1
|
Huang L, Chen X, Yang X, Zhang Y, Liang Y, Qiu X. Elucidating epigenetic mechanisms governing odontogenic differentiation in dental pulp stem cells: an in-depth exploration. Front Cell Dev Biol 2024; 12:1394582. [PMID: 38863943 PMCID: PMC11165363 DOI: 10.3389/fcell.2024.1394582] [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: 03/01/2024] [Accepted: 05/13/2024] [Indexed: 06/13/2024] Open
Abstract
Epigenetics refers to the mechanisms such as DNA methylation and histone modification that influence gene expression without altering the DNA sequence. These epigenetic modifications can regulate gene transcription, splicing, and stability, thereby impacting cell differentiation, development, and disease occurrence. The formation of dentin is intrinsically linked to the odontogenic differentiation of dental pulp stem cells (DPSCs), which are recognized as the optimal cell source for dentin-pulp regeneration due to their varied odontogenic potential, strong proliferative and angiogenic characteristics, and ready accessibility Numerous studies have demonstrated the critical role of epigenetic regulation in DPSCs differentiation into specific cell types. This review thus provides a comprehensive review of the mechanisms by which epigenetic regulation controls the odontogenesis fate of DPSCs.
Collapse
Affiliation(s)
| | | | | | | | | | - Xiaoling Qiu
- Department of Endodontics, Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, Guangdong, China
| |
Collapse
|
2
|
Chi Y, Liu T, Jin Q, Liu H. Extracellular Vesicles Carrying RUNX3 Promote Differentiation of Dental Pulp Stem Cells. Tissue Eng Regen Med 2024; 21:111-122. [PMID: 37684540 PMCID: PMC10764680 DOI: 10.1007/s13770-023-00578-1] [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: 05/08/2023] [Revised: 07/07/2023] [Accepted: 07/11/2023] [Indexed: 09/10/2023] Open
Abstract
BACKGROUND This study aims to clarify the mechanism underlying dental pulp cells-extracellular vesicles (DPC-EVs) carrying runt-related transcription factor 3 (RUNX3) in mediating odontogenic differentiation of dental pulp stem cells (DPSCs) with the involvement of miR-30a-5p-regulated NOTCH1. METHODS Extracellular vesicles (EVs) were isolated from human DPSCs, and identified using transmission electron microscopy, and nanoparticle tracking analysis. PBS, EVs, or EV inhibitor GW4869 was added to DPSCs for co-culture, whilst odontogenic differentiation was assessed in terms of ratio of mineralized nodules and expression odontoblast differentiation markers. Dual luciferase reporter gene assay and chromatin immunoprecipitation for binding relation among RUNX3, miR-30a-5p and NOTCH1were employed to evaluate their roles in odontogenic differentiation was determined. Animal experiment was established to confirm the effect of DPC-EVs-loaded RUNX3 on dental pulp. RESULTS In vitro finding demonstrated that EVs delivered RUNX3 to DPSCs, thereby activated miR-30a-5p expression and inhibited NOTCH1 expression, which was reversed by addition of GW4869. RUNX3 upregulation promoted miR-30a-5p while miR-30a-5p targeted and inhibited NOTCH1. Silencing of RUNX3 in EVs decreased expression of those differentiation markers, downregulated miR-30a-5p and upregulated NOTCH1. CONCLUSION DPSC-EVs can carry RUNX3 to the DPSCs, promote the transcription of miR-30a-5p, and then inhibit the expression of NOTCH1, and finally promote the odontogenic differentiation of DPSCs.
Collapse
Affiliation(s)
- Yuhong Chi
- Department of Stomatology, The People's Hospital of Suzhou New District, 16-502, Dongbang Xinyuan, Fengqiao Street, Huqiu District, Suzhou, Jiangsu Province, People's Republic of China
| | - Tingzhong Liu
- Department of Stomatology, The People's Hospital of Suzhou New District, 16-502, Dongbang Xinyuan, Fengqiao Street, Huqiu District, Suzhou, Jiangsu Province, People's Republic of China
| | - Qingsong Jin
- Department of Oral and Maxillofacial Surgery, The First Hospital of Qiqihar, Affiliated Qiqihar Hospital of Southern Medical University, Qiqihar, People's Republic of China
| | - Hao Liu
- Department of Stomatology, The People's Hospital of Suzhou New District, 16-502, Dongbang Xinyuan, Fengqiao Street, Huqiu District, Suzhou, Jiangsu Province, People's Republic of China.
| |
Collapse
|
3
|
Calsa B, de Camargo LS, Bortolança TJ, de Oliveira CA, Catisti R, do Amaral FG, Santamaria-Jr M. Absence of melatonin during development impairs craniofacial and dental onset in rats. Clin Oral Investig 2023; 27:5353-5365. [PMID: 37454327 DOI: 10.1007/s00784-023-05155-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Accepted: 07/11/2023] [Indexed: 07/18/2023]
Abstract
OBJECTIVE Herein, we evaluated pinealectomy-induced melatonin absence to determine its effects on craniofacial and dental development in the offspring. DESIGN Female Wistar rats in three groups, i.e., intact pregnant rats, pinealectomized pregnant rats (PINX), and pinealectomized pregnant rats subjected to oral melatonin replacement therapy, were crossed 30 days after surgery. The heads of 7-day-old pups were harvested for cephalometric and histological analyses, and maxillae and incisors were collected for mRNA expression analysis. RESULTS The PINX pups exhibited a reduction in neurocranial and facial parameters such as a decrease in alveolar bone area, incisor size and proliferation, and an increase in odontoblasts and the dentin layer. Based on incisor mRNA expression analysis, we found that Dmp1 expression was upregulated, whereas Col1a1 expression was downregulated. Maxillary mRNA expression revealed that Rankl expression was upregulated, whereas that of Opn and Osx was downregulated. CONCLUSION Our results demonstrated that the absence of maternal melatonin during early life could affect dental and maxillary development in offspring, as well as delay odontogenesis and osteogenesis in maxillary tissues. CLINICAL RELEVANCE Our findings suggest that disruptions or a lack of melatonin during pregnancy may cause changes in craniofacial and dental development, at least in animal experiments; however, in humans, these feedings are still poorly understood, and thus careful evaluations of melatonin levels in humans need to be investigated in craniofacial alterations.
Collapse
Affiliation(s)
- Bruno Calsa
- Graduate Program of Biomedical Sciences, Hermínio Ometto Foundation - FHO, Araras, SP, Brazil
- Fetal Programming and Hydroelectrolyte Metabolism Laboratory, Department of Internal Medicine, Faculty of Medical Sciences at State University of Campinas - UNICAMP, Campinas, SP, Brazil
| | - Ludmilla Scodeler de Camargo
- Pineal Neurobiology Laboratory, Department of Physiology, Federal University of São Paulo - UNIFESP, São Paulo, SP, Brazil
| | | | | | - Rosana Catisti
- Graduate Program of Biomedical Sciences, Hermínio Ometto Foundation - FHO, Araras, SP, Brazil
| | - Fernanda Gaspar do Amaral
- Pineal Neurobiology Laboratory, Department of Physiology, Federal University of São Paulo - UNIFESP, São Paulo, SP, Brazil
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo - USP, São Paulo, SP, Brazil
| | - Milton Santamaria-Jr
- Graduate Program of Biomedical Sciences, Hermínio Ometto Foundation - FHO, Araras, SP, Brazil.
- Graduate Program of Orthodontics Hermínio Ometto Foundation - FHO, Araras, SP, Brazil.
- Department of Social and Pediatric Dentistry, Institute of Science and Technology - College of Dentistry, UNESP - São Paulo State University, Av. Eng. Francisco José Longo 777, São José Dos Campos, SP, 12245-000, Brazil.
| |
Collapse
|
4
|
Liu Y, Gan L, Cui DX, Yu SH, Pan Y, Zheng LW, Wan M. Epigenetic regulation of dental pulp stem cells and its potential in regenerative endodontics. World J Stem Cells 2021; 13:1647-1666. [PMID: 34909116 PMCID: PMC8641018 DOI: 10.4252/wjsc.v13.i11.1647] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Revised: 06/07/2021] [Accepted: 11/03/2021] [Indexed: 02/06/2023] Open
Abstract
Regenerative endodontics (RE) therapy means physiologically replacing damaged pulp tissue and regaining functional dentin–pulp complex. Current clinical RE procedures recruit endogenous stem cells from the apical papilla, periodontal tissue, bone marrow and peripheral blood, with or without application of scaffolds and growth factors in the root canal space, resulting in cementum-like and bone-like tissue formation. Without the involvement of dental pulp stem cells (DPSCs), it is unlikely that functional pulp regeneration can be achieved, even though acceptable repair can be acquired. DPSCs, due to their specific odontogenic potential, high proliferation, neurovascular property, and easy accessibility, are considered as the most eligible cell source for dentin–pulp regeneration. The regenerative potential of DPSCs has been demonstrated by recent clinical progress. DPSC transplantation following pulpectomy has successfully reconstructed neurovascularized pulp that simulates the physiological structure of natural pulp. The self-renewal, proliferation, and odontogenic differentiation of DPSCs are under the control of a cascade of transcription factors. Over recent decades, epigenetic modulations implicating histone modifications, DNA methylation, and noncoding (nc)RNAs have manifested as a new layer of gene regulation. These modulations exhibit a profound effect on the cellular activities of DPSCs. In this review, we offer an overview about epigenetic regulation of the fate of DPSCs; in particular, on the proliferation, odontogenic differentiation, angiogenesis, and neurogenesis. We emphasize recent discoveries of epigenetic molecules that can alter DPSC status and promote pulp regeneration through manipulation over epigenetic profiles.
