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Ma RX, Li RF, Deng XQ, Qiao RQ, Li JK, Song KX, Ji SL, Hu YC. Repair of tendons treated with peracetic acid-ethanol and gamma irradiation by EDC combined with NHS: a morphological, biochemical and biomechanical study in vitro. Cell Tissue Bank 2024; 25:427-442. [PMID: 36797536 DOI: 10.1007/s10561-023-10080-6] [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: 11/23/2022] [Accepted: 02/04/2023] [Indexed: 02/18/2023]
Abstract
The purpose of this study was to investigate whether 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide (EDC) combined with n-hydroxysuccinimide (NHS) can repair tendon damage caused by peracetic acid-ethanol and gamma irradiation sterilization. The semitendinosus tendons of 15 New Zealand white rabbits were selected as experimental materials, and the tendons were sterilized in a solution containing 1% (v/w) peracetic acid and 24% (v/w) ethanol. After 15 kGy gamma irradiation sterilization, the tendons were randomly divided into three groups (n = 10). The tendons were repaired with EDCs of 0, 2.5 and 5 mM combined with 5 mM NHS for 6 h, the tendons were temporarily stored at - 80 ± °C. The arrangement and spatial structure of collagen fibers were observed by light microscopy and scanning electron microscopy, the collagen type and collagen crimp period were observed under a polarizing microscope, and the collagen fibril diameter and its distribution were measured by transmission electron microscopy, from which the collagen fibril index and mass average diameter were calculated. The resistance of collagen to enzymolysis was detected by the free hydroxyproline test, and tensile fracture and cyclic loading tests of each group of tendons were carried out, from which the elastic modulus, maximum stress, maximum strain, strain energy density and cyclic creep strain were calculated. The obtained results showed that the gap between loose collagen fibers in the 0 mM control group was wider, the parallel arrangement of tendons in the 2.5 and 5 mM groups was more uniform and regular and the fiber space decreased, the crimp period in the 5 mM group was lower than that in the 0 mM group (P < 0.05), and the concentration of hydroxyproline in the 5 mM group (711.64 ± 77.95 μg/g) was better than that in the control group (1150.57 ± 158.75 μg/g). The elastic modulus of the 5 mM group (424.73 ± 150.96 MPa) was better than that of the 0 mM group (179.09 ± 37.14 MPa). Our results show that EDC combined with NHS can repair damaged tendons after peracetic acid-ethanol and gamma radiation treatment, and 5 mM EDC has better morphological performance, anti-enzymolysis ability and biomechanical properties than 2.5 mM EDC.
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Affiliation(s)
- Rong-Xing Ma
- Department of Bone and Soft Tissue Oncology, Tianjin Hospital, 406 Jiefang Southern Road, Tianjin, 300211, China
- Graduate School, Tianjin Medical University, Tianjin, China
| | - Rui-Feng Li
- Graduate School, Tianjin Medical University, Tianjin, China
| | | | - Rui-Qi Qiao
- Graduate School, Tianjin Medical University, Tianjin, China
| | - Ji-Kai Li
- Graduate School, Tianjin Medical University, Tianjin, China
| | - Kun-Xiu Song
- Department of Hand and Microsurgery, Binzhou Medical University Hospital, Binzhou, Shandong Province, China
| | - Shao-Lin Ji
- Shandong Provincial Third Hospital, Shandong University, Jinan, Shandong Province, China
| | - Yong-Cheng Hu
- Department of Bone and Soft Tissue Oncology, Tianjin Hospital, 406 Jiefang Southern Road, Tianjin, 300211, China.
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2
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Vaknin A, Grossman A, Durham ND, Lupovitz I, Goren S, Golani G, Roichman Y, Munro JB, Sorkin R. Ebola Virus Glycoprotein Strongly Binds to Membranes in the Absence of Receptor Engagement. ACS Infect Dis 2024; 10:1590-1601. [PMID: 38684073 DOI: 10.1021/acsinfecdis.3c00622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2024]
Abstract
Ebola virus (EBOV) is an enveloped virus that must fuse with the host cell membrane in order to release its genome and initiate infection. This process requires the action of the EBOV envelope glycoprotein (GP), encoded by the virus, which resides in the viral envelope and consists of a receptor binding subunit, GP1, and a membrane fusion subunit, GP2. Despite extensive research, a mechanistic understanding of the viral fusion process is incomplete. To investigate GP-membrane association, a key step in the fusion process, we used two approaches: high-throughput measurements of single-particle diffusion and single-molecule measurements with optical tweezers. Using these methods, we show that the presence of the endosomal Niemann-Pick C1 (NPC1) receptor is not required for primed GP-membrane binding. In addition, we demonstrate this binding is very strong, likely attributed to the interaction between the GP fusion loop and the membrane's hydrophobic core. Our results also align with previously reported findings, emphasizing the significance of acidic pH in the protein-membrane interaction. Beyond Ebola virus research, our approach provides a powerful toolkit for studying other protein-membrane interactions, opening new avenues for a better understanding of protein-mediated membrane fusion events.
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Affiliation(s)
- Alisa Vaknin
- School of Chemistry, Raymond & Beverly Sackler Faculty of Exact Sciences, Tel Aviv University, Tel Aviv 6997801, Israel
- Center for Physics and Chemistry of Living Systems, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Alon Grossman
- School of Chemistry, Raymond & Beverly Sackler Faculty of Exact Sciences, Tel Aviv University, Tel Aviv 6997801, Israel
- Center for Physics and Chemistry of Living Systems, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Natasha D Durham
- Department of Microbiology and Physiological Systems, University of Massachusetts Chan Medical School, Worcester, Massachusetts 01605, United States
| | - Inbal Lupovitz
- School of Chemistry, Raymond & Beverly Sackler Faculty of Exact Sciences, Tel Aviv University, Tel Aviv 6997801, Israel
- Center for Physics and Chemistry of Living Systems, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Shahar Goren
- School of Chemistry, Raymond & Beverly Sackler Faculty of Exact Sciences, Tel Aviv University, Tel Aviv 6997801, Israel
- Center for Physics and Chemistry of Living Systems, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Gonen Golani
- Department of Physics and Haifa Research Center for Theoretical Physics and Astrophysics, University of Haifa, Haifa 3498838, Israel
| | - Yael Roichman
- School of Chemistry, Raymond & Beverly Sackler Faculty of Exact Sciences, Tel Aviv University, Tel Aviv 6997801, Israel
- Center for Physics and Chemistry of Living Systems, Tel Aviv University, Tel Aviv 6997801, Israel
- Raymond and Beverly Sackler School of Physics & Astronomy, Tel Aviv University, Tel Aviv 6997801, Israel
| | - James B Munro
- Department of Microbiology and Physiological Systems, University of Massachusetts Chan Medical School, Worcester, Massachusetts 01605, United States
- Department of Biochemistry and Molecular Biotechnology, University of Massachusetts Chan Medical School, Worcester, Massachusetts 01605, United States
| | - Raya Sorkin
- School of Chemistry, Raymond & Beverly Sackler Faculty of Exact Sciences, Tel Aviv University, Tel Aviv 6997801, Israel
- Center for Physics and Chemistry of Living Systems, Tel Aviv University, Tel Aviv 6997801, Israel
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Han Y, Jiang J, Li J, Zhao L, Xi Z. Influences of Polyphenols on the Properties of Crosslinked Acellular Fish Swim Bladders: Experiments and Molecular Dynamic Simulations. Polymers (Basel) 2024; 16:1111. [PMID: 38675029 PMCID: PMC11054729 DOI: 10.3390/polym16081111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2024] [Revised: 04/10/2024] [Accepted: 04/13/2024] [Indexed: 04/28/2024] Open
Abstract
Acellular fish swim bladders (AFSBs) are a promising biomaterial in tissue engineering, however, they may suffer from rapid degradation due to enzyme invasion. In this work, natural polyphenols, including epigallocatechin gallate (EGCG), proanthocyanidin (PC), tannic acid (TA) and protocatechuic acid (PCA), were utilized to improve the properties of AFSBs through crosslinking modifications. Fourier transform infrared (FTIR) results indicate that the triple helix of the collagen in AFSBs is well preserved after crosslinking. The differential scanning calorimetry (DSC), water contact angle (WCA) and in vitro degradation tests indicate that the polyphenol-crosslinked AFSBs exhibit improved thermal stability, enzymatic stability, hydrophilicity and mechanical properties. Among them, EGCG with multiple phenolic hydroxyl groups and low potential resistance is more favorable for the improvement of the mechanical properties and enzymatic stability of AFSBs, as well as their biocompatibility and integrity with the collagen triple helix. Moreover, the crosslinking mechanism was demonstrated to be due to the hydrogen bonds between polyphenols and AFSBs, and was affected by the molecular size, molecular weight and the hydroxyl groups activity of polyphenol molecules, as clarified by molecular dynamic (MD) simulations. The approach presented in this work paves a path for improving the properties of collagen materials.
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Affiliation(s)
- Yuqing Han
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China; (Y.H.); (J.J.); (L.Z.)
| | - Jie Jiang
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China; (Y.H.); (J.J.); (L.Z.)
| | - Jinjin Li
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China; (Y.H.); (J.J.); (L.Z.)
| | - Ling Zhao
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China; (Y.H.); (J.J.); (L.Z.)
- Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Zhenhao Xi
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China; (Y.H.); (J.J.); (L.Z.)
- Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
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Chen J, Zhang D, Wu LP, Zhao M. Current Strategies for Engineered Vascular Grafts and Vascularized Tissue Engineering. Polymers (Basel) 2023; 15:polym15092015. [PMID: 37177162 PMCID: PMC10181238 DOI: 10.3390/polym15092015] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 04/21/2023] [Accepted: 04/21/2023] [Indexed: 05/15/2023] Open
Abstract
Blood vessels not only transport oxygen and nutrients to each organ, but also play an important role in the regulation of tissue regeneration. Impaired or occluded vessels can result in ischemia, tissue necrosis, or even life-threatening events. Bioengineered vascular grafts have become a promising alternative treatment for damaged or occlusive vessels. Large-scale tubular grafts, which can match arteries, arterioles, and venules, as well as meso- and microscale vasculature to alleviate ischemia or prevascularized engineered tissues, have been developed. In this review, materials and techniques for engineering tubular scaffolds and vasculature at all levels are discussed. Examples of vascularized tissue engineering in bone, peripheral nerves, and the heart are also provided. Finally, the current challenges are discussed and the perspectives on future developments in biofunctional engineered vessels are delineated.
