for Regenerative Medicine, Wake Forest University School of Medicine, Winston-Salem, NC, 27157, USA; Department of Vascular and Endovascular Surgery, Duke University, Durham, NC, 27712, USA
| | - Jae Woong Lim
- Wake Forest Institute for Regenerative Medicine, Wake Forest University School of Medicine, Winston-Salem, NC, 27157, USA; Department of Thoracic and Cardiovascular Surgery, Soonchunhyang University Hospital, Bucheon-Si, Gyeonggi-do, 420-767, Republic of Korea
| | - Sang Jin Lee
- Wake Forest Institute for Regenerative Medicine, Wake Forest University School of Medicine, Winston-Salem, NC, 27157, USA.
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Li Z, Giarto J, Zhang J, Kulkarni N, Mahalingam E, Klipstine W, Turng LS. Anti-thrombotic poly(AAm-co-NaAMPS)-xanthan hydrogel-expanded polytetrafluoroethylene (ePTFE) vascular grafts with enhanced endothelialization and hemocompatibility properties. BIOMATERIALS ADVANCES 2023; 154:213625. [PMID: 37722163 PMCID: PMC10841274 DOI: 10.1016/j.bioadv.2023.213625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 08/23/2023] [Accepted: 09/12/2023] [Indexed: 09/20/2023]
Abstract
Cardiovascular diseases (CVDs) are the leading cause of death among all non-communicable diseases globally. Although expanded polytetrafluoroethylene (ePTFE) has been widely used for larger-diameter vascular graft transplantation, the persistent thrombus formation and intimal hyperplasia of small-diameter vascular grafts (SDVGs) made of ePTFE to treat severe CVDs remain the biggest challenges due to lack of biocompatibility and endothelium. In this study, bi-layered poly(acrylamide-co-2-Acrylamido-2-methyl-1-propanesulfonic acid sodium)-xanthan hydrogel-ePTFE (poly(AAm-co-NaAMPS)-xanthan hydrogel-ePTFE) vascular grafts capable of promoting endothelialization and prohibiting thrombosis were synthesized and fabricated. While the external ePTFE layer of the vascular grafts provided the mechanical stability, the inner hydrogel layer offered much-needed cytocompatibility, hemocompatibility, and endothelialization functions. The interface morphology between the inner hydrogel layer and the outer ePTFE layer was observed by scanning electron microscope (SEM), which revealed that the hydrogel was well attached to the porous ePTFE through mechanical interlocking. Among all the hydrogel compositions tested with cell culture using human umbilical vein endothelial cells (HUVECs), the hydrogel with the molar ratio of 40:60 (NaAMPS/AAm) composition (i.e., Hydrogel 40:60) exhibited the best endothelialization function, as it produced the largest endothelialization area that was three times more than of that of plain ePTFE on day 14, maintained the highest average cell viability, and had the best cell morphology. Hydrogel 40:60 also showed excellent hemocompatibility, prolonged activated partial thromboplastin time (aPTT), and good mechanical properties. Overall, bi-layered poly(AAm-co-NaAMPS)-xanthan hydrogel-ePTFE vascular grafts with the Hydrogel 40:60 composition could potentially solve the critical challenge of thrombus formation in vascular graft transplantation applications.
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Affiliation(s)
- Zhutong Li
- Department of Mechanical Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA; Wisconsin Institute for Discovery, University of Wisconsin-Madison, Madison, WI 53715, USA
| | - Joshua Giarto
- Wisconsin Institute for Discovery, University of Wisconsin-Madison, Madison, WI 53715, USA; Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Jue Zhang
- Morgridge Institute for Research, University of Wisconsin-Madison, Madison, WI 53715, USA
| | - Neha Kulkarni
- Wisconsin Institute for Discovery, University of Wisconsin-Madison, Madison, WI 53715, USA; Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Esha Mahalingam
- Wisconsin Institute for Discovery, University of Wisconsin-Madison, Madison, WI 53715, USA; College of Letters and Science, University of Wisconsin-Madison, Madison, WI, 53706, USA
| | - Will Klipstine
- Department of Mechanical Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA; Wisconsin Institute for Discovery, University of Wisconsin-Madison, Madison, WI 53715, USA
| | - Lih-Sheng Turng
- Department of Mechanical Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA; Wisconsin Institute for Discovery, University of Wisconsin-Madison, Madison, WI 53715, USA; Department of Mechanical Engineering, Chang Gung University, Tao-Yuan 33302, Taiwan.
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Wang H, Xia H, Yang W, Xu Z, Natsuki T, Ni QQ. Improving the Performance of Poly(caprolactone)-Cellulose Acetate-Tannic Acid Tubular Scaffolds by Mussel-Inspired Coating. Biomacromolecules 2023; 24:4138-4147. [PMID: 37640397 DOI: 10.1021/acs.biomac.3c00493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/31/2023]
Abstract
Small-diameter artificial blood vessels are increasingly being used in clinical practice. However, these vessels are prone to thrombus, and it is necessary to improve blood compatibility. Surface coating is one of the commonly used methods in this regard. Inspired by the biomimicry of mussels, the use of deposition technology to obtain coating coverage on the surface of fibers has significantly piqued the interest of researchers recently. In this study, tubular scaffolds consisting of a composite of poly(caprolactone), cellulose acetate, and tannic acid (TA) were electrospun, and then the scaffolds were treated with different Fe(III) solutions (iron(III) chloride hexahydrate (FeCl3'6H2O)) to obtain four tubular scaffolds: F0, F5, F15, and F45. According to scanning electron microscopy (SEM) and field emission-SEM results, TA/Fe(III) complex is coated on the fiber of the scaffold after post-treatment; the fiber surface morphology changes with different Fe(III) concentrations. This provides designability to the performance of tubular scaffolds. The tensile strength of the F5 tubular scaffold (3.33 MPa) is higher than that of F45 (3.14 MPa), while the strain (83.9%) of the F45 tubular stent was 2.26 times that of the F5 (37.2%). In addition, cytotoxicity and antithrombotic performance were evaluated. The test results show that surface TA/Fe(III) coating treatment can affect the cytotoxicity and anticoagulation performance of the scaffold surface. The biomimetic TA/Fe(III) coating of mussels used in this study improves the performance of artificial blood vessels.
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Affiliation(s)
- Hao Wang
- Interdisciplinary Graduate School of Science and Technology, Shinshu University, Ueda 386-8567, Japan
| | - Hong Xia
- Department of Mechanical Engineering and Robotics, Shinshu University, Ueda 386-8567, Japan
| | - Wendan Yang
- Interdisciplinary Graduate School of Science and Technology, Shinshu University, Ueda 386-8567, Japan
| | - Zhenzhen Xu
- College of Textiles and Garments, Anhui Polytechnic University, Wuhu, 241000 Anhui, China
| | - Toshiaki Natsuki
- Institute for Fiber Engineering (IFES), Interdisciplinary Cluster for Cutting Edge Research (ICCER), Shinshu University, 3-15-1 Tokida, Ueda, Nagano 386-8567, Japan
- Faculty of Textile Science and Technology, Shinshu University, 3-15-1 Tokida, Ueda 386-8567, Japan
| | - Qing-Qing Ni
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, China
- Department of Mechanical Engineering and Robotics, Shinshu University, Ueda 386-8567, Japan
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10
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Main EN, Cruz TM, Bowlin GL. Mitochondria as a therapeutic: a potential new frontier in driving the shift from tissue repair to regeneration. Regen Biomater 2023; 10:rbad070. [PMID: 37663015 PMCID: PMC10468651 DOI: 10.1093/rb/rbad070] [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: 05/24/2023] [Revised: 07/12/2023] [Accepted: 08/08/2023] [Indexed: 09/05/2023] Open
Abstract
Fibrosis, or scar tissue development, is associated with numerous pathologies and is often considered a worst-case scenario in terms of wound healing or the implantation of a biomaterial. All that remains is a disorganized, densely packed and poorly vascularized bundle of connective tissue, which was once functional tissue. This creates a significant obstacle to the restoration of tissue function or integration with any biomaterial. Therefore, it is of paramount importance in tissue engineering and regenerative medicine to emphasize regeneration, the successful recovery of native tissue function, as opposed to repair, the replacement of the native tissue (often with scar tissue). A technique dubbed 'mitochondrial transplantation' is a burgeoning field of research that shows promise in in vitro, in vivo and various clinical applications in preventing cell death, reducing inflammation, restoring cell metabolism and proper oxidative balance, among other reported benefits. However, there is currently a lack of research regarding the potential for mitochondrial therapies within tissue engineering and regenerative biomaterials. Thus, this review explores these promising findings and outlines the potential for mitochondrial transplantation-based therapies as a new frontier of scientific research with respect to driving regeneration in wound healing and host-biomaterial interactions, the current successes of mitochondrial transplantation that warrant this potential and the critical questions and remaining obstacles that remain in the field.
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Affiliation(s)
- Evan N Main
- Department of Biomedical Engineering, University of Memphis, 330 Engineering Technology Building, Memphis, TN 38152, USA
| | - Thaiz M Cruz
- Department of Biomedical Engineering, University of Memphis, 330 Engineering Technology Building, Memphis, TN 38152, USA
| | - Gary L Bowlin
- Department of Biomedical Engineering, University of Memphis, 330 Engineering Technology Building, Memphis, TN 38152, USA
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Rajendran S, Nguyen CL, Brown KGM, Solomon MJ. Clinical algorithm for the management of advanced pelvic tumours involving the aortoiliac axis. EUROPEAN JOURNAL OF SURGICAL ONCOLOGY 2023; 49:1317-1319. [PMID: 36964055 DOI: 10.1016/j.ejso.2023.03.207] [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: 02/17/2023] [Accepted: 03/09/2023] [Indexed: 03/13/2023]
Abstract
Pelvic exenteration offers potentially curative treatment for locally advanced and recurrent pelvic tumours. Laterally infiltrating tumours involving the pelvic sidewall have historically been considered unresectable. Highly specialised exenteration units have accumulated experience with en bloc resection of part or all of the iliac vascular system for tumours with major vessel involvement. These approaches involve complex vascular dissection and reconstructive techniques requiring collaboration with the vascular surgery unit. Adding to the complexity is the paucity of evidence on oncovascular techniques in the pelvis given its developing nature. An algorithm for the workup to determine resectability and the vascular reconstruction approach for advanced pelvic tumours involving the aortoiliac axis is suggested based on current literature and personal experience from the authors' unit.
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Affiliation(s)
- Saissan Rajendran
- Department of Vascular Surgery, Concord Repatriation General Hospital, Sydney, Australia; Department of Colorectal Surgery, Royal Prince Alfred Hospital, Sydney, Australia; Surgical Outcomes Research Centre (SOuRCe), Sydney, Australia; University of Sydney, New South Wales, Australia
| | - Chu Luan Nguyen
- Department of Vascular Surgery, Concord Repatriation General Hospital, Sydney, Australia; University of Sydney, New South Wales, Australia
| | - Kilian G M Brown
- Department of Colorectal Surgery, Royal Prince Alfred Hospital, Sydney, Australia; Surgical Outcomes Research Centre (SOuRCe), Sydney, Australia; The Institute of Academic Surgery at RPA, Sydney, Australia; University of Sydney, New South Wales, Australia
| | - Michael J Solomon
- Department of Colorectal Surgery, Royal Prince Alfred Hospital, Sydney, Australia; Surgical Outcomes Research Centre (SOuRCe), Sydney, Australia; The Institute of Academic Surgery at RPA, Sydney, Australia; University of Sydney, New South Wales, Australia.
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12
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Leyssens L, Balcaen T, Pétréa M, Ayllón NB, Aazmani WE, de Pierpont A, Pyka G, Lacroix V, Kerckhofs G. Non-destructive 3D characterization of the blood vessel wall microstructure in different species and blood vessel types using contrast-enhanced microCT and comparison with synthetic vascular grafts. Acta Biomater 2023; 164:303-316. [PMID: 37072066 DOI: 10.1016/j.actbio.2023.04.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 03/14/2023] [Accepted: 04/07/2023] [Indexed: 04/20/2023]
Abstract
To improve the current treatment for vascular diseases, such as vascular grafts, intravascular stents, and balloon angioplasty intervention, the evaluation of the native blood vessel microstructure in full 3D could be beneficial. For this purpose, we used contrast-enhanced X-ray microfocus computed tomography (CECT): a combination of X-ray microfocus computed tomography (microCT) and contrast-enhancing staining agents (CESAs) containing high atomic number elements. In this work, we performed a comparative study based on staining time and contrast-enhancement of 2 CESAs: Monolacunary and 1:2 Hafnium-substituted Wells-Dawson polyoxometalate (Mono-WD POM and Hf-WD POM, respectively) for imaging of the porcine aorta. After showing the advantages of Hf-WD POM in terms of contrast enhancement, we expanded our imaging to other species (rat, porcine, and human) and other types of blood vessels (porcine aorta, femoral artery, and vena cava), clearly indicating microstructural differences between different types of blood vessels and different species. We then showed the possibility to extract useful 3D quantitative information from the rat and porcine aortic wall, potentially to be used for computational modeling or for future design optimization of graft materials. Finally, a structural comparison with existing synthetic vascular grafts was made. This information will allow to better understand the in vivo functioning of native blood vessels and to improve the current disease treatments. STATEMENT OF SIGNIFICANCE: Synthetic vascular grafts, used as treatment for some cardiovascular diseases, still often fail clinically, potentially because of a mismatch in mechanical behaviour between the native blood vessel and the graft. To better understand the causes of this mismatch, we studied the full 3D microstructure of blood vessels. For this, we identified Hafnium-substituted Wells-Dawson polyoxometalate as contrast-enhancing staining agent to perform contrast-enhanced X-ray microfocus computed tomography. This technique allowed to show important differences in the microstructure of different types of blood vessels and in different species, as well as with that of synthetic grafts. This information can lead to a better understanding of the functioning of blood vessels and will allow to improve current disease treatments, such as vascular grafts.
