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Shi L, Ye X, Zhou J, Fang Y, Yang J, Meng M, Zou J. Roles of DNA methylation in influencing the functions of dental-derived mesenchymal stem cells. Oral Dis 2024; 30:2797-2806. [PMID: 37856651 DOI: 10.1111/odi.14770] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 09/11/2023] [Accepted: 09/30/2023] [Indexed: 10/21/2023]
Abstract
OBJECTIVE DNA methylation as intensively studied epigenetic regulatory mechanism exerts pleiotropic effects on dental-derived mesenchymal stem cells (DMSCs). DMSCs have self-renewal and multidifferentiation potential. Here, this review aims at summarizing the research status about application of DMSCs in tissue engineering and clarifying the roles of DNA methylation in influencing the functions of DMSCs, with expectation of paving the way for its in-depth exploration in tissue engineering. METHOD The current research status about influence of DNA methylation in DMSCs was acquired by MEDLINE (through PubMed) and Web of Science using the keywords 'DNA methylation', 'dental-derived mesenchymal stem cells', 'dental pulp stem cells', 'periodontal ligament stem cells', 'dental follicle stem cells', 'stem cells from the apical papilla', 'stem cells from human exfoliated deciduous teeth', and 'gingival-derived mesenchymal stem cells'. RESULTS This review indicates DNA methylation affects DMSCs' differentiation and function through inhibiting or enhancing the expression of specific gene resulted by DNA methylation-related genes or relevant inhibitors. CONCLUSION DNA methylation can influence DMSCs in aspects of osteogenesis, adipogenesis, immunomodulatory function, and so on. Yet, the present studies about DNA methylation in DMSCs commonly focus on dental pulp stem cells (DPSCs) and periodontal ligament stem cells (PDLSCs). Little has been reported for other DMSCs.
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Affiliation(s)
- Liyan Shi
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Xingchen Ye
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Jing Zhou
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yuwen Fang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Jiazhen Yang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Mingmei Meng
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Jing Zou
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, China
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2
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Winter J, Jepsen S. Role of innate host defense proteins in oral cancerogenesis. Periodontol 2000 2024. [PMID: 38265172 DOI: 10.1111/prd.12552] [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: 10/19/2023] [Revised: 12/22/2023] [Accepted: 01/09/2024] [Indexed: 01/25/2024]
Abstract
It is nowadays well accepted that chronic inflammation plays a pivotal role in tumor initiation and progression. Under this aspect, the oral cavity is predestined to examine this connection because periodontitis is a highly prevalent chronic inflammatory disease and oral squamous cell carcinomas are the most common oral malignant lesions. In this review, we describe how particular molecules of the human innate host defense system may participate as molecular links between these two important chronic noncommunicable diseases (NCDs). Specific focus is directed toward antimicrobial polypeptides, such as the cathelicidin LL-37 and human defensins, as well as S100 proteins and alarmins. We report in which way these peptides and proteins are able to initiate and support oral tumorigenesis, showing direct mechanisms by binding to growth-stimulating cell surface receptors and/or indirect effects, for example, inducing tumor-promoting genes. Finally, bacterial challenges with impact on oral cancerogenesis are briefly addressed.
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Affiliation(s)
- Jochen Winter
- Faculty of Medicine, Department of Periodontology, Operative and Preventive Dentistry, University Hospital, University of Bonn, Bonn, Germany
| | - Søren Jepsen
- Faculty of Medicine, Department of Periodontology, Operative and Preventive Dentistry, University Hospital, University of Bonn, Bonn, Germany
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3
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Kadkhoda Z, Motie P, Rad MR, Mohaghegh S, Kouhestani F, Motamedian SR. Comparison of Periodontal Ligament Stem Cells with Mesenchymal Stem Cells from Other Sources: A Scoping Systematic Review of In vitro and In vivo Studies. Curr Stem Cell Res Ther 2024; 19:497-522. [PMID: 36397622 DOI: 10.2174/1574888x17666220429123319] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Revised: 12/31/2021] [Accepted: 03/11/2022] [Indexed: 11/22/2022]
Abstract
OBJECTIVE The application of stem cells in regenerative medicine depends on their biological properties. This scoping review aimed to compare the features of periodontal ligament stem cells (PDLSSCs) with stem cells derived from other sources. DESIGN An electronic search in PubMed/Medline, Embase, Scopus, Google Scholar and Science Direct was conducted to identify in vitro and in vivo studies limited to English language. RESULTS Overall, 65 articles were included. Most comparisons were made between bone marrow stem cells (BMSCs) and PDLSCs. BMSCs were found to have lower proliferation and higher osteogenesis potential in vitro and in vivo than PDLSCs; on the contrary, dental follicle stem cells and umbilical cord mesenchymal stem cells (UCMSCs) had a higher proliferative ability and lower osteogenesis than PDLSCs. Moreover, UCMSCs exhibited a higher apoptotic rate, hTERT expression, and relative telomerase length. The immunomodulatory function of adipose-derived stem cells and BMSCs was comparable to PDLSCs. Gingival mesenchymal stem cells showed less sensitivity to long-term culture. Both pure and mixed gingival cells had lower osteogenic ability compared to PDLSCs. Comparison of dental pulp stem cells (DPSCs) with PDLSCs regarding proliferation rate, osteo/adipogenesis, and immunomodulatory properties was contradictory; however, in vivo bone formation of DPSCs seemed to be lower than PDLSCs. CONCLUSION In light of the performed comparative studies, PDLSCs showed comparable results to stem cells derived from other sources; however, further in vivo studies are needed to determine the actual pros and cons of stem cells in comparison to each other.
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Affiliation(s)
- Zeinab Kadkhoda
- Department of Periodontology, School of Dentistry, Shahid Beheshti University of Medical Science, Tehran, Iran
| | - Parisa Motie
- Student Research Committee, School of Dentistry, Shahid Beheshti University of Medical Science, Tehran, Iran
| | - Maryam Rezaei Rad
- Dental Research Center, Research Institute of Dental Sciences, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Sadra Mohaghegh
- Student Research Committee, School of Dentistry, Shahid Beheshti University of Medical Science, Tehran, Iran
| | - Farnaz Kouhestani
- Department of Periodontics, School of Dentistry, Bushehr University of Medical Sciences, Tehran, Iran
| | - Saeed Reza Motamedian
- Dentofacial Deformities Research Center, Research Institute of Dental Sciences, Department of Orthodontics, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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4
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Wang W, Xu Z, Liu M, Cai M, Liu X. Prospective applications of extracellular vesicle-based therapies in regenerative medicine: implications for the use of dental stem cell-derived extracellular vesicles. Front Bioeng Biotechnol 2023; 11:1278124. [PMID: 37936823 PMCID: PMC10627172 DOI: 10.3389/fbioe.2023.1278124] [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: 08/15/2023] [Accepted: 10/06/2023] [Indexed: 11/09/2023] Open
Abstract
In the 21st century, research on extracellular vesicles (EVs) has made remarkable advancements. Recently, researchers have uncovered the exceptional biological features of EVs, highlighting their prospective use as therapeutic targets, biomarkers, innovative drug delivery systems, and standalone therapeutic agents. Currently, mesenchymal stem cells stand out as the most potent source of EVs for clinical applications in tissue engineering and regenerative medicine. Owing to their accessibility and capability of undergoing numerous differentiation inductions, dental stem cell-derived EVs (DSC-EVs) offer distinct advantages in the field of tissue regeneration. Nonetheless, it is essential to note that unmodified EVs are currently unsuitable for use in the majority of clinical therapeutic scenarios. Considering the high feasibility of engineering EVs, it is imperative to modify these EVs to facilitate the swift translation of theoretical knowledge into clinical practice. The review succinctly presents the known biotherapeutic effects of odontogenic EVs and the underlying mechanisms. Subsequently, the current state of functional cargo loading for engineered EVs is critically discussed. For enhancing EV targeting and in vivo circulation time, the review highlights cutting-edge engineering solutions that may help overcome key obstacles in the clinical application of EV therapeutics. By presenting innovative concepts and strategies, this review aims to pave the way for the adaptation of DSC-EVs in regenerative medicine within clinical settings.
