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Jiao J, Zhao X, Li L, Zhu T, Chen X, Ding Q, Chen Z, Xu P, Shi Y, Shao J. The promotion of vascular reconstruction by hierarchical structures in biodegradable small-diameter vascular scaffolds. BIOMATERIALS ADVANCES 2024; 162:213926. [PMID: 38917650 DOI: 10.1016/j.bioadv.2024.213926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2024] [Revised: 05/30/2024] [Accepted: 06/11/2024] [Indexed: 06/27/2024]
Abstract
Tissue engineering of small-diameter vessels remains challenging due to the inadequate ability to promote endothelialization and infiltration of smooth muscle cells (SMCs). Ideal vascular graft is expected to provide the ability to support endothelial monolayer formation and SMCs infiltration. To achieve this, vascular scaffolds with both orientation and dimension hierarchies were prepared, including hierarchically random vascular scaffold (RVS) and aligned vascular scaffold (AVS), by utilizing degradable poly(ε-caprolactone)-co-poly(ethylene glycol) (PCE) and the blend of PCE/gelatin (PCEG) as raw materials. In addition to the orientation hierarchy, dimension hierarchy with small pores in the inner layer and large pores in the outer layer was also constructed in both RVS and AVS to further investigate the promotion of vascular reconstruction by hierarchical structures in vascular scaffolds. The results show that the AVS with an orientation hierarchy that consists with the natural vascular structure had better mechanical properties and promotion effect on the proliferation of vascular cells than RVS, and also exhibited excellent contact guidance effects on cells. While the dimension hierarchy in both RVS and AVS was favorable to the rapid infiltration of SMCs in a short culture time in vitro. Besides, the results of subcutaneous implantation further demonstrate that AVS achieved a fully infiltrated outer layer with wavy elastic fibers-mimic strips formation by day 14, ascribing to hierarchies of aligned orientation and porous dimension. The results further indicate that the scaffolds with both orientation and dimension hierarchical structures have great potential in the application of promoting the vascular reconstruction.
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Affiliation(s)
- Jingjing Jiao
- College of Materials and Metallurgy, Guizhou University, Guiyang, Guizhou 550025, China
| | - Xin Zhao
- College of Materials and Metallurgy, Guizhou University, Guiyang, Guizhou 550025, China
| | - Long Li
- College of Materials and Metallurgy, Guizhou University, Guiyang, Guizhou 550025, China.
| | - Tao Zhu
- College of Materials and Metallurgy, Guizhou University, Guiyang, Guizhou 550025, China
| | - Xing Chen
- Department of Cardiovascular Surgery, Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430071, China
| | - Qiuyue Ding
- Department of Orthopedics, Guizhou Provincial People's Hospital, Guiyang, Guizhou 550000, China
| | - Zhu Chen
- Guiyang Hospital of Stomatology, Guiyang, Guizhou 550002, China
| | - Peng Xu
- College of Materials and Metallurgy, Guizhou University, Guiyang, Guizhou 550025, China
| | - Yan Shi
- College of Materials and Metallurgy, Guizhou University, Guiyang, Guizhou 550025, China
| | - Jiaojing Shao
- College of Materials and Metallurgy, Guizhou University, Guiyang, Guizhou 550025, China
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2
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Sun XH, Jiang HJ, Liu Q, Xiao C, Xu JY, Wu Y, Mei JY, Wu ST, Lin ZY. Low concentrations of TNF-α in vitro transform the phenotype of vascular smooth muscle cells and enhance their survival in a three-dimensional culture system. Artif Organs 2024; 48:839-848. [PMID: 38660762 DOI: 10.1111/aor.14762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 02/29/2024] [Accepted: 04/11/2024] [Indexed: 04/26/2024]
Abstract
BACKGROUND Vascular smooth muscle cells (VSMCs) are commonly used as seed cells in tissue-engineered vascular constructions. However, their variable phenotypes and difficult to control functions pose challenges. This study aimed to overcome these obstacles using a three-dimensional culture system. METHODS Calf VSMCs were administered tumor necrosis factor-alpha (TNF-α) before culturing in two- and three-dimensional well plates and polyglycolic acid (PGA) scaffolds, respectively. The phenotypic markers of VSMCs were detected by immunofluorescence staining and western blotting, and the proliferation and migration abilities of VSMCs were detected by CCK-8, EDU, cell counting, scratch, and Transwell assays. RESULTS TNF-α rapidly decreased the contractile phenotypic markers and elevated the synthetic phenotypic markers of VSMCs, as well as markedly increasing the proliferation and migration ability of VSMCs under two- and three-dimensional culture conditions. CONCLUSIONS TNF-α can rapidly induce a phenotypic shift in VSMCs and change their viability on PGA scaffolds.
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Affiliation(s)
- Xu-Heng Sun
- School of Medicine, South China University of Technology, Guangzhou, Guangdong, P.R. China
- Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, P.R. China
- Institute of Medical Engineering, JIHUA Laboratory, Foshan, Guangdong, P.R. China
| | - Hong-Jing Jiang
- School of Medicine, South China University of Technology, Guangzhou, Guangdong, P.R. China
- Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, P.R. China
- Institute of Medical Engineering, JIHUA Laboratory, Foshan, Guangdong, P.R. China
| | - Qing Liu
- School of Medicine, South China University of Technology, Guangzhou, Guangdong, P.R. China
- Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, P.R. China
- Institute of Medical Engineering, JIHUA Laboratory, Foshan, Guangdong, P.R. China
| | - Cong Xiao
- School of Medicine, South China University of Technology, Guangzhou, Guangdong, P.R. China
- Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, P.R. China
- Institute of Medical Engineering, JIHUA Laboratory, Foshan, Guangdong, P.R. China
| | - Jian-Yi Xu
- School of Medicine, South China University of Technology, Guangzhou, Guangdong, P.R. China
- Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, P.R. China
- Institute of Medical Engineering, JIHUA Laboratory, Foshan, Guangdong, P.R. China
| | - Yindi Wu
- School of Medicine, South China University of Technology, Guangzhou, Guangdong, P.R. China
- Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, P.R. China
- Institute of Medical Engineering, JIHUA Laboratory, Foshan, Guangdong, P.R. China
| | - Jing-Yi Mei
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou, Guangdong, P.R. China
| | - Shu-Ting Wu
- Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, P.R. China
- Department of Cardiology, Guangdong Cardiovascular Institute, Guangzhou, Guangdong, P.R. China
| | - Zhan-Yi Lin
- School of Medicine, South China University of Technology, Guangzhou, Guangdong, P.R. China
- Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, P.R. China
- Institute of Medical Engineering, JIHUA Laboratory, Foshan, Guangdong, P.R. China
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3
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Hernandez-Sanchez D, Comtois-Bona M, Muñoz M, Ruel M, Suuronen EJ, Alarcon EI. Manufacturing and validation of small-diameter vascular grafts: A mini review. iScience 2024; 27:109845. [PMID: 38799581 PMCID: PMC11126982 DOI: 10.1016/j.isci.2024.109845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2024] Open
Abstract
The field of small-diameter vascular grafts remains a challenge for biomaterials scientists. While decades of research have brought us much closer to developing biomimetic materials for regenerating tissues and organs, the physiological challenges involved in manufacturing small conduits that can transport blood while not inducing an immune response or promoting blood clots continue to limit progress in this area. In this short review, we present some of the most recent methods and advancements made by researchers working in the field of small-diameter vascular grafts. We also discuss some of the most critical aspects biomaterials scientists should consider when developing lab-made small-diameter vascular grafts.
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Affiliation(s)
- Deyanira Hernandez-Sanchez
- BioEngineering and Therapeutic Solutions (BEaTS) Research, Division of Cardiac Surgery, University of Ottawa Heart Institute, 40 Ruskin Street, Ottawa, ON K1Y4W7, Canada
| | - Maxime Comtois-Bona
- BioEngineering and Therapeutic Solutions (BEaTS) Research, Division of Cardiac Surgery, University of Ottawa Heart Institute, 40 Ruskin Street, Ottawa, ON K1Y4W7, Canada
| | - Marcelo Muñoz
- BioEngineering and Therapeutic Solutions (BEaTS) Research, Division of Cardiac Surgery, University of Ottawa Heart Institute, 40 Ruskin Street, Ottawa, ON K1Y4W7, Canada
| | - Marc Ruel
- BioEngineering and Therapeutic Solutions (BEaTS) Research, Division of Cardiac Surgery, University of Ottawa Heart Institute, 40 Ruskin Street, Ottawa, ON K1Y4W7, Canada
- Division of Cardiac Surgery, University of Ottawa Heart Institute, 40 Ruskin Street, Ottawa, ON K1Y4W7, Canada
- Department of Cellular & Molecular Medicine, University of Ottawa, Ottawa, 451 Smyth Road, Ottawa ON K1H8M5, Canada
| | - Erik J. Suuronen
- BioEngineering and Therapeutic Solutions (BEaTS) Research, Division of Cardiac Surgery, University of Ottawa Heart Institute, 40 Ruskin Street, Ottawa, ON K1Y4W7, Canada
- Department of Cellular & Molecular Medicine, University of Ottawa, Ottawa, 451 Smyth Road, Ottawa ON K1H8M5, Canada
| | - Emilio I. Alarcon
- BioEngineering and Therapeutic Solutions (BEaTS) Research, Division of Cardiac Surgery, University of Ottawa Heart Institute, 40 Ruskin Street, Ottawa, ON K1Y4W7, Canada
- Department of Biochemistry, Microbiology, and Immunology, University of Ottawa, 451 Smyth Road, Ottawa, ON K1H8M5, Canada
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4
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Martinier I, Fage F, Kakar A, Castagnino A, Saindoy E, Frederick J, Onorati I, Besnard V, Barakat AI, Dard N, Martinod E, Planes C, Trichet L, Fernandes FM. Tunable biomimetic materials elaborated by ice templating and self-assembly of collagen for tubular tissue engineering. Biomater Sci 2024; 12:3124-3140. [PMID: 38738995 DOI: 10.1039/d3bm01808c] [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: 05/14/2024]
Abstract
Synthetic tubular grafts currently used in clinical context fail frequently, and the expectations that biomimetic materials could tackle these limitations are high. However, developing tubular materials presenting structural, compositional and functional properties close to those of native tissues remains an unmet challenge. Here we describe a combination of ice templating and topotactic fibrillogenesis of type I collagen, the main component of tissues' extracellular matrix, yielding highly concentrated yet porous tubular collagen materials with controlled hierarchical architecture at multiple length scales, the hallmark of native tissues' organization. By modulating the thermal conductivity of the cylindrical molds, we tune the macroscopic porosity defined by ice. Coupling the aforementioned porosity patterns with two different fibrillogenesis routes results in a new family of tubular materials whose textural features and the supramolecular arrangement of type I collagen are achieved. The resulting materials present hierarchical elastic properties and are successfully colonized by human endothelial cells and alveolar epithelial cells on the luminal side, and by human mesenchymal stem cells on the external side. The proposed straightforward protocol is likely to be adapted for larger graft sizes that address ever-growing clinical needs, such as peripheral arterial disease or tracheal and bronchial reconstructions.
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Affiliation(s)
- Isabelle Martinier
- Laboratoire de Chimie de la Matière Condensée de Paris, Sorbonne Université, 4 place Jussieu, 75005 Paris, France.
| | - Florian Fage
- Laboratoire de Chimie de la Matière Condensée de Paris, Sorbonne Université, 4 place Jussieu, 75005 Paris, France.
| | - Alshaba Kakar
- Laboratoire de Chimie de la Matière Condensée de Paris, Sorbonne Université, 4 place Jussieu, 75005 Paris, France.
| | - Alessia Castagnino
- LadHyX, CNRS, Ecole Polytechnique, Institut Polytechnique de Paris, Palaiseau, France
| | - Emeline Saindoy
- Laboratoire Hypoxie & Poumon, Assistance Publique-Hôpitaux de Paris, Hôpitaux Universitaires Paris Seine-Saint-Denis, Hôpital Avicenne, Chirurgie Thoracique et Vasculaire, Université Paris 13, Sorbonne Paris Cité, UFR Santé, Médecine et Biologie Humaine, Bobigny, France
| | - Joni Frederick
- LadHyX, CNRS, Ecole Polytechnique, Institut Polytechnique de Paris, Palaiseau, France
| | - Ilaria Onorati
- Laboratoire Hypoxie & Poumon, Assistance Publique-Hôpitaux de Paris, Hôpitaux Universitaires Paris Seine-Saint-Denis, Hôpital Avicenne, Chirurgie Thoracique et Vasculaire, Université Paris 13, Sorbonne Paris Cité, UFR Santé, Médecine et Biologie Humaine, Bobigny, France
| | - Valérie Besnard
- Laboratoire Hypoxie & Poumon, Assistance Publique-Hôpitaux de Paris, Hôpitaux Universitaires Paris Seine-Saint-Denis, Hôpital Avicenne, Chirurgie Thoracique et Vasculaire, Université Paris 13, Sorbonne Paris Cité, UFR Santé, Médecine et Biologie Humaine, Bobigny, France
| | - Abdul I Barakat
- LadHyX, CNRS, Ecole Polytechnique, Institut Polytechnique de Paris, Palaiseau, France
| | - Nicolas Dard
- Laboratoire Hypoxie & Poumon, Assistance Publique-Hôpitaux de Paris, Hôpitaux Universitaires Paris Seine-Saint-Denis, Hôpital Avicenne, Chirurgie Thoracique et Vasculaire, Université Paris 13, Sorbonne Paris Cité, UFR Santé, Médecine et Biologie Humaine, Bobigny, France
| | - Emmanuel Martinod
- Laboratoire Hypoxie & Poumon, Assistance Publique-Hôpitaux de Paris, Hôpitaux Universitaires Paris Seine-Saint-Denis, Hôpital Avicenne, Chirurgie Thoracique et Vasculaire, Université Paris 13, Sorbonne Paris Cité, UFR Santé, Médecine et Biologie Humaine, Bobigny, France
| | - Carole Planes
- Laboratoire Hypoxie & Poumon, Assistance Publique-Hôpitaux de Paris, Hôpitaux Universitaires Paris Seine-Saint-Denis, Hôpital Avicenne, Chirurgie Thoracique et Vasculaire, Université Paris 13, Sorbonne Paris Cité, UFR Santé, Médecine et Biologie Humaine, Bobigny, France
| | - Léa Trichet
- Laboratoire de Chimie de la Matière Condensée de Paris, Sorbonne Université, 4 place Jussieu, 75005 Paris, France.
| | - Francisco M Fernandes
- Laboratoire de Chimie de la Matière Condensée de Paris, Sorbonne Université, 4 place Jussieu, 75005 Paris, France.
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5
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Rodríguez-Soto MA, Riveros-Cortés A, Orjuela-Garzón IC, Fernández-Calderón IM, Rodríguez CF, Vargas NS, Ostos C, Camargo CM, Cruz JC, Kim S, D’Amore A, Wagner WR, Briceño JC. Redefining vascular repair: revealing cellular responses on PEUU-gelatin electrospun vascular grafts for endothelialization and immune responses on in vitro models. Front Bioeng Biotechnol 2024; 12:1410863. [PMID: 38903186 PMCID: PMC11188488 DOI: 10.3389/fbioe.2024.1410863] [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: 04/01/2024] [Accepted: 05/13/2024] [Indexed: 06/22/2024] Open
Abstract
Tissue-engineered vascular grafts (TEVGs) poised for regenerative applications are central to effective vascular repair, with their efficacy being significantly influenced by scaffold architecture and the strategic distribution of bioactive molecules either embedded within the scaffold or elicited from responsive tissues. Despite substantial advancements over recent decades, a thorough understanding of the critical cellular dynamics for clinical success remains to be fully elucidated. Graft failure, often ascribed to thrombogenesis, intimal hyperplasia, or calcification, is predominantly linked to improperly modulated inflammatory reactions. The orchestrated behavior of repopulating cells is crucial for both initial endothelialization and the subsequent differentiation of vascular wall stem cells into functional phenotypes. This necessitates the TEVG to provide an optimal milieu wherein immune cells can promote early angiogenesis and cell recruitment, all while averting persistent inflammation. In this study, we present an innovative TEVG designed to enhance cellular responses by integrating a physicochemical gradient through a multilayered structure utilizing synthetic (poly (ester urethane urea), PEUU) and natural polymers (Gelatin B), thereby modulating inflammatory reactions. The luminal surface is functionalized with a four-arm polyethylene glycol (P4A) to mitigate thrombogenesis, while the incorporation of adhesive peptides (RGD/SV) fosters the adhesion and maturation of functional endothelial cells. The resultant multilayered TEVG, with a diameter of 3.0 cm and a length of 11 cm, exhibits differential porosity along its layers and mechanical properties commensurate with those of native porcine carotid arteries. Analyses indicate high biocompatibility and low thrombogenicity while enabling luminal endothelialization and functional phenotypic behavior, thus limiting inflammation in in-vitro models. The vascular wall demonstrated low immunogenicity with an initial acute inflammatory phase, transitioning towards a pro-regenerative M2 macrophage-predominant phase. These findings underscore the potential of the designed TEVG in inducing favorable immunomodulatory and pro-regenerative environments, thus holding promise for future clinical applications in vascular tissue engineering.
