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Liu Y, Shen Z, Xu Y, Zhu YW, Chen W, Qiu J. Layer-by-layer self-assembly of PLL/CPP-ACP multilayer on SLA titanium surface: Enhancing osseointegration and antibacterial activity in vitro and in vivo. Colloids Surf B Biointerfaces 2024; 240:113966. [PMID: 38781846 DOI: 10.1016/j.colsurfb.2024.113966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2023] [Revised: 05/03/2024] [Accepted: 05/11/2024] [Indexed: 05/25/2024]
Abstract
Dental Implants are expected to possess both excellent osteointegration and antibacterial activity because poor osseointegration and infection are two major causes of titanium implant failure. In this study, we constructed layer-by-layer self-assembly films consisting of anionic casein phosphopeptides-amorphous calcium phosphate (CPP-ACP) and cationic poly (L-lysine) (PLL) on sandblasted and acid etched (SLA) titanium surfaces and evaluated their osseointegration and antibacterial performance in vitro and in vivo. The surface properties were examined, including microstructure, elemental composition, wettability, and Ca2+ ion release. The impact the surfaces had on the adhesion, proliferation and differentiation abilities of MC3T3-E1 cells were investigated, as well as the material's antibacterial performance after exposure to the oral microorganisms such as Porphyromonas gingivalis (P. g) and Actinobacillus actinomycetemcomitans (A. a). For the in vivo studies, SLA and Ti (PLL/CA-3.0)10 implants were inserted into the extraction socket immediately after extracting the rabbit mandibular anterior teeth with or without exposure to mixed bacteria solution (P. g & A. a). Three rabbits in each group were sacrificed to collect samples at 2, 4, and 6 weeks of post-implantation, respectively. Radiographic and histomorphometry examinations were performed to evaluate the implant osseointegration. The modified titanium surfaces were successfully prepared and appeared as a compact nano-structure with high hydrophilicity. In particular, the Ti (PLL/CA-3.0)10 surface was able to continuously release Ca2+ ions. From the in vitro and in vivo studies, the modified titanium surfaces expressed enhanced osteogenic and antibacterial properties. Hence, the PLL/CPP-ACP multilayer coating on titanium surfaces was constructed via a layer-by-layer self-assembly technology, possibly improving the biofunctionalization of Ti-based dental implants.
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Affiliation(s)
- Yao Liu
- Department of Oral Implantology, Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, China; Jiangsu Province Key Laboratory of Oral Diseases, Nanjing, China
| | - Zhe Shen
- Department of Oral Implantology, Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, China; Jiangsu Province Key Laboratory of Oral Diseases, Nanjing, China
| | - Yan Xu
- Department of Oral Implantology, Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, China; Jiangsu Province Key Laboratory of Oral Diseases, Nanjing, China
| | - Ya-Wen Zhu
- Department of Oral Implantology, Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, China; Jiangsu Province Key Laboratory of Oral Diseases, Nanjing, China
| | - Wei Chen
- Department of Oral Implantology, Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, China; Jiangsu Province Key Laboratory of Oral Diseases, Nanjing, China
| | - Jing Qiu
- Department of Oral Implantology, Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, China; Jiangsu Province Key Laboratory of Oral Diseases, Nanjing, China; Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, China.
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Li J, Zheng Y, Yu Z, Kankala RK, Lin Q, Shi J, Chen C, Luo K, Chen A, Zhong Q. Surface-modified titanium and titanium-based alloys for improved osteogenesis: A critical review. Heliyon 2024; 10:e23779. [PMID: 38223705 PMCID: PMC10784177 DOI: 10.1016/j.heliyon.2023.e23779] [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: 04/30/2023] [Revised: 12/05/2023] [Accepted: 12/13/2023] [Indexed: 01/16/2024] Open
Abstract
As implantable materials, titanium, and its alloys have garnered enormous interest from researchers for dental and orthopedic procedures. Despite their success in wide clinical applications, titanium, and its alloys fail to stimulate osteogenesis, resulting in poor bonding strength with surrounding bone tissue. Optimizing the surface topology and altered compositions of titanium and titanium-based alloys substantially promotes peri-implant bone regeneration. This review summarizes the utilization and importance of various osteogenesis components loaded onto titanium and its alloys. Further, different surface-modification methods and the release efficacy of loaded substances are emphasized. Finally, we summarize the article with prospects. We believe that further investigation studies must focus on identifying novel loading components, exploring various innovative, optimized surface-modification methods, and developing a sustained-release system on implant surfaces to improve peri-implant bone formation.
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Affiliation(s)
- Jingling Li
- Fujian Key Laboratory of Oral Diseases & Fujian Provincial Engineering Research Center of Oral Biomaterial & Stomatological Key Laboratory of Fujian College and University, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, 350002, China
- Institute of Stomatology & Laboratory of Oral Tissue Engineering, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, 350002, China
| | - Yaxin Zheng
- Fujian Key Laboratory of Oral Diseases & Fujian Provincial Engineering Research Center of Oral Biomaterial & Stomatological Key Laboratory of Fujian College and University, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, 350002, China
- Institute of Stomatology & Laboratory of Oral Tissue Engineering, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, 350002, China
| | - Zihe Yu
- Fujian Key Laboratory of Oral Diseases & Fujian Provincial Engineering Research Center of Oral Biomaterial & Stomatological Key Laboratory of Fujian College and University, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, 350002, China
- Institute of Stomatology & Laboratory of Oral Tissue Engineering, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, 350002, China
| | - Ranjith Kumar Kankala
- Institute of Biomaterials and Tissue Engineering, Fujian Provincial Key Laboratory of Biochemical Technology, Huaqiao University, Xiamen, 361021, China
| | - Qianying Lin
- Fujian Key Laboratory of Oral Diseases & Fujian Provincial Engineering Research Center of Oral Biomaterial & Stomatological Key Laboratory of Fujian College and University, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, 350002, China
- Institute of Stomatology & Laboratory of Oral Tissue Engineering, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, 350002, China
| | - Jingbo Shi
- Fujian Key Laboratory of Oral Diseases & Fujian Provincial Engineering Research Center of Oral Biomaterial & Stomatological Key Laboratory of Fujian College and University, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, 350002, China
- Institute of Stomatology & Laboratory of Oral Tissue Engineering, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, 350002, China
| | - Chao Chen
- Fujian Key Laboratory of Oral Diseases & Fujian Provincial Engineering Research Center of Oral Biomaterial & Stomatological Key Laboratory of Fujian College and University, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, 350002, China
- Institute of Stomatology & Laboratory of Oral Tissue Engineering, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, 350002, China
| | - Kai Luo
- Fujian Key Laboratory of Oral Diseases & Fujian Provincial Engineering Research Center of Oral Biomaterial & Stomatological Key Laboratory of Fujian College and University, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, 350002, China
- Institute of Stomatology & Laboratory of Oral Tissue Engineering, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, 350002, China
| | - Aizheng Chen
- Institute of Biomaterials and Tissue Engineering, Fujian Provincial Key Laboratory of Biochemical Technology, Huaqiao University, Xiamen, 361021, China
| | - Quan Zhong
- Fujian Key Laboratory of Oral Diseases & Fujian Provincial Engineering Research Center of Oral Biomaterial & Stomatological Key Laboratory of Fujian College and University, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, 350002, China
- Institute of Stomatology & Laboratory of Oral Tissue Engineering, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, 350002, China
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Jiang P, Zhang Y, Hu R, Shi B, Zhang L, Huang Q, Yang Y, Tang P, Lin C. Advanced surface engineering of titanium materials for biomedical applications: From static modification to dynamic responsive regulation. Bioact Mater 2023; 27:15-57. [PMID: 37035422 PMCID: PMC10074421 DOI: 10.1016/j.bioactmat.2023.03.006] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 03/10/2023] [Accepted: 03/10/2023] [Indexed: 03/29/2023] Open
Abstract
Titanium (Ti) and its alloys have been widely used as orthopedic implants, because of their favorable mechanical properties, corrosion resistance and biocompatibility. Despite their significant success in various clinical applications, the probability of failure, degradation and revision is undesirably high, especially for the patients with low bone density, insufficient quantity of bone or osteoporosis, which renders the studies on surface modification of Ti still active to further improve clinical results. It is discerned that surface physicochemical properties directly influence and even control the dynamic interaction that subsequently determines the success or rejection of orthopedic implants. Therefore, it is crucial to endow bulk materials with specific surface properties of high bioactivity that can be performed by surface modification to realize the osseointegration. This article first reviews surface characteristics of Ti materials and various conventional surface modification techniques involving mechanical, physical and chemical treatments based on the formation mechanism of the modified coatings. Such conventional methods are able to improve bioactivity of Ti implants, but the surfaces with static state cannot respond to the dynamic biological cascades from the living cells and tissues. Hence, beyond traditional static design, dynamic responsive avenues are then emerging. The dynamic stimuli sources for surface functionalization can originate from environmental triggers or physiological triggers. In short, this review surveys recent developments in the surface engineering of Ti materials, with a specific emphasis on advances in static to dynamic functionality, which provides perspectives for improving bioactivity and biocompatibility of Ti implants.
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Liu N, Huang S, Guo F, Wang D, Zuo Y, Li F, Liu C. Calcium phosphate cement with minocycline hydrochloride-loaded gelatine microspheres for peri-implantitis treatment. J Dent 2023; 136:104624. [PMID: 37459952 DOI: 10.1016/j.jdent.2023.104624] [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: 05/01/2023] [Revised: 07/04/2023] [Accepted: 07/13/2023] [Indexed: 07/26/2023] Open
Abstract
OBJECTIVES This study aimed to fabricate an antibacterial calcium phosphate cement (CPC) with minocycline hydrochloride (MINO)-loaded gelatine microspheres (GMs) as a local drug delivery system for the treatment of peri‑implantitis. METHODS CPC/GMs(MINO), incorporating MINO-loaded GMs into CPC, was developed and characterised using scanning electron microscopy (SEM), X-ray diffraction (XRD), and drug release profiling. The antibacterial activity against Porphyromonas gingivalis and Fusobacterium nucleatum was evaluated. Bone mesenchymal stem cells (BMSCs) were cultured in the extracts of the developed cements to evaluate osteoinductivity in vitro. Furthermore, a rabbit femoral model was established to evaluate osteogenic ability in vivo. RESULTS SEM and XRD confirmed the porous structure and chemical stability of CPC/GMs(MINO). The release profile showed a sustained release of MINO from CPC/GMs(MINO), reaching an equilibrium state on the 14th day with a cumulative release ratio of approximately 84%. For antibacterial assays, the inhibition zone of CPC/GMs(MINO) was 3.67 ± 0.31 cm for P. gingivalis and 7.47 ± 0.50 cm for F. nucleatum. Most bacteria seeded on CPC/GMs(MINO) died after 24 h of culture. In addition, CPC/GMs(MINO) significantly enhanced alkaline phosphatase activity, osteogenic gene expression, and BMSC mineralisation compared with CPC/GMs and the control group (P < 0.05). The in vivo results showed that CPC/GMs(MINO) possessed a higher quality and quantity of bone formation and maturation than CPC/GMs and CPC. CONCLUSIONS CPC/GMs(MINO) showed excellent antibacterial activity against pathogens associated with peri‑implantitis and demonstrated good osteoinductivity and osteogenic ability. CLINICAL SIGNIFICANCE Peri-implantitis is among the most common and challenging biological complications associated with dental implants. In this study, MINO-loaded GMs were incorporated into CPC, which endowed the composite cement with excellent antibacterial and osteogenic abilities, demonstrating its potential as a bone graft substitute for treating peri‑implantitis.
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Affiliation(s)
- Ning Liu
- Research Center for Tooth and Maxillofacial Tissue Regeneration and Restoration, Department of Oral and Maxillofacial Surgery, School of Stomatology, Xi'an Medical University, Xi'an, Shaanxi 710021, China
| | - Shuo Huang
- Research Center for Tooth and Maxillofacial Tissue Regeneration and Restoration, Department of Oral and Maxillofacial Surgery, School of Stomatology, Xi'an Medical University, Xi'an, Shaanxi 710021, China
| | - Fang Guo
- Research Center for Tooth and Maxillofacial Tissue Regeneration and Restoration, Department of Oral and Maxillofacial Surgery, School of Stomatology, Xi'an Medical University, Xi'an, Shaanxi 710021, China
| | - Danyang Wang
- Research Center for Tooth and Maxillofacial Tissue Regeneration and Restoration, Department of Prosthodontics, School of Stomatology, Xi'an Medical University, Xi'an, Shaanxi 710021, China
| | - Yanping Zuo
- Research Center for Tooth and Maxillofacial Tissue Regeneration and Restoration, Department of Prosthodontics, School of Stomatology, Xi'an Medical University, Xi'an, Shaanxi 710021, China
| | - Fang Li
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, Air Force Military Medical University, Xi'an, Shaanxi 710032, China
| | - Changkui Liu
- Research Center for Tooth and Maxillofacial Tissue Regeneration and Restoration, Department of Oral and Maxillofacial Surgery, School of Stomatology, Xi'an Medical University, Xi'an, Shaanxi 710021, China.
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Dong S, Zhao T, Wu W, Zhang Z, Wu J, Cai K, Li G, Lv J, Zhou H, Tang C. Sandblasted/Acid-Etched Titanium Surface Modified with Calcium Phytate Enhances Bone Regeneration in a High-Glucose Microenvironment by Regulating Reactive Oxygen Species and Cell Senescence. ACS Biomater Sci Eng 2023; 9:4720-4734. [PMID: 37491189 DOI: 10.1021/acsbiomaterials.3c00385] [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: 07/27/2023]
Abstract
Hyperglycemia in patients with diabetes affect osteoblast function, leading to abnormal bone metabolism and implant failure. Adequate bone volume surrounding an implant is essential for osseointegration, which can be improved by implant surface modifications. In this study, titanium surfaces were hydrothermally treated with a mixture of phytic acid (PA) and calcium hydroxide to produce a calcium-decorated surface. The control group comprised pure titanium with a sandblasted/acid-etched (SLA) surface. The elemental composition, hydrophilicity, surface roughness, and morphology of the titanium surfaces were examined. Evaluation of in vitro osteogenic differentiation ability in a high-glucose environment using alkaline phosphatase (ALP) staining, ALP activity assays, Alizarin Red S staining, quantitative reverse transcription-polymerase chain reaction (qRT-PCR), and immunofluorescence staining revealed that Ca-PA-modified SLA titanium surfaces can promote osteogenic differentiation of human bone marrow mesenchymal stem cells (hBMSCs). Evaluation of oxidative stress and aging using reactive oxygen species (ROS), malondialdehyde (MDA), superoxide dismutase (SOD), and β-galactosidase staining revealed that Ca-PA-modified SLA titanium surfaces can reduce ROS production and ameliorate oxidative stress damage in hBMSCs. In vivo assessment of osteogenesis in a diabetic rat model revealed that Ca-PA coating promotes peri-implant osseointegration. Ca-PA-modified SLA titanium surface is a candidate for improving implant osseointegration in patients with diabetes.