Collapse
Affiliation(s)
- Ying Liu
- 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 610041, Sichuan Province, China
| | - Lu Gan
- 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 610041, Sichuan Province, China
| | - Di-Xin Cui
- 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 610041, Sichuan Province, China
| | - Si-Han Yu
- 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 610041, Sichuan Province, China
| | - Yue Pan
- 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 610041, Sichuan Province, China
| | - Li-Wei Zheng
- 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 610041, Sichuan Province, China
| | - Mian Wan
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan Province, China
| |
Collapse
|
5
|
Dawoud LE, Hegazy EM, Galhom RA, Youssef MM. Photobiomodulation therapy upregulates the growth kinetics and multilineage differentiation potential of human dental pulp stem cells-an in vitro Study. Lasers Med Sci 2021; 37:1993-2003. [PMID: 34787763 DOI: 10.1007/s10103-021-03461-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Accepted: 11/03/2021] [Indexed: 11/30/2022]
Abstract
This study aims to evaluate the impact of red LED irradiation on the viability, proliferation, colonogenic potential, markers expression along with osteogenic and chondrogenic differentiation of dental pulp stem cells. DPSCs were isolated from sound human permanent teeth using enzymatic digestion method and seeded with regular culture media. Cells at P4 were irradiated using red LED Light (627 nm, 2 J/cm2) and examined for growth kinetics, and multilineage differentiation using the appropriate differentiation media. The irradiated groups showed an increase in cellular growth rates, cell viability, clonogenic potential, and decrease in population doubling time compared to the control group. Cells of the irradiated groups showed enhanced differentiation towards osteogenic and chondrogenic lineages as revealed by histochemical staining using alizarin red and alcian blue stains. Photobiomodulation is an emerging promising element of tissue engineering triad besides stem cells, scaffolds, and growth factors.
Collapse
Affiliation(s)
- Lama E Dawoud
- Oral Biology Department, Faculty of Dentistry, Suez Canal University, Ismailia, 41523, Egypt.
| | - Enas M Hegazy
- Oral Biology Department, Faculty of Dentistry, Suez Canal University, Ismailia, 41523, Egypt
| | - Rania A Galhom
- Human Anatomy and Embryology Department, Faculty of Medicine, Suez Canal University, Ismailia, 41523, Egypt
| | - Mervat M Youssef
- Oral Biology Department, Faculty of Dentistry, Suez Canal University, Ismailia, 41523, Egypt
| |
Collapse
|
6
|
Li Q, Huang L. MiR-148a-3p Regulates the Invasion and Odontoblastic Differentiation of Human Dental Pulp Stem Cells via the Wnt1/ β-Catenin Pathway. Int J Stem Cells 2021; 14:434-446. [PMID: 34456188 PMCID: PMC8611305 DOI: 10.15283/ijsc20118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 04/20/2021] [Accepted: 05/17/2021] [Indexed: 11/09/2022] Open
Abstract
Background and Objectives MiR-148a-3p has been reported to regulate the differentiation of marrow stromal cell osteoblast. In this study, whether miR-148a-3p regulated the odontoblastic differentiation of human dental pulp stem cells (hDPSCs) or not was explored. Methods and Results The hDPSCs were isolated and identified via flow cytometry. Targets of miR-148a-3p were identified via bioinformatics and dual-luciferase reporter assay. After the cell was cultured in the odontogenic differentiation medium or infected, cell viability, invasion, and odontoblastic differentiation were detected via MTT, transwell, and Alizarin Red S staining, respectively. The miR-148a-3p, Wnt1, β-catenin, DSPP, DMP-1, RUNX2, OCN, and Smad4 expressions were determined by RT-qPCR and Western blot. The hDPSCs odontoblastic differentiation downregulated the miR-148a-3p expression and upregulated Wnt1 expression. Wnt1 was determined as the target for miR-148a-3p. MiR-148a-3p mimic and siWnt1 suppressed the cell viability, invasion, and odontoblastic differentiation of hDPSCs and inhibited the Wnt1, β-catenin, DSPP, DMP-1, RUNX2, OCN, and Smad4 expressions. In contrast, miR-148a-3p inhibitor and overexpressed Wnt1 promoted the cell viability, invasion, and odontoblastic differentiation of hDPSCs, and upregulated the Wnt1, β-catenin, DSPP, DMP-1, RUNX2, OCN, and Smad4 expressions. Also, miR-148a-3p mimic and inhibitor reversed the effects of Wnt1 overexpression and siWnt1. Conclusions MiR-148a-3p modulated the invasion and odontoblastic differentiation of hDPSCs through the Wnt1/β-catenin pathway.
Collapse
Affiliation(s)
- Qiong Li
- Department of Oral and Maxillofacial Surgery, Jingmen NO.1 People's Hospital, Jingmen, China
| | - Lei Huang
- Department of Oral and Maxillofacial Surgery, Jingmen NO.1 People's Hospital, Jingmen, China
| |
Collapse
|
7
|
Li B, Ouchi T, Cao Y, Zhao Z, Men Y. Dental-Derived Mesenchymal Stem Cells: State of the Art. Front Cell Dev Biol 2021; 9:654559. [PMID: 34239870 PMCID: PMC8258348 DOI: 10.3389/fcell.2021.654559] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Accepted: 04/29/2021] [Indexed: 12/11/2022] Open
Abstract
Mesenchymal stem cells (MSCs) could be identified in mammalian teeth. Currently, dental-derived MSCs (DMSCs) has become a collective term for all the MSCs isolated from dental pulp, periodontal ligament, dental follicle, apical papilla, and even gingiva. These DMSCs possess similar multipotent potential as bone marrow-derived MSCs, including differentiation into cells that have the characteristics of odontoblasts, cementoblasts, osteoblasts, chondrocytes, myocytes, epithelial cells, neural cells, hepatocytes, and adipocytes. Besides, DMSCs also have powerful immunomodulatory functions, which enable them to orchestrate the surrounding immune microenvironment. These properties enable DMSCs to have a promising approach in injury repair, tissue regeneration, and treatment of various diseases. This review outlines the most recent advances in DMSCs' functions and applications and enlightens how these advances are paving the path for DMSC-based therapies.
Collapse
Affiliation(s)
- Bo Li
- State Key Laboratory of Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, China
- National Clinical Research Center for Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, China
- Department of Orthodontics, West China School of Stomatology, Sichuan University, Chengdu, China
| | - Takehito Ouchi
- Department of Dentistry and Oral Surgery, School of Medicine, Keio University, Tokyo, Japan
- Department of Physiology, Tokyo Dental College, Tokyo, Japan
| | - Yubin Cao
- State Key Laboratory of Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, China
- National Clinical Research Center for Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, China
- Department of Head and Neck Oncology, West China School of Stomatology, Sichuan University, Chengdu, China
| | - Zhihe Zhao
- State Key Laboratory of Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, China
- National Clinical Research Center for Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, China
- Department of Orthodontics, West China School of Stomatology, Sichuan University, Chengdu, China
| | - Yi Men
- State Key Laboratory of Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, China
- National Clinical Research Center for Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, China
- Department of Head and Neck Oncology, West China School of Stomatology, Sichuan University, Chengdu, China
| |
Collapse
|
8
|
Wan K, Tu Z, Liu Z, Cai Y, Chen Y, Ling C. Upregulated osteoprotegerin expression promotes lung cancer cell invasion by increasing miR-20a expression. Exp Ther Med 2021; 22:846. [PMID: 34149892 PMCID: PMC8210324 DOI: 10.3892/etm.2021.10278] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Accepted: 04/06/2021] [Indexed: 12/20/2022] Open
Abstract
Osteoprotegerin (OPG) is a member of the tumor necrosis factor receptor superfamily and a major regulatory factor in osteoclast development. OPG has been previously associated with the malignant behavior of various types of cancer, particularly that of cancer metastasis. However, information on the link between the expression profile of OPG and lung cancer metastasis remained elusive. In the present study, the expression levels of OPG in the serum samples of patients with non-small cell lung cancer (NSCLC) was measured using ELISA. The expression of miRNAs was assessed using reverse transcription-quantitative PCR. A549 or H3122 cell invasion was assessed using Transwell invasion assays. The effect of OPG on the invasiveness of lung cancer cells was evaluated using an experimental mouse lung metastasis model. OPG expression was found to be upregulated in the serum of patients with NSCLC compared with that in healthy individuals. The serum levels of OPG in patients with distant metastasis were observably higher compared with those in patients without metastasis. Functionally, overexpression of OPG in NSCLC cells markedly promoted cell invasion. Mechanistically, increased expression of OPG resulted in upregulation of microRNA (miR)-20a in NSCLC cells. Furthermore, miR-20a promoted NSCLC cell invasion, whilst miR-20a inhibition partially abrogated the effect of OPG on NSCLC cell invasion. Taken together, the present results demonstrated that the OPG/miR-20a axis serve an important role in lung cancer metastasis, which potentially provide an additional novel target for lung cancer treatment.