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Affiliation(s)
| | | | | | | | | | | | - Carlos Ostos
- Instituto de Química, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia, Medellín, Colombia
| | | | - Juan C. Cruz
- Department of Biomedical Engineering, Universidad de los Andes, Bogotá, Colombia
| | - Seungil Kim
- McGowan Institute for Regenerative Medicine and Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, United States
| | - Antonio D’Amore
- McGowan Institute for Regenerative Medicine and Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, United States
| | - William R. Wagner
- McGowan Institute for Regenerative Medicine and Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, United States
| | - Juan C. Briceño
- Department of Biomedical Engineering, Universidad de los Andes, Bogotá, Colombia
- Department of Congenital Heart Disease and Cardiovascular Surgery, Fundación CardioInfantil Instituto de Cardiología, Bogotá, Colombia
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6
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Adhami M, Picco CJ, Detamornrat U, Anjani QK, Cornelius VA, Robles-Martinez P, Margariti A, Donnelly RF, Domínguez-Robles J, Larrañeta E. Clopidogrel-loaded vascular grafts prepared using digital light processing 3D printing. Drug Deliv Transl Res 2024; 14:1693-1707. [PMID: 38051475 PMCID: PMC11052781 DOI: 10.1007/s13346-023-01484-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/16/2023] [Indexed: 12/07/2023]
Abstract
The leading cause of death worldwide and a significant factor in decreased quality of life are the cardiovascular diseases. Endovascular operations like angioplasty, stent placement, or atherectomy are often used in vascular surgery to either dilate a narrowed blood artery or remove a blockage. As an alternative, a vascular transplant may be utilised to replace or bypass a dysfunctional or blocked blood vessel. Despite the advancements in endovascular surgery and its popularisation over the past few decades, vascular bypass grafting remains prevalent and is considered the best option for patients in need of long-term revascularisation treatments. Consequently, the demand for synthetic vascular grafts composed of biocompatible materials persists. To address this need, biodegradable clopidogrel (CLOP)-loaded vascular grafts have been fabricated using the digital light processing (DLP) 3D printing technique. A mixture of polylactic acid-polyurethane acrylate (PLA-PUA), low molecular weight polycaprolactone (L-PCL), and CLOP was used to achieve the required mechanical and biological properties for vascular grafts. The 3D printing technology provides precise detail in terms of shape and size, which lead to the fabrication of customised vascular grafts. The fabricated vascular grafts were fully characterised using different techniques, and finally, the drug release was evaluated. Results suggested that the performed 3D-printed small-diameter vascular grafts containing the highest CLOP cargo (20% w/w) were able to provide a sustained drug release for up to 27 days. Furthermore, all the CLOP-loaded 3D-printed materials resulted in a substantial reduction of the platelet deposition across their surface compared to the blank materials containing no drug. Haemolysis percentage for all the 3D-printed samples was lower than 5%. Moreover, 3D-printed materials were able to provide a supportive environment for cellular attachment, viability, and growth. A substantial increase in cell growth was detected between the blank and drug-loaded grafts.
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Affiliation(s)
- Masoud Adhami
- School of Pharmacy, Queen's University Belfast, Belfast, BT9 7BL, Northern Ireland, UK
| | - Camila J Picco
- School of Pharmacy, Queen's University Belfast, Belfast, BT9 7BL, Northern Ireland, UK
| | - Usanee Detamornrat
- School of Pharmacy, Queen's University Belfast, Belfast, BT9 7BL, Northern Ireland, UK
| | - Qonita K Anjani
- School of Pharmacy, Queen's University Belfast, Belfast, BT9 7BL, Northern Ireland, UK
| | - Victoria A Cornelius
- Wellcome-Wolfson Institute for Experimental Medicine, Queen's University Belfast, Belfast, BT9 7BL, UK
| | | | - Andriana Margariti
- Wellcome-Wolfson Institute for Experimental Medicine, Queen's University Belfast, Belfast, BT9 7BL, UK
| | - Ryan F Donnelly
- School of Pharmacy, Queen's University Belfast, Belfast, BT9 7BL, Northern Ireland, UK
| | - Juan Domínguez-Robles
- School of Pharmacy, Queen's University Belfast, Belfast, BT9 7BL, Northern Ireland, UK.
- Department of Pharmacy and Pharmaceutical Technology, University of Seville, Seville, Spain.
| | - Eneko Larrañeta
- School of Pharmacy, Queen's University Belfast, Belfast, BT9 7BL, Northern Ireland, UK.
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7
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Ding H, Hou X, Gao Z, Guo Y, Liao B, Wan J. Challenges and Strategies for Endothelializing Decellularized Small-Diameter Tissue-Engineered Vessel Grafts. Adv Healthc Mater 2024; 13:e2304432. [PMID: 38462702 DOI: 10.1002/adhm.202304432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 02/26/2024] [Indexed: 03/12/2024]
Abstract
Vascular diseases are the leading cause of ischemic necrosis in tissues and organs, necessitating using vascular grafts to restore blood supply. Currently, small vessels for coronary artery bypass grafts are unavailable in clinical settings. Decellularized small-diameter tissue-engineered vessel grafts (SD-TEVGs) hold significant potential. However, they face challenges, as simple implantation of decellularized SD-TEVGs in animals leads to thrombosis and calcification due to incomplete endothelialization. Consequently, research and development focus has shifted toward enhancing the endothelialization process of decellularized SD-TEVGs. This paper reviews preclinical studies involving decellularized SD-TEVGs, highlighting different strategies and their advantages and disadvantages for achieving rapid endothelialization of these vascular grafts. Methods are analyzed to improve the process while addressing potential shortcomings. This paper aims to contribute to the future commercial viability of decellularized SD-TEVGs.
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Affiliation(s)
- Heng Ding
- Department of Cardiovascular Surgery, The Affiliated Hospital, Southwest Medical University, Metabolic Vascular Diseases Key Laboratory of Sichuan Province, Key Laboratory of cardiovascular remodeling and dysfunction, Luzhou, Sichuan, 646000, China
- Nanjing Medical University, Nanjing, 211166, P. R. China
| | - Xiaojie Hou
- Department of Cardiovascular Surgery and Cardiovascular Surgery Research Laboratory, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Zhen Gao
- Department of Cardiac Surgery, Beijing Anzhen Hospital, Capital Medical University, Beijing, 100069, China
| | - Yingqiang Guo
- Department of Cardiovascular Surgery and Cardiovascular Surgery Research Laboratory, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Bin Liao
- Department of Cardiovascular Surgery, The Affiliated Hospital, Southwest Medical University, Metabolic Vascular Diseases Key Laboratory of Sichuan Province, Key Laboratory of cardiovascular remodeling and dysfunction, Luzhou, Sichuan, 646000, China
- Key Laboratory of Medical Electrophysiology, Ministry of Education & Medical Electrophysiological Key Laboratory of Sichuan Province, (Collaborative Innovation Center for Prevention of Cardiovascular Diseases), Institute of Cardiovascular Research, Southwest Medical University, Luzhou, Sichuan, 646000, China
| | - Juyi Wan
- Department of Cardiovascular Surgery, The Affiliated Hospital, Southwest Medical University, Metabolic Vascular Diseases Key Laboratory of Sichuan Province, Key Laboratory of cardiovascular remodeling and dysfunction, Luzhou, Sichuan, 646000, China
- Key Laboratory of Medical Electrophysiology, Ministry of Education & Medical Electrophysiological Key Laboratory of Sichuan Province, (Collaborative Innovation Center for Prevention of Cardiovascular Diseases), Institute of Cardiovascular Research, Southwest Medical University, Luzhou, Sichuan, 646000, China
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8
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Bačáková L, Chlupáč J, Filová E, Musílková J, Tomšů J, Wu YC, Svobodová L, Pražák Š, Brož A. Vascular Damage and Repair - Are Small-Diameter Vascular Grafts Still the "Holy Grail" of Tissue Engineering? Physiol Res 2024; 73:S335-S363. [PMID: 38836460 PMCID: PMC11412351 DOI: 10.33549/physiolres.935294] [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: 09/04/2024] Open
Abstract
Cardiovascular diseases are the most important cause of morbidity and mortality in the civilized world. Stenosis or occlusion of blood vessels leads not only to events that are directly life-threatening, such as myocardial infarction or stroke, but also to a significant reduction in quality of life, for example in lower limb ischemia as a consequence of metabolic diseases. The first synthetic polymeric vascular replacements were used clinically in the early 1950s. However, they proved to be suitable only for larger-diameter vessels, where the blood flow prevents the attachment of platelets, pro-inflammatory cells and smooth muscle cells on their inner surface, whereas in smaller-diameter grafts (6 mm or less), these phenomena lead to stenosis and failure of the graft. Moreover, these polymeric vascular replacements, like biological grafts (decellularized or devitalized), are cell-free, i.e. there are no reconstructed physiological layers of the blood vessel wall, i.e. an inner layer of endothelial cells to prevent thrombosis, a middle layer of smooth muscle cells to perform the contractile function, and an outer layer to provide innervation and vascularization of the vessel wall. Vascular substitutes with these cellular components can be constructed by tissue engineering methods. However, it has to be admitted that even about 70 years after the first polymeric vascular prostheses were implanted into human patients, there are still no functional small-diameter vascular grafts on the market. The damage to small-diameter blood vessels has to be addressed by endovascular approaches or by autologous vascular substitutes, which leads to some skepticism about the potential of tissue engineering. However, new possibilities of this approach lie in the use of modern technologies such as 3D bioprinting and/or electrospinning in combination with stem cells and pre-vascularization of tissue-engineered vascular grafts. In this endeavor, sex-related differences in the removal of degradable biomaterials by the cells and in the behavior of stem cells and pre-differentiated vascular cells need to be taken into account. Key words: Blood vessel prosthesis, Regenerative medicine, Stem cells, Footprint-free iPSCs, sr-RNA, Dynamic bioreactor, Sex-related differences.
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Affiliation(s)
- L Bačáková
- Laboratory of Biomaterials and Tissue Engineering, Institute of Physiology of the Czech Academy of Sciences, Prague, Czech Republic.
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9
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Shen Y, Pan Y, Liang F, Song J, Yu X, Cui J, Cai G, EL-Newehy M, Abdulhameed MM, Gu H, Sun B, Yin M, Mo X. Development of 3D printed electrospun vascular graft loaded with tetramethylpyrazine for reducing thrombosis and restraining aneurysmal dilatation. BURNS & TRAUMA 2024; 12:tkae008. [PMID: 38596623 PMCID: PMC11002459 DOI: 10.1093/burnst/tkae008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 01/01/2024] [Accepted: 02/22/2024] [Indexed: 04/11/2024]
Abstract
Background Small-diameter vascular grafts have become the focus of attention in tissue engineering. Thrombosis and aneurysmal dilatation are the two major complications of the loss of vascular access after surgery. Therefore, we focused on fabricating 3D printed electrospun vascular grafts loaded with tetramethylpyrazine (TMP) to overcome these limitations. Methods Based on electrospinning and 3D printing, 3D-printed electrospun vascular grafts loaded with TMP were fabricated. The inner layer of the graft was composed of electrospun poly(L-lactic-co-caprolactone) (PLCL) nanofibers and the outer layer consisted of 3D printed polycaprolactone (PCL) microfibers. The characterization and mechanical properties were tested. The blood compatibility and in vitro cytocompatibility of the grafts were also evaluated. Additionally, rat abdominal aortas were replaced with these 3D-printed electrospun grafts to evaluate their biosafety. Results Mechanical tests demonstrated that the addition of PCL microfibers could improve the mechanical properties. In vitro experimental data proved that the introduction of TMP effectively inhibited platelet adhesion. Afterwards, rat abdominal aorta was replaced with 3D-printed electrospun grafts. The 3D-printed electrospun graft loaded with TMP showed good biocompatibility and mechanical strength within 6 months and maintained substantial patency without the occurrence of acute thrombosis. Moreover, no obvious aneurysmal dilatation was observed. Conclusions The study demonstrated that 3D-printed electrospun vascular grafts loaded with TMP may have the potential for injured vascular healing.
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Affiliation(s)
- Yihong Shen
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Biological Science and Medical Engineering, No. 2999 North Renmin Road, Songjiang District, Donghua University, Shanghai 201620, PR China
| | - Yanjun Pan
- Department of Cardiothoracic Surgery, Shanghai Children’s Medical Center, School of Medicine, Shanghai Jiao Tong University, No. 1678 Dongfang Road,Pudong New Area, Shanghai 200127, PR China
| | - Fubang Liang
- Department of Cardiothoracic Surgery, Shanghai Children’s Medical Center, School of Medicine, Shanghai Jiao Tong University, No. 1678 Dongfang Road,Pudong New Area, Shanghai 200127, PR China
| | - Jiahui Song
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Biological Science and Medical Engineering, No. 2999 North Renmin Road, Songjiang District, Donghua University, Shanghai 201620, PR China
| | - Xiao Yu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Biological Science and Medical Engineering, No. 2999 North Renmin Road, Songjiang District, Donghua University, Shanghai 201620, PR China
| | - Jie Cui
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Biological Science and Medical Engineering, No. 2999 North Renmin Road, Songjiang District, Donghua University, Shanghai 201620, PR China
| | - Guangfang Cai
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Biological Science and Medical Engineering, No. 2999 North Renmin Road, Songjiang District, Donghua University, Shanghai 201620, PR China
| | - Mohamed EL-Newehy
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Meera Moydeen Abdulhameed
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Hongbing Gu
- Department of Cardiovascular Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, No. 650 Xinsongjiang Road, Songjiang District, Shanghai 201600, PR China
| | - Binbin Sun
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Biological Science and Medical Engineering, No. 2999 North Renmin Road, Songjiang District, Donghua University, Shanghai 201620, PR China
| | - Meng Yin
- Department of Cardiothoracic Surgery, Shanghai Children’s Medical Center, School of Medicine, Shanghai Jiao Tong University, No. 1678 Dongfang Road,Pudong New Area, Shanghai 200127, PR China
| | - Xiumei Mo
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Biological Science and Medical Engineering, No. 2999 North Renmin Road, Songjiang District, Donghua University, Shanghai 201620, PR China
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10
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Atturu P, Mudigonda S, Wang CZ, Wu SC, Chen JW, Forgia MFF, Dahms HU, Wang CK. Adipose-derived stem cells loaded photocurable and bioprintable bioinks composed of GelMA, HAMA and PEGDA crosslinker to differentiate into smooth muscle phenotype. Int J Biol Macromol 2024; 265:130710. [PMID: 38492701 DOI: 10.1016/j.ijbiomac.2024.130710] [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: 12/14/2023] [Revised: 02/19/2024] [Accepted: 03/05/2024] [Indexed: 03/18/2024]
Abstract
Developing a polymer-based photocrosslinked 3D printable scaffolds comprised of gelatin methacryloyl (G) and hyaluronic acid methacryloyl (H) incorporated with two molecular weights of polyethylene glycol diacrylate (P) of various concentrations that enables rabbit adipose-derived stem cells (rADSCs) to survive, grow, and differentiate into smooth muscle cells (SMCs). Then, the chemical modification and physicochemical properties of the PGH bioinks were evaluated. The cell viability was assessed via MTT, CCK-8 assay and visualized employing Live/Dead assay. In addition, the morphology and nucleus count of differentiated SMCs were investigated by adopting TRAP (tartrate-resistant acid phosphatase) staining, and quantitative RT-PCR analysis was applied to detect gene expression using two different SMC-specific gene markers α-SMA and SM-MHC. The SMC-specific protein markers namely α-SMA and SM-MHC were applied to investigate SMC differentiation ability by implementing Immunocytofluorescence staining (ICC) and western blotting. Moreover, the disk, square, and tubular cellular models of PGH7 (GelMA/HAMA=2/1) + PEGDA-8000 Da, 3% w/v) hybrid bioink were printed using an extrusion bioprinting and cell viability of rADSCs was also analysed within 3D printed square construct practising Live/Dead assay. The results elicited the overall viability of SMCs, conserving its phenotype in biocompatible PGH7 hybrid bioink revealing its great potential to regenerate SMCs associated organs repair.
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Affiliation(s)
- Pavanchandh Atturu
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung City 80708, Taiwan; Regenerative Medicine and Cell Therapy Research Center, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; Orthopaedic Research Center, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
| | - Sunaina Mudigonda
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung City 80708, Taiwan; Department of Biomedical Science and Environmental Biology, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
| | - Chau-Zen Wang
- Regenerative Medicine and Cell Therapy Research Center, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; Orthopaedic Research Center, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; Department of Physiology, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung 80708, Taiwan
| | - Shun-Cheng Wu
- Regenerative Medicine and Cell Therapy Research Center, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; Orthopaedic Research Center, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; Department of Physiology, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung 80708, Taiwan; Post-Baccalaureate Program in Nursing, Asia University, Taichung 41354, Taiwan
| | - Jhen-Wei Chen
- Regenerative Medicine and Cell Therapy Research Center, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; Orthopaedic Research Center, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
| | - Mary Fornica Francis Forgia
- Regenerative Medicine and Cell Therapy Research Center, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; Orthopaedic Research Center, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; Department of Physiology, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
| | - Hans-Uwe Dahms
- Department of Biomedical Science and Environmental Biology, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
| | - Chih-Kuang Wang
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung City 80708, Taiwan; Regenerative Medicine and Cell Therapy Research Center, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; Orthopaedic Research Center, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan.