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Affiliation(s)
- Jun Chen
- Department of Organ Transplantation, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China
- Center for Chemical Biology and Drug Discovery, Laboratory of Computational Biomedicine, Guangzhou Institute of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
| | - Di Zhang
- Center for Chemical Biology and Drug Discovery, Laboratory of Computational Biomedicine, Guangzhou Institute of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
| | - Lin-Ping Wu
- Center for Chemical Biology and Drug Discovery, Laboratory of Computational Biomedicine, Guangzhou Institute of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
| | - Ming Zhao
- Department of Organ Transplantation, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China
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Lee W, Heo E, Koo HB, Cho I, Chang JB. Strong, Chemically Stable, and Enzymatically On-Demand Detachable Hydrogel Adhesion Using Protein Crosslink. Macromol Rapid Commun 2023; 44:e2200750. [PMID: 36484110 DOI: 10.1002/marc.202200750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 11/27/2022] [Indexed: 12/13/2022]
Abstract
Achieving strong adhesion between hydrogels and diverse materials is greatly significant for emerging technologies yet remains challenging. Existing methods using non-covalent bonds have limited pH and ion stability, while those using covalent bonds typically lack on-demand detachment capability, limiting their applications. In this study, a general strategy of covalent bond-based and detachable adhesion by incorporating amine-rich proteins in various hydrogels and inducing the interfacial crosslinking of the hydrogels using a protein-crosslinking agent is demonstrated. The protein crosslink offers topological adhesion and can reach a strong adhesion energy of ≈750 J m-2 . The chemistry of the adhesion is characterized and that the inclusion of proteins inside the hydrogels does not alter the hydrogels' properties is shown. The adhesion remains intact after treating the adhered hydrogels with various pH solutions and ions, even at an elevated temperature. The detachment is triggered by treating proteinase solution at the bonding front, causing the digestion of proteins, thus breaking up the interfacial crosslink network. In addition, that this approach can be used to adhere hydrogels to diverse dry surfaces, including glass, elastomers and plastics, is shown. The stable chemistry of protein crosslinks opens the door for various applications in a wide range of chemical environments.
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Affiliation(s)
- Wonseok Lee
- Department of Chemical and Biomolecular Engineering, Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Eunseok Heo
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Hye Been Koo
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - In Cho
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Jae-Byum Chang
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
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Li Y, Zhou Y, Qiao W, Shi J, Qiu X, Dong N. Application of decellularized vascular matrix in small-diameter vascular grafts. Front Bioeng Biotechnol 2023; 10:1081233. [PMID: 36686240 PMCID: PMC9852870 DOI: 10.3389/fbioe.2022.1081233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Accepted: 12/13/2022] [Indexed: 01/09/2023] Open
Abstract
Coronary artery bypass grafting (CABG) remains the most common procedure used in cardiovascular surgery for the treatment of severe coronary atherosclerotic heart disease. In coronary artery bypass grafting, small-diameter vascular grafts can potentially replace the vessels of the patient. The complete retention of the extracellular matrix, superior biocompatibility, and non-immunogenicity of the decellularized vascular matrix are unique advantages of small-diameter tissue-engineered vascular grafts. However, after vascular implantation, the decellularized vascular matrix is also subject to thrombosis and neoplastic endothelial hyperplasia, the two major problems that hinder its clinical application. The keys to improving the long-term patency of the decellularized matrix as vascular grafts include facilitating early endothelialization and avoiding intravascular thrombosis. This review article sequentially introduces six aspects of the decellularized vascular matrix as follows: design criteria of vascular grafts, components of the decellularized vascular matrix, the changing sources of the decellularized vascular matrix, the advantages and shortcomings of decellularization technologies, modification methods and the commercialization progress as well as the application prospects in small-diameter vascular grafts.
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Affiliation(s)
| | | | | | | | - Xuefeng Qiu
- *Correspondence: Xuefeng Qiu, ; Nianguo Dong,
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Xu Q, Torres JE, Hakim M, Babiak PM, Pal P, Battistoni CM, Nguyen M, Panitch A, Solorio L, Liu JC. Collagen- and hyaluronic acid-based hydrogels and their biomedical applications. MATERIALS SCIENCE & ENGINEERING. R, REPORTS : A REVIEW JOURNAL 2021; 146:100641. [PMID: 34483486 PMCID: PMC8409465 DOI: 10.1016/j.mser.2021.100641] [Citation(s) in RCA: 73] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Hydrogels have been widely investigated in biomedical fields due to their similar physical and biochemical properties to the extracellular matrix (ECM). Collagen and hyaluronic acid (HA) are the main components of the ECM in many tissues. As a result, hydrogels prepared from collagen and HA hold inherent advantages in mimicking the structure and function of the native ECM. Numerous studies have focused on the development of collagen and HA hydrogels and their biomedical applications. In this extensive review, we provide a summary and analysis of the sources, features, and modifications of collagen and HA. Specifically, we highlight the fabrication, properties, and potential biomedical applications as well as promising commercialization of hydrogels based on these two natural polymers.
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Affiliation(s)
- Qinghua Xu
- Davidson School of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Jessica E. Torres
- Davidson School of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Mazin Hakim
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, Indiana 47907, USA
| | - Paulina M Babiak
- Davidson School of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Pallabi Pal
- Davidson School of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Carly M Battistoni
- Davidson School of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Michael Nguyen
- Department of Biomedical Engineering, University of California Davis, Davis, California 95616, United States
| | - Alyssa Panitch
- Department of Biomedical Engineering, University of California Davis, Davis, California 95616, United States
| | - Luis Solorio
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, Indiana 47907, USA
| | - Julie C. Liu
- Davidson School of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907, United States
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, Indiana 47907, USA
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Zhao X, Chen X, Yuk H, Lin S, Liu X, Parada G. Soft Materials by Design: Unconventional Polymer Networks Give Extreme Properties. Chem Rev 2021; 121:4309-4372. [PMID: 33844906 DOI: 10.1021/acs.chemrev.0c01088] [Citation(s) in RCA: 289] [Impact Index Per Article: 96.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Hydrogels are polymer networks infiltrated with water. Many biological hydrogels in animal bodies such as muscles, heart valves, cartilages, and tendons possess extreme mechanical properties including being extremely tough, strong, resilient, adhesive, and fatigue-resistant. These mechanical properties are also critical for hydrogels' diverse applications ranging from drug delivery, tissue engineering, medical implants, wound dressings, and contact lenses to sensors, actuators, electronic devices, optical devices, batteries, water harvesters, and soft robots. Whereas numerous hydrogels have been developed over the last few decades, a set of general principles that can rationally guide the design of hydrogels using different materials and fabrication methods for various applications remain a central need in the field of soft materials. This review is aimed at synergistically reporting: (i) general design principles for hydrogels to achieve extreme mechanical and physical properties, (ii) implementation strategies for the design principles using unconventional polymer networks, and (iii) future directions for the orthogonal design of hydrogels to achieve multiple combined mechanical, physical, chemical, and biological properties. Because these design principles and implementation strategies are based on generic polymer networks, they are also applicable to other soft materials including elastomers and organogels. Overall, the review will not only provide comprehensive and systematic guidelines on the rational design of soft materials, but also provoke interdisciplinary discussions on a fundamental question: why does nature select soft materials with unconventional polymer networks to constitute the major parts of animal bodies?
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Affiliation(s)
- Xuanhe Zhao
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States.,Department of Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Xiaoyu Chen
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Hyunwoo Yuk
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Shaoting Lin
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Xinyue Liu
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - German Parada
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
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Lan X, Zhao Q, Zhang J, Lei Y, Wang Y. A combination of hydrogen bonding and chemical covalent crosslinking to fabricate a novel swim-bladder-derived dry heart valve material yields advantageous mechanical and biological properties. Biomed Mater 2020; 16:015014. [DOI: 10.1088/1748-605x/abb616] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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10
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Modak P, Hammond W, Jaffe M, Nadig M, Russo R. Dynamic, 3DSchiff base networks for medical applications. J Appl Polym Sci 2020. [DOI: 10.1002/app.49756] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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11
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吴 唯, 李 博, 刘 玉, 王 新. [Biodegradation properties of multi-laminated small intestinal submucosa]. BEIJING DA XUE XUE BAO. YI XUE BAN = JOURNAL OF PEKING UNIVERSITY. HEALTH SCIENCES 2020; 52:564-569. [PMID: 32541993 PMCID: PMC7433422 DOI: 10.19723/j.issn.1671-167x.2020.03.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Indexed: 11/20/2022]
Abstract
OBJECTIVE To study the biodegradation properties of multi-laminated small intestinal submucosa (mSIS) through in vitro and in vivo experiments, comparing with Bio-Gide, the most widely used collagen membrane in guided bone regeneration (GBR) technique, for the purpose of providing basis to investigate whether mSIS meets the requirements of GBR in dental clinics. METHODS The degradation properties were evaluated in vitro and in vivo. In vitro degradation was performed using prepared collagenase solution. Morphology of mSIS and Bio-Gide in degradation solution were observed and the degradation rate was calculated at different time points. In in vivo experiments, nine New Zealand rabbits were used for subcutaneous implantation and were divided into three groups according to observation intervals. Six unconnected subcutaneous pouches were made on the back of each animal and were embedded with mSIS and Bio-Gide respectively. At the end of weeks 4, 8, and 12 after operation, gross observation and HE staining were used to evaluate the degree of degradation and histocompatibility. RESULTS In vitro degradation experiments showed that mSIS membrane was completely degraded at the end of 12 days, while Bio-Gide was degraded at the end of 7 days. Besides, mSIS maintained its shape for longer time in the degradation solution than Bio-Gide, indicating that mSIS possessed longer degradation time, and had better ability to maintain space than Bio-Gide. In vivo biodegradation indicated that after 4 weeks of implantation, mSIS remained intact. Microscopic observation showed that collagen fibers were continuous with a few inflammatory cells that infiltrated around the membrane. Bio-Gide was basically intact and partially adhered with the surrounding tissues. HE staining showed that collagen fibers were partly fused with surrounding tissues with a small amount of inflammatory cells that infiltrated as well. Eight weeks after operation, mSIS was still intact, and was partly integrated with connective tissues, whereas Bio-Gide membrane was mostly broken and only a few residual fibers could be found under microscope. Only a small amount of mSIS debris could be observed 12 weeks after surgery, and Bio-Gide could hardly be found by naked eye and microscopic observation at the same time. CONCLUSION In vitro degradation time of mSIS is longer than that of Bio-Gide, and the space-maintenance ability of mSIS is better. The in vivo biodegradation time of subcutaneous implantation of mSIS is about 12 weeks and Bio-Gide is about 8 weeks, both of which possess good biocompatibility.
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Affiliation(s)
- 唯伊 吴
- />北京大学口腔医学院·口腔医院,修复科 国家口腔疾病临床医学研究中心 口腔数字化医疗技术和材料国家工程实验室 口腔数字医学北京市重点实验室, 北京 100081Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - 博文 李
- />北京大学口腔医学院·口腔医院,修复科 国家口腔疾病临床医学研究中心 口腔数字化医疗技术和材料国家工程实验室 口腔数字医学北京市重点实验室, 北京 100081Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - 玉华 刘
- />北京大学口腔医学院·口腔医院,修复科 国家口腔疾病临床医学研究中心 口腔数字化医疗技术和材料国家工程实验室 口腔数字医学北京市重点实验室, 北京 100081Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - 新知 王
- />北京大学口腔医学院·口腔医院,修复科 国家口腔疾病临床医学研究中心 口腔数字化医疗技术和材料国家工程实验室 口腔数字医学北京市重点实验室, 北京 100081Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
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Wang D, Xu Y, Li Q, Turng LS. Artificial small-diameter blood vessels: materials, fabrication, surface modification, mechanical properties, and bioactive functionalities. J Mater Chem B 2020; 8:1801-1822. [PMID: 32048689 PMCID: PMC7155776 DOI: 10.1039/c9tb01849b] [Citation(s) in RCA: 63] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Cardiovascular diseases, especially ones involving narrowed or blocked blood vessels with diameters smaller than 6 millimeters, are the leading cause of death globally. Vascular grafts have been used in bypass surgery to replace damaged native blood vessels for treating severe cardio- and peripheral vascular diseases. However, autologous replacement grafts are not often available due to prior harvesting or the patient's health. Furthermore, autologous harvesting causes secondary injury to the patient at the harvest site. Therefore, artificial blood vessels have been widely investigated in the last several decades. In this review, the progress and potential outlook of small-diameter blood vessels (SDBVs) engineered in vitro are highlighted and summarized, including material selection and development, fabrication techniques, surface modification, mechanical properties, and bioactive functionalities. Several kinds of natural and synthetic polymers for artificial SDBVs are presented here. Commonly used fabrication techniques, such as extrusion and expansion, electrospinning, thermally induced phase separation (TIPS), braiding, 3D printing, hydrogel tubing, gas foaming, and a combination of these methods, are analyzed and compared. Different surface modification methods, such as physical immobilization, surface adsorption, plasma treatment, and chemical immobilization, are investigated and are compared here as well. Mechanical requirements of SDBVs are also reviewed for long-term service. In vitro biological functions of artificial blood vessels, including oxygen consumption, nitric oxide (NO) production, shear stress response, leukocyte adhesion, and anticoagulation, are also discussed. Finally, we draw conclusions regarding current challenges and attempts to identify future directions for the optimal combination of materials, fabrication methods, surface modifications, and biofunctionalities. We hope that this review can assist with the design, fabrication, and application of SDBVs engineered in vitro and promote future advancements in this emerging research field.
