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Sheibak N, Heidari Z, Mahmoudzadeh-Sagheb H. Immunoexpression of interferon-gamma in the interdental gingiva of chronic periodontitis patients with interferon-gamma (+874A/T) rs62559044 polymorphism. J Oral Biol Craniofac Res 2022; 12:727-732. [DOI: 10.1016/j.jobcr.2022.08.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 07/25/2022] [Accepted: 08/20/2022] [Indexed: 10/15/2022] Open
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Liu X, Li H. A Systematic Review and Meta-Analysis on Multiple Cytokine Gene Polymorphisms in the Pathogenesis of Periodontitis. Front Immunol 2022; 12:713198. [PMID: 35046930 PMCID: PMC8761621 DOI: 10.3389/fimmu.2021.713198] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2021] [Accepted: 08/10/2021] [Indexed: 12/30/2022] Open
Abstract
Aim Periodontitis is an inflammatory disease that destroys both soft and hard periodontal tissues. However, a complex periodontal cytokine network remains unclear. This systematic review explored multiple cytokine gene polymorphisms in the pathogenesis of periodontitis. Material and Methods A systematic search was performed using the databases from previous publications, which indicated the association between cytokine polymorphisms and periodontitis pathogenesis. Meta-analysis was conducted using fixed or randomized models to calculate the significance of multiple cytokine polymorphisms. A total of 147 articles were analyzed with polymorphisms in 12 interleukins [Th1 (IL-2, IFN-γ, and TNF-α), Th2 (IL-4 and IL-13), Th17 (IL-1α, IL-1β, IL-6, and IL-17), and Treg cytokines (IL-10 and TGF-β)]. Doi plot was used to probe the occurrence of publication bias. Results The polymorphisms of IL-2 and TNF-α of Th1 cytokine family may be associated with the pathogenesis or the prevention of periodontitis risk, while the polymorphism of IFN-γ is not related to periodontitis risk. The polymorphisms for IL-4 and IL-13 of Th2 cytokine family are not found to be associated with the pathogenesis of periodontitis. For the polymorphisms of the members of Th17 cytokine family, different IL-1α polymorphisms may have inverse actions in the pathogenesis of periodontitis. IL-1β is a noteworthy cytokine biomarker in periodontitis development and progression. IL-6 may have a protective function in the inflammatory responses of periodontitis, and IL-17 has a weak relationship the inflammatory responses. The polymorphisms for the members of Treg cell cytokines may have a protective function against periodontitis risk. LFK indexes show the major asymmetry due to publication bias. Conclusion IL-1β is a notable cytokine biomarker in periodontitis risk. Treg cytokines favor an anti-inflammatory and protective environment. Further data are needed to confirm the present conclusion due to publication bias.
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Affiliation(s)
- Xin Liu
- Department of Stomatology, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Hui Li
- Department of Stomatology, China-Japan Union Hospital of Jilin University, Changchun, China
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Maulani C, Auerkari EI, Masulili SLC, Kusdhany LS, Soeroso Y, Soedarsono N. Interferon-Gamma (IFNg) +874A/T Polymorphism Does Not Significantly Affect the Severity of Periodontitis. Eur J Dent 2021; 16:327-332. [PMID: 34784626 PMCID: PMC9339941 DOI: 10.1055/s-0041-1735434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
Abstract
OBJECTIVES Interferon-gamma (IFNg) is an immune-regulatory cytokine with a role in host responses to periodontitis. Genetic factors have been reported to modify the corresponding protein expression. The objective of this study was to evaluate the association and role of IFNg polymorphisms, such as IFNg +874 A/T, and the susceptibility to periodontitis. MATERIALS AND METHODS A total of 100 unrelated subjects were included in the present study. Genomic deoxyribonucleic acid (DNA) was obtained from peripheral blood of 43 patients with mild periodontitis and 57 patients with severe periodontitis. The determined clinical parameters of periodontitis included probing depth, clinical attachment loss, and papilla bleeding index. The oral hygiene indicators were also assessed. The level of IFNg was determined from the gingival crevicular fluid by enzyme-linked immunosorbent assay technique. The IFNg +874 A/T polymorphisms were analyzed from peripheral blood by the method of restriction fragment length polymorphism-polymerase chain reaction. STATISTICAL ANALYSIS Statistical analysis of the results was conducted using chi-squared testing for categorical data. Independent t-tests and Mann-Whitney U tests were used for numeric data. Kruskal-Wallis testing was used to compare genotypes concerning for IFNg +874 A/T polymorphism. A p-value < 0.05 was assumed for statistical significance. RESULTS Analysis of the IFNg +874 A/T polymorphism showed no significant differences with the level of IFNg. No significant differences were observed either in IFNg +874 A/T polymorphism between the subjects with mild periodontitis and those with severe periodontitis (p > 0.05). The subjects with severe periodontitis showed marginally but not significantly higher levels of IFNg compared with subjects with mild periodontitis (p > 0.05). CONCLUSION The polymorphism of IFNg +874 A/T was not associated with the level of IFNg nor with the risk of periodontitis in this study.