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11
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Goldberg LA, Zomer HD, McFetridge C, McFetridge PS. Silica nanoparticles enhance the cyto- and hemocompatibility of a multilayered extracellular matrix scaffold for vascular tissue regeneration. Biotechnol Lett 2024; 46:249-261. [PMID: 38279044 DOI: 10.1007/s10529-023-03459-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 11/04/2023] [Accepted: 12/14/2023] [Indexed: 01/28/2024]
Abstract
PURPOSE The limited availability of autologous vessels for vascular bypass surgeries is a major roadblock to treating severe cardiovascular diseases. Based on this clinical priority, our group has developed a novel engineered vascular graft by rolling human amniotic membranes into multilayered extracellular matrixes (ECM). When treated with silica nanoparticles (SiNP), these rolled scaffolds showed a significant improvement in their structural and mechanical properties, matching those from gold standard autologous grafts. However, it remained to be determined how cells respond to SiNP-treated materials. As a first step toward understanding the biocompatibility of SiNP-dosed biomaterials, we aimed to assess how endothelial cells and blood components interact with SiNP-treated ECM scaffolds. METHODS To test this, we used established in vitro assays to study SiNP and SiNP-treated scaffolds' cyto and hemocompatibility. RESULTS Our results showed that SiNP effects on cells were concentration-dependent with no adverse effects observed up to 10 μg/ml of SiNP, with higher concentrations inducing cytotoxic and hemolytic responses. The SiNP also enhanced the scaffold's hydrophobicity state, a feature known to inhibit platelet and immune cell adhesion. Accordingly, SiNP-treated scaffolds were also shown to support endothelial cell growth while preventing platelet and leukocyte adhesion. CONCLUSION Our findings suggest that the addition of SiNP to human amniotic membrane extracellular matrixes improves the cyto- and hemocompatibility of rolled scaffolds and highlights this strategy as a robust mechanism to stabilize layered collagen scaffolds for vascular tissue regeneration.
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Affiliation(s)
- Leslie A Goldberg
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Biomedical Sciences Building JG-56, 1275 Center Drive, Gainesville, FL, 32611-6131, USA
| | - Helena D Zomer
- Department of Physiological Sciences, University of Florida, Gainesville, FL, USA
| | - Calum McFetridge
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Biomedical Sciences Building JG-56, 1275 Center Drive, Gainesville, FL, 32611-6131, USA
| | - Peter S McFetridge
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Biomedical Sciences Building JG-56, 1275 Center Drive, Gainesville, FL, 32611-6131, USA.
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12
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Wang Z, Zhang M, Liu L, Mithieux SM, Weiss AS. Polyglycerol sebacate-based elastomeric materials for arterial regeneration. J Biomed Mater Res A 2024; 112:574-585. [PMID: 37345954 DOI: 10.1002/jbm.a.37583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2023] [Revised: 05/15/2023] [Accepted: 06/07/2023] [Indexed: 06/23/2023]
Abstract
Synthetic vascular grafts are commonly used in patients with severe occlusive arterial disease when autologous grafts are not an option. Commercially available synthetic grafts are confronted with challenging outcomes: they have a lower patency rate than autologous grafts and are currently unable to promote arterial regeneration. Polyglycerol sebacate (PGS), a non-toxic polymer with a tunable degradation profile, has shown promising results as a small-diameter vascular graft component that can support the formation of neoarteries. In this review, we first present an overview of the synthesis and modification of PGS followed by an examination of its mechanical properties. We then report on the performance, degradation, regeneration, and remodeling of PGS-based small-diameter vascular grafts, with a focus on efforts to reduce thrombosis, prevent dilation, and promote cellular residency and extracellular matrix regeneration that resembles the native artery in spatial distribution and organization. We also highlight recent advances in the incorporation of novel in situ cell sources for arterial regeneration and their potential application in PGS-based vascular grafts. Finally, we compare vascular grafts fabricated using PGS-based materials with other elastomeric alternatives.
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Affiliation(s)
- Ziyu Wang
- School of Life and Environmental Sciences, University of Sydney, Camperdown, New South Wales, Australia
- Charles Perkins Centre, University of Sydney, Camperdown, New South Wales, Australia
| | - Miao Zhang
- School of Life and Environmental Sciences, University of Sydney, Camperdown, New South Wales, Australia
- Charles Perkins Centre, University of Sydney, Camperdown, New South Wales, Australia
| | - Linyang Liu
- School of Life and Environmental Sciences, University of Sydney, Camperdown, New South Wales, Australia
- Charles Perkins Centre, University of Sydney, Camperdown, New South Wales, Australia
| | - Suzanne M Mithieux
- School of Life and Environmental Sciences, University of Sydney, Camperdown, New South Wales, Australia
- Charles Perkins Centre, University of Sydney, Camperdown, New South Wales, Australia
| | - Anthony S Weiss
- School of Life and Environmental Sciences, University of Sydney, Camperdown, New South Wales, Australia
- Charles Perkins Centre, University of Sydney, Camperdown, New South Wales, Australia
- The University of Sydney Nano Institute, University of Sydney, Camperdown, New South Wales, Australia
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13
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Li B, Shu Y, Ma H, Cao K, Cheng YY, Jia Z, Ma X, Wang H, Song K. Three-dimensional printing and decellularized-extracellular-matrix based methods for advances in artificial blood vessel fabrication: A review. Tissue Cell 2024; 87:102304. [PMID: 38219450 DOI: 10.1016/j.tice.2024.102304] [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: 08/25/2023] [Revised: 01/01/2024] [Accepted: 01/02/2024] [Indexed: 01/16/2024]
Abstract
Blood vessels are the tubes through which blood flows and are divided into three types: millimeter-scale arteries, veins, and capillaries as well as micrometer-scale capillaries. Arteries and veins are the conduits that carry blood, while capillaries are where blood exchanges substances with tissues. Blood vessels are mainly composed of collagen fibers, elastic fibers, glycosaminoglycans and other macromolecular substances. There are about 19 feet of blood vessels per square inch of skin in the human body, which shows how important blood vessels are to the human body. Because cardiovascular disease and vascular trauma are common in the population, a great number of researches have been carried out in recent years by simulating the structures and functions of the person's own blood vessels to create different levels of tissue-engineered blood vessels that can replace damaged blood vessels in the human body. However, due to the lack of effective oxygen and nutrient delivery mechanisms, these tissue-engineered vessels have not been used clinically. Therefore, in order to achieve better vascularization of engineered vascular tissue, researchers have widely explored the design methods of vascular systems of various sizes. In the near future, these carefully designed and constructed tissue engineered blood vessels are expected to have practical clinical applications. Exploring how to form multi-scale vascular networks and improve their compatibility with the host vascular system will be very beneficial in achieving this goal. Among them, 3D printing has the advantages of high precision and design flexibility, and the decellularized matrix retains active ingredients such as collagen, elastin, and glycosaminoglycan, while removing the immunogenic substance DNA. In this review, technologies and advances in 3D printing and decellularization-based artificial blood vessel manufacturing methods are systematically discussed. Recent examples of vascular systems designed are introduced in details, the main problems and challenges in the clinical application of vascular tissue restriction are discussed and pointed out, and the future development trends in the field of tissue engineered blood vessels are also prospected.
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Affiliation(s)
- Bing Li
- State Key Laboratory of Fine Chemicals, Dalian R&D Center for Stem Cell and Tissue Engineering, Dalian University of Technology, Dalian 116024, China
| | - Yan Shu
- State Key Laboratory of Fine Chemicals, Dalian R&D Center for Stem Cell and Tissue Engineering, Dalian University of Technology, Dalian 116024, China
| | - Hailin Ma
- State Key Laboratory of Fine Chemicals, Dalian R&D Center for Stem Cell and Tissue Engineering, Dalian University of Technology, Dalian 116024, China
| | - Kun Cao
- State Key Laboratory of Fine Chemicals, Dalian R&D Center for Stem Cell and Tissue Engineering, Dalian University of Technology, Dalian 116024, China
| | - Yuen Yee Cheng
- Institute for Biomedical Materials and Devices, Faculty of Science, University of Technology Sydney, NSW 2007, Australia
| | - Zhilin Jia
- Department of Hematology, The First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116011, China.
| | - Xiao Ma
- Department of Anesthesia, First Affiliated Hospital of Dalian Medical University, Dalian 116011, China.
| | - Hongfei Wang
- Department of Orthopedics, Second Affiliated Hospital of Dalian Medical University, Dalian 116023, China.
| | - Kedong Song
- State Key Laboratory of Fine Chemicals, Dalian R&D Center for Stem Cell and Tissue Engineering, Dalian University of Technology, Dalian 116024, China.
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14
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Bao H, Zhang Y, Xin H, Gao Y, Hou Y, Yue G, Wang N, Wang Y, Li C, Liu F, Zhao Y, Kong L. The Construction of Three-Layered Biomimetic Arterial Graft Balances Biomechanics and Biocompatibility for Dynamic Biological Reconstruction. ACS OMEGA 2024; 9:7609-7620. [PMID: 38405546 PMCID: PMC10882685 DOI: 10.1021/acsomega.3c06628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/03/2023] [Revised: 12/24/2023] [Accepted: 01/15/2024] [Indexed: 02/27/2024]
Abstract
The process of reconstructing an arterial graft is a complex and dynamic process that is subject to the influence of various mechanical factors, including tissue regeneration and blood pressure. The attainment of favorable remodeling outcomes is contingent upon the biocompatibility and biomechanical properties of the arterial graft. A promising strategy involves the emulation of the three-layer structure of the native artery, wherein the inner layer is composed of polycaprolactone (PCL) fibers aligned with blood flow, exhibiting excellent biocompatibility that fosters endothelial cell growth and effectively prevents platelet adhesion. The middle layer, consisting of PCL and polyurethane (PU), offers mechanical support and stability by forming a contractile smooth muscle ring and antiexpansion PU network. The outer layer, composed of PCL fibers with an irregular arrangement, promotes the growth of nerves and pericytes for long-term vascular function. Prioritizing the reconstruction of the inner and outer layers establishes a stable environment for intermediate smooth muscle growth. Our three-layer arterial graft is designed to provide the blood vessel with mechanical support and stability through nondegradable PU, while the incorporation of degradable PCL generates potential spaces for tissue ingrowth, thereby transforming our graft into a living implant.
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Affiliation(s)
- Han Bao
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial Surgery, School of Stomatology, The Fourth Military Medical University, Xi'an 710032, China
| | - Yanyuan Zhang
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial Surgery, School of Stomatology, The Fourth Military Medical University, Xi'an 710032, China
| | - He Xin
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial Surgery, School of Stomatology, The Fourth Military Medical University, Xi'an 710032, China
| | - Ye Gao
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial Surgery, School of Stomatology, The Fourth Military Medical University, Xi'an 710032, China
| | - Yan Hou
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial Surgery, School of Stomatology, The Fourth Military Medical University, Xi'an 710032, China
| | - Guichu Yue
- Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University, Beijing 100191, China
| | - Nü Wang
- Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University, Beijing 100191, China
| | - Yaqiong Wang
- Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University, Beijing 100191, China
| | - Chun Li
- Shandong Nafeibo Technology Development Co., Ltd, Yantai 264000, China
| | - Fuwei Liu
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial Surgery, School of Stomatology, The Fourth Military Medical University, Xi'an 710032, China
| | - Yong Zhao
- Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University, Beijing 100191, China
| | - Liang Kong
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial Surgery, School of Stomatology, The Fourth Military Medical University, Xi'an 710032, China
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15
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Cao L, Zhang Z, Yuan D, Yu M, Min J. Tissue engineering applications of recombinant human collagen: a review of recent progress. Front Bioeng Biotechnol 2024; 12:1358246. [PMID: 38419725 PMCID: PMC10900516 DOI: 10.3389/fbioe.2024.1358246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Accepted: 01/31/2024] [Indexed: 03/02/2024] Open
Abstract
With the rapid development of synthetic biology, recombinant human collagen has emerged as a cutting-edge biological material globally. Its innovative applications in the fields of material science and medicine have opened new horizons in biomedical research. Recombinant human collagen stands out as a highly promising biomaterial, playing a pivotal role in crucial areas such as wound healing, stroma regeneration, and orthopedics. However, realizing its full potential by efficiently delivering it for optimal therapeutic outcomes remains a formidable challenge. This review provides a comprehensive overview of the applications of recombinant human collagen in biomedical systems, focusing on resolving this crucial issue. Additionally, it encompasses the exploration of 3D printing technologies incorporating recombinant collagen to address some urgent clinical challenges in regenerative repair in the future. The primary aim of this review also is to spotlight the advancements in the realm of biomaterials utilizing recombinant collagen, with the intention of fostering additional innovation and making significant contributions to the enhancement of regenerative biomaterials, therapeutic methodologies, and overall patient outcomes.
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Affiliation(s)
- Lili Cao
- Department of Plastic Surgery, Zhejiang Rongjun Hospital, Jiaxing, Zhejiang, China
| | - Zhongfeng Zhang
- Department of Plastic Surgery, Zhejiang Rongjun Hospital, Jiaxing, Zhejiang, China
| | - Dan Yuan
- Department of Plastic Surgery, Zhejiang Rongjun Hospital, Jiaxing, Zhejiang, China
| | - Meiping Yu
- Department of Plastic Surgery, Zhejiang Rongjun Hospital, Jiaxing, Zhejiang, China
| | - Jie Min
- General Surgery Department, Jiaxing No.1 Hospital, Jiaxing, Zhejiang, China
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16
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Ozdemir S, Oztemur J, Sezgin H, Yalcin-Enis I. Optimization of Electrospun Bilayer Vascular Grafts through Assessment of the Mechanical Properties of Monolayers. ACS Biomater Sci Eng 2024; 10:960-974. [PMID: 38196384 DOI: 10.1021/acsbiomaterials.3c01161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2024]
Abstract
Small-diameter vascular grafts must be obtained with the most appropriate materials and design selection to harmoniously display a variety of features, including adequate tensile strength, compliance, burst strength, biocompatibility, and biodegradability against challenging physiological and hemodynamic conditions. In this study, monolayer vascular grafts with randomly distributed or radially oriented fibers are produced using neat, blended, and copolymer forms of polycaprolactone (PCL) and poly(lactic acid) (PLA) via the electrospinning technique. The blending ratio is varied by increasing 10 in the range of 50-100%. Bilayer graft designs are realized by determining the layers with a random fiber distribution for the inner layer and radial fiber orientation for the outer layer. SEM analysis, wall thickness and fiber diameter measurements, tensile strength, elongation, burst strength, and compliance tests are done for both mono- and bilayer scaffolds. The findings revealed that the scaffolds made of neat PCL show more flexibility than the neat PLA samples, which possess higher tensile strength values than neat PCL scaffolds. Also, in blended samples, the tensile strength values do not show a significant improvement, whereas the elongation values are enhanced in tubular samples, depending on the blending ratio. Also, neat poly(l-lactide-co-caprolactone) (PLCL) samples have both higher elongation and strength values than neat and blended scaffolds, with some exceptions. The blended specimens comprising a combination of PCL and PLA, with blending ratios of 80/20 and 70/30, exhibited the most elevated burst pressures. Conversely, the PLCL scaffolds demonstrated superior compliance levels. These findings suggest that the blending approach and fiber orientation offer enhanced burst strength, while copolymer utilization in PLCL scaffolds without fiber alignment enhances their compliance properties. Thus, it is evident that using a copolymer instead of blending PCL and PLA and combining the PLCL layer with PCL and PLA monolayers in bilayer vascular graft design is promising in terms of mechanical and biological properties.
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Affiliation(s)
- Suzan Ozdemir
- Textile Engineering Department, Istanbul Technical University, Istanbul 34437, Turkey
| | - Janset Oztemur
- Textile Engineering Department, Istanbul Technical University, Istanbul 34437, Turkey
| | - Hande Sezgin
- Textile Engineering Department, Istanbul Technical University, Istanbul 34437, Turkey
| | - Ipek Yalcin-Enis
- Textile Engineering Department, Istanbul Technical University, Istanbul 34437, Turkey
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17
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Avolio E, Campagnolo P, Katare R, Madeddu P. The role of cardiac pericytes in health and disease: therapeutic targets for myocardial infarction. Nat Rev Cardiol 2024; 21:106-118. [PMID: 37542118 DOI: 10.1038/s41569-023-00913-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 07/10/2023] [Indexed: 08/06/2023]
Abstract
Millions of cardiomyocytes die immediately after myocardial infarction, regardless of whether the culprit coronary artery undergoes prompt revascularization. Residual ischaemia in the peri-infarct border zone causes further cardiomyocyte damage, resulting in a progressive decline in contractile function. To date, no treatment has succeeded in increasing the vascularization of the infarcted heart. In the past decade, new approaches that can target the heart's highly plastic perivascular niche have been proposed. The perivascular environment is populated by mesenchymal progenitor cells, fibroblasts, myofibroblasts and pericytes, which can together mount a healing response to the ischaemic damage. In the infarcted heart, pericytes have crucial roles in angiogenesis, scar formation and stabilization, and control of the inflammatory response. Persistent ischaemia and accrual of age-related risk factors can lead to pericyte depletion and dysfunction. In this Review, we describe the phenotypic changes that characterize the response of cardiac pericytes to ischaemia and the potential of pericyte-based therapy for restoring the perivascular niche after myocardial infarction. Pericyte-related therapies that can salvage the area at risk of an ischaemic injury include exogenously administered pericytes, pericyte-derived exosomes, pericyte-engineered biomaterials, and pharmacological approaches that can stimulate the differentiation of constitutively resident pericytes towards an arteriogenic phenotype. Promising preclinical results from in vitro and in vivo studies indicate that pericytes have crucial roles in the treatment of coronary artery disease and the prevention of post-ischaemic heart failure.
