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Talib EQ, Taha GI. Involvement of interlukin-17A (IL-17A) gene polymorphism and interlukin-23 (IL-23) level in the development of peri-implantitis. BDJ Open 2024; 10:12. [PMID: 38413570 PMCID: PMC10899656 DOI: 10.1038/s41405-024-00193-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 01/16/2024] [Accepted: 01/17/2024] [Indexed: 02/29/2024] Open
Abstract
BACKGROUND Dental implantation has been practiced since ancient times and has gone through several stages. Dentists use dental implants to support dental prostheses such as crowns, bridges, dentures, face prostheses, or as an orthodontic anchor. Thus, the purpose of this study is to detect the role of the immune-genetic variation of IL-17A and related inflammatory cytokine (IL-23) in the initiation and progress of peri implantitis. MATERIAL AND METHODS This cross-sectional study included 80 subjects (15 peri-implantitis patients, 35 successful implants, and 30 healthy controls); their mean age was (43.91 ± 11.33) years. Blood samples and Peri-implant sulcus fluid (PISF) were collected from all subjects (patients with peri-implantitis, successful implants, and healthy controls) attending the Department of Oral and Maxillofacial Surgery in the Dental College Teaching Hospital, Baghdad University, Baghdad, Iraq. The blood sample detects gene polymorphisms in interleukin-17A by a polymerase chain reaction (PCR). An enzyme-linked immunosorbent assay (ELISA) was carried out to estimate the Peri-implant sulcus fluid (PISF) levels of interleukin-23. RESULT The current study revealed an obvious significant elevation in the mean level of interleukin-23 in the peri-implantitis patient's group more than its level in the successful implant and control groups (P < 0.05). In addition, the result showed that A/A genotype is associated significantly with peri-implantitis OR (95%confidence interval) =6.9 (1.7121 to 27.4638) folds increase risk of peri-implantitis) (p = 0.0065), while G/A genotype had OR 4.9 (0.9539-24.9394) folds increased risk of peri-implantitis, (p = 0.0572). But it was not statistically significant and G/G genotype had a one-fold increase risk of peri-implantitis. CONCLUSION The increased level of inflammatory cytokine (interleukin-23) might add to the systemic inflammatory burden a predisposing factor, which may lead to impaired osseointegration and subsequent bone loss or implant failure. In addition, IL-17A gene polymorphism may play a role in peri-implant disease susceptibility, especially in persons carrying the rs2275913 A allele at a higher risk of developing peri-implantitits as compared with those carrying the G allele.
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Affiliation(s)
- Ehab Qasim Talib
- Department of Basic Sciences, College of Dentistry, University of Baghdad, Baghdad, Iraq.
| | - Ghada Ibrahim Taha
- Department of Basic Sciences, College of Dentistry, University of Baghdad, Baghdad, Iraq
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Liberalesso VYSW, Azevedo MLV, Malaquias MAS, de Paula CBV, Nagashima S, de Souza DG, Neto PC, Gouveia KO, Biscaro LC, Giamberardino ALG, Gonçalves GT, Kondo TTS, Raboni SM, Weiss I, Machado-Souza C, de Noronha L. The role of IL17 and IL17RA polymorphisms in lethal pandemic acute viral pneumonia (Influenza A virus H1N1 subtype). SURGICAL AND EXPERIMENTAL PATHOLOGY 2023; 6:1. [PMCID: PMC9907201 DOI: 10.1186/s42047-023-00126-0] [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: 02/11/2023] Open
Abstract
Background The cytokines play an essential role in acute inflammatory processes, and the IL-17 may be responsible for ambiguous aspects, and the correlation with genetic polymorphisms could improve the search for this critical biomarker. Thus, this study aimed to evaluate the IL-17A and IL-17RA tissue expression and the polymorphisms that codified these proteins in a population that died of pandemic Influenza A virus H1N1 subtype compared to a non-pandemic Influenza virus population. Methods Necropsy lung samples immunohistochemistry was performed to assess the presence of IL-17A and IL-17RA in the pulmonary tissue. Eight single nucleotide polymorphisms were genotyped using TaqMan® technology. Results The Influenza A H1N1 pandemic group had higher tissue expression of IL-17A, higher neutrophil recruitment and shorter survival time between admission and death. Three single nucleotide polymorphisms conferred risk for pandemic influenza A H1N1, the AA genotype of rs3819025 G/A, the CC genotype of rs2241044 A/C, and the TT genotype of rs 2,241,043 C/T. Conclusions One IL17A polymorphism (rs381905) and two IL17RA polymorphisms (rs2241044 and rs2241043) represented biomarkers of worse prognosis in the population infected with pandemic influenza A H1N1. The greater tissue expression of IL-17A shows a Th17 polarization and highlights the aggressiveness of the pandemic influenza virus with its duality in the protection and pathogenesis of the pulmonary infectious process.
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Affiliation(s)
| | - Marina Luise Viola Azevedo
- grid.412522.20000 0000 8601 0541Postgraduation Program in Health Sciences of School of Medicine, Pontifícia Universidade Católica Do Paraná, Curitiba, Brazil
| | - Mineia Alessandra Scaranello Malaquias
- grid.412522.20000 0000 8601 0541Postgraduation Program in Health Sciences of School of Medicine, Pontifícia Universidade Católica Do Paraná, Curitiba, Brazil
| | - Caroline Busatta Vaz de Paula
- grid.412522.20000 0000 8601 0541Postgraduation Program in Health Sciences of School of Medicine, Pontifícia Universidade Católica Do Paraná, Curitiba, Brazil
| | - Seigo Nagashima
- grid.412522.20000 0000 8601 0541Postgraduation Program in Health Sciences of School of Medicine, Pontifícia Universidade Católica Do Paraná, Curitiba, Brazil
| | - Daiane Gavlik de Souza
- grid.412522.20000 0000 8601 0541Postgraduation Program in Health Sciences of School of Medicine, Pontifícia Universidade Católica Do Paraná, Curitiba, Brazil
| | - Plínio Cézar Neto
- grid.412522.20000 0000 8601 0541Postgraduation Program in Health Sciences of School of Medicine, Pontifícia Universidade Católica Do Paraná, Curitiba, Brazil
| | - Kauana Oliveira Gouveia
- grid.412522.20000 0000 8601 0541Postgraduation Program in Health Sciences of School of Medicine, Pontifícia Universidade Católica Do Paraná, Curitiba, Brazil
| | - Larissa Cristina Biscaro
- grid.412522.20000 0000 8601 0541Postgraduation Program in Health Sciences of School of Medicine, Pontifícia Universidade Católica Do Paraná, Curitiba, Brazil
| | - Ana Luisa Garcia Giamberardino
- grid.412522.20000 0000 8601 0541Postgraduation Program in Health Sciences of School of Medicine, Pontifícia Universidade Católica Do Paraná, Curitiba, Brazil
| | - Gabrielle Tasso Gonçalves
- grid.412522.20000 0000 8601 0541Postgraduation Program in Health Sciences of School of Medicine, Pontifícia Universidade Católica Do Paraná, Curitiba, Brazil
| | - Thais Teles Soares Kondo
- grid.412522.20000 0000 8601 0541Postgraduation Program in Health Sciences of School of Medicine, Pontifícia Universidade Católica Do Paraná, Curitiba, Brazil
| | - Sonia Maria Raboni
- grid.411078.b0000 0004 0502 3690Laboratory of Virology, Hospital de Clínicas, Universidade Federal Do Paraná, Curitiba, Brazil
| | - Isabelle Weiss
- Postgraduation Program in Biotechnology Applied in Health of Children and Adolescent, Faculdades Pequeno Príncipe, Curitiba, Brazil
| | - Cleber Machado-Souza
- Postgraduation Program in Biotechnology Applied in Health of Children and Adolescent, Faculdades Pequeno Príncipe, Curitiba, Brazil
| | - Lucia de Noronha
- grid.412522.20000 0000 8601 0541Postgraduation Program in Health Sciences of School of Medicine, Pontifícia Universidade Católica Do Paraná, Curitiba, Brazil
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Polymorphisms of the IL-17A Gene Influence Milk Production Traits and Somatic Cell Score in Chinese Holstein Cows. Bioengineering (Basel) 2022; 9:bioengineering9090448. [PMID: 36134995 PMCID: PMC9496013 DOI: 10.3390/bioengineering9090448] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 08/28/2022] [Accepted: 08/30/2022] [Indexed: 11/17/2022] Open
Abstract
The cow’s milk production characteristics are a significant economic indicator in the livestock industry. Serum cytokines such as interleukin-17 (IL-17) may be potential indicators for bovine mastitis concerning the milk somatic cell count (SCC) and somatic cell score (SCS). The current study aims to find previously undiscovered single nucleotide polymorphisms in the bovine (IL-17A) gene and further investigates their associations with milk production traits in Chinese Holstein cows. Twenty Chinese Holstein cows were randomly chosen from six farms in Jiangsu Province, China. The DNA was extracted from selected samples of bloods for PCR amplification Sequence analyses were used to find SNPs in the bovine (IL-17A) gene. The discovered five SNPs are g-1578A>G, g-1835G>A, and g-398T>A in the 5′UTR; g3164T>C and g3409G>C in the exon region. The genotyping of Holstein cows (n = 992) was performed based on Sequenom Mass ARRAY and SNP data. The connection between SNPs, milk production variables, and the somatic cell score was investigated using the least-squares method. Based on the results, SNP g-398T>A had a significant linkage disequilibrium with g3164T>C. SNPs were found to have significant (p < 0.05) correlations with the test-day milk yield. In conclusion, IL-17A affects cow’s milk production traits significantly.
