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Dong S, Jia L, Sun S, Hao X, Feng X, Qiu Y, Gu K, Wen Y. TAZ reverses the inhibitory effects of LPS on the osteogenic differentiation of human periodontal ligament stem cells through the NF-κB signaling pathway. BMC Oral Health 2024; 24:733. [PMID: 38926705 PMCID: PMC11210133 DOI: 10.1186/s12903-024-04497-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Accepted: 06/17/2024] [Indexed: 06/28/2024] Open
Abstract
BACKGROUND Human periodontal ligament stem cells (hPDLSCs) are important candidate seed cells for periodontal tissue engineering, but the presence of lipopolysaccharide(LPS) in periodontal tissues inhibits the self-renewal and osteogenic differentiation of hPDLSCs. Our previous studies demonstrated that TAZ is a positive regulator of osteogenic differentiation of hPDLSCs, but whether TAZ can protect hPDLSCs from LPS is still unknown. The present study aimed to explore the regulatory effect of TAZ on the osteogenic differentiation of hPDLSCs in an LPS-induced inflammatory model, and to preliminarily reveal the molecular mechanisms related to the NF-κB signaling pathway. METHODS LPS was added to the culture medium of hPDLSCs. The influence of LPS on hPDLSC proliferation was analyzed by CCK-8 assays. The effects of LPS on hPDLSC osteogenic differentiation were detected by Alizarin Red staining, ALP staining, Western Blot and qRT-PCR analysis of osteogenesis-related genes. The effects of LPS on the osteogenic differentiation of hPDLSCs with TAZ overexpressed or knocked down via lentivirus were analyzed. NF-κB signaling in hPDLSCs was analyzed by Western Blot and immunofluorescence. RESULTS LPS inhibited the osteogenic differentiation of hPDLSCs, inhibited TAZ expression, and activated the NF-κB signaling pathway. Overexpressing TAZ in hPDLSCs partly reversed the negative effects of LPS on osteogenic differentiation and inhibited the activation of the NF-κB pathway by LPS. TAZ knockdown enhanced the inhibitory effects of LPS on osteogenesis. CONCLUSION Overexpressing TAZ could partly reverse the inhibitory effects of LPS on the osteogenic differentiation of hPDLSCs, possibly through inhibiting the NF-κB signaling pathway. TAZ is a potential target for improving hPDLSC-based periodontal tissue regeneration in inflammatory environments.
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Affiliation(s)
- Shuyi Dong
- School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Research Center of Dental Materials and Oral Tissue Regeneration, Jinan, Shandong, China
- Shandong Provincial Clinical Research Center for Oral Diseases, No.44-1 Wenhua Road West, Jinan, 250012, Shandong, China
| | - Linglu Jia
- School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Research Center of Dental Materials and Oral Tissue Regeneration, Jinan, Shandong, China
- Shandong Provincial Clinical Research Center for Oral Diseases, No.44-1 Wenhua Road West, Jinan, 250012, Shandong, China
| | - Shaoqing Sun
- School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Research Center of Dental Materials and Oral Tissue Regeneration, Jinan, Shandong, China
- Shandong Provincial Clinical Research Center for Oral Diseases, No.44-1 Wenhua Road West, Jinan, 250012, Shandong, China
| | - Xingyao Hao
- School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Research Center of Dental Materials and Oral Tissue Regeneration, Jinan, Shandong, China
- Shandong Provincial Clinical Research Center for Oral Diseases, No.44-1 Wenhua Road West, Jinan, 250012, Shandong, China
| | - Xiaomei Feng
- School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Research Center of Dental Materials and Oral Tissue Regeneration, Jinan, Shandong, China
- Shandong Provincial Clinical Research Center for Oral Diseases, No.44-1 Wenhua Road West, Jinan, 250012, Shandong, China
| | - Yunge Qiu
- School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Research Center of Dental Materials and Oral Tissue Regeneration, Jinan, Shandong, China
- Shandong Provincial Clinical Research Center for Oral Diseases, No.44-1 Wenhua Road West, Jinan, 250012, Shandong, China
| | - Ke Gu
- School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Research Center of Dental Materials and Oral Tissue Regeneration, Jinan, Shandong, China
- Shandong Provincial Clinical Research Center for Oral Diseases, No.44-1 Wenhua Road West, Jinan, 250012, Shandong, China
| | - Yong Wen
- School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China.
- Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Research Center of Dental Materials and Oral Tissue Regeneration, Jinan, Shandong, China.
- Shandong Provincial Clinical Research Center for Oral Diseases, No.44-1 Wenhua Road West, Jinan, 250012, Shandong, China.
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Ma J, Fan H, Geng H. Distinct and overlapping functions of YAP and TAZ in tooth development and periodontal homeostasis. Front Cell Dev Biol 2024; 11:1281250. [PMID: 38259513 PMCID: PMC10800899 DOI: 10.3389/fcell.2023.1281250] [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: 08/22/2023] [Accepted: 12/21/2023] [Indexed: 01/24/2024] Open
Abstract
Orthodontic tooth movement (OTM) involves mechanical-biochemical signal transduction, which results in tissue remodeling of the tooth-periodontium complex and the movement of orthodontic teeth. The dynamic regulation of osteogenesis and osteoclastogenesis serves as the biological basis for remodeling of the periodontium, and more importantly, the prerequisite for establishing periodontal homeostasis. Yes-associated protein (YAP) and transcriptional coactivator with PDZ-binding motif (TAZ) are key effectors of the Hippo signaling pathway, which actively respond to mechanical stimuli during tooth movement. Specifically, they participate in translating mechanical into biochemical signals, thereby regulating periodontal homeostasis, periodontal remodeling, and tooth development. YAP and TAZ have widely been considered as key factors to prevent dental dysplasia, accelerate orthodontic tooth movement, and shorten treatment time. In this review, we summarize the functions of YAP and TAZ in regulating tooth development and periodontal remodeling, with the aim to gain a better understanding of their mechanisms of action and provide insights into maintaining proper tooth development and establishing a healthy periodontal and alveolar bone environment. Our findings offer novel perspectives and directions for targeted clinical treatments. Moreover, considering the similarities and differences in the development, structure, and physiology between YAP and TAZ, these molecules may exhibit functional variations in specific regulatory processes. Hence, we pay special attention to their distinct roles in specific regulatory functions to gain a comprehensive and profound understanding of their contributions.
