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Zhao J, Zhang H, Ling Z, An Z, Xiao S, Wang P, Fu Z, Shao J, Sun Y, Fu W. A bilayer bioengineered patch with sequential dual-growth factor release to promote vascularization in bladder reconstruction. Regen Biomater 2024; 11:rbae083. [PMID: 39077683 PMCID: PMC11286312 DOI: 10.1093/rb/rbae083] [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: 02/04/2024] [Revised: 06/15/2024] [Accepted: 06/25/2024] [Indexed: 07/31/2024] Open
Abstract
Bladder tissue engineering holds promise for addressing bladder defects resulting from congenital or acquired bladder diseases. However, inadequate vascularization significantly impacts the survival and function of engineered tissues after transplantation. Herein, a novel bilayer silk fibroin (BSF) scaffold was fabricated with the capability of vascular endothelial growth factor (VEGF) and platelet derived growth factor-BB (PDGF-BB) sequential release. The outer layer of the scaffold was composed of compact SF film with waterproofness to mimic the serosa of the bladder. The inner layer was constructed of porous SF matrix incorporated with SF microspheres (MS) loaded with VEGF and PDGF-BB. We found that the 5% (w/v) MS-incorporated scaffold exhibited a rapid release of VEGF, whereas the 0.2% (w/v) MS-incorporated scaffold demonstrated a slow and sustained release of PDGF-BB. The BSF scaffold exhibited good biocompatibility and promoted endothelial cell migration, tube formation and enhanced endothelial differentiation of adipose derived stem cells (ADSCs) in vitro. The BSF patch was constructed by seeding ADSCs on the BSF scaffold. After in vivo transplantation, not only could the BSF patch facilitate the regeneration of urothelium and smooth muscle, but more importantly, stimulate the regeneration of blood vessels. This study demonstrated that the BSF patch exhibited excellent vascularization capability in bladder reconstruction and offered a viable functional bioengineered patch for future clinical studies.
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Affiliation(s)
- Jian Zhao
- Medical School of PLA, Beijing 100853, China
- Department of Urology, The Third Medical Center, PLA General Hospital, Beijing 100039, China
- Department of Urology, 960th Hospital of PLA, Jinan 250031, China
| | - Haoqian Zhang
- Inner Mongolia Medical University, Hohhot, Inner Mongolia 010050, China
| | - Zhengyun Ling
- Department of Urology, The Third Medical Center, PLA General Hospital, Beijing 100039, China
- School of Medicine, Nankai University, Tianjin 300071, China
| | - Ziyan An
- Medical School of PLA, Beijing 100853, China
- Department of Urology, The Third Medical Center, PLA General Hospital, Beijing 100039, China
| | - Shuwei Xiao
- Department of Urology, Air Force Medical Center, Beijing 100142, China
| | - Pengchao Wang
- Department of Urology, The Third Medical Center, PLA General Hospital, Beijing 100039, China
| | - Zhouyang Fu
- Department of Urology, The Third Medical Center, PLA General Hospital, Beijing 100039, China
| | - Jinpeng Shao
- Medical School of PLA, Beijing 100853, China
- Department of Urology, The Third Medical Center, PLA General Hospital, Beijing 100039, China
| | - Yanfeng Sun
- Department of Pediatrics, The Third Medical Center, PLA General Hospital, Beijing 100039, China
| | - Weijun Fu
- Department of Urology, The Third Medical Center, PLA General Hospital, Beijing 100039, China
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2
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Rosellini E, Giordano C, Guidi L, Cascone MG. Biomimetic Approaches in Scaffold-Based Blood Vessel Tissue Engineering. Biomimetics (Basel) 2024; 9:377. [PMID: 39056818 PMCID: PMC11274842 DOI: 10.3390/biomimetics9070377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Revised: 06/15/2024] [Accepted: 06/19/2024] [Indexed: 07/28/2024] Open
Abstract
Cardiovascular diseases remain a leading cause of mortality globally, with atherosclerosis representing a significant pathological means, often leading to myocardial infarction. Coronary artery bypass surgery, a common procedure used to treat coronary artery disease, presents challenges due to the limited autologous tissue availability or the shortcomings of synthetic grafts. Consequently, there is a growing interest in tissue engineering approaches to develop vascular substitutes. This review offers an updated picture of the state of the art in vascular tissue engineering, emphasising the design of scaffolds and dynamic culture conditions following a biomimetic approach. By emulating native vessel properties and, in particular, by mimicking the three-layer structure of the vascular wall, tissue-engineered grafts can improve long-term patency and clinical outcomes. Furthermore, ongoing research focuses on enhancing biomimicry through innovative scaffold materials, surface functionalisation strategies, and the use of bioreactors mimicking the physiological microenvironment. Through a multidisciplinary lens, this review provides insight into the latest advancements and future directions of vascular tissue engineering, with particular reference to employing biomimicry to create systems capable of reproducing the structure-function relationships present in the arterial wall. Despite the existence of a gap between benchtop innovation and clinical translation, it appears that the biomimetic technologies developed to date demonstrate promising results in preventing vascular occlusion due to blood clotting under laboratory conditions and in preclinical studies. Therefore, a multifaceted biomimetic approach could represent a winning strategy to ensure the translation of vascular tissue engineering into clinical practice.
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Affiliation(s)
- Elisabetta Rosellini
- Department of Civil and Industrial Engineering, University of Pisa, Largo Lucio Lazzarino 1, 56122 Pisa, Italy; (C.G.); (L.G.)
| | | | | | - Maria Grazia Cascone
- Department of Civil and Industrial Engineering, University of Pisa, Largo Lucio Lazzarino 1, 56122 Pisa, Italy; (C.G.); (L.G.)
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3
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Ma F, Huang X, Wang Y. Fabrication of a Triple-Layer Bionic Vascular Scaffold via Hybrid Electrospinning. J Funct Biomater 2024; 15:140. [PMID: 38921514 PMCID: PMC11204414 DOI: 10.3390/jfb15060140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2024] [Revised: 05/13/2024] [Accepted: 05/21/2024] [Indexed: 06/27/2024] Open
Abstract
Tissue engineering aims to develop bionic scaffolds as alternatives to autologous vascular grafts due to their limited availability. This study introduces a novel wet-electrospinning fabrication technique to create small-diameter, uniformly aligned tubular scaffolds. By combining this innovative method with conventional electrospinning, a bionic tri-layer scaffold that mimics the zonal structure of vascular tissues is produced. The inner and outer layers consist of PCL/Gelatin and PCL/PLGA fibers, respectively, while the middle layer is crafted using PCL through Wet Vertical Magnetic Rod Electrospinning (WVMRE). The scaffold's morphology is analyzed using Scanning Electron Microscopy (SEM) to confirm its bionic structure. The mechanical properties, degradation profile, wettability, and biocompatibility of the scaffold are also characterized. To enhance hemocompatibility, the scaffold is crosslinked with heparin. The results demonstrate sufficient mechanical properties, good wettability of the inner layer, proper degradability of the inner and middle layers, and overall good biocompatibility. In conclusion, this study successfully develops a small-diameter tri-layer tubular scaffold that meets the required specifications.
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Affiliation(s)
- Feier Ma
- School of Sports Medicine and Rehabilitation, Beijing Sport University, Beijing 100084, China
- Institute of Orthopaedic & Musculoskeletal Science, Division of Surgery and Interventional Science, University College London, The Royal National Orthopaedic Hospital, Stanmore, London HA7 4LP, UK
| | - Xiaojing Huang
- School of Sports Medicine and Rehabilitation, Beijing Sport University, Beijing 100084, China
| | - Yan Wang
- School of Sports Medicine and Rehabilitation, Beijing Sport University, Beijing 100084, China
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4
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Almasi-Jaf A, Shamloo A, Shaygani H, Seifi S. Fabrication of heparinized bi-layered vascular graft with PCL/PU/gelatin co-electrospun and chitosan/silk fibroin/gelatin freeze-dried hydrogel for improved endothelialization and enhanced mechanical properties. Int J Biol Macromol 2023; 253:126807. [PMID: 37689302 DOI: 10.1016/j.ijbiomac.2023.126807] [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: 06/24/2023] [Revised: 09/05/2023] [Accepted: 09/06/2023] [Indexed: 09/11/2023]
Abstract
Fabricating a biocompatible small-diameter vascular graft (< 6 mm) with mechanical properties similar to the natural vein and adding good anti-thrombogenic, endothelialization, and hyperplasia properties remains a challenge. To this end, we fabricated a heparinized bilayer graft to address this problem. The proposed bilayer sample consisted of a heparinized polycaprolactone (PCL), polyurethane (PU), and gelatin (G) co-electrospun inner layer and chitosan, gelatin, and silk fibroin freeze-dried hydrogel crosslinked with 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide (EDC) and N-hydroxysuccinimide (NHS) outer layer. The samples exhibited great ultimate stress, Young's module, and suture retention of 4.16±0.25MPa, 8.24±2.59MPa and 4.83±0.31N, respectively. The heparin release assay indicated a sustained release profile of around 70% after 4weeks, which can be attributed to the excellent control via emulsion. Furthermore, the heparinized samples demonstrated good anti-thrombogenic properties investigated in the platelet adhesion assay. For the outer layer, the hydrogel crosslinked with non-toxic materials was prepared through the freeze-drying method to achieve high porosity (64.63%), suitable for smooth muscle cell activity. Moreover, inner and outer layers showed high cell viability toward endothelial (78.96%) and smooth muscle cells (57.77%), respectively. Overall, the proposed heparinized graft exhibited excellent potential for vascular graft regeneration.
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Affiliation(s)
- Aram Almasi-Jaf
- School of Mechanical Engineering, Sharif University of Technology, Tehran, Iran; Stem Cell and Regenerative Medicine Institute, Sharif University of Technology, Tehran 11155-9161, Iran
| | - Amir Shamloo
- School of Mechanical Engineering, Sharif University of Technology, Tehran, Iran; Stem Cell and Regenerative Medicine Institute, Sharif University of Technology, Tehran 11155-9161, Iran.
| | - Hossein Shaygani
- School of Mechanical Engineering, Sharif University of Technology, Tehran, Iran; Stem Cell and Regenerative Medicine Institute, Sharif University of Technology, Tehran 11155-9161, Iran
| | - Saeed Seifi
- School of Mechanical Engineering, Sharif University of Technology, Tehran, Iran; Stem Cell and Regenerative Medicine Institute, Sharif University of Technology, Tehran 11155-9161, Iran
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5
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Di Francesco D, Pigliafreddo A, Casarella S, Di Nunno L, Mantovani D, Boccafoschi F. Biological Materials for Tissue-Engineered Vascular Grafts: Overview of Recent Advancements. Biomolecules 2023; 13:1389. [PMID: 37759789 PMCID: PMC10526356 DOI: 10.3390/biom13091389] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 09/11/2023] [Accepted: 09/12/2023] [Indexed: 09/29/2023] Open
Abstract
The clinical demand for tissue-engineered vascular grafts is still rising, and there are many challenges that need to be overcome, in particular, to obtain functional small-diameter grafts. The many advances made in cell culture, biomaterials, manufacturing techniques, and tissue engineering methods have led to various promising solutions for vascular graft production, with available options able to recapitulate both biological and mechanical properties of native blood vessels. Due to the rising interest in materials with bioactive potentials, materials from natural sources have also recently gained more attention for vascular tissue engineering, and new strategies have been developed to solve the disadvantages related to their use. In this review, the progress made in tissue-engineered vascular graft production is discussed. We highlight, in particular, the use of natural materials as scaffolds for vascular tissue engineering.
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Affiliation(s)
- Dalila Di Francesco
- Department of Health Sciences, University of Piemonte Orientale “A. Avogadro”, 28100 Novara, Italy; (D.D.F.); (S.C.); (L.D.N.)
- Laboratory for Biomaterials and Bioengineering, CRC-I, Department of Min-Met-Materials Engineering, University Hospital Research Center, Regenerative Medicine, Laval University, Quebec City, QC G1V 0A6, Canada;
| | - Alexa Pigliafreddo
- Department of Health Sciences, University of Piemonte Orientale “A. Avogadro”, 28100 Novara, Italy; (D.D.F.); (S.C.); (L.D.N.)
| | - Simona Casarella
- Department of Health Sciences, University of Piemonte Orientale “A. Avogadro”, 28100 Novara, Italy; (D.D.F.); (S.C.); (L.D.N.)
| | - Luca Di Nunno
- Department of Health Sciences, University of Piemonte Orientale “A. Avogadro”, 28100 Novara, Italy; (D.D.F.); (S.C.); (L.D.N.)
| | - Diego Mantovani
- Laboratory for Biomaterials and Bioengineering, CRC-I, Department of Min-Met-Materials Engineering, University Hospital Research Center, Regenerative Medicine, Laval University, Quebec City, QC G1V 0A6, Canada;
| | - Francesca Boccafoschi
- Department of Health Sciences, University of Piemonte Orientale “A. Avogadro”, 28100 Novara, Italy; (D.D.F.); (S.C.); (L.D.N.)
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6
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Pan C, Xu J, Gao Q, Li W, Sun T, Lu J, Shi Q, Han Y, Gao G, Li J. Sequentially suspended 3D bioprinting of multiple-layered vascular models with tunable geometries for in vitromodeling of arterial disorders initiation. Biofabrication 2023; 15:045017. [PMID: 37579751 DOI: 10.1088/1758-5090/aceffa] [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: 05/15/2023] [Accepted: 08/14/2023] [Indexed: 08/16/2023]
Abstract
As the main precursor of arterial disorders, endothelial dysfunction preferentially occurs in regions of arteries prone to generating turbulent flow, particularly in branched regions of vasculatures. Although various diseased models have been engineered to investigate arterial pathology, producing a multiple-layered vascular model with branched geometries that can recapitulate the critical physiological environments of human arteries, such as intercellular communications and local turbulent flows, remains challenging. This study develops a sequentially suspended three-dimensional bioprinting (SSB) strategy and a visible-light-curable decellularized extracellular matrix bioink (abbreviated as 'VCD bioink') to construct a biomimetic human arterial model with tunable geometries. The engineered multiple-layered arterial models with compartmentalized vascular cells can exhibit physiological functionality and pathological performance under defined physiological flows specified by computational fluid dynamics simulation. Using different configurations of the vascular models, we investigated the independent and synergetic effects of cellular crosstalk and abnormal hemodynamics on the initiation of endothelial dysfunction, a hallmark event of arterial disorder. The results suggest that the arterial model constructed using the SSB strategy and VCD bioinks has promise in establishing diagnostic/analytic platforms for understanding the pathophysiology of human arterial disorders and relevant abnormalities, such as atherosclerosis, aneurysms, and ischemic diseases.