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Affiliation(s)
| | - Elza Ibrahim Auerkari
- Department of Oral Biology, Faculty of Dentistry, Universitas Indonesia, Jakarta, Indonesia
| | - Sri Lelyati C Masulili
- Department of Periodontology, Faculty of Dentistry, Universitas Indonesia, Jakarta, Indonesia
| | - Lindawati S Kusdhany
- Department of Prosthodontics, Faculty of Dentistry, Universitas Indonesia, Jakarta, Indonesia
| | - Yuniarti Soeroso
- Department of Periodontology, Faculty of Dentistry, Universitas Indonesia, Jakarta, Indonesia
| | - Nurtami Soedarsono
- Department of Oral Biology, Faculty of Dentistry, Universitas Indonesia, Jakarta, Indonesia
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Chinniah R, Sevak V, Pandi S, Ravi PM, Vijayan M, Kannan A, Karuppiah B. HLA-DRB1 genes and the expression dynamics of HLA CIITA determine the susceptibility to T2DM. Immunogenetics 2021; 73:291-305. [PMID: 33754173 DOI: 10.1007/s00251-021-01212-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Accepted: 03/01/2021] [Indexed: 12/18/2022]
Abstract
Type 2 diabetes mellitus (T2DM) is a disease with polygenic inheritance. The expression of major histocompatibility complex class II genes are regulated by several trans-activators. We have studied the expression of HLA-DRB1, RFX, CIITA-P1, PIV transactivators, immunophenotyping of cells, SNPs in CIITA-168 (A/G) and IFN-γ + 874 (T/A) in T2DM patients and controls (n = 201 each). We observed increased frequencies of DRB1*03, DRB1*04 and DRB1*07 and decreased frequencies of DRB1*10, DRB1*14, and DRB1*15 alleles among patients. Significant up-regulations of HLA-DRB1 genes were observed in patients (p < 0.0001). Down-regulated expressions were documented in DRB1*03-homo (p < 0.002) and DRB1*04-homo (p < 0.009) patients. No significant differences were observed for CIITA-P1 expression except DRB1*04-pooled (p < 0.0113). The CIITA-PIV was up-regulated in overall (p < 0.0001), DRB1*03-pooled (p < 0.0006), DRB1*03-hetero (p < 0.0006) and DRB1*03-homo (p < 0.001) T2DM patients. However, significant down-regulations were documented for DRB1*04-pooled (p < 0.040), DRB1*04-hetero (p < 0.060), and DRB1*04-homo (p < 0.027) combinations. Further, significant down-regulations of RFX5 were observed in overall (p < 0.0006), DRB1*04-pooled (p < 0.0022), and DRB1*04-hetero (p < 0.0004) combinations. Immunophenotyping studies revealed significant increase of CD45+ CD14-, CD19+, CD14- and CD8 cells and elevated level of expression of IFN-γ (p < 0.0001) in patients. A significant increase of TT (p < 3.35 × 10-6) and decrease of TA (p < 4.57 × 10-4) genotypes of IFN-γ + 874 (T/A) and an increase of GG (p < 0.001) and decrease of AG (p < 8.24 × 10-5) genotypes of CIITA-168 A/G SNPs were observed. The combinatorial analysis revealed susceptible associations for DRB1*03 + AA, *03 + AG, *03 + GG and *04 + GG and protective associations for DRB1*10 + AG, *10 + GG, *15 + AG, and *14 + GG combinations. Thus, the present study corroborated the effect of differential expressions of promoters of risk alleles in the pathogenesis of T2DM.