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Affiliation(s)
- Elisa Avolio
- Bristol Medical School, Translational Health Sciences, University of Bristol, Bristol, UK.
| | - Paola Campagnolo
- School of Biosciences, Faculty of Health & Medical Sciences, University of Surrey, Guildford, UK
| | - Rajesh Katare
- Department of Physiology, HeartOtago, School of Biomedical Sciences, University of Otago, Dunedin, New Zealand
| | - Paolo Madeddu
- Bristol Medical School, Translational Health Sciences, University of Bristol, Bristol, UK.
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18
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Carrabba M, Fagnano M, Ghorbel MT, Rapetto F, Su B, De Maria C, Vozzi G, Biglino G, Perriman AW, Caputo M, Madeddu P. Development of a Novel Hierarchically Biofabricated Blood Vessel Mimic Decorated with Three Vascular Cell Populations for the Reconstruction of Small-Diameter Arteries. ADVANCED FUNCTIONAL MATERIALS 2024; 34:adfm.202300621. [PMID: 39257639 PMCID: PMC7616429 DOI: 10.1002/adfm.202300621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Indexed: 09/12/2024]
Abstract
The availability of grafts to replace small-diameter arteries remains an unmet clinical need. Here, the validated methodology is reported for a novel hybrid tissue-engineered vascular graft that aims to match the natural structure of small-size arteries. The blood vessel mimic (BVM) comprises an internal conduit of co-electrospun gelatin and polycaprolactone (PCL) nanofibers (corresponding to the tunica intima of an artery), reinforced by an additional layer of PCL aligned fibers (the internal elastic membrane). Endothelial cells are deposited onto the luminal surface using a rotative bioreactor. A bioprinting system extrudes two concentric cell-laden hydrogel layers containing respectively vascular smooth muscle cells and pericytes to create the tunica media and adventitia. The semi-automated cellularization process reduces the production and maturation time to 6 days. After the evaluation of mechanical properties, cellular viability, hemocompatibility, and suturability, the BVM is successfully implanted in the left pulmonary artery of swine. Here, the BVM showed good hemostatic properties, capability to withstand blood pressure, and patency at 5 weeks post-implantation. These promising data open a new avenue to developing an artery-like product for reconstructing small-diameter blood vessels.
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Affiliation(s)
- Michele Carrabba
- Bristol Heart Institute, School of Translational Health Sciences, Bristol Medical School, University of Bristol, Bristol BS2 8HW, UK
| | - Marco Fagnano
- Bristol Heart Institute, School of Translational Health Sciences, Bristol Medical School, University of Bristol, Bristol BS2 8HW, UK
| | - Mohamed T Ghorbel
- Bristol Heart Institute, School of Translational Health Sciences, Bristol Medical School, University of Bristol, Bristol BS2 8HW, UK
| | - Filippo Rapetto
- Bristol Heart Institute, School of Translational Health Sciences, Bristol Medical School, University of Bristol, Bristol BS2 8HW, UK
- Cardiac Surgery, University Hospitals Bristol, NHS Foundation Trust, Bristol BS2 8HW, UK
| | - Bo Su
- Bristol Dental School, University of Bristol, Bristol BS2 8HW, UK
| | - Carmelo De Maria
- Research Center "E. Piaggio", University of Pisa, Largo L. Lazzarino 1, 56122 Pisa, Italy
- Department of Information Engineering, University of Pisa, Via G. Caruso 16, 56122 Pisa, Italy
| | - Giovanni Vozzi
- Research Center "E. Piaggio", University of Pisa, Largo L. Lazzarino 1, 56122 Pisa, Italy
- Department of Information Engineering, University of Pisa, Via G. Caruso 16, 56122 Pisa, Italy
| | - Giovanni Biglino
- Bristol Heart Institute, School of Translational Health Sciences, Bristol Medical School, University of Bristol, Bristol BS2 8HW, UK
- Cardiorespiratory Unit, Great Ormond Street Hospital for Children NHS Foundation Trust, London WC1N 3JH, UK
| | - Adam W Perriman
- School of Cellular and Molecular Medicine, University of Bristol, Bristol BS8 1TD, UK
| | - Massimo Caputo
- Bristol Heart Institute, School of Translational Health Sciences, Bristol Medical School, University of Bristol, Bristol BS2 8HW, UK
- Cardiac Surgery, University Hospitals Bristol, NHS Foundation Trust, Bristol BS2 8HW, UK
| | - Paolo Madeddu
- Bristol Heart Institute, School of Translational Health Sciences, Bristol Medical School, University of Bristol, Bristol BS2 8HW, UK
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19
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Shin S, Brunel LG, Cai B, Kilian D, Roth JG, Seymour AJ, Heilshorn SC. Gelation of Uniform Interfacial Diffusant in Embedded 3D Printing. ADVANCED FUNCTIONAL MATERIALS 2023; 33:2307435. [PMID: 38646474 PMCID: PMC11031202 DOI: 10.1002/adfm.202307435] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Indexed: 04/23/2024]
Abstract
While the human body has many different examples of perfusable structures with complex geometries, biofabrication methods to replicate this complexity are still lacking. Specifically, the fabrication of self-supporting, branched networks with multiple channel diameters is particularly challenging. Here, we present the Gelation of Uniform Interfacial Diffusant in Embedded 3D Printing (GUIDE-3DP) approach for constructing perfusable networks of interconnected channels with precise control over branching geometries and vessel sizes. To achieve user-specified channel dimensions, this technique leverages the predictable diffusion of crosslinking reaction-initiators released from sacrificial inks printed within a hydrogel precursor. We demonstrate the versatility of GUIDE-3DP to be adapted for use with diverse physicochemical crosslinking mechanisms by designing seven printable material systems. Importantly, GUIDE-3DP allows for the independent tunability of both the inner and outer diameters of the printed channels and the ability to fabricate seamless junctions at branch points. This 3D bioprinting platform is uniquely suited for fabricating lumenized structures with complex shapes characteristic of multiple hollow vessels throughout the body. As an exemplary application, we demonstrate the fabrication of vasculature-like networks lined with endothelial cells. GUIDE-3DP represents an important advance toward the fabrication of self-supporting, physiologically relevant networks with intricate and perfusable geometries.
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Affiliation(s)
- Sungchul Shin
- Department of Materials Science and Engineering, Stanford University, 466 Lomita Mall, Stanford, CA 94305, USA
- Department of Agriculture, Forestry, and Bioresources, Seoul National University, 08826 Gwanak-ro 1, Gwanak-gu, Seoul, Republic of Korea
| | - Lucia G Brunel
- Department of Chemical Engineering, Stanford University, 466 Lomita Mall, Stanford, CA 94305, USA
| | - Betty Cai
- Department of Materials Science and Engineering, Stanford University, 466 Lomita Mall, Stanford, CA 94305, USA
| | - David Kilian
- Department of Materials Science and Engineering, Stanford University, 466 Lomita Mall, Stanford, CA 94305, USA
| | - Julien G Roth
- Institute for Stem Cell Biology and Regenerative Medicine, Stanford University, 466 Lomita Mall, Stanford, CA 94305, USA
| | - Alexis J Seymour
- Department of Bioengineering, Stanford University, 466 Lomita Mall, Stanford, CA 94305, USA
| | - Sarah C Heilshorn
- Department of Materials Science and Engineering, Stanford University, 466 Lomita Mall, Stanford, CA 94305, USA
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20
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Wang N, Wang H, Weng D, Wang Y, Yu L, Wang F, Zhang T, Liu J, He Z. Nanomaterials for small diameter vascular grafts: overview and outlook. NANOSCALE ADVANCES 2023; 5:6751-6767. [PMID: 38059025 PMCID: PMC10696638 DOI: 10.1039/d3na00666b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Accepted: 11/05/2023] [Indexed: 12/08/2023]
Abstract
Small-diameter vascular grafts (SDVGs) cannot meet current clinical demands owing to their suboptimal long-term patency rate. Various materials have been employed to address this issue, including nanomaterials (NMs), which have demonstrated exceptional capabilities and promising application potentials. In this review, the utilization of NMs in different forms, including nanoparticles, nanofibers, and nanofilms, in the SDVG field is discussed, and future perspectives for the development of NM-loading SDVGs are highlighted. It is expected that this review will provide helpful information to scholars in the innovative interdiscipline of cardiovascular disease treatment and NM.
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Affiliation(s)
- Nuoxin Wang
- Key Laboratory of Cell Engineering of Guizhou Province, Affiliated Hospital of Zunyi Medical University Zunyi 563003 Guizhou China
- The Clinical Stem Cell Research Institute, Affiliated Hospital of Zunyi Medical University Zunyi 563003 Guizhou China
- Collaborative Innovation Center of Chinese Ministry of Education, Zunyi Medical University Zunyi 563003 Guizhou China
- The First Clinical Institute, Zunyi Medical University Zunyi 563003 Guizhou China
| | - Haoyuan Wang
- Key Laboratory of Cell Engineering of Guizhou Province, Affiliated Hospital of Zunyi Medical University Zunyi 563003 Guizhou China
- Department of Cardiothoracic Surgery, The Second Affiliated Hospital of Zunyi Medical University Zunyi 563006 Guizhou China
- The Second Clinical Institute, Zunyi Medical University Zunyi 563003 Guizhou China
| | - Dong Weng
- Key Laboratory of Cell Engineering of Guizhou Province, Affiliated Hospital of Zunyi Medical University Zunyi 563003 Guizhou China
- The First Clinical Institute, Zunyi Medical University Zunyi 563003 Guizhou China
| | - Yanyang Wang
- Key Laboratory of Cell Engineering of Guizhou Province, Affiliated Hospital of Zunyi Medical University Zunyi 563003 Guizhou China
- The First Clinical Institute, Zunyi Medical University Zunyi 563003 Guizhou China
| | - Limei Yu
- Key Laboratory of Cell Engineering of Guizhou Province, Affiliated Hospital of Zunyi Medical University Zunyi 563003 Guizhou China
- The Clinical Stem Cell Research Institute, Affiliated Hospital of Zunyi Medical University Zunyi 563003 Guizhou China
- Collaborative Innovation Center of Chinese Ministry of Education, Zunyi Medical University Zunyi 563003 Guizhou China
| | - Feng Wang
- Department of Cardiothoracic Surgery, The Second Affiliated Hospital of Zunyi Medical University Zunyi 563006 Guizhou China
- The Second Clinical Institute, Zunyi Medical University Zunyi 563003 Guizhou China
- Department of Cardiovascular Surgery, Affiliated Hospital of Guizhou Medical University, Guiyang 550004 Guizhou China
| | - Tao Zhang
- Key Laboratory of Cell Engineering of Guizhou Province, Affiliated Hospital of Zunyi Medical University Zunyi 563003 Guizhou China
- The Clinical Stem Cell Research Institute, Affiliated Hospital of Zunyi Medical University Zunyi 563003 Guizhou China
- Collaborative Innovation Center of Chinese Ministry of Education, Zunyi Medical University Zunyi 563003 Guizhou China
| | - Juan Liu
- Key Laboratory of Cell Engineering of Guizhou Province, Affiliated Hospital of Zunyi Medical University Zunyi 563003 Guizhou China
- The Clinical Stem Cell Research Institute, Affiliated Hospital of Zunyi Medical University Zunyi 563003 Guizhou China
- Collaborative Innovation Center of Chinese Ministry of Education, Zunyi Medical University Zunyi 563003 Guizhou China
| | - Zhixu He
- Key Laboratory of Cell Engineering of Guizhou Province, Affiliated Hospital of Zunyi Medical University Zunyi 563003 Guizhou China
- The Clinical Stem Cell Research Institute, Affiliated Hospital of Zunyi Medical University Zunyi 563003 Guizhou China
- Collaborative Innovation Center of Chinese Ministry of Education, Zunyi Medical University Zunyi 563003 Guizhou China
- The First Clinical Institute, Zunyi Medical University Zunyi 563003 Guizhou China
- Department of Pediatrics, Affiliated Hospital of Zunyi Medical University Zunyi 563003 Guizhou China
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21
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González Z, Ferrandez-Montero A, Domínguez-Robles J. Recent Advances in Polymers as Matrices for Drug Delivery Applications. Pharmaceuticals (Basel) 2023; 16:1674. [PMID: 38139801 PMCID: PMC10747709 DOI: 10.3390/ph16121674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Accepted: 11/27/2023] [Indexed: 12/24/2023] Open
Abstract
Polymeric-based drug delivery systems have become versatile and valuable candidates in sectors such as pharmaceuticals, health, medicine, etc [...].
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Affiliation(s)
- Zoilo González
- BioPrEn Group (RNM940), Chemical Engineering Department, Instituto Químico para la Energía y el Medioambiente (IQUEMA), Faculty of Science, Universidad de Córdoba (UCO), 14014 Córdoba, Spain
| | - Ana Ferrandez-Montero
- Instituto de Cerámica y Vidrio, Consejo Superior de Investigaciones Científicas (CSIC), Campus de Cantoblanco, c/Kelsen 5, 28049 Madrid, Spain
| | - Juan Domínguez-Robles
- Department of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, Universidad de Sevilla, 41012 Seville, Spain
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22
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Mohanadas HP, Nair V, Doctor AA, Faudzi AAM, Tucker N, Ismail AF, Ramakrishna S, Saidin S, Jaganathan SK. A Systematic Analysis of Additive Manufacturing Techniques in the Bioengineering of In Vitro Cardiovascular Models. Ann Biomed Eng 2023; 51:2365-2383. [PMID: 37466879 PMCID: PMC10598155 DOI: 10.1007/s10439-023-03322-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Accepted: 07/13/2023] [Indexed: 07/20/2023]
Abstract
Additive Manufacturing is noted for ease of product customization and short production run cost-effectiveness. As our global population approaches 8 billion, additive manufacturing has a future in maintaining and improving average human life expectancy for the same reasons that it has advantaged general manufacturing. In recent years, additive manufacturing has been applied to tissue engineering, regenerative medicine, and drug delivery. Additive Manufacturing combined with tissue engineering and biocompatibility studies offers future opportunities for various complex cardiovascular implants and surgeries. This paper is a comprehensive overview of current technological advancements in additive manufacturing with potential for cardiovascular application. The current limitations and prospects of the technology for cardiovascular applications are explored and evaluated.
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Affiliation(s)
| | - Vivek Nair
- Computational Fluid Dynamics (CFD) Lab, Mechanical and Aerospace Engineering, University of Texas Arlington, Arlington, TX, 76010, USA
| | | | - Ahmad Athif Mohd Faudzi
- Faculty of Engineering, School of Electrical Engineering, Universiti Teknologi Malaysia, Johor Bahru, Malaysia
- Centre for Artificial Intelligence and Robotics, Universiti Teknologi Malaysia, Kuala Lumpur, Malaysia
| | - Nick Tucker
- School of Engineering, College of Science, Brayford Pool, Lincoln, LN6 7TS, UK
| | - Ahmad Fauzi Ismail
- School of Chemical and Energy Engineering, Advanced Membrane Technology Research Centre (AMTEC), Universiti Teknologi Malaysia, Skudai, Malaysia
| | - Seeram Ramakrishna
- Department of Mechanical Engineering, Center for Nanofibers & Nanotechnology Initiative, National University of Singapore, Singapore, Singapore
| | - Syafiqah Saidin
- IJNUTM Cardiovascular Engineering Centre, Universiti Teknologi Malaysia, Johor Bahru, Malaysia
| | - Saravana Kumar Jaganathan
- Faculty of Engineering, School of Electrical Engineering, Universiti Teknologi Malaysia, Johor Bahru, Malaysia.
- Centre for Artificial Intelligence and Robotics, Universiti Teknologi Malaysia, Kuala Lumpur, Malaysia.
- School of Engineering, College of Science, Brayford Pool, Lincoln, LN6 7TS, UK.
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23
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Debski T, Siennicka K, Idaszek J, Roszkowski B, Swieszkowski W, Pojda Z. Effect of adipose-derived stem cells seeding and surgical prefabrication on composite scaffold vascularization. J Biomater Appl 2023; 38:548-561. [PMID: 37732423 DOI: 10.1177/08853282231202601] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/22/2023]
Abstract
The study aimed to evaluate an angiogenic effect of adipose-derived stem cells (ASCs) seeding and surgical prefabrication (placing a vascular pedicle inside the scaffold) on developed composite scaffolds made of poly-ε-caprolactone (PCL), β-tricalcium phosphate (β-TCP), and poly (lactic-co-glycolic acid) (PLGA) (PCL+β-TCP+PLGA). Moreover, we aimed to compare our data with previously tested PCL scaffolds to assess whether the new material has better angiogenic properties. The study included 18 inbred male WAG rats. There were three scaffold groups (six animals each): with non-seeded PCL+β-TCP+PLGA scaffolds, with PCL+β-TCP+PLGA scaffolds seeded with ASCs and with PCL+β-TCP+PLGA scaffolds seeded with ASCs and osteogenic-induced. Each rat was implanted with two scaffolds in the inguinal region (one prefabricated and one non-prefabricated). After 2 months from implantation, the scaffolds were explanted, and vessel density was determined by histopathological examination. Prefabricated ASC-seeded PCL+β-TCP+PLGA scaffolds promoted greater vessel formation than non-seeded scaffolds (19.73 ± 5.46 vs 12.54 ± 0.81; p = .006) and those seeded with osteogenic-induced ASCs (19.73 ± 5.46 vs 11.87±2.21; p = .004). The developed composite scaffold promotes vessel formation more effectively than the previously described PCL scaffold.