Collapse
Affiliation(s)
- Ke Wan
- Department of Respiratory Diseases, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215000, P.R. China.,Department of Thoracic Oncology, Jiangxi Cancer Hospital, Nanchang, Jiangxi 330029, P.R. China
| | - Ziwei Tu
- Department of Radiation Oncology, Jiangxi Cancer Hospital, Nanchang, Jiangxi 330029, P.R. China
| | - Zhentian Liu
- Department of Thoracic Oncology, Jiangxi Cancer Hospital, Nanchang, Jiangxi 330029, P.R. China
| | - Yun Cai
- Department of Thoracic Oncology, Jiangxi Cancer Hospital, Nanchang, Jiangxi 330029, P.R. China
| | - Yinglan Chen
- Department of Thoracic Oncology, Jiangxi Cancer Hospital, Nanchang, Jiangxi 330029, P.R. China
| | - Chunhua Ling
- Department of Respiratory Diseases, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215000, P.R. China
| |
Collapse
|
9
|
Yin JY, Luo XH, Feng WQ, Miao SH, Ning TT, Lei Q, Jiang T, Ma DD. Multidifferentiation potential of dental-derived stem cells. World J Stem Cells 2021; 13:342-365. [PMID: 34136070 PMCID: PMC8176842 DOI: 10.4252/wjsc.v13.i5.342] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 03/10/2021] [Accepted: 04/05/2021] [Indexed: 02/06/2023] Open
Abstract
Tooth-related diseases and tooth loss are widespread and are a major public health issue. The loss of teeth can affect chewing, speech, appearance and even psychology. Therefore, the science of tooth regeneration has emerged, and attention has focused on tooth regeneration based on the principles of tooth development and stem cells combined with tissue engineering technology. As undifferentiated stem cells in normal tooth tissues, dental mesenchymal stem cells (DMSCs), which are a desirable source of autologous stem cells, play a significant role in tooth regeneration. Researchers hope to reconstruct the complete tooth tissues with normal functions and vascularization by utilizing the odontogenic differentiation potential of DMSCs. Moreover, DMSCs also have the ability to differentiate towards cells of other tissue types due to their multipotency. This review focuses on the multipotential capacity of DMSCs to differentiate into various tissues, such as bone, cartilage, tendon, vessels, neural tissues, muscle-like tissues, hepatic-like tissues, eye tissues and glands and the influence of various regulatory factors, such as non-coding RNAs, signaling pathways, inflammation, aging and exosomes, on the odontogenic/osteogenic differentiation of DMSCs in tooth regeneration. The application of DMSCs in regenerative medicine and tissue engineering will be improved if the differentiation characteristics of DMSCs can be fully utilized, and the factors that regulate their differentiation can be well controlled.
Collapse
Affiliation(s)
- Jing-Yao Yin
- Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, Guangdong Province, China
| | - Xing-Hong Luo
- Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, Guangdong Province, China
| | - Wei-Qing Feng
- Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, Guangdong Province, China
| | - Sheng-Hong Miao
- Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, Guangdong Province, China
| | - Ting-Ting Ning
- Department of Endodontics, Stomatological Hospital, Southern Medical University, Guangzhou 510280, Guangdong Province, China
| | - Qian Lei
- Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, Guangdong Province, China
| | - Tao Jiang
- Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, Guangdong Province, China
| | - Dan-Dan Ma
- Department of Endodontics, Stomatological Hospital, Southern Medical University, Guangzhou 510280, Guangdong Province, China
| |
Collapse
|
10
|
Shen Z, Silva RM. MicroRNAs: emerging players in apical periodontitis. J Appl Oral Sci 2021; 29:e20201058. [PMID: 33886945 PMCID: PMC8054647 DOI: 10.1590/1678-7757-2020-1058] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Accepted: 01/20/2021] [Indexed: 12/13/2022] Open
Abstract
Apical periodontitis is an inflammatory disorder of periradicular tissues developed from endodontic infections. Understanding its pathophysiology and the underlying molecular mechanisms is key to the advancement of endodontics. MicroRNAs (miRNAs), a group of evolutionarily conserved small non-coding RNAs, may be phenotypically and functionally associated with the pathogenesis of apical periodontitis. Several studies have focused on the role of miRNAs in the pulp and periradicular biology, and they have demonstrated their essential functions, such as initiating odontogenic differentiation and promoting pro- or anti-inflammatory responses in pulpitis. Up to date, over 2,000 miRNAs have been discovered in humans; however, only few have been reported to associate with apical periodontitis. Therefore, identifying miRNAs involved in diseased apical tissues and conducting functional studies are important in expanding our current knowledge of pulp and periradicular biology and exploring novel therapeutic avenues. In this review, we revisit current models of apical periodontitis and miRNA biogenesis, analyze existing evidence of the involvement of miRNAs in diseased apical tissues, and discuss their diverse functions and potential values. Based on their sheer abundance, prolonged stability in biofluid, and relative ease of sampling, miRNAs may be a useful tool to be developed as diagnostic biomarkers for apical periodontitis. Furthermore, it can be used as therapeutic targets in conjunction with conventional endodontic therapies.
Collapse
Affiliation(s)
- Zhen Shen
- The University of Texas Health Science Center at Houston, Department of Endodontics, Houston, TX, United States
| | - Renato Menezes Silva
- The University of Texas Health Science Center at Houston, Department of Endodontics, Houston, TX, United States.,The University of Texas Health Science Center at Houston, Center for Craniofacial Research, Houston, TX, United States
| |
Collapse
|
11
|
Zou J, Du J, Tu H, Chen H, Cong K, Bi Z, Sun J. Resveratrol benefits the lineage commitment of bone marrow mesenchymal stem cells into osteoblasts via miR-320c by targeting Runx2. J Tissue Eng Regen Med 2021; 15:347-360. [PMID: 33481337 DOI: 10.1002/term.3176] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Accepted: 01/09/2021] [Indexed: 11/07/2022]
Abstract
Bone marrow mesenchymal stem cells (BMSCs) are a potential source of osteoblasts and have been widely used in clinical therapies due to their pluripotency. Recent publications have found that resveratrol (RSVL) played a crucial role in the proliferation and differentiation of BMSCs; however, the underlying molecular mechanism of RSVL-induced BMSCs osteogenic differentiation needs to be fully elucidated. The objective of this study was to explore functions of miRNAs in the RSVL-treated BMSCs and its effects on the differentiation potentials of BMSCs. The findings demonstrated that RSVL enhanced the osteogenesis and suppressed the adipogenesis of BMSCs in a dose-dependent manner. Besides, a novel regulatory axis containing miR-320c, and its target Runx2 was found during the differentiation process of BMSCs under RSVL treatment. Increase of miR-320c reduced the osteogenic potential of BMSCs, while knockdown of miR-320c played a positive role in the osteogenesis of BMSCs. In contrast, overexpression of miR-320c accelerated the adipogenic differentiation, while knockdown of miR-320c restrained the adipogenic differentiation of BMSCs. The results confirmed that Runx2 might be the direct target of miR-320c in RSVL-promoted osteogenic differentiation of BMSCs. This study revealed that RSVL might be used for the treatment of bone loss related diseases and miR-320c could be regarded as a novel and potential target to regulate the biological functions of BMSCs.