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Affiliation(s)
- Rathika Chinniah
- Department of Immunology, School of Biological Sciences, Madurai, Tamil Nadu, 625021, India
| | - Vandit Sevak
- Department of Immunology, School of Biological Sciences, Madurai, Tamil Nadu, 625021, India
| | - Sasiharan Pandi
- Department of Immunology, School of Biological Sciences, Madurai, Tamil Nadu, 625021, India
| | - Padma Malini Ravi
- Department of Immunology, School of Biological Sciences, Madurai, Tamil Nadu, 625021, India
| | - Murali Vijayan
- Department of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, 79430, USA
| | - Arun Kannan
- The Madurai Institute of Diabetes and Endocrine Practice Research, Madurai, Tamil Nadu, 625 001, India
| | - Balakrishnan Karuppiah
- Department of Immunology, School of Biological Sciences, Madurai, Tamil Nadu, 625021, India.
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Heidari Z, Moudi B, Mahmoudzadeh-Sagheb H. Immunomodulatory factors gene polymorphisms in chronic periodontitis: an overview. BMC Oral Health 2019; 19:29. [PMID: 30755190 PMCID: PMC6373099 DOI: 10.1186/s12903-019-0715-7] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Accepted: 01/14/2019] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND Chronic periodontitis (CP), defines as destruction of the supporting tissues of the teeth and resorption of the alveolar bone. It is widespread in human populations and represent an important problem for public health. CP results from inflammatory mechanisms created by the interaction between environmental and host genetic factors that confer the individual susceptibility to the disease. AIM The aim of the current study was to explore and summarize some functional biomarkers that are associated with CP susceptibility. METHODS CP is considered to be a multifactorial disease. The pathogenesis of multifactorial diseases is characterized by various biological pathways. The studies revealed that polymorphisms were associated with susceptibility to periodontal diseases. In other word, genetic variations can change the development of CP. However, there are some conflicting results, because there are different variations in frequency of some alleles in any populations. Therefore, we conducted the current review to completely understanding the special biomarkers for CP. RESULTS There is some evidence that SNPs in the IL-1α, IL-1β, IL1RN, IL-6, IL-10, TNF-α, TGF-β1, IFN-γ and VDR may be associated with CP susceptibility. CONCLUSION In conclusion, numerous studies have reported the host genetic factors associated with CP susceptibility and related traits. Therefore, it is prevail to study the multiple SNPs and their effects to find the useful diagnosis methods. The current study will investigate the relationship between polymorphisms in cytokine genes and the susceptibility to the chronic periodontitis.
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Affiliation(s)
- Zahra Heidari
- 0000 0004 0612 8339grid.488433.0Infectious Diseases and Tropical Medicine Research Center, Zahedan University of Medical Sciences, Zahedan, Iran ,0000 0004 0612 8339grid.488433.0Department of Histology, School of Medicine, Zahedan University of Medical Sciences, Zahedan, 98167-43175 Iran
| | - Bita Moudi
- 0000 0004 0612 8339grid.488433.0Infectious Diseases and Tropical Medicine Research Center, Zahedan University of Medical Sciences, Zahedan, Iran ,0000 0004 0612 8339grid.488433.0Department of Histology, School of Medicine, Zahedan University of Medical Sciences, Zahedan, 98167-43175 Iran
| | - Hamidreza Mahmoudzadeh-Sagheb
- 0000 0004 0612 8339grid.488433.0Infectious Diseases and Tropical Medicine Research Center, Zahedan University of Medical Sciences, Zahedan, Iran ,0000 0004 0612 8339grid.488433.0Department of Histology, School of Medicine, Zahedan University of Medical Sciences, Zahedan, 98167-43175 Iran