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Affiliation(s)
- Shuo Dong
- Department of Dental Implantology, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing 210029, China
- Jiangsu Province Key Laboratory of Oral Diseases, Nanjing 210029, China
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing 210000, China
| | - Tong Zhao
- Department of Dental Implantology, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing 210029, China
- Jiangsu Province Key Laboratory of Oral Diseases, Nanjing 210029, China
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing 210000, China
| | - Wei Wu
- Department of Dental Implantology, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing 210029, China
- Jiangsu Province Key Laboratory of Oral Diseases, Nanjing 210029, China
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing 210000, China
| | - Zhewei Zhang
- Department of Dental Implantology, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing 210029, China
- Jiangsu Province Key Laboratory of Oral Diseases, Nanjing 210029, China
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing 210000, China
| | - Jin Wu
- Department of Dental Implantology, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing 210029, China
- Jiangsu Province Key Laboratory of Oral Diseases, Nanjing 210029, China
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing 210000, China
| | - Kunzhan Cai
- Department of Dental Implantology, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing 210029, China
- Jiangsu Province Key Laboratory of Oral Diseases, Nanjing 210029, China
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing 210000, China
| | - Guoqing Li
- Department of Dental Implantology, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing 210029, China
- Jiangsu Province Key Laboratory of Oral Diseases, Nanjing 210029, China
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing 210000, China
| | - Jiaxin Lv
- Department of Dental Implantology, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing 210029, China
- Jiangsu Province Key Laboratory of Oral Diseases, Nanjing 210029, China
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing 210000, China
| | - Heyang Zhou
- Department of Dental Implantology, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing 210029, China
- Jiangsu Province Key Laboratory of Oral Diseases, Nanjing 210029, China
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing 210000, China
| | - Chunbo Tang
- Department of Dental Implantology, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing 210029, China
- Jiangsu Province Key Laboratory of Oral Diseases, Nanjing 210029, China
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing 210000, China
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Ma M, Zhao M, Deng H, Liu Z, Wang L, Ge L. Facile and versatile strategy for fabrication of highly bacteriostatic and biocompatible SLA-Ti surfaces with the regulation of Mg/Cu coimplantation ratio for dental implant applications. Colloids Surf B Biointerfaces 2023; 223:113180. [PMID: 36731269 DOI: 10.1016/j.colsurfb.2023.113180] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Revised: 01/15/2023] [Accepted: 01/26/2023] [Indexed: 01/29/2023]
Abstract
The low bactericidal activity and poor osteogenic activity of Ti limit the use of this metal in dental implants by increasing the risk of their periimplantitis-induced failure. To address this problem, we herein surface-modify biomedical Ti through the plasma immersion coimplantation of Mg and Cu ions and examine the physicochemical properties and bio-/hemocompatibility of the resulting materials as well as their activity against periimplantitis-causing bacteria, namely Streptococcus mutans and Porphyromonas gingivalis. The reactive oxygen species release (ROS) was assessed via the 2'7'-dichlorodihydrofluorescein diacetate (DCFH-DA) assay. The best-performing sample Mg/Cu(8/10)-Ti promotes cell proliferation and initial cell adhesion while exhibiting high hydrophilicity, outstanding activity against the aforementioned pathogens, and good bio-/hemocompatibility. Additionally, higher levels of cellular ROS generation in S. mutans and P. gingivalis could provide insight into the antibacterial mechanisms involved in Mg/Cu(8/10)-Ti. Thus, Mg/Cu coimplantation is concluded to endow the Ti surface with high bacteriostatic activity and biocompatibility, paving the way to the widespread use of Ti-based dental implants.
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Affiliation(s)
- Ming Ma
- Affiliated Stomatology Hospital of Guangzhou Medical University, Guangdong Engineering Research Center of Oral Restoration and Reconstruction, Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangzhou, Guangdong 510182, China
| | - Mengli Zhao
- College of Physics and Materials Science, Tianjin Normal University, Tianjin 300387, China
| | - Haiyan Deng
- Affiliated Stomatology Hospital of Guangzhou Medical University, Guangdong Engineering Research Center of Oral Restoration and Reconstruction, Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangzhou, Guangdong 510182, China
| | - Zuoda Liu
- College of Physics and Materials Science, Tianjin Normal University, Tianjin 300387, China
| | - Liping Wang
- Affiliated Stomatology Hospital of Guangzhou Medical University, Guangdong Engineering Research Center of Oral Restoration and Reconstruction, Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangzhou, Guangdong 510182, China.
| | - Linhu Ge
- Affiliated Stomatology Hospital of Guangzhou Medical University, Guangdong Engineering Research Center of Oral Restoration and Reconstruction, Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangzhou, Guangdong 510182, China.
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7
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Gao X, Wang H, Luan S, Zhou G. Low-Temperature Printed Hierarchically Porous Induced-Biomineralization Polyaryletherketone Scaffold for Bone Tissue Engineering. Adv Healthc Mater 2022; 11:e2200977. [PMID: 35816736 DOI: 10.1002/adhm.202200977] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 06/08/2022] [Indexed: 01/27/2023]
Abstract
Polyetheretherketone (PEEK) as a popular orthopaedic implant is usually fabricated into a hierarchically porous structure for improving osteogenic activity. However, the applications are limited due to the excessively high processing temperature and uncontrollably tedious modification routes. Here, an amorphous polyaryletherketone with carboxyl groups (PAEK-COOH) is synthesized and fabricated to the hierarchically controllable porous scaffolds via a low-temperature 3D-printing process. The prepared PAEK-COOH scaffolds present controllable porous structures ranging from nano- to micro-scale, and their mechanical strengths are comparable to that of trabecular bone. More importantly, the in vitro experiments show that the nanoporous surface is conducive to promoting cellular adhesion, and carboxyl groups can induce hydroxyapatite mineralization via electrostatic interaction. The in vivo experiments demonstrate that the PAEK-COOH scaffolds offer much better osseointegration without additional active ingredients, compared to that of PEEK. Therefore, this work will not only develop a promising candidate for bone tissue engineering, but provide a viable method to design PAEK biomaterials.
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Affiliation(s)
- Xinshuai Gao
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China.,University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Honghua Wang
- Division of Energy Materials (DNL22), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, P. R. China
| | - Shifang Luan
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China.,University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Guangyuan Zhou
- Division of Energy Materials (DNL22), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, P. R. China
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Zhao Y, Sun Y, Hang R, Yao R, Zhang Y, Huang D, Yao X, Bai L, Hang R. Biocompatible silane adhesion layer on titanium implants improves angiogenesis and osteogenesis. BIOMATERIALS ADVANCES 2022; 139:213033. [PMID: 35882124 DOI: 10.1016/j.bioadv.2022.213033] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 07/02/2022] [Accepted: 07/12/2022] [Indexed: 06/15/2023]
Abstract
Silane adhesion layer strategy has been widely used to covalently graft biomolecules to the titanium implant surface, thereby conferring the implant bioactivity to ameliorate osseointegration. However, few researchers pay attention to the effects of silanization parameters on biocompatibility and biofunctionality of the silane adhesion layers. Accordingly, the present study successfully fabricated the silane adhesion layers with different thickness, intactness, and surface morphologies by introducing 3-aminopropyltriethoxysilane on the alkali-treated titanium surface in time-varied processing of silanization. The regulatory effects of the silane adhesion layers on angiogenesis and osteogenesis were assessed in vitro. Results showed that the prolonged silanization processing time increased the thickness and intactness of the silane adhesion layer and significantly improved its biocompatibility. Notably, the silane adhesion layer prepared after 12 h of silanization exhibited a brain-like surface morphology and benefited the adhesion and proliferation of endothelial cells (ECs) and osteoblasts (OBs). Moreover, the layer promoted angiogenesis via stimulating vascular endothelial growth factor (VEGF) secretion and nitric oxide (NO) production of ECs. Simultaneously, it improved osteogenesis by enhancing alkaline phosphatase (ALP) activity, collagen secretion, and extracellular matrix mineralization of OBs. This work systematically investigated the biocompatibility and biofunctionality of the modified silane adhesion layers, thus providing valuable references for their application in covalently grafting biomolecules on the titanium implant surface.
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Affiliation(s)
- Yuyu Zhao
- Shanxi Key Laboratory of Biomedical Metal Materials, College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China
| | - Yonghua Sun
- Shanxi Key Laboratory of Biomedical Metal Materials, College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China
| | - Ruiyue Hang
- Shanxi Key Laboratory of Biomedical Metal Materials, College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China
| | - Runhua Yao
- Shanxi Key Laboratory of Biomedical Metal Materials, College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China
| | - Yi Zhang
- Shanxi Key Laboratory of Biomedical Metal Materials, College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China
| | - Di Huang
- Department of Biomedical Engineering, Research Center for Nano-biomaterials & Regenerative Medicine, College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan 030024, China; Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering, Taiyuan 030032, China
| | - Xiaohong Yao
- Shanxi Key Laboratory of Biomedical Metal Materials, College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China.
| | - Long Bai
- Institute of Translational Medicine, Shanghai University, Shanghai, 200444 China; Engineering Research Center for Biomedical Materials of Ministry of Education, College of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China.
| | - Ruiqiang Hang
- Shanxi Key Laboratory of Biomedical Metal Materials, College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China.
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9
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Zhang Y, Wang X, Li Y, Liang J, Jiang P, Huang Q, Yang Y, Duan H, Dong X, Rui G, Lin C. Cell osteogenic bioactivity mediated precisely by varying scaled micro-pits on ordered micro/nano hierarchical structures of titanium. Regen Biomater 2022; 9:rbac046. [PMID: 35855110 PMCID: PMC9290875 DOI: 10.1093/rb/rbac046] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 06/12/2022] [Accepted: 06/19/2022] [Indexed: 11/30/2022] Open
Abstract
Hierarchical surface structures with micro–nano scale play a crucial role in regulation of cell proliferation and osteogenic differentiation. It has been proven that cells are extremely sensitive to the nanoscaled structure and show multifarious phenotypes. Though a vital function of microstructure on osseointegration has been confirmed, the cell performances response to different microscaled structure is needed to be further dissected and in depth understood. In this work, the ordered micro–nano hierarchical structures with varying micro-scaled pits were precisely fabricated on titanium successfully by the combination of electrochemical, chemical etching and anodization as well. In vitro systematical assessments indicated that the micro–nano multilevel structures on titanium exhibited excellent cells adhesion and spreading ability, as well as steerable proliferation and osteogenic differentiation behaviors. It is shown that smaller micro-pits and lower roughness of the hierarchical structures enabled faster cell propagation. Despite cell growth was delayed on micro–nano titanium with relatively larger cell-match-size micro-pits and roughness, osteogenic-specific genes were significantly elevated. Furthermore, the alkaline phosphatase activity, collagen secretion and extracellular matrix mineralization of MC3T3-E1 on multi-scaled titanium were suppressed by a large margin after adding IWP-2 (an inhibitor of Wnt/β-catenin signal pathway), indicating this pathway played a crucial part in cell osteogenic differentiation modulated by micro–nano structures.
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Affiliation(s)
- Yanmei Zhang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, and College of Chemistry and Chemical Engineering, Xiamen University , Xiamen 361005, China
| | - Xiankuan Wang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, and College of Chemistry and Chemical Engineering, Xiamen University , Xiamen 361005, China
| | - Yaxian Li
- State Key Laboratory of Physical Chemistry of Solid Surfaces, and College of Chemistry and Chemical Engineering, Xiamen University , Xiamen 361005, China
| | - Jianhe Liang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, and College of Chemistry and Chemical Engineering, Xiamen University , Xiamen 361005, China
| | - Pinliang Jiang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, and College of Chemistry and Chemical Engineering, Xiamen University , Xiamen 361005, China
| | - Qiaoling Huang
- Research Institute for Biomimetics and Soft Matter, Fujian Provincial Key Laboratory for Soft Functional Materials Research, College of Physical Science and Technology, Xiamen University , Xiamen 361005, China
| | - Yun Yang
- Research Institute for Biomimetics and Soft Matter, Fujian Provincial Key Laboratory for Soft Functional Materials Research, College of Physical Science and Technology, Xiamen University , Xiamen 361005, China
| | - Hongping Duan
- Beijing Engineering Laboratory of Functional Medical Materials and Devices, Beijing Medical Implant Engineering Research Center, Beijing Naton Technology Group Co. Ltd , Beijing, China
| | - Xiang Dong
- Beijing Engineering Laboratory of Functional Medical Materials and Devices, Beijing Medical Implant Engineering Research Center, Beijing Naton Technology Group Co. Ltd , Beijing, China
| | - Gang Rui
- The First Affiliated Hospital of Xiamen University Department of Orthopedics Surgery, , Xiamen, Fujian 361003, China
| | - Changjian Lin
- and College of Chemistry and Chemical Engineering, Xiamen University State Key Laboratory of Physical Chemistry of Solid Surfaces, , Xiamen 361005, China
- Tan Kah Kee Innovation Laboratory, Xiamen , Fujian, 361005 China
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10
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Liu S, Chen X, Yu M, Li J, Liu J, Xie Z, Gao F, Liu Y. Applications of Titanium Dioxide Nanostructure in Stomatology. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27123881. [PMID: 35745007 PMCID: PMC9229536 DOI: 10.3390/molecules27123881] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/14/2022] [Revised: 06/09/2022] [Accepted: 06/14/2022] [Indexed: 11/16/2022]
Abstract
Breakthroughs in the field of nanotechnology, especially in nanochemistry and nanofabrication technologies, have been attracting much attention, and various nanomaterials have recently been developed for biomedical applications. Among these nanomaterials, nanoscale titanium dioxide (nano-TiO2) has been widely valued in stomatology due to the fact of its excellent biocompatibility, antibacterial activity, and photocatalytic activity as well as its potential use for applications such as dental implant surface modification, tissue engineering and regenerative medicine, drug delivery carrier, dental material additives, and oral tumor diagnosis and treatment. However, the biosafety of nano-TiO2 is controversial and has become a key constraint in the development of nano-TiO2 applications in stomatology. Therefore, in this review, we summarize recent research regarding the applications of nano-TiO2 in stomatology, with an emphasis on its performance characteristics in different fields, and evaluations of the biological security of nano-TiO2 applications. In addition, we discuss the challenges, prospects, and future research directions regarding applications of nano-TiO2 in stomatology that are significant and worthy of further exploration.
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Affiliation(s)
- Shuang Liu
- Department of Endodontics, Hospital of Stomatology, Jilin University, Changchun 130000, China; (S.L.); (X.C.); (M.Y.); (J.L.); (J.L.); (Z.X.)
| | - Xingzhu Chen
- Department of Endodontics, Hospital of Stomatology, Jilin University, Changchun 130000, China; (S.L.); (X.C.); (M.Y.); (J.L.); (J.L.); (Z.X.)
| | - Mingyue Yu
- Department of Endodontics, Hospital of Stomatology, Jilin University, Changchun 130000, China; (S.L.); (X.C.); (M.Y.); (J.L.); (J.L.); (Z.X.)
| | - Jianing Li
- Department of Endodontics, Hospital of Stomatology, Jilin University, Changchun 130000, China; (S.L.); (X.C.); (M.Y.); (J.L.); (J.L.); (Z.X.)
| | - Jinyao Liu
- Department of Endodontics, Hospital of Stomatology, Jilin University, Changchun 130000, China; (S.L.); (X.C.); (M.Y.); (J.L.); (J.L.); (Z.X.)
| | - Zunxuan Xie
- Department of Endodontics, Hospital of Stomatology, Jilin University, Changchun 130000, China; (S.L.); (X.C.); (M.Y.); (J.L.); (J.L.); (Z.X.)
| | - Fengxiang Gao
- Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130000, China
- Correspondence: (F.G.); (Y.L.); Tel.: +86-13756189633 (F.G.); +86-13756466950 (Y.L.)
| | - Yuyan Liu
- Department of Endodontics, Hospital of Stomatology, Jilin University, Changchun 130000, China; (S.L.); (X.C.); (M.Y.); (J.L.); (J.L.); (Z.X.)
