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Wang X, Zou Z, Li K, Ren C, Yu X, Zhang Y, Zhao P, Yan S, Li Q. Design and fabrication of dual-layer PCL nanofibrous scaffolds with inductive influence on vascular cell responses. Colloids Surf B Biointerfaces 2024; 240:113988. [PMID: 38810467 DOI: 10.1016/j.colsurfb.2024.113988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 05/03/2024] [Accepted: 05/22/2024] [Indexed: 05/31/2024]
Abstract
Confronted with the profound threat of cardiovascular diseases to health, vascular tissue engineering presents potential beyond the limitations of autologous and allogeneic grafts, offering a promising solution. This study undertakes an initial exploration into the impact of a natural active protein, elastin, on vascular cell behavior, by incorporating with polycaprolactone to prepare fibrous tissue engineering scaffold. The results reveal that elastin serves to foster endothelial cell adhesion and proliferation, suppress smooth muscle cell proliferation, and induce macrophage polarization. Furthermore, the incorporation of elastin contributes to heightened scaffold strength, compliance, and elongation, concomitantly lowering the elastic modulus. Subsequently, a bilayer oriented polycaprolactone (PCL) scaffold infused with elastin is proposed. This design draws inspiration from the cellular arrangement of native blood vessels, leveraging oriented fibers to guide cell orientation. The resulting fiber scaffold exhibits commendable mechanical properties and cell infiltration capacity, imparting valuable insights for the rapid endothelialization of vascular scaffolds.
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Affiliation(s)
- Xiaofeng Wang
- School of Mechanics and Safety Engineering, Zhengzhou University, Zhengzhou 450001, China; The State Key Laboratory of Fluid Power and Mechatronic Systems, Zhejiang University, Hangzhou 310027, China; National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou 450001, China
| | - Zifan Zou
- School of Mechanics and Safety Engineering, Zhengzhou University, Zhengzhou 450001, China; National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou 450001, China
| | - Kecheng Li
- School of Mechanics and Safety Engineering, Zhengzhou University, Zhengzhou 450001, China; National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou 450001, China
| | - Cuihong Ren
- School of Mechanics and Safety Engineering, Zhengzhou University, Zhengzhou 450001, China; National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou 450001, China
| | - Xiaorong Yu
- School of Mechanics and Safety Engineering, Zhengzhou University, Zhengzhou 450001, China; National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou 450001, China.
| | - Yang Zhang
- National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou 450001, China
| | - Peng Zhao
- The State Key Laboratory of Fluid Power and Mechatronic Systems, Zhejiang University, Hangzhou 310027, China
| | - Shujie Yan
- School of Mechanics and Safety Engineering, Zhengzhou University, Zhengzhou 450001, China; National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou 450001, China.
| | - Qian Li
- School of Mechanics and Safety Engineering, Zhengzhou University, Zhengzhou 450001, China; National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou 450001, China
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Yang B, Yang Z, Tang L. Recent progress in fiber-based soft electronics enabled by liquid metal. Front Bioeng Biotechnol 2023; 11:1178995. [PMID: 37187888 PMCID: PMC10175636 DOI: 10.3389/fbioe.2023.1178995] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Accepted: 04/20/2023] [Indexed: 05/17/2023] Open
Abstract
Soft electronics can seamlessly integrate with the human skin which will greatly improve the quality of life in the fields of healthcare monitoring, disease treatment, virtual reality, and human-machine interfaces. Currently, the stretchability of most soft electronics is achieved by incorporating stretchable conductors with elastic substrates. Among stretchable conductors, liquid metals stand out for their metal-grade conductivity, liquid-grade deformability, and relatively low cost. However, the elastic substrates usually composed of silicone rubber, polyurethane, and hydrogels have poor air permeability, and long-term exposure can cause skin redness and irritation. The substrates composed of fibers usually have excellent air permeability due to their high porosity, making them ideal substrates for soft electronics in long-term applications. Fibers can be woven directly into various shapes, or formed into various shapes on the mold by spinning techniques such as electrospinning. Here, we provide an overview of fiber-based soft electronics enabled by liquid metals. An introduction to the spinning technology is provided. Typical applications and patterning strategies of liquid metal are presented. We review the latest progress in the design and fabrication of representative liquid metal fibers and their application in soft electronics such as conductors, sensors, and energy harvesting. Finally, we discuss the challenges of fiber-based soft electronics and provide an outlook on future prospects.
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Affiliation(s)
- Bowen Yang
- Beijing Key Laboratory of Fundamental Research on Biomechanics in Clinical Application, School of Biomedical Engineering, Capital Medical University, Beijing, China
| | - Zihan Yang
- Fashion Accessory Art and Engineering College, Beijing Institute of Fashion Technology, Beijing, China
- *Correspondence: Zihan Yang, ; Lixue Tang,
| | - Lixue Tang
- Beijing Key Laboratory of Fundamental Research on Biomechanics in Clinical Application, School of Biomedical Engineering, Capital Medical University, Beijing, China
- Beijing Advanced Innovation Center for Big Data-Based Precision Medicine, Capital Medical University, Beijing, China
- *Correspondence: Zihan Yang, ; Lixue Tang,
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3
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Generation of Controlled Micrometric Fibers inside Printed Scaffolds Using Standard FDM 3D Printers. Polymers (Basel) 2022; 15:polym15010096. [PMID: 36616446 PMCID: PMC9824594 DOI: 10.3390/polym15010096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 12/12/2022] [Accepted: 12/22/2022] [Indexed: 12/28/2022] Open
Abstract
New additive manufacturing techniques, such as melting electro-writing (MEW) or near-field electrospinning (NFES), are now used to include microfibers inside 3D printed scaffolds as FDM printers present a limited resolution in the XY axis, not making it easy to go under 100 µm without dealing with nozzle troubles. This work studies the possibility of creating reproducible microscopic internal fibers inside scaffolds printed by standard 3D printing. For this purpose, novel algorithms generating deposition routines (G-code) based on primitive geometrical figures were created by python scripts, modifying basic deposition conditions such as temperature, speed, or material flow. To evaluate the influence of these printing conditions on the creation of internal patterns at the microscopic level, an optical analysis of the printed scaffolds was carried out using a digital microscope and subsequent image analysis with ImageJ software. To conclude, the formation of heterogeneously shaped microfilaments (48 ± 12 µm, mean ± S.D.) was achieved in a standard FDM 3D Printer with the strategies developed in this work, and it was found that the optimum conditions for obtaining such microfibers were high speeds and a reduced extrusion multiplier.
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Liu C, Campbell SB, Li J, Bannerman D, Pascual-Gil S, Kieda J, Wu Q, Herman PR, Radisic M. High Throughput Omnidirectional Printing of Tubular Microstructures from Elastomeric Polymers. Adv Healthc Mater 2022; 11:e2201346. [PMID: 36165232 PMCID: PMC9742311 DOI: 10.1002/adhm.202201346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 09/09/2022] [Indexed: 01/28/2023]
Abstract
Bioelastomers are extensively used in biomedical applications due to their desirable mechanical strength, tunable properties, and chemical versatility; however, three-dimensional (3D) printing bioelastomers into microscale structures has proven elusive. Herein, a high throughput omnidirectional printing approach via coaxial extrusion is described that fabricates perfusable elastomeric microtubes of unprecedently small inner diameter (350-550 µm) and wall thickness (40-60 µm). The versatility of this approach is shown through the printing of two different polymeric elastomers, followed by photocrosslinking and removal of the fugitive inner phase. Designed experiments are used to tune the microtube dimensions and stiffness to match that of native ex vivo rat vasculature. This approach affords the fabrication of multiple biomimetic shapes resembling cochlea and kidney glomerulus and affords facile, high-throughput generation of perfusable structures that can be seeded with endothelial cells for biomedical applications. Post-printing laser micromachining is performed to generate micro-sized holes (520 µm) in the tube wall to tune microstructure permeability. Importantly, for organ-on-a-chip applications, the described approach takes only 3.6 min to print microtubes (without microholes) over an entire 96-well plate device, in contrast to comparable hole-free structures that take between 1.5 and 6.5 days to fabricate using a manual 3D stamping approach.
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Affiliation(s)
- Chuan Liu
- Institute of Biomedical Engineering, University of Toronto, Toronto, Ontario, Canada
| | - Scott B. Campbell
- Institute of Biomedical Engineering, University of Toronto, Toronto, Ontario, Canada
- Toronto General Hospital Research Institute, University Health Network, Toronto, Ontario, Canada
| | - Jianzhao Li
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, Canada
| | - Dawn Bannerman
- Institute of Biomedical Engineering, University of Toronto, Toronto, Ontario, Canada
- Toronto General Hospital Research Institute, University Health Network, Toronto, Ontario, Canada
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, Ontario, Canada
| | - Simon Pascual-Gil
- Toronto General Hospital Research Institute, University Health Network, Toronto, Ontario, Canada
| | - Jennifer Kieda
- Institute of Biomedical Engineering, University of Toronto, Toronto, Ontario, Canada
| | - Qinghua Wu
- Institute of Biomedical Engineering, University of Toronto, Toronto, Ontario, Canada
| | - Peter R. Herman
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, Canada
| | - Milica Radisic
- Institute of Biomedical Engineering, University of Toronto, Toronto, Ontario, Canada
- Toronto General Hospital Research Institute, University Health Network, Toronto, Ontario, Canada
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, Ontario, Canada
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5
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van Kampen KA, Fernández-Pérez J, Baker M, Mota C, Moroni L. Fabrication of a mimetic vascular graft using melt spinning with tailorable fiber parameters. BIOMATERIALS ADVANCES 2022; 139:212972. [PMID: 35882129 DOI: 10.1016/j.bioadv.2022.212972] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 05/16/2022] [Accepted: 06/02/2022] [Indexed: 06/15/2023]
Abstract
Smooth muscle cells play a pivotal role in maintaining blood pressure and remodeling of the extracellular matrix. These cells have a characteristic spindle shape and are aligned in the radial direction to aid in the constriction of any artery. Tissue engineered grafts have the potential to recreate this alignment and offer a viable alternative to non-resorbable or autologous grafts. Specifically, with melt spinning small diameter fibers can be created that can align circumferentially on the scaffolds. In this study, a set of simplified equations were formulated to predict the final fiber parameters. Smooth muscle cell alignment was monitored on the fabricated scaffolds. Finally, a co-culture of smooth muscle cells in direct contact with endothelial cells was performed to assess the influence of the smooth muscle cell alignment on the morphology of the endothelial cells. The results show that the equations were able to accurately predict the fiber diameter, distance and angle. Primary vascular smooth muscle cells aligned according to the fiber direction mimicking the native orientation. The co-culture with endothelial cells showed that the aligned smooth muscle cells did not have an influence on the morphology of the endothelial cells. In conclusion, we formulated a series of equations that can predict the fiber parameters during melt spinning. Furthermore, the method described here can create a vascular graft with smooth muscle cells aligned circumferentially that morphologically mimics the native orientation.
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Affiliation(s)
- Kenny A van Kampen
- Department of Complex Tissue Regeneration, MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, Universiteitssingel 40, 6229ER Maastricht, the Netherlands
| | - Julia Fernández-Pérez
- Department of Complex Tissue Regeneration, MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, Universiteitssingel 40, 6229ER Maastricht, the Netherlands
| | - Matthew Baker
- Department of Complex Tissue Regeneration, MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, Universiteitssingel 40, 6229ER Maastricht, the Netherlands
| | - Carlos Mota
- Department of Complex Tissue Regeneration, MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, Universiteitssingel 40, 6229ER Maastricht, the Netherlands
| | - Lorenzo Moroni
- Department of Complex Tissue Regeneration, MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, Universiteitssingel 40, 6229ER Maastricht, the Netherlands.
