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Ma J, Wu C, Xu J. The Development of Lung Tissue Engineering: From Biomaterials to Multicellular Systems. Adv Healthc Mater 2024:e2401025. [PMID: 39206615 DOI: 10.1002/adhm.202401025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Revised: 07/29/2024] [Indexed: 09/04/2024]
Abstract
The challenge of the treatment of end-stage lung disease poses an urgent clinical demand for lung tissue engineering. Over the past few years, various lung tissue-engineered constructs are developed for lung tissue regeneration and respiratory pathology study. In this review, an overview of recent achievements in the field of lung tissue engineering is proposed. The introduction of lung structure and lung injury are stated briefly at first. After that, the lung tissue-engineered constructs are categorized into three types: acellular, monocellular, and multicellular systems. The different bioengineered constructs included in each system that can be applied to the reconstruction of the trachea, airway epithelium, alveoli, and even whole lung are described in detail, followed by the highlight of relevant representative research. Finally, the challenges and future directions of biomaterials, manufacturing technologies, and cells involved in lung tissue engineering are discussed. Overall, this review can provide referable ideas for the realization of functional lung regeneration and permanent lung substitution.
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Affiliation(s)
- Jingge Ma
- Department of Respiratory and Critical Care Medicine, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, 200433, P. R. China
- Institute of Respiratory Medicine, School of Medicine, Tongji University, Shanghai, 200433, P. R. China
| | - Chengtie Wu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, P. R. China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Jinfu Xu
- Department of Respiratory and Critical Care Medicine, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, 200433, P. R. China
- Institute of Respiratory Medicine, School of Medicine, Tongji University, Shanghai, 200433, P. R. China
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2
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Duszczak J, Mituła K, Rzonsowska M, Ławniczak P, Januszewski R, Szarłan B, Dudziec B. Slick Synthetic Approach to Various Fluoroalkyl Silsesquioxanes-Assessment of their Dielectric Properties. MATERIALS (BASEL, SWITZERLAND) 2022; 15:8997. [PMID: 36556803 PMCID: PMC9785758 DOI: 10.3390/ma15248997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Revised: 12/09/2022] [Accepted: 12/13/2022] [Indexed: 06/17/2023]
Abstract
We present a smart and efficient methodology for the synthesis of a variety of fluorinated silsesquioxanes (SQs) with diverse Si-O-Si core architecture. The protocol is based on an easy-to-handle and selective hydrosilylation reaction. An investigation on the placement of the reactive Si-HC=CH2 vs. Si-H in the silsesquioxane, as well as silane vs. olefin structure, respectively, on the progress and selectivity of the hydrosilylation process, was studied. Two alternative synthetic pathways for obtaining a variety of fluorine-functionalized silsesquioxanes were developed. As a result, a series of mono- and octa- T8 SQs, tri- 'open-cage' T7 SQs, in addition to di- and tetrafunctionalized double-decker silsesquioxane (DDSQ) derivatives, were obtained selectively with high yields. All products were characterized by spectroscopic (NMR, FTIR) techniques. Selected samples were subjected to the measurements revealing their dielectric permittivity in a wide range of temperatures (from -100 °C to 100 °C) and electric field frequencies (100-106 Hz).
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Affiliation(s)
- Julia Duszczak
- Faculty of Chemistry, Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 8, 61-614 Poznan, Poland
- Centre for Advanced Technologies, Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 10, 61-614 Poznan, Poland
| | - Katarzyna Mituła
- Faculty of Chemistry, Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 8, 61-614 Poznan, Poland
- Centre for Advanced Technologies, Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 10, 61-614 Poznan, Poland
| | - Monika Rzonsowska
- Faculty of Chemistry, Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 8, 61-614 Poznan, Poland
- Centre for Advanced Technologies, Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 10, 61-614 Poznan, Poland
| | - Paweł Ławniczak
- Institute of Molecular Physics Polish Academy of Sciences, Smoluchowskiego 17, 60-179 Poznan, Poland
| | - Rafał Januszewski
- Faculty of Chemistry, Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 8, 61-614 Poznan, Poland
- Centre for Advanced Technologies, Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 10, 61-614 Poznan, Poland
| | - Bartłomiej Szarłan
- Faculty of Chemistry, Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 8, 61-614 Poznan, Poland
- Centre for Advanced Technologies, Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 10, 61-614 Poznan, Poland
| | - Beata Dudziec
- Faculty of Chemistry, Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 8, 61-614 Poznan, Poland
- Centre for Advanced Technologies, Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 10, 61-614 Poznan, Poland
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3
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Niermeyer WL, Rodman C, Li MM, Chiang T. Tissue engineering applications in otolaryngology-The state of translation. Laryngoscope Investig Otolaryngol 2020; 5:630-648. [PMID: 32864434 PMCID: PMC7444782 DOI: 10.1002/lio2.416] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Revised: 04/06/2020] [Accepted: 05/11/2020] [Indexed: 12/14/2022] Open
Abstract
While tissue engineering holds significant potential to address current limitations in reconstructive surgery of the head and neck, few constructs have made their way into routine clinical use. In this review, we aim to appraise the state of head and neck tissue engineering over the past five years, with a specific focus on otologic, nasal, craniofacial bone, and laryngotracheal applications. A comprehensive scoping search of the PubMed database was performed and over 2000 article hits were returned with 290 articles included in the final review. These publications have addressed the hallmark characteristics of tissue engineering (cellular source, scaffold, and growth signaling) for head and neck anatomical sites. While there have been promising reports of effective tissue engineered interventions in small groups of human patients, the majority of research remains constrained to in vitro and in vivo studies aimed at furthering the understanding of the biological processes involved in tissue engineering. Further, differences in functional and cosmetic properties of the ear, nose, airway, and craniofacial bone affect the emphasis of investigation at each site. While otolaryngologists currently play a role in tissue engineering translational research, continued multidisciplinary efforts will likely be required to push the state of translation towards tissue-engineered constructs available for routine clinical use. LEVEL OF EVIDENCE NA.
