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Amir M, Jeevithan L, Barkat M, Fatima SH, Khan M, Israr S, Naseer F, Fayyaz S, Elango J, Wu W, Maté Sánchez de Val JE, Rahman SU. Advances in Regenerative Dentistry: A Systematic Review of Harnessing Wnt/β-Catenin in Dentin-Pulp Regeneration. Cells 2024; 13:1153. [PMID: 38995004 PMCID: PMC11240772 DOI: 10.3390/cells13131153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2024] [Revised: 06/25/2024] [Accepted: 07/01/2024] [Indexed: 07/13/2024] Open
Abstract
Dentin pulp has a complex function as a major unit in maintaining the vitality of teeth. In this sense, the Wnt/β-Catenin pathway has a vital part in tooth development, maintenance, repair, and regeneration by controlling physiological activities such as growth, differentiation, and migration. This pathway consists of a network of proteins, such as Wnt signaling molecules, which interact with receptors of targeted cells and play a role in development and adult tissue homeostasis. The Wnt signals are specific spatiotemporally, suggesting its intricate mechanism in development, regulation, repair, and regeneration by the formation of tertiary dentin. This review provides an overview of the recent advances in the Wnt/β-Catenin signaling pathway in dentin and pulp regeneration, how different proteins, molecules, and ligands influence this pathway, either upregulating or silencing it, and how it may be used in the future for clinical dentistry, in vital pulp therapy as an effective treatment for dental caries, as an alternative approach for root canal therapy, and to provide a path for therapeutic and regenerative dentistry.
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Affiliation(s)
- Mariam Amir
- Department of Oral Biology, Institute of Basic Medical Sciences, Khyber Medical University, Peshawar 25000, Pakistan
| | - Lakshmi Jeevithan
- Department of Marine Biopharmacology, College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China (W.W.)
| | - Maham Barkat
- Department of Oral Biology, Institute of Basic Medical Sciences, Khyber Medical University, Peshawar 25000, Pakistan
| | - Syeda Habib Fatima
- Department of Oral Biology, Institute of Basic Medical Sciences, Khyber Medical University, Peshawar 25000, Pakistan
| | - Malalai Khan
- Department of Oral Biology, Institute of Basic Medical Sciences, Khyber Medical University, Peshawar 25000, Pakistan
| | - Sara Israr
- Department of Oral Biology, Institute of Basic Medical Sciences, Khyber Medical University, Peshawar 25000, Pakistan
| | - Fatima Naseer
- Department of Oral Biology, Institute of Basic Medical Sciences, Khyber Medical University, Peshawar 25000, Pakistan
| | - Sarmad Fayyaz
- Department of Dental Materials Institute of Basic Medical Sciences, Khyber Medical University, Peshawar 25000, Pakistan
| | - Jeevithan Elango
- Department of Marine Biopharmacology, College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China (W.W.)
- Center of Molecular Medicine and Diagnostics (COMManD), Department of Biochemistry, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai 600077, India
- Department of Biomaterials Engineering, Faculty of Health Sciences, UCAM—Universidad Católica San Antonio de Murcia, Guadalupe, 30107 Murcia, Spain;
| | - Wenhui Wu
- Department of Marine Biopharmacology, College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China (W.W.)
| | - José Eduardo Maté Sánchez de Val
- Department of Biomaterials Engineering, Faculty of Health Sciences, UCAM—Universidad Católica San Antonio de Murcia, Guadalupe, 30107 Murcia, Spain;
| | - Saeed Ur Rahman
- Department of Oral Biology, Institute of Basic Medical Sciences, Khyber Medical University, Peshawar 25000, Pakistan
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Li Y, Huang X, Fu W, Zhang Z, Xiao K, Lv H. Preparation of PDA-GO/CS composite scaffold and its effects on the biological properties of human dental pulp stem cells. BMC Oral Health 2024; 24:157. [PMID: 38297260 PMCID: PMC10832331 DOI: 10.1186/s12903-023-03849-4] [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: 09/14/2023] [Accepted: 12/31/2023] [Indexed: 02/02/2024] Open
Abstract
Reduced graphene oxide (rGO) is an graphene oxide (GO) derivative of graphene, which has a large specific surface area and exhibited satisfactory physicochemical characteristics. In this experiment, GO was reduced by PDA to generate PDA-GO complex, and then PDA-GO was combined with Chitosan (CS) to synthesize PDA-GO/CS composite scaffold. PDA-GO was added to CS to improve the degradation rate of CS, and it was hoped that PDA-GO/CS composite scaffolds could be used in bone tissue engineering. Physicochemical and antimicrobial properties of the different composite scaffolds were examined to find the optimal mass fraction. Besides, we examined the scaffold's biocompatibility by Phalloidin staining and Live and Dead fluorescent staining.Finally, we applied ALP staining, RT-qPCR, and Alizarin red S staining to detect the effect of PDA-GO/CS on the osteogenic differentiation of human dental pulp stem cells (hDPSCs). The results showed that PDA-GO composite was successfully prepared and PDA-GO/CS composite scaffold was synthesized by combining PDA-GO with CS. Among them, 0.3%PDA-GO/CS scaffolds improves the antibacterial activity and hydrophilicity of CS, while reducing the degradation rate. In vitro, PDA-GO/CS has superior biocompatibility and enhances the early proliferation, migration and osteogenic differentiation of hDPSCs. In conclusion, PDA-GO/CS is a new scaffold materialsuitable for cell culture and has promising application prospect as scaffold for bone tissue engineering.