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Chemokine Receptor 2 ( CXCR2) Gene Variants and Their Association with Periodontal Bacteria in Patients with Chronic Periodontitis. Mediators Inflamm 2019; 2019:2061868. [PMID: 30863202 PMCID: PMC6378799 DOI: 10.1155/2019/2061868] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Accepted: 01/22/2019] [Indexed: 11/18/2022] Open
Abstract
Periodontitis, an inflammatory disease caused by subgingival Gram-negative (G-) bacteria, is linked with loss of the connective tissue and destruction of the alveolar bone. In the regulation of inflammatory response, chemokine receptor 2 (CXCR2), a specific receptor for interleukin-8 and neutrophil chemoattractant, plays an important role. The first aim of this study was to investigate the CXCR2 gene variability in chronic periodontitis (CP) patients and healthy nonperiodontitis controls in the Czech population. The second aim was to find a relation between CXCR2 gene variants and the presence of periodontal bacteria. A total of 500 unrelated subjects participated in this case-control study. 329 CP patients and 171 healthy nonperiodontitis controls were analyzed using polymerase chain reaction techniques for three single-nucleotide polymorphisms (SNPs): +785C/T (rs2230054), +1208T/C (rs1126579), and +1440A/G (rs1126580). A DNA microarray detection kit was used for the investigation of the subgingival bacterial colonization, in a subgroup of CP subjects (N = 162). No significant differences in allele, genotype, haplotype, or haplogenotype frequencies of CXCR2 gene variants between patients with CP and healthy controls (P > 0.05) were determined. Nevertheless, Aggregatibacter actinomycetemcomitans was detected more frequently in men positive for the C allele of the CXCR2 +785C/T polymorphism (61.8% vs. 41.1%, P < 0.05; OR = 2.31, 95% CI = 1.03-5.20) and for the T allele of the CXCR2 +1208C/T variant (61.8% vs. 38.9%, P < 0.05; OR = 2.54, 95% CI = 1.13-5.71). In contrast, no statistically significant associations of CXCR2 variants with seven selected periodontal bacteria were found in women. Although none of the investigated SNPs in the CXCR2 gene was associated with CP, the CXCR2 gene variants can be associated with subgingival colonization of G- bacteria in men with CP in the Czech population.
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Zhang QW, Song JY, Yu JH, Sun MZ, Tang SY, Yang SZ, Cao LJ, Wang HF, Cui LN, Fu XH. Polymorphism of IFN-γ +874T/A associated with production of IFN-γ affects human papillomavirus susceptibility in rural women from Luohe, Henan, China. Onco Targets Ther 2018; 11:4339-4344. [PMID: 30100739 PMCID: PMC6065563 DOI: 10.2147/ott.s161544] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Purpose In this paper, the association between polymorphisms of IFN-γ +874T/A (rs2430561), IFN-γR1 −56 T/C (rs2234711), IFN-γR1 +95 C/T (rs7749390), and IFN-γR1 −611A/G (rs 1327474) and human papillomavirus (HPV) susceptibility was investigated in rural women from Luohe, Henan, China. Patients and methods A total of 520 rural women were enrolled from Luohe, including 260 with HPV infection and mild dysplasia or less and 260 without HPV infection. Single-nucleotide polymorphisms (SNPs) of IFN-γ +874T/A, IFN-γR1 −56 T/C, IFN-γR1 +95 C/T and IFN-γR1 −611A/G were genotyped using TaqMan Pre-Designed SNP Genotyping Assays. Serum IFN-γ levels were measured using Human IFN-γ Quantikine ELISA Kit. Multivariate logistic regression analysis was performed to identify the SNPs associated with HPV susceptibility. Serum IFN-γ levels were compared between different genotypes. Results The polymorphism of IFN-γ +874T/A was associated with HPV susceptibility and +874A carriers had an increased risk. Moreover, the odds ratio was higher in +874 AA carriers than in +874 AT carriers (1.672 vs 2.874). Serum IFN-γ levels were highest in IFN-γ +874 TT carriers, intermediate in AT carriers, and lowest in AA carriers (2.86±1.14 vs 1.57±0.79 vs 0.41±0.22 pg/mL, all P<0.05). Conclusion The polymorphism of IFN-γ +874T/A was associated with HPV susceptibility in rural women from Luohe, Henan, China, and +874A carriers had an increased risk. The possible mechanism was that +874A carriers had a low production of IFN-γ.