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6
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Yi B, Zhou B, Song Z, Yu L, Wang W, Liu W. Step-wise CAG@PLys@PDA-Cu2+ modification on micropatterned nanofibers for programmed endothelial healing. Bioact Mater 2022; 25:657-676. [PMID: 37056258 PMCID: PMC10086768 DOI: 10.1016/j.bioactmat.2022.07.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 06/23/2022] [Accepted: 07/08/2022] [Indexed: 11/26/2022] Open
Abstract
Native-like endothelium regeneration is a prerequisite for material-guided small-diameter vascular regeneration. In this study, a novel strategy is proposed to achieve phase-adjusted endothelial healing by step-wise modification of parallel-microgroove-patterned (i.e., micropatterned) nanofibers with polydopamine-copper ion (PDA-Cu2+) complexes, polylysine (PLys) molecules, and Cys-Ala-Gly (CAG) peptides (CAG@PLys@PDA-Cu2+). Using electrospun poly(l-lactide-co-caprolactone) random nanofibers as the demonstrating biomaterial, step-wise modification of CAG@PLys@PDA-Cu2+ significantly enhanced substrate wettability and protein adsorption, exhibited an excellent antithrombotic surface and outstanding phase-adjusted capacity of endothelium regeneration involving cell adhesion, endothelial monolayer formation, and the regenerated endothelium maturation. Upon in vivo implantation for segmental replacement of rabbit carotid arteries, CAG@PLys@PDA-Cu2+ modified grafts (2 mm inner diameter) with micropatterns on inner surface effectively accelerated native-like endothelium regeneration within 1 week, with less platelet aggregates and inflammatory response compared to those on non-modified grafts. Prolonged observations at 6- and 12-weeks post-implantation demonstrated a positive vascular remodeling with almost fully covered endothelium and mature smooth muscle layer in the modified vascular grafts, accompanied with well-organized extracellular matrix. By contrast, non-modified vascular grafts induced a disorganized tissue formation with a high risk of thrombogenesis. In summary, step-wise modification of CAG@PLys@PDA-Cu2+ on micropatterned nanofibers can significantly promote endothelial healing without inflicting thrombosis, thus confirming a novel strategy for developing functional vascular grafts or other blood-contacting materials/devices.
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8
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Shape-Memory Materials via Electrospinning: A Review. Polymers (Basel) 2022; 14:polym14050995. [PMID: 35267818 PMCID: PMC8914658 DOI: 10.3390/polym14050995] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 02/16/2022] [Accepted: 02/26/2022] [Indexed: 01/27/2023] Open
Abstract
This review aims to point out the importance of the synergic effects of two relevant and appealing polymeric issues: electrospun fibers and shape-memory properties. The attention is focused specifically on the design and processing of electrospun polymeric fibers with shape-memory capabilities and their potential application fields. It is shown that this field needs to be explored more from both scientific and industrial points of view; however, very promising results have been obtained up to now in the biomedical field and also as sensors and actuators and in electronics.
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9
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Weekes A, Bartnikowski N, Pinto N, Jenkins J, Meinert C, Klein TJ. Biofabrication of small diameter tissue-engineered vascular grafts. Acta Biomater 2022; 138:92-111. [PMID: 34781026 DOI: 10.1016/j.actbio.2021.11.012] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 10/21/2021] [Accepted: 11/09/2021] [Indexed: 12/12/2022]
Abstract
Current clinical treatment strategies for the bypassing of small diameter (<6 mm) blood vessels in the management of cardiovascular disease frequently fail due to a lack of suitable autologous grafts, as well as infection, thrombosis, and intimal hyperplasia associated with synthetic grafts. The rapid advancement of 3D printing and regenerative medicine technologies enabling the manufacture of biological, tissue-engineered vascular grafts (TEVGs) with the ability to integrate, remodel, and repair in vivo, promises a paradigm shift in cardiovascular disease management. This review comprehensively covers current state-of-the-art biofabrication technologies for the development of biomimetic TEVGs. Various scaffold based additive manufacturing methods used in vascular tissue engineering, including 3D printing, bioprinting, electrospinning and melt electrowriting, are discussed and assessed against the biomechanical and functional requirements of human vasculature, while the efficacy of decellularization protocols currently applied to engineered and native vessels are evaluated. Further, we provide interdisciplinary insight into the outlook of regenerative medicine for the development of vascular grafts, exploring key considerations and perspectives for the successful clinical integration of evolving technologies. It is expected that continued advancements in microscale additive manufacturing, biofabrication, tissue engineering and decellularization will culminate in the development of clinically viable, off-the-shelf TEVGs for small diameter applications in the near future. STATEMENT OF SIGNIFICANCE: Current clinical strategies for the management of cardiovascular disease using small diameter vessel bypassing procedures are inadequate, with up to 75% of synthetic grafts failing within 3 years of implantation. It is this critically important clinical problem that researchers in the field of vascular tissue engineering and regenerative medicine aim to alleviate using biofabrication methods combining additive manufacturing, biomaterials science and advanced cellular biology. While many approaches facilitate the development of bioengineered constructs which mimic the structure and function of native blood vessels, several challenges must still be overcome for clinical translation of the next generation of tissue-engineered vascular grafts.
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Affiliation(s)
- Angus Weekes
- Centre for Biomedical Technologies, Queensland University of Technology (QUT), Brisbane, QLD, 4059, Australia; School of Mechanical, Medical and Process Engineering, Faculty of Engineering, Queensland University of Technology (QUT), Brisbane, QLD, 4059, Australia; Herston Biofabrication Institute, Metro North Hospital and Health Services, Herston, QLD, 4006, Australia.
| | - Nicole Bartnikowski
- Centre for Biomedical Technologies, Queensland University of Technology (QUT), Brisbane, QLD, 4059, Australia; School of Mechanical, Medical and Process Engineering, Faculty of Engineering, Queensland University of Technology (QUT), Brisbane, QLD, 4059, Australia; Critical Care Research Group, The Prince Charles Hospital, Brisbane, QLD, 4035, Australia.
| | - Nigel Pinto
- Herston Biofabrication Institute, Metro North Hospital and Health Services, Herston, QLD, 4006, Australia; Department of Vascular Surgery, The Royal Brisbane and Women's Hospital, Herston, QLD, 4006, Australia.
| | - Jason Jenkins
- Herston Biofabrication Institute, Metro North Hospital and Health Services, Herston, QLD, 4006, Australia; Department of Vascular Surgery, The Royal Brisbane and Women's Hospital, Herston, QLD, 4006, Australia.
| | - Christoph Meinert
- Centre for Biomedical Technologies, Queensland University of Technology (QUT), Brisbane, QLD, 4059, Australia; School of Mechanical, Medical and Process Engineering, Faculty of Engineering, Queensland University of Technology (QUT), Brisbane, QLD, 4059, Australia; Herston Biofabrication Institute, Metro North Hospital and Health Services, Herston, QLD, 4006, Australia.
| | - Travis J Klein
- Centre for Biomedical Technologies, Queensland University of Technology (QUT), Brisbane, QLD, 4059, Australia; School of Mechanical, Medical and Process Engineering, Faculty of Engineering, Queensland University of Technology (QUT), Brisbane, QLD, 4059, Australia.
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10
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Chang P, Li S, Sun Q, Guo K, Wang H, Li S, Zhang L, Xie Y, Zheng X, Liu Y. Large full-thickness wounded skin regeneration using 3D-printed elastic scaffold with minimal functional unit of skin. J Tissue Eng 2022; 13:20417314211063022. [PMID: 35024135 PMCID: PMC8744076 DOI: 10.1177/20417314211063022] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Accepted: 11/09/2021] [Indexed: 12/31/2022] Open
Abstract
Traditional tissue engineering skin are composed of living cells and natural or synthetic scaffold. Besize the time delay and the risk of contamination involved with cell culture, the lack of autologous cell source and the persistence of allogeneic cells in heterologous grafts have limited its application. This study shows a novel tissue engineering functional skin by carrying minimal functional unit of skin (MFUS) in 3D-printed polylactide-co-caprolactone (PLCL) scaffold and collagen gel (PLCL + Col + MFUS). MFUS is full-layer micro skin harvested from rat autologous tail skin. 3D-printed PLCL elastic scaffold has the similar mechanical properties with rat skin which provides a suitable environment for MFUS growing and enhances the skin wound healing. Four large full-thickness skin defects with 30 mm diameter of each wound are created in rat dorsal skin, and treated either with tissue engineering functional skin (PLCL + Col + MFUS), or with 3D-printed PLCL scaffold and collagen gel (PLCL + Col), or with micro skin islands only (Micro skin), or without treatment (Normal healing). The wound treated with PLCL + Col + MFUS heales much faster than the other three groups as evidenced by the fibroblasts migration from fascia to the gap between the MFUS dermis layer, and functional skin with hair follicles and sebaceous gland has been regenerated. The PLCL + Col treated wound heals faster than normal healing wound, but no skin appendages formed in PLCL + Col-treated wound. The wound treated with micro skin islands heals slower than the wounds treated either with tissue engineering skin (PLCL + Col + MFUS) or with PLCL + Col gel. Our results provide a new strategy to use autologous MFUS instead "seed cells" as the bio-resource of engineering skin for large full-thickness skin wound healing.
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Affiliation(s)
- Peng Chang
- Department of Neurosurgery and Plastic and Reconstructive Surgery, Shengjing Hospital of China Medical University, Shenyang, China
| | - Shijie Li
- State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang, China
| | - Qian Sun
- Experimental Animal Center, General Hospital of Northern Center Command, Shenyang, China
| | - Kai Guo
- State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang, China
| | - Heran Wang
- State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang, China
| | - Song Li
- State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang, China
| | - Liming Zhang
- State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang, China
| | - Yongbao Xie
- State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang, China
| | - Xiongfei Zheng
- State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang, China
| | - Yunhui Liu
- Department of Neurosurgery and Plastic and Reconstructive Surgery, Shengjing Hospital of China Medical University, Shenyang, China.,Liaoning Medical Surgery and Rehabilitation Robot Engineering Research Center, Shenyang, China
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11
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Mandal S, Dube T, Mohapatra AK, Choudhury S, Khanam F, Yadav P, Chauhan VS, Mishra J, Panda JJ. Engineered Biocompatible and Stable Dipeptide Hydrogel with Tunable Mechanical and Cell Growth Properties to Embolden Neuroglial Cell Growth. Int J Pept Res Ther 2021. [DOI: 10.1007/s10989-021-10290-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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12
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Zhang Y, Wang X, Zhang Y, Liu Y, Wang D, Yu X, Wang H, Bai Z, Jiang YC, Li X, Zheng W, Li Q. Endothelial Cell Migration Regulated by Surface Topography of Poly(ε-caprolactone) Nanofibers. ACS Biomater Sci Eng 2021; 7:4959-4970. [PMID: 34543012 DOI: 10.1021/acsbiomaterials.1c00951] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The study of cell migration on biomaterials is of great significance in tissue engineering and regenerative medicine. In recent years, there has been increasing evidence that the physical properties of the extracellular matrix (ECM), such as surface topography, affect various cellular behaviors such as proliferation, adhesion, and migration. However, the biological mechanism of surface topography influencing cellular behavior is still unclear. In this study, we prepared polycaprolactone (PCL) fibrous materials with different surface microstructures by solvent casting, electrospinning, and self-induced crystallization. The corresponding topographical structure obtained is a two-dimensional (2D) flat surface, 2.5-dimensional (2.5D) fibers, and three-dimensional (3D) fibers with a multilevel microstructure. We then investigated the effects of the complex topographical structure on endothelial cell migration. Our study demonstrates that cells can sense the changes of micro- and nanomorphology on the surface of materials, adapt to the physical environment through biochemical reactions, and regulate actin polymerization and directional migration through Rac1 and Cdc42. The cells on the nanofibers are elongated spindles, and the positive feedback of cell adhesion and actin polymerization along the fiber direction makes the plasma membrane continue to protrude, promoting cell polarization and directional migration. This study might provide new insights into the biomaterial design, especially those used for artificial vascular grafts.
