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Wei X, Zhang X, Chen R, Li Y, Yang Y, Deng K, Cai Z, Lai H, Shi J. Impact of periodontitis on type 2 diabetes: a bioinformatic analysis. BMC Oral Health 2024; 24:635. [PMID: 38811930 PMCID: PMC11137885 DOI: 10.1186/s12903-024-04408-1] [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: 03/28/2024] [Accepted: 05/24/2024] [Indexed: 05/31/2024] Open
Abstract
BACKGROUND Periodontitis is strongly associated with type 2 diabetes (T2D) that results in serious complications and mortality. However, the pathogenic role of periodontitis in the development of T2D and the underlain mechanism have not been fully elucidated. METHODS A Mendelian randomization (MR) was performed to estimate the causality between two diseases. Bioinformatics tools, including gene ontology and pathway enrichment analyses, were employed to analyze the common differentially expressed genes (DEGs) in periodontitis and T2D. MR and colocalization analyses were then utilized to investigate the causal associations between potential pathogenic gene expression and the risk of T2D. Single cell-type expression analysis was further performed to detect the cellular localization of these genes. RESULTS Genetically predicted periodontitis was associated with a higher risk of T2D (OR, 1.469; 95% CI, 1.117-1.930; P = 0.006) and insulin resistance (OR 1.034; 95%CI 1.001-1.068; P = 0.041). 79 common DEGs associated with periodontitis and T2D were then identified and demonstrated enrichment mainly in CXC receptor chemokine receptor binding and interleutin-17 signaling pathway. The integration of GWAS with the expression quantitative trait locis of these genes from the peripheral blood genetically prioritized 6 candidate genes, including 2 risk genes (RAP2A, MCUR1) and 4 protective genes (WNK1, NFIX, FOS, PANX1) in periodontitis-related T2D. Enriched in natural killer cells, RAP2A (OR 4.909; 95% CI 1.849-13.039; P = 0.001) demonstrated high risk influence on T2D, and exhibited strong genetic evidence of colocalization (coloc.abf-PPH4 = 0.632). CONCLUSIONS This study used a multi-omics integration method to explore causality between periodontitis and T2D, and revealed molecular mechanisms using bioinformatics tools. Periodontitis was associated with a higher risk of T2D. MCUR1, RAP2A, FOS, PANX1, NFIX and WNK1 may play important roles in the pathogenesis of periodontitis-related T2D, shedding light on the development of potential drug targets.
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Affiliation(s)
- Xindi Wei
- Department of Oral and Maxillofacial Implantology, Shanghai PerioImplant Innovation Center, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine; College of Stomatology, Shanghai Jiao Tong University; National Center for Stomatology; National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology; Shanghai Research Institute of Stomatology, 639 Zhizaoju Road, Shanghai, 200011, China
| | - Xiaomeng Zhang
- Department of Oral and Maxillofacial Implantology, Shanghai PerioImplant Innovation Center, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine; College of Stomatology, Shanghai Jiao Tong University; National Center for Stomatology; National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology; Shanghai Research Institute of Stomatology, 639 Zhizaoju Road, Shanghai, 200011, China
| | - Ruiying Chen
- Department of Oral and Maxillofacial Implantology, Shanghai PerioImplant Innovation Center, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine; College of Stomatology, Shanghai Jiao Tong University; National Center for Stomatology; National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology; Shanghai Research Institute of Stomatology, 639 Zhizaoju Road, Shanghai, 200011, China
| | - Yuan Li
- Department of Oral and Maxillofacial Implantology, Shanghai PerioImplant Innovation Center, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine; College of Stomatology, Shanghai Jiao Tong University; National Center for Stomatology; National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology; Shanghai Research Institute of Stomatology, 639 Zhizaoju Road, Shanghai, 200011, China
| | - Yijie Yang
- Department of Oral and Maxillofacial Implantology, Shanghai PerioImplant Innovation Center, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine; College of Stomatology, Shanghai Jiao Tong University; National Center for Stomatology; National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology; Shanghai Research Institute of Stomatology, 639 Zhizaoju Road, Shanghai, 200011, China
| | - Ke Deng
- Division of Periodontology and Implant Dentistry, The Faulty of Dentistry, The University of Hong Kong, Hong Kong, 999077, China
| | - Zhengzhen Cai
- Department of Oral and Maxillofacial Implantology, Shanghai PerioImplant Innovation Center, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine; College of Stomatology, Shanghai Jiao Tong University; National Center for Stomatology; National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology; Shanghai Research Institute of Stomatology, 639 Zhizaoju Road, Shanghai, 200011, China
| | - Hongchang Lai
- Department of Oral and Maxillofacial Implantology, Shanghai PerioImplant Innovation Center, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine; College of Stomatology, Shanghai Jiao Tong University; National Center for Stomatology; National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology; Shanghai Research Institute of Stomatology, 639 Zhizaoju Road, Shanghai, 200011, China.
| | - Junyu Shi
- Department of Oral and Maxillofacial Implantology, Shanghai PerioImplant Innovation Center, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine; College of Stomatology, Shanghai Jiao Tong University; National Center for Stomatology; National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology; Shanghai Research Institute of Stomatology, 639 Zhizaoju Road, Shanghai, 200011, China.
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2
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Pan S, Yang L, Zhong W, Wang H, Lan Y, Chen Q, Yu S, Yang F, Yan P, Peng H, Liu X, Gao X, Song J. Integrated analyses revealed the potential role and immune link of mitochondrial dysfunction between periodontitis and type 2 diabetes mellitus. Int Immunopharmacol 2024; 130:111796. [PMID: 38452412 DOI: 10.1016/j.intimp.2024.111796] [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: 11/20/2023] [Revised: 02/20/2024] [Accepted: 02/29/2024] [Indexed: 03/09/2024]
Abstract
There is a reciprocal comorbid relationship between periodontitis and type 2 diabetes mellitus (T2DM). Recent studies have suggested that mitochondrial dysfunction (MD) could be the key driver underlying this comorbidity. The aim of this study is to provide novel understandings into the potential molecular mechanisms between MD and the comorbidity, and identify potential therapeutic targets for personalized clinical management. MD-related differentially expressed genes (MDDEGs) were identified. Enrichment analyses and PPI network analysis were then conducted. Six algorithms were used to explore the hub MDDEGs, and these were validated by ROC analysis and qRT-PCR. Co-expression and potential drug targeting analyses were then performed. Potential biomarkers were identified using LASSO regression. The immunocyte infiltration levels in periodontitis and T2DM were evaluated via CIBERSORTx and validated in mouse models. Subsequently, MD-related immune-related genes (MDIRGs) were screened by WGCNA. The in vitro experiment verified that MD was closely associated with this comorbidity. GO and KEGG analyses demonstrated that the connection between periodontitis and T2DM was mainly enriched in immuno-inflammatory pathways. In total, 116 MDDEGs, eight hub MDDEGs, and two biomarkers were identified. qRT-PCR revealed a distinct hub MDDEG expression pattern in the comorbidity group. Altered immunocytes in disease samples were identified, and their correlations were explored. The in vivo examination revealed higher infiltration levels of inflammatory immunocytes. The findings of this study provide insight into the mechanism underlying the gene-mitochondria-immunocyte network and provide a novel reference for future research into the function of mitochondria in periodontitis and T2DM.
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Affiliation(s)
- Shengyuan Pan
- College of Stomatology, Chongqing Medical University, Chongqing 401147, China; Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing 401147, China; Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401147, China.
| | - LanXin Yang
- College of Stomatology, Chongqing Medical University, Chongqing 401147, China; Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing 401147, China; Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401147, China.
| | - Wenjie Zhong
- College of Stomatology, Chongqing Medical University, Chongqing 401147, China; Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing 401147, China; Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401147, China.
| | - He Wang
- College of Stomatology, Chongqing Medical University, Chongqing 401147, China; Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing 401147, China; Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401147, China.
| | - Yuyan Lan
- College of Stomatology, Chongqing Medical University, Chongqing 401147, China; Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing 401147, China; Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401147, China.
| | - Qiyue Chen
- College of Stomatology, Chongqing Medical University, Chongqing 401147, China; Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing 401147, China; Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401147, China.
| | - Simin Yu
- College of Stomatology, Chongqing Medical University, Chongqing 401147, China; Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing 401147, China; Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401147, China.
| | - Fengze Yang
- College of Stomatology, Chongqing Medical University, Chongqing 401147, China; Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing 401147, China; Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401147, China.
| | - Pingping Yan
- College of Stomatology, Chongqing Medical University, Chongqing 401147, China; Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing 401147, China; Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401147, China.
| | - Houli Peng
- College of Stomatology, Chongqing Medical University, Chongqing 401147, China; Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing 401147, China; Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401147, China.
| | - Xuan Liu
- College of Stomatology, Chongqing Medical University, Chongqing 401147, China; Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing 401147, China; Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401147, China.
| | - Xiang Gao
- College of Stomatology, Chongqing Medical University, Chongqing 401147, China; Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing 401147, China; Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401147, China.
| | - Jinlin Song
- College of Stomatology, Chongqing Medical University, Chongqing 401147, China; Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing 401147, China; Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401147, China.
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Hach M, Hvidtfeldt UA, Christensen LB, Lange T, Danielsen B, Osler M, Diderichsen F, Andersen I. Underlying pathways of social inequality in tooth loss: the mediating role of sugary beverages and diabetes. Scand J Public Health 2023:14034948231173744. [PMID: 37184274 DOI: 10.1177/14034948231173744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
BACKGROUND Previous studies show social inequality in tooth loss, but the underlying pathways are not well understood. The aim was to investigate the mediated proportion of sugary beverages (SBs) and diabetes and the association between educational level and tooth loss, and to investigate whether the indirect effect of SBs and diabetes varied between educational groups in relation to tooth loss. METHODS Data from 47,109 Danish men and women aged 50 years or older included in the Danish Diet, Cancer and Health Study was combined with data from Danish registers. Using natural effect models, SBs and diabetes were considered as mediators, and tooth loss was defined as having <15 teeth present. RESULTS In total, 10,648 participants had tooth loss. The analyses showed that 3% (95% confidence interval 2-4%) of the social inequality in tooth loss was mediated through SBs and diabetes. The mediated proportion was mainly due to differential exposure to SBs and diabetes among lower educational groups. CONCLUSIONS
The findings show that SBs and diabetes to a minor degree contribute to tooth-loss inequalities. The explanation indicates that individuals in lower educational groups have higher consumption of SBs and more often suffer from diabetes than higher educational groups.
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Affiliation(s)
- Maria Hach
- School of Oral Health Care, Faculty of Health and Medical Sciences, University of Copenhagen, Denmark
| | - Ulla A Hvidtfeldt
- Diet, Genes and Environment, Danish Cancer Society Research Center, Denmark
| | - Lisa B Christensen
- Department of Odontology, Faculty of Health and Medical Sciences, University of Copenhagen, Denmark
| | - Theis Lange
- Section of Biostatistics, Faculty of Health and Medical Sciences, University of Copenhagen, Denmark
| | - Bo Danielsen
- School of Oral Health Care, Faculty of Health and Medical Sciences, University of Copenhagen, Denmark
| | - Merete Osler
- Center for Clinical Research and Prevention, Frederiksberg/Bispebjerg Hospitals and Section of Epidemiology, Department of Public Health, Faculty of Health and Medical Sciences, University of Copenhagen, Denmark
| | - Finn Diderichsen
- Department of Public Health, University of Copenhagen, Denmark and Oswaldo Cruz Foundation, Brazil
| | - Ingelise Andersen
- Section of Social Medicine, Department of Public Health, Faculty of Health and Medical Sciences, University of Copenhagen, Denmark
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4
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He J, Shen X, Fu D, Yang Y, Xiong K, Zhao L, Xie H, Pelekos G, Li Y. Human periodontitis-associated salivary microbiome affects the immune response of diabetic mice. J Oral Microbiol 2022; 14:2107814. [PMID: 35958276 PMCID: PMC9359160 DOI: 10.1080/20002297.2022.2107814] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Background The bidirectional association between periodontitis and diabetes mellitus has been well accepted; however, pathways connecting them remain unclear. Some oral bacteria are able to induce immunologic changes favoring insulin resistance individually. However, it is unclear if and how the systemic immune system responds to a disturbed oral microbial community in diabetic sufferers. Aim This study aimed to investigate the impact of the human periodontitis-associated salivary microbiome on the splenic immune responses of diabetic mice. Methods An in vivo diabetic animal model was established by feeding high fat food. After microbial depletion with quadruple antibiotic treatment, human saliva from healthy and periodontitis volunteers was transplanted into the mouth of these diabetic mice (N = 3), respectively. Results Osteoclasts and expression levels of TNF-α and IL-1β were significantly increased in periodontal tissues of mice receiving periodontitis patients donated microbiome compared to these transplanted with healthy subjects donated microbiome. The proportion of monocyte (an innate immunocyte) decreased in mice receiving periodontitis patients donated microbiome. However, the abundance of an adaptive immunocyte Th17 was up-regulated. The IL17 production of ILC3 cells in human periodontitis-associated salivary microbiome recipient mice was significantly impaired. Conclusions A disturbed oral microbiome imposes a stress on the splenic immune responses of diabetic mice.
