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Desai N, Pande S, Vora LK, Kommineni N. Nanofibrous Microspheres: A Biomimetic Platform for Bone Tissue Regeneration. ACS APPLIED BIO MATERIALS 2024; 7:4270-4292. [PMID: 38950103 DOI: 10.1021/acsabm.4c00613] [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] [Indexed: 07/03/2024]
Abstract
Bone, a fundamental constituent of the human body, is a vital scaffold for support, protection, and locomotion, underscoring its pivotal role in maintaining skeletal integrity and overall functionality. However, factors such as trauma, disease, or aging can compromise bone structure, necessitating effective strategies for regeneration. Traditional approaches often lack biomimetic environments conducive to efficient tissue repair. Nanofibrous microspheres (NFMS) present a promising biomimetic platform for bone regeneration by mimicking the native extracellular matrix architecture. Through optimized fabrication techniques and the incorporation of active biomolecular components, NFMS can precisely replicate the nanostructure and biochemical cues essential for osteogenesis promotion. Furthermore, NFMS exhibit versatile properties, including tunable morphology, mechanical strength, and controlled release kinetics, augmenting their suitability for tailored bone tissue engineering applications. NFMS enhance cell recruitment, attachment, and proliferation, while promoting osteogenic differentiation and mineralization, thereby accelerating bone healing. This review highlights the pivotal role of NFMS in bone tissue engineering, elucidating their design principles and key attributes. By examining recent preclinical applications, we assess their current clinical status and discuss critical considerations for potential clinical translation. This review offers crucial insights for researchers at the intersection of biomaterials and tissue engineering, highlighting developments in this expanding field.
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Affiliation(s)
- Nimeet Desai
- Department of Biomedical Engineering, Indian Institute of Technology Hyderabad, Kandi 502285, India
| | - Shreya Pande
- Department of Biomedical Engineering, Indian Institute of Technology Hyderabad, Kandi 502285, India
| | - Lalitkumar K Vora
- School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7BL, United Kingdom
| | - Nagavendra Kommineni
- Center for Biomedical Research, Population Council, New York, New York 10065, United States
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2
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Gokyer S, Monsef YA, Buyuksungur S, Schmidt J, Vladescu Dragomir A, Uygur S, Oto C, Orhan K, Hasirci V, Hasirci N, Yilgor P. MgCa-Based Alloys Modified with Zn- and Ga-Doped CaP Coatings Lead to Controlled Degradation and Enhanced Bone Formation in a Sheep Cranium Defect Model. ACS Biomater Sci Eng 2024; 10:4452-4462. [PMID: 38875708 PMCID: PMC11234335 DOI: 10.1021/acsbiomaterials.4c00358] [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] [Indexed: 06/16/2024]
Abstract
Mg-based biodegradable metallic implants are gaining increased attraction for applications in orthopedics and dentistry. However, their current applications are hampered by their high rate of corrosion, degradation, and rapid release of ions and gas bubbles into the physiological medium. The aim of the present study is to investigate the osteogenic and angiogenic potential of coated Mg-based implants in a sheep cranial defect model. Although their osteogenic potential was studied to some extent, their potential to regenerate vascularized bone formation was not studied in detail. We have studied the potential of magnesium-calcium (MgCa)-based alloys modified with zinc (Zn)- or gallium (Ga)-doped calcium phosphate (CaP) coatings as a strategy to control their degradation rate while enhancing bone regeneration capacity. MgCa and its implants with CaP coatings (MgCa/CaP) as undoped or as doped with Zn or Ga (MgCa/CaP + Zn and MgCa/CaP + Ga, respectively) were implanted in bone defects created in the sheep cranium. MgCa implants degraded faster than the others at 4 weeks postop and the weight loss was ca. 50%, while it was ca. 15% for MgCa/CaP and <10% in the presence of Zn and Ga with CaP coating. Scanning electron microscopy (SEM) analysis of the implant surfaces also revealed that the MgCa implants had the largest degree of structural breakdown of all the groups. Radiological evaluation revealed that surface modification with CaP to the MgCa implants induced better bone regeneration within the defects as well as the enhancement of bone-implant surface integration. Bone volume (%) within the defect was ca. 25% in the case of MgCa/CaP + Ga, while it was around 15% for undoped MgCa group upon micro-CT evaluation. This >1.5-fold increase in bone regeneration for MgCa/CaP + Ga implant was also observed in the histopathological examination of the H&E- and Masson's trichrome-stained sections. Immunohistochemical analysis of the bone regeneration (antiosteopontin) and neovascularization (anti-CD31) at the defect sites revealed >2-fold increase in the expression of the markers in both Ga- and Zn-doped, CaP-coated implants. Zn-doped implants further presented low inflammatory reaction, notable bone regeneration, and neovascularization among all the implant groups. These findings indicated that Ga- and Zn-doped CaP coating is an important strategy to control the degradation rate as well as to achieve enhanced bone regeneration capacity of the implants made of Mg-based alloys.
