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Zhu S, Liao X, Xu Y, Zhou N, Pan Y, Song J, Zheng T, Zhang L, Bai L, Wang Y, Zhou X, Gou M, Tao J, Liu R. 3D bioprinting of high-performance hydrogel with in-situ birth of stem cell spheroids. Bioact Mater 2025; 43:392-405. [PMID: 39399841 PMCID: PMC11470575 DOI: 10.1016/j.bioactmat.2024.09.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2024] [Revised: 09/11/2024] [Accepted: 09/23/2024] [Indexed: 10/15/2024] Open
Abstract
Digital light processing (DLP)-based bioprinting technology holds immense promise for the advancement of hydrogel constructs in biomedical applications. However, creating high-performance hydrogel constructs with this method is still a challenge, as it requires balancing the physicochemical properties of the matrix while also retaining the cellular activity of the encapsulated cells. Herein, we propose a facile and practical strategy for the 3D bioprinting of high-performance hydrogel constructs through the in-situ birth of stem cell spheroids. The strategy is achieved by loading the cell/dextran microdroplets within gelatin methacryloyl (GelMA) emulsion, where dextran functions as a decoy to capture and aggregate the cells for bioprinting while GelMA enables the mechanical support without losing the structural complexity and fidelity. Post-bioprinting, the leaching of dextran results in a smooth curved surface that promotes in-situ birth of spheroids within hydrogel constructs. This process significant enhances differentiation potential of encapsulated stem cells. As a proof-of-concept, we encapsulate dental pulp stem cells (DPSCs) within hydrogel constructs, showcasing their regenerative capabilities in dentin and neovascular-like structures in vivo. The strategy in our study enables high-performance hydrogel tissue construct fabrication with DLP-based bioprinting, which is anticipated to pave a promising way for diverse biomedical applications.
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Affiliation(s)
- Shunyao Zhu
- Department of Stomatology, Daping Hospital, Army Medical University (The Third Military Medical University), Chongqing, 400042, China
| | - Xueyuan Liao
- Department of Stomatology, Daping Hospital, Army Medical University (The Third Military Medical University), Chongqing, 400042, China
| | - Yue Xu
- Department of Stomatology, Daping Hospital, Army Medical University (The Third Military Medical University), Chongqing, 400042, China
| | - Nazi Zhou
- Department of Stomatology, Daping Hospital, Army Medical University (The Third Military Medical University), Chongqing, 400042, China
| | - Yingzi Pan
- Department of Stomatology, Daping Hospital, Army Medical University (The Third Military Medical University), Chongqing, 400042, China
| | - Jinlin Song
- College of Stomatology, Chongqing Medical University, Chongqing, China
| | - Taijing Zheng
- Department of Stomatology, Daping Hospital, Army Medical University (The Third Military Medical University), Chongqing, 400042, China
| | - Lin Zhang
- Department of Stomatology, Daping Hospital, Army Medical University (The Third Military Medical University), Chongqing, 400042, China
| | - Liyun Bai
- Department of Stomatology, Daping Hospital, Army Medical University (The Third Military Medical University), Chongqing, 400042, China
| | - Yu Wang
- Department of Stomatology, Daping Hospital, Army Medical University (The Third Military Medical University), Chongqing, 400042, China
| | - Xia Zhou
- Department of Stomatology, Daping Hospital, Army Medical University (The Third Military Medical University), Chongqing, 400042, China
- State Key Laboratory of Trauma, Burn and Combined Injury, Third Military Medical University, Chongqing, 400042, China
| | - Maling Gou
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, Sichuan, 610065, China
| | - Jie Tao
- Department of Stomatology, Daping Hospital, Army Medical University (The Third Military Medical University), Chongqing, 400042, China
| | - Rui Liu
- Department of Stomatology, Daping Hospital, Army Medical University (The Third Military Medical University), Chongqing, 400042, China
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Zheng J, Chen R, Hao J, Yang Y, Xu S, Zhang F, Zhang F, Yao Y. Design and preparation of hydrogel microspheres for spinal cord injury repair. J Biomed Mater Res A 2024; 112:2358-2371. [PMID: 39169748 DOI: 10.1002/jbm.a.37788] [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: 05/01/2024] [Revised: 07/24/2024] [Accepted: 08/10/2024] [Indexed: 08/23/2024]
Abstract
A severe disorder known as spinal cord damage causes both motor and sensory impairment in the limbs, significantly reducing the patients' quality of life. After a spinal cord injury, functional recovery and therapy have emerged as critical concerns. Hydrogel microspheres have garnered a lot of interest lately because of their enormous promise in the field of spinal cord injury rehabilitation. The material classification of hydrogel microspheres (natural and synthetic macromolecule polymers) and their synthesis methods are examined in this work. This work also covers the introduction of several kinds of hydrogel microspheres and their use as carriers in the realm of treating spinal cord injuries. Lastly, the study reviews the future prospects for hydrogel microspheres and highlights their limitations and problems. This paper can offer feasible ideas for researchers to advance the application of hydrogel microspheres in the field of spinal cord injury.
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Affiliation(s)
- Jian Zheng
- Medical School of Nantong University, Nantong, Jiangsu Province, China
- Department of Orthopedics, Affiliated Hospital of Nantong University, Nantong, Jiangsu Province, China
| | - Ruilin Chen
- Medical School of Nantong University, Nantong, Jiangsu Province, China
- Department of Orthopedics, Affiliated Hospital of Nantong University, Nantong, Jiangsu Province, China
| | - Jie Hao
- Department of Orthopedics, Affiliated Hospital of Nantong University, Nantong, Jiangsu Province, China
| | - Yang Yang
- Department of Emergency Surgery, Affiliated Hospital of Nantong University, Nantong, Jiangsu, China
| | - Shaohu Xu
- Medical School of Nantong University, Nantong, Jiangsu Province, China
- Department of Orthopedics, Affiliated Hospital of Nantong University, Nantong, Jiangsu Province, China
| | - Feiyu Zhang
- Medical School of Nantong University, Nantong, Jiangsu Province, China
- Department of Orthopedics, Affiliated Hospital of Nantong University, Nantong, Jiangsu Province, China
| | - Feng Zhang
- Department of Orthopedics, Affiliated Hospital of Nantong University, Nantong, Jiangsu Province, China
| | - Yu Yao
- Department of Orthopedics, Affiliated Hospital of Nantong University, Nantong, Jiangsu Province, China
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Zhang Y, Huang X, Luo Y, Ma X, Luo L, Liang L, Deng T, Qiao Y, Ye F, Liao H. A carbon dot nanozyme hydrogel enhances pulp regeneration activity by regulating oxidative stress in dental pulpitis. J Nanobiotechnology 2024; 22:537. [PMID: 39227963 PMCID: PMC11373145 DOI: 10.1186/s12951-024-02810-z] [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: 06/06/2024] [Accepted: 08/23/2024] [Indexed: 09/05/2024] Open
Abstract
Preserving pulp viability and promoting pulp regeneration in pulpitis have attracted widespread attention. Restricted by the oxidative stress microenvironment of dental pulpitis, excessive reactive oxygen and nitrogen species (RONS) trigger uncontrolled inflammation and exacerbate pulp tissue destruction. However, modulating redox homeostasis in inflamed pulp tissue to promote pulp regeneration remains a great challenge. Herein, this work proposes an effective antioxidative system (C-NZ/GelMA) consisting of carbon dot nanozymes (C-NZ) with gelatin methacryloyl (GelMA) to modulate the pulpitis microenvironment for dental pulp regeneration by utilizing the antioxidant properties of C-NZ and the mechanical support of an injectable GelMA hydrogel. This system effectively scavenges RONS to normalize intracellular redox homeostasis, relieving oxidative stress damage. Impressively, it can dramatically enhance the polarization of regenerative M2 macrophages. This study revealed that the C-NZ/GelMA hydrogel promoted pulp regeneration and dentin repair through its outstanding antioxidant, antiapoptotic, and anti-inflammatory effects, suggesting that the C-NZ/GelMA hydrogel is highly valuable for pulpitis treatment.
