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Wagner Q, Offner D, Idoux-Gillet Y, Saleem I, Somavarapu S, Schwinté P, Benkirane-Jessel N, Keller L. Advanced nanostructured medical device combining mesenchymal cells and VEGF nanoparticles for enhanced engineered tissue vascularization. Nanomedicine (Lond) 2016; 11:2419-30. [PMID: 27529130 DOI: 10.2217/nnm-2016-0189] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
AIM Success of functional vascularized tissue repair depends on vascular support system supply and still remains challenging. Our objective was to develop a nanoactive implant enhancing endothelial cell activity, particularly for bone tissue engineering in the regenerative medicine field. MATERIALS & METHODS We developed a new strategy of tridimensional implant based on cell-dependent sustained release of VEGF nanoparticles. These nanoparticles were homogeneously distributed within nanoreservoirs onto the porous scaffold, with quicker reorganization of endothelial cells. Moreover, the activity of this active smart implant on cells was also modulated by addition of osteoblastic cells. RESULTS & CONCLUSION This sophisticated active strategy should potentiate efficiency of current therapeutic implants for bone repair, avoiding the need for bone substitutes.
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Affiliation(s)
- Quentin Wagner
- INSERM (French National Institute of Health & Medical Research), "Osteoarticular & Dental Regenerative Nanomedicine" Laboratory, UMR 1109, Faculté de Médecine, F-67085 Strasbourg Cedex. FMTS, France.,Université de Strasbourg, Faculté de Chirurgie Dentaire, 1 place de l'Hôpital, F-67000 Strasbourg, France
| | - Damien Offner
- INSERM (French National Institute of Health & Medical Research), "Osteoarticular & Dental Regenerative Nanomedicine" Laboratory, UMR 1109, Faculté de Médecine, F-67085 Strasbourg Cedex. FMTS, France.,Université de Strasbourg, Faculté de Chirurgie Dentaire, 1 place de l'Hôpital, F-67000 Strasbourg, France
| | - Ysia Idoux-Gillet
- INSERM (French National Institute of Health & Medical Research), "Osteoarticular & Dental Regenerative Nanomedicine" Laboratory, UMR 1109, Faculté de Médecine, F-67085 Strasbourg Cedex. FMTS, France.,Université de Strasbourg, Faculté de Chirurgie Dentaire, 1 place de l'Hôpital, F-67000 Strasbourg, France
| | - Imran Saleem
- School of Pharmacy & Biomolecular Sciences, Liverpool John Moores University, Liverpool, L3 3AF, UK
| | - Satyanarayana Somavarapu
- Department of Pharmaceutics, School of Pharmacy, University College London, 29-39 Brunswick Square, London, WC1N 1AX, UK
| | - Pascale Schwinté
- INSERM (French National Institute of Health & Medical Research), "Osteoarticular & Dental Regenerative Nanomedicine" Laboratory, UMR 1109, Faculté de Médecine, F-67085 Strasbourg Cedex. FMTS, France.,Université de Strasbourg, Faculté de Chirurgie Dentaire, 1 place de l'Hôpital, F-67000 Strasbourg, France
| | - Nadia Benkirane-Jessel
- INSERM (French National Institute of Health & Medical Research), "Osteoarticular & Dental Regenerative Nanomedicine" Laboratory, UMR 1109, Faculté de Médecine, F-67085 Strasbourg Cedex. FMTS, France.,Université de Strasbourg, Faculté de Chirurgie Dentaire, 1 place de l'Hôpital, F-67000 Strasbourg, France
| | - Laetitia Keller
- INSERM (French National Institute of Health & Medical Research), "Osteoarticular & Dental Regenerative Nanomedicine" Laboratory, UMR 1109, Faculté de Médecine, F-67085 Strasbourg Cedex. FMTS, France.,Université de Strasbourg, Faculté de Chirurgie Dentaire, 1 place de l'Hôpital, F-67000 Strasbourg, France
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102
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Miranda-Nieves D, Chaikof EL. Collagen and Elastin Biomaterials for the Fabrication of Engineered Living Tissues. ACS Biomater Sci Eng 2016; 3:694-711. [PMID: 33440491 DOI: 10.1021/acsbiomaterials.6b00250] [Citation(s) in RCA: 91] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Collagen and elastin represent the two most predominant proteins in the body and are responsible for modulating important biological and mechanical properties. Thus, the focus of this review is the use of collagen and elastin as biomaterials for the fabrication of living tissues. Considering the importance of both biomaterials, we first propose the notion that many tissues in the human body represent a reinforced composite of collagen and elastin. In the rest of the review, collagen and elastin biosynthesis and biophysics, as well as molecular sources and biomaterial fabrication methodologies, including casting, fiber spinning, and bioprinting, are discussed. Finally, we summarize the current attempts to fabricate a subset of living tissues and, based on biochemical and biomechanical considerations, suggest that future tissue-engineering efforts consider direct incorporation of collagen and elastin biomaterials.
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Affiliation(s)
- David Miranda-Nieves
- Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States.,Department of Surgery, Harvard Medical School, Beth Israel Deaconess Medical Center, Boston, Massachusetts 02215, United States
| | - Elliot L Chaikof
- Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States.,Department of Surgery, Harvard Medical School, Beth Israel Deaconess Medical Center, Boston, Massachusetts 02215, United States.,Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, Massachusetts 02215, United States
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103
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Hu K, Lv Q, Cui F, Xu L, Jiao Y, Wang Y, Feng Q, Wang H, Huang L. A Novel Poly(L-lactide) (PLLA)/Fibroin Hybrid Scaffold to Promote Hepatocyte Viability and Decrease Macrophage Responses. J BIOACT COMPAT POL 2016. [DOI: 10.1177/0883911507079893] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The purpose of this study was to evaluate the hepatocellular compatibility and assess the inflammatory response of a novel hybrid scaffold of poly(L-lactide) (PLLA) and fibroin. The hybrid scaffold was obtained by freezing and lyophilizing a blend of fibroin microspheres and PLLA solution. FTIR and scanning electron microscopy (SEM) analysis indicated that fibroin microspheres were on the surface of the hybrid scaffold. Compared to the PLLA scaffold, SEM and laser scanning confocal microscope (LSCM) analyses showed that the human hepatocellular carcinoma HepG2 cells had spread and proliferated much more in the hybrid scaffold. The MTT (3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyltetrazolium bromide) assays indicated a greater number of cells in this hybrid scaffold. Furthermore, a mouse RAW264.7 macrophages cell line was utilized to characterize and compare the mRNA profiles of TNF-alpha using real time-polymerase chain reaction (RT-PCR). The inflammatory response of the macrophages grown in the PLLA/fibroin scaffold rapidly declined compared to those in the PLLA scaffold and reached the level of cells grown in Dulbecco's Modified Eagle Medium (DMEM). The hepatocellular compatibility and lower level of inflammatory response makes the PLLA/fibroin scaffold a promising candidate for hepatic tissue engineering.
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Affiliation(s)
- K. Hu
- Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, People's Republic of China
| | - Q. Lv
- Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, People's Republic of China
| | - F.Z. Cui
- Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, People's Republic of China,
| | - L. Xu
- Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, People's Republic of China
| | - Y.P. Jiao
- Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, People's Republic of China
| | - Y. Wang
- Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, People's Republic of China
| | - Q.L. Feng
- Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, People's Republic of China
| | - H.L. Wang
- Beijing Institute of Biotechnology, Beijing 100071, People's Republic of China
| | - L.Y. Huang
- Beijing Institute of Biotechnology, Beijing 100071, People's Republic of China
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104
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Hu K, Lv Q, Cui FZ, Feng QL, Kong XD, Wang HL, Huang LY, Li T. Biocompatible Fibroin Blended Films with Recombinant Human-like Collagen for Hepatic Tissue Engineering. J BIOACT COMPAT POL 2016. [DOI: 10.1177/0883911506060455] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Recombinant human-like collagen (RHLC) was blended with fibroin to prepare a novel biocompatible film as a scaffold material for hepatic tissue engineering applications. Solution blending was used to incorporate RHLC with silk fibroin to enhance the blend films biocompatibility and hydrophilicity while maintaining elasticity. FTIR and XRD analysis indicated that hydrogen bonds had formed between fibroin and RHLC, while SEM microscopy data confirmed that homogeneous microstructures were still retained after the introduction of RHLC with fibroin. Contact angle measurements indicated that the hydrophilicity of the fibroin/RHLC films was greater after RHLC was added. The elongation at break in the wet state was not markedly changed after blending the recombinant human-like collagen, which implied that flexibility was maintained. The proliferation and viability of the cell cultures on fibroin/RHLC films were significantly enhanced compared to pure fibroin films or tissue culture plates.
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Affiliation(s)
- K. Hu
- Biomaterials Laboratory, Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, P.R. China
| | - Q. Lv
- Biomaterials Laboratory, Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, P.R. China
| | - F. Z. Cui
- Biomaterials Laboratory, Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, P.R. China,
| | - Q. L. Feng
- Biomaterials Laboratory, Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, P.R. China
| | - X. D. Kong
- Biomaterials Laboratory, Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, P.R. China
| | - H. L. Wang
- Beijing Institute of Biotechnology, Beijing 100071, P.R. China
| | - L. Y. Huang
- Beijing Institute of Biotechnology, Beijing 100071, P.R. China
| | - T. Li
- Beijing Institute of Biotechnology, Beijing 100071, P.R. China
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105
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Cheng TL, Schindeler A, Little DG. BMP-2 delivered via sucrose acetate isobutyrate (SAIB) improves bone repair in a rat open fracture model. J Orthop Res 2016; 34:1168-76. [PMID: 26679381 DOI: 10.1002/jor.23131] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2015] [Accepted: 12/08/2015] [Indexed: 02/04/2023]
Abstract
Human bone morphogenetic proteins (BMPs) are an alternative to bone graft for the treatment of high-energy open fractures. The standard delivery system for BMP-2 is a porous collagen sponge, but we have previously found that the biocompatible, high viscosity carrier, Sucrose acetate isobutyrate (SAIB) is an effective and potentially less invasive alternative. The efficacy of SAIB as a BMP-2 delivery system was examined in an open fracture model featuring a femoral osteotomy with periosteal stripping in 9-week-old male Sprague Dawley rats. SAIB containing BMP-2 (SAIB/BMP-2) was delivered into the fracture site during surgery and an additional group was further co-treated with zoledronic acid and hydroxyapatite nanoparticles (SAIB/BMP-2/HA/ZA). These were compared to untreated fractures and SAIB carrier alone (negative controls), and BMP-2 loaded collagen sponge (positive control). The rate of radiographic union and the biomechanical properties of the healed fractures were compared after 6-week. Untreated and SAIB-treated fractures showed poor repair, with 53% and 64%, respectively, not bridged at 6 week. In contrast, collagen/BMP-2, SAIB/BMP-2, and SAIB/BMP-2/HA/ZA showed significantly increased union (100%, 100%, and 94%, respectively, p < 0.05). Four-point bend testing revealed that collagen/BMP-2 and SAIB/BMP-2/HA/ZA restored the strength of fractured femora to that of intact femora by 6 week, whereas untreated and SAIB remained less than intact controls by 60% and 67%, respectively (p < 0.05). Overall, the SAIB/BMP-2/HA/ZA formulation was comparable to BMP-2 infused collagen sponge in terms of promoting open fractures repair, but with the additional potential for less invasive delivery. © 2015 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 34:1168-1176, 2016.