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Affiliation(s)
- Jinzhi He
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Chengdu, Sichuan, China
- Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Xin Shen
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Chengdu, Sichuan, China
| | - Di Fu
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Chengdu, Sichuan, China
| | - Yutao Yang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Chengdu, Sichuan, China
| | - Kaixin Xiong
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Chengdu, Sichuan, China
| | - Lei Zhao
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Chengdu, Sichuan, China
| | - Huixu Xie
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Chengdu, Sichuan, China
| | - Georege Pelekos
- Faculty of Dentistry, The University of Hong Kong, Hong Kong, China
| | - Yan Li
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Chengdu, Sichuan, China
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5
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Pugh GH, Fouladvand S, SantaCruz-Calvo S, Agrawal M, Zhang XD, Chen J, Kern PA, Nikolajczyk BS. T cells dominate peripheral inflammation in a cross-sectional analysis of obesity-associated diabetes. Obesity (Silver Spring) 2022; 30:1983-1994. [PMID: 36069294 PMCID: PMC9509440 DOI: 10.1002/oby.23528] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 05/16/2022] [Accepted: 06/07/2022] [Indexed: 11/10/2022]
Abstract
OBJECTIVE Myeloid cells dominate metabolic disease-associated inflammation (metaflammation) in mouse obesity, but the contributions of myeloid cells to the peripheral inflammation that fuels sequelae of human obesity are untested. This study used unbiased approaches to rank contributions of myeloid and T cells to peripheral inflammation in people with obesity across the spectrum of metabolic health. METHODS Peripheral blood mononuclear cells (PBMCs) from people with obesity with or without prediabetes or type 2 diabetes were stimulated with T cell-targeting CD3/CD28 or myeloid-targeting lipopolysaccharide for 20 to 72 hours to assess cytokine production using Bio-Plex. Bioinformatic modeling ranked cytokines with respect to their predictive power for metabolic health. Intracellular tumor necrosis factor α was quantitated as a classical indicator of metaflammation. RESULTS Cytokines increased over 72 hours following T cell-, but not myeloid-, targeted stimulation to indicate that acute myeloid inflammation may shift to T cell inflammation over time. T cells contributed more tumor necrosis factor α to peripheral inflammation regardless of metabolic status. Bioinformatic combination of cytokines from all cohorts, stimuli, and time points indicated that T cell-targeted stimulation was most important for differentiating inflammation in diabetes, consistent with previous identification of a mixed T helper type 1/T helper type 17 cytokine profile in diabetes. CONCLUSIONS T cells dominate peripheral inflammation in obesity; therefore, targeting T cells may be an effective approach for prevention/management of metaflammation.
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Affiliation(s)
- Gabriella H. Pugh
- Department of Microbiology, Immunology, & Molecular
Genetics, University of Kentucky Lexington, Kentucky, USA
| | - Sajjad Fouladvand
- Department of Computer Science, University of Kentucky
Lexington, Kentucky, USA
| | - Sara SantaCruz-Calvo
- Department of Pharmacology and Nutritional Sciences,
University of Kentucky Lexington, Kentucky, USA
| | - Madhur Agrawal
- Department of Pharmacology and Nutritional Sciences,
University of Kentucky Lexington, Kentucky, USA
| | | | - Jin Chen
- Department of Computer Science, University of Kentucky
Lexington, Kentucky, USA
| | - Philip A. Kern
- Department of Internal Medicine, University of Kentucky
Lexington, Kentucky, USA
- Barnstable Brown Diabetes Center, University of Kentucky
Lexington, Kentucky, USA
| | - Barbara S. Nikolajczyk
- Department of Microbiology, Immunology, & Molecular
Genetics, University of Kentucky Lexington, Kentucky, USA
- Department of Pharmacology and Nutritional Sciences,
University of Kentucky Lexington, Kentucky, USA
- Barnstable Brown Diabetes Center, University of Kentucky
Lexington, Kentucky, USA
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6
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Tang B, Yan C, Shen X, Li Y. The bidirectional biological interplay between microbiome and viruses in periodontitis and type-2 diabetes mellitus. Front Immunol 2022; 13:885029. [PMID: 36131931 PMCID: PMC9483123 DOI: 10.3389/fimmu.2022.885029] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2022] [Accepted: 08/19/2022] [Indexed: 11/13/2022] Open
Abstract
Periodontitis was an inflammatory disease associated with a dysbiosis of the oral flora characterized by a chronic sustained inflammation inducing the resorption of alveolar bone and leading to tooth loss. Type 2 diabetes mellitus (T2D) was a metabolic disease caused by impaired insulin action. The oral microbiome played a crucial role in modulating both the innate and adaptive immune system during the trigger and exacerbation of periodontitis and T2D. The bidirectional relationship of T2D and periodontitis had been the focus of intensive research, but those were not well explored. In this commentary, an in-depth analysis of the changes of microbiome and bacterial metabolites in periodontitis with or without diabetes was described. The promotion of periodontitis to T2D might involve inflammatory factors/receptors, oxidative stress, microRNA and so on. The effect of diabetes on periodontitis might involve adipose factor pathway, AGE/RAGE and RANK/RANKL pathway etc. Generally, periodontitis and diabetes are closely related to the microecological-epithelial interaction, soft tissue degradation, bone coupling disorder, immune regulation and gene transcription. The viruses, including HBV, HCV, HSV-1, Coronavirus, HCMV, EBV, HIV, phageome and so on, played an important role in the development of T2D and periodontitis. An in-depth understanding of the relationship between microbiome and host was of great significance to clarify the bidirectional mechanisms, suggesting that the periodontitis or T2D remission will have a positive impact on the other.
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Affiliation(s)
- Boyu Tang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Caixia Yan
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Xin Shen
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yan Li
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- *Correspondence: Yan Li,
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7
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Xu X, Zhang T, Xia X, Yin Y, Yang S, Ai D, Qin H, Zhou M, Song J. Pyroptosisin periodontitis: From the intricate interaction with apoptosis, NETosis, and necroptosis to the therapeutic prospects. Front Cell Infect Microbiol 2022; 12:953277. [PMID: 36093182 PMCID: PMC9450806 DOI: 10.3389/fcimb.2022.953277] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Accepted: 07/18/2022] [Indexed: 11/20/2022] Open
Abstract
Periodontitis is highly prevalent worldwide. It is characterized by periodontal attachment and alveolar bone destruction, which not only leads to tooth loss but also results in the exacerbation of systematic diseases. As such, periodontitis has a significant negative impact on the daily lives of patients. Detailed exploration of the molecular mechanisms underlying the physiopathology of periodontitis may contribute to the development of new therapeutic strategies for periodontitis and the associated systematic diseases. Pyroptosis, as one of the inflammatory programmed cell death pathways, is implicated in the pathogenesis of periodontitis. Progress in the field of pyroptosis has greatly enhanced our understanding of its role in inflammatory diseases. This review first summarizes the mechanisms underlying the activation of pyroptosis in periodontitis and the pathological role of pyroptosis in the progression of periodontitis. Then, the crosstalk between pyroptosis with apoptosis, necroptosis, and NETosis in periodontitis is discussed. Moreover, pyroptosis, as a novel link that connects periodontitis with systemic disease, is also reviewed. Finally, the current challenges associated with pyroptosis as a potential therapeutic target for periodontitis are highlighted.
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Affiliation(s)
- Xiaohui Xu
- College of Stomatology, Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Tingwei Zhang
- College of Stomatology, Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Xuyun Xia
- Department of Endocrinology, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Yuanyuan Yin
- College of Stomatology, Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Sihan Yang
- College of Stomatology, Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Dongqing Ai
- College of Stomatology, Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Han Qin
- College of Stomatology, Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Mengjiao Zhou
- College of Stomatology, Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Jinlin Song
- College of Stomatology, Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
- *Correspondence: Jinlin Song,
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8
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Liu J, Zhang D, Cao Y, Zhang H, Li J, Xu J, Yu L, Ye S, Yang L. Screening of crosstalk and pyroptosis-related genes linking periodontitis and osteoporosis based on bioinformatics and machine learning. Front Immunol 2022; 13:955441. [PMID: 35990678 PMCID: PMC9389017 DOI: 10.3389/fimmu.2022.955441] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2022] [Accepted: 07/11/2022] [Indexed: 11/13/2022] Open
Abstract
Background and objective This study aimed to identify crosstalk genes between periodontitis (PD) and osteoporosis (OP) and potential relationships between crosstalk and pyroptosis-related genes. Methods PD and OP datasets were downloaded from the GEO database and were performed differential expression analysis to obtain DEGs. Overlapping DEGs got crosstalk genes linking PD and OP. Pyroptosis-related genes were obtained from literature reviews. Pearson coefficients were used to calculate crosstalk and pyroptosis-related gene correlations in the PD and OP datasets. Paired genes were obtained from the intersection of correlated genes in PD and OP. PINA and STRING databases were used to conduct the crosstalk-bridge-pyroptosis genes PPI network. The clusters in which crosstalk and pyroptosis-related genes were mainly concentrated were defined as key clusters. The key clusters' hub genes and the included paired genes were identified as key crosstalk-pyroptosis genes. Using ROC curve analysis and XGBoost screened key genes. PPI subnetwork, gene-biological process and gene-pathway networks were constructed based on key genes. In addition, immune infiltration was analyzed on the PD dataset using the CIBERSORT algorithm. Results A total of 69 crosstalk genes were obtained. 13 paired genes and hub genes TNF and EGFR in the key clusters (cluster2, cluster8) were identified as key crosstalk-pyroptosis genes. ROC and XGBoost showed that PRKCB, GSDMD, ARMCX3, and CASP3 were more accurate in predicting disease than other key crosstalk-pyroptosis genes while better classifying properties as a whole. KEGG analysis showed that PRKCB, GSDMD, ARMCX3, and CASP3 were involved in neutrophil extracellular trap formation and MAPK signaling pathway pathways. Immune infiltration results showed that all four key genes positively correlated with plasma cells and negatively correlated with T cells follicular helper, macrophages M2, and DCs. Conclusion This study shows a joint mechanism between PD and OP through crosstalk and pyroptosis-related genes. The key genes PRKCB, GSDMD, ARMCX3, and CASP3 are involved in the neutrophil extracellular trap formation and MAPK signaling pathway, affecting both diseases. These findings may point the way to future research.
