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Wei L, Chen Y, Hu J, Hu X, Wang J, Li K. A Light-Powered Self-Circling Slider on an Elliptical Track with a Liquid Crystal Elastomer Fiber. Polymers (Basel) 2024; 16:2375. [PMID: 39204594 PMCID: PMC11360780 DOI: 10.3390/polym16162375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2024] [Revised: 08/13/2024] [Accepted: 08/20/2024] [Indexed: 09/04/2024] Open
Abstract
In this paper, we propose an innovative light-powered LCE-slider system that enables continuous self-circling on an elliptical track and is comprised of a light-powered LCE string, slider, and rigid elliptical track. By formulating and solving dimensionless dynamic equations, we explain static and self-circling states, emphasizing self-circling dynamics and energy balance. Quantitative analysis reveals that the self-circling frequency of LCE-slider systems is independent of the initial tangential velocity but sensitive to light intensity, contraction coefficients, elastic coefficients, the elliptical axis ratio, and damping coefficients. Notably, elliptical motion outperforms circular motion in angular velocity and frequency, indicating greater efficiency. Reliable self-circling under constant light suggests applications in periodic motion fields, especially celestial mechanics. Additionally, the system's remarkable adaptability to a wide range of curved trajectories exemplifies its flexibility and versatility, while its energy absorption and conversion capabilities position it as a highly potential candidate for applications in robotics, construction, and transportation.
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Affiliation(s)
| | | | | | | | | | - Kai Li
- School of Civil Engineering, Anhui Jianzhu University, Hefei 230601, China; (L.W.); (Y.C.); (J.H.); (X.H.); (J.W.)
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2
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Tong Y, Yuan J, Li Z, Deng C, Cheng Y. Drug-Loaded Bioscaffolds for Osteochondral Regeneration. Pharmaceutics 2024; 16:1095. [PMID: 39204440 PMCID: PMC11360256 DOI: 10.3390/pharmaceutics16081095] [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: 05/12/2024] [Revised: 07/20/2024] [Accepted: 07/25/2024] [Indexed: 09/04/2024] Open
Abstract
Osteochondral defect is a complex tissue loss disease caused by arthritis, high-energy trauma, and many other reasons. Due to the unique structural characteristics of osteochondral tissue, the repair process is sophisticated and involves the regeneration of both hyaline cartilage and subchondral bone. However, the current clinical treatments often fall short of achieving the desired outcomes. Tissue engineering bioscaffolds, especially those created via three-dimensional (3D) printing, offer promising solutions for osteochondral defects due to their precisely controllable 3D structures. The microstructure of 3D-printed bioscaffolds provides an excellent physical environment for cell adhesion and proliferation, as well as nutrient transport. Traditional 3D-printed bioscaffolds offer mere physical stimulation, while drug-loaded 3D bioscaffolds accelerate the tissue repair process by synergistically combining drug therapy with physical stimulation. In this review, the physiological characteristics of osteochondral tissue and current treatments of osteochondral defect were reviewed. Subsequently, the latest progress in drug-loaded bioscaffolds was discussed and highlighted in terms of classification, characteristics, and applications. The perspectives of scaffold design, drug control release, and biosafety were also discussed. We hope this article will serve as a valuable reference for the design and development of osteochondral regenerative bioscaffolds and pave the way for the use of drug-loaded bioscaffolds in clinical therapy.
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Affiliation(s)
| | | | | | - Cuijun Deng
- Shanghai Key Laboratory of Anesthesiology and Brain Functional Modulation, Clinical Research Center for Anesthesiology and Perioperative Medicine, Translational Research Institute of Brain and Brain-like Intelligence, Shanghai Fourth People’s Hospital, School of Medicine, Tongji University, Shanghai 200434, China; (Y.T.); (J.Y.); (Z.L.)
| | - Yu Cheng
- Shanghai Key Laboratory of Anesthesiology and Brain Functional Modulation, Clinical Research Center for Anesthesiology and Perioperative Medicine, Translational Research Institute of Brain and Brain-like Intelligence, Shanghai Fourth People’s Hospital, School of Medicine, Tongji University, Shanghai 200434, China; (Y.T.); (J.Y.); (Z.L.)