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Affiliation(s)
- Jing Ma
- Department of Oral Medicine, Weifang Medical University, Weifang, Shandong, China
| | - Haixia Fan
- Department of Oral Medicine, Jining Medical University, Jining, Shandong, China
| | - Haixia Geng
- Department of Orthodontics, Affiliated Hospital of Jining Medical University, Jining, Shandong, China
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3
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Čolić M, Miljuš N, Đokić J, Bekić M, Krivokuća A, Tomić S, Radojević D, Radanović M, Eraković M, Ismaili B, Škrbić R. Pomegranate Peel Extract Differently Modulates Gene Expression in Gingiva-Derived Mesenchymal Stromal Cells under Physiological and Inflammatory Conditions. Int J Mol Sci 2023; 24:15407. [PMID: 37895087 PMCID: PMC10607867 DOI: 10.3390/ijms242015407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Revised: 10/11/2023] [Accepted: 10/13/2023] [Indexed: 10/29/2023] Open
Abstract
Pomegranate has shown a favorable effect on gingivitis/periodontitis, but the mechanisms involved are poorly understood. The aim of this study was to test the effect of pomegranate peel extract (PoPEx) on gingiva-derived mesenchymal stromal cells (GMSCs) under physiological and inflammatory conditions. GMSC lines from healthy (H) and periodontitis (P) gingiva (n = 3 of each) were established. The lines were treated with two non-toxic concentrations of PoPEX (low-10; high-40 µg/mL), with or without additional lipopolysaccharide (LPS) stimulation. Twenty-four genes in GMSCs involved in different functions were examined using real-time polymerase chain reaction (RT-PCR). PoPEx (mostly at higher concentrations) inhibited the basal expression of IL-6, MCP-1, GRO-α, RANTES, IP-10, HIF-1α, SDF-1, and HGF but increased the expression of IL-8, TLR3, TGF-β, TGF-β/LAP ratio, IDO-1, and IGFB4 genes in H-GMSCs. PoPEx increased IL-6, RANTES, MMP3, and BMP2 but inhibited TLR2 and GRO-α gene expression in P-GMSCs. LPS upregulated genes for proinflammatory cytokines and chemokines, tissue regeneration/repair (MMP3, IGFBP4, HGF), and immunomodulation (IP-10, RANTES, IDO-1, TLR3, COX-2), more strongly in P-GMSCs. PoPEx also potentiated most genes' expression in LPS-stimulated P-GMSCs, including upregulation of osteoblastic genes (RUNX2, BMP2, COL1A1, and OPG), simultaneously inhibiting cell proliferation. In conclusion, the modulatory effects of PoPEx on gene expression in GMSCs are complex and dependent on applied concentrations, GMSC type, and LPS stimulation. Generally, the effect is more pronounced in inflammation-simulating conditions.
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Grants
- 451-03-68/2020-14/200019 Ministry of Education, Science and Technological Development, Republic of Serbia
- MFVMA/03/20-22 University of Defense in Belgrade, Medical Faculty of the Military Medical Academy, Belgrade, Serbia
- UIS/MFF: I.1.20-22 University of East Sarajevo, Medical Faculty Foča, Foča, Bosnia and Herzegovina
- N/A Medical Faculty Banja Luka, University of Banja Luka, Bosnia and Herzegovina
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Affiliation(s)
- Miodrag Čolić
- Serbian Academy of Sciences and Arts, 11000 Belgrade, Serbia
- Medical Faculty Foča, University of East Sarajevo, 73300 Foča, Bosnia and Herzegovina;
| | - Nataša Miljuš
- Faculty of Medicine, University of Banja Luka, 78000 Banja Luka, Bosnia and Herzegovina; (N.M.); (A.K.); (R.Š.)
| | - Jelena Đokić
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, 11042 Belgrade, Serbia; (J.Đ.); (D.R.)
| | - Marina Bekić
- Institute for the Application of Nuclear Energy, University of Belgrade, 11080 Belgrade, Serbia; (M.B.); (S.T.)
| | - Aleksandra Krivokuća
- Faculty of Medicine, University of Banja Luka, 78000 Banja Luka, Bosnia and Herzegovina; (N.M.); (A.K.); (R.Š.)
| | - Sergej Tomić
- Institute for the Application of Nuclear Energy, University of Belgrade, 11080 Belgrade, Serbia; (M.B.); (S.T.)
| | - Dušan Radojević
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, 11042 Belgrade, Serbia; (J.Đ.); (D.R.)
| | - Marina Radanović
- Medical Faculty Foča, University of East Sarajevo, 73300 Foča, Bosnia and Herzegovina;
| | - Mile Eraković
- Clinic for Stomatology, Medical Faculty of the Military Medical Academy, University of Defense, 11154 Belgrade, Serbia;
| | - Bashkim Ismaili
- Faculty of Dental Medicine, International Balkan University, 1000 Skopje, North Macedonia;
| | - Ranko Škrbić
- Faculty of Medicine, University of Banja Luka, 78000 Banja Luka, Bosnia and Herzegovina; (N.M.); (A.K.); (R.Š.)
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Yang S, Huang F, Zhang F, Sheng X, Fan W, Dissanayaka WL. Emerging Roles of YAP/TAZ in Tooth and Surrounding: from Development to Regeneration. Stem Cell Rev Rep 2023:10.1007/s12015-023-10551-z. [PMID: 37178226 DOI: 10.1007/s12015-023-10551-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/27/2023] [Indexed: 05/15/2023]
Abstract
Yes associated protein (YAP) and transcriptional coactivator with PDZ-binding motif (TAZ) are ubiquitous transcriptional co-activators that control organ development, homeostasis, and tissue regeneration. Current in vivo evidence suggests that YAP/TAZ regulates enamel knot formation during murine tooth development, and is indispensable for dental progenitor cell renewal to support constant incisor growth. Being a critical sensor for cellular mechano-transduction, YAP/TAZ lays at the center of the complex molecular network that integrates mechanical cues from the dental pulp chamber and surrounding periodontal tissue into biochemical signals, dictating in vitro cell proliferation, differentiation, stemness maintenance, and migration of dental stem cells. Moreover, YAP/TAZ-mediated cell-microenvironment interactions also display essential regulatory roles during biomaterial-guided dental tissue repair and engineering in some animal models. Here, we review recent advances in YAP/TAZ functions in tooth development, dental pulp, and periodontal physiology, as well as dental tissue regeneration. We also highlight several promising strategies that harness YAP/TAZ activation for promoting dental tissue regeneration.
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Affiliation(s)
- Shengyan Yang
- Applied Oral Sciences & Community Dental Care, Faculty of Dentistry, The University of Hong Kong, Hong Kong SAR, China
| | - Fang Huang
- Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Fuping Zhang
- Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Xinyue Sheng
- Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Wenguo Fan
- Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Waruna Lakmal Dissanayaka
- Applied Oral Sciences & Community Dental Care, Faculty of Dentistry, The University of Hong Kong, Hong Kong SAR, China.
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5
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Zhang Z, Li Y, Chen N, Li H, Chen S, Cui X, Shao H, Wei L, Ma J, Zhang S, Li X, Zhang X. Pertussis toxin-induced inhibition of Wnt/β-catenin signaling in dendritic cells promotes an autoimmune response in experimental autoimmune uveitis. J Neuroinflammation 2023; 20:24. [PMID: 36739434 PMCID: PMC9898909 DOI: 10.1186/s12974-023-02707-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Accepted: 01/27/2023] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Previous reports have indicated that disrupting the Wnt/β-catenin pathway in dendritic cells (DCs) may affect the progression of autoimmune inflammation; however, the factors and timing that regulate Wnt/β-catenin signaling have not been clearly understood. METHODS Experimental autoimmune uveitis (EAU) mice and Vogt-Koyanagi-Harada disease (VKH) patient samples were used to detect the expression of Wnt/β-catenin pathway genes. Western blot, real-time PCR, flow cytometry, and ELISA were performed to examine the expression of components of the Wnt/β-catenin pathway and inflammatory factors. DC-specific β-catenin knockout mice and 6-bromoindirubin-3'-oxime (BIO) administered mice were used to observe the effect of disrupting the Wnt pathway on EAU pathogenesis. RESULTS Wnt/β-catenin signaling was inhibited in DCs during the induction phase of EAU. The inhibition was mediated by pertussis toxin (PTX), which promoted DC maturation, in turn promoting pathogenic T cell proliferation and differentiation. In vivo experiments confirmed that deleting β-catenin in DCs enhanced EAU severity, and pre-injection of PTX advanced EAU onset. Administration of a Wnt activator (BIO) limited the effects of PTX, in turn ameliorating EAU. CONCLUSIONS Our results demonstrate that PTX plays a key role as a virulence factor in initiating autoimmune inflammation via DCs by inhibiting Wnt/β-catenin signaling in EAU, and highlight the potential mechanism by which infection can trigger apparent autoimmunity.
