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Sparks DS, Savi FM, Dlaska CE, Saifzadeh S, Brierly G, Ren E, Cipitria A, Reichert JC, Wille ML, Schuetz MA, Ward N, Wagels M, Hutmacher DW. Convergence of scaffold-guided bone regeneration principles and microvascular tissue transfer surgery. SCIENCE ADVANCES 2023; 9:eadd6071. [PMID: 37146134 PMCID: PMC10162672 DOI: 10.1126/sciadv.add6071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
A preclinical evaluation using a regenerative medicine methodology comprising an additively manufactured medical-grade ε-polycaprolactone β-tricalcium phosphate (mPCL-TCP) scaffold with a corticoperiosteal flap was undertaken in eight sheep with a tibial critical-size segmental bone defect (9.5 cm3, M size) using the regenerative matching axial vascularization (RMAV) approach. Biomechanical, radiological, histological, and immunohistochemical analysis confirmed functional bone regeneration comparable to a clinical gold standard control (autologous bone graft) and was superior to a scaffold control group (mPCL-TCP only). Affirmative bone regeneration results from a pilot study using an XL size defect volume (19 cm3) subsequently supported clinical translation. A 27-year-old adult male underwent reconstruction of a 36-cm near-total intercalary tibial defect secondary to osteomyelitis using the RMAV approach. Robust bone regeneration led to complete independent weight bearing within 24 months. This article demonstrates the widely advocated and seldomly accomplished concept of "bench-to-bedside" research and has weighty implications for reconstructive surgery and regenerative medicine more generally.
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Affiliation(s)
- David S Sparks
- Centre for Biomedical Technologies, School of Mechanical, Medical, and Process Engineering, Faculty of Engineering, Queensland University of Technology, Brisbane, QLD, Australia
- Department of Plastic and Reconstructive Surgery, Princess Alexandra Hospital, Woolloongabba, QLD, Australia
- Southside Clinical Division, School of Medicine, University of Queensland, Woolloongabba, QLD, Australia
| | - Flavia M Savi
- Centre for Biomedical Technologies, School of Mechanical, Medical, and Process Engineering, Faculty of Engineering, Queensland University of Technology, Brisbane, QLD, Australia
- ARC Training Centre for Multiscale 3D Imaging, Modelling, and Manufacturing, Queensland University of Technology, Brisbane, QLD, Australia
| | - Constantin E Dlaska
- Centre for Biomedical Technologies, School of Mechanical, Medical, and Process Engineering, Faculty of Engineering, Queensland University of Technology, Brisbane, QLD, Australia
| | - Siamak Saifzadeh
- Centre for Biomedical Technologies, School of Mechanical, Medical, and Process Engineering, Faculty of Engineering, Queensland University of Technology, Brisbane, QLD, Australia
- ARC Training Centre for Multiscale 3D Imaging, Modelling, and Manufacturing, Queensland University of Technology, Brisbane, QLD, Australia
- Medical Engineering Research Facility, Queensland University of Technology, Chermside, QLD, Australia
| | - Gary Brierly
- Centre for Biomedical Technologies, School of Mechanical, Medical, and Process Engineering, Faculty of Engineering, Queensland University of Technology, Brisbane, QLD, Australia
| | - Edward Ren
- Centre for Biomedical Technologies, School of Mechanical, Medical, and Process Engineering, Faculty of Engineering, Queensland University of Technology, Brisbane, QLD, Australia
| | - Amaia Cipitria
- Department of Biomaterials, Max Planck Institute of Colloids and Interfaces, Potsdam, Germany
- Biodonostia Health Research Institute, San Sebastian, Spain
- IKERBASQUE, Basque Foundation for Science, Bilbao, Spain
| | - Johannes C Reichert
- Department of Orthopaedics and Orthopaedic Surgery, University Medicine Greifswald, Ferdinand-Sauerbruch-Straße, Greifswald, Germany
| | - Marie-Luise Wille
- Centre for Biomedical Technologies, School of Mechanical, Medical, and Process Engineering, Faculty of Engineering, Queensland University of Technology, Brisbane, QLD, Australia