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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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ANALYSIS OF SINGLE NUCLEOTIDE POLYMORPHISMS OF GENES IL17A AND TLR2 IN PATIENTS WITH PERIODONTITIS. WORLD OF MEDICINE AND BIOLOGY 2022. [DOI: 10.26724/2079-8334-2022-4-82-139-142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Rimachi Hidalgo MA, Cirelli T, da Silva BR, Nicchio IG, Nepomuceno R, Orrico SRP, Cirelli JA, Theodoro LH, Barros SP, Scarel-Caminaga RM. Polymorphisms and haplotypes in the Interleukin 17 Alfa gene: potential effect of smoking habits in the association with periodontitis and type 2 diabetes mellitus. Mol Biol Rep 2021; 48:1103-1114. [PMID: 33559820 DOI: 10.1007/s11033-021-06172-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2020] [Accepted: 01/19/2021] [Indexed: 11/26/2022]
Abstract
Few studies evaluate interrelationships between periodontitis (P) and Type 2 Diabetes Mellitus (T2DM). The aim of this study is to investigate the genetic susceptibility to periodontitis alone, or concomitant with T2DM (as comorbidities), analyzing single nucleotide polymorphisms (SNPs) in the Interleukin 17 alpha (IL17A) gene, considering the biochemical profile and smoking habits on the subjects' periodontal status. We investigated 879 individuals divided into: T2DM subjects also affected by severe or moderate periodontitis (T2DM-P, n = 199); non-diabetics with severe or moderate periodontitis (PERIODONTITIS, n = 342); and healthy subjects (HEALTHY, n = 338). Subjects underwent complete periodontal examination, history of smoking habits, glycemic and lipid biochemical evaluation. DNA from buccal cells was utilized to genotype the SNPs rs2275913, rs3819024 and rs10484879. The impact of the subjects' biochemical profile was analyzed in their periodontal status. Each SNP was analyzed independently, and as haplotypes, by multiple logistic regressions, adjusted for covariates, and also stratifying the groups by age, sex and smoking habits. Independently of the periodontitis degree, poorly-controlled T2DM subjects showed worse glycemic and lipid profile. Multiple logistic regressions demonstrated that smokers and former-smokers carrying the GG genotype of rs3819024 seemed to have higher risk for T2DM-Periodontitis (OR = 6.33; 95% CI = 1.26-31.77, p = 0.02), and mainly for T2DM alone (OR = 5.11; 95% CI = 1.37-19.06, p = 0.01), than never smokers. We found the potential effect of smoking habits in the association of IL17A-rs3819024-GG with diseased phenotypes. Because the observed wide confidence intervals, further studies enrolling larger populations, and SNPs' functional evaluations are needed to better understand our findings.
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Affiliation(s)
- Marco A Rimachi Hidalgo
- Department of Diagnosis and Surgery, São Paulo State University - UNESP, School of Dentistry at Araraquara, Araraquara, SP, Brazil
- Department of Morphology and Pediatric Clinics, São Paulo State University - UNESP, School of Dentistry at Araraquara, Araraquara, SP, Brazil
| | - Thamiris Cirelli
- Department of Diagnosis and Surgery, São Paulo State University - UNESP, School of Dentistry at Araraquara, Araraquara, SP, Brazil
- Department of Morphology and Pediatric Clinics, São Paulo State University - UNESP, School of Dentistry at Araraquara, Araraquara, SP, Brazil
| | - Bárbara Roque da Silva
- Department of Diagnosis and Surgery, São Paulo State University - UNESP, School of Dentistry at Araraquara, Araraquara, SP, Brazil
- Department of Morphology and Pediatric Clinics, São Paulo State University - UNESP, School of Dentistry at Araraquara, Araraquara, SP, Brazil
| | - Ingra Gagno Nicchio
- Department of Diagnosis and Surgery, São Paulo State University - UNESP, School of Dentistry at Araraquara, Araraquara, SP, Brazil
- Department of Morphology and Pediatric Clinics, São Paulo State University - UNESP, School of Dentistry at Araraquara, Araraquara, SP, Brazil
| | - Rafael Nepomuceno
- Department of Diagnosis and Surgery, São Paulo State University - UNESP, School of Dentistry at Araraquara, Araraquara, SP, Brazil
- Department of Morphology and Pediatric Clinics, São Paulo State University - UNESP, School of Dentistry at Araraquara, Araraquara, SP, Brazil
| | - Silvana R P Orrico
- Department of Diagnosis and Surgery, São Paulo State University - UNESP, School of Dentistry at Araraquara, Araraquara, SP, Brazil
- Advanced Research Center in Medicine, Union of the Colleges of the Great Lakes (UNILAGO), São José do Rio Preto, SP, 15030-070, Brazil
| | - Joni A Cirelli
- Department of Diagnosis and Surgery, São Paulo State University - UNESP, School of Dentistry at Araraquara, Araraquara, SP, Brazil
| | - Letícia Helena Theodoro
- Department of Diagnosis and Surgery, São Paulo State University - UNESP, School of Dentistry at Araçatuba, Araçatuba, SP, Brazil
| | - Silvana P Barros
- Department of Periodontology, University of North Carolina at Chapel Hill - UNC, School of Dentistry, Chapel Hill, NC, USA
| | - Raquel M Scarel-Caminaga
- Department of Morphology and Pediatric Clinics, São Paulo State University - UNESP, School of Dentistry at Araraquara, Araraquara, SP, Brazil.
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Mazurek-Mochol M, Kozak M, Malinowski D, Safranow K, Pawlik A. IL-17F Gene rs763780 and IL-17A rs2275913 Polymorphisms in Patients with Periodontitis. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:1081. [PMID: 33530501 PMCID: PMC7908462 DOI: 10.3390/ijerph18031081] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 01/17/2021] [Accepted: 01/22/2021] [Indexed: 12/25/2022]
Abstract
Background: Periodontitis (PD) is a chronic inflammatory disease that can eventually lead to tooth loss. Genetic and environmental factors such as smoking are involved in the pathogenesis of PD. The development of PD is potentiated by various pathogens that induce an immune response leading to the production of cytokines, such as interleukin (IL)-17. The synthesis of IL-17 is influenced genetically. The polymorphisms in IL-17 gene may affect the synthesis of IL-17. The aim of this study was to examine the association between the IL-17F rs763780 and IL-17A rs2275913 polymorphisms and PD in non-smoking and smoking patients to check if these polymorphisms could be a risk factor for PD. Methods: The study enrolled 200 patients with PD (130 non-smokers and 70 smokers) and 160 control subjects (126 non-smokers and 34 smokers). Periodontitis was diagnosed on the basis of 2017 World Workshop on the Classification of Periodontal and Peri-Implant Diseases and Conditions. All samples were genotyped using allelic discrimination assays with TaqMan® probes on a Real-Time PCR Detection System. Results: There were no statistically significant differences in the distribution of the IL-17F rs763780 and IL-17A rs2275913 genotypes and alleles between patients with PD and control subjects, between smoking patients with PD and smoking control subjects, and between non-smoking patients with PD and non-smoking control subjects. Conclusions: The results of this study suggest a lack of statistically significant associations between IL-17F rs763780 and IL-17A rs2275913 polymorphisms and PD in Polish population.