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Affiliation(s)
- Chen Pan
- School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, People's Republic of China
- School of Medical Technology, Beijing Institute of Technology, Beijing 100081, People's Republic of China
| | - Jingwen Xu
- School of Biomedical Sciences and Engineering, South China University of Technology, Guangzhou International Campus, Guangzhou 511442, People's Republic of China
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou 510006, People's Republic of China
| | - Qiqi Gao
- School of Medical Technology, Beijing Institute of Technology, Beijing 100081, People's Republic of China
| | - Wei Li
- School of Medical Technology, Beijing Institute of Technology, Beijing 100081, People's Republic of China
| | - Tao Sun
- School of Mechatronical Engineering, Beijing Institute of Technology, Beijing 100081, People's Republic of China
- Key Laboratory of Biomimetic Robots and Systems (Beijing Institute of Technology), Ministry of Education, Beijing 100081, People's Republic of China
| | - Jiping Lu
- School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, People's Republic of China
| | - Qing Shi
- School of Mechatronical Engineering, Beijing Institute of Technology, Beijing 100081, People's Republic of China
- Key Laboratory of Biomimetic Robots and Systems (Beijing Institute of Technology), Ministry of Education, Beijing 100081, People's Republic of China
| | - Yafeng Han
- School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, People's Republic of China
| | - Ge Gao
- School of Medical Technology, Beijing Institute of Technology, Beijing 100081, People's Republic of China
| | - Jinhua Li
- School of Medical Technology, Beijing Institute of Technology, Beijing 100081, People's Republic of China
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7
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Xing J, Zhang M, Liu X, Wang C, Xu N, Xing D. Multi-material electrospinning: from methods to biomedical applications. Mater Today Bio 2023; 21:100710. [PMID: 37545561 PMCID: PMC10401296 DOI: 10.1016/j.mtbio.2023.100710] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 06/03/2023] [Accepted: 06/16/2023] [Indexed: 08/08/2023] Open
Abstract
Electrospinning as a versatile, simple, and cost-effective method to engineer a variety of micro or nanofibrous materials, has contributed to significant developments in the biomedical field. However, the traditional electrospinning of single material only can produce homogeneous fibrous assemblies with limited functional properties, which oftentimes fails to meet the ever-increasing requirements of biomedical applications. Thus, multi-material electrospinning referring to engineering two or more kinds of materials, has been recently developed to enable the fabrication of diversified complex fibrous structures with advanced performance for greatly promoting biomedical development. This review firstly gives an overview of multi-material electrospinning modalities, with a highlight on their features and accessibility for constructing different complex fibrous structures. A perspective of how multi-material electrospinning opens up new opportunities for specific biomedical applications, i.e., tissue engineering and drug delivery, is also offered.
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Affiliation(s)
- Jiyao Xing
- The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, 266071, China
- Qingdao Cancer Institute, Qingdao, 266071, China
| | - Miao Zhang
- The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, 266071, China
- Qingdao Cancer Institute, Qingdao, 266071, China
| | - Xinlin Liu
- The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, 266071, China
- Qingdao Cancer Institute, Qingdao, 266071, China
| | - Chao Wang
- The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, 266071, China
- Qingdao Cancer Institute, Qingdao, 266071, China
| | - Nannan Xu
- School of Computer Science and Technology, Ocean University of China, Qingdao, 266000, China
| | - Dongming Xing
- The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, 266071, China
- Qingdao Cancer Institute, Qingdao, 266071, China
- School of Life Sciences, Tsinghua University, Beijing, 100084, China
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8
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Shi J, Teng Y, Li D, He J, Midgley AC, Guo X, Wang X, Yang X, Wang S, Feng Y, Lv Q, Hou S. Biomimetic tri-layered small-diameter vascular grafts with decellularized extracellular matrix promoting vascular regeneration and inhibiting thrombosis with the salidroside. Mater Today Bio 2023; 21:100709. [PMID: 37455822 PMCID: PMC10339197 DOI: 10.1016/j.mtbio.2023.100709] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 05/20/2023] [Accepted: 06/16/2023] [Indexed: 07/18/2023] Open
Abstract
Small-diameter vascular grafts (SDVGs) are urgently required for clinical applications. Constructing vascular grafts mimicking the defining features of native arteries is a promising strategy. Here, we constructed a tri-layered vascular graft with a native artery decellularized extracellular matrix (dECM) mimicking the component of arteries. The porcine thoracic aorta was decellularized and milled into dECM powders from the differential layers. The intima and media dECM powders were blended with poly (L-lactide-co-caprolactone) (PLCL) as the inner and middle layers of electrospun vascular grafts, respectively. Pure PLCL was electrospun as a strengthening sheath for the outer layer. Salidroside was loaded into the inner layer of vascular grafts to inhibit thrombus formation. In vitro studies demonstrated that dECM provided a bioactive milieu for human umbilical vein endothelial cell (HUVEC) extension adhesion, proliferation, migration, and tube-forming. The in vivo studies showed that the addition of dECM could promote endothelialization, smooth muscle regeneration, and extracellular matrix deposition. The salidroside could inhibit thrombosis. Our study mimicked the component of the native artery and combined it with the advantages of synthetic polymer and dECM which provided a promising strategy for the design and construction of SDVGs.
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Affiliation(s)
- Jie Shi
- Wenzhou Safety (Emergency) Institute of Tianjin University, Wenzhou, 325026, China
- Institute of Disaster and Emergency Medicine, Tianjin University, Tianjin, 300072, China
- Key Laboratory for Disaster Medicine Technology, Tianjin, 300072, China
| | - Yanjiao Teng
- Wenzhou Safety (Emergency) Institute of Tianjin University, Wenzhou, 325026, China
- Institute of Disaster and Emergency Medicine, Tianjin University, Tianjin, 300072, China
- Key Laboratory for Disaster Medicine Technology, Tianjin, 300072, China
| | - Duo Li
- Wenzhou Safety (Emergency) Institute of Tianjin University, Wenzhou, 325026, China
- Institute of Disaster and Emergency Medicine, Tianjin University, Tianjin, 300072, China
- Key Laboratory for Disaster Medicine Technology, Tianjin, 300072, China
| | - Ju He
- Vascular Surgery, Tianjin First Central Hospital, Tianjin, 300192, China
| | - Adam C. Midgley
- Key Laboratory of Bioactive Materials for the Ministry of Education, College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Xiaoqin Guo
- Wenzhou Safety (Emergency) Institute of Tianjin University, Wenzhou, 325026, China
- Institute of Disaster and Emergency Medicine, Tianjin University, Tianjin, 300072, China
- Key Laboratory for Disaster Medicine Technology, Tianjin, 300072, China
| | - Xiudan Wang
- Wenzhou Safety (Emergency) Institute of Tianjin University, Wenzhou, 325026, China
- Institute of Disaster and Emergency Medicine, Tianjin University, Tianjin, 300072, China
- Key Laboratory for Disaster Medicine Technology, Tianjin, 300072, China
| | - Xinran Yang
- Wenzhou Safety (Emergency) Institute of Tianjin University, Wenzhou, 325026, China
- Institute of Disaster and Emergency Medicine, Tianjin University, Tianjin, 300072, China
- Key Laboratory for Disaster Medicine Technology, Tianjin, 300072, China
| | - Shufang Wang
- Key Laboratory of Bioactive Materials for the Ministry of Education, College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Yakai Feng
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China
- Frontiers Science Center for Synthetic Biology, Tianjin University, 30072, China
- Key Laboratory of Systems Bioengineering (MOE), Tianjin University, 30072, China
| | - Qi Lv
- Wenzhou Safety (Emergency) Institute of Tianjin University, Wenzhou, 325026, China
- Institute of Disaster and Emergency Medicine, Tianjin University, Tianjin, 300072, China
- Key Laboratory for Disaster Medicine Technology, Tianjin, 300072, China
| | - Shike Hou
- Wenzhou Safety (Emergency) Institute of Tianjin University, Wenzhou, 325026, China
- Institute of Disaster and Emergency Medicine, Tianjin University, Tianjin, 300072, China
- Key Laboratory for Disaster Medicine Technology, Tianjin, 300072, China
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Wancura M, Nkansah A, Chwatko M, Robinson A, Fairley A, Cosgriff-Hernandez E. Interpenetrating network design of bioactive hydrogel coatings with enhanced damage resistance. J Mater Chem B 2023; 11:5416-5428. [PMID: 36825927 PMCID: PMC10682960 DOI: 10.1039/d2tb02825e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Accepted: 02/20/2023] [Indexed: 02/22/2023]
Abstract
Bioactive hydrogel coatings offer a promising route to introduce sustained thromboresistance to cardiovascular devices without compromising bulk mechanical properties. Poly(ethylene glycol)-based hydrogels provide antifouling properties to limit acute thromobosis and incorporation of adhesive ligands can be used to promote endothelialization. However, conventional PEG-based hydrogels at stiffnesses that promote cell attachment can be brittle and prone to damage in a surgical setting, limiting their utility in clinical applications. In this work, we developed a durable hydrogel coating using interpenetrating networks of polyether urethane diacrylamide (PEUDAm) and poly(N-acryloyl glycinamide) (pNAGA). First, diffusion-mediated redox initiation of PEUDAm was used to coat electrospun polyurethane fiber meshes with coating thickness controlled by the immersion time. The second network of pNAGA was then introduced to enhance damage resistance of the hydrogel coating. The durability, thromboresistance, and bioactivity of the resulting multilayer grafts were then assessed. The IPN hydrogel coatings displayed resistance to surgically-associated damage mechanisms and retained the anti-fouling nature of PEG-based hydrogels as indicated by reduced protein adsorption and platelet attachment. Moreover, incorporation of functionalized collagen into the IPN hydrogel coating conferred bioactivity that supported endothelial cell adhesion. Overall, this conformable and durable hydrogel coating provides an improved approach for cardiovascular device fabrication with targeted biological activity.
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Affiliation(s)
- Megan Wancura
- Department of Chemistry, The University of Texas at Austin, Austin, TX 78712, USA
| | - Abbey Nkansah
- Department of Biomedical Engineering, The University of Texas at Austin, Austin, TX 78712, USA.
| | - Malgorzata Chwatko
- Department of Biomedical Engineering, The University of Texas at Austin, Austin, TX 78712, USA.
| | - Andrew Robinson
- Department of Biomedical Engineering, The University of Texas at Austin, Austin, TX 78712, USA.
| | - Ashauntee Fairley
- Department of Biomedical Engineering, The University of Texas at Austin, Austin, TX 78712, USA.
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Pien N, Bray F, Gheysens T, Tytgat L, Rolando C, Mantovani D, Dubruel P, Vlierberghe SV. Proteomics as a tool to gain next level insights into photo-crosslinkable biopolymer modifications. Bioact Mater 2022; 17:204-220. [PMID: 35386456 PMCID: PMC8965084 DOI: 10.1016/j.bioactmat.2022.01.023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Revised: 01/04/2022] [Accepted: 01/16/2022] [Indexed: 12/25/2022] Open
Affiliation(s)
- Nele Pien
- Ghent University, Polymer Chemistry and Biomaterials Research Group, Centre of Macromolecular Chemistry (CMaC), Krijgslaan 281 S4bis, 9000 Gent, Belgium
- Laval University, Laboratory for Biomaterials and Bioengineering, CRC-I, Pavillon Pouliot, Québec G1V 0A6, Canada
| | - Fabrice Bray
- Univ. Lille, CNRS, USR 3290, MSAP, Miniaturisation pour la Synthèse l'Analyse et la Protéomique, F-59 000, Lille, France
| | - Tom Gheysens
- Ghent University, Polymer Chemistry and Biomaterials Research Group, Centre of Macromolecular Chemistry (CMaC), Krijgslaan 281 S4bis, 9000 Gent, Belgium
| | - Liesbeth Tytgat
- Ghent University, Polymer Chemistry and Biomaterials Research Group, Centre of Macromolecular Chemistry (CMaC), Krijgslaan 281 S4bis, 9000 Gent, Belgium
| | - Christian Rolando
- Univ. Lille, CNRS, USR 3290, MSAP, Miniaturisation pour la Synthèse l'Analyse et la Protéomique, F-59 000, Lille, France
| | - Diego Mantovani
- Laval University, Laboratory for Biomaterials and Bioengineering, CRC-I, Pavillon Pouliot, Québec G1V 0A6, Canada
| | - Peter Dubruel
- Ghent University, Polymer Chemistry and Biomaterials Research Group, Centre of Macromolecular Chemistry (CMaC), Krijgslaan 281 S4bis, 9000 Gent, Belgium
- Corresponding author.
| | - Sandra Van Vlierberghe
- Ghent University, Polymer Chemistry and Biomaterials Research Group, Centre of Macromolecular Chemistry (CMaC), Krijgslaan 281 S4bis, 9000 Gent, Belgium
- Corresponding author.