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Affiliation(s)
- Yingjuan Zhang
- Guangxi Key Laboratory of Oral and Maxillofacial Rehabilitation and Reconstruction, College & Hospital of Stomatology, Guangxi Medical University, No.10 Shuangyong Road Nanning, Guangxi, 530021, China
| | - Xianxian Huang
- Guangxi Key Laboratory of Oral and Maxillofacial Rehabilitation and Reconstruction, College & Hospital of Stomatology, Guangxi Medical University, No.10 Shuangyong Road Nanning, Guangxi, 530021, China
| | - Yicai Luo
- Guangxi Key Laboratory of Oral and Maxillofacial Rehabilitation and Reconstruction, College & Hospital of Stomatology, Guangxi Medical University, No.10 Shuangyong Road Nanning, Guangxi, 530021, China
| | - Xiangyu Ma
- Guangxi Key Laboratory of Oral and Maxillofacial Rehabilitation and Reconstruction, College & Hospital of Stomatology, Guangxi Medical University, No.10 Shuangyong Road Nanning, Guangxi, 530021, China
| | - Ling Luo
- Guangxi Key Laboratory of Oral and Maxillofacial Rehabilitation and Reconstruction, College & Hospital of Stomatology, Guangxi Medical University, No.10 Shuangyong Road Nanning, Guangxi, 530021, China
| | - Ling Liang
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry, Pharmaceutical Science of Guangxi Normal University, Guilin, 541004, PR China
| | - Tingting Deng
- Guangxi Key Laboratory of Oral and Maxillofacial Rehabilitation and Reconstruction, College & Hospital of Stomatology, Guangxi Medical University, No.10 Shuangyong Road Nanning, Guangxi, 530021, China
| | - Yang Qiao
- Guangxi Key Laboratory of Oral and Maxillofacial Rehabilitation and Reconstruction, College & Hospital of Stomatology, Guangxi Medical University, No.10 Shuangyong Road Nanning, Guangxi, 530021, China
| | - Fanggui Ye
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry, Pharmaceutical Science of Guangxi Normal University, Guilin, 541004, PR China.
| | - Hongbing Liao
- Guangxi Key Laboratory of Oral and Maxillofacial Rehabilitation and Reconstruction, College & Hospital of Stomatology, Guangxi Medical University, No.10 Shuangyong Road Nanning, Guangxi, 530021, China.
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Chu C, Qiu J, Zhao Q, Xun X, Wang H, Yuan R, Xu X. Injectable dual drug-loaded thermosensitive liposome-hydrogel composite scaffold for vascularised and innervated bone regeneration. Colloids Surf B Biointerfaces 2024; 245:114203. [PMID: 39241633 DOI: 10.1016/j.colsurfb.2024.114203] [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: 07/08/2024] [Revised: 08/24/2024] [Accepted: 09/01/2024] [Indexed: 09/09/2024]
Abstract
Adequate blood supply and thorough innervation are essential to the survival of tissue-engineered bones. Though great progress has been created in the application of bone tissue engineering technology to bone defect repair, many challenges remain, such as insufficient vascularisation and deficient innervation in newly regenerated bone. In the present study, we addressed these challenges by manipulating the bone regeneration microenvironment in terms of vascularisation and innervation. We used a novel injectable thermosensitive liposome-hydrogel composite scaffold as a sustained-release carrier for basic fibroblast growth factor (bFGF, which promotes angiogenesis and neurogenic differentiation) and dexamethasone (Dex, which promotes osteogenic differentiation). In vitro biological assessment demonstrated that the composite scaffold had sufficient cell compatibility; it enhanced the capacity for angiogenesis in human umbilical vein endothelial cells, and the capacity for neurogenic/osteogenic differentiation in human bone marrow mesenchymal stem cells. Moreover, the introduction of bFGF/Dex liposome-hydrogel composite scaffold to bone defect sites significantly improved vascularisation and innervated bone regeneration properties in a rabbit cranial defect model. Based on our findings, the regeneration of sufficiently vascularised and innervated bone tissue through a sustained-release scaffold with excellent injectability and body temperature sensitivity represents a promising tactic towards bone defect repair.
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Affiliation(s)
- Chen Chu
- School of Stomatology of Qingdao University, Qingdao 266003, PR China
| | - Jianzhong Qiu
- The Center of Stomaology, Qingdao Hospital, University of Health and Rehabilitation Sciences (Qingdao Municipal Hospital), Qingdao 266071, PR China
| | - Qian Zhao
- School of Stomatology of Qingdao University, Qingdao 266003, PR China
| | - Xingxiang Xun
- The Center of Stomaology, Qingdao Hospital, University of Health and Rehabilitation Sciences (Qingdao Municipal Hospital), Qingdao 266071, PR China
| | - Hejing Wang
- Qingdao West Coast New Area People's Hospital, Qingdao 266499, PR China
| | - Rongtao Yuan
- The Center of Stomaology, Qingdao Hospital, University of Health and Rehabilitation Sciences (Qingdao Municipal Hospital), Qingdao 266071, PR China.
| | - Xiao Xu
- The Center of Stomaology, Qingdao Hospital, University of Health and Rehabilitation Sciences (Qingdao Municipal Hospital), Qingdao 266071, PR China.