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3
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Tamo AK. Nanocellulose-based hydrogels as versatile materials with interesting functional properties for tissue engineering applications. J Mater Chem B 2024; 12:7692-7759. [PMID: 38805188 DOI: 10.1039/d4tb00397g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2024]
Abstract
Tissue engineering has emerged as a remarkable field aiming to restore or replace damaged tissues through the use of biomimetic constructs. Among the diverse materials investigated for this purpose, nanocellulose-based hydrogels have garnered attention due to their intriguing biocompatibility, tunable mechanical properties, and sustainability. Over the past few years, numerous research works have been published focusing on the successful use of nanocellulose-based hydrogels as artificial extracellular matrices for regenerating various types of tissues. The review emphasizes the importance of tissue engineering, highlighting hydrogels as biomimetic scaffolds, and specifically focuses on the role of nanocellulose in composites that mimic the structures, properties, and functions of the native extracellular matrix for regenerating damaged tissues. It also summarizes the types of nanocellulose, as well as their structural, mechanical, and biological properties, and their contributions to enhancing the properties and characteristics of functional hydrogels for tissue engineering of skin, bone, cartilage, heart, nerves and blood vessels. Additionally, recent advancements in the application of nanocellulose-based hydrogels for tissue engineering have been evaluated and documented. The review also addresses the challenges encountered in their fabrication while exploring the potential future prospects of these hydrogel matrices for biomedical applications.
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Affiliation(s)
- Arnaud Kamdem Tamo
- Institute of Microsystems Engineering IMTEK, University of Freiburg, 79110 Freiburg, Germany.
- Freiburg Center for Interactive Materials and Bioinspired Technologies FIT, University of Freiburg, 79110 Freiburg, Germany
- Freiburg Materials Research Center FMF, University of Freiburg, 79104 Freiburg, Germany
- Ingénierie des Matériaux Polymères (IMP), Université Claude Bernard Lyon 1, INSA de Lyon, Université Jean Monnet, CNRS, UMR 5223, 69622 Villeurbanne CEDEX, France
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Aminmansour S, Cardoso LM, Anselmi C, de Carvalho ABG, Rahimnejad M, Bottino MC. Development of Cerium Oxide-Laden GelMA/PCL Scaffolds for Periodontal Tissue Engineering. MATERIALS (BASEL, SWITZERLAND) 2024; 17:3904. [PMID: 39203082 PMCID: PMC11355598 DOI: 10.3390/ma17163904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/20/2024] [Revised: 07/31/2024] [Accepted: 08/01/2024] [Indexed: 09/03/2024]
Abstract
This study investigated gelatin methacryloyl (GelMA) and polycaprolactone (PCL) blend scaffolds incorporating cerium oxide (CeO) nanoparticles at concentrations of 0%, 5%, and 10% w/w via electrospinning for periodontal tissue engineering. The impact of photocrosslinking on these scaffolds was evaluated by comparing crosslinked (C) and non-crosslinked (NC) versions. Methods included Fourier transform infrared spectroscopy (FTIR) for chemical analysis, scanning electron microscopy (SEM) for fiber morphology/diameters, and assessments of swelling capacity, degradation profile, and biomechanical properties. Biological evaluations with alveolar bone-derived mesenchymal stem cells (aBMSCs) and human gingival fibroblasts (HGFs) encompassed tests for cell viability, mineralized nodule deposition (MND), and collagen production (CP). Statistical analysis was performed using Kruskal-Wallis or ANOVA/post-hoc tests (α = 5%). Results indicate that C scaffolds had larger fiber diameters (~250 nm) compared with NC scaffolds (~150 nm). NC scaffolds exhibited higher swelling capacities than C scaffolds, while both types demonstrated significant mass loss (~50%) after 60 days (p < 0.05). C scaffolds containing CeO showed increased Young's modulus and tensile strength than NC scaffolds. Cells cultured on C scaffolds with 10% CeO exhibited significantly higher metabolic activity (>400%, p < 0.05) after 7 days among all groups. Furthermore, CeO-containing scaffolds promoted enhanced MND by aBMSCs (>120%, p < 0.05) and increased CP in 5% CeO scaffolds for both variants (>180%, p < 0.05). These findings underscore the promising biomechanical properties, biodegradability, cytocompatibility, and enhanced tissue regenerative potential of CeO-loaded GelMA/PCL scaffolds for periodontal applications.