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Affiliation(s)
- Lisa Leyssens
- Mechatronic, Electrical Energy and Dynamic Systems, Institute of Mechanics, Materials, and Civil Engineering, UCLouvain, 1348 Louvain-la-Neuve, Belgium; Pole of Morphology, Institute of Experimental and Clinical Research, UCLouvain, 1200 Woluwe-Saint-Lambert, Belgium
| | - Tim Balcaen
- Mechatronic, Electrical Energy and Dynamic Systems, Institute of Mechanics, Materials, and Civil Engineering, UCLouvain, 1348 Louvain-la-Neuve, Belgium; Pole of Morphology, Institute of Experimental and Clinical Research, UCLouvain, 1200 Woluwe-Saint-Lambert, Belgium; MolDesignS, Sustainable Chemistry for Metals and Molecules, Department of Chemistry, KU Leuven, 3001 Leuven, Belgium
| | - Maïté Pétréa
- Department BioMechanics, KU Leuven, 3001 Leuven, Belgium
| | - Natalia Béjar Ayllón
- Mechatronic, Electrical Energy and Dynamic Systems, Institute of Mechanics, Materials, and Civil Engineering, UCLouvain, 1348 Louvain-la-Neuve, Belgium
| | - Walid El Aazmani
- Pole of Morphology, Institute of Experimental and Clinical Research, UCLouvain, 1200 Woluwe-Saint-Lambert, Belgium
| | - Alix de Pierpont
- Mechatronic, Electrical Energy and Dynamic Systems, Institute of Mechanics, Materials, and Civil Engineering, UCLouvain, 1348 Louvain-la-Neuve, Belgium
| | - Grzegorz Pyka
- Mechatronic, Electrical Energy and Dynamic Systems, Institute of Mechanics, Materials, and Civil Engineering, UCLouvain, 1348 Louvain-la-Neuve, Belgium; Pole of Morphology, Institute of Experimental and Clinical Research, UCLouvain, 1200 Woluwe-Saint-Lambert, Belgium
| | - Valérie Lacroix
- Pole of Cardiovascular Research, Institute of Experimental and Clinical Research, UCLouvain, 1200 Woluwe-Saint-Lambert, Belgium; Cliniques Universitaires Saint-Luc, Service de chirurgie cardiovasculaire et thoracique, 1200 Woluwe-Saint-Lambert, Belgium
| | - Greet Kerckhofs
- Mechatronic, Electrical Energy and Dynamic Systems, Institute of Mechanics, Materials, and Civil Engineering, UCLouvain, 1348 Louvain-la-Neuve, Belgium; Pole of Morphology, Institute of Experimental and Clinical Research, UCLouvain, 1200 Woluwe-Saint-Lambert, Belgium; Department of Materials Engineering, KU Leuven, 3001 Leuven, Belgium; Prometheus, Division of Skeletal Tissue Engineering, KU Leuven, 3000 Leuven, Belgium.
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13
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Xue YT, Chen MY, Cao JS, Wang L, Hu JH, Li SY, Shen JL, Li XG, Zhang KH, Hao SQ, Juengpanich S, Cheng SB, Wong TW, Yang XX, Li TF, Cai XJ, Yang W. Adhesive cryogel particles for bridging confined and irregular tissue defects. Mil Med Res 2023; 10:15. [PMID: 36949519 PMCID: PMC10035260 DOI: 10.1186/s40779-023-00451-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Accepted: 03/05/2023] [Indexed: 03/24/2023] Open
Abstract
BACKGROUND Reconstruction of damaged tissues requires both surface hemostasis and tissue bridging. Tissues with damage resulting from physical trauma or surgical treatments may have arbitrary surface topographies, making tissue bridging challenging. METHODS This study proposes a tissue adhesive in the form of adhesive cryogel particles (ACPs) made from chitosan, acrylic acid, 1-Ethyl-3-(3-dimethylaminopropyl) carbodiimide (EDC) and N-hydroxysuccinimide (NHS). The adhesion performance was examined by the 180-degree peel test to a collection of tissues including porcine heart, intestine, liver, muscle, and stomach. Cytotoxicity of ACPs was evaluated by cell proliferation of human normal liver cells (LO2) and human intestinal epithelial cells (Caco-2). The degree of inflammation and biodegradability were examined in dorsal subcutaneous rat models. The ability of ACPs to bridge irregular tissue defects was assessed using porcine heart, liver, and kidney as the ex vivo models. Furthermore, a model of repairing liver rupture in rats and an intestinal anastomosis in rabbits were established to verify the effectiveness, biocompatibility, and applicability in clinical surgery. RESULTS ACPs are applicable to confined and irregular tissue defects, such as deep herringbone grooves in the parenchyma organs and annular sections in the cavernous organs. ACPs formed tough adhesion between tissues [(670.9 ± 50.1) J/m2 for the heart, (607.6 ± 30.0) J/m2 for the intestine, (473.7 ± 37.0) J/m2 for the liver, (186.1 ± 13.3) J/m2 for muscle, and (579.3 ± 32.3) J/m2 for the stomach]. ACPs showed considerable cytocompatibility in vitro study, with a high level of cell viability for 3 d [(98.8 ± 1.2) % for LO2 and (98.3 ± 1.6) % for Caco-2]. It has comparable inflammation repair in a ruptured rat liver (P = 0.58 compared with suture closure), the same with intestinal anastomosis in rabbits (P = 0.40 compared with suture anastomosis). Additionally, ACPs-based intestinal anastomosis (less than 30 s) was remarkably faster than the conventional suturing process (more than 10 min). When ACPs degrade after surgery, the tissues heal across the adhesion interface. CONCLUSIONS ACPs are promising as the adhesive for clinical operations and battlefield rescue, with the capability to bridge irregular tissue defects rapidly.
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Affiliation(s)
- Yao-Ting Xue
- Department of Engineering Mechanics, Zhejiang University, Hangzhou, 310027, China
- Key Laboratory of Soft Machines and Smart Devices of Zhejiang Province, Zhejiang University, Hangzhou, 310027, China
- Center for X-Mechanics, Department of Engineering Mechanics, Zhejiang University, Hangzhou, 310027, China
| | - Ming-Yu Chen
- Department of General Surgery, Sir Run-Run Shaw Hospital, Zhejiang University, Hangzhou, 310016, China
| | - Jia-Sheng Cao
- Department of General Surgery, Sir Run-Run Shaw Hospital, Zhejiang University, Hangzhou, 310016, China
| | - Lei Wang
- Department of Engineering Mechanics, Zhejiang University, Hangzhou, 310027, China
- Key Laboratory of Soft Machines and Smart Devices of Zhejiang Province, Zhejiang University, Hangzhou, 310027, China
- Center for X-Mechanics, Department of Engineering Mechanics, Zhejiang University, Hangzhou, 310027, China
| | - Jia-Hao Hu
- Department of General Surgery, Sir Run-Run Shaw Hospital, Zhejiang University, Hangzhou, 310016, China
| | - Si-Yang Li
- Department of Engineering Mechanics, Zhejiang University, Hangzhou, 310027, China
- Key Laboratory of Soft Machines and Smart Devices of Zhejiang Province, Zhejiang University, Hangzhou, 310027, China
- Center for X-Mechanics, Department of Engineering Mechanics, Zhejiang University, Hangzhou, 310027, China
| | - Ji-Liang Shen
- Department of General Surgery, Sir Run-Run Shaw Hospital, Zhejiang University, Hangzhou, 310016, China
| | - Xin-Ge Li
- Department of Engineering Mechanics, Zhejiang University, Hangzhou, 310027, China
- Key Laboratory of Soft Machines and Smart Devices of Zhejiang Province, Zhejiang University, Hangzhou, 310027, China
- Center for X-Mechanics, Department of Engineering Mechanics, Zhejiang University, Hangzhou, 310027, China
| | - Kai-Hang Zhang
- Department of Engineering Mechanics, Zhejiang University, Hangzhou, 310027, China
- Key Laboratory of Soft Machines and Smart Devices of Zhejiang Province, Zhejiang University, Hangzhou, 310027, China
- Center for X-Mechanics, Department of Engineering Mechanics, Zhejiang University, Hangzhou, 310027, China
| | - Shu-Qiang Hao
- Key Laboratory of Soft Machines and Smart Devices of Zhejiang Province, Zhejiang University, Hangzhou, 310027, China
| | - Sarun Juengpanich
- Department of General Surgery, Sir Run-Run Shaw Hospital, Zhejiang University, Hangzhou, 310016, China
| | - Si-Bo Cheng
- Soft Intelligent Materials Co., Ltd, Suzhou, 215123, China
| | - Tuck-Whye Wong
- Center for X-Mechanics, Department of Engineering Mechanics, Zhejiang University, Hangzhou, 310027, China
- School of Biomedical Engineering and Health Sciences and Advanced Membrane Technology Research Centre, Universiti Teknologi Malaysia, 81310, Skudai, Malaysia
| | - Xu-Xu Yang
- Department of Engineering Mechanics, Zhejiang University, Hangzhou, 310027, China.
- Key Laboratory of Soft Machines and Smart Devices of Zhejiang Province, Zhejiang University, Hangzhou, 310027, China.
- Center for X-Mechanics, Department of Engineering Mechanics, Zhejiang University, Hangzhou, 310027, China.
| | - Tie-Feng Li
- Department of Engineering Mechanics, Zhejiang University, Hangzhou, 310027, China
- Key Laboratory of Soft Machines and Smart Devices of Zhejiang Province, Zhejiang University, Hangzhou, 310027, China
- Center for X-Mechanics, Department of Engineering Mechanics, Zhejiang University, Hangzhou, 310027, China
| | - Xiu-Jun Cai
- Department of General Surgery, Sir Run-Run Shaw Hospital, Zhejiang University, Hangzhou, 310016, China
| | - Wei Yang
- Department of Engineering Mechanics, Zhejiang University, Hangzhou, 310027, China
- Key Laboratory of Soft Machines and Smart Devices of Zhejiang Province, Zhejiang University, Hangzhou, 310027, China
- Center for X-Mechanics, Department of Engineering Mechanics, Zhejiang University, Hangzhou, 310027, China
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Falkner F, Mayer SA, Thomas B, Zimmermann SO, Walter S, Heimel P, Thiele W, Sleeman JP, Bigdeli AK, Kiss H, Podesser BK, Kneser U, Bergmeister H, Schneider KH. Acellular Human Placenta Small-Diameter Vessels as a Favorable Source of Super-Microsurgical Vascular Replacements: A Proof of Concept. Bioengineering (Basel) 2023; 10:337. [PMID: 36978728 PMCID: PMC10045636 DOI: 10.3390/bioengineering10030337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 02/19/2023] [Accepted: 02/27/2023] [Indexed: 03/30/2023] Open
Abstract
In this study, we aimed to evaluate the human placenta as a source of blood vessels that can be harvested for vascular graft fabrication in the submillimeter range. Our approach included graft modification to prevent thrombotic events. Submillimeter arterial grafts harvested from the human placenta were decellularized and chemically crosslinked to heparin. Graft performance was evaluated using a microsurgical arteriovenous loop (AVL) model in Lewis rats. Specimens were evaluated through hematoxylin-eosin and CD31 staining of histological sections to analyze host cell immigration and vascular remodeling. Graft patency was determined 3 weeks after implantation using a vascular patency test, histology, and micro-computed tomography. A total of 14 human placenta submillimeter vessel grafts were successfully decellularized and implanted into AVLs in rats. An appropriate inner diameter to graft length ratio of 0.81 ± 0.16 mm to 7.72 ± 3.20 mm was achieved in all animals. Grafts were left in situ for a mean of 24 ± 4 days. Decellularized human placental grafts had an overall patency rate of 71% and elicited no apparent immunological responses. Histological staining revealed host cell immigration into the graft and re-endothelialization of the vessel luminal surface. This study demonstrates that decellularized vascular grafts from the human placenta have the potential to serve as super-microsurgical vascular replacements.
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Affiliation(s)
- Florian Falkner
- Department of Hand, Plastic and Reconstructive Surgery, BG Trauma Center Ludwigshafen, University of Heidelberg, 69117 Heidelberg, Germany
| | - Simon Andreas Mayer
- Department of Hand, Plastic and Reconstructive Surgery, BG Trauma Center Ludwigshafen, University of Heidelberg, 69117 Heidelberg, Germany
| | - Benjamin Thomas
- Department of Hand, Plastic and Reconstructive Surgery, BG Trauma Center Ludwigshafen, University of Heidelberg, 69117 Heidelberg, Germany
| | - Sarah Onon Zimmermann
- Center for Biomedical Research and Translational Surgery, Medical University of Vienna, 1090 Vienna, Austria
| | - Sonja Walter
- Department of Hand, Plastic and Reconstructive Surgery, BG Trauma Center Ludwigshafen, University of Heidelberg, 69117 Heidelberg, Germany
| | - Patrick Heimel
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, 1200 Vienna, Austria
- Core Facility Hard Tissue and Biomaterial Research, Karl Donath Laboratory, University Clinic of Dentistry, Medical University of Vienna, 1090 Vienna, Austria
| | - Wilko Thiele
- Department of Microvascular Biology and Pathobiology, European Center for Angioscience (ECAS), Medical Faculty Mannheim, University of Heidelberg, 68167 Mannheim, Germany
| | - Jonathan Paul Sleeman
- Department of Microvascular Biology and Pathobiology, European Center for Angioscience (ECAS), Medical Faculty Mannheim, University of Heidelberg, 68167 Mannheim, Germany
- Institute for Biological and Chemical Systems, Karlsruhe Institute of Technology, Campus North, 76131 Karlsruhe, Germany
| | - Amir Khosrow Bigdeli
- Department of Hand, Plastic and Reconstructive Surgery, BG Trauma Center Ludwigshafen, University of Heidelberg, 69117 Heidelberg, Germany
| | - Herbert Kiss
- Department of Obstetrics and Gynecology, Division of Obstetrics and Feto-Maternal Medicine, Medical University of Vienna, 1090 Vienna, Austria
| | - Bruno Karl Podesser
- Center for Biomedical Research and Translational Surgery, Medical University of Vienna, 1090 Vienna, Austria
- Department of Obstetrics and Gynecology, Division of Obstetrics and Feto-Maternal Medicine, Medical University of Vienna, 1090 Vienna, Austria
| | - Ulrich Kneser
- Department of Hand, Plastic and Reconstructive Surgery, BG Trauma Center Ludwigshafen, University of Heidelberg, 69117 Heidelberg, Germany
| | - Helga Bergmeister
- Center for Biomedical Research and Translational Surgery, Medical University of Vienna, 1090 Vienna, Austria
- Ludwig Boltzmann Institute for Cardiovascular Research, 1090 Vienna, Austria
- Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria
| | - Karl Heinrich Schneider
- Center for Biomedical Research and Translational Surgery, Medical University of Vienna, 1090 Vienna, Austria
- Ludwig Boltzmann Institute for Cardiovascular Research, 1090 Vienna, Austria
- Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria
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15
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Bertsch C, Maréchal H, Gribova V, Lévy B, Debry C, Lavalle P, Fath L. Biomimetic Bilayered Scaffolds for Tissue Engineering: From Current Design Strategies to Medical Applications. Adv Healthc Mater 2023:e2203115. [PMID: 36807830 DOI: 10.1002/adhm.202203115] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 01/17/2023] [Indexed: 02/20/2023]
Abstract
Tissue damage due to cancer, congenital anomalies, and injuries needs new efficient treatments that allow tissue regeneration. In this context, tissue engineering shows a great potential to restore the native architecture and function of damaged tissues, by combining cells with specific scaffolds. Scaffolds made of natural and/or synthetic polymers and sometimes ceramics play a key role in guiding cell growth and formation of the new tissues. Monolayered scaffolds, which consist of uniform material structure, are reported as not being sufficient to mimic complex biological environment of the tissues. Osteochondral, cutaneous, vascular, and many other tissues all have multilayered structures, therefore multilayered scaffolds seem more advantageous to regenerate these tissues. In this review, recent advances in bilayered scaffolds design applied to regeneration of vascular, bone, cartilage, skin, periodontal, urinary bladder, and tracheal tissues are focused on. After a short introduction on tissue anatomy, composition and fabrication techniques of bilayered scaffolds are explained. Then, experimental results obtained in vitro and in vivo are described, and their limitations are given. Finally, difficulties in scaling up production of bilayer scaffolds and reaching the stage of clinical studies are discussed when multiple scaffold components are used.