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Affiliation(s)
- Seyda Gokyer
- Department of Biomedical Engineering, Ankara University, Ankara 06830, Turkey
| | - Yanad Abou Monsef
- Anatomic Pathology Department, National Veterinary School of Toulouse, Toulouse 31300, France
| | - Senem Buyuksungur
- BIOMATEN, Center of Excellence in Biomaterials and Tissue Engineering, Middle East Technical University (METU), Ankara 06800, Turkey
| | - Jurgen Schmidt
- Gruppenleiter Elektrochemie, Prüssingstraße 27b, INNOVENT e.V. Technologieentwicklung, Jena 07745, Germany
| | - Alina Vladescu Dragomir
- 409 Atomistilor St., National Institute of R&D for Optoelectronics─INOE 2000, Magurele 77125, Romania
- Research School of Chemistry & Applied Biomedical Sciences, National Research Tomsk Polytechnic University, Tomsk 634050, Russia
| | | | | | | | - Vasif Hasirci
- BIOMATEN, Center of Excellence in Biomaterials and Tissue Engineering, Middle East Technical University (METU), Ankara 06800, Turkey
| | - Nesrin Hasirci
- BIOMATEN, Center of Excellence in Biomaterials and Tissue Engineering, Middle East Technical University (METU), Ankara 06800, Turkey
- METU Department of Chemistry, Ankara 06800, Turkey
- Near East University Tissue Engineering and Biomaterials Research Center, Nicosia 99138, TRNC Mersin 10, Turkey
| | - Pinar Yilgor
- Department of Biomedical Engineering, Ankara University, Ankara 06830, Turkey
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3
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Yuan X, Zhu W, Yang Z, He N, Chen F, Han X, Zhou K. Recent Advances in 3D Printing of Smart Scaffolds for Bone Tissue Engineering and Regeneration. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024:e2403641. [PMID: 38861754 DOI: 10.1002/adma.202403641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Revised: 05/15/2024] [Indexed: 06/13/2024]
Abstract
The repair and functional reconstruction of bone defects resulting from severe trauma, surgical resection, degenerative disease, and congenital malformation pose significant clinical challenges. Bone tissue engineering (BTE) holds immense potential in treating these severe bone defects, without incurring prevalent complications associated with conventional autologous or allogeneic bone grafts. 3D printing technology enables control over architectural structures at multiple length scales and has been extensively employed to process biomimetic scaffolds for BTE. In contrast to inert and functional bone grafts, next-generation smart scaffolds possess a remarkable ability to mimic the dynamic nature of native extracellular matrix (ECM), thereby facilitating bone repair and regeneration. Additionally, they can generate tailored and controllable therapeutic effects, such as antibacterial or antitumor properties, in response to exogenous and/or endogenous stimuli. This review provides a comprehensive assessment of the progress of 3D-printed smart scaffolds for BTE applications. It begins with an introduction to bone physiology, followed by an overview of 3D printing technologies utilized for smart scaffolds. Notable advances in various stimuli-responsive strategies, therapeutic efficacy, and applications of 3D-printed smart scaffolds are discussed. Finally, the review highlights the existing challenges in the development and clinical implementation of smart scaffolds, as well as emerging technologies in this field.