Collapse
Affiliation(s)
- Jilong Zou
- Department of Orthopaedics, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Jianyang Du
- Department of Neurosurgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Hualei Tu
- Department of Burn, The Fifth Hospital in Harbin, Harbin, China
| | - Hongjun Chen
- Department of Orthopaedics, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Kai Cong
- Department of Orthopaedics, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Zhenggang Bi
- Department of Orthopaedics, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Jiabing Sun
- Department of Orthopaedics, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| |
Collapse
|
12
|
Gaus S, Li H, Li S, Wang Q, Kottek T, Hahnel S, Liu X, Deng Y, Ziebolz D, Haak R, Schmalz G, Liu L, Savkovic V, Lethaus B. Shared Genetic and Epigenetic Mechanisms between the Osteogenic Differentiation of Dental Pulp Stem Cells and Bone Marrow Stem Cells. BIOMED RESEARCH INTERNATIONAL 2021; 2021:6697810. [PMID: 33628811 PMCID: PMC7884974 DOI: 10.1155/2021/6697810] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Revised: 01/04/2021] [Accepted: 01/20/2021] [Indexed: 02/06/2023]
Abstract
OBJECTIVE To identify the shared genetic and epigenetic mechanisms between the osteogenic differentiation of dental pulp stem cells (DPSC) and bone marrow stem cells (BMSC). MATERIALS AND METHODS The profiling datasets of miRNA expression in the osteogenic differentiation of mesenchymal stem cells from the dental pulp (DPSC) and bone marrow (BMSC) were searched in the Gene Expression Omnibus (GEO) database. The differential expression analysis was performed to identify differentially expressed miRNAs (DEmiRNAs) dysregulated in DPSC and BMSC osteodifferentiation. The target genes of the DEmiRNAs that were dysregulated in DPSC and BMSC osteodifferentiation were identified, followed by the identification of the signaling pathways and biological processes (BPs) of these target genes. Accordingly, the DEmiRNA-transcription factor (TFs) network and the DEmiRNAs-small molecular drug network involved in the DPSC and BMSC osteodifferentiation were constructed. RESULTS 16 dysregulated DEmiRNAs were found to be overlapped in the DPSC and BMSC osteodifferentiation, including 8 DEmiRNAs with a common expression pattern (8 upregulated DEmiRNAs (miR-101-3p, miR-143-3p, miR-145-3p/5p, miR-19a-3p, miR-34c-5p, miR-3607-3p, miR-378e, miR-671-3p, and miR-671-5p) and 1 downregulated DEmiRNA (miR-671-3p/5p)), as well as 8 DEmiRNAs with a different expression pattern (i.e., miR-1273g-3p, miR-146a-5p, miR-146b-5p, miR-337-3p, miR-382-3p, miR-4508, miR-4516, and miR-6087). Several signaling pathways (TNF, mTOR, Hippo, neutrophin, and pathways regulating pluripotency of stem cells), transcription factors (RUNX1, FOXA1, HIF1A, and MYC), and small molecule drugs (curcumin, docosahexaenoic acid (DHA), vitamin D3, arsenic trioxide, 5-fluorouracil (5-FU), and naringin) were identified as common regulators of both the DPSC and BMSC osteodifferentiation. CONCLUSION Common genetic and epigenetic mechanisms are involved in the osteodifferentiation of DPSCs and BMSCs.
Collapse
Affiliation(s)
- Sebastian Gaus
- Department of Cranio Maxillofacial Surgery, University Clinic Leipzig, Liebigstr. 12, Leipzig 04103, Germany
| | - Hanluo Li
- Department of Cranio Maxillofacial Surgery, University Clinic Leipzig, Liebigstr. 12, Leipzig 04103, Germany
| | - Simin Li
- Department of Cariology, Endodontology and Periodontology, University Leipzig, Liebigstr. 12, Leipzig 04103, Germany
| | - Qian Wang
- Department of Central Laboratory, Taian Central Hospital, Longtan Road No. 29, Taian, 271000 Shandong Province, China
| | - Tina Kottek
- Department of Cranio Maxillofacial Surgery, University Clinic Leipzig, Liebigstr. 12, Leipzig 04103, Germany
| | - Sebastian Hahnel
- Department of Cranio Maxillofacial Surgery, University Clinic Leipzig, Liebigstr. 12, Leipzig 04103, Germany
| | - Xiangqiong Liu
- Department of Molecular Cell Biology, Beijing Tibetan Hospital, China Tibetology Research Center, 218 Anwaixiaoguanbeili Street, Chaoyang, Beijing 100029, China
| | - Yupei Deng
- Department of Molecular Cell Biology, Beijing Tibetan Hospital, China Tibetology Research Center, 218 Anwaixiaoguanbeili Street, Chaoyang, Beijing 100029, China
| | - Dirk Ziebolz
- Department of Cariology, Endodontology and Periodontology, University Leipzig, Liebigstr. 12, Leipzig 04103, Germany
| | - Rainer Haak
- Department of Cariology, Endodontology and Periodontology, University Leipzig, Liebigstr. 12, Leipzig 04103, Germany
| | - Gerhard Schmalz
- Department of Cariology, Endodontology and Periodontology, University Leipzig, Liebigstr. 12, Leipzig 04103, Germany
| | - Lei Liu
- Department of Neurology, Shandong Provincial Third Hospital, Cheeloo Chollege of Medicine, Shandong University, Jinan, 100191 Shandong Province, China
| | - Vuk Savkovic
- Department of Cranio Maxillofacial Surgery, University Clinic Leipzig, Liebigstr. 12, Leipzig 04103, Germany
| | - Bernd Lethaus
- Department of Cranio Maxillofacial Surgery, University Clinic Leipzig, Liebigstr. 12, Leipzig 04103, Germany
| |
Collapse
|
13
|
Epigenetic Regulation of Dental Pulp Stem Cell Fate. Stem Cells Int 2020; 2020:8876265. [PMID: 33149742 PMCID: PMC7603635 DOI: 10.1155/2020/8876265] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Revised: 09/21/2020] [Accepted: 09/24/2020] [Indexed: 02/05/2023] Open
Abstract
Epigenetic regulation, mainly involving DNA methylation, histone modification, and noncoding RNAs, affects gene expression without modifying the primary DNA sequence and modulates cell fate. Mesenchymal stem cells derived from dental pulp, also called dental pulp stem cells (DPSCs), exhibit multipotent differentiation capacity and can promote various biological processes, including odontogenesis, osteogenesis, angiogenesis, myogenesis, and chondrogenesis. Over the past decades, increased attention has been attracted by the use of DPSCs in the field of regenerative medicine. According to a series of studies, epigenetic regulation is essential for DPSCs to differentiate into specialized cells. In this review, we summarize the mechanisms involved in the epigenetic regulation of the fate of DPSCs.
Collapse
|
14
|
Yang C, Jia R, Zuo Q, Zheng Y, Wu Q, Luo B, Lin P, Yin L. microRNA-143-3p regulates odontogenic differentiation of human dental pulp stem cells through regulation of the osteoprotegerin-RANK ligand pathway by targeting RANK. Exp Physiol 2020; 105:876-885. [PMID: 32052500 DOI: 10.1113/ep087992] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Accepted: 02/10/2020] [Indexed: 12/12/2022]
Abstract
NEW FINDINGS What is the central question of this study? What is the role of miR-143-3p during human dental pulp stem cell (hDPSC) differentiation. What is the main finding and its importance? miR-143-3p negatively regulates receptor activator of nuclear factor-κB (RANK). RANK ligand (RANKL) binds to RANK and stimulates the development of osteoclasts. Osteoprotegerin (OPG) inhibits the interaction between RANK and RANKL. The OPG-RANKL signalling pathway regulates odontogenic differentiation of hDPSCs. ABSTRACT Human dental pulp stem cells (hDPSCs) are capable of differentiating into odontoblast-like cells, which secrete reparative dentin after injury, in which the role of microRNA-143-3p (miR-143-3p) has been identified. Therefore, we investigated the mechanism by which miR-143-3p influences odontoblastic differentiation of hDPSCs. The relationship between miR-143-3p and receptor activator of nuclear factor-κB (RANK) was initially identified by bioinformatics prediction and further verified by dual luciferase reporter gene assay. Gain- and loss-of-function analysis with miR-143-3p mimic and miR-143-3p inhibitor was subsequently conducted. Dentin sialophosphoprotein (DSPP), bone sialoprotein (BSP), alkaline phosphatase (ALP), osteocalcin (OCN) and osteopontin (OPN) mRNA levels were then evaluated by RT-qPCR. Osteoprotegerin (OPG), RANK ligand (RANKL), nuclear factor-κB (NF-κB) p65 protein levels and the extent of NF-κB p65 phosphorylation were examined by western blot analysis. Alizarin red staining was performed to assess the mineralization of hDPSCs. Cell apoptosis and cell cycle distribution were determined using flow cytometry. During odontoblastic differentiation of hDPSC, miR-143-3p had high expression, but RANK expression was low. miR-143-3p was found to target RANK, and its inhibition enhanced mineralization and hDPSC apoptosis, while blocking cell cycle entry. At the same time, miR-143-3p inhibition elevated the extent of NF-κB p65 phosphorylation, as well as the expression of RANK, RANKL, DSPP, BSP, ALP, OCN and OPN, while decreasing the OPG level. Silencing RANK had opposite effects on these markers. miR-143-3p regulates odontoblastic differentiation of hDPSCs via the OPG-RANKL pathway that targets RANK. The elucidation of the mechanisms of odontogenic differentiation of hDPSCs may contribute to the development of effective dental pulp repair therapies for the clinical setting.