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Affiliation(s)
- Yang Zhang
- School of Mechanics and Safety Engineering, National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou 450001, China
| | - Xiaofeng Wang
- School of Mechanics and Safety Engineering, National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou 450001, China
| | - Yan Zhang
- School of Mechanics and Safety Engineering, National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou 450001, China
| | - Yajing Liu
- School of Mechanics and Safety Engineering, National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou 450001, China
| | - Dongfang Wang
- School of Mechanics and Safety Engineering, National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou 450001, China
| | - Xueke Yu
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Haonan Wang
- School of Mechanics and Safety Engineering, National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou 450001, China
| | - Zhiyuan Bai
- School of Mechanics and Safety Engineering, National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou 450001, China
| | - Yong-Chao Jiang
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Xiaomeng Li
- School of Mechanics and Safety Engineering, National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou 450001, China
| | - Wei Zheng
- Engineering and Technology Department, University of Wisconsin-STOUT, Menomonie, Wisconsin 54751, United States
| | - Qian Li
- School of Mechanics and Safety Engineering, National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou 450001, China
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13
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Wang C, Xu Y, Xia J, Zhou Z, Fang Y, Zhang L, Sun W. Multi-scale hierarchical scaffolds with aligned micro-fibers for promoting cell alignment. Biomed Mater 2021; 16. [PMID: 34116518 DOI: 10.1088/1748-605x/ac0a90] [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: 03/06/2021] [Accepted: 06/11/2021] [Indexed: 01/29/2023]
Abstract
Cell alignment plays an essential role in cytoskeleton reorganization, extracellular matrix remodeling, and biomechanical properties regulation of tissues such as vascular tissues, cardiac muscles, and tendons. Based on the natural-oriented features of cells in native tissues, various biomimetic scaffolds have been reported with the introduction of well-arranged ultrafine fibers to induce cell alignment. However, it is still a challenge to fabricate scaffolds with suitable mechanical properties, biomimetic microenvironment, and ability to promote cell alignment. In this paper, we propose an integrated 3D printing system to fabricate multi-scale hierarchical scaffolds combined with meso-, micro-, and nano-fibrous filaments, in which the meso-, micro-, and nano-fibers fabricated via fused deposition modeling, melt electrospining writing, and solution electrospining can provide structural support, promote cell alignment, and create a biomimetic microenvironment to facilitate cell function, respectively. The plasma surface modification was performed improve the surface wettability of the scaffolds by measuring the contact angle. The obtainedin vitrobiological results validate the ability of multi-scale hierarchical scaffolds to enhance cell adhesion and proliferation, and promote cell alignment with the guidance of the aligned microfibers produced via melt electrospining writing in hierarchical scaffolds.
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Affiliation(s)
- Chengjin Wang
- Biomanufacturing Center, Department of Mechanical Engineering, Tsinghua University, Beijing 100084, People's Republic of China.,Biomanufacturing and Rapid Forming Technology Key Laboratory of Beijing, Beijing 100084, People's Republic of China.,'Biomanufacturing and Engineering Living Systems' Innovation International Talents Base (111 Base), Beijing 100084, People's Republic of China
| | - Yuanyuan Xu
- Biomanufacturing Center, Department of Mechanical Engineering, Tsinghua University, Beijing 100084, People's Republic of China.,Biomanufacturing and Rapid Forming Technology Key Laboratory of Beijing, Beijing 100084, People's Republic of China.,'Biomanufacturing and Engineering Living Systems' Innovation International Talents Base (111 Base), Beijing 100084, People's Republic of China
| | - Jingjing Xia
- Biomanufacturing Center, Department of Mechanical Engineering, Tsinghua University, Beijing 100084, People's Republic of China.,Biomanufacturing and Rapid Forming Technology Key Laboratory of Beijing, Beijing 100084, People's Republic of China.,'Biomanufacturing and Engineering Living Systems' Innovation International Talents Base (111 Base), Beijing 100084, People's Republic of China
| | - Zhenzhen Zhou
- Biomanufacturing Center, Department of Mechanical Engineering, Tsinghua University, Beijing 100084, People's Republic of China.,Biomanufacturing and Rapid Forming Technology Key Laboratory of Beijing, Beijing 100084, People's Republic of China.,'Biomanufacturing and Engineering Living Systems' Innovation International Talents Base (111 Base), Beijing 100084, People's Republic of China
| | - Yongcong Fang
- Biomanufacturing Center, Department of Mechanical Engineering, Tsinghua University, Beijing 100084, People's Republic of China.,Biomanufacturing and Rapid Forming Technology Key Laboratory of Beijing, Beijing 100084, People's Republic of China.,'Biomanufacturing and Engineering Living Systems' Innovation International Talents Base (111 Base), Beijing 100084, People's Republic of China
| | - Lei Zhang
- Biomanufacturing Center, Department of Mechanical Engineering, Tsinghua University, Beijing 100084, People's Republic of China.,Biomanufacturing and Rapid Forming Technology Key Laboratory of Beijing, Beijing 100084, People's Republic of China.,'Biomanufacturing and Engineering Living Systems' Innovation International Talents Base (111 Base), Beijing 100084, People's Republic of China
| | - Wei Sun
- Biomanufacturing Center, Department of Mechanical Engineering, Tsinghua University, Beijing 100084, People's Republic of China.,Biomanufacturing and Rapid Forming Technology Key Laboratory of Beijing, Beijing 100084, People's Republic of China.,'Biomanufacturing and Engineering Living Systems' Innovation International Talents Base (111 Base), Beijing 100084, People's Republic of China.,Department of Mechanical Engineering, Drexel University, Philadelphia, PA 19104, United States of America
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14
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Ramos-Rodriguez DH, MacNeil S, Claeyssens F, Asencio IO. The Use of Microfabrication Techniques for the Design and Manufacture of Artificial Stem Cell Microenvironments for Tissue Regeneration. Bioengineering (Basel) 2021; 8:50. [PMID: 33922428 PMCID: PMC8146165 DOI: 10.3390/bioengineering8050050] [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: 03/24/2021] [Revised: 04/19/2021] [Accepted: 04/21/2021] [Indexed: 12/13/2022] Open
Abstract
The recapitulation of the stem cell microenvironment is an emerging area of research that has grown significantly in the last 10 to 15 years. Being able to understand the underlying mechanisms that relate stem cell behavior to the physical environment in which stem cells reside is currently a challenge that many groups are trying to unravel. Several approaches have attempted to mimic the biological components that constitute the native stem cell niche, however, this is a very intricate environment and, although promising advances have been made recently, it becomes clear that new strategies need to be explored to ensure a better understanding of the stem cell niche behavior. The second strand in stem cell niche research focuses on the use of manufacturing techniques to build simple but functional models; these models aim to mimic the physical features of the niche environment which have also been demonstrated to play a big role in directing cell responses. This second strand has involved a more engineering approach in which a wide set of microfabrication techniques have been explored in detail. This review aims to summarize the use of these microfabrication techniques and how they have approached the challenge of mimicking the native stem cell niche.
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Affiliation(s)
- David H. Ramos-Rodriguez
- Bioengineering and Health Technologies Group, The School of Clinical Dentistry, University of Sheffield, Sheffield S10 2TA, UK;
- Biomaterials and Tissue Engineering Group, Department of Materials Science and Engineering, Kroto Research Institute, University of Sheffield, Sheffield S3 7HQ, UK; (S.M.); (F.C.)
| | - Sheila MacNeil
- Biomaterials and Tissue Engineering Group, Department of Materials Science and Engineering, Kroto Research Institute, University of Sheffield, Sheffield S3 7HQ, UK; (S.M.); (F.C.)
| | - Frederik Claeyssens
- Biomaterials and Tissue Engineering Group, Department of Materials Science and Engineering, Kroto Research Institute, University of Sheffield, Sheffield S3 7HQ, UK; (S.M.); (F.C.)
| | - Ilida Ortega Asencio
- Bioengineering and Health Technologies Group, The School of Clinical Dentistry, University of Sheffield, Sheffield S10 2TA, UK;
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15
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Wang X, Liu J, Jing H, Li B, Sun Z, Li B, Kong D, Leng X, Wang Z. Biofabrication of poly(l-lactide-co-ε-caprolactone)/silk fibroin scaffold for the application as superb anti-calcification tissue engineered prosthetic valve. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 121:111872. [PMID: 33579497 DOI: 10.1016/j.msec.2021.111872] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 12/16/2020] [Accepted: 01/03/2021] [Indexed: 12/20/2022]
Abstract
In this study, electrospun scaffolds were fabricated by blending poly(l-lactide-co-ε-caprolactone) (PLCL) and silk fibroin (SF) with different ratios, and further the feasibility of electrospun PLCL/SF scaffolds were evaluated for application of tissue engineered heart valve (TEHV). Scanning electron microscopy (SEM) results showed that the surface of PLCL/SF electrospun scaffolds was smooth and uniform while the mechanical properties were appropriate as valve prosthesis. In vitro cytocompatibility evaluation results demonstrated that all of the PLCL/SF electrospun scaffolds were cytocompatible and valvular interstitial cells (VICs) cultured on PLCL/SF scaffolds of 80/20 & 70/30 ratios exhibited the best cytocompatibility. The in vitro osteogenic differentiation of VICs including alkaline phosphatase (ALP) activity and quantitative polymerase chain reaction (qPCR) assays indicated that PLCL/SF scaffolds of 80/20 & 90/10 ratios behaved better anti-calcification ability. In the in vivo calcification evaluation model of rat subdermal implantation, PLCL/SF scaffolds of 80/20 & 90/10 ratios presented better anti-calcification ability, which was consistent with the in vitro results. Moreover, PLCL/SF scaffolds of 80/20 & 70/30 ratios showed significantly enhanced cell infiltration and M2 macrophage with higher CD206+/CD68+ ratio. Collectively, our data demonstrated that electrospun scaffolds with the PLCL/SF ratio of 80/20 hold great potential as TEHV materials.
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Affiliation(s)
- Xiaoxiao Wang
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300192, China
| | - Jing Liu
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300192, China; Tianjin Enterprise Key Laboratory for Application Research of Hyaluronic Acid, Tianjin 300385, China.
| | - Huimin Jing
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300192, China
| | - Binhan Li
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300192, China
| | - Zhiting Sun
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300192, China
| | - Boxuan Li
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300192, China
| | - Deling Kong
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300192, China; Key Laboratory of Bioactive Materials of Ministry of Education, State Key Laboratory of Medicinal Chemical Biology, College of Life Science, Nankai University, Tianjin 300071, China
| | - Xigang Leng
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300192, China.
| | - Zhihong Wang
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300192, China.