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Affiliation(s)
| | - Małgorzata Kozak
- Department of Prosthetics, Pomeranian Medical University, 70-111 Szczecin, Poland;
| | - Damian Malinowski
- Department of Pharmacology, Pomeranian Medical University, 70-111 Szczecin, Poland;
| | - Krzysztof Safranow
- Department of Biochemistry and Medical Chemistry, Pomeranian Medical University, 70-111 Szczecin, Poland;
| | - Andrzej Pawlik
- Department of Physiology, Pomeranian Medical University, 70-111 Szczecin, Poland
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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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Andrade JMDA, de Oliveira CBS, Meurer YDSR, Santana JE, de Almeida YGB, Vilela Dos Santos P, de Souza DMS, Costa GDP, Talvani A, Palomino GM, Freitas JCDOC, de Andrade-Neto VF. Genetic polymorphism in IL17RA induces susceptibility to Toxoplasma gondii infection in Brazilian pregnant women. Acta Trop 2020; 211:105594. [PMID: 32598917 DOI: 10.1016/j.actatropica.2020.105594] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Revised: 06/21/2020] [Accepted: 06/21/2020] [Indexed: 12/13/2022]
Abstract
Congenital toxoplasmosis is a parasitic disease caused by Toxoplasma gondii, an obligate intracellular parasite which can cause fetal death/abortion and can induce damage in the brain and eyes of the infected babies. The environmental and genetic factors associated with T. gondii and the maternal immune response, drive part of the pathogenesis of congenital toxoplasmosis. Thus, in this study, we aimed to investigate the allelic and genotypic frequencies of specific single nucleotide polymorphisms (SNPs) in the IL17A and IL17RA genes, as well as the production of IL-17A, IL-33, and CCL2 in pregnant women, from the State of Rio Grande do Norte, Brazil, further relating these along with the clinical parameters, to the toxoplasmosis infection. Through PCR-RFLP techniques, two SNPs implicated in Th17 immune response, IL17A rs2275913 (G> A) and IL17RA rs4819554 (A> G) modulation were evaluated in pregnant women, either infected or not infected by T. gondii. These women were also evaluated in terms of plasma release of CCL2, IL-33, and IL-17A which relate to hypertension, number of abortions, and ethnic pattern. The results showed that the G-allele of the SNP rs2275913 (IL17A) appeared to be protective in this population, while the rs4819554 (IL17RA) SNP G allele was associated with greater susceptibility to T. gondii infection [ρ value = 0.025; OR = 2.815 (1.118-7.089); CI = 95%]. None of the cytokines had any influence on the analyzed parameters (abortion and hypertension). In conclusion, our data suggest an immunogenic evidence of susceptibility to T. gondii infection driven by the rs4819554 (IL17RA) SNP G allele in Brazilian pregnant women. Further studies are needed to reinforce this trial marker in populations from distinct geographical areas as well as to confirm the protective pattern related to the G-allele of the SNP rs2275913 (IL17A) in pregnant women.
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Affiliation(s)
- Joelma Maria de Araujo Andrade
- Laboratory of Malaria and Toxoplasmosis Biology/LABMAT, Department of Microbiology and Parasitology, Bioscience Center, Federal University of the Rio Grande do Norte. Natal, Rio Grande do Norte, Brazil; Postgraduate Program of Biological Science, Bioscience Center, Federal University of the Rio Grande do Norte. Natal, Rio Grande do Norte, Brazil
| | - Claudio Bruno Silva de Oliveira
- Laboratory of Malaria and Toxoplasmosis Biology/LABMAT, Department of Microbiology and Parasitology, Bioscience Center, Federal University of the Rio Grande do Norte. Natal, Rio Grande do Norte, Brazil
| | | | | | | | - Priscilla Vilela Dos Santos
- Laboratory of Immunobiology of Inflammation, DECBI/ICEB and Post-graduate Program of Health and Nutrition, Federal University of Ouro Preto, Minas Gerais, Brazil
| | - Débora Maria Soares de Souza
- Laboratory of Immunobiology of Inflammation, DECBI/ICEB and Post-graduate Program of Health and Nutrition, Federal University of Ouro Preto, Minas Gerais, Brazil
| | - Guilherme de Paula Costa
- Laboratory of Immunobiology of Inflammation, DECBI/ICEB and Post-graduate Program of Health and Nutrition, Federal University of Ouro Preto, Minas Gerais, Brazil
| | - André Talvani
- Laboratory of Immunobiology of Inflammation, DECBI/ICEB and Post-graduate Program of Health and Nutrition, Federal University of Ouro Preto, Minas Gerais, Brazil
| | - Gustavo Martelli Palomino
- Department of Clinical Analysis, School of Pharmacy, Federal University of the Rio Grande do Norte. Natal, Rio Grande do Norte, Brazil
| | | | - Valter Ferreira de Andrade-Neto
- Laboratory of Malaria and Toxoplasmosis Biology/LABMAT, Department of Microbiology and Parasitology, Bioscience Center, Federal University of the Rio Grande do Norte. Natal, Rio Grande do Norte, Brazil
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Borilova Linhartova P, Danek Z, Deissova T, Hromcik F, Lipovy B, Szaraz D, Janos J, Fassmann A, Bartova J, Drizhal I, Izakovicova Holla L. Interleukin Gene Variability and Periodontal Bacteria in Patients with Generalized Aggressive Form of Periodontitis. Int J Mol Sci 2020; 21:ijms21134728. [PMID: 32630798 PMCID: PMC7370291 DOI: 10.3390/ijms21134728] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 06/26/2020] [Accepted: 06/28/2020] [Indexed: 02/07/2023] Open
Abstract
Host genetic predispositions to dysregulated immune response can influence the development of the aggressive form of periodontitis (AgP) through susceptibility to oral dysbiosis and subsequent host-microbe interaction. This case-control study aimed to perform a multilocus analysis of functional variants in selected interleukin (IL) genes in patients with the generalized form of AgP in a homogenous population. Twelve polymorphisms in IL-1 gene cluster, IL-6 and its receptor, IL-10, IL-17A, and IL-18 were determined in 91 AgP patients and 210 controls. Analysis of seven selected periodontal bacteria in subgingival sulci/pockets was performed with a commercial DNA-microarray kit in a subgroup of 76 individuals. The pilot in vitro study included stimulation of peripheral blood monocytes (PBMC) from 20 individuals with periodontal bacteria and measurement of IL-10 levels using the Luminex method. Only the unctional polymorphism IL-10 −1087 A/G (rs1800896) and specific IL-10 haplotypes were associated with the development of the disease (p < 0.05, Pcorr > 0.05). Four bacterial species occurred more frequently in AgP than in controls (p < 0.01, Pcorr < 0.05). Elevated IL-10 levels were found in AgP patients, carriers of IL-10 −1087GG genotype, and PBMCs stimulated by periodontal bacteria (p < 0.05, Pcorr > 0.05). We therefore conclude that a combination of genetic predisposition to the altered expression of IL-10 and the presence of specific periodontal bacteria may contribute to Th1/Th2 balance disruption and AgP development.
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Affiliation(s)
- Petra Borilova Linhartova
- Clinic of Stomatology, Faculty of Medicine, Masaryk University, Pekarska 664/53, 60200 Brno, Czech Republic; (P.B.L.); (F.H.); (J.J.); (L.I.H.)
- Department of Pathophysiology, Faculty of Medicine, Masaryk University, Kamenice 5, 62500 Brno, Czech Republic; (T.D.); (B.L.)