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Affiliation(s)
- Wenhao Wang
- School of Stomatology, Jinan University, Guangzhou, China
- Center of Stomatology, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Zinan Xu
- School of Stomatology, Jinan University, Guangzhou, China
- Center of Stomatology, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Minyi Liu
- Center of Stomatology, The First Affiliated Hospital of Jinan University, Guangzhou, China
- Clinical Research Platform for Interdiscipline, Jinan University, Guangzhou, China
| | - Mingxiang Cai
- School of Stomatology, Jinan University, Guangzhou, China
- Center of Stomatology, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Xiangning Liu
- School of Stomatology, Jinan University, Guangzhou, China
- Center of Stomatology, The First Affiliated Hospital of Jinan University, Guangzhou, China
- Clinical Research Platform for Interdiscipline, Jinan University, Guangzhou, China
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5
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Han X, Li G, Yang H, Zhang C, Cao Y, Wang N, Ge L, Fan Z. METTL3 Promotes Osteo/Odontogenic Differentiation of Stem Cells by Inhibiting miR-196b-5p Maturation. Stem Cells Int 2023; 2023:8992284. [PMID: 37323630 PMCID: PMC10266913 DOI: 10.1155/2023/8992284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Revised: 03/27/2023] [Accepted: 05/11/2023] [Indexed: 06/17/2023] Open
Abstract
Mesenchymal stem cells (MSCs) have been considered a potential method for the regeneration of tooth and maxillofacial bone defects based on the multidirectional differentiation characteristics of MSCs. miRNAs have been found to play a key role in the differentiation of MSCs. However, its effectiveness still needs to be improved, and its internal mechanism is still unclear. In the present study, our data discovered that the knockdown of miR-196b-5p promoted alkaline phosphatase (ALP) activity assay, mineralization in vitro, and expressions of osteo/odontogenic differentiation markers DSPP and OCN and enhanced in vivo osteo/odontogenic differentiation of stem cells of the apical papilla (SCAPs). Mechanistically, the results indicated that METTL3-dependent N6-methyladenosine (m6A) methylation inhibited miR-196b-5p maturation by the microprocessor protein DGCR8. Moreover, miR-196b-5p indirectly negatively regulates METTL3 in SCAPs. Then, METTL3 was found to strengthen the ALP activity assay, mineralization, and expressions of osteo/dentinogenic differentiation markers. Taken together, our findings highlight the critical roles of the METTL3-miR-196b-5p signaling axis in an m6A-dependent manner in osteo/odontogenic differentiation of SCAPs, identifying some potential targets for tooth and maxillofacial bone defects.
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Affiliation(s)
- Xiao Han
- Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Beijing Stomatological Hospital, School of Stomatology, Capital Medical University, Beijing 100050, China
| | - Guoyue Li
- Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Beijing Stomatological Hospital, School of Stomatology, Capital Medical University, Beijing 100050, China
| | - Haoqing Yang
- Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Beijing Stomatological Hospital, School of Stomatology, Capital Medical University, Beijing 100050, China
| | - Chen Zhang
- Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Beijing Stomatological Hospital, School of Stomatology, Capital Medical University, Beijing 100050, China
| | - Yangyang Cao
- Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Beijing Stomatological Hospital, School of Stomatology, Capital Medical University, Beijing 100050, China
| | - Ning Wang
- Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Beijing Stomatological Hospital, School of Stomatology, Capital Medical University, Beijing 100050, China
| | - Lihua Ge
- Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Beijing Stomatological Hospital, School of Stomatology, Capital Medical University, Beijing 100050, China
| | - Zhipeng Fan
- Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Beijing Stomatological Hospital, School of Stomatology, Capital Medical University, Beijing 100050, China
- Research Unit of Tooth Development and Regeneration, Chinese Academy of Medical Sciences, China
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6
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Ma S, Jiang Y, Qian Y, Du J, Yu X, Luo S, Chen Z. The Emerging Biological Functions of Exosomes from Dental Tissue-Derived Mesenchymal Stem Cells. Cell Reprogram 2023; 25:53-64. [PMID: 37053510 DOI: 10.1089/cell.2022.0147] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/15/2023] Open
Abstract
Exosomes are one kind of small-cell extracellular membranous vesicles that can regulate intercellular communication and give rise to mediating the biological behaviors of cells, involving in tissue formation, repair, the modulation of inflammation, and nerve regeneration. The abundant kinds of cells can secret exosomes, among them, mesenchymal stem cells (MSCs) are very perfect cells for mass production of exosomes. Dental tissue-derived mesenchymal stem cells (DT-MSCs), including dental pulp stem cells, stem cells from exfoliated deciduous teeth, stem cells from apical papilla, stem cells from human periodontal ligament (PDLSCs), gingiva-derived mesenchymal stem cells, dental follicle stem cells, tooth germ stem cells, and alveolar bone-derived mesenchymal stem cells, are now known as a potent tool in the area of cell regeneration and therapy, more importantly, DT-MSCs can also release numerous types of exosomes, participating in the biological functions of cells. Hence, we briefly depict the characteristics of exosomes, give a detailed description of the biological functions and clinical application in some respects of exosomes from DT-MSCs through systematically reviewing the latest evidence, and provide a rationale for their use as tools for potential application in tissue engineering.
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Affiliation(s)
- Shu Ma
- Department of Endodontics, Guiyang Hospital of Stomatology, Guiyang, China
| | - Yidi Jiang
- Department of Endodontics, Guiyang Hospital of Stomatology, Guiyang, China
| | - Yuyan Qian
- Department of Endodontics, Guiyang Hospital of Stomatology, Guiyang, China
| | - Jing Du
- Department of Endodontics, Guiyang Hospital of Stomatology, Guiyang, China
| | - Xiaoyan Yu
- Department of Periodontics, Guiyang Hospital of Stomatology, Guiyang, China
| | - Shiyi Luo
- GuiZhou University Medical College, Guiyang, China
| | - Zhu Chen
- Department of Endodontics, Guiyang Hospital of Stomatology, Guiyang, China
- Key Laboratory of Oral Disease Research, School of Stomatology, Zunyi Medical University, Zunyi, China
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7
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Ebadi M, Miresmaeili A, Shojaei S, Farhadi S, Rajabi S. Isolation and characterization of apical papilla cells from root end of human third molar and their differentiation into cementoblast cells: an in vitro study. Biol Proced Online 2023; 25:2. [PMID: 36690939 PMCID: PMC9869574 DOI: 10.1186/s12575-023-00190-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Accepted: 01/11/2023] [Indexed: 01/24/2023] Open
Abstract
BACKGROUND Periodontal regeneration, treatment of periodontal-related diseases and improving the function of implants are global therapeutic challenges. The differentiation of human stem cells from apical papilla into cementoblasts may provide a strategy for periodontitis treatment. This study aimed to evaluate the differentiation of primary human stem cells apical papilla (hSCAPs) to cementoblast cells. MATERIAL AND METHODS SCAPs cells were isolated from human third molar and then incubated for 21 days in a differentiation microenvironment. Alkaline phosphatase (ALP) and Alizarin red S staining assays were performed to evaluate the calcium deposition and formation of hydroxyapatite in the cultured hSCAPs microenvironment. Real-time polymerase chain reaction (RT-PCR) assay was performed for cementum protein 1 (CEMP1), collagen type I (COL1), F-Spondin (SPON1), osteocalcin (OCN), and osteopontin (OPN) as specific markers of cementoblasts and their progenitors. RESULTS ALP phosphatase activity in day 21 of treatment demonstrated a significant increase in ALP compared to the control. Alizarin red S staining assay showed that the differentiated hSCAPs offered a great amount of calcium deposition nodules compared to the control. The increased expression level of CEMP1, OCN, OPN, COL1 and Spon1 was observed in days 7, 14 and 21 compared to the control, while greatest expression level was observed in day 21. CONCLUSION In conclusion, the differentiation microenviroment is convenient and useful for promoting the differentiation of hSCAPs into cementoblast.
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Affiliation(s)
- Morvarid Ebadi
- grid.411463.50000 0001 0706 2472Department of Biomedical Engineering, Central Tehran Branch, Islamic Azad University, Tehran, Iran
| | - Amirfarhang Miresmaeili
- grid.411950.80000 0004 0611 9280Orthodontic Department of Hamadan University of Medical Sciences and Hamadan Dental Research Centre, Hamadan, Iran
| | - Shahrokh Shojaei
- grid.411463.50000 0001 0706 2472Department of Biomedical Engineering, Central Tehran Branch, Islamic Azad University, Tehran, Iran ,grid.411463.50000 0001 0706 2472Stem Cells Research Center, Tissue Engineering and Regenerative Medicine Institute, Central Tehran Branch, Islamic Azad University, Tehran, Iran
| | - Sareh Farhadi
- grid.411463.50000 0001 0706 2472Department of Oral & Maxillofacial Pathology, Faculty of Dentistry, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Sarah Rajabi
- grid.419336.a0000 0004 0612 4397Department of Cell Engineering, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
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8
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Azaryan E, Emadian Razavi F, Hanafi-Bojd MY, Alemzadeh E, Naseri M. Dentin regeneration based on tooth tissue engineering: A review. Biotechnol Prog 2022; 39:e3319. [PMID: 36522133 DOI: 10.1002/btpr.3319] [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: 06/14/2022] [Revised: 11/22/2022] [Accepted: 12/13/2022] [Indexed: 12/23/2022]
Abstract
Missing or damaged teeth due to caries, genetic disorders, oral cancer, or infection may contribute to physical and mental impairment that reduces the quality of life. Despite major progress in dental tissue repair and those replacing missing teeth with prostheses, clinical treatments are not yet entirely satisfactory, as they do not regenerate tissues with natural teeth features. Therefore, much of the focus has centered on tissue engineering (TE) based on dental stem/progenitor cells to create bioengineered dental tissues. Many in vitro and in vivo studies have shown the use of cells in regenerating sections of a tooth or a whole tooth. Tooth tissue engineering (TTE), as a promising method for dental tissue regeneration, can form durable biological substitutes for soft and mineralized dental tissues. The cell-based TE approach, which directly seeds cells and bioactive components onto the biodegradable scaffolds, is currently the most potential method. Three essential components of this strategy are cells, scaffolds, and growth factors (GFs). This study investigates dentin regeneration after an injury such as caries using TE and stem/progenitor cell-based strategies. We begin by discussing about the biological structure of a dentin and dentinogenesis. The engineering of teeth requires knowledge of the processes that underlie the growth of an organ or tissue. Then, the three fundamental requirements for dentin regeneration, namely cell sources, GFs, and scaffolds are covered in the current study, which may ultimately lead to new insights in this field.