- ARC Training Centre for Multiscale 3D Imaging, Modelling, and Manufacturing, Queensland University of Technology, Brisbane, QLD, Australia
| | - Michael A Schuetz
- Centre for Biomedical Technologies, School of Mechanical, Medical, and Process Engineering, Faculty of Engineering, Queensland University of Technology, Brisbane, QLD, Australia
- ARC Training Centre for Multiscale 3D Imaging, Modelling, and Manufacturing, Queensland University of Technology, Brisbane, QLD, Australia
- Jamieson Trauma Institute, Royal Brisbane Hospital, Herston, QLD, Australia
| | - Nicola Ward
- Department of Orthopaedics, Princess Alexandra Hospital, Woolloongabba, QLD, Australia
| | - Michael Wagels
- Department of Plastic and Reconstructive Surgery, Princess Alexandra Hospital, Woolloongabba, QLD, Australia
- Southside Clinical Division, School of Medicine, University of Queensland, Woolloongabba, QLD, Australia
- Australian Centre for Complex Integrated Surgical Solutions (ACCISS), Princess Alexandra Hospital, Woolloongabba, QLD, Australia
| | - Dietmar W Hutmacher
- Centre for Biomedical Technologies, School of Mechanical, Medical, and Process Engineering, Faculty of Engineering, Queensland University of Technology, Brisbane, QLD, Australia
- ARC Training Centre for Multiscale 3D Imaging, Modelling, and Manufacturing, Queensland University of Technology, Brisbane, QLD, Australia
- ARC Training Centre for Additive Biomanufacturing, Queensland University of Technology, Kelvin Grove, QLD, Australia
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Moreno-Jiménez I, Cipitria A, Sánchez-Herrero A, van Tol AF, Roschger A, Lahr CA, McGovern JA, Hutmacher DW, Fratzl P. Human and mouse bones physiologically integrate in a humanized mouse model while maintaining species-specific ultrastructure. SCIENCE ADVANCES 2020; 6:6/44/eabb9265. [PMID: 33115741 PMCID: PMC7608795 DOI: 10.1126/sciadv.abb9265] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Accepted: 08/31/2020] [Indexed: 05/07/2023]
Abstract
Humanized mouse models are increasingly studied to recapitulate human-like bone physiology. While human and mouse bone architectures differ in multiple scales, the extent to which chimeric human-mouse bone physiologically interacts and structurally integrates remains unknown. Here, we identify that humanized bone is formed by a mosaic of human and mouse collagen, structurally integrated within the same bone organ, as shown by immunohistochemistry. Combining this with materials science techniques, we investigate the extracellular matrix of specific human and mouse collagen regions. We show that human-like osteocyte lacunar-canalicular network is retained within human collagen regions and is distinct to that of mouse tissue. This multiscale analysis shows that human and mouse tissues physiologically integrate into a single, functional bone tissue while maintaining their species-specific ultrastructural differences. These results offer an original method to validate and advance tissue-engineered human-like bone in chimeric animal models, which grow to be eloquent tools in biomedical research.
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Affiliation(s)
- I Moreno-Jiménez
- Max Planck Institute of Colloids and Interfaces, Department of Biomaterials, Potsdam, Germany
- Institute of Health Biomedical Innovation (IHBI), Queensland University of Technology, Brisbane, Australia
| | - A Cipitria
- Max Planck Institute of Colloids and Interfaces, Department of Biomaterials, Potsdam, Germany
| | - A Sánchez-Herrero
- Institute of Health Biomedical Innovation (IHBI), Queensland University of Technology, Brisbane, Australia
| | - A F van Tol
- Max Planck Institute of Colloids and Interfaces, Department of Biomaterials, Potsdam, Germany
| | - A Roschger
- Max Planck Institute of Colloids and Interfaces, Department of Biomaterials, Potsdam, Germany
| | - C A Lahr
- Institute of Health Biomedical Innovation (IHBI), Queensland University of Technology, Brisbane, Australia
| | - J A McGovern
- Institute of Health Biomedical Innovation (IHBI), Queensland University of Technology, Brisbane, Australia
| | - D W Hutmacher
- Max Planck Institute of Colloids and Interfaces, Department of Biomaterials, Potsdam, Germany.