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Gao X, Li Y, Li J, Xiang X, Wu J, Zeng S. Stimuli-responsive materials in oral diseases: a review. Clin Oral Investig 2024; 28:497. [PMID: 39177681 DOI: 10.1007/s00784-024-05884-z] [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: 06/27/2024] [Accepted: 08/12/2024] [Indexed: 08/24/2024]
Abstract
OBJECTIVES Oral diseases, such as dental caries, periodontitis, and oral cancers, are highly prevalent worldwide. Many oral diseases are typically associated with bacterial infections or the proliferation of malignant cells, and they are usually located superficially. MATERIALS AND METHODS Articles were retrieved from PubMed/Medline, Web of Science. All studies focusing on stimuli-responsive materials in oral diseases were included and carefully evaluated. RESULTS Stimulus-responsive materials are innovative materials that selectively undergo structural changes and trigger drug release based on shifts at the molecular level, such as changes in pH, electric field, magnetic field, or light in the surrounding environment. These changes lead to alterations in the properties of the materials at the macro- or microscopic level. Consequently, stimuli-responsive materials are particularly suitable for treating superficial site diseases and have found extensive applications in antibacterial and anticancer therapies. These characteristics make them convenient and effective for addressing oral diseases. CONCLUSIONS This review aimed to summarize the classification, mechanism of action, and application of stimuli-responsive materials in the treatment of oral diseases, point out the existing limitations, and speculate the prospects for clinical applications. CLINICAL RELEVANCE Our findings may provide useful information of stimuli-responsive materials in oral diseases for dental clinicians.
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Affiliation(s)
- Xuguang Gao
- School and Hospital of Stomatology, Guangdong Engineering Research Center of Oral Restoration and Reconstruction, Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangzhou, 510182, P. R. China
| | - Yunyang Li
- School and Hospital of Stomatology, Guangdong Engineering Research Center of Oral Restoration and Reconstruction, Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangzhou, 510182, P. R. China
| | - Jianwen Li
- School and Hospital of Stomatology, Guangdong Engineering Research Center of Oral Restoration and Reconstruction, Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangzhou, 510182, P. R. China
| | - Xi Xiang
- School and Hospital of Stomatology, Guangdong Engineering Research Center of Oral Restoration and Reconstruction, Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangzhou, 510182, P. R. China
| | - Jingwen Wu
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.
| | - Sujuan Zeng
- School and Hospital of Stomatology, Guangdong Engineering Research Center of Oral Restoration and Reconstruction, Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangzhou, 510182, P. R. China.
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6
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Li XL, Fan W, Fan B. Dental pulp regeneration strategies: A review of status quo and recent advances. Bioact Mater 2024; 38:258-275. [PMID: 38745589 PMCID: PMC11090883 DOI: 10.1016/j.bioactmat.2024.04.031] [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: 11/27/2023] [Revised: 02/18/2024] [Accepted: 04/28/2024] [Indexed: 05/16/2024] Open
Abstract
Microorganisms, physical factors such as temperature or mechanical injury, and chemical factors such as free monomers from composite resin are the main causes of dental pulp diseases. Current clinical treatment methods for pulp diseases include the root canal therapy, vital pulp therapy and regenerative endodontic therapy. Regenerative endodontic therapy serves the purpose of inducing the regeneration of new functional pulp tissues through autologous revascularization or pulp tissue engineering. This article first discusses the current clinical methods and reviews strategies as well as the research outcomes regarding the pulp regeneration. Then the in vivo models, the prospects and challenges for regenerative endodontic therapy were further discussed.
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Affiliation(s)
- Xin-Lu Li
- The State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, 237 Luoyu Road, 430079, Wuhan, China
| | - Wei Fan
- The State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, 237 Luoyu Road, 430079, Wuhan, China
| | - Bing Fan
- The State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, 237 Luoyu Road, 430079, Wuhan, China
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Zhang H, Li L, Sun X, Hou B, Luo C. Research and development of microenvironment's influence on stem cells from the apical papilla - construction of novel research microdevices: tooth-on-a-chip. Biomed Microdevices 2024; 26:33. [PMID: 39023652 DOI: 10.1007/s10544-024-00715-0] [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] [Accepted: 06/29/2024] [Indexed: 07/20/2024]
Abstract
Stem cells are crucial in tissue engineering, and their microenvironment greatly influences their behavior. Among the various dental stem cell types, stem cells from the apical papilla (SCAPs) have shown great potential for regenerating the pulp-dentin complex. Microenvironmental cues that affect SCAPs include physical and biochemical factors. To research optimal pulp-dentin complex regeneration, researchers have developed several models of controlled biomimetic microenvironments, ranging from in vivo animal models to in vitro models, including two-dimensional cultures and three-dimensional devices. Among these models, the most powerful tool is a microfluidic microdevice, a tooth-on-a-chip with high spatial resolution of microstructures and precise microenvironment control. In this review, we start with the SCAP microenvironment in the regeneration of pulp-dentin complexes and discuss research models and studies related to the biological process.
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Affiliation(s)
- Hexuan Zhang
- Center for Microscope Enhanced Dentistry, School of Stomatology, Capital Medical University, Beijing, China
- Department of Endodontics and Operative Dentistry, School of Stomatology, Capital Medical University, Beijing, China
| | - Lingjun Li
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, China
| | - Xiaoqiang Sun
- Department of Endodontics and Operative Dentistry, School of Stomatology, Capital Medical University, Beijing, China.
| | - Benxiang Hou
- Center for Microscope Enhanced Dentistry, School of Stomatology, Capital Medical University, Beijing, China.
| | - Chunxiong Luo
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, China.
- The State Key Laboratory for Artificial Microstructures and Mesoscopic Physics, School of Physics, Peking University, Beijing, China.
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Zhou H, Li Z, Jing S, Wang B, Ye Z, Xiong W, Liu Y, Liu Y, Xu C, Kumeria T, He Y, Ye Q. Repair spinal cord injury with a versatile anti-oxidant and neural regenerative nanoplatform. J Nanobiotechnology 2024; 22:351. [PMID: 38902789 PMCID: PMC11188197 DOI: 10.1186/s12951-024-02610-5] [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: 04/15/2024] [Accepted: 05/31/2024] [Indexed: 06/22/2024] Open
Abstract
Spinal cord injury (SCI) often results in motor and sensory deficits, or even paralysis. Due to the role of the cascade reaction, the effect of excessive reactive oxygen species (ROS) in the early and middle stages of SCI severely damage neurons, and most antioxidants cannot consistently eliminate ROS at non-toxic doses, which leads to a huge compromise in antioxidant treatment of SCI. Selenium nanoparticles (SeNPs) have excellent ROS scavenging bioactivity, but the toxicity control problem limits the therapeutic window. Here, we propose a synergistic therapeutic strategy of SeNPs encapsulated by ZIF-8 (SeNPs@ZIF-8) to obtain synergistic ROS scavenging activity. Three different spatial structures of SeNPs@ZIF-8 were synthesized and coated with ferrostatin-1, a ferroptosis inhibitor (FSZ NPs), to achieve enhanced anti-oxidant and anti-ferroptosis activity without toxicity. FSZ NPs promoted the maintenance of mitochondrial homeostasis, thereby regulating the expression of inflammatory factors and promoting the polarization of macrophages into M2 phenotype. In addition, the FSZ NPs presented strong abilities to promote neuronal maturation and axon growth through activating the WNT4-dependent pathways, while prevented glial scar formation. The current study demonstrates the powerful and versatile bioactive functions of FSZ NPs for SCI treatment and offers inspiration for other neural injury diseases.
