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Abstract
Recent advances in our understanding of the microbial populations that colonize the human mouth, their acquisition, interdependency, and coevolution with the host, bring a different perspective to the mechanisms underpinning the maintenance of periodontal health and the development of disease. In this work we suggest that our knowledge map of the etiology of periodontal health and disease can be viewed as a broad, highly connected, and integrated system that spans the entire spectrum of microbe/host/clinical interactions. The overall concept of present Periodontology 2000, that the microbial biofilm can be considered a human tissue of bacteriological origin, is entirely consistent with this integrated system view. The health-associated community structure of microbial biofilms can be considered a system that is normally resilient to perturbation. Equally, there is evidence to suggest that the dysbiotic community structure in disease may share similar resilience properties. In both instances, the resilience may be governed by the precise makeup of the acquired microbiome and by the genetics of the host. Understanding the mechanisms that enable the resistance to change of healthy and dysbiotic microbial populations may be important in the development of approaches to prevent the progression of disease and to restore health in diseased individuals.
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Affiliation(s)
- Susan Joseph
- Centre for Host-Microbiome Interactions, Faculty of Dentistry, Oral & Craniofacial Sciences, King's College London, London, UK
| | - Michael A Curtis
- Centre for Host-Microbiome Interactions, Faculty of Dentistry, Oral & Craniofacial Sciences, King's College London, London, UK
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2
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Ebersole JL, Nagarajan R, Kirakodu S, Gonzalez OA. Transcriptomic phases of periodontitis lesions using the nonhuman primate model. Sci Rep 2021; 11:9282. [PMID: 33927312 PMCID: PMC8085193 DOI: 10.1038/s41598-021-88803-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Accepted: 04/09/2021] [Indexed: 11/09/2022] Open
Abstract
We used a nonhuman primate model of ligature-induced periodontitis to identify patterns of gingival transcriptomic after changes demarcating phases of periodontitis lesions (initiation, progression, resolution). A total of 18 adult Macaca mulatta (12-22 years) had ligatures placed (premolar, 1st molar teeth) in all 4 quadrants. Gingival tissue samples were obtained (baseline, 2 weeks, 1 and 3 months during periodontitis and at 5 months resolution). Gene expression was analyzed by microarray [Rhesus Gene 1.0 ST Array (Affymetrix)]. Compared to baseline, a large array of genes were significantly altered at initiation (n = 6049), early progression (n = 4893), and late progression (n = 5078) of disease, with the preponderance being up-regulated. Additionally, 1918 genes were altered in expression with disease resolution, skewed towards down-regulation. Assessment of the genes demonstrated specific profiles of epithelial, bone/connective tissue, apoptosis/autophagy, metabolism, regulatory, immune, and inflammatory responses that were related to health, stages of disease, and tissues with resolved lesions. Unique transcriptomic profiles occured during the kinetics of the periodontitis lesion exacerbation and remission. We delineated phase specific gene expression profiles of the disease lesion. Detection of these gene products in gingival crevicular fluid samples from human disease may contribute to a better understanding of the biological dynamics of the disease to improve patient management.
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Affiliation(s)
- Jeffrey L Ebersole
- Department of Biomedical Sciences, School of Dental Medicine, B221, University of Nevada Las Vegas, 1001 Shadow Lane, Las Vegas, NV, 89106, USA.
- Center for Oral Health Research College of Dentistry, University of Kentucky, Lexington, KY, USA.