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Affiliation(s)
- Sahar Aminmansour
- Department of Cariology, Restorative Sciences and Endodontics, School of Dentistry, University of Michigan, 1011 N. University Avenue, Ann Arbor, MI 48109, USA; (S.A.); (L.M.C.); (C.A.); (A.B.G.d.C.); (M.R.)
| | - Lais M. Cardoso
- Department of Cariology, Restorative Sciences and Endodontics, School of Dentistry, University of Michigan, 1011 N. University Avenue, Ann Arbor, MI 48109, USA; (S.A.); (L.M.C.); (C.A.); (A.B.G.d.C.); (M.R.)
- Department of Dental Materials and Prosthodontics, School of Dentistry, São Paulo State University (UNESP), 1680 Humaitá Street, Araraquara 14801-903, SP, Brazil
| | - Caroline Anselmi
- Department of Cariology, Restorative Sciences and Endodontics, School of Dentistry, University of Michigan, 1011 N. University Avenue, Ann Arbor, MI 48109, USA; (S.A.); (L.M.C.); (C.A.); (A.B.G.d.C.); (M.R.)
- Department of Morphology and Pediatric Dentistry, School of Dentistry, São Paulo State University (UNESP), 1680 Humaitá Street, Araraquara 14801-903, SP, Brazil
| | - Ana Beatriz Gomes de Carvalho
- Department of Cariology, Restorative Sciences and Endodontics, School of Dentistry, University of Michigan, 1011 N. University Avenue, Ann Arbor, MI 48109, USA; (S.A.); (L.M.C.); (C.A.); (A.B.G.d.C.); (M.R.)
- Department of Dental Materials and Prosthodontics, School of Dentistry, São Paulo State University (UNESP), 777 Eng. Francisco Jose Longo Avenue, São José dos Campos 12245-000, SP, Brazil
| | - Maedeh Rahimnejad
- Department of Cariology, Restorative Sciences and Endodontics, School of Dentistry, University of Michigan, 1011 N. University Avenue, Ann Arbor, MI 48109, USA; (S.A.); (L.M.C.); (C.A.); (A.B.G.d.C.); (M.R.)
| | - Marco C. Bottino
- Department of Cariology, Restorative Sciences and Endodontics, School of Dentistry, University of Michigan, 1011 N. University Avenue, Ann Arbor, MI 48109, USA; (S.A.); (L.M.C.); (C.A.); (A.B.G.d.C.); (M.R.)
- Department of Biomedical Engineering, College of Engineering, University of Michigan, Ann Arbor, MI 48109, USA
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Rodzeń K, O’Donnell E, Hasson F, McIlhagger A, Meenan BJ, Ullah J, Strachota B, Strachota A, Duffy S, Boyd A. Advanced 3D Printing of Polyetherketoneketone Hydroxyapatite Composites via Fused Filament Fabrication with Increased Interlayer Connection. MATERIALS (BASEL, SWITZERLAND) 2024; 17:3161. [PMID: 38998244 PMCID: PMC11242051 DOI: 10.3390/ma17133161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2024] [Revised: 06/12/2024] [Accepted: 06/13/2024] [Indexed: 07/14/2024]
Abstract
Additively manufactured implants, surgical guides, and medical devices that would have direct contact with the human body require predictable behaviour when stress is applied during their standard operation. Products built with Fused Filament Fabrication (FFF) possess orthotropic characteristics, thus, it is necessary to determine the properties that can be achieved in the XY- and Z-directions of printing. A concentration of 10 wt% of hydroxyapatite (HA) in polyetherketoneketone (PEKK) matrix was selected as the most promising biomaterial supporting cell attachment for medical applications and was characterized with an Ultimate Tensile Strength (UTS) of 78.3 MPa and 43.9 MPa in the XY- and Z-directions of 3D printing, respectively. The effect of the filler on the crystallization kinetics, which is a key parameter for the selection of semicrystalline materials suitable for 3D printing, was explained. This work clearly shows that only in situ crystallization provides the ability to build parts with a more thermodynamically stable primary form of crystallites.