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Affiliation(s)
- Tegan L Cheng
- Orthopaedic Research and Biotechnology Unit, The Children's Hospital at Westmead, Locked Bag 4001, Westmead, Sydney, New South Wales, 2145, Australia.,Discipline of Paediatrics and Child Health, Sydney Medical School, University of Sydney, Sydney, Australia
| | - Aaron Schindeler
- Orthopaedic Research and Biotechnology Unit, The Children's Hospital at Westmead, Locked Bag 4001, Westmead, Sydney, New South Wales, 2145, Australia.,Discipline of Paediatrics and Child Health, Sydney Medical School, University of Sydney, Sydney, Australia
| | - David G Little
- Orthopaedic Research and Biotechnology Unit, The Children's Hospital at Westmead, Locked Bag 4001, Westmead, Sydney, New South Wales, 2145, Australia.,Discipline of Paediatrics and Child Health, Sydney Medical School, University of Sydney, Sydney, Australia
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106
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Zhang Z, Eyster TW, Ma PX. Nanostructured injectable cell microcarriers for tissue regeneration. Nanomedicine (Lond) 2016; 11:1611-28. [PMID: 27230960 PMCID: PMC5619097 DOI: 10.2217/nnm-2016-0083] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2016] [Accepted: 05/05/2016] [Indexed: 11/21/2022] Open
Abstract
Biodegradable polymer microspheres have emerged as cell carriers for the regeneration and repair of irregularly shaped tissue defects due to their injectability, controllable biodegradability and capacity for drug incorporation and release. Notably, recent advances in nanotechnology allowed the manipulation of the physical and chemical properties of the microspheres at the nanoscale, creating nanostructured microspheres mimicking the composition and/or structure of natural extracellular matrix. These nanostructured microspheres, including nanocomposite microspheres and nanofibrous microspheres, have been employed as cell carriers for tissue regeneration. They enhance cell attachment and proliferation, promote positive cell-carrier interactions and facilitate stem cell differentiation for target tissue regeneration. This review highlights the recent advances in nanostructured microspheres that are employed as injectable, biomimetic and cell-instructive cell carriers.
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Affiliation(s)
- Zhanpeng Zhang
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48109-1078, USA
| | - Thomas W Eyster
- Department of Biologic & Materials Sciences, University of Michigan, Ann Arbor, MI 48109-1078, USA
| | - Peter X Ma
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48109-1078, USA
- Department of Biologic & Materials Sciences, University of Michigan, Ann Arbor, MI 48109-1078, USA
- Macromolecular Science & Engineering Center, University of Michigan, Ann Arbor, MI 48109-1078, USA
- Materials Science & Engineering, University of Michigan, Ann Arbor, MI 48109-1078, USA
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107
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Schiavi J, Keller L, Morand DN, De Isla N, Huck O, Lutz JC, Mainard D, Schwinté P, Benkirane-Jessel N. Active implant combining human stem cell microtissues and growth factors for bone-regenerative nanomedicine. Nanomedicine (Lond) 2016; 10:753-63. [PMID: 25816878 DOI: 10.2217/nnm.14.228] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
AIMS Mesenchymal stem cells (MSCs) from adult bone marrow provide an exciting and promising stem cell population for the repair of bone in skeletal diseases. Here, we describe a new generation of collagen nanofiber implant functionalized with growth factor BMP-7 nanoreservoirs and equipped with human MSC microtissues (MTs) for regenerative nanomedicine. MATERIALS & METHODS By using a 3D nanofibrous collagen membrane and by adding MTs rather than single cells, we optimize the microenvironment for cell colonization, differentiation and growth. RESULTS & CONCLUSION Furthermore, in this study, we have shown that by combining BMP-7 with these MSC MTs in this double 3D environment, we further accelerate bone growth in vivo. The strategy described here should enhance the efficiency of therapeutic implants compared with current simplistic approaches used in the clinic today based on collagen implants soaked in bone morphogenic proteins.
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Affiliation(s)
- Jessica Schiavi
- INSERM UMR1109, Osteoarticular & Dental Regenerative Nanomedicine, Faculté de Médecine, FMTS, F-67085 Strasbourg Cedex, France
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108
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Akbari M, Tamayol A, Bagherifard S, Serex L, Mostafalu P, Faramarzi N, Mohammadi MH, Khademhosseini A. Textile Technologies and Tissue Engineering: A Path Toward Organ Weaving. Adv Healthc Mater 2016; 5:751-66. [PMID: 26924450 PMCID: PMC4910159 DOI: 10.1002/adhm.201500517] [Citation(s) in RCA: 102] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2015] [Revised: 09/07/2015] [Indexed: 12/14/2022]
Abstract
Textile technologies have recently attracted great attention as potential biofabrication tools for engineering tissue constructs. Using current textile technologies, fibrous structures can be designed and engineered to attain the required properties that are demanded by different tissue engineering applications. Several key parameters such as physiochemical characteristics of fibers, microarchitecture, and mechanical properties of the fabrics play important roles in the effective use of textile technologies in tissue engineering. This review summarizes the current advances in the manufacturing of biofunctional fibers. Different textile methods such as knitting, weaving, and braiding are discussed and their current applications in tissue engineering are highlighted.
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Affiliation(s)
- Mohsen Akbari
- Department of Medicine, Brigham and Women's Hospital, Biomaterials Innovation Research Center, Harvard Medical School, Cambridge, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA, 02115, USA
- Department of Mechanical Engineering, University of Victoria, Victoria, BC, V8P 5C2, Canada
| | - Ali Tamayol
- Department of Medicine, Brigham and Women's Hospital, Biomaterials Innovation Research Center, Harvard Medical School, Cambridge, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA, 02115, USA
| | - Sara Bagherifard
- Department of Medicine, Brigham and Women's Hospital, Biomaterials Innovation Research Center, Harvard Medical School, Cambridge, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Department of Mechanical Engineering, Politecnico di Milano, Milan, 20156, Italy
- David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Ludovic Serex
- Department of Medicine, Brigham and Women's Hospital, Biomaterials Innovation Research Center, Harvard Medical School, Cambridge, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Pooria Mostafalu
- Department of Medicine, Brigham and Women's Hospital, Biomaterials Innovation Research Center, Harvard Medical School, Cambridge, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA, 02115, USA
| | - Negar Faramarzi
- Department of Medicine, Brigham and Women's Hospital, Biomaterials Innovation Research Center, Harvard Medical School, Cambridge, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Mohammad Hossein Mohammadi
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Ali Khademhosseini
- Department of Medicine, Brigham and Women's Hospital, Biomaterials Innovation Research Center, Harvard Medical School, Cambridge, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA, 02115, USA
- Department of Physics, King Abdulaziz University, Jeddah, 21569, Saudi Arabia
- Department of Bioindustrial Technologies, College of Animal Bioscience and Technology, Konkuk University, Hwayang-dong, Gwangjin-gu, Seoul, 143-701, Republic of Korea
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109
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Yasui Y, Ando W, Shimomura K, Koizumi K, Ryota C, Hamamoto S, Kobayashi M, Yoshikawa H, Nakamura N. Scaffold-free, stem cell-based cartilage repair. J Clin Orthop Trauma 2016; 7:157-63. [PMID: 27489410 PMCID: PMC4949412 DOI: 10.1016/j.jcot.2016.06.002] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2016] [Accepted: 06/03/2016] [Indexed: 01/01/2023] Open
Abstract
Various approaches to treat articular cartilage have been widely investigated due to its poor intrinsic healing capacity. Stem cell-based therapy could be a promising approach as an alternative to chondrocyte-based therapy and some of these therapies have been already applied in clinical condition. This review discusses the current development of stem cell-based therapies in cartilage repair, specifically focusing on scaffold-free approaches.
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Affiliation(s)
- Yukihiko Yasui
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Wataru Ando
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Kazunori Shimomura
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Kota Koizumi
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Chijimatsu Ryota
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Shuichi Hamamoto
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Masato Kobayashi
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Hideki Yoshikawa
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Norimasa Nakamura
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, Osaka, Japan,Institute for Medical Science in Sports, Osaka Health Science University, Osaka, Japan,Center for Advanced Medical Engineering and Informatics, Osaka University, Osaka, Japan,Corresponding author at: Institute for Medical Science in Sports, Osaka Health Science University, 1-9-27, Tenma, Kita-ku, Osaka city, Osaka 530-0043, Japan. Tel.: +81-6-6352-0093; fax: +81-6-6352-5995.
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110
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Tenogenic differentiation of mesenchymal stem cells and noncoding RNA: From bench to bedside. Exp Cell Res 2015; 341:237-42. [PMID: 26724570 DOI: 10.1016/j.yexcr.2015.12.014] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2015] [Revised: 12/21/2015] [Accepted: 12/23/2015] [Indexed: 11/21/2022]
Abstract
Tendon is a critical unit of musculoskeletal system that connects muscle to bone to control bone movement. More population participate in physical activities, tendon injuries, such as acute tendon rupture and tendinopathy due to overuse, are common causing unbearable pain and disability. However, the process of tendon development and the pathogenesis of tendinopathy are not well defined, limiting the development of clinical therapy for tendon injuries. Studying the tendon differentiation control pathways may help to develop novel therapeutic strategies. This review summarized the novel molecular and cellular events in tendon development and highlighted the clinical application potential of non-coding RNAs and tendon-derived stem cells in gene and cell therapy for tendon injuries, which may bring insights into research and new therapy for tendon disorders.
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111
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Maeda H, Kobayashi H, Miyahara T, Hashimoto Y, Akiyoshi K, Kasugai S. Effects of a polysaccharide nanogel-crosslinked membrane on wound healing. J Biomed Mater Res B Appl Biomater 2015; 105:544-550. [PMID: 26606542 DOI: 10.1002/jbm.b.33571] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2015] [Revised: 10/16/2015] [Accepted: 11/02/2015] [Indexed: 11/11/2022]
Abstract
INTRODUCTION Wound-dressing materials that promote wound healing while protecting wounds from infections are advantageous for clinical applications. Hence, we developed a cholesterol-bearing pullulan (CHP) nanogel that stimulated wound healing; however, it was mechanically weak and difficult to handle. Thus, the purpose of this study was to examine precisely the effects of a mechanically reinforced nanogel-crosslinked (NanoClik) membrane on wound healing. MATERIALS AND METHODS NanoClik was prepared by mixing a thiol-terminated polyethylene glycol solution and an acryloyl group-modified CHP nanogel solution. A thin silicone sheet membrane, which was combined with NanoClik, was prepared. The NanoClick membranes and both positive and negative control membranes (collagen combined with silicone membrane and silicone membrane alone, respectively) were tested in vivo using a dorsal skin defect rat model. The rate and extent of wound healing was compared between groups after 7 and 14 days of implantation. RESULTS In the NanoClik membrane group, the wound area was significantly reduced and neoepithelialization was promoted, compared with that observed in the other groups. In addition, extension and accumulation of collagen fibers were evident in the NanoClik membrane group. CONCLUSION The NanoClik membrane is a strong candidate for use as an effective and safe wound-dressing material. © 2015 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 105B: 544-550, 2017.
