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Khalid U, Uchikov P, Hristov B, Kraev K, Koleva-Ivanova M, Kraeva M, Batashki A, Taneva D, Doykov M, Uchikov A. Surgical Innovations in Tracheal Reconstruction: A Review on Synthetic Material Fabrication. MEDICINA (KAUNAS, LITHUANIA) 2023; 60:40. [PMID: 38256300 PMCID: PMC10820818 DOI: 10.3390/medicina60010040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 12/19/2023] [Accepted: 12/22/2023] [Indexed: 01/24/2024]
Abstract
Background and Objectives: The aim of this review is to explore the recent surgical innovations in tracheal reconstruction by evaluating the uses of synthetic material fabrication when dealing with tracheomalacia or stenotic pathologies, then discussing the challenges holding back these innovations. Materials and Methods: A targeted non-systematic review of published literature relating to tracheal reconstruction was performed within the PubMed database to help identify how synthetic materials are utilised to innovate tracheal reconstruction. Results: The advancements in 3D printing to aid synthetic material fabrication have unveiled promising alternatives to conventional approaches. Achieving successful tracheal reconstruction through this technology demands that the 3D models exhibit biocompatibility with neighbouring tracheal elements by encompassing vasculature, chondral foundation, and immunocompatibility. Tracheal reconstruction has employed grafts and scaffolds, showing a promising beginning in vivo. Concurrently, the integration of resorbable models and stem cell therapy serves to underscore their viability and application in the context of tracheal pathologies. Despite this, certain barriers hinder its advancement in surgery. The intricate tracheal structure has posed a challenge for researchers seeking novel approaches to support its growth and regeneration. Conclusions: The potential of synthetic material fabrication has shown promising outcomes in initial studies involving smaller animals. Yet, to fully realise the applicability of these innovative developments, research must progress toward clinical trials. These trials would ascertain the anatomical and physiological effects on the human body, enabling a thorough evaluation of post-operative outcomes and any potential complications linked to the materials or cells implanted in the trachea.
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Affiliation(s)
- Usman Khalid
- Medical Faculty, Medical University of Plovdiv, 4000 Plovdiv, Bulgaria
| | - Petar Uchikov
- Department of Special Surgery, Faculty of Medicine, Medical University of Plovdiv, 4000 Plovdiv, Bulgaria
| | - Bozhidar Hristov
- Section "Gastroenterology", Second Department of Internal Diseases, Medical Faculty, Medical University of Plovdiv, 4000 Plovdiv, Bulgaria
| | - Krasimir Kraev
- Department of Propedeutics of Internal Diseases, Medical Faculty, Medical University of Plovdiv, 4000 Plovdiv, Bulgaria
| | - Maria Koleva-Ivanova
- Department of General and Clinical Pathology, Faculty of Medicine, Medical University of Plovdiv, 4000 Plovdiv, Bulgaria
| | - Maria Kraeva
- Department of Otorhynolaryngology, Medical Faculty, Medical University of Plovdiv, 4000 Plovdiv, Bulgaria
| | - Atanas Batashki
- Department of Special Surgery, Faculty of Medicine, Medical University of Plovdiv, 4000 Plovdiv, Bulgaria
| | - Daniela Taneva
- Department of Nursing Care, Faculty of Public Health, Medical University of Plovdiv, 4000 Plovdiv, Bulgaria
| | - Mladen Doykov
- Department of Urology and General Medicine, Medical Faculty, Medical University of Plovdiv, 4000 Plovdiv, Bulgaria
| | - Angel Uchikov
- Department of Special Surgery, Faculty of Medicine, Medical University of Plovdiv, 4000 Plovdiv, Bulgaria
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2
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Bai B, Hou M, Hao J, Liu Y, Ji G, Zhou G. Research progress in seed cells for cartilage tissue engineering. Regen Med 2022; 17:659-675. [PMID: 35703020 DOI: 10.2217/rme-2022-0023] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Cartilage defects trouble millions of patients worldwide and their repair via conventional treatment is difficult. Excitingly, tissue engineering technology provides a promising strategy for efficient cartilage regeneration with structural regeneration and functional reconstruction. Seed cells, as biological prerequisites for cartilage regeneration, determine the quality of regenerated cartilage. The proliferation, differentiation and chondrogenesis of seed cells are greatly affected by their type, origin and generation. Thus, a systematic description of the characteristics of seed cells is necessary. This article reviews in detail the cellular characteristics, research progress, clinical translation challenges and future research directions of seed cells while providing guidelines for selecting appropriate seed cells for cartilage regeneration.
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Affiliation(s)
- Baoshuai Bai
- Research Institute of Plastic Surgery, Wei Fang Medical University, Wei Fang, Shandong, 261053, China.,Shanghai Key Laboratory of Tissue Engineering, Department of Plastic & Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200240, China.,National Tissue Engineering Center of China, Shanghai, 200240, China
| | - Mengjie Hou
- Shanghai Key Laboratory of Tissue Engineering, Department of Plastic & Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200240, China.,National Tissue Engineering Center of China, Shanghai, 200240, China
| | - Junxiang Hao
- Research Institute of Plastic Surgery, Wei Fang Medical University, Wei Fang, Shandong, 261053, China.,Shanghai Key Laboratory of Tissue Engineering, Department of Plastic & Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200240, China.,National Tissue Engineering Center of China, Shanghai, 200240, China
| | - Yanhan Liu
- Shanghai JiaoTong University School of Medicine, Shanghai, 200240, China
| | - Guangyu Ji
- Department of Thoracic Surgery, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, 200240, China
| | - Guangdong Zhou
- Research Institute of Plastic Surgery, Wei Fang Medical University, Wei Fang, Shandong, 261053, China.,Shanghai Key Laboratory of Tissue Engineering, Department of Plastic & Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200240, China.,National Tissue Engineering Center of China, Shanghai, 200240, China
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3
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Ohno M, Fuchimoto Y, Higuchi M, Yamaoka T, Komura M, Umezawa A, Hsu HC, Enosawa S, Kuroda T. Long-term observation of airway reconstruction using decellularized tracheal allografts in micro-miniature pigs at growing stage. Regen Ther 2020; 15:64-69. [PMID: 33426203 PMCID: PMC7770338 DOI: 10.1016/j.reth.2020.04.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Revised: 04/15/2020] [Accepted: 04/25/2020] [Indexed: 12/30/2022] Open
Abstract
Introduction Decellularized tissue exhibits cell matrix-like properties, along with reduced antigenicity. We explored the potential of decellularized allogeneic trachea to restore the upper respiratory tract, focusing on pediatric application. This study specifically aimed at long-term observation of tissue regeneration using a micro-miniature pig model. Methods Artificial defects (15 × 15 mm) in the subglottis and trachea of micro-miniature pigs were repaired by transplantation of either allogeneic decellularized or fresh (control) tracheal patches. Pigs were evaluated in situ, by bronchoscopy, every three months, and sacrificed for histological examination at six and twelve months after transplantation. Results No airway symptom was observed in any pig during the observation period. Bronchoscopy revealed the tracheal lumen to be restored by fresh grafts, showing an irregular surface with remarkable longitudinal compression; these changes were mild after restoration with decellularized grafts. Histologically, while fresh graft patches were denatured and replaced by calcified tissue, decellularized patches remained unchanged throughout the observation period. There were regeneration foci of cartilage adjacent to the grafts, and some foci joined the decellularized graft uniformly, suggesting the induction of tracheal reconstitution. Conclusion Allogeneic decellularized tracheal tissue could serve as a promising biomaterial for tracheal restoration, especially for pediatric patients at the growing stage.