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16
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Nanoscience and nanotechnology in fabrication of scaffolds for tissue regeneration. INTERNATIONAL NANO LETTERS 2020. [DOI: 10.1007/s40089-020-00318-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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17
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Mahara A, Li M, Ohya Y, Yamaoka T. Small-Diameter Synthetic Vascular Graft Immobilized with the REDV Peptide Reduces Early-Stage Fibrin Clot Deposition and Results in Graft Patency in Rats. Biomacromolecules 2020; 21:3092-3101. [DOI: 10.1021/acs.biomac.0c00457] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Atsushi Mahara
- Department of Biomedical Engineering, National Cerebral and Cardiovascular Center Research Institute, Kishibe Shim-machi, Suita, Osaka 5645-8565, Japan
| | - Minglun Li
- Department of Biomedical Engineering, National Cerebral and Cardiovascular Center Research Institute, Kishibe Shim-machi, Suita, Osaka 5645-8565, Japan
- Faculty of Chemistry, Materials and Bioengineering, Kansai University, 3-3-35 Yamatecho, Suita, Osaka 565-8680, Japan
| | - Yuichi Ohya
- Faculty of Chemistry, Materials and Bioengineering, Kansai University, 3-3-35 Yamatecho, Suita, Osaka 565-8680, Japan
| | - Tetsuji Yamaoka
- Department of Biomedical Engineering, National Cerebral and Cardiovascular Center Research Institute, Kishibe Shim-machi, Suita, Osaka 5645-8565, Japan
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18
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Sadeghzade N, Nouri M, Shams Nateri A. Evaluating Osteogenic Differentiation of Mesenchymal Stem Cells on Poly(caprolactone) Electrospun Scaffolds by Image Processing Techniques. BIONANOSCIENCE 2020. [DOI: 10.1007/s12668-019-00682-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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19
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Madike LN, Pillay M, Popat KC. Antithrombogenic properties of Tulbaghia violacea–loaded polycaprolactone nanofibers. J BIOACT COMPAT POL 2020. [DOI: 10.1177/0883911520903748] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
A broad range of polymers have been utilized for the development of blood-contacting implantable medical devices; however, their rate of failure has raised the need for developing more hemocompatible biomaterial surfaces. In this study, a novel scaffold based on polycaprolactone incorporated with 10% and 15% (w/w) Tulbaghia violacea plant extracts were fabricated using electrospinning technique. The fabricated scaffolds were then treated with T. violacea aqueous plant extracts (100 and 1000 µg/mL) to investigate their use as interfaces for blood-contacting implants. The 10% Tvio scaffold produced the lowest mean fibre diameter (193 ± 30 nm), whereas the 15% Tvio scaffold produces the highest mean fibre diameter (538 ± 236 nm) when compared with the control polycaprolactone (275 ± 61 nm) scaffold. The number of adhered platelets was directly linked to fibre diameter and concentration of plant extract in such a way that the lowest fibre diameter scaffold (10% Tvio) inhibited platelet adhesion, whereas more platelets adhered to the scaffold with the highest fibre diameter (15% Tvio scaffolds). There was also an increase in platelet adhesion as the concentration of T. violacea was increased from 100 to 1000 µg/mL for all designed scaffolds. The improved blood compatibility demonstrated by the 10% Tvio scaffold suggests that the plant possesses antithrombogenic properties, particularly at lower concentrations.
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Affiliation(s)
- Lerato N Madike
- Department of Biotechnology, Faculty of Applied and Computer Sciences, Vaal University of Technology, Vanderbijlpark, South Africa
| | - Michael Pillay
- Department of Biotechnology, Faculty of Applied and Computer Sciences, Vaal University of Technology, Vanderbijlpark, South Africa
| | - Ketul C Popat
- Department of Mechanical Engineering, School of Biomedical Engineering, Colorado State University, Fort Collins, CO, USA
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20
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Haider A, Haider S, Rao Kummara M, Kamal T, Alghyamah AAA, Jan Iftikhar F, Bano B, Khan N, Amjid Afridi M, Soo Han S, Alrahlah A, Khan R. Advances in the scaffolds fabrication techniques using biocompatible polymers and their biomedical application: A technical and statistical review. JOURNAL OF SAUDI CHEMICAL SOCIETY 2020. [DOI: 10.1016/j.jscs.2020.01.002] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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21
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Pouponneau P, Perrey O, Brunon C, Grossiord C, Courtois N, Salles V, Alves A. Electrospun Bioresorbable Membrane Eluting Chlorhexidine for Dental Implants. Polymers (Basel) 2020; 12:polym12010066. [PMID: 31906503 PMCID: PMC7023585 DOI: 10.3390/polym12010066] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Revised: 12/19/2019] [Accepted: 12/20/2019] [Indexed: 12/22/2022] Open
Abstract
To prevent the uncontrolled development of a pathogenic biofilm around a dental implant, an antimicrobial drug-release electrospun membrane, set up between the implant and the gingival tissue, was developed by taking several technical, industrial and regulatory specifications into account. The membrane formulation is made of a blend of poly(l-lactic–co–gycolic acid) (PLGA, 85:15) and poly(l-lactic acide–co–ɛ-caprolactone) (PLC, 70:30) copolymers with chlorhexidine diacetate (CHX) complexed with β-cyclodextrin (CD). The amount of residual solvent, the mechanical properties and the drug release kinetics were tuned by the copolymers’ ratio, between 30% and 100% of PLC, and a CHX loading up to 20% w/w. The membranes were sterilized by γ-irradiation without significant property changes. The fiber′s diameter was between 600 nm and 3 µm, depending on the membrane composition and the electrospinning parameters. CHX was released in vitro over 10 days and the bacterial inhibitory concentration, 80 µg·mL−1, was reached within eight days. The optimal membrane, PGLA/PLC/CHX-CD (60%/40%/4%), exhibited a breaking strain of 50%, allowing its safe handling. This membrane and a membrane without CHX-CD were implanted subcutaneous in a rat model. The cell penetration remained low. The next step will be to increase the porosity of the membrane to improve the dynamic cell penetration and tissue remodeling.
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Affiliation(s)
- Pierre Pouponneau
- Statice, 25000 Besançon, France;
- Correspondence: ; Tel.: +33-(0)381484343
| | | | - Céline Brunon
- Science et Surface, 69130 Écully, France; (C.B.); (C.G.)
| | | | | | - Vincent Salles
- Univ Lyon, Université Claude Bernard Lyon1, Laboratoire des Multimatériaux et Interfaces, UMR CNRS 5615, F-69622 Villeurbanne, France;
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22
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Chang C, Ginn B, Livingston NK, Yao Z, Slavin B, King MW, Chung S, Mao HQ. Medical Fibers and Biotextiles. Biomater Sci 2020. [DOI: 10.1016/b978-0-12-816137-1.00038-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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23
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Castiaux AD, Spence DM, Martin RS. Review of 3D Cell Culture with Analysis in Microfluidic Systems. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2019; 11:4220-4232. [PMID: 32051693 PMCID: PMC7015157 DOI: 10.1039/c9ay01328h] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
A review with 105 references that analyzes the emerging research area of 3D cell culture in microfluidic platforms with integrated detection schemes. Over the last several decades a central focus of cell culture has been the development of better in vivo mimics. This has led to the evolution from planar cell culture to cell culture on 3D scaffolds, and the incorporation of cell scaffolds into microfluidic devices. Specifically, this review explores the incorporation of suspension culture, hydrogels scaffolds, paper-based scaffolds, and fiber-based scaffolds into microfluidic platforms. In order to decrease analysis time, simplify sample preparation, monitor key signaling pathways involved in cell-to-cell communication or cell growth, and combat the limitations of sample volume/ dilution seen in traditional assays, researchers have also started to focus on integrating detection schemes into the cell culture devices. This review will highlight the work that has been performed towards combining these techniques and will discuss potential future directions. It is clear that microfluidic-based 3D cell culture coupled with quantitative analysis can greatly improve our ability to mimic and understand in vivo systems.
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Affiliation(s)
- Andre D Castiaux
- Department of Chemistry, Saint Louis University, 3501 Laclede Ave., St. Louis, MO 63103
| | - Dana M Spence
- Department of Biomedical Engineering, Institute for Quantitative Health Science & Engineering, Michigan State University, East Lansing, MI, 48824
| | - R Scott Martin
- Department of Chemistry, Saint Louis University, 3501 Laclede Ave., St. Louis, MO 63103
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24
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Liao W, Xu L, Wangrao K, Du Y, Xiong Q, Yao Y. Three-dimensional printing with biomaterials in craniofacial and dental tissue engineering. PeerJ 2019; 7:e7271. [PMID: 31328038 PMCID: PMC6622164 DOI: 10.7717/peerj.7271] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Accepted: 06/10/2019] [Indexed: 02/05/2023] Open
Abstract
With the development of technology, tissue engineering (TE) has been widely applied in the medical field. In recent years, due to its accuracy and the demands of solid freeform fabrication in TE, three-dimensional printing, also known as additive manufacturing (AM), has been applied for biological scaffold fabrication in craniofacial and dental regeneration. In this review, we have compared several types of AM techniques and summarized their advantages and limitations. The range of printable materials used in craniofacial and dental tissue includes all the biomaterials. Thus, basic and clinical studies were discussed in this review to present the application of AM techniques in craniofacial and dental tissue and their advances during these years, which might provide information for further AM studies in craniofacial and dental TE.
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Affiliation(s)
- Wen Liao
- Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China.,State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Lin Xu
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Kaijuan Wangrao
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Yu Du
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Qiuchan Xiong
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China.,Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Yang Yao
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China.,Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
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25
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Jenkins TL, Little D. Synthetic scaffolds for musculoskeletal tissue engineering: cellular responses to fiber parameters. NPJ Regen Med 2019; 4:15. [PMID: 31263573 PMCID: PMC6597555 DOI: 10.1038/s41536-019-0076-5] [Citation(s) in RCA: 98] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2018] [Accepted: 05/14/2019] [Indexed: 12/14/2022] Open
Abstract
Tissue engineering often uses synthetic scaffolds to direct cell responses during engineered tissue development. Since cells reside within specific niches of the extracellular matrix, it is important to understand how the matrix guides cell response and then incorporate this knowledge into scaffold design. The goal of this review is to review elements of cell-matrix interactions that are critical to informing and evaluating cellular response on synthetic scaffolds. Therefore, this review examines fibrous proteins of the extracellular matrix and their effects on cell behavior, followed by a discussion of the cellular responses elicited by fiber diameter, alignment, and scaffold porosity of two dimensional (2D) and three dimensional (3D) synthetic scaffolds. Variations in fiber diameter, alignment, and scaffold porosity guide stem cells toward different lineages. Cells generally exhibit rounded morphology on nanofibers, randomly oriented fibers, and low-porosity scaffolds. Conversely, cells exhibit elongated, spindle-shaped morphology on microfibers, aligned fibers, and high-porosity scaffolds. Cells migrate with higher velocities on nanofibers, aligned fibers, and high-porosity scaffolds but migrate greater distances on microfibers, aligned fibers, and highly porous scaffolds. Incorporating relevant biomimetic factors into synthetic scaffolds destined for specific tissue application could take advantage of and further enhance these responses.