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Affiliation(s)
- Hiroki Maeda
- Department of Masticatory Function Rehabilitation, Oral Implantology and Regenerative Dental Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Hiroshi Kobayashi
- Department of Masticatory Function Rehabilitation, Oral Implantology and Regenerative Dental Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Takayuki Miyahara
- Department of Masticatory Function Rehabilitation, Oral Implantology and Regenerative Dental Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Yoshihide Hashimoto
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Kyoto, Japan.,Japan Science and Technology Agency, Exploratory Research for Advanced Technology, Akiyoshi Bio-nanotransporter Project, Kyoto, Japan
| | - Kazunari Akiyoshi
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Kyoto, Japan.,Japan Science and Technology Agency, Exploratory Research for Advanced Technology, Akiyoshi Bio-nanotransporter Project, Kyoto, Japan
| | - Shohei Kasugai
- Department of Masticatory Function Rehabilitation, Oral Implantology and Regenerative Dental Medicine, Tokyo Medical and Dental University, Tokyo, Japan
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112
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Girotti A, Orbanic D, Ibáñez-Fonseca A, Gonzalez-Obeso C, Rodríguez-Cabello JC. Recombinant Technology in the Development of Materials and Systems for Soft-Tissue Repair. Adv Healthc Mater 2015; 4:2423-55. [PMID: 26172311 DOI: 10.1002/adhm.201500152] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2015] [Revised: 05/04/2015] [Indexed: 12/16/2022]
Abstract
The field of biomedicine is constantly investing significant research efforts in order to gain a more in-depth understanding of the mechanisms that govern the function of body compartments and to develop creative solutions for the repair and regeneration of damaged tissues. The main overall goal is to develop relatively simple systems that are able to mimic naturally occurring constructs and can therefore be used in regenerative medicine. Recombinant technology, which is widely used to obtain new tailored synthetic genes that express polymeric protein-based structures, now offers a broad range of advantages for that purpose by permitting the tuning of biological and mechanical properties depending on the intended application while simultaneously ensuring adequate biocompatibility and biodegradability of the scaffold formed by the polymers. This Progress Report is focused on recombinant protein-based materials that resemble naturally occurring proteins of interest for use in soft tissue repair. An overview of recombinant biomaterials derived from elastin, silk, collagen and resilin is given, along with a description of their characteristics and suggested applications. Current endeavors in this field are continuously providing more-improved materials in comparison with conventional ones. As such, a great effort is being made to put these materials through clinical trials in order to favor their future use.
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Affiliation(s)
- Alessandra Girotti
- BIOFORGE (Group for Advanced Materials and Nanobiotechnology); CIBER-BBN; University of Valladolid, Edificio LUCIA; Paseo de Belén, 19 47011 Valladolid Spain
| | - Doriana Orbanic
- BIOFORGE (Group for Advanced Materials and Nanobiotechnology); CIBER-BBN; University of Valladolid, Edificio LUCIA; Paseo de Belén, 19 47011 Valladolid Spain
| | - Arturo Ibáñez-Fonseca
- BIOFORGE (Group for Advanced Materials and Nanobiotechnology); CIBER-BBN; University of Valladolid, Edificio LUCIA; Paseo de Belén, 19 47011 Valladolid Spain
| | - Constancio Gonzalez-Obeso
- BIOFORGE (Group for Advanced Materials and Nanobiotechnology); CIBER-BBN; University of Valladolid, Edificio LUCIA; Paseo de Belén, 19 47011 Valladolid Spain
| | - José Carlos Rodríguez-Cabello
- BIOFORGE (Group for Advanced Materials and Nanobiotechnology); CIBER-BBN; University of Valladolid, Edificio LUCIA; Paseo de Belén, 19 47011 Valladolid Spain
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113
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Yigit S, Dinjaski N, Kaplan DL. Fibrous proteins: At the crossroads of genetic engineering and biotechnological applications. Biotechnol Bioeng 2015; 113:913-29. [PMID: 26332660 DOI: 10.1002/bit.25820] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2015] [Revised: 07/27/2015] [Accepted: 08/25/2015] [Indexed: 12/30/2022]
Abstract
Fibrous proteins, such as silk, elastin and collagen are finding broad impact in biomaterial systems for a range of biomedical and industrial applications. Some of the key advantages of biosynthetic fibrous proteins compared to synthetic polymers include the tailorability of sequence, protein size, degradation pattern, and mechanical properties. Recombinant DNA production and precise control over genetic sequence of these proteins allows expansion and fine tuning of material properties to meet the needs for specific applications. We review current approaches in the design, cloning, and expression of fibrous proteins, with a focus on strategies utilized to meet the challenges of repetitive fibrous protein production. We discuss recent advances in understanding the fundamental basis of structure-function relationships and the designs that foster fibrous protein self-assembly towards predictable architectures and properties for a range of applications. We highlight the potential of functionalization through genetic engineering to design fibrous protein systems for biotechnological and biomedical applications.
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Affiliation(s)
- Sezin Yigit
- Department of Biomedical Engineering, Tufts University, Medford, Massachusetts, 02155.,Department of Chemistry, Tufts University, Somerville, Massachusetts, 02145
| | - Nina Dinjaski
- Department of Biomedical Engineering, Tufts University, Medford, Massachusetts, 02155.,Department of Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, 02139
| | - David L Kaplan
- Department of Biomedical Engineering, Tufts University, Medford, Massachusetts, 02155.
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114
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Buznyk O, Pasyechnikova N, Islam MM, Iakymenko S, Fagerholm P, Griffith M. Bioengineered Corneas Grafted as Alternatives to Human Donor Corneas in Three High-Risk Patients. Clin Transl Sci 2015; 8:558-62. [PMID: 25996570 PMCID: PMC4676913 DOI: 10.1111/cts.12293] [Citation(s) in RCA: 66] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Corneas with severe pathologies have a high risk of rejection when conventionally grafted with human donor tissues. In this early observational study, we grafted bioengineered corneal implants made from recombinant human collagen and synthetic phosphorylcholine polymer into three patients for whom donor cornea transplantation carried a high risk of transplant failure. These patients suffered from corneal ulcers and recurrent erosions preoperatively. The implants provided relief from pain and discomfort, restored corneal integrity by promoting endogenous regeneration of corneal tissues, and improved vision in two of three patients. Such implants could in the future be alternatives to donor corneas for high-risk patients, and therefore, merits further testing in a clinical trial.
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Affiliation(s)
- Oleksiy Buznyk
- Filatov Institute of Eye Diseases and Tissue Therapy of the, National Academy of Medical Sciences of Ukraine, Odessa, Ukraine
- Integrative Regenerative Medicine Center, Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden
| | - Nataliya Pasyechnikova
- Filatov Institute of Eye Diseases and Tissue Therapy of the, National Academy of Medical Sciences of Ukraine, Odessa, Ukraine
| | - M Mirazul Islam
- Integrative Regenerative Medicine Center, Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden
- Department of Neurosciences, Swedish Medical Nanoscience Center, Karolinska Institutet, Stockholm, Sweden
| | - Stanislav Iakymenko
- Filatov Institute of Eye Diseases and Tissue Therapy of the, National Academy of Medical Sciences of Ukraine, Odessa, Ukraine
| | - Per Fagerholm
- Integrative Regenerative Medicine Center, Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden
| | - May Griffith
- Integrative Regenerative Medicine Center, Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden
- Department of Neurosciences, Swedish Medical Nanoscience Center, Karolinska Institutet, Stockholm, Sweden
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115
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Marine-derived biological macromolecule-based biomaterials for wound healing and skin tissue regeneration. Int J Biol Macromol 2015; 77:24-35. [DOI: 10.1016/j.ijbiomac.2015.02.050] [Citation(s) in RCA: 98] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2014] [Revised: 01/15/2015] [Accepted: 02/25/2015] [Indexed: 11/23/2022]
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116
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Shimomura K, Ando W, Moriguchi Y, Sugita N, Yasui Y, Koizumi K, Fujie H, Hart DA, Yoshikawa H, Nakamura N. Next Generation Mesenchymal Stem Cell (MSC)-Based Cartilage Repair Using Scaffold-Free Tissue Engineered Constructs Generated with Synovial Mesenchymal Stem Cells. Cartilage 2015; 6:13S-29S. [PMID: 27340513 PMCID: PMC4481383 DOI: 10.1177/1947603515571002] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Because of its limited healing capacity, treatments for articular cartilage injuries are still challenging. Since the first report by Brittberg, autologous chondrocyte implantation has been extensively studied. Recently, as an alternative for chondrocyte-based therapy, mesenchymal stem cell-based therapy has received considerable research attention because of the relative ease in handling for tissue harvest, and subsequent cell expansion and differentiation. This review summarizes latest development of stem cell therapies in cartilage repair with special attention to scaffold-free approaches.
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Affiliation(s)
- Kazunori Shimomura
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Wataru Ando
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Yu Moriguchi
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Norihiko Sugita
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Yukihiko Yasui
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Kota Koizumi
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Hiromichi Fujie
- Biomechanics Laboratory, Department of Mechanical Engineering, Kogakuin University, Tokyo, Japan
- Division of Human Mechatronics Systems, Faculty of System Design, Tokyo Metropolitan University, Tokyo, Japan
| | - David A. Hart
- McCaig Institute for Bone & Joint Health, University of Calgary, Calgary, Alberta, Canada
| | - Hideki Yoshikawa
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Norimasa Nakamura
- Institute for Medical Science in Sports, Osaka Health Science University, Osaka, Japan
- Center for Advanced Medical Engineering and Informatics, Osaka University, Osaka, Japan
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117
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Jridi M, Bardaa S, Moalla D, Rebaii T, Souissi N, Sahnoun Z, Nasri M. Microstructure, rheological and wound healing properties of collagen-based gel from cuttlefish skin. Int J Biol Macromol 2015; 77:369-74. [PMID: 25796451 DOI: 10.1016/j.ijbiomac.2015.03.020] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2015] [Revised: 03/06/2015] [Accepted: 03/10/2015] [Indexed: 01/01/2023]
Abstract
Collagen-based biomaterials are of the utmost importance for tissue engineering and regenerative medicine. The aims of the present investigation were to evaluate structural and rheological properties of collagen-based gel obtained from cuttlefish skin, and to investigate its ability to enhance wound healing. Scanning electron microscopy of resulted gel showed a dense fibrillar microstructure with high interconnection network with a smaller pore size. In addition, the rheological characterization of collagen gel showed an excellent reversibility, when subjected to a temperature variation. Moreover, in the wound-healing study, topical application of collagen based gel increased significantly the percentage of wound closure over a period of 12 days, when compared to the untreated and CICAFLORA(®)-treated groups. Wound-healing activity of collagen gel was confirmed by histopathology study. Thus, cuttlefish collagen based gel might be useful as a wound healing agent.