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Affiliation(s)
- Jia Liu
- Department of Orthodontics, Hospital of Stomatology, Jilin University, Changchun, China
| | - Ding Zhang
- Department of Spine Surgery, China-Japan Union Hospital, Jilin University, Changchun, China
| | - Yu Cao
- Department of Orthodontics, Hospital of Stomatology, Jilin University, Changchun, China
| | - Huichao Zhang
- Department of Orthodontics, Hospital of Stomatology, Jilin University, Changchun, China
| | - Jianing Li
- Department of Endodontics, Hospital of Stomatology, Jilin University, Changchun, China
| | - Jingyu Xu
- Department of Orthodontics, Hospital of Stomatology, Jilin University, Changchun, China
| | - Ling Yu
- Department of Orthodontics, Hospital of Stomatology, Jilin University, Changchun, China
| | - Surong Ye
- Department of Orthodontics, Hospital of Stomatology, Jilin University, Changchun, China
| | - Luyi Yang
- Department of Orthodontics, Hospital of Stomatology, Jilin University, Changchun, China
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9
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Wang Q, Lin W, Zhou X, Lei K, Xu R, Zhang X, Xiong Q, Sheng R, Song W, Liu W, Wang Q, Yuan Q. Single-Cell Transcriptomic Atlas of Gingival Mucosa in Type 2 Diabetes. J Dent Res 2022; 101:1654-1664. [PMID: 35656582 DOI: 10.1177/00220345221092752] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
The oral gingival barrier is a constantly stimulated and dynamic environment where homeostasis is often disrupted, resulting in inflammatory periodontal diseases. Type 2 diabetes (T2D) has been reported to be associated with gingival barrier dysfunction, but the effect and underlying mechanism are inconclusive. Herein, we performed single-cell RNA sequencing (scRNA-seq) of gingiva from leptin receptor-deficient mice (db/db) to examine the gingival heterogeneity in the context of T2D. Periodontal health of control mice is characterized by populations of Krt14+-expressing epithelial cells and Col1a1+-fibroblasts mediating immune homeostasis primarily through the enrichment of innate lymphoid cells. The db/db gingiva exhibited decreased epithelial/stromal ratio and dysfunctional barrier. We further observed stromal, particularly fibroblast immune hyperresponsiveness, linked to the recruitment of myeloid-derived cells at the db/db gingiva. Both scRNA-seq and histological analysis suggested the inflammatory signaling between fibroblasts and neutrophils as a potential driver of diabetes-induced periodontal damage. Notably, the "immune-like" stromal cells were wired toward the induction of gingival γδ T hyperresponsiveness in db/db mice. Our work reveals that the "immune-like" fibroblasts with transcriptional diversity are involved in the innate immune homeostasis at the diabetic gingiva. It highlights a potentially significant role of these cell types in its pathogenesis.
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Affiliation(s)
- Q Wang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - W Lin
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - X Zhou
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - K Lei
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - R Xu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - X Zhang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Q Xiong
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - R Sheng
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - W Song
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - W Liu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Q Wang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Q Yuan
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
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10
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Kwack K, Zhang L, Sohn J, Maglaras V, Thiyagarajan R, Kirkwood K. Novel Preosteoclast Populations in Obesity-Associated Periodontal Disease. J Dent Res 2022; 101:348-356. [PMID: 34636272 PMCID: PMC8982008 DOI: 10.1177/00220345211040729] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Although there is a clear relationship between the degree of obesity and periodontal disease incidence, the mechanisms that underpin the links between these conditions are not completely understood. Understanding that myeloid-derived suppressor cells (MDSCs) are expanded during obesity and operate in a context-defined manner, we addressed the potential role of MDSCs to contribute toward obesity-associated periodontal disease. Flow cytometry revealed that in the spleen of mice fed a high-fat diet (HFD), expansion in monocytic MDSCs (M-MDSCs) significantly increased when compared with mice fed a low-fat diet (LFD). In the osteoclast differentiation assay, M-MDSCs isolated from the bone marrow of HFD-fed mice showed a larger number and area of osteoclasts with a greater number of nuclei. In the M-MDSCs of HFD-fed mice, several osteoclast-related genes were significantly elevated when compared with LFD-fed mice according to a focused transcriptomic platform. In experimental periodontitis, the number and percentage of M-MDSCs were greater, with a significantly larger increase in HFD-fed mice versus LFD-fed mice. In the spleen, the percentage of M-MDSCs was significantly higher in HFD-fed periodontitis-induced (PI) mice than in LFD-PI mice. Alveolar bone volume fraction was significantly reduced in experimental periodontitis and was further decreased in HFD-PI mice as compared with LFD-PI mice. The inflammation score was significantly higher in HFD-PI mice versus LFD-PI mice, with a concomitant increase in TRAP staining for osteoclast number and area in HFD-PI mice over LFD-PI mice. These data support the concept that M-MDSC expansion during obesity to become osteoclasts during periodontitis is related to increased alveolar bone destruction, providing a more detailed mechanistic appreciation of the interconnection between obesity and periodontitis.
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Affiliation(s)
- K.H. Kwack
- Department of Oral Biology,
University at Buffalo, Buffalo, NY, USA
| | - L. Zhang
- Department of Oral Biology,
University at Buffalo, Buffalo, NY, USA
| | - J. Sohn
- Department of Oral Biology,
University at Buffalo, Buffalo, NY, USA,Department of Medicine,
University at Buffalo, Buffalo, NY, USA,Department of Genetics, Genomics,
and Bioinformatics Program, University at Buffalo, Buffalo, NY, USA
| | - V. Maglaras
- Department of Oral Biology,
University at Buffalo, Buffalo, NY, USA
| | - R. Thiyagarajan
- Department of Medicine,
University at Buffalo, Buffalo, NY, USA,Research Service, Western New
York Veterans Affairs Healthcare Service, Buffalo, NY, USA
| | - K.L. Kirkwood
- Department of Oral Biology,
University at Buffalo, Buffalo, NY, USA,Department of Head and
Neck/Plastic and Reconstructive Surgery, Roswell Park Comprehensive Cancer
Center, Buffalo, NY, USA,K.L. Kirkwood, Department of Oral
Biology, School of Dental Medicine, University at Buffalo, The State
University of New York, 645 Biomedical Research Building, 3435 Main
St, Buffalo, NY 14214-8006, USA.
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11
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Kwack KH, Maglaras V, Thiyagarajan R, Zhang L, Kirkwood KL. Myeloid-derived suppressor cells in obesity-associated periodontal disease: A conceptual model. Periodontol 2000 2021; 87:268-275. [PMID: 34463977 DOI: 10.1111/prd.12384] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Periodontitis is a common chronic inflammatory disease characterized by destruction of the supporting structures of the teeth. Severe periodontitis is highly prevalent-affecting 10%-15% of adults-and carries several negative comorbidities, thus reducing quality of life. Although a clear relationship exists between severity of obesity and incidence of periodontal disease, the biologic mechanisms that support this link are incompletely understood. In this conceptual appraisal, a new "two-hit" model is presented to explain obesity-exacerbated periodontal bone loss. This proposed model recognizes a previously unappreciated aspect of myeloid-derived suppressor cell population expansion, differentiation, and activity that can participate directly in periodontal bone loss, providing new mechanistic and translational perspectives.
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Affiliation(s)
- Kyu Hwan Kwack
- Department of Oral Biology, University at Buffalo, Buffalo, New York, USA
| | - Victoria Maglaras
- Department of Oral Biology, University at Buffalo, Buffalo, New York, USA
| | - Ramkumar Thiyagarajan
- Division of Geriatrics and Palliative Medicine, University at Buffalo, Buffalo, New York, USA.,Research Service, Western New York Veterans Affairs Healthcare Service, Buffalo, New York, USA
| | - Lixia Zhang
- Department of Oral Biology, University at Buffalo, Buffalo, New York, USA
| | - Keith L Kirkwood
- Department of Oral Biology, University at Buffalo, Buffalo, New York, USA.,Department of Head and Neck/Plastic and Reconstructive Surgery, Buffalo, New York, USA
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12
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Yao Y, Liu W, Li J, Zhou M, Qu C, Wang K. MPI-based bioinformatic analysis and co-inhibitory therapy with mannose for oral squamous cell carcinoma. Med Oncol 2021; 38:103. [PMID: 34313879 DOI: 10.1007/s12032-021-01552-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Accepted: 07/20/2021] [Indexed: 02/05/2023]
Abstract
Mannose induces tumor cell apoptosis and inhibits glucose metabolism by accumulating intracellularly as mannose 6-phosphate while the drug sensitivity of tumors is negatively correlated with mannose phosphate isomerase gene (MPI) expression. In this study, we performed a first attempt to explore the relationship between the targeted gene MPI and immune infiltration and genetic and clinical characteristics of head and neck squamous carcinoma (HNSC) using computational algorithms and bioinformatic analysis, and further to verify the co-inhibition effects of mannose with genotoxicity, immune responses, and microbes dysbiosis in oral squamous cell carcinoma (OSCC) in vitro and in vivo. Our results found that patients with lower MPI expression had higher survival rate. The enhancement of MPI expression was in response to DNA damage gene, and ATM inhibitor was verified as a potential drug with a synergistic effect with mannose on HSC-3. In the HNSC, infiltrated immunocytes CD8+ T cell and B cell were the significantly reduced risk cells, while IL-22 and IFN-γ showed negative correlation with MPI. Finally, mannose could reverse immunophenotyping caused by antibiotics in mice, resulting in the decrease of CD8+ T cells and increase of myeloid-derived suppressor cells (MDSCs). In conclusion, the MPI gene showed a significant correlation with immune infiltration and genetic and clinical characteristics of HNSC. The treatment of ATM inhibitor, immune regulating cells of CD8+ T cells and MDSCs, and oral microbiomes in combination with mannose could exhibit co-inhibitory therapeutic effect for OSCC.
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Affiliation(s)
- Yufei Yao
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, No. 14 Renmin South Road, Chengdu, 610041, Sichuan, People's Republic of China
| | - Wei Liu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, No. 14 Renmin South Road, Chengdu, 610041, Sichuan, People's Republic of China
| | - Jia Li
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, No. 14 Renmin South Road, Chengdu, 610041, Sichuan, People's Republic of China
| | - Maolin Zhou
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, No. 14 Renmin South Road, Chengdu, 610041, Sichuan, People's Republic of China
| | - Changxing Qu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, No. 14 Renmin South Road, Chengdu, 610041, Sichuan, People's Republic of China
| | - Kun Wang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, No. 14 Renmin South Road, Chengdu, 610041, Sichuan, People's Republic of China.
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13
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Ahn JS, Yang JW, Oh SJ, Shin YY, Kang MJ, Park HR, Seo Y, Kim HS. Porphyromonas gingivalis exacerbates the progression of fatty liver disease via CD36-PPARγ pathway. BMB Rep 2021. [PMID: 34078528 PMCID: PMC8249874 DOI: 10.5483/bmbrep.2021.54.6.050] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Periodontal diseases have been reported to have a multidirectional association with metabolic disorders. We sought to investigate the correlation between periodontitis and diabetes or fatty liver disease using HFD-fed obese mice inoculated with P. gingivalis. Body weight, alveolar bone loss, serological biochemistry, and glucose level were determined to evaluate the pathophysiology of periodontitis and diabetes. For the evaluation of fatty liver disease, hepatic nonalcoholic steatohepatitis (NASH) was assessed by scoring steatosis, inflammation, hepatocyte ballooning and the crucial signaling pathways involved in liver metabolism were analyzed. The C-reactive protein (CRP) level and NASH score in P. gingivalis-infected obese mice were significantly elevated. Particularly, the extensive lobular inflammation was observed in the liver of obese mice infected with P. gingivalis. Moreover, the expression of metabolic regulatory factors, including peroxisome proliferator-activated receptor γ (Pparγ) and the fatty acid transporter Cd36, was up-regulated in the liver of P. gingivalis-infected obese mice. However, inoculation of P. gingivalis had no significant influence on glucose homeostasis, insulin resistance, and hepatic mTOR/AMPK signaling. In conclusion, our results indicate that P. gingivalis can induce the progression of fatty liver disease in HFD-fed mice through the upregulation of CD36-PPARγ axis.
