1
|
Meng H, Liu X, Liu R, Zheng Y, Hou A, Liu S, He W, Wang Y, Wang A, Guo Q, Peng J. Decellularized laser micro-patterned osteochondral implants exhibit zonal recellularization and self-fixing for osteochondral regeneration in a goat model. J Orthop Translat 2024; 46:18-32. [PMID: 38774916 PMCID: PMC11106784 DOI: 10.1016/j.jot.2024.04.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2024] [Revised: 04/01/2024] [Accepted: 04/28/2024] [Indexed: 05/24/2024] Open
Abstract
Background Osteochondral regeneration has long been recognized as a complex and challenging project in the field of tissue engineering. In particular, reconstructing the osteochondral interface is crucial for determining the effectiveness of the repair. Although several artificial layered or gradient scaffolds have been developed recently to simulate the natural interface, the functions of this unique structure have still not been fully replicated. In this paper, we utilized laser micro-patterning technology (LMPT) to modify the natural osteochondral "plugs" for use as grafts and aimed to directly apply the functional interface unit to repair osteochondral defects in a goat model. Methods For in vitro evaluations, the optimal combination of LMPT parameters was confirmed through mechanical testing, finite element analysis, and comparing decellularization efficiency. The structural and biological properties of the laser micro-patterned osteochondral implants (LMP-OI) were verified by measuring the permeability of the interface and assessing the recellularization processes. In the goat model for osteochondral regeneration, a conical frustum-shaped defect was specifically created in the weight-bearing area of femoral condyles using a customized trephine with a variable diameter. This unreported defect shape enabled the implant to properly self-fix as expected. Results The micro-patterning with the suitable pore density and morphology increased the permeability of the LMP-OIs, accelerated decellularization, maintained mechanical stability, and provided two relative independent microenvironments for subsequent recellularization. The LMP-OIs with goat's autologous bone marrow stromal cells in the cartilage layer have securely integrated into the osteochondral defects. At 6 and 12 months after implantation, both imaging and histological assessments showed a significant improvement in the healing of the cartilage and subchondral bone. Conclusion With the natural interface unit and zonal recellularization, the LMP-OI is an ideal scaffold to repair osteochondral defects especially in large animals. The translational potential of this article These findings suggest that such a modified xenogeneic osteochondral implant could potentially be explored in clinical translation for treatment of osteochondral injuries. Furthermore, trimming a conical frustum shape to the defect region, especially for large-sized defects, may be an effective way to achieve self-fixing for the implant.
Collapse
Affiliation(s)
- Haoye Meng
- School of Material Science and Engineering, University of Science and Technology Beijing, Beijing, China
- Institute of Orthopaedics, The First Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Xuejian Liu
- Institute of Orthopaedics, The First Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Ronghui Liu
- Medical Innovation & Research Division, Chinese PLA General Hospital, Beijing, China
| | - Yudong Zheng
- School of Material Science and Engineering, University of Science and Technology Beijing, Beijing, China
| | - Angyang Hou
- Institute of Orthopaedics, The First Medical Center, Chinese PLA General Hospital, Beijing, China
- Beijing Key Lab of Regenerative Medicine in Orthopaedics, Beijing, China
| | - Shuyun Liu
- Institute of Orthopaedics, The First Medical Center, Chinese PLA General Hospital, Beijing, China
- Beijing Key Lab of Regenerative Medicine in Orthopaedics, Beijing, China
| | - Wei He
- School of Material Science and Engineering, University of Science and Technology Beijing, Beijing, China
| | - Yu Wang
- Institute of Orthopaedics, The First Medical Center, Chinese PLA General Hospital, Beijing, China
- Beijing Key Lab of Regenerative Medicine in Orthopaedics, Beijing, China
| | - Aiyuan Wang