| | | | - Sreenatha Kirakodu
- Center for Oral Health Research College of Dentistry, University of Kentucky, Lexington, KY, USA
| | - Octavio A Gonzalez
- Center for Oral Health Research College of Dentistry, University of Kentucky, Lexington, KY, USA
- Division of Periodontology, University of Kentucky, Lexington, KY, USA
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Kozak M, Dabrowska-Zamojcin E, Mazurek-Mochol M, Pawlik A. Cytokines and Their Genetic Polymorphisms Related to Periodontal Disease. J Clin Med 2020; 9:E4045. [PMID: 33327639 PMCID: PMC7765090 DOI: 10.3390/jcm9124045] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2020] [Revised: 11/28/2020] [Accepted: 12/10/2020] [Indexed: 12/19/2022] Open
Abstract
Periodontal disease (PD) is a chronic inflammatory disease caused by the accumulation of bacterial plaque biofilm on the teeth and the host immune responses. PD pathogenesis is complex and includes genetic, environmental, and autoimmune factors. Numerous studies have suggested that the connection of genetic and environmental factors induces the disease process leading to a response by both T cells and B cells and the increased synthesis of pro-inflammatory mediators such as cytokines. Many studies have shown that pro-inflammatory cytokines play a significant role in the pathogenesis of PD. The studies have also indicated that single nucleotide polymorphisms (SNPs) in cytokine genes may be associated with risk and severity of PD. In this narrative review, we discuss the role of selected cytokines and their gene polymorphisms in the pathogenesis of periodontal disease.
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Affiliation(s)
- Małgorzata Kozak
- Chair and Department of Dental Prosthetics, Pomeranian Medical University, Powstańców Wlkp 72, 70-111 Szczecin, Poland;
| | - Ewa Dabrowska-Zamojcin
- Department of Pharmacology, Pomeranian Medical University, Powstańców Wlkp 72, 70-111 Szczecin, Poland;
| | - Małgorzata Mazurek-Mochol
- Department of Periodontology, Pomeranian Medical University, Powstańców Wlkp 72, 70-111 Szczecin, Poland;
| | - Andrzej Pawlik
- Department of Physiology, Pomeranian Medical University, Powstańców Wlkp 72, 70-111 Szczecin, Poland
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Shan C, Ma T, Wang TT, Wu L, Abasijiang A, Zhao J. Association of Polymorphism in IL-18 Gene with Periodontitis in Uyghur Adults in Xinjiang and Evidence from Six Case-Control Studies with a Comprehensive Analysis. Immunol Invest 2020; 51:511-530. [PMID: 33143466 DOI: 10.1080/08820139.2020.1841222] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
AIM The aim of the study was to evaluate the association of IL-18 137 G > C, 607 C > A gene polymorphism in Uyghur population with chronic periodontitis (CP) and combine the results with the meta-analysis. METHODS In a case-control study, 200 cases with CP and 100 healthy controls were recruited; IL-18 137 G > C, 607 C > A genotyping was performed by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP). In the meta-analysis, we used electronic databases, including CNKI, Wan Fang, PubMed, EMBASE databases etc.to obtain relevant research published through June 2020. Studies were considered eligible if odds ratios (ORs) and 95% confidence intervals (95% CI) were provided or calculated from the given data. The size of the combined effect was calculated using STATA 15.0. RESULTS Our study revealed significant association between CP and IL-18 137 G > C (P = .045, OR = 1.67), 607 C > A (P = .045, OR = 1.67). The overall meta-analysis revealed significant associations between IL-18 137 G > C polymorphism and CP risk in Allele, dominant, co-dominant and recessive genetic models. The subgroup analysis also showed a significant association between the IL-18 137 G > C and risk for periodontitis and aggressive periodontitis in the Asian (GC+ CC VS. GG: P = .047, OR = 1.64,95%CI = 1.01-2.68). CONCLUSIONS IL-18 137 G > C, 607 C > A could be associated with susceptibility to periodontitis in Uyghur population. Further case-control of candidate genes studies targeting larger sample sizes and different ethnic groups are needed to arrive more accurate conclusions.
