1
|
Imani A, Panahipour L, dos Santos Sanches N, Wang L, Gruber R. Platelet-Rich Fibrin Increases CXCL8 Expression in Gingival Fibroblasts. Biomedicines 2024; 12:1326. [PMID: 38927533 PMCID: PMC11201793 DOI: 10.3390/biomedicines12061326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2024] [Revised: 06/07/2024] [Accepted: 06/11/2024] [Indexed: 06/28/2024] Open
Abstract
Platelet-rich fibrin (PRF), the coagulated plasma of fractionated blood, is widely used to support tissue regeneration in dentistry, and the underlying cellular and molecular mechanisms are increasingly being understood. Periodontal connective tissues steadily express CXCL8, a chemokine that attracts granulocytes and lymphocytes, supporting homeostatic immunity. Even though PRF is considered to dampen inflammation, it should not be ruled out that PRF increases the expression of CXCL8 in gingival fibroblasts. To test this hypothesis, we conducted a bioassay where gingival fibroblasts were exposed to PRF lysates and the respective serum. We show here that PRF lysates and, to a lesser extent, PRF serum increased the expression of CXCL8 by the gingival fibroblasts, as confirmed by immunoassay. SB203580, the inhibitor of p38 mitogen-activated protein kinase, reduced CXCL8 expression. Consistently, PRF lysates and, to a weaker range, the PRF serum also caused phosphorylation of p38 in gingival fibroblasts. Assuming that PRF is a rich source of growth factors, the TGF-β receptor type I kinase inhibitor SB431542 decreased the PRF-induced expression and translation of CXCL8. The findings suggest that PRF lysates and the respective serum drive CXCL8 expression by activating TGF-β and p38 signaling in gingival fibroblasts.
Collapse
Affiliation(s)
- Atefe Imani
- Department of Oral Biology, University Clinic of Dentistry, Medical University of Vienna, 1090 Vienna, Austria; (A.I.); (L.P.); (N.d.S.S.); (L.W.)
| | - Layla Panahipour
- Department of Oral Biology, University Clinic of Dentistry, Medical University of Vienna, 1090 Vienna, Austria; (A.I.); (L.P.); (N.d.S.S.); (L.W.)
| | - Natalia dos Santos Sanches
- Department of Oral Biology, University Clinic of Dentistry, Medical University of Vienna, 1090 Vienna, Austria; (A.I.); (L.P.); (N.d.S.S.); (L.W.)
- Department of Diagnosis and Surgery, Araçatuba Dental School of Sao Paulo, Sao Paulo 16015-050, Brazil
| | - Lei Wang
- Department of Oral Biology, University Clinic of Dentistry, Medical University of Vienna, 1090 Vienna, Austria; (A.I.); (L.P.); (N.d.S.S.); (L.W.)
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou 325000, China
| | - Reinhard Gruber
- Department of Oral Biology, University Clinic of Dentistry, Medical University of Vienna, 1090 Vienna, Austria; (A.I.); (L.P.); (N.d.S.S.); (L.W.)
- Department of Periodontology, School of Dental Medicine, University of Bern, 3010 Bern, Switzerland
- Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria
| |
Collapse
|
2
|
Liu X, Li H. Global trends in research on aging associated with periodontitis from 2002 to 2023: a bibliometric analysis. Front Endocrinol (Lausanne) 2024; 15:1374027. [PMID: 38800469 PMCID: PMC11116588 DOI: 10.3389/fendo.2024.1374027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2024] [Accepted: 04/02/2024] [Indexed: 05/29/2024] Open
Abstract
Background Aging has been implicated in many chronic inflammatory diseases, including periodontitis. Periodontitis is an inflammatory disease caused by long-term irritation of the periodontal tissues by the plaque biofilm on the surface of the teeth. However, only a few bibliometric analyses have systematically studied this field to date. This work sought to visualize research hot spots and trends in aging associated with periodontitis from 2002 to 2023 through bibliometric approaches. Methods Graphpad prism v8.0.2 was used to analyse and plot annual papers, national publication trends and national publication heat maps. In addition, CtieSpace (6.1.6R (64-bit) Advanced Edition) and VOSviewer (version 1.6.18) were used to analyse these data and visualize the scientific knowledge graph. Results The number of documents related to aging associated with periodontitis has steadily increased over 21 years. With six of the top ten institutions in terms of publications coming from the US, the US is a major driver of research in this area. journal of periodontology is the most published journal in the field. Tonetti MS is the most prolific authors and co-cited authors in the field. Journal of Periodontology and Journal of Clinical Periodontology are the most popular journals in the field with the largest literature. Periodontitis, Alzheimer's disease, and peri-implantitis are current hot topics and trends in the field. Inflammation, biomarkers, oxidative stress cytokines are current research hotspots in this field. Conclusion Our research found that global publications regarding research on aging associated with periodontitis increased dramatically and were expected to continue increasing. Inflammation and aging, and the relationship between periodontitis and systemic diseases, are topics worthy of attention.
Collapse
Affiliation(s)
| | - Hongjiao Li
- Department of Stomatology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| |
Collapse
|
3
|
Diehl D, Friedmann A, Bachmann HS. Prenyltransferase gene expression reveals an essential role of prenylation for the inflammatory response in human gingival fibroblasts. J Periodontol 2023; 94:1450-1460. [PMID: 37432945 DOI: 10.1002/jper.23-0220] [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: 04/03/2023] [Accepted: 06/08/2023] [Indexed: 07/13/2023]
Abstract
BACKGROUND Prenyltrasferases (PTases) are a class of enzymes known to be responsible for promoting posttranslational modification at the carboxyl terminus of proteins containing a so-called CaaX-motif. The process is responsible for proper membrane localization and the appropriate function of several intracellular signaling proteins. Current research demonstrating the pathomechanistic importance of prenylation in inflammatory illnesses emphasizes the requirement to ascertain the differential expression of PT genes under inflammatory settings, particularly in periodontal disease. METHODS Telomerase-immortalized human gingival fibroblasts (HGF-hTert) were cultured and treated with either inhibitors of prenylation (PTI) lonafarnib, tipifarnib, zoledronic acid, or atorvastatin at concentrations of 10 μM in combination with or without 10 μg Porphyromonas gingivalis lipopolysaccharide (LPS) for 24 h. Prenyltransferase genes FNTB, FNTA, PGGT1B, RABGGTA, RABGGTB, and PTAR1 as well as inflammatory marker genes MMP1 and IL1B were detected using quantitative real-time polymerase chain reaction (RT-qPCR). Immunoblot and protein immunoassay were used to confirm the results on the protein level. RESULTS RT-qPCR experiments revealed significant upregulation of IL1B, MMP1, FNTA, and PGGT1B upon LPS treatment. PTase inhibitors caused significant downregulation of the inflammatory cytokine expression. Interestingly, FNTB expression was significantly upregulated in response to any PTase inhibitor in combination with LPS, but not upon LPS treatment only, indicating a vital role of protein farnesyltransferase in the proinflammatory signaling cascade. CONCLUSIONS In this study, distinct PTase gene expression patterns in pro-inflammatory signaling were discovered. Moreover, PTase inhibiting drugs ameliorated inflammatory mediator expression by a significant margin, indicating that prenylation is a major pre-requisite for innate immunity in periodontal cells.
Collapse
Affiliation(s)
- Daniel Diehl
- Institute of Pharmacology and Toxicology, Center for Biomedical Education and Research (ZBAF), Faculty of Health, Witten/Herdecke University, Witten, Germany
- Department of Periodontology, Center for Biomedical Education and Research (ZBAF), Faculty of Health, Witten/Herdecke University, Witten, Germany
| | - Anton Friedmann
- Department of Periodontology, Center for Biomedical Education and Research (ZBAF), Faculty of Health, Witten/Herdecke University, Witten, Germany
| | - Hagen S Bachmann
- Institute of Pharmacology and Toxicology, Center for Biomedical Education and Research (ZBAF), Faculty of Health, Witten/Herdecke University, Witten, Germany
| |
Collapse
|
4
|
Gonzalez OA, Kirakodu SS, Ebersole JL. DAMPs and alarmin gene expression patterns in aging healthy and diseased mucosal tissues. FRONTIERS IN ORAL HEALTH 2023; 4:1320083. [PMID: 38098978 PMCID: PMC10720672 DOI: 10.3389/froh.2023.1320083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Accepted: 11/15/2023] [Indexed: 12/17/2023] Open
Abstract
Introduction Periodontitis is delineated by a dysbiotic microbiome at sites of lesions accompanied by a dysregulated persistent inflammatory response that undermines the integrity of the periodontium. The interplay of the altered microbial ecology and warning signals from host cells would be a critical feature for maintaining or re-establishing homeostasis in these tissues. Methods This study used a nonhuman primate model (Macaca mulatta) with naturally-occurring periodontitis (n = 34) and experimental ligature-induced periodontitis (n = 36) to describe the features of gene expression for an array of damage-associate molecular patterns (DAMPs) or alarmins within the gingival tissues. The animals were age stratified into: ≤3 years (Young), 7-12 years (Adolescent), 12-15 years (Adult) and 17-23 years (Aged). Gingival tissue biopsies were examined via microarray. The analysis focused on 51 genes representative of the DAMPs/alarmins family of host cell warning factors and 18 genes associated with tissue destructive processed in the gingival tissues. Bacterial plaque samples were collected by curette sampling and 16S rRNA gene sequences used to describe the oral microbiome. Results A subset of DAMPs/alarmins were expressed in healthy and naturally-occurring periodontitis tissues in the animals and suggested local effects on gingival tissues leading to altered levels of DAMPs/alarmins related to age and disease. Significant differences from adult healthy levels were most frequently observed in the young and adolescent animals with few representatives in this gene array altered in the healthy aged gingival tissues. Of the 51 target genes, only approximately ⅓ were altered by ≥1.5-fold in any of the age groups of animals during disease, with those increases observed during disease initiation. Distinctive positive and negative correlations were noted with the DAMP/alarmin gene levels and comparative expression changes of tissue destructive molecules during disease across the age groups. Finally, specific correlations of DAMP/alarmin genes and relative abundance of particular microbes were observed in health and resolution samples in younger animals, while increased correlations during disease in the older groups were noted. Conclusions Thus, using this human-like preclinical model of induced periodontitis, we demonstrated the dynamics of the activation of the DAMP/alarmin warning system in the gingival tissues that showed some specific differences based on age.