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Affiliation(s)
- Heng Zhou
- Center of Regenerative Medicine, Department of Stomatology, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Ziwei Li
- Center of Regenerative Medicine, Department of Stomatology, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Shuili Jing
- Center of Regenerative Medicine, Department of Stomatology, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Ben Wang
- The Second People's Hospital of Linhai, Linhai, Zhejiang, 317000, China
| | - Zhifei Ye
- The Second People's Hospital of Linhai, Linhai, Zhejiang, 317000, China
| | - Wei Xiong
- Center of Regenerative Medicine, Department of Stomatology, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Yonghao Liu
- Center of Regenerative Medicine, Department of Stomatology, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Ye Liu
- Center of Regenerative Medicine, Department of Stomatology, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Chun Xu
- School of Dentistry, The University of Sydney, Sydney, NSW, 2006, Australia
| | - Tushar Kumeria
- School of Materials Science and Engineering, University of New South Wales, Kensington, Sydney, NSW, 2052, Australia
| | - Yan He
- Institute of Regenerative and Translational Medicine, Tianyou Hospital, Wuhan University of Science and Technology, Wuhan, 430064, Hubei, China
- Department of Oral and Maxillofacial Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA, 02114, USA
| | - Qingsong Ye
- Center of Regenerative Medicine, Department of Stomatology, Renmin Hospital of Wuhan University, Wuhan, 430060, China.
- The Second People's Hospital of Linhai, Linhai, Zhejiang, 317000, China.
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Xuan L, Hou Y, Liang L, Wu J, Fan K, Lian L, Qiu J, Miao Y, Ravanbakhsh H, Xu M, Tang G. Microgels for Cell Delivery in Tissue Engineering and Regenerative Medicine. NANO-MICRO LETTERS 2024; 16:218. [PMID: 38884868 PMCID: PMC11183039 DOI: 10.1007/s40820-024-01421-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Accepted: 04/26/2024] [Indexed: 06/18/2024]
Abstract
Microgels prepared from natural or synthetic hydrogel materials have aroused extensive attention as multifunctional cells or drug carriers, that are promising for tissue engineering and regenerative medicine. Microgels can also be aggregated into microporous scaffolds, promoting cell infiltration and proliferation for tissue repair. This review gives an overview of recent developments in the fabrication techniques and applications of microgels. A series of conventional and novel strategies including emulsification, microfluidic, lithography, electrospray, centrifugation, gas-shearing, three-dimensional bioprinting, etc. are discussed in depth. The characteristics and applications of microgels and microgel-based scaffolds for cell culture and delivery are elaborated with an emphasis on the advantages of these carriers in cell therapy. Additionally, we expound on the ongoing and foreseeable applications and current limitations of microgels and their aggregate in the field of biomedical engineering. Through stimulating innovative ideas, the present review paves new avenues for expanding the application of microgels in cell delivery techniques.
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Affiliation(s)
- Leyan Xuan
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target and Clinical Pharmacology, the NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences and the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, 511436, People's Republic of China
| | - Yingying Hou
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target and Clinical Pharmacology, the NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences and the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, 511436, People's Republic of China
| | - Lu Liang
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target and Clinical Pharmacology, the NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences and the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, 511436, People's Republic of China
| | - Jialin Wu
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target and Clinical Pharmacology, the NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences and the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, 511436, People's Republic of China
| | - Kai Fan
- School of Automation, Hangzhou Dianzi University, Hangzhou, 310018, People's Republic of China
| | - Liming Lian
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Jianhua Qiu
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target and Clinical Pharmacology, the NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences and the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, 511436, People's Republic of China
| | - Yingling Miao
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target and Clinical Pharmacology, the NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences and the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, 511436, People's Republic of China
| | - Hossein Ravanbakhsh
- Department of Biomedical Engineering, The University of Akron, Akron, OH, 44325, USA.
| | - Mingen Xu
- School of Automation, Hangzhou Dianzi University, Hangzhou, 310018, People's Republic of China.
| | - Guosheng Tang
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target and Clinical Pharmacology, the NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences and the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, 511436, People's Republic of China.
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Yilmaz H, Bedir T, Gursoy S, Kaya E, Senel I, Tinaz GB, Gunduz O, Ustundag CB. Development of bilayer tissue-engineered scaffolds: combination of 3D printing and electrospinning methodologies. Biomed Mater 2024; 19:045029. [PMID: 38838701 DOI: 10.1088/1748-605x/ad5483] [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: 01/08/2024] [Accepted: 06/05/2024] [Indexed: 06/07/2024]
Abstract
Although different fabrication methods and biomaterials are used in scaffold development, hydrogels and electrospun materials that provide the closest environment to the extracellular matrix have recently attracted considerable interest in tissue engineering applications. However, some of the limitations encountered in the application of these methods alone in scaffold fabrication have increased the tendency to use these methods together. In this study, a bilayer scaffold was developed using 3D-printed gelatin methacryloyl (GelMA) hydrogel containing ciprofloxacin (CIP) and electrospun polycaprolactone (PCL)-collagen (COL) patches. The bilayer scaffolds were characterized in terms of chemical, morphological, mechanical, swelling, and degradation properties; drug release, antibacterial properties, and cytocompatibility of the scaffolds were also studied. In conclusion, bilayer GelMA-CIP/PCL-COL scaffolds, which exhibit sufficient porosity, mechanical strength, and antibacterial properties and also support cell growth, are promising potential substitutes in tissue engineering applications.
