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Ding Y, Su Y, Lv Z, Sun H, Bi X, Lu L, Zhou H, You Z, Wang Y, Ruan J, Gu P, Fan X. Poly (fumaroyl bioxirane) maleate: A potential functional scaffold for bone regeneration. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 76:249-259. [PMID: 28482524 DOI: 10.1016/j.msec.2017.02.164] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Revised: 02/24/2017] [Accepted: 02/28/2017] [Indexed: 12/14/2022]
Abstract
Proper scaffolds combined with mesenchymal stem cells (MSCs) represent a promising strategy for repairing bone defects. In a previous study, poly (fumaroyl bioxirane) maleate (PFM), a newly developed functional polymer with numerous functional groups, exhibited excellent biocompatibility and enhanced the alkaline phosphatase (ALP) activity of osteoblasts in vitro. Here, to provide further and comprehensive insight into the application of PFM in bone tissue engineering, we investigated the osteoinductive potential of PFM cultured with rat adipose-derived mesenchymal stem cells (rADSCs). The results showed that PFM resulted in greater proliferation of rADSCs and that the PFM substrate had stronger osteoinductivity than PLGA and the control, as indicated by the significant upregulation of osteogenesis-related genes, proteins and calcium mineralization in vitro. Next, PFM was combined with rADSCs to repair a critical-sized calvarial defect in rats. Compared to the PLGA scaffold, the PFM scaffold significantly promoted new bone formation and exhibited excellent effects in repairing rat calvarial defects. In conclusion, PFM possesses strong osteoinductivity, which could markedly enhance bone regeneration, suggesting that PFM could serve as a promising and effective optimization method for traditional scaffolds in bone regeneration.
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Affiliation(s)
- Yi Ding
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, People's Republic of China
| | - Yun Su
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, People's Republic of China
| | - Ziyin Lv
- Biomaterials and Tissue Engineering Laboratory, College of Chemistry & Chemical Engineering and Biotechnology, Donghua University, Shanghai, People's Republic of China
| | - Hao Sun
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, People's Republic of China
| | - Xiaoping Bi
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, People's Republic of China
| | - Linna Lu
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, People's Republic of China
| | - Huifang Zhou
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, People's Republic of China
| | - Zhengwei You
- Biomaterials and Tissue Engineering Laboratory, College of Chemistry & Chemical Engineering and Biotechnology, Donghua University, Shanghai, People's Republic of China
| | - Yadong Wang
- Departments of Bioengineering, Chemical Engineering, Surgery, and the McGowan Institute, University of Pittsburgh, 3700 O'Hara Street, Pittsburgh, PA 15261, USA
| | - Jing Ruan
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, People's Republic of China.
| | - Ping Gu
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, People's Republic of China.
| | - Xianqun Fan
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, People's Republic of China.
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152
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Liu G, Li L, Huo D, Li Y, Wu Y, Zeng L, Cheng P, Xing M, Zeng W, Zhu C. A VEGF delivery system targeting MI improves angiogenesis and cardiac function based on the tropism of MSCs and layer-by-layer self-assembly. Biomaterials 2017; 127:117-131. [PMID: 28284103 DOI: 10.1016/j.biomaterials.2017.03.001] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Revised: 02/21/2017] [Accepted: 03/01/2017] [Indexed: 12/29/2022]
Abstract
Myocardial infarction (MI) is a serious ischemic condition affecting many individuals around the world. Vascular endothelial growth factor (VEGF) is considered a promising factor for enhancing cardiac function by promoting angiogenesis. However, the lack of a suitable method of VEGF delivery to the MI area is a serious challenge. In this study, we screened a suitable delivery carrier with favorable biocompatibility that targeted the MI area using the strategy of an inherent structure derived from the body and that was based on characteristics of the MI. Mesenchymal stem cells (MSCs) are important infiltrating cells that are derived from blood and have an inherent tropism for the MI zone. We hypothesized that VEGF-encapsulated MSCs targeting MI tissue could improve cardiac function by angiogenesis based on the tropism of the MSCs to the MI area. We first developed VEGF-encapsulated MSCs using self-assembled gelatin and alginate polyelectrolytes to improve angiogenesis and cardiac function. In vitro, the results showed that VEGF-encapsulated MSCs had a sustained release of VEGF and tropism to SDF-1. In vivo, VEGF-encapsulated MSCs migrated to the MI area, enhanced cardiac function, perfused the infarcted area and promoted angiogenesis. These preclinical findings suggest that VEGF-loaded layer-by-layer self-assembled encapsulated MSCs may be a promising and minimally invasive therapy for treating MI. Furthermore, other drugs loaded to layer-by-layer self-assembled encapsulated MSCs may be promising therapies for treating other diseases.