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Affiliation(s)
- Ji-Su Ahn
- Department of Life Science in Dentistry, School of Dentistry, Pusan National University, Yangsan 50612, Korea
- Department of Oral Biochemistry, School of Dentistry, Pusan National University, Yangsan 50612, Korea
| | - Ji Won Yang
- Department of Life Science in Dentistry, School of Dentistry, Pusan National University, Yangsan 50612, Korea
- Department of Oral Biochemistry, School of Dentistry, Pusan National University, Yangsan 50612, Korea
| | - Su-Jeong Oh
- Department of Life Science in Dentistry, School of Dentistry, Pusan National University, Yangsan 50612, Korea
- Department of Oral Biochemistry, School of Dentistry, Pusan National University, Yangsan 50612, Korea
| | - Ye Young Shin
- Department of Life Science in Dentistry, School of Dentistry, Pusan National University, Yangsan 50612, Korea
- Department of Oral Biochemistry, School of Dentistry, Pusan National University, Yangsan 50612, Korea
| | - Min-Jung Kang
- Periodontal Disease Signaling Network Research Center, Dental & Life Science Institute, Pusan National University, Yangsan 50612, Korea
| | - Hae Ryoun Park
- Periodontal Disease Signaling Network Research Center, Dental & Life Science Institute, Pusan National University, Yangsan 50612, Korea
- Department of Oral Pathology, School of Dentistry, Pusan National University, Yangsan 50612, Korea
| | - Yoojin Seo
- Periodontal Disease Signaling Network Research Center, Dental & Life Science Institute, Pusan National University, Yangsan 50612, Korea
| | - Hyung-Sik Kim
- Department of Life Science in Dentistry, School of Dentistry, Pusan National University, Yangsan 50612, Korea
- Department of Oral Biochemistry, School of Dentistry, Pusan National University, Yangsan 50612, Korea
- Periodontal Disease Signaling Network Research Center, Dental & Life Science Institute, Pusan National University, Yangsan 50612, Korea
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14
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Mannakandath ML, Kamran MA, Udeabor SE, Hameed MS, Ajmal M, Alshahrani I. Effect of ultrasonic scaling with adjunctive photodynamic therapy on the treatment of gingival inflammation among diabetic patients undergoing fixed orthodontic treatment. Photodiagnosis Photodyn Ther 2021; 35:102360. [PMID: 34052421 DOI: 10.1016/j.pdpdt.2021.102360] [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: 02/22/2021] [Revised: 05/02/2021] [Accepted: 05/21/2021] [Indexed: 02/08/2023]
Abstract
BACKGROUND The aim of the present clinical trial was to evaluate the effect of methylene blue-mediated antimicrobial photodynamic therapy (aPDT) on the gingival and immunological parameters in diabetic adolescent patients undergoing fixed orthodontic treatment. METHODS The selected 40 participants were randomized equally into two groups; Group I (ultrasonic scaling + oral hygiene instructions) and Group II (ultrasonic scaling/oral hygiene instructions + aPDT). Serum HbA1c levels was assessed for all the participants at chairside. Plaque index (Pi), and bleeding on probing (BOP) were analyzed. Moreover, the assessment of crevicular fluid matrix metalloproteinase 8 (MMP-8) and macrophage inflammatory protein 1 alpha (MIP-1α) was performed using enzyme-linked immunosorbent assay technique. All measurements were recorded at baseline, 6 weeks, and 12 weeks follow-up periods, respectively. Intergroup comparisons for p-value were computed using Mann-Whitney test and Wilcoxon singed ranks test to compute p-value for intra-group comparisons. Stepwise logistic regression analysis was used to identify explanatory variables for reduction in plaque scores and bleeding on probing, after controlling for the effects of other covariates. Odds ratios and 95% confidence intervals were used to assess the direction and strength for associations. Significance level was set at 5% for all analyses. RESULTS All 40 individuals completed the clinical trial. There was a statistically significant reduction in Pi and BOP in both Group I and Group II from baseline to 12 weeks of follow up (P<0.05). However, there was slight reduction in the plaque scores in Group-II as compared to Group-I at 12 weeks visit (P<0.05). There was also a statistically significant difference for BOP when Group-I was compared with Group-II on 12 weeks follow up assessment (P<0.05). HbA1c assessment indicated no statistically significant difference either within or between groups at any time point (P>0.05). Both MMP-8 and MIP-1α reported a significant decrease for both Groups I and II at 6 weeks and 12 weeks follow-up periods in comparison to baseline (P<0.05). Inter-group comparison indicated a statistically significant difference noted at both 6 weeks follow up that was maintained at 12 weeks follow up (P<0.05). The logistic regression analysis revealed that even after controlling the mean BMI as a predictor, the change of biomarker levels along with the improvement in plaque scores and bleeding on probing was not significant (p> 0.05). CONCLUSION aPDT significantly improved bleeding on probing and proinflammatory biomarkers among diabetic adolescent patients undergoing fixed orthodontic therapy.
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Affiliation(s)
- Master Luqman Mannakandath
- Department of Oral Diagnosis and Oral Biology, College of Dentistry, King Khalid University, Abha, Saudi Arabia
| | - Muhammad Abdullah Kamran
- Department of Pediatric and Orthodontic Sciences, College of Dentistry, King Khalid University, Abha, Saudi Arabia.
| | - Samuel Ebele Udeabor
- Department of Oral and Maxillofacial Surgery, College of Dentistry, King Khalid University, Abha, Saudi Arabia
| | - Mohammad Shahul Hameed
- Department of Diagnostic Sciences and Oral Biology, College of Dentistry, King Khalid University, Abha, Saudi Arabia
| | - Muhammed Ajmal
- Department of Diagnostic Sciences and Oral Biology, College of Dentistry, King Khalid University, Abha, Saudi Arabia
| | - Ibrahim Alshahrani
- Department of Pediatric and Orthodontic Sciences, College of Dentistry, King Khalid University, Abha, Saudi Arabia
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15
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Chen ZY, Xu TT, Liang ZJ, Zhao L, Xiong XQ, Xie KK, Yu WX, Zeng XW, Gao J, Zhou YH, Luo G, Yu T. Untargeted and targeted gingival metabolome in rodents reveal metabolic links between high-fat diet-induced obesity and periodontitis. J Clin Periodontol 2021; 48:1137-1148. [PMID: 33998036 DOI: 10.1111/jcpe.13486] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 04/19/2021] [Accepted: 04/27/2021] [Indexed: 12/19/2022]
Abstract
AIM To characterize gingival metabolome in high-fat diet (HFD)-induced obesity in mice with/without periodontitis. METHODS HFD-induced obesity mouse model was established by 16-week feeding, and a lean control group was fed with low-fat diet (n = 21/group). Both models were induced for periodontitis on the left sides by molar ligation for 10 days, whereas the right sides were used as controls. Gingival metabolome and arginine metabolism were analysed by non-targeted/targeted liquid chromatography-mass spectrometry. RESULTS Of 2247 reference features, presence of periodontitis altered 165 in lean versus 885 in HFD mice; and HFD altered 525 in absence versus 1435 in presence of periodontitis. Compared with healthy condition, periodontitis and HFD had distinct effects on gingival metabolome. Metabolomic impacts of periodontitis were generally greater in HFD mice versus lean controls. K-medoids clustering showed that HFD amplified the impacts of periodontitis on gingival metabolome in both intensity and extensity. Ten metabolic pathways were enriched, including 2 specific to periodontitis, 5 specific to HFD and 3 shared ones. Targeted validation on arginine metabolism confirmed the additive effects between HFD and periodontitis. CONCLUSION The obese population consuming excessive HFD display amplified metabolic response to periodontitis, presenting a metabolic susceptibility to exacerbated periodontal destruction.
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Affiliation(s)
- Zi-Yun Chen
- Department of Periodontics, Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Tian-Tian Xu
- Department of Periodontics, Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Zhao-Jia Liang
- Department of Periodontics, Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Li Zhao
- Department of Prosthodontics, Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Xiao-Qin Xiong
- Department of Periodontics, Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Kun-Ke Xie
- Department of Periodontics, Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Wan-Xin Yu
- Department of Periodontics, Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Xiao-Wen Zeng
- Department of Periodontics, Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Jie Gao
- Department of Periodontics, Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Ying-Hong Zhou
- Department of Periodontics, Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China.,Queensland University of Technology, Centre for Biomedical Technologies, Queensland, Australia
| | - Gang Luo
- Department of Periodontics, Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Ting Yu
- Department of Periodontics, Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
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16
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Zou H, Zhou N, Huang Y, Luo A, Sun J. Phenotypes, roles, and modulation of regulatory lymphocytes in periodontitis and its associated systemic diseases. J Leukoc Biol 2021; 111:451-467. [PMID: 33884656 DOI: 10.1002/jlb.3vmr0321-027rrr] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Periodontitis is a common chronic inflammatory disease that can result in tooth loss and poses a risk to systemic health. Lymphocytes play important roles in periodontitis through multiple mechanisms. Regulatory lymphocytes including regulatory B cells (Bregs) and T cells (Tregs) are the main immunosuppressive cells that maintain immune homeostasis, and are critical to our understanding of the pathogenesis of periodontitis and the development of effective treatments. In this review, we discuss the phenotypes, roles, and modulating strategies of regulatory lymphocytes including Bregs and Tregs in periodontitis and frequently cooccurring inflammatory diseases such as rheumatoid arthritis, Alzheimer disease, diabetes mellitus, and stroke. The current evidence suggests that restoring immune balance through therapeutic targeting of regulatory lymphocytes is a promising strategy for the treatment of periodontitis and other systemic inflammatory diseases.
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Affiliation(s)
- Hang Zou
- Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-Sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
| | - Niu Zhou
- Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-Sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China.,Guangzhou Zoo, Guangzhou, China
| | - Yilian Huang
- School of Nursing, Guangdong Pharmaceutical University, Guangzhou, China
| | - Aoxiang Luo
- School of Nursing, Guangdong Pharmaceutical University, Guangzhou, China
| | - Jianbo Sun
- Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-Sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
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17
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Sekundo C, Bölk T, Kalmus O, Listl S. Accuracy of a 7-Item Patient-Reported Stand-Alone Tool for Periodontitis Screening. J Clin Med 2021; 10:E287. [PMID: 33466797 PMCID: PMC7830157 DOI: 10.3390/jcm10020287] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 01/10/2021] [Accepted: 01/12/2021] [Indexed: 02/06/2023] Open
Abstract
Periodontitis is interrelated with various other chronic diseases. Recent evidence suggests that treatment of periodontitis improves glycemic control in diabetes patients and reduces the costs of diabetes treatment. So far, however, screening for periodontitis in non-dental settings has been complicated by a lack of easily applicable and reliable screening tools which can be applied by non-dental professionals. The purpose of this study was to assess the diagnostic accuracy of a short seven-item tool developed by the German Society for Periodontology (DG PARO) to screen for periodontitis by means of patient-reported information. A total of 88 adult patients filled in the patient-reported Periodontitis Risk Score (pPRS; range: 0 points = lowest periodontitis risk; 20 points = very high periodontitis risk) questionnaire before dental check-up at Heidelberg University Hospital. Subsequent clinical assessments according to Periodontal Screening and Recording (PSR®) were compared with pPRS scores. The diagnostic accuracy of pPRS at different cutoff values was assessed according to sensitivity, specificity, positive, and negative predictive values, as well as Receiver-Operator-Characteristic curves, Area Under the Curve (AUC), and logistic regression analysis. According to combined specificity and sensitivity (AUC = 0.86; 95%-CI: 0.76-0.95), the diagnostic accuracy of the pPRS for detecting periodontal inflammation (PSR® ≥ 3) was highest for a pPRS cutoff distinguishing between pPRS scores < 7 vs. ≥ 7. Patients with pPRS scores ≥ 7 had a 36.09 (95%-CI: 9.82-132.61) times higher chance of having a PSR® ≥ 3 than patients with scores < 7. In conclusion, the pPRS may be considered an appropriately accurate stand-alone tool for the screening for periodontitis.