- Correspondence: (F.G.); (Y.L.); Tel.: +86-13756189633 (F.G.); +86-13756466950 (Y.L.)
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11
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TiO2 Nanocoatings with Controllable Crystal Type and Nanoscale Topography on Zirconia Implants to Accelerate Bone Formation. Bioinorg Chem Appl 2022; 2022:8650659. [PMID: 35529315 PMCID: PMC9068347 DOI: 10.1155/2022/8650659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Accepted: 03/04/2022] [Indexed: 11/18/2022] Open
Abstract
In dentistry, zirconia implants have emerged as a promising alternative for replacing missing teeth due to their superior aesthetic performance and chemical stability. To improve the osseointegration of zirconia implants, modifying their surface with hierarchical micro/nanotopography and bioactive chemical composition are two effective ways. In this work, a microscale topography was prepared on a zirconia surface using hydrofluoric acid etching, and then a 50 nm TiO2 nanocoating was deposited via atomic layer deposition (ALD). Subsequently, an annealing treatment was used to transform the TiO2 from amorphous to anatase and simultaneously generate nanoscale topography. Various investigations into the coating surface morphology, topography, wettability, and chemical composition were carried out using scanning electron microscopy, white light interferometry, contact-angle measurement, X-ray diffraction, and X-ray photoelectron spectroscopy. In addition, in vitro cytocompatibility and osteogenic potential performance of the coatings were evaluated by human bone marrow mesenchymal stem cells (hBMSCs), and in vivo osseointegration performance was assessed in a rat femoral condyle model. Moreover, the possible mechanism was also investigated. The deposition of TiO2 film with/without annealing treatment did not alter the microscale roughness of the zirconia surface, whereas the nanotopography changed significantly after annealing. The in vitro studies revealed that the anatase TiO2 coating with regular wavelike nanostructure could promote the adhesion and proliferation of osteoblasts and further improve the osteogenic potential in vitro and osseointegration in vivo. These positive effects may be caused by nanoscale topography via the canonical Wnt/β-catenin pathway. The results suggest that using ALD in combination with annealing treatment to fabricate a nanotopographic TiO2 coating is a promising way to improve the osteogenic properties of zirconia implants.
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12
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Zhang Y, Sun N, Zhu M, Qiu Q, Zhao P, Zheng C, Bai Q, Zeng Q, Lu T. The contribution of pore size and porosity of 3D printed porous titanium scaffolds to osteogenesis. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2022; 133:112651. [PMID: 35034817 DOI: 10.1016/j.msec.2022.112651] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Revised: 12/16/2021] [Accepted: 01/04/2022] [Indexed: 12/18/2022]
Abstract
Porous titanium implants were popularly fabricated to promote bone formation. A desirable porous scaffold was recommended to be with porosity of >60% or/and pore size of >300 μm for better osteointegration. However, whether the pore size and porosity could be randomly selected within the recommended values? And what is the correlation between pore size and porosity for accelerating osteointegration? In this study, porous titanium with cubic cell structure was produced by selective laser melting. The designed porosities of scaffolds with 700-μm pore size were 40%, 70% and 90%; and the pore sizes of scaffolds with 70% porosity were 400, 700 and 900 μm. The in vitro osteogenic potential and in vivo bone formation were investigated. Results showed that porosity and pore size could be tuned by altering strut size, which was further directly responsible for mechanical properties. Besides, pore size and porosity synergistically contributed to osteogenic activity in vitro and new bone formation in vivo. In regard to pore sizes herein, the optimized one for better osteogenic response and bone forming ability was ~600-700 μm (p70). Too smaller or too larger pore size might more or less hinder cellular behaviors and bone regeneration, even if both pore size (300-900 μm) and porosity (70%) were within the recommended value range. At a constant pore size (~600-700 μm), p70 and p90 with higher porosity was more conductive to biological effects, compared with p40. As a result, pore-size variation revealed more significant influence on osteogenesis, compared with variation of porosity within recommended values. However, the applicable porosity within recommended values should be designed with the consideration of specific load-bearing conditions. This study helps to provide guidance for designing porous scaffolds with appropriate mechanical strengths and effective bone-forming ability, so as to develop better custom-made bone substitutes.
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Affiliation(s)
- Yanni Zhang
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an 710072, China
| | - Na Sun
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an 710072, China
| | - Mengran Zhu
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an 710072, China
| | - Quanrun Qiu
- Research Centre for Nano Energy Materials, Queen Mary University of London Engineering School, Northwestern Polytechnical University, Xi'an 710072, China
| | - Pengju Zhao
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an 710072, China
| | - Caiyun Zheng
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an 710072, China
| | - Que Bai
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an 710072, China
| | - Qingyan Zeng
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an 710072, China
| | - Tingli Lu
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an 710072, China.
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13
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Huang R, Hao Y, Pan Y, Pan C, Tang X, Huang L, Du C, Yue R, Cui D. Using a two-step method of surface mechanical attrition treatment and calcium ion implantation to promote the osteogenic activity of mesenchymal stem cells as well as biomineralization on a β-titanium surface. RSC Adv 2022; 12:20037-20053. [PMID: 35919615 PMCID: PMC9277716 DOI: 10.1039/d2ra00032f] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Accepted: 06/27/2022] [Indexed: 11/21/2022] Open
Abstract
Combination of the SMAT technique and Ca-ion implantation produced a β-titanium alloy with a bioactive surface layer, which was proved to effectively promote the osteogenic activity of MSCs and Ca–P mineral deposition in vitro.
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Affiliation(s)
- Run Huang
- School of Materials Science and Engineering, Anhui University of Science and Technology, Huainan 232001, China
- Institute of Environment-friendly Materials and Occupational Health of Anhui University of Science and Technology (Wuhu), Wuhu 241003, China
- Anhui International Joint Research Center for Nano Carbon-based Materials and Environmental Health, Anhui University of Science and Technology, Huainan 232001, China
| | - Yufei Hao
- School of Materials Science and Engineering, Anhui University of Science and Technology, Huainan 232001, China
| | - Yusong Pan
- School of Materials Science and Engineering, Anhui University of Science and Technology, Huainan 232001, China
| | - Chengling Pan
- School of Materials Science and Engineering, Anhui University of Science and Technology, Huainan 232001, China
- Institute of Environment-friendly Materials and Occupational Health of Anhui University of Science and Technology (Wuhu), Wuhu 241003, China
| | - Xiaolong Tang
- Institute of Environment-friendly Materials and Occupational Health of Anhui University of Science and Technology (Wuhu), Wuhu 241003, China
- Medical School, Anhui University of Science and Technology, Huainan 232001, China
| | - Lei Huang
- Department of Gastrointestinal Surgery, Hubei Cancer Hospital, Wuhan 430060, China
| | - Chao Du
- School of Materials Science and Engineering, Anhui University of Science and Technology, Huainan 232001, China
| | - Rui Yue
- School of Materials Science and Engineering, Anhui University of Science and Technology, Huainan 232001, China
| | - Diansheng Cui
- Department of Gastrointestinal Surgery, Hubei Cancer Hospital, Wuhan 430060, China
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14
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Lu C, Wang L, Zhang L, Xue C, Ye H, Chen X, Wu J, Xiao J. Li-doped calcium phosphate cement for accelerated bone regeneration of osteoporotic bone defect. J Appl Biomater Funct Mater 2022; 20:22808000221099012. [PMID: 36148984 DOI: 10.1177/22808000221099012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Osteoporotic fractures seriously endanger the elderly quality of life, especially postmenopausal women. Currently, calcium phosphate cement (CPC) is one of the materials used for the treatment of osteoporotic fractures. This study intends to investigate the biological effects of lithium (Li)-doped CPC. Li was dissolved into ultrapure water as curing solution to prepare CPC@Li composite material. Li did not affect the morphology of CPC. CPC@Li composite showed a sustained release of Li in 14 days. Compared with CPC, CPC@Li promoted the adhesion, proliferation, and osteogenic differentiation of rat bone marrow stem cells. The result of femur implantation in an osteoporosis mouse model showed that a larger amount of new bone was formed surrounding the CPC@Li implant and closely to the implant surface, indicating favorable osteogenesis and osteointegration capabilities. Li-doped CPC is promising to be used in clinic for its enhanced bone regeneration ability.
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Affiliation(s)
- Chengwu Lu
- Nanping First Hospital Affiliated to Fujian Medical University, Nanping, Fujian, China
| | - Linfeng Wang
- Nanping First Hospital Affiliated to Fujian Medical University, Nanping, Fujian, China
| | - Libao Zhang
- Nanping First Hospital Affiliated to Fujian Medical University, Nanping, Fujian, China
| | - Chaghui Xue
- Nanping First Hospital Affiliated to Fujian Medical University, Nanping, Fujian, China
| | - Hong Ye
- Nanping First Hospital Affiliated to Fujian Medical University, Nanping, Fujian, China
| | - Xiaojie Chen
- Nanping First Hospital Affiliated to Fujian Medical University, Nanping, Fujian, China
| | - Jianbin Wu
- Nanping First Hospital Affiliated to Fujian Medical University, Nanping, Fujian, China
| | - Jin Xiao
- Department of Orthopedics, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China
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15
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Sun Y, Li Y, Zhang Y, Wang T, Lin K, Liu J. A polydopamine-assisted strontium-substituted apatite coating for titanium promotes osteogenesis and angiogenesis via FAK/MAPK and PI3K/AKT signaling pathways. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 131:112482. [PMID: 34857268 DOI: 10.1016/j.msec.2021.112482] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 09/16/2021] [Accepted: 10/08/2021] [Indexed: 02/07/2023]
Abstract
Early osteointegration is essential for biomedical implants. Surface modifications can significantly compensate for an implant's lack of biocompatibility and osteo-differentiation. They can also be designed to promote angiogenesis in order to assist osteogenesis and ultimately facilitate bone regeneration. In this study, a polydopamine-assisted strontium-substituted apatite coating (Ti@PDA + SrHA) was fabricated on a multifunctional titanium implant to induce both angiogenic and osteogenic abilities for rapid osseointegration. Polydopamine and Sr-substituted hydroxyapatite were coated on the implant through biomineralization. The in vitro results showed that Ti@PDA + SrHA improved cell adhesion and increased the proliferation of rat bone marrow-derived mesenchymal stem cells (rBMSCs) and human umbilical vein endothelial cells (HUVECs). Ti@PDA + SrHA upregulated the expression of ALP activity and osteogenic genes in rBMSCs and elevated angiogenic genes in both rBMSCs and HUVECs. Mechanically, the FAK/MAPK signaling pathway was activated in rBMSCs, and the PI3K/AKT signaling pathway was activated in both rBMSCs and HUVECs. Consistent with these findings, Ti@PDA + SrHA accelerated new bone formation and rapid osseointegration in the femoral condyle implantation study with good stability. Overall, we fabricated a multifunctional biocompatible implant with better angiogenic and osteogenic performance compared to the non-coated implant.
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Affiliation(s)
- Yiting Sun
- Department of Oral & Cranio-Maxillofacial Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China; College of Stomatology, Shanghai Jiao Tong University, Shanghai 200011, China; National Center for Stomatology, Shanghai 200011, China; National Clinical Research Center for Oral Diseases, Shanghai 200011, China; Shanghai Key Laboratory of Stomatology, Shanghai 200011, China
| | - Yaxin Li
- Department of Oral & Cranio-Maxillofacial Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China; College of Stomatology, Shanghai Jiao Tong University, Shanghai 200011, China; National Center for Stomatology, Shanghai 200011, China; National Clinical Research Center for Oral Diseases, Shanghai 200011, China; Shanghai Key Laboratory of Stomatology, Shanghai 200011, China
| | - Yu Zhang
- College of Stomatology, Shanghai Jiao Tong University, Shanghai 200011, China; National Center for Stomatology, Shanghai 200011, China; National Clinical Research Center for Oral Diseases, Shanghai 200011, China; Shanghai Key Laboratory of Stomatology, Shanghai 200011, China; Department of Oral Maxillofacial-Head Neck Oncology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - Tiange Wang
- Department of Oral & Cranio-Maxillofacial Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China; College of Stomatology, Shanghai Jiao Tong University, Shanghai 200011, China; National Center for Stomatology, Shanghai 200011, China; National Clinical Research Center for Oral Diseases, Shanghai 200011, China; Shanghai Key Laboratory of Stomatology, Shanghai 200011, China
| | - Kaili Lin
- Department of Oral & Cranio-Maxillofacial Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China; College of Stomatology, Shanghai Jiao Tong University, Shanghai 200011, China; National Center for Stomatology, Shanghai 200011, China; National Clinical Research Center for Oral Diseases, Shanghai 200011, China; Shanghai Key Laboratory of Stomatology, Shanghai 200011, China.
| | - Jiaqiang Liu
- Department of Oral & Cranio-Maxillofacial Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China; College of Stomatology, Shanghai Jiao Tong University, Shanghai 200011, China; National Center for Stomatology, Shanghai 200011, China; National Clinical Research Center for Oral Diseases, Shanghai 200011, China; Shanghai Key Laboratory of Stomatology, Shanghai 200011, China.
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16
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Zhu C, He M, Sun D, Huang Y, Huang L, Du M, Wang J, Wang J, Li Z, Hu B, Song Y, Li Y, Feng G, Liu L, Zhang L. 3D-Printed Multifunctional Polyetheretherketone Bone Scaffold for Multimodal Treatment of Osteosarcoma and Osteomyelitis. ACS APPLIED MATERIALS & INTERFACES 2021; 13:47327-47340. [PMID: 34587454 DOI: 10.1021/acsami.1c10898] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
In this work, we developed the first 3D-printed polyetheretherketone (PEEK)-based bone scaffold with multi-functions targeting challenging bone diseases such as osteosarcoma and osteomyelitis. A 3D-printed PEEK/graphene nanocomposite scaffold was deposited with a drug-laden (antibiotics and/or anti-cancer drugs) hydroxyapatite coating. The graphene nanosheets within the scaffold served as effective photothermal agents that endowed the scaffold with on-demand photothermal conversion function under near-infrared laser irradiation. The bioactive hydroxyapatite coating significantly boosted the stem cell proliferation in vitro and promoted new bone growth in vivo. The presence of antibiotics and anti-cancer drugs enabled eradication of drug-resistant bacteria and ablation of osteosarcoma cancer cells, the treatment efficacy of which can be further enhanced by on-demand laser-induced heating. The promising results demonstrate the strong potential of our multi-functional scaffold in applications such as bone defect repair and multimodal treatment of osteosarcoma and osteomyelitis.
