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Xia Y, Zhang Z, Zhou K, Lin Z, Shu R, Xu Y, Zeng Z, Chang J, Xie Y. Cuprorivaite/hardystonite/alginate composite hydrogel with thermionic effect for the treatment of peri-implant lesion. Regen Biomater 2024; 11:rbae028. [PMID: 38605852 PMCID: PMC11007117 DOI: 10.1093/rb/rbae028] [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: 12/28/2023] [Revised: 02/24/2024] [Accepted: 03/12/2024] [Indexed: 04/13/2024] Open
Abstract
Peri-implant lesion is a grave condition afflicting numerous indi-viduals with dental implants. It results from persistent periodontal bacteria accumulation causing inflammation around the implant site, which can primarily lead to implant loosening and ultimately the implant loss. Early-stage peri-implant lesions exhibit symptoms akin to gum disease, including swelling, redness and bleeding of the gums surrounding the implant. These signs indicate infection and inflammation of the peri-implant tissues, which may result in bone loss and implant failure. To address this problem, a thermionic strategy was applied by designing a cuprorivaite-hardystonite bioceramic/alginate composite hydrogel with photothermal and Cu/Zn/Si multiple ions releasing property. This innovative approach creates a thermionic effect by the release of bioactive ions (Cu2+ and Zn2+ and SiO 3 2 - ) from the composite hydrogel and the mild heat environment though the photothermal effect of the composite hydrogel induced by near-infrared light irradiation. The most distinctive advantage of this thermionic effect is to substantially eliminate periodontal pathogenic bacteria and inhibit inflammation, while simultaneously enhance peri-implant osseointegration. This unique attribute renders the use of this composite hydrogel highly effective in significantly improving the survival rate of implants after intervention in peri-implant lesions, which is a clinical challenge in periodontics. This study reveals application potential of a new biomaterial-based approach for peri-implant lesion, as it not only eliminates the infection and inflammation, but also enhances the osteointegration of the dental implant, which provides theoretical insights and practical guidance to prevent and manage early-stage peri-implant lesion using bioactive functional materials.
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Affiliation(s)
- Yiru Xia
- Department of Periodontology, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- College of Stomatology, Shanghai Jiao Tong University, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, Shanghai, China
| | - Zhaowenbin Zhang
- Joint Centre of Translational Medicine, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
- Zhejiang Engineering Research Center for Tissue Repair Materials, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou 325000, China
- State Key Laboratory of High-Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China
| | - Kecong Zhou
- Department of Periodontology, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- College of Stomatology, Shanghai Jiao Tong University, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, Shanghai, China
| | - Zhikai Lin
- Department of Periodontology, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- College of Stomatology, Shanghai Jiao Tong University, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, Shanghai, China
| | - Rong Shu
- Department of Periodontology, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- College of Stomatology, Shanghai Jiao Tong University, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, Shanghai, China
| | - Yuze Xu
- Joint Centre of Translational Medicine, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
- Zhejiang Engineering Research Center for Tissue Repair Materials, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou 325000, China
- State Key Laboratory of High-Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China
| | - Zhen Zeng
- Joint Centre of Translational Medicine, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
- Zhejiang Engineering Research Center for Tissue Repair Materials, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou 325000, China
- State Key Laboratory of High-Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China
- Key Laboratory of Rehabilitation Medicine in Sichuan Province, West China Hospital, Sichuan University, Chengdu, China
| | - Jiang Chang
- Joint Centre of Translational Medicine, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
- Zhejiang Engineering Research Center for Tissue Repair Materials, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou 325000, China
- State Key Laboratory of High-Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China
| | - Yufeng Xie
- Department of Periodontology, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- College of Stomatology, Shanghai Jiao Tong University, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, Shanghai, China
- Department of Periodontology, Shanghai Stomatological Hospital & School of Stomatology, Fudan University, Shanghai, China
- Shanghai Key Laboratory of Craniomaxillofacial Development and Diseases, Fudan University, Shanghai, China
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Verisqa F, Park JH, Mandakhbayar N, Cha JR, Nguyen L, Kim HW, Knowles JC. In Vivo Osteogenic and Angiogenic Properties of a 3D-Printed Isosorbide-Based Gyroid Scaffold Manufactured via Digital Light Processing. Biomedicines 2024; 12:609. [PMID: 38540222 PMCID: PMC10968148 DOI: 10.3390/biomedicines12030609] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Revised: 02/27/2024] [Accepted: 03/05/2024] [Indexed: 08/26/2024] Open
Abstract
INTRODUCTION Osteogenic and angiogenic properties of synthetic bone grafts play a crucial role in the restoration of bone defects. Angiogenesis is recognised for its support in bone regeneration, particularly in larger defects. The objective of this study is to evaluate the new bone formation and neovascularisation of a 3D-printed isosorbide-based novel CSMA-2 polymer in biomimetic gyroid structures. METHODS The gyroid scaffolds were fabricated by 3D printing CSMA-2 polymers with different hydroxyapatite (HA) filler concentrations using the digital light processing (DLP) method. A small animal subcutaneous model and a rat calvaria critical-size defect model were performed to analyse tissue compatibility, angiogenesis, and new bone formation. RESULTS The in vivo results showed good biocompatibility of the 3D-printed gyroid scaffolds with no visible prolonged inflammatory reaction. Blood vessels were found to infiltrate the pores from day 7 of the implantation. New bone formation was confirmed with positive MT staining and BMP-2 expression, particularly on scaffolds with 10% HA. Bone volume was significantly higher in the CSMA-2 10HA group compared to the sham control group. DISCUSSION AND CONCLUSIONS The results of the subcutaneous model demonstrated a favourable tissue response, including angiogenesis and fibrous tissue, indicative of the early wound healing process. The results from the critical-size defect model showcased new bone formation, as confirmed by micro-CT imaging and immunohistochemistry. The combination of CSMA-2 as the 3D printing material and the gyroid as the 3D structure was found to support essential events in bone healing, specifically angiogenesis and osteogenesis.