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Affiliation(s)
- Michinobu Ohno
- Department of Pediatric Surgery, Saitama City Hospital, 2460 Mimuro, Midori-ku, Saitama-shi, Saitama 336-8522, Japan.,Division of Surgery, Department of Surgical Specialties, National Center for Child Health and Development, 2-10-1 Okura, Setagaya-ku, Tokyo 157-8535, Japan
| | - Yasushi Fuchimoto
- Department of Pediatric Surgery, International University of Health and Welfare School of Medicine, 2600-1 Kitakanemaru, Ohtawara-shi, Tochigi 324-8501, Japan.,Department of Pediatric Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjyuku-ku, Tokyo 160-8582, Japan
| | - Masataka Higuchi
- Division of Pulmonology, Department of Medical Specialties, National Center for Child Health and Development, 2-10-1 Okura, Setagaya-ku, Tokyo 157-8535, Japan
| | - Tetsuji Yamaoka
- Department of Biomedical Engineering, National Cerebral and Cardiovascular Center Research Institute, 6-1 Kishibe-Shimmachi, Suita, Osaka 564-8565, Japan
| | - Makoto Komura
- Department of Pediatric Surgery, Graduate School of Medicine, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Akihiro Umezawa
- Department of Reproductive Biology, National Center for Child Health and Development, 2-10-1 Okura, Setagaya-ku, Tokyo 157-8535, Japan
| | - Huai-Che Hsu
- Division for Advanced Medical Sciences, National Center for Child Health and Development, 2-10-1 Okura,Setagaya-ku, Tokyo 157-8535, Japan
| | - Shin Enosawa
- Division for Advanced Medical Sciences, National Center for Child Health and Development, 2-10-1 Okura,Setagaya-ku, Tokyo 157-8535, Japan
| | - Tatsuo Kuroda
- Department of Pediatric Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjyuku-ku, Tokyo 160-8582, Japan
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4
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Jung SY, Tran ANT, Kim HY, Choi E, Lee SJ, Kim HS. Development of Acellular Respiratory Mucosal Matrix Using Porcine Tracheal Mucosa. Tissue Eng Regen Med 2020; 17:433-443. [PMID: 32390116 DOI: 10.1007/s13770-020-00260-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 04/02/2020] [Accepted: 04/03/2020] [Indexed: 10/24/2022] Open
Abstract
BACKGROUND Respiratory mucosa defects result in airway obstruction and infection, requiring subsequent functional recovery of the respiratory epithelium. Because site-specific extracellular matrix (ECM) facilitates restoration of organ function by promoting cellular migration and engraftment, previous studies considered decellularized trachea an ideal ECM; however, incomplete cell removal from cartilage and mucosal-architecture destruction are frequently reported. Here, we developed a decellularization protocol and applied it to the respiratory mucosa of separated porcine tracheas. METHODS The trachea was divided into groups according to decellularization protocol: native mucosa, freezing-thawing (FT), FT followed by the use of Perasafe-based chemical agents before mucosal separation (wFTP), after mucosal separation (mFTP), and followed by DNase decellularization (mFTD). Decellularization efficacy was evaluated by DNA quantification and hematoxylin and eosin staining, and ECM content of the scaffold was evaluated by histologic analysis and glycosaminoglycan and collagen assays. Biocompatibility was assessed by cell-viability assay and in vivo transplantation. RESULTS The mFTP mucosa showed low antigenicity and maintained the ECM to form a proper microstructure. Additionally, tonsil-derived stem cells remained viable when cultured with or seeded onto mFTP mucosa, and the in vivo host response showed a constructive pattern following implantation of the mFTP scaffolds. CONCLUSION These results demonstrated that xenogenic acellular respiratory mucosa matrix displayed suitable biocompatibility as a scaffold material for respiratory mucosa engineering.
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Affiliation(s)
- Soo Yeon Jung
- Department of Otorhinolaryngology - Head and Neck Surgery, College of Medicine, Ewha Womans University, Anyangcheon-ro 1071, Yang Cheon-Gu, Seoul, 07985, Korea
| | - An Nguyen-Thuy Tran
- Department of Otorhinolaryngology - Head and Neck Surgery, College of Medicine, Ewha Womans University, Anyangcheon-ro 1071, Yang Cheon-Gu, Seoul, 07985, Korea
| | - Ha Yeong Kim
- Department of Otorhinolaryngology - Head and Neck Surgery, College of Medicine, Ewha Womans University, Anyangcheon-ro 1071, Yang Cheon-Gu, Seoul, 07985, Korea.,Department of Molecular Medicine, College of Medicine, Ewha Womans University, Seoul, 07985, Korea
| | - Euno Choi
- Department of Pathology, College of Medicine, Ewha Womans University, Seoul, 07985, Korea
| | - So Jeong Lee
- Department of Otorhinolaryngology - Head and Neck Surgery, College of Medicine, Ewha Womans University, Anyangcheon-ro 1071, Yang Cheon-Gu, Seoul, 07985, Korea
| | - Han Su Kim
- Department of Otorhinolaryngology - Head and Neck Surgery, College of Medicine, Ewha Womans University, Anyangcheon-ro 1071, Yang Cheon-Gu, Seoul, 07985, Korea.