Collapse
Affiliation(s)
- Changwei Yang
- Department of Prosthodontics, Stomatological Hospital of Xiamen Medical College & Xiamen Key Laboratory of Stomatological Disease Diagnosis and Treatment, Xiamen, 361008, P.R. China.,China & Fujian College Engineering Research Center for Dental Biomaterials, Xiamen, 361023, P.R. China
| | - Ru Jia
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an, 710004, P.R. China.,Department of Prosthodontics, College of Stomatology, Xi'an Jiaotong University, Xi'an, 710004, P.R. China
| | - Qiliang Zuo
- Department of Prosthodontics, Stomatological Hospital of Xiamen Medical College & Xiamen Key Laboratory of Stomatological Disease Diagnosis and Treatment, Xiamen, 361008, P.R. China.,China & Fujian College Engineering Research Center for Dental Biomaterials, Xiamen, 361023, P.R. China
| | - Yanfen Zheng
- China & Fujian College Engineering Research Center for Dental Biomaterials, Xiamen, 361023, P.R. China.,Department of Mucous Membrane, Stomatological Hospital of Xiamen Medical College & Xiamen Key Laboratory of Stomatological Disease Diagnosis and Treatment, Xiamen, 361008, P.R. China
| | - Qianju Wu
- Department of Prosthodontics, Stomatological Hospital of Xiamen Medical College & Xiamen Key Laboratory of Stomatological Disease Diagnosis and Treatment, Xiamen, 361008, P.R. China.,China & Fujian College Engineering Research Center for Dental Biomaterials, Xiamen, 361023, P.R. China
| | - Bizhu Luo
- Department of Prosthodontics, Stomatological Hospital of Xiamen Medical College & Xiamen Key Laboratory of Stomatological Disease Diagnosis and Treatment, Xiamen, 361008, P.R. China.,China & Fujian College Engineering Research Center for Dental Biomaterials, Xiamen, 361023, P.R. China
| | - Pingting Lin
- Department of Prosthodontics, Stomatological Hospital of Xiamen Medical College & Xiamen Key Laboratory of Stomatological Disease Diagnosis and Treatment, Xiamen, 361008, P.R. China.,China & Fujian College Engineering Research Center for Dental Biomaterials, Xiamen, 361023, P.R. China
| | - Lu Yin
- Department of Prosthodontics, Stomatological Hospital of Xiamen Medical College & Xiamen Key Laboratory of Stomatological Disease Diagnosis and Treatment, Xiamen, 361008, P.R. China.,China & Fujian College Engineering Research Center for Dental Biomaterials, Xiamen, 361023, P.R. China
| |
Collapse
|
15
|
Shi X, Mao J, Liu Y. Pulp stem cells derived from human permanent and deciduous teeth: Biological characteristics and therapeutic applications. Stem Cells Transl Med 2020; 9:445-464. [PMID: 31943813 PMCID: PMC7103623 DOI: 10.1002/sctm.19-0398] [Citation(s) in RCA: 119] [Impact Index Per Article: 29.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Accepted: 12/27/2019] [Indexed: 12/13/2022] Open
Abstract
Human pulp stem cells (PSCs) include dental pulp stem cells (DPSCs) isolated from dental pulp tissues of human extracted permanent teeth and stem cells from human exfoliated deciduous teeth (SHED). Depending on their multipotency and sensitivity to local paracrine activity, DPSCs and SHED exert therapeutic applications at multiple levels beyond the scope of the stomatognathic system. This review is specifically concentrated on PSC-updated biological characteristics and their promising therapeutic applications in (pre)clinical practice. Biologically, distinguished from conventional mesenchymal stem cell markers in vitro, NG2, Gli1, and Celsr1 have been evidenced as PSC markers in vivo. Both perivascular cells and glial cells account for PSC origin. Therapeutically, endodontic regeneration is where PSCs hold the most promises, attributable of PSCs' robust angiogenic, neurogenic, and odontogenic capabilities. More recently, the interplay between cell homing and liberated growth factors from dentin matrix has endowed a novel approach for pulp-dentin complex regeneration. In addition, PSC transplantation for extraoral tissue repair and regeneration has achieved immense progress, following their multipotential differentiation and paracrine mechanism. Accordingly, PSC banking is undergoing extensively with the intent of advancing tissue engineering, disease remodeling, and (pre)clinical treatments.
Collapse
Affiliation(s)
- Xin Shi
- Center of Stomatology, Tongji Hospital of Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanPeople's Republic of China
| | - Jing Mao
- Center of Stomatology, Tongji Hospital of Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanPeople's Republic of China
| | - Yan Liu
- Laboratory of Biomimetic Nanomaterials, Department of OrthodonticsPeking University School and Hospital of StomatologyBeijingPeople's Republic of China
| |
Collapse
|
16
|
Interference of miR-212 and miR-384 promotes osteogenic differentiation via targeting RUNX2 in osteoporosis. Exp Mol Pathol 2020; 113:104366. [DOI: 10.1016/j.yexmp.2019.104366] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Revised: 12/04/2019] [Accepted: 12/28/2019] [Indexed: 12/11/2022]
|
17
|
Tian S, Liu Y, Dong F, Dou Y, Li W, Wang J. Knockdown of microRNA-584 promotes dental pulp stem cells proliferation by targeting TAZ. Cell Cycle 2020; 19:1048-1058. [PMID: 32208890 DOI: 10.1080/15384101.2020.1744976] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Proliferation of dental pulp stem cells (DPSCs) is crucial in tooth development and damage repairing, also includes its therapy application for tissue engineering. MicroRNAs (miRNAs) are key players in biological processes of DPSCs, and transcriptional co-activator with PDZ-binding motif (TAZ) also plays important roles in cell proliferation and differentiation, however, the roles of miR-584 and TAZ in DPSCs are not known. We found up-regulated miR-584 expression and down-regulated TAZ expression levels in aging dental pulp tissue compare to those in young dental pulp tissue. In proliferating DPSCs we demonstrated the decreased miR-584 expression and increased TAZ expression. miR-584 mimics suppressed DPSCs proliferation and migration, and significantly reduced TAZ production, whereas miR-584 inhibition exerted the converse effects. Knocking down of the TAZ in DPSCs had a similar effect as overexpression of miR-584. Furthermore, luciferase reporter assay demonstrated that miR-584 could directly bind to the TAZ mRNA 3'UTR to repress its translation. Overexpression of TAZ can partly rescue miR-584 mimic-mediated the inhibition of proliferation. Additionally, miR-584 inhibited cell proliferation and downregulated expression of cell cycle proteins by AKT signaling pathway. Together, we identified that miR-584 may be a key regulator in the proliferation of DPSCs by regulating TAZ expression via AKT signaling pathway. It would be a promising biomarker and therapeutic target for pulp disease.
Collapse
Affiliation(s)
- Songbo Tian
- Department of Oral Pathology, College of Stomatology, Hebei Medical University, Shijiazhuang, China.,Department of Oral Medicine, The Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - Yanping Liu
- Physical Examination Center, The Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - Fusheng Dong
- Department of Oral and Maxillofacial Surgery, College of Stomatology, Hebei Medical University, Shijiazhuang, China
| | - Yongqing Dou
- College of Integrated Chinese and Western Medicine, Hebei University of Chinese Medicine, Shijiazhuang, China
| | - Wenjing Li
- Department of Oral Medicine, The Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - Jie Wang
- Department of Oral Pathology, College of Stomatology, Hebei Medical University, Shijiazhuang, China
| |
Collapse
|
18
|
Chen Z, Zhang K, Qiu W, Luo Y, Pan Y, Li J, Yang Y, Wu B, Fang F. Genome-wide identification of long noncoding RNAs and their competing endogenous RNA networks involved in the odontogenic differentiation of human dental pulp stem cells. Stem Cell Res Ther 2020; 11:114. [PMID: 32169113 PMCID: PMC7071724 DOI: 10.1186/s13287-020-01622-w] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Revised: 02/03/2020] [Accepted: 02/26/2020] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Long noncoding RNAs (lncRNAs) play an important role in the multiple differentiations of mesenchymal stem cells (MSCs). However, few studies have focused on the regulatory mechanism of lncRNAs in the odontogenic differentiation of human dental pulp stem cells (hDPSCs). METHODS hDPSCs were induced to differentiate into odontoblasts in vitro, and the expression profiles of lncRNAs, microRNAs (miRNAs), and messenger RNAs (mRNAs) in differentiated and undifferentiated cells were obtained by microarray. Bioinformatics analyses including Gene Ontology (GO) analysis, pathway analysis, and binding site prediction were performed for functional annotation of lncRNA. miRNA/odontogenesis-related gene networks and lncRNA-associated ceRNA networks were constructed. Quantitative reverse-transcription polymerase chain reaction (qRT-PCR) was used to verify the expression of selected genes. RNA fluorescence in situ hybridization (FISH), qRT-PCR, and western blot analysis were used to explore the location and function of lncRNA-G043225. Dual-luciferase reporter assay was performed to confirm the binding sites of miR-588 with G043225 and Fibrillin 1 (FBN1). RESULTS We identified 132 lncRNAs, 114 miRNAs, and 172 mRNAs were differentially expressed. GO analysis demonstrated that regulation of the neurogenic locus notch homolog (Notch), Wnt, and epidermal growth factor receptor (ERBB) signaling pathways and activation of mitogen-activated protein kinase (MAPK) activity were related to odontogenic differentiation. Pathway analysis indicated that the most significant pathway was the forkhead box O (FoxO) signaling pathway, which is related to odontogenic differentiation. Two odontogenesis-related gene-centered lncRNA-associated ceRNA networks were successfully constructed. The qRT-PCR validation results were consistent with the microarray analysis. G043225 mainly locating in cytoplasm was proved to promote the odontogenic differentiation of hDPSCs via miR-588 and FBN1. CONCLUSION This is the first study revealing lncRNA-associated ceRNA network during odontogenic differentiation of hDPSCs using microarray, and it could provide clues to explore the mechanism of action at the RNA-RNA level as well as novel treatments for dentin regeneration based on stem cells.