- Institute of Orthopaedics, The First Medical Center, Chinese PLA General Hospital, Beijing, China
- Beijing Key Lab of Regenerative Medicine in Orthopaedics, Beijing, China
| | - Quanyi Guo
- Institute of Orthopaedics, The First Medical Center, Chinese PLA General Hospital, Beijing, China
- Beijing Key Lab of Regenerative Medicine in Orthopaedics, Beijing, China
| | - Jiang Peng
- Institute of Orthopaedics, The First Medical Center, Chinese PLA General Hospital, Beijing, China
- Beijing Key Lab of Regenerative Medicine in Orthopaedics, Beijing, China
| |
Collapse
|
2
|
Tampieri A, Kon E, Sandri M, Campodoni E, Dapporto M, Sprio S. Marine-Inspired Approaches as a Smart Tool to Face Osteochondral Regeneration. Mar Drugs 2023; 21:md21040212. [PMID: 37103351 PMCID: PMC10145639 DOI: 10.3390/md21040212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 03/23/2023] [Accepted: 03/24/2023] [Indexed: 03/30/2023] Open
Abstract
The degeneration of osteochondral tissue represents one of the major causes of disability in modern society and it is expected to fuel the demand for new solutions to repair and regenerate the damaged articular joints. In particular, osteoarthritis (OA) is the most common complication in articular diseases and a leading cause of chronic disability affecting a steady increasing number of people. The regeneration of osteochondral (OC) defects is one of the most challenging tasks in orthopedics since this anatomical region is composed of different tissues, characterized by antithetic features and functionalities, in tight connection to work together as a joint. The altered structural and mechanical joint environment impairs the natural tissue metabolism, thus making OC regeneration even more challenging. In this scenario, marine-derived ingredients elicit ever-increased interest for biomedical applications as a result of their outstanding mechanical and multiple biologic properties. The review highlights the possibility to exploit such unique features using a combination of bio-inspired synthesis process and 3D manufacturing technologies, relevant to generate compositionally and structurally graded hybrid constructs reproducing the smart architecture and biomechanical functions of natural OC regions.
Collapse
|
3
|
Do T, Synan L, Ali G, Gappa-Fahlenkamp H. 3D tissue-engineered lung models to study immune responses following viral infections of the small airways. Stem Cell Res Ther 2022; 13:464. [PMID: 36071442 PMCID: PMC9449944 DOI: 10.1186/s13287-022-03134-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Accepted: 08/12/2022] [Indexed: 11/10/2022] Open
Abstract
Small airway infections caused by respiratory viruses are some of the most prevalent causes of illness and death. With the recent worldwide pandemic due to the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), there is currently a push in developing models to better understand respiratory diseases. Recent advancements have made it possible to create three-dimensional (3D) tissue-engineered models of different organs. The 3D environment is crucial to study physiological, pathophysiological, and immunomodulatory responses against different respiratory conditions. A 3D human tissue-engineered lung model that exhibits a normal immunological response against infectious agents could elucidate viral and host determinants. To create 3D small airway lung models in vitro, resident epithelial cells at the air-liquid interface are co-cultured with fibroblasts, myeloid cells, and endothelial cells. The air-liquid interface is a key culture condition to develop and differentiate airway epithelial cells in vitro. Primary human epithelial and myeloid cells are considered the best 3D model for studying viral immune responses including migration, differentiation, and the release of cytokines. Future studies may focus on utilizing bioreactors to scale up the production of 3D human tissue-engineered lung models. This review outlines the use of various cell types, scaffolds, and culture conditions for creating 3D human tissue-engineered lung models. Further, several models used to study immune responses against respiratory viruses, such as the respiratory syncytial virus, are analyzed, showing how the microenvironment aids in understanding immune responses elicited after viral infections.