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Affiliation(s)
- Dongfang Wang
- Department of Mechanical Engineering, University of Wisconsin, Madison, WI, USA. and Wisconsin Institute for Discovery, University of Wisconsin, Madison, WI, USA and School of Mechanics and Engineering Science, Zhengzhou University, Zhengzhou 450001, P. R. China and National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Yiyang Xu
- Department of Mechanical Engineering, University of Wisconsin, Madison, WI, USA. and Wisconsin Institute for Discovery, University of Wisconsin, Madison, WI, USA
| | - Qian Li
- School of Mechanics and Engineering Science, Zhengzhou University, Zhengzhou 450001, P. R. China and National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Lih-Sheng Turng
- Department of Mechanical Engineering, University of Wisconsin, Madison, WI, USA. and Wisconsin Institute for Discovery, University of Wisconsin, Madison, WI, USA
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13
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Nong LM, Zhou D, Zheng D, Jiang YQ, Xu NW, Zhao GY, Wei H, Zhou SY, Han H, Han L. The effect of different cross-linking conditions of EDC/NHS on type II collagen scaffolds: an in vitro evaluation. Cell Tissue Bank 2019; 20:557-568. [PMID: 31583486 DOI: 10.1007/s10561-019-09790-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2019] [Accepted: 09/28/2019] [Indexed: 02/07/2023]
Abstract
The purpose of this paper is to analyze the properties of porcine cartilage type II collagen scaffolds crosslinked with 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide/N-hydroxy-succinamide (EDC/NHS) under different conditions. The porous EDC/NHS-crosslinked scaffolds were obtained through a two-step freeze-drying process. To determine the optimal crosslinking condition, we used different solvents and various crosslinking temperatures to prepare the scaffolds. Three crosslinking solutions were prepared with different solvents, photographs were taken with a flash in the darkroom, and light transmission was observed. Type II collagen was crosslinked on a horizontal shaker at a speed of 60 r/min according to the above grouping conditions, and then the structural change of the scaffold in each group was observed. To investigate the swelling ratio and the in vitro degradation of the collagen scaffold, tests were also carried out by immersion of the scaffolds in a PBS solution and digestion in type II collagenase, respectively. The influence of the scaffolds on the proliferation of chondrocytes was assessed by the methyl thiazolyl tetrazolium colorimetric assay. The morphology of the crosslinked scaffolds cocultured with chondrocytes was characterized by a scanning electron microscope. The results proved that 75% alcohol and a crosslinking temperature of 37 °C are recommended. Collagen fibrils are more densely packed after crosslinking with EDC/NHS and have a more uniform structure than that of noncrosslinked ones. The EDC-crosslinked scaffolds possessed excellent mechanical property and biocompatibility.
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Affiliation(s)
- Lu-Ming Nong
- Orthopedics Department, The Affiliated Changzhou No.2 People's Hospital of Nanjing Medical University, Changzhou, 213000, Jiangsu Province, China
| | - Dong Zhou
- Orthopedics Department, The Affiliated Changzhou No.2 People's Hospital of Nanjing Medical University, Changzhou, 213000, Jiangsu Province, China
| | - Dong Zheng
- Orthopedics Department, The Affiliated Changzhou No.2 People's Hospital of Nanjing Medical University, Changzhou, 213000, Jiangsu Province, China
| | - Yu-Qing Jiang
- Orthopedics Department, The Affiliated Changzhou No.2 People's Hospital of Nanjing Medical University, Changzhou, 213000, Jiangsu Province, China
| | - Nan-Wei Xu
- Orthopedics Department, The Affiliated Changzhou No.2 People's Hospital of Nanjing Medical University, Changzhou, 213000, Jiangsu Province, China
| | - Gong-Yin Zhao
- Orthopedics Department, The Affiliated Changzhou No.2 People's Hospital of Nanjing Medical University, Changzhou, 213000, Jiangsu Province, China
| | - Hui Wei
- Orthopedics Department, The Affiliated Changzhou No.2 People's Hospital of Nanjing Medical University, Changzhou, 213000, Jiangsu Province, China
| | - Si-Yuan Zhou
- Laboratory Department, The Affiliated Changzhou No.2 People's Hospital of Nanjing Medical University, Changzhou, 213000, Jiangsu Province, China
| | - Hui Han
- General Surgery Department, Huaiyin Hospital of Huai'an City, Huai'an, 223300, Jiangsu Province, China
| | - Long Han
- Orthopedics Department, The Affiliated Changzhou No.2 People's Hospital of Nanjing Medical University, Changzhou, 213000, Jiangsu Province, China.
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14
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Janke HP, de Jonge PK, Feitz WF, Oosterwijk E. Reconstruction Strategies of the Ureter and Urinary Diversion Using Tissue Engineering Approaches. TISSUE ENGINEERING PART B-REVIEWS 2019; 25:237-248. [DOI: 10.1089/ten.teb.2018.0345] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Heinz P. Janke
- Department of Urology, Radboud Institute for Molecular Life Science, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Paul K.J.D. de Jonge
- Department of Urology, Radboud Institute for Molecular Life Science, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Wout F.J. Feitz
- Department of Urology, Radboud Institute for Molecular Life Science, Radboud University Medical Center, Nijmegen, The Netherlands
- Radboudumc Amalia Children's Hospital, Nijmegen, The Netherlands
| | - Egbert Oosterwijk
- Department of Urology, Radboud Institute for Molecular Life Science, Radboud University Medical Center, Nijmegen, The Netherlands
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15
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Zhang H, Luo J, Beloglazova N, Yang S, De Saeger S, Mari GM, Zhang S, Shen J, Wang Z, Yu X. Portable Multiplex Immunochromatographic Assay for Quantitation of Two Typical Algae Toxins Based on Dual-Color Fluorescence Microspheres. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:6041-6047. [PMID: 31017431 DOI: 10.1021/acs.jafc.9b00011] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
A multiplex immunochromatographic assay (ICA) based on dual-color fluorescent microspheres (FMs) as a sensitive label was developed for the first time. Two typical algae toxins, microcystin-LR (MC-LR) and okadaic acid (OA), were chosen as proof-of concept targets to evaluate the feasibility of this ICA format. Commercial red- and green-colored FMs were selected to couple with monoclonal antibodies as fluorescent probes. The use of dual-wavelength FMs as labels guaranteed a lower consumption of material strips, lower sample volume, and shorter reaction time without increasing the length of ICA strips. Under optimal conditions, the multiplex FM-ICA could be completed in 20 min and reached limits of detection for the simultaneous determination of MC-LR and OA in fish samples, which were 0.074 and 2.42 μg/kg, respectively. The developed technique was validated using artificially spiked and naturally contaminated fish samples. Ultra-high-performance liquid chromatography-tandem mass spectrometry was used as confirmatory technique. In summary, this portable ICAs detection mode based on dual-wavelength FMs provided a reliable and sensitive on-site detection of multiple contaminants in food samples, which opens a new field for application of FMs in food safety.
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Affiliation(s)
- Huiyan Zhang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine, China Agricultural University, Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, Beijing Laboratory for Food Quality and Safety , Beijing 100193 , People's Republic of China
- Centre of Excellence in Mycotoxicology and Public Health, Faculty of Pharmaceutical Sciences , Ghent University , Ottergemsesteenweg 460 , Ghent 9000 , Belgium
| | - Jiaxun Luo
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine, China Agricultural University, Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, Beijing Laboratory for Food Quality and Safety , Beijing 100193 , People's Republic of China
| | - Natalia Beloglazova
- Centre of Excellence in Mycotoxicology and Public Health, Faculty of Pharmaceutical Sciences , Ghent University , Ottergemsesteenweg 460 , Ghent 9000 , Belgium
- Nanotechnology Education and Research Center , South Ural State University , Chelyabinsk 454080 , Russia
- Department of General and Inorganic Chemistry, Chemistry Institute , Saratov State University , Astrakhanskaya 83 , 410012 Saratov , Russia
| | - Shupeng Yang
- Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Bee Product Quality Supervision and Testing Center, Laboratory of Risk Assessment for Quality and Safety of Bee Products, Ministry of Agriculture , Beijing 100093 , People's Republic of China
| | - Sarah De Saeger
- Centre of Excellence in Mycotoxicology and Public Health, Faculty of Pharmaceutical Sciences , Ghent University , Ottergemsesteenweg 460 , Ghent 9000 , Belgium
| | - Ghulam Mujtaba Mari
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine, China Agricultural University, Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, Beijing Laboratory for Food Quality and Safety , Beijing 100193 , People's Republic of China
| | - Suxia Zhang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine, China Agricultural University, Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, Beijing Laboratory for Food Quality and Safety , Beijing 100193 , People's Republic of China
| | - Jianzhong Shen
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine, China Agricultural University, Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, Beijing Laboratory for Food Quality and Safety , Beijing 100193 , People's Republic of China
| | - Zhanhui Wang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine, China Agricultural University, Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, Beijing Laboratory for Food Quality and Safety , Beijing 100193 , People's Republic of China
| | - Xuezhi Yu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine, China Agricultural University, Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, Beijing Laboratory for Food Quality and Safety , Beijing 100193 , People's Republic of China
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16
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Grebenik EA, Istranov LP, Istranova EV, Churbanov SN, Shavkuta BS, Dmitriev RI, Veryasova NN, Kotova SL, Kurkov AV, Shekhter AB, Timashev PS. Chemical cross‐linking of xenopericardial biomeshes: A bottom‐up study of structural and functional correlations. Xenotransplantation 2019; 26:e12506. [DOI: 10.1111/xen.12506] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Revised: 01/07/2019] [Accepted: 01/29/2019] [Indexed: 01/23/2023]
Affiliation(s)
- Ekaterina A. Grebenik
- Institute for Regenerative Medicine Sechenov First Moscow State Medical University Moscow Russia
| | - Leonid P. Istranov
- Institute for Regenerative Medicine Sechenov First Moscow State Medical University Moscow Russia
| | - Elena V. Istranova
- Institute for Regenerative Medicine Sechenov First Moscow State Medical University Moscow Russia
| | - Semyon N. Churbanov
- Institute for Regenerative Medicine Sechenov First Moscow State Medical University Moscow Russia
- Research Center “Crystallography and Photonics” Institute of Photonic Technologies, Russian Academy of Sciences Moscow Russia
| | - Boris S. Shavkuta
- Institute for Regenerative Medicine Sechenov First Moscow State Medical University Moscow Russia
- Research Center “Crystallography and Photonics” Institute of Photonic Technologies, Russian Academy of Sciences Moscow Russia
| | - Ruslan I. Dmitriev
- School of Biochemistry and Cell Biology University College Cork Cork Ireland
| | - Nadezhda N. Veryasova
- Institute for Regenerative Medicine Sechenov First Moscow State Medical University Moscow Russia
| | - Svetlana L. Kotova
- Research Center “Crystallography and Photonics” Institute of Photonic Technologies, Russian Academy of Sciences Moscow Russia
| | - Alexander V. Kurkov
- Institute for Regenerative Medicine Sechenov First Moscow State Medical University Moscow Russia
| | - Anatoly B. Shekhter
- Institute for Regenerative Medicine Sechenov First Moscow State Medical University Moscow Russia
| | - Peter S. Timashev
- Institute for Regenerative Medicine Sechenov First Moscow State Medical University Moscow Russia
- Research Center “Crystallography and Photonics” Institute of Photonic Technologies, Russian Academy of Sciences Moscow Russia
- Department of Polymers and Composites N.N.Semenov Institute of Chemical Physics Moscow Russia