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Affiliation(s)
- Yaoyao Li
- Fujian Key Laboratory of Oral Diseases & Fujian Provincial Engineering Research Center of Oral Biomaterial & Stomatological Key laboratory of Fujian College and University, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, Fujian, People's Republic of China
| | - Xinhui Huang
- Fujian Key Laboratory of Oral Diseases & Fujian Provincial Engineering Research Center of Oral Biomaterial & Stomatological Key laboratory of Fujian College and University, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, Fujian, People's Republic of China
| | - Weihao Fu
- Fujian Key Laboratory of Oral Diseases & Fujian Provincial Engineering Research Center of Oral Biomaterial & Stomatological Key laboratory of Fujian College and University, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, Fujian, People's Republic of China
| | - Zonghao Zhang
- Fujian Key Laboratory of Oral Diseases & Fujian Provincial Engineering Research Center of Oral Biomaterial & Stomatological Key laboratory of Fujian College and University, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, Fujian, People's Republic of China
| | - Kuancheng Xiao
- Fujian Key Laboratory of Oral Diseases & Fujian Provincial Engineering Research Center of Oral Biomaterial & Stomatological Key laboratory of Fujian College and University, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, Fujian, People's Republic of China
| | - Hongbing Lv
- Fujian Key Laboratory of Oral Diseases & Fujian Provincial Engineering Research Center of Oral Biomaterial & Stomatological Key laboratory of Fujian College and University, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, Fujian, People's Republic of China.
- School and Hospital of Stomatology, Fujian Medical University, Fuzhou, Fujian, People's Republic of China.
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Li M, Wang Y, Xue J, Xu Q, Zhang Y, Liu J, Xu H, Guan Z, Bian C, Zhang G, Yu Y. Baicalin can enhance odonto/osteogenic differentiation of inflammatory dental pulp stem cells by inhibiting the NF-κB and β-catenin/Wnt signaling pathways. Mol Biol Rep 2023; 50:4435-4446. [PMID: 37009956 PMCID: PMC10068215 DOI: 10.1007/s11033-023-08398-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Accepted: 03/21/2023] [Indexed: 04/04/2023]
Abstract
BACKGROUND Scutellaria baicalensis Georgi is a famous traditional Chinese medicine, which is widely used in treating fever, upper respiratory tract infection and other diseases. Pharmacology study showed it can exhibit anti-bacterial, anti-inflammation and analgesic effects. In this study, we investigated the effect of baicalin on the odonto/osteogenic differentiation of inflammatory dental pulp stem cells (iDPSCs). METHODS AND RESULTS iDPSCs were isolated from the inflamed pulps collected from pulpitis. The proliferation of iDPSCs was detected by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-2,5-tetrazolium bromide (MTT) assay and flow cytometry. Alkaline phosphatase (ALP) activity assay, alizarin red staining, Real-time reverse transcription-polymerase chain reaction (RT-PCR) and Western blot assay were conducted to examine the differentiation potency along with the involvement of nuclear factor kappa B(NF-κB) and β-catenin/Wnt signaling pathway. MTT assay and cell-cycle analysis demonstrated that baicalin had no influence on the proliferation of iDPSCs. ALP activity assay and alizarin red staining demonstrated that baicalin could obviously enhance ALP activity and calcified nodules formed in iDPSCs. RT-PCR and Western blot showed that the odonto/osteogenic markers were upregulated in baicalin-treated iDPSCs. Moreover, expression of cytoplastic phosphor-P65, nuclear P65, and β-catenin in iDPSCs was significantly increased compared with DPSCs, but the expression in baicalin-treated iDPSCs was inhibited. In addition, 20 µM Baicalin could accelerate odonto/osteogenic differentiation of iDPSCs via inhibition of NF-κB and β-catenin/Wnt signaling pathways. CONCLUSION Baicalin can promote odonto/osteogenic differentiation of iDPSCs through inhibition of NF-κB and β-catenin/Wnt pathways, thus providing direct evidence that baicalin may be effective in repairing pulp with early irreversible pulpitis.
