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Paladines N, Dawson S, Ryan W, Serrano-Lopez R, Messer R, Huo Y, Cutler CW, Ramos-Junior ES, Morandini AC. Metabolic reprogramming through mitochondrial biogenesis drives adenosine anti-inflammatory effects: new mechanism controlling gingival fibroblast hyper-inflammatory state. Front Immunol 2023; 14:1148216. [PMID: 37350964 PMCID: PMC10282177 DOI: 10.3389/fimmu.2023.1148216] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Accepted: 05/25/2023] [Indexed: 06/24/2023] Open
Abstract
Introduction Fibroblasts are the dominant stromal cells in the gingival lamina propria with a well-established relevance in regulation of inflammation, and in innate immunity. This is exemplified by their hypersecretion of CXCL8, enhancing leukocyte infiltration in chronic and sustained inflammatory conditions. We have previously shown adenosine to be a key metabolic nucleoside that regulates stromal inflammation, but the underlying mechanisms linking adenosine to the metabolic status of fibroblasts and to the resultant inflammatory response are unclear. This study examined, by seahorse real-time cell metabolic analysis, the bioenergetics of the stromal fibroblast response to extracellular adenosine and IL-1β, focusing on CXCL8 secretion by primary human gingival fibroblasts (HGF). Methods Markers of the glycolytic pathway and mitochondrial biogenesis were tracked through immunoblot. Further, the influence of adenosine on mitochondrial accumulation was measured by uptake of MitoTracker Red fluorescent probe and assessment of the role of FCCP (a mitochondrial uncoupler) in CXCL8 secretion and mitochondrial accumulation. Results Our results show that the anti-inflammatory response of HGF to extracellular adenosine, typified by reduced CXCL8 secretion, is mediated by mitochondrial oxidative phosphorylation, reflected in higher oxygen consumption rate (OCR). In the presence of IL-1β, adenosine-treated cells induced higher ATP production, basal respiration and proton leak compared to IL-1β without adenosine. Surprisingly, adenosine had no additional effect on the IL-1β-induced higher glycolysis rate demonstrated by the extracellular acidification rate (ECAR). In addition, the higher OCR in adenosine-stimulated cells was not due to the mitochondrial fuel dependency or capacity, but due to an increase in mitochondrial biogenesis and accumulation in the cells with concomitant decrease in mitophagy-required p-PINK1 marker. We detected the accumulation of functional mitochondria with increased activation of the AMPK/SIRT1/PGC-1α pathway. The adenosine-induced uptake of MitoTracker was abrogated by PGC-1α inhibition with SR-12898. In addition, the adenosine effects on reduced CXCL8 were ablated by treatment with FCCP, a potent uncoupler of mitochondrial oxidative phosphorylation. Conclusion Our findings reveal a key role for mitochondrial bioenergetics in regulation of CXCL8-mediated inflammation by HGF through the adenosine/AMPK/SIRT1/PGC-1α axis. Therapeutically targeting this pathway in gingival fibroblasts might be a promising future strategy to modulate stromal-mediated sustained hyper-inflammatory responses.