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17
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Byette F, Marcotte I, Pellerin C. Covalently crosslinked mussel byssus protein-based materials with tunable properties. Pept Sci (Hoboken) 2018. [DOI: 10.1002/pep2.24053] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Frédéric Byette
- Département de Chimie; Université de Montréal; Montréal Québec H3C 3J7 Canada
- Département de Chimie; Université du Québec à Montréal; Montréal Québec H3C 3P8 Canada
| | - Isabelle Marcotte
- Département de Chimie; Université du Québec à Montréal; Montréal Québec H3C 3P8 Canada
| | - Christian Pellerin
- Département de Chimie; Université de Montréal; Montréal Québec H3C 3J7 Canada
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18
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Becker C, Olde Damink L, Laeufer T, Brehmer B, Heschel I, Jakse G. “UroMaix” Scaffolds: Novel Collagen Matrices for Application in Tissue Engineering of the Urinary Tract. Int J Artif Organs 2018; 29:764-71. [PMID: 16969754 DOI: 10.1177/039139880602900806] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Reconstruction of bladder and ureter tissue is indicated in cases of injury, stenosis, infection or tumor. Substitution by ileum, colon or pure synthetic polymers generates a variety of complications. Biohybrid tissue mimicking structural and functional attributes of the multilayered wall architecture of the urinary conduit may be the solution to current problems. This study reports on porcine urinary tract cells isolated and placed on UroMaix matrices with different degrees of cross-linking produced from highly purified type I collagen from medically approved porcine tissue. A patented procedure revealed membrane structures composed of a dense fibrous side and an open fibrous side. These scaffolds with the porcine urinary tract cells were incubated in a batch culture system for up to 14 days. Cell growth and topographical orientation were examined. Urothelial cells showed maximum attachment and a significant increase of living cells on the dense fiber layer of UroMaix-1. No attachment of urothelial cells occurred on the other prototypes. Smooth muscle cells showed similar behavior within the open fiber layer of all UroMaix matrices. Both urothelial and smooth muscle cells retained their phenotypes as demonstrated by the immunostaining of epithelial cytokeratin 18 and the smooth muscle myosin heavy chain respectively. Thus we could show that UroMaix scaffolds support the attachment and proliferation of urinary tract cells. The elastomeric properties of the collagenous matrices promise attractive applications in the tissue engineering of the urinary tract with its high mechanical demands.
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Affiliation(s)
- C Becker
- Department of Urology, University Hospital and Medical Faculty, RWTH Aachen, Aachen, Germany.
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19
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Bioinspired coupled helical coils for soft tissue engineering of tubular structures - Improved mechanical behavior of tubular collagen type I templates. Acta Biomater 2017; 59:234-242. [PMID: 28666884 DOI: 10.1016/j.actbio.2017.06.038] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2017] [Revised: 06/19/2017] [Accepted: 06/26/2017] [Indexed: 11/23/2022]
Abstract
The design of constructs for tubular tissue engineering is challenging. Most biomaterials need to be reinforced with supporting structures such as knittings, meshes or electrospun material to comply with the mechanical demands of native tissues. In this study, coupled helical coils (CHCs) were manufactured to mimic collagen fiber orientation as found in nature. Monofilaments of different commercially available biodegradable polymers were wound and subsequently fused, resulting in right-handed and left-handed polymer helices fused together in joints where the filaments cross. CHCs of different polymer composition were tested to determine the tensile strength, strain recovery, hysteresis, compressive strength and degradation of CHCs of different composition. Subsequently, seamless and stable hybrid constructs consisting of PDSII® USP 2-0 CHCs embedded in porous collagen type I were produced. Compared to collagen alone, this hybrid showed superior strain recovery (93.5±0.9% vs 71.1±12.6% in longitudinal direction; 87.1±6.6% vs 57.2±4.6% in circumferential direction) and hysteresis (18.9±2.7% vs 51.1±12.0% in longitudinal direction; 11.5±4.6% vs 46.3±6.3% in circumferential direction). Furthermore, this hybrid construct showed an improved Young's modulus in both longitudinal (0.5±0.1MPavs 0.2±0.1MPa; 2.5-fold) and circumferential (1.65±0.07MPavs (2.9±0.3)×10-2MPa; 57-fold) direction, respectively, compared to templates created from collagen alone. Moreover, hybrid template characteristics could be modified by changing the CHC composition and CHCs were produced showing a mechanical behavior similar to the native ureter. CHC-enforced templates, which are easily tunable to meet different demands may be promising for tubular tissue engineering. STATEMENT OF SIGNIFICANCE Most tubular constructs lack sufficient strength and tunability to comply with the mechanical demands of native tissues. Therefore, we embedded coupled helical coils (CHCs) produced from biodegradable polymers - to mimic collagen fiber orientation as found in nature - in collagen type I sponges. We show that the mechanical behavior of CHCs is very similar to native tissue and strengths structurally weak tubular constructs. The production procedure is relatively easy, reproducible and mechanical features can be controlled to meet different mechanical demands. This is promising in template manufacture, hence offering new opportunities in tissue engineering of tubular organs and preventing graft failure.
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20
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Shepherd J, Bax D, Best S, Cameron R. Collagen-Fibrinogen Lyophilised Scaffolds for Soft Tissue Regeneration. MATERIALS 2017; 10:ma10060568. [PMID: 28772927 PMCID: PMC5541296 DOI: 10.3390/ma10060568] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Revised: 05/10/2017] [Accepted: 05/11/2017] [Indexed: 01/02/2023]
Abstract
A significant body of research has considered collagen as a scaffold material for soft tissue regeneration. The main structural component of extra-cellular matrix (ECM), collagen’s advantages over synthetic polymers are numerous. However, for applications where higher stiffness and stability are required, significant cross-linking may affect bioactivity. A carbodiimide (EDC) cross-linking route consumes carboxylate groups that are key to collagen’s essential cell recognition motifs (GxOGER). Fibrinogen was considered as a promising additive as it plays a key role in the process of wound repair and contains RGD integrin binding sites which bind to a variety of cells, growth factors and cytokines. Fibrinogen’s binding sites however, also contain the same carboxylate groups as collagen. We have successfully produced highly interconnected, porous collagen-fibrinogen scaffolds using a lyophilisation technique and micro-computed tomography demonstrated minimal influence of either fibrinogen content or cross-linking concentration on the scaffold structure. The specific biological effect of fibrinogen additions into cross-linked collagen are considered by using films as a model for the struts of bulk scaffolds. By considering various additions of fibrinogen to the collagen film with increasing degrees of cross-linking, this study demonstrates a significant biological advantage with fibrinogen addition across the cross-linking concentrations typically applied to collagen-based scaffolds.
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Affiliation(s)
- Jennifer Shepherd
- Department of Materials Science and Metallurgy, University of Cambridge, Cambridge CB3 0FS, UK.
| | - Daniel Bax
- Department of Materials Science and Metallurgy, University of Cambridge, Cambridge CB3 0FS, UK.
| | - Serena Best
- Department of Materials Science and Metallurgy, University of Cambridge, Cambridge CB3 0FS, UK.
| | - Ruth Cameron
- Department of Materials Science and Metallurgy, University of Cambridge, Cambridge CB3 0FS, UK.
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21
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Almeida HV, Dikina AD, Mulhall KJ, O’Brien FJ, Alsberg E, Kelly DJ. Porous Scaffolds Derived from Devitalized Tissue Engineered Cartilaginous Matrix Support Chondrogenesis of Adult Stem Cells. ACS Biomater Sci Eng 2017; 3:1075-1082. [DOI: 10.1021/acsbiomaterials.7b00019] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Henrique V. Almeida
- Trinity
Centre for Bioengineering, Trinity Biomedical Sciences Institute, Trinity College Dublin, 152−160 Pearse Street, Dublin 2, Ireland
- Department
of Mechanical and Manufacturing Engineering, School of Engineering, Trinity College Dublin, College Green, Dublin 2, Ireland
- Center
for Neuroscience and Cell Biology, University of Coimbra, Rua Larga, 3004-504 Coimbra, Portugal
| | | | - Kevin J. Mulhall
- Sports Surgery Clinic, Northwood
Avenue, Santry Demesne, Dublin 9, Ireland
| | - Fergal J. O’Brien
- Trinity
Centre for Bioengineering, Trinity Biomedical Sciences Institute, Trinity College Dublin, 152−160 Pearse Street, Dublin 2, Ireland
- Tissue Engineering
Research Group, Department of Anatomy, Royal College of Surgeons in Ireland, 123 St. Stephen’s Green, Dublin 2, Ireland
- Advanced Materials and Bioengineering Research Centre (AMBER), Trinity College Dublin & Royal College of Surgeons in Ireland, Dublin 2, Ireland
| | | | - Daniel J. Kelly
- Trinity
Centre for Bioengineering, Trinity Biomedical Sciences Institute, Trinity College Dublin, 152−160 Pearse Street, Dublin 2, Ireland
- Department
of Mechanical and Manufacturing Engineering, School of Engineering, Trinity College Dublin, College Green, Dublin 2, Ireland
- Tissue Engineering
Research Group, Department of Anatomy, Royal College of Surgeons in Ireland, 123 St. Stephen’s Green, Dublin 2, Ireland
- Advanced Materials and Bioengineering Research Centre (AMBER), Trinity College Dublin & Royal College of Surgeons in Ireland, Dublin 2, Ireland
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22
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Gao S, Yuan Z, Guo W, Chen M, Liu S, Xi T, Guo Q. Comparison of glutaraldehyde and carbodiimides to crosslink tissue engineering scaffolds fabricated by decellularized porcine menisci. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 71:891-900. [DOI: 10.1016/j.msec.2016.10.074] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2016] [Revised: 10/06/2016] [Accepted: 10/30/2016] [Indexed: 02/06/2023]
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23
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Cheng X, Shao Z, Li C, Yu L, Raja MA, Liu C. Isolation, Characterization and Evaluation of Collagen from Jellyfish Rhopilema esculentum Kishinouye for Use in Hemostatic Applications. PLoS One 2017; 12:e0169731. [PMID: 28103327 PMCID: PMC5245839 DOI: 10.1371/journal.pone.0169731] [Citation(s) in RCA: 73] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Accepted: 12/21/2016] [Indexed: 11/18/2022] Open
Abstract
Hemostat has been a crucial focus since human body is unable to control massive blood loss, and collagen proves to be an effective hemostat in previous studies. In this study, collagen was isolated from the mesoglea of jellyfish Rhopilema esculentum Kishinouye and its hemostatic property was studied. The yields of acid-soluble collagen (ASC) and pepsin-soluble (PSC) were 0.12% and 0.28% respectively. The SDS-PAGE patterns indicated that the collagen extracted from jellyfish mesoglea was type I collagen. The lyophilized jellyfish collagen sponges were cross-linked with EDC and interconnected networks in the sponges were revealed by scanning electron microscope (SEM). Collagen sponges exhibited higher water absorption rates than medical gauze and EDC/NHS cross-linking method could improve the stability of the collagen sponges. Compared with medical gauze groups, the blood clotting indexes (BCIs) of collagen sponges were significantly decreased (P < 0.05) and the concentration of collagen also had an influence on the hemostatic property (P < 0.05). Collagen sponges had an improved hemostatic ability compared to the gauze control in tail amputation rat models. Hemostatic mechanism studies showed that hemocytes and platelets could adhere and aggregate on the surface of collagen sponge. All properties make jellyfish collagen sponge to be a suitable candidate used as hemostatic material and for wound healing applications.