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Affiliation(s)
- Qing-Wei Zhang
- Department of Obstetrics and Gynaecology, Luohe Central Hospital, Luohe, 462000, Henan, China
| | - Jia-Yu Song
- Department of Pharmacology, Luohe Medical College, Luohe, 462000, Henan, China,
| | - Jiang-Hua Yu
- Department of Obstetrics and Gynaecology, Luohe Central Hospital, Luohe, 462000, Henan, China
| | - Ming-Zhen Sun
- Department of Pharmacology, Luohe Medical College, Luohe, 462000, Henan, China,
| | - Si-Yuan Tang
- Department of Obstetrics and Gynaecology, Luohe Central Hospital, Luohe, 462000, Henan, China
| | - Shao-Zhe Yang
- Department of Obstetrics and Gynaecology, Luohe Central Hospital, Luohe, 462000, Henan, China
| | - Lei-Jia Cao
- Department of Obstetrics and Gynaecology, Luohe Central Hospital, Luohe, 462000, Henan, China
| | - Hui-Fen Wang
- Department of Obstetrics and Gynaecology, Luohe Central Hospital, Luohe, 462000, Henan, China
| | - Li-Na Cui
- Department of Obstetrics and Gynaecology, Luohe Central Hospital, Luohe, 462000, Henan, China
| | - Xiu-Hong Fu
- Department of Obstetrics and Gynaecology, Luohe Central Hospital, Luohe, 462000, Henan, China
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Kaur G, Grover V, Bhaskar N, Kaur RK, Jain A. Periodontal Infectogenomics. Inflamm Regen 2018; 38:8. [PMID: 29760828 PMCID: PMC5937045 DOI: 10.1186/s41232-018-0065-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Accepted: 03/27/2018] [Indexed: 12/18/2022] Open
Abstract
Periodontal diseases are chronic infectious disease in which the pathogenic bacteria initiate the host immune response leading to the destruction of tooth supporting tissue and eventually result in the tooth loss. It has multifactorial etiological factors including local, systemic, environmental and genetic factors. The effect of genetic factors on periodontal disease is already under extensive research and has explained the role of polymorphisms of immune mediators affecting disease response. The role genetic factors in pathogens colonisation is emerged as a new field of research as "infectogenomics". It is a rapidly evolving and high-priority research area now days. It further elaborates the role of genetic factors in disease pathogenesis and help in the treatment, control and early prevention of infection. The aim of this review is to summarise the contemporary evidence available in the field of periodontal infectogenomics to draw some valuable conclusions to further elaborate its role in disease pathogenesis and its application in the clinical practice. This will open up opportunity for more extensive research in this field.
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Affiliation(s)
- Gurjeet Kaur
- Department of Periodontology, Dr Harvansh Singh Judge Institute of Dental Sciences and Hospital, Panjab University, Sector-25, Chandigarh, India
| | - Vishakha Grover
- Department of Periodontology, Dr Harvansh Singh Judge Institute of Dental Sciences and Hospital, Panjab University, Sector-25, Chandigarh, India
| | - Nandini Bhaskar
- Department of Periodontology, Dr Harvansh Singh Judge Institute of Dental Sciences and Hospital, Panjab University, Sector-25, Chandigarh, India
| | - Rose Kanwaljeet Kaur
- Department of Periodontology, Dr Harvansh Singh Judge Institute of Dental Sciences and Hospital, Panjab University, Sector-25, Chandigarh, India
| | - Ashish Jain
- Department of Periodontology, Dr Harvansh Singh Judge Institute of Dental Sciences and Hospital, Panjab University, Sector-25, Chandigarh, India
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Sheibak N, Heidari Z, Mahmoudzadeh-Sagheb H. Quantitative Parameters of Interdental Gingiva in Chronic Periodontitis Patients with IFN-γ Gene Polymorphism. Prague Med Rep 2017; 118:37-48. [PMID: 28364573 DOI: 10.14712/23362936.2017.4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Abstract
Chronic periodontitis (CP), an infectious disease resulting in inflammation within the periodontal tissue, is the main cause of adult tooth loss. CP is a multi-factorial disorder and the interaction between multiple genetic and environmental factors results in the manifestation of this disease. Recent researches in periodontitis has focused on cytokine gene polymorphisms that play important role in periodontal inflammation, but few studies investigated histological change that occur during CP in the supporting tissue of teeth. The aims of this study were to investigate the association of IFN-γ +874 A/T polymorphisms and quantitative parameters of interdental gingiva in CP patients. The study samples were interdental gingiva biopsies from 60 individuals including 38 patients and 22 healthy subjects. After determination of IFN-γ +874 A/T gene polymorphism by amplification refractory mutation system-polymerase chain reaction (ARMS-PCR), patients were divided in three subgroups: 10 AA, 18 AT and 10 TT. After slides preparation, quantitative parameters were estimated by Cavalieri's point-counting method. Statistical analyses were performed using Mann-Whitney and Kruskal-Wallis test to compare differences between groups. The volume density (Vv) of epithelium, connective tissue and its components were significantly different between the control and CP groups (P<0.05). Statistically significant differences in the Vv of collagenous and non-collagenous matrix of interdental gingiva between AA, AT and TT groups were found (P<0.05). Result of present study shows that IFN-γ +874 A/T is strongly associated with some quantitative parameters of connective tissue constituents of interdental papilla in CP patients.