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Jia W, Liu L, Li M, Zhou Y, Zhou H, Weng H, Gu G, Xiao M, Chen Z. Construction of enzyme-laden vascular scaffolds based on hyaluronic acid oligosaccharides-modified collagen nanofibers for antithrombosis and in-situ endothelialization of tissue-engineered blood vessels. Acta Biomater 2022; 153:287-298. [PMID: 36155095 DOI: 10.1016/j.actbio.2022.09.041] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Revised: 09/14/2022] [Accepted: 09/15/2022] [Indexed: 11/29/2022]
Abstract
The current use of synthetic grafts often yields low patency in the reconstruction of small-diameter blood vessels owing to the deposition of thrombi and imperfect coverage of the endothelium on the graft lumen. Therefore, the design of vascular scaffolds with antithrombotic performance and endothelialization is greatly required. Herein, we developed an enzyme-laden scaffold based on hyaluronic acid oligosaccharides-modified collagen nanofibers (labeled HA-COL) to improve the anti-platelet capacity and endothelialization of vascular grafts. In this study, HA-COL nanofibers not only encouraged the endothelialization of vascular scaffolds, but acted as an antiplatelet enzyme-laden platform. Apyrase (Apy) and 5'-nucleotidase (5'-NT) were covalently grafted onto the nanofibers, which in turn converted the platelet-sensitive substance: adenosine diphosphate (ADP) into adenosine monophosphate (AMP) and adenosine, thereby, improving the antithrombotic performance of the scaffolds. Notably, the catalytic end-product: adenosine would work in coordination with HA-COL to synergistically enhance the endothelialization of the vascular scaffolds. The results demonstrated that the enzyme-laden scaffolds maintained catalytic performance, reduced platelet adhesion and aggregation, and guaranteed higher patency after 1-month in situ transplantation. Moreover, these scaffolds showed optimal cytocompatibility, tissue compatibility, scaffold biodegradability and tissue regenerative capability during in vivo implantation. Overall, these engineered vascular scaffolds demonstrated their capacity for endothelialization and antithrombotic performance, suggesting their potential for small-diameter vascular tissue engineering applications. STATEMENT OF SIGNIFICANCE: Considering the critical problems in small-diameter vascular reconstruction, the enzyme-laden vascular scaffolds were prepared for improving in-situ endothelialization and antithrombotic performances of artificial blood vessels. The electrospun HA-COL nanofibers were used as the main matrix materials, which provided favorable structural templates for the regeneration of vasculature and functioned as a platform for the loading of enzymes. The enzyme-laden scaffolds with the biomimetic cascading reaction would convert ADP into adenosine, thereby, decreasing the sensitivity of platelets and improving the antithrombotic performance of tissue-engineered blood vessels (TEBVs). The nanofibrous scaffolds exhibited optimal cytocompatibility, tissue compatibility and regenerative capability, working together with catalytic products of dual-enzyme reaction that would synergistically contribute to TEBVs endothelialization. This study provides a new method for the improvement of in-situ endothelialization of small-diameter TEBVs while qualified with antithrombotic performance.
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Affiliation(s)
- Weibin Jia
- National Glycoengineering Research Center and Shandong Provincial Key Laboratory of Carbohydrate Chemistry and Glycobiology, NMPA Key Laboratory for Quality Research and Evaluation of Carbohydrate-based Medicine, Shandong University, Qingdao, 266237, China; Hong Kong Centre for Cerebro-Cardiovascular Health Engineering, Hong Kong 999077, China
| | - Liling Liu
- National Glycoengineering Research Center and Shandong Provincial Key Laboratory of Carbohydrate Chemistry and Glycobiology, NMPA Key Laboratory for Quality Research and Evaluation of Carbohydrate-based Medicine, Shandong University, Qingdao, 266237, China
| | - Min Li
- National Glycoengineering Research Center and Shandong Provincial Key Laboratory of Carbohydrate Chemistry and Glycobiology, NMPA Key Laboratory for Quality Research and Evaluation of Carbohydrate-based Medicine, Shandong University, Qingdao, 266237, China
| | - Yuanmeng Zhou
- National Glycoengineering Research Center and Shandong Provincial Key Laboratory of Carbohydrate Chemistry and Glycobiology, NMPA Key Laboratory for Quality Research and Evaluation of Carbohydrate-based Medicine, Shandong University, Qingdao, 266237, China
| | - Hang Zhou
- National Glycoengineering Research Center and Shandong Provincial Key Laboratory of Carbohydrate Chemistry and Glycobiology, NMPA Key Laboratory for Quality Research and Evaluation of Carbohydrate-based Medicine, Shandong University, Qingdao, 266237, China
| | - Hongjuan Weng
- National Glycoengineering Research Center and Shandong Provincial Key Laboratory of Carbohydrate Chemistry and Glycobiology, NMPA Key Laboratory for Quality Research and Evaluation of Carbohydrate-based Medicine, Shandong University, Qingdao, 266237, China
| | - Guofeng Gu
- National Glycoengineering Research Center and Shandong Provincial Key Laboratory of Carbohydrate Chemistry and Glycobiology, NMPA Key Laboratory for Quality Research and Evaluation of Carbohydrate-based Medicine, Shandong University, Qingdao, 266237, China
| | - Min Xiao
- National Glycoengineering Research Center and Shandong Provincial Key Laboratory of Carbohydrate Chemistry and Glycobiology, NMPA Key Laboratory for Quality Research and Evaluation of Carbohydrate-based Medicine, Shandong University, Qingdao, 266237, China
| | - Zonggang Chen
- National Glycoengineering Research Center and Shandong Provincial Key Laboratory of Carbohydrate Chemistry and Glycobiology, NMPA Key Laboratory for Quality Research and Evaluation of Carbohydrate-based Medicine, Shandong University, Qingdao, 266237, China.
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12
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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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13
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Hou J, Zhang X, Wu Y, Jie J, Wang Z, Chen GQ, Sun J, Wu LP. Amphiphilic and fatigue-resistant organohydrogels for small-diameter vascular grafts. SCIENCE ADVANCES 2022; 8:eabn5360. [PMID: 35905180 PMCID: PMC9337766 DOI: 10.1126/sciadv.abn5360] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Accepted: 06/15/2022] [Indexed: 05/27/2023]
Abstract
Hydrogels are used in vascular tissue engineering because of their good biocompatibility. However, most natural hydrogels exhibit high swelling ratio, poor mechanical stability, and low durability, which are key limitations for wider applications. Amphiphilic and fatigue-resistant organohydrogels were fabricated here via the click chemical reaction of unsaturated functional microbial polyhydroxyalkanoates and polyethylene glycol diacrylate and a combination of two-dimensional material graphdiyne. These organohydrogels were maintained stable in body fluids over time, and their tensile moduli remained unchanged after more than 2000 cycles of cyclic stretching. The tubular scaffolds presented good biocompatibility and perfusion in vitro. After transplantation in vivo, the vascular grafts exhibited obvious cell infiltration and tissue regeneration, having a higher patency rate than the control group in 3 months. This fabrication method provides a strategy of improving and promoting the application of organohydrogels as implant materials for small-diameter vascular graft.
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Affiliation(s)
- Jinfei Hou
- Department of Plastic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Xu Zhang
- Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
- Key Laboratory of Industrial Biocatalysis, Ministry of Education, Tsinghua University, Beijing 100084, China
- Center of Synthetic and Systems Biology, School of Life Sciences, Tsinghua-Peking Center for Life Sciences, Tsinghua University, Beijing 100084, China
| | - Yuqiong Wu
- Center for Chemical Biology and Drug Discovery, Guangzhou Institute of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, People’s Republic of China
| | - Junjin Jie
- Department of Plastic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Zhenxing Wang
- Department of Plastic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Guo-Qiang Chen
- Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
- Key Laboratory of Industrial Biocatalysis, Ministry of Education, Tsinghua University, Beijing 100084, China
- Center of Synthetic and Systems Biology, School of Life Sciences, Tsinghua-Peking Center for Life Sciences, Tsinghua University, Beijing 100084, China
| | - Jiaming Sun
- Department of Plastic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Lin-Ping Wu
- Center for Chemical Biology and Drug Discovery, Guangzhou Institute of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, People’s Republic of China
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14
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Mao H, Zhang Y, Wang L, Zhou A, Zhang S, Cao J, Xia H. Cyclopeptide-β-cyclodextrin/γ-glycerol methoxytrimethoxysilane film for potential vascular tissue engineering scaffolds. JOURNAL OF BIOMATERIALS SCIENCE. POLYMER EDITION 2022; 33:1213-1230. [PMID: 35240948 DOI: 10.1080/09205063.2022.2046985] [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: 10/15/2021] [Revised: 02/20/2022] [Accepted: 02/23/2022] [Indexed: 06/14/2023]
Abstract
The mortality rate of cardiovascular diseases is the highest among all mortality rates worldwide. Allotransplantation and autotransplantation are limited by rejection reaction and availability. Tissue engineering provides new avenues for the treatment of cardiovascular diseases. However, the current small-diameter (<6 mm) vascular tissue-engineered scaffolds have many challenges, including thrombosis, stenosis, and infection. Small-diameter vascular scaffolds have structural and compositional requirements such as biocompatibility, porosity, and appropriate phase separation. We used liquid-crystal cyclopeptide(CYC)to modify β-cyclodextrin and mixed it with γ-glycerol methoxytrimethoxysilane (GPTMS) to prepare CYC-β-cyclodextrin (βCD)/GPTMS film by sol-gel. The chemical structure of CYC-βCD was confirmed by Fourier transform infrared spectroscopy and 1H-nuclear magnetic resonance. The chemical characterization of CYC-βCD/GPTMS film was performed by differential scanning calorimetry, X-ray diffraction, and small-angle X-ray scattering. The surface morphology and phase separation microstructure of the film were determined by scanning electron microscopy and atomic force microscopy, and the image of polarizing microscopy showed the liquid-crystal structure of the film. Cell culture experiments showed that CYC-βCD/GPTMS film had good cytocompatibility and induced growth and proliferation of cells. These results indicated the potential applications of CYC-βCD/GPTMS film in tissue engineering scaffolds.
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Affiliation(s)
- Heyi Mao
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, Henan, P.R. China
| | - Yidan Zhang
- Department of Human Anatomy, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, Henan, P.R. China
| | - Lei Wang
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, Henan, P.R. China
| | - Anduo Zhou
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, Henan, P.R. China
| | - Shanfeng Zhang
- School of Basic Medical Science, Zhengzhou University, Zhengzhou, Henan, P.R. China
| | | | - Huang Xia
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, Henan, P.R. China
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15
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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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16
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Zhang T, Nie M, Li Y. Current Advances and Future Perspectives of Advanced Polymer Processing for Bone and Tissue Engineering: Morphological Control and Applications. Front Bioeng Biotechnol 2022; 10:895766. [PMID: 35694231 PMCID: PMC9178098 DOI: 10.3389/fbioe.2022.895766] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Accepted: 05/11/2022] [Indexed: 01/13/2023] Open
Abstract
Advanced polymer processing has received extensive attention due to its unique control of complex force fields and customizability, and has been widely applied in various fields, especially in preparation of functional devices for bioengineering and biotechnology. This review aims to provide an overview of various advanced polymer processing techniques including rotation extrusion, electrospinning, micro injection molding, 3D printing and their recent progresses in the field of cell proliferation, bone repair, and artificial blood vessels. This review dose not only attempts to provide a comprehensive understanding of advanced polymer processing, but also aims to guide for design and fabrication of next-generation device for biomedical engineering.
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17
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Terzopoulou Z, Zamboulis A, Koumentakou I, Michailidou G, Noordam MJ, Bikiaris DN. Biocompatible Synthetic Polymers for Tissue Engineering Purposes. Biomacromolecules 2022; 23:1841-1863. [PMID: 35438479 DOI: 10.1021/acs.biomac.2c00047] [Citation(s) in RCA: 46] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Synthetic polymers have been an integral part of modern society since the early 1960s. Besides their most well-known applications to the public, such as packaging, construction, textiles and electronics, synthetic polymers have also revolutionized the field of medicine. Starting with the first plastic syringe developed in 1955 to the complex polymeric materials used in the regeneration of tissues, their contributions have never been more prominent. Decades of research on polymeric materials, stem cells, and three-dimensional printing contributed to the rapid progress of tissue engineering and regenerative medicine that envisages the potential future of organ transplantations. This perspective discusses the role of synthetic polymers in tissue engineering, their design and properties in relation to each type of application. Additionally, selected recent achievements of tissue engineering using synthetic polymers are outlined to provide insight into how they will contribute to the advancement of the field in the near future. In this way, we aim to provide a guide that will help scientists with synthetic polymer design and selection for different tissue engineering applications.
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Affiliation(s)
- Zoi Terzopoulou
- Laboratory of Chemistry and Technology of Polymers and Dyes, Department of Chemistry, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece
| | - Alexandra Zamboulis
- Laboratory of Chemistry and Technology of Polymers and Dyes, Department of Chemistry, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece
| | - Ioanna Koumentakou
- Laboratory of Chemistry and Technology of Polymers and Dyes, Department of Chemistry, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece
| | - Georgia Michailidou
- Laboratory of Chemistry and Technology of Polymers and Dyes, Department of Chemistry, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece
| | - Michiel Jan Noordam
- Laboratory of Chemistry and Technology of Polymers and Dyes, Department of Chemistry, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece
| | - Dimitrios N Bikiaris
- Laboratory of Chemistry and Technology of Polymers and Dyes, Department of Chemistry, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece
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18
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Liu L, Ji X, Mao L, Wang L, Chen K, Shi Z, Ahmed AAQ, Thomas S, Vasilievich RV, Xiao L, Li X, Yang G. Hierarchical-structured bacterial cellulose/potato starch tubes as potential small-diameter vascular grafts. Carbohydr Polym 2022; 281:119034. [DOI: 10.1016/j.carbpol.2021.119034] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 12/16/2021] [Accepted: 12/17/2021] [Indexed: 01/17/2023]
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19
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Xu Y, Jiang X, Niu C, Yang S, Xiao X, Huang Z, Feng L. Preparation and Assessment of Nitric Oxide‐releasing Small‐diameter Collagen‐based Vascular Graft for Vascular Regeneration Application. MACROMOLECULAR MATERIALS AND ENGINEERING 2022. [DOI: 10.1002/mame.202100862] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Yue Xu
- Regenerative Medicine Research Center West China Hospital Sichuan University Chengdu People's Republic of China
| | - Xia Jiang
- Regenerative Medicine Research Center West China Hospital Sichuan University Chengdu People's Republic of China
| | - Chuan Niu
- Regenerative Medicine Research Center West China Hospital Sichuan University Chengdu People's Republic of China
| | - Shaojie Yang
- Regenerative Medicine Research Center West China Hospital Sichuan University Chengdu People's Republic of China
| | - Xiong Xiao
- Regenerative Medicine Research Center West China Hospital Sichuan University Chengdu People's Republic of China
| | - Ziwei Huang
- Regenerative Medicine Research Center West China Hospital Sichuan University Chengdu People's Republic of China
| | - Li Feng
- Regenerative Medicine Research Center West China Hospital Sichuan University Chengdu People's Republic of China
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20
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Pan C, Gao Q, Kim BS, Han Y, Gao G. The Biofabrication of Diseased Artery In Vitro Models. MICROMACHINES 2022; 13:mi13020326. [PMID: 35208450 PMCID: PMC8874977 DOI: 10.3390/mi13020326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 02/10/2022] [Accepted: 02/17/2022] [Indexed: 11/16/2022]
Abstract
As the leading causes of global death, cardiovascular diseases are generally initiated by artery-related disorders such as atherosclerosis, thrombosis, and aneurysm. Although clinical treatments have been developed to rescue patients suffering from artery-related disorders, the underlying pathologies of these arterial abnormalities are not fully understood. Biofabrication techniques pave the way to constructing diseased artery in vitro models using human vascular cells, biomaterials, and biomolecules, which are capable of recapitulating arterial pathophysiology with superior performance compared with conventional planar cell culture and experimental animal models. This review discusses the critical elements in the arterial microenvironment which are important considerations for recreating biomimetic human arteries with the desired disorders in vitro. Afterward, conventionally biofabricated platforms for the investigation of arterial diseases are summarized, along with their merits and shortcomings, followed by a comprehensive review of advanced biofabrication techniques and the progress of their applications in establishing diseased artery models.