Collapse
Affiliation(s)
- O. A. Gonzalez
- Center for Oral Health Research, College of Dentistry, University of Kentucky, Lexington, KY, United States
| | - S. S. Kirakodu
- Center for Oral Health Research, College of Dentistry, University of Kentucky, Lexington, KY, United States
| | - J. L. Ebersole
- Department of Biomedical Sciences, School of Dental Medicine, University of Nevada Las Vegas, Las Vegas, NV, United States
| |
Collapse
|
5
|
Wang Z, Chen H, Peng L, He Y, Zhang X. Revealing a potential necroptosis-related axis (RP11-138A9.1/hsa-miR-98-5p/ZBP1) in periodontitis by construction of the ceRNA network. J Periodontal Res 2023; 58:968-985. [PMID: 37357608 DOI: 10.1111/jre.13157] [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: 02/02/2023] [Revised: 06/09/2023] [Accepted: 06/14/2023] [Indexed: 06/27/2023]
Abstract
BACKGROUND AND OBJECTIVES Periodontitis, a prevalent chronic inflammatory condition, poses a significant risk of tooth loosening and subsequent tooth loss. Within the realm of programmed cell death, a recently recognized process known as necroptosis has garnered attention for its involvement in numerous inflammatory diseases. Nevertheless, its correlation with periodontitis is indistinct. Our study aimed to identify necroptosis-related lncRNAs and crucial lncRNA-miRNA-mRNA regulatory axes in periodontitis to further understand the pathogenesis of periodontitis. MATERIALS AND METHODS Gene expression profiles in gingival tissues were acquired from the Gene Expression Omnibus (GEO) database. Selecting hub necroptosis-related lncRNA and extracting the key lncRNA-miRNA-mRNA axes based on the ceRNA network by adding novel machine-learning models based on conventional analysis and combining qRT-PCR validation. Then, an artificial neural network (ANN) model was constructed for lncRNA in regulatory axes, and the accuracy of the model was validated by receiver operating characteristic (ROC) curve analysis. The clinical effect of the model was evaluated by decision curve analysis (DCA). Weighted correlation network analysis (WGCNA) and single-sample gene set enrichment analysis (ssGSEA) was performed to explore how these lncRNAs work in periodontitis. RESULTS Seven hub necroptosis-related lncRNAs and three lncRNA-miRNA-mRNA regulatory axes (RP11-138A9.1/hsa-miR-98-5p/ZBP1 axis, RP11-96D1.11/hsa-miR-185-5p/EZH2 axis, and RP4-773 N10.4/hsa-miR-21-5p/TLR3 axis) were predicted. WGCNA revealed that RP11-138A9.1 was significantly correlated with the "purple module". Functional enrichment analysis and ssGSEA demonstrated that the RP11-138A9.1/hsa-miR-98-5p/ZBP1 axis is closely related to the inflammation and immune processes in periodontitis. CONCLUSION Our study predicted a crucial necroptosis-related regulatory axis (RP11-138A9.1/hsa-miR-98-5p/ZBP1) based on the ceRNA network, which may aid in elucidating the role and mechanism of necroptosis in periodontitis.
Collapse
Affiliation(s)
- Zhenxiang Wang
- College of Stomatology, Chongqing Medical University, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing Medical University, Chongqing, China
| | - Hang Chen
- College of Stomatology, Chongqing Medical University, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing Medical University, Chongqing, China
| | - Limin Peng
- College of Stomatology, Chongqing Medical University, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing Medical University, Chongqing, China
| | - Yujuan He
- Department of Laboratory Medicine, Key Laboratory of Diagnostic Medicine (Ministry of Education), Chongqing Medical University, Chongqing, China
| | - Xiaonan Zhang
- College of Stomatology, Chongqing Medical University, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing Medical University, Chongqing, China
| |
Collapse
|
6
|
Anfossi R, Vivar R, Ayala P, González-Herrera F, Espinoza-Pérez C, Osorio JM, Román-Torres M, Bolívar S, Díaz-Araya G. Interferon-β decreases LPS-induced neutrophil recruitment to cardiac fibroblasts. Front Cell Dev Biol 2023; 11:1122408. [PMID: 37799272 PMCID: PMC10547890 DOI: 10.3389/fcell.2023.1122408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Accepted: 09/01/2023] [Indexed: 10/07/2023] Open
Abstract
Introduction: Cardiac fibroblasts (CF) are crucial cells in damaged heart tissues, expressing TLR4, IFN-receptor and responding to lipopolysaccharide (LPS) and interferon-β (IFN-β) respectively. While CF interact with immune cells; however, their relationship with neutrophils remains understudied. Additionally, theimpact of LPS and IFN-β on CF-neutrophil interaction is poorly understood. Methods: Isolated CF from adult rats were treated with LPS, with or without IFN-β. This study examined IL-8 secretion, ICAM-1 and VCAM-1 expression, and neutrophil recruitment, as well as their effects on MMPs activity. Results: LPS triggered increased IL-8 expression and secretion, along with elevated ICAM-1 and VCAM-1 expression, all of which were blocked by TAK-242. Pre-treatment with IFN-β countered these LPS effects. LPS treated CF showed higher neutrophil recruitment (migration and adhesion) compared to unstimulated CF, an effect prevented by IFN-β. Ruxolitinib blocked these IFN-β anti-inflammatory effects, implicating JAK signaling. Analysis of culture medium zymograms from CF alone, and CF-neutrophils interaction, revealed that MMP2 was mainly originated from CF, while MMP9 could come from neutrophils. LPS and IFN-β boosted MMP2 secretion by CF. MMP9 activity in CF was low, and LPS or IFN-β had no significant impact. Pre-treating CF with LPS, IFN-β, or both before co-culture with neutrophils increased MMP2. Neutrophil co-culture increased MMP9 activity, with IFN-β pre-treatment reducing MMP9 compared to unstimulated CF. Conclusion: In CF, LPS induces the secretion of IL-8 favoring neutrophils recruitment and these effects were blocked by IFN-. The results highlight that CF-neutrophil interaction appears to influence the extracellular matrix through MMPs activity modulation.
Collapse
Affiliation(s)
- Renatto Anfossi
- Unidad de Farmacia, Hospital Regional del Libertador Bernardo O’Higgins, Rancagua, Chile
- Departamento de Química Farmacológica y Toxicológica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago, Chile
| | - Raúl Vivar
- Departamento de Química Farmacológica y Toxicológica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago, Chile
- Instituto de Farmacología, Facultad de Medicina, Universidad de Chile, Santiago, Chile
| | - Pedro Ayala
- Facultad de Medicina, Pontifica Universidad Católica de Chile, Santiago de Chile, Chile
| | | | - Claudio Espinoza-Pérez
- Departamento de Química Farmacológica y Toxicológica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago, Chile
| | - José Miguel Osorio
- Departamento de Química Farmacológica y Toxicológica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago, Chile
| | - Mauricio Román-Torres
- Departamento de Química Farmacológica y Toxicológica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago, Chile
| | - Samir Bolívar
- Facultad de Química y Farmacia, Universidad del Atlántico, Barranquilla, Colombia
| | - Guillermo Díaz-Araya
- Departamento de Química Farmacológica y Toxicológica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago, Chile
- Advanced Center for Chronic Diseases (ACCDiS), Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago, Chile
| |
Collapse
|
7
|
Cui J, Tang W, Wang W, Yi L, Teng F, Xu F, Li M, Ma M, Dong J. Acteoside alleviates asthma by modulating ROS-responsive NF-κB/MAPK signaling pathway. Int Immunopharmacol 2023. [DOI: 10.1016/j.intimp.2023.109806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
|
8
|
Naruishi K. Biological Roles of Fibroblasts in Periodontal Diseases. Cells 2022; 11:3345. [PMID: 36359741 PMCID: PMC9654228 DOI: 10.3390/cells11213345] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 10/20/2022] [Accepted: 10/21/2022] [Indexed: 08/08/2023] Open
Abstract
Periodontal diseases include periodontitis and gingival overgrowth. Periodontitis is a bacterial infectious disease, and its pathological cascade is regulated by many inflammatory cytokines secreted by immune or tissue cells, such as interleukin-6. In contrast, gingival overgrowth develops as a side effect of specific drugs, such as immunosuppressants, anticonvulsants, and calcium channel blockers. Human gingival fibroblasts (HGFs) are the most abundant cells in gingival connective tissue, and human periodontal ligament fibroblasts (HPLFs) are located between the teeth and alveolar bone. HGFs and HPLFs are both crucial for the remodeling and homeostasis of periodontal tissue, and their roles in the pathogenesis of periodontal diseases have been examined for 25 years. Various responses by HGFs or HPLFs contribute to the progression of periodontal diseases. This review summarizes the biological effects of HGFs and HPLFs on the pathogenesis of periodontal diseases.
Collapse
Affiliation(s)
- Koji Naruishi
- Department of Periodontology and Endodontology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima 770-8504, Japan
| |
Collapse
|
9
|
Kondo T, Okawa H, Hokugo A, Shokeen B, Sundberg O, Zheng Y, McKenna CE, Lux R, Nishimura I. Oral microbial extracellular DNA initiates periodontitis through gingival degradation by fibroblast-derived cathepsin K in mice. Commun Biol 2022; 5:962. [PMID: 36104423 PMCID: PMC9474870 DOI: 10.1038/s42003-022-03896-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2022] [Accepted: 08/25/2022] [Indexed: 11/11/2022] Open
Abstract
Periodontitis is a highly prevalent disease leading to uncontrolled osteoclastic jawbone resorption and ultimately edentulism; however, the disease onset mechanism has not been fully elucidated. Here we propose a mechanism for initial pathology based on results obtained using a recently developed Osteoadsorptive Fluogenic Sentinel (OFS) probe that emits a fluorescent signal triggered by cathepsin K (Ctsk) activity. In a ligature-induced mouse model of periodontitis, a strong OFS signal is observed before the establishment of chronic inflammation and bone resorption. Single cell RNA sequencing shows gingival fibroblasts to be the primary cellular source of early Ctsk. The in vivo OFS signal is activated when Toll-Like Receptor 9 (TLR9) ligand or oral biofilm extracellular DNA (eDNA) is topically applied to the mouse palatal gingiva. This previously unrecognized interaction between oral microbial eDNA and Ctsk of gingival fibroblasts provides a pathological mechanism for disease initiation and a strategic basis for early diagnosis and treatment of periodontitis.
Collapse
Affiliation(s)
- Takeru Kondo
- Weintraub Center for Reconstructive Biotechnology, Division of Regenerative & Reconstructive Sciences, UCLA School of Dentistry, Los Angeles, CA, 90095, USA
- Division of Molecular and Regenerative Prosthodontics, Tohoku University Graduate School of Dentistry, Sendai, Miyagi, 980-8575, Japan
| | - Hiroko Okawa
- Weintraub Center for Reconstructive Biotechnology, Division of Regenerative & Reconstructive Sciences, UCLA School of Dentistry, Los Angeles, CA, 90095, USA
- Division of Molecular and Regenerative Prosthodontics, Tohoku University Graduate School of Dentistry, Sendai, Miyagi, 980-8575, Japan
| | - Akishige Hokugo
- Weintraub Center for Reconstructive Biotechnology, Division of Regenerative & Reconstructive Sciences, UCLA School of Dentistry, Los Angeles, CA, 90095, USA
- Regenerative Bioengineering and Repair Laboratory, Division of Plastic and Reconstructive Surgery, Department of Surgery, David Geffen School of Medicine at UCLA, Los Angeles, CA, 90095, USA
| | - Bhumika Shokeen
- Section of Biosystems and Function, UCLA School of Dentistry, Los Angeles, CA, 90095, USA
| | - Oskar Sundberg
- Department of Chemistry, Dana and David Dornsife College of Letters, Arts and Sciences, University of Southern California, Los Angeles, CA, 90089, USA
| | - Yiying Zheng
- Department of Chemistry, Dana and David Dornsife College of Letters, Arts and Sciences, University of Southern California, Los Angeles, CA, 90089, USA
| | - Charles E McKenna
- Department of Chemistry, Dana and David Dornsife College of Letters, Arts and Sciences, University of Southern California, Los Angeles, CA, 90089, USA
| | - Renate Lux
- Section of Biosystems and Function, UCLA School of Dentistry, Los Angeles, CA, 90095, USA
| | - Ichiro Nishimura
- Weintraub Center for Reconstructive Biotechnology, Division of Regenerative & Reconstructive Sciences, UCLA School of Dentistry, Los Angeles, CA, 90095, USA.
| |
Collapse
|
10
|
Martínez-García M, Hernández-Lemus E. Periodontal Inflammation and Systemic Diseases: An Overview. Front Physiol 2021; 12:709438. [PMID: 34776994 PMCID: PMC8578868 DOI: 10.3389/fphys.2021.709438] [Citation(s) in RCA: 88] [Impact Index Per Article: 29.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Accepted: 09/28/2021] [Indexed: 12/15/2022] Open
Abstract
Periodontitis is a common inflammatory disease of infectious origins that often evolves into a chronic condition. Aside from its importance as a stomatologic ailment, chronic periodontitis has gained relevance since it has been shown that it can develop into a systemic condition characterized by unresolved hyper-inflammation, disruption of the innate and adaptive immune system, dysbiosis of the oral, gut and other location's microbiota and other system-wide alterations that may cause, coexist or aggravate other health issues associated to elevated morbi-mortality. The relationships between the infectious, immune, inflammatory, and systemic features of periodontitis and its many related diseases are far from being fully understood and are indeed still debated. However, to date, a large body of evidence on the different biological, clinical, and policy-enabling sources of information, is available. The aim of the present work is to summarize many of these sources of information and contextualize them under a systemic inflammation framework that may set the basis to an integral vision, useful for basic, clinical, and therapeutic goals.