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Affiliation(s)
- Caroline Sekundo
- Translational Health Economics Group (THE Group), Department of Conservative Dentistry, Clinic for Oral, Dental and Maxillofacial Diseases, Heidelberg University, 69120 Heidelberg, Germany; (T.B.); (O.K.); (S.L.)
| | - Tobias Bölk
- Translational Health Economics Group (THE Group), Department of Conservative Dentistry, Clinic for Oral, Dental and Maxillofacial Diseases, Heidelberg University, 69120 Heidelberg, Germany; (T.B.); (O.K.); (S.L.)
| | - Olivier Kalmus
- Translational Health Economics Group (THE Group), Department of Conservative Dentistry, Clinic for Oral, Dental and Maxillofacial Diseases, Heidelberg University, 69120 Heidelberg, Germany; (T.B.); (O.K.); (S.L.)
| | - Stefan Listl
- Translational Health Economics Group (THE Group), Department of Conservative Dentistry, Clinic for Oral, Dental and Maxillofacial Diseases, Heidelberg University, 69120 Heidelberg, Germany; (T.B.); (O.K.); (S.L.)
- Department of Dentistry—Quality and Safety of Oral Healthcare, Radboud University Medical Center, Radboud Institute for Health Sciences, 6525 Nijmegen, The Netherlands
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18
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Gao H, Xu J, He L, Meng H, Hou J. Calprotectin levels in gingival crevicular fluid and serum of patients with chronic periodontitis and type 2 diabetes mellitus before and after initial periodontal therapy. J Periodontal Res 2020; 56:121-130. [PMID: 32936946 DOI: 10.1111/jre.12800] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 08/11/2020] [Accepted: 08/19/2020] [Indexed: 12/20/2022]
Abstract
BACKGROUND This study is aimed to compare the total amount of calprotectin in gingival crevicular fluid (GCF) and the concentration of calprotectin in serum among the patients with type 2 diabetes mellitus and chronic periodontitis (DM-P), the patients with chronic periodontitis (CP) and the healthy controls, as well as the variation of these indicators before and three months after the initial periodontal therapy for the DM-P patients. METHODS 35 patients with DM-P patients, 32 patients with CP patients, and 43 healthy controls were recruited. Calprotectin levels in serum and GCF, periodontal parameters, fasting blood glucose (FBG), and HbA1c were measured at baseline for all the groups and three months after the initial periodontal therapy for the DM-P patients. RESULTS At baseline, the calprotectin levels in GCF and serum were the highest in DM-P, followed by CP, and the lowest in healthy controls. GCF calprotectin was significantly and positively correlated with serum calprotectin and probing depth (PD), while serum calprotectin had a significant positive correlation with GCF calprotectin and HbA1c. Periodontal parameters, HbA1c, and serum and GCF calprotectin became significantly reduced after the initial periodontal treatment. The reduction of serum calprotectin was consistent with that of HbA1c, while the decrease of GCF calprotectin was in agreement with that of PD, attachment loss (AL), and bleeding on probing (BOP). CONCLUSIONS The levels of calprotectin in serum and GCF in the DM-P patients are significantly higher than those in CP patients and healthy controls, which significantly reduced 3 months after the initial periodontal therapy. Furthermore, it suggests diabetic patients might exhibit more pronounced inflammation periodontally and systemically.
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Affiliation(s)
- Hongyu Gao
- Department of Periodontology, Peking University School and Hospital of Stomatology, Beijing, China.,Department of Periodontology, School and Hospital of Stomatology, Tianjin Medical University, Tianjin, China
| | - Jingling Xu
- Department of Periodontology, Peking University School and Hospital of Stomatology, Beijing, China.,Department of Stomatology, Peking University International Hospital, Beijing, China
| | - Lu He
- Department of Periodontology, Peking University School and Hospital of Stomatology, Beijing, China
| | - Huanxin Meng
- Department of Periodontology, Peking University School and Hospital of Stomatology, Beijing, China
| | - Jianxia Hou
- Department of Periodontology, Peking University School and Hospital of Stomatology, Beijing, China
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19
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Belkina AC, Azer M, Lee JJ, Elgaali HH, Pihl R, Cleveland M, Carr J, Kim S, Habib C, Hasturk H, Snyder-Cappione JE, Nikolajczyk BS. Single-Cell Analysis of the Periodontal Immune Niche in Type 2 Diabetes. J Dent Res 2020; 99:855-862. [PMID: 32186942 DOI: 10.1177/0022034520912188] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Periodontitis (PD) is a common source of uncontrolled inflammation in obesity-associated type 2 diabetes (T2D). PD apparently fuels the inflammation of T2D and associates with poor glycemic control and increased T2D morbidity. New therapeutics are critically needed to counter the sources of periodontal infection and inflammation that are accelerated in people with T2D. The precise mechanisms underlying the relationship between PD and T2D remain poorly understood. Every major immune cell subset has been implicated in the unresolved inflammation of PD, regardless of host metabolic health. However, analyses of inflammatory cells in PD with human periodontal tissue have generally focused on mRNA quantification and immunohistochemical analyses, both of which provide limited information on immune cell function. We used a combination of flow cytometry for cell surface markers and enzyme-linked immunospot methods to assess the subset distribution and function of immune cells isolated from gingiva of people who had PD and were systemically healthy, had PD and T2D (PD/T2D), or, for flow cytometry, were systemically and orally healthy. T-cell subsets dominated the cellular immune compartment in gingiva from all groups, and B cells were relatively rare. Although immune cell frequencies were similar among groups, a higher proportion of CD11b+ or CD4+ cells secreted IFNγ/IL-10 or IL-8, respectively, in cells from PD/T2D samples as compared with PD-alone samples. Our data indicate that fundamental differences in gingival immune cell function between PD and T2D-potentiated PD may account for the increased risk and severity of PD in subjects with T2D. Such differences may suggest unexpected therapeutic targets for alleviating periodontal inflammation in people with T2D.
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Affiliation(s)
- A C Belkina
- Department of Pathology and Laboratory Medicine, School of Medicine, Boston University, Boston, MA, USA.,Flow Cytometry Core Facility, School of Medicine, Boston University, Boston, MA, USA
| | - M Azer
- Department of Oral Biology, Goldman School of Dental Medicine, Boston University, Boston, MA, USA
| | - J J Lee
- Department of Pharmacology and Nutritional Sciences and Barnstable Brown Diabetes and Obesity Research Center, University of Kentucky, Lexington, KY, USA
| | - H H Elgaali
- Department of Pharmacology and Nutritional Sciences and Barnstable Brown Diabetes and Obesity Research Center, University of Kentucky, Lexington, KY, USA
| | - R Pihl
- Flow Cytometry Core Facility, School of Medicine, Boston University, Boston, MA, USA
| | - M Cleveland
- Department of Pharmacology and Nutritional Sciences and Barnstable Brown Diabetes and Obesity Research Center, University of Kentucky, Lexington, KY, USA
| | - J Carr
- Department of Microbiology, School of Medicine, Boston University, Boston, MA, USA
| | - S Kim
- Department of Medicine, School of Medicine, Boston University, Boston, MA, USA
| | - C Habib
- Department of Medicine, School of Medicine, Boston University, Boston, MA, USA
| | - H Hasturk
- The Forsyth Institute, Cambridge, MA, USA
| | - J E Snyder-Cappione
- Flow Cytometry Core Facility, School of Medicine, Boston University, Boston, MA, USA.,Department of Microbiology, School of Medicine, Boston University, Boston, MA, USA
| | - B S Nikolajczyk
- Department of Pharmacology and Nutritional Sciences and Barnstable Brown Diabetes and Obesity Research Center, University of Kentucky, Lexington, KY, USA.,Department of Microbiology, School of Medicine, Boston University, Boston, MA, USA
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20
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Gingimaps: Protein Localization in the Oral Pathogen Porphyromonas gingivalis. Microbiol Mol Biol Rev 2020; 84:84/1/e00032-19. [PMID: 31896547 DOI: 10.1128/mmbr.00032-19] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Porphyromonas gingivalis is an oral pathogen involved in the widespread disease periodontitis. In recent years, however, this bacterium has been implicated in the etiology of another common disorder, the autoimmune disease rheumatoid arthritis. Periodontitis and rheumatoid arthritis were known to correlate for decades, but only recently a possible molecular connection underlying this association has been unveiled. P. gingivalis possesses an enzyme that citrullinates certain host proteins and, potentially, elicits autoimmune antibodies against such citrullinated proteins. These autoantibodies are highly specific for rheumatoid arthritis and have been purported both as a symptom and a potential cause of the disease. The citrullinating enzyme and other major virulence factors of P. gingivalis, including some that were implicated in the etiology of rheumatoid arthritis, are targeted to the host tissue as secreted or outer-membrane-bound proteins. These targeting events play pivotal roles in the interactions between the pathogen and its human host. Accordingly, the overall protein sorting and secretion events in P. gingivalis are of prime relevance for understanding its full disease-causing potential and for developing preventive and therapeutic approaches. The aim of this review is therefore to offer a comprehensive overview of the subcellular and extracellular localization of all proteins in three reference strains and four clinical isolates of P. gingivalis, as well as the mechanisms employed to reach these destinations.
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21
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Doğusal G, Afacan B, Bozkurt E, Sönmez I. Gingival crevicular fluid and salivary resistin and tumor necrosis factor-alpha levels in obese children with gingivitis. J Periodontol 2019; 89:973-982. [PMID: 29635809 DOI: 10.1002/jper.17-0613] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2017] [Revised: 02/08/2018] [Accepted: 02/13/2018] [Indexed: 11/08/2022]
Abstract
BACKGROUND This study aimed to evaluate the levels of resistin and tumor necrosis factor-alpha (TNF-α) in gingival crevicular fluid (GCF) and saliva of obese children with gingivitis. METHODS One-hundred and thirty children (65 obese and 65 normal weight; age range 8 to 12 years) were recruited for the study. The children were classified into four subgroups based on their body mass and periodontal status; 1) obese children with gingivitis (OG, n = 33); 2) obese children with healthy periodontium (OH, n = 32); 3) normal weight children with gingivitis (NWG, n = 32); 4) normal weight children with healthy periodontium (NWH, n = 33). Body mass index (BMI) percentile, probing pocket depth (PPD), gingival index (GI), and plaque index (PI) were recorded. Resistin and TNF-α were analyzed in GCF and saliva samples by ELISA. RESULTS Obese children had higher BMI percentiles than normal weight children (p < 0.0001). PPD, GI, PI, GCF volume, GCF, and salivary resistin and TNF-α levels were similar between obese and normal weight children (P > 0.05). OG and NWG subgroups had significantly higher GI, PI, GCF volume, GCF resistin total amounts, and salivary resistin concentrations but lower GCF resistin and TNF-α concentrations than OH and NWH (P < 0.0001 for all). GCF resistin total amounts were positively correlated with GI, PI, and GCF TNF-α total amounts (P < 0.05). CONCLUSIONS To our knowledge, this is the first study evaluated the levels of resistin in GCF and saliva of children. Obesity is not associated with GCF and salivary resistin and TNF-α levels in children in the presence of gingival inflammation.