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5
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Dhasmana A, Singh A, Rawal S. Biomedical grafts for tracheal tissue repairing and regeneration "Tracheal tissue engineering: an overview". J Tissue Eng Regen Med 2020; 14:653-672. [PMID: 32064791 DOI: 10.1002/term.3019] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Revised: 01/28/2020] [Accepted: 01/30/2020] [Indexed: 12/23/2022]
Abstract
Airway system is a vital part of the living being body. Trachea is the upper respiratory portion that connects nostril and lungs and has multiple functions such as breathing and entrapment of dust/pathogen particles. Tracheal reconstruction by artificial prosthesis, stents, and grafts are performed clinically for the repairing of damaged tissue. Although these (above-mentioned) methods repair the damaged parts, they have limited applicability like small area wounds and lack of functional tissue regeneration. Tissue engineering helps to overcome the above-mentioned problems by modifying the traditional used stents and grafts, not only repair but also regenerate the damaged area to functional tissue. Bioengineered tracheal replacements are biocompatible, nontoxic, porous, and having 3D biomimetic ultrastructure with good mechanical strength, which results in faster and better tissue regeneration. Till date, the bioengineered tracheal replacements studies have been going on preclinical and clinical levels. Besides that, still many researchers are working at advance level to make extracellular matrix-based acellular, 3D printed, cell-seeded grafts including living cells to overcome the demand of tissue or organ and making the ready to use tracheal reconstructs for clinical application. Thus, in this review, we summarized the tracheal tissue engineering aspects and their outcomes.
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Affiliation(s)
- Archna Dhasmana
- Department of Biotechnology, School of Applied and Life Sciences, Uttaranchal University, Dehradun, India
| | - Atul Singh
- Department of Biotechnology, School of Applied and Life Sciences, Uttaranchal University, Dehradun, India
| | - Sagar Rawal
- Department of Biotechnology, School of Applied and Life Sciences, Uttaranchal University, Dehradun, India
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6
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Zahiri S, Masaeli E, Poorazizi E, Nasr-Esfahani MH. Chondrogenic response in presence of cartilage extracellular matrix nanoparticles. J Biomed Mater Res A 2019; 106:2463-2471. [PMID: 29664223 DOI: 10.1002/jbm.a.36440] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2017] [Revised: 02/26/2018] [Accepted: 03/28/2018] [Indexed: 12/19/2022]
Abstract
Current studies based on regenerative medicine suggest, decellularized extracellular matrix (DC-ECM) components can regulate cell phenotype. In this regard, it is believed, presence of cartilage extracellular matrix particles in culture condition could produce physical and biochemical supportive cues for chondrogenesis. In this study, DC-ECM nanoparticles with average size of 61.5± 22.4 nm were produced by decellularization and mechanical processing. Homogenous distribution and nanoscale size of yield particles were observed by scanning electron microscopy (SEM) and transmission electron microscopy (TEM) microscopy imaging. Chemical structure preservation of cartilage ECM after decellularization was also confirmed by typical Fourier transform infrared (FTIR) spectrum mapping. The influence these nanoparticles on chondrogenic response of chondrocyte cells was investigated by direct and indirect addition of nanoparticles to culture medium. A clinical devitalized cartilage powder (DV-ECM) was also used as a positive control. Totally, MTS results showed that direct and indirect presence of both DC-ECM and DV-ECM particles in culture medium enhanced cellular metabolic activity except on day one of culture. Furthermore, on day 21, SOX9 and COL2 expression of cultured chondrocytes in the medium containing DC-ECM nanoparticles were up-regulated in comparison to negative control, which was further confirmed by presence more frequent number of larger size lacunae in micromass spheroids. Our findings support the use of ECM nanoparticles as condition supplement in culture medium and injectable biomaterials, especially for cell-based therapies for cartilage regeneration. © 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 106A:2463-2471, 2018.
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Affiliation(s)
- Saeed Zahiri
- Department of Cellular Biotechnology, Cell Science Research Center, Royan Institute for Biotechnology, ACECR, Isfahan, Iran.,Department of Tissue Engineering, Najafabad Branch, Islamic Azad University, Najafabad, Iran
| | - Elahe Masaeli
- Department of Cellular Biotechnology, Cell Science Research Center, Royan Institute for Biotechnology, ACECR, Isfahan, Iran
| | - Elahe Poorazizi
- Department of Biochemistry, Najafabad Branch, Islamic Azad University, Najafabad, Iran
| | - Mohammad Hossein Nasr-Esfahani
- Department of Cellular Biotechnology, Cell Science Research Center, Royan Institute for Biotechnology, ACECR, Isfahan, Iran
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7
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Park JK, Kim YS, Kang SU, Lee YS, Won HR, Kim CH. Nonthermal atmospheric plasma enhances myoblast differentiation by eliciting STAT3 phosphorylation. FASEB J 2018; 33:4097-4106. [PMID: 30548079 DOI: 10.1096/fj.201800695rr] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The use of nonthermal atmospheric plasma (NTP) in the biomedical field has recently expanded into cell death induction in cancer, infection prevention, inflammation treatment, and wound-healing enhancement. NTP has been demonstrated to enhance skin and muscle regeneration, but its effects on tissue regeneration, following deep tissue or muscle damage, remains underinvestigated. In this study, we determined the effects of NTP on muscle differentiation and the mechanisms of NTP's contribution to differentiation and regeneration. NTP treatment enhanced cell differentiation in primary normal human skeletal muscle myoblast cells and increased the relative expression of mRNA levels of MyoD which is one of the earliest markers of myogenic commitment, and myogenin, which are important transcription factors required for myogenic differentiation. Furthermore, NTP treatment induced increases in the levels of myosin heavy chain, a differentiated muscle-specific protein, and in myotube formation of myoblasts. We observed that signal transducer and activator of transcription 3 (STAT3) activation induced by NTP treatment affects the myogenic differentiation. In addition, STAT3 phosphorylation was also enhanced by NTP treatment in injured animal muscle. These findings indicate that NTP could enhance musculoskeletal differentiation by acting as an external stimulus for myoblast differentiation, suggesting its treatment potential in promoting regeneration of damaged muscle.-Park, J. K., Kim, Y. S., Kang, S. U., Lee, Y. S., Won, H.-R., Kim, C.-H. Nonthermal atmospheric plasma enhances myoblast differentiation by eliciting STAT3 phosphorylation.