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Affiliation(s)
- Ce Zhu
- Department of Orthopedic Surgery and Orthopedic Research Institute, West China Hospital, Analytical & Testing Center, Sichuan University, Chengdu 610065, China
- Department of Spine Surgery, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, China
| | - Miaomiao He
- Department of Orthopedic Surgery and Orthopedic Research Institute, West China Hospital, Analytical & Testing Center, Sichuan University, Chengdu 610065, China
| | - Dan Sun
- Advanced Composite Research Group, School of Mechanical and Aerospace Engineering, Queen's University Belfast, Belfast BT9 5AH, U.K
| | - Yong Huang
- Department of Orthopedic Surgery and Orthopedic Research Institute, West China Hospital, Analytical & Testing Center, Sichuan University, Chengdu 610065, China
| | - Leizhen Huang
- Department of Orthopedic Surgery and Orthopedic Research Institute, West China Hospital, Analytical & Testing Center, Sichuan University, Chengdu 610065, China
| | - Meixuan Du
- Department of Orthopedic Surgery and Orthopedic Research Institute, West China Hospital, Analytical & Testing Center, Sichuan University, Chengdu 610065, China
| | - Jingcheng Wang
- Department of Orthopedic Surgery and Orthopedic Research Institute, West China Hospital, Analytical & Testing Center, Sichuan University, Chengdu 610065, China
| | - Juehan Wang
- Department of Orthopedic Surgery and Orthopedic Research Institute, West China Hospital, Analytical & Testing Center, Sichuan University, Chengdu 610065, China
| | - Zhongyang Li
- Department of Orthopedic Surgery and Orthopedic Research Institute, West China Hospital, Analytical & Testing Center, Sichuan University, Chengdu 610065, China
| | - Bowen Hu
- Department of Orthopedic Surgery and Orthopedic Research Institute, West China Hospital, Analytical & Testing Center, Sichuan University, Chengdu 610065, China
| | - Yueming Song
- Department of Orthopedic Surgery and Orthopedic Research Institute, West China Hospital, Analytical & Testing Center, Sichuan University, Chengdu 610065, China
| | - Yubao Li
- Department of Orthopedic Surgery and Orthopedic Research Institute, West China Hospital, Analytical & Testing Center, Sichuan University, Chengdu 610065, China
| | - Ganjun Feng
- Department of Orthopedic Surgery and Orthopedic Research Institute, West China Hospital, Analytical & Testing Center, Sichuan University, Chengdu 610065, China
| | - Limin Liu
- Department of Orthopedic Surgery and Orthopedic Research Institute, West China Hospital, Analytical & Testing Center, Sichuan University, Chengdu 610065, China
| | - Li Zhang
- Department of Orthopedic Surgery and Orthopedic Research Institute, West China Hospital, Analytical & Testing Center, Sichuan University, Chengdu 610065, China
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17
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Luo F, Wang L, Xiao Z, Zhu X, Fan Y, Wang K, Zhang X. Application of femtosecond laser microfabrication in the preparation of advanced bioactive titanium surfaces. J Mater Chem B 2021; 9:3912-3924. [PMID: 33928992 DOI: 10.1039/d1tb00231g] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The surface activation of titanium plays a key role in the biological properties of titanium implants as bone repair materials. Improving the ability to induce apatite precipitation on the surface was a well-accepted titanium bioactivation route. In this study, advanced femtosecond laser microfabrication was applied to modify titanium surfaces, and the effect of femtosecond laser etching on apatite precipitation was investigated and compared with popular titanium modification methods. Meanwhile, the mechanism of apatite formation after femtosecond laser modification was interpreted from the point of materials science. The surface physical-chemical characterization results showed that femtosecond laser etching can improve the surface hydrophilicity and increase the surface energy. Compared with traditional abrasive paper and acid-alkali treatment, this method increased the contents of active sites including titanium oxide and titanium-hydroxyl on titanium surfaces. TiO2 on the surface was transformed to TiO after femtosecond laser treatment. The samples etched with 0.3 W and 0.5 W femtosecond lasers had a better ability to induce apatite deposition than those treated with traditional mechanical treatment and popular acid-alkali modification, which would lead to better bioactivity and osteointegration. Considering the technical advantages of femtosecond lasers in microfabrication, it provides a more efficient and controllable scheme for the bioactivation of titanium. This research would improve the application potential of femtosecond laser treatment, such as micropattern preparation and surface activation, in the field of biomaterials.
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Affiliation(s)
- Fengxiong Luo
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China.
| | - Ling Wang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China.
| | - Zhanwen Xiao
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China.
| | - Xiangdong Zhu
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China.
| | - Yujiang Fan
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China.
| | - Kefeng Wang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China.
| | - Xingdong Zhang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China.
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18
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Cerium doped ZIF nanoparticles and hydroxyapatite co‐deposited coating on titanium dioxide nanotubes array exhibiting biocompatibility and antibacterial property. NANO SELECT 2021. [DOI: 10.1002/nano.202000244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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19
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Zhang Z, Zhang Y, Zhang S, Yao K, Sun Y, Liu Y, Wang X, Huang W. Synthesis of rare earth doped MOF base coating on TiO2nanotubes arrays by electrochemical method using as antibacterial implant material. INORG CHEM COMMUN 2021. [DOI: 10.1016/j.inoche.2021.108484] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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20
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Molecular Mechanisms of Topography Sensing by Osteoblasts: An Update. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11041791] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Bone is a specialized tissue formed by different cell types and a multiscale, complex mineralized matrix. The architecture and the surface chemistry of this microenvironment can be factors of considerable influence on cell biology, and can affect cell proliferation, commitment to differentiation, gene expression, matrix production and/or composition. It has been shown that osteoblasts encounter natural motifs in vivo, with various topographies (shapes, sizes, organization), and that cell cultures on flat surfaces do not reflect the total potential of the tissue. Therefore, studies investigating the role of topographies on cell behavior are important in order to better understand the interaction between cells and surfaces, to improve osseointegration processes in vivo between tissues and biomaterials, and to find a better topographic surface to enhance bone repair. In this review, we evaluate the main available data about surface topographies, techniques for topographies’ production, mechanical signal transduction from surfaces to cells and the impact of cell–surface interactions on osteoblasts or preosteoblasts’ behavior.
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21
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Huang L, Cai B, Huang Y, Wang J, Zhu C, Shi K, Song Y, Feng G, Liu L, Zhang L. Comparative Study on 3D Printed Ti6Al4V Scaffolds with Surface Modifications Using Hydrothermal Treatment and Microarc Oxidation to Enhance Osteogenic Activity. ACS OMEGA 2021; 6:1465-1476. [PMID: 33490806 PMCID: PMC7818615 DOI: 10.1021/acsomega.0c05191] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/24/2020] [Accepted: 12/28/2020] [Indexed: 02/08/2023]
Abstract
![]()
Titanium (Ti) and
its alloys have been widely used in clinics as
preferred materials for bone tissue repair and replacement. However,
the lack of biological activity of Ti limits its clinical applications.
Surface modification of Ti with bioactive elements has always been
a research hotspot. In this study, to promote the osseointegration
of Ti6Al4V (Ti64) implants, calcium (Ca), oxygen (O), and phosphorus
(P) codoped multifunctional micro–nanohybrid coatings were
prepared on a three-dimensional (3D) printed porous Ti64 surface by
microarc oxidation (MAO) and a hydrothermal method (HT). The surface
morphologies, chemical compositions, and surface/cell interactions
of the obtained coatings were studied. In vitro experiments
indicated that all hybrid coating-modified Ti64 implants could enhance
protein adsorption and MC3T3 osteoblasts’ activity, adhesion,
and differentiation ability. In vivo experiments
showed that the hybrid coating promoted early osseointegration. By
comparison, microarc oxidation-treated Ti64 (M-Ti) has the best biological
activity and the strongest ability of osseointegration. It provides
important theoretical significance and potential application prospects
for improving the biological activity of Ti implants.
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Affiliation(s)
- Leizhen Huang
- Department of Orthopedic Surgery and Orthopedic Research Institue, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Bianyun Cai
- College of Medical Technology and Engineering, Henan University of Science and Technology, Luoyang, Henan 471026, China
| | - Yong Huang
- Department of Orthopedic Surgery and Orthopedic Research Institue, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Jingcheng Wang
- Department of Orthopedic Surgery and Orthopedic Research Institue, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Ce Zhu
- Department of Orthopedic Surgery and Orthopedic Research Institue, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Kun Shi
- Department of Orthopedic Surgery and Orthopedic Research Institue, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Yueming Song
- Department of Orthopedic Surgery and Orthopedic Research Institue, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Ganjun Feng
- Department of Orthopedic Surgery and Orthopedic Research Institue, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Limin Liu
- Department of Orthopedic Surgery and Orthopedic Research Institue, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Li Zhang
- Analytical and Testing Center, Sichuan University, Chengdu, Sichuan 610065, China
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22
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Wang P, Yin HM, Li X, Liu W, Chu YX, Wang Y, Wang Y, Xu JZ, Li ZM, Li JH. Simultaneously constructing nanotopographical and chemical cues in 3D-printed polylactic acid scaffolds to promote bone regeneration. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 118:111457. [DOI: 10.1016/j.msec.2020.111457] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 08/12/2020] [Accepted: 08/23/2020] [Indexed: 02/08/2023]
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23
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Matuła I, Dercz G, Zubko M, Maszybrocka J, Jurek-Suliga J, Golba S, Jendrzejewska I. Microstructure and Porosity Evolution of the Ti-35Zr Biomedical Alloy Produced by Elemental Powder Metallurgy. MATERIALS (BASEL, SWITZERLAND) 2020; 13:ma13204539. [PMID: 33066125 PMCID: PMC7601945 DOI: 10.3390/ma13204539] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/05/2020] [Revised: 10/09/2020] [Accepted: 10/10/2020] [Indexed: 06/11/2023]
Abstract
In the present study, the structure and porosity of binary Ti-35Zr (wt.%) alloy were investigated, allowing to consider powder metallurgy as a production method for new metallic materials for potential medical applications. The porous Ti-Zr alloys were obtained by milling, cold isostatic pressing and sintering. The pressure during cold isostatic pressing was a changing parameter and was respectively 250, 500, 750 and 1000 MPa. The X-ray diffraction study revealed only the α phase, which corresponds to the Ti-Zr phase diagram. The microstructure of the Ti-35Zr was observed by optical microscopy and scanning electron microscopy. These observations revealed that the volume fraction of the pores decreased from over 20% to about 7% with increasing pressure during the cold isostatic pressing. The microhardness measurements showed changes from 137 HV0.5 to 225 HV0.5.
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Affiliation(s)
- Izabela Matuła
- Institute of Materials Engineering, University of Silesia in Katowice, 75 Pułku Piechoty Street 1 A, 41-500 Chorzów, Poland; (M.Z.); (J.M.); (J.J.-S.); (S.G.)
| | - Grzegorz Dercz
- Institute of Materials Engineering, University of Silesia in Katowice, 75 Pułku Piechoty Street 1 A, 41-500 Chorzów, Poland; (M.Z.); (J.M.); (J.J.-S.); (S.G.)
| | - Maciej Zubko
- Institute of Materials Engineering, University of Silesia in Katowice, 75 Pułku Piechoty Street 1 A, 41-500 Chorzów, Poland; (M.Z.); (J.M.); (J.J.-S.); (S.G.)
- Department of Physics, University of Hradec Kralove, Rokitanskeho 62, 500-03 Hradec Kralove, Czech Republic
| | - Joanna Maszybrocka
- Institute of Materials Engineering, University of Silesia in Katowice, 75 Pułku Piechoty Street 1 A, 41-500 Chorzów, Poland; (M.Z.); (J.M.); (J.J.-S.); (S.G.)
| | - Justyna Jurek-Suliga
- Institute of Materials Engineering, University of Silesia in Katowice, 75 Pułku Piechoty Street 1 A, 41-500 Chorzów, Poland; (M.Z.); (J.M.); (J.J.-S.); (S.G.)
| | - Sylwia Golba
- Institute of Materials Engineering, University of Silesia in Katowice, 75 Pułku Piechoty Street 1 A, 41-500 Chorzów, Poland; (M.Z.); (J.M.); (J.J.-S.); (S.G.)
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24
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Wei Y, Gao H, Hao L, Shi X, Wang Y. Constructing a Sr 2+-Substituted Surface Hydroxyapatite Hexagon-Like Microarray on 3D-Plotted Hydroxyapatite Scaffold to Regulate Osteogenic Differentiation. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E1672. [PMID: 32859069 PMCID: PMC7559340 DOI: 10.3390/nano10091672] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 08/21/2020] [Accepted: 08/24/2020] [Indexed: 01/04/2023]
Abstract
Surface topography and chemical characteristics can regulate stem cell proliferation and differentiation, and decrease the bone-healing time. However, the synergetic function of the surface structure and chemical cues in bone-regeneration repair was rarely studied. Herein, a strontium ion (Sr2+)-substituted surface hydroxyapatite (HA) hexagon-like microarray was successfully constructed on 3D-plotted HA porous scaffold through hydrothermal reaction to generate topography and chemical dual cues. The crystal phase of the Sr2+-substituted surface microarray was HA, while the lattice constant of the Sr2+-substituted microarray increased with increasing Sr2+-substituted amount. Sr2+-substituted microarray could achieve the sustainable release of Sr2+, which could effectively promote osteogenic differentiation of human adipose-derived stem cells (ADSCs) even without osteogenic-induced media. Osteogenic characteristics were optimally enhanced using the higher Sr2+-substituted surface microarray (8Sr-HA). Sr2+-substituted microarray on the scaffold surface could future improve the osteogenic performance of HA porous scaffold. These results indicated that the Sr2+-substituted HA surface hexagon-like microarray on 3D-plotted HA scaffolds had promising biological performance for bone-regeneration repair scaffold.
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Affiliation(s)
- Yingqi Wei
- Department of Biomedical Engineering, School of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, China;
- National Engineering Research Center for Tissue Restoration and Reconstruction, Guangzhou 510006, China;
| | - Huichang Gao
- School of Medicine, South China University of Technology, Guangzhou 510006, China;
| | - Lijing Hao
- National Engineering Research Center for Tissue Restoration and Reconstruction, Guangzhou 510006, China;
- Guangdong Province Key Laboratory of Biomedical Engineering, South China University of Technology, Guangzhou 510006, China
| | - Xuetao Shi
- Department of Biomedical Engineering, School of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, China;
- Guangdong Province Key Laboratory of Biomedical Engineering, South China University of Technology, Guangzhou 510006, China
| | - Yingjun Wang
- National Engineering Research Center for Tissue Restoration and Reconstruction, Guangzhou 510006, China;
- Guangdong Province Key Laboratory of Biomedical Engineering, South China University of Technology, Guangzhou 510006, China
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25
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Li Q, Liang B, Wang F, Wang Z. Delivery of Interleukin 4 from a Titanium Substrate Coated with Graphene Oxide for Enhanced Osseointegration by Regulating Macrophage Polarization. ACS Biomater Sci Eng 2020; 6:5215-5229. [PMID: 33455271 DOI: 10.1021/acsbiomaterials.0c01011] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Macrophage-related inflammation has been identified as a possible predictor of the success or failure of implants based on their polarization of the pro-inflammatory/anti-inflammatory (M1/M2) phenotype. The purpose of this study was to deliver interleukin 4 (IL-4, a cytokine that triggers M2 polarization of macrophages) from a titanium substrate by a graphene oxide (GO) coating to regulate the macrophage-related inflammatory response and improve the implant performance. The GO/IL-4 coating showed good biocompatibility and promoted macrophages polarization to the M2 phenotype in vitro. Conditioned media from macrophages cultured on a GO/IL-4 surface promoted the proliferation, migration, and osteogenic differentiation of bone marrow mesenchymal stem cells (BMSCs). As the inflammatory response at the interface of GO/IL-4 weakened, the percentage of M2-polarized macrophages increased and the best stability, bone-implant contact, and osteogenesis were observed in vivo. These results demonstrate that the macrophage-related inflammatory response plays a crucial role in osteogenesis around implants and that this GO/IL-4 coating provides an effective strategy for promoting implant osseointegration by regulating immune function.