Collapse
Affiliation(s)
- Mireya Martínez-García
- Sociomedical Research Unit, National Institute of Cardiology "Ignacio Chávez", Mexico City, Mexico
| | - Enrique Hernández-Lemus
- Computational Genomics Division, National Institute of Genomic Medicine (INMEGEN), Mexico City, Mexico.,Centro de Ciencias de la Complejidad, Universidad Nacional Autónoma de Mèxico, Mexico City, Mexico
| |
Collapse
|
11
|
Shcherba V, Krynytska I, Marushchak M, Korda M. Does thyroid dysfunction influence inflammatory mediators in experimental periodontitis? Endocr Regul 2021; 55:131-141. [PMID: 34523300 DOI: 10.2478/enr-2021-0014] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Objective. The aim of the present study was to investigate the presence of inflammatory mediators in rats with only periodontitis and periodontitis in a setting of hyper- and hypo-thyroidism and to analyze the correlative linkages between inflammatory mediators and thyroid hormones. Methods. White male 12-14 weeks old inbred rats (n=48) weighing 180-200 g were employed in the experiment. They were randomly divided into the following groups: Group I - control group, Group II - group with a model of periodontitis, Group III - group with a periodontitis in a setting of hyperthyroidism, and Group IV - group with periodontitis in a setting of hypothyroidism. The presence of tumor-necrosis factor-α (TNF-α) and interleukins IL-1β and IL-10 in the periodontal homogenate supernatant was studied by a solid-phase enzyme-linked immunosorbent assay. Results. It was shown that experimental lipopolysaccharide (LPS)-induced periodontitis is accompanied by hyperproduction of pro-inflammatory cytokines (TNF-α, IL-1β) and reduction of anti-inflammatory cytokines (IL-10), whereas TNF-α underwent to maximum changes. Thyroid dysfunction exacerbates cytokine imbalance and severity of inflammation in experimental LPS-induced periodontitis, especially pronounced at hyperthyroidism, as evidenced by the predominance of TNF-α and IL-1β levels in the periodontal homogenate supernatant by 38.5% (р<0.01) and 75.6% (p<0.001), respectively, hyperthyroid over the euthyroid, and by 20.1% (p<0.05) and 24.1% (p<0.05), respectively, over the hypothyroid rats. Conclusions. Thyroid dysfunction, especially hyperthyroidism, may play an important role in the pro-inflammatory response in periodontitis. Hyperproduction of inflammatory mediators in thyroid dysfunction can induce a noticeable damage in the whole apparatus of the periodontium, thereby causing progression of periodontitis.
Collapse
Affiliation(s)
- Vitaliy Shcherba
- I. Horbachevsky Ternopil National Medical University, Ternopil, Ukraine
| | - Inna Krynytska
- I. Horbachevsky Ternopil National Medical University, Ternopil, Ukraine
| | - Mariya Marushchak
- I. Horbachevsky Ternopil National Medical University, Ternopil, Ukraine
| | - Mykhaylo Korda
- I. Horbachevsky Ternopil National Medical University, Ternopil, Ukraine
| |
Collapse
|
12
|
Jung JI, Kim S, Baek SM, Choi SI, Kim GH, Imm JY. Ecklonia cava Extract Exerts Anti-Inflammatory Effect in Human Gingival Fibroblasts and Chronic Periodontitis Animal Model by Suppression of Pro-Inflammatory Cytokines and Chemokines. Foods 2021; 10:foods10071656. [PMID: 34359526 PMCID: PMC8304037 DOI: 10.3390/foods10071656] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 07/15/2021] [Accepted: 07/16/2021] [Indexed: 12/14/2022] Open
Abstract
Periodontitis is one of the most common chronic inflammatory diseases. The anti-inflammatory effect of the extract from brown algae Ecklonia cava was analyzed in lipopolysaccharide (LPS)-stimulated human gingival fibroblasts (HGF-1), the most abundant cells in gingival tissue. The gene expressions of cyclooxygenase-2 and interleukin-6 were decreased by 78 and 50%, respectively, at 100 μg/mL Ecklonia cava extract (ECE) treatment. The gene expressions of matrix metalloproteases (MMP-2 and MMP-8) and chemokines (macrophage inflammatory protein 1-alpha and stromal cell-derived factor 1) were also significantly down-regulated by ECE treatment (p < 0.05). The increased reactive oxygen species (ROS) production in HGF-1 cells by LPS stimulation was decreased by 30% at 100 μg/mL ECE treatment. The mitogen-activated protein kinase pathway and the nuclear factor-kappa B (NF-κB) signal activated by ROS were suppressed by ECE in a dose-dependent manner. ECE treatment (400 mg/kg, 8 weeks) significantly improved alveolar bone resorption in the ligature-induced chronic periodontitis rat model. ECE supplementation also lowered elevated mRNA expression of the receptor activator of nuclear factor-kappa B (RANKL)/osteoprotegerin (OPG) in the gingival tissue (p < 0.05). Therefore, ECE mitigated gingival tissue destruction and bone resorption associated with chronic periodontitis condition.
Collapse
Affiliation(s)
- Jae-In Jung
- Department of Foods and Nutrition, Kookmin University, Seoul 02707, Korea; (J.-I.J.); (S.K.); (S.-M.B.)
| | - Seonyoung Kim
- Department of Foods and Nutrition, Kookmin University, Seoul 02707, Korea; (J.-I.J.); (S.K.); (S.-M.B.)
| | - Seung-Min Baek
- Department of Foods and Nutrition, Kookmin University, Seoul 02707, Korea; (J.-I.J.); (S.K.); (S.-M.B.)
| | - Soo-Im Choi
- Plant Resources Research Institute, Duksung Women’s University, Seoul 10326, Korea; (S.-I.C.); (G.-H.K.)
| | - Gun-Hee Kim
- Plant Resources Research Institute, Duksung Women’s University, Seoul 10326, Korea; (S.-I.C.); (G.-H.K.)
| | - Jee-Young Imm
- Department of Foods and Nutrition, Kookmin University, Seoul 02707, Korea; (J.-I.J.); (S.K.); (S.-M.B.)
- Correspondence: ; Tel.: +82-10-2526-1219
| |
Collapse
|
13
|
Zhang Q, Xu W, Xu X, Lu W, Zhao J, Zhang H, Chen W. Effects of Limosilactobacillus fermentum CCFM1139 on experimental periodontitis in rats. Food Funct 2021; 12:4670-4678. [PMID: 33928953 DOI: 10.1039/d1fo00409c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Periodontitis is a polymicrobial inflammatory disease often characterized by the excessive colonization of Porphyromonas gingivalis and Fusobacterium nucleatum, which causes alveolar bone resorption and advanced oral inflammation. This study aimed to evaluate the effect of Limosilactobacillus fermentum CCFM1139 on experimental periodontitis induced following ligature and infection with P. gingivalis and F. nucleatum in vivo. The results showed that L. fermentum CCFM1139 significantly reduced weight loss associated with periodontal inflammation (p < 0.05), while decreasing both the P. gingivalis and F. nucleatum populations within the oral cavity of rats (p < 0.05) and regulating the expression of tumor necrosis factor-alpha, interleukin (IL)-1 beta, and IL-8 in the periodontal tissue (p < 0.05). Microcomputed tomography (micro-CT) and histopathological examination revealed that L. fermentum CCFM1139 supplementation reduced the level of alveolar bone loss and bone porosity and increased bone volume (p < 0.05) in the experimental animals. Furthermore, L. fermentum CCFM1139 exhibited promising effects in preventing the deepening of the periodontal pocket and the increase in the gap between adjacent molars. Thus L. fermentum CCFM1139 was shown to have solid potential as an oral probiotic for protection against periodontitis suggesting that this may be a good candidate in the production of a new functional food for improving periodontitis.
Collapse
Affiliation(s)
- Qiuxiang Zhang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, P. R China.
| | | | | | | | | | | | | |
Collapse
|
14
|
CTHRC1 Knockdown Promotes Inflammatory Responses Partially by p38 MAPK Activation in Human Periodontal Ligament Cells. Inflammation 2021; 44:1831-1842. [PMID: 33846931 DOI: 10.1007/s10753-021-01461-8] [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: 11/10/2020] [Revised: 03/18/2021] [Accepted: 03/31/2021] [Indexed: 12/11/2022]
Abstract
Collagen triple helix repeat containing 1 (CTHRC1), a secreted glycoprotein, is widely expressed in many tissues. It has been recently defined as a novel marker for rheumatoid arthritis (RA), a systemic inflammatory disorder. However, the precise role of CTHRC1 in other chronic inflammatory diseases, like periodontal disease, remains unclear. This research aimed to explore the presence of CTHRC1 in periodontal inflammation, determine the precise role in inflammatory response modulation in periodontal ligament cells (PDLCs), and explore its underlying mechanisms. In vivo gingival crevicular fluid (GCF) and gingivae were obtained from healthy people and chronic periodontitis patients. Maxillary tissues of mice with or without ligature-induced periodontitis were immunostained for CTHRC1. In vitro human PDLCs were treated with tumor necrosis factor alpha (TNF-α) to mimic the inflammatory environment. Small interfering RNA (siRNA) was used to silence CTHRC1. SB203580 was used to inhibit the p38 mitogen-activated protein kinase (MAPK) pathway. CTHRC1 was highly expressed in GCF and gingival tissues of periodontitis patients. Animal models also revealed the same tendency. CTHRC1 knockdown promoted inflammatory cytokine production and activated the p38 MAPK signaling pathway in PDLCs. Inhibiting the p38 MAPK signaling pathway partially attenuated the inflammatory responses. This study revealed that CTHRC1 was highly expressed in periodontitis and suggested that CTHRC1 might play an important role in modulating periodontal inflammation.