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Affiliation(s)
- Fiona Verisqa
- Division of Biomaterials and Tissue Engineering, Eastman Dental Institute, University College London, London NW3 2PF, UK; (F.V.); (L.N.)
| | - Jeong-Hui Park
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan 31116, Republic of Korea; (J.-H.P.); (N.M.); (H.-W.K.)
| | - Nandin Mandakhbayar
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan 31116, Republic of Korea; (J.-H.P.); (N.M.); (H.-W.K.)
- Department of Biochemistry, School of Biomedicine, Mongolian National University of Medical Sciences, Ulaanbaatar 14210, Mongolia
| | - Jae-Ryung Cha
- Department of Chemistry, Dankook University, Cheonan 31116, Republic of Korea;
| | - Linh Nguyen
- Division of Biomaterials and Tissue Engineering, Eastman Dental Institute, University College London, London NW3 2PF, UK; (F.V.); (L.N.)
- UCL Eastman-Korea Dental Medicine Innovation Centre, Dankook University, Cheonan 31116, Republic of Korea
| | - Hae-Won Kim
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan 31116, Republic of Korea; (J.-H.P.); (N.M.); (H.-W.K.)
- UCL Eastman-Korea Dental Medicine Innovation Centre, Dankook University, Cheonan 31116, Republic of Korea
- Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan 31116, Republic of Korea
| | - Jonathan C. Knowles
- Division of Biomaterials and Tissue Engineering, Eastman Dental Institute, University College London, London NW3 2PF, UK; (F.V.); (L.N.)
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan 31116, Republic of Korea; (J.-H.P.); (N.M.); (H.-W.K.)
- UCL Eastman-Korea Dental Medicine Innovation Centre, Dankook University, Cheonan 31116, Republic of Korea
- Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan 31116, Republic of Korea
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Chen L, Zhang S, Duan Y, Song X, Chang M, Feng W, Chen Y. Silicon-containing nanomedicine and biomaterials: materials chemistry, multi-dimensional design, and biomedical application. Chem Soc Rev 2024; 53:1167-1315. [PMID: 38168612 DOI: 10.1039/d1cs01022k] [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: 01/05/2024]
Abstract
The invention of silica-based bioactive glass in the late 1960s has sparked significant interest in exploring a wide range of silicon-containing biomaterials from the macroscale to the nanoscale. Over the past few decades, these biomaterials have been extensively explored for their potential in diverse biomedical applications, considering their remarkable bioactivity, excellent biocompatibility, facile surface functionalization, controllable synthesis, etc. However, to expedite the clinical translation and the unexpected utilization of silicon-composed nanomedicine and biomaterials, it is highly desirable to achieve a thorough comprehension of their characteristics and biological effects from an overall perspective. In this review, we provide a comprehensive discussion on the state-of-the-art progress of silicon-composed biomaterials, including their classification, characteristics, fabrication methods, and versatile biomedical applications. Additionally, we highlight the multi-dimensional design of both pure and hybrid silicon-composed nanomedicine and biomaterials and their intrinsic biological effects and interactions with biological systems. Their extensive biomedical applications span from drug delivery and bioimaging to therapeutic interventions and regenerative medicine, showcasing the significance of their rational design and fabrication to meet specific requirements and optimize their theranostic performance. Additionally, we offer insights into the future prospects and potential challenges regarding silicon-composed nanomedicine and biomaterials. By shedding light on these exciting research advances, we aspire to foster further progress in the biomedical field and drive the development of innovative silicon-composed nanomedicine and biomaterials with transformative applications in biomedicine.
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Affiliation(s)
- Liang Chen
- Materdicine Lab, School of Life Sciences, Shanghai University, Shanghai, 200444, P. R. China.
| | - Shanshan Zhang
- Department of Ultrasound Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, P. R. China
| | - Yanqiu Duan
- Laboratory Center, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200071, P. R. China.
| | - Xinran Song
- Materdicine Lab, School of Life Sciences, Shanghai University, Shanghai, 200444, P. R. China.
| | - Meiqi Chang
- Laboratory Center, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200071, P. R. China.
| | - Wei Feng
- Materdicine Lab, School of Life Sciences, Shanghai University, Shanghai, 200444, P. R. China.
| | - Yu Chen
- Materdicine Lab, School of Life Sciences, Shanghai University, Shanghai, 200444, P. R. China.