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Affiliation(s)
- Nadia Sheibak
- Department of Histology, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Zahra Heidari
- Department of Histology, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran. .,Infectious Diseases and Tropical Medicine Research Center, Zahedan University of Medical Sciences, Zahedan, Iran.
| | - Hamidreza Mahmoudzadeh-Sagheb
- Department of Histology, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran.,Infectious Diseases and Tropical Medicine Research Center, Zahedan University of Medical Sciences, Zahedan, Iran
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Shi Q, Cai C, Xu J, Liu J, Liu H, Huo N. Is there an association between IFN-γ +874A/T polymorphism and periodontitis susceptibility?: A meta-analysis. Medicine (Baltimore) 2017; 96:e7288. [PMID: 28640144 PMCID: PMC5484252 DOI: 10.1097/md.0000000000007288] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND Interferon-γ (IFN-γ) is a key proinflammatory cytokine which plays a critical role in the pathogenesis and progression of periodontitis. The single nucleotide polymorphism of +874A/T in human IFN-γ gene can influence the secretion of IFN-γ and affect periodontitis susceptibility. However, the findings of published studies are inconsistent. Therefore, the goal of this meta-analysis is to investigate whether there is an association between IFN-γ +874A/T polymorphism and periodontitis susceptibility. METHODS PubMed and the Cochrane Library were searched for eligible clinical studies. The odds ratio (OR) and 95% confidence interval (CI) of each study were pooled to estimate the strength of association between +874A/T and periodontitis. Subgroup analyses were performed to explore whether particular characteristics of studies were related to the overall results. RESULTS Seven studies and a total of 1252 periodontitis patients and 1622 periodontitis-free control subjects were included. No difference was observed in genotype distribution and allele frequency between periodontitis patients and control (T vs A: OR = 1.01, 95% CI: 0.90-1.13, P = .878; TT vs AA: OR = 1.07, 95% CI: 0.87-1.32, P = .537; AT vs AA: OR = 1.00, 95% CI: 0.81-1.23, P = .996; TT+AT vs AA: OR = 1.00, 95% CI: 0.84-1.19, P = .990; TT vs AA+AT: OR = 1.03, 95% CI: 0.86-1.23, P = .733). Besides, the subgroup analysis based on ethnicity, type of periodontitis, and smoking status failed to identify significant differences in each model, either. CONCLUSIONS The results of this meta-analysis suggest that IFN-γ +874 A/T polymorphism may not contribute to periodontitis susceptibility. High quality and well-designed studies which combine genetic and other environmental risk factors are needed to validate this conclusion in the future.