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Affiliation(s)
- Mourad Jridi
- Laboratoire de Génie Enzymatique et de Microbiologie, Université de Sfax, Ecole Nationale d'Ingénieurs de Sfax, B.P. 1173-3038 Sfax, Tunisia.
| | - Sana Bardaa
- Laboratoire de Pharmacologie, Faculté de Médecine Sfax, Avenue Majida Boulila, 3028 Sfax, Tunisia
| | - Dorsaf Moalla
- Laboratoire de Pharmacologie, Faculté de Médecine Sfax, Avenue Majida Boulila, 3028 Sfax, Tunisia
| | - Tarak Rebaii
- Laboratoire d'Histologie Embryologie, Faculté de Médecine Sfax, Avenue Majida Boulila, 3028 Sfax, Tunisia
| | - Nabil Souissi
- Laboratoire de Biodiversité et de Biotechnologie Marine, Institut National des Sciences et Technologies de la Mer, Centre de Sfax, B.P. 1037-3018 Sfax, Tunisia
| | - Zouheir Sahnoun
- Laboratoire de Pharmacologie, Faculté de Médecine Sfax, Avenue Majida Boulila, 3028 Sfax, Tunisia
| | - Moncef Nasri
- Laboratoire de Génie Enzymatique et de Microbiologie, Université de Sfax, Ecole Nationale d'Ingénieurs de Sfax, B.P. 1173-3038 Sfax, Tunisia
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118
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Liang L, Wang J, Zhang Y, Shen Z, Zheng J, Li J, Su Z, Cai J, Jiang W, Sun M. Transdifferentiation of bone marrow-derived mesenchymal stem cells into salivary gland-like cells using a novel culture method. Biotechnol Lett 2015; 37:1505-13. [DOI: 10.1007/s10529-015-1809-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2014] [Accepted: 02/24/2015] [Indexed: 10/23/2022]
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119
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Eap S, Keller L, Schiavi J, Huck O, Jacomine L, Fioretti F, Gauthier C, Sebastian V, Schwinté P, Benkirane-Jessel N. A living thick nanofibrous implant bifunctionalized with active growth factor and stem cells for bone regeneration. Int J Nanomedicine 2015; 10:1061-75. [PMID: 25709432 PMCID: PMC4327569 DOI: 10.2147/ijn.s72670] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
New-generation implants focus on robust, durable, and rapid tissue regeneration to shorten recovery times and decrease risks of postoperative complications for patients. Herein, we describe a new-generation thick nanofibrous implant functionalized with active containers of growth factors and stem cells for regenerative nanomedicine. A thick electrospun poly(ε-caprolactone) nanofibrous implant (from 700 μm to 1 cm thick) was functionalized with chitosan and bone morphogenetic protein BMP-7 as growth factor using layer-by-layer technology, producing fish scale-like chitosan/BMP-7 nanoreservoirs. This extracellular matrix-mimicking scaffold enabled in vitro colonization and bone regeneration by human primary osteoblasts, as shown by expression of osteocalcin, osteopontin, and bone sialoprotein (BSPII), 21 days after seeding. In vivo implantation in mouse calvaria defects showed significantly more newly mineralized extracellular matrix in the functionalized implant compared to a bare scaffold after 30 days' implantation, as shown by histological scanning electron microscopy/energy dispersive X-ray microscopy study and calcein injection. We have as well bifunctionalized our BMP-7 therapeutic implant by adding human mesenchymal stem cells (hMSCs). The activity of this BMP-7-functionalized implant was again further enhanced by the addition of hMSCs to the implant (living materials), in vivo, as demonstrated by the analysis of new bone formation and calcification after 30 days' implantation in mice with calvaria defects. Therefore, implants functionalized with BMP-7 nanocontainers associated with hMSCs can act as an accelerator of in vivo bone mineralization and regeneration.
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Affiliation(s)
- Sandy Eap
- INSERM, UMR 1109, Osteoarticular and Dental Regenerative Nanomedicine Laboratory, FMTS, Faculté de Médecine, Strasbourg, France
- Faculté de Chirurgie Dentaire, Université de Strasbourg, Strasbourg, France
| | - Laetitia Keller
- INSERM, UMR 1109, Osteoarticular and Dental Regenerative Nanomedicine Laboratory, FMTS, Faculté de Médecine, Strasbourg, France
- Faculté de Chirurgie Dentaire, Université de Strasbourg, Strasbourg, France
- Department of Chemical Engineering, Aragon Nanoscience Institute, University of Zaragoza, Zaragoza, Spain
| | - Jessica Schiavi
- INSERM, UMR 1109, Osteoarticular and Dental Regenerative Nanomedicine Laboratory, FMTS, Faculté de Médecine, Strasbourg, France
- Faculté de Chirurgie Dentaire, Université de Strasbourg, Strasbourg, France
| | - Olivier Huck
- INSERM, UMR 1109, Osteoarticular and Dental Regenerative Nanomedicine Laboratory, FMTS, Faculté de Médecine, Strasbourg, France
- Faculté de Chirurgie Dentaire, Université de Strasbourg, Strasbourg, France
| | - Leandro Jacomine
- CNRS (National Center for Scientific Research), ICS (Charles Sadron Institute), Strasbourg, France
| | - Florence Fioretti
- INSERM, UMR 1109, Osteoarticular and Dental Regenerative Nanomedicine Laboratory, FMTS, Faculté de Médecine, Strasbourg, France
- Faculté de Chirurgie Dentaire, Université de Strasbourg, Strasbourg, France
| | - Christian Gauthier
- CNRS (National Center for Scientific Research), ICS (Charles Sadron Institute), Strasbourg, France
| | - Victor Sebastian
- INSERM, UMR 1109, Osteoarticular and Dental Regenerative Nanomedicine Laboratory, FMTS, Faculté de Médecine, Strasbourg, France
- Department of Chemical Engineering, Aragon Nanoscience Institute, University of Zaragoza, Zaragoza, Spain
- Networking Research Center of Bioengineering, Biomaterials and Nanomedicine, Zaragoza, Spain
| | - Pascale Schwinté
- INSERM, UMR 1109, Osteoarticular and Dental Regenerative Nanomedicine Laboratory, FMTS, Faculté de Médecine, Strasbourg, France
- Faculté de Chirurgie Dentaire, Université de Strasbourg, Strasbourg, France
| | - Nadia Benkirane-Jessel
- INSERM, UMR 1109, Osteoarticular and Dental Regenerative Nanomedicine Laboratory, FMTS, Faculté de Médecine, Strasbourg, France
- Faculté de Chirurgie Dentaire, Université de Strasbourg, Strasbourg, France
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120
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Li L, Fan D, Ma X, Deng J, He J. High-level secretory expression and purification of unhydroxylated human collagen α1(III) chain inPichia pastorisGS115. Biotechnol Appl Biochem 2015; 62:467-75. [DOI: 10.1002/bab.1297] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2014] [Accepted: 09/12/2014] [Indexed: 11/09/2022]
Affiliation(s)
- Linbo Li
- Shaanxi Key Laboratory of Degradable Biomedical Materials; Northwest University; Shaanxi People's Republic of China
- Shaanxi R&D Center of Biomaterials and Fermentation Engineering; School of Chemical Engineering; Northwest University; Xi'an People's Republic of China
| | - Daidi Fan
- Shaanxi Key Laboratory of Degradable Biomedical Materials; Northwest University; Shaanxi People's Republic of China
- Shaanxi R&D Center of Biomaterials and Fermentation Engineering; School of Chemical Engineering; Northwest University; Xi'an People's Republic of China
| | - Xiaoxuan Ma
- Shaanxi Key Laboratory of Degradable Biomedical Materials; Northwest University; Shaanxi People's Republic of China
- Shaanxi R&D Center of Biomaterials and Fermentation Engineering; School of Chemical Engineering; Northwest University; Xi'an People's Republic of China
| | - Jianjun Deng
- Shaanxi Key Laboratory of Degradable Biomedical Materials; Northwest University; Shaanxi People's Republic of China
- Shaanxi R&D Center of Biomaterials and Fermentation Engineering; School of Chemical Engineering; Northwest University; Xi'an People's Republic of China
| | - Jing He
- Shaanxi Key Laboratory of Degradable Biomedical Materials; Northwest University; Shaanxi People's Republic of China
- Shaanxi R&D Center of Biomaterials and Fermentation Engineering; School of Chemical Engineering; Northwest University; Xi'an People's Republic of China
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121
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Kim SY, Wong AHM, Abou Neel EA, Chrzanowski W, Chan HK. The future perspectives of natural materials for pulmonary drug delivery and lung tissue engineering. Expert Opin Drug Deliv 2014; 12:869-87. [DOI: 10.1517/17425247.2015.993314] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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122
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Marine origin collagens and its potential applications. Mar Drugs 2014; 12:5881-901. [PMID: 25490254 PMCID: PMC4278207 DOI: 10.3390/md12125881] [Citation(s) in RCA: 193] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2014] [Revised: 11/11/2014] [Accepted: 11/19/2014] [Indexed: 01/21/2023] Open
Abstract
Collagens are the most abundant high molecular weight proteins in both invertebrate and vertebrate organisms, including mammals, and possess mainly a structural role, existing different types according with their specific organization in distinct tissues. From this, they have been elected as one of the key biological materials in tissue regeneration approaches. Also, industry is constantly searching for new natural sources of collagen and upgraded methodologies for their production. The most common sources are from bovine and porcine origin, but other ways are making their route, such as recombinant production, but also extraction from marine organisms like fish. Different organisms have been proposed and explored for collagen extraction, allowing the sustainable production of different types of collagens, with properties depending on the kind of organism (and their natural environment) and extraction methodology. Such variety of collagen properties has been further investigated in different ways to render a wide range of applications. The present review aims to shed some light on the contribution of marine collagens for the scientific and technological development of this sector, stressing the opportunities and challenges that they are and most probably will be facing to assume a role as an alternative source for industrial exploitation.
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123
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Karamichos D, Hjortdal J. Keratoconus: tissue engineering and biomaterials. J Funct Biomater 2014; 5:111-34. [PMID: 25215423 PMCID: PMC4192608 DOI: 10.3390/jfb5030111] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2014] [Revised: 08/26/2014] [Accepted: 09/03/2014] [Indexed: 12/20/2022] Open
Abstract
Keratoconus (KC) is a bilateral, asymmetric, corneal disorder that is characterized by progressive thinning, steepening, and potential scarring. The prevalence of KC is stated to be 1 in 2000 persons worldwide; however, numbers vary depending on size of the study and regions. KC appears more often in South Asian, Eastern Mediterranean, and North African populations. The cause remains unknown, although a variety of factors have been considered. Genetics, cellular, and mechanical changes have all been reported; however, most of these studies have proven inconclusive. Clearly, the major problem here, like with any other ocular disease, is quality of life and the threat of vision loss. While most KC cases progress until the third or fourth decade, it varies between individuals. Patients may experience periods of several months with significant changes followed by months or years of no change, followed by another period of rapid changes. Despite the major advancements, it is still uncertain how to treat KC at early stages and prevent vision impairment. There are currently limited tissue engineering techniques and/or "smart" biomaterials that can help arrest the progression of KC. This review will focus on current treatments and how biomaterials may hold promise for the future.