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Affiliation(s)
- Zhihui Zhang
- grid.412729.b0000 0004 1798 646XTianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, China
| | - Yongtao Li
- grid.412729.b0000 0004 1798 646XTianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, China
| | - Nu Chen
- grid.412729.b0000 0004 1798 646XTianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, China
| | - Huan Li
- grid.412729.b0000 0004 1798 646XTianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, China
| | - Shuang Chen
- grid.412729.b0000 0004 1798 646XTianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, China
| | - Xuexue Cui
- grid.412729.b0000 0004 1798 646XTianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, China
| | - Hui Shao
- grid.266623.50000 0001 2113 1622Department of Ophthalmology and Visual Sciences, Kentucky Lions Eye Center, University of Louisville, School of Medicine, Louisville, KY USA
| | - Lai Wei
- grid.12981.330000 0001 2360 039XState Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China
| | - Jianxing Ma
- grid.241167.70000 0001 2185 3318Department of Biochemistry, Wake Forest University School of Medicine, Winston-Salem, NC USA
| | - Song Zhang
- grid.216938.70000 0000 9878 7032Institute for Immunology and College of Life Sciences, Nankai University, Tianjin, China
| | - Xiaorong Li
- grid.412729.b0000 0004 1798 646XTianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, China
| | - Xiaomin Zhang
- grid.412729.b0000 0004 1798 646XTianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, China
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Jin S, Jiang H, Sun Y, Li F, Xia J, Li Y, Zheng J, Qin Y. Osteogenic differentiation of periodontal membrane stem cells in inflammatory environments. Open Life Sci 2022; 17:1240-1248. [PMID: 36213382 PMCID: PMC9490861 DOI: 10.1515/biol-2022-0474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 06/29/2022] [Accepted: 07/07/2022] [Indexed: 11/16/2022] Open
Abstract
Periodontitis is a common disease that is difficult to treat, and if not controlled in time, it causes severe conditions, such as alveolar bone resorption and tooth loosening and loss. Periodontal ligament stem cells constitute a promising cell source for regenerative treatment of periodontitis due to their high osteogenic differentiation capacity. PDLSC osteogenesis plays a central role in periodontal regeneration through successive cytokine-mediated signaling pathways and various biochemical and physicochemical factors. However, this process is inhibited in the inflammatory periodontitis environment due to high concentrations of lipopolysaccharide. Here, we review the mechanisms that influence the osteogenic differentiation of periodontal stem cells in this inflammatory microenvironment.
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Affiliation(s)
- Shenghao Jin
- Department of Periodontics, School of Stomatology, Xuzhou Medical University , Xuzhou , Jiangsu, 221000 , China
| | - Haitao Jiang
- Department of Periodontics, School of Stomatology, Xuzhou Medical University , Xuzhou , Jiangsu, 221000 , China
| | - Yue Sun
- Department of Periodontics, School of Stomatology, Xuzhou Medical University , Xuzhou , Jiangsu, 221000 , China
| | - Fang Li
- Department of Periodontics, School of Stomatology, Xuzhou Medical University , Xuzhou , Jiangsu, 221000 , China
| | - Jianglan Xia
- Department of Periodontics, School of Stomatology, Xuzhou Medical University , Xuzhou , Jiangsu, 221000 , China
| | - Yaxin Li
- Department of Periodontics, School of Stomatology, Xuzhou Medical University , Xuzhou , Jiangsu, 221000 , China
| | - Jiwei Zheng
- Department of Periodontics, School of Stomatology, Xuzhou Medical University , Xuzhou , Jiangsu, 221000 , China
- Department of Oral and Maxillofacial Surgery, Affiliated Hospital of Xuzhou Medical University , Xuzhou , Jiangsu, 221000 , China
| | - Ying Qin
- Department of Periodontics, School of Stomatology, Xuzhou Medical University , Xuzhou , Jiangsu, 221000 , China
- Department of Oral and Maxillofacial Surgery, Affiliated Hospital of Xuzhou Medical University , Xuzhou , Jiangsu, 221000 , China
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Kim H, Oh N, Kwon M, Kwon OH, Ku S, Seo J, Roh S. Exopolysaccharide of Enterococcus faecium L15 promotes the osteogenic differentiation of human dental pulp stem cells via p38 MAPK pathway. Stem Cell Res Ther 2022; 13:446. [PMID: 36056447 PMCID: PMC9440579 DOI: 10.1186/s13287-022-03151-0] [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: 05/04/2022] [Accepted: 08/19/2022] [Indexed: 11/16/2022] Open
Abstract
Background Bone has important functions in the body. Several researchers have reported that the polysaccharides and lipopolysaccharide derived from microbes can promote osteogenic differentiation of stem cells. Enterococcus faecium, a lactic acid bacterium (LAB), produces several bioactive metabolites and has been widely applied in the food and nutraceutical industries. The exopolysaccharide (EPS) from LAB has also been extensively examined for its postbiotic effects and for its in vivo and in vitro functionalities. However, studies on promoting bone differentiation using polysaccharides from LAB are lacking. Therefore, the purpose of this study was to investigate the effect of E. faecium L15 extract and EPS on osteogenic differentiation of human dental pulp stem cells (hDPSCs) and to identify the underlying mechanisms. Methods hDPSCs were obtained from dental pulp tissue, and L15 extract and EPS were isolated from L15. Gene and protein expression of the osteogenic differentiation markers were analyzed with qPCR and western blotting and the possible signaling pathways were also investigated using western blotting. Osteogenic differentiation potential was examined by alkaline phosphatase (ALP) staining and alizarin red s (ARS) staining. In addition, osteogenic differentiation potential of L15 EPS was explored in ex vivo culture of neonate murine calvaria. Results The calcium deposition and ALP activity were enhanced by addition of L15 extract or EPS. The expression levels of RUNX2, ALP, and COL1A1 mRNA and the protein expression levels of RUNX2, ALP, and BMP4 were increased in hDPSCs treated with the L15 extract or EPS. The L15 EPS treatment enhanced phosphorylation of the p38 mitogen-activated protein kinase (MAPK). The L15 EPS-induced increases in RUNX2, ALP, and BMP4 expression were suppressed by the p38 MAPK inhibitor SB203580. The promoting effect of L15 EPS on osteogenic differentiation was not only seen in hDPSCs, but also in osteoblast precursors. ALP activity and the expression of RUNX2, ALP, and COL1A1 increased in the L15 EPS-treated osteoblast precursors. In addition, L15 EPS increased bone thickness of neonate murine calvaria in ex vivo culture. Conclusions The stimulatory effect of L15 extract and EPS on osteogenic differentiation occurred through the p38 MAPK pathway, and L15 EPS enhanced new bone formation in neonate murine calvaria. These data suggest that L15 EPS has therapeutic potential applicable to bone regeneration. Supplementary Information The online version contains supplementary material available at 10.1186/s13287-022-03151-0.