- Clinic of Maxillofacial Surgery, University Hospital Brno, Jihlavska 20, 62500 Brno, Czech Republic;
| | - Zdenek Danek
- Department of Pathophysiology, Faculty of Medicine, Masaryk University, Kamenice 5, 62500 Brno, Czech Republic; (T.D.); (B.L.)
- Clinic of Maxillofacial Surgery, University Hospital Brno, Jihlavska 20, 62500 Brno, Czech Republic;
- Clinic of Maxillofacial Surgery, Faculty of Medicine, Masaryk University, Jihlavska 20, 62500 Brno, Czech Republic
- Correspondence: ; Tel.: +420-532-232-484
| | - Tereza Deissova
- Department of Pathophysiology, Faculty of Medicine, Masaryk University, Kamenice 5, 62500 Brno, Czech Republic; (T.D.); (B.L.)
| | - Filip Hromcik
- Clinic of Stomatology, Faculty of Medicine, Masaryk University, Pekarska 664/53, 60200 Brno, Czech Republic; (P.B.L.); (F.H.); (J.J.); (L.I.H.)
- Clinic of Stomatology, St. Anne’s University Hospital, Pekarska 664/53, 60200 Brno, Czech Republic;
| | - Bretislav Lipovy
- Department of Pathophysiology, Faculty of Medicine, Masaryk University, Kamenice 5, 62500 Brno, Czech Republic; (T.D.); (B.L.)
- Department of Burns and Plastic Surgery, Faculty of Medicine, Masaryk University, Jihlavska 20, 62500 Brno, Czech Republic
- Department of Burns and Plastic Surgery, University Hospital Brno, Jihlavska 20, 62500 Brno, Czech Republic
| | - David Szaraz
- Clinic of Maxillofacial Surgery, University Hospital Brno, Jihlavska 20, 62500 Brno, Czech Republic;
- Clinic of Maxillofacial Surgery, Faculty of Medicine, Masaryk University, Jihlavska 20, 62500 Brno, Czech Republic
| | - Julius Janos
- Clinic of Stomatology, Faculty of Medicine, Masaryk University, Pekarska 664/53, 60200 Brno, Czech Republic; (P.B.L.); (F.H.); (J.J.); (L.I.H.)
| | - Antonin Fassmann
- Clinic of Stomatology, St. Anne’s University Hospital, Pekarska 664/53, 60200 Brno, Czech Republic;
| | - Jirina Bartova
- Institute of Clinical and Experimental Dental Medicine, First Faculty of Medicine, Charles University, Karlovo nam. 554/32, 12808 Prague, Czech Republic;
- Institute of Clinical and Experimental Dental Medicine, General University Hospital, Karlovo nam. 554/32, 12808 Prague, Czech Republic
| | - Ivo Drizhal
- Department of Dentistry, Faculty of Medicine in Hradec Kralove, Charles University, Simkova 870, 50003 Hradec Kralove, Czech Republic;
| | - Lydie Izakovicova Holla
- Clinic of Stomatology, Faculty of Medicine, Masaryk University, Pekarska 664/53, 60200 Brno, Czech Republic; (P.B.L.); (F.H.); (J.J.); (L.I.H.)
- Department of Pathophysiology, Faculty of Medicine, Masaryk University, Kamenice 5, 62500 Brno, Czech Republic; (T.D.); (B.L.)
- Clinic of Stomatology, St. Anne’s University Hospital, Pekarska 664/53, 60200 Brno, Czech Republic;
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Sasikumar PK, Varghese SS, Kumaran T, Devi SS. Meta-Analysis of Risk Association between Interleukin-17A Gene Polymorphism and Chronic Periodontitis. Contemp Clin Dent 2020; 11:3-9. [PMID: 33110301 PMCID: PMC7580746 DOI: 10.4103/ccd.ccd_448_19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 02/28/2020] [Accepted: 04/17/2020] [Indexed: 11/25/2022] Open
Abstract
The association of genetic polymorphisms with periodontitis has been studied extensively. The interleukin-7 (IL-17) is a group of cytokines, which comprises six different molecules (IL-17A, B, C, D, E, and F). Among this, IL-17A is the most commonly understood cytokine, and its polymorphism plays a critical role in inflammatory diseases and periodontal inflammation. The present study was aimed at pooling the data available for meta-analysis and to evaluate whether IL-17A (rs2275913) polymorphism is associated with the susceptibility of chronic periodontitis.
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Affiliation(s)
- P. K. Sasikumar
- Department of Periodontics, JKKN Dental College, Namakkal, Tamil Nadu, India
| | - Sheeja S Varghese
- Department of Periodontics, Saveetha Dental College, Chennai, Tamil Nadu, India
| | - Thanga Kumaran
- Department of Periodontics, JKKNDCH, Thiruchengodu, Tamil Nadu, India
| | - Sakthi Saranya Devi
- Department of Oral Medicine Andradiology, KSR Institute of Dental Science and Research, Thiruchengodu, Tamil Nadu, India
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12
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Farmohammadi A, Tavangar A, Ehteram M, Karimian M. Association of A-197G polymorphism in interleukin-17 gene with chronic periodontitis: Evidence from six case-control studies with a computational biology approach. ACTA ACUST UNITED AC 2019; 10:e12424. [PMID: 31231967 DOI: 10.1111/jicd.12424] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Revised: 03/01/2019] [Accepted: 04/26/2019] [Indexed: 12/19/2022]
Abstract
AIM The aim of the present study was to evaluate the association of interleukin-17 (IL-17) A-197G gene polymorphism with chronic periodontitis (CP) in a case-control study, a meta-analysis, and an in silico approach. METHODS In the case-control study, 122 cases with CP and 126 healthy controls were recruited; IL-17 A-197G genotyping was performed by polymerase chain reaction-restriction fragment length polymorphism. In the meta-analysis, comprehensive literature retrieval was performed on valid databases to identify relevant studies. Bioinformatics tools were employed to investigate the effects of A-197G transition on the promoter region of IL-17. RESULTS Our case-control study revealed a significant association between IL-17 A-197G transition and CP. The overall meta-analysis revealed significant associations between the IL-17 A-197G polymorphism and CP risk in homozygote co-dominant and recessive models. The stratified analysis also showed a statistically significant association between the mentioned transition and CP risk in the Caucasian population. The in silico analysis revealed that the A-197G polymorphism could make changes in protein-binding sites of the IL-17 promoter region. CONCLUSIONS Our study supports that IL-17 A-197G transition could be a genetic risk factor for CP. However, further studies with a larger sample size among different ethnicities are required to obtain a more accurate conclusion.
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Affiliation(s)
- Amir Farmohammadi
- Department of Oral and Maxillofacial Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Atefeh Tavangar
- Department of Oral and Maxillofacial Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mohammad Ehteram
- Anatomical Sciences Research Center, Kashan University of Medical Sciences, Kashan, Iran
| | - Mohammad Karimian
- Anatomical Sciences Research Center, Kashan University of Medical Sciences, Kashan, Iran
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13
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IL-13 -1112 polymorphism and periodontitis susceptibility: a meta-analysis. BMC Oral Health 2018; 18:21. [PMID: 29415708 PMCID: PMC5803991 DOI: 10.1186/s12903-018-0481-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2017] [Accepted: 01/29/2018] [Indexed: 01/13/2023] Open
Abstract
Background Several studies have examined the association between the IL-13 -1112C/T polymorphism and the risk of periodontitis. However, these studies have reached different conclusions. The aim of the current study was to investigate the link between this IL-13 -1112 polymorphism and susceptibility to periodontitis. Methods We utilized electronic databases, including the CNKI (China National Knowledge Infrastructure), Wanfang, PubMed, Embase, and Cochrane Library databases, to manually search for relevant research published through November 30, 2016. The Chinese and English terms used to search the literature included “periodontitis”, “periodontal disease”, “IL 13”, “IL-13”, and “interleukin-13”. In accordance with our inclusion criteria, we selected studies that involved case-control trials. All of these case-control trials described their objectives, design and specific statistical methods. For all included studies, odds ratios (ORs) and 95% confidence intervals (95% CIs) were provided or could be calculated from the study data. The quality of the included literature was evaluated using the Newcastle-Ottawa scale (NOS). STATA 12.0 was used to calculate the sizes of the combined effects and conduct a sensitivity analysis of the results. Results Our meta-analysis included 4 articles representing 5 case-control studies with a total of 710 cases and 671 control subjects. The meta-analysis results indicated that the CC vs TT model, CT vs TT model and TT vs CT + CC model (CC VS TT: OR = 0.615, 95% CI = 0.395–0.957; CT vs TT: OR = 0.518, 95% CI = 0.323–0.830; and TT vs CT + CC: OR = 1.739, 95% CI = 1.130–2.676) were significant in five IL-13 -1112 gene polymorphism and periodontitis susceptibility models. Subgroup analysis indicated that the CC vs TT, CT vs TT and TT vs CT + CC models were significant in the chronic periodontitis (CP) group, whereas no significant differences were found in the five aggressive periodontitis (AgP) group models. The sensitivity analysis showed that dropping any single study did not affect the pooled analysis results. Conclusion The IL-13 -1112 polymorphism may be associated with susceptibility to periodontitis. The IL-13 -1112 gene polymorphism may be associated with susceptibility to CP but not to AgP. Thus, large-scale, multi-ethnic case-control trials are still warranted.
