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Zhang B, Pei Z, He W, Feng W, Hao T, Sun M, Yang X, Wang X, Kong X, Chang J, Liu G, Bai R, Wang C, Zheng F. 3D-printed porous zinc scaffold combined with bioactive serum exosomes promotes bone defect repair in rabbit radius. Aging (Albany NY) 2024; 16:205891. [PMID: 38829771 DOI: 10.18632/aging.205891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Accepted: 04/25/2024] [Indexed: 06/05/2024]
Abstract
Currently, the repair of large bone defects still faces numerous challenges, with the most crucial being the lack of large bone grafts with good osteogenic properties. In this study, a novel bone repair implant (degradable porous zinc scaffold/BF Exo composite implant) was developed by utilizing laser melting rapid prototyping 3D printing technology to fabricate a porous zinc scaffold, combining it under vacuum conditions with highly bioactive serum exosomes (BF EXO) and Poloxamer 407 thermosensitive hydrogel. The electron microscope revealed the presence of tea saucer-shaped exosomes with a double-layered membrane structure, ranging in diameter from 30-150 nm, with an average size of 86.3 nm and a concentration of 3.28E+09 particles/mL. In vitro experiments demonstrated that the zinc scaffold displayed no significant cytotoxicity, and loading exosomes enhanced the zinc scaffold's ability to promote osteogenic cell activity while inhibiting osteoclast activity. In vivo experiments on rabbits indicated that the hepatic and renal toxicity of the zinc scaffold decreased over time, and the loading of exosomes alleviated the hepatic and renal toxic effects of the zinc scaffold. Throughout various stages of repairing radial bone defects in rabbits, loading exosomes reinforced the zinc scaffold's capacity to enhance osteogenic cell activity, suppress osteoclast activity, and promote angiogenesis. This effect may be attributed to BF Exo's regulation of p38/STAT1 signaling. This study signifies that the combined treatment of degradable porous zinc scaffolds and BF Exo is an effective and biocompatible strategy for bone defect repair therapy.
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Affiliation(s)
- Baoxin Zhang
- Department of Orthopedic Surgery, Suzhou Medical College of Soochow University, Suzhou 215000, Jiangsu, China
- Department of Orthopedic Surgery, The Second Affiliated Hospital of Inner Mongolia Medical University, Hohhot 010050, China
| | - Zhiwei Pei
- Graduate School of Inner Mongolia Medical University, Hohhot 010050, China
- Department of Orthopedic Surgery, The Second Affiliated Hospital of Inner Mongolia Medical University, Hohhot 010050, China
| | - Wanxiong He
- Graduate School of Inner Mongolia Medical University, Hohhot 010050, China
- Department of Orthopedic Surgery, The Second Affiliated Hospital of Inner Mongolia Medical University, Hohhot 010050, China
| | - Wei Feng
- Department of Orthopedic Surgery, The Second Affiliated Hospital of Inner Mongolia Medical University, Hohhot 010050, China
| | - Ting Hao
- Department of Orthopedic Surgery, The Second Affiliated Hospital of Inner Mongolia Medical University, Hohhot 010050, China
| | - Mingqi Sun
- Department of Orthopedic Surgery, The Second Affiliated Hospital of Inner Mongolia Medical University, Hohhot 010050, China
| | - Xiaolong Yang
- Department of Orthopedic Surgery, The Second Affiliated Hospital of Inner Mongolia Medical University, Hohhot 010050, China
| | - Xing Wang
- Department of Orthopedic Surgery, Bayannur City Hospital, Bayannur 015000, China
| | - Xiangyu Kong
- Graduate School of Inner Mongolia Medical University, Hohhot 010050, China
- Department of Orthopedic Surgery, The Second Affiliated Hospital of Inner Mongolia Medical University, Hohhot 010050, China
| | - Jiale Chang
- Graduate School of Inner Mongolia Medical University, Hohhot 010050, China
- Department of Orthopedic Surgery, The Second Affiliated Hospital of Inner Mongolia Medical University, Hohhot 010050, China
| | - Guanghui Liu
- Department of Orthopedic Surgery, The Second Affiliated Hospital of Inner Mongolia Medical University, Hohhot 010050, China
| | - Rui Bai
- Department of Orthopedic Surgery, The Second Affiliated Hospital of Inner Mongolia Medical University, Hohhot 010050, China
| | - Chang Wang
- Department of Biomaterials Research Center, Shaanxi Key Laboratory of Biomedical Metallic Materials, Northwest Institute for Non-ferrous Metal Research, Shaanxi 710016, Xi’an, China
| | - Feng Zheng
- Department of Orthopedic Surgery, Suzhou Medical College of Soochow University, Suzhou 215000, Jiangsu, China
- Department of Orthopedic Surgery, Qinghai Provincial People’s Hospital, Xining 810000, Qinghai, China
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Hao Z, Feng Q, Wang Y, Wang Y, Li H, Hu Y, Chen T, Wang J, Chen R, Lv X, Yang Z, Chen J, Guo X, Li J. A parathyroid hormone related supramolecular peptide for multi-functionalized osteoregeneration. Bioact Mater 2024; 34:181-203. [PMID: 38235308 PMCID: PMC10792172 DOI: 10.1016/j.bioactmat.2023.12.014] [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: 09/17/2023] [Revised: 11/30/2023] [Accepted: 12/17/2023] [Indexed: 01/19/2024] Open