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Affiliation(s)
- Hyewon Kim
- Cellular Reprogramming and Embryo Biotechnology Laboratory, Dental Research Institute, Seoul National University School of Dentistry, Seoul, 08826, Korea
| | - Naeun Oh
- Cellular Reprogramming and Embryo Biotechnology Laboratory, Dental Research Institute, Seoul National University School of Dentistry, Seoul, 08826, Korea
| | - Mijin Kwon
- Cellular Reprogramming and Embryo Biotechnology Laboratory, Dental Research Institute, Seoul National University School of Dentistry, Seoul, 08826, Korea
| | - Oh-Hee Kwon
- Biomedical Research Institute, NeoRegen Biotech Co., Ltd., Gyeonggi-do, 16641, Korea
| | - Seockmo Ku
- Fermentation Science Program, School of Agriculture, College of Basic and Applied Sciences, Middle Tennessee State University, Murfreesboro, TN, 37132, USA
| | - Jeongmin Seo
- Cellular Reprogramming and Embryo Biotechnology Laboratory, Dental Research Institute, Seoul National University School of Dentistry, Seoul, 08826, Korea. .,Biomedical Research Institute, NeoRegen Biotech Co., Ltd., Gyeonggi-do, 16641, Korea.
| | - Sangho Roh
- Cellular Reprogramming and Embryo Biotechnology Laboratory, Dental Research Institute, Seoul National University School of Dentistry, Seoul, 08826, Korea.
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8
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Iliopoulos JM, Layrolle P, Apatzidou DA. Microbial-stem cell interactions in periodontal disease. J Med Microbiol 2022; 71. [PMID: 35451943 DOI: 10.1099/jmm.0.001503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Periodontitis is initiated by hyper-inflammatory responses in the periodontal tissues that generate dysbiotic ecological changes within the microbial communities. As a result, supportive tissues of the tooth are damaged and periodontal attachment is lost. Gingival recession, formation of periodontal pockets with the presence of bleeding, and often suppuration and/or tooth mobility are evident upon clinical examination. These changes may ultimately lead to tooth loss. Mesenchymal stem cells (MSCs) are implicated in controlling periodontal disease progression and have been shown to play a key role in periodontal tissue homeostasis and regeneration. Evidence shows that MSCs interact with subgingival microorganisms and their by-products and modulate the activity of immune cells by either paracrine mechanisms or direct cell-to-cell contact. The aim of this review is to reveal the interactions that take place between microbes and in particular periodontal pathogens and MSCs in order to understand the factors and mechanisms that modulate the regenerative capacity of periodontal tissues and the ability of the host to defend against putative pathogens. The clinical implications of these interactions in terms of anti-inflammatory and paracrine responses of MSCs, anti-microbial properties and alterations in function including their regenerative potential are critically discussed based on literature findings. In addition, future directions to design periodontal research models and study ex vivo the microbial-stem cell interactions are introduced.
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Affiliation(s)
- Jordan M Iliopoulos
- School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Greece
| | - Pierre Layrolle
- INSERM, ToNIC, Pavillon Baudot, CHU Purpan, University of Toulouse, Toulouse, UMR 1214, France
| | - Danae A Apatzidou
- Department of Preventive Dentistry, Periodontology and Implant Biology, School of Dentistry, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
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Andrukhov O. Toll-Like Receptors and Dental Mesenchymal Stromal Cells. FRONTIERS IN ORAL HEALTH 2022; 2:648901. [PMID: 35048000 PMCID: PMC8757738 DOI: 10.3389/froh.2021.648901] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2021] [Accepted: 03/12/2021] [Indexed: 12/12/2022] Open
Abstract
Dental mesenchymal stromal cells (MSCs) are a promising tool for clinical application in and beyond dentistry. These cells possess multilineage differentiation potential and immunomodulatory properties. Due to their localization in the oral cavity, these cells could sometimes be exposed to different bacteria and viruses. Dental MSCs express various Toll-like receptors (TLRs), and therefore, they can recognize different microorganisms. The engagement of TLRs in dental MSCs by various ligands might change their properties and function. The differentiation capacity of dental MSCs might be either inhibited or enhanced by TLRs ligands depending on their nature and concentrations. Activation of TLR signaling in dental MSCs induces the production of proinflammatory mediators. Additionally, TLR ligands alter the immunomodulatory ability of dental MSCs, but this aspect is still poorly explored. Understanding the role of TLR signaling in dental MSCs physiology is essential to assess their role in oral homeostasis, inflammatory diseases, and tissue regeneration.
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Affiliation(s)
- Oleh Andrukhov
- Competence Center for Periodontal Research, University Clinic of Dentistry, Medical University of Vienna, Vienna, Austria
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10
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González-Quintanilla D, Abásolo N, Astudillo P. Wnt Signaling in Periodontal Disease. FRONTIERS IN DENTAL MEDICINE 2021. [DOI: 10.3389/fdmed.2021.763308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Periodontitis is a multifactorial and chronic condition associated with the formation of a dysbiotic biofilm, leading to a pro-inflammatory environment that can modulate cell signaling. The Wnt pathway plays fundamental roles during homeostasis and disease, and emerging evidence suggests its involvement in the maintenance of the periodontium and the development of periodontitis. Here, we summarize the role of the Wnt/β-catenin and non-canonical Wnt signaling pathways in periodontitis. The accumulated data suggests specific roles for each branch of the Wnt pathway. Wnt5a emerges as a critical player promoting periodontal ligament remodeling and impairing regenerative responses modulated by the Wnt/β-catenin pathway, such as alveolar bone formation. Collectively, the evidence suggests that achieving a proper balance between the Wnt/β-catenin and non-canonical pathways, rather than their independent modulation, might contribute to controlling the progression and severity of the periodontal disease.
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11
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Li C, Qi Y, Zhou Q, Huang X, Deng X, Yu Y, Shi LE. Betulinic acid promotes the osteogenic differentiation of human periodontal ligament stem cells by upregulating EGR1. Acta Biochim Biophys Sin (Shanghai) 2021; 53:1266-1276. [PMID: 34519779 DOI: 10.1093/abbs/gmab111] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2021] [Indexed: 12/22/2022] Open
Abstract
Periodontitis is one of the most common chronic inflammations of the oral cavity, which eventually leads to tooth loss. Betulinic acid (BetA) is an organic acid that has anti-inflammatory effects and is derived from fruits and plants, but its effect on the osteogenic differentiation of human periodontal ligament stem cells (hPDLSCs) is still unclear. This study aimed to explore the effect of BetA on the osteogenic differentiation of hPDLSCs and its mechanism. Our results revealed that BetA not only promoted the viability of hPDLSCs but also induced their osteogenic differentiation in a dose-dependent manner. In addition, RNA sequencing was used to screen the differentially expressed genes (DEGs) after hPDLSCs were treated with BetA, and 127 upregulated and 138 downregulated genes were identified. Gene Ontology enrichment analysis showed that DEGs were mainly involved in the response to lithium ions and the positive regulation of macrophage-derived foam cell differentiation. The Kyoto Encyclopedia of Genes and Genomes analysis results revealed that DEGs were enriched in the nuclear factor-κB and interleukin-17 signaling pathways. More importantly, we confirmed that early growth response gene 1 (EGR1), one of the three DEGs involved in bone formation, significantly promoted the expression of osteogenic markers and the mineralization of hPDLSCs. Knockdown of EGR1 obviously limited the effect of BetA on the osteogenic differentiation of hPDLSCs. In conclusion, BetA promoted the osteogenic differentiation of hPDLSCs through upregulating EGR1, and BetA might be a promising candidate in the clinical application of periodontal tissue regeneration.