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Affiliation(s)
- Christelle Bertsch
- Institut National de la Santé et de la Recherche Médicale, Inserm UMR_S 1121 Biomaterials and Bioengineering, Centre de Recherche en Biomédecine de Strasbourg, 1 rue Eugène Boeckel, Strasbourg, 67000, France
| | - Hélène Maréchal
- Service d'ORL et de Chirurgie Cervico-Faciale, Hôpitaux Universitaires de Strasbourg, 1 avenue Molière, Strasbourg, 67200, France
| | - Varvara Gribova
- Institut National de la Santé et de la Recherche Médicale, Inserm UMR_S 1121 Biomaterials and Bioengineering, Centre de Recherche en Biomédecine de Strasbourg, 1 rue Eugène Boeckel, Strasbourg, 67000, France
| | - Benjamin Lévy
- Institut National de la Santé et de la Recherche Médicale, Inserm UMR_S 1121 Biomaterials and Bioengineering, Centre de Recherche en Biomédecine de Strasbourg, 1 rue Eugène Boeckel, Strasbourg, 67000, France
| | - Christian Debry
- Institut National de la Santé et de la Recherche Médicale, Inserm UMR_S 1121 Biomaterials and Bioengineering, Centre de Recherche en Biomédecine de Strasbourg, 1 rue Eugène Boeckel, Strasbourg, 67000, France.,Service d'ORL et de Chirurgie Cervico-Faciale, Hôpitaux Universitaires de Strasbourg, 1 avenue Molière, Strasbourg, 67200, France
| | - Philippe Lavalle
- Institut National de la Santé et de la Recherche Médicale, Inserm UMR_S 1121 Biomaterials and Bioengineering, Centre de Recherche en Biomédecine de Strasbourg, 1 rue Eugène Boeckel, Strasbourg, 67000, France
| | - Léa Fath
- Institut National de la Santé et de la Recherche Médicale, Inserm UMR_S 1121 Biomaterials and Bioengineering, Centre de Recherche en Biomédecine de Strasbourg, 1 rue Eugène Boeckel, Strasbourg, 67000, France.,Service d'ORL et de Chirurgie Cervico-Faciale, Hôpitaux Universitaires de Strasbourg, 1 avenue Molière, Strasbourg, 67200, France
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16
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Wang H, Xia H, Xu Z, Natsuki T, Ni QQ. Effect of surface structure on the antithrombogenicity performance of poly(-caprolactone)-cellulose acetate small-diameter tubular scaffolds. Int J Biol Macromol 2023; 226:132-142. [PMID: 36470437 DOI: 10.1016/j.ijbiomac.2022.11.315] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 11/08/2022] [Accepted: 11/29/2022] [Indexed: 12/12/2022]
Abstract
Small-diameter artificial blood vessels have always faced the problem of thrombosis. In this research, three types of poly(-caprolactone)-cellulose acetate (PCL-CA) composite nanofiber membranes were prepared by various collectors to make into a tubular scaffold with a 4.5-mm diameter. The collector consisted of two sizes of stainless steel wire mesh large-mesh (LM) and small-mesh (SM), respectively. There is also a random flat (RF) that acts as the third type collector. The nanofiber membrane's surface structure mimicked the collectors' surface morphology, they named LM, SM and RF scaffolds. The water contact angles of RF and LM scaffolds are 126.5° and 105.5°, and the distinct square-groove construction greatly improves the contact angle of LM. The tubular scaffolds' radial mechanical property test demonstrated that the large-mesh (LM) tubular scaffold enhanced the strain and tensile strength; the tensile strength and strain are 30 % and 148 % higher than that of the random-flat (RF) tubular scaffold, respectively. The suture retention strength value of the LM tubular scaffold was 103 % higher than that of the RF tubular scaffold. The cytotoxicity and antithrombogenicity performance were also evaluated, the LM tubular scaffold has 88 % cell viability, and the 5-min blood coagulation index (BCI) value was 89 %, which is much higher than other tubular scaffolds. The findings indicate that changing the tubular scaffold's surface morphology cannot only enhance the mechanical and hydrophilic properties but also increase cell survival and antithrombogenicity performance. Thus, the development of a small-diameter artificial blood vessel will be a big step toward solving the problem on thrombosis. Furthermore, artificial blood vessel is expected to be a candidate material for biomedical applications.
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Affiliation(s)
- Hao Wang
- Interdisciplinary Graduate School of Science and Technology, Shinshu University, Ueda 386-8567, Japan
| | - Hong Xia
- Department of Mechanical Engineering and Robotics, Shinshu University, Ueda 386-8567, Japan
| | - Zhenzhen Xu
- College of Textiles and Garments, Anhui Polytechnic University, Wuhu 241000, Anhui, China.
| | - Toshiaki Natsuki
- Institute for Fiber Engineering (IFES), Interdisciplinary Cluster for Cutting Edge Research (ICCER), Shinshu University, 3-15-1 Tokida, Ueda, Nagano 386-8567, Japan; Faculty of Textile Science and Technology, Shinshu University, 3-15-1 Tokida, Ueda 386-8567, Japan
| | - Qing-Qing Ni
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, China; Department of Mechanical Engineering and Robotics, Shinshu University, Ueda 386-8567, Japan; Key Laboratory of Advanced Textile Materials and Manufacturing Technology Ministry of Education Zhejiang Sci-Tech University, 310018 Hangzhou, China.
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17
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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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18
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Hsu CN, Lin YT, Chen YH, Tseng TY, Tsai HF, Hong SG, Yao CL. An Aligned Poly(3-hydroxybutyrate-co-3-hydroxyvalerate) Scaffold Fixed with Fibronectin to Enhance the Attachment and Growth of Human Endothelial Progenitor Cells. BIOTECHNOL BIOPROC E 2023. [DOI: 10.1007/s12257-022-0255-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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19
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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: 0] [Impact Index Per Article: 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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20
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Novel structural designs of 3D-printed osteogenic graft for rapid angiogenesis. Biodes Manuf 2022. [DOI: 10.1007/s42242-022-00212-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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21
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Ryu DS, Won DS, Kim JW, Park Y, Kim SH, Kang JM, Zeng CH, Lim D, Choi H, Park JH. Efficacy of thermoplastic polyurethane and gelatin blended nanofibers covered stent graft in the porcine iliac artery. Sci Rep 2022; 12:16524. [PMID: 36192510 PMCID: PMC9529973 DOI: 10.1038/s41598-022-20950-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Accepted: 09/21/2022] [Indexed: 11/09/2022] Open
Abstract
Stent-grafts composed of expanded polytetrafluoroethylene (e-PTFE), polyethylene terephthalate (PET) and polyurethane (PU) are characterized by poor endothelialization, high modulus, and low compliance, leading to thrombosis and intimal hyperplasia. A composite synthetic/natural matrix is considered a promising alternative to conventional synthetic stent-grafts. This study aimed to investigate the efficacy of thermoplastic polyurethane (TPU) and gelatin (GL) blended nanofibers (NFs) covered stent-graft in the porcine iliac artery. Twelve pigs were randomly sacrificed 7 days (n = 6) and 28 days (n = 6) after stent-graft placement. The thrombogenicity score at 28 days was significantly increased compared at 7 days (p < 0.001). The thickness of neointimal hyperplasia, degree of inflammatory cell infiltration, and degree of collagen deposition were significantly higher at 28 days than at 7 days (all p < 0.001). The TPU and GL blended NFs-covered stent-grafts successfully maintained the patency for 28 days in the porcine iliac artery. Although thrombosis with neointimal tissue were observed, no subsequent occlusion of the stent-graft was noted until the end of the study. Composite synthetic/natural matrix-covered stent-grafts may be promising for prolonging stent-graft patency.
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Affiliation(s)
- Dae Sung Ryu
- Biomedical Engineering Research Center, Asan Institute for Life Sciences, Asan Medical Center, 88 Olympic-ro 43-gil, Songpa-gu, Seoul, 05505, Republic of Korea
| | - Dong-Sung Won
- Biomedical Engineering Research Center, Asan Institute for Life Sciences, Asan Medical Center, 88 Olympic-ro 43-gil, Songpa-gu, Seoul, 05505, Republic of Korea
| | - Ji Won Kim
- Biomedical Engineering Research Center, Asan Institute for Life Sciences, Asan Medical Center, 88 Olympic-ro 43-gil, Songpa-gu, Seoul, 05505, Republic of Korea
| | - Yubeen Park
- Biomedical Engineering Research Center, Asan Institute for Life Sciences, Asan Medical Center, 88 Olympic-ro 43-gil, Songpa-gu, Seoul, 05505, Republic of Korea
| | - Song Hee Kim
- Biomedical Engineering Research Center, Asan Institute for Life Sciences, Asan Medical Center, 88 Olympic-ro 43-gil, Songpa-gu, Seoul, 05505, Republic of Korea
| | - Jeon Min Kang
- Biomedical Engineering Research Center, Asan Institute for Life Sciences, Asan Medical Center, 88 Olympic-ro 43-gil, Songpa-gu, Seoul, 05505, Republic of Korea
| | - Chu Hui Zeng
- Biomedical Engineering Research Center, Asan Institute for Life Sciences, Asan Medical Center, 88 Olympic-ro 43-gil, Songpa-gu, Seoul, 05505, Republic of Korea
| | - Dohyung Lim
- Department of Mechanical Engineering, Sejong University, 209, Neungdong-ro, Gwangjin-gu, Seoul, 05006, Republic of Korea
| | - Hyun Choi
- Department of Mechanical Engineering, Sejong University, 209, Neungdong-ro, Gwangjin-gu, Seoul, 05006, Republic of Korea.
| | - Jung-Hoon Park
- Biomedical Engineering Research Center, Asan Institute for Life Sciences, Asan Medical Center, 88 Olympic-ro 43-gil, Songpa-gu, Seoul, 05505, Republic of Korea.
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22
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Wang H, Xia H, Xu Z, Hu B, Natsuki T, Ni QQ. Heat-Stimuli Shape Memory Effect of Poly (ε-Caprolactone)-Cellulose Acetate Composite Tubular Scaffolds. Biomacromolecules 2022; 23:4074-4084. [PMID: 36166624 DOI: 10.1021/acs.biomac.2c00301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Small-diameter artery disease is the most common clinical occurrence, necessitating the development of small-diameter artificial blood vessels. In this study, seven types of poly(-caprolactone)-cellulose acetate (PCL-CA) composite nanofiber membranes were prepared with different proportions of PCL and CA. The adhesion and growth of Mc3t3-e1 cells were considered to confirm the in vitro cytocompatibility of PCL-CA membranes. A smooth stainless-steel mandrel with a diameter of 4 mm was used to roll up the prepared nanofiber membranes to produce the tubular scaffold with 50 °C hot water. The tubular scaffolds were subjected to axial and circumferential tensile tests. The mechanical performance of the PCL-CA tubular scaffold could be improved by increasing the layers. In addition, the burst pressure (BP) of the tubular scaffolds was increased with the layers, and the BPs of six-layer (2380 ± 36.8 mmHg) and eight-layer (3720 ± 80.5 mmHg) tubular scaffolds were much higher than that of the human saphenous vein (2000 mmHg). The compression shape memory performances of the PCL-CA tubular scaffold with different layers were also investigated to simulate and analyze the contraction and expansion of tubular scaffolds. The experimental results showed that the compression strain of the tubular scaffold in the diameter direction reached 35%, and the ultimate shape recovery rate reached 87%. However, the shape fixity rate and shape recovery rate increased, demonstrating that the optimum number of layers can improve the compression shape memory performance of the tubular scaffold. The results of this study, including comprehensive morphological and mechanical properties and cytocompatibility, indicated the potential applicability of PCL-CA tubular scaffolds as tissue engineering grafts.
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Affiliation(s)
- Hao Wang
- Interdisciplinary Graduate School of Science and Technology, Shinshu University, Ueda 386-8567, Japan
| | - Hong Xia
- Department of Mechanical Engineering and Robotics, Shinshu University, Ueda 386-8567, Japan
| | - Zhenzhen Xu
- College of Textiles and Garments, Anhui Polytechnic University, Wuhu 241000, Anhui, China
| | - Baoji Hu
- Interdisciplinary Graduate School of Science and Technology, Shinshu University, Ueda 386-8567, Japan
| | - Toshiaki Natsuki
- Department of Mechanical Engineering and Robotics, Shinshu University, Ueda 386-8567, Japan
| | - Qing-Qing Ni
- International Institute of Fiber Engineering, Shinshu University, Ueda 386-8567, Japan
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23
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van Kampen KA, Fernández-Pérez J, Baker M, Mota C, Moroni L. Fabrication of a mimetic vascular graft using melt spinning with tailorable fiber parameters. BIOMATERIALS ADVANCES 2022; 139:212972. [PMID: 35882129 DOI: 10.1016/j.bioadv.2022.212972] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 05/16/2022] [Accepted: 06/02/2022] [Indexed: 06/15/2023]
Abstract
Smooth muscle cells play a pivotal role in maintaining blood pressure and remodeling of the extracellular matrix. These cells have a characteristic spindle shape and are aligned in the radial direction to aid in the constriction of any artery. Tissue engineered grafts have the potential to recreate this alignment and offer a viable alternative to non-resorbable or autologous grafts. Specifically, with melt spinning small diameter fibers can be created that can align circumferentially on the scaffolds. In this study, a set of simplified equations were formulated to predict the final fiber parameters. Smooth muscle cell alignment was monitored on the fabricated scaffolds. Finally, a co-culture of smooth muscle cells in direct contact with endothelial cells was performed to assess the influence of the smooth muscle cell alignment on the morphology of the endothelial cells. The results show that the equations were able to accurately predict the fiber diameter, distance and angle. Primary vascular smooth muscle cells aligned according to the fiber direction mimicking the native orientation. The co-culture with endothelial cells showed that the aligned smooth muscle cells did not have an influence on the morphology of the endothelial cells. In conclusion, we formulated a series of equations that can predict the fiber parameters during melt spinning. Furthermore, the method described here can create a vascular graft with smooth muscle cells aligned circumferentially that morphologically mimics the native orientation.