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Affiliation(s)
- Xun Yuan
- National Engineering Research Centre for High Efficiency Grinding, College of Mechanical and Vehicle Engineering, Hunan University, Changsha, 410082, China
| | - Wei Zhu
- National Engineering Research Centre for High Efficiency Grinding, College of Mechanical and Vehicle Engineering, Hunan University, Changsha, 410082, China
| | - Zhongyuan Yang
- National Engineering Research Centre for High Efficiency Grinding, College of Mechanical and Vehicle Engineering, Hunan University, Changsha, 410082, China
| | - Ning He
- National Engineering Research Centre for High Efficiency Grinding, College of Mechanical and Vehicle Engineering, Hunan University, Changsha, 410082, China
| | - Feng Chen
- National Engineering Research Centre for High Efficiency Grinding, College of Mechanical and Vehicle Engineering, Hunan University, Changsha, 410082, China
| | - Xiaoxiao Han
- National Engineering Research Centre for High Efficiency Grinding, College of Mechanical and Vehicle Engineering, Hunan University, Changsha, 410082, China
| | - Kun Zhou
- Singapore Centre for 3D Printing, School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
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Quek J, Vizetto-Duarte C, Teoh SH, Choo Y. Towards Stem Cell Therapy for Critical-Sized Segmental Bone Defects: Current Trends and Challenges on the Path to Clinical Translation. J Funct Biomater 2024; 15:145. [PMID: 38921519 PMCID: PMC11205181 DOI: 10.3390/jfb15060145] [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: 04/24/2024] [Revised: 05/18/2024] [Accepted: 05/24/2024] [Indexed: 06/27/2024] Open
Abstract
The management and reconstruction of critical-sized segmental bone defects remain a major clinical challenge for orthopaedic clinicians and surgeons. In particular, regenerative medicine approaches that involve incorporating stem cells within tissue engineering scaffolds have great promise for fracture management. This narrative review focuses on the primary components of bone tissue engineering-stem cells, scaffolds, the microenvironment, and vascularisation-addressing current advances and translational and regulatory challenges in the current landscape of stem cell therapy for critical-sized bone defects. To comprehensively explore this research area and offer insights for future treatment options in orthopaedic surgery, we have examined the latest developments and advancements in bone tissue engineering, focusing on those of clinical relevance in recent years. Finally, we present a forward-looking perspective on using stem cells in bone tissue engineering for critical-sized segmental bone defects.
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Affiliation(s)
- Jolene Quek
- Developmental Biology and Regenerative Medicine Programme, Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore 308232, Singapore; (J.Q.); (C.V.-D.)
| | - Catarina Vizetto-Duarte
- Developmental Biology and Regenerative Medicine Programme, Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore 308232, Singapore; (J.Q.); (C.V.-D.)
| | - Swee Hin Teoh
- Centre for Advanced Medical Engineering, College of Materials Science and Engineering, Hunan University, Changsha 410012, China
| | - Yen Choo
- Developmental Biology and Regenerative Medicine Programme, Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore 308232, Singapore; (J.Q.); (C.V.-D.)
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Liu C, Ma N, Sun C, Shen X, Li J, Wang C. The effect of magnesium ions synergistic with mineralized collagen on osteogenesis/angiogenesis properties by modulating macrophage polarization in vitroand in vivo. Biomed Mater 2024; 19:035028. [PMID: 38518370 DOI: 10.1088/1748-605x/ad3702] [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: 03/23/2023] [Accepted: 03/22/2024] [Indexed: 03/24/2024]
Abstract
In bone tissue engineering, the bone immunomodulatory properties of biomaterials are critical for bone regeneration, which is a synergistic process involving physiological activities like immune response, osteogenesis, and angiogenesis. The effect of the macrophage immune microenvironment on the osteogenesis and angiogenesis of various material extracts was examined in this experiment using Mg2+and Nano-hydroxyapatite/collagen (nHAC) in both a single application and a combined form. This studyin vitrorevealed that the two compounds combined significantly inhibited the NF-κB signaling pathway and reduced the release of inflammatory factors from macrophages when compared with the extraction phase alone. Additionally, by contributing to the polarization of macrophages towards the M2 type, the combined effects of the two materials can significantly improve osteogenesis/angiogenesis. The results ofin vivoexperiments confirmed that Mg2+/nHAC significantly promoted bone regeneration and angiogenesis. This study offers a promising method for enhancing bone graft material osseointegration.