Collapse
|
15
|
Lan KF, Shen YQ, Li Y, Ling CL, Gong YM, Xia SC, Guo XH, Ding X. Chemokine C-C motif ligand 8 in periodontal ligament during orthodontic tooth movement. Arch Oral Biol 2021; 123:104996. [PMID: 33453555 DOI: 10.1016/j.archoralbio.2020.104996] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 11/11/2020] [Accepted: 11/15/2020] [Indexed: 12/22/2022]
Abstract
OBJECTIVES To investigate the roles of chemokine (C-C motif) ligand 8 (CCL8) in periodontal ligament during orthodontic tooth movement (OTM). METHODS Bioinformatics analyzed 100 genes in human periodontal ligament cells that were most upregulated after 48 hours of mechanical stress, and these genes were classified through GO and KEGG databases. Nickel-titanium closed-coil springs were placed between right first molar and incisors to produce 20 cN of orthodontic force in eight-week-old male SD rats for 1 and 2 days, followed by immunohistochemical staining of CCL8. Human periodontal ligament fibroblasts (hPDLFs) were stimulated by 14% cyclic tension force (Flexcell FX-5000 T Tension System) or hypoxia conditions to mimic OTM for 1 and 2 days, then the resulting CCL8 were examined through ELISA. Scratching assay was performed by treating hPDLFs with different concentrations of CCL8 (1 ng/ml, 10 ng/ml, 100 ng/ml). The migration, proliferation, and adhesion abilities of 100 ng/ml CCL8-treated hPDLFs were also examined. qRT-PCR and western blot detected matrix metalloproteinase 3, periostin, and osteoprotegrin expressions of hPDLFs under 100 ng/ml CCL8. RESULTS Bioinformatic analysis demonstrated that CCL8 was upregulated after applying mechanical stress for 48 hours. CCL8 secretion showed upregulation after 24 hours of OTM applicationsin vivo and in vitro. CCL8-treated hPDLFs showed significant positive effects on cell proliferation and matrix metalloproteinase 3. It also inhibited periostin and osteoprotegrin expressions. CONCLUSIONS CCL8 was upregulated in periodontal ligament during initial stage of OTM. Although CCL8 in human periodontal ligaments showed no significant effects on cell migration ability, it did enhance cell proliferation and osteoclastogenesis.
Collapse
Affiliation(s)
- Keng-Fu Lan
- Department of Stomatology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Yu-Qing Shen
- Department of Stomatology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Yang Li
- Department of Stomatology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Chuan-Liang Ling
- Department of Stomatology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Yi-Ming Gong
- Department of Stomatology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Shu-Chi Xia
- Department of Stomatology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Xue-Hua Guo
- Department of Stomatology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Xiaojun Ding
- Department of Stomatology, Zhongshan Hospital, Fudan University, Shanghai 200032, China; State key laboratory of molecular engineering of polymers, Fudan University., Shanghai 200438, China.
| |
Collapse
|
16
|
Guo ZC, Jumatai S, Jing SL, Hu LL, Jia XY, Gong ZC. Bioinformatics and immunohistochemistry analyses of expression levels and clinical significance of CXCL2 and TANs in an oral squamous cell carcinoma tumor microenvironment of Prophyromonas gingivalis infection. Oncol Lett 2021; 21:189. [PMID: 33574928 PMCID: PMC7816391 DOI: 10.3892/ol.2021.12450] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Accepted: 12/07/2020] [Indexed: 01/31/2023] Open
Abstract
The present study aimed to detect the immunoexpression and clinical significance of Porphyromonas gingivalis (P. gingivalis) in the tumor microenvironment (TME) of oral squamous cell carcinoma (OSCC). The immunoexpression of P. gingivalis in OSCC tissues was detected via immunohistochemistry (IHC) after P. gingivalis was infected into the TME of OSCC. To identify the differentially expressed genes in the carcinogenesis and progression of OSCC with P. gingivalis infection, microarray datasets (GSE87539 and GSE138206) were downloaded from the Gene Expression Omnibus database. The immunoexpression levels of C-X-C motif chemokine ligand 2 (CXCL2) and tumor-associated neutrophils (TANs) were also evaluated via IHC, and the immunoexpression levels of all three clinical variables were analyzed using χ2 or Fisher's exact tests. The survival rates were calculated using the Kaplan-Meier method and the survival curves were compared using log-rank tests. Predominantly strong immunoexpression of P. gingivalis was identified in OSCC samples. CXCL2 was considered to be a differential gene in the two datasets. Immunoexpression of P. gingivalis was positively associated with CXCL2 and TANs expression. Furthermore, P. gingivalis was associated with survival status (P<0.001) and differentiation (P<0.001). CXCL2 was associated with age (P=0.038) and survival status (P=0.003), while TANs were associated with T stage (P=0.015) and clinical stage (P=0.002). These clinical variables were considered to be independent risk factors for the poor prognosis of patients with OSCC. Collectively, the results suggested that the immunoexpression of P. gingivalis may be positively associated with CXCL2 and TANs. In addition, the strong immunoexpression levels of P. gingivalis, CXCL2 and TANs may be associated with a poor prognosis in patients with OSCC.
Collapse
Affiliation(s)
- Zhi-Chen Guo
- Oncological Department of Oral and Maxillofacial Surgery, The Affiliated Stomatology Hospital of The First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang Uyghur Autonomous Region 830054, P.R. China
| | - Sakendeke Jumatai
- Oncological Department of Oral and Maxillofacial Surgery, The Affiliated Stomatology Hospital of The First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang Uyghur Autonomous Region 830054, P.R. China
| | - Si-Li Jing
- Department of Ophthalmology, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang Uyghur Autonomous Region 830054, P.R. China
| | - Lu-Lu Hu
- Oncological Department of Oral and Maxillofacial Surgery, The Affiliated Stomatology Hospital of The First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang Uyghur Autonomous Region 830054, P.R. China
| | - Xin-Yu Jia
- Oncological Department of Oral and Maxillofacial Surgery, The Affiliated Stomatology Hospital of The First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang Uyghur Autonomous Region 830054, P.R. China
| | - Zhong-Cheng Gong
- Oncological Department of Oral and Maxillofacial Surgery, The Affiliated Stomatology Hospital of The First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang Uyghur Autonomous Region 830054, P.R. China.,Xinjiang Uygur Autonomous Region Institute of Stomatology, Urumqi, Xinjiang Uyghur Autonomous Region 830054, P.R. China
| |
Collapse
|
17
|
Response of Human Mesenchymal Stromal Cells from Periodontal Tissue to LPS Depends on the Purity but Not on the LPS Source. Mediators Inflamm 2020; 2020:8704896. [PMID: 32714091 PMCID: PMC7352132 DOI: 10.1155/2020/8704896] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 05/05/2020] [Accepted: 06/08/2020] [Indexed: 12/16/2022] Open
Abstract
Human periodontal ligament stromal cells (hPDLSCs) and gingival mesenchymal stromal cells (hGMSCs) are resident mesenchymal stromal cells (MSCs) of the periodontal tissue. The lipopolysaccharide (LPS) from Porphyromonas gingivalis is structurally distinct from that of other Gram-negative bacteria, and earlier studies linked this structural difference to a distinct virulence activity and the ability to activate toll-like receptor 2 (TLR-2), besides TLR-4 as commonly occurring upon LPS challenge. Later studies, in contrast, argue that TLR-2 activation by P. gingivalis LPS is due to lipoprotein contamination. In the present study, we aimed to define the influence of structure versus purity of P. gingivalis LPS on the immune response of hPDLSCs and hGMSCs. Cells were stimulated with commercially available "standard" P. gingivalis LPS, "ultrapure" P. gingivalis LPS, or "ultrapure" Escherichia coli LPS, and the expression of interleukin- (IL-) 8, IL-6, monocyte chemoattractant protein- (MCP-) 1, TLR-2, and TLR-4 was evaluated. The contribution of TLR-4 to the LPS-induced response was assessed using the specific TLR-4 inhibitor TAK-242. "Standard" P. gingivalis LPS induced significantly higher IL-8, IL-6, and MCP-1 production compared to the "ultrapure" LPS preparations, with no significant difference detectable for "ultrapure" LPS from P. gingivalis and E. coli. By using TAK-242, the response of hPDLSCs and hGMSCs to "ultrapure" LPS preparations was effectively inhibited to the levels comparable to those of nonstimulated controls. In contrast, high levels of response to "standard" LPS were observed, even in the presence of TAK-242. Our data show that the response of MSCs from periodontal tissue to LPS depends more on the purity of the LPS preparation than on the LPS source. Even a small amount of contaminating lipoproteins can drastically enhance the hPDLSCs' and hGMSCs; responsiveness to P. gingivalis LPS, which might also contribute to the progression of periodontal disease.
Collapse
|
18
|
Ramadan DE, Hariyani N, Indrawati R, Ridwan RD, Diyatri I. Cytokines and Chemokines in Periodontitis. Eur J Dent 2020; 14:483-495. [PMID: 32575137 PMCID: PMC7440949 DOI: 10.1055/s-0040-1712718] [Citation(s) in RCA: 93] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Periodontitis is a common inflammatory periodontal disease affecting a wide range of population all over the world. The causing bacteria releases chemicals which activate the innate immune system to release proinflammatory cytokines contributing to more progression. This activates the acquired immune system leading to more progression of periodontitis. As the immune response goes on, released cytokines and chemokines can damage the periodontal ligaments, gingiva, and alveolar bone. There are many types of cytokines and chemokines in periodontitis. Cytokines are peptide mediators who are responsible for cell signaling and communication. Chemokines are a large subfamily of cytokines having the ability to coordinate leukocyte recruitment and activation. This paper is a narrative review of the literature.This review ensures that inflammatory mediators in the case of periodontitis can cause a noticeable damage in the whole apparatus of the periodontium. It causes soft tissue inflammation and bone damage affected by the mediators of both innate and acquired immune system.The inflammatory process is accompanied by large network of cytokines and chemokines. There is high expression of proinflammatory cytokines such as interleukin (IL)-1α, IL-1β, IL-6, IL-12, tumor necrosis factor (TNF)-α, and regulatory cytokines such as IL-4, IL-1(RA) receptor antagonist, IL-10, and induced protein (IP)-10. There is also increased production of cytokines IL-10, IL-12, interferon-γ, IP-10, IL-1RA, and IL-4. Cytokines IL-17, IL-6, IL-1β, TNF-α, macrophage colony-stimulating factor, and prostaglandin E
2
trigger the osteoclast activity causing bone resorption.