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Affiliation(s)
- Gülçin Doğusal
- Department of Pediatric Dentistry, Faculty of Dentistry, Adnan Menderes University, Aydın, Turkey
| | - Beral Afacan
- Department of Periodontology, Faculty of Dentistry, Adnan Menderes University, Aydın, Turkey
| | - Emir Bozkurt
- Section of Molecular Biology, Department of Biology, Faculty of Science and Letters, Celal Bayar University, Manisa, Turkey
| | - Işıl Sönmez
- Department of Pediatric Dentistry, Faculty of Dentistry, Adnan Menderes University, Aydın, Turkey
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22
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Aberrant Periodontal and Systemic Immune Response of Overweight Rodents to Periodontal Infection. BIOMED RESEARCH INTERNATIONAL 2019; 2019:9042542. [PMID: 30719451 PMCID: PMC6335672 DOI: 10.1155/2019/9042542] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Revised: 12/01/2018] [Accepted: 12/11/2018] [Indexed: 11/17/2022]
Abstract
This study aimed to explore periodontal and systemic immune response of overweight hosts to periodontitis. Forty C57 BL/6J male mice were divided into high (HF) or low fat (LF) diet groups and fed with the two diets, respectively, for 8 weeks. Each diet group was then divided into periodontitis (P) or control (C) groups (n = 10 per group) for 10-day ligation or sham-ligation. Overweight-related parameters including body weight were measured. Alveolar bone loss (ABL) was morphometrically analyzed and periodontal osteoclasts were stained. Periodontal immune response including leukocyte and macrophage number and inflammatory cytokines were analyzed by histology and quantitative PCR. Serum cytokine and lipid levels were quantified using electrochemiluminescence immunoassays, enzyme-linked immunosorbent assays, and biochemistry. It was found that HF group had 14.4% body weight gain compared with LF group (P < 0.01). ABL and periodontal osteoclast, leukocyte, and macrophage number were higher in P group than C group regardless of diet (P < 0.05). ABL and periodontal osteoclast number were not affected by diet regardless of ligation or sham-ligation. Leukocyte and macrophage number and protein level of tumor necrosis factor α (TNF-α) in periodontium and serum interleukin-6 level were downregulated by HF diet in periodontitis mice (P < 0.05). Periodontal protein level of TNF-α was highly correlated with serum interleukin-6 and low-density lipoprotein cholesterol levels (P < 0.01). These findings indicated that impaired immune response occurs both periodontally and systemically in preobesity overweight individuals. Given a well-reported exacerbating effect of obesity on periodontitis, overweight, if let uncontrolled, might place the individuals at potential risk for future periodontal tissue damage.
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23
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Nikolajczyk BS, Dawson DR. Origin of Th17 Cells in Type 2 Diabetes-Potentiated Periodontal Disease. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1197:45-54. [DOI: 10.1007/978-3-030-28524-1_4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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24
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Liu Y, Yu Y, Nickel JC, Iwasaki LR, Duan P, Simmer-Beck M, Brown L. Gender differences in the association of periodontitis and type 2 diabetes. Int Dent J 2018; 68:433-440. [DOI: 10.1111/idj.12399] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
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25
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Kocher T, König J, Borgnakke WS, Pink C, Meisel P. Periodontal complications of hyperglycemia/diabetes mellitus: Epidemiologic complexity and clinical challenge. Periodontol 2000 2018; 78:59-97. [DOI: 10.1111/prd.12235] [Citation(s) in RCA: 98] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Thomas Kocher
- Department of Restorative Dentistry, Periodontology, Endodontology, and Preventive and Pediatric Dentistry; University Medicine Greifswald; Greifswald Germany
| | - Jörgen König
- Department of Restorative Dentistry, Periodontology, Endodontology, and Preventive and Pediatric Dentistry; University Medicine Greifswald; Greifswald Germany
| | - Wenche Sylling Borgnakke
- Department of Periodontics and Oral Medicine; University of Michigan School of Dentistry; Ann Arbor Michigan
| | - Christiane Pink
- Department of Restorative Dentistry, Periodontology, Endodontology, and Preventive and Pediatric Dentistry; University Medicine Greifswald; Greifswald Germany
| | - Peter Meisel
- Department of Restorative Dentistry, Periodontology, Endodontology, and Preventive and Pediatric Dentistry; University Medicine Greifswald; Greifswald Germany
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26
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Ni J, Chen L, Zhong S, Chai Q, Zhang L, Wang D, Li S, Zhang J. Influence of periodontitis and scaling and root planing on insulin resistance and hepatic CD36 in obese rats. J Periodontol 2018. [PMID: 29520779 DOI: 10.1002/jper.17-0115] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Jia Ni
- Department of Periodontics; Stomatological Hospital of Southern Medical University; Guangdong Provincial Stomatological Hospital; Guangzhou 510280 China
| | - Lei Chen
- Department of Periodontics; Stomatological Hospital of Southern Medical University; Guangdong Provincial Stomatological Hospital; Guangzhou 510280 China
| | - Sulan Zhong
- Department of Periodontics; Stomatological Hospital of Southern Medical University; Guangdong Provincial Stomatological Hospital; Guangzhou 510280 China
| | - Qiaoxue Chai
- Department of Periodontics; Stomatological Hospital of Southern Medical University; Guangdong Provincial Stomatological Hospital; Guangzhou 510280 China
| | - Lin Zhang
- Department of Periodontics; Stomatological Hospital of Southern Medical University; Guangdong Provincial Stomatological Hospital; Guangzhou 510280 China
| | - Dan Wang
- Department of Periodontics; Stomatological Hospital of Southern Medical University; Guangdong Provincial Stomatological Hospital; Guangzhou 510280 China
| | - Shaobing Li
- Department of Periodontics; Stomatological Hospital of Southern Medical University; Guangdong Provincial Stomatological Hospital; Guangzhou 510280 China
| | - Jincai Zhang
- Vice President; Savaid Medical School of University of Chinese Academy of Sciences; Beijing 100049 China
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27
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Zeng X, Du X, Zhang J, Jiang S, Liu J, Xie Y, Shan W, He G, Sun Q, Zhao J. The essential function of CARD9 in diet-induced inflammation and metabolic disorders in mice. J Cell Mol Med 2018; 22:2993-3004. [PMID: 29575791 PMCID: PMC5980191 DOI: 10.1111/jcmm.13494] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Accepted: 11/07/2017] [Indexed: 12/13/2022] Open
Abstract
Inflammation and metabolic disorder are common pathophysiological conditions, which play a vital role in the development of obesity and type 2 diabetes. The purpose of this study was to explore the effects of caspase recruitment domain (CARD) 9 in the high fat diet (HFD)‐treated mice and attempt to find a molecular therapeutic target for obesity development and treatment. Sixteen male CARD9−/− and corresponding male WT mice were fed with normal diet or high fat diet, respectively, for 12 weeks. Glucose tolerance, insulin resistance, oxygen consumption and heat production of the mice were detected. The CARD9/MAPK pathway‐related gene and protein were determined in insulin‐responsive organs using Western blotting and quantitative PCR. The results showed that HFD‐induced insulin resistance and impairment of glucose tolerance were more severe in WT mice than that in the CARD9−/− mice. CARD9 absence significantly modified O2 consumption, CO2 production and heat production. CARD9−/− mice displayed the lower expression of p38 MAPK, JNK and ERK when compared to the WT mice in both HFD‐ and ND‐treated groups. HFD induced the increase of p38 MAPK, JNK and ERK in WT mice but not in the CARD9−/− mice. The results indicated that CARD9 absence could be a vital protective factor in diet‐induced obesity via the CARD9/MAPK pathway, which may provide new insights into the development of gene knockout to improving diet‐induced obesity and metabolism disorder.
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Affiliation(s)
- Xuejiao Zeng
- Department of Environmental Health, School of Public Health, Fudan University, Shanghai, China.,The Key Laboratory of Public Health Safety, Ministry of Education, Fudan University, Shanghai, China
| | - Xihao Du
- Department of Environmental Health, School of Public Health, Fudan University, Shanghai, China.,The Key Laboratory of Public Health Safety, Ministry of Education, Fudan University, Shanghai, China
| | - Jia Zhang
- Department of Environmental Health, School of Public Health, Fudan University, Shanghai, China.,The Key Laboratory of Public Health Safety, Ministry of Education, Fudan University, Shanghai, China
| | - Shuo Jiang
- Department of Environmental Health, School of Public Health, Fudan University, Shanghai, China.,The Key Laboratory of Public Health Safety, Ministry of Education, Fudan University, Shanghai, China
| | - Jie Liu
- Department of Environmental Health, School of Public Health, Fudan University, Shanghai, China.,The Key Laboratory of Public Health Safety, Ministry of Education, Fudan University, Shanghai, China
| | - Yuquan Xie
- Department of Cardiology, School of Medicine, Xinhua Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Wei Shan
- Department of Epidemiology, School of Public Health, Fudan University, Shanghai, China.,Ministry of Education, Fudan University, Shanghai, China
| | - Guanglong He
- College of Health Sciences, University of Wyoming School of Pharmacy, Laramie, WY, USA
| | - Qinghua Sun
- Division of Environmental Health Sciences, College of Public Health, The Ohio State University, Columbus, OH, USA
| | - Jinzhuo Zhao
- Department of Environmental Health, School of Public Health, Fudan University, Shanghai, China.,The Key Laboratory of Public Health Safety, Ministry of Education, Fudan University, Shanghai, China.,Shanghai Key Laboratory of Meteorology and Health, Shanghai, China
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28
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Lu Z, Li Y, Brinson CW, Lopes-Virella MF, Huang Y. Cooperative stimulation of atherogenesis by lipopolysaccharide and palmitic acid-rich high fat diet in low-density lipoprotein receptor-deficient mice. Atherosclerosis 2017; 265:231-241. [PMID: 28934649 DOI: 10.1016/j.atherosclerosis.2017.09.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/09/2017] [Revised: 07/07/2017] [Accepted: 09/06/2017] [Indexed: 02/07/2023]
Abstract
BACKGROUND AND AIMS Either lipopolysaccharide (LPS) or high-fat diet (HFD) enriched with saturated fatty acid (SFA) promotes atherosclerosis. In this study, we investigated the effect of LPS in combination with SFA-rich HFD on atherosclerosis and how LPS and SFA interact to stimulate inflammatory response in vascular endothelial cells. METHODS Low-density lipoprotein receptor-deficient (LDLR-/-) mice were fed a low-fat diet (LFD), HFD with low palmitic acid (PA) (LP-HFD), or HFD with high PA (HP-HFD) for 20 weeks. During the last 12 weeks, half mice received LPS and half received PBS. After treatment, metabolic parameters and aortic atherosclerosis were analyzed. To understand the underlying mechanisms, human aortic endothelial cells (HAECs) were treated with LPS and/or PA and proinflammatory molecule expression was quantified. RESULTS The metabolic study showed that LPS had no significant effect on cholesterol, triglycerides, free fatty acids, but increased insulin and insulin resistance. Both LP-HFD and HP-HFD increased body weight and cholesterol while LP-HFD increased glucose and HP-HFD increased triglycerides, insulin, and insulin resistance. Analysis of aortic atherosclerosis showed that HP-HFD was more effective than LP-HFD in inducing atherosclerosis and LPS in combination with HP-HFD increased atherosclerosis in the thoracic aorta, a less common site for atherosclerosis, as compared with LPS or HP-HFD. To understand the mechanisms, results showed that LPS and PA synergistically upregulated adhesion molecules and proinflammatory cytokines in HAECs. CONCLUSIONS LPS and PA-rich HFD cooperatively increased atherogenesis in the thoracic aorta. The synergy between LPS and PA on proinflammatory molecules in HAECs may play an important role in atherogenesis.
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Affiliation(s)
- Zhongyang Lu
- Division of Endocrinology, Diabetes and Medical Genetics, Department of Medicine, Medical University of South Carolina, Charleston, SC 29425, USA
| | - Yanchun Li
- Division of Endocrinology, Diabetes and Medical Genetics, Department of Medicine, Medical University of South Carolina, Charleston, SC 29425, USA
| | - Colleen W Brinson
- Division of Endocrinology, Diabetes and Medical Genetics, Department of Medicine, Medical University of South Carolina, Charleston, SC 29425, USA
| | - Maria F Lopes-Virella
- Ralph H. Johnson Veterans Affairs Medical Center, Charleston, SC 29401, USA; Division of Endocrinology, Diabetes and Medical Genetics, Department of Medicine, Medical University of South Carolina, Charleston, SC 29425, USA
| | - Yan Huang
- Ralph H. Johnson Veterans Affairs Medical Center, Charleston, SC 29401, USA; Division of Endocrinology, Diabetes and Medical Genetics, Department of Medicine, Medical University of South Carolina, Charleston, SC 29425, USA.