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Affiliation(s)
- Mengyuan Li
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Shang-Hai Road 1Th, Nanjing, 210029, Jiangsu, China
- Department of General Dentistry, Affiliated Hospital of Stomatology, Nanjing Medical University, Shang-Hai Road 1Th, Nanjing, Jiangsu, China
| | - Yumeng Wang
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Shang-Hai Road 1Th, Nanjing, 210029, Jiangsu, China
- Department of General Dentistry, Affiliated Hospital of Stomatology, Nanjing Medical University, Shang-Hai Road 1Th, Nanjing, Jiangsu, China
| | - Jing Xue
- Department of Critical Care, Changsha of Traditional Chinese Medicine Hospital, Changsha, Hunan, China
| | - Qingqing Xu
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Shang-Hai Road 1Th, Nanjing, 210029, Jiangsu, China
- Department of General Dentistry, Affiliated Hospital of Stomatology, Nanjing Medical University, Shang-Hai Road 1Th, Nanjing, Jiangsu, China
| | - Yuerong Zhang
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Shang-Hai Road 1Th, Nanjing, 210029, Jiangsu, China
- Department of General Dentistry, Affiliated Hospital of Stomatology, Nanjing Medical University, Shang-Hai Road 1Th, Nanjing, Jiangsu, China
| | - Jie Liu
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Shang-Hai Road 1Th, Nanjing, 210029, Jiangsu, China
- Department of General Dentistry, Affiliated Hospital of Stomatology, Nanjing Medical University, Shang-Hai Road 1Th, Nanjing, Jiangsu, China
| | - Hai Xu
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Shang-Hai Road 1Th, Nanjing, 210029, Jiangsu, China
- Department of Conservative Dentistry and Endodontics, Affiliated Hospital of Stomatology, Nanjing Medical University, Shang-Hai Road 1Th, Nanjing, Jiangsu, China
| | - Zhuo Guan
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Shang-Hai Road 1Th, Nanjing, 210029, Jiangsu, China
- Department of General Dentistry, Affiliated Hospital of Stomatology, Nanjing Medical University, Shang-Hai Road 1Th, Nanjing, Jiangsu, China
| | - Chengyue Bian
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Shang-Hai Road 1Th, Nanjing, 210029, Jiangsu, China
- Department of General Dentistry, Affiliated Hospital of Stomatology, Nanjing Medical University, Shang-Hai Road 1Th, Nanjing, Jiangsu, China
| | - Guangdong Zhang
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Shang-Hai Road 1Th, Nanjing, 210029, Jiangsu, China.
- Department of General Dentistry, Affiliated Hospital of Stomatology, Nanjing Medical University, Shang-Hai Road 1Th, Nanjing, Jiangsu, China.
| | - Yan Yu
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Shang-Hai Road 1Th, Nanjing, 210029, Jiangsu, China.
- Department of Conservative Dentistry and Endodontics, Affiliated Hospital of Stomatology, Nanjing Medical University, Shang-Hai Road 1Th, Nanjing, Jiangsu, China.