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Vahabi S, Nazemisalman B, Hosseinpour S, Salavitabar S, Aziz A. Interleukin-2, -16, and -17 gene polymorphisms in Iranian patients with chronic periodontitis. ACTA ACUST UNITED AC 2018; 9:e12319. [DOI: 10.1111/jicd.12319] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2017] [Accepted: 11/24/2017] [Indexed: 01/13/2023]
Affiliation(s)
- Surena Vahabi
- Department of Periodontics; Shahid Beheshti University of Medical Sciences; Tehran Iran
| | | | - Sepanta Hosseinpour
- School of Advanced Technologies in Medicine; Shahid Beheshti University of Medical Sciences; Tehran Iran
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15
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Chamoun MN, Blumenthal A, Sullivan MJ, Schembri MA, Ulett GC. Bacterial pathogenesis and interleukin-17: interconnecting mechanisms of immune regulation, host genetics, and microbial virulence that influence severity of infection. Crit Rev Microbiol 2018; 44:465-486. [PMID: 29345518 DOI: 10.1080/1040841x.2018.1426556] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Interleukin-17 (IL-17) is a pro-inflammatory cytokine involved in the control of many different disorders, including autoimmune, oncogenic, and diverse infectious diseases. In the context of infectious diseases, IL-17 protects the host against various classes of microorganisms but, intriguingly, can also exacerbate the severity of some infections. The regulation of IL-17 expression stems, in part, from the activity of Interleukin-23 (IL-23), which drives the maturation of different classes of IL-17-producing cells that can alter the course of infection. In this review, we analyze IL-17/IL-23 signalling in bacterial infection, and examine the interconnecting mechanisms that link immune regulation, host genetics, and microbial virulence in the context of bacterial pathogenesis. We consider the roles of IL-17 in both acute and chronic bacterial infections, with a focus on mouse models of human bacterial disease that involve infection of mucosal surfaces in the lungs, urogenital, and gastrointestinal tracts. Polymorphisms in IL-17-encoding genes in humans, which have been associated with heightened host susceptibility to some bacterial pathogens, are discussed. Finally, we examine the implications of IL-17 biology in infectious diseases for the development of novel therapeutic strategies targeted at preventing bacterial infection.
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Affiliation(s)
- Michelle N Chamoun
- a School of Medical Science, and Menzies Health Institute Queensland , Griffith University , Southport , Australia
| | - Antje Blumenthal
- b The University of Queensland Diamantina Institute, Translational Research Institute , Brisbane , Australia
| | - Matthew J Sullivan
- a School of Medical Science, and Menzies Health Institute Queensland , Griffith University , Southport , Australia
| | - Mark A Schembri
- c School of Chemistry and Molecular Biosciences, and Australian Infectious Disease Research Centre , The University of Queensland , Brisbane , Australia
| | - Glen C Ulett
- a School of Medical Science, and Menzies Health Institute Queensland , Griffith University , Southport , Australia
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Polymorphisms in interleukins 17A and 17F genes and periodontitis: results from a meta-analysis. Mol Biol Rep 2017; 44:443-453. [DOI: 10.1007/s11033-017-4128-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2016] [Accepted: 09/19/2017] [Indexed: 12/13/2022]
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17
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Corrêa JD, Calderaro DC, Ferreira GA, Mendonça SMS, Fernandes GR, Xiao E, Teixeira AL, Leys EJ, Graves DT, Silva TA. Subgingival microbiota dysbiosis in systemic lupus erythematosus: association with periodontal status. MICROBIOME 2017; 5:34. [PMID: 28320468 PMCID: PMC5359961 DOI: 10.1186/s40168-017-0252-z] [Citation(s) in RCA: 112] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2016] [Accepted: 03/07/2017] [Indexed: 05/05/2023]
Abstract
BACKGROUND Periodontitis results from the interaction between a subgingival biofilm and host immune response. Changes in biofilm composition are thought to disrupt homeostasis between the host and subgingival bacteria resulting in periodontal damage. Chronic systemic inflammatory disorders have been shown to affect the subgingival microbiota and clinical periodontal status. However, this relationship has not been examined in subjects with systemic lupus erythematosus (SLE). The objective of our study was to investigate the influence of SLE on the subgingival microbiota and its connection with periodontal disease and SLE activity. METHODS We evaluated 52 patients with SLE compared to 52 subjects without SLE (control group). Subjects were classified as without periodontitis and with periodontitis. Oral microbiota composition was assessed by amplifying the V4 region of 16S rRNA gene from subgingival dental plaque DNA extracts. These amplicons were examined by Illumina MiSeq sequencing. RESULTS SLE patients exhibited higher prevalence of periodontitis which occurred at a younger age compared to subjects of the control group. More severe forms of periodontitis were found in SLE subjects that had higher bacterial loads and decreased microbial diversity. Bacterial species frequently detected in periodontal disease were observed in higher proportions in SLE patients, even in periodontal healthy sites such as Fretibacterium, Prevotella nigrescens, and Selenomonas. Changes in the oral microbiota were linked to increased local inflammation, as demonstrated by higher concentrations of IL-6, IL-17, and IL-33 in SLE patients with periodontitis. CONCLUSIONS SLE is associated with differences in the composition of the microbiota, independently of periodontal status.
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Affiliation(s)
- Jôice Dias Corrêa
- Faculty of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais Brazil
| | | | | | | | - Gabriel R. Fernandes
- René Rachou Research Center, Oswaldo Cruz Foundation, Belo Horizonte, Minas Gerais Brazil
| | - E. Xiao
- Penn Dental School, University of Pennsylvania, Philadelphia, PA USA
| | - Antônio Lúcio Teixeira
- University Hospital, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais Brazil
| | - Eugene J. Leys
- College of Dentistry, The Ohio State University, Columbus, OH USA
| | - Dana T. Graves
- Penn Dental School, University of Pennsylvania, Philadelphia, PA USA
| | - Tarcília Aparecida Silva
- Faculty of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais Brazil
- Departamento de Patologia e Cirurgia Odontológica, Faculdade de Odontologia, Universidade Federal de Minas Gerais, Av. Antônio Carlos 6627, CEP 31.270-901 Belo Horizonte, Minas Gerais Brazil
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Okada K, Fujimura T, Kikuchi T, Aino M, Kamiya Y, Izawa A, Iwamura Y, Goto H, Okabe I, Miyake E, Hasegawa Y, Mogi M, Mitani A. Effect of interleukin (IL)-35 on IL-17 expression and production by human CD4 + T cells. PeerJ 2017; 5:e2999. [PMID: 28229025 PMCID: PMC5314955 DOI: 10.7717/peerj.2999] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2016] [Accepted: 01/17/2017] [Indexed: 12/13/2022] Open
Abstract
Background Interleukin (IL)-17 produced by mainly T helper 17 (Th17) cells may play an important destructive role in chronic periodontitis (CP). Thus, anti-inflammatory cytokines, such as IL-35, might have a beneficial effect in periodontitis by inhibiting differentiation of Th17 cells. Th17 differentiation is regulated by the retinoic acid receptor-related orphan receptor (ROR) α (encoded by RORA) and RORγt (encoded by RORC). However, the role of IL-35 in periodontitis is not clear and the effect of IL-35 on the function of Th17 cells is still incompletely understood. Therefore, we investigated the effects of IL-35 on Th17 cells. Methods Peripheral blood mononuclear cells (PBMCs) were sampled from three healthy volunteers and three CP patients and were analyzed by flow cytometry for T cell population. Th17 cells differentiated by a cytokine cocktail (recombinant transforming growth factor-β, rIL-6, rIL-1β, anti-interferon (IFN)-γ, anti-IL-2 and anti-IL-4) from PBMCs were cultured with or without rIL-35. IL17A (which usually refers to IL-17), RORA and RORCmRNA expression was analyzed by quantitative polymerase chain reaction, and IL-17A production was determined by enzyme-linked immunosorbent assay. Results The proportion of IL-17A+CD4+ slightly increased in CP patients compared with healthy controls, however, there were no significant differences in the percentage of IL-17A+CD4+ as well as IFN-γ+CD4+ and Foxp3+CD4+ T cells between healthy controls and CP patients. IL17A, RORA and RORC mRNA expression was significantly increased in Th17 cells induced by the cytokine cocktail, and the induction was significantly inhibited by addition of rIL-35 (1 ng/mL). IL-17A production in Th17 cells was significantly inhibited by rIL-35 addition (1 ng/mL). Discussion The present study suggests that IL-35 could directly suppress IL-17 expression via RORα and RORγt inhibition and might play an important role in inflammatory diseases such as periodontitis.