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Affiliation(s)
- Qingfan Li
- Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Shanghai 200072, China.,Department of Oral Implant, School of Stomatology, Hospital of Stomatology, Tongji University, Shanghai 200092, China
| | - Beilei Liang
- Department of Oral Implant, School of Stomatology, Hospital of Stomatology, Tongji University, Shanghai 200092, China
| | - Fei Wang
- Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Shanghai 200072, China
| | - Zuolin Wang
- Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Shanghai 200072, China.,Department of Oral Implant, School of Stomatology, Hospital of Stomatology, Tongji University, Shanghai 200092, China
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26
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Li Q, Wang Z. Involvement of FAK/P38 Signaling Pathways in Mediating the Enhanced Osteogenesis Induced by Nano-Graphene Oxide Modification on Titanium Implant Surface. Int J Nanomedicine 2020; 15:4659-4676. [PMID: 32636624 PMCID: PMC7335313 DOI: 10.2147/ijn.s245608] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Accepted: 06/01/2020] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Titanium implants are widely used in dental and orthopedic medicine. Nevertheless, there is limited osteoinductive capability of titanium leading to a poor or delayed osseointegration, which might cause the failure of the implant therapy. Therefore, appropriate modification on the titanium surface for promoting osseointegration of existing implants is still pursued. PURPOSE Graphene oxide (GO) is a promising candidate to perform implant surface biofunctionalization for modulating the interactions between implant surface and cells. So the objective of this study was to fabricate a bioactive GO-modified titanium implant surface with excellent osteoinductive potential and further investigate the underlying biological mechanisms. MATERIALS AND METHODS The large particle sandblasting and acid etching (SLA, commonly used in clinical practice) surface as a control group was first developed and then the nano-GO was deposited on the SLA surface via an ultrasonic atomization spraying technique to create the SLA/GO group. Their effects on rat bone marrow mesenchymal stem cells (BMSCs) responsive behaviors were assessed in vitro, and the underlying biological mechanisms were further systematically investigated. Moreover, the osteogenesis performance in vivo was also evaluated. RESULTS The results showed that GO coating was fabricated on the titanium substrates successfully, which endowed SLA surface with the improved hydrophilicity and protein adsorption capacity. Compared with the SLA surface, the GO-modified surface favored cell adhesion and spreading, and significantly improved cell proliferation and osteogenic differentiation of BMSCs in vitro. Furthermore, the FAK/P38 signaling pathways were proven to be involved in the enhanced osteogenic differentiation of BMSCs, accompanied by the upregulated expression of focal adhesion (vinculin) on the GO coated surface. The enhanced bone regeneration ability of GO-modified implants when inserted into rat femurs was also observed and confirmed that the GO coating induced accelerated osseointegration and osteogenesis in vivo. CONCLUSION GO modification on titanium implant surface has potential applications for achieving rapid bone-implant integration through the mediation of FAK/P38 signaling pathways.
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Affiliation(s)
- Qingfan Li
- Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Shanghai, People’s Republic of China
- Department of Oral Implant, School of Stomatology, Hospital of Stomatology, Tongji University, Shanghai, People’s Republic of China
| | - Zuolin Wang
- Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Shanghai, People’s Republic of China
- Department of Oral Implant, School of Stomatology, Hospital of Stomatology, Tongji University, Shanghai, People’s Republic of China
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27
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Yao Q, Jiang Y, Tan S, Fu X, Li B, Liu L. Composition and bioactivity of calcium phosphate coatings on anodic oxide nanotubes formed on pure Ti and Ti-6Al-4V alloy substrates. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 110:110687. [DOI: 10.1016/j.msec.2020.110687] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Revised: 01/12/2020] [Accepted: 01/21/2020] [Indexed: 01/31/2023]
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28
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JV WR, B KA, J F, H M, G K, A I, L D, H R, RE B. Optimizing Manufacturing and Osseointegration of Ti6Al4V Implants through Precision Casting and Calcium and Phosphorus Ion Implantation? In Vivo Results of a Large-Scale Animal Trial. MATERIALS 2020; 13:ma13071670. [PMID: 32260177 PMCID: PMC7178301 DOI: 10.3390/ma13071670] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 03/25/2020] [Accepted: 03/26/2020] [Indexed: 01/05/2023]
Abstract
Background: Uncemented implants are still associated with several major challenges, especially with regard to their manufacturing and their osseointegration. In this study, a novel manufacturing technique—an optimized form of precision casting—and a novel surface modification to promote osseointegration—calcium and phosphorus ion implantation into the implant surface—were tested in vivo. Methods: Cylindrical Ti6Al4V implants were inserted bilaterally into the tibia of 110 rats. We compared two generations of cast Ti6Al4V implants (CAST 1st GEN, n = 22, and CAST 2nd GEN, n = 22) as well as cast 2nd GEN Ti6Al4V implants with calcium (CAST + CA, n = 22) and phosphorus (CAST + P, n = 22) ion implantation to standard machined Ti6Al4V implants (control, n = 22). After 4 and 12 weeks, maximal pull-out force and bone-to-implant contact rate (BIC) were measured and compared between all five groups. Results: There was no significant difference between all five groups after 4 weeks or 12 weeks with regard to pull-out force (p > 0.05, Kruskal Wallis test). Histomorphometric analysis showed no significant difference of BIC after 4 weeks (p > 0.05, Kruskal–Wallis test), whereas there was a trend towards a higher BIC in the CAST + P group (54.8% ± 15.2%), especially compared to the control group (38.6% ± 12.8%) after 12 weeks (p = 0.053, Kruskal–Wallis test). Conclusion: In this study, we found no indication of inferiority of Ti6Al4V implants cast with the optimized centrifugal precision casting technique of the second generation compared to standard Ti6Al4V implants. As the employed manufacturing process holds considerable economic potential, mainly due to a significantly decreased material demand per implant by casting near net-shape instead of milling away most of the starting ingot, its application in manufacturing uncemented implants seems promising. However, no significant advantages of calcium or phosphorus ion implantation could be observed in this study. Due to the promising results of ion implantation in previous in vitro and in vivo studies, further in vivo studies with different ion implantation conditions should be considered.
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Affiliation(s)
- Wölfle-Roos JV
- Department of Orthopaedic Surgery, Ulm University, 89081 Ulm, Germany;
- Correspondence:
| | - Katmer Amet B
- Department of Orthopaedic Surgery, Division for Biochemistry of Joint and Connective Tissue Diseases, Ulm University, 89081 Ulm, Germany; (K.A.B.); (F.J.)
| | - Fiedler J
- Department of Orthopaedic Surgery, Division for Biochemistry of Joint and Connective Tissue Diseases, Ulm University, 89081 Ulm, Germany; (K.A.B.); (F.J.)
| | | | - Kappelt G
- Peter Brehm GmbH, 91085 Weisendorf, Germany;
| | - Ignatius A
- Institute of Orthopaedic Research and Biomechanics, Ulm University, 89081 Ulm, Germany; (I.A.); (D.L.)
| | - Dürselen L
- Institute of Orthopaedic Research and Biomechanics, Ulm University, 89081 Ulm, Germany; (I.A.); (D.L.)
| | - Reichel H
- Department of Orthopaedic Surgery, Ulm University, 89081 Ulm, Germany;
| | - Brenner RE
- Department of Orthopaedic Surgery, Division for Biochemistry of Joint and Connective Tissue Diseases, Ulm University, 89081 Ulm, Germany; (K.A.B.); (F.J.)
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29
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Wei Y, Liu L, Gao H, Shi X, Wang Y. In Situ Formation of Hexagon-like Column Array Hydroxyapatite on 3D-Plotted Hydroxyapatite Scaffolds by Hydrothermal Method and Its Effect on Osteogenic Differentiation. ACS APPLIED BIO MATERIALS 2020; 3:1753-1760. [PMID: 35021664 DOI: 10.1021/acsabm.0c00049] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In the preparation of bioactive bone graft materials, surface topography is essential for the ultimate stem cell response. However, the tunable fabrication of surface topography for 3D bioceramic scaffolds is still a technical problem because of the low processability and high brittleness of bioceramics. In this study, an evenly spaced hexagon-like column array surface was fabricated in situ via a hydrothermal method on 3D plotted hydroxyapatite scaffolds. Compared with the Control scaffolds, hydroxyapatite scaffolds with a hexagon-like column array topography possessed a higher crystal orientation degree and specific surface area, which further enhanced fibronectin adsorption. The array topography on the hydroxyapatite scaffolds also showed good biocompatibility with human adipose-derived stem cells (ADSCs). More importantly, the Array scaffolds significantly promoted the expression levels of osteogenic-related genes and proteins compared with the Control scaffolds. The results suggested that the construction of hexagon-like column array topography might be critical for the design of bone regeneration scaffolds with spontaneous stimulation capacity.
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Affiliation(s)
- Yingqi Wei
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, China.,National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou 510006, China.,Guangdong Province Key Laboratory of Biomedical Engineering, South China University of Technology, Guangzhou 510006, China
| | - Lei Liu
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, China.,National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou 510006, China.,Guangdong Province Key Laboratory of Biomedical Engineering, South China University of Technology, Guangzhou 510006, China
| | - Huichang Gao
- School of Medicine, South China University of Technology, Guangzhou 510006, China
| | - Xuetao Shi
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, China.,National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou 510006, China.,Guangdong Province Key Laboratory of Biomedical Engineering, South China University of Technology, Guangzhou 510006, China
| | - Yingjun Wang
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, China.,National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou 510006, China.,Guangdong Province Key Laboratory of Biomedical Engineering, South China University of Technology, Guangzhou 510006, China
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30
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Enhanced osteogenic differentiation of osteoblasts on CaTiO 3 nanotube film. Colloids Surf B Biointerfaces 2020; 187:110773. [PMID: 31926789 DOI: 10.1016/j.colsurfb.2020.110773] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2019] [Revised: 12/13/2019] [Accepted: 01/03/2020] [Indexed: 12/11/2022]
Abstract
Improved implant-bone interface interaction for rapid formation of strong and long-lasting bond is significantly important in orthopedic clinics. Herein, Ca-doped TiO2 nanotube film (M-CaNTs) with enhanced adhesion strength was fabricated on titanium (Ti) surface by an anodization-hydrothermal treatment. Results showed that TiO2 nanotube film (M-NTs) fabricated by modified anodization was amorphous, exhibiting 100-nm diameter and 12-nm tube wall thickness. After hydrothermal treatment, the nanotubular structure of M-CaNTs kept integrated, but was volume-expanded, exhibiting a decreased diameter (∼ 60 nm) and an increased wall thickness (∼ 30 nm). The formation of M-CaNTs proceeded preferentially at the interior surfaces of the closely aligned nanotubes, involving an in situ dissolution-recrystallization process. Though the adhesion strength of M-CaNTs was weakened by the volume-expansion derived internal stress, it was still higher than that of the traditionally obtained one. In the in vitro investigations, the combination of nanotubular structure and Ca2+ could expectedly enhance the attachment, spreading and proliferation of MC3T3-E1 cells, as well as promote the expressions of bone-specific genes, intracellular proteins and ALP activity, which in turn accelerated collagen secretion and ECM mineralization. This work provides an attractive potential for the surface modification of Ti-based implants in clinical application.
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31
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Li Q, Shen A, Wang Z. Enhanced osteogenic differentiation of BMSCs and M2-phenotype polarization of macrophages on a titanium surface modified with graphene oxide for potential implant applications. RSC Adv 2020; 10:16537-16550. [PMID: 35498860 PMCID: PMC9052948 DOI: 10.1039/c9ra10563h] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Accepted: 02/06/2020] [Indexed: 11/23/2022] Open
Abstract
Osseointegration at the bone–implant interface is a complex biological process that is triggered by the immune-inflammatory response and mediated by various cell types such as, bone-forming cells and immune cells, especially macrophages. The polarization of macrophages to inflammatory/regenerative (M1/M2) phenotypes, as well as the osteogenic differentiation of bone marrow mesenchymal stem cells (BMSCs) at the bone–implant interface, significantly affects implant osseointegration and even causes implant failure. Graphene oxide (GO) is a promising candidate for performing implant surface functionalization to modulate the interactions between implants and cells. Herein, we explored the effects of a GO coating on the osteogenic differentiation of BMSCs and the polarization of macrophages to enhance the application of GO surface modification in improving bone–implant integration. In the present study, a large particle sandblasting and acid etching (SLA) surface that is commonly used in clinical practice was selected as the control group, and GO was deposited on the SLA surface by the ultrasonic atomization spraying technique. The surface characteristics of these two groups, including the surface morphology, roughness, wettability, protein adsorption capacity and cell compatibility, were assessed. Then, the effects of GO surface modification on the osteogenic differentiation of BMSCs and the polarization of macrophages were evaluated. The results showed that the GO coating was successfully fabricated on the titanium substrates, which endowed the SLA surface with improved hydrophilicity and protein adsorption capacity and reduced roughness. Compared with the SLA surface, the GO-modified surface significantly enhanced the osteogenic differentiation of BMSCs and the M2-phenotype polarization of macrophages in vitro. This dual-regulatory role is of great significance in achieving rapid osseointegration as well as resolving the poor osseointegration associated with macrophage-related inflammation. Dual roles of graphene oxide modification for enhancing osteogenic differentiation of BMSCs and M2-phenotype polarization of macrophages.![]()
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Affiliation(s)
- Qingfan Li
- Shanghai Engineering Research Center of Tooth Restoration and Regeneration
- Department of Oral Implant
- School of Stomatology
- Tongji University
- Shanghai
| | - Anfeng Shen
- School of Materials Science and Engineering
- University of Shanghai for Science and Technology
- Shanghai
- China
| | - Zuolin Wang
- Shanghai Engineering Research Center of Tooth Restoration and Regeneration
- Department of Oral Implant
- School of Stomatology
- Tongji University
- Shanghai
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32
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Lin X, Chen Q, Xiao Y, Gao Y, Ahmed I, Li M, Li H, Zhang K, Qiu W, Liu X, Boccaccini AR, Qian A. Phosphate glass fibers facilitate proliferation and osteogenesis through Runx2 transcription in murine osteoblastic cells. J Biomed Mater Res A 2019; 108:316-326. [PMID: 31628823 DOI: 10.1002/jbm.a.36818] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2019] [Revised: 10/03/2019] [Accepted: 10/10/2019] [Indexed: 12/14/2022]
Abstract
Cell-material interactions and compatibility are important aspects of bioactive materials for bone tissue engineering. Phosphate glass fiber (PGF) is an attractive inorganic filler with fibrous structure and tunable composition, which has been widely investigated as a bioactive filler for bone repair applications. However, the interaction of osteoblasts with PGFs has not been widely investigated to elucidate the osteogenic mechanism of PGFs. In this study, different concentrations of short PGFs with interlaced oriented topography were cocultured with MC3T3-E1 cells for different periods, and the synergistic effects of fiber topography and ionic product of PGFs on osteoblast responses including cell adhesion, spreading, proliferation, and osteogenic differentiation were investigated. It was found that osteoblasts were more prone to adhere on PGFs through Vinculin protein, leading to enhanced cell proliferation with polygonal cell shape and spreading cellular actin filaments. In addition, osteoblasts incubated on PGF meshes showed enhanced alkaline phosphatase activity, extracellular matrix mineralization, and increased expression of osteogenesis-related marker genes, which could be attributed to the Wnt/β-catenin/Runx2 signaling pathway. This study elucidated the possible mechanism of PGF on triggering specific osteoblast behavior, which would be highly beneficial for designing PGF-based bone graft substitutes with excellent osteogenic functions.