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Jiao X, Wu F, Yue X, Yang J, Zhang Y, Qiu J, Ke X, Sun X, Zhao L, Xu C, Li Y, Yang X, Yang G, Gou Z, Zhang L. New insight into biodegradable macropore filler on tuning mechanical properties and bone tissue ingrowth in sparingly dissolvable bioceramic scaffolds. Mater Today Bio 2024; 24:100936. [PMID: 38234459 PMCID: PMC10792586 DOI: 10.1016/j.mtbio.2023.100936] [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: 10/22/2023] [Revised: 12/21/2023] [Accepted: 12/27/2023] [Indexed: 01/19/2024] Open
Abstract
Structural parameters of the implants such as shape, size, and porosity of the pores have been extensively investigated to promote bone tissue repair, however, it is unknown how the pore interconnectivity affects the bone growth behaviors in the scaffolds. Herein we systematically evaluated the effect of biodegradable bioceramics as a secondary phase filler in the macroporous networks on the mechanical and osteogenic behaviors in sparingly dissolvable bioceramic scaffolds. The pure hardystonite (HT) scaffolds with ∼550 & 800 μm in pore sizes were prepared by digital light processing, and then the Sr-doped calcium silicate (SrCSi) bioceramic slurry without and with 30 % organic porogens were intruded into the HT scaffolds with 800 μm pore size and sintered at 1150 °C. It indicated that the organic porogens could endow spherical micropores in the SrCSi filler, and the invasion of the SrCSi component could not only significantly enhance the compressive strength and modulus of the HT-based scaffolds, but also induce osteogenic differentiation of bone marrow mesenchymal stem cells (BMSCs). The pure HT scaffolds showed extremely slow bio-dissolution in Tris buffer after immersion for 8 weeks (∼1 % mass decay); in contrast, the SrCSi filler would readily dissolve into the aqueous medium and produced a steady mass decay (>6 % mass loss). In vivo experiments in rabbit femoral bone defect models showed that the pure HT scaffolds showed bone tissue ingrowth but the bone growth was impeded in the SrCSi-intruded scaffolds within 4 weeks; however, the group with higher porosity of SrCSi filler showed appreciable osteogenesis after 8 weeks of implantation and the whole scaffold was uniformly covered by new bone tissues after 16 weeks. These findings provide some new insights that the pore interconnectivity is not inevitable to impede bone ingrowth with the prolongation of implantation time, and such a highly biodegradable and bioactive filler intrusion strategy may be beneficial for optimizing the performances of scaffolds in bone regenerative medicine applications.
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Affiliation(s)
- Xiaoyi Jiao
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China
- Department of Orthopaedics, The Third Hospital Affiliated to Wenzhou Medical University & Rui'an People's Hospital, Rui'an, 325200, China
| | - Fanghui Wu
- Department of Orthopaedics, The Third Hospital Affiliated to Wenzhou Medical University & Rui'an People's Hospital, Rui'an, 325200, China
| | - Xusong Yue
- Department of Orthopaedics, The Third Hospital Affiliated to Wenzhou Medical University & Rui'an People's Hospital, Rui'an, 325200, China
| | - Jun Yang
- Department of Orthopaedics, The Third Hospital Affiliated to Wenzhou Medical University & Rui'an People's Hospital, Rui'an, 325200, China
| | - Yan Zhang
- Bio-nanomaterials and Regenerative Medicine Research Division, Zhejiang-California International Nanosystem Institute, Zhejiang University, Hangzhou, 310058, China
| | - Jiandi Qiu
- Department of Orthopaedics, The Third Hospital Affiliated to Wenzhou Medical University & Rui'an People's Hospital, Rui'an, 325200, China
| | - Xiurong Ke
- Department of Orthopaedics, The Third Hospital Affiliated to Wenzhou Medical University & Rui'an People's Hospital, Rui'an, 325200, China
| | - Xiaoliang Sun
- Department of Orthopaedics, The Third Hospital Affiliated to Wenzhou Medical University & Rui'an People's Hospital, Rui'an, 325200, China
| | - Liben Zhao
- Department of Orthopaedics, The Third Hospital Affiliated to Wenzhou Medical University & Rui'an People's Hospital, Rui'an, 325200, China
| | - Chuchu Xu
- Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Hangzhou, 310006, China
| | - Yifan Li
- Department of Orthopaedics, The First Affiliated Hospital, School of Medicine of Zhejiang University, Hangzhou, 310003, China
| | - Xianyan Yang
- Bio-nanomaterials and Regenerative Medicine Research Division, Zhejiang-California International Nanosystem Institute, Zhejiang University, Hangzhou, 310058, China
| | - Guojing Yang
- Department of Orthopaedics, The Third Hospital Affiliated to Wenzhou Medical University & Rui'an People's Hospital, Rui'an, 325200, China
| | - Zhongru Gou
- Bio-nanomaterials and Regenerative Medicine Research Division, Zhejiang-California International Nanosystem Institute, Zhejiang University, Hangzhou, 310058, China
| | - Lei Zhang
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China
- Department of Orthopaedics, The Third Hospital Affiliated to Wenzhou Medical University & Rui'an People's Hospital, Rui'an, 325200, China
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Liu H, Chen H, Han Q, Sun B, Liu Y, Zhang A, Fan D, Xia P, Wang J. Recent advancement in vascularized tissue-engineered bone based on materials design and modification. Mater Today Bio 2023; 23:100858. [PMID: 38024843 PMCID: PMC10679779 DOI: 10.1016/j.mtbio.2023.100858] [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: 06/02/2023] [Revised: 09/03/2023] [Accepted: 11/06/2023] [Indexed: 12/01/2023] Open
Abstract
Bone is one of the most vascular network-rich tissues in the body and the vascular system is essential for the development, homeostasis, and regeneration of bone. When segmental irreversible damage occurs to the bone, restoring its vascular system by means other than autogenous bone grafts with vascular pedicles is a therapeutic challenge. By pre-generating the vascular network of the scaffold in vivo or in vitro, the pre-vascularization technique enables an abundant blood supply in the scaffold after implantation. However, pre-vascularization techniques are time-consuming, and in vivo pre-vascularization techniques can be damaging to the body. Critical bone deficiencies may be filled quickly with immediate implantation of a supporting bone tissue engineered scaffold. However, bone tissue engineered scaffolds generally lack vascularization, which requires modification of the scaffold to aid in enhancing internal vascularization. In this review, we summarize the relationship between the vascular system and osteogenesis and use it as a basis to further discuss surgical and cytotechnology-based pre-vascularization strategies and to describe the preparation of vascularized bone tissue engineered scaffolds that can be implanted immediately. We anticipate that this study will serve as inspiration for future vascularized bone tissue engineered scaffold construction and will aid in the achievement of clinical vascularized bone.