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Affiliation(s)
- Tomasz Debski
- Department of Regenerative Medicine, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland
| | - Katarzyna Siennicka
- Department of Regenerative Medicine, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland
| | - Joanna Idaszek
- Materials Design Division, Faculty of Materials Science and Engineering, Warsaw University of Technology, Warsaw, Poland
| | - Bartlomiej Roszkowski
- Department of Regenerative Medicine, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland
| | - Wojciech Swieszkowski
- Materials Design Division, Faculty of Materials Science and Engineering, Warsaw University of Technology, Warsaw, Poland
| | - Zygmunt Pojda
- Department of Regenerative Medicine, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland
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24
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Duong VT, Nguyen CT, Phan HL, Le VP, Dang TT, Choi C, Seo J, Cha C, Back SH, Koo KI. Double-layered blood vessels over 3 mm in diameter extruded by the inverse-gravity technique. Biofabrication 2023; 15:045022. [PMID: 37659401 DOI: 10.1088/1758-5090/acf61f] [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: 02/26/2023] [Accepted: 09/01/2023] [Indexed: 09/04/2023]
Abstract
One of the most promising techniques for treating severe peripheral artery disease is the use of cellular tissue-engineered vascular grafts (TEVGs). This study proposes an inverse-gravity (IG) extrusion technique for creating long double-layered cellular TEVGs with diameters over 3 mm. A three-layered coaxial laminar hydrogel flow in an 8 mm-diameter pipe was realised simply by changing the extrusion direction of the hydrogel from being aligned with the direction of gravity to against it. This technique produced an extruded mixture of human aortic smooth muscle cells (HASMCs) and type-I collagen as a tubular structure with an inner diameter of 3.5 mm. After a 21 day maturation period, the maximal burst pressure, longitudinal breaking force, and circumferential breaking force of the HASMC TEVG were 416 mmHg, 0.69 N, and 0.89 N, respectively. The HASMC TEVG was endothelialised with human umbilical vein endothelial cells to form a tunica intima that simulated human vessels. Besides subcutaneous implantability on mice, the double-layered blood vessels showed a considerably lower adherence of platelets and red blood cells once exposed to heparinised mouse blood and were considered nonhaemolytic. The proposed IG extrusion technique can be applied in various fields requiring multilayered materials with large diameters.
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Affiliation(s)
- Van Thuy Duong
- Department of Electrical, Electronic and Computer Engineering, University of Ulsan, Ulsan 44610, Republic of Korea
| | - Chanh Trung Nguyen
- Department of Electrical, Electronic and Computer Engineering, University of Ulsan, Ulsan 44610, Republic of Korea
| | - Huu Lam Phan
- Department of Electrical, Electronic and Computer Engineering, University of Ulsan, Ulsan 44610, Republic of Korea
| | - Van Phu Le
- Department of Electrical, Electronic and Computer Engineering, University of Ulsan, Ulsan 44610, Republic of Korea
| | - Thao Thi Dang
- School of Biological Sciences, University of Ulsan, Ulsan 44610, Republic of Korea
| | - Cholong Choi
- Center for Multidimensional Programmable Matter, Department of Materials Science and Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Jongmo Seo
- Electrical and Computer Engineering, Seoul National University, Seoul 08826, Republic of Korea
| | - Chaenyung Cha
- Center for Multidimensional Programmable Matter, Department of Materials Science and Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Sung Hoon Back
- School of Biological Sciences, University of Ulsan, Ulsan 44610, Republic of Korea
| | - Kyo-In Koo
- Department of Electrical, Electronic and Computer Engineering, University of Ulsan, Ulsan 44610, Republic of Korea
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25
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Rohringer S, Grasl C, Ehrmann K, Hager P, Hahn C, Specht SJ, Walter I, Schneider KH, Zopf LM, Baudis S, Liska R, Schima H, Podesser BK, Bergmeister H. Biodegradable, Self-Reinforcing Vascular Grafts for In Situ Tissue Engineering Approaches. Adv Healthc Mater 2023; 12:e2300520. [PMID: 37173073 DOI: 10.1002/adhm.202300520] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 04/21/2023] [Indexed: 05/15/2023]
Abstract
Clinically available small-diameter synthetic vascular grafts (SDVGs) have unsatisfactory patency rates due to impaired graft healing. Therefore, autologous implants are still the gold standard for small vessel replacement. Bioresorbable SDVGs may be an alternative, but many polymers have inadequate biomechanical properties that lead to graft failure. To overcome these limitations, a new biodegradable SDVG is developed to ensure safe use until adequate new tissue is formed. SDVGs are electrospun using a polymer blend composed of thermoplastic polyurethane (TPU) and a new self-reinforcing TP(U-urea) (TPUU). Biocompatibility is tested in vitro by cell seeding and hemocompatibility tests. In vivo performance is evaluated in rats over a period for up to six months. Autologous rat aortic implants serve as a control group. Scanning electron microscopy, micro-computed tomography (µCT), histology, and gene expression analyses are applied. TPU/TPUU grafts show significant improvement of biomechanical properties after water incubation and exhibit excellent cyto- and hemocompatibility. All grafts remain patent, and biomechanical properties are sufficient despite wall thinning. No inflammation, aneurysms, intimal hyperplasia, or thrombus formation are observed. Evaluation of graft healing shows similar gene expression profiles of TPU/TPUU and autologous conduits. These new biodegradable, self-reinforcing SDVGs may be promising candidates for clinical use in the future.
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Affiliation(s)
- Sabrina Rohringer
- Center for Biomedical Research and Translational Surgery, Medical University of Vienna, Waehringer Gürtel 18-20, Vienna, 1090, Austria
- Austrian Cluster for Tissue Regeneration, Donaueschingenstraße 13, Vienna, 1200, Austria
- Ludwig Boltzmann Institute for Cardiovascular Research, Waehringer Gürtel 18-20, Vienna, 1090, Austria
| | - Christian Grasl
- Ludwig Boltzmann Institute for Cardiovascular Research, Waehringer Gürtel 18-20, Vienna, 1090, Austria
- Center for Medical Physics and Biomedical Engineering, Medical University of Vienna, Waehringer Gürtel 18-20, Vienna, 1090, Austria
| | - Katharina Ehrmann
- Center for Biomedical Research and Translational Surgery, Medical University of Vienna, Waehringer Gürtel 18-20, Vienna, 1090, Austria
- Austrian Cluster for Tissue Regeneration, Donaueschingenstraße 13, Vienna, 1200, Austria
- Institute of Applied Synthetic Chemistry, Technical University of Vienna, Getreidemarkt 9/163, Vienna, 1060, Austria
| | - Pia Hager
- Center for Biomedical Research and Translational Surgery, Medical University of Vienna, Waehringer Gürtel 18-20, Vienna, 1090, Austria
- Ludwig Boltzmann Institute for Cardiovascular Research, Waehringer Gürtel 18-20, Vienna, 1090, Austria
| | - Clemens Hahn
- Center for Biomedical Research and Translational Surgery, Medical University of Vienna, Waehringer Gürtel 18-20, Vienna, 1090, Austria
- Ludwig Boltzmann Institute for Cardiovascular Research, Waehringer Gürtel 18-20, Vienna, 1090, Austria
| | - Sophie J Specht
- Center for Biomedical Research and Translational Surgery, Medical University of Vienna, Waehringer Gürtel 18-20, Vienna, 1090, Austria
- Ludwig Boltzmann Institute for Cardiovascular Research, Waehringer Gürtel 18-20, Vienna, 1090, Austria
| | - Ingrid Walter
- Department of Pathobiology, University of Veterinary Medicine, Veterinaerplatz 1, Vienna, 1210, Austria
| | - Karl H Schneider
- Center for Biomedical Research and Translational Surgery, Medical University of Vienna, Waehringer Gürtel 18-20, Vienna, 1090, Austria
- Austrian Cluster for Tissue Regeneration, Donaueschingenstraße 13, Vienna, 1200, Austria
- Ludwig Boltzmann Institute for Cardiovascular Research, Waehringer Gürtel 18-20, Vienna, 1090, Austria
| | - Lydia M Zopf
- Austrian Cluster for Tissue Regeneration, Donaueschingenstraße 13, Vienna, 1200, Austria
- Ludwig Boltzmann Institute for Traumatology, Donaueschingenstraße 13, Vienna, 1200, Austria
| | - Stefan Baudis
- Austrian Cluster for Tissue Regeneration, Donaueschingenstraße 13, Vienna, 1200, Austria
- Institute of Applied Synthetic Chemistry, Technical University of Vienna, Getreidemarkt 9/163, Vienna, 1060, Austria
| | - Robert Liska
- Austrian Cluster for Tissue Regeneration, Donaueschingenstraße 13, Vienna, 1200, Austria
- Institute of Applied Synthetic Chemistry, Technical University of Vienna, Getreidemarkt 9/163, Vienna, 1060, Austria
| | - Heinrich Schima
- Ludwig Boltzmann Institute for Cardiovascular Research, Waehringer Gürtel 18-20, Vienna, 1090, Austria
- Center for Medical Physics and Biomedical Engineering, Medical University of Vienna, Waehringer Gürtel 18-20, Vienna, 1090, Austria
| | - Bruno K Podesser
- Center for Biomedical Research and Translational Surgery, Medical University of Vienna, Waehringer Gürtel 18-20, Vienna, 1090, Austria
- Austrian Cluster for Tissue Regeneration, Donaueschingenstraße 13, Vienna, 1200, Austria
- Ludwig Boltzmann Institute for Cardiovascular Research, Waehringer Gürtel 18-20, Vienna, 1090, Austria
| | - Helga Bergmeister
- Center for Biomedical Research and Translational Surgery, Medical University of Vienna, Waehringer Gürtel 18-20, Vienna, 1090, Austria
- Austrian Cluster for Tissue Regeneration, Donaueschingenstraße 13, Vienna, 1200, Austria
- Ludwig Boltzmann Institute for Cardiovascular Research, Waehringer Gürtel 18-20, Vienna, 1090, Austria
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26
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Harris AG, Iacobazzi D, Caputo M, Bartoli-Leonard F. Graft rejection in paediatric congenital heart disease. Transl Pediatr 2023; 12:1572-1591. [PMID: 37692547 PMCID: PMC10485650 DOI: 10.21037/tp-23-80] [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: 02/10/2023] [Accepted: 07/28/2023] [Indexed: 09/12/2023] Open
Abstract
Congenital heart disease (CHD) affects around 1.35 million neonates worldwide per annum, and surgical repair is necessary in approximately 25% of cases. Xenografts, usually of bovine or porcine origin, are often used for the surgical reconstruction. These xenografts elicit an immune response due to significant immunological incompatibilities between host and donor. Current techniques to dampen the initial hyperacute rejection response involve aldehyde fixation to crosslink xenoantigens, such as galactose-α1,3-galactose and N-glycolylneuraminic acid. While this temporarily masks the epitopes, aldehyde fixation is a suboptimal solution, degrading over time, resulting in cytotoxicity and rejection. The immune response to foreign tissue eventually leads to chronic inflammation and subsequent graft failure, necessitating reintervention to replace the defective bioprosthetic. Decellularisation to remove immunoincompatible material has been suggested as an alternative to fixation and may prove a superior solution. However, incomplete decellularisation poses a significant challenge, causing a substantial immune rejection response and subsequent graft rejection. This review discusses commercially available grafts used in surgical paediatric CHD intervention, looking specifically at bovine jugular vein conduits as a substitute to cryopreserved homografts, as well as decellularised alternatives to the aldehyde-fixed graft. Mechanisms of biological prosthesis rejection are explored, including the signalling cascades of the innate and adaptive immune response. Lastly, emerging strategies of intervention are examined, including the use of tissue from genetically modified pigs, enhanced crosslinking and decellularisation techniques, and augmentation of grafts through in vitro recellularisation or functionalisation with human surface proteins.
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Affiliation(s)
- Amy G. Harris
- Bristol Medical School, Faculty of Health Sciences, University of Bristol, Bristol, UK
| | - Dominga Iacobazzi
- Bristol Medical School, Faculty of Health Sciences, University of Bristol, Bristol, UK
| | - Massimo Caputo
- Bristol Medical School, Faculty of Health Sciences, University of Bristol, Bristol, UK
- Bristol Heart Institute, University Hospital Bristol and Weston NHS Foundation Trust, Bristol, UK
| | - Francesca Bartoli-Leonard
- Bristol Medical School, Faculty of Health Sciences, University of Bristol, Bristol, UK
- Bristol Heart Institute, University Hospital Bristol and Weston NHS Foundation Trust, Bristol, UK
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27
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Li MX, Wei QQ, Mo HL, Ren Y, Zhang W, Lu HJ, Joung YK. Challenges and advances in materials and fabrication technologies of small-diameter vascular grafts. Biomater Res 2023; 27:58. [PMID: 37291675 PMCID: PMC10251629 DOI: 10.1186/s40824-023-00399-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Accepted: 05/21/2023] [Indexed: 06/10/2023] Open
Abstract
The arterial occlusive disease is one of the leading causes of cardiovascular diseases, often requiring revascularization. Lack of suitable small-diameter vascular grafts (SDVGs), infection, thrombosis, and intimal hyperplasia associated with synthetic vascular grafts lead to a low success rate of SDVGs (< 6 mm) transplantation in the clinical treatment of cardiovascular diseases. The development of fabrication technology along with vascular tissue engineering and regenerative medicine technology allows biological tissue-engineered vascular grafts to become living grafts, which can integrate, remodel, and repair the host vessels as well as respond to the surrounding mechanical and biochemical stimuli. Hence, they potentially alleviate the shortage of existing vascular grafts. This paper evaluates the current advanced fabrication technologies for SDVGs, including electrospinning, molding, 3D printing, decellularization, and so on. Various characteristics of synthetic polymers and surface modification methods are also introduced. In addition, it also provides interdisciplinary insights into the future of small-diameter prostheses and discusses vital factors and perspectives for developing such prostheses in clinical applications. We propose that the performance of SDVGs can be improved by integrating various technologies in the near future.
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Affiliation(s)
- Mei-Xian Li
- National and Local Joint Engineering Research Center of Technical Fiber Composites for Safety and Protection, Nantong University, Nantong, 226019, China
- School of Textile and Clothing, Nantong University, Nantong, 226019, China
- Center for Biomaterials, Biomedical Research Institute, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea
| | - Qian-Qi Wei
- Department of Infectious Diseases, General Hospital of Tibet Military Command, Xizang, China
| | - Hui-Lin Mo
- School of Textile and Clothing, Nantong University, Nantong, 226019, China
| | - Yu Ren
- National and Local Joint Engineering Research Center of Technical Fiber Composites for Safety and Protection, Nantong University, Nantong, 226019, China
- School of Textile and Clothing, Nantong University, Nantong, 226019, China
| | - Wei Zhang
- National and Local Joint Engineering Research Center of Technical Fiber Composites for Safety and Protection, Nantong University, Nantong, 226019, China.
- School of Textile and Clothing, Nantong University, Nantong, 226019, China.
| | - Huan-Jun Lu
- Institute of Special Environmental Medicine, Nantong University, Nantong, 226019, China.
| | - Yoon Ki Joung
- Center for Biomaterials, Biomedical Research Institute, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea.
- Division of Bio-Medical Science and Technology, University of Science and Technology (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon, 34113, Republic of Korea.
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Park K, An S, Kim J, Yoon S, Song J, Jung D, Park J, Lee Y, Son D, Seo J. Resealable Antithrombotic Artificial Vascular Graft Integrated with a Self-Healing Blood Flow Sensor. ACS NANO 2023; 17:7296-7310. [PMID: 37026563 DOI: 10.1021/acsnano.2c10657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
Coronary artery bypass grafting is commonly used to treat cardiovascular diseases by replacing blocked blood vessels with autologous or artificial blood vessels. Nevertheless, the availability of autologous vessels in infants and the elderly and low long-term patency rate of grafts hinder extensive application of autologous vessels in clinical practice. The biological and mechanical properties of the resealable antithrombotic artificial vascular graft (RAAVG) fabricated herein, comprising a bioelectronic conduit based on a tough self-healing polymer (T-SHP) and a lubricious inner coating, match with the functions of autologous blood vessels. The self-healing and elastic properties of the T-SHP confer resistance against mechanical stimuli and promote conformal sealing of suturing regions, thereby preventing leakage (stable fixation under a strain of 50%). The inner layer of the RAAVG presents antibiofouling properties against blood cells and proteins, and antithrombotic properties, owing to its lubricious coating. Moreover, the blood-flow sensor fabricated using the T-SHP and carbon nanotubes is seamlessly integrated into the RAAVG via self-healing and allows highly sensitive monitoring of blood flow at low and high flow rates (10- and 100 mL min-1, respectively). Biocompatibility and feasibility of RAAVG as an artificial graft were demonstrated via ex vivo, and in vivo experiment using a rodent model. The use of RAAVGs to replace blocked blood vessels can improve the long-term patency rate of coronary artery bypass grafts.