Abstract
Supramolecular peptide nanofiber hydrogels are emerging biomaterials for tissue engineering, but it is difficult to fabricate multi-functional systems by simply mixing several short-motif-modified supramolecular peptides because relatively abundant motifs generally hinder nanofiber cross-linking or the formation of long nanofiber. Coupling bioactive factors to the assembling backbone is an ideal strategy to design multi-functional supramolecular peptides in spite of challenging synthesis and purification. Herein, a multi-functional supramolecular peptide, P1R16, is developed by coupling a bioactive factor, parathyroid hormone related peptide 1 (PTHrP-1), to the basic supramolecular peptide RADA16-Ⅰ via solid-phase synthesis. It is found that P1R16 self-assembles into long nanofibers and co-assembles with RADA16-Ⅰ to form nanofiber hydrogels, thus coupling PTHrP-1 to hydrogel matrix. P1R16 nanofiber retains osteoinductive activity in a dose-dependent manner, and P1R16/RADA16-Ⅰ nanofiber hydrogels promote osteogenesis, angiogenesis and osteoclastogenesis in vitro and induce multi-functionalized osteoregeneration by intramembranous ossification and bone remodeling in vivo when loaded to collagen (Col) scaffolds. Abundant red blood marrow formation, ideal osteointegration and adapted degradation are observed in the 50% P1R16/Col scaffold group. Therefore, this study provides a promising strategy to develop multi-functional supramolecular peptides and a new method to topically administrate parathyroid hormone or parathyroid hormone related peptides for non-healing bone defects.
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Affiliation(s)
- Zhuowen Hao
- Department of Orthopedics, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Qinyu Feng
- Department of Orthopedics, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Yi Wang
- Department of Orthopedics, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Ying Wang
- Department of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Hanke Li
- Department of Orthopedics, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Yingkun Hu
- Department of Orthopedics, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Tianhong Chen
- Department of Orthopedics, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Junwu Wang
- Department of Orthopedics, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Renxin Chen
- Department of Orthopedics, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Xuan Lv
- Department of Orthopedics, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Zhiqiang Yang
- Department of Orthopedics, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Jiayao Chen
- Department of Orthopedics, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Xiaodong Guo
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Jingfeng Li
- Department of Orthopedics, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
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Hu Y, Yang R, Liu S, Song Z, Wang H. The Emerging Roles of Nanocarrier Drug Delivery System in Treatment of Intervertebral Disc Degeneration-Current Knowledge, Hot Spots, Challenges and Future Perspectives. Drug Des Devel Ther 2024; 18:1007-1022. [PMID: 38567254 PMCID: PMC10986407 DOI: 10.2147/dddt.s448807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Accepted: 03/09/2024] [Indexed: 04/04/2024] Open
Abstract
Low back pain (LBP) is a common condition that has substantial consequences on individuals and society, both socially and economically. The primary contributor to LBP is often identified as intervertebral disc degeneration (IVDD), which worsens and leads to significant spinal problems. The conventional treatment approach for IVDD involves physiotherapy, drug therapy for pain management, and, in severe cases, surgery. However, none of these treatments address the underlying cause of the condition, meaning that they cannot fundamentally reverse IVDD or restore the mechanical function of the spine. Nanotechnology and regenerative medicine have made significant advancements in the field of healthcare, particularly in the area of nanodrug delivery systems (NDDSs). These approaches have demonstrated significant potential in enhancing the efficacy of IVDD treatments by providing benefits such as high biocompatibility, biodegradability, precise drug delivery to targeted areas, prolonged drug release, and improved therapeutic results. The advancements in different NDDSs designed for delivering various genes, cells, proteins and therapeutic drugs have opened up new opportunities for effectively addressing IVDD. This comprehensive review provides a consolidated overview of the recent advancements in the use of NDDSs for the treatment of IVDD. It emphasizes the potential of these systems in overcoming the challenges associated with this condition. Meanwhile, the insights and ideas presented in this review aim to contribute to the advancement of precise IVDD treatment using NDDSs.