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Affiliation(s)
- Hao Liu
- Department of Orthopedic Surgery, The Second Hospital of Jilin University, Changchun 130000, Jilin, China
| | - Hao Chen
- Department of Orthopedic Surgery, The Second Hospital of Jilin University, Changchun 130000, Jilin, China
| | - Qin Han
- Department of Orthopedic Surgery, The Second Hospital of Jilin University, Changchun 130000, Jilin, China
| | - Bin Sun
- Department of Orthopedic Surgery, The Second Hospital of Jilin University, Changchun 130000, Jilin, China
| | - Yang Liu
- Department of Orthopedic Surgery, The Second Hospital of Jilin University, Changchun 130000, Jilin, China
| | - Aobo Zhang
- Department of Orthopedic Surgery, The Second Hospital of Jilin University, Changchun 130000, Jilin, China
| | - Danyang Fan
- Department of Dermatology, The Second Hospital of Jilin University, Changchun 130000, Jilin, China
| | - Peng Xia
- Department of Orthopedic Surgery, The Second Hospital of Jilin University, Changchun 130000, Jilin, China
| | - Jincheng Wang
- Department of Orthopedic Surgery, The Second Hospital of Jilin University, Changchun 130000, Jilin, China
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Zhang Y, He F, Zhang Q, Lu H, Yan S, Shi X. 3D-Printed Flat-Bone-Mimetic Bioceramic Scaffolds for Cranial Restoration. RESEARCH (WASHINGTON, D.C.) 2023; 6:0255. [PMID: 37899773 PMCID: PMC10603392 DOI: 10.34133/research.0255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Accepted: 10/04/2023] [Indexed: 10/31/2023]
Abstract
The limitations of autologous bone grafts necessitate the development of advanced biomimetic biomaterials for efficient cranial defect restoration. The cranial bones are typical flat bones with sandwich structures, consisting of a diploe in the middle region and 2 outer compact tables. In this study, we originally developed 2 types of flat-bone-mimetic β-tricalcium phosphate bioceramic scaffolds (Gyr-Comp and Gyr-Tub) by high-precision vat-photopolymerization-based 3-dimensional printing. Both scaffolds had 2 outer layers and an inner layer with gyroid pores mimicking the diploe structure. The outer layers of Gyr-Comp scaffolds simulated the low porosity of outer tables, while those of Gyr-Tub scaffolds mimicked the tubular pore structure in the tables of flat bones. The Gyr-Comp and Gyr-Tub scaffolds possessed higher compressive strength and noticeably promoted in vitro cell proliferation, osteogenic differentiation, and angiogenic activities compared with conventional scaffolds with cross-hatch structures. After implantation into rabbit cranial defects for 12 weeks, Gyr-Tub achieved the best repairing effects by accelerating the generation of bone tissues and blood vessels. This work provides an advanced strategy to prepare biomimetic biomaterials that fit the structural and functional needs of efficacious bone regeneration.
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Affiliation(s)
- Yihang Zhang
- School of Electromechanical Engineering,
Guangdong University of Technology, Guangzhou 510006, P. R. China
| | - Fupo He
- School of Electromechanical Engineering,
Guangdong University of Technology, Guangzhou 510006, P. R. China
| | - Qiang Zhang
- School of Materials Science and Engineering,
South China University of Technology, Guangzhou 510641, P. R. China
| | - Haotian Lu
- Peking Union Medical College Graduate School, Beijing 100730, P. R. China
| | - Shengtao Yan
- Peking Union Medical College Graduate School, Beijing 100730, P. R. China
- Department of Emergency,
China-Japan Friendship Hospital, Beijing 100029, P. R. China
| | - Xuetao Shi
- School of Materials Science and Engineering,
South China University of Technology, Guangzhou 510641, P. R. China
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Yue X, Zhao L, Yang J, Jiao X, Wu F, Zhang Y, Li Y, Qiu J, Ke X, Sun X, Yang X, Gou Z, Zhang L, Yang G. Comparison of osteogenic capability of 3D-printed bioceramic scaffolds and granules with different porosities for clinical translation. Front Bioeng Biotechnol 2023; 11:1260639. [PMID: 37840661 PMCID: PMC10569306 DOI: 10.3389/fbioe.2023.1260639] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Accepted: 09/08/2023] [Indexed: 10/17/2023] Open
Abstract
Pore parameters, structural stability, and filler morphology of artificial implants are key factors influencing the process of bone tissue repair. However, the extent to which each of these factors contributes to bone formation in the preparation of porous bioceramics is currently unclear, with the two often being coupled. Herein, we prepared magnesium-doped wollastonite (Mg-CSi) scaffolds with 57% and 70% porosity (57-S and 70-S) via a 3D printing technique. Meanwhile, the bioceramic granules (57-G and 70-G) with curved pore topography (IWP) were prepared by physically disrupting the 57-S and 70-S scaffolds, respectively, and compared for in vivo osteogenesis at 4, 10, and 16 weeks. The pore parameters and the mechanical and biodegradable properties of different porous bioceramics were characterized systematically. The four groups of porous scaffolds and granules were then implanted into a rabbit femoral defect model to evaluate the osteogenic behavior in vivo. 2D/3D reconstruction and histological analysis showed that significant bone tissue production was visible in the central zone of porous granule groups at the early stage but bone tissue ingrowth was slower in the porous scaffold groups. The bone tissue regeneration and reconstruction capacity were stronger after 10 weeks, and the porous architecture of the 57-S scaffold was maintained stably at 16 weeks. These experimental results demonstrated that the structure-collapsed porous bioceramic is favorable for early-stage osteoconduction and that the 3D topological scaffolds may provide more structural stability for bone tissue growth for a long-term stage. These findings provide new ideas for the selection of different types of porous bioceramics for clinical bone repair.