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Affiliation(s)
- Krzysztof Rodzeń
- School of Engineering, Ulster University, York St, Belfast BT15 1ED, UK; (E.O.); (F.H.); (A.M.); (B.J.M.); (J.U.); (S.D.)
| | - Eiméar O’Donnell
- School of Engineering, Ulster University, York St, Belfast BT15 1ED, UK; (E.O.); (F.H.); (A.M.); (B.J.M.); (J.U.); (S.D.)
| | - Frances Hasson
- School of Engineering, Ulster University, York St, Belfast BT15 1ED, UK; (E.O.); (F.H.); (A.M.); (B.J.M.); (J.U.); (S.D.)
| | - Alistair McIlhagger
- School of Engineering, Ulster University, York St, Belfast BT15 1ED, UK; (E.O.); (F.H.); (A.M.); (B.J.M.); (J.U.); (S.D.)
| | - Brian J. Meenan
- School of Engineering, Ulster University, York St, Belfast BT15 1ED, UK; (E.O.); (F.H.); (A.M.); (B.J.M.); (J.U.); (S.D.)
| | - Jawad Ullah
- School of Engineering, Ulster University, York St, Belfast BT15 1ED, UK; (E.O.); (F.H.); (A.M.); (B.J.M.); (J.U.); (S.D.)
| | - Beata Strachota
- Institute of Macromolecular Chemistry v.v.i., Academy of Sciences of the Czech Republic, Heyrovskeho nam. 2, 162 00 Praha, Czech Republic; (B.S.); (A.S.)
| | - Adam Strachota
- Institute of Macromolecular Chemistry v.v.i., Academy of Sciences of the Czech Republic, Heyrovskeho nam. 2, 162 00 Praha, Czech Republic; (B.S.); (A.S.)
| | - Sean Duffy
- School of Engineering, Ulster University, York St, Belfast BT15 1ED, UK; (E.O.); (F.H.); (A.M.); (B.J.M.); (J.U.); (S.D.)
| | - Adrian Boyd
- School of Engineering, Ulster University, York St, Belfast BT15 1ED, UK; (E.O.); (F.H.); (A.M.); (B.J.M.); (J.U.); (S.D.)
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Grumezescu V, Gherasim O, Gălățeanu B, Hudiță A. Antitumoral-Embedded Biopolymeric Spheres for Implantable Devices. Pharmaceutics 2024; 16:754. [PMID: 38931875 PMCID: PMC11207774 DOI: 10.3390/pharmaceutics16060754] [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: 04/23/2024] [Revised: 05/29/2024] [Accepted: 05/30/2024] [Indexed: 06/28/2024] Open
Abstract
The bioactive surface modification of implantable devices paves the way towards the personalized healthcare practice by providing a versatile and tunable approach that increase the patient outcome, facilitate the medical procedure, and reduce the indirect or secondary effects. The purpose of our study was to assess the performance of composite coatings based on biopolymeric spheres of poly(lactide-co-glycolide) embedded with hydroxyapatite (HA) and methotrexate (MTX). Bio-simulated tests performed for up to one week evidenced the gradual release of the antitumor drug and the biomineralization potential of PLGA/HA-MTX sphere coatings. The composite materials proved superior biocompatibility and promoted enhanced cell adhesion and proliferation with respect to human preosteoblast and osteosarcoma cell lines when compared to pristine titanium.