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Li P, Ou Q, Shi S, Shao C. Immunomodulatory properties of mesenchymal stem cells/dental stem cells and their therapeutic applications. Cell Mol Immunol 2023; 20:558-569. [PMID: 36973490 PMCID: PMC10040934 DOI: 10.1038/s41423-023-00998-y] [Citation(s) in RCA: 37] [Impact Index Per Article: 37.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2022] [Accepted: 03/02/2023] [Indexed: 03/29/2023] Open
Abstract
Mesenchymal stem/stromal cells (MSCs) are widely distributed in the body and play essential roles in tissue regeneration and homeostasis. MSCs can be isolated from discarded tissues, expanded in vitro and used as therapeutics for autoimmune diseases and other chronic disorders. MSCs promote tissue regeneration and homeostasis by primarily acting on immune cells. At least six different types of MSCs have been isolated from postnatal dental tissues and have remarkable immunomodulatory properties. Dental stem cells (DSCs) have been demonstrated to have therapeutic effects on several systemic inflammatory diseases. Conversely, MSCs derived from nondental tissues such as the umbilical cord exhibit great benefits in the management of periodontitis in preclinical studies. Here, we discuss the main therapeutic uses of MSCs/DSCs, their mechanisms, extrinsic inflammatory cues and the intrinsic metabolic circuitries that govern the immunomodulatory functions of MSCs/DSCs. Increased understanding of the mechanisms underpinning the immunomodulatory functions of MSCs/DSCs is expected to aid in the development of more potent and precise MSC/DSC-based therapeutics.
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Affiliation(s)
- Peishan Li
- The First Affiliated Hospital of Soochow University, State Key Laboratory of Radiation Medicine and Protection, Institutes for Translational Medicine, Soochow University, Suzhou, PR China
| | - Qianmin Ou
- South China Center of Craniofacial Stem Cell Research, Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-Sen University, Guangzhou, PR China
| | - Songtao Shi
- South China Center of Craniofacial Stem Cell Research, Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-Sen University, Guangzhou, PR China.
| | - Changshun Shao
- The First Affiliated Hospital of Soochow University, State Key Laboratory of Radiation Medicine and Protection, Institutes for Translational Medicine, Soochow University, Suzhou, PR China.
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Bucchi C, Bucchi A, Martínez-Rodríguez P. Biological Properties of Dental Pulp Stem Cells Isolated from Inflamed and Healthy Pulp and Cultured in an Inflammatory Microenvironment. J Endod 2023; 49:395-401.e6. [PMID: 36828285 DOI: 10.1016/j.joen.2023.02.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 02/01/2023] [Accepted: 02/03/2023] [Indexed: 02/24/2023]
Abstract
INTRODUCTION The aim of this study was to assess whether the biological characteristics of dental pulp stem cells (DPSCs), such as viability, adhesion to dentin, mineralization, and release of immunomodulatory cytokines, are affected by the inflammatory status of the donor tissue and/or the sustained inflammatory environment. METHODS DPSCs were isolated from pulps from 3 caries-free teeth (healthy or hDPSCs), and from 3 teeth with irreversible pulpitis or deep caries (unhealthy DPSCs or uDPSCs). The cells were cultured in odontogenic and osteogenic media with or without lipopolysaccharides. Viability was analyzed by MTT assay at days 1, 3, 5, and 7; adhesion to dentin was evaluated through an environmental scanning electron microscope after 48 hours and through MTT assay; mineralization was analyzed with alizarin red staining after 21 days; and the release of proinflammatory (interleukin 6) and immunosuppressive cytokines (interleukin 10) was measured with the enzyme-linked immunosorbent assay after 24 hours and 7 days. RESULTS The inflammatory status of the pulp significantly reduced the viability and mineralization capacity of the DPSCs, although it did not affect the adhesion capacity to dentin or the secretion of the proinflammatory interleukin. The inflammatory microenvironment (lipopolysaccharide) only had a significant impact on the secretion of interleukin 6, which was augmented after 7 days. CONCLUSIONS The inflammatory status of the dental pulp should be taken into account when the use of DPSCs is intended either for research and/or for application in reparative or regenerative therapies.
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Affiliation(s)
- Cristina Bucchi
- Integral Adult Dentistry Department, Universidad de La Frontera, Temuco, Chile; Oral Biology Center, Faculty of Dentistry, Universidad de La Frontera, Temuco, Chile.