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Affiliation(s)
- Ju Kyeong Park
- Laboratory Animal Resources Division, Toxicological Evaluation Research Department, National Institute of Food and Drug Safety Evaluation, Cheongju, South Korea
| | - Yeon Soo Kim
- Department of Otorhinolaryngology, Myunggok Medical Research Institute, Konyang University Hospital, Konyang University College of Medicine, Daejeon, South Korea
| | - Sung Un Kang
- Department of Otolaryngology, School of Medicine, Ajou University, Suwon, South Korea
| | - Yun Sang Lee
- Department of Otolaryngology, School of Medicine, Ajou University, Suwon, South Korea
| | - Ho-Ryun Won
- Department of Otolaryngology-Head and Neck Surgery, Chungnam National University Hospital, Daejeon, South Korea; and
| | - Chul-Ho Kim
- Department of Otolaryngology, School of Medicine, Ajou University, Suwon, South Korea.,Department of Molecular Science and Technology, Ajou University, Suwon, South Korea
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8
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Milner TD, Okhovat S, Clement WA, Wynne DM, Kunanandam T. A systematic review of simulated laryngotracheal reconstruction animal models. Laryngoscope 2018; 129:235-243. [PMID: 30325036 DOI: 10.1002/lary.27288] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/06/2018] [Indexed: 12/13/2022]
Abstract
OBJECTIVES Review of the literature to identify practical, high-fidelity, commercially available animal models for simulation training and surgical skills maintenance in laryngotracheal reconstruction (LTR). METHODS A systematic review of PubMed and Embase databases was conducted independently by two authors, according to Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. Search terms included "laryngotracheal reconstruction," "laryngotracheoplasty," "pig and larynx," "sheep and larynx," and "rabbit and larynx." Articles were then assessed, identifying model cost and availability, model validation, feasibility as a training tool, and verisimilitude to pediatric LTR. RESULTS In total, 79 articles were considered suitable for inclusion in the study, incorporating both in vitro and in vivo models. Models utilized included rabbit (n = 69), pig (n = 7), sheep (n = 1), and goat (n = 2). The rabbit model was similar in size to the neonate, but differences in laryngeal anatomy and cartilage texture made graft insertion difficult. The anatomy of the pig, sheep, and goat larynges more closely resembled the pediatric patient, allowing improved grafting, but corresponded more in size to that of an older child. Commercial availability of the pig and sheep was considered greatest, and was reflected in cost. None of the animal models identified in the literature have been validated as a simulation tool. CONCLUSIONS The rabbit, sheep and pig models seemed to demonstrate the greatest potential for use as advanced pediatric airway surgery simulation models, with the rabbit model being most utilized in the literature. However, as yet there have been no models formally validated as a simulation training tool. Laryngoscope, 129:235-243, 2019.
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Affiliation(s)
- Thomas D Milner
- Department of Otolaryngology-Head and Neck Surgery, Royal Hospital for Children, Glasgow, United Kingdom
| | - Saleh Okhovat
- Department of Otolaryngology-Head and Neck Surgery, Royal Hospital for Children, Glasgow, United Kingdom
| | - William A Clement
- Department of Otolaryngology-Head and Neck Surgery, Royal Hospital for Children, Glasgow, United Kingdom
| | - David M Wynne
- Department of Otolaryngology-Head and Neck Surgery, Royal Hospital for Children, Glasgow, United Kingdom
| | - Thushitha Kunanandam
- Department of Otolaryngology-Head and Neck Surgery, Royal Hospital for Children, Glasgow, United Kingdom
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9
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Zhang Y, Xu Y, Liu Y, Yin Z, Huo Y, Jiang G, Yang Y, Wang Z, Li Y, Lu F, Liu Y, Duan L, Zhou G. Porous decellularized trachea scaffold prepared by a laser micropore technique. J Mech Behav Biomed Mater 2018; 90:96-103. [PMID: 30359857 DOI: 10.1016/j.jmbbm.2018.10.006] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2018] [Revised: 10/02/2018] [Accepted: 10/02/2018] [Indexed: 11/19/2022]
Abstract
Rapid development of tissue engineering technology provides new methods for tracheal cartilage regeneration. However, the current lack of an ideal scaffold makes engineering of trachea cartilage tissue into a three-dimensional (3-D) tubular structure a great challenge. Although a decellularized trachea matrix (DTM) has become a recognized scaffold for trachea cartilage regeneration, it is difficult for cells to detach from or penetrate the matrix because of its non-porous structure. To tackle these problems, a laser micropore technique (LMT) was applied in the current study to enhance trachea sample porosity, and facilitate decellularizing treatment and cell ingrowth. Furthermore, after optimizing LMT and decellularizing treatment parameters, LMT-treated DTM (LDTM) retained its natural tubular structure with only minor extracellular matrix damage. Moreover, compared with DTM, the current study showed that LDTM significantly improved the adherence rate of cells with perfect cell biocompatibility. Moreover, the optimal implantation cell density for chondrogenesis with LDTM was determined to be 1 × 108 cells/ml. Collectively, the results suggest that the novel LDTM is an ideal scaffold for trachea tissue engineering.
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Affiliation(s)
- Yongjun Zhang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Tissue Engineering, Shanghai, PR China
| | - Yong Xu
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, PR China
| | - Yanqun Liu
- Research Institute of Plastic Surgery, Weifang Medical College, Weifang, Shandong, PR China
| | - Zongqi Yin
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Tissue Engineering, Shanghai, PR China
| | - Yingying Huo
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Tissue Engineering, Shanghai, PR China
| | - Gening Jiang
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, PR China
| | - Yong Yang
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, PR China
| | - Zongxin Wang
- Research Institute of Plastic Surgery, Weifang Medical College, Weifang, Shandong, PR China
| | - Yaqiang Li
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, PR China
| | - Fangjia Lu
- Department of Comparative Pathobiology, College of Veterinary Medicine, Purdue University, West Lafayette, IN 47907, USA
| | - Yi Liu
- Institute of Dermatology, Chinese Academy of Medical Sciences, Nanjing, PR China.
| | - Liang Duan
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, PR China.
| | - Guangdong Zhou
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Tissue Engineering, Shanghai, PR China; Research Institute of Plastic Surgery, Weifang Medical College, Weifang, Shandong, PR China.