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Affiliation(s)
- Xiao Lin
- Lab for Bone Metabolism, Key Lab for Space Biosciences and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, China.,Research Center for Special Medicine and Health Systems Engineering, School of Life Sciences, Northwestern Polytechnical University, Xi'an, China.,NPU-UAB Joint Laboratory for Bone Metabolism, School of Life Sciences, Northwestern Polytechnical University, Xi'an, China
| | - Qiang Chen
- State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an, China
| | - Yunyun Xiao
- Lab for Bone Metabolism, Key Lab for Space Biosciences and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, China.,Research Center for Special Medicine and Health Systems Engineering, School of Life Sciences, Northwestern Polytechnical University, Xi'an, China.,NPU-UAB Joint Laboratory for Bone Metabolism, School of Life Sciences, Northwestern Polytechnical University, Xi'an, China
| | - Yongguang Gao
- Lab for Bone Metabolism, Key Lab for Space Biosciences and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, China.,Research Center for Special Medicine and Health Systems Engineering, School of Life Sciences, Northwestern Polytechnical University, Xi'an, China.,NPU-UAB Joint Laboratory for Bone Metabolism, School of Life Sciences, Northwestern Polytechnical University, Xi'an, China
| | - Ifty Ahmed
- Faculty of Engineering, Advanced Materials Research Group, University of Nottingham, Nottingham, UK
| | - Meng Li
- School of Life Sciences, Northwestern Polytechnical University, Xi'an, China
| | - Hui Li
- Honghui Hospital, Xi'an Jiaotong University, Xi'an, China
| | - Kewen Zhang
- Lab for Bone Metabolism, Key Lab for Space Biosciences and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, China.,Research Center for Special Medicine and Health Systems Engineering, School of Life Sciences, Northwestern Polytechnical University, Xi'an, China.,NPU-UAB Joint Laboratory for Bone Metabolism, School of Life Sciences, Northwestern Polytechnical University, Xi'an, China
| | - Wuxia Qiu
- Lab for Bone Metabolism, Key Lab for Space Biosciences and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, China.,Research Center for Special Medicine and Health Systems Engineering, School of Life Sciences, Northwestern Polytechnical University, Xi'an, China.,NPU-UAB Joint Laboratory for Bone Metabolism, School of Life Sciences, Northwestern Polytechnical University, Xi'an, China
| | - Xianhu Liu
- National Engineering Research Center for Advanced Polymer Processing Technology, Zhengzhou University, Zhengzhou, China
| | - Aldo R Boccaccini
- Institute of Biomaterials, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Airong Qian
- Lab for Bone Metabolism, Key Lab for Space Biosciences and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, China.,Research Center for Special Medicine and Health Systems Engineering, School of Life Sciences, Northwestern Polytechnical University, Xi'an, China.,NPU-UAB Joint Laboratory for Bone Metabolism, School of Life Sciences, Northwestern Polytechnical University, Xi'an, China
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Zhao J, Liu S, Zhang W, Ni L, Hu Z, Sheng Z, Yin B. MiR-128 inhibits the osteogenic differentiation in osteoporosis by down-regulating SIRT6 expression. Biosci Rep 2019; 39:BSR20191405. [PMID: 31477582 PMCID: PMC6757182 DOI: 10.1042/bsr20191405] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Revised: 08/11/2019] [Accepted: 08/19/2019] [Indexed: 01/26/2023] Open
Abstract
Background: MicroRNAs (miRNAs) are involved in the regulation of osteogenic differentiation and chondrification in vivo The purpose of the present study was to explore the potential mechanism of miR-128 in osteoporosis (OP).Methods: Quantitative real-time PCR (qRT-PCR) was used to determine the expression of miR-128 in femoral neck trabecular bones of OP patients (n=40) and non-OP patients (n=40). C2C12 cells were transfected with miR-128 mimic or inhibitor to determine the effect of miR-128 on osteoblastic differentiation of C2C12 cells. Bioinformatics and luciferase reporter genes were used to determine the molecular mechanism of miR-128 in osteoblastic differentiation of C2C12 cells.Results: The qRT-PCR results showed that the expression level of miR-128 in bone samples of OP patients was significantly higher than that of non-OP patients, while miR-128 was significantly down-regulated during the osteogenic differentiation of C2C12 cells. In addition, the results showed that overexpression of miR-128 significantly inhibited the mRNA and protein expression levels of osteocalcin (OC), alkaline phosphatase (ALP) and collagen I type-α1 (COL1A1) in C2C12 cells, while miR-128 inhibitor could reverse this effect. Bioinformatics analysis and dual-luciferase reporter assay found that silencing information regulatory protein 6 (SIRT6) was a direct target of miR-128. The qRT-PCR and Western Blot results found that miR-128 significantly down-regulated the mRNA and protein expressions of SIRT6. Furthermore, silencing SIRT6 significantly inhibited the promoting effect of the miR-128 inhibitor on the expression of osteoblast markers.Conclusion: The above results confirmed that miR-128 inhibited osteoblast differentiation in OP by down-regulating SIRT6 expression, thus accelerating the development of OP.
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Affiliation(s)
- Jindong Zhao
- Department of Spinal Surgery, The Fifth Hospital of Harbin, Harbin City 150040, Heilongjiang Province, P.R. China
| | - Shaohui Liu
- Department of Spinal Surgery, The Fifth Hospital of Harbin, Harbin City 150040, Heilongjiang Province, P.R. China
| | - Wenhui Zhang
- Department of Spinal Surgery, The Fifth Hospital of Harbin, Harbin City 150040, Heilongjiang Province, P.R. China
| | - Linying Ni
- Department of Orthopedic, The third affiliated hospital of Harbin Medical University, Harbin City 150040, Heilongjiang Province, P.R. China
| | - Zhenming Hu
- Department of Orthopedic, The First Affiliated Hospital of Chongqing Medical University, Chongqing City 400000, P.R. China
| | - Zhigang Sheng
- Department of Spinal Surgery, The Fifth Hospital of Harbin, Harbin City 150040, Heilongjiang Province, P.R. China
| | - Bo Yin
- Department of Spinal Surgery, The Fifth Hospital of Harbin, Harbin City 150040, Heilongjiang Province, P.R. China
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Li K, Xia C, Qiao Y, Liu X. Dose-response relationships between copper and its biocompatibility/antibacterial activities. J Trace Elem Med Biol 2019; 55:127-135. [PMID: 31345350 DOI: 10.1016/j.jtemb.2019.06.015] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Revised: 06/06/2019] [Accepted: 06/19/2019] [Indexed: 11/22/2022]
Abstract
BACKGROUND Copper has already been widely used in the modification of biomaterials because it possesses multifunctional biological effects like osteogenic, angiogenic and antibacterial activities. However, it is still not clear how different cell lines and bacteria will respond to different concentrations of Cu2+, which is very critical to the application of copper-doped implants. METHODS This study aimed to explore the dose-response relationships of Cu2+ and its biological effects in vitro. Rat bone marrow mesenchymal stem cell (rBMSCs), mouse osteoblastic cell line (MC3T3-E1), and human umbilical vein endothelial cells (HUVECs) were used to evaluate cellular behaviors. Staphylococcus aureus (S. aureus) and Escherichia coli (E. coli) were used to evaluate bacterial behaviors. RESULTS Results showed that the HUVECs exhibited significantly higher tolerance to copper ions than MC3T3-E1 and rBMSCs. The IC50 values of copper for HUVECs, MC3T3-E1 and HUVECs were approximated to 327.9 μM, 134.6 μM, and 0.7 μM, respectively. Besides, the threshold concentration of copper for effective inhibition against bacteria growth is 37 μM. When the concentration exceeded the threshold value, antibacterial activity could increase dramatically. CONCLUSIONS These results altogether establish a technological foundation for the application of copper-doped biomaterials in bone growth and remodeling.
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Affiliation(s)
- Kunqiang Li
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China; Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Chao Xia
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China; Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yuqin Qiao
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China.
| | - Xuanyong Liu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China; Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China.
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35
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Li X, Yin HM, Su K, Zheng GS, Mao CY, Liu W, Wang P, Zhang Z, Xu JZ, Li ZM, Liao GQ. Polydopamine-Assisted Anchor of Chitosan onto Porous Composite Scaffolds for Accelerating Bone Regeneration. ACS Biomater Sci Eng 2019; 5:2998-3006. [PMID: 33405654 DOI: 10.1021/acsbiomaterials.9b00209] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Surface function has an importance for the bioactivity of porous polymeric scaffolds. The goal of the present study is to immobilize highly bioactive chitosan (CS) onto the surface of porous composite scaffolds to accelerate bone regeneration. Porous poly(ε-caprolactone) (PCL)/bioactive glass (BG) composite scaffolds with strong anchor of CS were fabricated via mussel-inspired polydopamine (PDA) coating as a bridging layer. In vitro cell culture showed that firm immobilization of CS onto the composite scaffolds significantly enhanced protein adsorption, cell adhesion, and osteogenic differentiation compared to CS-decorated scaffolds via physical adsorption. In vivo assessments demonstrated that covalent immobilization of CS onto the surface of scaffolds obviously promoted cranial bone regeneration in comparison with the counterparts with physical adsorption of CS. The proposed method offers a feasible and effective means to fabricate artificial bioactive scaffolds for bone tissue engineering application.
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Affiliation(s)
- Xiang Li
- Department of Oral and Maxillofacial Surgery, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
| | - Hua-Mo Yin
- College of Polymer Science and Engineering and State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Kai Su
- Department of Oral and Maxillofacial Surgery, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
| | - Guang-Sen Zheng
- Department of Oral and Maxillofacial Surgery, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
| | - Chao-Ying Mao
- College of Polymer Science and Engineering and State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Wei Liu
- College of Polymer Science and Engineering and State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Peng Wang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Zhen Zhang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Jia-Zhuang Xu
- College of Polymer Science and Engineering and State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Zhong-Ming Li
- College of Polymer Science and Engineering and State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Gui-Qing Liao
- Department of Oral and Maxillofacial Surgery, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
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36
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Xu X, Li Y, Wang L, Li Y, Pan J, Fu X, Luo Z, Sui Y, Zhang S, Wang L, Ni Y, Zhang L, Wei S. Triple-functional polyetheretherketone surface with enhanced bacteriostasis and anti-inflammatory and osseointegrative properties for implant application. Biomaterials 2019; 212:98-114. [PMID: 31112825 DOI: 10.1016/j.biomaterials.2019.05.014] [Citation(s) in RCA: 106] [Impact Index Per Article: 21.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Revised: 05/08/2019] [Accepted: 05/08/2019] [Indexed: 12/14/2022]
Abstract
Polyetheretherketone (PEEK) is considered a potential orthopedic/dental material because of its excellent mechanical and chemical properties (e.g., similar elastic modulus to that of human bone). However, the poor bacteriostasis and anti-inflammatory and osseointegrative properties of bioinert PEEK impede its clinical application. We previously developed a facile and versatile surface modification method using dexamethasone plus minocycline-loaded liposomes (Dex/Mino liposomes) bonded by a mussel-inspired polydopamine coating, which effectively modulated cell inflammatory response and discouraged bacterial colonization in vitro. Herein, we report the application of this multifunctional surface modification method to improve bioinert PEEK, aimed at further studying the in vitro osteogenesis and in vivo properties of Dex/Mino liposome-modified PEEK to prevent bacterial contamination, attenuate the inflammatory response, and enhance ossification for physiologic osseointegration. Our study established that the Dex/Mino liposome-modified PEEK surface presented favorable stability and cytocompatibility. Compared with bare PEEK, improved osteogenic differentiation of human mesenchymal stem cells under both osteoinductive and osteoconductive conditions was found on the functionalized surface due to the liposomal Dex releasing. In vivo bacteriostasis assay confirmed that Mino released from the functionalized surface provided an effective antibacterial effect. Moreover, the subcutaneous foreign body reaction and beagle femur implantation models corroborated the enhanced anti-inflammatory and osteointegrative properties of the functionalized PEEK. Our findings indicate that the developed Dex/Mino liposome-modified PEEK with enhanced antibacterial, anti-inflammatory, and osseointegrative capacity has great potential as an orthopedic/dental implant material for clinical application.
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Affiliation(s)
- Xiao Xu
- Department of Oral and Maxillofacial Surgery/Central Laboratory, Peking University School and Hospital of Stomatology, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Beijing 100081, PR China
| | - Yongliang Li
- Second Dental Center, School and Hospital of Stomatology, Peking University, Beijing 100081, PR China
| | - Lixin Wang
- Department of Stomatology, Beijing Shijitan Hospital, Capital Medical University, Beijing 100038, PR China
| | - Yan Li
- Laboratory of Biomaterials and Regenerative Medicine, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, PR China
| | - Jijia Pan
- Laboratory of Biomaterials and Regenerative Medicine, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, PR China
| | - Xiaoming Fu
- Department of Oral and Maxillofacial Surgery/Central Laboratory, Peking University School and Hospital of Stomatology, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Beijing 100081, PR China
| | - Zuyuan Luo
- Laboratory of Biomaterials and Regenerative Medicine, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, PR China
| | - Yi Sui
- Department of Oral and Maxillofacial Surgery/Central Laboratory, Peking University School and Hospital of Stomatology, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Beijing 100081, PR China
| | - Siqi Zhang
- Laboratory of Biomaterials and Regenerative Medicine, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, PR China
| | - Liang Wang
- Department of Oral and Maxillofacial Surgery/Central Laboratory, Peking University School and Hospital of Stomatology, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Beijing 100081, PR China
| | - Yaofeng Ni
- Department of Stomatology, Beijing Shijitan Hospital, Capital Medical University, Beijing 100038, PR China
| | - Lei Zhang
- Department of Oral and Maxillofacial Surgery/Central Laboratory, Peking University School and Hospital of Stomatology, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Beijing 100081, PR China.
| | - Shicheng Wei
- Department of Oral and Maxillofacial Surgery/Central Laboratory, Peking University School and Hospital of Stomatology, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Beijing 100081, PR China; Laboratory of Biomaterials and Regenerative Medicine, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, PR China.