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Affiliation(s)
- Chen Pan
- Institute of Engineering Medicine, Beijing Institute of Technology, Beijing 100081, China; (C.P.); (Q.G.)
- School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China;
| | - Qiqi Gao
- Institute of Engineering Medicine, Beijing Institute of Technology, Beijing 100081, China; (C.P.); (Q.G.)
- School of Medical Technology, Beijing Institute of Technology, Beijing 100081, China
| | - Byoung-Soo Kim
- School of Biomedical Convergence Engineering, Pusan National University, Yangsan 626841, Korea
- Correspondence: (B.-S.K.); (G.G.)
| | - Yafeng Han
- School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China;
| | - Ge Gao
- Institute of Engineering Medicine, Beijing Institute of Technology, Beijing 100081, China; (C.P.); (Q.G.)
- School of Medical Technology, Beijing Institute of Technology, Beijing 100081, China
- Correspondence: (B.-S.K.); (G.G.)
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21
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Fang Z, Xiao Y, Geng X, Jia L, Xing Y, Ye L, Gu Y, Zhang AY, Feng ZG. Fabrication of heparinized small diameter TPU/PCL bi-layered artificial blood vessels and in vivo assessment in a rabbit carotid artery replacement model. BIOMATERIALS ADVANCES 2022; 133:112628. [PMID: 35527159 DOI: 10.1016/j.msec.2021.112628] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 12/12/2021] [Accepted: 12/18/2021] [Indexed: 06/14/2023]
Abstract
Increasingly growing problems in vascular access for long-term hemodialysis lead to a considerable demand for synthetic small diameter vascular prostheses, which usually suffer from some drawbacks and are associated to high failure rates. Incorporating the concept of in situ tissue engineering (TE) into synthetic small diameter blood vessels, for example, thermoplastic poly(ether urethane) (TPU) ones, could provide an alternative approach for vascular access that profits from the advantages of excellent mechanical properties of synthetic polymer materials (early cannulation) and unique biointegration regeneration of autologous neovascular tissues (long-term fistulae). In this study, a kind of heparinized small diameter (d = 2.5 mm) TPU/poly(ε-caprolactone) (TPU/PCL-Hep) bi-layered blood vessels was electrospun with an inner layer of PCL and an outer layer of TPU. Afterward, the inner surface heparinization was conducted by coupling H2N-PEG-NH2 to the corroded PCL layer and then heparin to the attached H2N-PEG-NH2 via the EDCI/NHS chemistry. Herein a heparinized PCL inner layer could not only inhibit thrombosis, but also provide sufficient space for the neotissue regeneration via biodegradation with time. Meanwhile, a TPU outer layer could confer the vascular access the good mechanical properties, such as flexibility, viability and fitness of elasticity between the grafts and host blood vessels as evidenced by the adequate mechanical properties, such as compliance (4.43 ± 0.07%/ 100 mmHg), burst pressure (1447 ± 127 mmHg) and suture retention strength (1.26 ± 0.07 N) without blood seepage after implantation. Furthermore, a rabbit carotid aortic replacement model for 5 months was demonstrated 100% animal survival and 86% graft patency. Puncture assay also revealed the puncture resistance and self-sealing (hemostatic time < 2 min). Histological analysis highlighted neotissue regeneration, host cell infiltration and graft remodeling in terms of extracellular matrix turnover. Altogether, these results showed promising aspects of small diameter TPU/PCL-Hep bi-layered grafts for hemodialytic vascular access applications.
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Affiliation(s)
- Zhiping Fang
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Yonghao Xiao
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Xue Geng
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Liujun Jia
- Beijing Key Laboratory of Preclinical Research and Evaluation for Cardiovascular Implant Materials, Fuwai Hospital National Cardiovascular Center, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100037, China
| | - Yuehao Xing
- Department of Vascular Surgery, Xuanwu Hospital and Institute of Vascular Surgery, Capital Medical University, Beijing 100053, China
| | - Lin Ye
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Yongquan Gu
- Department of Vascular Surgery, Xuanwu Hospital and Institute of Vascular Surgery, Capital Medical University, Beijing 100053, China
| | - Ai-Ying Zhang
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Zeng-Guo Feng
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China.
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22
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Wu X, Chen K, Chai Q, Liu S, Feng C, Xu L, Zhang D. Freestanding vascular scaffolds engineered by direct 3D printing with Gt-Alg-MMT bioinks. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2022; 133:112658. [DOI: 10.1016/j.msec.2022.112658] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 12/27/2021] [Accepted: 01/06/2022] [Indexed: 12/15/2022]
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23
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Liu S, Lin Z. Vascular Smooth Muscle Cells Mechanosensitive Regulators and Vascular Remodeling. J Vasc Res 2021; 59:90-113. [PMID: 34937033 DOI: 10.1159/000519845] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Accepted: 09/23/2021] [Indexed: 11/19/2022] Open
Abstract
Blood vessels are subjected to mechanical loads of pressure and flow, inducing smooth muscle circumferential and endothelial shear stresses. The perception and response of vascular tissue and living cells to these stresses and the microenvironment they are exposed to are critical to their function and survival. These mechanical stimuli not only cause morphological changes in cells and vessel walls but also can interfere with biochemical homeostasis, leading to vascular remodeling and dysfunction. However, the mechanisms underlying how these stimuli affect tissue and cellular function, including mechanical stimulation-induced biochemical signaling and mechanical transduction that relies on cytoskeletal integrity, are unclear. This review focuses on signaling pathways that regulate multiple biochemical processes in vascular mesangial smooth muscle cells in response to circumferential stress and are involved in mechanosensitive regulatory molecules in response to mechanotransduction, including ion channels, membrane receptors, integrins, cytoskeletal proteins, nuclear structures, and cascades. Mechanoactivation of these signaling pathways is closely associated with vascular remodeling in physiological or pathophysiological states.
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Affiliation(s)
- Shangmin Liu
- Ji Hua Institute of Biomedical Engineering Technology, Ji Hua Laboratory, Foshan, China, .,Medical Research Center, Guangdong Academy of Medical Sciences, Guangdong General Hospital, Guangzhou, China,
| | - Zhanyi Lin
- Ji Hua Institute of Biomedical Engineering Technology, Ji Hua Laboratory, Foshan, China.,Institute of Geriatric Medicine, Guangdong Academy of Medical Sciences, Guangdong General Hospital, Guangzhou, China
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24
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Łopianiak I, Wojasiński M, Kuźmińska A, Trzaskowska P, Butruk-Raszeja BA. The effect of surface morphology on endothelial and smooth muscle cells growth on blow-spun fibrous scaffolds. J Biol Eng 2021; 15:27. [PMID: 34924005 PMCID: PMC8684665 DOI: 10.1186/s13036-021-00278-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Accepted: 11/14/2021] [Indexed: 11/23/2022] Open
Abstract
This study aimed to analyze the growth of two types of blood vessel building cells: endothelial cells (ECs) and smooth muscle cells (SMCs) on surfaces with different morphology. Two types of materials, differing in morphology, were produced by the solution blow spinning technique. One-layer materials consisted of one fibrous layer with two fibrous surfaces. Bi-layer materials consisted of one fibrous-solid layer and one fibrous layer, resulting in two different surfaces. Additionally, materials with different average fiber diameters (about 200, 500, and 900 nm) were produced for each group. It has been shown that it is possible to obtain structures with a given morphology by changing the selected process parameters (working distance and polymer solution concentration). Both morphology (solid versus fibrous) and average fiber diameter (submicron fibers versus microfibers) of scaffolds influenced the growth of ECs. However, this effect was only visible after an extended period of culture (6 days). In the case of SMCs, it was proved that the best growth of SMCs is obtained for micron fibers (with an average diameter close to 900 nm) compared to the submicron fibers (with an average diameter below 900 nm).
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Affiliation(s)
- Iwona Łopianiak
- Laboratory of Biomedical Engineering, Faculty of Chemical and Process Engineering, Warsaw University of Technology, Waryńskiego 1, 00-645, Warsaw, Poland
| | - Michał Wojasiński
- Laboratory of Biomedical Engineering, Faculty of Chemical and Process Engineering, Warsaw University of Technology, Waryńskiego 1, 00-645, Warsaw, Poland
| | - Aleksandra Kuźmińska
- Laboratory of Biomedical Engineering, Faculty of Chemical and Process Engineering, Warsaw University of Technology, Waryńskiego 1, 00-645, Warsaw, Poland
| | - Paulina Trzaskowska
- Centre for Advanced Materials and Technologies CEZAMAT, Warsaw University of Technology, Poleczki 19, 02-822, Warsaw, Poland
| | - Beata A Butruk-Raszeja
- Laboratory of Biomedical Engineering, Faculty of Chemical and Process Engineering, Warsaw University of Technology, Waryńskiego 1, 00-645, Warsaw, Poland.
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25
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Pien N, Pezzoli D, Van Hoorick J, Copes F, Vansteenland M, Albu M, De Meulenaer B, Mantovani D, Van Vlierberghe S, Dubruel P. Development of photo-crosslinkable collagen hydrogel building blocks for vascular tissue engineering applications: A superior alternative to methacrylated gelatin? MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 130:112460. [PMID: 34702535 DOI: 10.1016/j.msec.2021.112460] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2021] [Revised: 09/08/2021] [Accepted: 09/23/2021] [Indexed: 12/13/2022]
Abstract
The present work targets the development of collagen-based hydrogel precursors, functionalized with photo-crosslinkable methacrylamide moieties (COL-MA), for vascular tissue engineering (vTE) applications. The developed materials were physico-chemically characterized in terms of crosslinking kinetics, degree of modification/conversion, swelling behavior, mechanical properties and in vitro cytocompatibility. The collagen derivatives were benchmarked to methacrylamide-modified gelatin (GEL-MA), due to its proven track record in the field of tissue engineering. To the best of our knowledge, this is the first paper in its kind comparing these two methacrylated biopolymers for vTE applications. For both gelatin and collagen, two derivatives with varying degrees of substitutions (DS) were developed by altering the added amount of methacrylic anhydride (MeAnH). This led to photo-crosslinkable derivatives with a DS of 74 and 96% for collagen, and a DS of 73 and 99% for gelatin. The developed derivatives showed high gel fractions (i.e. 74% and 84%, for the gelatin derivatives; 87 and 83%, for the collagen derivatives) and an excellent crosslinking efficiency. Furthermore, the results indicated that the functionalization of collagen led to hydrogels with tunable mechanical properties (i.e. storage moduli of [4.8-9.4 kPa] for the developed COL-MAs versus [3.9-8.4 kPa] for the developed GEL-MAs) along with superior cell-biomaterial interactions when compared to GEL-MA. Moreover, the developed photo-crosslinkable collagens showed superior mechanical properties compared to extracted native collagen. Therefore, the developed photo-crosslinkable collagens demonstrate great potential as biomaterials for vTE applications.
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Affiliation(s)
- Nele Pien
- Polymer Chemistry & Biomaterials Research Group, Centre of Macromolecular Chemistry (CMaC), Ghent University, Krijgslaan 281 S4bis, 9000 Gent, Belgium; Laboratory for Biomaterials and Bioengineering, CRC-I, Laval University, Pavillon Pouliot, Québec G1V 0A6, Canada
| | - Daniele Pezzoli
- Laboratory for Biomaterials and Bioengineering, CRC-I, Laval University, Pavillon Pouliot, Québec G1V 0A6, Canada
| | - Jasper Van Hoorick
- Polymer Chemistry & Biomaterials Research Group, Centre of Macromolecular Chemistry (CMaC), Ghent University, Krijgslaan 281 S4bis, 9000 Gent, Belgium
| | - Francesco Copes
- Laboratory for Biomaterials and Bioengineering, CRC-I, Laval University, Pavillon Pouliot, Québec G1V 0A6, Canada
| | - Margot Vansteenland
- Research Group Food Chemistry and Human Nutrition, Department of Food Safety and Food Quality, Ghent University, Coupure Links 653, Block B, 9000 Gent, Belgium
| | - Madalina Albu
- Department of Collagen Research, National Research & Development Institute for Textiles and Leather, Str. Patrascanu Lucretiu, 16, Bucuresti-Sector 3, Bucuresti 030508, București, Romania
| | - Bruno De Meulenaer
- Research Group Food Chemistry and Human Nutrition, Department of Food Safety and Food Quality, Ghent University, Coupure Links 653, Block B, 9000 Gent, Belgium
| | - Diego Mantovani
- Laboratory for Biomaterials and Bioengineering, CRC-I, Laval University, Pavillon Pouliot, Québec G1V 0A6, Canada
| | - Sandra Van Vlierberghe
- Polymer Chemistry & Biomaterials Research Group, Centre of Macromolecular Chemistry (CMaC), Ghent University, Krijgslaan 281 S4bis, 9000 Gent, Belgium
| | - Peter Dubruel
- Polymer Chemistry & Biomaterials Research Group, Centre of Macromolecular Chemistry (CMaC), Ghent University, Krijgslaan 281 S4bis, 9000 Gent, Belgium.