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10
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Abstract
Purpose of Review There is no consensus on the best technology to be employed for tracheal replacement. One particularly promising approach is based upon tissue engineering and involves applying autologous cells to transplantable scaffolds. Here, we present the reported pre-clinical and clinical data exploring the various options for achieving such seeding. Recent Findings Various cell combinations, delivery strategies, and outcome measures are described. Mesenchymal stem cells (MSCs) are the most widely employed cell type in tracheal bioengineering. Airway epithelial cell luminal seeding is also widely employed, alone or in combination with other cell types. Combinations have thus far shown the greatest promise. Chondrocytes may improve mechanical outcomes in pre-clinical models, but have not been clinically tested. Rapid or pre-vascularization of scaffolds is an important consideration. Overall, there are few published objective measures of post-seeding cell viability, survival, or overall efficacy. Summary There is no clear consensus on the optimal cell-scaffold combination and mechanisms for seeding. Systematic in vivo work is required to assess differences between tracheal grafts seeded with combinations of clinically deliverable cell types using objective outcome measures, including those for functionality and host immune response. Electronic supplementary material The online version of this article (10.1007/s40778-017-0108-2) contains supplementary material, which is available to authorized users.
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11
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Xu Y, Li D, Yin Z, He A, Lin M, Jiang G, Song X, Hu X, Liu Y, Wang J, Wang X, Duan L, Zhou G. Tissue-engineered trachea regeneration using decellularized trachea matrix treated with laser micropore technique. Acta Biomater 2017; 58:113-121. [PMID: 28546133 DOI: 10.1016/j.actbio.2017.05.010] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2016] [Revised: 04/15/2017] [Accepted: 05/04/2017] [Indexed: 01/12/2023]
Abstract
Tissue-engineered trachea provides a promising approach for reconstruction of long segmental tracheal defects. However, a lack of ideal biodegradable scaffolds greatly restricts its clinical translation. Decellularized trachea matrix (DTM) is considered a proper scaffold for trachea cartilage regeneration owing to natural tubular structure, cartilage matrix components, and biodegradability. However, cell residual and low porosity of DTM easily result in immunogenicity and incomplete cartilage regeneration. To address these problems, a laser micropore technique (LMT) was applied in the current study to modify trachea sample porosity to facilitate decellular treatment and cell ingrowth. Decellularization processing demonstrated that cells in LMT treated samples were more easily removed compared with untreated native trachea. Furthermore, after optimizing the protocols of LMT and decellular treatments, the LMT-treated DTM (LDTM) could retain their original tubular shape with only mild extracellular matrix damage. After seeding with chondrocytes and culture in vitro for 8 weeks, the cell-LDTM constructs formed tubular cartilage with relatively homogenous cell distribution in both micropores and bilateral surfaces. In vivo results further confirmed that the constructs could form mature tubular cartilage with increased DNA and cartilage matrix contents, as well as enhanced mechanical strength, compared with native trachea. Collectively, these results indicate that LDTM is an ideal scaffold for tubular cartilage regeneration and, thus, provides a promising strategy for functional reconstruction of trachea cartilage. STATEMENT OF SIGNIFICANCE Lacking ideal biodegradable scaffolds greatly restricts development of tissue-engineered trachea. Decellularized trachea matrix (DTM) is considered a proper scaffold for trachea cartilage regeneration. However, cell residual and low porosity of DTM easily result in immunogenicity and incomplete cartilage regeneration. By laser micropore technique (LMT), the current study efficiently enhanced the porosity and decellularized efficacy of DTM. The LMT-treated DTM basically retained the original tubular shape with mild matrix damage. After chondrocyte seeding followed by in vitro culture and in vivo implantation, the constructs formed mature tubular cartilage with matrix content and mechanical strength similar to native trachea. The current study provides an ideal scaffold and a promising strategy for cartilage regeneration and functional reconstruction of trachea.
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Wiggenhauser PS, Schantz JT, Rotter N. Cartilage engineering in reconstructive surgery: auricular, nasal and tracheal engineering from a surgical perspective. Regen Med 2017; 12:303-314. [PMID: 28524733 DOI: 10.2217/rme-2016-0160] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
This review provides an update on cartilage tissue engineering with particular focus on the head and neck. It is aimed at scientists and clinicians who are interested in tissue engineering and its clinical applicability. Principal tissue engineering strategies are summarized in the first part of this review. In the second part, current clinical approaches to auricular, nasal and tracheal reconstruction are discussed from a surgical perspective. By this approach, the requirements for clinical applicability are outlined and new insight into relevant aims of research is given to accelerate the transfer from bench to bedside.
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Affiliation(s)
- Paul Severin Wiggenhauser
- sup>Department of Oto-Rhino-Laryngology, Head & Neck Surgery, Ulm University Medical Center, Frauensteige 12, Ulm DE 89075, Germany.,Department of Hand, Plastic & Aesthetic Surgery, Ludwig Maximilian University of Munich, Pettenkoferstrasse 8a, Munich DE 80336, Germany
| | - Jan Thorsten Schantz
- Department of Plastic Surgery & Hand Surgery, München rechts der Isar, Technical University of Munich, Ismaninger Str. 22, Munich DE 81675, Germany
| | - Nicole Rotter
- Department of Hand, Plastic & Aesthetic Surgery, Ludwig Maximilian University of Munich, Pettenkoferstrasse 8a, Munich DE 80336, Germany
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14
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15
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Masaeli E, Karamali F, Loghmani S, Eslaminejad MB, Nasr-Esfahani MH. Bio-engineered electrospun nanofibrous membranes using cartilage extracellular matrix particles. J Mater Chem B 2017; 5:765-776. [DOI: 10.1039/c6tb02015a] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Functionalized nanofibrous scaffolds with decellularized ECM (DECM) particles can mimic the natural motifs of cartilage ECMs and enhance chondro-inductivity for tissue engineering applications.