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Affiliation(s)
- Chao Shan
- Department of dentistry, Xinjiang Medical University, Ürümqi, China.,Department of Endodontics, First Affiliated Hospital of Xin Jiang Medical University and College of Stomatology of Xin Jiang Medical University, Ürümqi, China
| | - Ting Ma
- Department of dentistry, Xinjiang Medical University, Ürümqi, China.,Department of Endodontics, First Affiliated Hospital of Xin Jiang Medical University and College of Stomatology of Xin Jiang Medical University, Ürümqi, China.,Department of Endodontics, Xinjiang Uygur Autonomous Region Institute of Stomatology, Ürümqi, China
| | - Ting Ting Wang
- Department of dentistry, Xinjiang Medical University, Ürümqi, China.,Department of Endodontics, First Affiliated Hospital of Xin Jiang Medical University and College of Stomatology of Xin Jiang Medical University, Ürümqi, China
| | - Long Wu
- Department of dentistry, Xinjiang Medical University, Ürümqi, China.,Department of Endodontics, First Affiliated Hospital of Xin Jiang Medical University and College of Stomatology of Xin Jiang Medical University, Ürümqi, China.,Department of Endodontics, Xinjiang Uygur Autonomous Region Institute of Stomatology, Ürümqi, China
| | - Aisaiti Abasijiang
- Department of dentistry, Xinjiang Medical University, Ürümqi, China.,Department of Endodontics, First Affiliated Hospital of Xin Jiang Medical University and College of Stomatology of Xin Jiang Medical University, Ürümqi, China.,Department of Endodontics, Xinjiang Uygur Autonomous Region Institute of Stomatology, Ürümqi, China
| | - Jin Zhao
- Department of dentistry, Xinjiang Medical University, Ürümqi, China.,Department of Endodontics, First Affiliated Hospital of Xin Jiang Medical University and College of Stomatology of Xin Jiang Medical University, Ürümqi, China.,Department of Endodontics, Xinjiang Uygur Autonomous Region Institute of Stomatology, Ürümqi, China
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5
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Affiliation(s)
- Huijing Xiang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure Shanghai Institute of Ceramics Chinese Academy of Sciences Shanghai China
| | - Yu Chen
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure Shanghai Institute of Ceramics Chinese Academy of Sciences Shanghai China
- Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of Sciences Beijing China
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6
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Abstract
In this review we critically summarize the evidence base and the progress to date regarding the genomic basis of periodontal disease and tooth morbidity (ie, dental caries and tooth loss), and discuss future applications and research directions in the context of precision oral health and care. Evidence for these oral/dental traits from genome-wide association studies first emerged less than a decade ago. Basic and translational research activities in this domain are now under way by multiple groups around the world. Key departure points in the oral health genomics discourse are: (a) some heritable variation exists for periodontal and dental diseases; (b) the environmental component (eg, social determinants of health and behavioral risk factors) has a major influence on the population distribution but probably interacts with factors of innate susceptibility at the person-level; (c) sizeable, multi-ethnic, well-characterized samples or cohorts with high-quality measures on oral health outcomes and genomics information are required to make decisive discoveries; (d) challenges remain in the measurement of oral health and disease, with current periodontitis and dental caries traits capturing only a part of the health-disease continuum, and are little or not informed by the underlying biology; (e) the substantial individual heterogeneity that exists in the clinical presentation and lifetime trajectory of oral disease can be identified and leveraged in a precision medicine framework or, if unappreciated, can hamper translational efforts. In this review we discuss how composite or biologically informed traits may offer improvements over clinically defined ones for the genomic interrogation of oral diseases. We demonstrate the utility of the results of genome-wide association studies for the development and testing of a genetic risk score for severe periodontitis. We conclude that exciting opportunities lie ahead for improvements in the oral health of individual patients and populations via advances in our understanding of the genomic basis of oral health and disease. The pace of new discoveries and their equitable translation to practice will largely depend on investments in the education and training of the oral health care workforce, basic and population research, and sustained collaborative efforts..