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Affiliation(s)
- Xusong Yue
- Department of Orthopaedics, Rui’an People’s Hospital, The Third Hospital Affiliated to Wenzhou Medical University, Wenzhou, China
| | - Liben Zhao
- Department of Orthopaedics, Rui’an People’s Hospital, The Third Hospital Affiliated to Wenzhou Medical University, Wenzhou, China
| | - Jun Yang
- Department of Orthopaedics, Rui’an People’s Hospital, The Third Hospital Affiliated to Wenzhou Medical University, Wenzhou, China
| | - Xiaoyi Jiao
- Department of Orthopaedics, Rui’an People’s Hospital, The Third Hospital Affiliated to Wenzhou Medical University, Wenzhou, China
| | - Fanghui Wu
- Department of Orthopaedics, Rui’an People’s Hospital, The Third Hospital Affiliated to Wenzhou Medical University, Wenzhou, China
| | - Yan Zhang
- Bio-Nanomaterials and Regenerative Medicine Research Division, Zhejiang-California International Nanosystem Institute, Zhejiang University, Hangzhou, China
| | - Yifan Li
- Department of Orthopaedics, The First Affiliated Hospital, School of Medicine of Zhejiang University, Hangzhou, China
| | - Jiandi Qiu
- Department of Orthopaedics, Rui’an People’s Hospital, The Third Hospital Affiliated to Wenzhou Medical University, Wenzhou, China
| | - Xiurong Ke
- Department of Orthopaedics, Rui’an People’s Hospital, The Third Hospital Affiliated to Wenzhou Medical University, Wenzhou, China
| | - Xiaoliang Sun
- Department of Orthopaedics, Rui’an People’s Hospital, The Third Hospital Affiliated to Wenzhou Medical University, Wenzhou, China
| | - Xianyan Yang
- Bio-Nanomaterials and Regenerative Medicine Research Division, Zhejiang-California International Nanosystem Institute, Zhejiang University, Hangzhou, China
| | - Zhongru Gou
- Bio-Nanomaterials and Regenerative Medicine Research Division, Zhejiang-California International Nanosystem Institute, Zhejiang University, Hangzhou, China
| | - Lei Zhang
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Guojing Yang
- Department of Orthopaedics, Rui’an People’s Hospital, The Third Hospital Affiliated to Wenzhou Medical University, Wenzhou, China
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Li Y, Li J, Jiang S, Zhong C, Zhao C, Jiao Y, Shen J, Chen H, Ye M, Zhou J, Yang X, Gou Z, Xu S, Shen M. The design of strut/TPMS-based pore geometries in bioceramic scaffolds guiding osteogenesis and angiogenesis in bone regeneration. Mater Today Bio 2023; 20:100667. [PMID: 37273795 PMCID: PMC10238647 DOI: 10.1016/j.mtbio.2023.100667] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 05/06/2023] [Accepted: 05/14/2023] [Indexed: 06/06/2023] Open
Abstract
The pore morphology design of bioceramic scaffolds plays a substantial role in the induction of bone regeneration. Specifically, the effects of different scaffold pore geometry designs on angiogenesis and new bone regeneration remain unclear. Therefore, we fabricated Mg/Sr co-doped wollastonite bioceramic (MS-CSi) scaffolds with three different pore geometries (gyroid, cylindrical, and cubic) and compared their effects on osteogenesis and angiogenesis in vitro and in vivo. The MS-CSi scaffolds were fabricated by digital light processing (DLP) printing technology. The pore structure, mechanical properties, and degradation rate of the scaffolds were investigated. Cell proliferation on the scaffolds was evaluated using CCK-8 assays while angiogenesis was assessed using Transwell migration assays, tube formation assays, and immunofluorescence staining. The underlying mechanism was explored by western blotting. Osteogenic ability of scaffolds was evaluated by alkaline phosphatase (ALP) staining, western blotting, and qRT-PCR. Subsequently, a rabbit femoral defect model was prepared to compare differences in the scaffolds in osteogenesis and angiogenesis in vivo. Cell culture experiments showed that the gyroid pore scaffold downregulated YAP/TAZ phosphorylation and enhanced YAP/TAZ nuclear translocation, thereby promoting proliferation, migration, tube formation, and high expression of CD31 in human umbilical vein endothelial cells (HUVECs) while strut-based (cubic and cylindrical pore) scaffolds promoted osteogenic differentiation in bone marrow mesenchymal stem cells and upregulation of osteogenesis-related genes. The gyroid pore scaffolds were observed to facilitate early angiogenesis in the femoral-defect model rabbits while the strut-based scaffolds promoted the formation of new bone tissue. Our study indicated that the pore geometries and pore curvature characteristics of bioceramic scaffolds can be precisely tuned for enhancing both osteogenesis and angiogenesis. These results may provide new ideas for the design of bioceramic scaffolds for bone regeneration.