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Affiliation(s)
| | - Cole Rodman
- The Ohio State University College of MedicineColumbusOhioUSA
| | - Michael M. Li
- Department of Otolaryngology—Head and Neck SurgeryThe Ohio State University Wexner Medical CenterColumbusOhioUSA
| | - Tendy Chiang
- Department of OtolaryngologyNationwide Children's HospitalColumbusOhioUSA
- Department of Otolaryngology—Head and Neck SurgeryThe Ohio State University Wexner Medical CenterColumbusOhioUSA
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4
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Naderi N, Griffin MF, Mosahebi A, Butler PE, Seifalian AM. Adipose derived stem cells and platelet rich plasma improve the tissue integration and angiogenesis of biodegradable scaffolds for soft tissue regeneration. Mol Biol Rep 2020; 47:2005-2013. [PMID: 32072400 PMCID: PMC7688190 DOI: 10.1007/s11033-020-05297-7] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Accepted: 01/31/2020] [Indexed: 11/30/2022]
Abstract
Current surgical reconstruction for soft tissue replacement involves lipotransfer to restore soft tissue replacements but is limited by survival and longevity of the fat tissue. Alternative approaches to overcome these limitations include using biodegradable scaffolds with stem cells with growth factors to generate soft tissue. Adipose derived stem cells (ADSCs) offer great potential to differentiate into adipose, and can be delivered using biodegradable scaffolds. However, the optimal scaffold to maximise this approach is unknown. This study investigates the biocompatibility of nanocomposite scaffolds (POSS-PCL) to deliver ADSCs with and without the addition of growth factors using platelet rich plasma (PRP) in vivo. Rat ADSCs were isolated and then seeded on biodegradable scaffolds (POSS-PCL). In addition, donor rats were used to isolate PRP to modify the scaffolds. The implants were then subcutaneously implanted for 3-months to assess the effect of PRP and ADSC on POSS-PCL scaffolds biocompatibility. Histology after explanation was examined to assess tissue integration (H&E) and collagen production (Massons Trichome). Immunohistochemistry was used to assess angiogenesis (CD3, α-SMA), immune response (CD45, CD68) and adipose formation (PPAR-γ). At 3-months PRP-ADSC-POSS-PCL scaffolds demonstrated significantly increased tissue integration and angiogenesis compared to PRP, ADSC and unmodified scaffolds (p < 0.05). In addition, PRP-ADSC-POSS-PCL scaffolds showed similar levels of CD45 and CD68 staining compared to unmodified scaffolds. Furthermore, there was increased PPAR-γ staining demonstrated at 3-months with PRP-ADSC-POSS-PCL scaffolds (p < 0.05). POSS-PCL nanocomposite scaffolds provide an effective delivery system for ADSCs. PRP and ADSC work synergistically to enhance the biocompatibility of POSS-PCL scaffolds and provide a platform technology for soft tissue regeneration.
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Affiliation(s)
- N Naderi
- UCL Centre for Nanotechnology and Regenerative Medicine, Division of Surgery & Interventional Science, University College London, London, UK.,Royal Free London NHS Foundation Trust Hospital, London, UK.,Plastic and Reconstructive Surgery Department, Royal Free Hospital, University College London, Pond Street, London, UK
| | - M F Griffin
- UCL Centre for Nanotechnology and Regenerative Medicine, Division of Surgery & Interventional Science, University College London, London, UK. .,Royal Free London NHS Foundation Trust Hospital, London, UK. .,Plastic and Reconstructive Surgery Department, Royal Free Hospital, University College London, Pond Street, London, UK.
| | - A Mosahebi
- UCL Centre for Nanotechnology and Regenerative Medicine, Division of Surgery & Interventional Science, University College London, London, UK.,Royal Free London NHS Foundation Trust Hospital, London, UK.,Plastic and Reconstructive Surgery Department, Royal Free Hospital, University College London, Pond Street, London, UK
| | - P E Butler
- UCL Centre for Nanotechnology and Regenerative Medicine, Division of Surgery & Interventional Science, University College London, London, UK.,Royal Free London NHS Foundation Trust Hospital, London, UK.,Plastic and Reconstructive Surgery Department, Royal Free Hospital, University College London, Pond Street, London, UK
| | - A M Seifalian
- UCL Centre for Nanotechnology and Regenerative Medicine, Division of Surgery & Interventional Science, University College London, London, UK.,Director/Professor Nanotechnology & Regenerative Medicine, NanoRegMed Ltd, London, UK
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5
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De Santis MM, Bölükbas DA, Lindstedt S, Wagner DE. How to build a lung: latest advances and emerging themes in lung bioengineering. Eur Respir J 2018; 52:13993003.01355-2016. [PMID: 29903859 DOI: 10.1183/13993003.01355-2016] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2017] [Accepted: 05/30/2018] [Indexed: 12/19/2022]
Abstract
Chronic respiratory diseases remain a major cause of morbidity and mortality worldwide. The only option at end-stage disease is lung transplantation, but there are not enough donor lungs to meet clinical demand. Alternative options to increase tissue availability for lung transplantation are urgently required to close the gap on this unmet clinical need. A growing number of tissue engineering approaches are exploring the potential to generate lung tissue ex vivo for transplantation. Both biologically derived and manufactured scaffolds seeded with cells and grown ex vivo have been explored in pre-clinical studies, with the eventual goal of generating functional pulmonary tissue for transplantation. Recently, there have been significant efforts to scale-up cell culture methods to generate adequate cell numbers for human-scale bioengineering approaches. Concomitantly, there have been exciting efforts in designing bioreactors that allow for appropriate cell seeding and development of functional lung tissue over time. This review aims to present the current state-of-the-art progress for each of these areas and to discuss promising new ideas within the field of lung bioengineering.