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Affiliation(s)
- Ehsaneh Azaryan
- Student Research Committee, Birjand University of Medical Sciences, Birjand, Iran.,Cellular and Molecular Research Center, Department of Molecular Medicine, Birjand University of Medical Sciences, Birjand, Iran
| | - Fariba Emadian Razavi
- Dental Research Center, Faculty of Dentistry, Birjand University of Medical Sciences, Birjand, Iran
| | - Mohammad Yahya Hanafi-Bojd
- Cellular and Molecular Research Center, Birjand University of Medical sciences, Birjand, Iran.,Department of Pharmaceutics and Pharmaceutical nanotechnology, School of Pharmacy, Birjand University of Medical Sciences, Birjand, Iran
| | - Esmat Alemzadeh
- Department of Medical Biotechnology, Faculty of medicine, Birjand University of Medical Sciences, Birjand, Iran.,Infectious Diseases Research Center, Birjand University of Medical Sciences, Birjand, Iran
| | - Mohsen Naseri
- Cellular and Molecular Research Center, Department of Molecular Medicine, Birjand University of Medical Sciences, Birjand, Iran
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9
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Shu C, Hou L, Chen Q, Zhu T, Yang J, Luo X, Su Y, Wang Y. Irradiation with a red light-emitting diode enhances the proliferation of stem cells of apical papilla via the ERK5 signalling pathway. Lasers Med Sci 2022; 37:2259-2268. [PMID: 35022873 DOI: 10.1007/s10103-021-03492-x] [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: 07/20/2021] [Accepted: 12/06/2021] [Indexed: 11/27/2022]
Abstract
This Querystudy aimed to investigate the effects of low-energy red light-emitting diode (LED) irradiation on the proliferation of stem cells from apical papilla (SCAPs) and preliminarily elucidated the underlying molecular mechanisms. SCAPs were isolated and identified in vitro. The light source was a 10 W red LED with continuous output and a wavelength of 600-700 nm. SCAPs were irradiated with 0 (control group), 0.5 J/cm2, 1 J/cm2, 3 J/cm2, or 5 J/cm2. Cell Counting Kit-8 (CCK-8) assays were used to analyze cell proliferation rates and determine the most effective concentration of extracellular signal-regulated kinase 5 (ERK5) blocker, BIX02189. A real-time polymerase chain reaction (RT-PCR) was carried out to determine the involvement of the ERK5 signalling pathway and proliferation-associated genes (C-Jun, Jun B, and Cyclin D1). 5-Ethynyl-2'-deoxyuridine (EDU) was used to analyze cell cycle kinetic parameters. CCK-8 assay results suggested that SCAPs in red LED groups exhibited a higher proliferation rate than those in the control group, and 10 μmol/L BIX02189 was the most effective blocker. The RT-PCR results demonstrate that red LEDs upregulated the expression of the ERK5, C-Jun, Jun B, and Cyclin D1 genes, and BIX02189 successfully blocked the ERK5 signalling pathway. The results of EdU staining indicated that red LED promoted DNA synthesis activity and that BIX02189 suppressed cells into S phase. Red LEDs irradiation enhances the proliferation of SCAPs via the ERK5 signalling pathway by upregulating the expression of C-Jun, Jun B, and Cyclin D1.
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Affiliation(s)
- Chunxia Shu
- School of Stomatology Southwest Medical University, Lu Zhou, 646000, China
- Suining First People's Hospital, Suining, 629000, China
| | - Lan Hou
- School of Stomatology Southwest Medical University, Lu Zhou, 646000, China
| | - Qiang Chen
- The TCM Hospital of Longquanyi District, Chengdu, 610100, China
| | - Tingting Zhu
- School of Stomatology of Qingdao University, Qingdao, 266003, China
| | - Juan Yang
- School of Stomatology Southwest Medical University, Lu Zhou, 646000, China
| | - Xiang Luo
- School of Stomatology Southwest Medical University, Lu Zhou, 646000, China
| | - Yutong Su
- School of Stomatology Southwest Medical University, Lu Zhou, 646000, China
| | - Yao Wang
- The Affiliated Stomatology Hospital of Southwest Medical University, Lu Zhou, 646000, China.
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10
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Touya N, Devun M, Handschin C, Casenave S, Omar NA, Gaubert A, Dusserre N, De Oliveira H, Kérourédan O, Devillard R. In vitroand in vivocharacterization of a novel tricalcium silicate-based ink for bone regeneration using laser-assisted bioprinting. Biofabrication 2022; 14. [PMID: 35203068 DOI: 10.1088/1758-5090/ac584b] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Accepted: 02/24/2022] [Indexed: 11/11/2022]
Abstract
Grafts aside, current strategies employed to overcome bone loss still fail to reproduce native tissue physiology. Among the emerging bioprinting strategies, Laser-Assisted Bioprinting (LAB) offers very high resolution, allowing designing micrometric patterns in a contactless manner, providing a reproducible tool to test ink formulation. To this date, no LAB associated ink succeeded to provide a reproducible ad integrum bone regeneration on a murine calvaria critical size defect model. Using the CE approved BioRoot RCS® as a mineral addition to a collagen-enriched ink compatible with LAB, the present study describes the process of the development of a solidifying tricalcium silicate-based ink as a new bone repair promoting substrates in a LAB model. This ink formulation was mechanically characterized by rheology to adjust it for LAB. Printed aside Stromal Cells from Apical Papilla (SCAPs), this ink demonstrated a great cytocompatibility, with significant in vitro positive impact upon cell motility, and an early osteogenic differentiation response in the absence of another stimulus. Results indicated that the in vivo application of this new ink formulation to regenerate critical size bone defect tends to promote the formation of bone volume fraction without affecting the vascularization of the neo-formed tissue. The use of LAB techniques with this ink failed to demonstrate a complete bone repair, whether SCAPs were printed or not of at its direct proximity. The relevance of the properties of this specific ink formulation would therefore rely on the quantity applied in situ as a defect filler rather than its cell modulation properties observed in vitro. For the first time, a tricalcium silicate-based printed ink, based on rheological analysis, was characterized in vitro and in vivo, giving valuable information to reach complete bone regeneration through formulation updates. This LAB-based process could be generalized to normalize the characterization of candidate ink for bone regeneration.
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Affiliation(s)
- Nicolas Touya
- University of Bordeaux, 146 rue leo saignat, Bordeaux, 33067, FRANCE
| | - Mathilde Devun
- University of Bordeaux, 146 rue leo saignat, Talence, 33405, FRANCE
| | - Charles Handschin
- Inserm U1026, Tissue Bioengineering: Bordeaux, FR, 146 rue leo saignat, Bordeaux, 33067, FRANCE
| | - Sophia Casenave
- University of Bordeaux, 146 rue leo saignat, Talence, 33405, FRANCE
| | - Naïma Ahmed Omar
- University of Bordeaux, 146 rue leo saignat, Talence, 33405, FRANCE
| | - Alexandra Gaubert
- University of Bordeaux, 146 rue leo saignat, Bordeaux, 33067, FRANCE
| | - Nathalie Dusserre
- ART Bioprint, INSERM U1026, 146 rue leo saignat, BORDEAUX, 33067, FRANCE
| | - Hugo De Oliveira
- , Université de Bordeaux, Bioingénierie tissulaire, rue Léo Saignat, 33076 Bordeaux, Bordeaux, 33067, FRANCE
| | - Olivia Kérourédan
- Bioingénierie Tissulaire, INSERM U1026, 146 rue Léo Saignat, BORDEAUX, 33067, FRANCE
| | - Raphael Devillard
- Bioingenierie tissulaire, INSERM U1026, 146 rue leo Saignat, Bordeaux, 33067, FRANCE
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11
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Oral Cavity as a Source of Mesenchymal Stem Cells Useful for Regenerative Medicine in Dentistry. Biomedicines 2021; 9:biomedicines9091085. [PMID: 34572271 PMCID: PMC8469189 DOI: 10.3390/biomedicines9091085] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 08/19/2021] [Accepted: 08/23/2021] [Indexed: 12/17/2022] Open
Abstract
The use of mesenchymal stem cells (MSCs) for regenerative purposes has become common in a large variety of diseases. In the dental and maxillofacial field, there are emerging clinical needs that could benefit from MSC-based therapeutic approaches. Even though MSCs can be isolated from different tissues, such as bone marrow, adipose tissue, etc., and are known for their multilineage differentiation, their different anatomical origin can affect the capability to differentiate into a specific tissue. For instance, MSCs isolated from the oral cavity might be more effective than adipose-derived stem cells (ASCs) for the treatment of dental defects. Indeed, in the oral cavity, there are different sources of MSCs that have been individually proposed as promising candidates for tissue engineering protocols. The therapeutic strategy based on MSCs can be direct, by using cells as components of the tissue to be regenerated, or indirect, aimed at delivering local growth factors, cytokines, and chemokines produced by the MSCs. Here, the authors outline the major sources of mesenchymal stem cells attainable from the oral cavity and discuss their possible usage in some of the most compelling therapeutic frontiers, such as periodontal disease and dental pulp regeneration.