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Affiliation(s)
- Xiaochen Cheng
- College of Marine Life Sciences, Ocean University of China, Qingdao, P. R. China
| | - Ziyu Shao
- College of Marine Life Sciences, Ocean University of China, Qingdao, P. R. China
| | - Chengbo Li
- College of Marine Life Sciences, Ocean University of China, Qingdao, P. R. China
| | - Lejun Yu
- College of Marine Life Sciences, Ocean University of China, Qingdao, P. R. China
| | - Mazhar Ali Raja
- College of Marine Life Sciences, Ocean University of China, Qingdao, P. R. China
| | - Chenguang Liu
- College of Marine Life Sciences, Ocean University of China, Qingdao, P. R. China
- * E-mail:
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24
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Tan J, Hao B, Liu Z, Bai F, Yang R, Hao H. Modification and characterization of an aptamer-based surface plasmon resonance sensor chip. BIO WEB OF CONFERENCES 2017. [DOI: 10.1051/bioconf/20170803011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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25
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Alberti KA, Xu Q. Biocompatibility and degradation of tendon-derived scaffolds. Regen Biomater 2016; 3:1-11. [PMID: 26816651 PMCID: PMC4723279 DOI: 10.1093/rb/rbv023] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2015] [Revised: 10/28/2015] [Accepted: 10/29/2015] [Indexed: 02/02/2023] Open
Abstract
Decellularized extracellular matrix has often been used as a biomaterial for tissue engineering applications. Its function, once implanted can be crucial to determining whether a tissue engineered construct will be successful, both in terms of how the material breaks down, and how the body reacts to the material's presence in the first place. Collagen is one of the primary components of extracellular matrix and has been used for a number of biomedical applications. Scaffolds comprised of highly aligned collagen fibrils can be fabricated directly from decellularized tendon using a slicing, stacking, and rolling technique, to create two- and three-dimensional constructs. Here, the degradation characteristics of the material are evaluated in vitro, showing that chemical crosslinking can reduce degradation while maintaining fiber structure. In vivo, non-crosslinked and crosslinked samples are implanted, and their biological response and degradation evaluated through histological sectioning, trichrome staining, and immunohistochemical staining for macrophages. Non-crosslinked samples are rapidly degraded and lose fiber morphology while crosslinked samples retain both macroscopic structure as well as fiber orientation. The cellular response of both materials is also investigated. The in vivo response demonstrates that the decellularized tendon material is biocompatible, biodegradable and can be crosslinked to maintain surface features for extended periods of time in vivo. This study provides material characteristics for the use of decellularized tendon as biomaterial for tissue engineering.
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Affiliation(s)
- Kyle A. Alberti
- Department of Biomedical Engineering, Tufts University, 4 Colby Street, Medford, MA 02155, USA
| | - Qiaobing Xu
- Department of Biomedical Engineering, Tufts University, 4 Colby Street, Medford, MA 02155, USA
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26
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Lakra R, Kiran MS, Sai KP. Fabrication of homobifunctional crosslinker stabilized collagen for biomedical application. Biomed Mater 2015; 10:065015. [DOI: 10.1088/1748-6041/10/6/065015] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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27
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Martínez A, Blanco M, Davidenko N, Cameron R. Tailoring chitosan/collagen scaffolds for tissue engineering: Effect of composition and different crosslinking agents on scaffold properties. Carbohydr Polym 2015; 132:606-19. [DOI: 10.1016/j.carbpol.2015.06.084] [Citation(s) in RCA: 81] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2015] [Revised: 06/17/2015] [Accepted: 06/27/2015] [Indexed: 01/02/2023]
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Multi-residue fluorescent microspheres immunochromatographic assay for simultaneous determination of macrolides in raw milk. Anal Bioanal Chem 2015; 407:9125-33. [PMID: 26497839 DOI: 10.1007/s00216-015-9078-3] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2015] [Revised: 09/20/2015] [Accepted: 09/23/2015] [Indexed: 12/25/2022]
Abstract
A rapid, reliable, sensitive, and quantitative multi-residue fluorescent microspheres immunochromatographic assay (FMCA) was developed for simultaneous detection of four macrolides in raw milk. The IC50 value of the optimized FMCA was 1.36, 1.22, 1.01, and 1.39 ng/mL for erythromycin (ERY), spiramycin (SPI), tilmicosin (TIM), and tylosin (TYL), respectively. The limits of detection (LODs) for the four macrolides was 0.13 ng/mL. The recoveries of ERY, SPI, TIM, and TYL from spiked raw milk ranged from 91.8-109.2, 89.6-114.4, 84.8-111.6, and 85.8-115.2%, respectively, with coefficients of variation (CVs) of 5.4-11.3, 7.9-15.7, 6.2-13.7, and 3.2-14.9%, respectively. The whole testing process was completed within 20 min. The antibody-mixed labeled method was successfully applied to the FMCA, which greatly simplified the operation steps and saved a lot of time. Compared with the immunogold chromatographic assay (IGCA), the FMCA is more sensitive and stable and has less antibody consumption. A parallel analysis in blind raw milk samples was conducted by liquid chromatography-tandem mass spectrometry (LC-MS/MS); the results showed good correlation (r(2) = 0.99) between the two methods. Therefore, the developed multi-residue FMCA is reliable and can be easily applied to other antibiotics or other contaminants.
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Yu CY, Li NM, Yang S, Ning Q, Huang C, Huang W, He ZN, He DX, Tan XW, Sun LC. Fabrication of galactosylated chitosan-5-fluorouracil acetic acid based nanoparticles for controlled drug delivery. J Appl Polym Sci 2015. [DOI: 10.1002/app.42625] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Cui-Yun Yu
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study; University of South China; Hengyang 421001 China
- Learning Key Laboratory for Pharmacoproteomics of Hunan Province; Institute of Pharmacy and Pharmacology, University of South China; Hengyang 421001 China
| | - Na-Mei Li
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study; University of South China; Hengyang 421001 China
| | - Sa Yang
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study; University of South China; Hengyang 421001 China
| | - Qian Ning
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study; University of South China; Hengyang 421001 China
| | - Can Huang
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study; University of South China; Hengyang 421001 China
| | - Wen Huang
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study; University of South China; Hengyang 421001 China
| | - Zi-Ning He
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study; University of South China; Hengyang 421001 China
| | - Dong-Xiu He
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study; University of South China; Hengyang 421001 China
| | - Xiang-Wen Tan
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study; University of South China; Hengyang 421001 China
| | - Li-Chun Sun
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study; University of South China; Hengyang 421001 China
- Department of Medicine; Tulane University Health Sciences Center; New Orleans Louisiana 70112
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Mulder IM, Deerenberg EB, Bemelman WA, Jeekel J, Lange JF. Infection susceptibility of crosslinked and non-crosslinked biological meshes in an experimental contaminated environment. Am J Surg 2015; 210:159-66. [DOI: 10.1016/j.amjsurg.2014.06.025] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2014] [Revised: 06/18/2014] [Accepted: 06/22/2014] [Indexed: 12/13/2022]
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Ahmad Z, Shepherd JH, Shepherd DV, Ghose S, Kew SJ, Cameron RE, Best SM, Brooks RA, Wardale J, Rushton N. Effect of 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide and N-hydroxysuccinimide concentrations on the mechanical and biological characteristics of cross-linked collagen fibres for tendon repair. Regen Biomater 2015; 2:77-85. [PMID: 26816633 PMCID: PMC4669024 DOI: 10.1093/rb/rbv005] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2015] [Revised: 04/02/2015] [Accepted: 04/02/2015] [Indexed: 11/28/2022] Open
Abstract
Reconstituted type I collagen fibres have received considerable interest as tendon implant materials due to their chemical and structural similarity to the native tissue. Fibres produced through a semi-continuous extrusion process were cross-linked with different concentrations of the zero-length cross-linker 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide (EDC) in combination with N-hydroxysuccinimide (NHS). Tensile properties of the fibres were considered, along with imaging of both surface structure and fibrillar alignment. Resistance of the fibres to bacterial collagenase was investigated and fibre sections seeded with human tendon cells for biological characterization, including cell adhesion and proliferation. The work clearly demonstrated that whilst the concentration of EDC and NHS had no significant effect on the mechanics, a higher concentration was associated with higher collagenase resistance, but also provided a less attractive surface for cell adhesion and proliferation. A lower cross-linking concentration offered a more biocompatible material without reduction in mechanics and with a potentially more optimal degradability.