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Affiliation(s)
- Cheng Li
- Department of Stomatology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
- Department of Stomatology, Jing’an District Institute of Dantal Diseases, Shanghai 200040, China
| | - Yuesun Qi
- Department of Stomatology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
- Department of Stomatology, Jinshan Hospital, Fudan University, Shanghai 200540, China
| | - Qin Zhou
- Department of Stomatology, Jing’an District Institute of Dantal Diseases, Shanghai 200040, China
| | - Xin Huang
- Department of Stomatology, Jing’an District Institute of Dantal Diseases, Shanghai 200040, China
| | - Xiaolin Deng
- Department of Stomatology, Jing’an District Institute of Dantal Diseases, Shanghai 200040, China
| | - Youcheng Yu
- Department of Stomatology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - L e Shi
- Department of Stomatology, Jing’an District Institute of Dantal Diseases, Shanghai 200040, China
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12
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Bonnet C, Brahmbhatt A, Deng SX, Zheng JJ. Wnt signaling activation: targets and therapeutic opportunities for stem cell therapy and regenerative medicine. RSC Chem Biol 2021; 2:1144-1157. [PMID: 34458828 PMCID: PMC8341040 DOI: 10.1039/d1cb00063b] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Accepted: 06/01/2021] [Indexed: 12/18/2022] Open
Abstract
Wnt proteins are secreted morphogens that play critical roles in embryonic development, stem cell proliferation, self-renewal, tissue regeneration and remodeling in adults. While aberrant Wnt signaling contributes to diseases such as cancer, activation of Wnt/β-catenin signaling is a target of interest in stem cell therapy and regenerative medicine. Recent high throughput screenings from chemical and biological libraries, combined with improved gene expression reporter assays of Wnt/β-catenin activation together with rational drug design, led to the development of a myriad of Wnt activators, with different mechanisms of actions. Among them, Wnt mimics, antibodies targeting Wnt inhibitors, glycogen-synthase-3β inhibitors, and indirubins and other natural product derivatives are emerging modalities to treat bone, neurodegenerative, eye, and metabolic disorders, as well as prevent ageing. Nevertheless, the creation of Wnt-based therapies has been hampered by challenges in developing potent and selective Wnt activators without off-target effects, such as oncogenesis. On the other hand, to avoid these risks, their use to promote ex vivo expansion during tissue engineering is a promising application.
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Affiliation(s)
- Clémence Bonnet
- Stein Eye Institute, University of California Los Angeles CA USA +1-3107947906 +1-3102062173
- INSERM, UMRS1138, Team 17, From Physiopathology of Ocular Diseases to Clinical Development, Paris University, Centre de Recherche des Cordeliers, and Cornea Departement, Cochin Hospital, AP-HP F-75014 Paris France
| | - Anvi Brahmbhatt
- Stein Eye Institute, University of California Los Angeles CA USA +1-3107947906 +1-3102062173
| | - Sophie X Deng
- Stein Eye Institute, University of California Los Angeles CA USA +1-3107947906 +1-3102062173
- Molecular Biology Institute, University of California Los Angeles CA USA
| | - Jie J Zheng
- Stein Eye Institute, University of California Los Angeles CA USA +1-3107947906 +1-3102062173
- Molecular Biology Institute, University of California Los Angeles CA USA
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13
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Li X, Zhang Y, Jia L, Xing Y, Zhao B, Sui L, Liu D, Xu X. Downregulation of Prolactin-Induced Protein Promotes Osteogenic Differentiation of Periodontal Ligament Stem Cells. Med Sci Monit 2021; 27:e930610. [PMID: 34092782 PMCID: PMC8194291 DOI: 10.12659/msm.930610] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Background Periodontal ligament stem cells (PDLSCs) are promising seed cells for bone tissue engineering and periodontal regeneration applications. However, the mechanism underlying the osteogenic differentiation process remains largely unknown. Previous reports showed that prolactin-induced protein (PIP) was upregulated after PDLSCs osteogenic induction. However, few studies have reported on the function of PIP in osteogenic differentiation. The purpose of the present study was to investigate the effect of PIP on osteogenic differentiation of PDLSCs. Material/Methods The expression pattern of PIP during PDLSCs osteogenic differentiation was detected and the effect of each component in the osteogenic induction medium on PIP was also tested by qRT-PCR. Then, the PIP knockdown cells were established using lentivirus. The knockdown efficiency was measured and the proliferation, apoptosis, and osteogenic differentiation ability were examined to determine the functional role of PIP on PDLSCs. Results QRT-PCR showed that PIP was sustainedly upregulated during the osteogenic induction process and the phenomenon was mainly caused by the stimulation of dexamethasone in the induction medium. CCK-8 and flow cytometer showed that knocking down PIP had no influence on proliferation and apoptosis of PDLSCs. ALP staining and activity, Alizarin Red staining, and western blot analysis demonstrated PIP knockdown enhanced the osteogenic differentiation and mineralization of PDLSCs. Conclusions PIP was upregulated after osteogenic induction; however, PIP knockdown promoted PDLSCs osteogenic differentiation. PIP might be a by-product of osteogenic induction, and downregulating of PIP might be a new target in bone tissue engineering applications.
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Affiliation(s)
- Xiaomeng Li
- School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University and Shandong Key Laboratory of Oral Tissue Regeneration and Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, Shandong, China (mainland).,Stomatological Hospital, Tianjin Medical University, Tianjin, China (mainland)
| | - Yunpeng Zhang
- School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University and Shandong Key Laboratory of Oral Tissue Regeneration and Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, Shandong, China (mainland).,Department of Oral Implantology, The Affiliated Stomatology Hospital of Kunming Medical University, Kunming, Yunnan, China (mainland)
| | - Linglu Jia
- School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University and Shandong Key Laboratory of Oral Tissue Regeneration and Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, Shandong, China (mainland)
| | - Yixiao Xing
- School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University and Shandong Key Laboratory of Oral Tissue Regeneration and Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, Shandong, China (mainland)
| | - Bin Zhao
- School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University and Shandong Key Laboratory of Oral Tissue Regeneration and Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, Shandong, China (mainland)
| | - Lei Sui
- Stomatological Hospital, Tianjin Medical University, Tianjin, China (mainland)
| | - Dayong Liu
- Stomatological Hospital, Tianjin Medical University, Tianjin, China (mainland)
| | - Xin Xu
- School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University and Shandong Key Laboratory of Oral Tissue Regeneration and Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, Shandong, China (mainland)
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14
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Ren M, Zhao Y, He Z, Lin J, Xu C, Liu F, Hu R, Deng H, Wang Y. Baicalein inhibits inflammatory response and promotes osteogenic activity in periodontal ligament cells challenged with lipopolysaccharides. BMC Complement Med Ther 2021; 21:43. [PMID: 33485352 PMCID: PMC7824944 DOI: 10.1186/s12906-021-03213-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Accepted: 01/10/2021] [Indexed: 12/13/2022] Open
Abstract
Background Periodontitis is a chronic infection initiated by oral bacterial and their virulence factors, yet the severity of periodontitis is largely determined by the dysregulated host immuno-inflammatory response. Baicalein is a flavonoid extracted from Scutellaria baicalensis with promising anti-inflammatory properties. This study aims to clarify the anti-inflammatory and osteogenic effects of baicalein in periodontal ligament cells (PDLCs) treated with lipopolysaccharides (LPS). Methods Human PDLCs were incubated with baicalein (0–100 μM) for 2 h prior to LPS challenge for 24 h. MTT analysis was adopted to assess the cytoxicity of baicalein. The mRNA and protein expression of inflammatory and osteogenic markers were measured by real-time polymerase chain reaction (PCR), western blot and enzyme-linked immunosorbent assay (ELISA) as appropriate. Alkaline phosphatase (ALP) and Alizarin red S (ARS) staining were performed to evaluate the osteogenic differentiation of PDLCs. The expression of Wnt/β-catenin and mitogen-activated protein kinase (MAPK) signaling related proteins was assessed by western blot. Results MTT results showed that baicalein up to 100 μM had no cytotoxicity on PDLCs. Baicalein significantly attenuated the inflammatory factors induced by LPS, including interleukin-1β (IL-1β), tumor necrosis factor-α (TNF-α), matrix metalloprotein-1 (MMP-1), MMP-2 and monocyte chemoattractant protein 1 (MCP-1) at both mRNA and protein level. Moreover, MAPK signaling (ERK, JNK and p38) was significantly inhibited by baicalein, which may account for the mitigated inflammatory response. Next, we found that baicalein effectively restored the osteogenic differentiation of LPS-treated PDLCs, as shown by the increased ALP and ARS staining. Accordingly, the protein and gene expression of osteogenic markers, namely runt-related transcription factor 2 (RUNX2), collagen-I, and osterix were markedly upregulated. Importantly, baicalein could function as the Wnt/β-catenin signaling activator, which may lead to the increased osteoblastic differentiation of PDLCs. Conclusions With the limitation of the study, we provide in vitro evidence that baicalein ameliorates inflammatory response and restores osteogenesis in PDLCs challenged with LPS, indicating its potential use as the host response modulator for the management of periodontitis. Supplementary Information The online version contains supplementary material available at 10.1186/s12906-021-03213-5.