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Affiliation(s)
- Thomas Lee Jenkins
- Department of Biomedical Engineering, Purdue University, West Lafayette, IN 47907 USA
| | - Dianne Little
- Department of Biomedical Engineering, Purdue University, West Lafayette, IN 47907 USA
- Department of Basic Medical Sciences, Purdue University, West Lafayette, IN 47907 USA
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26
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Hatton J, Davis GR, Mourad AHI, Cherupurakal N, Hill RG, Mohsin S. Fabrication of Porous Bone Scaffolds Using Alginate and Bioactive Glass. J Funct Biomater 2019; 10:jfb10010015. [PMID: 30836701 PMCID: PMC6462929 DOI: 10.3390/jfb10010015] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Revised: 01/10/2019] [Accepted: 01/31/2019] [Indexed: 12/27/2022] Open
Abstract
Porous composite scaffold using an alginate and bioactive glass ICIE16M was synthesized by a simple freeze-drying technique. The scaffold was characterized using compression testing, Fourier-transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), X-ray diffraction (XRD), X-ray microtomography (XMT) and scanning electron microscopy (SEM). The bioactivity of the scaffold was evaluated by its ability to form apatite on its surface in simulated body fluid (SBF). The data collected showed evidence that the novel material produced had an appropriate pore size for osteoconduction, with an average pore size of 110 µm and maximum pore size of 309 µm. Statistical analysis confirmed that the glass filler significantly (P < 0.05) increased the collapse yield of the scaffolds compared with pure alginate scaffolds. The ICIE16M glass had an amorphous structure, favorable for bioactivity.
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Affiliation(s)
- Jonathan Hatton
- Dental Physical Sciences Unit, Institute of Dentistry, Barts & The London School of Medicine and Dentistry, Queen Mary University of London, London, E1 4NS, UK.
| | - Graham Roy Davis
- Dental Physical Sciences Unit, Institute of Dentistry, Barts & The London School of Medicine and Dentistry, Queen Mary University of London, London, E1 4NS, UK.
| | - Abdel-Hamid I Mourad
- Department of Mechanical Engineering, College of Engineering, UAEU Al Ain, 15551, UAE.
| | | | - Robert G Hill
- Dental Physical Sciences Unit, Institute of Dentistry, Barts & The London School of Medicine and Dentistry, Queen Mary University of London, London, E1 4NS, UK.
| | - Sahar Mohsin
- Dental Physical Sciences Unit, Institute of Dentistry, Barts & The London School of Medicine and Dentistry, Queen Mary University of London, London, E1 4NS, UK.
- Department of Anatomy, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, 17666, UAE.
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27
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Im SH, Park SJ, Chung JJ, Jung Y, Kim SH. Creation of polylactide vascular scaffolds with high compressive strength using a novel melt-tube drawing method. POLYMER 2019. [DOI: 10.1016/j.polymer.2019.01.067] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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28
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Yi B, Shen Y, Tang H, Wang X, Li B, Zhang Y. Stiffness of Aligned Fibers Regulates the Phenotypic Expression of Vascular Smooth Muscle Cells. ACS APPLIED MATERIALS & INTERFACES 2019; 11:6867-6880. [PMID: 30676736 DOI: 10.1021/acsami.9b00293] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Electrospun uniaxially aligned ultrafine fibers show great promise in constructing vascular grafts mimicking the anisotropic architecture of native blood vessels. However, understanding how the stiffness of aligned fibers would impose influences on the functionality of vascular cells has yet to be explored. The present study aimed to explore the stiffness effects of electrospun aligned fibrous substrates (AFSs) on phenotypic modulation in vascular smooth muscle cells (SMCs). A stable jet coaxial electrospinning (SJCES) method was employed to generate highly aligned ultrafine fibers of poly(l-lactide- co-caprolactone)/poly(l-lactic acid) (PLCL/PLLA) in shell-core configuration with a remarkably varying stiffness region from 0.09 to 13.18 N/mm. We found that increasing AFS stiffness had no significant influence on the cellular shape and orientation along the fiber direction with the cultured human umbilical artery SMCs (huaSMCs) but inhibited the cell adhesion rate, promoted cell proliferation and migration, and especially enhanced the F-actin fiber assembly in the huaSMCs. Notably, higher fiber stiffness resulted in significant downregulation of contractile markers like alpha-smooth muscle actin (α-SMA), smooth muscle myosin heavy chain, calponin, and desmin, whereas upregulated the gene expression of pathosis-associated osteopontin ( OPN) in the huaSMCs. These results allude to the phenotype of huaSMCs on stiffer AFSs being miserably modulated into a proliferative and pathological state. Consequently, it adversely affected the proliferation and migration behavior of human umbilical vein endothelial cells as well. Moreover, stiffer AFSs also revealed to incur significant upregulation of inflammatory gene expression, such as interleukin-6 ( IL-6), monocyte chemoattractant protein-1 ( MCP-1), and intercellular adhesion molecule-1 ( ICAM-1), in the huaSMCs. This study stresses that although electrospun aligned fibers are capable of modulating native-like oriented cell morphology and even desired phenotype realization or transition, they might not always direct cells into correct functionality. The integrated fiber stiffness underlying is thereby a critical parameter to consider in engineering structurally anisotropic tissue-engineered vascular grafts to ultimately achieve long-term patency.
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Affiliation(s)
| | | | | | | | - Bin Li
- Department of Orthopaedics , The First Affiliated Hospital of Soochow University , Suzhou 215006 , China
- Orthopaedic Institute, Medical College , Soochow University , Suzhou 215007 , China
- China Orthopaedic Regenerative Medicine Group (CORMed) , Hangzhou 310058 , China
| | - Yanzhong Zhang
- China Orthopaedic Regenerative Medicine Group (CORMed) , Hangzhou 310058 , China
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29
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Fuchs A, Youssef A, Seher A, Hochleitner G, Dalton PD, Hartmann S, Brands RC, Müller-Richter UDA, Linz C. Medical-grade polycaprolactone scaffolds made by melt electrospinning writing for oral bone regeneration - a pilot study in vitro. BMC Oral Health 2019; 19:28. [PMID: 30709394 PMCID: PMC6359770 DOI: 10.1186/s12903-019-0717-5] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Accepted: 01/21/2019] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND The spectrum of indications for the use of membranes and scaffolds in the field of oral and maxillofacial surgery includes, amongst others, guided bone regeneration (GBR). Currently available membrane systems face certain disadvantages such as difficult clinical handling, inconsistent degradation, undirected cell growth and a lack of stability that often complicate their application. Therefore, new membranes which can overcome these issues are of great interest in this field. METHODS In this pilot study, we investigated polycaprolactone (PCL) scaffolds intended to enhance oral wound healing by means of melt electrospinning writing (MEW), which allowed for three-dimensional (3D) printing of micron scale fibers and very exact fiber placement. A singular set of box-shaped scaffolds of different sizes consisting of medical-grade PCL was examined and the scaffolds' morphology was evaluated via scanning electron microscopy (SEM). Each prototype sample with box sizes of 225 μm, 300 μm, 375 μm, 450 μm and 500 μm was assessed for cytotoxicity and cell growth by seeding each scaffold with human osteoblast-like cell line MG63. RESULTS All scaffolds demonstrated good cytocompatibility according to cell viability, protein concentration, and cell number. SEM analysis revealed an exact fiber placement of the MEW scaffolds and the growth of viable MG63 cells on them. For the examined box-shaped scaffolds with pore sizes between 225 μm and 500 μm, a preferred box size for initial osteoblast attachment could not be found. CONCLUSIONS These well-defined 3D scaffolds consisting of medical-grade materials optimized for cell attachment and cell growth hold the key to a promising new approach in GBR in oral and maxillofacial surgery.
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Affiliation(s)
- A. Fuchs
- Department of Oral and Maxillofacial Plastic Surgery, University Hospital Würzburg, Pleicherwall 2, 97080 Würzburg, Germany
| | - A. Youssef
- Department for Functional Materials in Medicine and Dentistry, University Hospital Würzburg, Pleicherwall 2, 97080 Würzburg, Germany
| | - A. Seher
- Department of Oral and Maxillofacial Plastic Surgery, University Hospital Würzburg, Pleicherwall 2, 97080 Würzburg, Germany
| | - G. Hochleitner
- Department for Functional Materials in Medicine and Dentistry, University Hospital Würzburg, Pleicherwall 2, 97080 Würzburg, Germany
| | - P. D. Dalton
- Department for Functional Materials in Medicine and Dentistry, University Hospital Würzburg, Pleicherwall 2, 97080 Würzburg, Germany
| | - S. Hartmann
- Department of Oral and Maxillofacial Plastic Surgery, University Hospital Würzburg, Pleicherwall 2, 97080 Würzburg, Germany
| | - R. C. Brands
- Department of Oral and Maxillofacial Plastic Surgery, University Hospital Würzburg, Pleicherwall 2, 97080 Würzburg, Germany
| | - U. D. A. Müller-Richter
- Department of Oral and Maxillofacial Plastic Surgery, University Hospital Würzburg, Pleicherwall 2, 97080 Würzburg, Germany
| | - C. Linz
- Department of Oral and Maxillofacial Plastic Surgery, University Hospital Würzburg, Pleicherwall 2, 97080 Würzburg, Germany
- Interdisciplinary Center for Clinical Research, University Hospital Würzburg, Josef-Schneider-Straße 2, 97070 Würzburg, Germany
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Coenen AMJ, Bernaerts KV, Harings JAW, Jockenhoevel S, Ghazanfari S. Elastic materials for tissue engineering applications: Natural, synthetic, and hybrid polymers. Acta Biomater 2018; 79:60-82. [PMID: 30165203 DOI: 10.1016/j.actbio.2018.08.027] [Citation(s) in RCA: 87] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Revised: 08/03/2018] [Accepted: 08/21/2018] [Indexed: 02/08/2023]
Abstract
Elastin and collagen are the two main components of elastic tissues and provide the tissue with elasticity and mechanical strength, respectively. Whereas collagen is adequately produced in vitro, production of elastin in tissue-engineered constructs is often inadequate when engineering elastic tissues. Therefore, elasticity has to be artificially introduced into tissue-engineered scaffolds. The elasticity of scaffold materials can be attributed to either natural sources, when native elastin or recombinant techniques are used to provide natural polymers, or synthetic sources, when polymers are synthesized. While synthetic elastomers often lack the biocompatibility needed for tissue engineering applications, the production of natural materials in adequate amounts or with proper mechanical strength remains a challenge. However, combining natural and synthetic materials to create hybrid components could overcome these issues. This review explains the synthesis, mechanical properties, and structure of native elastin as well as the theories on how this extracellular matrix component provides elasticity in vivo. Furthermore, current methods, ranging from proteins and synthetic polymers to hybrid structures that are being investigated for providing elasticity to tissue engineering constructs, are comprehensively discussed. STATEMENT OF SIGNIFICANCE Tissue engineered scaffolds are being developed as treatment options for malfunctioning tissues throughout the body. It is essential that the scaffold is a close mimic of the native tissue with regards to both mechanical and biological functionalities. Therefore, the production of elastic scaffolds is of key importance to fabricate tissue engineered scaffolds of the elastic tissues such as heart valves and blood vessels. Combining naturally derived and synthetic materials to reach this goal proves to be an interesting area where a highly tunable material that unites mechanical and biological functionalities can be obtained.