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Affiliation(s)
- Martina M De Santis
- Lung Bioengineering and Regeneration, Dept of Experimental Medical Sciences, Lund University, Lund, Sweden.,Lung Repair and Regeneration (LRR), Comprehensive Pneumology Center (CPC), Helmholtz Zentrum Munich, Member of the German Center for Lung Research (DZL), Munich, Germany.,Stem Cell Centre, Lund University, Lund, Sweden.,Wallenberg Center for Molecular Medicine, Lund University, Lund, Sweden
| | - Deniz A Bölükbas
- Lung Bioengineering and Regeneration, Dept of Experimental Medical Sciences, Lund University, Lund, Sweden.,Stem Cell Centre, Lund University, Lund, Sweden.,Wallenberg Center for Molecular Medicine, Lund University, Lund, Sweden
| | - Sandra Lindstedt
- Wallenberg Center for Molecular Medicine, Lund University, Lund, Sweden.,Dept of Cardiothoracic Surgery, Heart and Lung Transplantation, Lund University Hospital, Lund, Sweden
| | - Darcy E Wagner
- Lung Bioengineering and Regeneration, Dept of Experimental Medical Sciences, Lund University, Lund, Sweden .,Lung Repair and Regeneration (LRR), Comprehensive Pneumology Center (CPC), Helmholtz Zentrum Munich, Member of the German Center for Lung Research (DZL), Munich, Germany.,Stem Cell Centre, Lund University, Lund, Sweden.,Wallenberg Center for Molecular Medicine, Lund University, Lund, Sweden
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6
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Designing a tissue-engineered tracheal scaffold for preclinical evaluation. Int J Pediatr Otorhinolaryngol 2018; 104:155-160. [PMID: 29287858 PMCID: PMC5922759 DOI: 10.1016/j.ijporl.2017.10.036] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Revised: 10/22/2017] [Accepted: 10/23/2017] [Indexed: 11/20/2022]
Abstract
OBJECTIVE Recent efforts to tissue engineer long-segment tracheal grafts have been complicated by stenosis and malacia. It has been proposed that both the mechanical characteristics and cell seeding capacity of TETG scaffolds are integral to graft performance. Our aim was to design a tracheal construct that approximates the biomechanical properties of native sheep trachea and optimizes seeding with bone marrow derived mononuclear cells prior to preclinical evaluation in an ovine model. METHODS A solution of 8% polyethylene terephthalate (PET) and 3% polyurethane (PU) was prepared at a ratio of either 8:2 or 2:8 and electrospun onto a custom stainless steel mandrel designed to match the dimensional measurements of the juvenile sheep trachea. 3D-printed porous or solid polycarbonate C-shaped rings were embedded within the scaffolds during electrospinning. The scaffolds underwent compression testing in the anterior-posterior and lateral-medial axes and the biomechanical profiles compared to that of a juvenile ovine trachea. The most biomimetic constructs then underwent vacuum seeding with ovine bone marrow derived mononuclear cells. Fluorometric DNA assay was used to quantify scaffold seeding. RESULTS Both porous and solid rings approximated the biomechanics of the native ovine trachea, but the porous rings were most biomimetic. The load-displacement curve of scaffolds fabricated from a ratio of 2:8 PET:PU most closely mimicked that of native trachea in the anterior-posterior and medial-lateral axes. Solid C-ringed scaffolds had a greater cell seeding efficiency when compared to porous ringed scaffolds (Solid: 19 × 104 vs. Porous: 9.6 × 104 cells/mm3, p = 0.0098). CONCLUSION A long segment tracheal graft composed of 2:8 PET:PU with solid C-rings approximates the biomechanics of the native ovine trachea and demonstrates superior cell seeding capacity of the two prototypes tested. Further preclinical studies using this graft design in vivo would inform the rational design of an optimal TETG scaffold.