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Shang L, Shao J, Ge S. Immunomodulatory functions of oral mesenchymal stem cells: Novel force for tissue regeneration and disease therapy. J Leukoc Biol 2021; 110:539-552. [PMID: 34184321 DOI: 10.1002/jlb.3mr0321-766r] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Indexed: 12/16/2022] Open
Abstract
Mesenchymal stem cells (MSCs)-based therapeutic strategies have achieved remarkable efficacies. Oral tissue-derived MSCs, with powerful self-renewal and multilineage differentiation abilities, possess the features of abundant sources and easy accessibility and hold great potential in tissue regeneration and disease therapies. Oral MSCs mainly consist of periodontal ligament stem cells, gingival mesenchymal stem cells, dental pulp stem cells, stem cells from human exfoliated deciduous teeth, stem cells from the apical papilla, dental follicle stem cells, and alveolar bone-derived mesenchymal stem. Early immunoinflammatory response stage is the prerequisite phase of healing process. Besides the potent capacities of differentiation and regeneration, oral MSCs are capable of interacting with various immune cells and function as immunomodulatory regulators. Consequently, the immunomodulatory effects of oral MSCs during damage repair seem to be crucial for exploring novel immunomodulatory strategies to achieve disease recovery and tissue regeneration. Herein, we reviewed various oral MSCs with their immunomodulatory properties and the potential mechanism, as well as their effects on immunomodulation-mediated disease therapies and tissue regeneration.
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Affiliation(s)
- Lingling Shang
- Department of Periodontology, School and Hospital of Stomatology, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, Shandong, China
| | - Jinlong Shao
- Department of Periodontology, School and Hospital of Stomatology, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, Shandong, China
| | - Shaohua Ge
- Department of Periodontology, School and Hospital of Stomatology, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, Shandong, China
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Multipotent stem cells from apical pulp of human deciduous teeth with immature apex. Tissue Cell 2021; 71:101556. [PMID: 34082260 DOI: 10.1016/j.tice.2021.101556] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 05/08/2021] [Accepted: 05/09/2021] [Indexed: 01/09/2023]
Abstract
Isolation of high-quality human postnatal stem cells from accessible sources is an important goal for dental tissue engineering. Stem cells from developing organs are a better cell source but are hard to obtain. With extensive caries that are difficult to restore, the extracted deciduous tooth with an immature apex is a developing organ for investigation. In the present study, a cell population from the tip of apical pulp of human deciduous teeth with an immature apex was isolated and termed apical pulp-derived cells of deciduous teeth (De-APDCs). De-APDCs expressed STRO-1, CD44, CD90 and CD105 but not CD34 or CD45. Furthermore, De-APDCs demonstrated a significantly higher clonogenic and proliferative ability and osteo/dentinogenic differentiation capacity than dental pulp cells from exfoliated deciduous teeth (De-DPCs) (P < 0.05). Differentiation potential toward adipogenic, neurogenic and chondrogenic lineages was also observed in induced De-APDCs. In addition, after De-APDCs were seeded into hydroxyapatite/tricalcium phosphate (HA/TCP) scaffolds and transplanted into nude mice, they were able to regenerate dentin/pulp-like structures aligned with human odontoblast-like cells. In conclusion, De-APDCs, which are derived from a developing tissue, represent an accessible and prospective cell source for tooth regeneration.
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Angiogenesis in Regenerative Dentistry: Are We Far Enough for Therapy? Int J Mol Sci 2021; 22:ijms22020929. [PMID: 33477745 PMCID: PMC7832295 DOI: 10.3390/ijms22020929] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2020] [Revised: 01/14/2021] [Accepted: 01/15/2021] [Indexed: 12/14/2022] Open
Abstract
Angiogenesis is a broad spread term of high interest in regenerative medicine and tissue engineering including the dental field. In the last two decades, researchers worldwide struggled to find the best ways to accelerate healing, stimulate soft, and hard tissue remodeling. Stem cells, growth factors, pathways, signals, receptors, genetics are just a few words that describe this area in medicine. Dental implants, bone and soft tissue regeneration using autologous grafts, or xenografts, allografts, their integration and acceptance rely on their material properties. However, the host response, through its vascularization, plays a significant role. The present paper aims to analyze and organize the latest information about the available dental stem cells, the types of growth factors with pro-angiogenic effect and the possible therapeutic effect of enhanced angiogenesis in regenerative dentistry.
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Dental Tissue-Derived Human Mesenchymal Stem Cells and Their Potential in Therapeutic Application. Stem Cells Int 2020; 2020:8864572. [PMID: 32952572 PMCID: PMC7482010 DOI: 10.1155/2020/8864572] [Citation(s) in RCA: 69] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Accepted: 07/15/2020] [Indexed: 02/05/2023] Open
Abstract
Human mesenchymal stem cells (hMSCs) are multipotent cells, which exhibit plastic adherence, express specific cell surface marker spectrum, and have multi-lineage differentiation potential. These cells can be obtained from multiple tissues. Dental tissue-derived hMSCs (dental MSCs) possess the ability to give rise to mesodermal lineage (osteocytes, adipocytes, and chondrocytes), ectodermal lineage (neurocytes), and endodermal lineages (hepatocytes). Dental MSCs were first isolated from dental pulp of the extracted third molar and till now they have been purified from various dental tissues, including pulp tissue of permanent teeth and exfoliated deciduous teeth, apical papilla, periodontal ligament, gingiva, dental follicle, tooth germ, and alveolar bone. Dental MSCs are not only easily accessible but are also expandable in vitro with relative genomic stability for a long period of time. Moreover, dental MSCs have exhibited immunomodulatory properties by secreting cytokines. Easy accessibility, multi-lineage differentiation potential, and immunomodulatory effects make dental MSCs distinct from the other hMSCs and an effective tool in stem cell-based therapy. Several preclinical studies and clinical trials have been performed using dental MSCs in the treatment of multiple ailments, ranging from dental diseases to nondental diseases. The present review has summarized dental MSC sources, multi-lineage differentiation capacities, immunomodulatory features, its potential in the treatment of diseases, and its application in both preclinical studies and clinical trials. The regenerative therapeutic strategies in dental medicine have also been discussed.
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Yang H, Liang Y, Cao Y, Cao Y, Fan Z. Homeobox C8 inhibited the osteo-/dentinogenic differentiation and migration ability of stem cells of the apical papilla via activating KDM1A. J Cell Physiol 2020; 235:8432-8445. [PMID: 32246725 DOI: 10.1002/jcp.29687] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Revised: 03/18/2020] [Accepted: 03/23/2020] [Indexed: 12/13/2022]
Abstract
Enhancing the functions of mesenchymal stem cells (MSCs) is considered a potential approach for promoting tissue regeneration. In the present study, we investigate the role of HOXC8 in regulating differentiation and migration by using stem cells of the apical papilla (SCAPs). Our results showed that overexpression of HOXC8 suppressed the osteo-/dentinogenic differentiation, as detected by measuring alkaline phosphatase activity, in vitro mineralization, and the expressions of dentin sialophosphoprotein, dentin matrix acidic phosphoprotein 1, bone sialoprotein, runt-related transcription factor 2, and osterix in SCAPs, and inhibited in vivo osteo-/dentinogenesis of SCAPs. In addition, knockdown of HOXC8 promoted the osteo-/dentinogenic differentiation potentials of SCAPs. Mechanically, HOXC8 enhanced KDM1A transcription by directly binding to its promoter. HOXC8 and KDM1A also inhibited the migration and chemotaxis abilities of SCAPs. To sum up, HOXC8 negatively regulated the osteo-/dentinogenic differentiation and migration abilities of SCAPs by directly enhancing KDM1A transcription and indicated that HOXC8 and KDM1A could serve as potential targets for enhancing dental MSC mediated tissue regeneration.