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Affiliation(s)
- Ge Liu
- Department of Anatomy, National & Regional Engineering Laboratory of Tissue Engineering, State and Local Joint Engineering Laboratory for Vascular Implants, Key Lab for Biomechanics and Tissue Engineering of Chongqing, State Key Laboratory of Trauma, burn and Combined injury, Third Military Medical University, Chongqing 400038, China
| | - Li Li
- Department of Anatomy, National & Regional Engineering Laboratory of Tissue Engineering, State and Local Joint Engineering Laboratory for Vascular Implants, Key Lab for Biomechanics and Tissue Engineering of Chongqing, State Key Laboratory of Trauma, burn and Combined injury, Third Military Medical University, Chongqing 400038, China
| | - Da Huo
- Department of Anatomy, National & Regional Engineering Laboratory of Tissue Engineering, State and Local Joint Engineering Laboratory for Vascular Implants, Key Lab for Biomechanics and Tissue Engineering of Chongqing, State Key Laboratory of Trauma, burn and Combined injury, Third Military Medical University, Chongqing 400038, China
| | - Yanzhao Li
- Department of Anatomy, National & Regional Engineering Laboratory of Tissue Engineering, State and Local Joint Engineering Laboratory for Vascular Implants, Key Lab for Biomechanics and Tissue Engineering of Chongqing, State Key Laboratory of Trauma, burn and Combined injury, Third Military Medical University, Chongqing 400038, China
| | - Yangxiao Wu
- Department of Anatomy, National & Regional Engineering Laboratory of Tissue Engineering, State and Local Joint Engineering Laboratory for Vascular Implants, Key Lab for Biomechanics and Tissue Engineering of Chongqing, State Key Laboratory of Trauma, burn and Combined injury, Third Military Medical University, Chongqing 400038, China
| | - Lingqing Zeng
- Department of Anatomy, National & Regional Engineering Laboratory of Tissue Engineering, State and Local Joint Engineering Laboratory for Vascular Implants, Key Lab for Biomechanics and Tissue Engineering of Chongqing, State Key Laboratory of Trauma, burn and Combined injury, Third Military Medical University, Chongqing 400038, China
| | - Panke Cheng
- Department of Anatomy, National & Regional Engineering Laboratory of Tissue Engineering, State and Local Joint Engineering Laboratory for Vascular Implants, Key Lab for Biomechanics and Tissue Engineering of Chongqing, State Key Laboratory of Trauma, burn and Combined injury, Third Military Medical University, Chongqing 400038, China
| | - Malcolm Xing
- Department of Mechanical Engineering, Biochemistry & Medical Genetics, University of Manitoba, 75A Chancellors Circle, Winnipeg, Manitoba R3T 2N2, Canada; Manitoba Institute of Child Health, 715 McDermot Ave, Winnipeg, Manitoba R3E3P4, Canada
| | - Wen Zeng
- Department of Anatomy, National & Regional Engineering Laboratory of Tissue Engineering, State and Local Joint Engineering Laboratory for Vascular Implants, Key Lab for Biomechanics and Tissue Engineering of Chongqing, State Key Laboratory of Trauma, burn and Combined injury, Third Military Medical University, Chongqing 400038, China
| | - Chuhong Zhu
- Department of Anatomy, National & Regional Engineering Laboratory of Tissue Engineering, State and Local Joint Engineering Laboratory for Vascular Implants, Key Lab for Biomechanics and Tissue Engineering of Chongqing, State Key Laboratory of Trauma, burn and Combined injury, Third Military Medical University, Chongqing 400038, China.