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26
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Karakaya C, van Asten JGM, Ristori T, Sahlgren CM, Loerakker S. Mechano-regulated cell-cell signaling in the context of cardiovascular tissue engineering. Biomech Model Mechanobiol 2021; 21:5-54. [PMID: 34613528 PMCID: PMC8807458 DOI: 10.1007/s10237-021-01521-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Accepted: 09/15/2021] [Indexed: 01/18/2023]
Abstract
Cardiovascular tissue engineering (CVTE) aims to create living tissues, with the ability to grow and remodel, as replacements for diseased blood vessels and heart valves. Despite promising results, the (long-term) functionality of these engineered tissues still needs improvement to reach broad clinical application. The functionality of native tissues is ensured by their specific mechanical properties directly arising from tissue organization. We therefore hypothesize that establishing a native-like tissue organization is vital to overcome the limitations of current CVTE approaches. To achieve this aim, a better understanding of the growth and remodeling (G&R) mechanisms of cardiovascular tissues is necessary. Cells are the main mediators of tissue G&R, and their behavior is strongly influenced by both mechanical stimuli and cell-cell signaling. An increasing number of signaling pathways has also been identified as mechanosensitive. As such, they may have a key underlying role in regulating the G&R of tissues in response to mechanical stimuli. A more detailed understanding of mechano-regulated cell-cell signaling may thus be crucial to advance CVTE, as it could inspire new methods to control tissue G&R and improve the organization and functionality of engineered tissues, thereby accelerating clinical translation. In this review, we discuss the organization and biomechanics of native cardiovascular tissues; recent CVTE studies emphasizing the obtained engineered tissue organization; and the interplay between mechanical stimuli, cell behavior, and cell-cell signaling. In addition, we review past contributions of computational models in understanding and predicting mechano-regulated tissue G&R and cell-cell signaling to highlight their potential role in future CVTE strategies.
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Affiliation(s)
- Cansu Karakaya
- Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, the Netherlands.,Institute for Complex Molecular Systems, Eindhoven University of Technology, Eindhoven, the Netherlands
| | - Jordy G M van Asten
- Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, the Netherlands.,Institute for Complex Molecular Systems, Eindhoven University of Technology, Eindhoven, the Netherlands
| | - Tommaso Ristori
- Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, the Netherlands.,Institute for Complex Molecular Systems, Eindhoven University of Technology, Eindhoven, the Netherlands.,Department of Biomedical Engineering, Boston University, Boston, MA, USA
| | - Cecilia M Sahlgren
- Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, the Netherlands.,Institute for Complex Molecular Systems, Eindhoven University of Technology, Eindhoven, the Netherlands.,Faculty of Science and Engineering, Biosciences, Åbo Akademi, Turku, Finland
| | - Sandra Loerakker
- Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, the Netherlands. .,Institute for Complex Molecular Systems, Eindhoven University of Technology, Eindhoven, the Netherlands.
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27
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Zhang C, Xie Q, Cha R, Ding L, Jia L, Mou L, Cheng S, Wang N, Li Z, Sun Y, Cui C, Zhang Y, Zhang Y, Zhou F, Jiang X. Anticoagulant Hydrogel Tubes with Poly(ɛ-Caprolactone) Sheaths for Small-Diameter Vascular Grafts. Adv Healthc Mater 2021; 10:e2100839. [PMID: 34218526 DOI: 10.1002/adhm.202100839] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 06/21/2021] [Indexed: 12/17/2022]
Abstract
Small-diameter vascular grafts (inner diameter < 6 mm) are useful in treating cardiovascular diseases. The off-the-shelf small-diameter vascular grafts for clinical applications remain a great limitation owing to their thrombogenicity or intimal hyperplasia. Herein, bilayer anticoagulant hydrogel tubes with poly(ε-caprolactone) (PCL) sheaths are prepared by freeze-thawing and electrospinning, which contain nanofibrillated cellulose (NFC)/poly(vinyl alcohol) (PVA)-heparin/poly-L-lysine nanoparticles tube as an inner layer and PCL sheath as an outer layer. The structure, anticoagulant property, and biocompatibility of the inner layer are studied. The effects of thickness of the outer layer on perfusion performance and mechanical property of hydrogel tubes with PCL sheaths (PCL-NFC/PVA-NPs tubes) are investigated. The effect of compliance of PCL-NFC/PVA-NPs tubes on their blood flow is studied by numerical simulation. The tissue compatibility and the patency of PCL-NFC/PVA-NPs tubes are evaluated by implantation in subcutaneous tissue of rats and carotid artery of rabbits. PCL-NFC/PVA-NPs tubes have prominent anticoagulation, sufficient burst pressure and good compliance similar to native arteries. PCL-NFC/PVA-NPs tubes facilitate infiltration of host cells and achieve active proliferation of recruited cells, which will be a promising candidate for small-diameter vascular grafts.
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Affiliation(s)
- Chunliang Zhang
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes National Laboratory of Mineral Materials School of Materials Science and Technology China University of Geosciences (Beijing) No. 29 Xueyuan Road, Haidian District Beijing 100083 P. R. China
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety CAS Center for Excellence in Nanoscience National Center for NanoScience and Technology No. 11 Zhongguancun Beiyitiao, Haidian District Beijing 100190 P. R. China
| | - Qian Xie
- Division of Nephrology Peking University Third Hospital No. 49 Huayuan Road North, Haidian District Beijing 100191 P. R. China
| | - Ruitao Cha
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety CAS Center for Excellence in Nanoscience National Center for NanoScience and Technology No. 11 Zhongguancun Beiyitiao, Haidian District Beijing 100190 P. R. China
| | - Li Ding
- Department of Cardiac Surgery Fuwai Hospital State Key Laboratory of Cardiovascular Disease National Center for Cardiovascular Diseases Chinese Academy of Medical Sciences and Peking Union Medical College No. 167 Beilishi Road, Xicheng District Beijing 100037 P. R. China
| | - Liujun Jia
- Animal Experimental Center Fuwai Hospital Chinese Academy of Medical Sciences and Peking Union Medical College Research and Evaluation for Cardiovascular Implant Materials No. 167 Beilishi Road, Xicheng District Beijing 100037 P. R. China
| | - Lei Mou
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety CAS Center for Excellence in Nanoscience National Center for NanoScience and Technology No. 11 Zhongguancun Beiyitiao, Haidian District Beijing 100190 P. R. China
| | - Shiyu Cheng
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety CAS Center for Excellence in Nanoscience National Center for NanoScience and Technology No. 11 Zhongguancun Beiyitiao, Haidian District Beijing 100190 P. R. China
| | - Nuoxin Wang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety CAS Center for Excellence in Nanoscience National Center for NanoScience and Technology No. 11 Zhongguancun Beiyitiao, Haidian District Beijing 100190 P. R. China
| | - Zulan Li
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety CAS Center for Excellence in Nanoscience National Center for NanoScience and Technology No. 11 Zhongguancun Beiyitiao, Haidian District Beijing 100190 P. R. China
| | - Yang Sun
- Department of Pathology Fuwai Hospital State Key Laboratory of Cardiovascular Disease National Center for Cardiovascular Diseases Chinese Academy of Medical Sciences and Peking Union Medical College No. 167 Beilishi Road, Xicheng District Beijing 100037 P. R. China
| | - Chuanjue Cui
- Department of Cardiac Surgery Fuwai Hospital State Key Laboratory of Cardiovascular Disease National Center for Cardiovascular Diseases Chinese Academy of Medical Sciences and Peking Union Medical College No. 167 Beilishi Road, Xicheng District Beijing 100037 P. R. China
| | - Yu Zhang
- Department of Cardiology Beijing Anzhen Hospital Capital Medical University No. 2 Anzhen Road, Chaoyang District Beijing 100029 P. R. China
| | - Yan Zhang
- Department of Cardiac Surgery Fuwai Hospital State Key Laboratory of Cardiovascular Disease National Center for Cardiovascular Diseases Chinese Academy of Medical Sciences and Peking Union Medical College No. 167 Beilishi Road, Xicheng District Beijing 100037 P. R. China
| | - Fengshan Zhou
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes National Laboratory of Mineral Materials School of Materials Science and Technology China University of Geosciences (Beijing) No. 29 Xueyuan Road, Haidian District Beijing 100083 P. R. China
| | - Xingyu Jiang
- Shenzhen Key Laboratory of Smart Healthcare Engineering Department of Biomedical Engineering Southern University of Science and Technology No. 1088 Xueyuan Road, Nanshan District Shenzhen Guangdong 518055 P. R. China
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28
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Engineering Vascular Grafts with Multiphase Structures. Methods Mol Biol 2021. [PMID: 34591303 DOI: 10.1007/978-1-0716-1708-3_10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
Abstract
Blood vessels in the body are multiphasic organs with microenvironmental niches specific to the cells that inhabit each section. Electrospinning is a fabrication technique used to produce nano- to microfibrous architectures capable of mimicking native extracellular matrix structure. Likewise, polycitrate elastomers are favorable luminal materials for vascular applications because of their hemocompatibility and mechanical properties. Here we describe the procedure for fabricating a biphasic polycitrate elastomer, collagen, and elastin electrospun composite to spatially tailor both composition and architecture for recapitulating the intimal and medial layers of the blood vessel in a vascular graft.
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29
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Li MX, Li L, Zhou SY, Cao JH, Liang WH, Tian Y, Shi XT, Yang XB, Wu DY. A biomimetic orthogonal-bilayer tubular scaffold for the co-culture of endothelial cells and smooth muscle cells. RSC Adv 2021; 11:31783-31790. [PMID: 35496878 PMCID: PMC9041441 DOI: 10.1039/d1ra04472a] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Accepted: 09/17/2021] [Indexed: 11/21/2022] Open
Abstract
In blood vessels, endothelial cells (ECs) grow along the direction of blood flow, while smooth muscle cells (SMCs) grow circumferentially along the vessel wall. To mimic this structure, a polycaprolactone (PCL) tubular scaffold with orthogonally oriented bilayer nanofibers was prepared via electrospinning and winding. ECs were cultured on the inner layer of the scaffold with axial nanofibers and SMCs were cultured on the outer layer of the scaffold with circumferential nanofibers. Fluorescence images of the F-actin distribution of ECs and SMCs indicated that cells adhered, stretched, and proliferated in an oriented manner on the scaffold. Moreover, layers of ECs and SMCs formed on the scaffold after one month of incubation. The expression levels of platelet-endothelial cell adhesion molecule 1 (PECAM-1) and a contractile SMC phenotype marker in the EC/SMC co-culture system were much higher than those in individual culture systems, thus demonstrating that the proposed biomimetic scaffold promoted the intercellular junction of ECs and preserved the contractile phenotype of SMCs. To mimic blood vessels, a polycaprolactone tubular scaffold was prepared via electrospinning and winding. Endothelial cells were cultured on the inner layer with axial nanofibers and smooth muscle cells were cultured on the outer layer with circumferential nanofibers.![]()
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Affiliation(s)
- Mei-Xi Li
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences Beijing 100190 P. R. China .,University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Lei Li
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences Beijing 100190 P. R. China .,CAS Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences Beijing 100190 P. R. China
| | - Si-Yuan Zhou
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences Beijing 100190 P. R. China .,University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Jian-Hua Cao
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences Beijing 100190 P. R. China
| | - Wei-Hua Liang
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences Beijing 100190 P. R. China
| | - Ye Tian
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences Beijing 100190 P. R. China .,Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences Beijing 100190 P. R. China
| | - Xue-Tao Shi
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology Guangzhou 510006 P. R. China
| | - Xiu-Bin Yang
- Department of Cardiac Surgery, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Beijing Anzhen Hospital, Capital Medical University Beijing 100029 P. R. China
| | - Da-Yong Wu
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences Beijing 100190 P. R. China
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30
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Yamanaka H, Mahara A, Morimoto N, Yamaoka T. REDV-modified decellularized microvascular grafts for arterial and venous reconstruction. J Biomed Mater Res A 2021; 110:547-558. [PMID: 34486215 DOI: 10.1002/jbm.a.37305] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 07/02/2021] [Accepted: 08/26/2021] [Indexed: 11/09/2022]
Abstract
Recently, a decellularized microvascular graft (inner diameter: 0.6 mm) modified with the integrin α4β1 ligand, REDV, was developed to provide an alternative to autologous-vein grafting in reconstructive microsurgery, showing good early-stage patency under arterial flow in rats. This consecutive study evaluated its potential utility not only as an arterial substitute, but also as a venous substitute, using a rat-tail replantation model. Graft remodeling depending on hemodynamic status was also investigated. ACI rat tail arteries were decellularized via ultra-high-hydrostatic pressure treatment and modified with REDV to induce antithrombogenic interfaces and promote endothelialization after implantation. Grafts were implanted into the tail artery and vein to re-establish blood circulation in amputated Lewis rat tails (n = 12). The primary endpoint was the survival of replants. Secondary endpoints were graft patency, remodeling, and regeneration for 6 months. In all but three cases with technical errors or postoperative self-mutilation, tails survived without any evidence of ischemia or congestion. Six-month Kaplan-Meier patency was 100% for tail-artery implanted grafts and 62% for tail-vein implanted grafts. At 6 months, the neo-tunica media (thickness: 95.0 μm in tail-artery implanted grafts, 9.3 μm in tail-vein implanted grafts) was regenerated inside the neo-intima. In conclusion, the microvascular grafts functioned well both as arterial and venous paths of replanted-rat tails, with different remodeling under arterial and venous conditions.