Collapse
Affiliation(s)
- Zhao Chen
- Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, People's Republic of China
| | - Kaiying Zhang
- Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, People's Republic of China
| | - Wei Qiu
- Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, People's Republic of China
| | - Yifei Luo
- Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, People's Republic of China
| | - Yuhua Pan
- Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, People's Republic of China
| | - Jianjia Li
- Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, People's Republic of China
| | - Yeqing Yang
- Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, People's Republic of China
| | - Buling Wu
- Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, People's Republic of China. .,College of Stomatology, Southern Medical University, Guangzhou, 510515, Guangdong, People's Republic of China.
| | - Fuchun Fang
- Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, People's Republic of China. .,College of Stomatology, Southern Medical University, Guangzhou, 510515, Guangdong, People's Republic of China.
| |
Collapse
|
19
|
Gao Y, You X, Liu Y, Gao F, Zhang Y, Yang J, Yang C. Induction of autophagy protects human dental pulp cells from lipopolysaccharide-induced pyroptotic cell death. Exp Ther Med 2020; 19:2202-2210. [PMID: 32104285 PMCID: PMC7027320 DOI: 10.3892/etm.2020.8475] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2019] [Accepted: 11/01/2019] [Indexed: 02/06/2023] Open
Abstract
The NOD-like receptor protein 3/caspase-1 inflammasome can be activated in human dental pulp tissue and fibroblasts; however, the underlying mechanisms are poorly understood. In the present study, lipopolysaccharide (LPS) was used to treat dental pulp cells to establish an inflammation model. Cell viability was examined by sulforhodamine B assay. Interleukin (IL)-1β, caspase-1, microtubule-associated protein-1 light chain 3-II/I and p62 were determined by western blotting and ELISA. The phosphorylation (p-) levels of NF-κB and NF-κB inhibitor (IκB)α protein were observed by western blotting. The results demonstrated that LPS induced pyroptotic cell death in cultured dental pulp cells, which was supported by the increased levels of IL-1β, IL-18 and caspase-1. Rapamycin and 3-methyladenine (3-MA) were used to activate and inhibit autophagy, and it was observed that LPS increased autophagy and rapamycin reduced LPS-induced dental pulp cell pyroptosis. However, 3-MA aggravated LPS-induced dental pulp cell pyroptosis. In addition, LPS inhibited the expression of IκBα, but increased the expression of p-NF-κB. Compared with the LPS group, 3-MA further inhibited the expression of IκBα but promoted the expression of p-NF-κB. However, rapamycin produced the opposite results to LPS. Under LPS treatment, the NF-κB pathway inhibitor BAY11-7082 further enhanced the inhibitory effects of rapamycin, but inhibited the promoting effects of 3-MA on the protein expression levels of IL-1β and caspase-1. The results of the present study demonstrated that there is an important crosstalk between autophagy, pyroptosis and the NF-κB pathway, and that the modulation of pyroptosis in dental pulp cells may be a promising strategy to pulpitis therapy.
Collapse
Affiliation(s)
- Yang Gao
- Jiangsu Key Laboratory of Oral Disease, The Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China.,Department of Oral and Maxillofacial Surgery, The Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China.,Department of Stomatology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215000, P.R. China
| | - Xinran You
- Department of Nuclear Medicine, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, Jiangsu 215002, P.R. China
| | - Yubo Liu
- Department of Orthopedics, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, Jiangsu 215002, P.R. China
| | - Fei Gao
- Department of Nuclear Medicine, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, Jiangsu 215002, P.R. China
| | - Yuan Zhang
- Department of Head and Neck Oncology, The Affiliated Jiangsu Cancer Hospital of Nanjing Medical University, Nanjing, Jiangsu 210009, P.R. China
| | - Jianrong Yang
- Jiangsu Key Laboratory of Oral Disease, The Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China.,Department of Oral and Maxillofacial Surgery, The Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Chen Yang
- Department of Nuclear Medicine, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, Jiangsu 215002, P.R. China
| |
Collapse
|
20
|
Liu Z, Xu S, Dao J, Gan Z, Zeng X. Differential expression of lncRNA/miRNA/mRNA and their related functional networks during the osteogenic/odontogenic differentiation of dental pulp stem cells. J Cell Physiol 2019; 235:3350-3361. [PMID: 31549394 DOI: 10.1002/jcp.29223] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Accepted: 09/03/2019] [Indexed: 12/30/2022]
Abstract
Dentin-pulp regeneration requires dental pulp stem cells (DPSCs), but the role of long noncoding RNAs (lncRNAs) during this process remains unclear. Here, we cultured human DPSCs in osteogenic/odontogenic medium for 14 days and analyzed cells via RNA-sequencing. The data were validated by quantitative reverse transcription-polymerase chain reaction and lncRNA-microRNA (miRNA)-messenger RNA (mRNA) networks were constructed to reveal the potential competing endogenous RNA regulatory role of lncRNAs. Kyoto Encyclopedia of Genes and Genomes and Gene Ontology enrichment analysis were performed. One lncRNA, SNHG7, was identified and validated by genetic shRNA silencing. A total of 89 lncRNAs, 1,636 mRNAs, and 113 miRNAs were differentially expressed after differentiation. Bioinformatics identified an array of affected signaling pathways including phosphoinositide-3-kinase-protein kinase B, transforming growth factor-β, and Wnt. mRNAs were enriched in cell migration, cell differentiation, stem cell development, ossification, and skeletal development. One lncRNA, SNHG7, was indentified to inhibit the odonto/osteogenic differentiation of DPSCs when silenced. In summary, we reveal several lncRNAs that significantly change during DPSC differentiation, including SNHG7. This reveals new targets for dentin-pulp complex regeneration and tissue engineering.
Collapse
Affiliation(s)
- Zhongjun Liu
- Department of Endodontics, Stomatological Hospital, Southern Medical University, Guangzhou, China
| | - Shuaimei Xu
- Department of Endodontics, Stomatological Hospital, Southern Medical University, Guangzhou, China.,Department of Immunology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Junfeng Dao
- Department of Prosthodontics, Stomatological Hospital, Southern Medical University, Guangzhou, China
| | - Zekun Gan
- Department of Periodontology and Implantology, Stomatological Hospital, Southern Medical University, Guangzhou, China
| | - Xiongqun Zeng
- Department of Endodontics, Stomatological Hospital, Southern Medical University, Guangzhou, China
| |
Collapse
|
21
|
Fang F, Zhang K, Chen Z, Wu B. Noncoding RNAs: new insights into the odontogenic differentiation of dental tissue-derived mesenchymal stem cells. Stem Cell Res Ther 2019; 10:297. [PMID: 31547871 PMCID: PMC6757432 DOI: 10.1186/s13287-019-1411-x] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2019] [Revised: 08/28/2019] [Accepted: 09/05/2019] [Indexed: 12/11/2022] Open
Abstract
Odontoblasts are cells that contribute to the formation of the dental pulp complex. The differentiation of dental tissue-derived mesenchymal stem cells into odontoblasts comprises many factors and signaling pathways. Noncoding RNAs (ncRNAs), comprising a substantial part of poly-A tail mature RNAs, are considered “transcriptional noise.” Emerging evidence has shown that ncRNAs have key functions in the differentiation of mesenchymal stem cells. In this review, we discussed two major types of ncRNAs, including microRNAs (miRNAs) and long noncoding RNAs (lncRNAs), in terms of their role in the odontogenic differentiation of dental tissue-derived stem cells. Recent findings have demonstrated important functions for miRNAs and lncRNAs in odontogenic differentiation. It is expected that ncRNAs will become promising therapeutic targets for dentin regeneration based on stem cells.