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Affiliation(s)
- Yunxiang Hu
- Department of Orthopedics, Central Hospital of Dalian University of Technology, Dalian City, Liaoning Province, People’s Republic of China
- School of Graduates, Dalian Medical University, Dalian City, Liaoning Province, People’s Republic of China
| | - Rui Yang
- Department of Orthopedics, Central Hospital of Dalian University of Technology, Dalian City, Liaoning Province, People’s Republic of China
- School of Graduates, Dalian Medical University, Dalian City, Liaoning Province, People’s Republic of China
| | - Sanmao Liu
- Department of Orthopedics, Central Hospital of Dalian University of Technology, Dalian City, Liaoning Province, People’s Republic of China
- School of Graduates, Dalian Medical University, Dalian City, Liaoning Province, People’s Republic of China
| | - Zefeng Song
- School of Graduates, Dalian University of Technology, Dalian City, Liaoning Province, People’s Republic of China
| | - Hong Wang
- Department of Orthopedics, Central Hospital of Dalian University of Technology, Dalian City, Liaoning Province, People’s Republic of China
- School of Graduates, Dalian Medical University, Dalian City, Liaoning Province, People’s Republic of China
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Maevskaia E, Guerrero J, Ghayor C, Bhattacharya I, Weber FE. Functionalization of Ceramic Scaffolds with Exosomes from Bone Marrow Mesenchymal Stromal Cells for Bone Tissue Engineering. Int J Mol Sci 2024; 25:3826. [PMID: 38612634 PMCID: PMC11011713 DOI: 10.3390/ijms25073826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Revised: 03/21/2024] [Accepted: 03/28/2024] [Indexed: 04/14/2024] Open
Abstract
The functionalization of bone substitutes with exosomes appears to be a promising technique to enhance bone tissue formation. This study investigates the potential of exosomes derived from bone marrow mesenchymal stromal cells (BMSCs) to improve bone healing and bone augmentation when incorporated into wide open-porous 3D-printed ceramic Gyroid scaffolds. We demonstrated the multipotent characteristics of BMSCs and characterized the extracted exosomes using nanoparticle tracking analysis and proteomic profiling. Through cell culture experimentation, we demonstrated that BMSC-derived exosomes possess the ability to attract cells and significantly facilitate their differentiation into the osteogenic lineage. Furthermore, we observed that scaffold architecture influences exosome release kinetics, with Gyroid scaffolds exhibiting slower release rates compared to Lattice scaffolds. Nevertheless, in vivo implantation did not show increased bone ingrowth in scaffolds loaded with exosomes, suggesting that the scaffold microarchitecture and material were already optimized for osteoconduction and bone augmentation. These findings highlight the lack of understanding about the optimal delivery of exosomes for osteoconduction and bone augmentation by advanced ceramic scaffolds.
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Affiliation(s)
- Ekaterina Maevskaia
- Center of Dental Medicine, Oral Biotechnology & Bioengineering, University of Zurich, Plattenstrasse 11, 8032 Zurich, Switzerland (J.G.); (C.G.); (I.B.)
| | - Julien Guerrero
- Center of Dental Medicine, Oral Biotechnology & Bioengineering, University of Zurich, Plattenstrasse 11, 8032 Zurich, Switzerland (J.G.); (C.G.); (I.B.)
| | - Chafik Ghayor
- Center of Dental Medicine, Oral Biotechnology & Bioengineering, University of Zurich, Plattenstrasse 11, 8032 Zurich, Switzerland (J.G.); (C.G.); (I.B.)
| | - Indranil Bhattacharya
- Center of Dental Medicine, Oral Biotechnology & Bioengineering, University of Zurich, Plattenstrasse 11, 8032 Zurich, Switzerland (J.G.); (C.G.); (I.B.)
| | - Franz E. Weber
- Center of Dental Medicine, Oral Biotechnology & Bioengineering, University of Zurich, Plattenstrasse 11, 8032 Zurich, Switzerland (J.G.); (C.G.); (I.B.)