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Ghorbani F, Moradi L, Shadmehr MB, Bonakdar S, Droodinia A, Safshekan F. In-vivo characterization of a 3D hybrid scaffold based on PCL/decellularized aorta for tracheal tissue engineering. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 81:74-83. [DOI: 10.1016/j.msec.2017.04.150] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2016] [Accepted: 04/18/2017] [Indexed: 11/30/2022]
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Evaluation of Immunosuppressive Therapy Use for Tracheal Transplantation with Trachea-Mimetic Bellows Scaffolds in a Rabbit Model. BIOMED RESEARCH INTERNATIONAL 2017; 2017:5205476. [PMID: 29226141 PMCID: PMC5684528 DOI: 10.1155/2017/5205476] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Accepted: 09/10/2017] [Indexed: 11/28/2022]
Abstract
The objective of this study was to evaluate the use of immunosuppressive therapy with high-dose cyclosporine, high-dose azathioprine, and a combination of low-dose cyclosporine and azathioprine after tracheal reconstruction by using a trachea-mimetic graft of polycaprolactone (PCL) bellows-type scaffold in a rabbit model. Twenty-four healthy New Zealand white rabbits were used in the study. All underwent circumferential tracheal replacement using tissue-engineered tracheal graft, prepared from PCL bellows scaffold reinforced with silicone ring, collagen hydrogel, and human turbinate mesenchymal stromal cell (hTMSC) sheets. The control group (Group 1) received no medication. The three experimental groups were given daily cyclosporine intramuscular doses of 10 mg/kg (Group 2), azathioprine oral doses of 5 mg/kg (Group 3), and azathioprine oral doses of 2.5 mg/kg plus cyclosporine intramuscular doses of 5 mg/kg (Group 4) for 4 weeks or until death. Group 1 had longer survival times compared to Group 2 or Group 3. Each group except for Group 1 experienced decreases in amount of nutrition and weight loss. In addition, compared with the other groups, Group 2 had significantly increased serum interleukin-2 and interferon-γ levels 7 days after transplantation. The results of this study showed that the administration of cyclosporine and/or azathioprine after tracheal transplantation had no beneficial effects. Furthermore, the administration of cyclosporine had side effects, including extreme weight loss, respiratory distress, and diarrhea. Therefore, cyclosporine and azathioprine avoidance may be recommended for tracheal reconstruction using a native trachea-mimetic graft of PCL bellows-type scaffold in a rabbit model.
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Bhora FY, Lewis EE, Rehmani SS, Ayub A, Raad W, Al-Ayoubi AM, Lebovics RS. Circumferential Three-Dimensional-Printed Tracheal Grafts: Research Model Feasibility and Early Results. Ann Thorac Surg 2017; 104:958-963. [PMID: 28619543 DOI: 10.1016/j.athoracsur.2017.03.064] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2017] [Revised: 03/14/2017] [Accepted: 03/27/2017] [Indexed: 02/05/2023]
Abstract
BACKGROUND Methods for tracheal graft research have presented persistent challenges to investigators, and three-dimensional (3D)-printed biosynthetic grafts offer one potential development platform. We aimed to develop an efficient research platform for customizable circumferential 3D-printed tracheal grafts and evaluate feasibility and early structural integrity with a large-animal model. METHODS Virtual 3D models of porcine subject tracheas were generated using preoperative computed tomography scans. Two designs were used to test graft customizability and the limits of the construction process. Designs I and II used 270-degree and 360-degree external polycaprolactone scaffolds, respectively, both encompassing a circumferential extracellular matrix collagen layer. The polycaprolactone scaffolds were made in a fused-deposition modeling 3D printer and customized to the recipient's anatomy. Design I was implanted in 3 pigs and design II in 2 pigs, replacing 4-ring tracheal segments. Data collected included details of graft construction, clinical outcomes, bronchoscopy, and gross and histologic examination. RESULTS The 3D-printed biosynthetic grafts were produced with high fidelity to the native organ. The fabrication process took 36 hours. Grafts were implanted without immediate complication. Bronchoscopy immediately postoperatively and at 1 week demonstrated patent grafts and appropriate healing. All animals lived beyond a predetermined 1-week survival period. Bronchoscopy at 2 weeks showed significant paraanastomotic granulation tissue, which, along with partial paraanastomotic epithelialization, was confirmed on pathology. Overall survival was 17 to 34 days. CONCLUSIONS We propose a rapid, reproducible, resource efficient method to develop various anatomically precise grafts. Further graft refinement and strategies for granulation tissue management are needed to improve outcomes.
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Affiliation(s)
- Faiz Y Bhora
- Department of Thoracic Surgery, Icahn School of Medicine at Mount Sinai, New York, New York.
| | - Erik E Lewis
- Department of Thoracic Surgery, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Sadiq S Rehmani
- Department of Thoracic Surgery, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Adil Ayub
- Department of Thoracic Surgery, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Wissam Raad
- Department of Thoracic Surgery, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Adnan M Al-Ayoubi
- Department of Thoracic Surgery, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Robert S Lebovics
- Department of Otolaryngology, Mount Sinai West, Mount Sinai Health System, New York, New York
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10
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Kumar R, Griffin M, Butler P. A Review of Current Regenerative Medicine Strategies that Utilize Nanotechnology to Treat Cartilage Damage. Open Orthop J 2016; 10:862-876. [PMID: 28217211 PMCID: PMC5299562 DOI: 10.2174/1874325001610010862] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Revised: 05/31/2016] [Accepted: 05/31/2016] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND Cartilage is an important tissue found in a variety of anatomical locations. Damage to cartilage is particularly detrimental, owing to its intrinsically poor healing capacity. Current reconstructive options for cartilage repair are limited, and alternative approaches are required. Biomaterial science and Tissue engineering are multidisciplinary areas of research that integrate biological and engineering principles for the purpose of restoring premorbid tissue function. Biomaterial science traditionally focuses on the replacement of diseased or damaged tissue with implants. Conversely, tissue engineering utilizes porous biomimetic scaffolds, containing cells and bioactive molecules, to regenerate functional tissue. However, both paradigms feature several disadvantages. Faced with the increasing clinical burden of cartilage defects, attention has shifted towards the incorporation of Nanotechnology into these areas of regenerative medicine. METHODS Searches were conducted on Pubmed using the terms "cartilage", "reconstruction", "nanotechnology", "nanomaterials", "tissue engineering" and "biomaterials". Abstracts were examined to identify articles of relevance, and further papers were obtained from the citations within. RESULTS The content of 96 articles was ultimately reviewed. The literature yielded no studies that have progressed beyond in vitro and in vivo experimentation. Several limitations to the use of nanomaterials to reconstruct damaged cartilage were identified in both the tissue engineering and biomaterial fields. CONCLUSION Nanomaterials have unique physicochemical properties that interact with biological systems in novel ways, potentially opening new avenues for the advancement of constructs used to repair cartilage. However, research into these technologies is in its infancy, and clinical translation remains elusive.