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153
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Lizundia E, Mateos P, Vilas JL. Tuneable hydrolytic degradation of poly(l-lactide) scaffolds triggered by ZnO nanoparticles. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 75:714-720. [PMID: 28415520 DOI: 10.1016/j.msec.2017.02.104] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Revised: 12/14/2016] [Accepted: 02/21/2017] [Indexed: 12/01/2022]
Abstract
In this work we fabricate porous PLLA and PLLA/ZnO scaffolds with porosities ranging from 10 to 90% and average pore diameter of 125-250μm by solvent casting/particulate leaching method. The structural evolution of PLLA/ZnO scaffolds during their in vitro degradation in phosphate buffered saline (PBS) at physiological pH (7.4) has been studied as a function of porosity and obtained results were compared to plain PLLA scaffolds. The changes induced upon the hydrolytic degradation of scaffolds have been explored by measuring the pH changes of the medium, the mass loss, thermal transitions, crystalline structure, thermal stability and the morphological changes. It is shown that the degradation profile of scaffolds could be successfully modified by tuning both the amount of ZnO nanoparticles and by varying the scaffold porosity. Results reveal that the water dissociated on ZnO nanoparticle surfaces initiate hydrolytic degradation reactions by reducing the strength of the chemical bonds of the adjacent PLLA chains, causing them to further divide into water-soluble oligomers. Obtained results may be useful towards the development of antibacterial porous structures with tuneable degradation rates to be used as a substrate for the growth of different kind of cells and tissues.
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Affiliation(s)
- Erlantz Lizundia
- Dept. of Graphic Design and Engineering Projects, Bilbao Faculty of Engineering, University of the Basque Country (UPV/EHU), Spain; Macromolecular Chemistry Research Group (LABQUIMAC), Dept. of Physical Chemistry, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Spain.
| | - Paula Mateos
- Macromolecular Chemistry Research Group (LABQUIMAC), Dept. of Physical Chemistry, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Spain
| | - José Luis Vilas
- Macromolecular Chemistry Research Group (LABQUIMAC), Dept. of Physical Chemistry, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Spain
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154
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Tao L, Zhonglong L, Ming X, Zezheng Y, Zhiyuan L, Xiaojun Z, Jinwu W. In vitro and in vivo studies of a gelatin/carboxymethyl chitosan/LAPONITE® composite scaffold for bone tissue engineering. RSC Adv 2017. [DOI: 10.1039/c7ra06913h] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In the present study, we fabricated a biocomposite scaffold composed of carboxymethyl chitosan (CMC), gelatin and LAPONITE® (Lap) nanoparticles via freeze-drying and investigated its potential use in bone tissue engineering.
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Affiliation(s)
- Li Tao
- Shanghai Key Laboratory of Orthopaedic Implant
- Department of Orthopaedic Surgery
- Shanghai Ninth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine
- Shanghai 200011
- China
| | - Liu Zhonglong
- Shanghai Key Laboratory of Orthopaedic Implant
- Department of Orthopaedic Surgery
- Shanghai Ninth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine
- Shanghai 200011
- China
| | - Xiao Ming
- Shanghai Key Laboratory of Orthopaedic Implant
- Department of Orthopaedic Surgery
- Shanghai Ninth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine
- Shanghai 200011
- China
| | - Yang Zezheng
- Shanghai Key Laboratory of Orthopaedic Implant
- Department of Orthopaedic Surgery
- Shanghai Ninth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine
- Shanghai 200011
- China
| | - Liu Zhiyuan
- Shanghai Key Laboratory of Orthopaedic Implant
- Department of Orthopaedic Surgery
- Shanghai Ninth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine
- Shanghai 200011
- China
| | - Zhou Xiaojun
- Shanghai Key Laboratory of Orthopaedic Implant
- Department of Orthopaedic Surgery
- Shanghai Ninth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine
- Shanghai 200011
- China
| | - Wang Jinwu
- Shanghai Key Laboratory of Orthopaedic Implant
- Department of Orthopaedic Surgery
- Shanghai Ninth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine
- Shanghai 200011
- China
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155
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Zhang X, Huang C, Zhao Y, Jin X. Preparation and characterization of nanoparticle reinforced alginate fibers with high porosity for potential wound dressing application. RSC Adv 2017. [DOI: 10.1039/c7ra06103j] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
A novel fiber dressing was fabricated by blending nano-silica/hydroxyapatite with alginateviamicrofluidic spinning, demonstrating delayed degradation, greater mechanical property and superior bioactivity due to the reinforcing alginate fibers.