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Affiliation(s)
- Hilal Yilmaz
- Center for Nanotechnology & Biomaterials Application and Research (NBUAM), Marmara University, Istanbul, Turkey
- Health Biotechnology Center for Excellence Joint Practice and Research (SABIOTEK), Yildiz Technical University, Istanbul, Turkey
- Department of Bioengineering, Faculty of Chemical and Metallurgical Engineering, Yildiz Technical University, Istanbul, Turkey
| | - Tuba Bedir
- Center for Nanotechnology & Biomaterials Application and Research (NBUAM), Marmara University, Istanbul, Turkey
- Department of Metallurgical and Materials Engineering, Faculty of Technology, Marmara University, Istanbul, Turkey
| | - Sevda Gursoy
- Center for Nanotechnology & Biomaterials Application and Research (NBUAM), Marmara University, Istanbul, Turkey
- Health Biotechnology Center for Excellence Joint Practice and Research (SABIOTEK), Yildiz Technical University, Istanbul, Turkey
- Department of Bioengineering, Faculty of Chemical and Metallurgical Engineering, Yildiz Technical University, Istanbul, Turkey
| | - Elif Kaya
- Department of Basic Pharmaceutical Sciences, Faculty of Pharmacy, Marmara University, Istanbul, Turkey
| | - Ilkay Senel
- Department of Bioengineering, Faculty of Chemical and Metallurgical Engineering, Yildiz Technical University, Istanbul, Turkey
| | - Gulgun Bosgelmez Tinaz
- Health Biotechnology Center for Excellence Joint Practice and Research (SABIOTEK), Yildiz Technical University, Istanbul, Turkey
- Department of Basic Pharmaceutical Sciences, Faculty of Pharmacy, Marmara University, Istanbul, Turkey
| | - Oguzhan Gunduz
- Center for Nanotechnology & Biomaterials Application and Research (NBUAM), Marmara University, Istanbul, Turkey
- Health Biotechnology Center for Excellence Joint Practice and Research (SABIOTEK), Yildiz Technical University, Istanbul, Turkey
- Department of Metallurgical and Materials Engineering, Faculty of Technology, Marmara University, Istanbul, Turkey
| | - Cem Bulent Ustundag
- Health Biotechnology Center for Excellence Joint Practice and Research (SABIOTEK), Yildiz Technical University, Istanbul, Turkey
- Department of Bioengineering, Faculty of Chemical and Metallurgical Engineering, Yildiz Technical University, Istanbul, Turkey
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11
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Etayo-Escanilla M, Campillo N, Ávila-Fernández P, Baena JM, Chato-Astrain J, Campos F, Sánchez-Porras D, García-García ÓD, Carriel V. Comparison of Printable Biomaterials for Use in Neural Tissue Engineering: An In Vitro Characterization and In Vivo Biocompatibility Assessment. Polymers (Basel) 2024; 16:1426. [PMID: 38794619 PMCID: PMC11125121 DOI: 10.3390/polym16101426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2024] [Revised: 05/02/2024] [Accepted: 05/13/2024] [Indexed: 05/26/2024] Open
Abstract
Nervous system traumatic injuries are prevalent in our society, with a significant socioeconomic impact. Due to the highly complex structure of the neural tissue, the treatment of these injuries is still a challenge. Recently, 3D printing has emerged as a promising alternative for producing biomimetic scaffolds, which can lead to the restoration of neural tissue function. The objective of this work was to compare different biomaterials for generating 3D-printed scaffolds for use in neural tissue engineering. For this purpose, four thermoplastic biomaterials, ((polylactic acid) (PLA), polycaprolactone (PCL), Filaflex (FF) (assessed here for the first time for biomedical purposes), and Flexdym (FD)) and gelatin methacrylate (GelMA) hydrogel were subjected to printability and mechanical tests, in vitro cell-biomaterial interaction analyses, and in vivo biocompatibility assessment. The thermoplastics showed superior printing results in terms of resolution and shape fidelity, whereas FD and GelMA revealed great viscoelastic properties. GelMA demonstrated a greater cell viability index after 7 days of in vitro cell culture. Moreover, all groups displayed connective tissue encapsulation, with some inflammatory cells around the scaffolds after 10 days of in vivo implantation. Future studies will determine the usefulness and in vivo therapeutic efficacy of novel neural substitutes based on the use of these 3D-printed scaffolds.
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Affiliation(s)
- Miguel Etayo-Escanilla
- Department of Histology, Tissue Engineering Group, University of Granada, 18016 Granada, Spain; (M.E.-E.); (P.Á.-F.); (F.C.); (V.C.)
- Instituto de Investigación Biosanitaria ibs.GRANADA, 18012 Granada, Spain
- Doctoral Program in Biomedicine, University of Granada, 18012 Granada, Spain
| | - Noelia Campillo
- REGEMAT 3D, Avenida Del Conocimiento 41, A-111, 18016 Granada, Spain (J.M.B.)
- BRECA Health Care S.L., Avenida Del Conocimiento 41, 18016 Granada, Spain
| | - Paula Ávila-Fernández
- Department of Histology, Tissue Engineering Group, University of Granada, 18016 Granada, Spain; (M.E.-E.); (P.Á.-F.); (F.C.); (V.C.)
- Instituto de Investigación Biosanitaria ibs.GRANADA, 18012 Granada, Spain
| | - José Manuel Baena
- REGEMAT 3D, Avenida Del Conocimiento 41, A-111, 18016 Granada, Spain (J.M.B.)
- BRECA Health Care S.L., Avenida Del Conocimiento 41, 18016 Granada, Spain
| | - Jesús Chato-Astrain
- Department of Histology, Tissue Engineering Group, University of Granada, 18016 Granada, Spain; (M.E.-E.); (P.Á.-F.); (F.C.); (V.C.)
- Instituto de Investigación Biosanitaria ibs.GRANADA, 18012 Granada, Spain
| | - Fernando Campos
- Department of Histology, Tissue Engineering Group, University of Granada, 18016 Granada, Spain; (M.E.-E.); (P.Á.-F.); (F.C.); (V.C.)
- Instituto de Investigación Biosanitaria ibs.GRANADA, 18012 Granada, Spain
| | - David Sánchez-Porras
- Department of Histology, Tissue Engineering Group, University of Granada, 18016 Granada, Spain; (M.E.-E.); (P.Á.-F.); (F.C.); (V.C.)
- Instituto de Investigación Biosanitaria ibs.GRANADA, 18012 Granada, Spain
| | - Óscar Darío García-García
- Department of Histology, Tissue Engineering Group, University of Granada, 18016 Granada, Spain; (M.E.-E.); (P.Á.-F.); (F.C.); (V.C.)
- Instituto de Investigación Biosanitaria ibs.GRANADA, 18012 Granada, Spain
| | - Víctor Carriel
- Department of Histology, Tissue Engineering Group, University of Granada, 18016 Granada, Spain; (M.E.-E.); (P.Á.-F.); (F.C.); (V.C.)
- Instituto de Investigación Biosanitaria ibs.GRANADA, 18012 Granada, Spain
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12
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Huang L, Chen X, Yang X, Zhang Y, Qiu X. GelMA-based hydrogel biomaterial scaffold: A versatile platform for regenerative endodontics. J Biomed Mater Res B Appl Biomater 2024; 112:e35412. [PMID: 38701383 DOI: 10.1002/jbm.b.35412] [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: 06/28/2023] [Revised: 02/26/2024] [Accepted: 04/13/2024] [Indexed: 05/05/2024]
Abstract
Endodontic therapy, while generally successful, is primarily limited to mature teeth, hence the pressing need to explore regenerative approaches. Gelatin methacryloyl (GelMA) hydrogels have emerged as pivotal biomaterials, promising a bright future for dental pulp regeneration. Despite advancements in tissue engineering and biomaterials, achieving true pulp tissue regeneration remains a formidable task. GelMA stands out for its injectability, rapid gelation, and excellent biocompatibility, serving as the cornerstone of scaffold materials. In the pursuit of dental pulp regeneration, GelMA holds significant potential, facilitating the delivery of stem cells, growth factors, and other vital substances crucial for tissue repair. Presently, in the field of dental pulp regeneration, researchers have been diligently utilizing GelMA hydrogels as engineering scaffolds to transport various effective substances to promote pulp regeneration. However, existing research is relatively scattered and lacks comprehensive reviews and summaries. Therefore, the primary objective of this article is to elucidate the application of GelMA hydrogels as regenerative scaffolds in this field, thereby providing clear direction for future researchers. Additionally, this article provides a comprehensive discussion on the synthesis, characterization, and application of GelMA hydrogels in root canal therapy regeneration. Furthermore, it offers new application strategies and profound insights into future challenges, such as optimizing GelMA formulations to mimic the complex microenvironment of pulp tissue and enhancing its integration with host tissues.