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Affiliation(s)
- R. Kumar
- Medicine, UCL Division of Surgery & Interventional Science, London, UK
| | - M. Griffin
- Medicine, UCL Division of Surgery & Interventional Science, London, UK
| | - P.E. Butler
- Medicine, UCL Division of Surgery & Interventional Science, London, UK
- Department of Plastic and Reconstructive Surgery, Royal Free Hampstead NHS Trust Hospital, London, UK
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11
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New SEP, Ibrahim A, Guasti L, Zucchelli E, Birchall M, Bulstrode NW, Seifalian AM, Ferretti P. Towards reconstruction of epithelialized cartilages from autologous adipose tissue-derived stem cells. J Tissue Eng Regen Med 2016; 11:3078-3089. [PMID: 27804241 DOI: 10.1002/term.2211] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2015] [Revised: 04/01/2016] [Accepted: 04/14/2016] [Indexed: 12/27/2022]
Abstract
Deformities of the upper airways, including those of the nose and throat, are typically corrected by reconstructive surgery. The use of autologous somatic stem cells for repair of defects could improve quality and outcomes of such operations. The present study explored the ability of paediatric adipose-derived stem cells (pADSCs), a readily available source of autologous stem cells, to generate a cartilage construct with a functional epithelium. Paediatric ADSCs seeded on the biodegradable nanocomposite polymer, polyhedral oligomeric silsesquioxane poly(ϵ-caprolactone-urea) urethane (POSS-PCL), proliferated and differentiated towards mesenchymal lineages. The ADSCs infiltrated three-dimensional POSS-PCL nanoscaffold and chondroid matrix was observed throughout chondrogenically induced samples. In ovo chorioallantoic membrane-grafted ADSC-nanoscaffold composites were enwrapped by host vessels indicating good compatibility in an in vivo system. Furthermore, pADSCs could be induced to transdifferentiate towards barrier-forming epithelial-like cells. By combining differentiation protocols, it was possible to generate epithelial cell lined chondrogenic micromasses from the same pADSC line. This proof-of-concept study appears to be the first to demonstrate that individual pADSC lines can differentiate towards two different germ lines and be successfully co-cultured. This has important implications for bioengineering of paediatric airways and further confirms the plastic nature of ADSCs. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- Sophie E P New
- Stem Cell and Regenerative Medicine Section, UCL Great Ormond Street Institute of Child Health, University College London (UCL), London, UK
| | - Amel Ibrahim
- Stem Cell and Regenerative Medicine Section, UCL Great Ormond Street Institute of Child Health, University College London (UCL), London, UK.,UCL Ear Institute, Royal National Throat, Nose and Ear Hospital, UCL, London, UK
| | - Leonardo Guasti
- Centre for Endocrinology, William Harvey Research Institute, Barts and the London, Queen Mary University of London, London, UK
| | - Eleonora Zucchelli
- Stem Cell and Regenerative Medicine Section, UCL Great Ormond Street Institute of Child Health, University College London (UCL), London, UK
| | - Martin Birchall
- UCL Ear Institute, Royal National Throat, Nose and Ear Hospital, UCL, London, UK
| | - Neil W Bulstrode
- Department of Plastic Surgery, Great Ormond Street Hospital NHS Trust, London, UK
| | - Alexander M Seifalian
- Centre for Nanotechnology and Regenerative Medicine, Division of Surgery and Interventional Science, UCL, London, UK
| | - Patrizia Ferretti
- Stem Cell and Regenerative Medicine Section, UCL Great Ormond Street Institute of Child Health, University College London (UCL), London, UK
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12
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Chiang T, Pepper V, Best C, Onwuka E, Breuer CK. Clinical Translation of Tissue Engineered Trachea Grafts. Ann Otol Rhinol Laryngol 2016; 125:873-885. [PMID: 27411362 DOI: 10.1177/0003489416656646] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
OBJECTIVE To provide a state-of-the-art review discussing recent achievements in tissue engineered tracheal reconstruction. DATA SOURCES AND REVIEW METHODS A structured PubMed search of the current literature up to and including October 2015. Representative articles that discuss the translation of tissue engineered tracheal grafts (TETG) were reviewed. CONCLUSIONS The integration of a biologically compatible support with autologous cells has resulted in successful regeneration of respiratory epithelium, cartilage, and vascularization with graft patency, although the optimal construct composition has yet to be defined. Segmental TETG constructs are more commonly complicated by stenosis and delayed epithelialization when compared to patch tracheoplasty. IMPLICATIONS FOR PRACTICE The recent history of human TETG recipients represents revolutionary proof of principle studies in regenerative medicine. Application of TETG remains limited to a compassionate use basis; however, defining the mechanisms of cartilage formation, epithelialization, and refinement of in vivo regeneration will advance the translation of TETG from the bench to the bedside.