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Affiliation(s)
- Anna M J Coenen
- Aachen-Maastricht Institute for Biobased Materials (AMIBM), Faculty of Science and Engineering, Maastricht University, Brightlands Chemelot Campus, Urmonderbaan 22, 6167 RD Geleen, The Netherlands
| | - Katrien V Bernaerts
- Aachen-Maastricht Institute for Biobased Materials (AMIBM), Faculty of Science and Engineering, Maastricht University, Brightlands Chemelot Campus, Urmonderbaan 22, 6167 RD Geleen, The Netherlands
| | - Jules A W Harings
- Aachen-Maastricht Institute for Biobased Materials (AMIBM), Faculty of Science and Engineering, Maastricht University, Brightlands Chemelot Campus, Urmonderbaan 22, 6167 RD Geleen, The Netherlands
| | - Stefan Jockenhoevel
- Aachen-Maastricht Institute for Biobased Materials (AMIBM), Faculty of Science and Engineering, Maastricht University, Brightlands Chemelot Campus, Urmonderbaan 22, 6167 RD Geleen, The Netherlands; Department of Biohybrid & Medical Textiles (BioTex), AME-Helmholtz Institute for Biomedical Engineering, RWTH Aachen University, Forckenbeckstraβe 55, 52072 Aachen, Germany
| | - Samaneh Ghazanfari
- Aachen-Maastricht Institute for Biobased Materials (AMIBM), Faculty of Science and Engineering, Maastricht University, Brightlands Chemelot Campus, Urmonderbaan 22, 6167 RD Geleen, The Netherlands.
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Amokrane G, Falentin-Daudré C, Ramtani S, Migonney V. A Simple Method to Functionalize PCL Surface by Grafting Bioactive Polymers Using UV Irradiation. Ing Rech Biomed 2018. [DOI: 10.1016/j.irbm.2018.07.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Hrynevich A, Elçi BŞ, Haigh JN, McMaster R, Youssef A, Blum C, Blunk T, Hochleitner G, Groll J, Dalton PD. Dimension-Based Design of Melt Electrowritten Scaffolds. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2018; 14:e1800232. [PMID: 29707891 DOI: 10.1002/smll.201800232] [Citation(s) in RCA: 96] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Revised: 03/02/2018] [Indexed: 05/17/2023]
Abstract
The electrohydrodynamic stabilization of direct-written fluid jets is explored to design and manufacture tissue engineering scaffolds based on their desired fiber dimensions. It is demonstrated that melt electrowriting can fabricate a full spectrum of various fibers with discrete diameters (2-50 µm) using a single nozzle. This change in fiber diameter is digitally controlled by combining the mass flow rate to the nozzle with collector speed variations without changing the applied voltage. The greatest spectrum of fiber diameters was achieved by the simultaneous alteration of those parameters during printing. The highest placement accuracy could be achieved when maintaining the collector speed slightly above the critical translation speed. This permits the fabrication of medical-grade poly(ε-caprolactone) into complex multimodal and multiphasic scaffolds, using a single nozzle in a single print. This ability to control fiber diameter during printing opens new design opportunities for accurate scaffold fabrication for biomedical applications.
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Affiliation(s)
- Andrei Hrynevich
- Department of Functional Materials in Medicine and Dentistry and Bavarian Polymer Institute, University Hospital of Würzburg, Pleicherwall 2, 97070, Würzburg, Germany
| | - Bilge Ş Elçi
- Department of Functional Materials in Medicine and Dentistry and Bavarian Polymer Institute, University Hospital of Würzburg, Pleicherwall 2, 97070, Würzburg, Germany
| | - Jodie N Haigh
- Department of Functional Materials in Medicine and Dentistry and Bavarian Polymer Institute, University Hospital of Würzburg, Pleicherwall 2, 97070, Würzburg, Germany
| | - Rebecca McMaster
- Department of Trauma, Hand, Plastic and Reconstructive Surgery, University Hospital of Würzburg, Oberdürrbacher Str. 6, 97080, Würzburg, Germany
- Institute of Health and Biomedical Innovation, Queensland University of Technology, 60 Musk Avenue, 4059, Kelvin Grove, Australia
| | - Almoatazbellah Youssef
- Department of Functional Materials in Medicine and Dentistry and Bavarian Polymer Institute, University Hospital of Würzburg, Pleicherwall 2, 97070, Würzburg, Germany
| | - Carina Blum
- Department of Functional Materials in Medicine and Dentistry and Bavarian Polymer Institute, University Hospital of Würzburg, Pleicherwall 2, 97070, Würzburg, Germany
| | - Torsten Blunk
- Department of Trauma, Hand, Plastic and Reconstructive Surgery, University Hospital of Würzburg, Oberdürrbacher Str. 6, 97080, Würzburg, Germany
| | - Gernot Hochleitner
- Department of Functional Materials in Medicine and Dentistry and Bavarian Polymer Institute, University Hospital of Würzburg, Pleicherwall 2, 97070, Würzburg, Germany
| | - Jürgen Groll
- Department of Functional Materials in Medicine and Dentistry and Bavarian Polymer Institute, University Hospital of Würzburg, Pleicherwall 2, 97070, Würzburg, Germany
| | - Paul D Dalton
- Department of Functional Materials in Medicine and Dentistry and Bavarian Polymer Institute, University Hospital of Würzburg, Pleicherwall 2, 97070, Würzburg, Germany
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Hosseini V, Evrova O, Hoerstrup SP, Vogel V. A Simple Modification Method to Obtain Anisotropic and Porous 3D Microfibrillar Scaffolds for Surgical and Biomedical Applications. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2018; 14:1702650. [PMID: 29205905 DOI: 10.1002/smll.201702650] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Revised: 10/04/2017] [Indexed: 06/07/2023]
Abstract
In native tissues, cellular organization is predominantly anisotropic. Yet, it remains a challenge to engineer anisotropic scaffolds that promote anisotropic cellular organization at macroscopic length scales. To overcome this challenge, an innovative, cheap and easy method to align clinically approved non-woven surgical microfibrillar scaffolds is presented. The method involves a three-step process of coating, unidirectional stretching of scaffolds after heating them above glass transition temperature, and cooling back to room temperature. Briefly, a polymer coating is applied to a non-woven mesh that results in a partial welding of randomly oriented microfibers at their intersection points. The coated scaffold is then heated above the glass transition temperature of the coating and the scaffold polymer. Subsequently, the coated scaffold is stretched to produce aligned and three dimentional (3D) porous fibrillar scaffolds. In a proof of concept study, a polyglycolic acid (PGA) micro-fibrillar scaffold was coated with poly(4-hydroxybutirate) (P4HB) acid and subsequently aligned. Fibroblasts were cultured in vitro within the scaffold and results showed an increase in cellular alignment along the direction of the PGA fibers. This method can be scaled up easily for industrial production of polymeric meshes or directly applied to small pieces of scaffolds at the point of care.
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Affiliation(s)
- Vahid Hosseini
- Laboratory of Applied Mechanobiology, Institute of Translational Medicine, Department of Health Science and Technology, ETH, CH-8093, Zurich, Switzerland
| | - Olivera Evrova
- Laboratory of Applied Mechanobiology, Institute of Translational Medicine, Department of Health Science and Technology, ETH, CH-8093, Zurich, Switzerland
- Division of Plastic Surgery and Hand Surgery, University Hospital Zurich, CH-8091, Zurich, Switzerland
| | - Simon P Hoerstrup
- Institute for Regenerative Medicine (IREM), University of Zurich, CH-8091, Zurich, Switzerland
- Wyss Translational Center Zurich, University of Zurich and ETH Zürich, CH-8091, Switzerland
| | - Viola Vogel
- Laboratory of Applied Mechanobiology, Institute of Translational Medicine, Department of Health Science and Technology, ETH, CH-8093, Zurich, Switzerland
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Pangesty AI, Arahira T, Todo M. Development and characterization of hybrid tubular structure of PLCL porous scaffold with hMSCs/ECs cell sheet. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2017; 28:165. [PMID: 28914404 DOI: 10.1007/s10856-017-5985-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Accepted: 09/04/2017] [Indexed: 06/07/2023]
Abstract
Tissue engineering offers an alternate approach to providing vascular graft with potential to grow similar with native tissue by seeding autologous cells into biodegradable scaffold. In this study, we developed a combining technique by layering a sheet of cells onto a porous tubular scaffold. The cell sheet prepared from co-culturing human mesenchymal stem cells (hMSCs) and endothelial cells (ECs) were able to infiltrate through porous structure of the tubular poly (lactide-co-caprolactone) (PLCL) scaffold and further proliferated on luminal wall within a week of culture. Moreover, the co-culture cell sheet within the tubular scaffold has demonstrated a faster proliferation rate than the monoculture cell sheet composed of MSCs only. We also found that the co-culture cell sheet expressed a strong angiogenic marker, including vascular endothelial growth factor (VEGF) and its receptor (VEGFR), as compared with the monoculture cell sheet within 2 weeks of culture, indicating that the co-culture system could induce differentiation into endothelial cell lineage. This combined technique would provide cellularization and maturation of vascular construct in relatively short period with a strong expression of angiogenic properties.
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Affiliation(s)
- Azizah Intan Pangesty
- Department of Molecular and Material Science, Interdisciplinary Graduate School of Engineering Science, Kyushu University, Kasuga, Fukuoka, 816-8580, Japan
| | | | - Mitsugu Todo
- Research Institute for Applied Mechanics, Kyushu University, Kasuga, Fukuoka, 816-8580, Japan.
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Jang BS, Cheon JY, Kim SH, Park WH. Small diameter vascular graft with fibroblast cells and electrospun poly (L-lactide-co-ε-caprolactone) scaffolds: Cell Matrix Engineering. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2017; 29:942-959. [PMID: 28816087 DOI: 10.1080/09205063.2017.1367635] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Electrospun scaffolds have been widely used in tissue engineering due to their similar structure to native extracellular matrices (ECM). However, one of the obstacles limiting the application of electrospun scaffolds for tissue engineering is the nano-sized pores, which inhibit cell infiltration into the scaffolds. To overcome this limitation, we approached to make layers which are consisted of cells onto the electrospun sheet and then tubular structure was constructed by rolling. We called this as 'Cell Matrix Engineering' because the electrospun sheets were combined with the cells to form one matrix. They maintained 3-D tubular structures well and their diameters were 4.1 mm (±0.1 mm). We compared the mechanical and biological properties of various vascular grafts with the electrospun PLCL sheets of different thickness. In these experiments, the vascular graft made with thin sheets showed a better cell proliferation and attachment than the grafts made with thick sheets because the thin layer allowed for more efficient mass transfer and better permeability than the thick layer. Culturing under physiological pulsatile flow condition was demonstrated in this work. These dynamic conditions provided the improved mass transport and aerobic cell metabolism. Therefore, the Cell Matrix Engineered vascular graft holds a great promise for clinical applications by overcoming the limitations associated with conventional scaffolds.