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Affiliation(s)
- Zafar Ahmad
- Orthopaedic Research Unit, Department of Surgery University of Cambridge, Addenbrooke’s Hospital, Cambridge, CB2 0QQ, UK; Department of Materials Science and Metallurgy, University of Cambridge, Cambridge, CB3 0FS, UK; Tigenix Ltd, Cambridge, CB4 0FY, UK
| | - Jennifer H. Shepherd
- Orthopaedic Research Unit, Department of Surgery University of Cambridge, Addenbrooke’s Hospital, Cambridge, CB2 0QQ, UK; Department of Materials Science and Metallurgy, University of Cambridge, Cambridge, CB3 0FS, UK; Tigenix Ltd, Cambridge, CB4 0FY, UK
| | - David V. Shepherd
- Orthopaedic Research Unit, Department of Surgery University of Cambridge, Addenbrooke’s Hospital, Cambridge, CB2 0QQ, UK; Department of Materials Science and Metallurgy, University of Cambridge, Cambridge, CB3 0FS, UK; Tigenix Ltd, Cambridge, CB4 0FY, UK
| | - Siddhartha Ghose
- Orthopaedic Research Unit, Department of Surgery University of Cambridge, Addenbrooke’s Hospital, Cambridge, CB2 0QQ, UK; Department of Materials Science and Metallurgy, University of Cambridge, Cambridge, CB3 0FS, UK; Tigenix Ltd, Cambridge, CB4 0FY, UK
| | - Simon J. Kew
- Orthopaedic Research Unit, Department of Surgery University of Cambridge, Addenbrooke’s Hospital, Cambridge, CB2 0QQ, UK; Department of Materials Science and Metallurgy, University of Cambridge, Cambridge, CB3 0FS, UK; Tigenix Ltd, Cambridge, CB4 0FY, UK
| | - Ruth E. Cameron
- Orthopaedic Research Unit, Department of Surgery University of Cambridge, Addenbrooke’s Hospital, Cambridge, CB2 0QQ, UK; Department of Materials Science and Metallurgy, University of Cambridge, Cambridge, CB3 0FS, UK; Tigenix Ltd, Cambridge, CB4 0FY, UK
| | - Serena M. Best
- Orthopaedic Research Unit, Department of Surgery University of Cambridge, Addenbrooke’s Hospital, Cambridge, CB2 0QQ, UK; Department of Materials Science and Metallurgy, University of Cambridge, Cambridge, CB3 0FS, UK; Tigenix Ltd, Cambridge, CB4 0FY, UK
| | - Roger A. Brooks
- Orthopaedic Research Unit, Department of Surgery University of Cambridge, Addenbrooke’s Hospital, Cambridge, CB2 0QQ, UK; Department of Materials Science and Metallurgy, University of Cambridge, Cambridge, CB3 0FS, UK; Tigenix Ltd, Cambridge, CB4 0FY, UK
| | - John Wardale
- Orthopaedic Research Unit, Department of Surgery University of Cambridge, Addenbrooke’s Hospital, Cambridge, CB2 0QQ, UK; Department of Materials Science and Metallurgy, University of Cambridge, Cambridge, CB3 0FS, UK; Tigenix Ltd, Cambridge, CB4 0FY, UK
| | - Neil Rushton
- Orthopaedic Research Unit, Department of Surgery University of Cambridge, Addenbrooke’s Hospital, Cambridge, CB2 0QQ, UK; Department of Materials Science and Metallurgy, University of Cambridge, Cambridge, CB3 0FS, UK; Tigenix Ltd, Cambridge, CB4 0FY, UK
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Sanami M, Sweeney I, Shtein Z, Meirovich S, Sorushanova A, Mullen AM, Miraftab M, Shoseyov O, O'Dowd C, Pandit A, Zeugolis DI. The influence of poly(ethylene glycol) ether tetrasuccinimidyl glutarate on the structural, physical, and biological properties of collagen fibers. J Biomed Mater Res B Appl Biomater 2015; 104:914-22. [DOI: 10.1002/jbm.b.33445] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2015] [Revised: 03/17/2015] [Accepted: 04/18/2015] [Indexed: 11/09/2022]
Affiliation(s)
- Mohammad Sanami
- Vornia Biomaterials Ltd.; Galway Ireland
- Institute of Materials Research and Innovation, University of Bolton; Bolton UK
| | - India Sweeney
- Vornia Biomaterials Ltd.; Galway Ireland
- Institute of Materials Research and Innovation, University of Bolton; Bolton UK
| | - Zvi Shtein
- Vornia Biomaterials Ltd.; Galway Ireland
- Robert H. Smith Faculty of Agriculture; Food and Environment; The Hebrew University of Jerusalem; Jerusalem Israel
| | - Sigal Meirovich
- Vornia Biomaterials Ltd.; Galway Ireland
- Robert H. Smith Faculty of Agriculture; Food and Environment; The Hebrew University of Jerusalem; Jerusalem Israel
| | - Anna Sorushanova
- Regenerative; Modular and Developmental Engineering Laboratory (REMODEL); Biosciences Research Building, National University of Ireland Galway (NUI Galway); Galway Ireland
- Network of Excellence for Functional Biomaterials (NFB), Biosciences Research Building, National University of Ireland Galway (NUI Galway); Galway Ireland
- CURAM-Centre for Research in Medical Devices, Biosciences Research Building, National University of Ireland Galway (NUI Galway); Galway Ireland
| | | | - Mohsen Miraftab
- Vornia Biomaterials Ltd.; Galway Ireland
- Institute of Materials Research and Innovation, University of Bolton; Bolton UK
| | - Oded Shoseyov
- Robert H. Smith Faculty of Agriculture; Food and Environment; The Hebrew University of Jerusalem; Jerusalem Israel
| | | | - Abhay Pandit
- Network of Excellence for Functional Biomaterials (NFB), Biosciences Research Building, National University of Ireland Galway (NUI Galway); Galway Ireland
- CURAM-Centre for Research in Medical Devices, Biosciences Research Building, National University of Ireland Galway (NUI Galway); Galway Ireland
| | - Dimitrios I. Zeugolis
- Regenerative; Modular and Developmental Engineering Laboratory (REMODEL); Biosciences Research Building, National University of Ireland Galway (NUI Galway); Galway Ireland
- Network of Excellence for Functional Biomaterials (NFB), Biosciences Research Building, National University of Ireland Galway (NUI Galway); Galway Ireland
- CURAM-Centre for Research in Medical Devices, Biosciences Research Building, National University of Ireland Galway (NUI Galway); Galway Ireland
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Almeida HV, Cunniffe GM, Vinardell T, Buckley CT, O'Brien FJ, Kelly DJ. Coupling Freshly Isolated CD44(+) Infrapatellar Fat Pad-Derived Stromal Cells with a TGF-β3 Eluting Cartilage ECM-Derived Scaffold as a Single-Stage Strategy for Promoting Chondrogenesis. Adv Healthc Mater 2015; 4:1043-53. [PMID: 25656563 DOI: 10.1002/adhm.201400687] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2014] [Revised: 01/09/2015] [Indexed: 12/21/2022]
Abstract
An alternative strategy to the use of in vitro expanded cells in regenerative medicine is the use of freshly isolated stromal cells, where a bioactive scaffold is used to provide an environment conducive to proliferation and tissue-specific differentiation in vivo. The objective of this study is to develop a cartilage extracellular matrix (ECM)-derived scaffold that could facilitate the rapid proliferation and chondrogenic differentiation of freshly isolated stromal cells. By freeze-drying cryomilled cartilage ECM of differing concentrations, it is possible to produce scaffolds with a range of pore sizes. The migration, proliferation, and chondrogenic differentiation of infrapatellar fat pad-derived stem cells (FPSCs) depend on the concentration/porosity of these scaffolds, with greater sulphated glycosaminoglycan (sGAG) accumulation observed in scaffolds with larger-sized pores. It is then sought to determine if freshly isolated fat pad-derived stromal cells, seeded onto a transforming growth factor (TGF)-β3 eluting ECM-derived scaffold, could promote chondrogenesis in vivo. While a more cartilage-like tissue could be generated using culture expanded FPSCs compared to nonenriched freshly isolated cells, fresh CD44(+) stromal cells are capable of producing a tissue in vivo that stained strongly for sGAGs and type II collagen. These findings open up new possibilities for in-theatre cell-based therapies for joint regeneration.
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Affiliation(s)
- Henrique V. Almeida
- Trinity Centre for Bioengineering; Trinity Biomedical Sciences Institute, Trinity College Dublin; Dublin 2 Ireland
- Department of Mechanical and Manufacturing Engineering; School of Engineering, Trinity College Dublin; Dublin 2 Ireland
| | - Gráinne M. Cunniffe
- Trinity Centre for Bioengineering; Trinity Biomedical Sciences Institute, Trinity College Dublin; Dublin 2 Ireland
- Department of Mechanical and Manufacturing Engineering; School of Engineering, Trinity College Dublin; Dublin 2 Ireland
| | - Tatiana Vinardell
- School of Agriculture and Food Science; University College Dublin; Belfield Dublin 4 Ireland
| | - Conor T. Buckley
- Trinity Centre for Bioengineering; Trinity Biomedical Sciences Institute, Trinity College Dublin; Dublin 2 Ireland
- Department of Mechanical and Manufacturing Engineering; School of Engineering, Trinity College Dublin; Dublin 2 Ireland
| | - Fergal J. O'Brien
- Trinity Centre for Bioengineering; Trinity Biomedical Sciences Institute, Trinity College Dublin; Dublin 2 Ireland
- Department of Anatomy; Royal College of Surgeons in Ireland; Dublin 2 Ireland
- Advanced Materials and Bioengineering Research Centre (AMBER); Trinity College Dublin and RCSI; Dublin 2 Ireland
| | - Daniel J. Kelly
- Trinity Centre for Bioengineering; Trinity Biomedical Sciences Institute, Trinity College Dublin; Dublin 2 Ireland
- Department of Mechanical and Manufacturing Engineering; School of Engineering, Trinity College Dublin; Dublin 2 Ireland
- Department of Anatomy; Royal College of Surgeons in Ireland; Dublin 2 Ireland
- Advanced Materials and Bioengineering Research Centre (AMBER); Trinity College Dublin and RCSI; Dublin 2 Ireland
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Zhou Y, Yao H, Wang J, Wang D, Liu Q, Li Z. Greener synthesis of electrospun collagen/hydroxyapatite composite fibers with an excellent microstructure for bone tissue engineering. Int J Nanomedicine 2015; 10:3203-15. [PMID: 25995630 PMCID: PMC4425318 DOI: 10.2147/ijn.s79241] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
In bone tissue engineering, collagen/hydroxyapatite (HAP) fibrous composite obtained via electrospinning method has been demonstrated to support the cells' adhesion and bone regeneration. However, electrospinning of natural collagen often requires the use of cytotoxic organic solvents, and the HAP crystals were usually aggregated and randomly distributed within a fibrous matrix of collagen, limiting their clinical potential. Here, an effective and greener method for the preparation of collagen/HAP composite fibers was developed for the first time, and this green product not only had 40 times higher mechanical properties than that previously reported, but also had an excellent microstructure similar to that of natural bone. By dissolving type I collagen in environmentally friendly phosphate buffered saline/ethanol solution instead of the frequently-used cytotoxic organic solvents, followed with the key step of desalination, co-electrospinning the collagen solution with the HAP sol, generates a collagen/HAP composite with a uniform and continuous fibrous morphology. Interestingly, the nano-HAP needles were found to preferentially orient along the longitudinal direction of the collagen fibers, which mimicked the nanostructure of natural bones. Based on the characterization of the related products, the formation mechanism for this novel phenomenon was proposed. After cross-linking with 1-ethyl-3-(3-dimethyl-aminopropyl)-1-carbodiimide hydrochloride/N-hydroxysuccinimide, the obtained composite exhibited a significant enhancement in mechanical properties. In addition, the biocompatibility of the obtained composite fibers was evaluated by in vitro culture of the human myeloma cells (U2-OS). Taken together, the process outlined herein provides an effective, non-toxic approach for the fabrication of collagen/HAP composite nanofibers that could be good candidates for bone tissue engineering.
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Affiliation(s)
- Yuanyuan Zhou
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, People’s Republic of China
- Institute of Enviromental and Municipal Engineering, North China University of Water Resources and Electric Power, Zhengzhou, People’s Republic of China
| | - Hongchang Yao
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, People’s Republic of China
| | - Jianshe Wang
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, People’s Republic of China
| | - Dalu Wang
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, People’s Republic of China
| | - Qian Liu
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, People’s Republic of China
| | - Zhongjun Li
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, People’s Republic of China
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35
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K J, Naskar D, Kundu SC, James NR. Fabrication of cationized gelatin nanofibers by electrospinning for tissue regeneration. RSC Adv 2015. [DOI: 10.1039/c5ra10384c] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A green fabrication approach has been developed to produce biocompatible and non-cytotoxic cationically modified gelatin nanofibers with enhanced biological performance.