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29
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钟 素, 倪 佳, 柴 巧, 陈 蕾, 章 锦. [Effects of non-surgical periodontal therapy on serum inflammatory markers and metabolic level in obese rats]. NAN FANG YI KE DA XUE XUE BAO = JOURNAL OF SOUTHERN MEDICAL UNIVERSITY 2017; 37:807-811. [PMID: 28669957 PMCID: PMC6744135 DOI: 10.3969/j.issn.1673-4254.2017.06.16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 10/19/2016] [Indexed: 06/07/2023]
Abstract
OBJECTIVE To investigate the effects of non-surgical periodontal therapy on serum inflammatory factors and metabolism levels in obese rats with experimental periodontitis. METHODS Sixteen obese rats with experimental periodontitis were randomly divided into treatment group and control group with non-surgical periodontal therapy and no treatment, respectively. Oral glucose tolerance test was performed before treatment and 2 weeks after the treatment. All the rats were sacrificed 2 weeks after treatment and the orbital vein blood was taken to detect fasting blood glucose, fasting insulin, and serum level of C-reactive protein (CRP). Results Two weeks after periodontal treatment, fasting blood glucose (t=2.445, P=0.034) and beta cell function index (t=-2.543, P=0.027) were significantly lower in the treatment group than in the control group. Compared with those in the control group, CRP level (t=2.388, P=0.028) and the area under the curve in the oral glucose tolerance test (t=12.053, P=0.000) decreased significantly in the treatment group. CONCLUSION Non-surgical periodontal treatment can reduce serum CRP level and improve glucose metabolism in obese rats.
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Affiliation(s)
- 素兰 钟
- 南方医科大学口腔医院//广东省口腔医院牙体牙髓科,广东 广州 510515Department of Endodontics, Affiliated Hospital of Stomatology of Southern Medical University/Guangdong Provincial Stomatological Hospital, Guangzhou 510515, China
| | - 佳 倪
- 南方医科大学口腔医院//广东省口腔医院牙体牙髓科,广东 广州 510515Department of Endodontics, Affiliated Hospital of Stomatology of Southern Medical University/Guangdong Provincial Stomatological Hospital, Guangzhou 510515, China
| | - 巧学 柴
- 南方医科大学口腔医院//广东省口腔医院牙体牙髓科,广东 广州 510515Department of Endodontics, Affiliated Hospital of Stomatology of Southern Medical University/Guangdong Provincial Stomatological Hospital, Guangzhou 510515, China
| | - 蕾 陈
- 南方医科大学口腔医院//广东省口腔医院牙体牙髓科,广东 广州 510515Department of Endodontics, Affiliated Hospital of Stomatology of Southern Medical University/Guangdong Provincial Stomatological Hospital, Guangzhou 510515, China
| | - 锦才 章
- 中国科学院大学存济医学院,北京University of Chinese Academy of Sciences, Beijing 100049, China
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Yu T, Zhao L, Huang X, Xie M, Wang X, Ma C, Xu Y, Wang Y, Xie B, Luo G, Zhang J, Xuan D. Postoperative Weight Loss Masks Metabolic Impacts of Periodontitis in Obese Rodents. J Periodontol 2017; 88:e97-e108. [PMID: 28394188 DOI: 10.1902/jop.2017.160655] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Ting Yu
- Key Laboratory of Oral Medicine, Guangzhou Institute of Oral Disease, Stomatology Hospital of Guangzhou Medical University, Guangzhou, China
| | - Li Zhao
- Department of Prosthodontics, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangdong Engineering Research Center of Technology and Materials for Oral Reconstruction, Guangzhou, China
| | - Xin Huang
- Department of Periodontology, Affiliated Hospital of Stomatology, Southern Medical University, Guangzhou, China
| | - Meilian Xie
- Department of Periodontology, Ai Kang Jian Dental Group, Shenzhen, China
| | - Xiangli Wang
- Department of Periodontology, Hangzhou Dental Hospital, Savaid Medical School, University of Chinese Academy of Sciences, Hangzhou, China
| | - Chanjuan Ma
- Department of Periodontology, Affiliated Hospital of Stomatology, Southern Medical University, Guangzhou, China
| | - Yixin Xu
- Department of Periodontology, Affiliated Hospital of Stomatology, Southern Medical University, Guangzhou, China
| | - Yixiong Wang
- Department of Periodontology, Affiliated Hospital of Stomatology, Southern Medical University, Guangzhou, China
| | - Baoyi Xie
- Department of Periodontology, Affiliated Hospital of Stomatology, Southern Medical University, Guangzhou, China
| | - Gang Luo
- Key Laboratory of Oral Medicine, Guangzhou Institute of Oral Disease, Stomatology Hospital of Guangzhou Medical University, Guangzhou, China
| | - Jincai Zhang
- Department of Periodontology, Savaid Medical School, University of Chinese Academy of Sciences, Beijing, China
| | - Dongying Xuan
- Department of Periodontology, Hangzhou Dental Hospital, Savaid Medical School, University of Chinese Academy of Sciences, Hangzhou, China
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柴 巧, 钟 素, 倪 佳, 陈 蕾, 周 磊, 章 锦. [Beneficial effect of periodontal therapy on insulin resistance and lipid metabolism in obese rats with periodontitis]. NAN FANG YI KE DA XUE XUE BAO = JOURNAL OF SOUTHERN MEDICAL UNIVERSITY 2017; 37:663-667. [PMID: 28539291 PMCID: PMC6780471 DOI: 10.3969/j.issn.1673-4254.2017.05.16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Indexed: 06/07/2023]
Abstract
OBJECTIVE To investigate the effect of periodontal therapy in controlling periodontitis and on insulin resistance and lipid metabolism in obese rats with periodontitis. METHODS Sprague-Dawley rats were randomized into normal group (group C), obese group (group O), periodontitis combined with obesity group (group P) and periodontal treatment group (group T). The obese rats in groups P and T were subjected to ligation of the maxillary second molar with silk thread to induce experimental periodontitis, and the rats in group T received periodontal therapy after the ligation. All the rats were sacrificed at the age of 24 weeks for measurement of blood lipids, insulin and blood glucose levels, and insulin resistance index (HOMA-IR) was calculated. The expressions of insulin receptor substrate-1 (IRS-1) and IRS-2 in the liver tissues were detected using real-time quantitative polymerase chain reaction (RT-PCR). RESULTS Compared with the obese rats in group O, the rats in group P showed significantly higher HOMA-IR and LDL-C and lower expressions of IRS-1 and IRS-2 mRNA expression and HDL-C level (P<0.05). Compared with those in group P, the mRNA expressions of IRS-1 and IRS-2 and HDL-C level were significantly increased and LDL-C level, TC level and HOMA-IR were all decreased in group T (P<0.05), but the level of TG was comparable between the two groups. Pathological examination revealed lessened inflammatory cell infiltration and tissue destruction in the upper jaw of the rats in group T; the rats in group P presented with the most obvious upper jaw destruction and steatosis and inflammatory cell infiltration in the liver. CONCLUSION Periodontal inflammation can downregulate the expression of IRS-1 and IRS-2 and increase insulin resistance and dyslipidemia in obese rats. Periodontal therapy produces a beneficial effect in improving insulin resistance and reducing dyslipidemia in obese rats.
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Affiliation(s)
- 巧学 柴
- 南方医科大学口腔医院//广东省口腔医院,广东 广州 510515Department of Endodontics, Affiliated Hospital of Stomatology, Southern Medical University//Guangdong Provincial Stomatological Hospital, Guangzhou 510515, China
| | - 素兰 钟
- 南方医科大学口腔医院//广东省口腔医院,广东 广州 510515Department of Endodontics, Affiliated Hospital of Stomatology, Southern Medical University//Guangdong Provincial Stomatological Hospital, Guangzhou 510515, China
| | - 佳 倪
- 南方医科大学口腔医院//广东省口腔医院,广东 广州 510515Department of Endodontics, Affiliated Hospital of Stomatology, Southern Medical University//Guangdong Provincial Stomatological Hospital, Guangzhou 510515, China
| | - 蕾 陈
- 南方医科大学口腔医院//广东省口腔医院,广东 广州 510515Department of Endodontics, Affiliated Hospital of Stomatology, Southern Medical University//Guangdong Provincial Stomatological Hospital, Guangzhou 510515, China
| | - 磊 周
- 南方医科大学口腔医院//广东省口腔医院,广东 广州 510515Department of Endodontics, Affiliated Hospital of Stomatology, Southern Medical University//Guangdong Provincial Stomatological Hospital, Guangzhou 510515, China
| | - 锦才 章
- 中国科学院大学存济医学院,北京 100049Savaid Medical School, University of Chinese Academy of Sciences, Beijing 100049, China
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Eriksson K, Lönnblom E, Tour G, Kats A, Mydel P, Georgsson P, Hultgren C, Kharlamova N, Norin U, Jönsson J, Lundmark A, Hellvard A, Lundberg K, Jansson L, Holmdahl R, Yucel-Lindberg T. Effects by periodontitis on pristane-induced arthritis in rats. J Transl Med 2016; 14:311. [PMID: 27809921 PMCID: PMC5094068 DOI: 10.1186/s12967-016-1067-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Accepted: 10/20/2016] [Indexed: 12/29/2022] Open
Abstract
Background An infection-immune association of periodontal disease with rheumatoid arthritis has been suggested. This study aimed to investigate the effect of pre-existing periodontitis on the development and the immune/inflammatory response of pristane-induced arthritis. Methods We investigated the effect of periodontitis induced by ligature placement and Porphyromonas gingivalis (P. gingivalis) infection, in combination with Fusobacterium nucleatum to promote its colonization, on the development of pristane-induced arthritis (PIA) in rats (Dark Agouti). Disease progression and severity of periodontitis and arthritis was monitored using clinical assessment, micro-computed tomography (micro-CT)/intraoral radiographs, antibody response, the inflammatory markers such as α-1-acid glycoprotein (α-1-AGP) and c-reactive protein (CRP) as well as cytokine multiplex profiling at different time intervals after induction. Results Experimentally induced periodontitis manifested clinically (P < 0.05) prior to pristane injection and progressed steadily until the end of experiments (15 weeks), as compared to the non-ligated arthritis group. Injection of pristane 8 weeks after periodontitis-induction led to severe arthritis in all rats demonstrating that the severity of arthritis was not affected by the pre-existence of periodontitis. Endpoint analysis showed that 89% of the periodontitis-affected animals were positive for antibodies against arginine gingipain B and furthermore, the plasma antibody levels to a citrullinated P. gingivalis peptidylarginine deiminase (PPAD) peptide (denoted CPP3) were significantly (P < 0.05) higher in periodontitis rats with PIA. Additionally, there was a trend towards increased pro-inflammatory and anti-inflammatory cytokine levels, and increased α-1-AGP levels in plasma from periodontitis-challenged PIA rats. Conclusions Pre-existence of periodontitis induced antibodies against citrullinated peptide derived from PPAD in rats with PIA. However, there were no differences in the development or severity of PIA between periodontitis challenged and periodontitis free rats. Electronic supplementary material The online version of this article (doi:10.1186/s12967-016-1067-6) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Kaja Eriksson
- Division of Periodontology, Department of Dental Medicine, Karolinska Institutet, Box 4064, 141 04, Huddinge, Sweden.