- Center for Applied Biotechnology and Molecular Medicine (CABMM), University of Zurich, Winterthurerstrasse 190, 8057 Zurich, Switzerland
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Lian S, Mu Z, Yuan Z, Shafiq M, Mo X, Mu W. Methacrylated gelatin and platelet-rich plasma based hydrogels promote regeneration of critical-sized bone defects. Regen Biomater 2024; 11:rbae022. [PMID: 38567105 PMCID: PMC10985677 DOI: 10.1093/rb/rbae022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 01/27/2024] [Accepted: 02/12/2024] [Indexed: 04/04/2024] Open
Abstract
Physiological repair of large-sized bone defects requires instructive scaffolds with appropriate mechanical properties, biocompatibility, biodegradability, vasculogenic ability and osteo-inductivity. The objective of this study was to fabricate in situ injectable hydrogels using platelet-rich plasma (PRP)-loaded gelatin methacrylate (GM) and employ them for the regeneration of large-sized bone defects. We performed various biological assays as well as assessed the mechanical properties of GM@PRP hydrogels alongside evaluating the release kinetics of growth factors (GFs) from hydrogels. The GM@PRP hydrogels manifested sufficient mechanical properties to support the filling of the tissue defects. For biofunction assay, the GM@PRP hydrogels significantly improved cell migration and angiogenesis. Especially, transcriptome RNA sequencing of human umbilical vein endothelial cells and bone marrow-derived stem cells were performed to delineate vascularization and biomineralization abilities of GM@PRP hydrogels. The GM@PRP hydrogels were subcutaneously implanted in rats for up to 4 weeks for preliminary biocompatibility followed by their transplantation into a tibial defect model for up to 8 weeks in rats. Tibial defects treated with GM@PRP hydrogels manifested significant bone regeneration as well as angiogenesis, biomineralization, and collagen deposition. Based on the biocompatibility and biological function of GM@PRP hydrogels, a new strategy is provided for the regenerative repair of large-size bone defects.
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Affiliation(s)
- Shichao Lian
- Department of Traumatic Orthopaedics, Shandong Provincial Hospital, Shandong University, Jinan, Shandong 250012, China
- Zoucheng People’s Hospital, Zoucheng, Shandong 273500, China
| | - Zhiyu Mu
- Department of Medical Physics and Biomedical Engineering, University of London, London WC1E 6BT, UK
| | - Zhengchao Yuan
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Biological Science and Medical Engineering, Donghua University, Shanghai 201620, PR China
| | - Muhammad Shafiq
- Innovation Center of NanoMedicine (iCONM), Kawasaki Institute of Industrial Promotion, Kawasaki-Ku, Kawasaki 210-0821, Japan
| | - Xiumei Mo
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Biological Science and Medical Engineering, Donghua University, Shanghai 201620, PR China
| | - Weidong Mu
- Department of Traumatic Orthopaedics, Shandong Provincial Hospital, Shandong University, Jinan, Shandong 250012, China
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Wang B, Ye X, Chen G, Zhang Y, Zeng Z, Liu C, Tan Z, Jie X. Fabrication and properties of PLA/β-TCP scaffolds using liquid crystal display (LCD) photocuring 3D printing for bone tissue engineering. Front Bioeng Biotechnol 2024; 12:1273541. [PMID: 38440328 PMCID: PMC10910430 DOI: 10.3389/fbioe.2024.1273541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Accepted: 01/08/2024] [Indexed: 03/06/2024] Open
Abstract
Introduction: Bone defects remain a thorny challenge that clinicians have to face. At present, scaffolds prepared by 3D printing are increasingly used in the field of bone tissue repair. Polylactic acid (PLA) has good thermoplasticity, processability, biocompatibility, and biodegradability, but the PLA is brittle and has poor osteogenic performance. Beta-tricalcium phosphate (β-TCP) has good mechanical properties and osteogenic induction properties, which can make up for the drawbacks of PLA. Methods: In this study, photocurable biodegradable polylactic acid (bio-PLA) was utilized as the raw material to prepare PLA/β-TCP slurries with varying β-TCP contents (β-TCP dosage at 0%, 10%, 20%, 30%, 35% of the PLA dosage, respectively). The PLA/β-TCP scaffolds were fabricated using liquid crystal display (LCD) light-curing 3D printing technology. The characterization of the scaffolds was assessed, and the biological activity of the scaffold with the optimal compressive strength was evaluated. The biocompatibility of the scaffold was assessed through CCK-8 assays, hemocompatibility assay and live-dead staining experiments. The osteogenic differentiation capacity of the scaffold on MC3T3-E1 cells was evaluated through alizarin red staining, alkaline phosphatase (ALP) detection, immunofluorescence experiments, and RT-qPCR assays. Results: The prepared scaffold possesses a three-dimensional network structure, and with an increase in the quantity of β-TCP, more β-TCP particles adhere to the scaffold surface. The compressive strength of PLA/β-TCP scaffolds exhibits a trend of initial increase followed by decrease with an increasing amount of β-TCP, reaching a maximum value of 52.1 MPa at a 10% β-TCP content. Degradation rate curve results indicate that with the passage of time, the degradation rate of the scaffold gradually increases, and the pH of the scaffold during degradation shows an alkaline tendency. Additionally, Live/dead staining and blood compatibility experiments suggest that the prepared PLA/β-TCP scaffold demonstrates excellent biocompatibility. CCK-8 experiments indicate that the PLA/β-TCP group promotes cell proliferation, and the prepared PLA/β-TCP scaffold exhibits a significant ability to enhance the osteogenic differentiation of MC3T3-E1 cells in vitro. Discussion: 3D printed LCD photocuring PLA/β-TCP scaffolds could improve surface bioactivity and lead to better osteogenesis, which may provide a unique strategy for developing bioactive implants in orthopedic applications.