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Affiliation(s)
| | - Xuan Chen
- Department of Endodontics, Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, China
| | - XiaoXia Yang
- Department of Endodontics, Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, China
| | - Yinchun Zhang
- Department of Endodontics, Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, China
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13
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Fu J, Li W, Mao T, Chen Z, Lai L, Lin J, Nie Z, Sun Y, Chen Y, Zhang Q, Li X. The potential therapeutic roles of dental pulp stem cells in spinal cord injury. Front Mol Biosci 2024; 11:1363838. [PMID: 38741719 PMCID: PMC11089131 DOI: 10.3389/fmolb.2024.1363838] [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: 12/31/2023] [Accepted: 03/04/2024] [Indexed: 05/16/2024] Open
Abstract
Spinal cord injury (SCI) can lead to serious functional disorders, which have serious impacts on patients and society. The current traditional treatments of SCI are not effective the injured spinal cord is difficult to repair and regenerate. In recent years, stem cell transplantation for the treatment of SCI has been a hot research topic. Dental pulp stem cells have strong abilities of self-renewal and multi-directional differentiation, and have been applied for tissue engineering and regenerative medicine. And dental pulp stem cells have certain advantages in neuro-regenetation, bringing new hope to biotherapy for SCI. This article reviews the characteristics of dental pulp stem cells and their research progress in the treatment of SCI.
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Affiliation(s)
- Jing Fu
- Department of Stomatology, Hangzhou Xixi Hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou, China
| | - Wenjie Li
- Department of Anesthesiology and Surgery, Qingdao Municipal Hospital Group, Qingdao, China
| | - Tengfei Mao
- Yuncheng Central Hospital Affiliated to Shanxi Medical University, Yuncheng, China
| | - Zaipeng Chen
- College of Pharmacy, Guizhou Medical University, Guiyang, China
| | - Lili Lai
- Department of Orthopedics, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Jiachen Lin
- Department of Orthopedics, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Zhiqiang Nie
- College of Pharmacy, Guizhou Medical University, Guiyang, China
| | - Yunkai Sun
- The Eighth Clinical Medical College of Shanxi Medical University, Yuncheng, China
| | - Yanqin Chen
- College of Pharmacy, Guizhou Medical University, Guiyang, China
| | - Qin Zhang
- Yuncheng Central Hospital Affiliated to Shanxi Medical University, Yuncheng, China
| | - Xigong Li
- Department of Orthopedics, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
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14
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Jiu J, Liu H, Li D, Li J, Liu L, Yang W, Yan L, Li S, Zhang J, Li X, Li JJ, Wang B. 3D bioprinting approaches for spinal cord injury repair. Biofabrication 2024; 16:032003. [PMID: 38569491 DOI: 10.1088/1758-5090/ad3a13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Accepted: 04/03/2024] [Indexed: 04/05/2024]
Abstract
Regenerative healing of spinal cord injury (SCI) poses an ongoing medical challenge by causing persistent neurological impairment and a significant socioeconomic burden. The complexity of spinal cord tissue presents hurdles to successful regeneration following injury, due to the difficulty of forming a biomimetic structure that faithfully replicates native tissue using conventional tissue engineering scaffolds. 3D bioprinting is a rapidly evolving technology with unmatched potential to create 3D biological tissues with complicated and hierarchical structure and composition. With the addition of biological additives such as cells and biomolecules, 3D bioprinting can fabricate preclinical implants, tissue or organ-like constructs, andin vitromodels through precise control over the deposition of biomaterials and other building blocks. This review highlights the characteristics and advantages of 3D bioprinting for scaffold fabrication to enable SCI repair, including bottom-up manufacturing, mechanical customization, and spatial heterogeneity. This review also critically discusses the impact of various fabrication parameters on the efficacy of spinal cord repair using 3D bioprinted scaffolds, including the choice of printing method, scaffold shape, biomaterials, and biological supplements such as cells and growth factors. High-quality preclinical studies are required to accelerate the translation of 3D bioprinting into clinical practice for spinal cord repair. Meanwhile, other technological advances will continue to improve the regenerative capability of bioprinted scaffolds, such as the incorporation of nanoscale biological particles and the development of 4D printing.
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Affiliation(s)
- Jingwei Jiu
- Department of Orthopaedic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, People's Republic of China
- Department of Orthopaedic Surgery, Shanxi Medical University Second Affiliated Hospital, Taiyuan, People's Republic of China
| | - Haifeng Liu
- Department of Orthopaedic Surgery, Shanxi Medical University Second Affiliated Hospital, Taiyuan, People's Republic of China
| | - Dijun Li
- Department of Orthopaedic Surgery, Shanxi Medical University Second Affiliated Hospital, Taiyuan, People's Republic of China
| | - Jiarong Li
- School of Biomedical Engineering, Faculty of Engineering and IT, University of Technology Sydney, Ultimo, NSW 2007, Australia
| | - Lu Liu
- School of Biomedical Engineering, Faculty of Engineering and IT, University of Technology Sydney, Ultimo, NSW 2007, Australia
| | - Wenjie Yang
- School of Biomedical Engineering, Faculty of Engineering and IT, University of Technology Sydney, Ultimo, NSW 2007, Australia
| | - Lei Yan
- Department of Orthopaedic Surgery, Shanxi Medical University Second Affiliated Hospital, Taiyuan, People's Republic of China
| | - Songyan Li
- Department of Orthopaedic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, People's Republic of China
| | - Jing Zhang
- Department of Emergency Surgery, The Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou 550001, People's Republic of China
| | - Xiaoke Li
- Department of Orthopaedic Surgery, Shanxi Medical University Second Affiliated Hospital, Taiyuan, People's Republic of China
| | - Jiao Jiao Li
- School of Biomedical Engineering, Faculty of Engineering and IT, University of Technology Sydney, Ultimo, NSW 2007, Australia
| | - Bin Wang
- Department of Orthopaedic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, People's Republic of China
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15
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Lu G, Zhao G, Wang S, Li H, Yu Q, Sun Q, Wang B, Wei L, Fu Z, Zhao Z, Yang L, Deng L, Zheng X, Cai M, Lu M. Injectable Nano-Micro Composites with Anti-bacterial and Osteogenic Capabilities for Minimally Invasive Treatment of Osteomyelitis. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2306964. [PMID: 38234236 DOI: 10.1002/advs.202306964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Revised: 11/17/2023] [Indexed: 01/19/2024]
Abstract
The effective management of osteomyelitis remains extremely challenging due to the difficulty associated with treating bone defects, the high probability of recurrence, the requirement of secondary surgery or multiple surgeries, and the difficulty in eradicating infections caused by methicillin-resistant Staphylococcus aureus (MRSA). Hence, smart biodegradable biomaterials that provide effective and precise local anti-infection effects and can promote the repair of bone defects are actively being developed. Here, a novel nano-micro composite is fabricated by combining calcium phosphate (CaP) nanosheets with drug-loaded GelMA microspheres via microfluidic technology. The microspheres are covalently linked with vancomycin (Van) through an oligonucleotide (oligo) linker using an EDC/NHS carboxyl activator. Accordingly, a smart nano-micro composite called "CaP@MS-Oligo-Van" is synthesized. The porous CaP@MS-Oligo-Van composites can target and capture bacteria. They can also release Van in response to the presence of bacterial micrococcal nuclease and Ca2+, exerting additional antibacterial effects and inhibiting the inflammatory response. Finally, the released CaP nanosheets can promote bone tissue repair. Overall, the findings show that a rapid, targeted drug release system based on CaP@MS-Oligo-Van can effectively target bone tissue infections. Hence, this agent holds potential in the clinical treatment of osteomyelitis caused by MRSA.