Collapse
Affiliation(s)
- Doaa Elsayed Ramadan
- Dental Health Science Postgraduate Program, Faculty of Dental Medicine, Universitas Airlangga, Surabaya, Indonesia
| | - Ninuk Hariyani
- Dental Health Science Postgraduate Program, Faculty of Dental Medicine, Universitas Airlangga, Surabaya, Indonesia.,Department of Dental Public Health, Faculty of Dental Medicine, Universitas Airlangga, Indonesia
| | - Retno Indrawati
- Dental Health Science Postgraduate Program, Faculty of Dental Medicine, Universitas Airlangga, Surabaya, Indonesia
| | - Rini Devijanti Ridwan
- Dental Health Science Postgraduate Program, Faculty of Dental Medicine, Universitas Airlangga, Surabaya, Indonesia
| | - Indeswati Diyatri
- Dental Health Science Postgraduate Program, Faculty of Dental Medicine, Universitas Airlangga, Surabaya, Indonesia
| |
Collapse
|
19
|
Gu Y, Han X. Toll-Like Receptor Signaling and Immune Regulatory Lymphocytes in Periodontal Disease. Int J Mol Sci 2020; 21:ijms21093329. [PMID: 32397173 PMCID: PMC7247565 DOI: 10.3390/ijms21093329] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 04/30/2020] [Accepted: 05/04/2020] [Indexed: 12/27/2022] Open
Abstract
Periodontitis is known to be initiated by periodontal microbiota derived from biofilm formation. The microbial dysbiotic changes in the biofilm trigger the host immune and inflammatory responses that can be both beneficial for the protection of the host from infection, and detrimental to the host, causing tissue destruction. During this process, recognition of Pathogen-Associated Molecular Patterns (PAMPs) by the host Pattern Recognition Receptors (PRRs) such as Toll-like receptors (TLRs) play an essential role in the host–microbe interaction and the subsequent innate as well as adaptive responses. If persistent, the adverse interaction triggered by the host immune response to the microorganisms associated with periodontal biofilms is a direct cause of periodontal inflammation and bone loss. A large number of T and B lymphocytes are infiltrated in the diseased gingival tissues, which can secrete inflammatory mediators and activate the osteolytic pathways, promoting periodontal inflammation and bone resorption. On the other hand, there is evidence showing that immune regulatory T and B cells are present in the diseased tissue and can be induced for the enhancement of their anti-inflammatory effects. Changes and distribution of the T/B lymphocytes phenotype seem to be a key determinant of the periodontal disease outcome, as the functional activities of these cells not only shape up the overall immune response pattern, but may directly regulate the osteoimmunological balance. Therefore, interventional strategies targeting TLR signaling and immune regulatory T/B cells may be a promising approach to rebalance the immune response and alleviate bone loss in periodontal disease. In this review, we will examine the etiological role of TLR signaling and immune cell osteoclastogenic activity in the pathogenesis of periodontitis. More importantly, the protective effects of immune regulatory lymphocytes, particularly the activation and functional role of IL-10 expressing regulatory B cells, will be discussed.
Collapse
Affiliation(s)
- Yingzhi Gu
- Department of Immunology and Infectious Diseases, The Forsyth Institute, 245 First Street, Cambridge, MA 02142, USA;
| | - Xiaozhe Han
- Department of Immunology and Infectious Diseases, The Forsyth Institute, 245 First Street, Cambridge, MA 02142, USA;
- Department of Oral Medicine, Infection and Immunity, Harvard School of Dental Medicine, Boston, MA 02115, USA
- Correspondence:
| |
Collapse
|
20
|
Wen L, Mu W, Lu H, Wang X, Fang J, Jia Y, Li Q, Wang D, Wen S, Guo J, Dai W, Ren X, Cui J, Zeng G, Gao J, Wang Z, Cheng B. Porphyromonas gingivalis Promotes Oral Squamous Cell Carcinoma Progression in an Immune Microenvironment. J Dent Res 2020; 99:666-675. [PMID: 32298192 DOI: 10.1177/0022034520909312] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Increasing evidence has revealed a significant association between microorganisms and oral squamous cell carcinoma (OSCC). Porphyromonas gingivalis, the keystone pathogen in chronic periodontitis, is considered an important potential etiologic agent of OSCC, but the underlying immune mechanisms through which P. gingivalis mediates tumor progression of the oral cancer remain poorly understood. Our cohort study showed that the localization of P. gingivalis in tumor tissues was related to poor survival of patients with OSCC. Moreover, P. gingivalis infection increased oral lesion multiplicity and size and promoted tumor progression in a 4-nitroquinoline-1 oxide (4NQO)–induced carcinogenesis mouse model by invading the oral lesions. In addition, CD11b+ myeloid cells and myeloid-derived suppressor cells (MDSCs) showed increased infiltration of oral lesions. Furthermore, in vitro observations showed that MDSCs accumulated when human-derived dysplastic oral keratinocytes (DOKs) were exposed to P. gingivalis, and CXCL2, CCL2, interleukin (IL)–6, and IL-8 may be potential candidate genes that facilitate the recruitment of MDSCs. Taken together, our findings suggest that P. gingivalis promotes tumor progression by generating a cancer-promoting microenvironment, indicating a close relationship among P. gingivalis, tumor progression of the oral cancer, and immune responses.
Collapse
Affiliation(s)
- L. Wen
- Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - W. Mu
- Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - H. Lu
- Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - X. Wang
- Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - J. Fang
- Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - Y. Jia
- Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - Q. Li
- Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - D. Wang
- Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - S. Wen
- Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - J. Guo
- Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - W. Dai
- Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - X. Ren
- Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - J. Cui
- State Key Laboratory of Oncology in South China, MOE Key Laboratory of Gene Function and Regulation, School of Life Sciences, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - G. Zeng
- Department of Microbiology, Zhongshan School of Medicine, Key Laboratory for Tropical Diseases Control of the Ministry of Education, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - J. Gao
- Discipline of Oral Bioscience, Sydney Dental School, Faculty of Medicine and Health, The University of Sydney, Westmead, NSW, Australia
| | - Z. Wang
- Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - B. Cheng
- Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-Sen University, Guangzhou, Guangdong, China
| |
Collapse
|
21
|
Wu X, Zhang G, Feng X, Li P, Tan Y. Transcriptome analysis of human periodontal ligament fibroblasts exposed to Porphyromonas gingivalis LPS. Arch Oral Biol 2020; 110:104632. [DOI: 10.1016/j.archoralbio.2019.104632] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Revised: 11/09/2019] [Accepted: 12/03/2019] [Indexed: 12/28/2022]
|
22
|
Kavasi RM, Berdiaki A, Spyridaki I, Papoutsidakis A, Corsini E, Tsatsakis A, Tzanakakis GN, Nikitovic D. Contact allergen (PPD and DNCB)-induced keratinocyte sensitization is partly mediated through a low molecular weight hyaluronan (LMWHA)/TLR4/NF-κB signaling axis. Toxicol Appl Pharmacol 2019; 377:114632. [PMID: 31226360 DOI: 10.1016/j.taap.2019.114632] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2019] [Revised: 06/06/2019] [Accepted: 06/17/2019] [Indexed: 12/12/2022]
Abstract
Allergic contact dermatitis (ACD) is caused by topical exposure to chemical allergens. Keratinocytes play a key role in innate immunity, as well as in ACD progression. The transmembrane Toll-like receptor 4 (TLR4), strongly implicated in skin inflammation, has the ability to bind Damage Associated Molecular Patterns (DAMPs), like Low Molecular Weight Hyaluronan (LMWHA). Previously, we had determined that p-phenylenediamine (PPD) and 2,4-dinitrochlorobenzene (DNCB) modulate keratinocyte HA deposition in a manner correlated to their sensitization. In the present study, we aimed to investigate putative co-operation of HA and TLR4 in the process of PPD and DNCB-induced keratinocyte activation. Contact sensitizers were shown to significantly increase the expression of Hyaluronan Synthases (HAS) and TLR4 in NCTC2544 human keratinocytes, as demonstrated by western blot and Real-Time PCR. These data, in correlation to earlier shown enhanced HA degradation suggest that the contact sensitizers facilitate HA turnover of keratinocytes and increase the release of pro-inflammatory, LMWHA fragments. Treatment with exogenous LMWHA enhanced TLR4, HAS levels and Nuclear factor-kappa beta (NF-κΒ) activation. PPD, DNCB and LMWHA-effects were shown to be partly executed through TLR4 downstream signaling as shown by Real-Time, western blot, siRNA and confocal microscopy approaches. Specifically, PPD and DNCB stimulated the activation of the TLR4 downstream mediator NF-κB. Therefore, the shown upregulation of TLR4 expression is suggested to further facilitate the release of endogenous, bioactive HA fragments and sustain keratinocyte activation. In conclusion, keratinocyte contact allergen-dependent sensitization is partly mediated through a LMWHA/TLR4/ NF-κB signaling axis.
Collapse
Affiliation(s)
- Rafaela-Maria Kavasi
- Laboratory of Anatomy-Histology-Embryology, School of Medicine, University of Crete, Heraklion, Greece
| | - Aikaterini Berdiaki
- Laboratory of Anatomy-Histology-Embryology, School of Medicine, University of Crete, Heraklion, Greece
| | - Ioanna Spyridaki
- Laboratory of Anatomy-Histology-Embryology, School of Medicine, University of Crete, Heraklion, Greece
| | - Antonis Papoutsidakis
- Laboratory of Anatomy-Histology-Embryology, School of Medicine, University of Crete, Heraklion, Greece
| | - Emanuela Corsini
- Laboratory of Toxicology, ESP, Università degli Studi di Milano, Italy
| | - Aristidis Tsatsakis
- Department of Forensic Sciences and Toxicology, University of Crete, Heraklion, Greece
| | - George N Tzanakakis
- Laboratory of Anatomy-Histology-Embryology, School of Medicine, University of Crete, Heraklion, Greece
| | - Dragana Nikitovic
- Laboratory of Anatomy-Histology-Embryology, School of Medicine, University of Crete, Heraklion, Greece.
| |
Collapse
|
23
|
Blufstein A, Behm C, Gahn J, Uitz O, Naumovska I, Moritz A, Rausch-Fan X, Andrukhov O. Synergistic effects triggered by simultaneous Toll-like receptor-2 and -3 activation in human periodontal ligament stem cells. J Periodontol 2019; 90:1190-1201. [PMID: 31049957 PMCID: PMC6852053 DOI: 10.1002/jper.19-0005] [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: 01/05/2019] [Revised: 03/26/2019] [Accepted: 04/17/2019] [Indexed: 12/14/2022]
Abstract
Background Although periodontitis is associated with disruption of the host‐microbial homeostasis, viruses are currently discussed to influence disease progression. Viral pathogens are recognized by Toll‐like receptor (TLR)‐3, which engages a different signaling pathway than other TLRs. This study aimed to investigate the effect of TLR‐3 agonist polyinosinic:polycytidylic acid (Poly I:C) on the expression of inflammatory markers and bone metabolism proteins by human periodontal ligament stem cells (hPDLSCs) compared with TLR‐2 agonist Pam3CSK4, which mimics the effect of bacterial lipoproteins. To assess potential combined effects of bacterial and viral infections, hPDLSCs response to simultaneous TLR‐2 and TLR‐3 activation was investigated. Methods HPDLSCs were stimulated with Poly I:C (0.0001‐1 µg/mL), Pam3CSK4 (1 µg/mL), and their combinations for 24 hours. Gene expression and protein levels of interleukin (IL)‐6, IL‐8, monocyte chemoattractant protein (MCP)‐1, and osteoprotegerin (OPG) were measured with qPCR and ELISA. Results Production of IL‐6, IL‐8, MCP‐1, and OPG was significantly increased by Poly I:C or Pam3CSK4 to a similar extent. The levels of all inflammatory mediators induced by simultaneous stimulation with Poly I:C and Pam3CSK4 were significantly higher compared with single stimuli as well as to their summed response. Gene expression and protein levels of OPG were enhanced by Poly I:C, but by lesser extent than by Pam3CSK4. OPG levels upon simultaneous stimulation with Pam3CSK4 and Poly I:C were significantly lower compared with Pam3CSK4 stimulation alone. Conclusions Simultaneous TLR‐2 and TLR‐3 activation synergistically triggers IL‐6, IL‐8, and MCP‐1 production, which was not observed for OPG. These findings suggest that TLR‐3 activation by viral infections might promote periodontitis progression.