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Affiliation(s)
- Kenny A van Kampen
- Department of Complex Tissue Regeneration, MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, Universiteitssingel 40, 6229ER Maastricht, the Netherlands
| | - Julia Fernández-Pérez
- Department of Complex Tissue Regeneration, MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, Universiteitssingel 40, 6229ER Maastricht, the Netherlands
| | - Matthew Baker
- Department of Complex Tissue Regeneration, MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, Universiteitssingel 40, 6229ER Maastricht, the Netherlands
| | - Carlos Mota
- Department of Complex Tissue Regeneration, MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, Universiteitssingel 40, 6229ER Maastricht, the Netherlands
| | - Lorenzo Moroni
- Department of Complex Tissue Regeneration, MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, Universiteitssingel 40, 6229ER Maastricht, the Netherlands.
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24
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Mzyk A, Imbir G, Noguchi Y, Sanak M, Major R, Wiecek J, Kurtyka P, Plutecka H, Trembecka-Wójciga K, Iwasaki Y, Ueda M, Kakinoki S. Dynamic in vitro hemocompatibility of oligoproline self-assembled monolayer surfaces. Biomater Sci 2022; 10:5498-5503. [PMID: 35904349 DOI: 10.1039/d2bm00885h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The blood compatibility of self-assembled monolayers (SAMs) of oligoproline, a nonionic antifouling peptide, was investigated using the cone-and-plate assay imitating arterial blood flow conditions. End-capped oligoprolines composed of 6 and 9 proline residues (Pro6 and Pro9) and a Cys residue were synthesized for preparing SAMs (Pro-SAMs) on Au-sputtered glass. The surface of Pro-SAMs indicated hydrophilic property with a smooth topology. The adsorption of blood components and the adhesion of blood cells, including leukocytes and platelets, were strongly suppressed on Pro-SAMs. Moreover, Pro9-SAM did not trigger the activation of platelets (i.e., the conformational change of GPIIb/IIIa and P-selectin (CD62P) expression on platelets and the formation of aggregates). Our results demonstrate that Pro9-SAM completely inhibited acute thrombogenic responses and the activation of platelets under dynamic conditions.
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Affiliation(s)
- Aldona Mzyk
- Institute of Metallurgy and Materials Science, Polish Academy of Sciences, Reymonta St. 25, 30-059 Cracow, Poland.,Department of Biomedical Engineering, University Medical Center Groningen, Antonius Deusinglaan 1, 9713 AW Groningen, Netherlands.
| | - Gabriela Imbir
- Institute of Metallurgy and Materials Science, Polish Academy of Sciences, Reymonta St. 25, 30-059 Cracow, Poland
| | - Yuri Noguchi
- Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University, 3-3-35 Yamate-cho, Suita, Osaka 564-8680, Japan. .,Organization for Research and Development of Innovative Science and Technology, Kansai University, 3-3-35 Yamate-cho, Suita, Osaka, 564-8680, Japan
| | - Marek Sanak
- Department of Medicine, Jagiellonian University Medical College, Skawińska St. 8, 31-066 Cracow, Poland
| | - Roman Major
- Institute of Metallurgy and Materials Science, Polish Academy of Sciences, Reymonta St. 25, 30-059 Cracow, Poland
| | - Justyna Wiecek
- Institute of Metallurgy and Materials Science, Polish Academy of Sciences, Reymonta St. 25, 30-059 Cracow, Poland
| | - Przemyslaw Kurtyka
- Institute of Metallurgy and Materials Science, Polish Academy of Sciences, Reymonta St. 25, 30-059 Cracow, Poland
| | - Hanna Plutecka
- Department of Medicine, Jagiellonian University Medical College, Skawińska St. 8, 31-066 Cracow, Poland
| | - Klaudia Trembecka-Wójciga
- Institute of Metallurgy and Materials Science, Polish Academy of Sciences, Reymonta St. 25, 30-059 Cracow, Poland
| | - Yasuhiko Iwasaki
- Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University, 3-3-35 Yamate-cho, Suita, Osaka 564-8680, Japan. .,Organization for Research and Development of Innovative Science and Technology, Kansai University, 3-3-35 Yamate-cho, Suita, Osaka, 564-8680, Japan.,Kansai University Medical Polymer Research Center (KUMP-RC), Kansai University, 3-3-35 Yamate-cho, Suita, Osaka 564-8680, Japan
| | - Masato Ueda
- Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University, 3-3-35 Yamate-cho, Suita, Osaka 564-8680, Japan. .,Organization for Research and Development of Innovative Science and Technology, Kansai University, 3-3-35 Yamate-cho, Suita, Osaka, 564-8680, Japan
| | - Sachiro Kakinoki
- Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University, 3-3-35 Yamate-cho, Suita, Osaka 564-8680, Japan. .,Organization for Research and Development of Innovative Science and Technology, Kansai University, 3-3-35 Yamate-cho, Suita, Osaka, 564-8680, Japan.,Kansai University Medical Polymer Research Center (KUMP-RC), Kansai University, 3-3-35 Yamate-cho, Suita, Osaka 564-8680, Japan
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25
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Grémare A, Thibes L, Gluais M, Torres Y, Potart D, Da Silva N, Dusserre N, Fénelon M, Senthilhes L, Lacomme S, Svahn I, Gontier É, Fricain JC, L'Heureux N. Development of a vascular substitute produced by weaving yarn made from human amniotic membrane. Biofabrication 2022; 14. [PMID: 35896106 DOI: 10.1088/1758-5090/ac84ae] [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: 03/15/2022] [Accepted: 07/27/2022] [Indexed: 11/12/2022]
Abstract
Because synthetic vascular prostheses perform poorly in small-diameter revascularization, biological vascular substitutes are being developed as an alternative. Although their in vivo results are promising, their production involves long, complex, and expensive tissue engineering methods. To overcome these limitations, we propose an innovative approach that combines the human amniotic membrane (HAM), which is a widely available and cost-effective biological raw material, with a rapid and robust textile-inspired assembly strategy. Fetal membranes were collected after cesarean deliveries at term. Once isolated by dissection, HAM sheets were cut into ribbons that could be further processed by twisting into threads. Characterization of the HAM yarns (both ribbons and threads) showed that their physical and mechanical properties could be easily tuned. Since our clinical strategy will be to provide an off-the-shelf allogeneic implant, we studied the effects of decellularization and/or gamma sterilization on the histological, mechanical, and biological properties of HAM ribbons. Gamma irradiation of hydrated HAMs, with or without decellularization, did not interfere with the ability of the matrix to support endothelium formation in vitro. Finally, our HAM-based, woven tissue-engineered vascular grafts (TEVGs) exhibited clinically relevant mechanical properties. Thus, this study demonstrates that human, completely biological, allogeneic, small-diameter TEVGs can be produced from HAM, thereby avoiding costly cell culture and bioreactors.
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Affiliation(s)
- Agathe Grémare
- Heath Sciences and Technologies, University of Bordeaux, Campus Carreire, 146, Rue Léo Saignat, Bâtiment 4A, 2ième étage, Case 84, Bordeaux, Aquitaine, 33076, FRANCE
| | - Lisa Thibes
- Heath Sciences and Technologies, University of Bordeaux, Campus Carreire, 146, Rue Léo Saignat, Bâtiment 4A, 2ième étage, Case 84, Bordeaux, Aquitaine, 33076, FRANCE
| | - Maude Gluais
- Heath Sciences and Technologies, University of Bordeaux, Campus Carreire, 146, Rue Léo Saignat, Bâtiment 4A, 2ième étage, Case 84, Bordeaux, Aquitaine, 33076, FRANCE
| | - Yoann Torres
- Heath Sciences and Technologies, University of Bordeaux, Campus Carreire, 146, Rue Léo Saignat, Bâtiment 4A, 2ième étage, Case 84, Bordeaux, Aquitaine, 33076, FRANCE
| | - Diane Potart
- Heath Sciences and Technologies, University of Bordeaux, Campus Carreire, 146, Rue Léo Saignat, Bâtiment 4A, 2ième étage, Case 84, Bordeaux, Aquitaine, 33076, FRANCE
| | - Nicolas Da Silva
- Heath Sciences and Technologies, University of Bordeaux, Campus Carreire, 146, Rue Léo Saignat, Bâtiment 4A, 2ième étage, Case 84, Bordeaux, Aquitaine, 33076, FRANCE
| | - Nathalie Dusserre
- Heath Sciences and Technologies, University of Bordeaux, Campus Carreire, 146, Rue Léo Saignat, Bâtiment 4A, 2ième étage, Case 84, Bordeaux, Aquitaine, 33076, FRANCE
| | - Mathilde Fénelon
- Heath Sciences and Technologies, University of Bordeaux, Campus Carreire, 146, Rue Léo Saignat, Bâtiment 4A, 2ième étage, Case 84, Bordeaux, Aquitaine, 33076, FRANCE
| | - Loïc Senthilhes
- Obstetrics and Gynecology, CHU de Bordeaux, Hopital Pellegrin, 146, Rue Léo Saignat, Bordeaux, Aquitaine, 33076, FRANCE
| | - Sabrina Lacomme
- University of Bordeaux, 146, Rue Léo Saignat, Bordeaux, Aquitaine, 33000, FRANCE
| | - Isabelle Svahn
- University of Bordeaux, 146, Rue Léo Saignat, Bordeaux, Aquitaine, 33000, FRANCE
| | - Étienne Gontier
- University of Bordeaux, 146, Rue Léo Saignat, Bordeaux, Aquitaine, 33000, FRANCE
| | - Jean-Christophe Fricain
- Heath Sciences and Technologies, University of Bordeaux, Campus Carreire, 146, Rue Léo Saignat, Bâtiment 4A, 2ième étage, Case 84, Bordeaux, Aquitaine, 33076, FRANCE
| | - Nicolas L'Heureux
- Heath Sciences and Technologies, University of Bordeaux, Campus Carreire, 146, Rue Léo Saignat, Bâtiment 4A, 2ième étage, Case 84, Bordeaux, Aquitaine, 33076, FRANCE
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26
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Abstract
Cardiovascular defects, injuries, and degenerative diseases often require surgical intervention and the use of implantable replacement material and conduits. Traditional vascular grafts made of synthetic polymers, animal and cadaveric tissues, or autologous vasculature have been utilized for almost a century with well-characterized outcomes, leaving areas of unmet need for the patients in terms of durability and long-term patency, susceptibility to infection, immunogenicity associated with the risk of rejection, and inflammation and mechanical failure. Research to address these limitations is exploring avenues as diverse as gene therapy, cell therapy, cell reprogramming, and bioengineering of human tissue and replacement organs. Tissue-engineered vascular conduits, either with viable autologous cells or decellularized, are the forefront of technology in cardiovascular reconstruction and offer many benefits over traditional graft materials, particularly in the potential for the implanted material to be adopted and remodeled into host tissue and thus offer safer, more durable performance. This review discusses the key advances and future directions in the field of surgical vascular repair, replacement, and reconstruction, with a focus on the challenges and expected benefits of bioengineering human tissues and blood vessels.
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Affiliation(s)
- Kaleb M. Naegeli
- Humacyte, Inc, Durham, NC (K.M.N., M.H.K., Y.L., J.W., E.A.H., L.E.N.)
| | - Mehmet H. Kural
- Humacyte, Inc, Durham, NC (K.M.N., M.H.K., Y.L., J.W., E.A.H., L.E.N.)
| | - Yuling Li
- Humacyte, Inc, Durham, NC (K.M.N., M.H.K., Y.L., J.W., E.A.H., L.E.N.)
| | - Juan Wang
- Humacyte, Inc, Durham, NC (K.M.N., M.H.K., Y.L., J.W., E.A.H., L.E.N.)
| | | | - Laura E. Niklason
- Department of Anesthesiology and Biomedical Engineering, Yale University, New Haven, CT (L.E.N.)
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27
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Kitsuka T, Hama R, Ulziibayar A, Matsuzaki Y, Kelly J, Shinoka T. Clinical Application for Tissue Engineering Focused on Materials. Biomedicines 2022; 10:biomedicines10061439. [PMID: 35740460 PMCID: PMC9220152 DOI: 10.3390/biomedicines10061439] [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: 05/25/2022] [Revised: 06/11/2022] [Accepted: 06/15/2022] [Indexed: 11/16/2022] Open
Abstract
Cardiovascular-related medical conditions remain a significant cause of death worldwide despite the advent of tissue engineering research more than half a century ago. Although autologous tissue is still the preferred treatment, donor tissue is limited, and there remains a need for tissue-engineered vascular grafts (TEVGs). The production of extensive vascular tissue (>1 cm3) in vitro meets the clinical needs of tissue grafts and biological research applications. The use of TEVGs in human patients remains limited due to issues related to thrombogenesis and stenosis. In addition to the advancement of simple manufacturing methods, the shift of attention to the combination of synthetic polymers and bio-derived materials and cell sources has enabled synergistic combinations of vascular tissue development. This review details the selection of biomaterials, cell sources and relevant clinical trials related to large diameter vascular grafts. Finally, we will discuss the remaining challenges in the tissue engineering field resulting from complex requirements by covering both basic and clinical research from the perspective of material design.
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Affiliation(s)
- Takahiro Kitsuka
- Center for Regenerative Medicine, Nationwide Children’s Hospital, Columbus, OH 43205, USA; (T.K.); (R.H.); (A.U.); (Y.M.); (J.K.)
| | - Rikako Hama
- Center for Regenerative Medicine, Nationwide Children’s Hospital, Columbus, OH 43205, USA; (T.K.); (R.H.); (A.U.); (Y.M.); (J.K.)