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Affiliation(s)
- Tendy Chiang
- Tissue Engineering and Surgical Research, The Research Institute at Nationwide Children's Hospital, Columbus, Ohio, USA Department of Pediatric Otolaryngology, Nationwide Children's Hospital, Columbus, Ohio, USA Department of Otolaryngology-Head & Neck Surgery, The Ohio State University College of Medicine, Columbus, Ohio, USA
| | - Victoria Pepper
- Tissue Engineering and Surgical Research, The Research Institute at Nationwide Children's Hospital, Columbus, Ohio, USA Department of Pediatric Surgery, Nationwide Children's Hospital, Columbus, Ohio, USA
| | - Cameron Best
- Tissue Engineering and Surgical Research, The Research Institute at Nationwide Children's Hospital, Columbus, Ohio, USA
| | - Ekene Onwuka
- Tissue Engineering and Surgical Research, The Research Institute at Nationwide Children's Hospital, Columbus, Ohio, USA Department of Surgery, The Ohio State University, Wexner Medical Center, Columbus, Ohio, USA
| | - Christopher K Breuer
- Tissue Engineering and Surgical Research, The Research Institute at Nationwide Children's Hospital, Columbus, Ohio, USA Department of Pediatric Surgery, Nationwide Children's Hospital, Columbus, Ohio, USA
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Massie I, Dietrich J, Roth M, Geerling G, Mertsch S, Schrader S. Development of Causative Treatment Strategies for Lacrimal Gland Insufficiency by Tissue Engineering and Cell Therapy. Part 2: Reconstruction of Lacrimal Gland Tissue: What Has Been Achieved So Far and What Are the Remaining Challenges? Curr Eye Res 2016; 41:1255-1265. [DOI: 10.3109/02713683.2016.1151531] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Isobel Massie
- Labor für Experimentelle Ophthalmologie, University of Düsseldorf, Düsseldorf, Germany
| | - Jana Dietrich
- Labor für Experimentelle Ophthalmologie, University of Düsseldorf, Düsseldorf, Germany
| | - Mathias Roth
- Labor für Experimentelle Ophthalmologie, University of Düsseldorf, Düsseldorf, Germany
| | - Gerd Geerling
- Augenklinik, Universitätsklinikum Düsseldorf, Düsseldorf, Germany
| | - Sonja Mertsch
- Labor für Experimentelle Ophthalmologie, University of Düsseldorf, Düsseldorf, Germany
| | - Stefan Schrader
- Labor für Experimentelle Ophthalmologie, University of Düsseldorf, Düsseldorf, Germany
- Augenklinik, Universitätsklinikum Düsseldorf, Düsseldorf, Germany
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14
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Maughan E, Lesage F, Butler CR, Hynds RE, Hewitt R, Janes SM, Deprest JA, Coppi PD. Airway tissue engineering for congenital laryngotracheal disease. Semin Pediatr Surg 2016; 25:186-90. [PMID: 27301606 DOI: 10.1053/j.sempedsurg.2016.02.012] [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: 01/08/2023]
Abstract
Regenerative medicine offers hope of a sustainable solution for severe airway disease by the creation of functional, immunocompatible organ replacements. When considering fetuses and newborns, there is a specific spectrum of airway pathologies that could benefit from cell therapy and tissue engineering applications. While hypoplastic lungs associated with congenital diaphragmatic hernia (CDH) could benefit from cellular based treatments aimed at ameliorating lung function, patients with upper airway obstruction could take advantage from a de novo tissue engineering approach. Moreover, the international acceptance of the EXIT procedure as a means of securing the precarious neonatal airway, together with the advent of fetal surgery as a method of heading off postnatal co-morbidities, offers the revolutionary possibility of extending the clinical indication for tissue-engineered airway transplantation to infants affected by diverse severe congenital laryngotracheal malformations. This article outlines the necessary basic components for regenerative medicine solutions in this potential clinical niche.
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Affiliation(s)
- Elizabeth Maughan
- Stem Cells and Regenerative Medicine Section, DBC, UCL Institute of Child Health, 30 Guilford St, London, UK; Lungs for Living Research Centre, UCL Respiratory, University College London, London, UK
| | - Flore Lesage
- Lungs for Living Research Centre, UCL Respiratory, University College London, London, UK; Department of Development and Regeneration, Biomedical Sciences Group, University of Leuven, Leuven, Belgium
| | - Colin R Butler
- Stem Cells and Regenerative Medicine Section, DBC, UCL Institute of Child Health, 30 Guilford St, London, UK; Lungs for Living Research Centre, UCL Respiratory, University College London, London, UK
| | - Robert E Hynds
- Lungs for Living Research Centre, UCL Respiratory, University College London, London, UK
| | - Richard Hewitt
- Ear, Nose and Throat Department, Great Ormond Street Hospital, London, UK
| | - Sam M Janes
- Lungs for Living Research Centre, UCL Respiratory, University College London, London, UK
| | - Jan A Deprest
- Stem Cells and Regenerative Medicine Section, DBC, UCL Institute of Child Health, 30 Guilford St, London, UK; Department of Development and Regeneration, Biomedical Sciences Group, University of Leuven, Leuven, Belgium; Department of Paediatric Surgery, Great Ormond Street Hospital, London, UK; Department of Obstetrics and Gynaecology, Fetal Medicine Unit, University Hospitals Leuven, Leuven, Belgium
| | - Paolo De Coppi
- Stem Cells and Regenerative Medicine Section, DBC, UCL Institute of Child Health, 30 Guilford St, London, UK; Department of Paediatric Surgery, Great Ormond Street Hospital, London, UK.