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Affiliation(s)
- Chang Liu
- Department of Prosthodontics, Second Affiliated Hospital (Stomatological Hospital Affiliated) of Jinzhou Medical University, Jinzhou 121000, People's Republic of China
- Collaborative Innovation Center for Health Promotion of Children and Adolescents of Jinzhou Medical University, Jinzhou 121000, People's Republic of China
| | - Nan Ma
- Department of Prosthodontics, Second Affiliated Hospital (Stomatological Hospital Affiliated) of Jinzhou Medical University, Jinzhou 121000, People's Republic of China
- Collaborative Innovation Center for Health Promotion of Children and Adolescents of Jinzhou Medical University, Jinzhou 121000, People's Republic of China
| | - Changan Sun
- Department of Prosthodontics, Second Affiliated Hospital (Stomatological Hospital Affiliated) of Jinzhou Medical University, Jinzhou 121000, People's Republic of China
| | - Xuecheng Shen
- Department of Prosthodontics, Second Affiliated Hospital (Stomatological Hospital Affiliated) of Jinzhou Medical University, Jinzhou 121000, People's Republic of China
| | - Jinwei Li
- School of Basic Medicine, Jinzhou Medical University, Jinzhou 121000, People's Republic of China
| | - Chengyue Wang
- Department of Prosthodontics, Second Affiliated Hospital (Stomatological Hospital Affiliated) of Jinzhou Medical University, Jinzhou 121000, People's Republic of China
- Collaborative Innovation Center for Health Promotion of Children and Adolescents of Jinzhou Medical University, Jinzhou 121000, People's Republic of China
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Khanmohammadi M, Volpi M, Walejewska E, Olszewska A, Swieszkowski W. Printing of 3D biomimetic structures for the study of bone metastasis: A review. Acta Biomater 2024; 178:24-40. [PMID: 38458512 DOI: 10.1016/j.actbio.2024.02.046] [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: 10/25/2023] [Revised: 02/23/2024] [Accepted: 02/28/2024] [Indexed: 03/10/2024]
Abstract
Bone metastasis primarily occurs when breast, prostate, or lung cancers disseminate tumoral cells into bone tissue, leading to a range of complications in skeletal tissues and, in severe cases, paralysis resulting from spinal cord compression. Unfortunately, our understanding of pathophysiological mechanisms is incomplete and the translation of bone metastasis research into the clinic has been slow, mainly due to the lack of credible ex vivo and in vivo models to study the disease progression. Development of reliable and rational models to study how tumor cells become circulating cells and then invade and sequentially colonize the bone are in great need. Advances in tissue engineering technologies offers reliable 3D tissue alternatives which answer relevant research questions towards the understanding of cancer evolution and key functional properties of metastasis progression as well as prognosis of therapeutic approach. Here we performed an overview of cellular mechanisms involved in bone metastasis including a short summary of normal bone physiology and metastasis initiation and progression. Also, we comprehensively summarized current advances and methodologies in fabrication of reliable bone tumor models based on state-of-the-art printing technologies which recapitulate structural and biological features of native tissue. STATEMENT OF SIGNIFICANCE: This review provides a comprehensive summary of the collective findings in relation to various printed bone metastasis models utilized for investigating specific bone metastasis diseases, related characteristic functions and chemotherapeutic drug screening. These tumoral models are comprehensively evaluated and compared, in terms of their ability to recapitulate physiological metastasis microenvironment. Various biomaterials (natural and synthetic polymers and ceramic based substrates) and printing strategies and design architecture of models used for printing of 3D bone metastasis models are discussed here. This review clearly out-lines current challenges and prospects for 3D printing technologies in bone metastasis research by focusing on the required perspective models for clinical application of these technologies in chemotherapeutic drug screening.
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Affiliation(s)
- Mehdi Khanmohammadi
- Biomaterials Group, Materials Design Division, Faculty of Materials Science and Engineering, Warsaw University of Technology, Wołoska 141, Warsaw 02-507, Poland.
| | - Marina Volpi
- Biomaterials Group, Materials Design Division, Faculty of Materials Science and Engineering, Warsaw University of Technology, Wołoska 141, Warsaw 02-507, Poland
| | - Ewa Walejewska
- Biomaterials Group, Materials Design Division, Faculty of Materials Science and Engineering, Warsaw University of Technology, Wołoska 141, Warsaw 02-507, Poland
| | - Alicja Olszewska
- Biomaterials Group, Materials Design Division, Faculty of Materials Science and Engineering, Warsaw University of Technology, Wołoska 141, Warsaw 02-507, Poland
| | - Wojciech Swieszkowski
- Biomaterials Group, Materials Design Division, Faculty of Materials Science and Engineering, Warsaw University of Technology, Wołoska 141, Warsaw 02-507, Poland.
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7
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Bonato P, Bagno A. Replace or Regenerate? Diverse Approaches to Biomaterials for Treating Corneal Lesions. Biomimetics (Basel) 2024; 9:202. [PMID: 38667213 PMCID: PMC11047895 DOI: 10.3390/biomimetics9040202] [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: 03/04/2024] [Revised: 03/22/2024] [Accepted: 03/25/2024] [Indexed: 04/28/2024] Open
Abstract
The inner structures of the eye are protected by the cornea, which is a transparent membrane exposed to the external environment and subjected to the risk of lesions and diseases, sometimes resulting in impaired vision and blindness. Several eye pathologies can be treated with a keratoplasty, a surgical procedure aimed at replacing the cornea with tissues from human donors. Even though the success rate is high (up to 90% for the first graft in low-risk patients at 5-year follow-up), this approach is limited by the insufficient number of donors and several clinically relevant drawbacks. Alternatively, keratoprosthesis can be applied in an attempt to restore minimal functions of the cornea: For this reason, it is used only for high-risk patients. Recently, many biomaterials of both natural and synthetic origin have been developed as corneal substitutes to restore and replace diseased or injured corneas in low-risk patients. After illustrating the traditional clinical approaches, the present paper aims to review the most innovative solutions that have been recently proposed to regenerate the cornea, avoiding the use of donor tissues. Finally, innovative approaches to biological tissue 3D printing and xenotransplantation will be mentioned.