- Department of Biotechnology and Life Science, Graduate School of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-Cho, Koganei 184-8588, Japan
| | - Anudari Ulziibayar
- Center for Regenerative Medicine, Nationwide Children’s Hospital, Columbus, OH 43205, USA; (T.K.); (R.H.); (A.U.); (Y.M.); (J.K.)
| | - Yuichi Matsuzaki
- Center for Regenerative Medicine, Nationwide Children’s Hospital, Columbus, OH 43205, USA; (T.K.); (R.H.); (A.U.); (Y.M.); (J.K.)
| | - John Kelly
- Center for Regenerative Medicine, Nationwide Children’s Hospital, Columbus, OH 43205, USA; (T.K.); (R.H.); (A.U.); (Y.M.); (J.K.)
| | - Toshiharu Shinoka
- Center for Regenerative Medicine, Nationwide Children’s Hospital, Columbus, OH 43205, USA; (T.K.); (R.H.); (A.U.); (Y.M.); (J.K.)
- Department of Cardiothoracic Surgery, Nationwide Children’s Hospital, Columbus, OH 43205, USA
- Department of Surgery, The Ohio State University Wexner Medical Center, Columbus, OH 43210, USA
- Correspondence: ; Tel.: +1-614-355-5732
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28
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Subash A, Basanth A, Kandasubramanian B. Biodegradable polyphosphazene – hydroxyapatite composites for bone tissue engineering. INT J POLYM MATER PO 2022. [DOI: 10.1080/00914037.2022.2082426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Alsha Subash
- Department of Metallurgical and Materials Engineering, Nano Surface Texturing Laboratory, Defence Institute of Advanced Technology (DU), Ministry of Defence, Pune, Maharashtra, India
| | - Abina Basanth
- Biopolymer Science, CIPET: Institute of Plastics Technology (IPT), Kochi, India
| | - Balasubramanian Kandasubramanian
- Department of Metallurgical and Materials Engineering, Nano Surface Texturing Laboratory, Defence Institute of Advanced Technology (DU), Ministry of Defence, Pune, Maharashtra, India
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29
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Orelaru F, Longi F, Ahmad RA, Naeem A, Wu X, Kim KM, Fukuhara S, Patel H, Michael Deeb G, Yang B. Progression of aortic root based on long-term imaging studies after acute type A dissection repair. J Card Surg 2022; 37:1674-1681. [PMID: 35262974 DOI: 10.1111/jocs.16392] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 02/08/2022] [Accepted: 02/13/2022] [Indexed: 11/28/2022]
Abstract
BACKGROUND To determine the progression of aortic root in acute type A aortic dissection (ATAAD) patients after aortic root repair (ARr) or replacement (ARR) based on long-term follow-up imaging studies. METHODS From 1996 to 2019, 732 patients had ATAAD repair at our institution. Six hundred and seven of these patients had either ARr, (n = 383) or ARR (n = 224). Eighty-one patients were excluded due to a lack of postoperative imaging. Three hundred and thirty-two patients were included in the repair group and 194 patients in the replacement group for long-term follow-up imaging study. RESULTS Compared to the ARR group, the ARr group was significantly older (60 years vs. 55 years) and had more patients with hypertension (79% vs. 63%) but less male patients (63% vs. 79%) and connective tissue disorder (1.8% vs 8%). The ARr group had more zone two arch replacement (22% vs. 11%), similar HCA time (35 min vs. 31 min), shorter cardiopulmonary bypass time (203 min vs. 266 min), aortic cross-clamp time (128 min vs. 214 min), and fewer concomitant coronary artery bypass (3.9% vs. 8.9%). The root growth rate over 12 years was similar between the repair and replacement group (0.20 mm/year vs. 0.18 mm/year, p = .75). Both the repair and replacement group had similar 15-year cumulative incidence of reoperation (6.9% vs. 5.9%; p = .67), operative mortality (7.8% vs. 8.5%; p = .78), and 15-year survival (51% vs. 52%; p = .40). CONCLUSIONS There was minimal growth of the aortic root after root repair or replacement for ATAAD patients. Both aortic root repair and replacement were acceptable techniques for ATAAD surgery in select patients.
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Affiliation(s)
- Felix Orelaru
- Department of General Surgery, St. Joseph Mercy Hospital, Ann Arbor, Michigan, USA
| | - Faraz Longi
- Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
| | | | - Aroma Naeem
- Department of Cardiac Surgery, Michigan Medicine, Ann Arbor, Michigan, USA
| | - Xiaoting Wu
- Department of Cardiac Surgery, Michigan Medicine, Ann Arbor, Michigan, USA
| | - Karen M Kim
- Department of Cardiac Surgery, Michigan Medicine, Ann Arbor, Michigan, USA
| | - Shinichi Fukuhara
- Department of Cardiac Surgery, Michigan Medicine, Ann Arbor, Michigan, USA
| | - Himanshu Patel
- Department of Cardiac Surgery, Michigan Medicine, Ann Arbor, Michigan, USA
| | - G Michael Deeb
- Department of Cardiac Surgery, Michigan Medicine, Ann Arbor, Michigan, USA
| | - Bo Yang
- Department of Cardiac Surgery, Michigan Medicine, Ann Arbor, Michigan, USA
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30
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Chernonosova VS, Laktionov PP. Structural Aspects of Electrospun Scaffolds Intended for Prosthetics of Blood Vessels. Polymers (Basel) 2022; 14:polym14091698. [PMID: 35566866 PMCID: PMC9105676 DOI: 10.3390/polym14091698] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Revised: 04/12/2022] [Accepted: 04/17/2022] [Indexed: 12/28/2022] Open
Abstract
Electrospinning is a popular method used to fabricate small-diameter vascular grafts. However, the importance of structural characteristics of the scaffold determining interaction with endothelial cells and their precursors and blood cells is still not exhaustively clear. This review discusses current research on the significance and impact of scaffold architecture (fiber characteristics, porosity, and surface roughness of material) on interactions between cells and blood with the material. In addition, data about the effects of scaffold topography on cellular behaviour (adhesion, proliferation, and migration) are necessary to improve the rational design of electrospun vascular grafts with a long-term perspective.
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Affiliation(s)
- Vera S. Chernonosova
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch, Russian Academy of Sciences, 630090 Novosibirsk, Russia;
- Meshalkin National Medical Research Center, Ministry of Health of the Russian Federation, 630055 Novosibirsk, Russia
- Correspondence: ; Tel.: +7-(383)-363-51-44
| | - Pavel P. Laktionov
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch, Russian Academy of Sciences, 630090 Novosibirsk, Russia;
- Meshalkin National Medical Research Center, Ministry of Health of the Russian Federation, 630055 Novosibirsk, Russia
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31
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Vascular Remodeling of Clinically Used Patches and Decellularized Pericardial Matrices Recellularized with Autologous or Allogeneic Cells in a Porcine Carotid Artery Model. Int J Mol Sci 2022; 23:ijms23063310. [PMID: 35328732 PMCID: PMC8954945 DOI: 10.3390/ijms23063310] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 03/04/2022] [Accepted: 03/12/2022] [Indexed: 02/04/2023] Open
Abstract
Background: Cardiovascular surgery is confronted by a lack of suitable materials for patch repair. Acellular animal tissues serve as an abundant source of promising biomaterials. The aim of our study was to explore the bio-integration of decellularized or recellularized pericardial matrices in vivo. Methods: Porcine (allograft) and ovine (heterograft, xenograft) pericardia were decellularized using 1% sodium dodecyl sulfate ((1) Allo-decel and (2) Xeno-decel). We used two cell types for pressure-stimulated recellularization in a bioreactor: autologous adipose tissue-derived stromal cells (ASCs) isolated from subcutaneous fat of pigs ((3) Allo-ASC and (4) Xeno-ASC) and allogeneic Wharton’s jelly mesenchymal stem cells (WJCs) ((5) Allo-WJC and (6) Xeno-WJC). These six experimental patches were implanted in porcine carotid arteries for one month. For comparison, we also implanted six types of control patches, namely, arterial or venous autografts, expanded polytetrafluoroethylene (ePTFE Propaten® Gore®), polyethylene terephthalate (PET Vascutek®), chemically stabilized bovine pericardium (XenoSure®), and detoxified porcine pericardium (BioIntegral® NoReact®). The grafts were evaluated through the use of flowmetry, angiography, and histological examination. Results: All grafts were well-integrated and patent with no signs of thrombosis, stenosis, or aneurysm. A histological analysis revealed that the arterial autograft resembled a native artery. All other control and experimental patches developed neo-adventitial inflammation (NAI) and neo-intimal hyperplasia (NIH), and the endothelial lining was present. NAI and NIH were most prominent on XenoSure® and Xeno-decel and least prominent on NoReact®. In xenografts, the degree of NIH developed in the following order: Xeno-decel > Xeno-ASC > Xeno-WJC. NAI and patch resorption increased in Allo-ASC and Xeno-ASC and decreased in Allo-WJC and Xeno-WJC. Conclusions: In our setting, pre-implant seeding with ASC or WJC had a modest impact on vascular patch remodeling. However, ASC increased the neo-adventitial inflammatory reaction and patch resorption, suggesting accelerated remodeling. WJC mitigated this response, as well as neo-intimal hyperplasia on xenografts, suggesting immunomodulatory properties.
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32
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Antunes M, Bonani W, Reis RL, Migliaresi C, Ferreira H, Motta A, Neves NM. Development of alginate-based hydrogels for blood vessel engineering. BIOMATERIALS ADVANCES 2022; 134:112588. [PMID: 35525739 DOI: 10.1016/j.msec.2021.112588] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 11/09/2021] [Accepted: 11/29/2021] [Indexed: 12/12/2022]
Abstract
Vascular diseases are among the primary causes of death worldwide. In serious conditions, replacement of the damaged vessel is required. Autologous grafts are preferred, but their limited availability and difficulty of the harvesting procedures favour synthetic alternatives' use. However, as synthetic grafts may present significant drawbacks, tissue engineering-based solutions are proposed. Herein, tubular hydrogels of alginate combined with collagen type I and/or silk fibroin were prepared by ionotropic gelation using gelatin hydrogel sacrificial moulds loaded with calcium ions (Ca2+). The time of exposure of alginate solutions to Ca2+-loaded gelatin was used to control the wall thickness of the hydrogels (0.47 ± 0.10 mm-1.41 ± 0.21 mm). A second crosslinking step with barium chloride prevented their degradation for a 14 day period and improved mechanical properties by two-fold. Protein leaching tests showed that collagen type I, unlike silk fibroin, was strongly incorporated in the hydrogels. The presence of silk fibroin in the alginate matrix, containing or not collagen, did not significantly improve hydrogels' properties. Conversely, hydrogels enriched only with collagen were able to better support EA.hy926 and MRC-5 cells' growth and characteristic phenotype. These results suggest that a two-step crosslinking procedure combined with the use of collagen type I allow for producing freestanding vascular substitutes with tuneable properties in terms of size, shape and wall thickness.
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Affiliation(s)
- Margarida Antunes
- 3B's Research Group, I3Bs-Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal; ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Walter Bonani
- Department of Industrial Engineering, University of Trento, via Sommarive, 9, 38123 Trento, Italy; BIOtech Research Centre, University of Trento, via delle Regole 101, 38123 Mattarello, Trento, Italy
| | - Rui L Reis
- 3B's Research Group, I3Bs-Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal; ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Claudio Migliaresi
- Department of Industrial Engineering, University of Trento, via Sommarive, 9, 38123 Trento, Italy; BIOtech Research Centre, University of Trento, via delle Regole 101, 38123 Mattarello, Trento, Italy
| | - Helena Ferreira
- 3B's Research Group, I3Bs-Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal; ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Antonella Motta
- Department of Industrial Engineering, University of Trento, via Sommarive, 9, 38123 Trento, Italy; BIOtech Research Centre, University of Trento, via delle Regole 101, 38123 Mattarello, Trento, Italy
| | - Nuno M Neves
- 3B's Research Group, I3Bs-Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal; ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal.
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Koch SE, de Kort BJ, Holshuijsen N, Brouwer HFM, van der Valk DC, Dankers PYW, van Luijk JAKR, Hooijmans CR, de Vries RBM, Bouten CVC, Smits AIPM. Animal studies for the evaluation of in situ tissue-engineered vascular grafts - a systematic review, evidence map, and meta-analysis. NPJ Regen Med 2022; 7:17. [PMID: 35197483 PMCID: PMC8866508 DOI: 10.1038/s41536-022-00211-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Accepted: 01/11/2022] [Indexed: 12/12/2022] Open
Abstract
Vascular in situ tissue engineering (TE) is an approach that uses bioresorbable grafts to induce endogenous regeneration of damaged blood vessels. The evaluation of newly developed in situ TE vascular grafts heavily relies on animal experiments. However, no standard for in vivo models or study design has been defined, hampering inter-study comparisons and translational efficiency. To provide input for formulating such standard, the goal of this study was to map all animal experiments for vascular in situ TE using off-the-shelf available, resorbable synthetic vascular grafts. A literature search (PubMed, Embase) yielded 15,896 studies, of which 182 studies met the inclusion criteria (n = 5,101 animals). The reports displayed a wide variety of study designs, animal models, and biomaterials. Meta-analysis on graft patency with subgroup analysis for species, age, sex, implantation site, and follow-up time demonstrated model-specific variations. This study identifies possibilities for improved design and reporting of animal experiments to increase translational value.
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Affiliation(s)
- Suzanne E Koch
- Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, The Netherlands.,Institute for Complex Molecular Systems (ICMS), Eindhoven University of Technology, Eindhoven, The Netherlands
| | - Bente J de Kort
- Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, The Netherlands.,Institute for Complex Molecular Systems (ICMS), Eindhoven University of Technology, Eindhoven, The Netherlands
| | - Noud Holshuijsen
- Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, The Netherlands.,Institute for Complex Molecular Systems (ICMS), Eindhoven University of Technology, Eindhoven, The Netherlands
| | - Hannah F M Brouwer
- Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, The Netherlands.,Institute for Complex Molecular Systems (ICMS), Eindhoven University of Technology, Eindhoven, The Netherlands
| | - Dewy C van der Valk
- Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, The Netherlands.,Institute for Complex Molecular Systems (ICMS), Eindhoven University of Technology, Eindhoven, The Netherlands
| | - Patricia Y W Dankers
- Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, The Netherlands.,Institute for Complex Molecular Systems (ICMS), Eindhoven University of Technology, Eindhoven, The Netherlands
| | - Judith A K R van Luijk
- SYstematic Review Centre for Laboratory animal Experimentation (SYRCLE), Department for Health Evidence, Radboud Institute for Health Sciences, Radboud UMC, Nijmegen, The Netherlands
| | - Carlijn R Hooijmans
- SYstematic Review Centre for Laboratory animal Experimentation (SYRCLE), Department for Health Evidence, Radboud Institute for Health Sciences, Radboud UMC, Nijmegen, The Netherlands
| | - Rob B M de Vries
- SYstematic Review Centre for Laboratory animal Experimentation (SYRCLE), Department for Health Evidence, Radboud Institute for Health Sciences, Radboud UMC, Nijmegen, The Netherlands
| | - Carlijn V C Bouten
- Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, The Netherlands.,Institute for Complex Molecular Systems (ICMS), Eindhoven University of Technology, Eindhoven, The Netherlands
| | - Anthal I P M Smits
- Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, The Netherlands. .,Institute for Complex Molecular Systems (ICMS), Eindhoven University of Technology, Eindhoven, The Netherlands.