| | - Erik Lönnblom
- Section for Medical Inflammation Research, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, 171 77, Stockholm, Sweden
| | - Gregory Tour
- Division of Periodontology, Department of Dental Medicine, Karolinska Institutet, Box 4064, 141 04, Huddinge, Sweden.,Department of Laboratory Medicine, Karolinska Institutet at Karolinska University Hospital, Alfred Nobels Allé 8, 141 83, Huddinge, Sweden
| | - Anna Kats
- Division of Periodontology, Department of Dental Medicine, Karolinska Institutet, Box 4064, 141 04, Huddinge, Sweden
| | - Piotr Mydel
- Broegelmann Research Laboratory, Department of Clinical Science, University of Bergen, The Laboratory Building, 5th Floor, 5021, Bergen, Norway
| | - Pierre Georgsson
- Division of Periodontology, Department of Dental Medicine, Karolinska Institutet, Box 4064, 141 04, Huddinge, Sweden
| | - Catharina Hultgren
- Department of Laboratory Medicine, Karolinska Institutet at Karolinska University Hospital, Alfred Nobels Allé 8, 141 83, Huddinge, Sweden
| | - Nastya Kharlamova
- Rheumatology Unit, Department of Medicine, Karolinska University Hospital, Solna, Rheumatology Clinic D2:01, 171 76, Stockholm, Sweden
| | - Ulrika Norin
- Section for Medical Inflammation Research, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, 171 77, Stockholm, Sweden
| | - Jörgen Jönsson
- Division of Periodontology, Department of Dental Medicine, Karolinska Institutet, Box 4064, 141 04, Huddinge, Sweden
| | - Anna Lundmark
- Division of Periodontology, Department of Dental Medicine, Karolinska Institutet, Box 4064, 141 04, Huddinge, Sweden
| | - Annelie Hellvard
- Broegelmann Research Laboratory, Department of Clinical Science, University of Bergen, The Laboratory Building, 5th Floor, 5021, Bergen, Norway.,Malopolska Centre of Biotechnology, Jagiellonian University, Gronostajowa 7a, 30-387, Kraków, Poland
| | - Karin Lundberg
- Rheumatology Unit, Department of Medicine, Karolinska University Hospital, Solna, Rheumatology Clinic D2:01, 171 76, Stockholm, Sweden
| | - Leif Jansson
- Division of Periodontology, Department of Dental Medicine, Karolinska Institutet, Box 4064, 141 04, Huddinge, Sweden.,Department of Periodontology at Eastmaninstitutet, Stockholm County Council, Dalagatan 11, 113 24, Stockholm, Sweden
| | - Rikard Holmdahl
- Section for Medical Inflammation Research, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, 171 77, Stockholm, Sweden.,Center for Medical Immunopharmacology Research, Southern Medical University, Guangzhou, China
| | - Tülay Yucel-Lindberg
- Division of Periodontology, Department of Dental Medicine, Karolinska Institutet, Box 4064, 141 04, Huddinge, Sweden.
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Liu Z, Chen T, Sun W, Yuan Z, Yu M, Chen G, Guo W, Xiao J, Tian W. DNA Demethylation Rescues the Impaired Osteogenic Differentiation Ability of Human Periodontal Ligament Stem Cells in High Glucose. Sci Rep 2016; 6:27447. [PMID: 27273319 PMCID: PMC4897703 DOI: 10.1038/srep27447] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Accepted: 05/16/2016] [Indexed: 02/05/2023] Open
Abstract
Diabetes mellitus, characterized by abnormally high blood glucose levels, gives rise to impaired bone remodeling. In response to high glucose (HG), the attenuated osteogenic differentiation capacity of human periodontal ligament stem cells (hPDLSCs) is associated with the loss of alveolar bone. Recently, DNA methylation was reported to affect osteogenic differentiation of stem cells in pathological states. However, the intrinsic mechanism linking DNA methylation to osteogenic differentiation ability in the presence of HG is still unclear. In this study, we found that diabetic rats with increased DNA methylation levels in periodontal ligaments exhibited reduced bone mass and density. In vitro application of 5-aza-2′-deoxycytidine (5-aza-dC), a DNA methyltransferase inhibitor, to decrease DNA methylation levels in hPDLSCs, rescued the osteogenic differentiation capacity of hPDLSCs under HG conditions. Moreover, we demonstrated that the canonical Wnt signaling pathway was activated during this process and, under HG circumstances, the 5-aza-dC-rescued osteogenic differentiation capacity was blocked by Dickkopf-1, an effective antagonist of the canonical Wnt signaling pathway. Taken together, these results demonstrate for the first time that suppression of DNA methylation is able to facilitate the osteogenic differentiation capacity of hPDLSCs exposed to HG, through activation of the canonical Wnt signaling pathway.
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Affiliation(s)
- Zhi Liu
- Department of Oral and Maxillofacial Surgery, Hospital of Stomatology, Southwest Medical University, Luzhou 646000, P.R. China.,National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, P.R. China.,State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, P.R. China
| | - Tian Chen
- National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, P.R. China.,State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, P.R. China.,Department of Orthodontics, West China School of Stomatology, Sichuan University, Chengdu 610041, P.R. China
| | - Wenhua Sun
- National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, P.R. China.,State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, P.R. China
| | - Zongyi Yuan
- Department of Oral and Maxillofacial Surgery, Hospital of Stomatology, Southwest Medical University, Luzhou 646000, P.R. China
| | - Mei Yu
- National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, P.R. China.,State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, P.R. China
| | - Guoqing Chen
- National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, P.R. China.,State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, P.R. China
| | - Weihua Guo
- National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, P.R. China.,State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, P.R. China
| | - Jingang Xiao
- Department of Oral and Maxillofacial Surgery, Hospital of Stomatology, Southwest Medical University, Luzhou 646000, P.R. China.,Orofacial Reconstruction and Regeneration Laboratory, Hospital of Stomatology, Southwest Medical University, Luzhou 646000, P.R. China
| | - Weidong Tian
- National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, P.R. China.,State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, P.R. China.,Department of Oral and Maxillofacial Surgery, West China School of Stomatology, Sichuan University, Chengdu 610041, P.R. China
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Pink C, Kocher T, Meisel P, Dörr M, Markus MRP, Jablonowski L, Grotevendt A, Nauck M, Holtfreter B. Longitudinal effects of systemic inflammation markers on periodontitis. J Clin Periodontol 2015; 42:988-97. [DOI: 10.1111/jcpe.12473] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/07/2015] [Indexed: 01/04/2023]
Affiliation(s)
- Christiane Pink
- Unit of Periodontology; Department of Restorative Dentistry, Periodontology, Endodontology, Pedodontics and Primary Prevention; University Medicine Greifswald; Greifswald Germany
| | - Thomas Kocher
- Unit of Periodontology; Department of Restorative Dentistry, Periodontology, Endodontology, Pedodontics and Primary Prevention; University Medicine Greifswald; Greifswald Germany
| | - Peter Meisel
- Unit of Periodontology; Department of Restorative Dentistry, Periodontology, Endodontology, Pedodontics and Primary Prevention; University Medicine Greifswald; Greifswald Germany
| | - Marcus Dörr
- Department of Internal Medicine B; University Medicine Greifswald; Greifswald Germany
- DZHK (German Centre for Cardiovascular Research); Partner Site Greifswald; Greifswald Germany
| | - Marcello R. P. Markus
- Department of Internal Medicine B; University Medicine Greifswald; Greifswald Germany
- DZHK (German Centre for Cardiovascular Research); Partner Site Greifswald; Greifswald Germany
- Department Study of Health in Pomerania/Clinical-Epidemiological Research; Institute for Community Medicine; University Medicine Greifswald; Greifswald Germany
- DZD (German Center for Diabetes Research); Partner Site Greifswald; Greifswald Germany
| | - Lukasz Jablonowski
- Unit of Periodontology; Department of Restorative Dentistry, Periodontology, Endodontology, Pedodontics and Primary Prevention; University Medicine Greifswald; Greifswald Germany
| | - Anne Grotevendt
- Institute of Clinical Chemistry and Laboratory Medicine; University Medicine Greifswald; Greifswald Germany
| | - Matthias Nauck
- Institute of Clinical Chemistry and Laboratory Medicine; University Medicine Greifswald; Greifswald Germany
| | - Birte Holtfreter
- Unit of Periodontology; Department of Restorative Dentistry, Periodontology, Endodontology, Pedodontics and Primary Prevention; University Medicine Greifswald; Greifswald Germany
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36
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Janket SJ, Ackerson LK. What is passing through toll gate 4: lipids or infection? Arch Oral Biol 2015; 60:664-6. [PMID: 25645352 DOI: 10.1016/j.archoralbio.2015.01.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2014] [Accepted: 01/12/2015] [Indexed: 12/16/2022]
Abstract
In this issue of the journal, Zhou and colleagues reported that hyperlipidemia might play a role in the expression of pro-inflammatory cytokines such as TNF-α and IL-1β which are associated with type 2 diabetes (T2D) and periodontitis. Not only hyperlipidemia but many obesity-related conditions such as hyperglycemia, insulin resistance, and metabolic syndrome are perceived as "threats" or as a "danger" by the innate immune system and express these cytokines. T2D is one of these conditions that elicit metabolic inflammation (meta-inflammation) and the hallmark of meta-inflammation is low grade inflammation. In addition, T2D and periodontitis are strongly correlated to each other and to innate immunity. This creates a confounding relationship. The dental research community is now required to acknowledge the concept that infection is not the only trigger for innate immune activation. The review by Zhou et al. may be the first step in the right direction to establish the orthogonal contribution of oral infection independent of meta-inflammation.
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Affiliation(s)
- Sok-Ja Janket
- Center for Clinical Research, Department of General Dentistry and Periodontology, Boston University Henry M. Goldman School of Dental Medicine, Boston, MA, USA.
| | - Leland K Ackerson
- Community Health and Sustainability, University of Massachusetts, Lowell, MA, USA
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Zhu M, Belkina AC, DeFuria J, Carr JD, Van Dyke TE, Gyurko R, Nikolajczyk BS. B cells promote obesity-associated periodontitis and oral pathogen-associated inflammation. J Leukoc Biol 2014; 96:349-57. [PMID: 24782490 DOI: 10.1189/jlb.4a0214-095r] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Individuals with T2D and PD suffer significantly from the ability of one disease to intensify the other. Disease-associated inflammation is one mechanism thought to fuel this pathogenic feed-forward loop. Several lines of evidence indicate that proinflammatory B cells promote T2D and PD; thus, B cells are top candidates for a cell type that predisposes PD in T2D. To test directly the role of B cells in T2D-associated PD, we compared outcomes from oral Porphyromonas gingivalis challenge of lean WT or B cell-null mice with outcomes from mice that were obese and insulin-resistant before challenge. Obese WT mice responded to oral P. gingivalis challenge with significant periodontal bone loss, whereas obese B cell-null mice were protected completely from PD. By contrast, lean WT and B cell-null mice suffer similar periodontal bone loss in response to oral pathogen. B cells from obese/insulin-resistant hosts also support oral osteoclastogenesis and both oral and systemic production of inflammatory cytokines, including pro-osteoclastogenic TNF-α and MIP-2, an ortholog of human IL-8. B cells furthermore impact AT inflammation in obese, P. gingivalis-infected hosts. Taken together, these data show that fundamentally different mechanisms regulate PD in lean and obese hosts, with B cells able to promote PD only if the hosts are "primed" by obesity. These results justify more intense analysis of obesity-associated changes in B cells that predispose PD in human T2D.
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Affiliation(s)
- Min Zhu
- Department of Microbiology, Boston University School of Medicine, Boston, Massachusetts, USA
| | - Anna C Belkina
- Department of Microbiology, Boston University School of Medicine, Boston, Massachusetts, USA
| | - Jason DeFuria
- Department of Microbiology, Boston University School of Medicine, Boston, Massachusetts, USA
| | - Jordan D Carr
- Department of Microbiology, Boston University School of Medicine, Boston, Massachusetts, USA
| | - Thomas E Van Dyke
- Department of Applied Oral Sciences, The Forsyth Institute, Cambridge, Massachusetts, USA; and
| | - Robert Gyurko
- Department of Periodontology, Boston University Goldman School of Dental Medicine, Boston, Massachusetts, USA
| | - Barbara S Nikolajczyk
- Department of Microbiology, Boston University School of Medicine, Boston, Massachusetts, USA;
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