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Affiliation(s)
- Haoqing Yang
- Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology, Beijing Stomatology Hospital, Capital Medical University, Beijing, China
| | - Yuncun Liang
- Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology, Beijing Stomatology Hospital, Capital Medical University, Beijing, China
| | - Yangyang Cao
- Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology, Beijing Stomatology Hospital, Capital Medical University, Beijing, China
| | - Yu Cao
- Department of General Dentistry, School of Stomatology, Beijing Stomatology Hospital, Capital Medical University, Beijing, China
| | - Zhipeng Fan
- Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology, Beijing Stomatology Hospital, Capital Medical University, Beijing, China
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17
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Yang H, Li G, Han N, Zhang X, Cao Y, Cao Y, Fan Z. Secreted frizzled-related protein 2 promotes the osteo/odontogenic differentiation and paracrine potentials of stem cells from apical papilla under inflammation and hypoxia conditions. Cell Prolif 2019; 53:e12694. [PMID: 31568642 PMCID: PMC6985663 DOI: 10.1111/cpr.12694] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Revised: 07/31/2019] [Accepted: 08/17/2019] [Indexed: 12/15/2022] Open
Abstract
Objectives Mesenchymal stem cell (MSC)‐based dental tissue regeneration is a potential treatment method in future, while inflammation and hypoxia niche will affect MSC‐mediated tissue regeneration. In this research, we intended to investigate the influence and mechanism of secreted frizzled‐related protein 2(SFRP2) on MSC function under inflammation and hypoxia conditions. Material and methods Stem cells from apical papilla (SCAPs) were used in this study. The alkaline phosphatase (ALP) activity, Alizarin Red S staining, scratch‐simulated wound migration and transwell chemotaxis assay were used to evaluate the functions of SFRP2. The Western blot, real‐time RT‐PCR and ChIP assays were used to evaluate the mechanism of SFRP2. Results Under inflammation and hypoxia conditions, the over‐expression of SFRP2 could enhance the osteo/odontogenic differentiation ability. Mechanismly, SFRP2 inhibited canonical Wnt/β‐catenin signalling pathway and then inhibited the target genes of nuclear factor kappa B (NFkB) signalling pathway. Inflammation or hypoxia conditions could promote the expression of lysine demethylase 2A (KDM2A) and repress SFRP2 transcription through decreasing histone methylation in the SFRP2 promoter. Besides, proteomic analysis showed that SFRP2 promoted SCAPs to secret more functional cytokines, which improve the migration, chemotaxis and osteo/odontogenic ability of MSCs. Conclusions Our discoveries revealed that SFRP2 enhanced the osteo/odontogenic differentiation and paracrine potentials of SCAPs under hypoxia and inflammation conditions and provided a potential cytokine for promoting tissue regeneration in hypoxia and inflammatory niche.
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Affiliation(s)
- Haoqing Yang
- Laboratory of Molecular Signaling and Stem Cells Therapy, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, China
| | - Guoqing Li
- Laboratory of Molecular Signaling and Stem Cells Therapy, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, China.,Molecular Laboratory for Gene Therapy and Tooth Regeneration, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, China
| | - Nannan Han
- Department of Periodontology, Capital Medical University School of Stomatology, Beijing, China
| | - Xiuli Zhang
- Laboratory of Molecular Signaling and Stem Cells Therapy, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, China.,Department of Periodontology, Capital Medical University School of Stomatology, Beijing, China
| | - Yangyang Cao
- Laboratory of Molecular Signaling and Stem Cells Therapy, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, China
| | - Yu Cao
- Department of General Dentistry, Capital Medical University School of Stomatology, Beijing, China
| | - Zhipeng Fan
- Laboratory of Molecular Signaling and Stem Cells Therapy, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, China
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Li G, Han N, Yang H, Zhang X, Cao Y, Cao Y, Shi R, Wang S, Fan Z. SFRP2 promotes stem cells from apical papilla‐mediated periodontal tissue regeneration in miniature pig. J Oral Rehabil 2019; 47 Suppl 1:12-18. [PMID: 31469431 DOI: 10.1111/joor.12882] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 08/23/2019] [Accepted: 08/25/2019] [Indexed: 12/15/2022]
Affiliation(s)
- Guoqing Li
- Laboratory of Molecular Signaling and Stem Cells Therapy Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction School of Stomatology Beijing Stomatological Hospital Capital Medical University Beijing China
- Molecular Laboratory for Gene Therapy and Tooth Regeneration Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction School of Stomatology Capital Medical University Beijing China
| | - Nannan Han
- Laboratory of Molecular Signaling and Stem Cells Therapy Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction School of Stomatology Beijing Stomatological Hospital Capital Medical University Beijing China
- Department of Periodontology School of Stomatology Beijing Stomatological Hospital Capital Medical University Beijing China
| | - Haoqing Yang
- Laboratory of Molecular Signaling and Stem Cells Therapy Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction School of Stomatology Beijing Stomatological Hospital Capital Medical University Beijing China
| | - Xiuli Zhang
- Laboratory of Molecular Signaling and Stem Cells Therapy Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction School of Stomatology Beijing Stomatological Hospital Capital Medical University Beijing China
- Department of Periodontology School of Stomatology Beijing Stomatological Hospital Capital Medical University Beijing China
| | - Yangyang Cao
- Laboratory of Molecular Signaling and Stem Cells Therapy Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction School of Stomatology Beijing Stomatological Hospital Capital Medical University Beijing China
| | - Yu Cao
- Department of General Dentistry School of Stomatology Beijing Stomatological Hospital Capital Medical University Beijing China
| | - Ruitang Shi
- Department of Endodontics School of Stomatology Beijing Stomatological Hospital Capital Medical University Beijing China
| | - Songlin Wang
- Molecular Laboratory for Gene Therapy and Tooth Regeneration Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction School of Stomatology Capital Medical University Beijing China
- Department of Biochemistry and Molecular Biology Capital Medical University School of Basic Medical Sciences Beijing China
| | - Zhipeng Fan
- Laboratory of Molecular Signaling and Stem Cells Therapy Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction School of Stomatology Beijing Stomatological Hospital Capital Medical University Beijing China
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Li Z, Ge X, Lu J, Bian M, Li N, Wu X, Li Y, Yan M, Yu J. MiR-141-3p regulates proliferation and senescence of stem cells from apical papilla by targeting YAP. Exp Cell Res 2019; 383:111562. [PMID: 31437458 DOI: 10.1016/j.yexcr.2019.111562] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Revised: 08/14/2019] [Accepted: 08/17/2019] [Indexed: 01/14/2023]
Abstract
Biological phenotypes of mesenchymal stem cells (MSCs) are regulated by a series of biochemical elements, including microRNAs, hormones and growth factors. Our previous study illustrated a significant role of miR-141-3p during the osteogenic differentiation of stem cells from apical papilla (SCAPs). Nevertheless, the functions of miR-141-3p in regulating the proliferative ability and senescence of SCAPs have not been determined. This study identified that overexpression of miR-141-3p inhibited the proliferative ability of SCAPs. Meanwhile, the senescence of SCAPs was ahead of time. Conversely, transfection of miR-141-3p inhibitor promoted the proliferative ability of SCAPs and delayed their senescence. Yes-associated protein (YAP) was predicted as the downstream target gene of miR-141-3p by online softwares (miRDB, miRTarBase, miRWalk, and TargetScan), and was further verified by dual-luciferase reporter gene assay. Additionally, knockdown of YAP inhibited the proliferation and accelerated the senescence of SCAPs. Collectively, these findings proposed a novel direction that miR-141-3p impeded proliferative ability and promoted senescence of SCAPs through post-transcriptionally downregulating YAP.
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Affiliation(s)
- Zehan Li
- Key Laboratory of Oral Diseases of Jiangsu Province and Stomatological Institute of Nanjing Medical University, 140 Hanzhong Road, Nanjing, Jiangsu, 210029, China; Endodontic Department, School of Stomatology, Nanjing Medical University, 136 Hanzhong Road, Nanjing, Jiangsu, 210029, China
| | - Xingyun Ge
- Key Laboratory of Oral Diseases of Jiangsu Province and Stomatological Institute of Nanjing Medical University, 140 Hanzhong Road, Nanjing, Jiangsu, 210029, China; Endodontic Department, School of Stomatology, Nanjing Medical University, 136 Hanzhong Road, Nanjing, Jiangsu, 210029, China
| | - Jiamin Lu
- Key Laboratory of Oral Diseases of Jiangsu Province and Stomatological Institute of Nanjing Medical University, 140 Hanzhong Road, Nanjing, Jiangsu, 210029, China; Endodontic Department, School of Stomatology, Nanjing Medical University, 136 Hanzhong Road, Nanjing, Jiangsu, 210029, China
| | - Minxia Bian
- Key Laboratory of Oral Diseases of Jiangsu Province and Stomatological Institute of Nanjing Medical University, 140 Hanzhong Road, Nanjing, Jiangsu, 210029, China; Endodontic Department, School of Stomatology, Nanjing Medical University, 136 Hanzhong Road, Nanjing, Jiangsu, 210029, China
| | - Na Li
- Key Laboratory of Oral Diseases of Jiangsu Province and Stomatological Institute of Nanjing Medical University, 140 Hanzhong Road, Nanjing, Jiangsu, 210029, China; Endodontic Department, School of Stomatology, Nanjing Medical University, 136 Hanzhong Road, Nanjing, Jiangsu, 210029, China
| | - Xiao Wu
- Key Laboratory of Oral Diseases of Jiangsu Province and Stomatological Institute of Nanjing Medical University, 140 Hanzhong Road, Nanjing, Jiangsu, 210029, China; Endodontic Department, School of Stomatology, Nanjing Medical University, 136 Hanzhong Road, Nanjing, Jiangsu, 210029, China
| | - Yuzhi Li
- Key Laboratory of Oral Diseases of Jiangsu Province and Stomatological Institute of Nanjing Medical University, 140 Hanzhong Road, Nanjing, Jiangsu, 210029, China; Endodontic Department, School of Stomatology, Nanjing Medical University, 136 Hanzhong Road, Nanjing, Jiangsu, 210029, China
| | - Ming Yan
- Key Laboratory of Oral Diseases of Jiangsu Province and Stomatological Institute of Nanjing Medical University, 140 Hanzhong Road, Nanjing, Jiangsu, 210029, China; Endodontic Department, School of Stomatology, Nanjing Medical University, 136 Hanzhong Road, Nanjing, Jiangsu, 210029, China.
| | - Jinhua Yu
- Endodontic Department, School of Stomatology, Nanjing Medical University, 136 Hanzhong Road, Nanjing, Jiangsu, 210029, China.