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Nibali L, Di Iorio A, Onabolu O, Lin GH. Periodontal infectogenomics: systematic review of associations between host genetic variants and subgingival microbial detection. J Clin Periodontol 2016; 43:889-900. [DOI: 10.1111/jcpe.12600] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/15/2016] [Indexed: 12/14/2022]
Affiliation(s)
- Luigi Nibali
- Clinical Oral Research Centre; Institute of Dentistry; Queen Mary University London (QMUL); London UK
| | - Anna Di Iorio
- Library Services; UCL Eastman Dental Institute; London UK
| | | | - Guo-Hao Lin
- Department of Periodontics and Oral Medicine; University of Michigan School of Dentistry; Ann Arbor MI USA
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Heidari Z, Mahmoudzadeh-Sagheb H, Hashemi M, Ansarimoghaddam S, Sheibak N. Estimation of volume density of interdental papilla components in patients with chronic periodontitis and interleukin-6 (-174G/C) gene polymorphisms. Dent Res J (Isfahan) 2016; 13:139-44. [PMID: 27076828 PMCID: PMC4810911 DOI: 10.4103/1735-3327.178199] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Background: The association between interleukin-6 (IL-6) (-174G/C) gene polymorphisms and level of tissue breakdown and periodontal disease progression is unknown. The present study investigated quantitative parameters of interdental papilla in chronic periodontitis (CP) patients with IL-6 (-174G/C) gene polymorphisms. Materials and Methods: Sixty gingival samples were studied. After determination of IL-6 (-174G/C) gene polymorphisms using a tetra-primer amplification refractory mutation system-polymerase chain reaction (T-ARMS-PCR) technique, 45 gingival tissue samples of CP patients (GG and GC+CC genotypes) were considered as case groups. Fifteen control samples were also collected from healthy individuals. After tissue processing, interdental gingival tissues were exhaustively sectioned into 4 μm-thick sections. Ten to thirteen sections were sampled by systematic uniform random sampling and stained with Masson trichrome, and the volume density (Vv) of the gingival components was estimated using Cavalier's point counting method. Statistical analysis was performed by Student t-test to compare differences between groups. The significance level was set at P < 0.05. Results: There were statistically significant differences in the Vv of epithelium, connective tissue, collagenous and non-collagenous matrix, and blood vessels between the control and CP groups (P < 0.0001). There were no statistically significant differences in the Vv of epithelium, connective tissue of gingiva, collagenous and non-collagenous matrix, and blood vessels among GG, GC, and CC genotypes in CP patients (P > 0.05). Conclusion: Results of the current study showed that there was no association between IL-6 (-174G/C) gene polymorphisms and quantitative parameters of interdental papilla in CP patients.
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Affiliation(s)
- Zahra Heidari
- Research Center for Infectious Diseases and Tropical Medicine, Iran; Department of Histology, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Hamidreza Mahmoudzadeh-Sagheb
- Research Center for Infectious Diseases and Tropical Medicine, Iran; Department of Histology, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Mohammad Hashemi
- Cellular and Molecular Research Center, Zahedan University of Medical Sciences, Zahedan, Iran; Department of Clinical Biochemistry, School of Medicine, Zahedan University of Medical Sciences and Health Services, Zahedan, Iran
| | - Somayeh Ansarimoghaddam
- Department of Periodontology, School of Dentistry, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Nadia Sheibak
- Department of Histology, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran
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Association between IFN-γ +874A/T and IFN-γR1 (-611A/G, +189T/G, and +95C/T) Gene Polymorphisms and Chronic Periodontitis in a Sample of Iranian Population. Int J Dent 2016; 2015:375359. [PMID: 26823666 PMCID: PMC4707340 DOI: 10.1155/2015/375359] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2015] [Revised: 12/06/2015] [Accepted: 12/08/2015] [Indexed: 11/17/2022] Open
Abstract
Background. Interferon gamma (IFN-γ) is an immune regulatory cytokine that acts through its receptor and plays important role in progression of inflammatory disease such as chronic periodontitis (CP). The purpose of this study was to determine the differences in the distribution of IFN-γ (+874A/T) and IFN-γR1 (-611A/G, +189T/G, and +95C/T) gene polymorphisms among CP and healthy individuals and to investigate relationships between these polymorphisms and susceptibility to CP. Materials and Methods. 310 individuals were enrolled in the study including 210 CP patients and 100 healthy controls. Single nucleotide polymorphisms at IFN-γ (+874A/T) and IFN-γR1 (-611A/G, +189T/G, and +95C/T) were analyzed by ARMS-PCR and PCR-RFLP methods. Results. The significant difference was found in genotype and allele frequency of IFN-γ (+874A/T) gene polymorphism in chronic periodontitis patients and healthy controls. The distribution of genotypes and allele frequencies for IFN-γR1 (-611A/G, +189T/G, and +95C/T) were similar among the groups and no differences in the frequencies of alleles or genotypes of IFN-γR1 genetic polymorphisms variants between case and control groups were detected. Conclusion. The finding of this study showed that IFN-γ +874A/T gene polymorphism may affect susceptibility to CP, whereas IFN-γR1 genetic polymorphisms at -611A/G, +189T/G, and +95C/T were not associated with this disease.