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Affiliation(s)
- Yifan Li
- Department of Orthopedics, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, PR China
| | - Jiafeng Li
- Department of Orthopedics, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, PR China
| | - Shuai Jiang
- Department of Orthopedics, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, PR China
| | - Cheng Zhong
- Department of Orthopedics, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, PR China
| | - Chenchen Zhao
- Department of Orthopedics, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, PR China
| | - Yang Jiao
- Department of Orthopedics, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, PR China
| | - Jian Shen
- Department of Orthopedics, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, PR China
| | - Huaizhi Chen
- Department of Orthopedics, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, PR China
| | - Meihan Ye
- Department of Orthopedics, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, PR China
| | - Jiayu Zhou
- Affiliated Mental Health Centre & Hangzhou Seventh People's Hospital, Zhejiang University School of Medicine, Hangzhou, 310013, PR China
| | - Xianyan Yang
- Bio-nanomaterials and Regenerative Medicine Research Division, Zhejiang-California International Nanosystem Institute, Zhejiang University, Hangzhou, 310058, PR China
| | - Zhongru Gou
- Bio-nanomaterials and Regenerative Medicine Research Division, Zhejiang-California International Nanosystem Institute, Zhejiang University, Hangzhou, 310058, PR China
| | - Sanzhong Xu
- Department of Orthopedics, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, PR China
| | - Miaoda Shen
- Department of Orthopedics, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, PR China
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9
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Wang Z, Cao W, Wu F, Ke X, Wu X, Zhou T, Yang J, Yang G, Zhong C, Gou Z, Gao C. A triphasic biomimetic BMSC-loaded scaffold for osteochondral integrated regeneration in rabbits and pigs. Biomater Sci 2023; 11:2924-2934. [PMID: 36892448 DOI: 10.1039/d2bm02148j] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/27/2023]
Abstract
Osteochondral tissue involves cartilage, calcified cartilage and subchondral bone. These tissues differ significantly in chemical compositions, structures, mechanical properties and cellular compositions. Therefore, the repairing materials face different osteochondral tissue regeneration needs and rates. In this study, we fabricated an osteochondral tissue-inspired triphasic material, which was composed of a poly(lactide-co-glycolide) (PLGA) scaffold loaded with fibrin hydrogel, bone marrow stromal cells (BMSCs) and transforming growth factor-β1 (TGF-β1) for cartilage tissue, a bilayer poly(L-lactide-co-caprolactone) (PLCL)-fibrous membrane loaded with chondroitin sulfate and bioactive glass, respectively, for calcified cartilage, and a 3D-printed calcium silicate ceramic scaffold for subchondral bone. The triphasic scaffold was press-fitted into the osteochondral defects in rabbit (cylindrical defects with a diameter of 4 mm and a depth of 4 mm) and minipig knee joints (cylindrical defects with a diameter of 10 mm and a depth of 6 mm). The μ-CT and histological analysis showed that the triphasic scaffold was partly degraded, and significantly promoted the regeneration of hyaline cartilage after they were implanted in vivo. The superficial cartilage showed good recovery and uniformity. The calcified cartilage layer (CCL) fibrous membrane was in favor of a better cartilage regeneration morphology, a continuous cartilage structure and less fibrocartilage tissue formation. The bone tissue grew into the material, while the CCL membrane limited bone overgrowth. The newly generated osteochondral tissues were well integrated with the surrounding tissues too.
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Affiliation(s)
- Zhaoyi Wang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, International Research Center for X Polymers, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310058, China.
| | - Wangbei Cao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, International Research Center for X Polymers, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310058, China.
| | - Fanghui Wu
- Department of Orthopaedic Surgery of the third Hospital Affiliated to Wenzhou Medical University, Rui'an 325200, China
| | - Xiurong Ke
- Department of Orthopaedic Surgery of the third Hospital Affiliated to Wenzhou Medical University, Rui'an 325200, China
| | - Xinyu Wu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, International Research Center for X Polymers, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310058, China.
| | - Tong Zhou
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, International Research Center for X Polymers, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310058, China.
| | - Jun Yang
- Department of Orthopaedic Surgery of the third Hospital Affiliated to Wenzhou Medical University, Rui'an 325200, China
| | - Guojing Yang
- Department of Orthopaedic Surgery of the third Hospital Affiliated to Wenzhou Medical University, Rui'an 325200, China
| | - Cheng Zhong
- Department of Orthopedics, the First Affiliated Hospital, School of Medicine of Zhejiang University, Hangzhou 310003, China
| | - Zhongru Gou
- Bio-nanomaterials and Regenerative Medicine Research Division, Zhejiang-California International Nanosystem Institute, Zhejiang University, Hangzhou 310058, China.