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15
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Treatment of large tracheal defects after resection: Laryngotracheal release and tracheal replacement. Auris Nasus Larynx 2016; 43:602-8. [PMID: 27085818 DOI: 10.1016/j.anl.2016.03.009] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2016] [Revised: 03/22/2016] [Accepted: 03/28/2016] [Indexed: 11/23/2022]
Abstract
OBJECTIVE Resection with direct tracheal or laryngotracheal anastomosis is the standard procedure employed for treatment of benign stenosis or occasionally primary or secondary tracheal malignancy. DATA SOURCES Literature review. RESULTS A tracheal anastomosis usually heals without complications provided that the ends being joined are adequately supplied with blood, an atraumatic suturing technique is used, and the anastomosis does not become infected. It is especially important that the anastomosis is not subjected to tension. CONCLUSION Various techniques of laryngeal and tracheal release serve to reduce the tension on the anastomosis by mobilizing and reducing the distance between the two segments to be approximated. These techniques can be used in different combinations depending on situation encountered during surgery. In cases where more than 50% of the tracheal length must be excised, prosthetic replacements, autologous tissue transfer and allografts are required. All present various problems. The use of tissue-engineering techniques utilizing autologous stem cells has opened new perspectives for tracheal replacement. Such procedures are still in an experimental state.
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16
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Bogan SL, Teoh GZ, Birchall MA. Tissue Engineered Airways: A Prospects Article. J Cell Biochem 2016; 117:1497-505. [PMID: 26853803 DOI: 10.1002/jcb.25512] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2016] [Accepted: 02/05/2016] [Indexed: 11/11/2022]
Abstract
An ideal tracheal scaffold must withstand luminal collapse yet be flexible, have a sufficient degree of porosity to permit vascular and cellular ingrowth, but also be airtight and must facilitate growth of functional airway epithelium to avoid infection and aid in mucocilliary clearance. Finally, the scaffold must also be biocompatible to avoid implant rejection. Over the last 40 years, efforts to design and manufacture the airway have been undertaken worldwide but success has been limited and far apart. As a result, tracheal resection with primary repair remains the Gold Standard of care for patients presenting with airway disorders and malignancies. However, the maximum resectable length of the trachea is restricted to 30% of the total length in children or 50% in adults. Attempts to provide autologous grafts for human application have also been disappointing for a host of different reasons, including lack of implant integration, insufficient donor organs, and poor mechanical strength resulting in an unmet clinical need. The two main approaches researchers have taken to address this issue have been the development of synthetic scaffolds and the use of decellularized organs. To date, a number of different decellularization techniques and a variety of materials, including polyglycolic acid (PGA) and nanocomposite polymers have been explored. The findings thus far have shown great promise, however, there remain a significant number of caveats accompanying each approach. That being said, the possibilities presented by these two approaches could be combined to produce a highly successful, clinically viable hybrid scaffold. This article aims to highlight advances in airway tissue engineering and provide an overview of areas to explore and utilize in accomplishing the aim of developing an ideal tracheal prosthesis. J. Cell. Biochem. 117: 1497-1505, 2016. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Stephanie L Bogan
- University College London, Gower Street London WC1E 6BT, United Kingdom of Great Britain and Northern Ireland
| | - Gui Zhen Teoh
- University College London, Gower Street London WC1E 6BT, United Kingdom of Great Britain and Northern Ireland
| | - Martin A Birchall
- University College London, Gower Street London WC1E 6BT, United Kingdom of Great Britain and Northern Ireland.,Royal National Throat Nose and Ear Hospital, London WC1X 8DA, United Kingdom of Great Britain and Northern Ireland
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17
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Kumar S, Maiti P. Controlled biodegradation of polymers using nanoparticles and its application. RSC Adv 2016. [DOI: 10.1039/c6ra08641a] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Controlled biodegradation mechanism has been revealed using different nanoparticles which eventually regulate pH of media.