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Affiliation(s)
- Hiroki Yamanaka
- Department of Biomedical Engineering, National Cerebral and Cardiovascular Center Research Institute, Osaka, Japan.,Department of Plastic and Reconstructive Surgery, Graduate School of Medicine and Faculty of Medicine, Kyoto University, Kyoto, Japan
| | - Atsushi Mahara
- Department of Biomedical Engineering, National Cerebral and Cardiovascular Center Research Institute, Osaka, Japan
| | - Naoki Morimoto
- Department of Plastic and Reconstructive Surgery, Graduate School of Medicine and Faculty of Medicine, Kyoto University, Kyoto, Japan
| | - Tetsuji Yamaoka
- Department of Biomedical Engineering, National Cerebral and Cardiovascular Center Research Institute, Osaka, Japan
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31
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Ye L, Takagi T, Tu C, Hagiwara A, Geng X, Feng Z. The performance of heparin modified poly(ε-caprolactone) small diameter tissue engineering vascular graft in canine-A long-term pilot experiment in vivo. J Biomed Mater Res A 2021; 109:2493-2505. [PMID: 34096176 DOI: 10.1002/jbm.a.37243] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 05/12/2021] [Accepted: 05/28/2021] [Indexed: 01/22/2023]
Abstract
Long-term in vivo observation in large animal model is critical for evaluating the potential of small diameter tissue engineering vascular graft (SDTEVG) in clinical application, but is rarely reported. In this study, a SDTEVG is fabricated by the electrospinning of poly(ε-caprolactone) and subsequent heparin modification. SDTEVG is implanted into canine's abdominal aorta for 511 days in order to investigate its clinical feasibility. An active and robust remodeling process was characterized by a confluent endothelium, macrophage infiltrate, extracellular matrix deposition and remodeling on the explanted graft. The immunohistochemical and immunofluorescence analysis further exhibit the regeneration of endothelium and smooth muscle layer on tunica intima and tunica media, respectively. Thus, long-term follow-up reveals viable neovessel formation beyond graft degradation. Furthermore, the von Kossa staining exhibits no occurrence of calcification. However, although no TEVG failure or rupture happens during the follow-up, the aneurysm is found by both Doppler ultrasonic and gross observation. Consequently, as-prepared TEVG shows promising potential in vascular tissue engineering if it can be appropriately strengthened to prevent the occurrence of aneurysm.
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Affiliation(s)
- Lin Ye
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, China.,Department of Medical Life System, Doshisha University, Kyoto, Japan
| | - Toshitaka Takagi
- Department of Medical Life System, Doshisha University, Kyoto, Japan
| | - Chengzhao Tu
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, China
| | - Akeo Hagiwara
- Department of Medical Life System, Doshisha University, Kyoto, Japan
| | - Xue Geng
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, China.,Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, Beijing, China
| | - Zengguo Feng
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, China.,Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, Beijing, China
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32
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Electrospinning of small diameter vascular grafts with preferential fiber directions and comparison of their mechanical behavior with native rat aortas. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 124:112085. [PMID: 33947575 DOI: 10.1016/j.msec.2021.112085] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Revised: 03/09/2021] [Accepted: 03/29/2021] [Indexed: 11/21/2022]
Abstract
Conventional electrospun small diameter vascular grafts have a random fiber orientation. In order to achieve mechanical characteristics similar to a native blood vessel, a controllable fiber orientation is of interest. In this study the electrospinning jet was directly controlled by means of an auxiliary, changeable electrostatic field, so that the fibers could be deposited in adjustable orientations. Prostheses with circumferentially, axially, fenestrated and randomly aligned fibers were electrospun on Ø2mm mandrels out of a thermoplastic polyurethane (PUR) and a polylactid acid (PLLA). The impact of the materials and the various preferential fiber orientations on the resulting biomechanics was investigated and compared with that of the native rat aorta in quasistatic and dynamic hoop tensile tests. The test protocol included 3000 dynamic loading cycles in the physiological blood pressure range and ended with a quasistatic tensile test. Any orientation of the fibers in a particular direction resulted in a significant reduction in scaffold porosity for both materials. The standard randomly oriented PUR grafts showed the highest compliance of 29.7 ± 5.5 [%/100 mmHg] and were thus closest to the compliance of the rat aortas, which was 37.2 ± 6.5 [%/100 mmHg]. The maximum tensile force was increased at least 6 times compared to randomly spun grafts by orienting the fibers in the circumferential direction. During the 3000 loading cycles, creeping of the native rat aorta was below 1% whereas the electrospun grafts showed creeping up to 2.4 ± 1.2%. Although the preferred fiber orientations were only partially visible in the scanning electron micrographs, the mechanical effects were evident. The investigations suggest a multi-layer wall structure of the vascular prosthesis, since none of the preferred fiber directions and the materials used could imitate the typical j-shaped mechanical characteristics of the rat aorta.
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33
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Zhang Q, He S, Zhu X, Luo H, Gama M, Peng M, Deng X, Wan Y. Heparinization and hybridization of electrospun tubular graft for improved endothelialization and anticoagulation. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 122:111861. [PMID: 33641887 DOI: 10.1016/j.msec.2020.111861] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 12/05/2020] [Accepted: 12/24/2020] [Indexed: 10/22/2022]
Abstract
Constructing biomimetic structure and immobilizing antithrombus factors are two effective methods to ensure rapid endothelialization and long-term anticoagulation for small-diameter vascular grafts. However, few literatures are available regarding simultaneous implementation of these two strategies. Herein, a nano-micro-fibrous biomimetic graft with a heparin coating was prepared via a step-by-step in situ biosynthesis method to improve potential endothelialization and anticoagulation. The 4-mm-diameter tubular graft consists of electrospun cellulose acetate (CA) microfibers and entangled bacterial nanocellulose (BNC) nanofibers with heparin coating on dual fibers. The hybridized and heparinized graft possesses suitable pore structure that facilitates endothelia cells adhesion and proliferation but prevents infiltration of fibrous tissue and blood leakage. In addition, it shows higher mechanical properties than those of bare CA and hybridized CA/BNC grafts, which match well with native blood vessels. Moreover, this dually modified graft exhibits improved blood compatibility and endothelialization over the counterparts without hybridization or heparinization according to the testing results of platelet adhesion, cell morphology, and protein expression of von Willebrand Factor. This novel graft with dual modifications shows promising as a new small-diameter vascular graft. This study provides a guidance for promoting endothelialization and blood compatibility by dual modifications of biomimetic structure and immobilized bioactive molecules.
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Affiliation(s)
- Quanchao Zhang
- Jiangxi Key Laboratory of Nanobiomaterials, Institute of Advanced Materials, East China Jiaotong University, Nanchang 330013, China
| | - Shan He
- Jiangxi Key Laboratory of Nanobiomaterials, Institute of Advanced Materials, East China Jiaotong University, Nanchang 330013, China
| | - Xiangbo Zhu
- Jiangxi Key Laboratory of Nanobiomaterials, Institute of Advanced Materials, East China Jiaotong University, Nanchang 330013, China
| | - Honglin Luo
- Jiangxi Key Laboratory of Nanobiomaterials, Institute of Advanced Materials, East China Jiaotong University, Nanchang 330013, China; School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China.
| | - Miguel Gama
- Centro de Engenharia Biológica, Universidade do Minho, Campus de Gualtar, P 4715-057 Braga, Portugal
| | - Mengxia Peng
- Jiangxi Key Laboratory of Nanobiomaterials, Institute of Advanced Materials, East China Jiaotong University, Nanchang 330013, China
| | - Xiaoyan Deng
- Jiangxi Key Laboratory of Nanobiomaterials, Institute of Advanced Materials, East China Jiaotong University, Nanchang 330013, China.
| | - Yizao Wan
- Jiangxi Key Laboratory of Nanobiomaterials, Institute of Advanced Materials, East China Jiaotong University, Nanchang 330013, China; School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China.
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Salihu R, Abd Razak SI, Ahmad Zawawi N, Rafiq Abdul Kadir M, Izzah Ismail N, Jusoh N, Riduan Mohamad M, Hasraf Mat Nayan N. Citric acid: A green cross-linker of biomaterials for biomedical applications. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2021.110271] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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35
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Hosseini V, Mallone A, Nasrollahi F, Ostrovidov S, Nasiri R, Mahmoodi M, Haghniaz R, Baidya A, Salek MM, Darabi MA, Orive G, Shamloo A, Dokmeci MR, Ahadian S, Khademhosseini A. Healthy and diseased in vitro models of vascular systems. LAB ON A CHIP 2021; 21:641-659. [PMID: 33507199 DOI: 10.1039/d0lc00464b] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Irregular hemodynamics affects the progression of various vascular diseases, such atherosclerosis or aneurysms. Despite the extensive hemodynamics studies on animal models, the inter-species differences between humans and animals hamper the translation of such findings. Recent advances in vascular tissue engineering and the suitability of in vitro models for interim analysis have increased the use of in vitro human vascular tissue models. Although the effect of flow on endothelial cell (EC) pathophysiology and EC-flow interactions have been vastly studied in two-dimensional systems, they cannot be used to understand the effect of other micro- and macro-environmental parameters associated with vessel wall diseases. To generate an ideal in vitro model of the vascular system, essential criteria should be included: 1) the presence of smooth muscle cells or perivascular cells underneath an EC monolayer, 2) an elastic mechanical response of tissue to pulsatile flow pressure, 3) flow conditions that accurately mimic the hemodynamics of diseases, and 4) geometrical features required for pathophysiological flow. In this paper, we review currently available in vitro models that include flow dynamics and discuss studies that have tried to address the criteria mentioned above. Finally, we critically review in vitro fluidic models of atherosclerosis, aneurysm, and thrombosis.
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Affiliation(s)
- Vahid Hosseini
- Center for Minimally Invasive Therapeutics (C-MIT), University of California-Los Angeles, CA 90095, USA and California NanoSystems Institute and Department of Bioengineering, University of California-Los Angeles, CA 90095, USA and Terasaki Institute for Biomedical Innovation, Los Angeles, CA 90024, USA.
| | - Anna Mallone
- Institute of Regenerative Medicine, University of Zurich, Zurich CH-8952, Switzerland
| | - Fatemeh Nasrollahi
- Center for Minimally Invasive Therapeutics (C-MIT), University of California-Los Angeles, CA 90095, USA and California NanoSystems Institute and Department of Bioengineering, University of California-Los Angeles, CA 90095, USA and Terasaki Institute for Biomedical Innovation, Los Angeles, CA 90024, USA.
| | - Serge Ostrovidov
- Center for Minimally Invasive Therapeutics (C-MIT), University of California-Los Angeles, CA 90095, USA and Department of Radiological Sciences, University of California-Los Angeles, CA 90095, USA
| | - Rohollah Nasiri
- Center for Minimally Invasive Therapeutics (C-MIT), University of California-Los Angeles, CA 90095, USA and California NanoSystems Institute and Department of Bioengineering, University of California-Los Angeles, CA 90095, USA and Department of Mechanical Engineering, Sharif University of Technology, Tehran 1136511155, Iran
| | - Mahboobeh Mahmoodi
- Center for Minimally Invasive Therapeutics (C-MIT), University of California-Los Angeles, CA 90095, USA and California NanoSystems Institute and Department of Bioengineering, University of California-Los Angeles, CA 90095, USA and Department of Biomedical Engineering, Yazd Branch, Islamic Azad University, Yazd 8915813135, Iran
| | - Reihaneh Haghniaz
- Center for Minimally Invasive Therapeutics (C-MIT), University of California-Los Angeles, CA 90095, USA and California NanoSystems Institute and Department of Bioengineering, University of California-Los Angeles, CA 90095, USA and Terasaki Institute for Biomedical Innovation, Los Angeles, CA 90024, USA.
| | - Avijit Baidya
- Center for Minimally Invasive Therapeutics (C-MIT), University of California-Los Angeles, CA 90095, USA and California NanoSystems Institute and Department of Bioengineering, University of California-Los Angeles, CA 90095, USA
| | - M Mehdi Salek
- School of Engineering, Massachusetts Institute of Technology (MIT), Cambridge, MA 02139, USA
| | - Mohammad Ali Darabi
- Center for Minimally Invasive Therapeutics (C-MIT), University of California-Los Angeles, CA 90095, USA and California NanoSystems Institute and Department of Bioengineering, University of California-Los Angeles, CA 90095, USA and Terasaki Institute for Biomedical Innovation, Los Angeles, CA 90024, USA.
| | - Gorka Orive
- NanoBioCel Group, Laboratory of Pharmaceutics, School of Pharmacy, University of the Basque Country UPV/EHU, Paseo de la Universidad 7, Vitoria-Gasteiz 01006, Spain and Biomedical Research Networking Centre in Bioengineering, Biomaterials, and Nanomedicine (CIBER-BBN), Vitoria-Gasteiz 01007, Spain
| | - Amir Shamloo
- Department of Mechanical Engineering, Sharif University of Technology, Tehran 1136511155, Iran
| | - Mehmet R Dokmeci
- Center for Minimally Invasive Therapeutics (C-MIT), University of California-Los Angeles, CA 90095, USA and California NanoSystems Institute and Department of Bioengineering, University of California-Los Angeles, CA 90095, USA and Terasaki Institute for Biomedical Innovation, Los Angeles, CA 90024, USA.
| | - Samad Ahadian
- Center for Minimally Invasive Therapeutics (C-MIT), University of California-Los Angeles, CA 90095, USA and California NanoSystems Institute and Department of Bioengineering, University of California-Los Angeles, CA 90095, USA and Terasaki Institute for Biomedical Innovation, Los Angeles, CA 90024, USA.
| | - Ali Khademhosseini
- Center for Minimally Invasive Therapeutics (C-MIT), University of California-Los Angeles, CA 90095, USA and California NanoSystems Institute and Department of Bioengineering, University of California-Los Angeles, CA 90095, USA and Terasaki Institute for Biomedical Innovation, Los Angeles, CA 90024, USA.
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Travnickova M, Kasalkova NS, Sedlar A, Molitor M, Musilkova J, Slepicka P, Svorcik V, Bacakova L. Differentiation of adipose tissue-derived stem cells towards vascular smooth muscle cells on modified poly(L-lactide) foils. Biomed Mater 2021; 16:025016. [PMID: 33599213 DOI: 10.1088/1748-605x/abaf97] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The aim of our research was to study the behaviour of adipose tissue-derived stem cells (ADSCs) and vascular smooth muscle cells (VSMCs) on variously modified poly(L-lactide) (PLLA) foils, namely on pristine PLLA, plasma-treated PLLA, PLLA grafted with polyethylene glycol (PEG), PLLA grafted with dextran (Dex), and the tissue culture polystyrene (PS) control. On these materials, the ADSCs were biochemically differentiated towards VSMCs by a medium supplemented with TGFβ1, BMP4 and ascorbic acid (i.e. differentiation medium). ADSCs cultured in a non-differentiation medium were used as a negative control. Mature VSMCs cultured in both types of medium were used as a positive control. The impact of the variously modified PLLA foils and/or differences in the composition of the medium were studied with reference to cell adhesion, growth and differentiation. We observed similar adhesion and growth of ADSCs on all PLLA samples when they were cultured in the non-differentiation medium. The differentiation medium supported the expression of specific early, mid-term and/or late markers of differentiation (i.e. type I collagen, αSMA, calponin, smoothelin, and smooth muscle myosin heavy chain) in ADSCs on all tested samples. Moreover, ADSCs cultured in the differentiation medium revealed significant differences in cell growth among the samples that were similar to the differences observed in the cultures of VSMCs. The round morphology of the VSMCs indicated worse adhesion to pristine PLLA, and this sample was also characterized by the lowest cell proliferation. Culturing VSMCs in the differentiation medium inhibited their metabolic activity and reduced the cell numbers. Both cell types formed the most stable monolayer on plasma-treated PLLA and on the PS control. The behaviour of ADSCs and VSMCs on the tested PLLA foils differed according to the specific cell type and culture conditions. The suitable biocompatibility of both cell types on the tested PLLA foils seems to be favourable for vascular tissue engineering purposes.