Collapse
Affiliation(s)
- Taylor Do
- Edward Bartlett Chair, School of Chemical Engineering, Oklahoma State University, 420 Engineering North, Stillwater, OK, 74078, USA
| | - Lilly Synan
- Edward Bartlett Chair, School of Chemical Engineering, Oklahoma State University, 420 Engineering North, Stillwater, OK, 74078, USA
| | - Gibran Ali
- Edward Bartlett Chair, School of Chemical Engineering, Oklahoma State University, 420 Engineering North, Stillwater, OK, 74078, USA
| | - Heather Gappa-Fahlenkamp
- Edward Bartlett Chair, School of Chemical Engineering, Oklahoma State University, 420 Engineering North, Stillwater, OK, 74078, USA.
| |
Collapse
|
4
|
Translating Material Science into Bone Regenerative Medicine Applications: State-of-The Art Methods and Protocols. Int J Mol Sci 2022; 23:ijms23169493. [PMID: 36012749 PMCID: PMC9409266 DOI: 10.3390/ijms23169493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 08/18/2022] [Accepted: 08/20/2022] [Indexed: 12/02/2022] Open
Abstract
In the last 20 years, bone regenerative research has experienced exponential growth thanks to the discovery of new nanomaterials and improved manufacturing technologies that have emerged in the biomedical field. This revolution demands standardization of methods employed for biomaterials characterization in order to achieve comparable, interoperable, and reproducible results. The exploited methods for characterization span from biophysics and biochemical techniques, including microscopy and spectroscopy, functional assays for biological properties, and molecular profiling. This review aims to provide scholars with a rapid handbook collecting multidisciplinary methods for bone substitute R&D and validation, getting sources from an up-to-date and comprehensive examination of the scientific landscape.
Collapse
|
5
|
Biru EI, Necolau MI, Zainea A, Iovu H. Graphene Oxide–Protein-Based Scaffolds for Tissue Engineering. Recent Advances and Applications. Polymers (Basel) 2022; 14:polym14051032. [PMID: 35267854 PMCID: PMC8914712 DOI: 10.3390/polym14051032] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 02/27/2022] [Accepted: 03/01/2022] [Indexed: 01/27/2023] Open
Abstract
The field of tissue engineering is constantly evolving as it aims to develop bioengineered and functional tissues and organs for repair or replacement. Due to their large surface area and ability to interact with proteins and peptides, graphene oxides offer valuable physiochemical and biological features for biomedical applications and have been successfully employed for optimizing scaffold architectures for a wide range of organs, from the skin to cardiac tissue. This review critically focuses on opportunities to employ protein–graphene oxide structures either as nanocomposites or as biocomplexes and highlights the effects of carbonaceous nanostructures on protein conformation and structural stability for applications in tissue engineering and regenerative medicine. Herein, recent applications and the biological activity of nanocomposite bioconjugates are analyzed with respect to cell viability and proliferation, along with the ability of these constructs to sustain the formation of new and functional tissue. Novel strategies and approaches based on stem cell therapy, as well as the involvement of the extracellular matrix in the design of smart nanoplatforms, are discussed.
Collapse
Affiliation(s)
- Elena Iuliana Biru
- Advanced Polymer Materials Group, Department of Bioresources and Polymer Science, University Politehnica of Bucharest, 1-7 Gh. Polizu Street, 011061 Bucharest, Romania; (E.I.B.); (M.I.N.); (A.Z.)
| | - Madalina Ioana Necolau
- Advanced Polymer Materials Group, Department of Bioresources and Polymer Science, University Politehnica of Bucharest, 1-7 Gh. Polizu Street, 011061 Bucharest, Romania; (E.I.B.); (M.I.N.); (A.Z.)
| | - Adriana Zainea
- Advanced Polymer Materials Group, Department of Bioresources and Polymer Science, University Politehnica of Bucharest, 1-7 Gh. Polizu Street, 011061 Bucharest, Romania; (E.I.B.); (M.I.N.); (A.Z.)
| | - Horia Iovu
- Advanced Polymer Materials Group, Department of Bioresources and Polymer Science, University Politehnica of Bucharest, 1-7 Gh. Polizu Street, 011061 Bucharest, Romania; (E.I.B.); (M.I.N.); (A.Z.)
- Academy of Romanian Scientists, 54 Splaiul Independentei Street, 050094 Bucharest, Romania
- Correspondence:
| |
Collapse
|