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Affiliation(s)
- Valentina Grumezescu
- Lasers Department, National Institute for Lasers, Plasma and Radiation Physics, 077125 Magurele, Romania
| | - Oana Gherasim
- Lasers Department, National Institute for Lasers, Plasma and Radiation Physics, 077125 Magurele, Romania
| | - Bianca Gălățeanu
- Department of Biochemistry and Molecular Biology, University of Bucharest, 050095 Bucharest, Romania
| | - Ariana Hudiță
- Department of Biochemistry and Molecular Biology, University of Bucharest, 050095 Bucharest, Romania
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7
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Tamo AK, Djouonkep LDW, Selabi NBS. 3D Printing of Polysaccharide-Based Hydrogel Scaffolds for Tissue Engineering Applications: A Review. Int J Biol Macromol 2024; 270:132123. [PMID: 38761909 DOI: 10.1016/j.ijbiomac.2024.132123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 05/02/2024] [Accepted: 05/04/2024] [Indexed: 05/20/2024]
Abstract
In tissue engineering, 3D printing represents a versatile technology employing inks to construct three-dimensional living structures, mimicking natural biological systems. This technology efficiently translates digital blueprints into highly reproducible 3D objects. Recent advances have expanded 3D printing applications, allowing for the fabrication of diverse anatomical components, including engineered functional tissues and organs. The development of printable inks, which incorporate macromolecules, enzymes, cells, and growth factors, is advancing with the aim of restoring damaged tissues and organs. Polysaccharides, recognized for their intrinsic resemblance to components of the extracellular matrix have garnered significant attention in the field of tissue engineering. This review explores diverse 3D printing techniques, outlining distinctive features that should characterize scaffolds used as ideal matrices in tissue engineering. A detailed investigation into the properties and roles of polysaccharides in tissue engineering is highlighted. The review also culminates in a profound exploration of 3D polysaccharide-based hydrogel applications, focusing on recent breakthroughs in regenerating different tissues such as skin, bone, cartilage, heart, nerve, vasculature, and skeletal muscle. It further addresses challenges and prospective directions in 3D printing hydrogels based on polysaccharides, paving the way for innovative research to fabricate functional tissues, enhancing patient care, and improving quality of life.
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Affiliation(s)
- Arnaud Kamdem Tamo
- Institute of Microsystems Engineering IMTEK, University of Freiburg, 79110 Freiburg, Germany; Freiburg Center for Interactive Materials and Bioinspired Technologies FIT, University of Freiburg, 79110 Freiburg, Germany; Freiburg Materials Research Center FMF, University of Freiburg, 79104 Freiburg, Germany; Ingénierie des Matériaux Polymères (IMP), Université Claude Bernard Lyon 1, INSA de Lyon, Université Jean Monnet, CNRS, UMR 5223, 69622 Villeurbanne CEDEX, France.
| | - Lesly Dasilva Wandji Djouonkep
- College of Petroleum Engineering, Yangtze University, Wuhan 430100, China; Key Laboratory of Drilling and Production Engineering for Oil and Gas, Wuhan 430100, China
| | - Naomie Beolle Songwe Selabi
- Institute of Advanced Materials and Nanotechnology, Wuhan University of Science and Technology, Wuhan 430081, China
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8
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Wang F, Hou L, Shan YH, Li ZS, Yang XF. Polyurethane-based three-dimensional printing for biological mesh carriers. Sci Rep 2024; 14:12278. [PMID: 38806559 PMCID: PMC11133434 DOI: 10.1038/s41598-024-63000-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Accepted: 05/23/2024] [Indexed: 05/30/2024] Open
Abstract
Repair and reconstruction of the myopectineal orifice area using meshes is the mainstay of surgical treatment of inguinal hernias. However, the limitations of existing meshes are becoming increasingly evident in clinical applications; thus, the idea of using three-dimensionally (3D)-printed biological meshes was put forward. According to the current level of the 3D printing technology and the inherent characteristics of biological materials, the direct use of the 3D printing technology for making biological materials into finished products suitable for clinical applications is not yet supported, but synthetic materials can be first printed into 3D form carriers, compounded with biological materials, and finally made into finished products. The purpose of this study was to develop a technical protocol for making 3D-printed biomesh carriers using polyurethane as a raw material. In our study: raw material, polyurethane; weight, 20-30 g/m2; weaving method, hexagonal mesh; elastic tension aspect ratio, 2:1; diameters of pores, 0.1-1 mm; surface area, 8 × 12 cm2; the optimal printing layer height, temperature and velocity were 0.1 mm, 210-220 °C and 60 mm/s. Its clinical significance lies in: (1) applied to preoperative planning and design a detailed surgical plan; (2) applied to special types of surgery including patients in puberty, recurrent and compound inguinal hernias; (3) significantly improve the efficiency of doctor-patient communication; (4) it can shorten the operation and recovery period by about 1/3 and can save about 1/4 of the cost for patients; (5) the learning curve is significantly shortened, which is conducive to the cultivation of reserve talents.