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Affiliation(s)
- Dimitrios Karamichos
- Department of Ophthalmology, University of Oklahoma Health Sciences Center, 608 Stanton L. Young Blvd, DMEI PA-409, Oklahoma City, OK 73104, USA.
| | - Jesper Hjortdal
- Department of Ophthalmology, Aarhus University Hospital, Aarhus C DK-800, Denmark.
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124
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Chattopadhyay S, Raines RT. Review collagen-based biomaterials for wound healing. Biopolymers 2014; 101:821-33. [PMID: 24633807 PMCID: PMC4203321 DOI: 10.1002/bip.22486] [Citation(s) in RCA: 564] [Impact Index Per Article: 56.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2014] [Accepted: 03/07/2014] [Indexed: 01/13/2023]
Abstract
With its wide distribution in soft and hard connective tissues, collagen is the most abundant of animal proteins. In vitro, natural collagen can be formed into highly organized, three-dimensional scaffolds that are intrinsically biocompatible, biodegradable, nontoxic upon exogenous application, and endowed with high tensile strength. These attributes make collagen the material of choice for wound healing and tissue engineering applications. In this article, we review the structure and molecular interactions of collagen in vivo; the recent use of natural collagen in sponges, injectables, films and membranes, dressings, and skin grafts; and the on-going development of synthetic collagen mimetic peptides as pylons to anchor cytoactive agents in wound beds.
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Affiliation(s)
| | - Ronald T. Raines
- Department of Chemistry, University of Wisconsin–Madison, Madison, WI 53706
- Department of Biochemistry, University of Wisconsin–Madison, Madison, WI 53706
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125
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Eap S, Keller L, Ferrand A, Schiavi J, Lahiri D, Lemoine S, Facca S, Fioretti F, Mainard D, Agarwal A, Benkirane-Jessel N. Nanomechanical Properties of Active Nanofibrous Implants After In Vivo Bone Regeneration. ACTA ACUST UNITED AC 2014. [DOI: 10.1142/s1793984414500019] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
With the aging of the population and a correlated increase in the incidence of osteoarticular damage, great attention is focused on regenerative nanomedicine solutions to restore durable articular function and comfort. A durable cartilage repair is not effective without regeneration of an intact subchondral bed along with the surface chondral regeneration. Our expected outcomes are the development of clinical applications in the field of tissue engineering and nanomedicine, and more particularly in bone-cartilage unit regeneration. Here we report for the first time the nanomechanical analysis of the retrieved active implant after subchondral bone regeneration in vivo, which is much more efficient and long lasting solution to osteochondral defects than the existing ones. We believe that our results make a significant contribution to the area of regenerative nanomedicine. The concepts discovered here may serve to design sophisticated implants for placement into a broad variety of tissues.
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Affiliation(s)
- S. Eap
- Institut National de la Santé et de la Recherche Médicale (INSERM), UMR 1109 Jessel Laboratory, "Osteoarticular and Dental Regenerative Nanomedicine", Faculté de Médecine, Strasbourg, France
| | - L. Keller
- Institut National de la Santé et de la Recherche Médicale (INSERM), UMR 1109 Jessel Laboratory, "Osteoarticular and Dental Regenerative Nanomedicine", Faculté de Médecine, Strasbourg, France
- Faculté de Chirurgie Dentaire, Université de Strasbourg, Strasbourg, France
- Plasma Forming Lab and Nanomechanics and Nanotribology Lab, Department of Mechanical and Materials Engineering, Florida International University, Miami FL 33174, USA
| | - A. Ferrand
- Institut National de la Santé et de la Recherche Médicale (INSERM), UMR 1109 Jessel Laboratory, "Osteoarticular and Dental Regenerative Nanomedicine", Faculté de Médecine, Strasbourg, France
| | - J. Schiavi
- Institut National de la Santé et de la Recherche Médicale (INSERM), UMR 1109 Jessel Laboratory, "Osteoarticular and Dental Regenerative Nanomedicine", Faculté de Médecine, Strasbourg, France
| | - D. Lahiri
- Plasma Forming Lab and Nanomechanics and Nanotribology Lab, Department of Mechanical and Materials Engineering, Florida International University, Miami FL 33174, USA
| | - S. Lemoine
- Institut National de la Santé et de la Recherche Médicale (INSERM), UMR 1109 Jessel Laboratory, "Osteoarticular and Dental Regenerative Nanomedicine", Faculté de Médecine, Strasbourg, France
- Faculté de Chirurgie Dentaire, Université de Strasbourg, Strasbourg, France
| | - S. Facca
- Institut National de la Santé et de la Recherche Médicale (INSERM), UMR 1109 Jessel Laboratory, "Osteoarticular and Dental Regenerative Nanomedicine", Faculté de Médecine, Strasbourg, France
| | - F. Fioretti
- Institut National de la Santé et de la Recherche Médicale (INSERM), UMR 1109 Jessel Laboratory, "Osteoarticular and Dental Regenerative Nanomedicine", Faculté de Médecine, Strasbourg, France
- Faculté de Chirurgie Dentaire, Université de Strasbourg, Strasbourg, France
| | - D. Mainard
- Hôpital Central, Service de Chirurgie Orthopédique, Nancy, France
| | - A. Agarwal
- Plasma Forming Lab and Nanomechanics and Nanotribology Lab, Department of Mechanical and Materials Engineering, Florida International University, Miami FL 33174, USA
| | - N. Benkirane-Jessel
- Institut National de la Santé et de la Recherche Médicale (INSERM), UMR 1109 Jessel Laboratory, "Osteoarticular and Dental Regenerative Nanomedicine", Faculté de Médecine, Strasbourg, France
- Faculté de Chirurgie Dentaire, Université de Strasbourg, Strasbourg, France
- Hôpital Central, Service de Chirurgie Orthopédique, Nancy, France
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126
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Bierbaum S, Hintze V, Scharnweber D. Functionalization of biomaterial surfaces using artificial extracellular matrices. BIOMATTER 2014; 2:132-41. [PMID: 23507864 PMCID: PMC3549866 DOI: 10.4161/biom.20921] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Construction of biomaterials with the ability to guide cell function is a topic of high interest in biomaterial development. One approach is using components native to the ECM of the target tissue to generate in vitro a microenvironment that can also elicit specific responses in cells and tissues—an artificial ECM (aECM). The focus is on collagen as the basic material, which can be modified using a number of different glycoproteins, proteoglycans and glycosaminoglycans. Preparation, immobilization and the biochemical characteristics of such aECM are discussed, as well as the in vitro and in vivo response of cells and tissues, illustrating the potential of such matrices to direct cell fate.
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Affiliation(s)
- Susanne Bierbaum
- Max Bergmann Center of Biomaterials, Institute of Materials Science, Dresden University of Technology, Dresden, Germany
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Eap S, Bécavin T, Keller L, Kökten T, Fioretti F, Weickert JL, Deveaux E, Benkirane-Jessel N, Kuchler-Bopp S. Nanofibers implant functionalized by neural growth factor as a strategy to innervate a bioengineered tooth. Adv Healthc Mater 2014; 3:386-91. [PMID: 24124118 DOI: 10.1002/adhm.201300281] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2013] [Indexed: 11/08/2022]
Abstract
Current strategies for jaw reconstruction require multiple procedures, to repair the bone defect, to offer sufficient support, and to place the tooth implant. The entire procedure can be painful and time-consuming, and the desired functional repair can be achieved only when both steps are successful. The ability to engineer combined tooth and bone constructs, which would grow in a coordinated fashion with the surrounding tissues, could potentially improve the clinical outcomes and also reduce patient suffering. A unique nanofibrous and active implant for bone-tooth unit regeneration and also the innervation of this bioengineered tooth are demonstrated. A nanofibrous polycaprolactone membrane is functionalized with neural growth factor, along with dental germ, and tooth innervation follows. Such innervation allows complete functionality and tissue homeostasis of the tooth, such as dentinal sensitivity, odontoblast function, masticatory forces, and blood flow.
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Affiliation(s)
- Sandy Eap
- Institut National de la Santé et de la Recherche Médicale (INSERM), UMR 1109, Osteoarticular and Dental Regenerative Nanomedicine, Faculté de Médecine; 67085 Strasbourg Cedex France
- Université de Strasbourg Faculté de Chirurgie Dentaire; 1 place de l'Hôpital 67000 Strasbourg France
| | - Thibault Bécavin
- Institut National de la Santé et de la Recherche Médicale (INSERM), UMR 1109, Osteoarticular and Dental Regenerative Nanomedicine, Faculté de Médecine; 67085 Strasbourg Cedex France
- Université de Strasbourg Faculté de Chirurgie Dentaire; 1 place de l'Hôpital 67000 Strasbourg France
- Université Lille Nord de France Faculté de Chirurgie Dentaire INSERM UMR 1008 “Controlled Drug Delivery Systems and Biomaterials”; 59006 Lille France
| | - Laetitia Keller
- Institut National de la Santé et de la Recherche Médicale (INSERM), UMR 1109, Osteoarticular and Dental Regenerative Nanomedicine, Faculté de Médecine; 67085 Strasbourg Cedex France
- Université de Strasbourg Faculté de Chirurgie Dentaire; 1 place de l'Hôpital 67000 Strasbourg France
| | - Tunay Kökten
- Institut National de la Santé et de la Recherche Médicale (INSERM), UMR 1109, Osteoarticular and Dental Regenerative Nanomedicine, Faculté de Médecine; 67085 Strasbourg Cedex France
- Université de Strasbourg Faculté de Chirurgie Dentaire; 1 place de l'Hôpital 67000 Strasbourg France
| | - Florence Fioretti
- Institut National de la Santé et de la Recherche Médicale (INSERM), UMR 1109, Osteoarticular and Dental Regenerative Nanomedicine, Faculté de Médecine; 67085 Strasbourg Cedex France
- Université de Strasbourg Faculté de Chirurgie Dentaire; 1 place de l'Hôpital 67000 Strasbourg France
| | - Jean-Luc Weickert
- Institut de Génétique et de Biologie Moléculaire et Cellulaire Service de Microscopie Electronique; 1 rue 67404 Illkirch CEDEX France
| | - Etienne Deveaux
- Université Lille Nord de France Faculté de Chirurgie Dentaire INSERM UMR 1008 “Controlled Drug Delivery Systems and Biomaterials”; 59006 Lille France
| | - Nadia Benkirane-Jessel
- Institut National de la Santé et de la Recherche Médicale (INSERM), UMR 1109, Osteoarticular and Dental Regenerative Nanomedicine, Faculté de Médecine; 67085 Strasbourg Cedex France
- Université de Strasbourg Faculté de Chirurgie Dentaire; 1 place de l'Hôpital 67000 Strasbourg France
| | - Sabine Kuchler-Bopp
- Institut National de la Santé et de la Recherche Médicale (INSERM), UMR 1109, Osteoarticular and Dental Regenerative Nanomedicine, Faculté de Médecine; 67085 Strasbourg Cedex France
- Université de Strasbourg Faculté de Chirurgie Dentaire; 1 place de l'Hôpital 67000 Strasbourg France
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Islam MM, Griffith M, Merrett K. Fabrication of a human recombinant collagen-based corneal substitute using carbodiimide chemistry. Methods Mol Biol 2013; 1014:157-64. [PMID: 23690011 DOI: 10.1007/978-1-62703-432-6_10] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
Abstract
Human recombinant collagen can be cross-linked with a variety of chemical cross-linking agents. Cross-linking methods can be tuned to confer collagen-based scaffolds with specific physical properties, improved antigenicity and thermal stability without impeding the ability of the material to integrate into the surrounding tissue and to promote regeneration. Here, we describe a method to cross-link human recombinant collagen using a water soluble carbodiimide. Carbodiimides are referred to as zero-length cross-linking agents as they are not incorporated into the final cross-link and thus pose minimal risk with respect to cytotoxicity. The resulting collagen-based scaffold possesses properties comparable to that of the human cornea and is thus suitable for use as a corneal substitute.