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Affiliation(s)
- Guanghua Lu
- Department of Orthopaedics, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, P. R. China
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200240, P. R. China
| | - Gang Zhao
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200240, P. R. China
| | - Shen Wang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Hanqing Li
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200240, P. R. China
| | - Qiang Yu
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200240, P. R. China
| | - Qi Sun
- Department of Orthopaedics, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, P. R. China
| | - Bo Wang
- Department of Orthopaedics, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, P. R. China
| | - Li Wei
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200240, P. R. China
| | - Zi Fu
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200240, P. R. China
| | - Zhenyu Zhao
- Department of Orthopaedics, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, P. R. China
| | - Linshan Yang
- Taikang Bybo Dental, Shanghai, 200001, P. R. China
| | - Lianfu Deng
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200240, P. R. China
| | - Xianyou Zheng
- Department of Orthopedic Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200233, China
| | - Ming Cai
- Department of Orthopaedics, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, P. R. China
| | - Min Lu
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200240, P. R. China
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16
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Qin T, Li C, Xu Y, Qin Y, Jin Y, He R, Luo Z, Zhao J, Duan C, Lu H, Cao Y, Hu J. Local delivery of EGFR +NSCs-derived exosomes promotes neural regeneration post spinal cord injury via miR-34a-5p/HDAC6 pathway. Bioact Mater 2024; 33:424-443. [PMID: 38059122 PMCID: PMC10696309 DOI: 10.1016/j.bioactmat.2023.11.013] [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: 08/02/2023] [Revised: 11/18/2023] [Accepted: 11/19/2023] [Indexed: 12/08/2023] Open
Abstract
Spinal cord injury (SCI) causes severe axon damage, usually leading to permanent paraparesis, which still lacks effective regenerative therapy. Recent studies have suggested that exosomes derived from neural stem cells (NSCs) may hold promise as attractive candidates for SCI treatment. Epidermal Growth Factor Receptor positive NSC (EGFR+NSC) is a subpopulation of endogenous NSCs, showing strong regenerative capability in central nervous system disease. In the current study, we isolated exosomes from the EGFR+NSCs (EGFR+NSCs-Exos) and discovered that local delivery of EGFR+NSCs-Exos can effectively promote neurite regrowth in the injury site of spinal cord-injured mice and improve their neurological function recovery. Using the miRNA-seq, we firstly characterized the microRNAs (miRNAs) cargo of EGFR+NSCs-Exos and identified miR-34a-5p which was highly enriched in EGFR+NSCs derived exosomes. We further interpreted that exosomal miR-34a-5p could be transferred to neurons and inhibit the HDAC6 expression by directly binding to its mRNA, contributing to microtubule stabilization and autophagy induction for aiding SCI repair. Overall, our research demonstrated a novel therapeutic approach to improving neurological functional recovery by using exosomes secreted from a subpopulation of endogenous NSCs and providing a precise cell-free treatment strategy for SCI repair.
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Affiliation(s)
- Tian Qin
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Xiangya Road 87, Changsha, 410008, China
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Xiangya Road 87, Changsha, 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Xiangya Road 87, Changsha, 410008, China
| | - Chengjun Li
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Xiangya Road 87, Changsha, 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Xiangya Road 87, Changsha, 410008, China
- Department of Sports Medicine, Xiangya Hospital, Central South University, Xiangya Road 87, Changsha, 410008, China
| | - Yan Xu
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Xiangya Road 87, Changsha, 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Xiangya Road 87, Changsha, 410008, China
- Department of Sports Medicine, Xiangya Hospital, Central South University, Xiangya Road 87, Changsha, 410008, China
| | - Yiming Qin
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Xiangya Road 87, Changsha, 410008, China
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Xiangya Road 87, Changsha, 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Xiangya Road 87, Changsha, 410008, China
| | - Yuxin Jin
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Xiangya Road 87, Changsha, 410008, China
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Xiangya Road 87, Changsha, 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Xiangya Road 87, Changsha, 410008, China
| | - Rundong He
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Xiangya Road 87, Changsha, 410008, China
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Xiangya Road 87, Changsha, 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Xiangya Road 87, Changsha, 410008, China
| | - Zixiang Luo
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Xiangya Road 87, Changsha, 410008, China
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Xiangya Road 87, Changsha, 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Xiangya Road 87, Changsha, 410008, China
| | - Jinyun Zhao
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Xiangya Road 87, Changsha, 410008, China
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Xiangya Road 87, Changsha, 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Xiangya Road 87, Changsha, 410008, China
| | - Chunyue Duan
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Xiangya Road 87, Changsha, 410008, China
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Xiangya Road 87, Changsha, 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Xiangya Road 87, Changsha, 410008, China
| | - Hongbin Lu
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Xiangya Road 87, Changsha, 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Xiangya Road 87, Changsha, 410008, China
- Department of Sports Medicine, Xiangya Hospital, Central South University, Xiangya Road 87, Changsha, 410008, China
| | - Yong Cao
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Xiangya Road 87, Changsha, 410008, China
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Xiangya Road 87, Changsha, 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Xiangya Road 87, Changsha, 410008, China
| | - Jianzhong Hu
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Xiangya Road 87, Changsha, 410008, China
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Xiangya Road 87, Changsha, 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Xiangya Road 87, Changsha, 410008, China
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17
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Zhao F, Zhang Z, Guo W. The 3-dimensional printing for dental tissue regeneration: the state of the art and future challenges. Front Bioeng Biotechnol 2024; 12:1356580. [PMID: 38456006 PMCID: PMC10917914 DOI: 10.3389/fbioe.2024.1356580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Accepted: 02/06/2024] [Indexed: 03/09/2024] Open
Abstract
Tooth loss or damage poses great threaten to oral and general health. While contemporary clinical treatments have enabled tooth restoration to a certain extent, achieving functional tooth regeneration remains a challenging task due to the intricate and hierarchically organized architecture of teeth. The past few decades have seen a rapid development of three-dimensional (3D) printing technology, which has provided new breakthroughs in the field of tissue engineering and regenerative dentistry. This review outlined the bioactive materials and stem/progenitor cells used in dental regeneration, summarized recent advancements in the application of 3D printing technology for tooth and tooth-supporting tissue regeneration, including dental pulp, dentin, periodontal ligament, alveolar bone and so on. It also discussed current obstacles and potential future directions, aiming to inspire innovative ideas and encourage further development in regenerative medicine.