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Affiliation(s)
- Kijun Park
- School of Electrical and Electronic Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Soojung An
- Department of Electrical and Computer Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
- Center for Neuroscience Imaging Research, Institute for Basic Science (IBS), Suwon 16419, Republic of Korea
| | - Jihyun Kim
- School of Electrical and Electronic Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Sungjun Yoon
- Center for Neuroscience Imaging Research, Institute for Basic Science (IBS), Suwon 16419, Republic of Korea
- Department of Superintelligence Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Jihyang Song
- Center for Neuroscience Imaging Research, Institute for Basic Science (IBS), Suwon 16419, Republic of Korea
- Department of Superintelligence Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Daekwang Jung
- Department of Electrical and Computer Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
- Center for Neuroscience Imaging Research, Institute for Basic Science (IBS), Suwon 16419, Republic of Korea
| | - Jae Park
- School of Electrical and Electronic Engineering, Yonsei University, Seoul 03722, Republic of Korea
- Lynk Solutec Inc., Seoul 03722, Republic of Korea
| | - Yeontaek Lee
- School of Electrical and Electronic Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Donghee Son
- Department of Electrical and Computer Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
- Center for Neuroscience Imaging Research, Institute for Basic Science (IBS), Suwon 16419, Republic of Korea
- Department of Superintelligence Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Jungmok Seo
- School of Electrical and Electronic Engineering, Yonsei University, Seoul 03722, Republic of Korea
- Lynk Solutec Inc., Seoul 03722, Republic of Korea
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Chen J, Zhang D, Wu LP, Zhao M. Current Strategies for Engineered Vascular Grafts and Vascularized Tissue Engineering. Polymers (Basel) 2023; 15:polym15092015. [PMID: 37177162 PMCID: PMC10181238 DOI: 10.3390/polym15092015] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 04/21/2023] [Accepted: 04/21/2023] [Indexed: 05/15/2023] Open
Abstract
Blood vessels not only transport oxygen and nutrients to each organ, but also play an important role in the regulation of tissue regeneration. Impaired or occluded vessels can result in ischemia, tissue necrosis, or even life-threatening events. Bioengineered vascular grafts have become a promising alternative treatment for damaged or occlusive vessels. Large-scale tubular grafts, which can match arteries, arterioles, and venules, as well as meso- and microscale vasculature to alleviate ischemia or prevascularized engineered tissues, have been developed. In this review, materials and techniques for engineering tubular scaffolds and vasculature at all levels are discussed. Examples of vascularized tissue engineering in bone, peripheral nerves, and the heart are also provided. Finally, the current challenges are discussed and the perspectives on future developments in biofunctional engineered vessels are delineated.
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Affiliation(s)
- Jun Chen
- Department of Organ Transplantation, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China
- Center for Chemical Biology and Drug Discovery, Laboratory of Computational Biomedicine, Guangzhou Institute of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
| | - Di Zhang
- Center for Chemical Biology and Drug Discovery, Laboratory of Computational Biomedicine, Guangzhou Institute of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
| | - Lin-Ping Wu
- Center for Chemical Biology and Drug Discovery, Laboratory of Computational Biomedicine, Guangzhou Institute of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
| | - Ming Zhao
- Department of Organ Transplantation, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China
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Shin S, Brunel LG, Cai B, Kilian D, Roth JG, Seymour AJ, Heilshorn SC. Gelation of Uniform Interfacial Diffusant in Embedded 3D Printing. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.04.02.535250. [PMID: 37066190 PMCID: PMC10104000 DOI: 10.1101/2023.04.02.535250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
While the human body has many different examples of perfusable structures with complex geometries, biofabrication methods to replicate this complexity are still lacking. Specifically, the fabrication of self-supporting, branched networks with multiple channel diameters is particularly challenging. Here, we present the Gelation of Uniform Interfacial Diffusant in Embedded 3D Printing (GUIDE-3DP) approach for constructing perfusable networks of interconnected channels with precise control over branching geometries and vessel sizes. To achieve user-specified channel dimensions, this technique leverages the predictable diffusion of crosslinking reaction-initiators released from sacrificial inks printed within a hydrogel precursor. We demonstrate the versatility of GUIDE-3DP to be adapted for use with diverse physiochemical crosslinking mechanisms by designing seven printable material systems. Importantly, GUIDE-3DP allows for the independent tunability of both the inner and outer diameters of the printed channels and the ability to fabricate seamless junctions at branch points. This 3D bioprinting platform is uniquely suited for fabricating lumenized structures with complex shapes characteristic of multiple hollow vessels throughout the body. As an exemplary application, we demonstrate the fabrication of vasculature-like networks lined with endothelial cells. GUIDE-3DP represents an important advance toward the fabrication of self-supporting, physiologically relevant networks with intricate and perfusable geometries.
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Yao Y, Zaw AM, Anderson DE, Jeong Y, Kunihiro J, Hinds MT, Yim EK. Fucoidan and topography modification improved in situ endothelialization on acellular synthetic vascular grafts. Bioact Mater 2023; 22:535-550. [PMID: 36330164 PMCID: PMC9619221 DOI: 10.1016/j.bioactmat.2022.10.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2022] [Revised: 09/20/2022] [Accepted: 10/09/2022] [Indexed: 11/13/2022] Open
Abstract
Thrombogenesis remains the primary failure of synthetic vascular grafts. Endothelial coverage is crucial to provide an antithrombogenic surface. However, most synthetic materials do not support cell adhesion, and transanastomotic endothelial migration is limited. Here, a surface modification strategy using fucoidan and topography was developed to enable fast in situ endothelialization of polyvinyl alcohol, which is not endothelial cell-adhesive. Among three different immobilization approaches compared, conjugation of aminated-fucoidan promoted endothelial monolayer formation while minimizing thrombogenicity in both in vitro platelet rich plasma testing and ex vivo non-human primate shunt assay. Screening of six topographical patterns showed that 2 μm gratings increased endothelial cell migration without inducing inflammation responses of endothelial cells. Mechanistic studies demonstrated that fucoidan could attract fibronectin, enabling integrin binding and focal adhesion formation and activating focal adhesion kinase (FAK) signaling, and 2 μm gratings further enhanced FAK-mediated cell migration. In a clinically relevant rabbit carotid artery end-to-side anastomosis model, 60% in situ endothelialization was observed throughout the entire lumen of 1.7 mm inner diameter modified grafts, compared to 0% of unmodified graft, and the four-week graft patency also increased. This work presents a promising strategy to stimulate in situ endothelialization on synthetic materials for improving long-term performance.
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Affiliation(s)
- Yuan Yao
- Department of Chemical Engineering, University of Waterloo, 200 University Avenue West, Waterloo, ON, N2L 3G1, Canada
| | - Aung Moe Zaw
- Department of Chemical Engineering, University of Waterloo, 200 University Avenue West, Waterloo, ON, N2L 3G1, Canada
| | - Deirdre E.J. Anderson
- Department of Biomedical Engineering, Oregon Health & Science University, Portland, OR, 97239, USA
| | - YeJin Jeong
- Department of Chemical Engineering, University of Waterloo, 200 University Avenue West, Waterloo, ON, N2L 3G1, Canada
| | - Joshua Kunihiro
- Department of Chemical Engineering, University of Waterloo, 200 University Avenue West, Waterloo, ON, N2L 3G1, Canada
| | - Monica T. Hinds
- Department of Biomedical Engineering, Oregon Health & Science University, Portland, OR, 97239, USA
| | - Evelyn K.F. Yim
- Department of Chemical Engineering, University of Waterloo, 200 University Avenue West, Waterloo, ON, N2L 3G1, Canada
- Waterloo Institute for Nanotechnology, University of Waterloo, 200 University Avenue West, Waterloo, ON, N2L 3G1, Canada
- Center for Biotechnology and Bioengineering, University of Waterloo, 200 University Avenue West, Waterloo, ON, N2L 3G1, Canada
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Barungi S, Hernández-Camarero P, Moreno-Terribas G, Villalba-Montoro R, Marchal JA, López-Ruiz E, Perán M. Clinical implications of inflammation in atheroma formation and novel therapies in cardiovascular diseases. Front Cell Dev Biol 2023; 11:1148768. [PMID: 37009489 PMCID: PMC10061140 DOI: 10.3389/fcell.2023.1148768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Accepted: 03/06/2023] [Indexed: 03/18/2023] Open
Abstract
Cardiovascular diseases (CVD) are the leading causes of death and disability in the world. Among all CVD, the most common is coronary artery disease (CAD). CAD results from the complications promoted by atherosclerosis, which is characterized by the accumulation of atherosclerotic plaques that limit and block the blood flow of the arteries involved in heart oxygenation. Atherosclerotic disease is usually treated by stents implantation and angioplasty, but these surgical interventions also favour thrombosis and restenosis which often lead to device failure. Hence, efficient and long-lasting therapeutic options that are easily accessible to patients are in high demand. Advanced technologies including nanotechnology or vascular tissue engineering may provide promising solutions for CVD. Moreover, advances in the understanding of the biological processes underlying atherosclerosis can lead to a significant improvement in the management of CVD and even to the development of novel efficient drugs. To note, over the last years, the observation that inflammation leads to atherosclerosis has gained interest providing a link between atheroma formation and oncogenesis. Here, we have focused on the description of the available therapy for atherosclerosis, including surgical treatment and experimental treatment, the mechanisms of atheroma formation, and possible novel therapeutic candidates such as the use of anti-inflammatory treatments to reduce CVD.
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Affiliation(s)
- Shivan Barungi
- Department of Health Sciences, University of Jaén, Jaén, Spain
| | | | | | | | - Juan Antonio Marchal
- Centre for Biomedical Research (CIBM), Biopathology and Regenerative Medicine Institute (IBIMER), University of Granada, Granada, Spain
- Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain
- Department of Human Anatomy and Embryology, Faculty of Medicine, University of Granada, Granada, Spain
- Excellence Research Unit “Modeling Nature” (MNat), University of Granada, Granada, Spain
| | - Elena López-Ruiz
- Department of Health Sciences, University of Jaén, Jaén, Spain
- Excellence Research Unit “Modeling Nature” (MNat), University of Granada, Granada, Spain
- *Correspondence: Elena López-Ruiz, ; Macarena Perán,
| | - Macarena Perán
- Department of Health Sciences, University of Jaén, Jaén, Spain
- Centre for Biomedical Research (CIBM), Biopathology and Regenerative Medicine Institute (IBIMER), University of Granada, Granada, Spain
- Excellence Research Unit “Modeling Nature” (MNat), University of Granada, Granada, Spain
- *Correspondence: Elena López-Ruiz, ; Macarena Perán,
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A vertical additive-lathe printing system for the fabrication of tubular constructs using gelatin methacryloyl hydrogel. J Mech Behav Biomed Mater 2023; 139:105665. [PMID: 36640542 DOI: 10.1016/j.jmbbm.2023.105665] [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: 10/21/2022] [Revised: 12/26/2022] [Accepted: 01/05/2023] [Indexed: 01/09/2023]
Abstract
Reproducing both the mechanical and biological performance of native blood vessels remains an ongoing challenge in vascular tissue engineering. Additive-lathe printing offers an attractive method of fabricating long tubular constructs as a potential vascular graft for the treatment of cardiovascular diseases. Printing hydrogels onto rotating horizontal mandrels often leads to sagging, resulting in poor and variable mechanical properties. In this study, an additive-lathe printing system with a vertical mandrel to fabricate tubular constructs is presented. Various concentrations of gelatin methacryloyl (gelMA) hydrogel were used to print grafts on the rotating mandrel in a helical pattern. The printing parameters were selected to achieve the bonding of consecutive gelMA filaments to improve the quality of the printed graft. The hydrogel filaments were fused properly under the action of gravity on the vertical mandrel. Thus, the vertical additive-lathe printing system was used to print uniform wall thickness grafts, eliminating the hydrogel sagging problem. Tensile testing performed in both circumferential and longitudinal direction revealed that the anisotropic properties of printed gelMA constructs were similar to those observed in the native blood vessels. In addition, no leakage was detected through the walls of the gelMA grafts during burst pressure measurement. Therefore, the current printing setup could be utilized to print vascular grafts for the treatment of cardiovascular diseases.
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Biological Scaffolds for Congenital Heart Disease. BIOENGINEERING (BASEL, SWITZERLAND) 2023; 10:bioengineering10010057. [PMID: 36671629 PMCID: PMC9854830 DOI: 10.3390/bioengineering10010057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Revised: 12/20/2022] [Accepted: 12/26/2022] [Indexed: 01/05/2023]
Abstract
Congenital heart disease (CHD) is the most predominant birth defect and can require several invasive surgeries throughout childhood. The absence of materials with growth and remodelling potential is a limitation of currently used prosthetics in cardiovascular surgery, as well as their susceptibility to calcification. The field of tissue engineering has emerged as a regenerative medicine approach aiming to develop durable scaffolds possessing the ability to grow and remodel upon implantation into the defective hearts of babies and children with CHD. Though tissue engineering has produced several synthetic scaffolds, most of them failed to be successfully translated in this life-endangering clinical scenario, and currently, biological scaffolds are the most extensively used. This review aims to thoroughly summarise the existing biological scaffolds for the treatment of paediatric CHD, categorised as homografts and xenografts, and present the preclinical and clinical studies. Fixation as well as techniques of decellularisation will be reported, highlighting the importance of these approaches for the successful implantation of biological scaffolds that avoid prosthetic rejection. Additionally, cardiac scaffolds for paediatric CHD can be implanted as acellular prostheses, or recellularised before implantation, and cellularisation techniques will be extensively discussed.
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Shen M, Wang L, Gao Y, Feng L, Xu C, Li S, Wang X, Wu Y, Guo Y, Pei G. 3D bioprinting of in situ vascularized tissue engineered bone for repairing large segmental bone defects. Mater Today Bio 2022; 16:100382. [PMID: 36033373 PMCID: PMC9403505 DOI: 10.1016/j.mtbio.2022.100382] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2022] [Revised: 07/21/2022] [Accepted: 07/23/2022] [Indexed: 11/18/2022] Open
Abstract
Large bone defects remain an unsolved clinical challenge because of the lack of effective vascularization in newly formed bone tissue. 3D bioprinting is a fabrication technology with the potential to create vascularized bone grafts with biological activity for repairing bone defects. In this study, vascular endothelial cells laden with thermosensitive bio-ink were bioprinted in situ on the inner surfaces of interconnected tubular channels of bone mesenchymal stem cell-laden 3D-bioprinted scaffolds. Endothelial cells exhibited a more uniform distribution and greater seeding efficiency throughout the channels. In vitro, the in situ bioprinted endothelial cells can form a vascular network through proliferation and migration. The in situ vascularized tissue-engineered bone also resulted in a coupling effect between angiogenesis and osteogenesis. Moreover, RNA sequencing analysis revealed that the expression of genes related to osteogenesis and angiogenesis is upregulated in biological processes. The in vivo 3D-bioprinted in situ vascularized scaffolds exhibited excellent performance in promoting new bone formation in rat calvarial critical-sized defect models. Consequently, in situ vascularized tissue-engineered bones constructed using 3D bioprinting technology have a potential of being used as bone grafts for repairing large bone defects, with a possible clinical application in the future. 3D bioprinting was used to fabricate in situ vascularized tissue engineered bone. In situ bioprinted endothelial cells exhibited uniform distribution and greater seeding efficiency. 3D-bioprinted scaffold produced coupling between angiogenesis and osteogenesis.
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Key Words
- 3D bioprinted BMSCs-laden GelMA hydrogel scaffold, (GB)
- 3D bioprinting
- 3D dual-extrusion bioprinted BMSCs-laden GelMA hydrogel and RAOECs-laden 3P hydrogel scaffold, (GB-3PR)
- 3D dual-extrusion bioprinted GelMA hydrogel and RAOECs-laden 3P hydrogel scaffold, (G-3PR)
- 3D printed GelMA hydrogel scaffold, (G)
- 4′,6-diamidino-2-phenylindole, (DAPI)
- Alizarin red S, (ARS)
- Alkaline phosphatase, (ALP)
- Dulbecco's modified Eagle's medium, (DMEM)
- Dulbecco's phosphate-buffered saline, (DPBS)
- Fourier-transform infrared, (FTIR)
- In situ vascularization
- Large segmental bone defects
- PLA-PEG-PLA, (3P)
- RNA sequencing Analysis
- Tissue engineering
- analysis of variance, (ANOVA)
- bone mesenchymal stem cells, (BMSCs)
- bone mineral density, (BMD)
- bone volume to tissue volume, (BV/TV)
- complementary DNA, (cDNA)
- differentially expressed genes, (DEGs)
- endothelial cells, (ECs)
- ethylenediamine tetraacetic acid, (EDTA)
- extracellular matrix, (ECM)
- fetal bovine serum, (FBS)
- gelatin methacryloyl, (GelMA)
- gene ontology, (GO)
- glyceraldehyde-3-phosphate dehydrogenase, (GAPDH)
- green fluorescent protein, (GFP)
- hematoxylin and eosin, (H&E)
- lithium phenyl-2,4,6-trimethylbenzoylphosphinate, (LAP)
- micro-computed tomography, (micro-CT)
- nuclear magnetic resonance, (NMR)
- optical density, (OD)
- paraformaldehyde, (PFA)
- phosphate-buffered saline, (PBS)
- polyethylene glycol, (PEG)
- polylactic acid, (PLA)
- polyvinylidene fluoride, (PVDF)
- radioimmunoprecipitation assay, (RIPA)
- rat aortic endothelial cells, (RAOECs)
- real-time polymerase chain reaction, (RT-PCR)
- standard deviation, (SD)
- tissue-engineered bone, (TEB)
- tris buffered saline with Tween-20, (TBST)
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Affiliation(s)
- Mingkui Shen
- School of Medicine, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Lulu Wang
- School of Medicine, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Yi Gao
- School of Medicine, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Li Feng
- School of Medicine, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Chuangye Xu
- School of Medicine, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Sijing Li
- School of Medicine, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Xiaohu Wang
- Department of Orthopedics, Affiliated to Zhengzhou University, Zhengzhou, 450007, China
| | - Yulan Wu
- School of Medicine, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Yao Guo
- School of Medicine, Southern University of Science and Technology, Shenzhen, 518055, China
- Corresponding author.
| | - Guoxian Pei
- School of Medicine, Southern University of Science and Technology, Shenzhen, 518055, China
- Corresponding author.