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129
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Eap S, Ferrand A, Schiavi J, Keller L, Kokten T, Fioretti F, Mainard D, Ladam G, Benkirane-Jessel N. Collagen implants equipped with 'fish scale'-like nanoreservoirs of growth factors for bone regeneration. Nanomedicine (Lond) 2013; 9:1253-61. [PMID: 24279458 DOI: 10.2217/nnm.13.122] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
Implants triggering rapid, robust and durable tissue regeneration are needed to shorten recovery times and decrease risks of postoperative complications for patients. Here, we describe active living collagen implants with highly promising bone regenerative properties. Bioactivity of the implants is obtained through the protective and stabilizing layer-by-layer immobilization of a protein growth factor in association with a polysaccharide (chitosan), within the form of nanocontainers decorating the collagen nanofibers. All components of the implants are US FDA approved. From both in vitro and in vivo evaluations, the sophisticated strategy described here should enhance, at a reduced cost, the safety and efficacy of the therapeutic implants in terms of large bone defects repair compared with current simplistic approaches based on the soaking of the implants with protein growth factor.
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Affiliation(s)
- Sandy Eap
- INSERM, French National Institute of Health & Medical Research, Osteoarticular & Dental Regenerative Nanomedicine team, UMR1109, Faculté de Médecine, F-67085 Strasbourg Cedex, France
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Rosa V, Zhang Z, Grande R, Nör J. Dental pulp tissue engineering in full-length human root canals. J Dent Res 2013; 92:970-5. [PMID: 24056227 PMCID: PMC3797540 DOI: 10.1177/0022034513505772] [Citation(s) in RCA: 203] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2013] [Revised: 07/28/2013] [Accepted: 08/28/2013] [Indexed: 12/17/2022] Open
Abstract
The clinical translation of stem-cell-based dental pulp regeneration will require the use of injectable scaffolds. Here, we tested the hypothesis that stem cells from exfoliated deciduous teeth (SHED) can generate a functional dental pulp when injected into full-length root canals. SHED survived and began to express putative markers of odontoblastic differentiation after 7 days when mixed with Puramatrix™ (peptide hydrogel), or after 14 days when mixed with recombinant human Collagen (rhCollagen) type I, and injected into the root canals of human premolars in vitro. Roots of human premolars injected with scaffolds (Puramatrix™ or rhCollagen) containing SHED were implanted subcutaneously into immunodeficient mice (CB-17 SCID). We observed pulp-like tissues with odontoblasts capable of generating new tubular dentin throughout the root canals. Notably, the pulp tissue engineered with SHED injected with either Puramatrix™ or rhCollagen type I presented similar cellularity and vascularization when compared with control human dental pulps. Analysis of these data, collectively, demonstrates that SHED injected into full-length human root canals differentiate into functional odontoblasts, and suggests that such a strategy might facilitate the completion of root formation in necrotic immature permanent teeth.
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Affiliation(s)
- V. Rosa
- Oral Sciences, Faculty of Dentistry, National University of Singapore, Singapore
- Department of Biomaterials and Oral Biology, School of Dentistry, University of São Paulo, Brazil
- Department of Cariology, Restorative Sciences and Endodontics, University of Michigan School of Dentistry, Ann Arbor, MI 48109-1078, USA
| | - Z. Zhang
- Department of Cariology, Restorative Sciences and Endodontics, University of Michigan School of Dentistry, Ann Arbor, MI 48109-1078, USA
| | - R.H.M. Grande
- Department of Biomaterials and Oral Biology, School of Dentistry, University of São Paulo, Brazil
| | - J.E. Nör
- Department of Cariology, Restorative Sciences and Endodontics, University of Michigan School of Dentistry, Ann Arbor, MI 48109-1078, USA
- Department of Biomedical Engineering, University of Michigan College of Engineering
- Department of Otolaryngology, University of Michigan School of Medicine
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131
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Epoxy cross-linked collagen and collagen-laminin Peptide hydrogels as corneal substitutes. J Funct Biomater 2013; 4:162-77. [PMID: 24956085 PMCID: PMC4030907 DOI: 10.3390/jfb4030162] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2013] [Revised: 07/03/2013] [Accepted: 08/06/2013] [Indexed: 12/13/2022] Open
Abstract
A bi-functional epoxy-based cross-linker, 1,4-Butanediol diglycidyl ether (BDDGE), was investigated in the fabrication of collagen based corneal substitutes. Two synthetic strategies were explored in the preparation of the cross-linked collagen scaffolds. The lysine residues of Type 1 porcine collagen were directly cross-linked using l,4-Butanediol diglycidyl ether (BDDGE) under basic conditions at pH 11. Alternatively, under conventional methodology, using both BDDGE and 1-Ethyl-3-(3-dimethyl aminopropyl) carbodiimide (EDC)/N-hydroxysuccinimide (NHS) as cross-linkers, hydrogels were fabricated under acidic conditions. In this latter strategy, Cu(BF4)2·XH2O was used to catalyze the formation of secondary amine bonds. To date, we have demonstrated that both methods of chemical cross-linking improved the elasticity and tensile strength of the collagen implants. Differential scanning calorimetry and biocompatibility studies indicate comparable, and in some cases, enhanced properties compared to that of the EDC/NHS controls. In vitro studies showed that human corneal epithelial cells and neuronal progenitor cell lines proliferated on these hydrogels. In addition, improvement of cell proliferation on the surfaces of the materials was observed when neurite promoting laminin epitope, IKVAV, and adhesion peptide, YIGSR, were incorporated. However, the elasticity decreased with peptide incorporation and will require further optimization. Nevertheless, we have shown that epoxy cross-linkers should be further explored in the fabrication of collagen-based hydrogels, as alternatives to or in conjunction with carbodiimide cross-linkers.
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132
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Ferrand A, Eap S, Richert L, Lemoine S, Kalaskar D, Demoustier-Champagne S, Atmani H, Mély Y, Fioretti F, Schlatter G, Kuhn L, Ladam G, Benkirane-Jessel N. Osteogenetic properties of electrospun nanofibrous PCL scaffolds equipped with chitosan-based nanoreservoirs of growth factors. Macromol Biosci 2013; 14:45-55. [PMID: 23956214 DOI: 10.1002/mabi.201300283] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2013] [Revised: 07/11/2013] [Indexed: 01/27/2023]
Abstract
Bioactive implants intended for rapid, robust, and durable bone tissue regeneration are presented. The implants are based on nanofibrous 3D-scaffolds of bioresorbable poly-ϵ-caprolactone mimicking the fibrillar architecture of bone matrix. Layer-by-layer nanoimmobilization of the growth factor BMP-2 in association with chitosan (CHI) or poly-L-lysine over the nanofibers is described. The osteogenetic potential of the scaffolds coated with layers of CHI and BMP-2 is demonstrated in vitro, and in vivo in mouse calvaria, through enhanced osteopontin gene expression and calcium phosphate biomineralization. The therapeutic strategy described here contributes to the field of regenerative medicine, as it proposes a route toward efficient repair of bone defects at reduced risk and cost level.
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Affiliation(s)
- Alice Ferrand
- INSERM UMR 1109, Osteoarticular and Dental Regenerative Nanomedicine, 11 rue Humann, 67085, Strasbourg Cedex, France; Institut de Chimie et Procédés pour l'Énergie, l'Environnement et la Santé, ICPEES-UMR 7515, Université de Strasbourg, CNRS, Institut Carnot MICA, École Européenne de Chimie, Polymères et Matériaux, 25 rue Becquerel, 67087, Strasbourg, cedex 2, France
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133
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Wang X, Liu Z, Cui F. Biomimetic Synthesis of Self‐Assembled Mineralized Collagen‐Based Composites for Bone Tissue Engineering. Biomimetics (Basel) 2013. [DOI: 10.1002/9781118810408.ch2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023] Open
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134
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Meimandi-Parizi A, Oryan A, Moshiri A. Role of tissue engineered collagen based tridimensional implant on the healing response of the experimentally induced large Achilles tendon defect model in rabbits: a long term study with high clinical relevance. J Biomed Sci 2013; 20:28. [PMID: 23672303 PMCID: PMC3663701 DOI: 10.1186/1423-0127-20-28] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2013] [Accepted: 05/10/2013] [Indexed: 11/20/2022] Open
Abstract
Background Tendon injury is one of the orthopedic conditions poses with a significant clinical challenge to both the surgeons and patients. The major limitations to manage these injuries are poor healing response and development of peritendinous adhesions in the injured area. This study investigated the effectiveness of a novel collagen implant on tendon healing in rabbits. Results Seventy five mature White New-Zealand rabbits were divided into treated (n = 55) and control (n = 20) groups. The left Achilles tendon was completely transected and 2 cm excised. The defects of the treated animals were filled with collagen implants and repaired with sutures, but in control rabbits the defects were sutured similarly but the gap was left untreated. Changes in the injured and normal contralateral tendons were assessed weekly by measuring the diameter, temperature and bioelectrical characteristics of the injured area. Clinical examination was done and scored. Among the treated animals, small pilot groups were euthanized at 5, 10, 15, 20, 30, 40 and 60 (n = 5 at each time interval) and the remainder (n = 20) and the control animals at 120 days post injury (DPI). The lesions of all animals were examined at macroscopic and microscopic levels and the dry matter content, water delivery and water uptake characteristics of the lesions and normal contralateral tendons of both groups were analyzed at 120 DPI. No sign of rejection was seen in the treated lesions. The collagen implant was invaded by the inflammatory cells at the inflammatory phase, followed by fibroplasia phase in which remnant of the collagen implant were still present while no inflammatory reaction could be seen in the lesions. However, the collagen implant was completely absorbed in the remodeling phase and the newly regenerated tendinous tissue filled the gap. Compared to the controls, the treated lesions showed improved tissue alignment and less peritendinous adhesion, muscle atrophy and fibrosis. They also showed significantly better clinical scoring, indices for water uptake and water absorption, and bioelectrical characteristics than the controls. Conclusion This novel collagen implant was biodegradable, biocompatible and possibly could be considered as a substitute for auto and allografts in clinical practice in near future.