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34
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Preliminary Results on Heparin-Modified Double-Layered PCL and PLA-Based Scaffolds for Tissue Engineering of Small Blood Vessels. J Funct Biomater 2022; 13:jfb13010011. [PMID: 35225974 PMCID: PMC8883969 DOI: 10.3390/jfb13010011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 01/18/2022] [Accepted: 01/24/2022] [Indexed: 01/01/2023] Open
Abstract
Low-diameter blood vessels are challenging to replace with more traditional synthetic vascular grafts. Therefore, the obvious choice is to try to regenerate small veins and arteries through tissue-engineering approaches. However, the layered structure of native vessels and blood compatibility issues make this a very challenging task. The aim of this study is to create double-layered tubular scaffolds with enhanced anticoagulant properties for the tissue engineering of small blood vessels. The scaffolds were made of a polycaprolactone-based porous outer layer and a polylactide-based electrospun inner layer modified with heparin. The combination of thermally induced phase separation and electrospinning resulted in asymmetric scaffolds with improved mechanical properties. The release assay confirmed that heparin is released from the scaffolds. Additionally, anticoagulant activity was shown through APTT (activated partial thromboplastin time) assay. Interestingly, the endothelial cell culture test revealed that after 14 days of culture, HAECs (human aortic endothelial cell lines) tended to organize in chain-like structures, typical for early stages of vascular formation. In the longer culture, HAEC viability was higher for the heparin-modified scaffolds. The proposed scaffold design and composition have great potential for application in tissue engineering of small blood vessels.
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35
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Fluorine-containing bio-inert polymers: Roles of intermediate water. Acta Biomater 2022; 138:34-56. [PMID: 34700043 DOI: 10.1016/j.actbio.2021.10.027] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 10/06/2021] [Accepted: 10/18/2021] [Indexed: 12/13/2022]
Abstract
Fluorine-containing polymers are used not only in industrial processes but also in medical applications, because they exhibit excellent heat, weather, and chemical resistance. As these polymers are not easily degraded in our body, it is difficult to use them in applications that require antithrombotic properties, such as artificial blood vessels. The material used for medical applications should not only be stable in vivo, but it should also be inert to biomolecules such as proteins or cells. In this review, this property is defined as "bio-inert," and previous studies in this field are summarized. Bio-inert materials are less recognized as foreign substances by proteins or cells in the living body, and they must be covered at interfaces designed with the concept of intermediate water (IW). On the basis of this concept, we present here the current understanding of bio-inertness and unusual blood compatibility found in fluoropolymers used in biomedical applications. IW is the water that interacts with materials with moderate strength and has been quantified by a variety of analytical methods and simulations. For example, by using differential scanning calorimetry (DSC) measurements, IW was defined as water frozen at around -40°C. To consider the role of the IW, quantification methods of the hydration state of polymers are also summarized. These investigations have been conducted independently because of the conflict between hydrophobic fluorine and bio-inert properties that require hydrophilicity. In recent years, not many materials have been developed that incorporate the good points of both aspects, and their properties have seldom been linked to the hydration state. This has been critically performed now. Furthermore, fluorine-containing polymers in medical use are reviewed. Finally, this review also describes the molecular design of the recently reported fluorine-containing bio-inert polymers for controlling their hydration state. STATEMENT OF SIGNIFICANCE: A material covered with a hydration layer known as intermediate water that interacts moderately with other objects is difficult to be recognized as a foreign substance and exhibits bio-inert properties. Fluoropolymers show high durability, but conflict with bio-inert characteristics requiring hydrophilicity as these research studies have been conducted independently. On the other hand, materials that combine the advantages of both hydrophobic and hydrophilic features have been developed recently. Here, we summarize the molecular architecture and analysis methods that control intermediate water and provide a guideline for designing novel fluorine-containing bio-inert materials.
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36
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Zhang Y, Zhang M, Cheng D, Xu S, Du C, Xie L, Zhao W. Applications of electrospun scaffolds with enlarged pores in tissue engineering. Biomater Sci 2022; 10:1423-1447. [DOI: 10.1039/d1bm01651b] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Despite electrospinning has multiple advantages over other methods such as creating materials with superfine fiber diameter, high specific surface area, and good mechanical properties, the pore diameter of scaffolds prepared...
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37
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Abstract
There is a tremendous clinical need for synthetic vascular grafts either for bypass procedure or vascular access during hemodialysis. However, currently, there is no small-diameter vascular graft commercially available to meet long-term patency requirement due to frequent thrombus formation and intimal hyperplasia. This chapter describes the fabrication of electrospun small-diameter polycarbonate-urethane (PCU) vascular graft with a biomimetic fibrous structure. Additionally, the surface of the vascular graft is aminated via plasma treatment for the subsequently end-point heparin immobilization to enhance antithrombosis property.
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38
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Durán-Rey D, Crisóstomo V, Sánchez-Margallo JA, Sánchez-Margallo FM. Systematic Review of Tissue-Engineered Vascular Grafts. Front Bioeng Biotechnol 2021; 9:771400. [PMID: 34805124 PMCID: PMC8595218 DOI: 10.3389/fbioe.2021.771400] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Accepted: 10/18/2021] [Indexed: 01/01/2023] Open
Abstract
Pathologies related to the cardiovascular system are the leading causes of death worldwide. One of the main treatments is conventional surgery with autologous transplants. Although donor grafts are often unavailable, tissue-engineered vascular grafts (TEVGs) show promise for clinical treatments. A systematic review of the recent scientific literature was performed using PubMed (Medline) and Web of Science databases to provide an overview of the state-of-the-art in TEVG development. The use of TEVG in human patients remains quite restricted owing to the presence of vascular stenosis, existence of thrombi, and poor graft patency. A total of 92 original articles involving human patients and animal models were analyzed. A meta-analysis of the influence of the vascular graft diameter on the occurrence of thrombosis and graft patency was performed for the different models analyzed. Although there is no ideal animal model for TEVG research, the murine model is the most extensively used. Hybrid grafting, electrospinning, and cell seeding are currently the most promising technologies. The results showed that there is a tendency for thrombosis and non-patency in small-diameter grafts. TEVGs are under constant development, and research is oriented towards the search for safe devices.
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Affiliation(s)
- David Durán-Rey
- Laparoscopy Unit, Jesús Usón Minimally Invasive Surgery Centre, Cáceres, Spain
| | - Verónica Crisóstomo
- Cardiovascular Unit, Jesús Usón Minimally Invasive Surgery Centre, Cáceres, Spain.,Centro de Investigacion Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Instituto de Salud Carlos III, Madrid, Spain
| | - Juan A Sánchez-Margallo
- Bioengineering and Health Technologies Unit, Jesús Usón Minimally Invasive Surgery Centre, Cáceres, Spain
| | - Francisco M Sánchez-Margallo
- Centro de Investigacion Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Instituto de Salud Carlos III, Madrid, Spain.,Scientific Direction, Jesús Usón Minimally Invasive Surgery Centre, Cáceres, Spain
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39
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Wu H, Wang Z, Li M, Liu Q, Li H, Yang H, Sun P, Wei S, Liu Y, Qiao Z, Bai T, Liu W, Bai H. Early Outcomes of Complex Vascular Reconstructions in Lower Extremities Using Spiral and Panel Vein Grafts. Ann Vasc Surg 2021; 81:324-332. [PMID: 34775019 DOI: 10.1016/j.avsg.2021.10.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Revised: 10/03/2021] [Accepted: 10/04/2021] [Indexed: 11/26/2022]
Abstract
BACKGROUND Spiral saphenous vein grafts (SSVG) or paneled vein grafts (PVG) can be used when the diameter of the autologous great saphenous vein does not match the vessel that needs to be repaired. This study aimed to present early results of complex vascular reconstruction with SSVGs and PVGs in the lower extremities. METHODS From May 2019 through January 2021, 6 SSVGs and 3 PVGs were used for vascular reconstruction in 9 patients. Patient data were collected retrospectively, including age, gender, cause of vascular pathology, target vessels, concomitant injury, surgical method, additional surgical methods, and hemodynamic status. The Kaplan-Meier method was used to calculate the rate of freedom from reintervention. RESULTS Among these patients, 7 had trauma, 1 had graft infection, and 1 had vascular reconstruction after tumor excision. The mean duration of follow-up was 6 ± 6.6 months (range 1-19 months). The rate of freedom from reintervention for any reason was 77.8% at 1 year. Two patients underwent amputation after vascular reconstruction with patent vascular reconstructions. One of the 2 amputations was performed because of infection, and the other was due to ischemia >24 hr. The success rate of reconstruction was 100%, and the primary patency rate was 100%. The rate of limb salvage was 77.8%. There was no death, bleeding, embolism, skin ulcers, graft-related complication, or aneurysmal dilation during follow-up. CONCLUSIONS SSVG and PVG were associated with low infection rates and satisfactory short-term patency rates. Both 2 grafts may be good choices when there is a diameter mismatch in vascular reconstructions.
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Affiliation(s)
- Haoliang Wu
- Department of Vascular and Endovascular Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Zhiwei Wang
- Department of Vascular and Endovascular Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Mingxing Li
- Department of Vascular and Endovascular Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Qi Liu
- Emergency Intensive Care Ward, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Hongbin Li
- Department of Intensive Care Unit, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Hongfu Yang
- Department of Intensive Care Unit, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Peng Sun
- Department of Vascular and Endovascular Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Shunbo Wei
- Department of Vascular and Endovascular Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Yuanfeng Liu
- Department of Vascular and Endovascular Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Zhentao Qiao
- Department of Vascular and Endovascular Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Tao Bai
- Department of Vascular and Endovascular Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Weiping Liu
- Department of Vascular and Endovascular Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Hualong Bai
- Department of Vascular and Endovascular Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China; Key Vascular Physiology and Applied Research Laboratory of Zhengzhou City, Zhengzhou, Henan, China.
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40
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Bonito V, Koch SE, Krebber MM, Carvajal-Berrio DA, Marzi J, Duijvelshoff R, Lurier EB, Buscone S, Dekker S, de Jong SMJ, Mes T, Vaessen KRD, Brauchle EM, Bosman AW, Schenke-Layland K, Verhaar MC, Dankers PYW, Smits AIPM, Bouten CVC. Distinct Effects of Heparin and Interleukin-4 Functionalization on Macrophage Polarization and In Situ Arterial Tissue Regeneration Using Resorbable Supramolecular Vascular Grafts in Rats. Adv Healthc Mater 2021; 10:e2101103. [PMID: 34523263 DOI: 10.1002/adhm.202101103] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2021] [Revised: 08/12/2021] [Indexed: 12/16/2022]
Abstract
Two of the greatest challenges for successful application of small-diameter in situ tissue-engineered vascular grafts are 1) preventing thrombus formation and 2) harnessing the inflammatory response to the graft to guide functional tissue regeneration. This study evaluates the in vivo performance of electrospun resorbable elastomeric vascular grafts, dual-functionalized with anti-thrombogenic heparin (hep) and anti-inflammatory interleukin 4 (IL-4) using a supramolecular approach. The regenerative capacity of IL-4/hep, hep-only, and bare grafts is investigated as interposition graft in the rat abdominal aorta, with follow-up at key timepoints in the healing cascade (1, 3, 7 days, and 3 months). Routine analyses are augmented with Raman microspectroscopy, in order to acquire the local molecular fingerprints of the resorbing scaffold and developing tissue. Thrombosis is found not to be a confounding factor in any of the groups. Hep-only-functionalized grafts resulted in adverse tissue remodeling, with cases of local intimal hyperplasia. This is negated with the addition of IL-4, which promoted M2 macrophage polarization and more mature neotissue formation. This study shows that with bioactive functionalization, the early inflammatory response can be modulated and affect the composition of neotissue. Nevertheless, variability between graft outcomes is observed within each group, warranting further evaluation in light of clinical translation.