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Affiliation(s)
- Boqun Wang
- School of Materials and Energy, Guangdong University of Technology, Guangzhou, Guangdong, China
- School of Intelligent Manufacturing, Dongguan Polytechnic, Dongguan, Guangdong, China
| | - Xiangling Ye
- Dongguan Hospital, Guangzhou University of Chinese Medicine, Dongguan, Guangdong, China
- The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Guocai Chen
- Foshan Hospital of Traditional Chinese Medicine, Guangzhou University of Chinese Medicine, Foshan, Guangdong, China
| | - Yongqiang Zhang
- The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Zhikui Zeng
- Affiliated Hospital of Jiangxi University of Chinese Medicine, Nanchang, Jiangxi, China
| | - Cansen Liu
- School of Materials and Energy, Guangdong University of Technology, Guangzhou, Guangdong, China
| | - Zhichao Tan
- Dongguan Hospital, Guangzhou University of Chinese Medicine, Dongguan, Guangdong, China
| | - Xiaohua Jie
- School of Materials and Energy, Guangdong University of Technology, Guangzhou, Guangdong, China
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Liu L, Wu J, Lv S, Xu D, Li S, Hou W, Wang C, Yu D. Synergistic effect of hierarchical topographic structure on 3D-printed Titanium scaffold for enhanced coupling of osteogenesis and angiogenesis. Mater Today Bio 2023; 23:100866. [PMID: 38149019 PMCID: PMC10750103 DOI: 10.1016/j.mtbio.2023.100866] [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: 08/15/2023] [Revised: 10/15/2023] [Accepted: 11/11/2023] [Indexed: 12/28/2023] Open
Abstract
The significance of the osteogenesis-angiogenesis relationship in the healing process of bone defects has been increasingly emphasized in recent academic research. Surface topography plays a crucial role in guiding cellular behaviors. Metal-organic framework (MOF) is an innovative biomaterial with nanoscale structural and topological features, enabling the modulation of scaffold physicochemical properties. This study involved the loading of varying quantities of UiO-66 nanocrystals onto alkali-heat treated 3D-printed titanium scaffolds, resulting in the formation of hierarchical micro/nano topography named UiO-66/AHTs. The physicochemical properties of these scaffolds were subsequently characterized. Furthermore, the impact of these scaffolds on the osteogenic potential of BMSCs, the angiogenic potential of HUVECs, and their intercellular communication were investigated. The findings of this study indicated that 1/2UiO-66/AHT outperformed other groups in terms of osteogenic and angiogenic induction, as well as in promoting intercellular crosstalk by enhancing paracrine effects. These results suggest a promising biomimetic hierarchical topography design that facilitates the coupling of osteogenesis and angiogenesis.
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Affiliation(s)
- Leyi Liu
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, 510055, China
- Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, 510055, China
| | - Jie Wu
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, 510055, China
- Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, 510055, China
| | - Shiyu Lv
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, 510055, China
- Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, 510055, China
| | - Duoling Xu
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, 510055, China
- Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, 510055, China
| | - Shujun Li
- Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, China
| | - Wentao Hou
- Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, China
| | - Chao Wang
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, 510055, China
- Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, 510055, China
| | - Dongsheng Yu
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, 510055, China
- Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, 510055, China
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