| | - Changyou Gao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, International Research Center for X Polymers, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310058, China. .,Center for Healthcare Materials, Shaoxing Institute, Zhejiang University, Shaoxing 312035, China.,Department of Orthopedics, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, China
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10
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Shen M, Li Y, Lu F, Gou Y, Zhong C, He S, Zhao C, Yang G, Zhang L, Yang X, Gou Z, Xu S. Bioceramic scaffolds with triply periodic minimal surface architectures guide early-stage bone regeneration. Bioact Mater 2023; 25:374-386. [PMID: 36865987 PMCID: PMC9972395 DOI: 10.1016/j.bioactmat.2023.02.012] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Revised: 01/18/2023] [Accepted: 02/13/2023] [Indexed: 02/19/2023] Open
Abstract
The pore architecture of porous scaffolds is a critical factor in osteogenesis, but it is a challenge to precisely configure strut-based scaffolds because of the inevitable filament corner and pore geometry deformation. This study provides a pore architecture tailoring strategy in which a series of Mg-doped wollastonite scaffolds with fully interconnected pore networks and curved pore architectures called triply periodic minimal surfaces (TPMS), which are similar to cancellous bone, are fabricated by a digital light processing technique. The sheet-TPMS pore geometries (s-Diamond, s-Gyroid) contribute to a 3‒4-fold higher initial compressive strength and 20%-40% faster Mg-ion-release rate compared to the other-TPMS scaffolds, including Diamond, Gyroid, and the Schoen's I-graph-Wrapped Package (IWP) in vitro. However, we found that Gyroid and Diamond pore scaffolds can significantly induce osteogenic differentiation of bone marrow mesenchymal stem cells (BMSCs). Analyses of rabbit experiments in vivo show that the regeneration of bone tissue in the sheet-TPMS pore geometry is delayed; on the other hand, Diamond and Gyroid pore scaffolds show notable neo-bone tissue in the center pore regions during the early stages (3-5 weeks) and the bone tissue uniformly fills the whole porous network after 7 weeks. Collectively, the design methods in this study provide an important perspective for optimizing the pore architecture design of bioceramic scaffolds to accelerate the rate of osteogenesis and promote the clinical translation of bioceramic scaffolds in the repair of bone defects.
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Affiliation(s)
- Miaoda Shen
- Department of Orthopedics, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Yifan Li
- Department of Orthopedics, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Fengling Lu
- Bio-nanomaterials and Regenerative Medicine Research Division, Zhejiang-California International Nanosystem Institute, Zhejiang University, Hangzhou, 310058, China
| | - Yahui Gou
- Zhejiang University-University of Edinburgh Institute, Zhejiang University, Haining, 314499, China
| | - Cheng Zhong
- Department of Orthopedics, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Shukun He
- Department of Orthopedics, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Chenchen Zhao
- Department of Orthopedics, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Guojing Yang
- Department of Orthopaedics, The Third Hospital Affiliated to Wenzhou Medical University & Rui'an People's Hospital, Rui'an, 325200, China
| | - Lei Zhang
- Department of Orthopaedics, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Xianyan Yang
- Bio-nanomaterials and Regenerative Medicine Research Division, Zhejiang-California International Nanosystem Institute, Zhejiang University, Hangzhou, 310058, China
| | - Zhongru Gou
- Bio-nanomaterials and Regenerative Medicine Research Division, Zhejiang-California International Nanosystem Institute, Zhejiang University, Hangzhou, 310058, China,Corresponding author.
| | - Sanzhong Xu
- Department of Orthopedics, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China,Corresponding author.
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11
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Xiao X, Liu Z, Shu R, Wang J, Zhu X, Bai D, Lin H. Periodontal bone regeneration with a degradable thermoplastic HA/PLCL bone graft. J Mater Chem B 2023; 11:772-786. [PMID: 36444735 DOI: 10.1039/d2tb02123d] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Strategic bone grafts are required to regenerate periodontal bone defects owing to limited self-healing. Current bioceramic particle or deproteinized bovine bone (DBB) products are not able to ideally meet clinical requirements, such as insufficient operability and slow degradation rates. Herein, a strong-interacted bone graft was designed and synthesized by modifying hydroxyapatite (HA) with a lactide-caprolactone copolymer (PLCL) to improve component homogeneity and mechanical properties. The physical-chemical analysis indicated that HA particles were homogenously distributed in HA/PLCL bone grafts, possessed outstanding thermoplasticity, and facilitated clinic operability and initial mechanical support. The in vitro study suggested that HA/PLCL bone graft degraded in a spatiotemporal model. Micropores were formed on the non-porous surface at the beginning, and interconnected porous structures were gradually generated. Furthermore, HA/PLCL bone grafts exhibited excellent biocompatibility and osteogenic ability as revealed in vitro cell culture and in vivo animal experiments. When applied to rat periodontal bone defects, the HA/PLCL bone graft showed a non-inferior bone regeneration compared to the commercial DBB. This study proposes a potential bone graft for periodontal bone repair with thermoplastic, spatiotemporal degraded, and osteogenic characteristics.
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Affiliation(s)
- Xueling Xiao
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, China.
| | - Zhanhong Liu
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, Sichuan 610064, China. .,College of Biomedical Engineering, Sichuan University, Chengdu, Sichuan 610064, China
| | - Rui Shu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, China.
| | - Jiangyue Wang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, China. .,Department of Orthodontics, Shanghai Stomatological Hospital & School of Stomatology, Fudan University, Shanghai 200001, China
| | - Xiangdong Zhu
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, Sichuan 610064, China. .,College of Biomedical Engineering, Sichuan University, Chengdu, Sichuan 610064, China
| | - Ding Bai
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, China.