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Cigarette Smoke Extract Exposure: Effects on the Interactions between Titanium Surface and Osteoblasts. BIOMED RESEARCH INTERNATIONAL 2019; 2019:8759568. [PMID: 31143776 PMCID: PMC6501272 DOI: 10.1155/2019/8759568] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Revised: 03/22/2019] [Accepted: 04/08/2019] [Indexed: 11/18/2022]
Abstract
The aim of this study was to explore the changes in the characteristics of titanium surface and the osteoblast-titanium interactions under cigarette smoke extract (CSE) exposure. In this study, CSE was used to simulate the oral liquid environment around the implant under cigarette smoke exposure. Titanium samples were immersed in CSE to explore the changes in the characteristics of titanium surface. The physical properties of titanium surface were measured, including surface micromorphology, surface elemental composition, roughness, and surface hydrophilicity. MC3T3-E1 cells were cultured on the titanium surface in vitro under different concentrations of CSE exposure, and cell adhesion, cell proliferation, and osteogenic differentiation were observed. The surface micromorphology and elemental composition of titanium surface changed under CSE exposure. No obvious changes were found in the surface roughness and the hydrophilicity of titanium samples. Moreover, the results of in vitro study showed that CSE exposure downregulated the cell spreading, proliferation, and osteogenic differentiation of MC3T3-E1 cells on the titanium surface. It could be speculated that some carbon-containing compounds from CSE adsorbed on the titanium surface and the osteoblast-titanium interactions were influenced under CSE exposure. It is hoped that these results could provide valuable information for further studies on smoking-mediated inhibition of implants osseointegration.
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Park C, Seong YJ, Kang IG, Song EH, Lee H, Kim J, Jung HD, Kim HE, Jang TS. Enhanced Osseointegration Ability of Poly(lactic acid) via Tantalum Sputtering-Based Plasma Immersion Ion Implantation. ACS APPLIED MATERIALS & INTERFACES 2019; 11:10492-10504. [PMID: 30802030 DOI: 10.1021/acsami.8b21363] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Poly(lactic acid) (PLA) is the most utilized biodegradable polymer in orthopedic implant applications because of its ability to replace regenerated bone tissue via continuous degradation over time. However, the poor osteoblast affinity for PLA results in a high risk of early implant failure, and this issue remains one of the most difficult challenges with this technology. In this study, we demonstrate the use of a new technique in which plasma immersion ion implantation (PIII) is combined with a conventional DC magnetron sputtering. This technique, referred to as sputtering-based PIII (S-PIII), makes it possible to produce a tantalum (Ta)-implanted PLA surface within 30 s without any tangible degradation or deformation of the PLA substrate. Compared to a Ta-coated PLA surface, the Ta-implanted PLA showed twice the surface roughness and substantially enhanced adhesion stability in dry and wet conditions. The strong hydrophobic surface properties and biologically relatively inert chemical structure of PLA were ameliorated by Ta S-PIII treatment, which produced a moderate hydrophilic surface and enhanced cell-material interactions. Furthermore, in an in vivo evaluation in a rabbit distal femur implantation model, Ta-implanted PLA demonstrated significantly enhanced osseointegration and osteogenesis compared with bare PLA. These results indicate that the Ta-implanted PLA has great potential for orthopedic implant applications.
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Affiliation(s)
- Cheonil Park
- Department of Materials Science and Engineering , Seoul National University , Seoul 08826 , Korea
| | - Yun-Jeong Seong
- Department of Materials Science and Engineering , Seoul National University , Seoul 08826 , Korea
| | - In-Gu Kang
- Department of Materials Science and Engineering , Seoul National University , Seoul 08826 , Korea
| | - Eun-Ho Song
- Department of Materials Science and Engineering , Seoul National University , Seoul 08826 , Korea
| | - Hyun Lee
- Department of Materials Science and Engineering , Seoul National University , Seoul 08826 , Korea
| | - Jinyoung Kim
- Department of Materials Science and Engineering , Seoul National University , Seoul 08826 , Korea
| | - Hyun-Do Jung
- Liquid Processing & Casting Technology R&D Group , Korea Institute of Industrial Technology , Incheon 21999 , Korea
| | - Hyoun-Ee Kim
- Department of Materials Science and Engineering , Seoul National University , Seoul 08826 , Korea
| | - Tae-Sik Jang
- Liquid Processing & Casting Technology R&D Group , Korea Institute of Industrial Technology , Incheon 21999 , Korea
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Wang H, Lin C, Zhang X, Lin K, Wang X, Shen SG. Mussel-Inspired Polydopamine Coating: A General Strategy To Enhance Osteogenic Differentiation and Osseointegration for Diverse Implants. ACS APPLIED MATERIALS & INTERFACES 2019; 11:7615-7625. [PMID: 30689334 DOI: 10.1021/acsami.8b21558] [Citation(s) in RCA: 82] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Surface modifications play an important role in endowing implant surface with excellent biocompatibility and bioactivity. Among the bioinspired surface modifications, the mussel-inspired polydopamine (PDA) has aroused great interest of researchers. Herein, we fabricated PDA on diverse implant surfaces, including biopolymer, biometal, and bioceramic. Then the effects of PDA coating on cell responsive behaviors in vitro and bone formation capacity in vivo were evaluated in detail. The results showed that PDA coating was fabricated on diverse samples surface successfully, which could significantly improve the hydrophilicity of different material surfaces. Furthermore, the results indicated that PDA coating exerted direct enhancing on the adhesion, proliferation and osteogenic differentiation of bone marrow derived mesenchymal stromal cells (BMSCs) through FAK and p38 signaling pathways. During the process, the focal adhesion protein expression and osteogenic-related genes expression level (e.g., ALP, BMP2, BSP, and OPN) were considerably upregulated. Most importantly, the in vivo study confirmed that PDA coating remarkably accelerated new bone formation and enhanced osseointegration performance. Our study uncovered the biological responses stimulated by PDA coating to make a better understanding of cell/tissue-PDA interactions and affirmed that PDA, a bioinspired polymer, has great potential as a candidate and functional bioactive coating medium in bone regeneration and orthopedic application.
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Affiliation(s)
- Hui Wang
- School and Hospital of Stomatology and Shanghai Engineering Research Center of Tooth Restoration and Regeneration , Tongji University , Shanghai 200072 , China
| | - Chucheng Lin
- Shanghai Institute of Ceramics , Chinese Academy of Sciences , Shanghai 200050 , China
| | - Xinran Zhang
- School and Hospital of Stomatology and Shanghai Engineering Research Center of Tooth Restoration and Regeneration , Tongji University , Shanghai 200072 , China
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Wang T, Qian S, Zha GC, Zhao XJ, Ding L, Sun JY, Li B, Liu XY. Synergistic effects of titania nanotubes and silicon to enhance the osteogenic activity. Colloids Surf B Biointerfaces 2018; 171:419-426. [PMID: 30075417 DOI: 10.1016/j.colsurfb.2018.07.052] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2018] [Revised: 07/10/2018] [Accepted: 07/23/2018] [Indexed: 11/29/2022]
Abstract
In this study, titania nanotubes (TNTs) incorporating silicon (Si) were formed on Ti disks using anodization and electron beam evaporation (EBE) technology to improve the osteogenic activity. The amount of Si was exquisitely adjusted by controlling the duration of EBE to optimize the biofunctionality. As the Si was incorporated, the samples exhibited hydrophilic surfaces. Long lasting and controllable Si release was observed from the EBE-modified samples without cytotoxicity. Moreover, initial cell adhesion, spreading, proliferation and osteogenic differentiation of MC3T3-E1 cells were evaluated. The results showed a notable enhancement of spreading, osteogenesis and differentiation of cells on silicon-coated TNTs (Si-TNTs). In particular, samples with highest amount of silicon (∼5.93% Si) displayed greatest augmentation of ALP activity, osteogenic-related gene expression and mineralization compared to the others in the present study. It was indicated that the modification with TNTs and appropriated Si content resulted in enhanced osteoblastic spreading, proliferation and differentiation, and therefore has the potential for future applications in the field of orthopedics.
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Affiliation(s)
- Tao Wang
- Department of Orthopedics, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu 214062, China; School of Medicine, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Shi Qian
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China
| | - Guo-Chun Zha
- Department of Orthopedics, the Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu 221002, China
| | - Xi-Jiang Zhao
- Department of Orthopedics, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu 214062, China
| | - Lei Ding
- School of Medicine, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Jun-Ying Sun
- Department of Orthopedics, the First Affiliated Hospital, Orthopaedic Institute, Soochow University, Suzhou, Jiangsu 215006, China.
| | - Bin Li
- Department of Orthopedics, the First Affiliated Hospital, Orthopaedic Institute, Soochow University, Suzhou, Jiangsu 215006, China.
| | - Xuan-Yong Liu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China.
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Rodríguez AP, Sánchez MA, Felice B, Zamora ML, Tsujigiwa H, Takabatake K, Kawai H, Nakano K, Nagatsuka H. In Vitro Efficacy of CaCO 3 Content in CaTiO 3– CaCO 3 Composites for Bone Growth. J HARD TISSUE BIOL 2018. [DOI: 10.2485/jhtb.27.250] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Andrea Paola Rodríguez
- Department of Oral Pathology and Medicine, Graduate School of Medicine, Dentistry and Pharmaceutical Science, Okayama University
- Laboratorio de Medios e Interfases, Departamento de Bioingeniería, Universidad Nacional de Tucumán, Consejo Nacional de Investigaciones Científicas y Técnicas
| | - María Alejandra Sánchez
- Laboratorio de Medios e Interfases, Departamento de Bioingeniería, Universidad Nacional de Tucumán, Consejo Nacional de Investigaciones Científicas y Técnicas
| | - Betiana Felice
- Laboratorio de Medios e Interfases, Departamento de Bioingeniería, Universidad Nacional de Tucumán, Consejo Nacional de Investigaciones Científicas y Técnicas
| | - Martín Lucas Zamora
- Laboratorio de Medios e Interfases, Departamento de Bioingeniería, Universidad Nacional de Tucumán, Consejo Nacional de Investigaciones Científicas y Técnicas
| | - Hidetsugu Tsujigiwa
- Department of Life Science, Faculty of Science, Okayama University of Science
| | - Kiyofumi Takabatake
- Department of Oral Pathology and Medicine, Graduate School of Medicine, Dentistry and Pharmaceutical Science, Okayama University
| | - Hotaka Kawai
- Department of Oral Pathology and Medicine, Graduate School of Medicine, Dentistry and Pharmaceutical Science, Okayama University
| | - Keisuke Nakano
- Department of Oral Pathology and Medicine, Graduate School of Medicine, Dentistry and Pharmaceutical Science, Okayama University
| | - Hitoshi Nagatsuka
- Department of Oral Pathology and Medicine, Graduate School of Medicine, Dentistry and Pharmaceutical Science, Okayama University
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Zhai X, Ruan C, Ma Y, Cheng D, Wu M, Liu W, Zhao X, Pan H, Lu WW. 3D-Bioprinted Osteoblast-Laden Nanocomposite Hydrogel Constructs with Induced Microenvironments Promote Cell Viability, Differentiation, and Osteogenesis both In Vitro and In Vivo. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2018; 5:1700550. [PMID: 29593958 PMCID: PMC5867050 DOI: 10.1002/advs.201700550] [Citation(s) in RCA: 106] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Revised: 10/06/2017] [Indexed: 05/19/2023]
Abstract
An osteoblast-laden nanocomposite hydrogel construct, based on polyethylene glycol diacrylate (PEGDA)/laponite XLG nanoclay ([Mg5.34Li0.66Si8O20(OH)4]Na0.66, clay)/hyaluronic acid sodium salt (HA) bio-inks, is developed by a two-channel 3D bioprinting method. The novel biodegradable bio-ink A, comprised of a poly(ethylene glycol) (PEG)-clay nanocomposite crosslinked hydrogel, is used to facilitate 3D-bioprinting and enables the efficient delivery of oxygen and nutrients to growing cells. HA with encapsulated primary rat osteoblasts (ROBs) is applied as bio-ink B with a view to improving cell viability, distribution uniformity, and deposition efficiency. The cell-laden PEG-clay constructs not only encapsulated osteoblasts with more than 95% viability in the short term but also exhibited excellent osteogenic ability in the long term, due to the release of bioactive ions (magnesium ions, Mg2+ and silicon ions, Si4+), which induces the suitable microenvironment to promote the differentiation of the loaded exogenous ROBs, both in vitro and in vivo. This 3D-bioprinting method holds much promise for bone tissue regeneration in terms of cell engraftment, survival, and ultimately long-term function.
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Affiliation(s)
- Xinyun Zhai
- Research Center for Human Tissue and Organs DegenerationInstitute Biomedical and BiotechnologyShenzhen Institutes of Advanced TechnologyChinese Academy of SciencesShenzhen518055China
- Department of Orthopaedic and TraumatologyThe University of Hong Kong21 Sassoon RoadPokfulamHong Kong999077China
- School of Materials Science and EngineeringTianjin Key Laboratory of Composite and Functional MaterialsTianjin UniversityTianjin300352China
| | - Changshun Ruan
- Research Center for Human Tissue and Organs DegenerationInstitute Biomedical and BiotechnologyShenzhen Institutes of Advanced TechnologyChinese Academy of SciencesShenzhen518055China
| | - Yufei Ma
- Research Center for Human Tissue and Organs DegenerationInstitute Biomedical and BiotechnologyShenzhen Institutes of Advanced TechnologyChinese Academy of SciencesShenzhen518055China
| | - Delin Cheng
- Research Center for Human Tissue and Organs DegenerationInstitute Biomedical and BiotechnologyShenzhen Institutes of Advanced TechnologyChinese Academy of SciencesShenzhen518055China
| | - Mingming Wu
- Research Center for Human Tissue and Organs DegenerationInstitute Biomedical and BiotechnologyShenzhen Institutes of Advanced TechnologyChinese Academy of SciencesShenzhen518055China
| | - Wenguang Liu
- School of Materials Science and EngineeringTianjin Key Laboratory of Composite and Functional MaterialsTianjin UniversityTianjin300352China
| | - Xiaoli Zhao
- Research Center for Human Tissue and Organs DegenerationInstitute Biomedical and BiotechnologyShenzhen Institutes of Advanced TechnologyChinese Academy of SciencesShenzhen518055China
| | - Haobo Pan
- Research Center for Human Tissue and Organs DegenerationInstitute Biomedical and BiotechnologyShenzhen Institutes of Advanced TechnologyChinese Academy of SciencesShenzhen518055China
| | - William Weijia Lu
- Department of Orthopaedic and TraumatologyThe University of Hong Kong21 Sassoon RoadPokfulamHong Kong999077China
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Zhang J, Cai L, Wang T, Tang S, Li Q, Tang T, Wei S, Qian J, Wei J, Su J. Lithium doped silica nanospheres/poly(dopamine) composite coating on polyetheretherketone to stimulate cell responses, improve bone formation and osseointegration. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2018; 14:965-976. [PMID: 29408735 DOI: 10.1016/j.nano.2018.01.017] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Revised: 01/17/2018] [Accepted: 01/22/2018] [Indexed: 10/18/2022]
Abstract
Osseointegration is crucial for early fixation as well as long-term success of orthopedic implants. Bioactive composite containing lithium doping silica nanospheres (LSNs) and poly(dopamine) (PDA) were coated on polyetheretherketone (PK) surface (LPPK), and effects of the LSNs/PDA composite (LPC) coating on the biological properties of LPPK were assessed both in vitro and in vivo. Results showed that LPPK with improved bioactivity remarkably promoted apatite mineralization in simulated body fluid (SBF) compared with PDA coated on PK (PPK) and PK. Moreover, the LPPK remarkably stimulated rat bone marrow stromal cells (rBMSCs) responses compared with PPK and PK. Furthermore, the LPPK significantly promoted bone tissues responses in vivo compared with PPK and PK. It could be suggested that the improvements of cells and bone tissues responses were attributed to the surface characteristics of the bioactive LPC coating on LPPK. The LPPK would be a great candidate for orthopedic and dental applications.