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Biomimetic and Bioactive Small Diameter Tubular Scaffolds for Vascular Tissue Engineering. Biomimetics (Basel) 2022; 7:biomimetics7040199. [PMID: 36412727 PMCID: PMC9680506 DOI: 10.3390/biomimetics7040199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 11/03/2022] [Accepted: 11/07/2022] [Indexed: 11/16/2022] Open
Abstract
The present work aimed at the production and characterization of small caliber biomimetic and bioactive tubular scaffolds, which are able to favor the endothelialization process, and therefore potentially be suitable for vascular tissue engineering. The tubular scaffolds were produced using a specially designed mold, starting from a gelatin/gellan/elastin (GGE) blend, selected to mimic the composition of the extracellular matrix of native blood vessels. GGE scaffolds were obtained through freeze-drying and subsequent cross-linking. To obtain systems capable of promoting endothelization, the scaffolds were functionalized using two different bioactive peptides, Gly-Arg-Gly-Asp-Ser-Pro (GRGSDP) and Arg-Glu-Asp-Val (REDV). A complete physicochemical, mechanical, functional, and biological characterization of the developed scaffolds was performed. GGE scaffolds showed a good porosity, which could promote cell infiltration and proliferation and a dense external surface, which could avoid bleeding. Moreover, developed scaffolds showed good hydrophilicity, an elastic behavior similar to natural vessels, suitability for sterilization by an ISO accepted treatment, and an adequate suture retention strength. In vitro cell culture tests showed no cytotoxic activity against 3T3 fibroblasts. The functionalization with the REDV peptide favored the adhesion and growth of endothelial cells, while GRGDSP-modified scaffolds represented a better substrate for fibroblasts.
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Wang X, Chan V, Corridon PR. Acellular Tissue-Engineered Vascular Grafts from Polymers: Methods, Achievements, Characterization, and Challenges. Polymers (Basel) 2022; 14:4825. [PMID: 36432950 PMCID: PMC9695055 DOI: 10.3390/polym14224825] [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: 09/28/2022] [Revised: 11/03/2022] [Accepted: 11/03/2022] [Indexed: 11/11/2022] Open
Abstract
Extensive and permanent damage to the vasculature leading to different pathogenesis calls for developing innovative therapeutics, including drugs, medical devices, and cell therapies. Innovative strategies to engineer bioartificial/biomimetic vessels have been extensively exploited as an effective replacement for vessels that have seriously malfunctioned. However, further studies in polymer chemistry, additive manufacturing, and rapid prototyping are required to generate highly engineered vascular segments that can be effectively integrated into the existing vasculature of patients. One recently developed approach involves designing and fabricating acellular vessel equivalents from novel polymeric materials. This review aims to assess the design criteria, engineering factors, and innovative approaches for the fabrication and characterization of biomimetic macro- and micro-scale vessels. At the same time, the engineering correlation between the physical properties of the polymer and biological functionalities of multiscale acellular vascular segments are thoroughly elucidated. Moreover, several emerging characterization techniques for probing the mechanical properties of tissue-engineered vascular grafts are revealed. Finally, significant challenges to the clinical transformation of the highly promising engineered vessels derived from polymers are identified, and unique perspectives on future research directions are presented.
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Affiliation(s)
- Xinyu Wang
- Department of Biomedical Engineering and Healthcare Engineering Innovation Center, Khalifa University, Abu Dhabi P.O. Box 127788, United Arab Emirates
- Department of Immunology and Physiology, College of Medicine and Health Sciences, Khalifa University, Abu Dhabi P.O. Box 127788, United Arab Emirates
| | - Vincent Chan
- Department of Biomedical Engineering and Healthcare Engineering Innovation Center, Khalifa University, Abu Dhabi P.O. Box 127788, United Arab Emirates
| | - Peter R. Corridon
- Department of Biomedical Engineering and Healthcare Engineering Innovation Center, Khalifa University, Abu Dhabi P.O. Box 127788, United Arab Emirates
- Department of Immunology and Physiology, College of Medicine and Health Sciences, Khalifa University, Abu Dhabi P.O. Box 127788, United Arab Emirates
- Center for Biotechnology, Khalifa University, Abu Dhabi P.O. Box 127788, United Arab Emirates
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Su Z, Xing Y, Wang F, Xu Z, Gu Y. Biological small-calibre tissue engineered blood vessels developed by electrospinning and in-body tissue architecture. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2022; 33:67. [PMID: 36178545 PMCID: PMC9525370 DOI: 10.1007/s10856-022-06689-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Accepted: 08/27/2022] [Indexed: 06/16/2023]
Abstract
There are no suitable methods to develop the small-calibre tissue-engineered blood vessels (TEBVs) that can be widely used in the clinic. In this study, we developed a new method that combines electrospinning and in-body tissue architecture(iBTA) to develop small-calibre TEBVs. Electrospinning imparted mechanical properties to the TEBVs, and the iBTA imparted biological properties to the TEBVs. The hybrid fibres of PLCL (poly(L-lactic-co-ε-caprolactone) and PU (Polyurethane) were obtained by electrospinning, and the fibre scaffolds were then implanted subcutaneously in the abdominal area of the rabbit (as an in vivo bioreactor). The biotubes were harvested after four weeks. The mechanical properties of the biotubes were most similar to those of the native rabbit aorta. Biotubes and the PLCL/PU vascular scaffolds were implanted into the rabbit carotid artery. The biotube exhibited a better patency rate and certain remodelling ability in the rabbit model, which indicated the potential use of this hybridization method to develop small-calibre TEBVs. Sketch map of developing the biotube. The vascular scaffolds were prepared by electrospinning (A). Silicone tube was used as the core, and the vascular scaffold was used as the shell (B). The vascular scaffold and silicone tube were implanted subcutaneously in the abdominal area of the rabbit (C). The biotube was extruded from the silicone tube after 4 weeks ofembedding (D). The biotube was implanted for the rabbit carotid artery (E).
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Affiliation(s)
- Zhixiang Su
- Vascular Surgery Department, Xuanwu Hospital, Capital Medical University, 100053, Beijing, China
| | - Yuehao Xing
- Department of Cardiovascular Surgery, Beijing Children's Hospital, National Center for Children's Health, Capital Medical University, 100045, Beijing, China
| | - Fei Wang
- Vascular Surgery Department, Xuanwu Hospital, Capital Medical University, 100053, Beijing, China
| | - Zeqin Xu
- Vascular Surgery Department, Xuanwu Hospital, Capital Medical University, 100053, Beijing, China
| | - Yongquan Gu
- Vascular Surgery Department, Xuanwu Hospital, Capital Medical University, 100053, Beijing, China.
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Fusco D, Meissner F, Podesser BK, Marsano A, Grapow M, Eckstein F, Winkler B. Small-diameter bacterial cellulose-based vascular grafts for coronary artery bypass grafting in a pig model. Front Cardiovasc Med 2022; 9:881557. [PMID: 36225961 PMCID: PMC9548626 DOI: 10.3389/fcvm.2022.881557] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Accepted: 08/22/2022] [Indexed: 11/19/2022] Open
Abstract
Surgical revascularization is the gold standard in most cases of complex coronary artery disease. For coronary artery bypass grafting, autologous grafts are state-of-the-art due to their long-term patency. A non-negligible amount of patients lack suitable bypass material as a result of concomitant diseases or previous interventions. As a promising alternative, tissue-engineered vascular grafts made of biomaterials such as bacterial cellulose (BC) are gaining more and more attention. However, the production of small-diameter grafts (inner diameter < 6 mm) of application-oriented length (> 5 cm) and their in vivo long-term patency remain challenging. In this study, grafts of 20 cm in length with an inner diameter of 3 mm were generated in a custom-made bioreactor. To potentially improve graft compliance and, therefore in vivo patency, BC was combined with an embedded cobalt–chromium mesh. The grafts were designed for in vivo endothelialization and specific surgical properties and implanted as an aortocoronary bypass in a left anterior descending occluded pig model (n = 8). Coronary angiography showed complete patency postoperatively at 4 weeks. Following 4 weeks in vivo, the grafts were explanted revealing a three-layered wall structure. Grafts were colonized by smooth muscle cells and a luminal layer of endothelial cells with early formation of vasa privata indicating functional remodeling. These encouraging findings in a large animal model reveal the great potential of small-diameter BC grafts for coronary and peripheral bypass grafting.
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Affiliation(s)
- Deborah Fusco
- Department of Biomedicine, University of Basel, Basel, Switzerland
- Department of Cardiac Surgery, University Hospital Basel, Basel, Switzerland
| | - Florian Meissner
- Department of Biomedicine, University of Basel, Basel, Switzerland
- Department of Cardiac Surgery, University Hospital Basel, Basel, Switzerland
| | - Bruno K. Podesser
- Center for Biomedical Research, Medical University Vienna, Vienna, Austria
| | - Anna Marsano
- Department of Biomedicine, University of Basel, Basel, Switzerland
- Department of Cardiac Surgery, University Hospital Basel, Basel, Switzerland
| | - Martin Grapow
- Department of Cardiac Surgery, University Hospital Basel, Basel, Switzerland
- Heart Center Hirslanden Zurich, Zurich, Switzerland
| | - Friedrich Eckstein
- Department of Biomedicine, University of Basel, Basel, Switzerland
- Department of Cardiac Surgery, University Hospital Basel, Basel, Switzerland
| | - Bernhard Winkler
- Department of Cardiac Surgery, University Hospital Basel, Basel, Switzerland
- Center for Biomedical Research, Medical University Vienna, Vienna, Austria
- Department of Cardiovascular Surgery, Vienna Heart Center KFL, Vienna, Austria
- *Correspondence: Bernhard Winkler,
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Ozdemir S, Yalcin-Enis I, Yalcinkaya B, Yalcinkaya F. An Investigation of the Constructional Design Components Affecting the Mechanical Response and Cellular Activity of Electrospun Vascular Grafts. MEMBRANES 2022; 12:929. [PMID: 36295688 PMCID: PMC9607146 DOI: 10.3390/membranes12100929] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 09/20/2022] [Accepted: 09/22/2022] [Indexed: 06/16/2023]
Abstract
Cardiovascular disease is anticipated to remain the leading cause of death globally. Due to the current problems connected with using autologous arteries for bypass surgery, researchers are developing tissue-engineered vascular grafts (TEVGs). The major goal of vascular tissue engineering is to construct prostheses that closely resemble native blood vessels in terms of morphological, mechanical, and biological features so that these scaffolds can satisfy the functional requirements of the native tissue. In this setting, morphology and cellular investigation are usually prioritized, while mechanical qualities are generally addressed superficially. However, producing grafts with good mechanical properties similar to native vessels is crucial for enhancing the clinical performance of vascular grafts, exposing physiological forces, and preventing graft failure caused by intimal hyperplasia, thrombosis, aneurysm, blood leakage, and occlusion. The scaffold's design and composition play a significant role in determining its mechanical characteristics, including suturability, compliance, tensile strength, burst pressure, and blood permeability. Electrospun prostheses offer various models that can be customized to resemble the extracellular matrix. This review aims to provide a comprehensive and comparative review of recent studies on the mechanical properties of fibrous vascular grafts, emphasizing the influence of structural parameters on mechanical behavior. Additionally, this review provides an overview of permeability and cell growth in electrospun membranes for vascular grafts. This work intends to shed light on the design parameters required to maintain the mechanical stability of vascular grafts placed in the body to produce a temporary backbone and to be biodegraded when necessary, allowing an autologous vessel to take its place.
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Affiliation(s)
- Suzan Ozdemir
- Textile Engineering Department, Textile Technologies and Design Faculty, Istanbul Technical University, Beyoglu, 34467 Istanbul, Turkey
| | - Ipek Yalcin-Enis
- Textile Engineering Department, Textile Technologies and Design Faculty, Istanbul Technical University, Beyoglu, 34467 Istanbul, Turkey
| | - Baturalp Yalcinkaya
- Department of Material Science, Faculty of Mechanical Engineering, Technical University of Liberec, 461 17 Liberec, Czech Republic
| | - Fatma Yalcinkaya
- Department of Environmental Technology, Institute for Nanomaterials, Advanced Technologies and Innovations, Technical University of Liberec, 461 17 Liberec, Czech Republic
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Singh G, Singh S, Kumar R, Parkash C, Pruncu C, Ramakrishna S. Tissues and organ printing: An evolution of technology and materials. Proc Inst Mech Eng H 2022; 236:1695-1710. [DOI: 10.1177/09544119221125084] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Since its beginnings, three-dimensional printing (3DP) technology has been successful because of ongoing advances in operating principles, the range of materials and cost-saving measures. However, the 3DP technological progressions in the biomedical sector have majorly taken place in the last decade after the evolution of novel 3DP systems, generally categorised as bioprinters and biomaterials to provide a replacement, transplantation or regeneration of the damaged organs and tissue constructs of the human body. There is now substantial scientific literature accessible to support the benefits of digital healthcare procedures with the help of bioprinters. It is of the highest significance to know the fundamental principles of the available printers and the compatibility of biomaterials as their feedstock, notwithstanding the huge potential of bioprinting systems to manufacture organs and other human body components. This paper provides a precise and helpful reading of the different categories of bioprinters, suitable biomaterials, numerical simulations and modelling and examples of much acknowledged clinical practices. The paper will also cite the prominent issues that still have not received desired solutions. Overall, the article will be of great use for all the professionals, scholars and engineers concerned with the 3DP, bioprinting and biomaterials.
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Affiliation(s)
- Gurminder Singh
- Department of Mechanical Engineering, Indian Institute of Technology Bombay, Mumbai, India
| | - Sunpreet Singh
- Department of Mechanical Engineering, National University of Singapore, Singapore, Singapore
- Mechanical Engineering Department, Chandigarh University, Punjab
| | - Raman Kumar
- Mechanical Engineering, Guru Nanak Dev Engineering College, Ludhiana, Punjab, India
| | - Chander Parkash
- School of Mechanical Engineering, Lovely Professional University, Phagwara, Punjab, India
| | - Catalin Pruncu
- Departimento di Meccanica, Matematica e Management, Politecnico di Bari, 70125 Bari, Italy
| | - Seeram Ramakrishna
- Department of Mechanical Engineering, National University of Singapore, Singapore, Singapore
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Jin W, Liu H, Li Z, Nie P, Zhao G, Cheng X, Zheng G, Yang X. Effect of Hydrogel Contact Angle on Wall Thickness of Artificial Blood Vessel. Int J Mol Sci 2022; 23:11114. [PMID: 36232417 PMCID: PMC9570380 DOI: 10.3390/ijms231911114] [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: 08/25/2022] [Revised: 09/16/2022] [Accepted: 09/18/2022] [Indexed: 11/21/2022] Open
Abstract
Vascular replacement is one of the most effective tools to solve cardiovascular diseases, but due to the limitations of autologous transplantation, size mismatch, etc., the blood vessels for replacement are often in short supply. The emergence of artificial blood vessels with 3D bioprinting has been expected to solve this problem. Blood vessel prosthesis plays an important role in the field of cardiovascular medical materials. However, a small-diameter blood vessel prosthesis (diameter < 6 mm) is still unable to achieve wide clinical application. In this paper, a response surface analysis was firstly utilized to obtain the relationship between the contact angle and the gelatin/sodium alginate mixed hydrogel solution at different temperatures and mass percentages. Then, the self-developed 3D bioprinter was used to obtain the optimal printing spacing under different conditions through row spacing, printing, and verifying the relationship between the contact angle and the printing thickness. Finally, the relationship between the blood vessel wall thickness and the contact angle was obtained by biofabrication with 3D bioprinting, which can also confirm the controllability of the vascular membrane thickness molding. It lays a foundation for the following study of the small caliber blood vessel printing molding experiment.