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Affiliation(s)
- Sunil Kumar
- School of Materials Science and Technology
- Indian Institute of Technology (Banaras Hindu University)
- Varanasi 221 005
- India
| | - Pralay Maiti
- School of Materials Science and Technology
- Indian Institute of Technology (Banaras Hindu University)
- Varanasi 221 005
- India
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18
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Clark ES, Best C, Onwuka E, Sugiura T, Mahler N, Bolon B, Niehaus A, James I, Hibino N, Shinoka T, Johnson J, Breuer CK. Effect of cell seeding on neotissue formation in a tissue engineered trachea. J Pediatr Surg 2016; 51:49-55. [PMID: 26552897 PMCID: PMC4824302 DOI: 10.1016/j.jpedsurg.2015.10.008] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Accepted: 10/06/2015] [Indexed: 01/11/2023]
Abstract
BACKGROUND Surgical management of long segment tracheal disease is limited by a paucity of donor tissue and poor performance of synthetic materials. A potential solution is the development of a tissue-engineered tracheal graft (TETG) which promises an autologous airway conduit with growth capacity. METHODS We created a TETG by vacuum seeding bone marrow-derived mononuclear cells (BM-MNCs) on a polymeric nanofiber scaffold. First, we evaluated the role of scaffold porosity on cell seeding efficiency in vitro. We then determined the effect of cell seeding on graft performance in vivo using an ovine model. RESULTS Seeding efficiency of normal porosity (NP) grafts was significantly increased when compared to high porosity (HP) grafts (NP: 360.3 ± 69.19 × 10(3) cells/mm(2); HP: 133.7 ± 22.73 × 10(3) cells/mm(2); p<0.004). Lambs received unseeded (n=2) or seeded (n=3) NP scaffolds as tracheal interposition grafts for 6 weeks. Three animals were terminated early owing to respiratory complications (n=2 unseeded, n=1 seeded). Seeded TETG explants demonstrated wound healing, epithelial migration, and delayed stenosis when compared to their unseeded counterparts. CONCLUSION Vacuum seeding BM-MNCs on nanofiber scaffolds for immediate implantation as tracheal interposition grafts is a viable approach to generate TETGs, but further preclinical research is warranted before advocating this technology for clinical application.
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Affiliation(s)
- Elizabeth S. Clark
- Tissue Engineering and Surgical Research, The Research Institute at Nationwide Children’s Hospital, 700 Children’s Drive – Suite WB4154, Columbus, OH, 43205,Department of Veterinary Biosciences, College of Veterinary Medicine, The Ohio State University, 1900 Coffey Road, Columbus, OH, 43210
| | - Cameron Best
- Tissue Engineering and Surgical Research, The Research Institute at Nationwide Children’s Hospital, 700 Children’s Drive – Suite WB4154, Columbus, OH, 43205
| | - Ekene Onwuka
- Tissue Engineering and Surgical Research, The Research Institute at Nationwide Children’s Hospital, 700 Children’s Drive – Suite WB4154, Columbus, OH, 43205,Department of Surgery, The Ohio State University, 395 W. 12th Avenue – Suite 670, Columbus, OH, 43210
| | - Tadahisa Sugiura
- Tissue Engineering and Surgical Research, The Research Institute at Nationwide Children’s Hospital, 700 Children’s Drive – Suite WB4154, Columbus, OH, 43205
| | - Nathan Mahler
- Tissue Engineering and Surgical Research, The Research Institute at Nationwide Children’s Hospital, 700 Children’s Drive – Suite WB4154, Columbus, OH, 43205
| | - Brad Bolon
- Department of Veterinary Biosciences, College of Veterinary Medicine, The Ohio State University, 1900 Coffey Road, Columbus, OH, 43210,Comparative Pathology and Mouse Phenotyping Shared Resource, College of Veterinary Medicine, The Ohio State University, 1900 Coffey Road, Columbus, OH, 43210
| | - Andrew Niehaus
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, The Ohio State University, 601 Vernon Tharp Street, Columbus, OH, 43210
| | - Iyore James
- Tissue Engineering and Surgical Research, The Research Institute at Nationwide Children’s Hospital, 700 Children’s Drive – Suite WB4154, Columbus, OH, 43205
| | - Narutoshi Hibino
- Tissue Engineering and Surgical Research, The Research Institute at Nationwide Children’s Hospital, 700 Children’s Drive – Suite WB4154, Columbus, OH, 43205,Department of Cardiothoracic Surgery, Nationwide Children’s Hospital, 700 Children’s Drive, Columbus, OH, 43205
| | - Toshiharu Shinoka
- Tissue Engineering and Surgical Research, The Research Institute at Nationwide Children’s Hospital, 700 Children’s Drive – Suite WB4154, Columbus, OH, 43205,Department of Cardiothoracic Surgery, Nationwide Children’s Hospital, 700 Children’s Drive, Columbus, OH, 43205
| | - Jed Johnson
- Nanofiber Solutions, Inc., 1275 Kinnear Road, Columbus, OH, 43212
| | - Christopher K. Breuer
- Tissue Engineering and Surgical Research, The Research Institute at Nationwide Children’s Hospital, 700 Children’s Drive – Suite WB4154, Columbus, OH, 43205,Department of Pediatric Surgery, Nationwide Children’s Hospital, 700 Children’s Drive, Columbus, OH, 43205
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19
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Dejong CHC, Earnshaw JJ. Surgical innovation. Br J Surg 2015; 102:e8-9. [PMID: 25627138 DOI: 10.1002/bjs.9727] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2014] [Accepted: 10/30/2014] [Indexed: 12/16/2022]
Abstract
More necessary than ever
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Affiliation(s)
- C H C Dejong
- Department of Surgery, Maastricht University Medical Centre, Euregional HepatoPancreatoBiliary Collaboration Aachen-Maastricht, NUTRIM School for Nutrition, Toxicology and Metabolism, and GROW School for Oncology and Developmental Biology, PO Box 5800, 6202AZ Maastricht, The Netherlands
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