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Affiliation(s)
- Martina Travnickova
- Department of Biomaterials and Tissue Engineering, Institute of Physiology of the Czech Academy of Sciences, Videnska 1083, 142 20, Prague 4, Czech Republic.,Second Faculty of Medicine, Charles University, V Uvalu 84, 150 06, Prague 5, Czech Republic
| | - Nikola Slepickova Kasalkova
- Department of Solid State Engineering, University of Chemistry and Technology, Technicka 5, 166 28, Prague 6, Czech Republic
| | - Antonin Sedlar
- Department of Biomaterials and Tissue Engineering, Institute of Physiology of the Czech Academy of Sciences, Videnska 1083, 142 20, Prague 4, Czech Republic
| | - Martin Molitor
- Department of Plastic Surgery, Na Bulovce Hospital and First Faculty of Medicine, Charles University, Budinova 67/2, 180 81, Prague 8, Czech Republic
| | - Jana Musilkova
- Department of Biomaterials and Tissue Engineering, Institute of Physiology of the Czech Academy of Sciences, Videnska 1083, 142 20, Prague 4, Czech Republic
| | - Petr Slepicka
- Department of Solid State Engineering, University of Chemistry and Technology, Technicka 5, 166 28, Prague 6, Czech Republic
| | - Vaclav Svorcik
- Department of Solid State Engineering, University of Chemistry and Technology, Technicka 5, 166 28, Prague 6, Czech Republic
| | - Lucie Bacakova
- Department of Biomaterials and Tissue Engineering, Institute of Physiology of the Czech Academy of Sciences, Videnska 1083, 142 20, Prague 4, Czech Republic
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Hu Q, Shen Z, Zhang H, Liu S, Feng R, Feng J, Ramalingam M. Designed and fabrication of triple-layered vascular scaffold with microchannels. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2021; 32:714-734. [PMID: 33332231 DOI: 10.1080/09205063.2020.1864083] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Currently, one of the best preparation strategies for the triple-layered vascular scaffold is to imitate the three-layer structure of natural blood vessels to achieve the biofunctional characteristics of vascular transplantation. Here, we developed a combinatorial method to fabricate triple-layered vascular scaffold (TVS) by using electrospinning and coaxial 3 D printing. First, Polycaprolactone-collagen (PCL-Col) was applied to prepared the inner layer of TVS by electrospinning. Second, egg white/sodium alginate (EW/SA) blend hydrogel was extruded to form hollow filaments by coaxial 3 D printing and crosslinking mechanism, which enwound around the surface of the inner layer in a circumferential direction as the intermediate layer of TVS. Finally, electrospun PCL-Col nanofibers were wrapped on the surface of hydrogel layer as the outer layer of TVS. The morphological characterization and mechanical strength of the fabricated TVS were measured. Compared with natural blood vessels, results shown that ultimate tensile stress (UTS), strain to failure (STF), the estimated burst strength and the suture retention strength (SRS) of TVS were superior. Also, the fabricated TVS exhibits good hydrophilicity and excellent flexibility. Moreover, the biocompatibility of TVS was investigated through human umbilical vein endothelial cells (HUVECs), the results demonstrated that cells can successfully attach the surface of graft and maintain high viability. In summary, all of results demonstrated that this method could fabricate a novel triple-layered vascular scaffold, possessing appropriate mechanical properties and good biological properties, which has the potential to be used in tissue engineered vascular grafts applications.
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Affiliation(s)
- Qingxi Hu
- Rapid Manufacturing Engineering Center, Mechatronic Engineering and Automation of Shanghai University, Shanghai, China.,Shanghai Key Laboratory of Intelligent Manufacturing and Robotics, Shanghai University, Shanghai, China
| | - Zhipeng Shen
- Rapid Manufacturing Engineering Center, Mechatronic Engineering and Automation of Shanghai University, Shanghai, China
| | - Haiguang Zhang
- Rapid Manufacturing Engineering Center, Mechatronic Engineering and Automation of Shanghai University, Shanghai, China.,Shanghai Key Laboratory of Intelligent Manufacturing and Robotics, Shanghai University, Shanghai, China
| | - Suihong Liu
- Rapid Manufacturing Engineering Center, Mechatronic Engineering and Automation of Shanghai University, Shanghai, China
| | - Rui Feng
- Department of Vascular Surgery, Changhai Hospital, Shanghai, China
| | - Jiaxuan Feng
- Department of Vascular Surgery, Changhai Hospital, Shanghai, China
| | - Murugan Ramalingam
- Biomaterials and Organ Engineering Group, Centre for Biomaterials, Cellular and Molecular Theranostics, School of Mechanical Engineering, Vellore Institute of Technology, Vellore, India
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38
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Jia W, Li M, Liu L, Zhou H, Liu X, Gu G, Xiao M, Chen Z. Fabrication and assessment of chondroitin sulfate-modified collagen nanofibers for small-diameter vascular tissue engineering applications. Carbohydr Polym 2021; 257:117573. [PMID: 33541632 DOI: 10.1016/j.carbpol.2020.117573] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 12/16/2020] [Accepted: 12/26/2020] [Indexed: 12/11/2022]
Abstract
Chondroitin sulfate (ChS) has shown promising results in promoting cell proliferation and antithrombogenic activity. To engineered develop a dual-function vascular scaffold with antithrombosis and endothelialization, ChS was tethered to collagen to accelerate the growth of endothelial cells and prevent platelet activation. First, ChS was used to conjugate with collagen to generate glycosylated products (ChS-COL) via reductive amination. Then, the fabricated ChS-COL conjugates were electrospun into nanofibers and their morphologies and physicochemical characteristics, cell-scaffold responses and platelet behaviors upon ChS-COL nanofibers were comprehensively characterized to evaluate their potential use for small-diameter vascular tissue-engineered scaffolds. The experimental results demonstrated that the ChS modified collagen electrospun nanofibers were stimulatory of endothelial cell behavior, alleviated thrombocyte activation and maintained an antithrombotic effect in vivo in 10-day post-transplantation. The ChS-COL scaffolds encouraged rapid endothelialization, thus probably ensuring the antithrombotic function in long-term implantation, suggesting their promise for small-diameter vascular tissue engineering applications.
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Affiliation(s)
- Weibin Jia
- National Glycoengineering Research Center, and Shandong Provincial Key Laboratory of Carbohydrate Chemistry and Glycobiology, Shandong University, Qingdao, 266200, People's Republic of China
| | - Min Li
- National Glycoengineering Research Center, and Shandong Provincial Key Laboratory of Carbohydrate Chemistry and Glycobiology, Shandong University, Qingdao, 266200, People's Republic of China
| | - Liling Liu
- National Glycoengineering Research Center, and Shandong Provincial Key Laboratory of Carbohydrate Chemistry and Glycobiology, Shandong University, Qingdao, 266200, People's Republic of China
| | - Hang Zhou
- National Glycoengineering Research Center, and Shandong Provincial Key Laboratory of Carbohydrate Chemistry and Glycobiology, Shandong University, Qingdao, 266200, People's Republic of China
| | - Xiankun Liu
- Graduate College of Tianjin Medical University, Tianjin, 300070, People's Republic of China
| | - Guofeng Gu
- National Glycoengineering Research Center, and Shandong Provincial Key Laboratory of Carbohydrate Chemistry and Glycobiology, Shandong University, Qingdao, 266200, People's Republic of China
| | - Min Xiao
- National Glycoengineering Research Center, and Shandong Provincial Key Laboratory of Carbohydrate Chemistry and Glycobiology, Shandong University, Qingdao, 266200, People's Republic of China
| | - Zonggang Chen
- National Glycoengineering Research Center, and Shandong Provincial Key Laboratory of Carbohydrate Chemistry and Glycobiology, Shandong University, Qingdao, 266200, People's Republic of China.
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Eyre K, Samper E, Haverich A, Hilfiker A, Andrée B. Re-endothelialization of non-detergent decellularized porcine vessels. Artif Organs 2020; 45:E53-E64. [PMID: 33001470 DOI: 10.1111/aor.13836] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 07/31/2020] [Accepted: 09/23/2020] [Indexed: 12/11/2022]
Abstract
Tissue engineering utilizes an interdisciplinary approach to generate constructs for the treatment and repair of diseased organs. Generation of small vessels as vascular grafts or as envisioned central vessel for vascularized constructs is still a challenge. Here, the decellularization of porcine vessels by a non-detergent based protocol was developed and investigated. Perfusion-decellularization with sodium hydroxide solution resulted in removal of cellular material throughout the whole length of the vessel while preserving structural and mechanical integrity. A re-endothelialization of the retrieved matrix with human umbilical vein endothelial cells and cardiac endothelial cells was achieved through rotation-based seeding employing a custom-made bioreactor. A confluent monolayer was detected on the entire luminal surface. Thus, a non-detergent-based decellularization method allowing the re-endothelialization of the luminal surface was developed in this study, thereby paving the way for future implementation of the resulting construct as vascular graft or as central vessel for tissue engineered constructs in need of a perfusion system with readily available anastomosis sites.
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Affiliation(s)
- Katerina Eyre
- Leibniz Research Laboratories for Biotechnology and Artificial Organs (LEBAO), Department of Cardiothoracic, Transplantation and Vascular Surgery, Hannover Medical School, Hannover, Germany
| | - Esther Samper
- Leibniz Research Laboratories for Biotechnology and Artificial Organs (LEBAO), Department of Cardiothoracic, Transplantation and Vascular Surgery, Hannover Medical School, Hannover, Germany
| | - Axel Haverich
- Leibniz Research Laboratories for Biotechnology and Artificial Organs (LEBAO), Department of Cardiothoracic, Transplantation and Vascular Surgery, Hannover Medical School, Hannover, Germany
| | - Andres Hilfiker
- Leibniz Research Laboratories for Biotechnology and Artificial Organs (LEBAO), Department of Cardiothoracic, Transplantation and Vascular Surgery, Hannover Medical School, Hannover, Germany
| | - Birgit Andrée
- Leibniz Research Laboratories for Biotechnology and Artificial Organs (LEBAO), Department of Cardiothoracic, Transplantation and Vascular Surgery, Hannover Medical School, Hannover, Germany
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Wen M, Yan H, Shi X, Zhao Y, Wang K, Kong D, Yuan X. Modulation of vascular endothelial cells under shear stress on electrospun membranes containing REDV and microRNA-126. INT J POLYM MATER PO 2020. [DOI: 10.1080/00914037.2020.1785452] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Meiling Wen
- School of Materials Science and Engineering, and Tianjin Key Laboratory of Composite and Functional Materials, Tianjin University, Tianjin, China
| | - Hongyu Yan
- Key Laboratory of Bioactive Materials of Ministry of Education, College of Life Science, Nankai University, Tianjin, China
| | - Xin Shi
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, China
| | - Yunhui Zhao
- School of Materials Science and Engineering, and Tianjin Key Laboratory of Composite and Functional Materials, Tianjin University, Tianjin, China
| | - Kai Wang
- Key Laboratory of Bioactive Materials of Ministry of Education, College of Life Science, Nankai University, Tianjin, China
| | - Deling Kong
- Key Laboratory of Bioactive Materials of Ministry of Education, College of Life Science, Nankai University, Tianjin, China
| | - Xiaoyan Yuan
- School of Materials Science and Engineering, and Tianjin Key Laboratory of Composite and Functional Materials, Tianjin University, Tianjin, China
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Jiao Y, Li C, Liu L, Wang F, Liu X, Mao J, Wang L. Construction and application of textile-based tissue engineering scaffolds: a review. Biomater Sci 2020; 8:3574-3600. [PMID: 32555780 DOI: 10.1039/d0bm00157k] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Tissue engineering (TE) provides a practicable method for tissue and organ repair or substitution. As the most important component of TE, a scaffold plays a critical role in providing a growing environment for cell proliferation and functional differentiation as well as good mechanical support. And the restorative effects are greatly dependent upon the nature of the scaffold including the composition, morphology, structure, and mechanical performance. Medical textiles have been widely employed in the clinic for a long time and are being extensively investigated as TE scaffolds. However, unfortunately, the advantages of textile technology cannot be fully exploited in tissue regeneration due to the ignoring of the diversity of fabric structures. Therefore, this review focuses on textile-based scaffolds, emphasizing the significance of the fabric design and the resultant characteristics of cell behavior and extracellular matrix reconstruction. The structure and mechanical behavior of the fabrics constructed by various textile techniques for different tissue repairs are summarized. Furthermore, the prospect of structural design in the TE scaffold preparation was anticipated, including profiled fibers and some unique and complex textile structures. Hopefully, the readers of this review would appreciate the importance of structural design of the scaffold and the usefulness of textile-based TE scaffolds in tissue regeneration.
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Affiliation(s)
- Yongjie Jiao
- Key Laboratory of Textile Science and Technology of Ministry of Education and College of Textiles, Donghua University, Shanghai 201620, China.