Collapse
Affiliation(s)
- Alice Blufstein
- Department of Conservative Dentistry and Periodontology, University Clinic of Dentistry, Medical University of Vienna, Vienna, Austria
| | - Christian Behm
- Department of Conservative Dentistry and Periodontology, University Clinic of Dentistry, Medical University of Vienna, Vienna, Austria
| | - Johannes Gahn
- Department of Conservative Dentistry and Periodontology, University Clinic of Dentistry, Medical University of Vienna, Vienna, Austria
| | - Oksana Uitz
- Department of Conservative Dentistry and Periodontology, University Clinic of Dentistry, Medical University of Vienna, Vienna, Austria
| | - Ivana Naumovska
- Department of Conservative Dentistry and Periodontology, University Clinic of Dentistry, Medical University of Vienna, Vienna, Austria
| | - Andreas Moritz
- Department of Conservative Dentistry and Periodontology, University Clinic of Dentistry, Medical University of Vienna, Vienna, Austria
| | - Xiaohui Rausch-Fan
- Department of Conservative Dentistry and Periodontology, University Clinic of Dentistry, Medical University of Vienna, Vienna, Austria
| | - Oleh Andrukhov
- Department of Conservative Dentistry and Periodontology, University Clinic of Dentistry, Medical University of Vienna, Vienna, Austria
| |
Collapse
|
24
|
Kusuyama J, Nakamura T, Ohnishi T, Albertson BG, Ebe Y, Eiraku N, Noguchi K, Matsuguchi T. Low‐intensity pulsed ultrasound promotes bone morphogenic protein 9‐induced osteogenesis and suppresses inhibitory effects of inflammatory cytokines on cellular responses via Rho‐associated kinase 1 in human periodontal ligament fibroblasts. J Cell Biochem 2019; 120:14657-14669. [DOI: 10.1002/jcb.28727] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Revised: 01/14/2019] [Accepted: 01/25/2019] [Indexed: 12/16/2022]
Affiliation(s)
- Joji Kusuyama
- Department of Oral Biochemistry, Field of Developmental Medicine Kagoshima University Graduate School of Medical and Dental Sciences Kagoshima Japan
- Section on Integrative Physiology and Metabolism, Joslin Diabetes Center, Department of Medicine Harvard Medical School Boston Massachusetts
| | - Toshiaki Nakamura
- Department of Periodontology, Field of Oral and Maxillofacial Rehabilitation Kagoshima University Graduate School of Medical and Dental Sciences Kagoshima Japan
| | - Tomokazu Ohnishi
- Department of Oral Biochemistry, Field of Developmental Medicine Kagoshima University Graduate School of Medical and Dental Sciences Kagoshima Japan
| | - Brent G. Albertson
- Section on Integrative Physiology and Metabolism, Joslin Diabetes Center, Department of Medicine Harvard Medical School Boston Massachusetts
| | - Yukari Ebe
- Department of Periodontology, Field of Oral and Maxillofacial Rehabilitation Kagoshima University Graduate School of Medical and Dental Sciences Kagoshima Japan
- Division of Clinical Engineering, Department of Dental Hygiene Kagoshima University Hospital Kagoshima Japan
| | - Nahoko Eiraku
- Section on Integrative Physiology and Metabolism, Joslin Diabetes Center, Department of Medicine Harvard Medical School Boston Massachusetts
- Department of Periodontology, Field of Oral and Maxillofacial Rehabilitation Kagoshima University Graduate School of Medical and Dental Sciences Kagoshima Japan
| | - Kazuyuki Noguchi
- Department of Periodontology, Field of Oral and Maxillofacial Rehabilitation Kagoshima University Graduate School of Medical and Dental Sciences Kagoshima Japan
| | - Tetsuya Matsuguchi
- Department of Oral Biochemistry, Field of Developmental Medicine Kagoshima University Graduate School of Medical and Dental Sciences Kagoshima Japan
| |
Collapse
|
25
|
Wei L, Jiang Y, Zhou W, Liu S, Liu Y, Rausch-Fan X, Liu Z. Strontium ion attenuates lipopolysaccharide-stimulated proinflammatory cytokine expression and lipopolysaccharide-inhibited early osteogenic differentiation of human periodontal ligament cells. J Periodontal Res 2018; 53:999-1008. [PMID: 30221352 DOI: 10.1111/jre.12599] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2018] [Revised: 06/16/2018] [Accepted: 07/12/2018] [Indexed: 12/12/2022]
Abstract
BACKGROUND AND OBJECTIVE Periodontitis is a chronic inflammatory disease characterized by the destruction of the periodontium. The strontium ion (Sr2+ ) can prevent the bone loss associated with periodontitis and promote the regeneration of the bone. The mechanisms by which the Sr2+ works remain poorly understood. We aim to investigate the effects of the Sr2+ ion on cell proliferation, inflammatory regulation and osteogenic differentiation of human periodontal ligament cells (hPDLCs) in pathological conditions. MATERIAL AND METHODS hPDLCs were obtained from premolars that came from the orthodontic extraction. The hPDLCs were treated with Sr2+ and/or lipopolysaccharide (LPS), which was applied as the pathological condition of periodontitis. The effect of the dose of Sr2+ on cell proliferation was analyzed using a Cell Counting Kit-8 assay. The gene and protein expression of proinflammatory cytokines were detected by the real-time polymerase chain reaction and enzyme-linked immunosorbent assay. The osteogenic differentiation and mineralization were assessed by the real-time polymerase chain reaction, alkaline phosphatase activity assay and alizarin red staining. RESULTS Results demonstrated that Sr2+ in a range of concentrations from 0.02 to 2.5 mmol/L significantly improved the proliferation of hPDLCs. Sr2+ reversed LPS-stimulated proinflammatory cytokine expressions such as tumor necrosis factor alpha, interleukin (IL)-1β, IL-6 and IL-8. Moreover, Sr2+ rescued the LPS-inhibited gene expression of osteogenic differentiation. Although it appeared to suppress the late mineralization, Sr2+ can reverse the LPS-inhibited early osteogenic differentiation of hPDLCs. CONCLUSION These results indicated that Sr2+ could attenuate the LPS-stimulated proinflammatory molecule expression and inhibit early osteogenic differentiation of hPDLCs.
Collapse
Affiliation(s)
- Lingfei Wei
- Department of Oral Implantology, Yantai Stomatological Hospital, Yantai, China.,Department of Oral Implantology and Prosthetic Dentistry, Academic Center for Dentistry Amsterdam (ACTA), Amsterdam, The Netherlands
| | - Yuxi Jiang
- Department of Periodontology, Yantai Stomatological Hospital, Yantai, China
| | - Wenjuan Zhou
- Department of Oral Implantology, Yantai Stomatological Hospital, Yantai, China
| | - Shutai Liu
- Department of Periodontology, Yantai Stomatological Hospital, Yantai, China
| | - Yuelian Liu
- Department of Oral Implantology and Prosthetic Dentistry, Academic Center for Dentistry Amsterdam (ACTA), Amsterdam, The Netherlands
| | - Xiaohui Rausch-Fan
- Division of conservative Dentistry and Periodontology and Competence Center of Periodontal Research, Vienna Dental School, Medical University of Vienna, Vienna, Austria
| | - Zhonghao Liu
- Department of Oral Implantology, Yantai Stomatological Hospital, Yantai, China
| |
Collapse
|
26
|
Guo S, Kang J, Ji B, Guo W, Ding Y, Wu Y, Tian W. Periodontal-Derived Mesenchymal Cell Sheets Promote Periodontal Regeneration in Inflammatory Microenvironment. Tissue Eng Part A 2017; 23:585-596. [PMID: 28437177 DOI: 10.1089/ten.tea.2016.0334] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Affiliation(s)
- Shujuan Guo
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- National Engineering Laboratory for Oral Regenerative Medicine, Sichuan University, Chengdu, P.R. China
- Department of Periodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, P.R. China
| | - Jian Kang
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- National Engineering Laboratory for Oral Regenerative Medicine, Sichuan University, Chengdu, P.R. China
- Department of Periodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, P.R. China
- Department of Periodontics, Tianjin Stomatological Hospital, Tianjin, P.R. China
| | - Baohui Ji
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- National Engineering Laboratory for Oral Regenerative Medicine, Sichuan University, Chengdu, P.R. China
- Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, P.R. China
| | - Weihua Guo
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- National Engineering Laboratory for Oral Regenerative Medicine, Sichuan University, Chengdu, P.R. China
- Department of Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, P.R. China
| | - Yi Ding
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- Department of Periodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, P.R. China
| | - Yafei Wu
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- Department of Periodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, P.R. China
| | - Weidong Tian
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- National Engineering Laboratory for Oral Regenerative Medicine, Sichuan University, Chengdu, P.R. China
- Department of Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, P.R. China
| |
Collapse
|
27
|
Lipopolysaccharide-induced suppression of periodontal ligament cell proliferation and apoptosis are strengthened under high glucose conditions. Arch Oral Biol 2017; 79:70-76. [DOI: 10.1016/j.archoralbio.2017.01.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2016] [Revised: 01/11/2017] [Accepted: 01/12/2017] [Indexed: 11/22/2022]
|
28
|
Ricoldi MST, Furlaneto FAC, Oliveira LFF, Teixeira GC, Pischiotini JP, Moreira ALG, Ervolino E, de Oliveira MN, Bogsan CSB, Salvador SL, Messora MR. Effects of the probiotic Bifidobacterium animalis subsp. lactis on the non-surgical treatment of periodontitis. A histomorphometric, microtomographic and immunohistochemical study in rats. PLoS One 2017; 12:e0179946. [PMID: 28662142 PMCID: PMC5491108 DOI: 10.1371/journal.pone.0179946] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2017] [Accepted: 06/07/2017] [Indexed: 12/05/2022] Open
Abstract
Lactobacillus probiotics have been investigated in periodontitis. However, the effects of the genus Bifidobacterium on periodontitis are hardly known. This study evaluated the effects of the probiotic (PROB) Bifidobacterium animalis subsp. lactis (B. lactis) HN019 as an adjunct to scaling and root planing (SRP) in rats with experimental periodontitis (EP). At baseline, 32 rats were assigned to 4 groups: C (control), PROB, EP-SRP and EP-SRP-PROB. In groups EP-SRP and EP-SRP-PROB, the mandibular first molars of the animals received a ligature. At day 14, the ligatures were removed and SRP was performed. Animals of groups PROB and EP-SRP-PROB were orally administered with 10 mL/day of 109 colony forming units of B. lactis HN019 for 15 days, starting at day 14. Animals were euthanized at day 29. Histomorphometric, microtomographic and immunohistochemical analyses were performed. Microbiological effects of B. lactis on biofilm were also evaluated. Data were statistically analyzed (ANOVA, Tukey; Kruskal-Wallis, Dunn’s; Two-tailed t-test; p<0.05). Group EP-SRP-PROB presented reduced alveolar bone resorption and attachment loss when compared with Group EP-SRP (p<0.05). Group EP-SRP-PROB showed significantly fewer osteoclasts, increased expression of anti-inflammatory cytokines and reduced expression of proinflammatory cytokines compared with Group EP-SRP (p<0.05). B. lactis promoted a higher ratio between aerobic and anaerobic bacteria in biofilm samples (p<0.05). B. lactis HN019 may have a role in the treatment of EP in rats, as an adjunct to SRP.