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Affiliation(s)
- Bong Seok Jang
- a Department of Advanced Organic Materials and Textile System Engineering , Chungnam National University , Daejeon , Korea
| | - Ja Young Cheon
- a Department of Advanced Organic Materials and Textile System Engineering , Chungnam National University , Daejeon , Korea
| | - Soo Hyun Kim
- b Biomaterials Research Center , Korea Institute of Science and Technology , Seoul , Korea.,c KU-KIST Graduate School of Converging Science and Technology , Korea University , Seoul , Korea
| | - Won Ho Park
- a Department of Advanced Organic Materials and Textile System Engineering , Chungnam National University , Daejeon , Korea
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Akmammedov R, Huysal M, Isik S, Senel M. Preparation and characterization of novel chitosan/zeolite scaffolds for bone tissue engineering applications. INT J POLYM MATER PO 2017. [DOI: 10.1080/00914037.2017.1309539] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Rovshen Akmammedov
- Faculty of Engineering, Department of Bioengineering, Engineering-Technological University of Turkmenistan named after Oguz han, Ashkabat, Turkmenistan
| | - Merve Huysal
- Biotechnology Research Lab, EMC Technology Inc., Istanbul, Turkey
| | - Sevim Isik
- Department of Medical Biology, Faculty of Medicine, Fatih University, Istanbul, Turkey
| | - Mehmet Senel
- Biotechnology Research Lab, EMC Technology Inc., Istanbul, Turkey
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37
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Pan Y, Zhou X, Wei Y, Zhang Q, Wang T, Zhu M, Li W, Huang R, Liu R, Chen J, Fan G, Wang K, Kong D, Zhao Q. Small-diameter hybrid vascular grafts composed of polycaprolactone and polydioxanone fibers. Sci Rep 2017; 7:3615. [PMID: 28620160 PMCID: PMC5472623 DOI: 10.1038/s41598-017-03851-1] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2016] [Accepted: 05/05/2017] [Indexed: 01/06/2023] Open
Abstract
Electrospun polycaprolactone (PCL) vascular grafts showed good mechanical properties and patency. However, the slow degradation of PCL limited vascular regeneration in the graft. Polydioxanone (PDS) is a biodegradable polymer with high mechanical strength and moderate degradation rate in vivo. In this study, a small-diameter hybrid vascular graft was prepared by co-electrospinning PCL and PDS fibers. The incorporation of PDS improves mechanical properties, hydrophilicity of the hybrid grafts compared to PCL grafts. The in vitro/vivo degradation assay showed that PDS fibers completely degraded within 12 weeks, which resulted in the increased pore size of PCL/PDS grafts. The healing characteristics of the hybrid grafts were evaluated by implantation in rat abdominal aorta replacement model for 1 and 3 months. Color Doppler ultrasound demonstrated PCL/PDS grafts had good patency, and did not show aneurysmal dilatation. Immunofluorescence staining showed the coverage of endothelial cells (ECs) was significantly enhanced in PCL/PDS grafts due to the improved surface hydrophilicity. The degradation of PDS fibers provided extra space, which facilitated vascular smooth muscle regeneration within PCL/PDS grafts. These results suggest that the hybrid PCL/PDS graft may be a promising candidate for the small-diameter vascular grafts.
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Affiliation(s)
- Yiwa Pan
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Xin Zhou
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Yongzhen Wei
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Qiuying Zhang
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Ting Wang
- Urban Transport Emission Control Research Centre, College of Environmental Science and Engineering, Nankai University, Tianjin, 300071, China
| | - Meifeng Zhu
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Wen Li
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Rui Huang
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Ruming Liu
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Jingrui Chen
- Center for Research and Development of Chinese Medicine, Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, China
| | - Guanwei Fan
- Center for Research and Development of Chinese Medicine, Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, China
| | - Kai Wang
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin, 300071, China.
| | - Deling Kong
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Qiang Zhao
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin, 300071, China.
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Yin L, Yang S, He M, Chang Y, Wang K, Zhu Y, Liu Y, Chang Y, Yu Z. Physicochemical and biological characteristics of BMP-2/IGF-1-loaded three-dimensional coaxial electrospun fibrous membranes for bone defect repair. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2017; 28:94. [PMID: 28500409 DOI: 10.1007/s10856-017-5898-3] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2016] [Accepted: 04/26/2017] [Indexed: 06/07/2023]
Abstract
Coaxial electrospun fibrous membranes show favorable mechanical properties for use in guided bone regeneration (GBR). We used coaxial electrospinning technology to fabricate three-dimensional nanofiber membranes loaded with BMP-2 and IGF-1, and assessed the physicochemical and biological properties of these novel membranes in vitro. We fabricated four experimental groups of BMP-2/IGF-1/BSA-loaded membranes with different flow ratios (shell/core). Membrane characteristics were assessed by scanning and transmission electron microscopy, and laser confocal microscopy. Physicochemical and drug release properties were evaluated based on contact angle, mechanical property testing, X-ray diffraction analysis, and ELISA. The membranes were seeded with bone marrow-derived mesenchymal stem cells (BMMSCs) to estimate their biological properties based on cell viability and alkaline phosphatase (ALP) activity. The four membrane groups presented uniform diameters and core-shell structures. Acceleration of the shell solution flow rate increased the contact angle and mechanical properties of the fibrous membrane, while dual-factor addition did not impact fiber structure. Each drug-loaded membrane showed a gradually increasing release curve, with varying degrees of burst and sustained release. Compared to the other groups, the membranes with a core-shell flow ratio of 1:10 showed better drug-loading capacity and sustained release performance, higher biological properties and good barrier function. Optimal parameters were chosen based on the physical and chemical characteristics and biological properties of the membrane. Our results imply that the BMP-2/IGF-1/BSA-loaded coaxial electrospun fibrous membrane with optimum parameters is a suitable barrier membrane for GBR, and releases multiple factors promoting osteoconduction and osteoinduction.
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Affiliation(s)
- Lihua Yin
- Department of Oral Implantology, School/Hospital of Stomatology, Lanzhou University, 730000, Lanzhou, China
| | - Shaohua Yang
- School/Hospital of Stomatology, Lanzhou University, 730000, Lanzhou, China
| | - Miaomiao He
- School/Hospital of Stomatology, Lanzhou University, 730000, Lanzhou, China
| | - Yuchen Chang
- School/Hospital of Stomatology, Lanzhou University, 730000, Lanzhou, China
| | - Kaijuan Wang
- School/Hospital of Stomatology, Lanzhou University, 730000, Lanzhou, China
| | - Yidan Zhu
- School/Hospital of Stomatology, Lanzhou University, 730000, Lanzhou, China
| | - Yuhui Liu
- School/Hospital of Stomatology, Lanzhou University, 730000, Lanzhou, China
| | - Yaoren Chang
- School/Hospital of Stomatology, Lanzhou University, 730000, Lanzhou, China
| | - Zhanhai Yu
- Department of Oral Implantology, School/Hospital of Stomatology, Lanzhou University, 730000, Lanzhou, China.
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Zhang Y, Li XS, Guex AG, Liu SS, Müller E, Malini RI, Zhao HJ, Rottmar M, Maniura-Weber K, Rossi RM, Spano F. A compliant and biomimetic three-layered vascular graft for small blood vessels. Biofabrication 2017; 9:025010. [PMID: 28382923 DOI: 10.1088/1758-5090/aa6bae] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Engineering a small diameter vascular graft with mechanical and biological properties comparable to living tissues remains challenging. Often, current devices lead to thrombosis and unsatisfactory long-term patency as a result of poor blood compatibility and a mismatch between the mechanical properties of the living tissue and the implanted biomaterial. Addressing all these requirements is essential to produce scaffolds able to survive throughout the life of the patient. For this purpose, we fabricated a novel three-layered vascular graft by combining electrospinning and braiding. Mirroring the structure of human blood vessels, the proposed device is composed of three layers: the intima, the media, and the adventitia. The intima and media layers were obtained by sequentially electrospinning silk fibroin (SF) and poly(L-lactide-co-ε-caprolactone), with ratios selected to match the mechanical properties of the native tissue. For the outer layer, the adventitia, SF yarns were braided on top of the electrospun tubes to create a structure able to withstand high pressures. Compliance, Young's modulus and deformability of the obtained scaffold were similar to that of human blood vessels. Additionally, cytocompatibility of the two layers, media and intima, was assessed in vitro by analysing cell metabolic activity and proliferation of endothelial cells and smooth muscle cells, respectively. Furthermore, heparin functionalization of the scaffolds led to improved anticoagulant properties upon incubation in whole blood. The obtained results indicate a potential application of the herewith designed three-layered construct as a vascular graft for small diameter blood vessel engineering.
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Affiliation(s)
- Y Zhang
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, No. 199 Ren'ai Road, Industrial Park, Suzhou 215123, People's Republic of China
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He M, Jiang H, Wang R, Xie Y, Zhao C. Fabrication of metronidazole loaded poly (ε-caprolactone)/zein core/shell nanofiber membranes via coaxial electrospinning for guided tissue regeneration. J Colloid Interface Sci 2017; 490:270-278. [DOI: 10.1016/j.jcis.2016.11.062] [Citation(s) in RCA: 95] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Revised: 11/16/2016] [Accepted: 11/18/2016] [Indexed: 11/28/2022]
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Valencia RA, Montoya Y, Sánchez S, Ortiz IC, Hoyos LM, Bustamante J. Estudio in vitro de permeabilidad, porosidad y crecimiento celular en membranas electrohiladas para prótesis vasculares. REVISTA COLOMBIANA DE CARDIOLOGÍA 2017. [DOI: 10.1016/j.rccar.2016.05.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Xie Y, Guan Y, Kim SH, King MW. The mechanical performance of weft-knitted/electrospun bilayer small diameter vascular prostheses. J Mech Behav Biomed Mater 2016; 61:410-418. [DOI: 10.1016/j.jmbbm.2016.04.011] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2015] [Revised: 04/04/2016] [Accepted: 04/06/2016] [Indexed: 11/16/2022]
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Fukunishi T, Best CA, Sugiura T, Shoji T, Yi T, Udelsman B, Ohst D, Ong CS, Zhang H, Shinoka T, Breuer CK, Johnson J, Hibino N. Tissue-Engineered Small Diameter Arterial Vascular Grafts from Cell-Free Nanofiber PCL/Chitosan Scaffolds in a Sheep Model. PLoS One 2016; 11:e0158555. [PMID: 27467821 PMCID: PMC4965077 DOI: 10.1371/journal.pone.0158555] [Citation(s) in RCA: 131] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2016] [Accepted: 06/19/2016] [Indexed: 01/22/2023] Open
Abstract
Tissue engineered vascular grafts (TEVGs) have the potential to overcome the issues faced by existing small diameter prosthetic grafts by providing a biodegradable scaffold where the patient’s own cells can engraft and form functional neotissue. However, applying classical approaches to create arterial TEVGs using slow degrading materials with supraphysiological mechanical properties, typically results in limited host cell infiltration, poor remodeling, stenosis, and calcification. The purpose of this study is to evaluate the feasibility of novel small diameter arterial TEVGs created using fast degrading material. A 1.0mm and 5.0mm diameter TEVGs were fabricated with electrospun polycaprolactone (PCL) and chitosan (CS) blend nanofibers. The 1.0mm TEVGs were implanted in mice (n = 3) as an unseeded infrarenal abdominal aorta interposition conduit., The 5.0mm TEVGs were implanted in sheep (n = 6) as an unseeded carotid artery (CA) interposition conduit. Mice were followed with ultrasound and sacrificed at 6 months. All 1.0mm TEVGs remained patent without evidence of thrombosis or aneurysm formation. Based on small animal outcomes, sheep were followed with ultrasound and sacrificed at 6 months for histological and mechanical analysis. There was no aneurysm formation or calcification in the TEVGs. 4 out of 6 grafts (67%) were patent. After 6 months in vivo, 9.1 ± 5.4% remained of the original scaffold. Histological analysis of patent grafts demonstrated deposition of extracellular matrix constituents including elastin and collagen production, as well as endothelialization and organized contractile smooth muscle cells, similar to that of native CA. The mechanical properties of TEVGs were comparable to native CA. There was a significant positive correlation between TEVG wall thickness and CD68+ macrophage infiltration into the scaffold (R2 = 0.95, p = 0.001). The fast degradation of CS in our novel TEVG promoted excellent cellular infiltration and neotissue formation without calcification or aneurysm. Modulating host macrophage infiltration into the scaffold is a key to reducing excessive neotissue formation and stenosis.