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Affiliation(s)
- Manman Ren
- Department of Periodontics, School of Stomatology, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Ya Zhao
- Department of Periodontics, School of Stomatology, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Zhiqi He
- Department of Periodontics, School of Stomatology, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Jian Lin
- Department of Periodontics, School of Stomatology, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Chuchu Xu
- Department of Periodontics, School of Stomatology, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Fen Liu
- Department of Histology and Embryology, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Rongdang Hu
- Department of Orthodontics, School of Stomatology, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Hui Deng
- Department of Periodontics, School of Stomatology, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Yi Wang
- Department of Orthodontics, School of Stomatology, Wenzhou Medical University, Wenzhou, Zhejiang, China.
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15
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Heng BC, Zhang X, Aubel D, Bai Y, Li X, Wei Y, Fussenegger M, Deng X. Role of YAP/TAZ in Cell Lineage Fate Determination and Related Signaling Pathways. Front Cell Dev Biol 2020; 8:735. [PMID: 32850847 PMCID: PMC7406690 DOI: 10.3389/fcell.2020.00735] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Accepted: 07/15/2020] [Indexed: 12/11/2022] Open
Abstract
The penultimate effectors of the Hippo signaling pathways YAP and TAZ, are transcriptional co-activator proteins that play key roles in many diverse biological processes, ranging from cell proliferation, tumorigenesis, mechanosensing and cell lineage fate determination, to wound healing and regeneration. In this review, we discuss the regulatory mechanisms by which YAP/TAZ control stem/progenitor cell differentiation into the various major lineages that are of interest to tissue engineering and regenerative medicine applications. Of particular interest is the key role of YAP/TAZ in maintaining the delicate balance between quiescence, self-renewal, proliferation and differentiation of endogenous adult stem cells within various tissues/organs during early development, normal homeostasis and regeneration/healing. Finally, we will consider how increasing knowledge of YAP/TAZ signaling might influence the trajectory of future progress in regenerative medicine.
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Affiliation(s)
- Boon C. Heng
- Central Laboratory, Peking University School and Hospital of Stomatology, Beijing, China
- Faculty of Science and Technology, Sunway University, Subang Jaya, Malaysia
| | - Xuehui Zhang
- Department of Dental Materials & Dental Medical Devices Testing Center, Peking University School and Hospital of Stomatology, Beijing, China
- National Engineering Laboratory for Digital and Material Technology of Stomatology, NMPA Key Laboratory for Dental Materials, Beijing Laboratory of Biomedical Materials, Peking University School and Hospital of Stomatology, Beijing, China
| | - Dominique Aubel
- IUTA Department Genie Biologique, Universite Claude Bernard Lyon 1, Villeurbanne, France
| | - Yunyang Bai
- Department of Geriatric Dentistry, Peking University School and Hospital of Stomatology, Beijing, China
| | - Xiaochan Li
- Department of Geriatric Dentistry, Peking University School and Hospital of Stomatology, Beijing, China
| | - Yan Wei
- Department of Geriatric Dentistry, Peking University School and Hospital of Stomatology, Beijing, China
| | - Martin Fussenegger
- Department of Biosystems Science and Engineering, ETH-Zürich, Basel, Switzerland
| | - Xuliang Deng
- National Engineering Laboratory for Digital and Material Technology of Stomatology, NMPA Key Laboratory for Dental Materials, Beijing Laboratory of Biomedical Materials, Peking University School and Hospital of Stomatology, Beijing, China
- Department of Geriatric Dentistry, Peking University School and Hospital of Stomatology, Beijing, China
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16
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Shen YS, Chen XJ, Wuri SN, Yang F, Pang FX, Xu LL, He W, Wei QS. Polydatin improves osteogenic differentiation of human bone mesenchymal stem cells by stimulating TAZ expression via BMP2-Wnt/β-catenin signaling pathway. Stem Cell Res Ther 2020; 11:204. [PMID: 32460844 PMCID: PMC7251742 DOI: 10.1186/s13287-020-01705-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2019] [Revised: 04/21/2020] [Accepted: 05/05/2020] [Indexed: 02/06/2023] Open
Abstract
OBJECTIVES Polydatin (PD), extracted from Polygonum cuspidatum, has shown potential therapeutic applications due to its antiosteoporotic and anti-inflammatory activities. Our previous study suggested that PD promotes the osteogenesis of human bone marrow stromal cells (hBMSCs) via the BMP2-Wnt/β-catenin pathway. The aim of our present study was to further explore the role of PD-mediated regulation of Tafazzin (TAZ), a transcriptional coactivator with a PDZ-binding motif, in osteogenesis. MATERIALS AND METHODS hBMSCs were isolated and treated with PD at various concentrations. Alizarin red staining and RT-qPCR were performed to identify calcium complex deposition in hBMSCs as well as the expression of specific osteoblast-related markers, respectively, in each group. Next, TAZ-silenced hBMSCs were generated by lentivirus-produced TAZ shRNA. After treatment with PD, the osteogenic abilities of the TAZ-silenced and control hBMSCs were estimated by ALP activity assay, and expression of the TAZ protein was detected by Western blot analysis and immunofluorescence staining. In vitro, an ovariectomized (OVX) mouse model was established and used to evaluate the effect of PD on bone destruction by micro-CT, immunohistochemistry, and ELISA. RESULTS In vitro, 30 μM PD significantly improved the proliferation and calcium deposition of hBMSCs and markedly stimulated the expression of the mRNAs RUNX2, Osteopontin, DLX5, β-catenin, TAZ, and Osteocalcin (OCN). Osteogenic differentiation induced by PD was blocked by lentivirus-mediated TAZ shRNA. Furthermore, Noggin (a regulator of bone morphogenic protein 2 (BMP2)) and DKK1 (an inhibitor of the Wnt/β-catenin pathway) were found to inhibit the increase in TAZ expression induced by PD. In vivo, PD prevented estrogen deficiency-induced bone loss in the OVX mouse model. CONCLUSION Taken together, our findings suggest that PD improved the osteogenic differentiation of hBMSCs and maintained the bone matrix in the OVX mouse model through the activation of TAZ, a potential target gene of the BMP2-Wnt/β-catenin pathway.