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135
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Abou Neel EA, Bozec L, Knowles JC, Syed O, Mudera V, Day R, Hyun JK. Collagen--emerging collagen based therapies hit the patient. Adv Drug Deliv Rev 2013; 65:429-56. [PMID: 22960357 DOI: 10.1016/j.addr.2012.08.010] [Citation(s) in RCA: 190] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2012] [Revised: 08/10/2012] [Accepted: 08/28/2012] [Indexed: 12/11/2022]
Abstract
The choice of biomaterials available for regenerative medicine continues to grow rapidly, with new materials often claiming advantages over the short-comings of those already in existence. Going back to nature, collagen is one of the most abundant proteins in mammals and its role is essential to our way of life. It can therefore be obtained from many sources including porcine, bovine, equine or human and offer a great promise as a biomimetic scaffold for regenerative medicine. Using naturally derived collagen, extracellular matrices (ECMs), as surgical materials have become established practice for a number of years. For clinical use the goal has been to preserve as much of the composition and structure of the ECM as possible without adverse effects to the recipient. This review will therefore cover in-depth both naturally and synthetically produced collagen matrices. Furthermore the production of more sophisticated three dimensional collagen scaffolds that provide cues at nano-, micro- and meso-scale for molecules, cells, proteins and bulk fluids by inducing fibrils alignments, embossing and layered configuration through the application of plastic compression technology will be discussed in details. This review will also shed light on both naturally and synthetically derived collagen products that have been available in the market for several purposes including neural repair, as cosmetic for the treatment of dermatologic defects, haemostatic agents, mucosal wound dressing and guided bone regeneration membrane. There are other several potential applications of collagen still under investigations and they are also covered in this review.
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136
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Sow WT, Lui YS, Ng KW. Electrospun human keratin matrices as templates for tissue regeneration. Nanomedicine (Lond) 2013; 8:531-41. [DOI: 10.2217/nnm.13.38] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Aim: The aim of this work was to study the feasibility of fabricating human hair keratin matrices through electrospinning and to evaluate the potential of these matrices for tissue regeneration. Materials & methods: Keratin was extracted from human hair using Na2S and blended with poly(ethylene oxide) in the weight ratio of 60:1 for electrospinning. Physical morphology and chemical properties of the matrices were characterized using scanning electron microscopy and Fourier transform infrared spectroscopy, respectively. Cell viability and morphology of murine and human fibroblasts cultured on the matrices were evaluated through the Live/Dead® assay and scanning electron microscopy. Results: Electrospun keratin matrices were successfully produced without affecting the chemical conformation of keratin. Fibroblasts cultured on keratin matrices showed healthy morphology and penetration into matrices at day 7. Conclusion: Electrospun human hair keratin matrices provide a bioinductive and structural environment for cell growth and are thus attractive as alternative templates for tissue regeneration.
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Affiliation(s)
- Wan Ting Sow
- School of Materials Science & Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
| | - Yuan Siang Lui
- School of Materials Science & Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
- Institute for Sports Research, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
| | - Kee Woei Ng
- School of Materials Science & Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore.
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Nuutila K, Peura M, Suomela S, Hukkanen M, Siltanen A, Harjula A, Vuola J, Kankuri E. Recombinant human collagen III gel for transplantation of autologous skin cells in porcine full-thickness wounds. J Tissue Eng Regen Med 2013; 9:1386-93. [PMID: 23362205 DOI: 10.1002/term.1691] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2012] [Revised: 10/17/2012] [Accepted: 12/20/2012] [Indexed: 01/12/2023]
Abstract
Complex skin wounds, such as chronic ulcers and deep burns, require lengthy treatments and cause extensive burdens on healthcare and the economy. Use of biomaterials and cell transplantation may improve traditional treatments and promote the healing of difficult-to-treat wounds. In this study, we investigated the use of recombinant human collagen III (rhCol-III) gel as a delivery vehicle for cultured autologous skin cells (keratinocytes only or keratinocyte-fibroblast mixtures). We examined its effect on the healing of full-thickness wounds in a porcine wound-healing model. Two Landrace pigs were used for the study. Fourteen deep dermal wounds were created on the back of each pig with an 8 mm biopsy punch. Syringes containing acellular rhCol-III gel (n = 8) or rhCol-III gel with autologous keratinocytes (n = 8) or rhCol-III gel with autologous keratinocytes and fibroblasts (n = 8) were applied into wounds. Untreated wounds were used as controls for the treatment groups (n = 4). We used rhCol-III gel to manufacture a cell-delivery syringe containing autologous skin cells. In a full-thickness wound-healing model, we observed that rhCol-III gel enhances early granulation tissue formation. Interestingly, we found cell type-dependent differences in the stability of rhCol-III in vivo. Fibroblast-containing gel was effectively removed from the wound, whereas gels without cells or with keratinocytes only remained intact. Our results demonstrate that the properties of rhCol-III gel for skin cell transplantation can be significantly altered in a cell type-dependent manner.
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Affiliation(s)
- Kristo Nuutila
- Institute of Biomedicine, Pharmacology, University of Helsinki, Finland.,3rd Department of Surgery, Helsinki University Central Hospital, Finland
| | - Matti Peura
- Institute of Biomedicine, Pharmacology, University of Helsinki, Finland.,3rd Department of Surgery, Helsinki University Central Hospital, Finland
| | - Sari Suomela
- Department of Dermatology, Helsinki University Central Hospital, Finland
| | - Mika Hukkanen
- Institute of Biomedicine, Anatomy, University of Helsinki, Finland
| | - Antti Siltanen
- Institute of Biomedicine, Pharmacology, University of Helsinki, Finland.,3rd Department of Surgery, Helsinki University Central Hospital, Finland
| | - Ari Harjula
- Institute of Biomedicine, Pharmacology, University of Helsinki, Finland.,3rd Department of Surgery, Helsinki University Central Hospital, Finland
| | - Jyrki Vuola
- Helsinki Burn Centre, Department of Plastic Surgery, Helsinki University Central Hospital, Finland
| | - Esko Kankuri
- Institute of Biomedicine, Pharmacology, University of Helsinki, Finland.,3rd Department of Surgery, Helsinki University Central Hospital, Finland
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Moriguchi Y, Tateishi K, Ando W, Shimomura K, Yonetani Y, Tanaka Y, Kita K, Hart DA, Gobbi A, Shino K, Yoshikawa H, Nakamura N. Repair of meniscal lesions using a scaffold-free tissue-engineered construct derived from allogenic synovial MSCs in a miniature swine model. Biomaterials 2012; 34:2185-93. [PMID: 23261221 DOI: 10.1016/j.biomaterials.2012.11.039] [Citation(s) in RCA: 81] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2012] [Accepted: 11/22/2012] [Indexed: 12/22/2022]
Abstract
The menisci of the knee are fibro-cartilaginous tissues and play important roles in the joint, and the loss of the meniscus predisposes the knee to degenerative changes. However, the menisci have limited healing potential due to the paucity of vascularity. The purpose of the present study was to test the feasibility of a scaffold-free tissue-engineered construct (TEC) derived from synovial mesenchymal stem cells (MSCs) to repair incurable meniscal lesions. Porcine synovial MSCs were cultured in monolayers at high density in the presence of ascorbic acid followed by the suspension culture to develop a three-dimensional cell/matrix construct (TEC). A 4-mm cylindrical defect was created bilaterally in the medial meniscus of skeletally mature miniature pigs. The defects were implanted with an allogenic TEC or were left empty. After 6 months, the TEC-treated defects were consistently repaired by a fibro-cartilaginous tissue with good tissue integration to the adjacent host meniscal tissue, while the untreated were either partially or not repaired. The ratio of Safranin O positive area within the central body of the meniscus adjacent to the original defect was significantly higher in the TEC-treated group than in the control group. Moreover, TEC treatment significantly reduced the size and severity of post-traumatic chondral lesions on the tibial plateau. These results suggest that the TEC could be a promising stem cell-based implant to repair meniscal lesions with preventive effects from meniscal body degeneration and the development of post-traumatic arthritis.
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Affiliation(s)
- Yu Moriguchi
- Department of Orthopaedics, Osaka University Graduate School of Medicine, Osaka, Japan
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Enhancement of neurite outgrowth in neuron cancer stem cells by growth on 3-D collagen scaffolds. Biochem Biophys Res Commun 2012; 428:68-73. [PMID: 23047009 DOI: 10.1016/j.bbrc.2012.10.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2012] [Accepted: 10/02/2012] [Indexed: 12/13/2022]
Abstract
Collagen is one component of the extracellular matrix that has been widely used for constructive remodeling to facilitate cell growth and differentiation. The 3-D distribution and growth of cells within the porous scaffold suggest a clinical significance for nerve tissue engineering. In the current study, we investigated proliferation and differentiation of neuron cancer stem cells (NCSCs) on a 3-D porous collagen scaffold that mimics the natural extracellular matrix. We first generated green fluorescence protein (GFP) expressing NCSCs using a lentiviral system to instantly monitor the transitions of morphological changes during growth on the 3-D scaffold. We found that proliferation of GFP-NCSCs increased, and a single cell mass rapidly grew with unrestricted expansion between days 3 and 9 in culture. Moreover, immunostaining with neuronal nuclei (NeuN) revealed that NCSCs grown on the 3-D collagen scaffold significantly enhanced neurite outgrowth. Our findings confirmed that the 80 μm porous collagen scaffold could enhance attachment, viability and differentiation of the cancer neural stem cells. This result could provide a new application for nerve tissue engineering and nerve regeneration.
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141
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Urea production and arginine metabolism are reduced in the growth restricted ovine foetus. Animal 2012; 1:699-707. [PMID: 22444470 DOI: 10.1017/s1751731107710273] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Urea production may be impaired in intrauterine growth restriction (IUGR), increasing the risk of toxic hyperammonaemia after birth. Arginine supplementation stimulates urea production, but its effects in IUGR are unknown. We aimed to determine the effects of IUGR and arginine supplementation on urea production and arginine metabolism in the ovine foetus. Pregnant ewes and their foetuses were catheterised at 110 days of gestation and randomly assigned to control or IUGR groups. IUGR was induced by placental embolisation. At days 120 and 126 of gestation, foetal urea production was determined from [14C]-urea kinetics and arginine metabolism was determined from the appearance of radioactive metabolites from [3H]-arginine, both at baseline and in response to arginine or an isonitrogenous mixed amino acid supplementation. Urea production decreased with gestational age in the embolised animals (13.9 ± 3.1 to 11.2 ± 3.0 μmol/kg per min, P ≤ 0.05) but not in the controls (13.3 ± 3.5 to 14.8 ± 6.0 μmol/kg per min). Arginine supplementation increased urea production in both groups, but only at 126 days of gestation (control: 15.0 ± 8.5 to 17.0 ± 9.4 μmol/kg per min; embolised: 11.7 ± 3.1 to 14.3 ± 3.1 μmol/kg per min, P ≤ 0.05). Embolisation reduced foetal arginine concentrations by 20% ( P ≤ 0.05) while foetal arginine consumption was reduced by 27% ( P ≤ 0.05). The proportions of plasma citrulline and hydroxyproline derived from arginine were reduced in the embolised animals. These data suggest that foetal urea production and arginine metabolism are perturbed in late gestation after placental embolisation.