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Affiliation(s)
- Jalaja K
- Department of Chemistry
- Indian Institute of Space Science and Technology
- Thiruvananthapuram-695 547
- India
| | - Deboki Naskar
- Department of Biotechnology
- Indian Institute of Technology Kharagpur
- India
| | - Subhas C. Kundu
- Department of Biotechnology
- Indian Institute of Technology Kharagpur
- India
| | - Nirmala Rachel James
- Department of Chemistry
- Indian Institute of Space Science and Technology
- Thiruvananthapuram-695 547
- India
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36
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Balakrishnan S, Selvam R, Sundar K, Chittibabu S, Ramamoorthy U, Kannan CBN. Studies on calcification efficacy of stingray fish skin collagen for possible use as scaffold for bone regeneration. Tissue Eng Regen Med 2014. [DOI: 10.1007/s13770-014-0075-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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37
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Ma B, Wang X, Wu C, Chang J. Crosslinking strategies for preparation of extracellular matrix-derived cardiovascular scaffolds. Regen Biomater 2014; 1:81-9. [PMID: 26816627 PMCID: PMC4669006 DOI: 10.1093/rb/rbu009] [Citation(s) in RCA: 114] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2014] [Accepted: 08/22/2014] [Indexed: 12/19/2022] Open
Abstract
Heart valve and blood vessel replacement using artificial prostheses is an effective strategy for the treatment of cardiovascular disease at terminal stage. Natural extracellular matrix (ECM)-derived materials (decellularized allogeneic or xenogenic tissues) have received extensive attention as the cardiovascular scaffold. However, the bioprosthetic grafts usually far less durable and undergo calcification and progressive structural deterioration. Glutaraldehyde (GA) is a commonly used crosslinking agent for improving biocompatibility and durability of the natural scaffold materials. However, the nature ECM and GA-crosslinked materials may result in calcification and eventually lead to the transplant failure. Therefore, studies have been conducted to explore new crosslinking agents. In this review, we mainly focused on research progress of ECM-derived cardiovascular scaffolds and their crosslinking strategies.
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Affiliation(s)
- Bing Ma
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050, People's Republic of China
| | - Xiaoya Wang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050, People's Republic of China
| | - Chengtie Wu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050, People's Republic of China
| | - Jiang Chang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050, People's Republic of China
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Controlled release of transforming growth factor-β3 from cartilage-extra-cellular-matrix-derived scaffolds to promote chondrogenesis of human-joint-tissue-derived stem cells. Acta Biomater 2014; 10:4400-9. [PMID: 24907658 DOI: 10.1016/j.actbio.2014.05.030] [Citation(s) in RCA: 82] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2014] [Revised: 05/13/2014] [Accepted: 05/27/2014] [Indexed: 01/12/2023]
Abstract
The objective of this study was to develop a scaffold derived from cartilaginous extracellular matrix (ECM) that could be used as a growth factor delivery system to promote chondrogenesis of stem cells. Dehydrothermal crosslinked scaffolds were fabricated using a slurry of homogenized porcine articular cartilage, which was then seeded with human infrapatellar-fat-pad-derived stem cells (FPSCs). It was found that these ECM-derived scaffolds promoted superior chondrogenesis of FPSCs when the constructs were additionally stimulated with transforming growth factor (TGF)-β3. Cell-mediated contraction of the scaffold was observed, which could be limited by the additional use of 1-ethyl-3-3dimethyl aminopropyl carbodiimide (EDAC) crosslinking without suppressing cartilage-specific matrix accumulation within the construct. To further validate the utility of the ECM-derived scaffold, we next compared its chondro-permissive properties to a biomimetic collagen-hyaluronic acid (HA) scaffold optimized for cartilage tissue engineering (TE) applications. The cartilage-ECM-derived scaffold supported at least comparable chondrogenesis to the collagen-HA scaffold, underwent less contraction and retained a greater proportion of synthesized sulfated glycosaminoglycans. Having developed a promising scaffold for TE, with superior chondrogenesis observed in the presence of exogenously supplied TGF-β3, the final phase of the study explored whether this scaffold could be used as a TGF-β3 delivery system to promote chondrogenesis of FPSCs. It was found that the majority of TGF-β3 that was loaded onto the scaffold was released in a controlled manner over the first 10days of culture, with comparable long-term chondrogenesis observed in these TGF-β3-loaded constructs compared to scaffolds where the TGF-β3 was continuously added to the media. The results of this study support the use of cartilage-ECM-derived scaffolds as a growth factor delivery system for use in articular cartilage regeneration.
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Immobilization of murine anti-BMP-2 monoclonal antibody on various biomaterials for bone tissue engineering. BIOMED RESEARCH INTERNATIONAL 2014; 2014:940860. [PMID: 25147826 PMCID: PMC4132312 DOI: 10.1155/2014/940860] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/06/2014] [Accepted: 07/02/2014] [Indexed: 11/18/2022]
Abstract
Biomaterials are widely used as scaffolds for tissue engineering. We have developed a strategy for bone tissue engineering that entails application of immobilized anti-BMP-2 monoclonal antibodies (mAbs) to capture endogenous BMPs in vivo and promote antibody-mediated osseous regeneration (AMOR). The purpose of the current study was to compare the efficacy of immobilization of a specific murine anti-BMP-2 mAb on three different types of biomaterials and to evaluate their suitability as scaffolds for AMOR. Anti-BMP-2 mAb or isotype control mAb was immobilized on titanium (Ti) microbeads, alginate hydrogel, and ACS. The treated biomaterials were surgically implanted in rat critical-sized calvarial defects. After 8 weeks, de novo bone formation was assessed using micro-CT and histomorphometric analyses. Results showed de novo bone regeneration with all three scaffolds with immobilized anti-BMP-2 mAb, but not isotype control mAb. Ti microbeads showed the highest volume of bone regeneration, followed by ACS. Alginate showed the lowest volume of bone. Localization of BMP-2, -4, and -7 antigens was detected on all 3 scaffolds with immobilized anti-BMP-2 mAb implanted in calvarial defects. Altogether, these data suggested a potential mechanism for bone regeneration through entrapment of endogenous BMP-2, -4, and -7 proteins leading to bone formation using different types of scaffolds via AMOR.
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40
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Boekema BKHL, Vlig M, Olde Damink L, Middelkoop E, Eummelen L, Bühren AV, Ulrich MMW. Effect of pore size and cross-linking of a novel collagen-elastin dermal substitute on wound healing. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2014; 25:423-433. [PMID: 24178984 DOI: 10.1007/s10856-013-5075-2] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2013] [Accepted: 10/12/2013] [Indexed: 06/02/2023]
Abstract
Collagen-elastin (CE) scaffolds are frequently used for dermal replacement in the treatment of full-thickness skin defects such as burn wounds. But little is known about the optimal pore size and level of cross-linking. Different formulations of dermal substitutes with unidirectional pores were tested in porcine full-thickness wounds in combination with autologous split skin mesh grafts (SSG). Effect on wound healing was evaluated both macro- and microscopically. CE scaffolds with a pore size of 80 or 100 μm resulted in good wound healing after one-stage grafting. Application of scaffolds with a larger average pore size (120 μm) resulted in more myofibroblasts and more foreign body giant cells (FBGC). Moderate crosslinking impaired wound healing as it resulted in more wound contraction, more FBGC and increased epidermal thickness compared to no cross-linking. In addition, take rate and redness were negatively affected compared to SSG only. Vascularization and the number of myofibroblasts were not affected by cross-linking. Surprisingly, stability of cross-linked scaffolds was not increased in the wound environment, in contrast to in vitro results. Cross-linking reduced the proliferation of fibroblasts in vitro, which might explain the reduced clinical outcome. The non-cross-linked CE substitute with unidirectional pores allowed one-stage grafting of SSG, resulting in good wound healing. In addition, only a very mild foreign body reaction was observed. Cross-linking of CE scaffolds negatively affected wound healing on several important parameters. The optimal non-cross-linked CE substitute is a promising candidate for future clinical evaluation.
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Affiliation(s)
- Bouke K H L Boekema
- Association of Dutch Burn Centres, PO Box 15, 1991 AJ, Beverwijk, The Netherlands,
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41
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Alberti KA, Hopkins AM, Tang-Schomer MD, Kaplan DL, Xu Q. The behavior of neuronal cells on tendon-derived collagen sheets as potential substrates for nerve regeneration. Biomaterials 2014; 35:3551-7. [PMID: 24461939 DOI: 10.1016/j.biomaterials.2013.12.082] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2013] [Accepted: 12/22/2013] [Indexed: 10/25/2022]
Abstract
Peripheral nervous system injuries result in a decreased quality of life, and generally require surgical intervention for repair. Currently, the gold standard of nerve autografting, based on the use of host tissue such as sensory nerves is suboptimal as it results in donor-site loss of function and requires a secondary surgery. Nerve guidance conduits fabricated from natural polymers such as collagen are a common alternative to bridge nerve defects. In the present work, tendon sections derived through a process named bioskiving were studied for their potential for use as a substrate to fabricate nerve guidance conduits. We show that cells such as rat Schwann cells adhere, proliferate, and align along the fibrous tendon substrate which has been shown to result in a more mature phenotype. Additionally we demonstrate that chick dorsal root ganglia explants cultured on the tendon grow to similar lengths compared to dorsal root ganglia cultured on collagen gels, but also grow in a more oriented manner on the tendon sections. These results show that tendon sections produced through bioskiving can support directional nerve growth and may be of use as a substrate for the fabrication of nerve guidance conduits.
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Affiliation(s)
- Kyle A Alberti
- Department of Biomedical Engineering, Tufts University, 4 Colby Street, Medford, MA 02155, USA.
| | - Amy M Hopkins
- Department of Biomedical Engineering, Tufts University, 4 Colby Street, Medford, MA 02155, USA.
| | - Min D Tang-Schomer
- Department of Biomedical Engineering, Tufts University, 4 Colby Street, Medford, MA 02155, USA.
| | - David L Kaplan
- Department of Biomedical Engineering, Tufts University, 4 Colby Street, Medford, MA 02155, USA.
| | - Qiaobing Xu
- Department of Biomedical Engineering, Tufts University, 4 Colby Street, Medford, MA 02155, USA.
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Bozkurt A, Apel C, Sellhaus B, van Neerven S, Wessing B, Hilgers RD, Pallua N. Differences in degradation behavior of two non-cross-linked collagen barrier membranes: anin vitroandin vivostudy. Clin Oral Implants Res 2013; 25:1403-11. [DOI: 10.1111/clr.12284] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ahmet Bozkurt
- Department of Plastic Surgery, Reconstructive and Hand Surgery; Medical Faculty; Burn Center; RWTH Aachen University; Aachen Germany
| | - Christian Apel
- Department of Conservative Dentistry, Periodontology and Preventive Dentistry; RWTH Aachen University; Aachen Germany
| | - Bernd Sellhaus
- Institute of Neuropathology; RWTH Aachen University; Aachen Germany
| | - Sabien van Neerven
- Department of Plastic Surgery, Reconstructive and Hand Surgery; Medical Faculty; Burn Center; RWTH Aachen University; Aachen Germany
| | | | | | - Norbert Pallua
- Department of Plastic Surgery, Reconstructive and Hand Surgery; Medical Faculty; Burn Center; RWTH Aachen University; Aachen Germany
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Kirk JF, Ritter G, Finger I, Sankar D, Reddy JD, Talton JD, Nataraj C, Narisawa S, Millán JL, Cobb RR. Mechanical and biocompatible characterization of a cross-linked collagen-hyaluronic acid wound dressing. BIOMATTER 2013; 3:25633. [PMID: 23896569 PMCID: PMC3866196 DOI: 10.4161/biom.25633] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Collagen scaffolds have been widely employed as a dermal equivalent to induce fibroblast infiltrations and dermal regeneration in the treatment of chronic wounds and diabetic foot ulcers. Cross-linking methods have been developed to address the disadvantages of the rapid degradation associated with collagen-based scaffolds. To eliminate the potential drawbacks associated with glutaraldehyde cross-linking, methods using a water soluble carbodiimide have been developed. In the present study, the glycosaminoglycan (GAG) hyaluronic acid (HA), was covalently attached to an equine tendon derived collagen scaffold using 1-ethyl-3-(3-dimethyl aminopropyl) carbodiimide (EDC) to create ntSPONGE™. The HA was shown to be homogeneously distributed throughout the collagen matrix. In vitro analyses of the scaffold indicated that the cross-linking enhanced the biological stability by decreasing the enzymatic degradation and increasing the thermal denaturation temperature. The material was shown to support the attachment and proliferation of mouse L929 fibroblast cells. In addition, the cross-linking decreased the resorption rate of the collagen as measured in an intramuscular implant model in rabbits. The material was also shown to be biocompatible in a variety of in vitro and in vivo assays. These results indicate that this cross-linked collagen-HA scaffold, ntSPONGE™, has the potential for use in chronic wound healing.