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Affiliation(s)
- Thiago Morelli
- Department of PeriodontologySchool of DentistryUniversity of North Carolina at Chapel HillChapel HillNorth Carolina, USA
| | - Cary S. Agler
- Department of Oral and Craniofacial Health SciencesSchool of DentistryUniversity of North Carolina at Chapel HillChapel HillNorth Carolina, USA
| | - Kimon Divaris
- Department of Pediatric DentistrySchool of DentistryUniversity of North Carolina at Chapel HillChapel HillNorth Carolina, USA
- Department of EpidemiologyGillings School of Global Public HealthUniversity of North Carolina at Chapel HillChapel HillNorth Carolina, USA
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7
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Tan J, Zhang M, Hai Z, Wu C, Lin J, Kuang W, Tang H, Huang Y, Chen X, Liang G. Sustained Release of Two Bioactive Factors from Supramolecular Hydrogel Promotes Periodontal Bone Regeneration. ACS NANO 2019; 13:5616-5622. [PMID: 31059238 DOI: 10.1021/acsnano.9b00788] [Citation(s) in RCA: 110] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Intact and stable bone reconstruction is ideal for the treatment of periodontal bone destruction but remains challenging. In research, biomaterials are used to encapsulate stem cells or bioactive factors for periodontal bone regeneration, but, to the best of our knowledge, using a supramolecular hydrogel to encapsulate bioactive factors for their sustained release in bone defect areas to promote periodontal bone regeneration has not been reported. Herein, we used a well-studied hydrogelator, NapFFY, to coassemble with SDF-1 and BMP-2 to prepare a supramolecular hydrogel, SDF-1/BMP-2/NapFFY. In vitro and in vivo results indicated that these two bioactive factors were ideally, synchronously, and continuously released from the hydrogel to effectively promote the regeneration and reconstruction of periodontal bone tissues. Specifically, after the bone defect areas were treated with our SDF-1/BMP-2/NapFFY hydrogel for 8 weeks using maxillary critical-sized periodontal bone defect model rats, a superior bone regeneration rate of 56.7% bone volume fraction was achieved in these rats. We anticipate that our SDF-1/BMP-2/NapFFY hydrogel could replace bone transplantation in the clinic for the repair of periodontal bone defects and periodontally accelerated osteogenic orthodontics in the near future.
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Affiliation(s)
- Jiali Tan
- Department of Orthodontics, Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Hospital of Stomatology , Sun Yat-sen University , 56 Lingyuan West Road , Guangzhou , Guangdong 510055 , China
| | - Mei Zhang
- Department of Orthodontics, Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Hospital of Stomatology , Sun Yat-sen University , 56 Lingyuan West Road , Guangzhou , Guangdong 510055 , China
| | - Zijuan Hai
- Institutes of Physical Science and Information Technology , Anhui University , 110 Jiulong Road , Hefei , Anhui 230601 , China
| | - Chengfan Wu
- Hefei National Laboratory of Physical Sciences at Microscale, Department of Chemistry , University of Science and Technology of China , 96 Jinzhai Road , Hefei , Anhui 230026 , China
| | - Jiong Lin
- Department of Orthodontics, Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Hospital of Stomatology , Sun Yat-sen University , 56 Lingyuan West Road , Guangzhou , Guangdong 510055 , China
| | - Wen Kuang
- Hefei National Laboratory of Physical Sciences at Microscale, Department of Chemistry , University of Science and Technology of China , 96 Jinzhai Road , Hefei , Anhui 230026 , China
| | - Hang Tang
- Department of Orthodontics, Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Hospital of Stomatology , Sun Yat-sen University , 56 Lingyuan West Road , Guangzhou , Guangdong 510055 , China
| | - Yulei Huang
- Department of Orthodontics, Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Hospital of Stomatology , Sun Yat-sen University , 56 Lingyuan West Road , Guangzhou , Guangdong 510055 , China
| | - Xiaodan Chen
- Department of Orthodontics, Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Hospital of Stomatology , Sun Yat-sen University , 56 Lingyuan West Road , Guangzhou , Guangdong 510055 , China
| | - Gaolin Liang
- Hefei National Laboratory of Physical Sciences at Microscale, Department of Chemistry , University of Science and Technology of China , 96 Jinzhai Road , Hefei , Anhui 230026 , China
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Ebersole JL, Lambert J, Bush H, Huja PE, Basu A. Serum Nutrient Levels and Aging Effects on Periodontitis. Nutrients 2018; 10:E1986. [PMID: 30558282 PMCID: PMC6316450 DOI: 10.3390/nu10121986] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Revised: 12/06/2018] [Accepted: 12/12/2018] [Indexed: 12/12/2022] Open
Abstract
Periodontal disease damages tissues as a result of dysregulated host responses against the chronic bacterial biofilm insult and approximately 50% of US adults >30 years old exhibit periodontitis. The association of five blood nutrients and periodontitis were evaluated due to our previous findings regarding a potential protective effect for these nutrients in periodontal disease derived from the US population sampled as part of the National Health and Nutrition Examination Survey (1999⁻2004). Data from over 15,000 subjects was analyzed for blood levels of cis-β-carotene, β-cryptoxanthin, folate, vitamin D, and vitamin E, linked with analysis of the presence and severity of periodontitis. Moderate/severe disease patients had lower cis-β-carotene levels across all racial/ethnic groups and these decreased levels in moderate/severe periodontitis were exacerbated with age. β-cryptoxanthin demonstrated lower levels in severe disease patients across the entire age range in all racial/ethnic groups. Folate differences were evident across the various age groups with consistently lower levels in periodontitis patients >30 years and most pronounced in females. Lower levels of vitamin D were consistently noted across the entire age range of patients with a greater difference seen in females with periodontitis. Finally, an analytical approach to identify interactions among these nutrients related to age and periodontitis showed interactions of vitamin D in females, and folate with race in the population. These findings suggest that improving specific nutrient intake leading to elevated blood levels of a combination of these protective factors may provide a novel strategy to affect the significant increase in periodontitis that occurs with aging.