| | - Hai Lin
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, Sichuan 610064, China. .,College of Biomedical Engineering, Sichuan University, Chengdu, Sichuan 610064, China
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12
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Zhang H, Zhang W, Qiu H, Zhang G, Li X, Qi H, Guo J, Qian J, Shi X, Gao X, Shi D, Zhang D, Gao R, Ding J. A Biodegradable Metal-Polymer Composite Stent Safe and Effective on Physiological and Serum-Containing Biomimetic Conditions. Adv Healthc Mater 2022; 11:e2201740. [PMID: 36057108 DOI: 10.1002/adhm.202201740] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 08/25/2022] [Indexed: 01/28/2023]
Abstract
The new-generation coronary stents are expected to be biodegradable, and then the biocompatibility along with biodegradation becomes more challenging. It is a critical issue to choose appropriate biomimetic conditions to evaluate biocompatibility. Compared with other candidates for biodegradable stents, iron-based materials are of high mechanical strength, yet have raised more concerns about biodegradability and biocompatibility. Herein, a metal-polymer composite strategy is applied to accelerate the degradation of iron-based stents in vitro and in a porcine model. Furthermore, it is found that serum, the main environment of vascular stents, ensured the safety of iron corrosion through its antioxidants. This work highlights the importance of serum, particularly albumin, for an in vitro condition mimicking blood-related physiological condition, when reactive oxygen species, inflammatory response, and neointimal hyperplasia are concerned. The resultant metal-polymer composite stent is implanted into a patient in clinical research via interventional treatment, and the follow-up confirms its safety, efficacy, and appropriate biodegradability.
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Affiliation(s)
- Hongjie Zhang
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai, 200438, P. R. China
| | - Wanqian Zhang
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai, 200438, P. R. China.,National and Local Joint Engineering Laboratory of Interventional Medical Biotechnology and System, Biotyx Medical (Shenzhen) Co., Ltd, Lifetech Scientific (Shenzhen) Co. Ltd., Shenzhen, 518110, P. R. China
| | - Hong Qiu
- Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100037, P. R. China
| | - Gui Zhang
- National and Local Joint Engineering Laboratory of Interventional Medical Biotechnology and System, Biotyx Medical (Shenzhen) Co., Ltd, Lifetech Scientific (Shenzhen) Co. Ltd., Shenzhen, 518110, P. R. China
| | - Xin Li
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai, 200438, P. R. China
| | - Haiping Qi
- National and Local Joint Engineering Laboratory of Interventional Medical Biotechnology and System, Biotyx Medical (Shenzhen) Co., Ltd, Lifetech Scientific (Shenzhen) Co. Ltd., Shenzhen, 518110, P. R. China
| | - Jingzhen Guo
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai, 200438, P. R. China
| | - Jie Qian
- Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100037, P. R. China
| | - Xiaoli Shi
- National and Local Joint Engineering Laboratory of Interventional Medical Biotechnology and System, Biotyx Medical (Shenzhen) Co., Ltd, Lifetech Scientific (Shenzhen) Co. Ltd., Shenzhen, 518110, P. R. China
| | - Xian Gao
- National and Local Joint Engineering Laboratory of Interventional Medical Biotechnology and System, Biotyx Medical (Shenzhen) Co., Ltd, Lifetech Scientific (Shenzhen) Co. Ltd., Shenzhen, 518110, P. R. China
| | - Daokun Shi
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai, 200438, P. R. China
| | - Deyuan Zhang
- National and Local Joint Engineering Laboratory of Interventional Medical Biotechnology and System, Biotyx Medical (Shenzhen) Co., Ltd, Lifetech Scientific (Shenzhen) Co. Ltd., Shenzhen, 518110, P. R. China
| | - Runlin Gao
- Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100037, P. R. China
| | - Jiandong Ding
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai, 200438, P. R. China
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13
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Guerrero J, Ghayor C, Bhattacharya I, Weber FE. Osteoconductivity of bone substitutes with filament-based microarchitectures: Influence of directionality, filament dimension, and distance. Int J Bioprint 2022; 9:626. [PMID: 36844242 PMCID: PMC9947381 DOI: 10.18063/ijb.v9i1.626] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Accepted: 09/21/2022] [Indexed: 11/23/2022] Open
Abstract
63Additive manufacturing can be applied to produce personalized bone substitutes. At present, the major three-dimensional (3D) printing methodology relies on filament extrusion. In bioprinting, the extruded filament consists mainly of hydrogels, in which growth factors and cells are embedded. In this study, we used a lithography-based 3D printing methodology to mimic filament-based microarchitectures by varying the filament dimension and the distance between the filaments. In the first set of scaffolds, all filaments were aligned toward bone ingrowth direction. In a second set of scaffolds, which were derived from the identical microarchitecture but tilted by 90°, only 50% of the filaments were in line with the bone ingrowth direction. Testing of all tricalcium phosphate-based constructs for osteoconduction and bone regeneration was performed in a rabbit calvarial defect model. The results revealed that if all filaments are in line with the direction of bone ingrowth, filament size and distance (0.40-1.25 mm) had no significant influence on defect bridging. However, with 50% of filaments aligned, osteoconductivity declined significantly with an increase in filament dimension and distance. Therefore, for filament-based 3D- or bio-printed bone substitutes, the distance between the filaments should be 0.40 to 0.50 mm irrespective of the direction of bone ingrowth or up to 0.83 mm if perfectly aligned to it.
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Affiliation(s)
- Julien Guerrero
- Center of Dental Medicine, Oral Biotechnology & Bioengineering, University of Zurich, 8032 Zurich, Switzerland
| | - Chafik Ghayor
- Center of Dental Medicine, Oral Biotechnology & Bioengineering, University of Zurich, 8032 Zurich, Switzerland
| | - Indranil Bhattacharya
- Center of Dental Medicine, Oral Biotechnology & Bioengineering, University of Zurich, 8032 Zurich, Switzerland
| | - Franz E. Weber
- Center of Dental Medicine, Oral Biotechnology & Bioengineering, University of Zurich, 8032 Zurich, Switzerland,CABMM, Center for Applied Biotechnology and Molecular Medicine, University of Zurich, 8057 Zurich, Switzerland,Corresponding author: Franz E. Weber ()
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