Collapse
Affiliation(s)
- Fuchun Fang
- Department of Stomatology, Nanfang Hospital, Southern Medical University, 1838 Guangzhou Avenue North, Guangzhou, 510515, Guangdong, People's Republic of China.,College of Stomatology, Southern Medical University, 1838 GuangZhou Avenue North, Guangzhou, 510515, Guangdong, People's Republic of China
| | - Kaiying Zhang
- Department of Stomatology, Nanfang Hospital, Southern Medical University, 1838 Guangzhou Avenue North, Guangzhou, 510515, Guangdong, People's Republic of China
| | - Zhao Chen
- Department of Stomatology, Nanfang Hospital, Southern Medical University, 1838 Guangzhou Avenue North, Guangzhou, 510515, Guangdong, People's Republic of China
| | - Buling Wu
- Department of Stomatology, Nanfang Hospital, Southern Medical University, 1838 Guangzhou Avenue North, Guangzhou, 510515, Guangdong, People's Republic of China. .,College of Stomatology, Southern Medical University, 1838 GuangZhou Avenue North, Guangzhou, 510515, Guangdong, People's Republic of China.
| |
Collapse
|
22
|
Abstract
Los odontoblastos son células post-mitóticas de origen mesenquimal dispuestas en forma de palizada en la periferia de la pulpa dental y responsables de la formación de la dentina. Los odontoblastos derivan de la cresta neural y su diferenciación es la consecuencia de las interacciones epitelio-mesénquima entre las células de la papila dental y el epitelio dental interno. Este trabajo tiene como objetivo revisar los aspectos fisiológicos y patológicos de los odontoblastos, comprendiendo su origen, mecanismos de diferenciación y propiedades funcionales. Se realizó una búsqueda electrónica de literatura desde el año 2000 hasta Febrero de 2018, seleccionando 2889 artículos, de los cuales 52 artículos fueron analizados y discutidos. Los resultados exponen el origen, etapas y los factores relacionados con la diferenciación odontoblástica, junto con los aspectos principales de la organización estructural y funciones que desempeñan los odontoblastos. Esta revisión demuestra mediante la evidencia científica actual como los estudios concernientes a los odontoblastos se focalizan en comprender los mecanismos en la formación de la dentina reparativa, la respuesta inmunitaria y su rol en los procesos de inflamación y dolor. Trabajos futuros deberán esclarecer las diferentes señales involucradas en los procesos fisiopatológicos celulares y moleculares llevados a cabo por los odontoblastos.
Collapse
|
23
|
Ding Q, Gao J, Zheng J, Wang A, Jing S. Astragaloside IV attenuates inflammatory injury and promotes odontoblastic differentiation in lipopolysaccharide-stimulated MDPC-23 cells and rat pulpitis. J Oral Pathol Med 2019; 48:951-958. [PMID: 31318999 DOI: 10.1111/jop.12926] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Revised: 06/14/2019] [Accepted: 07/05/2019] [Indexed: 12/21/2022]
Abstract
BACKGROUND Astragaloside IV (AS-IV), a natural herbal compound from Astragalus membranaceus, has inhibitory effects on receptor activator of nuclear factor-κB ligand (RANKL)-induced osteoclastogenesis, and RANKL signal helps to regulate odontoblast differentiation. However, whether and how AS-IV affects odontoblastic differentiation remains unclear. METHODS Lipopolysaccharide (LPS)-stimulated MDPC-23 cells and rat pulpitis were treated with AS-IV, cell viability, and LDH leakage was analyzed by CCK-8 assay and LDH Leakage assay. The production of TNF-α and IL-6 was determined by ELISA and qRT-PCR assay. The expression of alkaline phosphatase (ALP) was detected using an ALP assay kit, and the expression of dentin sialophos-phoprotein (DSPP), dentin matrix protein-1 (DMP1), basic fibroblast growth factor (FGF2), and phosphorylated extracellular signal-regulated kinase (p-ERK) was determined by western blot. RESULTS AS-IV dose dependently increased in cell viability and decreased the overproduction of TNF-α and IL-6 in LPS-stimulated MDPC-23 cells. AS-IV also counteracted LPS-induced downregulation of ALP, DSPP, and DMP1 in MDPC-23 cells. Furthermore, AS-IV significantly decreased the expression of FGF2 and p-ERK in LPS-stimulated MDPC-23 cells. More important, the addition of FGF2 partly neutralized AS-IV-mediated inhibition of FGF2/ERK signaling, abolished AS-IV-induced reduction of TNF-α and IL-6, and counteracted AS-IV-induced upregulation of DSPP and DMP-1 in these cells. Meanwhile, AS-IV inhibited the excessive production of TNF-α and IL-6, suppressed the downregulation of DSPP and DMP1, and disturbed the up-regulation of FGF2 and p-ERK in the pulp tissues of rat pulpitis model. CONCLUSIONS AS-IV exerted anti-inflammatory and pro-differentiation effects in LPS-stimulated MDPC-23 cells and rat pulpitis via inhibiting the FGF2/ERK signaling pathway.
Collapse
Affiliation(s)
- Qun Ding
- Department of Endodontics, Baoji Stomatological Hospital, Baoji, China
| | - Jinyu Gao
- Department of Orthodontics, Affiliated Stomatological Hospital of Yan'an University, Yan'an, China
| | - Jing Zheng
- Department of Endodontics, Baoji Stomatological Hospital, Baoji, China
| | - An Wang
- Department of Endodontics, Baoji Stomatological Hospital, Baoji, China
| | - Shuanrang Jing
- Department of Endodontics, Baoji Stomatological Hospital, Baoji, China
| |
Collapse
|
24
|
MicroRNA-143-5p targeting eEF2 gene mediates intervertebral disc degeneration through the AMPK signaling pathway. Arthritis Res Ther 2019; 21:97. [PMID: 30987676 PMCID: PMC6466769 DOI: 10.1186/s13075-019-1863-5] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Accepted: 03/11/2019] [Indexed: 11/10/2022] Open
Abstract
Background Intervertebral disc degeneration (IDD) is a major contributor to back, neck, and radicular pain, and the treatment of IDD is costly and relatively ineffective. Dysregulation of microRNAs (miRNAs) has been reported to be involved in IDD. The purpose of our study is to illustrate the potential that miR-143-5p targeting eEF2 gene mediates IDD. Methods Following the establishment of the IDD rat models, expression of miR-143-5p, eEF2, Bcl-2, Bax, AMPK, mTOR, cyclinD, COL2, ACAN, and DCN was detected. The NP cells isolated from degenerative intervertebral disc (IVD) were introduced with a series of mimic, inhibitor, or AICAR to explore the functional role of miR-143-5p in IDD and to characterize the relationship between miR-143-5p and eEF2. Cell viability, cell cycle, apoptosis, and senescence were also evaluated. Results A reduction in eEF2, an increase in miR-143-5p, and activation of the AMPK signaling pathway were observed in degenerative IVD. Moreover, increased senescent NP cells were observed in degenerative IVD. eEF2 was confirmed as a target gene of miR-143-5p. miR-143-5p was found to activate the AMPK signaling pathway. The restoration of miR-143-5p or the activation of AMPK signaling pathway decreased COL2, ACAN, and DCN expression, coupled with the inhibition of NP cell proliferation and differentiation, and promotion of NP apoptosis and senescence. On the contrary, the inhibition of miR-143-5p led to the reversed results. Conclusion The results demonstrated that the inhibition of miR-143-5p may act as a suppressor for the progression of IDD.