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Xiong H, Chen K. Comparative analysis of transcriptomes between apical pulp‐derived cells from deciduous teeth and permanent teeth or dental pulp cells from exfoliated deciduous teeth. J Gene Med 2019; 21:e3098. [DOI: 10.1002/jgm.3098] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Revised: 04/29/2019] [Accepted: 05/03/2019] [Indexed: 01/06/2023] Open
Affiliation(s)
- Hua‐cui Xiong
- Stomatological HospitalSouthern Medical University Guangzhou China
- Department of StomatologyGuangzhou Women and Children's Medical Center Guangzhou China
| | - Ke Chen
- Stomatological HospitalSouthern Medical University Guangzhou China
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21
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Stem Cells from the Apical Papilla: A Promising Source for Stem Cell-Based Therapy. BIOMED RESEARCH INTERNATIONAL 2019; 2019:6104738. [PMID: 30834270 PMCID: PMC6374798 DOI: 10.1155/2019/6104738] [Citation(s) in RCA: 87] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Accepted: 01/15/2019] [Indexed: 12/17/2022]
Abstract
Stem cells are biological cells that can self-renew and can differentiate into multiple cell lineages. Stem cell-based therapy is emerging as a promising alternative therapeutic option for various disorders. Mesenchymal stem cells (MSCs) are multipotent adult stem cells that are isolated from various tissues and can be used as an alternative to embryonic stem cells. Stem cells from the apical papilla (SCAPs) are a novel population of MSCs residing in the apical papilla of immature permanent teeth. SCAPs present the characteristics of expression of MSCs markers, self-renewal, proliferation, migration, differentiation, and immunosuppression, which support the application of SCAPs in stem cell-based therapy, including the immunotherapy and the regeneration of dental tissues, bone, neural, and vascular tissues. In view of these properties and therapeutic potential, SCAPs can be considered as promising candidates for stem cell-based therapy. Thus the aim of our review was to summarize the current knowledge of SCAPs considering isolation, characterization, and multilineage differentiation. The prospects for their use in stem cell-based therapy were also discussed.
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Lin X, Yang H, Wang L, Li W, Diao S, Du J, Wang S, Dong R, Li J, Fan Z. AP2a enhanced the osteogenic differentiation of mesenchymal stem cells by inhibiting the formation of YAP/RUNX2 complex and BARX1 transcription. Cell Prolif 2018; 52:e12522. [PMID: 30443989 PMCID: PMC6430486 DOI: 10.1111/cpr.12522] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Revised: 07/23/2018] [Accepted: 07/27/2018] [Indexed: 12/11/2022] Open
Abstract
Objectives Bone regeneration by bone tissue engineering is a therapeutic option for bone defects. Improving the osteogenic differentiation of mesenchymal stem cells (MSCs) is essential for successful bone regeneration. We previously showed that AP2a enhances the osteogenic differentiation in MSCs. The present study investigated the mechanism of how AP2a regulates the direct differentiation. Materials and methods Co‐immunoprecipitation and ChIP assays were carried out to investigate the underlying mechanism in MSCs differentiation. The osteogenic differentiation potential was determined by mineralization ability and the expression of osteogenic marker in vitro and the in vivo bone‐like tissue generation in nude mice. Results We show that AP2a can compete with RUNX2, a key transcription factor in osteogenic differentiation, to recruit YAP and release the inhibition of RUNX2 activity from YAP by forming YAP‐AP2a protein complex. YAP‐AP2a protein complex also interacts with the BARX1 promoter through AP2a, inhibit the transcription of BARX1. Moreover, BARX1 inhibits osteogenic differentiation of MSCs. Conclusions Our discoveries revealed that AP2a may regulate the osteogenic differentiation in an indirect way through competing with RUNX2 to relieve the RUNX2 activity which inhibited by YAP, and also in a direct way via targeting the BARX1 and directly repressed its transcription. Thus, our discoveries shed new light on the mechanism of direct differentiation of MSCs and provide candidate targets for improving the osteogenic differentiation and enhancing bone tissue regeneration.
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Affiliation(s)
- Xiao Lin
- Laboratory of Molecular Signaling and Stem Cells Therapy, Beijing Key Laboratory for Tooth Regeneration and Function Reconstruction of Oral Tissues, Capital Medical University School of Stomatology, Beijing, China.,Department of Implant Dentistry, Capital Medical University School of Stomatology, Beijing, China
| | - Haoqing Yang
- Laboratory of Molecular Signaling and Stem Cells Therapy, Beijing Key Laboratory for Tooth Regeneration and Function Reconstruction of Oral Tissues, Capital Medical University School of Stomatology, Beijing, China
| | - Lijun Wang
- Laboratory of Molecular Signaling and Stem Cells Therapy, Beijing Key Laboratory for Tooth Regeneration and Function Reconstruction of Oral Tissues, Capital Medical University School of Stomatology, Beijing, China.,Department of Endodontics, Capital Medical University School of Stomatology, Beijing, China
| | - Wenzhi Li
- Laboratory of Molecular Signaling and Stem Cells Therapy, Beijing Key Laboratory for Tooth Regeneration and Function Reconstruction of Oral Tissues, Capital Medical University School of Stomatology, Beijing, China.,Department of Endodontics, Capital Medical University School of Stomatology, Beijing, China
| | - Shu Diao
- Laboratory of Molecular Signaling and Stem Cells Therapy, Beijing Key Laboratory for Tooth Regeneration and Function Reconstruction of Oral Tissues, Capital Medical University School of Stomatology, Beijing, China.,Department of Pediatrics, Capital Medical University School of Stomatology, Beijing, China
| | - Juan Du
- Laboratory of Molecular Signaling and Stem Cells Therapy, Beijing Key Laboratory for Tooth Regeneration and Function Reconstruction of Oral Tissues, Capital Medical University School of Stomatology, Beijing, China.,Molecular Laboratory for Gene Therapy and Tooth Regeneration, Beijing Key Laboratory for Tooth Regeneration and Function Reconstruction of Oral Tissues, Capital Medical University School of Stomatology, Beijing, China
| | - Songlin Wang
- Molecular Laboratory for Gene Therapy and Tooth Regeneration, Beijing Key Laboratory for Tooth Regeneration and Function Reconstruction of Oral Tissues, Capital Medical University School of Stomatology, Beijing, China.,Department of Biochemistry and Molecular Biology, Capital Medical University School of Basic Medical Sciences, Beijing, China
| | - Rui Dong
- Laboratory of Molecular Signaling and Stem Cells Therapy, Beijing Key Laboratory for Tooth Regeneration and Function Reconstruction of Oral Tissues, Capital Medical University School of Stomatology, Beijing, China
| | - Jun Li
- Department of Implant Dentistry, Capital Medical University School of Stomatology, Beijing, China
| | - Zhipeng Fan
- Laboratory of Molecular Signaling and Stem Cells Therapy, Beijing Key Laboratory for Tooth Regeneration and Function Reconstruction of Oral Tissues, Capital Medical University School of Stomatology, Beijing, China
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23
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Li G, Han N, Zhang X, Yang H, Cao Y, Wang S, Fan Z. Local Injection of Allogeneic Stem Cells from Apical Papilla Enhanced Periodontal Tissue Regeneration in Minipig Model of Periodontitis. BIOMED RESEARCH INTERNATIONAL 2018; 2018:3960798. [PMID: 30112386 PMCID: PMC6077668 DOI: 10.1155/2018/3960798] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/02/2018] [Revised: 06/03/2018] [Accepted: 06/21/2018] [Indexed: 12/14/2022]
Abstract
BACKGROUND Discovering suitable seeding cells and simple application technique will be beneficial for MSC-mediated treatment of periodontitis. Stem cells from apical papilla (SCAPs) might be the candidate seeding cell for the periodontal tissues regeneration based on their origin and characters. In this research, we investigated the effect of SCAPs on periodontal tissue regeneration in swine by local injection. METHODS We established experimental periodontitis model in miniature pigs and then treated them with SCAPs by local injection. Clinical assessments, computed tomography (CT) scanning, histologic examination, and quantitative measurements were used to evaluate the effect of periodontal tissues regeneration. RESULTS At 12 weeks after injection, clinical assessments showed that probing depth, gingival recession, and attachment loss values were 5.44±0.77 mm versus 7.33±1.0 mm (p<0.01), 2.33±0.33 mm versus 2.11±0.69 mm (p>0.05), and 7.78±0.84 mm versus 9.44±1.07 mm (p<0.01) in SCAPs group and 0.9% NaCl group, respectively. CT scan results showed a significant increase of 12.86 mm3 alveolar bone regeneration in SCAPs group compared with 0.9% NaCl group. In addition, histopathology results demonstrated remarkable regeneration in SCAPs group, whereas regeneration of periodontal tissue was hardly found in 0.9% NaCl group. CONCLUSION Local injection of SCAPs could effectively restore tissue defects brought about by periodontitis in the swine model. Thus, SCAPs, as an easily accessible dental-deriving stem cell, may serve as an alternative application for periodontitis treatment.