| | - Ana Bucchi
- Centro de Investigación en Odontología Legal y Forense (CIO), Faculty of Dentistry, Universidad de La Frontera, Temuco, Chile
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Gopinath VK, Mohammad MG, Sheela S. Immunomodulatory effect of IL-1RA in LPS-activated macrophage/dental pulp stem cells co-culture. Int Endod J 2023; 56:27-38. [PMID: 36190353 DOI: 10.1111/iej.13839] [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: 01/29/2022] [Revised: 09/23/2022] [Accepted: 09/25/2022] [Indexed: 12/13/2022]
Abstract
AIMS Lipopolysaccharides (LPS)-activated human dental pulp stem cells (hDPSCs) and macrophage co-cultures showed downregulated TNF-α secretion that is modulated by hDPSCs through IDO axis, whereas the secretory levels of IL-1β remained unchanged. Therefore, sustained production of IL-1β could contribute to progressive dental pulp inflammation. However, the role of interleukin-1 receptor antagonist (IL-1RA) in downregulating the secretion of IL-1β and TNF-α in LPS-activated M0/M1/M2 macrophage and hDPSCs co-culture has not been studied yet. Therefore, the aim of the present study was to determine the immunomodulatory role of blocking IL-1 receptors in DPSCs macrophage co-culture activated with LPS. METHODOLOGY Human monocytic cell line THP-1 was polarized to M0, M1 and M2 macrophages and co-cultured with hDPSCs. The viability of the co-cultured cells was assessed by apoptosis assay. Co-cultures were activated with LPS followed by the assessment of gene expression and protein levels of IL-1β and TNF-α with and without IL-1RA blocking via qRT-PCR and cytokine flex assay by flow cytometry. Data from three separate experiments were analysed using one-way anova followed by Tukey's post hoc test and a p-value of <.05 was considered statistically significant. RESULTS THP-1-derived M0, M1 and M2 macrophages co-cultured with hDPSCs showed spindle and round-shaped cells, with >90% viability when assessed by apoptosis assay. Inflammatory TNF-α and IL-1β profiles in stimulated co-cultures showed upregulated IL-1β, whereas TNF-α was downregulated (p < .05). Anti-inflammatory gene expression levels of IL-10 and TGF-β were downregulated (p < .05). Blocking with IL-1RA resulted in a remarkable decrease in IL-1β at the gene expression and protein production levels whilst TNF-α levels remained low (p < .05). Levels of anti-inflammatory cytokine IL-10 showed no significant difference. CONCLUSION Blocking the IL-1 receptor in hDPSCs and macrophage (M0, M1, M2) co-cultures activated with LPS resulted in downregulation of inflammatory cytokines IL-1β and TNF-α. These findings highlight the immunomodulatory effect of IL-1RA in inflammatory conditions of dental pulp infections.
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Affiliation(s)
- Vellore Kannan Gopinath
- Department of Preventive and Restorative Dentistry, College of Dental Medicine, University of Sharjah, Sharjah, UAE.,Sharjah Institute for Medical Research, University of Sharjah, Sharjah, UAE
| | - Mohammad G Mohammad
- Sharjah Institute for Medical Research, University of Sharjah, Sharjah, UAE.,Department of Medical Laboratory Sciences, College of Health Sciences, University of Sharjah, Sharjah, UAE
| | - Soumya Sheela
- Sharjah Institute for Medical Research, University of Sharjah, Sharjah, UAE
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Lei Q, Liang Z, Lei Q, Liang F, Ma J, Wang Z, He S. Analysis of circRNAs profile in TNF-α treated DPSC. BMC Oral Health 2022; 22:269. [PMID: 35786385 PMCID: PMC9251952 DOI: 10.1186/s12903-022-02267-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Accepted: 04/21/2022] [Indexed: 12/28/2022] Open
Abstract
Background Pulpitis often are characterized as sustained inflammation and impaired pulp self-repair. Circular RNAs (circRNAs) have been reported to be involved in the development of inflammation, but their influence in pulpitis is still unidentified, which was examined in our research. Methods In this study, TNF-α (20 ng/mL) was used to treat DPSCs, then MTS identified cell proliferation. The circRNAs profile in DPSCs with or without TNF-α treatment was evaluated using RNA sequencing and subsequently by bioinformatics analysis. After that, the circular structure was assessed using agarose gel electrophoresis, followed by Sanger sequencing. And the circRNAs expression was ratified using quantitative real-time polymerase chain reaction in cell and tissues samples. Additionally, the plausible mechanism of circRNAs was envisaged, and the circRNA-miRNA-mRNA linkage was plotted using Cytoscape. Results The treatment of TNF-α inhibited cell proliferation capabilities in DPSCs, which also made 1195 circRNA expressions undergo significant alterations. Among these changes, 11 circRNAs associated with inflammation were chosen for circular structure verification, and only seven circRNAs (hsa_circ_0001658, hsa_circ_0001978, hsa_circ_0003910, hsa_circ_0004314, hsa_circ_0004417, hsa_circ_0035915, and hsa_circ_0002545) had circular structure. Additionally, five circRNAs expressions (hsa_circ_0001978, hsa_circ_0003910, hsa_circ_0004314, hsa_circ_0004417, and hsa_circ_0035915) had significantly altered between with or without TNF-α treated DPSCs. Furthermore, hsa_circ_0001978 and hsa_circ_0004417 were increased in patients suffering from pulpitis. Furthermore, their ceRNA linkage and Kyoto Encyclopedia of Genes and Genomes analysis suggested that these two circRNAs may participate in the inflammation development of pulpitis via mitogen-activated protein kinase and the Wnt signaling pathway. Conclusion This study revealed that the circRNAs profile was altered in TNF-α treated DPSCs. Also, hsa_circ_0001978 and hsa_circ_0004417 may be involved in the inflammation progress of pulpitis. These outcomes provided the latest information for additional research on pulpitis. Supplementary Information The online version contains supplementary material available at 10.1186/s12903-022-02267-2.