Collapse
|
25
|
Xu J, Yan S, Tan H, Ma L, Feng H, Han H, Pan M, Yu L, Fang C. The miR-143/145 cluster reverses the regulation effect of KLF5 in smooth muscle cells with proliferation and contractility in intracranial aneurysm. Gene 2018; 679:266-273. [DOI: 10.1016/j.gene.2018.09.010] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2018] [Revised: 08/21/2018] [Accepted: 09/06/2018] [Indexed: 11/15/2022]
|
26
|
Lei C, Xueming H, Ruihang D. MLN64 deletion suppresses RANKL-induced osteoclastic differentiation and attenuates diabetic osteoporosis in streptozotocin (STZ)-induced mice. Biochem Biophys Res Commun 2018; 505:1228-1235. [DOI: 10.1016/j.bbrc.2018.10.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Accepted: 10/01/2018] [Indexed: 02/06/2023]
|
27
|
Kearney M, Cooper PR, Smith AJ, Duncan HF. Epigenetic Approaches to the Treatment of Dental Pulp Inflammation and Repair: Opportunities and Obstacles. Front Genet 2018; 9:311. [PMID: 30131827 PMCID: PMC6090030 DOI: 10.3389/fgene.2018.00311] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Accepted: 07/23/2018] [Indexed: 12/12/2022] Open
Abstract
Concerns over the cost and destructive nature of dental treatment have led to the call for novel minimally invasive, biologically based restorative solutions. For patients with toothache, this has resulted in a shift from invasive root-canal-treatment (RCT) toward more conservative vital-pulp-treatment (VPT) procedures, aimed to protect the pulp and harness its natural regenerative capacity. If the dental pulp is exposed, as long as the infection and inflammation can be controlled, conservative therapies can promote the formation of new tertiary dentine in a stem cell-led reparative process. Crucially, the volume and quality of new dentine is dependent on the material applied; however, currently available dental-materials are limited by non-specific action, cytotoxicity and poor clinical handling. Looking to the future, an improved understanding of the cellular regulators of pulpal inflammation and associated repair mechanisms is critical to predict pulpal responses and devise novel treatment strategies. Epigenetic modifications of DNA-associated proteins and the influences of non-coding RNAs have been demonstrated to control the self-renewal of stem cell populations as well as regulate mineralised tissue development and repair. Notably, the stability of microRNAs and their relative ease of sampling from pulpal blood highlight their potential for application as diagnostic inflammatory biomarkers, while increased understanding of their actions will not only enhance our knowledge of pulpal disease and repair, but also identify novel molecular targets. The potential therapeutic application of epigenetic modifying agents, DNA-methyltransferase-inhibitors (DNMTi) and histone-deacetylase-inhibitors (HDACi), have been shown to promote mineralisation and repair processes in dental-pulp-cell (DPC) populations as well as induce the release of bioactive dentine-matrix-components. Consequently, HDACis and DNMTis have the potential to enhance tertiary dentinogenesis by influencing the cellular and tissue processes at low concentrations with minimal side effects, providing an opportunity to develop a topically placed, inexpensive bio-inductive restorative material. The aim of this review is to highlight the potential role of epigenetic approaches in the treatment of the damaged dental pulp, considering the opportunities and obstacles, such as off-target effects, delivery mechanisms, for the therapeutic use of miRNA as an inflammatory biomarker or molecular target, before discussing the application of HDACi and DNMTi to the damaged pulp to stimulate repair.
Collapse
Affiliation(s)
- Michaela Kearney
- Division of Restorative Dentistry & Periodontology, Dublin Dental University Hospital, Trinity College Dublin, University of Dublin, Dublin, Ireland
| | - Paul R. Cooper
- Oral Biology, School of Dentistry, College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom
| | - Anthony J. Smith
- Oral Biology, School of Dentistry, College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom
| | - Henry F. Duncan
- Division of Restorative Dentistry & Periodontology, Dublin Dental University Hospital, Trinity College Dublin, University of Dublin, Dublin, Ireland
| |
Collapse
|
28
|
Zhang C, Zhang Y, Feng Z, Zhang F, Liu Z, Sun X, Ruan M, Liu M, Jin S. Therapeutic effect of dental pulp stem cell transplantation on a rat model of radioactivity-induced esophageal injury. Cell Death Dis 2018; 9:738. [PMID: 29970894 PMCID: PMC6030227 DOI: 10.1038/s41419-018-0753-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Revised: 05/09/2018] [Accepted: 05/22/2018] [Indexed: 01/14/2023]
Abstract
Dental pulp stem cell (DPSC) transplantation has been demonstrated to promote the regeneration and repair of tissues and organs and is a potentially effective treatment for radioactive esophageal injury. In this study, to explore the therapeutic effects of DPSCs on acute radiation-induced esophageal injury, DPSCs were cultured and transplanted into rats with acute radioactive esophageal injuries induced by radioactive 125I seeds in vivo. In the injured esophagus, PKH26-labeled DPSCs co-localized with PCNA, CK14, CD71, and integrin α6, and the expression levels of these four makers of esophageal stem cells were significantly increased. After DPSC transplantation, the injured esophagus exhibited a greater thickness. In addition, the esophageal function and inflammation recovered faster. The results demonstrated that transplanted DPSCs, which trans-differentiated into esophageal stem cells in vivo, could repair the damaged esophageal tissue.
Collapse
Affiliation(s)
- Chunwei Zhang
- Department of Gastrointestinal and Hepatology, The Second Affiliated Hospital, Harbin Medical University, Heilongjiang, Harbin, China
| | - Yichi Zhang
- Department of Gastrointestinal and Hepatology, The Second Affiliated Hospital, Harbin Medical University, Heilongjiang, Harbin, China
| | - Zhenning Feng
- Department of Gastrointestinal and Hepatology, The Second Affiliated Hospital, Harbin Medical University, Heilongjiang, Harbin, China
| | - Feifei Zhang
- Department of Gastrointestinal and Hepatology, The Second Affiliated Hospital, Harbin Medical University, Heilongjiang, Harbin, China
| | - Zishuai Liu
- Department of Gastrointestinal and Hepatology, The Second Affiliated Hospital, Harbin Medical University, Heilongjiang, Harbin, China
| | - Xiaoli Sun
- Department of Gastrointestinal and Hepatology, The Second Affiliated Hospital, Harbin Medical University, Heilongjiang, Harbin, China
| | - Mengting Ruan
- Department of Gastrointestinal and Hepatology, The Second Affiliated Hospital, Harbin Medical University, Heilongjiang, Harbin, China
| | - Mingna Liu
- Department of Gastrointestinal and Hepatology, The Second Affiliated Hospital, Harbin Medical University, Heilongjiang, Harbin, China
| | - Shizhu Jin
- Department of Gastrointestinal and Hepatology, The Second Affiliated Hospital, Harbin Medical University, Heilongjiang, Harbin, China.
| |
Collapse
|
29
|
Zhang P, Yang W, Wang G, Li Y. miR-143 suppresses the osteogenic differentiation of dental pulp stem cells by inactivation of NF-κB signaling pathway via targeting TNF-α. Arch Oral Biol 2017; 87:172-179. [PMID: 29306073 DOI: 10.1016/j.archoralbio.2017.12.031] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Revised: 12/11/2017] [Accepted: 12/29/2017] [Indexed: 01/09/2023]
Abstract
BACKGROUND Dental pulp stem cells (DPSCs) are multipotent and play an important role in repairing damaged and/or defective dentinogenesis/osteogenesis. Recent studies have documented the implication of miR-143 in osteogenic differentiation of DPSCs. Nevertheless, the detailed mechanisms of miR-143 involved in the osteogenic differentiation of DPSCs remain to be further elaborated. METHODS Isolated DPSCs were incubated with osteogenic differentiation medium to induce osteogenic differentiation. qRT-PCR and western blot were performed to determine the expressions of miR-143 and tumor necrosis factor α (TNF-α). Luciferase reporter assay was used to confirm whether TNF-α was a target of miR-143. Osteogenic differentiation of DPSCs was evaluated by alkaline phosphatase (ALP) activity assay, ALP staining, and western blot analyses of osteogenic-markers including bone morphogenetic protein 2 (BMP2), ALP, runt-related transcription factor 2 (RUNX2) and collagen type I (COLI). RESULTS miR-143 was downregulated and TNF-α was upregulated during osteogenic differentiation of DPSCs. miR-143 posttranscriptionally regulated TNF-α expression in DPSCs by binding to its 3'UTR. miR-143 overexpression suppressed osteogenic differentiation of DPSCs, as demonstrated by the decrease of ALP activity, ALP positive cell ratio, as well as BMP2, ALP, RUNX2, and COLI expressions. Moreover, miR-143 reversed TNF-α-induced osteogenic differentiation of DPSCs. Finally, the osteogenic differentiation of DPSCs induced by miR-143 inhibitor was attenuated following inactivation of nuclear factor kappa B (NF-κB) signaling pathway. CONCLUSION miR-143 suppressed the osteogenic differentiation of DPSCs by blockade of NF-κB signaling pathway via targeting TNF-α.
Collapse
Affiliation(s)
- Peng Zhang
- Department of Prosthodontics, The First Affiliated Hospital & School of Stomatology, Zhengzhou University, No. 40 Daxue Road, Zhengzhou, 450052, China.
| | - Wenli Yang
- Department of Stomatology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Guofang Wang
- Department of Periodontology, The First Affiliated Hospital & School of Stomatology, Zhengzhou University, Zhengzhou, 450052, China
| | - Yajing Li
- Department of Periodontology, The First Affiliated Hospital & School of Stomatology, Zhengzhou University, Zhengzhou, 450052, China
| |
Collapse
|