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Affiliation(s)
- Elahe Masaeli
- Department of Cellular Biotechnology
- Cell Science Research Center
- Royan Institute for Biotechnology
- ACECR
- Isfahan
| | - Fereshte Karamali
- Department of Cellular Biotechnology
- Cell Science Research Center
- Royan Institute for Biotechnology
- ACECR
- Isfahan
| | - Shahriar Loghmani
- Department of Cellular Biotechnology
- Cell Science Research Center
- Royan Institute for Biotechnology
- ACECR
- Isfahan
| | - Mohamadreza Baghaban Eslaminejad
- Department of Stem Cells and Developmental Biology
- Cell Science Research Center
- Royan Institute for Stem Cell Biology and Technology
- ACECR
- Tehran
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16
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Jung SY, Lee SJ, Kim HY, Park HS, Wang Z, Kim HJ, Yoo JJ, Chung SM, Kim HS. 3D printed polyurethane prosthesis for partial tracheal reconstruction: a pilot animal study. Biofabrication 2016; 8:045015. [PMID: 27788126 DOI: 10.1088/1758-5090/8/4/045015] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
A ready-made, acellular patch-type prosthesis is desirable in repairing partial tracheal defects in the clinical setting. However, many of these prostheses may not show proper biological integration and biomechanical function when they are transplanted. In this study, we developed a novel 3D printed polyurethane (PU) tracheal scaffold with micro-scale architecture to allow host tissue infiltration and adequate biomechanical properties to withstand physiological tracheal condition. A half-pipe shaped PU scaffold (1.8 cm of height, 0.18 cm thickness, and 2 cm of diameter) was fabricated by 3D printing of PU 200 μm PU beam. The 3D printed tracheal scaffolds consisted of a porous inner microstructure with 200 × 200 × 200 μm3 sized pores and a non-porous outer layer. The mechanical properties of the scaffolds were 3.21 ± 1.02 MPa of ultimate tensile strength, 2.81 ± 0.58 MPa of Young's modulus, and 725% ± 41% of elongation at break. To examine the function of the 3D printed tracheal scaffolds in vivo, the scaffolds were implanted into 1.0 × 0.7 cm2 sized anterior tracheal defect of rabbits. After implantation, bronchoscopic examinations revealed that the implanted tracheal scaffolds were patent for a 16 week-period. Histologic findings showed that re-epithelialization after 4 weeks of implantation and ciliated respiratory epithelium with ciliary beating after 8 weeks of implantation were observed at the lumen of the implanted tracheal scaffolds. The ingrowth of the connective tissue into the scaffolds was observed at 4 weeks after implantation. The biomechanical properties of the implanted tracheal scaffolds were continually maintained for 16 week-period. The results demonstrated that 3D printed tracheal scaffold could provide an alternative solution as a therapeutic treatment for partial tracheal defects.
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Affiliation(s)
- Soo Yeon Jung
- Department of Otorhinolaryngology-Head and Neck Surgery, College of Medicine, Ewha Womans University, Seoul 07985, Korea
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Aydogmus U, Topkara A, Akbulut M, Ozkan A, Turk F, Sahin B, Yuncu G. Effectiveness of Palatal Mucosa Graft in Surgical Treatment of Sub-Glottic Stenosis. Clin Exp Otorhinolaryngol 2016; 9:358-365. [PMID: 27416739 PMCID: PMC5115148 DOI: 10.21053/ceo.2015.01508] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2015] [Revised: 12/08/2015] [Accepted: 01/12/2016] [Indexed: 12/20/2022] Open
Abstract
OBJECTIVES Mucosal free grafts may be successfully applied in many surgical interventions. This study aims at investigating the feasibility of palatal mucosa graft in sub-glottic field in an animal model. METHODS This randomized prospective controlled study was conducted with an animal model. Sub-glottic inflammation was created in 15 adult rabbits in each group and sub-glottic stenosis surgery was applied thereafter. The rabbits in group 1 (control group) underwent segmental resection, partial cricoidectomy, and trachea-thyroid cartilage anastomosis; the rabbits in group 2 underwent segmental resection, cricoplasty, and crico-tracheal anastomosis using free buccal mucosa graft; and the rabbits in group 3 underwent segmental resection, cricoplasty, and crico-tracheal anastomosis using free palatal mucosa graft. Re-stenosis was evaluated after 42 days. RESULTS The percentages of stenosis were 27%±20%, 40%±20%, and 34%±23% for group 1, 2, and 3, respectively and the difference was not statistically significant (P=0.29). Intensive and tight fibrosis was observed in 2 rabbits (13%) in group 1, in 5 rabbits (33%) in group 2, and in 3 rabbits (20%) in group 3. There was not a statistically significant difference between groups (P=0.41). Excessive inflammation was observed in 3 rabbits (20%) in group 1, in 7 rabbits (47%) in group 2, and 3 rabbits (20%) in group 3. There was no a statistically significant difference between groups although inflammation rate was higher in the rabbits which underwent buccal mucosa graft (P=0.18). CONCLUSION The surgical treatments applied with free mucosa graft reduced anastomosis tension through enabling anastomosis to the distal of cricoid instead of thyroid cartilage. Free palatal mucosa grafts may be used in sub-glottic field, one of the most challenging fields of trachea surgery, due to ease of application and rapid vascularization.
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Affiliation(s)
- Umit Aydogmus
- Department of Thoracic Surgery, Reconstructive and Aesthetic Surgery, Medical Faculty of Pamukkale University, Denizli, Turkey
| | - Adem Topkara
- Department of Plastic, Reconstructive and Aesthetic Surgery, Medical Faculty of Pamukkale University, Denizli, Turkey
| | - Metin Akbulut
- Department of Pathology, Medical Faculty of Pamukkale University, Denizli, Turkey
| | - Adem Ozkan
- Department of Plastic, Reconstructive and Aesthetic Surgery, Medical Faculty of Pamukkale University, Denizli, Turkey
| | - Figen Turk
- Department of Thoracic Surgery, Reconstructive and Aesthetic Surgery, Medical Faculty of Pamukkale University, Denizli, Turkey
| | - Barbaros Sahin
- Department of Experimental Research Laboratory, Medical Faculty of Pamukkale University, Denizli, Turkey
| | - Gokhan Yuncu
- Department of Thoracic Surgery, Liv Hospital, Istanbul, Turkey
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Novel Therapeutic Effects of Non-thermal atmospheric pressure plasma for Muscle Regeneration and Differentiation. Sci Rep 2016; 6:28829. [PMID: 27349181 PMCID: PMC4923893 DOI: 10.1038/srep28829] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2016] [Accepted: 06/06/2016] [Indexed: 01/07/2023] Open
Abstract
Skeletal muscle can repair muscle tissue damage, but significant loss of muscle tissue or its long-lasting chronic degeneration makes injured skeletal muscle tissue difficult to restore. It has been demonstrated that non-thermal atmospheric pressure plasma (NTP) can be used in many biological areas including regenerative medicine. Therefore, we determined whether NTP, as a non-contact biological external stimulator that generates biological catalyzers, can induce regeneration of injured muscle without biomaterials. Treatment with NTP in the defected muscle of a Sprague Dawley (SD) rat increased the number of proliferating muscle cells 7 days after plasma treatment (dapt) and rapidly induced formation of muscle tissue and muscle cell differentiation at 14 dapt. In addition, in vitro experiments also showed that NTP could induce muscle cell proliferation and differentiation of human muscle cells. Taken together, our results demonstrated that NTP promotes restoration of muscle defects through control of cell proliferation and differentiation without biological or structural supporters, suggesting that NTP has the potential for use in muscle tissue engineering and regenerative therapies.