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Affiliation(s)
- Guoqing Li
- Laboratory of Molecular Signaling and Stem Cells Therapy, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, No. 4 Tiantanxili, Dongcheng District, Beijing 100050, China
- Molecular Laboratory for Gene Therapy and Tooth Regeneration, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing 100050, China
| | - Nannan Han
- Laboratory of Molecular Signaling and Stem Cells Therapy, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, No. 4 Tiantanxili, Dongcheng District, Beijing 100050, China
- Department of Periodontology, Capital Medical University School of Stomatology, Beijing 100050, China
| | - Xiuli Zhang
- Laboratory of Molecular Signaling and Stem Cells Therapy, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, No. 4 Tiantanxili, Dongcheng District, Beijing 100050, China
- Department of Periodontology, Capital Medical University School of Stomatology, Beijing 100050, China
| | - Haoqing Yang
- Laboratory of Molecular Signaling and Stem Cells Therapy, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, No. 4 Tiantanxili, Dongcheng District, Beijing 100050, China
| | - Yangyang Cao
- Laboratory of Molecular Signaling and Stem Cells Therapy, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, No. 4 Tiantanxili, Dongcheng District, Beijing 100050, China
| | - Songlin Wang
- Molecular Laboratory for Gene Therapy and Tooth Regeneration, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing 100050, China
- Department of Biochemistry and Molecular Biology, Capital Medical University School of Basic Medical Sciences, No.10 Xitoutiao Youanmen, Fengtai District, Beijing 100069, China
| | - Zhipeng Fan
- Laboratory of Molecular Signaling and Stem Cells Therapy, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, No. 4 Tiantanxili, Dongcheng District, Beijing 100050, China
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Conde MCM, Chisini LA, Sarkis-Onofre R, Schuch HS, Nör JE, Demarco FF. A scoping review of root canal revascularization: relevant aspects for clinical success and tissue formation. Int Endod J 2016; 50:860-874. [DOI: 10.1111/iej.12711] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2016] [Accepted: 10/19/2016] [Indexed: 12/11/2022]
Affiliation(s)
- M. C. M. Conde
- Post-Graduate Program in Dentistry; School of Dentistry; Federal University of Pelotas; Pelotas Brazil
| | - L. A. Chisini
- Post-Graduate Program in Dentistry; School of Dentistry; Federal University of Pelotas; Pelotas Brazil
| | - R. Sarkis-Onofre
- Post-Graduate Program in Dentistry; School of Dentistry; Federal University of Pelotas; Pelotas Brazil
| | - H. S. Schuch
- Australian Research Centre for Population Oral Health (ARCPOH); School of Dentistry; The University of Adelaide; Adelaide Australia
| | - J. E. Nör
- Department of Cariology, Restorative Sciences and Endodontics; School of Dentistry; University of Michigan; Ann Arbor MI USA
| | - F. F. Demarco
- Post-Graduate Program in Dentistry; School of Dentistry; Federal University of Pelotas; Pelotas Brazil
- Post-Graduate Program in Epidemiology; Federal University of Pelotas; Pelotas Brazil
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Zhang W, Zhang X, Ling J, Wei X, Jian Y. Osteo-/odontogenic differentiation of BMP2 and VEGF gene-co-transfected human stem cells from apical papilla. Mol Med Rep 2016; 13:3747-54. [PMID: 26986020 PMCID: PMC4838134 DOI: 10.3892/mmr.2016.4993] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2015] [Accepted: 02/04/2016] [Indexed: 12/13/2022] Open
Abstract
Stem cells from apical papilla (SCAP) possess clear osteo-/odontogenic differentiation capabilities, and are regarded as the major cellular source for root dentin development. Bone morphogenetic protein 2 (BMP2) and vascular endothelial growth factor (VEGF) serve pivotal roles in the modulation of tooth development and dentin formation. However, the synergistic effects of BMP2 and VEGF on osteo-/odontogenic differentiation of SCAP remain unclear. The current study aimed to investigate the proliferative and osteo-/odontogenic differentiating capabilities of BMP2 and VEGF gene-co-transfected SCAP (SCAP-BMP2-VEGF) in vitro. The basic characteristics of the isolated SCAP were identified by the induction of multipotent differentiation and by flow cytometry. Lentiviral vector-mediated gene transfection was conducted with SCAP in order to construct blank vector-transfected SCAP (SCAP-green fluorescent protein), BMP2 gene-transfected SCAP (SCAP-BMP2), VEGF gene-transfected SCAP (SCAP-VEGF) and SCAP-BMP2-VEGF. The Cell Counting Kit 8 assay was used to analyze the proliferative capacities of the four groups of cells. The expression of osteo-/odontogenic genes and proteins in the cells were evaluated by reverse transcription-quantitative polymerase chain reaction and western blotting. The mineralized nodules formed by the four group cells were visualized by alkaline phosphatase (ALP) staining. Among the four groups of cells, SCAP-VEGF was demonstrated to exhibit increased proliferation, and SCAP-BMP2-VEGF exhibited reduced proliferation during eight days observation. SCAP-BMP2-VEGF exhibited significantly increased expression levels of ALP, osteocalcin, dentin sialophosphoprotein, dentin matrix acidic phosphoprotein gene 1 and dentin sialoprotein than the other three groups at the majority of the time points. Furthermore, the SCAP-BMP2-VEGF group exhibited a significantly greater number of ALP-positive mineralized nodules than the other groups following 16 days culture in vitro. In conclusion, lentiviral vector-mediated BMP2 and VEGF gene co-transfection significantly activated the osteo-/odontogenic differentiation of human SCAP.
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Affiliation(s)
- Wen Zhang
- Guangdong Key Laboratory of Stomatology, Department of Operative Dentistry and Endodontics, Guanghua School and Hospital of Stomatology, Sun Yat‑sen University, Guangzhou, Guangdong 510055, P.R. China
| | - Xiaolei Zhang
- Guangdong Key Laboratory of Stomatology, Department of Operative Dentistry and Endodontics, Guanghua School and Hospital of Stomatology, Sun Yat‑sen University, Guangzhou, Guangdong 510055, P.R. China
| | - Junqi Ling
- Guangdong Key Laboratory of Stomatology, Department of Operative Dentistry and Endodontics, Guanghua School and Hospital of Stomatology, Sun Yat‑sen University, Guangzhou, Guangdong 510055, P.R. China
| | - Xi Wei
- Guangdong Key Laboratory of Stomatology, Department of Operative Dentistry and Endodontics, Guanghua School and Hospital of Stomatology, Sun Yat‑sen University, Guangzhou, Guangdong 510055, P.R. China
| | - Yutao Jian
- Guangdong Key Laboratory of Stomatology, Department of Operative Dentistry and Endodontics, Guanghua School and Hospital of Stomatology, Sun Yat‑sen University, Guangzhou, Guangdong 510055, P.R. China
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Devillard R, Rémy M, Kalisky J, Bourget JM, Kérourédan O, Siadous R, Bareille R, Amédée-Vilamitjana J, Chassande O, Fricain JC. In vitroassessment of a collagen/alginate composite scaffold for regenerative endodontics. Int Endod J 2016; 50:48-57. [DOI: 10.1111/iej.12591] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2015] [Accepted: 11/30/2015] [Indexed: 01/08/2023]
Affiliation(s)
- R. Devillard
- Bioingénierie Tissulaire; University Bordeaux; Bordeaux France
- Bioingénierie Tissulaire; INSERM; Bordeaux France
- Service d'Odontologie et de Santé Buccale; CHU de Bordeaux; Bordeaux France
| | - M. Rémy
- Bioingénierie Tissulaire; University Bordeaux; Bordeaux France
- Bioingénierie Tissulaire; INSERM; Bordeaux France
| | - J. Kalisky
- Bioingénierie Tissulaire; University Bordeaux; Bordeaux France
- Bioingénierie Tissulaire; INSERM; Bordeaux France
| | | | - O. Kérourédan
- Bioingénierie Tissulaire; University Bordeaux; Bordeaux France
- Bioingénierie Tissulaire; INSERM; Bordeaux France
- Service d'Odontologie et de Santé Buccale; CHU de Bordeaux; Bordeaux France
| | - R. Siadous
- Bioingénierie Tissulaire; INSERM; Bordeaux France
| | - R. Bareille
- Bioingénierie Tissulaire; INSERM; Bordeaux France
| | | | - O. Chassande
- Bioingénierie Tissulaire; University Bordeaux; Bordeaux France
- Bioingénierie Tissulaire; INSERM; Bordeaux France
| | - J.-C. Fricain
- Bioingénierie Tissulaire; University Bordeaux; Bordeaux France
- Bioingénierie Tissulaire; INSERM; Bordeaux France
- Service d'Odontologie et de Santé Buccale; CHU de Bordeaux; Bordeaux France
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S100A4 upregulation suppresses tissue ossification and enhances matrix degradation in experimental periodontitis models. Acta Pharmacol Sin 2015; 36:1388-94. [PMID: 26499072 DOI: 10.1038/aps.2015.77] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2015] [Accepted: 07/31/2015] [Indexed: 01/09/2023] Open
Abstract
AIM S100A4, also known as fibroblast-specific protein 1 or metastasin 1, is not only highly expressed in growth-stimulated cultured cells and metastatic tumor cells, but also in the periodontal ligament. The aim of this study was to investigate the roles of S100A4 in the pathogenesis of periodontitis and its regulatory mechanisms in inflammatory milieu. METHODS Experimental periodontitis was induced in rats by submarginal silk ligatures. TRAP activity and S100A4 expression in periodontal ligaments were examined using immunohistochemistry and immunofluorescence methods. IL-1β-treated human periodontal ligament cells (hPDLCs) were used as in vitro model of experimental periodontitis. S100A4 mRNA and protein were assessed using qRT-PCR and Western blot, respectively. hPDLCs were transfected with either S100A4 overexpression plasmids or shRNAs plasmids. The mineralization in hPDLCs was evaluated with a 12-d osteogenic induction assay, and the expression of ALP, OCN, MMP-2 and MMP-13 was analyzed by qRT-PCR. RESULTS In the periodontal ligaments of rats with experimental periodontitis, TRAP activity and S100A4 protein staining were considerably more intense compared with those in the control rats. Treatment of hPDLCs with IL-1β (10, 50 and 100 ng/mL) dose-dependently increased the mRNA and protein levels of S100A4. Transfection with shRNAs markedly increased mineralized nodule formation and the osteogenic-related markers ALP and OCN levels in hPDLCs, whereas the overexpression of S100A4 significantly reduced mineralized nodule formation, and increased the matrix degradation enzymes MMP-2 and MMP-13 levels in hPDLCs. CONCLUSION S100A4 is upregulated in the experimental rat periodontitis and in IL-1β-treated hPDLCs, where S100A4 suppresses osteogenic differentiation and enhances matrix degradation. Thus, S100A4 is a potential target for the treatment of periodontitis.