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Affiliation(s)
- Kosuke Okada
- Department of Periodontology, School of Dentistry, Aichi Gakuin University , Nagoya , Aichi , Japan
| | - Takeki Fujimura
- Department of Periodontology, School of Dentistry, Aichi Gakuin University , Nagoya , Aichi , Japan
| | - Takeshi Kikuchi
- Department of Periodontology, School of Dentistry, Aichi Gakuin University , Nagoya , Aichi , Japan
| | - Makoto Aino
- Department of Periodontology, School of Dentistry, Aichi Gakuin University , Nagoya , Aichi , Japan
| | - Yosuke Kamiya
- Department of Periodontology, School of Dentistry, Aichi Gakuin University , Nagoya , Aichi , Japan
| | - Ario Izawa
- Department of Periodontology, School of Dentistry, Aichi Gakuin University , Nagoya , Aichi , Japan
| | - Yuki Iwamura
- Department of Periodontology, School of Dentistry, Aichi Gakuin University , Nagoya , Aichi , Japan
| | - Hisashi Goto
- Department of Periodontology, School of Dentistry, Aichi Gakuin University , Nagoya , Aichi , Japan
| | - Iichiro Okabe
- Department of Periodontology, School of Dentistry, Aichi Gakuin University , Nagoya , Aichi , Japan
| | - Eriko Miyake
- Department of Periodontology, School of Dentistry, Aichi Gakuin University , Nagoya , Aichi , Japan
| | - Yoshiaki Hasegawa
- Department of Microbiology, School of Dentistry, Aichi Gakuin University , Nagoya , Aichi , Japan
| | - Makio Mogi
- Department of Integrative Education of Pharmacy, School of Pharmacy, Aichi Gakuin University , Nagoya , Aichi , Japan
| | - Akio Mitani
- Department of Periodontology, School of Dentistry, Aichi Gakuin University , Nagoya , Aichi , Japan
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Eskandari-Nasab E, Moghadampour M, Tahmasebi A. Meta-Analysis of Risk Association Between Interleukin-17A and F Gene Polymorphisms and Inflammatory Diseases. J Interferon Cytokine Res 2017; 37:165-174. [PMID: 28186427 DOI: 10.1089/jir.2016.0088] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
This meta-analysis examined the relationship between IL-17A (rs2275913) and IL17F (rs763780 T/C) gene polymorphisms and the risk of inflammatory diseases, including periodontitis, rheumatoid arthritis (RA), and inflammatory bowel disease. PubMed, MEDLINE, EMBASE, Web of Science, and Elsevier Science Direct were searched, and odds ratios (ORs) with 95% confidence interval (CI) were calculated to estimate the strength of the association. A total of 25 studies comprising 7,474 cases and 10,628 controls were included. Significant associations were found between inflammatory diseases and IL-17A rs2275913 A versus G allele (OR = 1.197, P = 0.033) and the GA versus GG genotype in the codominant model (OR = 1.406, P = 0.036). Our findings suggested that individuals who carry the rs2275913 A allele or GA genotype have a 20% or 41%-increased risk of inflammatory diseases compared with subjects with the G allele or GG genotype, respectively. With respect to IL-17F rs763780, the C versus T allele (OR = 1.94; P = 0.040), the TC versus TT (OR = 1.39; P = 0.041), the CC versus TT (OR = 2.71; P = 0.003), as well as the TC + CC versus TT genotype (OR = 1.83; P = 0.032) were risk factors for RA. In summary, our pooled analysis indicated that the IL-17A (rs2275913) and IL17F (rs763780 T/C) increased the RA risk.
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Affiliation(s)
- Ebrahim Eskandari-Nasab
- 1 Genetic of Non-Communicable Disease Research Center, Zahedan University of Medical Sciences , Zahedan, Iran .,2 Department of Clinical Biochemistry, School of Medicine, Zahedan University of Medical Sciences , Zahedan, Iran
| | - Mehdi Moghadampour
- 3 Department of Microbiology, School of Medicine, Isfahan University of Medical Sciences , Isfahan, Iran
| | - Arezoo Tahmasebi
- 4 Department of Statistics, School of Science, Amir Kabir University of Technology , Tehran, Iran
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20
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The effect of periodontal scaling and root polishing on serum IL-17E concentrations and the IL-17A:IL-17E ratio. Clin Oral Investig 2016; 20:2529-2537. [DOI: 10.1007/s00784-016-1749-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2015] [Accepted: 02/10/2016] [Indexed: 01/15/2023]
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21
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Interleukin-17A Gene Variability in Patients with Type 1 Diabetes Mellitus and Chronic Periodontitis: Its Correlation with IL-17 Levels and the Occurrence of Periodontopathic Bacteria. Mediators Inflamm 2016; 2016:2979846. [PMID: 26924897 PMCID: PMC4748108 DOI: 10.1155/2016/2979846] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2015] [Revised: 12/30/2015] [Accepted: 01/03/2016] [Indexed: 01/10/2023] Open
Abstract
Interleukin-17 contributes to the pathogenesis of type 1 diabetes mellitus (T1DM) and chronic periodontitis (CP). We analyzed IL-17A -197A/G and IL-17F +7488C/T polymorphisms in T1DM and CP and determined their associations with IL-17 production and occurrence of periopathogens. Totally 154 controls, 125 T1DM, and 244 CP patients were genotyped using 5' nuclease TaqMan(®) assays. Bacterial colonization was investigated by a DNA-microarray kit. Production of IL-17 after in vitro stimulation of mononuclear cells by mitogens and bacteria was examined by the Luminex system. Although no differences in the allele/genotype frequencies between patients with CP and T1DM + CP were found, the IL-17A -197 A allele increased the risk of T1DM (P < 0.05). Levels of HbA1c were significantly elevated in carriers of the A allele in T1DM patients (P < 0.05). Production of IL-17 by mononuclear cells of CP patients (unstimulated/stimulated by Porphyromonas gingivalis) was associated with IL-17A A allele (P < 0.05). IL-17A polymorphism increased the number of Tannerella forsythia and Treponema denticola in patients with CP and T1DM + CP, respectively (P < 0.05). IL-17A gene variability may influence control of T1DM and the "red complex" bacteria occurrence in patients with CP and T1DM + CP. Our findings demonstrated the functional relevance of the IL-17A polymorphism with higher IL-17 secretion in individuals with A allele.