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Affiliation(s)
- Jue Zhang
- Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai, China
| | - Liang Cai
- Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai, China
| | - Tinglan Wang
- Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai, China
| | - Songchao Tang
- Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai, China
| | - Quan Li
- Department of Orthopaedics Trauma, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Tingting Tang
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiaotong University, School of Medicine, Shanghai, PR China
| | - Shicheng Wei
- Department of Oral and Maxillofacial Surgery, Laboratory of Interdisciplinary Studies, School and Hospital of Stomatology, Peking University, Beijing, China
| | - Jun Qian
- Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai, China
| | - Jie Wei
- Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai, China.
| | - Jiacan Su
- Department of Orthopaedics Trauma, Changhai Hospital, Second Military Medical University, Shanghai, China.
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A lithium-containing nanoporous coating on entangled titanium scaffold can enhance osseointegration through Wnt/β-catenin pathway. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2018; 14:153-164. [DOI: 10.1016/j.nano.2017.09.006] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2017] [Revised: 08/18/2017] [Accepted: 09/15/2017] [Indexed: 01/06/2023]
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45
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Yuan X, Cao H, Wang J, Tang K, Li B, Zhao Y, Cheng M, Qin H, Liu X, Zhang X. Immunomodulatory Effects of Calcium and Strontium Co-Doped Titanium Oxides on Osteogenesis. Front Immunol 2017; 8:1196. [PMID: 29033930 PMCID: PMC5626827 DOI: 10.3389/fimmu.2017.01196] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2017] [Accepted: 09/11/2017] [Indexed: 01/07/2023] Open
Abstract
The effects of calcium (Ca) or strontium (Sr) on host osteogenesis and immune responses have been investigated separately. In clinical practice, these two elements may both be present around an orthopedic device, but their potential synergistic effects on osteogenesis and the immune response have not been explored to date. In this work, we investigated the immunomodulatory effects of Ca and Sr co-doped titanium oxides on osteogenesis in vitro using the mouse macrophage cell line RAW 264.7 alone and in co-culture with mouse bone mesenchymal stem cells (BMSCs), and in vivo using a mouse air-pouch model. Coatings containing Ca and Sr at different concentration ratios were fabricated on titanium substrates using micro-arc oxidation and electrochemical treatment. The in vitro and in vivo results demonstrated that the Ca and Sr concentration ratio has a marked influence on macrophage polarization. The coating with a Ca/Sr ratio of 2:1 was superior to those with other Ca and/or Sr concentrations in terms of modulating M2 polarization, which enhanced osteogenic differentiation of mouse BMSCs in co-culture. These findings suggest that the osteoimmunomodulatory effect of a titanium-oxide coating can be enhanced by modulating the concentration ratio of its components.
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Affiliation(s)
- Xiangwei Yuan
- Department of Orthopedics, Shanghai Sixth People's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Huiliang Cao
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, China
| | - Jiaxing Wang
- Department of Orthopedics, Shanghai Sixth People's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Kaiwei Tang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, China
| | - Bin Li
- Department of Orthopedics, Shanghai Sixth People's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Yaochao Zhao
- Department of Orthopedics, Shanghai Sixth People's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Mengqi Cheng
- Department of Orthopedics, Shanghai Sixth People's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Hui Qin
- Department of Orthopedics, Shanghai Sixth People's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Xuanyong Liu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, China
| | - Xianlong Zhang
- Department of Orthopedics, Shanghai Sixth People's Hospital, Shanghai Jiao Tong University, Shanghai, China
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Zhang X, Chen J, Pei X, Wang J, Wan Q, Jiang S, Huang C, Pei X. Enhanced Osseointegration of Porous Titanium Modified with Zeolitic Imidazolate Framework-8. ACS APPLIED MATERIALS & INTERFACES 2017; 9:25171-25183. [PMID: 28696091 DOI: 10.1021/acsami.7b07800] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Xin Zhang
- State
Key Laboratory of Oral Diseases, National Clinical Research
Center for Oral Diseases, §Department of Prosthodontics, West China Hospital of
Stomatology, ⊥Postanesthesia Care Unit, West China Hospital of Stomatology, and ∥College of Chemistry, Sichuan University, Chengdu 610000, P.R. China
| | - Junyu Chen
- State
Key Laboratory of Oral Diseases, National Clinical Research
Center for Oral Diseases, §Department of Prosthodontics, West China Hospital of
Stomatology, ⊥Postanesthesia Care Unit, West China Hospital of Stomatology, and ∥College of Chemistry, Sichuan University, Chengdu 610000, P.R. China
| | - Xiang Pei
- State
Key Laboratory of Oral Diseases, National Clinical Research
Center for Oral Diseases, §Department of Prosthodontics, West China Hospital of
Stomatology, ⊥Postanesthesia Care Unit, West China Hospital of Stomatology, and ∥College of Chemistry, Sichuan University, Chengdu 610000, P.R. China
| | - Jian Wang
- State
Key Laboratory of Oral Diseases, National Clinical Research
Center for Oral Diseases, §Department of Prosthodontics, West China Hospital of
Stomatology, ⊥Postanesthesia Care Unit, West China Hospital of Stomatology, and ∥College of Chemistry, Sichuan University, Chengdu 610000, P.R. China
| | - Qianbing Wan
- State
Key Laboratory of Oral Diseases, National Clinical Research
Center for Oral Diseases, §Department of Prosthodontics, West China Hospital of
Stomatology, ⊥Postanesthesia Care Unit, West China Hospital of Stomatology, and ∥College of Chemistry, Sichuan University, Chengdu 610000, P.R. China
| | - Shaokang Jiang
- State
Key Laboratory of Oral Diseases, National Clinical Research
Center for Oral Diseases, §Department of Prosthodontics, West China Hospital of
Stomatology, ⊥Postanesthesia Care Unit, West China Hospital of Stomatology, and ∥College of Chemistry, Sichuan University, Chengdu 610000, P.R. China
| | - Chao Huang
- State
Key Laboratory of Oral Diseases, National Clinical Research
Center for Oral Diseases, §Department of Prosthodontics, West China Hospital of
Stomatology, ⊥Postanesthesia Care Unit, West China Hospital of Stomatology, and ∥College of Chemistry, Sichuan University, Chengdu 610000, P.R. China
| | - Xibo Pei
- State
Key Laboratory of Oral Diseases, National Clinical Research
Center for Oral Diseases, §Department of Prosthodontics, West China Hospital of
Stomatology, ⊥Postanesthesia Care Unit, West China Hospital of Stomatology, and ∥College of Chemistry, Sichuan University, Chengdu 610000, P.R. China
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Won S, Huh YH, Cho LR, Lee HS, Byon ES, Park CJ. Cellular Response of Human Bone Marrow Derived Mesenchymal Stem Cells to Titanium Surfaces Implanted with Calcium and Magnesium Ions. Tissue Eng Regen Med 2017; 14:123-131. [PMID: 30603469 PMCID: PMC6171587 DOI: 10.1007/s13770-017-0028-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Revised: 05/03/2016] [Accepted: 05/15/2016] [Indexed: 01/14/2023] Open
Abstract
Surface characteristics and cellular response to titanium surfaces that had been implanted with calcium and magnesium ions using plasma immersion ion implantation and deposition (PIIID) were evaluated. Three different titanium surfaces were analyzed: a resorbable blast media (RBM) surface (blasted with hydroxyapatite grit), a calcium ion-implanted surface, and a magnesium ion-implanted surface. The surface characteristics were investigated by scanning electron microscopy (SEM), surface roughness testing, X-ray diffraction (XRD), and Auger electron spectroscopy (AES). Human bone marrow derived mesenchymal stem cells were cultured on the 3 different surfaces. Initial cell attachment was evaluated by SEM, and cell proliferation was determined using MTT assay. Real-time polymerase chain reaction (PCR) was used to quantify osteoblastic gene expression (i.e., genes encoding RUNX2, type I collagen, alkaline phosphatase, and osteocalcin). Surface analysis did not reveal any changes in surface topography after ion implantation. AES revealed that magnesium ions were present in deeper layers than calcium ions. The calcium ion- and magnesium ion-implanted surfaces showed greater initial cell attachment. Investigation of cell proliferation revealed no significant difference among the groups. After 6 days of cultivation, the expression of RUNX2 was higher in the magnesium ion-implanted surface and the expression of osteocalcin was lower in the calcium ion-implanted surface. In conclusion, ion implantation using the PIIID technique changed the surface chemistry without changing the topography. Calcium ion- and magnesium ion-implanted surfaces showed greater initial cellular attachment.
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Affiliation(s)
- Sun Won
- Department of Prosthodontics and Research Institute of Oral Science, College of Dentistry, Gangneung-Wonju National University, Jukheongil 7, Gangneung, Gangwon-do 26403 Republic of Korea
| | - Yoon-Hyuk Huh
- Department of Prosthodontics and Research Institute of Oral Science, College of Dentistry, Gangneung-Wonju National University, Jukheongil 7, Gangneung, Gangwon-do 26403 Republic of Korea
| | - Lee-Ra Cho
- Department of Prosthodontics and Research Institute of Oral Science, College of Dentistry, Gangneung-Wonju National University, Jukheongil 7, Gangneung, Gangwon-do 26403 Republic of Korea
| | - Hee-Su Lee
- Department of Anatomy and Research Institute of Oral Science, College of Dentistry, Gangneung-Wonju National University, Gangwon-do, 26403 Republic of Korea
| | - Eung-Sun Byon
- Materials Processing Division, Korea Institute of Materials Science, 797 Changwondaero, Seongsan-gu, Changwon, Gyeongnam 51508 Republic of Korea
| | - Chan-Jin Park
- Department of Prosthodontics and Research Institute of Oral Science, College of Dentistry, Gangneung-Wonju National University, Jukheongil 7, Gangneung, Gangwon-do 26403 Republic of Korea
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48
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Jang TS, Jung HD, Kim S, Moon BS, Baek J, Park C, Song J, Kim HE. Multiscale porous titanium surfaces via a two-step etching process for improved mechanical and biological performance. Biomed Mater 2017; 12:025008. [DOI: 10.1088/1748-605x/aa5d74] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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49
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Yu Y, Jin G, Xue Y, Wang D, Liu X, Sun J. Multifunctions of dual Zn/Mg ion co-implanted titanium on osteogenesis, angiogenesis and bacteria inhibition for dental implants. Acta Biomater 2017; 49:590-603. [PMID: 27915020 DOI: 10.1016/j.actbio.2016.11.067] [Citation(s) in RCA: 166] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2016] [Revised: 11/03/2016] [Accepted: 11/30/2016] [Indexed: 01/01/2023]
Abstract
In order to improve the osseointegration and long-term survival of dental implants, it is urgent to develop a multifunctional titanium surface which would simultaneously have osteogeneic, angiogeneic and antibacterial properties. In this study, a potential dental implant material-dual Zn/Mg ion co-implanted titanium (Zn/Mg-PIII) was developed via plasma immersion ion implantation (PIII). The Zn/Mg-PIII surfaces were found to promote initial adhesion and spreading of rat bone marrow mesenchymal stem cells (rBMSCs) via the upregulation of the gene expression of integrin α1 and integrin β1. More importantly, it was revealed that Zn/Mg-PIII could increase Zn2+ and Mg2+ concentrations in rBMSCs by promoting the influx of Zn2+ and Mg2+ and inhibiting the outflow of Zn2+, and then could enhance the transcription of Runx2 and the expression of ALP and OCN. Meanwhile, Mg2+ ions from Zn/Mg-PIII increased Mg2+ influx by upregulating the expression of MagT1 transporter in human umbilical vein endothelial cells (HUVECs), and then stimulated the transcription of VEGF and KDR via activation of hypoxia inducing factor (HIF)-1α, thus inducing angiogenesis. In addition to this, it was discovered that zinc in Zn/Mg-PIII had certain inhibitory effects on oral anaerobic bacteria (Pg, Fn and Sm). Finally, the Zn/Mg-PIII implants were implanted in rabbit femurs for 4 and 12weeks with Zn-PIII, Mg-PIII and pure titanium as controls. Micro-CT evaluation, sequential fluorescent labeling, histological analysis and push-out test consistently demonstrated that Zn/Mg-PIII implants exhibit superior capacities for enhancing bone formation, angiogenesis and osseointegration, while consequently increasing the bonding strength at bone-implant interfaces. All these results suggest that due to the multiple functions co-produced by zinc and magnesium, rapid osseointegration and sustained biomechanical stability are enhanced by the novel Zn/Mg-PIII implants, which have the potential application in dental implantation in the future. STATEMENT OF SIGNIFICANCE In order to enhance the rapid osseointegration and long-term survival of dental implants, various works on titanium surface modification have been carried out. However, only improving osteogenic activity of implants is not enough, because angiogenesis and bacteria inhibition are also very important for dental implants. In the present study, a novel dental implant material-dual Zn/Mg ion co-implanted titanium (Zn/Mg-PIII) was developed, which was found to have superior osteoinductivity, pro-angiogenic effects and inhibitory effects against oral anaerobes. Furthermore, synergistic effects of Zn/Mg ions on osteogenic differentiation of rBMSCs and the possible mechanism were discovered. In addition, rapid osseointegration and sustained biomechanical stability are greatly enhanced by Zn/Mg-PIII implants, which may have the potential application in dental implantation in the future. We believe this paper may be of particular interest to the readers.
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50
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Shao SY, Ming PP, Qiu J, Yu YJ, Yang J, Chen JX, Tang CB. Modification of a SLA titanium surface with calcium-containing nanosheets and its effects on osteoblast behavior. RSC Adv 2017. [DOI: 10.1039/c6ra26060h] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The aim of this study was to present a procedure to prepare a calcium-containing nanosheets-modified sandblasted and acid etched (SLA) titanium surface and explore its effects on osteoblast behavior.
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Affiliation(s)
- Shui-yi Shao
- Department of Oral Implantology
- Affiliated Hospital of Stomatology
- Nanjing Medical University
- Nanjing
- P. R. China
| | - Pan-pan Ming
- Department of Oral Implantology
- Affiliated Hospital of Stomatology
- Nanjing Medical University
- Nanjing
- P. R. China
| | - Jing Qiu
- Department of Oral Implantology
- Affiliated Hospital of Stomatology
- Nanjing Medical University
- Nanjing
- P. R. China
| | - Ying-juan Yu
- Department of Oral Implantology
- Affiliated Hospital of Stomatology
- Nanjing Medical University
- Nanjing
- P. R. China
| | - Jie Yang
- Department of Oral Implantology
- Affiliated Hospital of Stomatology
- Nanjing Medical University
- Nanjing
- P. R. China
| | - Jia-xi Chen
- Department of Oral Implantology
- Affiliated Hospital of Stomatology
- Nanjing Medical University
- Nanjing
- P. R. China
| | - Chun-bo Tang
- Department of Oral Implantology
- Affiliated Hospital of Stomatology
- Nanjing Medical University
- Nanjing
- P. R. China
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