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Affiliation(s)
- Takuma Fukunishi
- Department of Cardiac Surgery, Johns Hopkins University, Baltimore, MD, United States of America
| | - Cameron A. Best
- Tissue Engineering and Center for Cardiovascular and Pulmonary Research, Nationwide Children’s Hospital, Columbus, OH, United States of America
| | - Tadahisa Sugiura
- Tissue Engineering and Center for Cardiovascular and Pulmonary Research, Nationwide Children’s Hospital, Columbus, OH, United States of America
| | - Toshihiro Shoji
- Tissue Engineering and Center for Cardiovascular and Pulmonary Research, Nationwide Children’s Hospital, Columbus, OH, United States of America
| | - Tai Yi
- Tissue Engineering and Center for Cardiovascular and Pulmonary Research, Nationwide Children’s Hospital, Columbus, OH, United States of America
| | - Brooks Udelsman
- Yale University School of Medicine, New Haven, CT, United States of America
| | - Devan Ohst
- Nanofiber Solutions Inc, Columbus, OH, United States of America
| | - Chin Siang Ong
- Department of Cardiac Surgery, Johns Hopkins University, Baltimore, MD, United States of America
| | - Huaitao Zhang
- Department of Cardiac Surgery, Johns Hopkins University, Baltimore, MD, United States of America
| | - Toshiharu Shinoka
- Tissue Engineering and Center for Cardiovascular and Pulmonary Research, Nationwide Children’s Hospital, Columbus, OH, United States of America
| | - Christopher K. Breuer
- Tissue Engineering and Center for Cardiovascular and Pulmonary Research, Nationwide Children’s Hospital, Columbus, OH, United States of America
| | - Jed Johnson
- Nanofiber Solutions Inc, Columbus, OH, United States of America
| | - Narutoshi Hibino
- Department of Cardiac Surgery, Johns Hopkins University, Baltimore, MD, United States of America
- * E-mail:
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A new design for electrospinner collecting device facilitates the removal of small diameter tubular scaffolds and paves the way for tissue engineering of capillaries. Exp Cell Res 2016; 347:60-64. [PMID: 27448765 DOI: 10.1016/j.yexcr.2016.07.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2016] [Revised: 07/10/2016] [Accepted: 07/13/2016] [Indexed: 11/23/2022]
Abstract
Electrospinning is a technique widely used for tissue engineering. Despite hurdles, electrospun vascular tissue scaffolds has shown great promise in in vitro studies. One problem is the removal of tubular scaffolds from a electrospinning collection device with no unwanted crumpling or tearing, especially for small diameter scaffolds. To tackle this problem we designed a collection device for simple removal of the scaffold from the collector while no chemical pretreatment was required. The scaffolds fabricated on this collecting device maintained their tubular structure and showed favorable surface properties, mechanical strength and biocompatibility. The device offers a new opportunity for tissue engineering researchers to fabricate tubular scaffolds from materials which have not been possible to date and help them improve the quality of synthesized scaffolds.
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45
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Characterization and preparation of bioinspired resorbable conduits for vascular reconstruction. Macromol Res 2016. [DOI: 10.1007/s13233-016-4042-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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46
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Yanagawa F, Sugiura S, Kanamori T. Hydrogel microfabrication technology toward three dimensional tissue engineering. Regen Ther 2016; 3:45-57. [PMID: 31245472 PMCID: PMC6581842 DOI: 10.1016/j.reth.2016.02.007] [Citation(s) in RCA: 75] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2015] [Revised: 02/15/2016] [Accepted: 02/18/2016] [Indexed: 02/07/2023] Open
Abstract
The development of biologically relevant three-dimensional (3D) tissue constructs is essential for the alternative methods of organ transplantation in regenerative medicine, as well as the development of improved drug discovery assays. Recent technological advances in hydrogel microfabrication, such as micromolding, 3D bioprinting, photolithography, and stereolithography, have led to the production of 3D tissue constructs that exhibit biological functions with precise 3D microstructures. Furthermore, microfluidics technology has enabled the development of the perfusion culture of 3D tissue constructs with vascular networks. In this review, we present these hydrogel microfabrication technologies for the in vitro reconstruction and cultivation of 3D tissues. Additionally, we discuss current challenges and future perspectives of 3D tissue engineering.
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Affiliation(s)
- Fumiki Yanagawa
- Drug Assay Device Research Group, Biotechnology Research Institute for Drug Discovery, National Institute of Advanced Industrial Science and Technology (AIST), Central 5th, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
| | - Shinji Sugiura
- Drug Assay Device Research Group, Biotechnology Research Institute for Drug Discovery, National Institute of Advanced Industrial Science and Technology (AIST), Central 5th, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
| | - Toshiyuki Kanamori
- Drug Assay Device Research Group, Biotechnology Research Institute for Drug Discovery, National Institute of Advanced Industrial Science and Technology (AIST), Central 5th, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
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47
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Vascular Prostheses Based on Nanofibers from Aliphatic Copolyamide. Cardiovasc Eng Technol 2016; 7:78-86. [PMID: 26721466 DOI: 10.1007/s13239-015-0234-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2015] [Accepted: 07/06/2015] [Indexed: 10/22/2022]
Abstract
Tubular grafts based on nanofibers of copolymer of ε-caprolactam and hexamethylendiaminadipate were obtained by the electrospinning method. The strength of materials based on the dry nanofibers was 6.2 MPa with elongation at break of 133%, or 7.5 MPa and 299% in saline, respectively. The pressure value at which liquid started seeping through the tube wall was P = 10 kPa. Absence of cytotoxicity was proved, as well as adhesion and proliferation of mesenchymal stem cells on the surface. Tubes with inner diameter of 1 mm were tested in vivo in rat abdominal aorta. A layer of endothelial cells was shown to form on the inner side of the prosthesis after 30 days. There was no evidence of stenosis or dilatation of the prosthesis after 14 months with observation of endothelial and subendothelial layers.
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Zhang LH, Duan XP, Yan X, Yu M, Ning X, Zhao Y, Long YZ. Recent advances in melt electrospinning. RSC Adv 2016. [DOI: 10.1039/c6ra09558e] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
With the emergence of one-dimensional (1D) functional nanomaterials and their promising applications, electrospinning (e-spinning) technology and electrospun (e-spun) ultrathin fibers have been widely explored.
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Affiliation(s)
- Li-Hua Zhang
- Collaborative Innovation Center for Nanomaterials & Optoelectronic Devices
- College of Physics
- Qingdao University
- Qingdao 266071
- China
| | - Xiao-Peng Duan
- Collaborative Innovation Center for Nanomaterials & Optoelectronic Devices
- College of Physics
- Qingdao University
- Qingdao 266071
- China
| | - Xu Yan
- Collaborative Innovation Center for Nanomaterials & Optoelectronic Devices
- College of Physics
- Qingdao University
- Qingdao 266071
- China
| | - Miao Yu
- Collaborative Innovation Center for Nanomaterials & Optoelectronic Devices
- College of Physics
- Qingdao University
- Qingdao 266071
- China
| | - Xin Ning
- Industrial Research Institute of Nonwovens & Technical Textiles
- College of Textiles & Clothing
- Qingdao University
- Qingdao 266071
- China
| | - Yong Zhao
- School of Chemistry & Environment
- Beihang University
- Beijing 100191
- China
| | - Yun-Ze Long
- Collaborative Innovation Center for Nanomaterials & Optoelectronic Devices
- College of Physics
- Qingdao University
- Qingdao 266071
- China
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Effect of Different Manufacturing Methods on the Conflict between Porosity and Mechanical Properties of Spiral and Porous Polyethylene Terephthalate/Sodium Alginate Bone Scaffolds. MATERIALS 2015; 8:8768-8779. [PMID: 28793744 PMCID: PMC5458857 DOI: 10.3390/ma8125488] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/16/2015] [Revised: 12/03/2015] [Accepted: 12/07/2015] [Indexed: 11/16/2022]
Abstract
In order to solve the incompatibility between high porosity and mechanical properties, this study fabricates bone scaffolds by combining braids and sodium alginate (SA) membranes. Polyethylene terephthalate (PET) plied yarns are braided into hollow, porous three dimensional (3D) PET braids, which are then immersed in SA solution, followed by cross-linking with calcium chloride (CaCl₂) and drying, to form PET bone scaffolds. Next, SA membranes are rolled and then inserted into the braids to form the spiral and porous PET/SA bone scaffolds. Samples are finally evaluated for surface observation, porosity, water contact angle, compressive strength, and MTT assay. The test results show that the PET bone scaffolds and PET/SA bone scaffolds both have good hydrophilicity. An increasing number of layers and an increasing CaCl₂ concentration cause the messy, loose surface structure to become neat and compact, which, in turn, decreases the porosity and increases the compressive strength. The MTT assay results show that the cell viability of differing SA membranes is beyond 100%, indicating that the PET/SA bone scaffolds containing SA membranes are biocompatible for cell attachment and proliferation.
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50
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Nasonova MV, Glushkova TV, Borisov VV, Velikanova EA, Burago AY, Kudryavtseva YA. Biocompatibility and Structural Features of Biodegradable Polymer Scaffolds. Bull Exp Biol Med 2015; 160:134-40. [PMID: 26608377 DOI: 10.1007/s10517-015-3114-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2014] [Indexed: 11/28/2022]
Abstract
We performed a comparative analysis of physicochemical properties and biocompatibility of scaffolds of different composition on the basis of biodegradable polymers fabricated by casting and electrospinning methods. For production of polyhydroxyalkanoate-based scaffolds by electrospinning method, the optimal concentration of the polymer was 8-10%. Fiber diameter and properties of the scaffold produced by electrospinning method depended on polymer composition. Addition of polycaprolactone increased elasticity of the scaffolds. Bio- and hemocompatibility of the scaffolds largely depended on the composition formulation and method of scaffold fabrication. Polylactide introduced into the composition of polyhydroxybutyrate-oxyvalerate scaffolds accelerated degradation and increased adhesive properties of the scaffolds.
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Affiliation(s)
- M V Nasonova
- Research Institute for Complex Issues of Cardiovascular Diseases, Siberian Division of the Russian Academy of Medical Sciences, Kemerovo, Russia.
| | - T V Glushkova
- Research Institute for Complex Issues of Cardiovascular Diseases, Siberian Division of the Russian Academy of Medical Sciences, Kemerovo, Russia
| | - V V Borisov
- Research Institute for Complex Issues of Cardiovascular Diseases, Siberian Division of the Russian Academy of Medical Sciences, Kemerovo, Russia
| | - E A Velikanova
- Research Institute for Complex Issues of Cardiovascular Diseases, Siberian Division of the Russian Academy of Medical Sciences, Kemerovo, Russia
| | - A Yu Burago
- Research Institute for Complex Issues of Cardiovascular Diseases, Siberian Division of the Russian Academy of Medical Sciences, Kemerovo, Russia
| | - Yu A Kudryavtseva
- Research Institute for Complex Issues of Cardiovascular Diseases, Siberian Division of the Russian Academy of Medical Sciences, Kemerovo, Russia
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