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Affiliation(s)
- Fengxiao Zhao
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- Department of Pediatric Dentistry, West China School of Stomatology, Sichuan University, Chengdu, China
| | - Zhijun Zhang
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- Department of Pediatric Dentistry, West China School of Stomatology, Sichuan University, Chengdu, China
| | - Weihua Guo
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- Department of Pediatric Dentistry, West China School of Stomatology, Sichuan University, Chengdu, China
- Yunnan Key Laboratory of Stomatology, The Affiliated Hospital of Stomatology, School of Stomatology, Kunming Medical University, Kunming, China
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Jia X, Fan X, Chen C, Lu Q, Zhou H, Zhao Y, Wang X, Han S, Ouyang L, Yan H, Dai H, Geng H. Chemical and Structural Engineering of Gelatin-Based Delivery Systems for Therapeutic Applications: A Review. Biomacromolecules 2024; 25:564-589. [PMID: 38174643 DOI: 10.1021/acs.biomac.3c01021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
As a biodegradable and biocompatible protein derived from collagen, gelatin has been extensively exploited as a fundamental component of biological scaffolds and drug delivery systems for precise medicine. The easily engineered gelatin holds great promise in formulating various delivery systems to protect and enhance the efficacy of drugs for improving the safety and effectiveness of numerous pharmaceuticals. The remarkable biocompatibility and adjustable mechanical properties of gelatin permit the construction of active 3D scaffolds to accelerate the regeneration of injured tissues and organs. In this Review, we delve into diverse strategies for fabricating and functionalizing gelatin-based structures, which are applicable to gene and drug delivery as well as tissue engineering. We emphasized the advantages of various gelatin derivatives, including methacryloyl gelatin, polyethylene glycol-modified gelatin, thiolated gelatin, and alendronate-modified gelatin. These derivatives exhibit excellent physicochemical and biological properties, allowing the fabrication of tailor-made structures for biomedical applications. Additionally, we explored the latest developments in the modulation of their physicochemical properties by combining additive materials and manufacturing platforms, outlining the design of multifunctional gelatin-based micro-, nano-, and macrostructures. While discussing the current limitations, we also addressed the challenges that need to be overcome for clinical translation, including high manufacturing costs, limited application scenarios, and potential immunogenicity. This Review provides insight into how the structural and chemical engineering of gelatin can be leveraged to pave the way for significant advancements in biomedical applications and the improvement of patient outcomes.
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Affiliation(s)
- Xiaoyu Jia
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212018, China
| | - Xin Fan
- Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518075, China
| | - Cheng Chen
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212018, China
| | - Qianyun Lu
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212018, China
| | - Hongfeng Zhou
- Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518075, China
| | - Yanming Zhao
- Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518075, China
| | - Xingang Wang
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212018, China
| | - Sanyang Han
- Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518075, China
| | - Liliang Ouyang
- Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China
| | - Hongji Yan
- Department of Medical Cell Biology (MCB), Uppsala University (UU), 751 05 Uppsala, Sweden
| | - Hongliang Dai
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212018, China
| | - Hongya Geng
- Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518075, China
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Yuan S, Yang X, Wang X, Chen J, Tian W, Yang B. Injectable Xenogeneic Dental Pulp Decellularized Extracellular Matrix Hydrogel Promotes Functional Dental Pulp Regeneration. Int J Mol Sci 2023; 24:17483. [PMID: 38139310 PMCID: PMC10743504 DOI: 10.3390/ijms242417483] [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: 11/08/2023] [Revised: 12/09/2023] [Accepted: 12/12/2023] [Indexed: 12/24/2023] Open
Abstract
The present challenge in dental pulp tissue engineering scaffold materials lies in the development of tissue-specific scaffolds that are conducive to an optimal regenerative microenvironment and capable of accommodating intricate root canal systems. This study utilized porcine dental pulp to derive the decellularized extracellular matrix (dECM) via appropriate decellularization protocols. The resultant dECM was dissolved in an acid pepsin solution to form dECM hydrogels. The analysis encompassed evaluating the microstructure and rheological properties of dECM hydrogels and evaluated their biological properties, including in vitro cell viability, proliferation, migration, tube formation, odontogenic, and neurogenic differentiation. Gelatin methacrylate (GelMA) hydrogel served as the control. Subsequently, hydrogels were injected into treated dentin matrix tubes and transplanted subcutaneously into nude mice to regenerate dental pulp tissue in vivo. The results showed that dECM hydrogels exhibited exceptional injectability and responsiveness to physiological temperature. It supported the survival, odontogenic, and neurogenic differentiation of dental pulp stem cells in a 3D culture setting. Moreover, it exhibited a superior ability to promote cell migration and angiogenesis compared to GelMA hydrogel in vitro. Additionally, the dECM hydrogel demonstrated the capability to regenerate pulp-like tissue with abundant blood vessels and a fully formed odontoblast-like cell layer in vivo. These findings highlight the potential of porcine dental pulp dECM hydrogel as a specialized scaffold material for dental pulp regeneration.
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Affiliation(s)
- Shengmeng Yuan
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China; (S.Y.); (X.W.); (J.C.)
- National Engineering Laboratory for Oral Regenerative Medicine, Engineering Research Center of Oral Translational Medicine, Ministry of Education, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
- Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Xueting Yang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China; (S.Y.); (X.W.); (J.C.)
- National Engineering Laboratory for Oral Regenerative Medicine, Engineering Research Center of Oral Translational Medicine, Ministry of Education, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
- Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Xiuting Wang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China; (S.Y.); (X.W.); (J.C.)
- National Engineering Laboratory for Oral Regenerative Medicine, Engineering Research Center of Oral Translational Medicine, Ministry of Education, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
- Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Jinlong Chen
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China; (S.Y.); (X.W.); (J.C.)
- National Engineering Laboratory for Oral Regenerative Medicine, Engineering Research Center of Oral Translational Medicine, Ministry of Education, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
- Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Weidong Tian
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China; (S.Y.); (X.W.); (J.C.)
- National Engineering Laboratory for Oral Regenerative Medicine, Engineering Research Center of Oral Translational Medicine, Ministry of Education, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
- Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Bo Yang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China; (S.Y.); (X.W.); (J.C.)
- National Engineering Laboratory for Oral Regenerative Medicine, Engineering Research Center of Oral Translational Medicine, Ministry of Education, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
- Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
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