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Affiliation(s)
- Feng Wang
- Department of General Surgery, The First Hospital of Shanxi Medical University, Taiyuan, 030001, Shanxi Province, China.
| | - Lin Hou
- The First Clinical College of Shanxi Medical University, Taiyuan, 030001, Shanxi Province, China
| | - Yan-Hui Shan
- The First Clinical College of Shanxi Medical University, Taiyuan, 030001, Shanxi Province, China
| | - Zhen-Su Li
- Department of General Surgery, The First Hospital of Shanxi Medical University, Taiyuan, 030001, Shanxi Province, China
| | - Xiao-Feng Yang
- Department of Urology, The First Hospital of Shanxi Medical University, Taiyuan, 030001, Shanxi Province, China
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Chen X, Yang M, Zhou Z, Sun J, Meng X, Huang Y, Zhu W, Zhu S, He N, Zhu X, Han X, Liu H. An Anti-Oxidative Bioink for Cartilage Tissue Engineering Applications. J Funct Biomater 2024; 15:37. [PMID: 38391890 PMCID: PMC10889144 DOI: 10.3390/jfb15020037] [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: 12/11/2023] [Revised: 01/21/2024] [Accepted: 01/26/2024] [Indexed: 02/24/2024] Open
Abstract
Since chondrocytes are highly vulnerable to oxidative stress, an anti-oxidative bioink combined with 3D bioprinting may facilitate its applications in cartilage tissue engineering. We developed an anti-oxidative bioink with methacrylate-modified rutin (RTMA) as an additional bioactive component and glycidyl methacrylate silk fibroin as a biomaterial component. Bioink containing 0% RTMA was used as the control sample. Compared with hydrogel samples produced with the control bioink, solidified anti-oxidative bioinks displayed a similar porous microstructure, which is suitable for cell adhesion and migration, and the transportation of nutrients and wastes. Among photo-cured samples prepared with anti-oxidative bioinks and the control bioink, the sample containing 1 mg/mL of RTMA (RTMA-1) showed good degradation, promising mechanical properties, and the best cytocompatibility, and it was selected for further investigation. Based on the results of 3D bioprinting tests, the RTMA-1 bioink exhibited good printability and high shape fidelity. The results demonstrated that RTMA-1 reduced intracellular oxidative stress in encapsulated chondrocytes under H2O2 stimulation, which results from upregulation of COLII and AGG and downregulation of MMP13 and MMP1. By using in vitro and in vivo tests, our data suggest that the RTMA-1 bioink significantly enhanced the regeneration and maturation of cartilage tissue compared to the control bioink, indicating that this anti-oxidative bioink can be used for 3D bioprinting and cartilage tissue engineering applications in the future.
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Affiliation(s)
- Xin Chen
- College of Material Science and Engineering, Hunan University, Changsha 410082, China
| | - Mengni Yang
- College of Material Science and Engineering, Hunan University, Changsha 410082, China
| | - Zheng Zhou
- College of Biology, Hunan University, Changsha 410082, China
| | - Jingjing Sun
- College of Biology, Hunan University, Changsha 410082, China
| | - Xiaolin Meng
- College of Material Science and Engineering, Hunan University, Changsha 410082, China
| | - Yuting Huang
- College of Material Science and Engineering, Hunan University, Changsha 410082, China
| | - Wenxiang Zhu
- College of Material Science and Engineering, Hunan University, Changsha 410082, China
| | - Shuai Zhu
- College of Material Science and Engineering, Hunan University, Changsha 410082, China
| | - Ning He
- College of Mechanical and Vehicle Engineering, Hunan University, Changsha 410082, China
| | - Xiaolong Zhu
- College of Mechanical and Vehicle Engineering, Hunan University, Changsha 410082, China
| | - Xiaoxiao Han
- College of Mechanical and Vehicle Engineering, Hunan University, Changsha 410082, China
| | - Hairong Liu
- College of Material Science and Engineering, Hunan University, Changsha 410082, China
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10
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Zhang X, Gong C, Wang X, Wei Z, Guo W. A Bioactive Gelatin-Methacrylate Incorporating Magnesium Phosphate Cement for Bone Regeneration. Biomedicines 2024; 12:228. [PMID: 38275399 PMCID: PMC10813803 DOI: 10.3390/biomedicines12010228] [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: 12/12/2023] [Revised: 01/12/2024] [Accepted: 01/16/2024] [Indexed: 01/27/2024] Open
Abstract
Maintaining proper mechanical strength and tissue volume is important for bone growth at the site of a bone defect. In this study, potassium magnesium phosphate hexahydrate (KMgPO4·6H2O, MPC) was applied to gelma-methacrylate hydrogel (GelMA) to prepare GelMA/MPC composites (GMPCs). Among these, 5 GMPC showed the best performance in vivo and in vitro. These combinations significantly enhanced the mechanical strength of GelMA and regulated the degradation and absorption rate of MPC. Considerably better mechanical properties were noted in 5 GMPC compared with other concentrations. Better bioactivity and osteogenic ability were also found in 5 GMPC. Magnesium ions (Mg2+) are bioactive and proven to promote bone tissue regeneration, in which the enhancement efficiency is closely related to Mg2+ concentrations. These findings indicated that GMPCs that can release Mg2+ are effective in the treatment of bone defects and hold promise for future in vivo applications.