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Affiliation(s)
- Jeffrey L Ebersole
- Department of Biomedical Sciences, School of Dental Medicine, University of Nevada Las Vegas, 1001 Shadow Lane, B221, MS 7425, Las Vegas, NV 89106, USA.
| | - Joshua Lambert
- College of Nursing, University of Cincinnati; Cincinnati, OH 45221, USA.
| | - Heather Bush
- Department of Biostatistics, College of Public Health, University of Kentucky; Lexington, KY 40536, USA.
| | - Pinar Emecen Huja
- Department of Periodontics, School of Dentistry, Medical University of South Carolina; Charleston, SC 29425, USA.
| | - Arpita Basu
- Department of Kinesiology and Nutrition Sciences, School of Allied Health Sciences, University of Nevada Las Vegas, Las Vegas, NV 89106, USA.
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Yang SL, Huang SJ. Interleukin-10 polymorphisms (rs1800871, rs1800872 and rs1800896) and periodontitis risk: A meta-analysis. Arch Oral Biol 2018; 97:59-66. [PMID: 30343215 DOI: 10.1016/j.archoralbio.2018.10.012] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2018] [Revised: 10/03/2018] [Accepted: 10/11/2018] [Indexed: 02/02/2023]
Abstract
OBJECTIVE The objective of this meta-analysis was to assess the association between three interleukin-10 (IL-10) promoter single nucleotide polymorphisms (rs1800871, rs1800872, and rs1800896) and periodontitis risk. METHODS A systematic search was conducted in PubMed, Embase, and China National Knowledge Infrastructure databases and the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines were followed. RESULTS Twenty-six studies met the inclusion criteria. The pooled analysis showed that rs1800871 was associated with an increased periodontitis risk under dominant model (CT + TT vs. CC: p = 0.004, OR = 1.79, 95% CI: 1.21-2.65) in Latin American populations but not in Asian (CT + TT vs. CC: p = 0.229, OR = 0.81, 95% CI: 0.58-1.14) and Caucasian (CT + TT vs. CC: p = 0.910, OR = 1.02, 95% CI: 0.75-1.39) populations. Similarly, rs1800872 conferred an increased risk of periodontitis only in Latin American populations (CA + AA vs. CC: p = 0.012, OR = 2.32, 95% CI: 1.20-4.47; A allele vs. C allele: p = 0.001, OR = 1.61, 95% CI: 1.22-2.14). No significant association was observed between rs1800896 and periodontitis risk. Subgrouping data according to periodontitis type revealed that rs1800872 was associated with both chronic periodontitis (A allele vs. C allele: p = 0.011, OR = 1.72, 95% CI: 1.13-2.62) and aggressive periodontitis (A allele vs. C allele: p = 0.038, OR = 1.32, 95% CI: 1.02-1.72). CONCLUSION The studies reviewed support that the IL-10 rs1800871 and rs1800872 polymorphisms may represent a potential genetic biomarker for periodontitis risk in Latin American populations.
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Affiliation(s)
- Shu-Liang Yang
- Polyclinic Department, Affiliated Stomatology Hospital, School of Medicine, Zhejiang University, Hangzhou, China.
| | - Shi-Jie Huang
- Department of Stomatology, Central Hospital of China Railway No. 2 Engineering Group, Chengdu, China
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