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Rowland CR, Colucci LA, Guilak F. Fabrication of anatomically-shaped cartilage constructs using decellularized cartilage-derived matrix scaffolds. Biomaterials 2016; 91:57-72. [PMID: 26999455 DOI: 10.1016/j.biomaterials.2016.03.012] [Citation(s) in RCA: 92] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2015] [Revised: 03/02/2016] [Accepted: 03/06/2016] [Indexed: 12/29/2022]
Abstract
The native extracellular matrix of cartilage contains entrapped growth factors as well as tissue-specific epitopes for cell-matrix interactions, which make it a potentially attractive biomaterial for cartilage tissue engineering. A limitation to this approach is that the native cartilage extracellular matrix possesses a pore size of only a few nanometers, which inhibits cellular infiltration. Efforts to increase the pore size of cartilage-derived matrix (CDM) scaffolds dramatically attenuate their mechanical properties, which makes them susceptible to cell-mediated contraction. In previous studies, we have demonstrated that collagen crosslinking techniques are capable of preventing cell-mediated contraction in CDM disks. In the current study, we investigated the effects of CDM concentration and pore architecture on the ability of CDM scaffolds to resist cell-mediated contraction. Increasing CDM concentration significantly increased scaffold mechanical properties, which played an important role in preventing contraction, and only the highest CDM concentration (11% w/w) was able to retain the original scaffold dimensions. However, the increase in CDM concentration led to a concomitant decrease in porosity and pore size. Generating a temperature gradient during the freezing process resulted in unidirectional freezing, which aligned the formation of ice crystals during the freezing process and in turn produced aligned pores in CDM scaffolds. These aligned pores increased the pore size of CDM scaffolds at all CDM concentrations, and greatly facilitated infiltration by mesenchymal stem cells (MSCs). These methods were used to fabricate of anatomically-relevant CDM hemispheres. CDM hemispheres with aligned pores supported uniform MSC infiltration and matrix deposition. Furthermore, these CDM hemispheres retained their original architecture and did not contract, warp, curl, or splay throughout the entire 28-day culture period. These findings demonstrate that given the appropriate fabrication parameters, CDM scaffolds are capable of maintaining complex structures that support MSC chondrogenesis.
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Affiliation(s)
- Christopher R Rowland
- Department of Orthopaedic Surgery, Washington University, St. Louis, MO, 63110, United States; Department of Developmental Biology, Washington University, St. Louis, MO, 63110, United States; Department of Biomedical Engineering, Washington University, St. Louis, MO, 63110, United States; Shriners Hospitals for Children - St. Louis Hospital, 3210 McKinley Research Building, St. Louis, MO, 63110, United States
| | - Lina A Colucci
- Department of Orthopaedic Surgery, Washington University, St. Louis, MO, 63110, United States; Department of Developmental Biology, Washington University, St. Louis, MO, 63110, United States; Department of Biomedical Engineering, Washington University, St. Louis, MO, 63110, United States; Shriners Hospitals for Children - St. Louis Hospital, 3210 McKinley Research Building, St. Louis, MO, 63110, United States
| | - Farshid Guilak
- Department of Orthopaedic Surgery, Washington University, St. Louis, MO, 63110, United States; Department of Developmental Biology, Washington University, St. Louis, MO, 63110, United States; Department of Biomedical Engineering, Washington University, St. Louis, MO, 63110, United States; Shriners Hospitals for Children - St. Louis Hospital, 3210 McKinley Research Building, St. Louis, MO, 63110, United States.
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Sridharan B, Sharma B, Detamore MS. A Road Map to Commercialization of Cartilage Therapy in the United States of America. TISSUE ENGINEERING PART B-REVIEWS 2015; 22:15-33. [PMID: 26192161 DOI: 10.1089/ten.teb.2015.0147] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Despite numerous efforts in cartilage regeneration, few products see the light of clinical translation as the commercialization process is opaque, financially demanding, and requires collaboration with people of varied skill sets. The aim of this review is to introduce, to an academic audience, the different paradigms involved in the commercialization of cartilage regeneration technology, elucidate the different hurdles associated with the use of cells and materials in developing new technologies, discuss potential commercialization strategies, and inform the reader about the current trends observed in both the clinical and laboratory setting for establishing clinical trials. Although there are review articles on articular cartilage tissue engineering, independent reports provided by the Food and Drug Administration, and separate review articles on animal models, this is the first review that encompasses all of these facets and is presented in a format favorable to the academic investigator interested in clinical translation from bench to bedside.
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Affiliation(s)
| | - Blanka Sharma
- 2 Department of Biomedical Engineering, University of Florida , Gainesville, Florida
| | - Michael S Detamore
- 1 Bioengineering Program, University of Kansas , Lawrence, Kansas.,3 Department of Chemical and Petroleum Engineering, University of Kansas , Lawrence, Kansas
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The rapid manufacture of uniform composite multicellular-biomaterial micropellets, their assembly into macroscopic organized tissues, and potential applications in cartilage tissue engineering. PLoS One 2015; 10:e0122250. [PMID: 26020956 PMCID: PMC4447443 DOI: 10.1371/journal.pone.0122250] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2014] [Accepted: 02/18/2015] [Indexed: 11/18/2022] Open
Abstract
We and others have published on the rapid manufacture of micropellet tissues, typically formed from 100–500 cells each. The micropellet geometry enhances cellular biological properties, and in many cases the micropellets can subsequently be utilized as building blocks to assemble complex macrotissues. Generally, micropellets are formed from cells alone, however when replicating matrix-rich tissues such as cartilage it would be ideal if matrix or biomaterials supplements could be incorporated directly into the micropellet during the manufacturing process. Herein we describe a method to efficiently incorporate donor cartilage matrix into tissue engineered cartilage micropellets. We lyophilized bovine cartilage matrix, and then shattered it into microscopic pieces having average dimensions < 10 μm diameter; we termed this microscopic donor matrix “cartilage dust (CD)”. Using a microwell platform, we show that ~0.83 μg CD can be rapidly and efficiently incorporated into single multicellular aggregates formed from 180 bone marrow mesenchymal stem/stromal cells (MSC) each. The microwell platform enabled the rapid manufacture of thousands of replica composite micropellets, with each micropellet having a material/CD core and a cellular surface. This micropellet organization enabled the rapid bulking up of the micropellet core matrix content, and left an adhesive cellular outer surface. This morphological organization enabled the ready assembly of the composite micropellets into macroscopic tissues. Generically, this is a versatile method that enables the rapid and uniform integration of biomaterials into multicellular micropellets that can then be used as tissue building blocks. In this study, the addition of CD resulted in an approximate 8-fold volume increase in the micropellets, with the donor matrix functioning to contribute to an increase in total cartilage matrix content. Composite micropellets were readily assembled into macroscopic cartilage tissues; the incorporation of CD enhanced tissue size and matrix content, but did not enhance chondrogenic gene expression.