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Affiliation(s)
- Qiyin Lei
- Stomatology and Cosmetic Dentistry Center, Shenzhen Hospital of Southern Medical University, Shenzhen, 518000, Guangdong, China
| | - Zezi Liang
- Stomatology and Cosmetic Dentistry Center, Shenzhen Hospital of Southern Medical University, Shenzhen, 518000, Guangdong, China
| | - Qiaoling Lei
- Stomatology and Cosmetic Dentistry Center, Shenzhen Hospital of Southern Medical University, Shenzhen, 518000, Guangdong, China
| | - Fuying Liang
- Stomatology and Cosmetic Dentistry Center, Shenzhen Hospital of Southern Medical University, Shenzhen, 518000, Guangdong, China
| | - Jing Ma
- Stomatology and Cosmetic Dentistry Center, Shenzhen Hospital of Southern Medical University, Shenzhen, 518000, Guangdong, China
| | - Zhongdong Wang
- Stomatology and Cosmetic Dentistry Center, Shenzhen Hospital of Southern Medical University, Shenzhen, 518000, Guangdong, China.
| | - Shoudi He
- Traditional Chinese Medicine Department of Rheumatism, Huazhong University of Science and Technology Union Shenzhen Hospital, No.89 Taoyuan Road, Nanshan District, Shenzhen, 518052, Guangdong, China.
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Yu S, Chen X, Liu Y, Zhuang XY, Wang AC, Liu XM, Zhu S. Exosomes derived from stem cells from the apical papilla alleviate inflammation in rat pulpitis by upregulating regulatory T cells. Int Endod J 2022; 55:517-530. [PMID: 35274316 DOI: 10.1111/iej.13721] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Accepted: 03/04/2022] [Indexed: 11/28/2022]
Abstract
AIM To evaluate the effects of exosomes derived from stem cells from the apical papilla (SCAP-Exos) in rats with experimentally induced pulpitis and the effects of SCAP-Exos on the conversion of regulatory T cells (Tregs) and methylation status of the Foxp3 locus in Tregs in vitro. METHODOLOGY SCAP-Exos were isolated and identified using transmission electron microscopy, western blotting, and nanoparticle tracking analysis. Lipopolysaccharide was used to experimentally induced pulpitis in rats, and the effects of SCAP-Exos on the rats with pulpitis were detected using haematoxylin-eosin staining and immunofluorescence staining. CD4+CD25- T cells were treated with different doses of SCAP-Exos, and flow cytometric analysis was used to assess the effects of SCAP-Exos on Treg proliferation and conversion. An enzyme-linked immunosorbent assay (ELISA) was used to evaluate the expression of interleukin 10 (IL-10). MethylTarget® technology was used to measure the methylation level of the Foxp3 locus in T cells. The expression levels of ten-eleven-translocation (Tet) 1, Tet2, and Tet3 in T cells were detected by real-time PCR and western blotting. RESULTS SCAP-Exos had an elliptical vesicle-like structure with a diameter of approximately 143.7 nm and expressed the exosomal markers Alix and CD9. SCAP-Exo administration increased Treg accumulation in the inflamed dental pulp and alleviated inflammation in the dental pulp in vivo. SCAP-Exos promoted Treg conversion in vitro. Mechanistically, SCAP-Exos promoted Tet2-mediated Foxp3 demethylation to maintain the stable expression of Foxp3. CONCLUSIONS SCAP-Exos promoted Treg conversion and effectively alleviated inflammation in the dental pulp of rats. This study shows that SCAP-Exos can regulate the local immune microenvironment to favour tissue regeneration, thus providing a potential novel strategy utilising SCAP-Exos as a cell-free approach to treat early inflammation of dental pulp in immature permanent teeth in the clinic.