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Affiliation(s)
- Valentina Bonito
- Department of Biomedical Engineering and Institute for Complex Molecular Systems (ICMS), Eindhoven University of Technology, Eindhoven, 5600 MB, The Netherlands
| | - Suzanne E Koch
- Department of Biomedical Engineering and Institute for Complex Molecular Systems (ICMS), Eindhoven University of Technology, Eindhoven, 5600 MB, The Netherlands
| | - Merle M Krebber
- Department of Nephrology and Hypertension, University Medical Center Utrecht, Utrecht, 3584 CX, The Netherlands
| | - Daniel A Carvajal-Berrio
- Department of Biomedical Engineering, Research Institute of Women's Health and Cluster of Excellence iFIT (EXC 2180) "Image-Guided and Functionally Instructed Tumor Therapies", Eberhard Karls University Tübingen, Tübingen, 72076, Germany
- NMI Natural and Medical Sciences Institute at the University of Tübingen, Reutlingen, 72770, Germany
| | - Julia Marzi
- Department of Biomedical Engineering, Research Institute of Women's Health and Cluster of Excellence iFIT (EXC 2180) "Image-Guided and Functionally Instructed Tumor Therapies", Eberhard Karls University Tübingen, Tübingen, 72076, Germany
- NMI Natural and Medical Sciences Institute at the University of Tübingen, Reutlingen, 72770, Germany
| | - Renee Duijvelshoff
- Department of Biomedical Engineering and Institute for Complex Molecular Systems (ICMS), Eindhoven University of Technology, Eindhoven, 5600 MB, The Netherlands
- Department of Cardiology, Isala Hospital, van Heesweg 2, Zwolle, 8025 AB, The Netherlands
| | - Emily B Lurier
- Department of Biomedical Engineering and Institute for Complex Molecular Systems (ICMS), Eindhoven University of Technology, Eindhoven, 5600 MB, The Netherlands
- School of Biomedical Engineering, Science and Health Systems, Drexel University, Philadelphia, PA, 19104, USA
| | - Serena Buscone
- Department of Biomedical Engineering and Institute for Complex Molecular Systems (ICMS), Eindhoven University of Technology, Eindhoven, 5600 MB, The Netherlands
| | - Sylvia Dekker
- Department of Biomedical Engineering and Institute for Complex Molecular Systems (ICMS), Eindhoven University of Technology, Eindhoven, 5600 MB, The Netherlands
| | - Simone M J de Jong
- Department of Biomedical Engineering and Institute for Complex Molecular Systems (ICMS), Eindhoven University of Technology, Eindhoven, 5600 MB, The Netherlands
| | - Tristan Mes
- SupraPolix BV, Eindhoven, 5612 AX, The Netherlands
| | - Koen R D Vaessen
- Central Laboratory Animal Research Facility (CLARF), Utrecht University, Utrecht, 3584 CX, The Netherlands
| | - Eva M Brauchle
- Department of Biomedical Engineering, Research Institute of Women's Health and Cluster of Excellence iFIT (EXC 2180) "Image-Guided and Functionally Instructed Tumor Therapies", Eberhard Karls University Tübingen, Tübingen, 72076, Germany
- NMI Natural and Medical Sciences Institute at the University of Tübingen, Reutlingen, 72770, Germany
| | | | - Katja Schenke-Layland
- Department of Biomedical Engineering, Research Institute of Women's Health and Cluster of Excellence iFIT (EXC 2180) "Image-Guided and Functionally Instructed Tumor Therapies", Eberhard Karls University Tübingen, Tübingen, 72076, Germany
- NMI Natural and Medical Sciences Institute at the University of Tübingen, Reutlingen, 72770, Germany
| | - Marianne C Verhaar
- Department of Nephrology and Hypertension, University Medical Center Utrecht, Utrecht, 3584 CX, The Netherlands
| | - Patricia Y W Dankers
- Department of Biomedical Engineering and Institute for Complex Molecular Systems (ICMS), Eindhoven University of Technology, Eindhoven, 5600 MB, The Netherlands
| | - Anthal I P M Smits
- Department of Biomedical Engineering and Institute for Complex Molecular Systems (ICMS), Eindhoven University of Technology, Eindhoven, 5600 MB, The Netherlands
| | - Carlijn V C Bouten
- Department of Biomedical Engineering and Institute for Complex Molecular Systems (ICMS), Eindhoven University of Technology, Eindhoven, 5600 MB, The Netherlands
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41
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Bacterial Nanocellulose-Based Grafts for Cell Colonization Studies: An In Vitro Bioreactor Perfusion Model. METHODS IN MOLECULAR BIOLOGY (CLIFTON, N.J.) 2021; 2436:205-222. [PMID: 34505267 DOI: 10.1007/7651_2021_417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
With the aging population, the demand for artificial small diameter vascular grafts is constantly increasing, as the availability of autologous grafts is limited due to vascular diseases. A confluent lining with endothelial cells is considered to be a cornerstone for long-term patency of artificial small diameter grafts. We use bacterial nanocellulose off-the-shelf grafts and describe a detailed methodology to study the ability of these grafts to re-colonize with endothelial cells in an in vitro bioreactor model. The viability of the constructs generated in this process was investigated using established cell culture and tissue engineering methods, which includes WST-1 proliferation assay, AcLDL uptake assay, lactate balancing and histological characterization. The data generated this straight forward methodology allow an initial assessment of the principal prospects of success in forming a stable endothelium in artificial vascular prostheses.
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42
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Stöwe I, Pissarek J, Moosmann P, Pröhl A, Pantermehl S, Bielenstein J, Radenkovic M, Jung O, Najman S, Alkildani S, Barbeck M. Ex Vivo and In Vivo Analysis of a Novel Porcine Aortic Patch for Vascular Reconstruction. Int J Mol Sci 2021; 22:7623. [PMID: 34299243 PMCID: PMC8303394 DOI: 10.3390/ijms22147623] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2021] [Revised: 06/25/2021] [Accepted: 07/13/2021] [Indexed: 01/12/2023] Open
Abstract
(1) Background: The aim of the present study was the biocompatibility analysis of a novel xenogeneic vascular graft material (PAP) based on native collagen won from porcine aorta using the subcutaneous implantation model up to 120 days post implantationem. As a control, an already commercially available collagen-based vessel graft (XenoSure®) based on bovine pericardium was used. Another focus was to analyze the (ultra-) structure and the purification effort. (2) Methods: Established methodologies such as the histological material analysis and the conduct of the subcutaneous implantation model in Wistar rats were applied. Moreover, established methods combining histological, immunohistochemical, and histomorphometrical procedures were applied to analyze the tissue reactions to the vessel graft materials, including the induction of pro- and anti-inflammatory macrophages to test the immune response. (3) Results: The results showed that the PAP implants induced a special cellular infiltration and host tissue integration based on its three different parts based on the different layers of the donor tissue. Thereby, these material parts induced a vascularization pattern that branches to all parts of the graft and altogether a balanced immune tissue reaction in contrast to the control material. (4) Conclusions: PAP implants seemed to be advantageous in many aspects: (i) cellular infiltration and host tissue integration, (ii) vascularization pattern that branches to all parts of the graft, and (iii) balanced immune tissue reaction that can result in less scar tissue and enhanced integrative healing patterns. Moreover, the unique trans-implant vascularization can provide unprecedented anti-infection properties that can avoid material-related bacterial infections.
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Affiliation(s)
- Ignacio Stöwe
- Helios Clinic Emil-von-Behring, Department of Vascular and Endovascular Surgery, 14165 Berlin, Germany;
- Clinic and Policlinic for Dermatology and Venereology, University Medical Center Rostock, 18057 Rostock, Germany; (S.P.); (J.B.); (O.J.)
| | - Jens Pissarek
- biotrics bioimplants AG, 12109 Berlin, Germany; (J.P.); (P.M.)
| | - Pia Moosmann
- biotrics bioimplants AG, 12109 Berlin, Germany; (J.P.); (P.M.)
| | - Annica Pröhl
- BerlinAnalytix GmbH, 12109 Berlin, Germany; (A.P.); (S.A.)
| | - Sven Pantermehl
- Clinic and Policlinic for Dermatology and Venereology, University Medical Center Rostock, 18057 Rostock, Germany; (S.P.); (J.B.); (O.J.)
| | - James Bielenstein
- Clinic and Policlinic for Dermatology and Venereology, University Medical Center Rostock, 18057 Rostock, Germany; (S.P.); (J.B.); (O.J.)
| | - Milena Radenkovic
- Scientific Research Center for Biomedicine, Department for Cell and Tissue Engineering, Faculty of Medicine, University of Niš, 18000 Niš, Serbia; (M.R.); (S.N.)
| | - Ole Jung
- Clinic and Policlinic for Dermatology and Venereology, University Medical Center Rostock, 18057 Rostock, Germany; (S.P.); (J.B.); (O.J.)
| | - Stevo Najman
- Scientific Research Center for Biomedicine, Department for Cell and Tissue Engineering, Faculty of Medicine, University of Niš, 18000 Niš, Serbia; (M.R.); (S.N.)
- Department of Biology and Human Genetics, Faculty of Medicine, University of Niš, 18000 Niš, Serbia
| | - Said Alkildani
- BerlinAnalytix GmbH, 12109 Berlin, Germany; (A.P.); (S.A.)
| | - Mike Barbeck
- Department of Ceramic Materials, Chair of Advanced Ceramic Materials, Institute for Materials Science and Technologies, Technical University Berlin, 10623 Berlin, Germany
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43
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Guan G, Yu C, Fang X, Guidoin R, King MW, Wang H, Wang L. Exploration into practical significance of integral water permeability of textile vascular grafts. J Appl Biomater Funct Mater 2021; 19:22808000211014007. [PMID: 34223772 DOI: 10.1177/22808000211014007] [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: 11/17/2022] Open
Abstract
Water permeability of textile vascular grafts has been considered as a key indicator for predicting blood permeability after implantation. However, a correlation between water and blood permeability has not been established yet. Therefore, even though the water permeability of a vascular graft can be tested according to the standard ISO 7198, the results fail to guide a manufacturer or a surgeon to judge whether this vascular graft needs pre-clotting or not prior to implantation. As a result, all commercial graft products show almost zero water permeability, which leads to the loss of advantages that textile vascular grafts have the pore size-controlled porous wall. To solve this problem, four types of woven vascular grafts were designed and manufactured in the present work. Then their permeability to water, simulated plasma, and anticoagulated whole blood were measured at graded pressures from 8 to 16 kPa. Moreover, the correlations among the water permeability, the simulated plasma permeability, and the anticoagulated whole blood permeability were established. The results suggest that relatively steady correlations exist between the water permeability and the anticoagulated whole blood permeability, and that the evaluation of the blood permeability using the water permeability is feasible and objective. The present work provides a quantitative method for evaluating the blood permeability using the water permeability, and the latter is thus endowed with practical significance for guiding designs and clinical pre-clotting operations of textiles vascular grafts.
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Affiliation(s)
- Guoping Guan
- Engineering Research Center of Technical Textiles of Ministry of Education, College of Textiles, Donghua University, Shanghai, China.,Key Laboratory of Textile Science & Technology of Ministry of Education, College of Textiles, Donghua University, Shanghai, China
| | - Chenglong Yu
- Engineering Research Center of Technical Textiles of Ministry of Education, College of Textiles, Donghua University, Shanghai, China.,Key Laboratory of Textile Science & Technology of Ministry of Education, College of Textiles, Donghua University, Shanghai, China
| | - Xuan Fang
- Key Laboratory of Textile Science & Technology of Ministry of Education, College of Textiles, Donghua University, Shanghai, China
| | - Robert Guidoin
- Key Laboratory of Textile Science & Technology of Ministry of Education, College of Textiles, Donghua University, Shanghai, China.,Department of Surgery, Université Laval and Centre de Recherche du CHU de Quebec, Quebec, QC, Canada
| | - Martin W King
- Key Laboratory of Textile Science & Technology of Ministry of Education, College of Textiles, Donghua University, Shanghai, China.,College of Textiles, North Carolina State University, Raleigh, NC, USA
| | - Hongjun Wang
- Department of Biomedical Engineering, Stevens Institute of Technology, Hoboken, NJ, USA
| | - Lu Wang
- Engineering Research Center of Technical Textiles of Ministry of Education, College of Textiles, Donghua University, Shanghai, China.,Key Laboratory of Textile Science & Technology of Ministry of Education, College of Textiles, Donghua University, Shanghai, China
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44
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Abstract
Choosing the material with the best regeneration potential and properties closest to that of the extracellular matrix is one of the main challenges in tissue engineering and regenerative medicine. Natural polymers, such as collagen, elastin, and cellulose, are widely used for this purpose in tissue engineering. Cellulose derived from bacteria has excellent mechanical properties, high hydrophilicity, crystallinity, and a high degree of polymerization and, therefore, can be used as scaffold/membrane for tissue engineering. In the current study, we reviewed the latest trends in the application of bacterial cellulose (BC) polymers as a scaffold in different types of tissue, including bone, vascular, skin, and cartilage. Also, we mentioned the biological and mechanical advantages and disadvantages of BC polymers. Given the data presented in this study, BC polymer could be suggested as a favorable natural polymer in the design of tissue scaffolds. Implementing novel composites that combine this polymer with other materials through modern or rapid prototyping methods can open up a great prospect in the future of tissue engineering and regenerative medicine.
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45
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Zhang Q, Bosch-Rué È, Pérez RA, Truskey GA. Biofabrication of tissue engineering vascular systems. APL Bioeng 2021; 5:021507. [PMID: 33981941 PMCID: PMC8106537 DOI: 10.1063/5.0039628] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Accepted: 04/02/2021] [Indexed: 12/13/2022] Open
Abstract
Cardiovascular disease (CVD) is the leading cause of death among persons aged 65 and older in the United States and many other developed countries. Tissue engineered vascular systems (TEVS) can serve as grafts for CVD treatment and be used as in vitro model systems to examine the role of various genetic factors during the CVD progressions. Current focus in the field is to fabricate TEVS that more closely resembles the mechanical properties and extracellular matrix environment of native vessels, which depends heavily on the advance in biofabrication techniques and discovery of novel biomaterials. In this review, we outline the mechanical and biological design requirements of TEVS and explore the history and recent advances in biofabrication methods and biomaterials for tissue engineered blood vessels and microvascular systems with special focus on in vitro applications. In vitro applications of TEVS for disease modeling are discussed.
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Affiliation(s)
- Qiao Zhang
- Department of Biomedical Engineering, Duke University, Durham, North Carolina 27708, USA
| | - Èlia Bosch-Rué
- Bioengineering Institute of Technology (BIT), Universitat Internacional de Catalunya (UIC), Sant Cugat del Vallès 08195, Spain
| | - Román A. Pérez
- Bioengineering Institute of Technology (BIT), Universitat Internacional de Catalunya (UIC), Sant Cugat del Vallès 08195, Spain
| | - George A. Truskey
- Department of Biomedical Engineering, Duke University, Durham, North Carolina 27708, USA
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46
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Kuźmińska A, Kwarta D, Ciach T, Butruk-Raszeja BA. Cylindrical Polyurethane Scaffold Fabricated Using the Phase Inversion Method: Influence of Process Parameters on Scaffolds' Morphology and Mechanical Properties. MATERIALS (BASEL, SWITZERLAND) 2021; 14:2977. [PMID: 34072853 PMCID: PMC8198356 DOI: 10.3390/ma14112977] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Revised: 05/23/2021] [Accepted: 05/27/2021] [Indexed: 12/15/2022]
Abstract
This work presents a method of obtaining cylindrical polymer structures with a given diameter (approx. 5 mm) using the phase inversion technique. As part of the work, the influence of process parameters (polymer hardness, polymer solution concentration, the composition of the non-solvent solution, process time) on the scaffolds' morphology was investigated. Additionally, the influence of the addition of porogen on the scaffold's mechanical properties was analyzed. It has been shown that the use of a 20% polymer solution of medium hardness (ChronoFlex C45D) and carrying out the process for 24 h in 0:100 water/ethanol leads to the achievement of repeatable structures with adequate flexibility. Among the three types of porogens tested (NaCl, hexane, polyvinyl alcohol), the most favorable results were obtained for 10% polyvinyl alcohol (PVA). The addition of PVA increases the range of pore diameters and the value of the mean pore diameter (9.6 ± 3.2 vs. 15.2 ± 6.4) while reducing the elasticity of the structure (Young modulus = 3.6 ± 1.5 MPa vs. 9.7 ± 4.3 MPa).