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Affiliation(s)
| | | | | | | | - Weichun Guo
- Department of Orthopedics, Renmin Hospital of Wuhan University, Wuhan 430060, China; (X.Z.); (C.G.); (X.W.); (Z.W.)
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11
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Negrescu AM, Mocanu AC, Miculescu F, Mitran V, Constantinescu AE, Cimpean A. In Vitro Studies on 3D-Printed PLA/HA/GNP Structures for Bone Tissue Regeneration. Biomimetics (Basel) 2024; 9:55. [PMID: 38275452 PMCID: PMC10813057 DOI: 10.3390/biomimetics9010055] [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: 11/28/2023] [Revised: 12/29/2023] [Accepted: 01/15/2024] [Indexed: 01/27/2024] Open
Abstract
The successful regeneration of large-size bone defects remains one of the most critical challenges faced in orthopaedics. Recently, 3D printing technology has been widely used to fabricate reliable, reproducible and economically affordable scaffolds with specifically designed shapes and porosity, capable of providing sufficient biomimetic cues for a desired cellular behaviour. Natural or synthetic polymers reinforced with active bioceramics and/or graphene derivatives have demonstrated adequate mechanical properties and a proper cellular response, attracting the attention of researchers in the bone regeneration field. In the present work, 3D-printed graphene nanoplatelet (GNP)-reinforced polylactic acid (PLA)/hydroxyapatite (HA) composite scaffolds were fabricated using the fused deposition modelling (FDM) technique. The in vitro response of the MC3T3-E1 pre-osteoblasts and RAW 264.7 macrophages revealed that these newly designed scaffolds exhibited various survival rates and a sustained proliferation. Moreover, as expected, the addition of HA into the PLA matrix contributed to mimicking a bone extracellular matrix, leading to positive effects on the pre-osteoblast osteogenic differentiation. In addition, a limited inflammatory response was also observed. Overall, the results suggest the great potential of the newly developed 3D-printed composite materials as suitable candidates for bone tissue engineering applications.
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Affiliation(s)
- Andreea-Mariana Negrescu
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Bucharest, 91-95 Splaiul Independentei, 050095 Bucharest, Romania; (A.-M.N.); (V.M.)
| | - Aura-Cătălina Mocanu
- Department of Metallic Materials Science, Physical Metallurgy, National University of Science and Technology Politehnica Bucharest, 313 Splaiul Independentei, J Building, District 6, 060042 Bucharest, Romania; (A.-C.M.); (F.M.); (A.-E.C.)
| | - Florin Miculescu
- Department of Metallic Materials Science, Physical Metallurgy, National University of Science and Technology Politehnica Bucharest, 313 Splaiul Independentei, J Building, District 6, 060042 Bucharest, Romania; (A.-C.M.); (F.M.); (A.-E.C.)
| | - Valentina Mitran
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Bucharest, 91-95 Splaiul Independentei, 050095 Bucharest, Romania; (A.-M.N.); (V.M.)
| | - Andreea-Elena Constantinescu
- Department of Metallic Materials Science, Physical Metallurgy, National University of Science and Technology Politehnica Bucharest, 313 Splaiul Independentei, J Building, District 6, 060042 Bucharest, Romania; (A.-C.M.); (F.M.); (A.-E.C.)
| | - Anisoara Cimpean
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Bucharest, 91-95 Splaiul Independentei, 050095 Bucharest, Romania; (A.-M.N.); (V.M.)
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