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Affiliation(s)
| | - Andrea Bagno
- Department of Industrial Engineering, University of Padua, 35131 Padua, Italy
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8
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Wojcik T, Chai F, Hornez V, Raoul G, Hornez JC. Engineering Precise Interconnected Porosity in β-Tricalcium Phosphate (β-TCP) Matrices by Means of Top-Down Digital Light Processing. Biomedicines 2024; 12:736. [PMID: 38672092 PMCID: PMC11047908 DOI: 10.3390/biomedicines12040736] [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: 02/07/2024] [Revised: 03/06/2024] [Accepted: 03/21/2024] [Indexed: 04/28/2024] Open
Abstract
This study evaluated the biocompatibility and accuracy of 3D-printed β-tricalcium phosphate (β-TCP) pure ceramic scaffolds. A specific shaping process associating a digital light processing (DLP) 3D printer and a heat treatment was developed to produce pure β-TCP scaffolds leaving no polymer binder residue. The β-TCP was characterised using X-ray diffraction, infrared spectroscopy and the detection of pollutants. The open porosity of produced matrices and their resorption were studied by hydrostatic weighing and calcium release measures. The biocompatibility of the printed matrices was evaluated by mean of osteoblast cultures. Finally, macroporous cubic matrices were produced. They were scanned using a micro-Computed Tomography scanner (micro-CT scan) and compared to their numeric models. The results demonstrated that DLP 3D printing with heat treatment produces pure β-TCP matrices with enhanced biocompatibility. They also demonstrated the printing accuracy of our technique, associating top-down DLP with the sintering of green parts. Thus, this production process is promising and will enable us to explore complex phosphocalcic matrices with a special focus on the development of a functional vascular network.
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Affiliation(s)
- Thomas Wojcik
- Univ. Lille, CHU Lille, INSERM, Department of Oral and Maxillofacial Surgery, U1008—Advanced Drug Delivery Systems, F-59000 Lille, France;
| | - Feng Chai
- Univ. Lille, CHU Lille, INSERM, U1008, F-59000 Lille, France;
| | | | - Gwenael Raoul
- Univ. Lille, CHU Lille, INSERM, Department of Oral and Maxillofacial Surgery, U1008—Advanced Drug Delivery Systems, F-59000 Lille, France;
| | - Jean-Christophe Hornez
- Département Matériaux et Procédés (DMP), Laboratoire de Matériaux Céramiques et de Mathématiques (CERAMATHS), Université Polytechnique Hauts-de-France, F-59600 Maubeuge, France;
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9
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Goker M, Derici US, Gokyer S, Parmaksiz MG, Kaya B, Can A, Yilgor P. Spatial Growth Factor Delivery for 3D Bioprinting of Vascularized Bone with Adipose-Derived Stem/Stromal Cells as a Single Cell Source. ACS Biomater Sci Eng 2024; 10:1607-1619. [PMID: 38416687 PMCID: PMC10934245 DOI: 10.1021/acsbiomaterials.3c01222] [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: 08/26/2023] [Revised: 02/18/2024] [Accepted: 02/20/2024] [Indexed: 03/01/2024]
Abstract
Encapsulating multiple growth factors within a scaffold enhances the regenerative capacity of engineered bone grafts through their localization and controls the spatiotemporal release profile. In this study, we bioprinted hybrid bone grafts with an inherent built-in controlled growth factor delivery system, which would contribute to vascularized bone formation using a single stem cell source, human adipose-derived stem/stromal cells (ASCs) in vitro. The strategy was to provide precise control over the ASC-derived osteogenesis and angiogenesis at certain regions of the graft through the activity of spatially positioned microencapsulated BMP-2 and VEGF within the osteogenic and angiogenic bioink during bioprinting. The 3D-bioprinted vascularized bone grafts were cultured in a perfusion bioreactor. Results proved localized expression of osteopontin and CD31 by the ASCs, which was made possible through the localized delivery activity of the built-in delivery system. In conclusion, this approach provided a methodology for generating off-the-shelf constructs for vascularized bone regeneration and has the potential to enable single-step, in situ bioprinting procedures for creating vascularized bone implants when applied to bone defects.
