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He L, Yin J, Gao X. Additive Manufacturing of Bioactive Glass and Its Polymer Composites as Bone Tissue Engineering Scaffolds: A Review. Bioengineering (Basel) 2023; 10:672. [PMID: 37370603 DOI: 10.3390/bioengineering10060672] [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: 04/25/2023] [Revised: 05/20/2023] [Accepted: 05/25/2023] [Indexed: 06/29/2023] Open
Abstract
Bioactive glass (BG) and its polymer composites have demonstrated great potential as scaffolds for bone defect healing. Nonetheless, processing these materials into complex geometry to achieve either anatomy-fitting designs or the desired degradation behavior remains challenging. Additive manufacturing (AM) enables the fabrication of BG and BG/polymer objects with well-defined shapes and intricate porous structures. This work reviewed the recent advancements made in the AM of BG and BG/polymer composite scaffolds intended for bone tissue engineering. A literature search was performed using the Scopus database to include publications relevant to this topic. The properties of BG based on different inorganic glass formers, as well as BG/polymer composites, are first introduced. Melt extrusion, direct ink writing, powder bed fusion, and vat photopolymerization are AM technologies that are compatible with BG or BG/polymer processing and were reviewed in terms of their recent advances. The value of AM in the fabrication of BG or BG/polymer composites lies in its ability to produce scaffolds with patient-specific designs and the on-demand spatial distribution of biomaterials, both contributing to effective bone defect healing, as demonstrated by in vivo studies. Based on the relationships among structure, physiochemical properties, and biological function, AM-fabricated BG or BG/polymer composite scaffolds are valuable for achieving safer and more efficient bone defect healing in the future.
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Affiliation(s)
- Lizhe He
- Center for Medical and Engineering Innovation, The First Affiliated Hospital of Ningbo University, Ningbo 315010, China
- The State Key Laboratory of Fluid Power Transmission and Control Systems, Key Laboratory of 3D Printing Process and Equipment of Zhejiang Province, School of Mechanical Engineering, Zhejiang University, Hangzhou 310028, China
| | - Jun Yin
- The State Key Laboratory of Fluid Power Transmission and Control Systems, Key Laboratory of 3D Printing Process and Equipment of Zhejiang Province, School of Mechanical Engineering, Zhejiang University, Hangzhou 310028, China
| | - Xiang Gao
- Department of Neurosurgery, The First Affiliated Hospital of Ningbo University, Ningbo 315010, China
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Mélou C, Pellen-Mussi P, Novello S, Brézulier D, Novella A, Tricot S, Bellaud P, Chauvel-Lebret D. Spheroid Culture System, a Promising Method for Chondrogenic Differentiation of Dental Mesenchymal Stem Cells. Biomedicines 2023; 11:biomedicines11051314. [PMID: 37238984 DOI: 10.3390/biomedicines11051314] [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: 03/21/2023] [Revised: 04/24/2023] [Accepted: 04/25/2023] [Indexed: 05/28/2023] Open
Abstract
The objective of the present work was to develop a three-dimensional culture model to evaluate, in a short period of time, cartilage tissue engineering protocols. The spheroids were compared with the gold standard pellet culture. The dental mesenchymal stem cell lines were from pulp and periodontal ligament. The evaluation used RT-qPCR and Alcian Blue staining of the cartilage matrix. This study showed that the spheroid model allowed for obtaining greater fluctuations of the chondrogenesis markers than for the pellet one. The two cell lines, although originating from the same organ, led to different biological responses. Finally, biological changes were detectable for short periods of time. In summary, this work demonstrated that the spheroid model is a valuable tool for studying chondrogenesis and the mechanisms of osteoarthritis, and evaluating cartilage tissue engineering protocols.
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Affiliation(s)
- Caroline Mélou
- CNRS, ISCR (Institut des Sciences Chimiques de Rennes), University of Rennes, UMR 6226, 35000 Rennes, France
- Pôle d'Odontologie, Centre Hospitalier Universitaire de Rennes, 35033 Rennes, France
- UFR Odontologie, University of Rennes, 35043 Rennes, France
| | - Pascal Pellen-Mussi
- CNRS, ISCR (Institut des Sciences Chimiques de Rennes), University of Rennes, UMR 6226, 35000 Rennes, France
| | - Solen Novello
- CNRS, ISCR (Institut des Sciences Chimiques de Rennes), University of Rennes, UMR 6226, 35000 Rennes, France
- Pôle d'Odontologie, Centre Hospitalier Universitaire de Rennes, 35033 Rennes, France
- UFR Odontologie, University of Rennes, 35043 Rennes, France
| | - Damien Brézulier
- CNRS, ISCR (Institut des Sciences Chimiques de Rennes), University of Rennes, UMR 6226, 35000 Rennes, France
- Pôle d'Odontologie, Centre Hospitalier Universitaire de Rennes, 35033 Rennes, France
| | - Agnès Novella
- CNRS, ISCR (Institut des Sciences Chimiques de Rennes), University of Rennes, UMR 6226, 35000 Rennes, France
| | - Sylvie Tricot
- CNRS, ISCR (Institut des Sciences Chimiques de Rennes), University of Rennes, UMR 6226, 35000 Rennes, France
| | - Pascale Bellaud
- CNRS, Inserm UMS Biosit, France BioImaging, Core Facility H2P2, University of Rennes, 35000 Rennes, France
| | - Dominique Chauvel-Lebret
- CNRS, ISCR (Institut des Sciences Chimiques de Rennes), University of Rennes, UMR 6226, 35000 Rennes, France
- Pôle d'Odontologie, Centre Hospitalier Universitaire de Rennes, 35033 Rennes, France
- UFR Odontologie, University of Rennes, 35043 Rennes, France
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Biodegradable Poly(D-L-lactide-co-glycolide) (PLGA)-Infiltrated Bioactive Glass (CAR12N) Scaffolds Maintain Mesenchymal Stem Cell Chondrogenesis for Cartilage Tissue Engineering. Cells 2022; 11:cells11091577. [PMID: 35563883 PMCID: PMC9100331 DOI: 10.3390/cells11091577] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 05/01/2022] [Accepted: 05/03/2022] [Indexed: 12/11/2022] Open
Abstract
Regeneration of articular cartilage remains challenging. The aim of this study was to increase the stability of pure bioactive glass (BG) scaffolds by means of solvent phase polymer infiltration and to maintain cell adherence on the glass struts. Therefore, BG scaffolds either pure or enhanced with three different amounts of poly(D-L-lactide-co-glycolide) (PLGA) were characterized in detail. Scaffolds were seeded with primary porcine articular chondrocytes (pACs) and human mesenchymal stem cells (hMSCs) in a dynamic long-term culture (35 days). Light microscopy evaluations showed that PLGA was detectable in every region of the scaffold. Porosity was greater than 70%. The biomechanical stability was increased by polymer infiltration. PLGA infiltration did not result in a decrease in viability of both cell types, but increased DNA and sulfated glycosaminoglycan (sGAG) contents of hMSCs-colonized scaffolds. Successful chondrogenesis of hMSC-colonized scaffolds was demonstrated by immunocytochemical staining of collagen type II, cartilage proteoglycans and the transcription factor SOX9. PLGA-infiltrated scaffolds showed a higher relative expression of cartilage related genes not only of pAC-, but also of hMSC-colonized scaffolds in comparison to the pure BG. Based on the novel data, our recommendation is BG scaffolds with single infiltrated PLGA for cartilage tissue engineering.
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