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Affiliation(s)
- Xiaolin Zhang
- Key Laboratory of Textile Science & Technology
- Ministry of Education
- College of Textiles
- Donghua University
- Shanghai 201620
| | - Chen Huang
- Key Laboratory of Textile Science & Technology
- Ministry of Education
- College of Textiles
- Donghua University
- Shanghai 201620
| | - Yi Zhao
- Key Laboratory of Textile Science & Technology
- Ministry of Education
- College of Textiles
- Donghua University
- Shanghai 201620
| | - Xiangyu Jin
- Key Laboratory of Textile Science & Technology
- Ministry of Education
- College of Textiles
- Donghua University
- Shanghai 201620
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156
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Wang X, Wang G, Liu L, Zhang D. The mechanism of a chitosan-collagen composite film used as biomaterial support for MC3T3-E1 cell differentiation. Sci Rep 2016; 6:39322. [PMID: 28000715 PMCID: PMC5175145 DOI: 10.1038/srep39322] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2016] [Accepted: 11/04/2016] [Indexed: 02/07/2023] Open
Abstract
Natural composite biomaterials are good structural supports for bone cells to regenerate lost bone. Here, we report that a chitosan-collagen composite film accelerated osteoblast proliferation, differentiation and matrix mineralization in MC3T3-E1 cells. Intriguingly, we observed that the film enhanced the phosphorylation of Erk1/2. We showed that the chitosan-collagen composite film increased the transcriptional activity of Runx2, which is an important factor regulating osteoblast differentiation downstream of phosphorylated Erk1/2. Consistent with this observation, we found that the chitosan-collagen composite film increased the expression of osteoblastic marker genes, including Type I Collagen and Runx2 in MC3T3-E1 cells. We conclude that this film promoted osteoblast differentiation and matrix mineralization through an Erk1/2-activated Runx2 pathway. Our findings provide new evidence that chitosan-collagen composites are promising biomaterials for bone tissue engineering in bone defect-related diseases.
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Affiliation(s)
- Xiaoyan Wang
- Department of Chemistry and Biology, College of Science, National University of Defense Technology, Changsha, Hunan, 410073, PR China
| | - Gan Wang
- Department of Chemistry and Biology, College of Science, National University of Defense Technology, Changsha, Hunan, 410073, PR China
| | - Long Liu
- Department of Chemistry and Biology, College of Science, National University of Defense Technology, Changsha, Hunan, 410073, PR China
| | - Dongyi Zhang
- Department of Chemistry and Biology, College of Science, National University of Defense Technology, Changsha, Hunan, 410073, PR China
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157
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Zhang Z, Cheng X, Yao Y, Luo J, Tang Q, Wu H, Lin S, Han C, Wei Q, Chen L. Electrophoretic deposition of chitosan/gelatin coatings with controlled porous surface topography to enhance initial osteoblast adhesive responses. J Mater Chem B 2016; 4:7584-7595. [PMID: 32263815 DOI: 10.1039/c6tb02122k] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Electrophoretically deposited (EPD) coatings have often been employed recently for the addition of different new chemical compositions to classic chitosan coatings to improve the biocompatibility and therapeutic potential of coated implants. However, little attention has been paid to enhance the cell response to EPD coatings via integrating the effects of chemical components and surface topography. Here, we fabricated EPD chitosan/gelatin (CS/G) coatings with controlled porous surface topography by controlling bubble generation in the EPD process via changing the gelatin content in solution from 0, 0.01, 0.1, and 1 to 10 mg ml-1. The pure chitosan coating surface was characterized by homogeneous large pores of 500 μm. After 0.01 mg ml-1 gelatin was added, 180 μm small pores appeared on the walls of large pores. As the gelatin content increased to 0.1 mg ml-1, a number of small pores increased noticeably. When the gelatin content reached 1 mg ml-1, large pores disappeared, and the coating displayed homogeneous small pores. 