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Affiliation(s)
- Meric Goker
- Department
of Biomedical Engineering, Ankara University
Faculty of Engineering, Ankara 06830, Turkey
- Department
of Anatomy and Regenerative Medicine, Royal
College of Surgeons in Ireland, Dublin D02 YN77, Ireland
| | - Utku Serhat Derici
- Department
of Biomedical Engineering, Ankara University
Faculty of Engineering, Ankara 06830, Turkey
| | - Seyda Gokyer
- Department
of Biomedical Engineering, Ankara University
Faculty of Engineering, Ankara 06830, Turkey
| | - Mehmet Goktug Parmaksiz
- Department
of Biomedical Engineering, Ankara University
Faculty of Engineering, Ankara 06830, Turkey
| | - Burak Kaya
- Department
of Plastic, Reconstructive and Aesthetic Surgery, Ankara University Faculty of Medicine, Ankara 06620, Turkey
- Ankara
University Medical Design Research and Application Center, MEDITAM, Ankara 06520, Turkey
| | - Alp Can
- Department
of Histology and Embryology, Ankara University
Faculty of Medicine, Ankara 06230, Turkey
| | - Pinar Yilgor
- Department
of Biomedical Engineering, Ankara University
Faculty of Engineering, Ankara 06830, Turkey
- Ankara
University Medical Design Research and Application Center, MEDITAM, Ankara 06520, Turkey
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10
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Wang B, Ye X, Chen G, Zhang Y, Zeng Z, Liu C, Tan Z, Jie X. Fabrication and properties of PLA/β-TCP scaffolds using liquid crystal display (LCD) photocuring 3D printing for bone tissue engineering. Front Bioeng Biotechnol 2024; 12:1273541. [PMID: 38440328 PMCID: PMC10910430 DOI: 10.3389/fbioe.2024.1273541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Accepted: 01/08/2024] [Indexed: 03/06/2024] Open
Abstract
Introduction: Bone defects remain a thorny challenge that clinicians have to face. At present, scaffolds prepared by 3D printing are increasingly used in the field of bone tissue repair. Polylactic acid (PLA) has good thermoplasticity, processability, biocompatibility, and biodegradability, but the PLA is brittle and has poor osteogenic performance. Beta-tricalcium phosphate (β-TCP) has good mechanical properties and osteogenic induction properties, which can make up for the drawbacks of PLA. Methods: In this study, photocurable biodegradable polylactic acid (bio-PLA) was utilized as the raw material to prepare PLA/β-TCP slurries with varying β-TCP contents (β-TCP dosage at 0%, 10%, 20%, 30%, 35% of the PLA dosage, respectively). The PLA/β-TCP scaffolds were fabricated using liquid crystal display (LCD) light-curing 3D printing technology. The characterization of the scaffolds was assessed, and the biological activity of the scaffold with the optimal compressive strength was evaluated. The biocompatibility of the scaffold was assessed through CCK-8 assays, hemocompatibility assay and live-dead staining experiments. The osteogenic differentiation capacity of the scaffold on MC3T3-E1 cells was evaluated through alizarin red staining, alkaline phosphatase (ALP) detection, immunofluorescence experiments, and RT-qPCR assays. Results: The prepared scaffold possesses a three-dimensional network structure, and with an increase in the quantity of β-TCP, more β-TCP particles adhere to the scaffold surface. The compressive strength of PLA/β-TCP scaffolds exhibits a trend of initial increase followed by decrease with an increasing amount of β-TCP, reaching a maximum value of 52.1 MPa at a 10% β-TCP content. Degradation rate curve results indicate that with the passage of time, the degradation rate of the scaffold gradually increases, and the pH of the scaffold during degradation shows an alkaline tendency. Additionally, Live/dead staining and blood compatibility experiments suggest that the prepared PLA/β-TCP scaffold demonstrates excellent biocompatibility. CCK-8 experiments indicate that the PLA/β-TCP group promotes cell proliferation, and the prepared PLA/β-TCP scaffold exhibits a significant ability to enhance the osteogenic differentiation of MC3T3-E1 cells in vitro. Discussion: 3D printed LCD photocuring PLA/β-TCP scaffolds could improve surface bioactivity and lead to better osteogenesis, which may provide a unique strategy for developing bioactive implants in orthopedic applications.