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Affiliation(s)
- Ying-Shan Shen
- First Clinical Medical College, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Xiao-Jun Chen
- First Clinical Medical College, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Sha-Na Wuri
- First Clinical Medical College, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Fan Yang
- First Clinical Medical College, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Feng-Xiang Pang
- First Clinical Medical College, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Liang-Liang Xu
- Key Laboratory of Orthopaedics & Traumatology, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Wei He
- Hip Preserving Ward, No. 3 Orthopaedic Region, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
- No. 3 Orthopaedic Region and Institute of the Hip Joint, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Qiu-Shi Wei
- Hip Preserving Ward, No. 3 Orthopaedic Region, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China.
- No. 3 Orthopaedic Region and Institute of the Hip Joint, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China.
- Third Clinical Medical College, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China.
- The Third Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China.
- Institute of orthopedics of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China.
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17
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Wang P, Meng X, Li J, Chen Y, Zhang D, Zhong H, Xia P, Cui L, Zhu G, Wang H. Transcriptome profiling of avian pathogenic Escherichia coli and the mouse microvascular endothelial cell line bEnd.3 during interaction. PeerJ 2020; 8:e9172. [PMID: 32509459 PMCID: PMC7246031 DOI: 10.7717/peerj.9172] [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: 10/21/2019] [Accepted: 04/21/2020] [Indexed: 12/20/2022] Open
Abstract
Background Avian pathogenic Escherichia coli (APEC), an important extraintestinal pathogenic E. coli, causes colibacillosis, an acute and mostly systemic disease involving multiple organ lesions such as meningitis. Meningitis-causing APEC can invade the host central nervous system by crossing the blood–brain barrier (BBB), which is a critical step in the development of meningitis. However, the bacteria-host interaction mechanism in this process remains unclear. Methods In this study, we examined E. coli and bEnd.3 cells transcriptomes during infection and mock infection to investigate the global transcriptional changes in both organisms using RNA sequencing approach. Results When APEC infected the bEnd.3 cells, several significant changes in the expression of genes related to cell junctional complexes, extracellular matrix degradation, actin cytoskeleton rearrangement, immune activation and the inflammatory response in bEnd.3 cells were observed as compared to the mock infection group. Thus, the immune activation of bEnd.3 cells indicated that APEC infection activated host defenses. Furthermore, APEC may exploit cell junction degradation to invade the BBB. In addition, amino acid metabolism and energy metabolism related genes were downregulated and the protein export pathway related genes were upregulated in APEC cultured with bEnd.3 cells, compared to that in control. Thus, APEC may encounter starvation and express virulence factors during incubation with bEnd.3 cells. Conclusion This study provides a comprehensive overview of transcriptomic changes that occur during APEC infection of bEnd.3 cells, and offers insights into the bacterial invasion strategies and the subsequent host defense mechanism.
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Affiliation(s)
- Peili Wang
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, China
| | - Xia Meng
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, China
| | - Jianji Li
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, China
| | - Yanfei Chen
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, China
| | - Dong Zhang
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, China
| | - Haoran Zhong
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, China
| | - Pengpeng Xia
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, China
| | - Luying Cui
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, China
| | - Guoqiang Zhu
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, China
| | - Heng Wang
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, China
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18
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Blagodatski A, Klimenko A, Jia L, Katanaev VL. Small Molecule Wnt Pathway Modulators from Natural Sources: History, State of the Art and Perspectives. Cells 2020; 9:cells9030589. [PMID: 32131438 PMCID: PMC7140537 DOI: 10.3390/cells9030589] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Revised: 02/25/2020] [Accepted: 02/28/2020] [Indexed: 02/07/2023] Open
Abstract
The Wnt signaling is one of the major pathways known to regulate embryonic development, tissue renewal and regeneration in multicellular organisms. Dysregulations of the pathway are a common cause of several types of cancer and other diseases, such as osteoporosis and rheumatoid arthritis. This makes Wnt signaling an important therapeutic target. Small molecule activators and inhibitors of signaling pathways are important biomedical tools which allow one to harness signaling processes in the organism for therapeutic purposes in affordable and specific ways. Natural products are a well known source of biologically active small molecules with therapeutic potential. In this article, we provide an up-to-date overview of existing small molecule modulators of the Wnt pathway derived from natural products. In the first part of the review, we focus on Wnt pathway activators, which can be used for regenerative therapy in various tissues such as skin, bone, cartilage and the nervous system. The second part describes inhibitors of the pathway, which are desired agents for targeted therapies against different cancers. In each part, we pay specific attention to the mechanisms of action of the natural products, to the models on which they were investigated, and to the potential of different taxa to yield bioactive molecules capable of regulating the Wnt signaling.
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Affiliation(s)
- Artem Blagodatski
- School of Biomedicine, Far Eastern Federal University, Vladivostok 690090, Russia;
- Moscow Institute of Physics and Technology, Dolgoprudny 141701, Russia
- Correspondence: (A.B.); (V.L.K.)
| | - Antonina Klimenko
- School of Biomedicine, Far Eastern Federal University, Vladivostok 690090, Russia;
| | - Lee Jia
- Institute of Oceanography, Minjiang University, Fuzhou 350108, China;
- Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, Fuzhou University, Fuzhou 350108, China
| | - Vladimir L. Katanaev
- School of Biomedicine, Far Eastern Federal University, Vladivostok 690090, Russia;
- Institute of Oceanography, Minjiang University, Fuzhou 350108, China;
- Translational Research Center in Oncohaematology, Department of Cell Physiology and Metabolism, Faculty of Medicine, University of Geneva, 1211 Geneva, Switzerland
- Correspondence: (A.B.); (V.L.K.)
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19
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Zhao B, Zhang Y, Xiong Y, Xu X. Rutin promotes the formation and osteogenic differentiation of human periodontal ligament stem cell sheets in vitro. Int J Mol Med 2019; 44:2289-2297. [PMID: 31661130 PMCID: PMC6844602 DOI: 10.3892/ijmm.2019.4384] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Accepted: 10/15/2019] [Indexed: 02/07/2023] Open
Abstract
Cell sheet technology is a novel tissue engineering technology that has been rapidly developed in recent years. As a novel technology, cell sheet technology is expected to become one of the preferred methods for cell transplantation. The present study investigated the biological effects of rutin on the formation of periodontal ligament stem cell (PDLSC) sheets and their resultant osteogenic properties. The results of Cell Counting Kit-8 (CCK-8) assay demonstrated that a concentration of 1×10−6 mol/l rutin promoted the proliferation of PDLSCs more effectively compared with other designed concentrations. Rutin-modified cell sheets could be induced by complete medium supplemented with 20 µg/ml vitamin C (VC) and 1×10−6 mol/l rutin. Rutin-modified cell sheets appeared thicker and more compact compared with the VC-induced PDLSC sheets, demonstrating more layers of cells (3 or 4 layers), which secreted a richer extracellular matrix (ECM). Furthermore, the improved cell sheets exhibited varying degrees of increases in the mRNA and protein expression of collagen type I (COL1), alkaline phosphatase (ALP), runt-related transcription factor 2 (RUNX2) and osteopontin (OPN). Combined treatment with VC and rutin promoted the formation of PDLSC sheets and enhanced the osteogenic differentiation potential of the cell sheets. Therefore, rutin-modified cell sheets of PDLSCs are expected to play an important role in the treatment of periodontal tissue regeneration by stem cells.