Collapse
Affiliation(s)
- Milla S. T. Ricoldi
- Department of Oral and Maxillofacial Surgery and Periodontology, School of Dentistry of Ribeirao Preto, University of Sao Paulo–USP, Ribeirao Preto/ SP, Brazil
| | - Flávia A. C. Furlaneto
- Department of Oral and Maxillofacial Surgery and Periodontology, School of Dentistry of Ribeirao Preto, University of Sao Paulo–USP, Ribeirao Preto/ SP, Brazil
| | - Luiz F. F. Oliveira
- Department of Oral and Maxillofacial Surgery and Periodontology, School of Dentistry of Ribeirao Preto, University of Sao Paulo–USP, Ribeirao Preto/ SP, Brazil
| | - Gustavo C. Teixeira
- Department of Oral and Maxillofacial Surgery and Periodontology, School of Dentistry of Ribeirao Preto, University of Sao Paulo–USP, Ribeirao Preto/ SP, Brazil
| | - Jéssica P. Pischiotini
- Department of Oral and Maxillofacial Surgery and Periodontology, School of Dentistry of Ribeirao Preto, University of Sao Paulo–USP, Ribeirao Preto/ SP, Brazil
| | | | - Edilson Ervolino
- Department of Basic Sciences, Division of Histology, Dental School of Aracatuba, UNESP-Univ Estadual Paulista, Aracatuba/ SP, Brazil
| | - Maricê N. de Oliveira
- Department of Biochemical and Pharmaceutical Technology, School of Pharmaceutical Sciences, University of Sao Paulo–USP, Sao Paulo/ SP, Brazil
| | - Cristina S. B. Bogsan
- Department of Biochemical and Pharmaceutical Technology, School of Pharmaceutical Sciences, University of Sao Paulo–USP, Sao Paulo/ SP, Brazil
| | - Sérgio L. Salvador
- Department of Clinical Analyses, School of Pharmaceutical Sciences of Ribeirao Preto, University of São Paulo—USP, Ribeirão Preto/ SP, Brazil
| | - Michel R. Messora
- Department of Oral and Maxillofacial Surgery and Periodontology, School of Dentistry of Ribeirao Preto, University of Sao Paulo–USP, Ribeirao Preto/ SP, Brazil
- * E-mail:
| |
Collapse
|
29
|
Sharma M, Patterson L, Chapman E, Flood PM. Salmeterol, a Long-Acting β2-Adrenergic Receptor Agonist, Inhibits Macrophage Activation by Lipopolysaccharide From Porphyromonas gingivalis. J Periodontol 2017; 88:681-692. [PMID: 28398147 DOI: 10.1902/jop.2017.160464] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
BACKGROUND Salmeterol is a long-acting β2-adrenergic receptor agonist used to treat chronic obstructive pulmonary disease. The authors of the current study previously showed that preincubation of primary microglial-enriched cells with salmeterol could inhibit the inflammatory response induced by Escherichia coli lipopolysaccharide (LPS), a Toll-like receptor (TLR)-4 agonist. In this study, the authors sought to determine if salmeterol had a similar inhibitory effect on the inflammatory response of the murine macrophage cell line RAW264.7 and human monocyte THP-1 to LPS from Porphyromonas gingivalis (PgLPS), an oral microbe implicated in the pathogenesis of periodontal disease. METHODS RAW264.7 and THP-1 cells were pretreated with salmeterol, followed by PgLPS, and monitored for production of inflammatory mediators by enzyme-linked immunosorbent assay. The nitric oxide concentration and nuclear factor-kappa B (NF-κB) activity were measured by Griess method and secretory alkaline phosphatase reporter activity assay, respectively. Reverse-transcriptase polymerase chain reaction and immunoblot analysis were used to measure messenger RNA and protein levels. Nuclear translocation of NF-κB was detected by immunofluorescence. RESULTS Pretreatment with salmeterol significantly inhibited production of proinflammatory mediators by RAW264.7 and THP-1 cells. Salmeterol downregulated PgLPS-mediated phosphorylation of the extracellular signal-regulated kinase 1/2 and c-Jun N-terminal kinase but not p38 mitogen-activated protein kinases (MAPKs). Salmeterol also attenuated activation of NF-κB via inhibition of nuclear translocation of p65-NFκB, the transcriptional activity of NF-κB and IκBα phosphorylation. CONCLUSION Salmeterol can significantly inhibit activation of macrophage-mediated inflammation by PgLPS, suggesting that use of salmeterol may be an effective treatment in inhibiting or lessening the inflammatory response mediated through TLR pathway activation.
Collapse
Affiliation(s)
- Monika Sharma
- Department of Dentistry, Faculty of Medicine and Dentistry, Katz Group Center for Pharmacy and Health Research, University of Alberta, Edmonton, Alberta
| | - Lindsay Patterson
- Department of Dentistry, Faculty of Medicine and Dentistry, Katz Group Center for Pharmacy and Health Research, University of Alberta, Edmonton, Alberta
| | - Elisha Chapman
- Department of Dentistry, Faculty of Medicine and Dentistry, Katz Group Center for Pharmacy and Health Research, University of Alberta, Edmonton, Alberta
| | - Patrick M Flood
- Department of Dentistry, Faculty of Medicine and Dentistry, Katz Group Center for Pharmacy and Health Research, University of Alberta, Edmonton, Alberta
| |
Collapse
|
30
|
Seca AM, Silva AM, Pinto DC. Parthenolide and Parthenolide-Like Sesquiterpene Lactones as Multiple Targets Drugs. STUDIES IN NATURAL PRODUCTS CHEMISTRY 2017. [DOI: 10.1016/b978-0-444-63931-8.00009-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
|
31
|
Ho MH, Guo ZM, Chunga J, Goodwin JS, Xie H. Characterization of Innate Immune Responses of Human Endothelial Cells Induced by Porphyromonas gingivalis and Their Derived Outer Membrane Vesicles. Front Cell Infect Microbiol 2016; 6:139. [PMID: 27826542 PMCID: PMC5078693 DOI: 10.3389/fcimb.2016.00139] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2016] [Accepted: 10/10/2016] [Indexed: 12/13/2022] Open
Abstract
Atherosclerosis, a chronic inflammatory disease of the blood vessels, is one of the most common causes of morbidity and mortality world-wide. Involvement of Porphyromonas gingivalis in atherosclerosis is supported by observations from epidemiological, clinical, immunological, and molecular studies. Previously we reported that P. gingivalis vesicles have a much higher invasive efficiency than their originating cells. Here, we further compare the role of P. gingivalis cells and their vesicles in expression of chemoattractant proteins including CXCL1, CXCL2, and CXCL8, and adhesive molecules such as E-selectin in human umbilical vein endothelial cells (HUVECs). Both P. gingivalis 33277 cells and vesicles were able to up-regulate expression of these molecules, while the vesicles acted as more potent inducers of the inflammatory response associated with the development of atherosclerosis, consequently resulting in significant monocyte adhesion to a monolayer of HUVECs. Interestingly, we found that elevated expression of CXCL8 and E-selectin in endothelial cells induced by P. gingivalis correlated with the invasive ability of P. gingivalis cells and vesicles. Non-invasive bacterial cells and vesicles had no effect on expression of these genes. This study highlights the potential risk of P. gingivalis cells and vesicles in initiation of atherosclerosis and provides a potential target for the development of novel therapeutics against bacteria-associated atherosclerosis.
Collapse
Affiliation(s)
- Meng-Hsuan Ho
- Oral Biology, School of Dentistry, Meharry Medical CollegeNashville, TN, USA
| | - Zhong-Mao Guo
- Department of Physiology, Meharry Medical CollegeNashville, TN, USA
| | | | - J. Shawn Goodwin
- Department of Biochemistry and Cancer Biology, Meharry Medical CollegeNashville, TN, USA
| | - Hua Xie
- Oral Biology, School of Dentistry, Meharry Medical CollegeNashville, TN, USA
| |
Collapse
|
32
|
MicroRNAs: Potential Biomarkers and Therapeutic Targets for Alveolar Bone Loss in Periodontal Disease. Int J Mol Sci 2016; 17:ijms17081317. [PMID: 27529224 PMCID: PMC5000714 DOI: 10.3390/ijms17081317] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Revised: 07/24/2016] [Accepted: 08/03/2016] [Indexed: 12/14/2022] Open
Abstract
Periodontal disease is an inflammatory disease caused by bacterial infection of tooth-supporting structures, which results in the destruction of alveolar bone. Osteoclasts play a central role in bone destruction. Osteoclasts are tartrate-resistant acid phosphatase (TRAP)-positive multinucleated giant cells derived from hematopoietic stem cells. Recently, we and other researchers revealed that microRNAs are involved in osteoclast differentiation. MicroRNAs are novel, single-stranded, non-coding, small (20–22 nucleotides) RNAs that act in a sequence-specific manner to regulate gene expression at the post-transcriptional level through cleavage or translational repression of their target mRNAs. They regulate various biological activities such as cellular differentiation, apoptosis, cancer development, and inflammatory responses. In this review, the roles of microRNAs in osteoclast differentiation and function during alveolar bone destruction in periodontal disease are described.
Collapse
|
33
|
Song B, Zhang YL, Chen LJ, Zhou T, Huang WK, Zhou X, Shao LQ. The role of Toll-like receptors in periodontitis. Oral Dis 2016; 23:168-180. [PMID: 26923115 DOI: 10.1111/odi.12468] [Citation(s) in RCA: 76] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2015] [Revised: 02/08/2016] [Accepted: 02/21/2016] [Indexed: 12/14/2022]
Abstract
Periodontitis is a common infectious disease. Recent studies have indicated that the progression of periodontitis may be regulated by interactions between host immunity and periodontopathic bacteria. Although periodontopathic bacteria can destroy periodontal tissue, a dysfunctional host immune response triggered by the bacteria can lead to more severe and persistent destruction. Toll-like receptors (TLRs), a type of pattern recognition receptor (PRR) that recognizes pathogens, have been implicated in host innate immune responses to periodontopathic bacteria and in the activation of adaptive immunity. TLR-targeted drugs may hold promise to treat periodontal disease. This review summarizes recent studies on the role of TLRs in periodontitis and discusses areas needing further research. We believe TLRs may be an effective biomarker for the prevention, diagnosis, and treatment of periodontitis in the near future.