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14
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Finoti LS, Corbi SCT, Anovazzi G, Teixeira SRL, Capela MV, Tanaka MH, Kim YJ, Orrico SRP, Cirelli JA, Mayer MPA, Scarel-Caminaga RM. Pathogen levels and clinical response to periodontal treatment in patients with Interleukin 8 haplotypes. Pathog Dis 2013; 69:21-28. [PMID: 23821559 DOI: 10.1111/2049-632x.12062] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2012] [Revised: 06/14/2013] [Accepted: 06/15/2013] [Indexed: 11/30/2022] Open
Abstract
The aim of this study was to investigate the effect of non-surgical treatment of periodontitis on the levels of periodontopathogens and clinical parameters in patients with different genetic backgrounds produced by polymorphisms in the Interleukin ( IL8) gene. Thirty patients grouped according to IL8 ATC/TTC or AGT/TTC haplotypes were submitted to non-surgical periodontal treatment. Levels of Porphyromonas gingivalis, Tannerella forsythia, and Treponema denticola were determined in 240 subgingival plaque samples by qPCR. The association between IL8 haplotypes and the levels of periodontopathogens and clinical parameters was investigated by multilevel analysis accounting for the clustering of diseased sites analyzed within patients. It was observed that neither levels of periodontopathogens nor non-surgical treatment was associated with the IL8 haplotype. The clinical parameters after periodontal treatment were similar in diseased and healthy sites, independently of the IL8 haplotype. Nonetheless, in the same period, diseased sites of AGT/TTC patients harbored higher levels of P. gingivalis, T. denticola, T. forsythia, and red complex than those of ATC/TTC patients. However, the non-surgical periodontal therapy decreased the levels of these periodontopathogens and of the tested clinical parameters of diseased sites in both groups. Non-surgical therapy is equally effective in improving clinical parameters and decreasing the levels of periodontopathogens, independent of the genotype groups produced by the IL8 haplotype.
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Affiliation(s)
- Livia S Finoti
- Department of Oral Diagnosis and Surgery, School of Dentistry at Araraquara, UNESP- Universidade Estadual Paulista, Araraquara, SP, Brazil
| | - Sâmia C T Corbi
- Department of Oral Diagnosis and Surgery, School of Dentistry at Araraquara, UNESP- Universidade Estadual Paulista, Araraquara, SP, Brazil
| | - Giovana Anovazzi
- Department of Oral Diagnosis and Surgery, School of Dentistry at Araraquara, UNESP- Universidade Estadual Paulista, Araraquara, SP, Brazil
| | - Silvia R L Teixeira
- Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Marisa V Capela
- Department of Physical Chemistry, Institute of Chemistry at Araraquara, UNESP- Universidade Estadual Paulista, Araraquara, SP, Brazil
| | - Márcia H Tanaka
- Department of Morphology, School of Dentistry at Araraquara, UNESP- Universidade Estadual Paulista, Araraquara, SP, Brazil
| | - Yeon J Kim
- Department of Oral Diagnosis and Surgery, School of Dentistry at Araraquara, UNESP- Universidade Estadual Paulista, Araraquara, SP, Brazil
| | - Silvana R P Orrico
- Department of Oral Diagnosis and Surgery, School of Dentistry at Araraquara, UNESP- Universidade Estadual Paulista, Araraquara, SP, Brazil
| | - Joni A Cirelli
- Department of Oral Diagnosis and Surgery, School of Dentistry at Araraquara, UNESP- Universidade Estadual Paulista, Araraquara, SP, Brazil
| | - Marcia P A Mayer
- Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Raquel M Scarel-Caminaga
- Department of Morphology, School of Dentistry at Araraquara, UNESP- Universidade Estadual Paulista, Araraquara, SP, Brazil
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15
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Abstract
Oral Diseases (2012) Underlying molecular genetic mechanisms of diseases can be deciphered with unbiased strategies using recently developed technologies enabling genome-wide scale investigations. These technologies have been applied in scanning for genetic variations, gene expression profiles, and epigenetic changes for oral and craniofacial diseases. However, these approaches as applied to oral and craniofacial conditions are in the initial stages, and challenges remain to be overcome, including analysis of high throughput data and their interpretation. Here, we review methodology and studies using genome-wide approaches in oral and craniofacial diseases and suggest future directions.
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Affiliation(s)
- H Kim
- National Institute of Nursing Research, National Institutes of Health, Bethesda, MD School of Dentistry, University of Maryland, Baltimore, MD, USA
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