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Affiliation(s)
- Boqun Wang
- School of Materials and Energy, Guangdong University of Technology, Guangzhou, Guangdong, China
- School of Intelligent Manufacturing, Dongguan Polytechnic, Dongguan, Guangdong, China
| | - Xiangling Ye
- Dongguan Hospital, Guangzhou University of Chinese Medicine, Dongguan, Guangdong, China
- The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Guocai Chen
- Foshan Hospital of Traditional Chinese Medicine, Guangzhou University of Chinese Medicine, Foshan, Guangdong, China
| | - Yongqiang Zhang
- The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Zhikui Zeng
- Affiliated Hospital of Jiangxi University of Chinese Medicine, Nanchang, Jiangxi, China
| | - Cansen Liu
- School of Materials and Energy, Guangdong University of Technology, Guangzhou, Guangdong, China
| | - Zhichao Tan
- Dongguan Hospital, Guangzhou University of Chinese Medicine, Dongguan, Guangdong, China
| | - Xiaohua Jie
- School of Materials and Energy, Guangdong University of Technology, Guangzhou, Guangdong, China
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Größbacher G, Bartolf-Kopp M, Gergely C, Bernal PN, Florczak S, de Ruijter M, Rodriguez NG, Groll J, Malda J, Jungst T, Levato R. Volumetric Printing Across Melt Electrowritten Scaffolds Fabricates Multi-Material Living Constructs with Tunable Architecture and Mechanics. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2300756. [PMID: 37099802 DOI: 10.1002/adma.202300756] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Revised: 04/17/2023] [Indexed: 06/19/2023]
Abstract
Major challenges in biofabrication revolve around capturing the complex, hierarchical composition of native tissues. However, individual 3D printing techniques have limited capacity to produce composite biomaterials with multi-scale resolution. Volumetric bioprinting recently emerged as a paradigm-shift in biofabrication. This ultrafast, light-based technique sculpts cell-laden hydrogel bioresins into 3D structures in a layerless fashion, providing enhanced design freedom over conventional bioprinting. However, it yields prints with low mechanical stability, since soft, cell-friendly hydrogels are used. Herein, the possibility to converge volumetric bioprinting with melt electrowriting, which excels at patterning microfibers, is shown for the fabrication of tubular hydrogel-based composites with enhanced mechanical behavior. Despite including non-transparent melt electrowritten scaffolds in the volumetric printing process, high-resolution bioprinted structures are successfully achieved. Tensile, burst, and bending mechanical properties of printed tubes are tuned altering the electrowritten mesh design, resulting in complex, multi-material tubular constructs with customizable, anisotropic geometries that better mimic intricate biological tubular structures. As a proof-of-concept, engineered tubular structures are obtained by building trilayered cell-laden vessels, and features (valves, branches, fenestrations) that can be rapidly printed using this hybrid approach. This multi-technology convergence offers a new toolbox for manufacturing hierarchical and mechanically tunable multi-material living structures.
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Affiliation(s)
- Gabriel Größbacher
- Department of Orthopaedics, University Medical Center Utrecht, Utrecht University, Utrecht, 3584 CX, The Netherlands
| | - Michael Bartolf-Kopp
- Department of Functional Materials in Medicine and Dentistry, Institute of Functional Materials and Biofabrication (IFB), KeyLab Polymers for Medicine of the Bavarian Polymer Institute (BPI), University of Würzburg, Pleicherwall 2, 97070, Würzburg, Germany
| | - Csaba Gergely
- Department of Functional Materials in Medicine and Dentistry, Institute of Functional Materials and Biofabrication (IFB), KeyLab Polymers for Medicine of the Bavarian Polymer Institute (BPI), University of Würzburg, Pleicherwall 2, 97070, Würzburg, Germany
| | - Paulina Núñez Bernal
- Department of Orthopaedics, University Medical Center Utrecht, Utrecht University, Utrecht, 3584 CX, The Netherlands
| | - Sammy Florczak
- Department of Orthopaedics, University Medical Center Utrecht, Utrecht University, Utrecht, 3584 CX, The Netherlands
| | - Mylène de Ruijter
- Department of Orthopaedics, University Medical Center Utrecht, Utrecht University, Utrecht, 3584 CX, The Netherlands
| | - Núria Ginés Rodriguez
- Department of Orthopaedics, University Medical Center Utrecht, Utrecht University, Utrecht, 3584 CX, The Netherlands
| | - Jürgen Groll
- Department of Functional Materials in Medicine and Dentistry, Institute of Functional Materials and Biofabrication (IFB), KeyLab Polymers for Medicine of the Bavarian Polymer Institute (BPI), University of Würzburg, Pleicherwall 2, 97070, Würzburg, Germany
| | - Jos Malda