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Affiliation(s)
- Aleksandra Kuźmińska
- Biomedical Engineering Laboratory, Faculty of Chemical and Process Engineering, Warsaw University of Technology, Warynskiego 1, 00-645 Warsaw, Poland; (D.K.); (T.C.); (B.A.B.-R.)
| | - Dominika Kwarta
- Biomedical Engineering Laboratory, Faculty of Chemical and Process Engineering, Warsaw University of Technology, Warynskiego 1, 00-645 Warsaw, Poland; (D.K.); (T.C.); (B.A.B.-R.)
| | - Tomasz Ciach
- Biomedical Engineering Laboratory, Faculty of Chemical and Process Engineering, Warsaw University of Technology, Warynskiego 1, 00-645 Warsaw, Poland; (D.K.); (T.C.); (B.A.B.-R.)
- Centre for Advanced Materials and Technologies CEZAMAT, Warsaw University of Technology, Poleczki 19, 02-822 Warsaw, Poland
| | - Beata A. Butruk-Raszeja
- Biomedical Engineering Laboratory, Faculty of Chemical and Process Engineering, Warsaw University of Technology, Warynskiego 1, 00-645 Warsaw, Poland; (D.K.); (T.C.); (B.A.B.-R.)
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47
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Chen EP, Toksoy Z, Davis BA, Geibel JP. 3D Bioprinting of Vascularized Tissues for in vitro and in vivo Applications. Front Bioeng Biotechnol 2021; 9:664188. [PMID: 34055761 PMCID: PMC8158943 DOI: 10.3389/fbioe.2021.664188] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 04/06/2021] [Indexed: 12/23/2022] Open
Abstract
With a limited supply of organ donors and available organs for transplantation, the aim of tissue engineering with three-dimensional (3D) bioprinting technology is to construct fully functional and viable tissue and organ replacements for various clinical applications. 3D bioprinting allows for the customization of complex tissue architecture with numerous combinations of materials and printing methods to build different tissue types, and eventually fully functional replacement organs. The main challenge of maintaining 3D printed tissue viability is the inclusion of complex vascular networks for nutrient transport and waste disposal. Rapid development and discoveries in recent years have taken huge strides toward perfecting the incorporation of vascular networks in 3D printed tissue and organs. In this review, we will discuss the latest advancements in fabricating vascularized tissue and organs including novel strategies and materials, and their applications. Our discussion will begin with the exploration of printing vasculature, progress through the current statuses of bioprinting tissue/organoids from bone to muscles to organs, and conclude with relevant applications for in vitro models and drug testing. We will also explore and discuss the current limitations of vascularized tissue engineering and some of the promising future directions this technology may bring.
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Affiliation(s)
- Earnest P Chen
- Department of Surgery, School of Medicine, Yale University, New Haven, CT, United States.,Yale College, Yale University, New Haven, CT, United States
| | - Zeren Toksoy
- Department of Surgery, School of Medicine, Yale University, New Haven, CT, United States.,Yale College, Yale University, New Haven, CT, United States
| | - Bruce A Davis
- Department of Surgery, School of Medicine, Yale University, New Haven, CT, United States.,Department of Cellular and Molecular Physiology, School of Medicine, Yale University, New Haven, CT, United States
| | - John P Geibel
- Department of Surgery, School of Medicine, Yale University, New Haven, CT, United States.,Department of Cellular and Molecular Physiology, School of Medicine, Yale University, New Haven, CT, United States
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48
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Nakai K, Hamuro A, Kitada K, Tahara M, Misugi T, Nakano A, Koyama M, Tachibana D. Preliminary evaluation of the short-term outcomes of polytetrafluoroethylene mesh for pelvic organ prolapse. J Obstet Gynaecol Res 2021; 47:2529-2536. [PMID: 33949055 DOI: 10.1111/jog.14795] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 03/13/2021] [Accepted: 04/02/2021] [Indexed: 11/30/2022]
Abstract
AIM Tension-free vaginal mesh (TVM) surgery using synthetic polypropylene (PP) soft mesh had spread rapidly. However, the frequency of mesh-related postoperative complications had increased, and PP was banned in April 2019. In Japan, however, transvaginal surgery using polytetrafluoroethylene (PTFE) mesh had been approved. In this study, we evaluated the clinical outcome and quality of life (QOL) of the postoperative course using PP mesh and PTFE mesh (named "ORIHIME™" ) in a combination surgery for utero-sacral ligament suspension and anterior vaginal support using anterior TVM. METHODS The vaginal hysterectomy and utero-sacral ligament colpopexy augmented by anterior vaginal mesh implants using PP mesh and PTFE mesh were performed on patients with stage III to IV cystocele and uterine prolapse. The clinical outcome and QOL changes in their postoperative course were evaluated by comparing 15 cases of PP mesh and 13 cases of PTFE mesh. RESULTS There was no difference between the PP group and PTFE group in characteristics. No mesh-related complications occurred during the follow-up period. With regard to the pelvic organ prolapse quantification (POP-Q) score, no significant difference was found between the two groups. Comparing the postoperative QOL of both groups, the PTFE group had significantly higher values in two domains than PP group (SF-12v2 questionnaire). CONCLUSIONS We used the world's first PTFE mesh to compare PP mesh with postoperative POP-Q and QOL after the same surgery, with the same operator, and at the same institution. The results showed no significant difference between both mesh materials in the short-term.
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Affiliation(s)
- Kensaku Nakai
- Department of Obstetrics and Gynecology, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - Akihiro Hamuro
- Department of Obstetrics and Gynecology, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - Kohei Kitada
- Department of Obstetrics and Gynecology, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - Mie Tahara
- Department of Obstetrics and Gynecology, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - Takuya Misugi
- Department of Obstetrics and Gynecology, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - Akemi Nakano
- Department of Obstetrics and Gynecology, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - Masayasu Koyama
- Department of Obstetrics and Gynecology, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - Daisuke Tachibana
- Department of Obstetrics and Gynecology, Osaka City University Graduate School of Medicine, Osaka, Japan
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49
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Seiffert N, Tang P, Keshi E, Reutzel-Selke A, Moosburner S, Everwien H, Wulsten D, Napierala H, Pratschke J, Sauer IM, Hillebrandt KH, Struecker B. In vitro recellularization of decellularized bovine carotid arteries using human endothelial colony forming cells. J Biol Eng 2021; 15:15. [PMID: 33882982 PMCID: PMC8059238 DOI: 10.1186/s13036-021-00266-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2020] [Accepted: 04/07/2021] [Indexed: 01/14/2023] Open
Abstract
BACKGROUND Many patients suffering from peripheral arterial disease (PAD) are dependent on bypass surgery. However, in some patients no suitable replacements (i.e. autologous or prosthetic bypass grafts) are available. Advances have been made to develop autologous tissue engineered vascular grafts (TEVG) using endothelial colony forming cells (ECFC) obtained by peripheral blood draw in large animal trials. Clinical translation of this technique, however, still requires additional data for usability of isolated ECFC from high cardiovascular risk patients. Bovine carotid arteries (BCA) were decellularized using a combined SDS (sodium dodecyl sulfate) -free mechanical-osmotic-enzymatic-detergent approach to show the feasibility of xenogenous vessel decellularization. Decellularized BCA chips were seeded with human ECFC, isolated from a high cardiovascular risk patient group, suffering from diabetes, hypertension and/or chronic renal failure. ECFC were cultured alone or in coculture with rat or human mesenchymal stromal cells (rMSC/hMSC). Decellularized BCA chips were evaluated for biochemical, histological and mechanical properties. Successful isolation of ECFC and recellularization capabilities were analyzed by histology. RESULTS Decellularized BCA showed retained extracellular matrix (ECM) composition and mechanical properties upon cell removal. Isolation of ECFC from the intended target group was successfully performed (80% isolation efficiency). Isolated cells showed a typical ECFC-phenotype. Upon recellularization, co-seeding of patient-isolated ECFC with rMSC/hMSC and further incubation was successful for 14 (n = 9) and 23 (n = 5) days. Reendothelialization (rMSC) and partial reendothelialization (hMSC) was achieved. Seeded cells were CD31 and vWF positive, however, human cells were detectable for up to 14 days in xenogenic cell-culture only. Seeding of ECFC without rMSC was not successful. CONCLUSION Using our refined decellularization process we generated easily obtainable TEVG with retained ECM- and mechanical quality, serving as a platform to develop small-diameter (< 6 mm) TEVG. ECFC isolation from the cardiovascular risk target group is possible and sufficient. Survival of diabetic ECFC appears to be highly dependent on perivascular support by rMSC/hMSC under static conditions. ECFC survival was limited to 14 days post seeding.
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Affiliation(s)
- Nicolai Seiffert
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt- Universität zu Berlin, Department of Surgery, Campus Charité Mitte
- Campus Virchow-Klinikum, Augustenburger Platz 1, 13353, Berlin, Germany.,Department for Trauma and Orthopedic Surgery, Vivantes-Hospital Spandau, Berlin, Germany
| | - Peter Tang
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt- Universität zu Berlin, Department of Surgery, Campus Charité Mitte
- Campus Virchow-Klinikum, Augustenburger Platz 1, 13353, Berlin, Germany
| | - Eriselda Keshi
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt- Universität zu Berlin, Department of Surgery, Campus Charité Mitte
- Campus Virchow-Klinikum, Augustenburger Platz 1, 13353, Berlin, Germany
| | - Anja Reutzel-Selke
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt- Universität zu Berlin, Department of Surgery, Campus Charité Mitte
- Campus Virchow-Klinikum, Augustenburger Platz 1, 13353, Berlin, Germany
| | - Simon Moosburner
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt- Universität zu Berlin, Department of Surgery, Campus Charité Mitte
- Campus Virchow-Klinikum, Augustenburger Platz 1, 13353, Berlin, Germany
| | - Hannah Everwien
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt- Universität zu Berlin, Department of Surgery, Campus Charité Mitte
- Campus Virchow-Klinikum, Augustenburger Platz 1, 13353, Berlin, Germany.,Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Germany
| | - Dag Wulsten
- Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Germany.,Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt- Universität zu Berlin, Julius Wolff Institute, Augustenburger Platz 1, 13353, Berlin, Germany
| | - Hendrik Napierala
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt- Universität zu Berlin, Department of Surgery, Campus Charité Mitte
- Campus Virchow-Klinikum, Augustenburger Platz 1, 13353, Berlin, Germany
| | - Johann Pratschke
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt- Universität zu Berlin, Department of Surgery, Campus Charité Mitte
- Campus Virchow-Klinikum, Augustenburger Platz 1, 13353, Berlin, Germany
| | - Igor M Sauer
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt- Universität zu Berlin, Department of Surgery, Campus Charité Mitte
- Campus Virchow-Klinikum, Augustenburger Platz 1, 13353, Berlin, Germany.
| | - Karl H Hillebrandt
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt- Universität zu Berlin, Department of Surgery, Campus Charité Mitte
- Campus Virchow-Klinikum, Augustenburger Platz 1, 13353, Berlin, Germany.,Berlin Institute of Health at Charité - Universitätsmedizin Berlin, BIH Academy, Clinician Scientist Program, Charitéplatz 1, 10117, Berlin, Germany
| | - Benjamin Struecker
- Berlin Institute of Health at Charité - Universitätsmedizin Berlin, BIH Academy, Clinician Scientist Program, Charitéplatz 1, 10117, Berlin, Germany.,Department of General, Visceral and Transplant Surgery, University Hospital Münster, Münster, Germany
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Lim J, Won JY, Ahn CB, Kim J, Kim HJ, Jung JS. Comparison of Hemodynamic Energy between Expanded Polytetrafluoroethylene and Dacron Artificial Vessels. J Chest Surg 2021; 54:81-87. [PMID: 33767024 PMCID: PMC8038878 DOI: 10.5090/jcs.20.134] [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: 10/08/2020] [Revised: 11/20/2020] [Accepted: 11/23/2020] [Indexed: 11/16/2022] Open
Abstract
Background Artificial grafts such as polyethylene terephthalate (Dacron) and expanded polytetrafluoroethylene (ePTFE) are used for various cardiovascular surgical procedures. The compliance properties of prosthetic grafts could affect hemodynamic energy, which can be measured using the energy-equivalent pressure (EEP) and surplus hemodynamic energy (SHE). We investigated changes in the hemodynamic energy of prosthetic grafts. Methods In a simulation test, the changes in EEP for these grafts were estimated using COMSOL MULTIPHYSICS. The Young modulus, Poisson ratio, and density were used to analyze the grafts’ material properties, and pre- and post-graft EEP values were obtained by computing the product of the pressure and velocity. In an in vivo study, Dacron and ePTFE grafts were anastomosed in an end-to-side fashion on the descending thoracic aorta of swine. The pulsatile pump flow was fixed at 2 L/min. Real-time flow and pressure were measured at the distal part of each graft, while clamping the other graft and the descending thoracic aorta. EEP and SHE were calculated and compared. Results In the simulation test, the mean arterial pressure decreased by 39% for all simulations. EEP decreased by 42% for both grafts, and by around 55% for the native blood vessels after grafting. The in vivo test showed no significant difference between both grafts in terms of EEP and SHE. Conclusion The post-graft hemodynamic energy was not different between the Dacron and ePTFE grafts. Artificial grafts are less compliant than native blood vessels; however, they can deliver pulsatile blood flow and hemodynamic energy without any significant energy loss.
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Affiliation(s)
- Jaekwan Lim
- Biomedical Research Center, Korea Testing Laboratory, Jinju, Korea
| | - Jong Yun Won
- Department of Thoracic and Cardiovascular Surgery, Korea University College of Medicine, Seoul, Korea
| | - Chi Bum Ahn
- Biomedical Engineering Research Center, Asan Medical Center, Seoul, Korea
| | - Jieon Kim
- Department of Thoracic and Cardiovascular Surgery, Korea University College of Medicine, Seoul, Korea.,Korea Artificial Organ Center, Korea University, Seoul, Korea
| | - Hee Jung Kim
- Department of Thoracic and Cardiovascular Surgery, Korea University College of Medicine, Seoul, Korea.,Korea Artificial Organ Center, Korea University, Seoul, Korea
| | - Jae Seung Jung
- Department of Thoracic and Cardiovascular Surgery, Korea University College of Medicine, Seoul, Korea.,Korea Artificial Organ Center, Korea University, Seoul, Korea
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