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What the Erythrocytic Nuclear Alteration Frequencies Could Tell Us about Genotoxicity and Macrophage Iron Storage? PLoS One 2015; 10:e0143029. [PMID: 26619141 PMCID: PMC4664483 DOI: 10.1371/journal.pone.0143029] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2015] [Accepted: 10/29/2015] [Indexed: 11/19/2022] Open
Abstract
Erythrocytic nuclear alterations have been considered as an indicative of organism’s exposure to genotoxic agents. Due to their close relationship among their frequencies and DNA damages, they are considered excellent markers of exposure in eukaryotes. However, poor data has been found in literature concerning their genesis, differential occurrence and their life span. In this study, we use markers of cell viability; genotoxicity and cellular turn over in order to shed light to these events. Tilapia and their blood were exposed to cadmium in acute exposure and in vitro assays. They were analyzed using flow cytometry for oxidative stress and membrane disruption, optical microscopy for erythrocytic nuclear alteration, graphite furnace atomic absorption spectrometry for cadmium content in aquaria water, blood and cytochemical and analytical electron microscopy techniques for the hemocateretic aspects. The results showed a close relationship among the total nuclear alterations and cadmium content in the total blood and melanomacrophage centres area, mismatching reactive oxygen species and membrane damages. Moreover, nuclear alterations frequencies (vacuolated, condensed and blebbed) showed to be associated to cadmium exposure whereas others (lobed and bud) were associated to depuration period. Decrease on nuclear alterations frequencies was also associated with hemosiderin increase inside spleen and head kidney macrophages mainly during depurative processes. These data disclosure in temporal fashion the main processes that drive the nuclear alterations frequencies and their relationship with some cellular and systemic biomarkers.
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Association between single nucleotide polymorphisms IL17RA rs4819554 and IL17E rs79877597 and Psoriasis in a Spanish cohort. J Dermatol Sci 2015; 80:111-5. [DOI: 10.1016/j.jdermsci.2015.06.011] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2015] [Revised: 04/29/2015] [Accepted: 06/23/2015] [Indexed: 11/21/2022]
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Prieto-Pérez R, Solano-López G, Cabaleiro T, Román M, Ochoa D, Talegón M, Baniandrés O, López Estebaranz JL, de la Cueva P, Daudén E, Abad-Santos F. The polymorphism rs763780 in the IL-17F gene is associated with response to biological drugs in patients with psoriasis. Pharmacogenomics 2015; 16:1723-31. [DOI: 10.2217/pgs.15.107] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Psoriasis improves when IL-17 is blocked. Anti-TNF drugs reduce the IL-17 signaling pathway, and anti-IL-17 drugs are being developed to treat moderate-to-severe psoriasis. We analyzed three SNPs in IL-17A (rs2275913 and rs10484879) and IL-17F (rs763780) to look for an association with psoriasis and/or with response to anti-TNF drugs or ustekinumab. We included 197 healthy controls and 194 patients with moderate-to-severe psoriasis. The results of the univariate analysis showed an association between rs10484879 and psoriasis, although this relationship disappeared after adjustment for HLA-C (rs12191877). We also found an association between rs763780 (IL-17F) and response to ustekinumab (n = 70) and infliximab (n = 37) at 3 and 6 months and an association between rs763780 and the response to adalimumab at 6 months (n = 67).
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Affiliation(s)
- Rocío Prieto-Pérez
- Clinical Pharmacology Service, Hospital Universitario de la Princesa, Instituto Teófilo Hernando, University Autónoma de Madrid (UAM), Instituto de Investigación Sanitaria Princesa (IP), Madrid, Spain
| | - Guillermo Solano-López
- Dermatology Service, Hospital Universitario de la Princesa, Instituto de Investigación Sanitaria Princesa (IP), Madrid, Spain
| | - Teresa Cabaleiro
- Clinical Pharmacology Service, Hospital Universitario de la Princesa, Instituto Teófilo Hernando, University Autónoma de Madrid (UAM), Instituto de Investigación Sanitaria Princesa (IP), Madrid, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Manuel Román
- Clinical Pharmacology Service, Hospital Universitario de la Princesa, Instituto Teófilo Hernando, University Autónoma de Madrid (UAM), Instituto de Investigación Sanitaria Princesa (IP), Madrid, Spain
| | - Dolores Ochoa
- Clinical Pharmacology Service, Hospital Universitario de la Princesa, Instituto Teófilo Hernando, University Autónoma de Madrid (UAM), Instituto de Investigación Sanitaria Princesa (IP), Madrid, Spain
| | - María Talegón
- Clinical Pharmacology Service, Hospital Universitario de la Princesa, Instituto Teófilo Hernando, University Autónoma de Madrid (UAM), Instituto de Investigación Sanitaria Princesa (IP), Madrid, Spain
| | - Ofelia Baniandrés
- Dermatology Service, Hospital Universitario Gregorio Marañón, 28007 Madrid, Spain
| | | | - Pablo de la Cueva
- Dermatology Service, Hospital Universitario Infanta Leonor, 28031 Madrid, Spain
| | - Esteban Daudén
- Dermatology Service, Hospital Universitario de la Princesa, Instituto de Investigación Sanitaria Princesa (IP), Madrid, Spain
| | - Francisco Abad-Santos
- Clinical Pharmacology Service, Hospital Universitario de la Princesa, Instituto Teófilo Hernando, University Autónoma de Madrid (UAM), Instituto de Investigación Sanitaria Princesa (IP), Madrid, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Instituto de Salud Carlos III, 28029 Madrid, Spain
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The Influence of Interleukin 17A and IL17F Polymorphisms on Chronic Periodontitis Disease in Brazilian Patients. Mediators Inflamm 2015; 2015:147056. [PMID: 26339129 PMCID: PMC4539172 DOI: 10.1155/2015/147056] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2015] [Accepted: 05/18/2015] [Indexed: 12/17/2022] Open
Abstract
A case-control study was conducted on patients with chronic periodontitis (CP) and healthy controls with the aim of evaluating possible association between interleukin 17A (IL17A) G197A (rs2275913) and IL17F T7488C (rs763780) polymorphisms and periodontitis. Genotypes were determined by PCR-RFLP method. Statistical analyses were conducted using the OpenEpi and SNPStas software to calculate Chi-square with Yates correction or Fisher's exact tests, odds ratios (OR), and 95% confidence intervals (CIs). SNPStas software was used to calculate Hardy-Weinberg equilibrium. IL17A AA genotype was more frequent in patients with chronic periodontitis (CP) in the codominant and recessive models (P = 0.09; OR = 2.53 and P = 0.03; OR = 2.46, resp.), the females with CP (P = 0.01, OR = 4.34), Caucasoid patients with CP (P = 0.01, OR = 3.45), and nonsmoking Caucasian patients with CP (P = 0.04, OR = 3.51). The IL17A A allele was also more frequent in Caucasians with CP (P = 0.04, OR = 1.59). IL17F T7488C polymorphism was not associated with chronic periodontitis. In these patients from Southern Brazil, the IL17A rs2275913 polymorphisms, IL17A AA genotype, and the A allele were associated with a susceptibility to chronic periodontitis.
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Moretti S, Bartolommei L, Galosi C, Renga G, Oikonomou V, Zamparini F, Ricci G, Borghi M, Puccetti M, Piobbico D, Eramo S, Conti C, Lomurno G, Bartoli A, Napolioni V, Romani L. Fine-tuning of Th17 Cytokines in Periodontal Disease by IL-10. J Dent Res 2015; 94:1267-75. [PMID: 26092379 DOI: 10.1177/0022034515591790] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Periodontitis (PD) is a chronic disease caused by the host inflammatory response to bacteria colonizing the oral cavity. In addition to tolerance to oral microbiome, a fine-tuned balance of IL-10 levels is critical to efficiently mount antimicrobial resistance without causing immunopathology. Clinical and animal studies support that adaptive T-helper (Th) cytokines are involved in the pathogenesis of alveolar bone destruction in PD. However, it remains unclear what type of Th response is related to human PD progression and what role IL-10 has on this process. We addressed the contribution of IL-10 in limiting Th1 and Th17 inflammatory response in murine and human PD. Through a combination of basic and translational approaches involving selected cytokine-deficient mice as well as human genetic epidemiology, our results demonstrate the requirement for IL-10 in fine-tuning the levels of Th17 (IL-17A and IL-17F) cytokines in experimental and human PD. Of novelty, we found that IL-17F correlated with protection in murine and human PD and was positively regulated by IL-10. To our knowledge, this is the first demonstration of the protective role for IL-17F in PD, its positive regulation by IL-10, and the potential differential role for IL-17A and IL-17F in periodontal disease.