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Affiliation(s)
- Bin Zhao
- School of Stomatology, Shandong University, Jinan, Shandong 250012, P.R. China
| | - Yunpeng Zhang
- School of Stomatology, Shandong University, Jinan, Shandong 250012, P.R. China
| | - Yixuan Xiong
- School of Stomatology, Shandong University, Jinan, Shandong 250012, P.R. China
| | - Xin Xu
- School of Stomatology, Shandong University, Jinan, Shandong 250012, P.R. China
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Silva-García O, Valdez-Alarcón JJ, Baizabal-Aguirre VM. Wnt/β-Catenin Signaling as a Molecular Target by Pathogenic Bacteria. Front Immunol 2019; 10:2135. [PMID: 31611869 PMCID: PMC6776594 DOI: 10.3389/fimmu.2019.02135] [Citation(s) in RCA: 79] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Accepted: 08/27/2019] [Indexed: 12/31/2022] Open
Abstract
The Wnt/β-catenin signaling pathway is crucial to regulate cell proliferation and polarity, cell determination, and tissue homeostasis. The activation of Wnt/β-catenin signaling is based on the interaction between Wnt glycoproteins and seven transmembrane receptors-Frizzled (Fzd). This binding promotes recruitment of the scaffolding protein Disheveled (Dvl), which results in the phosphorylation of the co-receptor LRP5/6. The resultant molecular complex Wnt-Fzd-LRP5/6-Dvl forms a structural region for Axin interaction that disrupts Axin-mediated phosphorylation/degradation of the transcriptional co-activator β-catenin, thereby allowing it to stabilize and accumulate in the nucleus where it activates the expression of Wnt-dependent genes. Due to the prominent physiological function, the Wnt/β-catenin signaling must be strictly controlled because its dysregulation, which is caused by different stimuli, may lead to alterations in cell proliferation, apoptosis, and inflammation-associated cancer. The virulence factors from pathogenic bacteria such as Salmonella enterica sv Typhimurium, Helicobacter pylori, Mycobacterium tuberculosis, Pseudomonas aeruginosa, Citrobacter rodentium, Clostridium difficile, Bacteroides fragilis, Escherichia coli, Haemophilus parasuis, Lawsonia intracellularis, Shigella dysenteriae, and Staphylococcus epidermidis employ a variety of molecular strategies to alter the appropriate functioning of diverse signaling pathways. Among these, Wnt/β-catenin has recently emerged as an important target of several virulence factors produced by bacteria. The mechanisms used by these factors to interfere with the activity of Wnt/β-catenin is diverse and include the repression of Wnt inhibitors' expression by the epigenetic modification of histones, blocking Wnt-Fzd ligand binding, activation or inhibition of β-catenin nuclear translocation, down- or up-regulation of Wnt family members, and inhibition of Axin-1 expression that promotes β-catenin activity. Such a variety of mechanisms illustrate an evolutionary co-adaptation of eukaryotic molecular signaling to a battery of soluble or structural components synthesized by pathogenic bacteria. This review gathers the recent efforts to elucidate the mechanistic details through which bacterial virulence factors modulate Wnt/β-catenin signaling and its physiological consequences concerning the inflammatory response and cancer.
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Affiliation(s)
| | - Juan J Valdez-Alarcón
- Centro Multidisciplinario de Estudios en Biotecnología, Facultad de Medicina Veterinaria y Zootecnia, Universidad Michoacana de San Nicolás de Hidalgo, Morelia, Mexico
| | - Víctor M Baizabal-Aguirre
- Centro Multidisciplinario de Estudios en Biotecnología, Facultad de Medicina Veterinaria y Zootecnia, Universidad Michoacana de San Nicolás de Hidalgo, Morelia, Mexico
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Li H, Xu CX, Gong RJ, Chi JS, Liu P, Liu XM. How does Helicobacter pylori cause gastric cancer through connexins: An opinion review. World J Gastroenterol 2019; 25:5220-5232. [PMID: 31558869 PMCID: PMC6761244 DOI: 10.3748/wjg.v25.i35.5220] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Revised: 08/12/2019] [Accepted: 08/19/2019] [Indexed: 02/06/2023] Open
Abstract
Helicobacter pylori (H. pylori) is a Gram-negative bacterium with a number of virulence factors, such as cytotoxin-associated gene A, vacuolating cytotoxin A, its pathogenicity island, and lipopolysaccharide, which cause gastrointestinal diseases. Connexins function in gap junctional homeostasis, and their downregulation is closely related to gastric carcinogenesis. Investigations into H. pylori infection and the fine-tuning of connexins in cells or tissues have been reported in previous studies. Therefore, in this review, the potential mechanisms of H. pylori-induced gastric cancer through connexins are summarized in detail.
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Affiliation(s)
- Huan Li
- Department of Gastroenterology, the Third Xiangya Hospital of Central South University, Changsha 410013, Hunan Province, China
| | - Can-Xia Xu
- Department of Gastroenterology, the Third Xiangya Hospital of Central South University, Changsha 410013, Hunan Province, China
| | - Ren-Jie Gong
- Department of Gastroenterology, the Third Xiangya Hospital of Central South University, Changsha 410013, Hunan Province, China
| | - Jing-Shu Chi
- Department of Gastroenterology, the Third Xiangya Hospital of Central South University, Changsha 410013, Hunan Province, China
| | - Peng Liu
- Department of Gastroenterology, the Third Xiangya Hospital of Central South University, Changsha 410013, Hunan Province, China
| | - Xiao-Ming Liu
- Department of Gastroenterology, the Third Xiangya Hospital of Central South University, Changsha 410013, Hunan Province, China
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circRNA CDR1as Regulated the Proliferation of Human Periodontal Ligament Stem Cells under a Lipopolysaccharide-Induced Inflammatory Condition. Mediators Inflamm 2019; 2019:1625381. [PMID: 31582895 PMCID: PMC6754938 DOI: 10.1155/2019/1625381] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2019] [Revised: 06/05/2019] [Accepted: 07/15/2019] [Indexed: 12/21/2022] Open
Abstract
circRNA CDR1as (CDR1as) has been demonstrated to play important roles in a variety of inflammation-related diseases by acting as miRNA sponges. The present study is aimed at investigating the potential roles of CDR1as in the proliferation of human periodontal ligament stem cells (PDLSCs) under an inflammatory condition induced by Porphyromonas gingivalis-derived lipopolysaccharide (LPS). Human periodontal ligament cells (PDLCs) were isolated from periodontal ligament tissue, and PDLSCs were sorted from PDLCs based on the STRO-1 expression through fluorescence-activated cell sorting. We further found that CDR1as was significantly downregulated in LPS-treated PDLSCs compared to untreated cells, as well as in normal periodontal ligament tissues compared to periodontitis tissues. Knockdown of CDR1as promoted LPS-induced proliferative inhibition of PDLSCs, whereas overexpression of CDR1as alleviated the LPS-induced proliferative ability of PDLSCs. Mechanistically, CDR1as functioned as an miR-7 sponge to activate the ERK signal pathway to mediate the inhibition effect of LPS on cell proliferation. Taken together, our findings revealed the effects of the interacting pair of CDR1as/miR-7 on the proliferation ability of PDLSCs within their surrounding inflammatory microenvironment of periodontitis.
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Li H, Xu CX, Gong RJ, Chi JS, Liu P, Liu XM. How does Helicobacter pyloricause gastric cancer through connexins: An opinion review. World J Gastroenterol 2019. [DOI: 10.3748/wjg.v25.i355220] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
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