10 mg ml-1 gelatin concentration led to coatings consisting of small pores with not integral and continuous structures. The initial osteoblastic responses, including cell adherence progress, spreading area, proliferation rate, and focal adhesion-related gene expression, gradually improved from 0 to 0.01, 0.1, and 1 mg ml-1 gelatin content, but decreased from 1 to 10 mg ml-1. All these results indicated that the initial cell responses to coatings reached a peak when it was 1 mg ml-1 gelatin and they had homogeneous small pores, which might contribute to the synergistic effects of the porous surface structure and components. This work would be beneficial for expanding the potential application of EPD coatings.
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Affiliation(s)
- Zhen Zhang
- Dept. Stomatol., Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
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158
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Dong Y, Liu W, Lei Y, Wu T, Zhang S, Guo Y, Liu Y, Chen D, Yuan Q, Wang Y. Effect of gelatin sponge with colloid silver on bone healing in infected cranial defects. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 70:371-377. [PMID: 27770905 DOI: 10.1016/j.msec.2016.09.015] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2016] [Revised: 08/17/2016] [Accepted: 09/06/2016] [Indexed: 02/05/2023]
Abstract
Oral infectious diseases may lead to bone loss, which makes it difficult to achieve satisfactory restoration. The rise of multidrug resistant bacteria has put forward severe challenges to the use of antibiotics. Silver (Ag) has long been known as a strong antibacterial agent. In clinic, gelatin sponge with colloid silver is used to reduce tooth extraction complication. To investigate how this material affect infected bone defects, methicillin-resistant Staphylococcus aureus (MRSA) infected 3-mm-diameter cranial defects were created in adult female Sprague-Dawley rats. One week after infection, the defects were debrided of all nonviable tissue and then implanted with gelatin sponge with colloid silver (gelatin/Ag group) or gelatin alone (gelatin group). At 2 and 3days after debridement, significantly lower mRNA expression levels of IL-6 and TNF-α and lower plate colony count value were detected in gelatin/Ag group than control. Micro-CT analysis showed a significant increase of newly formed bone volume fraction (BV/TV) in gelatin/Ag treated defects. The HE stained cranium sections also showed a faster rate of defect closure in gelatin/Ag group than control. These findings demonstrated that gelatin sponge with colloid silver can effectively reduce the infection caused by MRSA in cranial defects and accelerate bone healing process.
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Affiliation(s)
- Yuliang Dong
- State Key Laboratory of Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, China
| | - Weiqing Liu
- State Key Laboratory of Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, China
| | - Yiling Lei
- Dental Implant Center, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Tingxi Wu
- Division of Oral Biology and Medicine, School of Dentistry, University of California Los Angeles (UCLA), Los Angeles, California, USA
| | - Shiwen Zhang
- State Key Laboratory of Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, China
| | - Yuchen Guo
- State Key Laboratory of Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, China
| | - Yuan Liu
- State Key Laboratory of Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, China
| | - Demeng Chen
- Division of Oral Biology and Medicine, School of Dentistry, University of California Los Angeles (UCLA), Los Angeles, California, USA
| | - Quan Yuan
- State Key Laboratory of Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, China; Dental Implant Center, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yongyue Wang
- State Key Laboratory of Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, China; Dental Implant Center, West China Hospital of Stomatology, Sichuan University, Chengdu, China.
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