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Liu C, Xiong H, Chen K, Huang Y, Huang Y, Yin X. Long-term exposure to pro-inflammatory cytokines inhibits the osteogenic/dentinogenic differentiation of stem cells from the apical papilla. Int Endod J 2015; 49:950-9. [DOI: 10.1111/iej.12551] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2015] [Accepted: 09/11/2015] [Indexed: 12/11/2022]
Affiliation(s)
- C. Liu
- Department of Stomatology; Guangzhou Women and Children's Medical Center; Guangzhou Medical University; Guangzhou China
| | - H. Xiong
- Department of Stomatology; Guangzhou Women and Children's Medical Center; Guangzhou Medical University; Guangzhou China
| | - K. Chen
- Department of Stomatology; Guangzhou Women and Children's Medical Center; Guangzhou Medical University; Guangzhou China
| | - Y. Huang
- Department of Stomatology; Guangzhou Women and Children's Medical Center; Guangzhou Medical University; Guangzhou China
| | - Y. Huang
- Department of Stomatology; Guangzhou Women and Children's Medical Center; Guangzhou Medical University; Guangzhou China
| | - X. Yin
- Department of Stomatology; Guangzhou Women and Children's Medical Center; Guangzhou Medical University; Guangzhou China
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Gao H, Li B, Zhao L, Jin Y. Influence of nanotopography on periodontal ligament stem cell functions and cell sheet based periodontal regeneration. Int J Nanomedicine 2015; 10:4009-27. [PMID: 26150714 PMCID: PMC4484652 DOI: 10.2147/ijn.s83357] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Periodontal regeneration is an important part of regenerative medicine, with great clinical significance; however, the effects of nanotopography on the functions of periodontal ligament (PDL) stem cells (PDLSCs) and on PDLSC sheet based periodontal regeneration have never been explored. Titania nanotubes (NTs) layered on titanium (Ti) provide a good platform to study this. In the current study, the influence of NTs of different tube size on the functions of PDLSCs was observed. Afterward, an ectopic implantation model using a Ti/cell sheets/hydroxyapatite (HA) complex was applied to study the effect of the NTs on cell sheet based periodontal regeneration. The NTs were able to enhance the initial PDLSC adhesion and spread, as well as collagen secretion. With the Ti/cell sheets/HA complex model, it was demonstrated that the PDLSC sheets were capable of regenerating the PDL tissue, when combined with bone marrow mesenchymal stem cell (BMSC) sheets and HA, without the need for extra soluble chemical cues. Simultaneously, the NTs improved the periodontal regeneration result of the ectopically implanted Ti/cell sheets/HA complex, giving rise to functionally aligned collagen fiber bundles. Specifically, much denser collagen fibers, with abundant blood vessels as well as cementum-like tissue on the Ti surface, which well-resembled the structure of natural PDL, were observed in the NT5 and NT10 sample groups. Our study provides the first evidence that the nanotopographical cues obviously influence the functions of PDLSCs and improve the PDLSC sheet based periodontal regeneration size dependently, which provides new insight to the periodontal regeneration. The Ti/cell sheets/HA complex may constitute a good model to predict the effect of biomaterials on periodontal regeneration.
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Affiliation(s)
- Hui Gao
- State Key Laboratory of Military Stomatology, Center for Tissue Engineering, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, People's Republic of China ; Research and Development Center for Tissue Engineering, The Fourth Military Medical University, Xi'an, Shaanxi, People's Republic of China ; Department of Stomatology, PLA 309th Hospital, Beijing, People's Republic of China
| | - Bei Li
- State Key Laboratory of Military Stomatology, Center for Tissue Engineering, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, People's Republic of China ; Research and Development Center for Tissue Engineering, The Fourth Military Medical University, Xi'an, Shaanxi, People's Republic of China
| | - Lingzhou Zhao
- State Key Laboratory of Military Stomatology, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, Shaanxi, People's Republic of China
| | - Yan Jin
- State Key Laboratory of Military Stomatology, Center for Tissue Engineering, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, People's Republic of China ; Research and Development Center for Tissue Engineering, The Fourth Military Medical University, Xi'an, Shaanxi, People's Republic of China
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Zhang W, Zhang X, Ling J, Liu W, Zhang X, Ma J, Zheng J. Proliferation and odontogenic differentiation of BMP2 gene‑transfected stem cells from human tooth apical papilla: an in vitro study. Int J Mol Med 2014; 34:1004-12. [PMID: 25070743 PMCID: PMC4152145 DOI: 10.3892/ijmm.2014.1862] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2014] [Accepted: 07/09/2014] [Indexed: 01/09/2023] Open
Abstract
Stem cells from the apical papilla (SCAP) have odontogenic potential, which plays a pivotal role in the root dentin development of permanent teeth. Human bone morphogenetic protein 2 (BMP2) is a well-known gene that participates in regulating the odontogenic differentiation of dental tissue-derived stem cells. However, little is known regarding the effects of the BMP2 gene on the proliferation and odontogenic differentiation of SCAP. This study aimed to evaluate the odontogenic differentiation potential of lentiviral-mediated BMP2 gene-transfected human SCAP (SCAP/BMP2) in vitro. SCAP were isolated by enzymatic dissociation of human teeth apical papillae. The multipotential of SCAP was verified by their osteogenic and adipogenic differentiation characteristics. The phenotype of SCAP was evaluated by flow cytometry (FCM). The proliferation status of the blank vector-transfected SCAP (SCAP/Vector) and SCAP/BMP2 was analyzed by a cell counting kit-8 (CCK-8). Odontogenic genes, including alkaline phosphatase (ALP), osteocalcin (OCN), dentin sialophosphoprotein (DSPP) and dentin matrix protein 1 (DMP1) of the two groups of cells were evaluated by quantitative polymerase chain reaction (qPCR). ALP staining and alizarin red (AR) staining of the cells was performed on the 16th day after transfection. In vitro results of CCK-8, qPCR, ALP and AR staining demonstrated that: i) SCAP/BMP2 had a comparable proliferation rate to SCAP/Vector; ii) SCAP/BMP2 presented significantly better potential to differentiate into odontoblasts compared to SCAP/Vector by upregulating ALP, OCN, DSPP and DMP1 genes; iii) more ALP granules and mineralized deposits were formed by SCAP/BMP2 as compared to SCAP/Vector. The results suggested that lentiviral-mediated BMP2 gene transfection enhances the odontogenic differentiation capacity of human SCAP in vitro.
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Affiliation(s)
- Wen Zhang
- Department of Operative Dentistry and Endodontics, Guanghua School and Hospital of Stomatology and Guangdong Province Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou 510080, P.R. China
| | - Xiaolei Zhang
- Department of Operative Dentistry and Endodontics, Guanghua School and Hospital of Stomatology and Guangdong Province Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou 510080, P.R. China
| | - Junqi Ling
- Department of Operative Dentistry and Endodontics, Guanghua School and Hospital of Stomatology and Guangdong Province Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou 510080, P.R. China
| | - Wei Liu
- Department of Operative Dentistry and Endodontics, Guanghua School and Hospital of Stomatology and Guangdong Province Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou 510080, P.R. China
| | - Xinchun Zhang
- Department of Operative Dentistry and Endodontics, Guanghua School and Hospital of Stomatology and Guangdong Province Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou 510080, P.R. China
| | - Jinglei Ma
- Department of Operative Dentistry and Endodontics, Guanghua School and Hospital of Stomatology and Guangdong Province Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou 510080, P.R. China
| | - Jianmao Zheng
- Department of Operative Dentistry and Endodontics, Guanghua School and Hospital of Stomatology and Guangdong Province Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou 510080, P.R. China
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