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Wen M, Zhi D, Wang L, Cui C, Huang Z, Zhao Y, Wang K, Kong D, Yuan X. Local Delivery of Dual MicroRNAs in Trilayered Electrospun Grafts for Vascular Regeneration. ACS APPLIED MATERIALS & INTERFACES 2020; 12:6863-6875. [PMID: 31958006 DOI: 10.1021/acsami.9b19452] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Globally growing problems related to cardiovascular diseases lead to a considerable need for synthetic vascular grafts. For small-caliber vascular prosthesis, it remains essential to fulfill rapid endothelialization, inhibit intimal hyperplasia, and prevent calcification for keeping patency. To modulate vascular regeneration, herein, we developed a bioactive trilayered tissue-engineered vascular graft encapsulating both microRNA-126 and microRNA-145 in the fibrous inner and middle layers, respectively. In vitro cell activities demonstrated that the trilayered electrospun membranes had significant biological advantages in enhanced growth and intracellular nitric oxide production of vascular endothelial cells, modulation of phenotypes of vascular smooth muscle cells (SMCs), and restraint of calcium deposition through fast-releasing microRNA-126 and slow-releasing microRNA-145. Histological and immunofluorescent analyses of in vivo implantation in a rat abdominal aorta interposition model suggested that the dual-microRNA-loading trilayered electrospun graft exerted a positive effect on accelerating endothelialization, improving contractile SMC regeneration, and promoting normal extracellular matrix formation. Meanwhile, the local bioactivity of microRNA-126 and microRNA-145 in the trilayered vascular graft could regulate inflammation and depress calcification possibly by facilitating transformation of macrophages into the anti-inflammatory M2 phenotype. These findings indicated that the trilayered electrospun graft by local delivery of dual microRNAs could be possibly used as a bioactive substitute for replacement of artificial small-caliber blood vessels.
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Affiliation(s)
- Meiling Wen
- School of Materials Science and Engineering, Tianjin Key Laboratory of Composite and Functional Materials , Tianjin University , Tianjin 300350 , China
| | - Dengke Zhi
- Key Laboratory of Bioactive Materials of Ministry of Education, College of Life Sciences , Nankai University , Tianjin 300071 , China
| | - Lina Wang
- Key Laboratory of Bioactive Materials of Ministry of Education, College of Life Sciences , Nankai University , Tianjin 300071 , China
| | - Ce Cui
- School of Materials Science and Engineering, Tianjin Key Laboratory of Composite and Functional Materials , Tianjin University , Tianjin 300350 , China
| | - Ziqi Huang
- Key Laboratory of Bioactive Materials of Ministry of Education, College of Life Sciences , Nankai University , Tianjin 300071 , China
| | - Yunhui Zhao
- School of Materials Science and Engineering, Tianjin Key Laboratory of Composite and Functional Materials , Tianjin University , Tianjin 300350 , China
| | - Kai Wang
- Key Laboratory of Bioactive Materials of Ministry of Education, College of Life Sciences , Nankai University , Tianjin 300071 , China
| | - Deling Kong
- Key Laboratory of Bioactive Materials of Ministry of Education, College of Life Sciences , Nankai University , Tianjin 300071 , China
| | - Xiaoyan Yuan
- School of Materials Science and Engineering, Tianjin Key Laboratory of Composite and Functional Materials , Tianjin University , Tianjin 300350 , China
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Jia W, Li M, Weng H, Gu G, Chen Z. Design and comprehensive assessment of a biomimetic tri-layer tubular scaffold via biodegradable polymers for vascular tissue engineering applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 110:110717. [PMID: 32204029 DOI: 10.1016/j.msec.2020.110717] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Revised: 12/29/2019] [Accepted: 02/02/2020] [Indexed: 11/26/2022]
Abstract
Considering the structural complexity of the native artery wall and the limitations of current treatment strategies, developing a biomimetic tri-layer tissue-engineered vascular graft is a major developmental direction of vascular tissue regeneration. Biodegradable polymers exhibit adequate mechanical characteristics and feasible operability, showing potential prospects in the construction of tissue engineering scaffold. Herein, we present a bio-inspired tri-layer tubular graft using biodegradable polymers to simulate natural vascular architecture. The inner layer made of polycaprolactone (PCL) nanofiber possesses high tensile strength and contributed to endothelial cell adhesion and proliferation. The middle layer consisted of poly(lactic-co-glycolide) (PLGA) with a three-dimensional porous structure is appropriate for vascular smooth muscle cells (SMCs) penetration. The polyurethane (PU) was selected to be the outer layer, aiming to hold the entire tubular structure, suggesting superior mechanical properties and ideal biocompatibility. Adhesion between independent layers is achieved by thermal crosslinking. The compliance, burst pressure and suture retention force of the tubular scaffold were 2.50 ± 1.60%, 2737.73 ± 583.41 mmHg and 13.06 ± 1.89 N, respectively. The in vivo study of subcutaneous implantation for 8 weeks demonstrated the biomimetic tri-layer vascular graft could maintain intimal integrity, cell infiltration, collagen deposition and scaffold biodegradation. Overall, the biomimetic tri-layer vascular graft promises to be a potential candidate for vascular replacement and regeneration.
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Affiliation(s)
- Weibin Jia
- National Glycoengineering Research Center and Shandong Provincial Key Laboratory of Carbohydrate Chemistry and Glycobiology, Shandong University, Qingdao 266200, PR China
| | - Min Li
- National Glycoengineering Research Center and Shandong Provincial Key Laboratory of Carbohydrate Chemistry and Glycobiology, Shandong University, Qingdao 266200, PR China
| | - Hongjuan Weng
- National Glycoengineering Research Center and Shandong Provincial Key Laboratory of Carbohydrate Chemistry and Glycobiology, Shandong University, Qingdao 266200, PR China
| | - Guofeng Gu
- National Glycoengineering Research Center and Shandong Provincial Key Laboratory of Carbohydrate Chemistry and Glycobiology, Shandong University, Qingdao 266200, PR China
| | - Zonggang Chen
- National Glycoengineering Research Center and Shandong Provincial Key Laboratory of Carbohydrate Chemistry and Glycobiology, Shandong University, Qingdao 266200, PR China.
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James BD, Ruddick WN, Vasisth SE, Dulany K, Sulekar S, Porras A, Marañon A, Nino JC, Allen JB. Palm readings: Manicaria saccifera palm fibers are biocompatible textiles with low immunogenicity. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 108:110484. [PMID: 31924028 DOI: 10.1016/j.msec.2019.110484] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2019] [Revised: 11/20/2019] [Accepted: 11/20/2019] [Indexed: 12/21/2022]
Abstract
Plant-based fibers are a potential alternative to synthetic polymer fibers that can yield enhanced biocompatibility and mechanical properties matching those properties of tissue. Given the unique morphology of the bract of the Manicaria saccifera palm, being an interwoven meshwork of fibers, we believe that these fibers with this built-in structure could prove useful as a tissue engineering scaffold material. Thus, we first investigated the fiber's in vitro biocompatibility and immunogenicity. We cultured NIH/3T3 mouse fibroblasts, human aortic smooth muscle cells, and human adipose-derived mesenchymal stem cells on the fiber mats, which all readily attached and over 21 days grew to engulf the fibers. Importantly, this was achieved without treating the plant tissue with extracellular matrix proteins or any adhesion ligands. In addition, we measured the gene expression and protein secretion of three target inflammatory cytokines (IL-1β, IL-8, and TNFα) from THP-1 human leukemia monocytes cultured in the presence of the biotextile as an in vitro immunological model. After 24 h of culture, gene expression and protein secretion were largely the same as the control, demonstrating the low immunogenicity of Manicaria saccifera fibers. We also measured the tensile mechanical properties of the fibers. Individual fibers after processing had a Young's modulus of 9.51 ± 4.38 GPa and a tensile strength of 68.62 ± 27.93 MPa. We investigated the tensile mechanical properties of the fiber mats perpendicular to the fiber axis (transverse loading), which displayed upwards of 100% strain, but with a concession in strength compared to longitudinal loading. Collectively, our in vitro assessments point toward Manicaria saccifera as a highly biocompatible biotextile, with a range of potential clinical and engineering applications.
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Affiliation(s)
- Bryan D James
- Department of Materials Science and Engineering, University of Florida, 100 Rhines Hall, Gainesville, FL 32611, USA
| | - William N Ruddick
- Department of Materials Science and Engineering, University of Florida, 100 Rhines Hall, Gainesville, FL 32611, USA
| | - Shangradhanva E Vasisth
- Department of Materials Science and Engineering, University of Florida, 100 Rhines Hall, Gainesville, FL 32611, USA
| | - Krista Dulany
- Department of Materials Science and Engineering, University of Florida, 100 Rhines Hall, Gainesville, FL 32611, USA
| | - Soumitra Sulekar
- Department of Materials Science and Engineering, University of Florida, 100 Rhines Hall, Gainesville, FL 32611, USA
| | - Alicia Porras
- Mechanical Engineering Department, Universidad de los Andes, CR 1 ESTE 19A 40, Bogota 111711, Colombia
| | - Alejandro Marañon
- Chemical Engineering Department, Universidad de los Andes, CR, 1 ESTE 19A 40, Bogota, 111711, Colombia
| | - Juan C Nino
- Department of Materials Science and Engineering, University of Florida, 100 Rhines Hall, Gainesville, FL 32611, USA
| | - Josephine B Allen
- Department of Materials Science and Engineering, University of Florida, 100 Rhines Hall, Gainesville, FL 32611, USA.
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Pennings I, van Haaften EE, Jungst T, Bulsink JA, Rosenberg AJWP, Groll J, Bouten CVC, Kurniawan NA, Smits AIPM, Gawlitta D. Layer-specific cell differentiation in bi-layered vascular grafts under flow perfusion. Biofabrication 2019; 12:015009. [PMID: 31553965 DOI: 10.1088/1758-5090/ab47f0] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Bioengineered grafts have the potential to overcome the limitations of autologous and non-resorbable synthetic vessels as vascular substitutes. However, one of the challenges in creating these living grafts is to induce and maintain multiple cell phenotypes with a biomimetic organization. Our biomimetic grafts with heterotypic design hold promises for functional neovessel regeneration by guiding the layered cellular and tissue organization into a native-like structure. In this study, a perfusable two-compartment bioreactor chamber was designed for the further maturation of these vascular grafts, with a compartmentalized exposure of the graft's luminal and outer layer to cell-specific media. We used the system for a co-culture of endothelial colony forming cells and multipotent mesenchymal stromal cells (MSCs) in the vascular grafts, produced by combining electrospinning and melt electrowriting. It was demonstrated that the targeted cell phenotypes (i.e. endothelial cells (ECs) and vascular smooth muscle cells (vSMCs), respectively) could be induced and maintained during flow perfusion. The confluent luminal layer of ECs showed flow responsiveness, as indicated by the upregulation of COX-2, KLF2, and eNOS, as well as through stress fiber remodeling and cell elongation. In the outer layer, the circumferentially oriented, multi-layered structure of MSCs could be successfully differentiated into vSM-like cells using TGFβ, as indicated by the upregulation of αSMA, calponin, collagen IV, and (tropo)elastin, without affecting the endothelial monolayer. The cellular layers inhibited diffusion between the outer and the inner medium reservoirs. This implies tightly sealed cellular layers in the constructs, resulting in truly separated bioreactor compartments, ensuring the exposure of the inner endothelium and the outer smooth muscle-like layer to cell-specific media. In conclusion, using this system, we successfully induced layer-specific cell differentiation with a native-like cell organization. This co-culture system enables the creation of biomimetic neovessels, and as such can be exploited to investigate and improve bioengineered vascular grafts.
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Affiliation(s)
- Iris Pennings
- Department of Oral and Maxillofacial Surgery & Special Dental Care, UMC Utrecht, Utrecht University, Utrecht, The Netherlands. Regenerative Medicine Center Utrecht, Utrecht, The Netherlands
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Advances in tissue engineering of nanocellulose-based scaffolds: A review. Carbohydr Polym 2019; 224:115144. [PMID: 31472870 DOI: 10.1016/j.carbpol.2019.115144] [Citation(s) in RCA: 103] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Revised: 07/08/2019] [Accepted: 07/29/2019] [Indexed: 01/12/2023]
Abstract
Scaffolds based on nanocellulose (NC) have crucial applications in tissue engineering (TE) owing to the biocompatibility, water absorption, water retention, optical transparency, and chemo-mechanical properties. In this review, we summarize the scaffolds based on nanocellulose, including nanocrystalline cellulose and nanofibrillated cellulose. We compare four representative methods to prepare NC-based scaffolds, containing electrospinning, freeze-drying, 3D printing, and solvent casting. We outline the characteristics of scaffolds obtained by different methods. Our focus is on the applications of NC-based scaffolds to repair, improve or replace damaged tissues and organs, including skin, blood vessel, nerve, skeletal muscle, heart, liver, and ophthalmology. NC-based scaffolds are attractive materials for regeneration of different tissues and organs due to the remarkable features. Finally, we propose the challenges and potentials of NC-based TE scaffolds.
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Zhang F, Xie Y, Celik H, Akkus O, Bernacki SH, King MW. Engineering small-caliber vascular grafts from collagen filaments and nanofibers with comparable mechanical properties to native vessels. Biofabrication 2019; 11:035020. [PMID: 30943452 DOI: 10.1088/1758-5090/ab15ce] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
At the present time, there is no successful synthetic, off-the-shelf small-caliber vascular graft (<6 mm) for the repair or bypass of the coronary or carotid arteries. This stimulates on-going investigations to fabricate an artificial vascular graft that has both sufficient mechanical properties as well as superior biological performance. Collagen has long been considered as a viable material to encourage cell recruitment, tissue regeneration, and revascularization, but its use has been limited by its inferior mechanical properties. In this study, novel electrochemically aligned collagen filaments were used to engineer a bilayer small-caliber vascular graft, by circular knitting the collagen filaments and electrospinning collagen nanofibers. The collagen prototype grafts showed significantly greater bursting strength under dry and hydrated conditions to that of autografts such as the human internal mammary artery and the saphenous vein (SV). The suture retention strength was sufficient under dry condition, but that under hydrated condition needs to be further improved. The radial dynamic compliance of the collagen grafts was similar to that of the human SV. During in vitro cell culture assays with human umbilical vein endothelial cells, the prototype collagen grafts also encouraged cell adhesion and promoted cell proliferation compared to the synthetic poly(lactic acid) grafts. In conclusion, this study demonstrated the feasibility of the use of novel collagen filaments for fabricating small caliber tissue-engineered vascular grafts that provide both sufficient mechanical properties and superior biological performance.
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Affiliation(s)
- Fan Zhang
- Wilson College of Textiles, North Carolina State University, Raleigh, United States of America
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