- Institute of Health Biomedical Innovation (IHBI), Queensland University of Technology, Brisbane, Australia
| | - P Fratzl
- Max Planck Institute of Colloids and Interfaces, Department of Biomaterials, Potsdam, Germany.
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Oliver JD, Jia S, Halpern LR, Graham EM, Turner EC, Colombo JS, Grainger DW, D'Souza RN. Innovative Molecular and Cellular Therapeutics in Cleft Palate Tissue Engineering. TISSUE ENGINEERING PART B-REVIEWS 2020; 27:215-237. [PMID: 32873216 DOI: 10.1089/ten.teb.2020.0181] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Clefts of the lip and/or palate are the most prevalent orofacial birth defects occurring in about 1:700 live human births worldwide. Early postnatal surgical interventions are extensive and staged to bring about optimal growth and fusion of palatal shelves. Severe cleft defects pose a challenge to correct with surgery alone, resulting in complications and sequelae requiring life-long, multidisciplinary care. Advances made in materials science innovation, including scaffold-based delivery systems for precision tissue engineering, now offer new avenues for stimulating bone formation at the site of surgical correction for palatal clefts. In this study, we review the present scientific literature on key developmental events that can go awry in palate development and the common surgical practices and challenges faced in correcting cleft defects. How key osteoinductive pathways implicated in palatogenesis inform the design and optimization of constructs for cleft palate correction is discussed within the context of translation to humans. Finally, we highlight new osteogenic agents and innovative delivery systems with the potential to be adopted in engineering-based therapeutic approaches for the correction of palatal defects. Impact statement Tissue-engineered scaffolds supplemented with osteogenic growth factors have attractive, largely unexplored possibilities to modulate molecular signaling networks relevant to driving palatogenesis in the context of congenital anomalies (e.g., cleft palate). Constructs that address this need may obviate current use of autologous bone grafts, thereby avoiding donor-site morbidity and other regenerative challenges in patients afflicted with palatal clefts. Combinations of biomaterials and drug delivery of diverse regenerative cues and biologics are currently transforming strategies exploited by engineers, scientists, and clinicians for palatal cleft repair.
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Affiliation(s)
- Jeremie D Oliver
- School of Dentistry, University of Utah Health Sciences, Salt Lake City, Utah, USA.,Department of Biomedical Engineering, University of Utah, Salt Lake City, Utah, USA
| | - Shihai Jia
- School of Dentistry, University of Utah Health Sciences, Salt Lake City, Utah, USA
| | - Leslie R Halpern
- School of Dentistry, University of Utah Health Sciences, Salt Lake City, Utah, USA
| | - Emily M Graham
- School of Medicine, University of Utah Health Sciences, Salt Lake City, Utah, USA
| | - Emma C Turner
- University of Western Australia Dental School, Perth, Western Australia
| | - John S Colombo
- University of Las Vegas at Nevada School of Dental Medicine, Las Vegas, Nevada, USA
| | - David W Grainger
- Department of Biomedical Engineering, University of Utah, Salt Lake City, Utah, USA.,Department of Pharmaceutics and Pharmaceutical Chemistry, University of Utah Health Sciences, Salt Lake City, Utah, USA
| | - Rena N D'Souza
- School of Dentistry, University of Utah Health Sciences, Salt Lake City, Utah, USA.,Department of Biomedical Engineering, University of Utah, Salt Lake City, Utah, USA.,School of Medicine, University of Utah Health Sciences, Salt Lake City, Utah, USA
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