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Lampe KJ, Heilshorn SC. Building stem cell niches from the molecule up through engineered peptide materials. Neurosci Lett 2012; 519:138-46. [PMID: 22322073 PMCID: PMC3691058 DOI: 10.1016/j.neulet.2012.01.042] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2011] [Accepted: 01/18/2012] [Indexed: 01/12/2023]
Abstract
The native stem cell niche is a dynamic and complex microenvironment. Recapitulating this niche is a critical focus within the fields of stem cell biology, tissue engineering, and regenerative medicine and requires the development of well-defined, tunable materials. Recent biomaterial design strategies seek to create engineered matrices that interact with cells at the molecular scale and allow on-demand, cell-triggered matrix modifications. Peptide and protein engineering can accomplish these goals through the molecular-level design of bioinductive and bioresponsive materials. This brief review focuses on engineered peptide and protein materials suitable for use as in vitro neural stem cell niche mimics and in vivo central nervous system repair. A key hallmark of these materials is the immense design freedom to specify the exact amino acid sequence leading to multi-functional bulk materials with tunable properties. These advanced materials are engineered using rational design strategies to recapitulate key aspects of the native neural stem cell niche. The resulting materials often combine the advantages of biological matrices with the engineering control of synthetic polymers. Future design strategies are expected to endow these materials with multiple layers of bi-directional feedback between the cell and the matrix, which will lead to more advanced mimics of the highly dynamic neural stem cell niche.
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Affiliation(s)
- Kyle J Lampe
- Materials Science and Engineering, 476 Lomita Mall, Stanford University, Stanford, CA 94305, USA.
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143
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Magarian EM, Vavken P, Connolly SA, Mastrangelo AN, Murray MM. Safety of intra-articular use of atelocollagen for enhanced tissue repair. Open Orthop J 2012; 6:231-8. [PMID: 22802918 PMCID: PMC3395883 DOI: 10.2174/1874325001206010231] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/11/2011] [Revised: 04/18/2012] [Accepted: 04/21/2012] [Indexed: 01/08/2023] Open
Abstract
Collagen is an important biomaterial in intra-articular tissue engineering, but there are unanswered questions about its safety. We hypothesize that the addition of type-I-collagen for primary repair of the Anterior Cruciate Ligament (ACL) might result in a local and systemic reaction in a porcine model after 15 weeks as demonstrated by joint effusion, synovial thickening, elevated intraarticular and systemic leukocyte counts. Further, this reaction might be aggravated by the addition of a platelet concentrate. Eighteen porcine ACLs were transected and repaired with either sutures (n=6), a collagen sponge (n=6), or a collagen-platelet-composite (CPC; n=6). Twelve intact contralateral knees served as controls (n=12). No significant synovial thickening or joint effusion was seen in the collagen-treated knees. Synovial fluid leukocyte counts showed no significant differences between surgically treated and intact knees, and no differences were seen in leukocyte counts of the peripheral blood. The addition of a platelet concentrate to the knee joint resulted in lower serum levels of IL-1β, but serum levels of TNF-α were not significantly different between groups. In conclusion, the presence of collagen, with or without added platelets, did not increase the local or systemic inflammatory reactions following surgery, suggesting that Type I collagen is safe to use in the knee joint.
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Affiliation(s)
- Elise M Magarian
- Department of Orthopaedic Surgery, Children's Hospital Boston, 300 Longwood Ave, Boston, MA 02115, USA
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144
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Modulation of C1-Inhibitor and Plasma Kallikrein Activities by Type IV Collagen. Int J Biomater 2012; 2012:212417. [PMID: 22481936 PMCID: PMC3296203 DOI: 10.1155/2012/212417] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2011] [Accepted: 11/10/2011] [Indexed: 11/23/2022] Open
Abstract
The contact system of coagulation can be activated when in contact with biomaterials. As collagen is being tested in novel biomaterials in this study, we have investigated how type IV collagen affects plasma kallikrein and C1-inhibitor. Firstly, we showed C1-inhibitor binds to type IV collagen with a Kd of 0.86 μM. The effects of type IV collagen on plasma kallikrein, factor XIIa, and β-factor XIIa activity and on C1-inhibitor function were determined. Factor XIIa rapidly lost activity in the presence of type IV collagen, whereas plasma kallikrein and β-factor XIIa were more stable. The rate of inhibition of plasma kallikrein by C1-inhibitor was decreased by type IV collagen in a dose-dependent manner. These studies could be relevant to the properties of biomaterials, which contain collagen, and should be considered in the testing for biocompatibility.
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145
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Wang S, Taraballi F, Tan LP, Ng KW. Human keratin hydrogels support fibroblast attachment and proliferation in vitro. Cell Tissue Res 2012; 347:795-802. [DOI: 10.1007/s00441-011-1295-2] [Citation(s) in RCA: 103] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2011] [Accepted: 11/21/2011] [Indexed: 11/30/2022]
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146
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Tang S, Zhao J, Xu S, Li J, Teng Y, Quan D, Guo X. Bone induction through controlled release of novel BMP-2-related peptide from PTMC₁₁-F127-PTMC₁₁ hydrogels. Biomed Mater 2012; 7:015008. [PMID: 22287556 DOI: 10.1088/1748-6041/7/1/015008] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Bone morphogenetic protein 2 (BMP-2) is the most powerful osteogenic factor; its effectiveness in enhancing osteoblastic activation has been confirmed both in vitro and in vivo. We developed a novel peptide (designated P24) derived from the 'knuckle' epitope of BMP-2 and found it also had osteogenic bioactivity to some extent. The main objective of this study was to develop a controlled release system based on poly(trimethylene carbonate)-F127-poly(trimethylene carbonate) (PTMC₁₁-F127-PTMC₁₁) hydrogels for the P24 peptide, to promote bone formation. By varying the copolymer concentrations, we demonstrated that P24/PTMC₁₁-F127-PTMC₁₁ hydrogels were an efficient system for the sustained release of P24 over 21-35 days. The P24-loaded hydrogels elevated alkaline phosphatase activity and promoted the expression of osteocalcin mRNA in bone marrow stromal cells (BMSCs) in vitro. Radiographic and histological examination showed that P24-loaded hydrogels could induce more effective ectopic bone formation in vivo than P24-free hydrogels. These results indicate that the PTMC₁₁-F127-PTMC₁₁ hydrogel is a suitable carrier for the controlled release of P24, and is a promising injectable biomaterial for the induction of bone regeneration.
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Affiliation(s)
- Shuo Tang
- Department of Orthopaedics, Union Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, People's Republic of China
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147
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Mendoza-Palomares C, Ferrand A, Facca S, Fioretti F, Ladam G, Kuchler-Bopp S, Regnier T, Mainard D, Benkirane-Jessel N. Smart hybrid materials equipped by nanoreservoirs of therapeutics. ACS NANO 2012; 6:483-490. [PMID: 22176534 DOI: 10.1021/nn203817t] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Nanobiotechnology enables the emergence of entirely new classes of bioactive devices intended for targeted intracellular delivery for more efficacies and less toxicities. Among organic and inorganic approaches currently developed, controlled release from polymer matrices promises utmost clinical impact. Here, a unique nanotechnology strategy is used to entrap, protect, and stabilize therapeutic agents into polymer coatings acting as nanoreservoirs enrobing nanofibers of implantable membranes. Upon contact with cells, therapeutic agents become available through enzymatic degradation of the nanoreservoirs. As cells grow, divide, and infiltrate deeper into the porous membrane, they trigger slow and progressive release of therapeutic agents that, in turn, stimulate further cell proliferation. This constitutes the first instance of a smart living nanostructured hybrid membrane for regenerative medicine. The cell contact-dependent bioerodable nanoreservoirs described here will permit sustained release of drugs, genes, growth factors, etc., opening a general route to the design of sophisticated cell-therapy implants capable of robust and durable regeneration of a broad variety of tissues.
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Affiliation(s)
- Carlos Mendoza-Palomares
- Institut National de la Santé et de la Recherche Médicale (INSERM), Unité 977, 11 rue Humann, 67085 Strasbourg, France
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148
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KONNO T. Design of Cytocompatible Biointerfaces Based on Phospholipid Polymers to Standardize Cells and to Contribute to Cell Engineering. KOBUNSHI RONBUNSHU 2012. [DOI: 10.1295/koron.69.555] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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149
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Turunen S, Haaparanta AM, Äänismaa R, Kellomäki M. Chemical and topographical patterning of hydrogels for neural cell guidancein vitro. J Tissue Eng Regen Med 2011; 7:253-70. [DOI: 10.1002/term.520] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2010] [Revised: 06/02/2011] [Accepted: 09/22/2011] [Indexed: 02/05/2023]
Affiliation(s)
- Sanna Turunen
- Department of Biomedical Engineering; Tampere University of Technology; Finland
| | | | - Riikka Äänismaa
- NeuroGroup, Institute for Biomedical Technology; University of Tampere; Finland
| | - Minna Kellomäki
- Department of Biomedical Engineering; Tampere University of Technology; Finland
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150
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Princz MA, Sheardown H. Modified dendrimer cross-linked collagen-based matrices. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2011; 23:2207-22. [PMID: 22137239 DOI: 10.1163/156856211x612736] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Dendrimer cross-linking has been achieved with pepsin digested over 80% type-I bovine collagen to create strong hydrogels with good cell compatibility. Herein we investigate the use of commercially available collagen-based products with the dendrimer cross-linking technology. Specifically PureCol(®) (PC), a 97% bovine type-I collagen, human collagen (HC) and human extracellular matrix (hECM) were concentrated, and then cross-linked with polypropyleneimine octaamine generation two dendrimers using 1-ethyl-3-(3-dimethyl aminopropyl) carbodiimide hydrochloride (EDC) and N-hydroxysuccinimide (NHS) chemistry. PC gels with 30 and 20 mg/ml bovine collagen were fabricated, and despite similar concentrations to >80% type-I bovine collagen dendrimer cross-linked gels (CG), PC gels demonstrated increased swelling and decreased stability, as determined with collagenase digestion. The highly purified bovine (PC) and human sourced-collagen (HC) gels were similar in performance, but not as stable as the CG gels, which may correlate to the manufacturer's collagen purification and storage. Finally, the addition of hECM components to PC to create PC-hECM gels, resulted in a looser gel network, compared to heparinized dendrimer cross- linked bovine >80% type-I collagen gels (CHG). However, all collagen-based gels supported 3T3 fibroblast cell growth over 4 days, indicating these gels may be suitable for tissue-engineering applications.
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Affiliation(s)
- M A Princz
- a Department of Chemical Engineering , McMaster University , 1280 Main Street W. , Hamilton , ON , Canada , L8S 4L8
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