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Kim YS, Shin YS, Park DY, Choi JW, Park JK, Kim DH, Kim CH, Park SA. The Application of Three-Dimensional Printing in Animal Model of Augmentation Rhinoplasty. Ann Biomed Eng 2015; 43:2153-62. [DOI: 10.1007/s10439-015-1261-3] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2014] [Accepted: 01/17/2015] [Indexed: 01/01/2023]
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Kim YS, Park DY, Cho YH, Chang JW, Choi JW, Park JK, Min BH, Shin YS, Kim CH. Cultured chondrocyte and porcine cartilage-derived substance (PCS) construct as a possible dorsal augmentation material in rhinoplasty: A preliminary animal study. J Plast Reconstr Aesthet Surg 2015; 68:659-66. [PMID: 25735721 DOI: 10.1016/j.bjps.2014.12.017] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2014] [Revised: 10/20/2014] [Accepted: 12/13/2014] [Indexed: 01/16/2023]
Abstract
As there is no single ideal material for dorsal augmentation in rhinoplasty, there has been a continuing need for the development of improved materials. Therefore, we aimed to evaluate the outcome of using a novel tissue-engineered construct composed of autologous chondrocytes cultured with a porcine cartilage-derived substance (PCS) scaffold as an augmentation material in rhinoplasty. A scaffold derived from decellularized and powdered porcine articular cartilage was prepared. The rabbit articular cartilage was used as the source of homologous chondrocytes, which were expanded and cultured with the PCS scaffold for 7 weeks. The chondrocyte-PCS constructs were then surgically implanted on the nasal dorsum of six rabbits. Four and eight weeks after implantation, the gross morphology, radiologic images, and histologic features of the site of implant were analyzed. The rabbits showed no signs of postoperative inflammation and infection. The degree of dorsal augmentation was maintained during the 8-week postoperative observation period. Postoperative histologic examinations showed chondrocyte proliferation without an inflammatory response. However, neo-cartilage formation from the constructs was not confirmed. The biocompatibility and structural features of tissue-engineered chondrocyte-PCS constructs indicate their potential as candidate dorsal augmentation material for use in rhinoplasty.
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Affiliation(s)
- Yoo Suk Kim
- Department of Otolaryngology, Ajou University School of Medicine, Suwon, South Korea
| | - Do-Yang Park
- Department of Otolaryngology, Ajou University School of Medicine, Suwon, South Korea
| | | | - Jae Won Chang
- Department of Otolaryngology, Ajou University School of Medicine, Suwon, South Korea
| | - Jae Won Choi
- Department of Otolaryngology, Ajou University School of Medicine, Suwon, South Korea
| | - Joo Kyung Park
- Department of Otolaryngology, Ajou University School of Medicine, Suwon, South Korea
| | - Byung Hyun Min
- Department of Orthopedics, Ajou University School of Medicine, Suwon, South Korea
| | - Yoo Seob Shin
- Department of Otolaryngology, Ajou University School of Medicine, Suwon, South Korea.
| | - Chul Ho Kim
- Department of Otolaryngology, Ajou University School of Medicine, Suwon, South Korea.
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Chang JW, Park SA, Park JK, Choi JW, Kim YS, Shin YS, Kim CH. Tissue-engineered tracheal reconstruction using three-dimensionally printed artificial tracheal graft: preliminary report. Artif Organs 2014; 38:E95-E105. [PMID: 24750044 DOI: 10.1111/aor.12310] [Citation(s) in RCA: 91] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Three-dimensional printing has come into the spotlight in the realm of tissue engineering. We intended to evaluate the plausibility of 3D-printed (3DP) scaffold coated with mesenchymal stem cells (MSCs) seeded in fibrin for the repair of partial tracheal defects. MSCs from rabbit bone marrow were expanded and cultured. A half-pipe-shaped 3DP polycaprolactone scaffold was coated with the MSCs seeded in fibrin. The half-pipe tracheal graft was implanted on a 10 × 10-mm artificial tracheal defect in four rabbits. Four and eight weeks after the operation, the reconstructed sites were evaluated bronchoscopically, radiologically, histologically, and functionally. None of the four rabbits showed any sign of respiratory distress. Endoscopic examination and computed tomography showed successful reconstruction of trachea without any collapse or blockage. The replaced tracheas were completely covered with regenerated respiratory mucosa. Histologic analysis showed that the implanted 3DP tracheal grafts were successfully integrated with the adjacent trachea without disruption or granulation tissue formation. Neo-cartilage formation inside the implanted graft was sufficient to maintain the patency of the reconstructed trachea. Scanning electron microscope examination confirmed the regeneration of the cilia, and beating frequency of regenerated cilia was not different from those of the normal adjacent mucosa. The shape and function of reconstructed trachea using 3DP scaffold coated with MSCs seeded in fibrin were restored successfully without any graft rejection.
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Affiliation(s)
- Jae Won Chang
- Department of Otolaryngology, School of Medicine, Ajou University, Suwon, Korea
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Tracheal reconstruction using chondrocytes seeded on a poly(l-lactic-co-glycolic acid)-fibrin/hyaluronan. J Biomed Mater Res A 2014; 102:4142-50. [DOI: 10.1002/jbm.a.35091] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2013] [Revised: 01/14/2014] [Accepted: 01/16/2014] [Indexed: 12/18/2022]
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