- Department of Orthopaedics, University Medical Center Utrecht, Utrecht University, Utrecht, 3584 CX, The Netherlands
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, 3584 CT, The Netherlands
| | - Tomasz Jungst
- Department of Functional Materials in Medicine and Dentistry, Institute of Functional Materials and Biofabrication (IFB), KeyLab Polymers for Medicine of the Bavarian Polymer Institute (BPI), University of Würzburg, Pleicherwall 2, 97070, Würzburg, Germany
| | - Riccardo Levato
- Department of Orthopaedics, University Medical Center Utrecht, Utrecht University, Utrecht, 3584 CX, The Netherlands
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, 3584 CT, The Netherlands
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12
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Huang J, Ma Y, Pang K, Ma X, Zheng Z, Xu D, Xiong K, Yu B, Liao L. Anisotropic Microspheres-Cryogel Composites Loaded with Magnesium l-Threonate Promote Osteogenesis, Angiogenesis, and Neurogenesis for Repairing Bone Defects. Biomacromolecules 2023. [PMID: 37326596 DOI: 10.1021/acs.biomac.3c00243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
To achieve osteogenesis, angiogenesis, and neurogenesis for repairing bone defects, we constructed an anisotropic microspheres-cryogel composite loaded with magnesium l-threonate (MgT). These composites were prepared by the photo-click reaction of norbornene-modified gelatin (GB) in the presence of MgT-loaded microspheres through the bidirectional freezing method. The composites possessed an anisotropic macroporous (around 100 μm) structure and sustained release of bioactive Mg2+, which facilitate vascular ingrowth. These composites could significantly promote osteogenic differentiation of bone marrow mesenchymal stem cells, tubular formation of human umbilical vein vessel endothelial cells, and neuronal differentiation in vitro. Additionally, these composites significantly promoted early vascularization and neurogenesis as well as bone regeneration in the rat femoral condyle defects. In conclusion, owing to the anisotropic macroporous microstructure and bioactive MgT, these composites could simultaneously promote bone, blood vessel, and nerve regeneration, showing great potential for bone tissue engineering.
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Affiliation(s)
- Junhai Huang
- Biomaterials Research Center, School of Biomedical Engineering, Southern Medical University, Guangzhou 510515, Guangdong, China
| | - Yuan Ma
- Division of Orthopaedic Surgery, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou 510515, Guangdong, China
- Guangdong Provincial Key Laboratory of Bone and Cartilage Regenerative Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, Guangdong, China
| | - Kaiteng Pang
- Biomaterials Research Center, School of Biomedical Engineering, Southern Medical University, Guangzhou 510515, Guangdong, China
| | - Xiaochen Ma
- Biomaterials Research Center, School of Biomedical Engineering, Southern Medical University, Guangzhou 510515, Guangdong, China
| | - Zhiyu Zheng
- Biomaterials Research Center, School of Biomedical Engineering, Southern Medical University, Guangzhou 510515, Guangdong, China
| | - Daorong Xu
- Division of Orthopaedic Surgery, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou 510515, Guangdong, China
- Guangdong Provincial Key Laboratory of Bone and Cartilage Regenerative Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, Guangdong, China
| | - Ke Xiong
- Department of Ophthalmology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, Guangdong, China
| | - Bin Yu
- Division of Orthopaedic Surgery, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou 510515, Guangdong, China
- Guangdong Provincial Key Laboratory of Bone and Cartilage Regenerative Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, Guangdong, China
| | - Liqiong Liao
- Biomaterials Research Center, School of Biomedical Engineering, Southern Medical University, Guangzhou 510515, Guangdong, China
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13
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Lim KS, Zreiqat H, Gawlitta D. Special issue: Biofabrication for Orthopedic, Maxillofacial, and Dental Applications. Acta Biomater 2023; 156:1-3. [PMID: 36639170 DOI: 10.1016/j.actbio.2022.12.064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Khoon S Lim
- School of Medical Sciences, The University of Sydney, NSW 2006, Australia; Department of Orthopedic Surgery and Musculoskeletal Medicine, University of Otago Christchurch, Christchurch 8011, New Zealand
| | - Hala Zreiqat
- School of Biomedical Engineering, The University of Sydney, NSW 2006, Australia
| | - Debby Gawlitta
- Department of Oral and Maxillofacial Surgery & Special Dental Care, University Medical Center Utrecht, Utrecht University, Utrecht, 3508 GA, The Netherlands; Regenerative Medicine Center Utrecht, Utrecht, 3584 CT, The Netherlands
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