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Affiliation(s)
- S Yu
- Department of Paediatric Dentistry, School and Hospital of Stomatology, China Medical University, Shenyang, China; Liaoning Province Key Laboratory of Oral Disease, Shenyang, China
| | - X Chen
- Department of Paediatric Dentistry, School and Hospital of Stomatology, China Medical University, Shenyang, China; Liaoning Province Key Laboratory of Oral Disease, Shenyang, China
| | - Y Liu
- Department of Paediatric Dentistry, School and Hospital of Stomatology, China Medical University, Shenyang, China; Liaoning Province Key Laboratory of Oral Disease, Shenyang, China
| | - X Y Zhuang
- Department of Paediatric Dentistry, School and Hospital of Stomatology, China Medical University, Shenyang, China; Liaoning Province Key Laboratory of Oral Disease, Shenyang, China
| | - A C Wang
- Department of Paediatric Dentistry, School and Hospital of Stomatology, China Medical University, Shenyang, China; Liaoning Province Key Laboratory of Oral Disease, Shenyang, China
| | - X M Liu
- Department of Paediatric Dentistry, School and Hospital of Stomatology, China Medical University, Shenyang, China; Liaoning Province Key Laboratory of Oral Disease, Shenyang, China
| | - S Zhu
- Department of Paediatric Dentistry, School and Hospital of Stomatology, China Medical University, Shenyang, China; Liaoning Province Key Laboratory of Oral Disease, Shenyang, China
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Okić-Đorđević I, Obradović H, Kukolj T, Petrović A, Mojsilović S, Bugarski D, Jauković A. Dental mesenchymal stromal/stem cells in different microenvironments— implications in regenerative therapy. World J Stem Cells 2021; 13:1863-1880. [PMID: 35069987 PMCID: PMC8727232 DOI: 10.4252/wjsc.v13.i12.1863] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 06/15/2021] [Accepted: 11/25/2021] [Indexed: 02/06/2023] Open
Abstract
Current research data reveal microenvironment as a significant modifier of physical functions, pathologic changes, as well as the therapeutic effects of stem cells. When comparing regeneration potential of various stem cell types used for cytotherapy and tissue engineering, mesenchymal stem cells (MSCs) are currently the most attractive cell source for bone and tooth regeneration due to their differentiation and immunomodulatory potential and lack of ethical issues associated with their use. The microenvironment of donors and recipients selected in cytotherapy plays a crucial role in regenerative potential of transplanted MSCs, indicating interactions of cells with their microenvironment indispensable in MSC-mediated bone and dental regeneration. Since a variety of MSC populations have been procured from different parts of the tooth and tooth-supporting tissues, MSCs of dental origin and their achievements in capacity to reconstitute various dental tissues have gained attention of many research groups over the years. This review discusses recent advances in comparative analyses of dental MSC regeneration potential with regards to their tissue origin and specific microenvironmental conditions, giving additional insight into the current clinical application of these cells.
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Affiliation(s)
- Ivana Okić-Đorđević
- Laboratory for Experimental Hematology and Stem Cells, Institute for Medical Research, University of Belgrade, Belgrade 11129, Serbia
| | - Hristina Obradović
- Laboratory for Experimental Hematology and Stem Cells, Institute for Medical Research, University of Belgrade, Belgrade 11129, Serbia
| | - Tamara Kukolj
- Laboratory for Experimental Hematology and Stem Cells, Institute for Medical Research, University of Belgrade, Belgrade 11129, Serbia
| | - Anđelija Petrović
- Laboratory for Experimental Hematology and Stem Cells, Institute for Medical Research, University of Belgrade, Belgrade 11129, Serbia
| | - Slavko Mojsilović
- Laboratory for Experimental Hematology and Stem Cells, Institute for Medical Research, University of Belgrade, Belgrade 11129, Serbia
| | - Diana Bugarski
- Laboratory for Experimental Hematology and Stem Cells, Institute for Medical Research, University of Belgrade, Belgrade 11129, Serbia
| | - Aleksandra Jauković
- Laboratory for Experimental Hematology and Stem Cells, Institute for Medical Research, University of Belgrade, Belgrade 11129, Serbia
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