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Affiliation(s)
- S Moretti
- Department of Experimental Medicine, University of Perugia, Perugia, Italy
| | - L Bartolommei
- Department of Experimental Medicine, University of Perugia, Perugia, Italy
| | - C Galosi
- Department of Experimental Medicine, University of Perugia, Perugia, Italy
| | - G Renga
- Department of Experimental Medicine, University of Perugia, Perugia, Italy
| | - V Oikonomou
- Department of Experimental Medicine, University of Perugia, Perugia, Italy
| | - F Zamparini
- Department of Experimental Medicine, University of Perugia, Perugia, Italy
| | - G Ricci
- Department of Veterinary Pathology, University of Perugia, Perugia, Italy
| | - M Borghi
- Department of Experimental Medicine, University of Perugia, Perugia, Italy
| | - M Puccetti
- Department of Experimental Medicine, University of Perugia, Perugia, Italy
| | - D Piobbico
- Department of Experimental Medicine, University of Perugia, Perugia, Italy
| | - S Eramo
- Department of Surgical and Biochemical Sciences, University of Perugia, Perugia, Italy
| | - C Conti
- Dental Clinic, Ospedale Santa Maria della Misericordia, Perugia, Italy
| | - G Lomurno
- Dental Clinic, Ospedale Santa Maria della Misericordia, Perugia, Italy
| | - A Bartoli
- Department of Experimental Medicine, University of Perugia, Perugia, Italy
| | - V Napolioni
- Department of Experimental Medicine, University of Perugia, Perugia, Italy
| | - L Romani
- Department of Experimental Medicine, University of Perugia, Perugia, Italy
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Maney P, Owens JL. Interleukin polymorphisms in aggressive periodontitis: A literature review. J Indian Soc Periodontol 2015; 19:131-41. [PMID: 26015661 PMCID: PMC4439620 DOI: 10.4103/0972-124x.145787] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2014] [Accepted: 07/22/2014] [Indexed: 12/29/2022] Open
Abstract
Aggressive periodontitis (AgP), occurs in a younger age group (≤35 years) and is associated with the rapid destruction of periodontal attachment and supporting bone. Genetic polymorphisms are allelic variants that occur in at least 1% of the population that could potentially alter the function of the proteins that they encode. Interleukins are a group of cytokines that have complex immunological functions including proliferation, migration, growth and differentiation of cells and play a key role in the immunopathogenesis of periodontal disease. The aim of this review was to summarize the findings of studies that reported associations or potential associations of polymorphisms in the interleukin family of cytokines, specifically with AgP.
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Affiliation(s)
- Pooja Maney
- Department of Periodontics, Louisiana State University Health Sciences Center, School of Dentistry, New Orleans, Louisiana, USA
| | - Jessica Leigh Owens
- Department of Periodontics, Louisiana State University Health Sciences Center, School of Dentistry, New Orleans, Louisiana, USA
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28
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Azman R, Lappin DF, MacPherson A, Riggio M, Robertson D, Hodge P, Ramage G, Culshaw S, Preshaw PM, Taylor J, Nile C. Clinical associations between IL-17 family cytokines and periodontitis and potential differential roles for IL-17A and IL-17E in periodontal immunity. Inflamm Res 2014; 63:1001-12. [DOI: 10.1007/s00011-014-0776-7] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2014] [Revised: 08/14/2014] [Accepted: 10/10/2014] [Indexed: 12/31/2022] Open
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Interleukin-17 gene polymorphisms contribute to cancer risk. Mediators Inflamm 2014; 2014:128490. [PMID: 25147431 PMCID: PMC4131465 DOI: 10.1155/2014/128490] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2014] [Revised: 07/13/2014] [Accepted: 07/14/2014] [Indexed: 01/16/2023] Open
Abstract
Epidemiological studies have suggested that interleukin-17 (IL-17) polymorphisms are associated with cancer risk. However, the results of these studies are inconsistent. Therefore, we performed a meta-analysis to obtain a precise conclusion. Odds ratios (ORs) with 95% confidence intervals (CIs) were used to assess the association of the IL-17A rs2275913G>A and IL-17F rs763780T>C polymorphisms with cancer risk. Publication bias and sensitivity analyses were performed to ensure the statistical power. Overall, 10 relevant case-control studies involving 4,516 cases and 5,645 controls were included. The pooled ORs with 95% CIs indicated that the IL-17A rs2275913G>A polymorphism was significantly associated with increased cancer risk (for A versus G: OR = 1.28, 95% CI: 1.16–1.41, P < 0.001, I2 = 61.1%; for GA versus GG: OR = 1.12, 95% CI: 1.02–1.23, P = 0.015, I2 = 27.8%; for AA versus GG: OR = 1.71, 95% CI: 1.38–2.41, P < 0.001, I2 = 69.6%; for GA + AA versus GG: OR = 1.23, 95% CI: 1.13–1.34, P < 0.001, I2 = 6.4%; for AA versus GG + GA: OR = 1.62, 95% CI: 1.27–2.07, P < 0.001, I2 = 81.4%). Succeeding analysis of HWE and stratified analysis of gastric cancer and the Asian (and Chinese) population revealed similar results. The IL-17F rs763780T>C polymorphism was also significantly associated with gastric cancer development. Overall, the present meta-analysis suggests that IL-17 polymorphisms increase the risk of developing cancer, particularly gastric cancer, in the Asian (and Chinese) population.
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30
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Naiff PF, Ferraz R, Cunha CF, Orlandi PP, Boechat AL, Bertho ÁL, Dos-Santos MC. Immunophenotyping in Saliva as an Alternative Approach for Evaluation of Immunopathogenesis in Chronic Periodontitis. J Periodontol 2014; 85:e111-20. [DOI: 10.1902/jop.2013.130412] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Yang W, Jia Y, Wu H. Four tumor necrosis factor alpha genes polymorphisms and periodontitis risk in a Chinese population. Hum Immunol 2013; 74:1684-7. [PMID: 23973890 DOI: 10.1016/j.humimm.2013.08.009] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2013] [Revised: 06/26/2013] [Accepted: 08/10/2013] [Indexed: 12/31/2022]
Abstract
BACKGROUND Tumour necrosis factor-alpha (TNF-alpha) has been implicated in the pathogenesis of generalized aggressive periodontitis (AgP) and chronic periodontitis (CP). The objective of the present study was to evaluate the association of four TNF-alpha gene polymorphisms (-1031T/C, -857C/T, -308G/A and -238G/A) with susceptibility to AgP and CP in a Chinese population. METHODS A hospital-based case-control study was conducted in in patients with CP (n = 180), AgP (n = 180) and healthy controls (n = 180). Gene promoter polymorphisms were analyzed by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) assay. Genotype and allele frequencies were analyzed using the chi-square test and logistic regression analysis. RESULTS TNF-alpha -1031CC genotype was significantly higher [odds ratio (OR) = 2.36, 95% confidence interval (CI) = 1.03, 5.43; P = 0.04] in patients with CP compared with healthy controls. TNF-alpha -308AA genotype was significantly higher (OR = 2.71, 95% CI = 1.09, 6.73; P = 0.03) in patients with AgP compared with healthy controls. No association was found of TNF-alpha -857C/T and -238G/A polymorphisms with susceptibility to AgP or CP. CONCLUSIONS Our data demonstrated that TNF-alpha -1031CC genotype was a risk factor for CP, and that TNF-alpha -308AA genotype was a risk factor for AgP. But there is a lack of association of TNF-alpha -857C/T and -238G/A polymorphisms with susceptibility to AgP or CP in a Chinese population.
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Affiliation(s)
- Wenwei Yang
- Department of Geriatric Dentistry, West China College of Stomatology, Sichuan University, Chengdu 610041, China
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