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Affiliation(s)
- Wenyu Jin
- College of Mechanical Engineering, Shandong University of Technology, Zibo 255000, China
- Shandong Provincial Key Laboratory of Precision Manufacturing and Non-Traditional Machining, Zibo 255000, China
| | - Huanbao Liu
- College of Mechanical Engineering, Shandong University of Technology, Zibo 255000, China
- Shandong Provincial Key Laboratory of Precision Manufacturing and Non-Traditional Machining, Zibo 255000, China
| | - Zihan Li
- College of Mechanical Engineering, Shandong University of Technology, Zibo 255000, China
- Shandong Provincial Key Laboratory of Precision Manufacturing and Non-Traditional Machining, Zibo 255000, China
| | - Ping Nie
- College of Mechanical Engineering, Shandong University of Technology, Zibo 255000, China
| | - Guangxi Zhao
- College of Mechanical Engineering, Shandong University of Technology, Zibo 255000, China
- Shandong Provincial Key Laboratory of Precision Manufacturing and Non-Traditional Machining, Zibo 255000, China
| | - Xiang Cheng
- College of Mechanical Engineering, Shandong University of Technology, Zibo 255000, China
- Shandong Provincial Key Laboratory of Precision Manufacturing and Non-Traditional Machining, Zibo 255000, China
| | - Guangming Zheng
- College of Mechanical Engineering, Shandong University of Technology, Zibo 255000, China
- Shandong Provincial Key Laboratory of Precision Manufacturing and Non-Traditional Machining, Zibo 255000, China
| | - Xianhai Yang
- College of Mechanical Engineering, Shandong University of Technology, Zibo 255000, China
- Shandong Provincial Key Laboratory of Precision Manufacturing and Non-Traditional Machining, Zibo 255000, China
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43
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Zia AW, Liu R, Wu X. Structural design and mechanical performance of composite vascular grafts. Biodes Manuf 2022. [DOI: 10.1007/s42242-022-00201-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
AbstractThis study reviews the state of the art in structural design and the corresponding mechanical behaviours of composite vascular grafts. We critically analyse surface and matrix designs composed of layered, embedded, and hybrid structures along the radial and longitudinal directions; materials and manufacturing techniques, such as tissue engineering and the use of textiles or their combinations; and the corresponding mechanical behaviours of composite vascular grafts in terms of their physical–mechanical properties, especially their stress–strain relationships and elastic recovery. The role of computational studies is discussed with respect to optimizing the geometrics designs and the corresponding mechanical behaviours to satisfy specialized applications, such as those for the aorta and its subparts. Natural and synthetic endothelial materials yield improvements in the mechanical and biological compliance of composite graft surfaces with host arteries. Moreover, the diameter, wall thickness, stiffness, compliance, tensile strength, elasticity, and burst strength of the graft matrix are determined depending on the application and the patient. For composite vascular grafts, hybrid architectures are recommended featuring multiple layers, dimensions, and materials to achieve the desired optimal flexibility and function for complying with user-specific requirements. Rapidly emerging artificial intelligence and big data techniques for diagnostics and the three-dimensional (3D) manufacturing of vascular grafts will likely yield highly compliant, subject-specific, long-lasting, and economical vascular grafts in the near-future.
Graphic abstract
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Small Diameter Cell-Free Tissue-Engineered Vascular Grafts: Biomaterials and Manufacture Techniques to Reach Suitable Mechanical Properties. Polymers (Basel) 2022; 14:polym14173440. [PMID: 36080517 PMCID: PMC9460130 DOI: 10.3390/polym14173440] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 07/06/2022] [Accepted: 07/06/2022] [Indexed: 12/25/2022] Open
Abstract
Vascular grafts (VGs) are medical devices intended to replace the function of a blood vessel. Available VGs in the market present low patency rates for small diameter applications setting the VG failure. This event arises from the inadequate response of the cells interacting with the biomaterial in the context of operative conditions generating chronic inflammation and a lack of regenerative signals where stenosis or aneurysms can occur. Tissue Engineered Vascular grafts (TEVGs) aim to induce the regeneration of the native vessel to overcome these limitations. Besides the biochemical stimuli, the biomaterial and the particular micro and macrostructure of the graft will determine the specific behavior under pulsatile pressure. The TEVG must support blood flow withstanding the exerted pressure, allowing the proper compliance required for the biomechanical stimulation needed for regeneration. Although the international standards outline the specific requirements to evaluate vascular grafts, the challenge remains in choosing the proper biomaterial and manufacturing TEVGs with good quality features to perform satisfactorily. In this review, we aim to recognize the best strategies to reach suitable mechanical properties in cell-free TEVGs according to the reported success of different approaches in clinical trials and pre-clinical trials.
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Potere F, Belgio B, Croci GA, Tabano S, Petrini P, Dubini G, Boschetti F, Mantero S. 3D bioprinting of multi-layered segments of a vessel-like structure with ECM and novel derived bioink. Front Bioeng Biotechnol 2022; 10:918690. [PMID: 36061430 PMCID: PMC9437706 DOI: 10.3389/fbioe.2022.918690] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Accepted: 07/25/2022] [Indexed: 11/13/2022] Open
Abstract
3D-Bioprinting leads to the realization of tridimensional customized constructs to reproduce the biological structural complexity. The new technological challenge focuses on obtaining a 3D structure with several distinct layers to replicate the hierarchical organization of natural tissues. This work aims to reproduce large blood vessel substitutes compliant with the original tissue, combining the advantages of the 3D bioprinting, decellularization, and accounting for the presence of different cells. The decellularization process was performed on porcine aortas. Various decellularization protocols were tested and evaluated through DNA extraction, quantification, and amplification by PCR to define the adequate one. The decellularized extracellular matrix (dECM), lyophilized and solubilized, was combined with gelatin, alginate, and cells to obtain a novel bioink. Several solutions were tested, tuning the percentage of the components to obtain the adequate structural properties. The geometrical model of the large blood vessel constructs was designed with SolidWorks, and the construct slicing was done using the HeartWare software, which allowed generating the G-Code. The final constructs were 3D bioprinted with the Inkredible + using dual print heads. The composition of the bioink was tuned so that it could withstand the printing of a segment of a tubular construct up to 10 mm and reproduce the multicellular complexity. Among the several compositions tested, the suspension resulting from 8% w/v gelatin, 7% w/v alginate, and 3% w/v dECM, and cells successfully produced the designed structures. With this bioink, it was possible to print structures made up of 20 layers. The dimensions of the printed structures were consistent with the designed ones. We were able to avoid the double bioink overlap in the thickness, despite the increase in the number of layers during the printing process. The optimization of the parameters allowed the production of structures with a height of 20 layers corresponding to 9 mm. Theoretical and real structures were very close. The differences were 14% in height, 20% internal diameter, and 9% thickness. By tailoring the printing parameters and the amount of dECM, adequate mechanical properties could be met. In this study, we developed an innovative printable bioink able to finely reproduce the native complex structure of the large blood vessel.
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Affiliation(s)
- Federica Potere
- Laboratory of Biological Structure Mechanics (LaBS), Politecnico di Milano, Department of Chemistry, Materials and Chemical Engineering “Giulio Natta”, Milan, Italy
- *Correspondence: Federica Potere,
| | - Beatrice Belgio
- Laboratory of Biological Structure Mechanics (LaBS), Politecnico di Milano, Department of Chemistry, Materials and Chemical Engineering “Giulio Natta”, Milan, Italy
| | - Giorgio Alberto Croci
- Division of Pathology, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Milan, Italy
- Department of Pathophysiology and Transplantation, Università, Degli Studi di Milano, Milan, Italy
| | - Silvia Tabano
- Department of Pathophysiology and Transplantation, Università, Degli Studi di Milano, Milan, Italy
- Laboratory of Medical Genetics, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Paola Petrini
- Politecnico di Milano, Department of Chemistry, Materials and Chemical Engineering “Giulio Natta”, Milan, Italy
| | - Gabriele Dubini
- Laboratory of Biological Structure Mechanics (LaBS), Politecnico di Milano, Department of Chemistry, Materials and Chemical Engineering “Giulio Natta”, Milan, Italy
| | - Federica Boschetti
- Laboratory of Biological Structure Mechanics (LaBS), Politecnico di Milano, Department of Chemistry, Materials and Chemical Engineering “Giulio Natta”, Milan, Italy
| | - Sara Mantero
- Laboratory of Biological Structure Mechanics (LaBS), Politecnico di Milano, Department of Chemistry, Materials and Chemical Engineering “Giulio Natta”, Milan, Italy
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Wang X, Chan V, Corridon PR. Decellularized blood vessel development: Current state-of-the-art and future directions. Front Bioeng Biotechnol 2022; 10:951644. [PMID: 36003539 PMCID: PMC9394443 DOI: 10.3389/fbioe.2022.951644] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Accepted: 07/14/2022] [Indexed: 12/31/2022] Open
Abstract
Vascular diseases contribute to intensive and irreversible damage, and current treatments include medications, rehabilitation, and surgical interventions. Often, these diseases require some form of vascular replacement therapy (VRT) to help patients overcome life-threatening conditions and traumatic injuries annually. Current VRTs rely on harvesting blood vessels from various regions of the body like the arms, legs, chest, and abdomen. However, these procedures also produce further complications like donor site morbidity. Such common comorbidities may lead to substantial pain, infections, decreased function, and additional reconstructive or cosmetic surgeries. Vascular tissue engineering technology promises to reduce or eliminate these issues, and the existing state-of-the-art approach is based on synthetic or natural polymer tubes aiming to mimic various types of blood vessel. Burgeoning decellularization techniques are considered as the most viable tissue engineering strategy to fill these gaps. This review discusses various approaches and the mechanisms behind decellularization techniques and outlines a simplified model for a replacement vascular unit. The current state-of-the-art method used to create decellularized vessel segments is identified. Also, perspectives on future directions to engineer small- (inner diameter >1 mm and <6 mm) to large-caliber (inner diameter >6 mm) vessel substitutes are presented.
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Affiliation(s)
- Xinyu Wang
- Biomedical Engineering and Healthcare Engineering Innovation Center, Khalifa University, Abu Dhabi, United Arab Emirates
- Department of Immunology and Physiology, College of Medicine and Health Sciences, Khalifa University, Abu Dhabi, United Arab Emirates
| | - Vincent Chan
- Biomedical Engineering and Healthcare Engineering Innovation Center, Khalifa University, Abu Dhabi, United Arab Emirates
| | - Peter R Corridon
- Department of Immunology and Physiology, College of Medicine and Health Sciences, Khalifa University, Abu Dhabi, United Arab Emirates
- Center for Biotechnology, Khalifa University, Abu Dhabi, United Arab Emirates
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Panda S, Hajra S, Mistewicz K, Nowacki B, In-Na P, Krushynska A, Mishra YK, Kim HJ. A focused review on three-dimensional bioprinting technology for artificial organ fabrication. Biomater Sci 2022; 10:5054-5080. [PMID: 35876134 DOI: 10.1039/d2bm00797e] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Three-dimensional (3D) bioprinting technology has attracted a great deal of interest because it can be easily adapted to many industries and research sectors, such as biomedical, manufacturing, education, and engineering. Specifically, 3D bioprinting has provided significant advances in the medical industry, since such technology has led to significant breakthroughs in the synthesis of biomaterials, cells, and accompanying elements to produce composite living tissues. 3D bioprinting technology could lead to the immense capability of replacing damaged or injured tissues or organs with newly dispensed cell biomaterials and functional tissues. Several types of bioprinting technology and different bio-inks can be used to replicate cells and generate supporting units as complex 3D living tissues. Bioprinting techniques have undergone great advancements in the field of regenerative medicine to provide 3D printed models for numerous artificial organs and transplantable tissues. This review paper aims to provide an overview of 3D-bioprinting technologies by elucidating the current advancements, recent progress, opportunities, and applications in this field. It highlights the most recent advancements in 3D-bioprinting technology, particularly in the area of artificial organ development and cancer research. Additionally, the paper speculates on the future progress in 3D-bioprinting as a versatile foundation for several biomedical applications.
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Affiliation(s)
- Swati Panda
- Department of Robotics and Mechatronics Engineering, Daegu Gyeongbuk Institute of Science and Technology, Daegu-42988, South Korea.
| | - Sugato Hajra
- Department of Robotics and Mechatronics Engineering, Daegu Gyeongbuk Institute of Science and Technology, Daegu-42988, South Korea.
| | - Krystian Mistewicz
- Institute of Physics - Center for Science and Education, Silesian University of Technology, Krasińskiego 8, Katowice, Poland
| | - Bartłomiej Nowacki
- Faculty of Materials Engineering, Silesian University of Technology, Krasińskiego 8, Katowice, Poland
| | - Pichaya In-Na
- Department of Chemical Technology, Faculty of Science, Chulalongkorn University, 254 Phyathai Road, Wangmai, Pathumwan, Bangkok-10330, Thailand
| | - Anastasiia Krushynska
- Engineering and Technology Institute Groningen (ENTEG), Faculty of Science and Engineering, University of Groningen, Nijenborgh 4, Groningen, 9747 AG, Netherlands
| | - Yogendra Kumar Mishra
- Mads Clausen Institute, NanoSYD, University of Southern Denmark, Alsion 2, 6400 Sønderborg, Denmark
| | - Hoe Joon Kim
- Department of Robotics and Mechatronics Engineering, Daegu Gyeongbuk Institute of Science and Technology, Daegu-42988, South Korea. .,Robotics and Mechatronics Research Center, Daegu Gyeongbuk Institute of Science and Technology, Daegu-42988, South Korea
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Sembiring YE, Ledyastatin RA, Nurrahmah A, Sulistyaningsih NK, Sinatra JAR, Puruhito I, Suroto H. Comparative Assessment of Various Concentration and Exposure Time of Sodium Dodecyl Sulfate as Decellularization Agents for Small-Vessels Vascular Tissue Engineering. Open Access Maced J Med Sci 2022. [DOI: 10.3889/oamjms.2022.9396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
BACKGROUND: Finding the optimum vascular grafts (VG) to replace damaged blood arteries in cardiac surgery is still a work in progress. To be employed, a tissue-engineered VG (TEVG) must have the appropriate biological and mechanical qualities. Decellularized arteries may be a better TEVG than synthetic grafts because of their natural three-dimensional architecture.
AIM: The goal of this study was to compare different concentrations and times of sodium dodecyl sulfate (SDS) to decellularize tissue to find the best decellularized VG.
METHODS: In all decellularized scaffolds, which are 1% SDS-2 weeks group, hematoxylin and eosin and Masson’s trichrome staining exhibited looser collagen networks and fewer nuclei.
RESULTS: The orientation of collagen fibers was identical to native vascular scaffolds. Collagen I deposition was seen in the immunohistochemistry assay. A tensile strength test revealed that the decellularized scaffold (0.5% SDS for 4 weeks and 0.5% SDS for 2 weeks) had exceeded the native arteries’ maximal strength. In comparison to 1% SDS in 4 weeks treated groups, scanning electron microscopy following decellularization revealed no endothelial cells on the inner side of 1% SDS in 2 weeks group with minimum extracellular matrix damage. The endothelial cells remained marginally visible on the inner side of all 0.5% SDS treated groups. The 3-(4,5-dimethylthiazol-2yl)2,5-diphenyltetrazolium bromide test was used to determine the cytotoxicity of the decellularized scaffolds.
CONCLUSION: This study reveals that exposing a bovine mesenteric artery to 1% SDS for 2 weeks is an excellent procedure for extracting the most acellular VG, potentially serving as a biological scaffold for TEVGs.
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Fegan KL, Green NC, Britton MM, Iqbal AJ, Thomas-Seale LEJ. Design and Simulation of the Biomechanics of Multi-Layered Composite Poly(Vinyl Alcohol) Coronary Artery Grafts. Front Cardiovasc Med 2022; 9:883179. [PMID: 35833186 PMCID: PMC9272978 DOI: 10.3389/fcvm.2022.883179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Accepted: 06/01/2022] [Indexed: 11/25/2022] Open
Abstract
Coronary artery disease is among the primary causes of death worldwide. While synthetic grafts allow replacement of diseased tissue, mismatched mechanical properties between graft and native tissue remains a major cause of graft failure. Multi-layered grafts could overcome these mechanical incompatibilities by mimicking the structural heterogeneity of the artery wall. However, the layer-specific biomechanics of synthetic grafts under physiological conditions and their impact on endothelial function is often overlooked and/or poorly understood. In this study, the transmural biomechanics of four synthetic graft designs were simulated under physiological pressure, relative to the coronary artery wall, using finite element analysis. Using poly(vinyl alcohol) (PVA)/gelatin cryogel as the representative biomaterial, the following conclusions are drawn: (I) the maximum circumferential stress occurs at the luminal surface of both the grafts and the artery; (II) circumferential stress varies discontinuously across the media and adventitia, and is influenced by the stiffness of the adventitia; (III) unlike native tissue, PVA/gelatin does not exhibit strain stiffening below diastolic pressure; and (IV) for both PVA/gelatin and native tissue, the magnitude of stress and strain distribution is heavily dependent on the constitutive models used to model material hyperelasticity. While these results build on the current literature surrounding PVA-based arterial grafts, the proposed method has exciting potential toward the wider design of multi-layer scaffolds. Such finite element analyses could help guide the future validation of multi-layered grafts for the treatment of coronary artery disease.
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Affiliation(s)
- Katie L. Fegan
- Physical Sciences for Health Centre for Doctoral Training, University of Birmingham, Birmingham, United Kingdom
- Department of Mechanical Engineering, University of Birmingham, Birmingham, United Kingdom
| | - Naomi C. Green
- Department of Mechanical Engineering, University of Birmingham, Birmingham, United Kingdom
| | - Melanie M. Britton
- School of Chemistry, College of Engineering and Physical Sciences, University of Birmingham, Birmingham, United Kingdom
| | - Asif J. Iqbal
- Institute of Cardiovascular Sciences, University of Birmingham, Birmingham, United Kingdom
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Potential of Biodegradable Synthetic Polymers for Use in Small-diameter Vascular Engineering. Macromol Res 2022. [DOI: 10.1007/s13233-022-0056-2] [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]
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