Collapse
Affiliation(s)
- B Song
- Guizhou Provincial People's Hospital, Guiyang, China.,Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Y L Zhang
- Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - L J Chen
- Key Laboratory of Oral Medicine, Guangzhou Institute of Oral Disease, Stomatology Hospital of Guangzhou Medical University, Guangzhou, China
| | - T Zhou
- Guizhou Provincial People's Hospital, Guiyang, China
| | - W K Huang
- Guizhou Provincial People's Hospital, Guiyang, China
| | - X Zhou
- Guizhou Provincial People's Hospital, Guiyang, China
| | - L Q Shao
- Nanfang Hospital, Southern Medical University, Guangzhou, China
| |
Collapse
|
34
|
Morin Attenuates Ovalbumin-Induced Airway Inflammation by Modulating Oxidative Stress-Responsive MAPK Signaling. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2015; 2016:5843672. [PMID: 26783416 PMCID: PMC4691473 DOI: 10.1155/2016/5843672] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/17/2015] [Revised: 09/12/2015] [Accepted: 09/13/2015] [Indexed: 02/07/2023]
Abstract
Asthma is one of the most common inflammatory diseases characterized by airway hyperresponsiveness, inflammation, and remodeling. Morin, an active ingredient obtained from Moraceae plants, has been demonstrated to have promising anti-inflammatory activities in a range of disorders. However, its impacts on pulmonary diseases, particularly on asthma, have not been clarified. This study was designed to investigate whether morin alleviates airway inflammation in chronic asthma with an emphasis on oxidative stress modulation. In vivo, ovalbumin- (OVA-) sensitized mice were administered with morin or dexamethasone before challenge. Bronchoalveolar lavage fluid (BALF) and lung tissues were obtained to perform cell counts, histological analysis, and enzyme-linked immunosorbent assay. In vitro, human bronchial epithelial cells (BECs) were challenged by tumor necrosis factor alpha (TNF-α). The supernatant was collected for the detection of the proinflammatory proteins, and the cells were collected for reactive oxygen species (ROS)/mitogen-activated protein kinase (MAPK) evaluations. Severe inflammatory responses and remodeling were observed in the airways of the OVA-sensitized mice. Treatment with morin dramatically attenuated the extensive trafficking of inflammatory cells into the BALF and inhibited their infiltration around the respiratory tracts and vessels. Morin administration also significantly suppressed goblet cell hyperplasia and collagen deposition/fibrosis and dose-dependently inhibited the OVA-induced increases in IgE, TNF-α, interleukin- (IL-) 4, IL-13, matrix metalloproteinase-9, and malondialdehyde. In human BECs challenged by TNF-α, the levels of proteins such as eotaxin-1, monocyte chemoattractant protein-1, IL-8 and intercellular adhesion molecule-1, were consistently significantly decreased by morin. Western blotting and the 2',7'-dichlorofluorescein assay revealed that the increases in intracellular ROS and MAPK phosphorylation were abolished by morin, implying that ROS/MAPK signaling contributes to the relief of airway inflammation. Our findings indicate for the first time that morin alleviates airway inflammation in chronic asthma, which probably occurs via the oxidative stress-responsive MAPK pathway, highlighting a novel profile of morin as a potent agent for asthma management.
Collapse
|
35
|
Josino Soares D, Walker J, Pignitter M, Walker JM, Imboeck JM, Ehrnhoefer-Ressler MM, Montenegro Brasil I, Somoza V. Pitanga (Eugenia uniflora L.) fruit juice and two major constituents thereof exhibit anti-inflammatory properties in human gingival and oral gum epithelial cells. Food Funct 2015; 5:2981-8. [PMID: 25228206 DOI: 10.1039/c4fo00509k] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Pitanga, Eugenia uniflora L., is a tropical fruit, which may be consumed as juice. While beneficial health effects of Eugenia uniflora L. leaf extracts have extensively been studied, limited data are available on an anti-inflammatory potential of pitanga juice. The aim of the presented study was to investigate anti-inflammatory properties of pitanga juice with regards to a prevention of inflammation-related periodontal diseases. For this purpose, six healthy volunteers swirled pitanga juice, containing 35% pitanga pulp, for 10 min. Thereafter, oral gum epithelial cells were harvested using a sterile brush and stimulated with lipopolysaccharides from Porphyromonas gingivalis (PG-LPS) for 6 h. Furthermore, human gingival fibroblasts (HGF-1) were used to elucidate the anti-inflammatory potential of pitanga juice constituents, cyanidin-3-glucoside and oxidoselina-1,3,7(11)-trien-8-one, in juice representative concentrations of 119 μg ml(-1) and 30 μg ml(-1), respectively. For the first time, an anti-inflammatory impact of pitanga juice on gingival epithelial cells was shown by means of an attenuation of IL-8 release by 55 ± 8.2% and 52 ± 11% in non-stimulated and PG-LPS-stimulated cells, respectively. In addition, both cyanidin-3-glucoside and oxidoselina-1,3,7(11)-trien-8-one reduced the LPS-stimulated CXCL8 mRNA expression by 50 ± 15% and 37 ± 18% and IL-8 release by 52 ± 9.9% and 45 ± 3.7% in HGF-1 cells, when concomitantly incubated with 10 μg ml(-1)PG-LPS for 6 h, revealing an anti-inflammatory potential of the volatile compound oxidoselina-1,3,7(11)-trien-8-one for the first time.
Collapse
Affiliation(s)
- Denise Josino Soares
- CAPES Foundation, Ministry of Education of Brazil, Brasília - DF 70040-020, Brazil.
| | | | | | | | | | | | | | | |
Collapse
|
36
|
Wan M, Liu JR, Wu D, Chi XP, Ouyang XY. E-selectin expression induced by Porphyromonas gingivalis in human endothelial cells via nucleotide-binding oligomerization domain-like receptors and Toll-like receptors. Mol Oral Microbiol 2015; 30:399-410. [PMID: 25939768 DOI: 10.1111/omi.12102] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/05/2015] [Indexed: 12/18/2022]
Abstract
Porphyromonas gingivalis, an important periodontal pathogen, has been proved to actively invade cells, induce endothelial cell activation, and promote development of atherosclerosis. Innate immune surveillance, which includes the activity of nucleotide-binding oligomerization domain (NOD)-like receptors (NLRs) and Toll-like receptors (TLRs), are essential for the control of microbial infections; however, the roles of receptor families in P. gingivalis infections remain unclear. Here, we examined the roles of NLRs and TLRs in endothelial cell activation caused by P. gingivalis. Live P. gingivalis and whole cell sonicates were used to stimulate endothelial cells, and both showed upregulation of E-selectin as well as NOD1, NOD2, and TLR2. In addition, silencing of these genes in endothelial cells infected with P. gingivalis led to a reduction in E-selectin expression. Porphyromonas gingivalis also induced nuclear factor-κB (NF-κB) and P38 mitogen-activated protein kinase (MAPK) activity in endothelial cells, whereas small interfering RNA targeting NOD1 significantly reduced these signals. Moreover, inhibition of either NOD2 or TLR2 inhibited NF-κB significantly, but had only a weak inhibitory effect on P38 MAPK signaling. Direct inhibition of NF-κB and P38 MAPK significantly attenuated E-selectin expression induced by P. gingivalis in endothelial cells. Taken together, these findings suggest that NOD1, NOD2, and TLR2 play important, non-redundant roles in endothelial cell activation following P. gingivalis infection.
Collapse
Affiliation(s)
- M Wan
- Department of Periodontology, Peking University School and Hospital of Stomatology, Beijing, China
| | - J R Liu
- Department of Periodontology, Peking University School and Hospital of Stomatology, Beijing, China
| | - D Wu
- Department of Periodontology, Peking University School and Hospital of Stomatology, Beijing, China.,Department of Stomatology, Bijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - X P Chi
- Department of Periodontology, Peking University School and Hospital of Stomatology, Beijing, China.,Department of VIP Dental Service, Peking University School and Hospital of Stomatology, Beijing, China
| | - X Y Ouyang
- Department of Periodontology, Peking University School and Hospital of Stomatology, Beijing, China
| |
Collapse
|
37
|
Induction of IL-6 and IL-8 by activation of thermosensitive TRP channels in human PDL cells. Arch Oral Biol 2014; 60:526-32. [PMID: 25575297 DOI: 10.1016/j.archoralbio.2014.12.014] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2014] [Revised: 12/12/2014] [Accepted: 12/18/2014] [Indexed: 11/22/2022]
Abstract
OBJECTIVE The oral cavity is often exposed to not only diverse external pathogens but also dramatic temperature changes. In this study, we investigated the effect of thermal stress on PDL cells with a focus on the inflammatory responses and bone homeostasis. DESIGN The PDL cells were isolated from healthy premolar extracted for orthodontic reasons, and examined using intracellular calcium concentration ([Ca(2+)]i) measurement and reverse transcription-polymerase chain reaction for pro-inflammatory cytokines and bone remodelling mediators. RESULTS We detected the expression of thermosensitive transient receptor potential (TRP) channels, such as TRPV1, TRPV2, TRPV3, TRPM8, and TRPA1. Functional activation of the channels by thermal stress and their specific agonists increased [Ca(2+)]i and interleukin (IL)-6 and IL-8 mRNA expression. A selective Ca(2+) chelator, BAPTA-AM, prevented TRP channel agonists-mediated IL-6 and IL-8 induction. Unlike pro-inflammatory cytokines, the expression of bone remodelling mediators, including receptor activator of nuclear factor-kappa B ligand and osteoprotegerin, was not altered by treatment with TRP channel agonists. CONCLUSIONS The activation of thermosensitive TRP channels induced IL-6 and IL-8 expression by increasing [Ca(2+)]i in human PDL cells. Therefore, thermal stress may play a critical role in the inflammatory responses of PDL cells.
Collapse
|
38
|
Dai L, DeFee MR, Cao Y, Wen J, Wen X, Noverr MC, Qin Z. Lipoteichoic acid (LTA) and lipopolysaccharides (LPS) from periodontal pathogenic bacteria facilitate oncogenic herpesvirus infection within primary oral cells. PLoS One 2014; 9:e101326. [PMID: 24971655 PMCID: PMC4074159 DOI: 10.1371/journal.pone.0101326] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2014] [Accepted: 06/05/2014] [Indexed: 02/03/2023] Open
Abstract
Kaposi's sarcoma (KS) remains the most common tumor arising in patients with HIV/AIDS, and involvement of the oral cavity represents one of the most common clinical manifestations of this tumor. HIV infection incurs an increased risk for periodontal diseases and oral carriage of a variety of bacteria. Whether interactions involving pathogenic bacteria and oncogenic viruses in the local environment facilitate replication or maintenance of these viruses in the oral cavity remains unknown. In the current study, our data indicate that pretreatment of primary human oral fibroblasts with two prototypical pathogen-associated molecular patterns (PAMPs) produced by oral pathogenic bacteria-lipoteichoic acid (LTA) and lipopolysaccharide (LPS), increase KSHV entry and subsequent viral latent gene expression during de novo infection. Further experiments demonstrate that the underlying mechanisms induced by LTA and/or LPS include upregulation of cellular receptor, increasing production of reactive oxygen species (ROS), and activating intracellular signaling pathways such as MAPK and NF-κB, and all of which are closely associated with KSHV entry or gene expression within oral cells. Based on these findings, we hope to provide the framework of developing novel targeted approaches for treatment and prevention of oral KSHV infection and KS development in high-risk HIV-positive patients.
Collapse
Affiliation(s)
- Lu Dai
- Research Center for Translational Medicine and Key Laboratory of Arrhythmias. East Hospital, Tongji University School of Medicine, Shanghai, China
- Department of Medicine, Louisiana State University Health Sciences Center, Louisiana Cancer Research Center, New Orleans, Louisiana, United States of America
| | - Michael R. DeFee
- Department of Oral Health Sciences, Medical University of South Carolina, Charleston, South Carolina, United States of America
| | - Yueyu Cao
- Research Center for Translational Medicine and Key Laboratory of Arrhythmias. East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Jiling Wen
- Department of Urology, East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Xiaofei Wen
- Department of Urology, East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Mairi C. Noverr
- Department of Oral and Craniofacial Biology, Louisiana State University Health Sciences Center, Louisiana Cancer Research Center, New Orleans, Louisiana, United States of America
| | - Zhiqiang Qin
- Research Center for Translational Medicine and Key Laboratory of Arrhythmias. East Hospital, Tongji University School of Medicine, Shanghai, China
- Department of Microbiology/Immunology/Parasitology, Louisiana State University Health Sciences Center, Louisiana Cancer Research Center, New Orleans, Louisiana, United States of America
| |
Collapse
|