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Affiliation(s)
- James F Kirk
- Research and Development Department; Nanotherapeutics, Inc.; Alachua, FL USA
| | - Gregg Ritter
- Research and Development Department; Nanotherapeutics, Inc.; Alachua, FL USA
| | - Isaac Finger
- Research and Development Department; Nanotherapeutics, Inc.; Alachua, FL USA
| | - Dhyana Sankar
- Research and Development Department; Nanotherapeutics, Inc.; Alachua, FL USA
| | - Joseph D Reddy
- Research and Development Department; Nanotherapeutics, Inc.; Alachua, FL USA
| | - James D Talton
- Research and Development Department; Nanotherapeutics, Inc.; Alachua, FL USA
| | | | - Sonoko Narisawa
- Sanford-Burnham Medical Research Institute; La Jolla, CA USA
| | | | - Ronald R Cobb
- Research and Development Department; Nanotherapeutics, Inc.; Alachua, FL USA
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Scheffel DLS, Hebling J, Scheffel RH, Agee K, Turco G, de Souza Costa CA, Pashley D. Inactivation of matrix-bound matrix metalloproteinases by cross-linking agents in acid-etched dentin. Oper Dent 2013; 39:152-8. [PMID: 23786610 DOI: 10.2341/12-425-l] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
OBJECTIVES Published transmission electron microscopy analysis of in vitro resin-dentin bonds shows that, after 44 months, almost 70% of collagen fibrils from the hybrid layer disappear. Matrix metalloproteinases (MMPs) play an important role in that process and are thought to be the main factor responsible for the solubilization of dentin collagen. Therefore, this study aimed to evaluate the inactivation of matrix-bound MMPs by two different cross-linking agents, carbodiimide (EDC) or proanthocyanidin (PA), or the MMP-inhibitor, chlorhexidine (CHX), on acid-etched dentin using a simplified MMP assay method. MATERIALS AND METHODS Dentin beams (2×1×6 mm) were obtained from mid-coronal dentin of sound third molars and randomly divided into six groups (G) according to the dentin treatment: G1: Deionized water (control); G2: 0.1 M EDC; G3: 0.5 M EDC; G4: 0.5 M EDC + 35% hydroxyethyl methacrylate (HEMA); G5: 5% PA; and G6: 2% CHX. The beams were etched for 15 seconds with 37% phosphoric acid, rinsed, and then immersed for 60 seconds in one of the treatment solutions. The data were expressed both in absorbance values at 412 nm and in MMP-9 activity equivalents. The total MMP activity of dentin was analyzed for one hour by colorimetric assay (Sensolyte). Data were submitted to Wilcoxon nonparametric test and Mann-Whitney tests (p>0.05). RESULTS All experimental cross-linking solutions significantly reduced MMP activity from 79.8% to 95.2% when compared to the control group. No difference was observed among 0.1 M EDC (84.8%), 5% PA (87.6%), and 2% CHX (79.8%). Addition of 35% HEMA to 0.5 M EDC produced inactivation (95.2%) that was similar to that of 0.5 M EDC alone (92.7%). CONCLUSION Dentin treatment with cross-linking agents is effective to significantly reduce MMP activity. Mixing 0.5 M EDC and 35% HEMA did not influence EDC inhibitor potential.
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Sarkar SD, Farrugia BL, Dargaville TR, Dhara S. Chitosan-collagen scaffolds with nano/microfibrous architecture for skin tissue engineering. J Biomed Mater Res A 2013; 101:3482-92. [DOI: 10.1002/jbm.a.34660] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2012] [Revised: 01/24/2013] [Accepted: 02/04/2013] [Indexed: 12/16/2022]
Affiliation(s)
- Soumi Dey Sarkar
- School of Medical Science and Technology; Indian Institute of Technology Kharagpur; Kharagpur 721302 India
| | - Brooke L. Farrugia
- Institute of Health and Biomedical Innovation; Queensland University of Technology; Kelvin Grove Queensland 4059 Australia
| | - Tim R. Dargaville
- Institute of Health and Biomedical Innovation; Queensland University of Technology; Kelvin Grove Queensland 4059 Australia
| | - Santanu Dhara
- School of Medical Science and Technology; Indian Institute of Technology Kharagpur; Kharagpur 721302 India
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Effect of fish collagen modification on its thermal and rheological properties. Int J Biol Macromol 2012; 53:32-7. [PMID: 23123959 DOI: 10.1016/j.ijbiomac.2012.10.026] [Citation(s) in RCA: 75] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2012] [Revised: 09/22/2012] [Accepted: 10/22/2012] [Indexed: 11/21/2022]
Abstract
This report describes the effects of different methods of silver carp collagen crosslinking on its properties, particularly their thermal, mechanical viscoelastic and biological behavior. Enzymatic analyses and determination of the degree of crosslinking showed the stabilizing effect of both dehydrothermal (DHT) and 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide (EDC)/N-hydroxysuccinimide (NHS) treatments on fish collagen. The results of the thermal (DSC) measurements demonstrated that collagen crosslinked by EDC/NHS ensured a high thermal stability compared with collagen crosslinked dehydrothermally. The denaturation temperature (T(d)) of unmodified collagen samples increased from 77 to 80°C and 88°C for DHT- and EDC/NHS-treated collagen, respectively. The influence of DHT or EDC/NHS crosslinking on the viscoelastic behavior of fish collagen was elaborated by a shift of the tan δ(max) peak toward higher temperatures resulting in higher thermostability of the modified collagen samples.
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Pui CL, Tang ME, Annor AH, Ebersole GC, Frisella MM, Matthews BD, Deeken CR. Effect of Repetitive Loading on the Mechanical Properties of Biological Scaffold Materials. J Am Coll Surg 2012; 215:216-28. [DOI: 10.1016/j.jamcollsurg.2012.03.006] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2012] [Revised: 03/12/2012] [Accepted: 03/12/2012] [Indexed: 10/28/2022]
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48
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Pati F, Adhikari B, Dhara S. Collagen Intermingled Chitosan-Tripolyphosphate Nano/Micro Fibrous Scaffolds for Tissue-Engineering Application. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2012; 23:1923-38. [DOI: 10.1163/092050611x599319] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- Falguni Pati
- a School of Medical Science and Technology, Indian Institute of Technology , Kharagpur , 721302 , India
| | - Basudam Adhikari
- b Materials Science Centre, Indian Institute of Technology , Kharagpur , 721302 , India
| | - Santanu Dhara
- a School of Medical Science and Technology, Indian Institute of Technology , Kharagpur , 721302 , India
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Satyam A, Subramanian GS, Raghunath M, Pandit A, Zeugolis DI. In vitroevaluation of Ficoll-enriched and genipin-stabilised collagen scaffolds. J Tissue Eng Regen Med 2012; 8:233-41. [DOI: 10.1002/term.1522] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2011] [Revised: 02/14/2012] [Accepted: 03/08/2012] [Indexed: 01/08/2023]
Affiliation(s)
- A. Satyam
- Network of Excellence for Functional Biomaterials; National University of Ireland Galway; Galway Ireland
- Department of Mechanical & Biomedical Engineering; National University of Ireland Galway; Galway Ireland
| | - G. S. Subramanian
- Tissue Modulation Laboratory; National University of Singapore; Singapore
- Division of Bioengineering, Faculty of Engineering; National University of Singapore; Singapore
| | - M. Raghunath
- Tissue Modulation Laboratory; National University of Singapore; Singapore
- Division of Bioengineering, Faculty of Engineering; National University of Singapore; Singapore
| | - A. Pandit
- Network of Excellence for Functional Biomaterials; National University of Ireland Galway; Galway Ireland
| | - D. I. Zeugolis
- Network of Excellence for Functional Biomaterials; National University of Ireland Galway; Galway Ireland
- Department of Mechanical & Biomedical Engineering; National University of Ireland Galway; Galway Ireland
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Effect of enzymatic degradation on the mechanical properties of biological scaffold materials. Surg Endosc 2012; 26:2767-78. [PMID: 22538685 DOI: 10.1007/s00464-012-2277-5] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2012] [Accepted: 03/24/2012] [Indexed: 12/22/2022]
Abstract
BACKGROUND Biological scaffolds must support a complex balance of resisting enzymatic degradation while promoting tissue remodeling. Thus, the purpose of this study was to evaluate the effects of in vitro enzymatic exposure on the mechanical properties of biological scaffolds. It was hypothesized that exposure to an enzyme solution would result in decreased tensile strength and that crosslinked scaffolds would resist enzymatic degradation more effectively than noncrosslinked scaffolds. METHODS Nine scaffolds were evaluated (four porcine dermis: Permacol™, CollaMend™, Strattice™, XenMatrix™; two human dermis: AlloMax™, FlexHD(®); two bovine pericardium: Veritas(®), PeriGuard(®); and one porcine small intestine submucosa: Surgisis™). Ten specimens (n = 10) were hydrated in saline at 37 °C and subjected to uniaxial testing to establish baseline properties. 50 specimens (n = 50) were incubated in collagenase solution at 37 °C for 2, 6, 12, 24, or 30 h (n = 10 each group) followed by uniaxial tensile testing. RESULTS Tensile strength was significantly reduced after 30 h for CollaMend™, AlloMax™, Veritas(®), Strattice™, XenMatrix™, Permacol™, and FlexHD(®) (p < 0.01), while PeriGuard(®) demonstrated a slight increase in tensile strength (p = 0.0188). Crosslinked bovine pericardium (PeriGuard(®)) maintained greater tensile strength than noncrosslinked bovine pericardium (Veritas(®)) throughout all exposure periods (p < 0.0001). Similarly, crosslinked porcine dermis (Permacol™) maintained greater tensile strength than noncrosslinked porcine dermis (Strattice™ and XenMatrix™) throughout all exposure periods (p < 0.0001). CONCLUSIONS Materials that deteriorate rapidly after in vitro enzymatic exposure may also deteriorate rapidly in vivo, particularly when exposed to a wound environment with elevated levels of matrix metalloproteinases. Permacol™, CollaMend™, Strattice™, FlexHD(®), and PeriGuard(®) survived the longest incubation period (30 h) and withstood mechanical testing. XenMatrix™, AlloMax™, Veritas(®), and Surgisis™ degraded more quickly and did not survive the longer exposure periods. Scaffolds that maintain strength characteristics after in vitro collagenase exposure may be advantageous for long-term hernia repair scenarios where elevated enzyme levels are expected.
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