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Affiliation(s)
- Nathalie Paladines
- Department of Oral Biology and Diagnostic Sciences, Dental College of Georgia, Augusta University, Augusta, GA, United States
| | - Shantiece Dawson
- Department of Oral Biology and Diagnostic Sciences, Dental College of Georgia, Augusta University, Augusta, GA, United States
| | - Weston Ryan
- Department of Oral Biology and Diagnostic Sciences, Dental College of Georgia, Augusta University, Augusta, GA, United States
| | - Rogelio Serrano-Lopez
- Department of Oral Biology and Diagnostic Sciences, Dental College of Georgia, Augusta University, Augusta, GA, United States
| | - Regina Messer
- Department of Oral Biology and Diagnostic Sciences, Dental College of Georgia, Augusta University, Augusta, GA, United States
| | - Yuqing Huo
- Department of Cellular Biology and Anatomy, Medical College of Georgia, Augusta University, Augusta, GA, United States
- Vascular Biology Center, Augusta University, Augusta, GA, United States
| | - Christopher W. Cutler
- Department of Periodontics, Dental College of Georgia, Augusta University, Augusta, GA, United States
| | - Erivan S. Ramos-Junior
- Department of Oral Biology and Diagnostic Sciences, Dental College of Georgia, Augusta University, Augusta, GA, United States
| | - Ana Carolina Morandini
- Department of Oral Biology and Diagnostic Sciences, Dental College of Georgia, Augusta University, Augusta, GA, United States
- Department of Periodontics, Dental College of Georgia, Augusta University, Augusta, GA, United States
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Dolcetti E, Bruno A, Azzolini F, Gilio L, Pavone L, Iezzi E, Galifi G, Gambardella S, Ferese R, Buttari F, De Vito F, Colantuono P, Furlan R, Finardi A, Musella A, Mandolesi G, Centonze D, Stampanoni Bassi M. Genetic regulation of IL-8 influences disease presentation of multiple sclerosis. Mult Scler 2023; 29:512-520. [PMID: 36803228 DOI: 10.1177/13524585231155049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Abstract
BACKGROUND Individual genetic variability may influence the course of multiple sclerosis (MS). The interleukin (IL)-8C>T rs2227306 single nucleotide polymorphism (SNP) regulates IL-8 activity in other clinical conditions; however, its role in MS has never been investigated. OBJECTIVES To explore the association between IL-8 SNP rs2227306, cerebrospinal fluid (CSF) IL-8 concentrations, clinical, and radiological characteristics in a group of newly diagnosed MS patients. METHODS In 141 relapsing-remitting (RR)-MS patients, rs2227306 polymorphism, CSF levels of IL-8, clinical, and demographical characteristics were determined. In 50 patients, structural magnetic resonance imaging (MRI) measures were also assessed. RESULTS An association between CSF IL-8 and Expanded Disability Status Scale (EDSS) at diagnosis was found in our set of patients (r = 0.207, p = 0.014). CSF IL-8 concentrations were significantly higher in patients carrying the T variant of rs2227306 (p = 0.004). In the same group, a positive correlation emerged between IL-8 and EDSS (r = 0.273, p = 0.019). Finally, a negative correlation between CSF levels of IL-8 and cortical thickness emerged in rs2227306T carriers (r = -0.498, p = 0.005). CONCLUSION We describe for the first time a role of SNP rs2227306 of IL-8 gene in regulating the expression and the activity of this inflammatory cytokine in MS.
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Affiliation(s)
| | | | | | | | | | | | | | - Stefano Gambardella
- IRCSS Neuromed, Pozzilli, Italy/Department of Biomolecular Sciences, University of Urbino "Carlo Bo," Urbino, Italy
| | | | | | | | - Paola Colantuono
- Department of Medicine and Health Sciences "Vincenzo Tiberio," Unimol, Campobasso, Italy
| | - Roberto Furlan
- Clinical Neuroimmunology Unit, Institute of Experimental Neurology (INSpe), Division of Neuroscience, San Raffaele Hospital, Milan, Italy
| | - Annamaria Finardi
- Clinical Neuroimmunology Unit, Institute of Experimental Neurology (INSpe), Division of Neuroscience, San Raffaele Hospital, Milan, Italy
| | - Alessandra Musella
- Synaptic Immunopathology Lab, IRCCS San Raffaele Roma, Roma, Italy/Department of Human Sciences and Quality of Life Promotion, University of Rome San Raffaele, Rome, Italy
| | - Georgia Mandolesi
- Synaptic Immunopathology Lab, IRCCS San Raffaele Roma, Roma, Italy/Department of Human Sciences and Quality of Life Promotion, University of Rome San Raffaele, Rome, Italy
| | - Diego Centonze
- IRCSS Neuromed, Pozzilli, Italy/Department of Systems Medicine, Tor Vergata University, Rome, Italy
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Panezai J, van Dyke T. Polyunsaturated Fatty Acids and Their Immunomodulatory Actions in Periodontal Disease. Nutrients 2023; 15:nu15040821. [PMID: 36839179 PMCID: PMC9965392 DOI: 10.3390/nu15040821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 01/20/2023] [Accepted: 02/01/2023] [Indexed: 02/08/2023] Open
Abstract
Polyunsaturated fatty acids (PUFAs) are a diverse set of molecules with remarkable contributions to human physiology. They not only serve as sources of fuel but also cellular structural components as well as substrates that provide bioactive metabolites. A growing body of evidence demonstrates their role in inflammation. Inflammation in the presence of a polymicrobial biofilm contributes to the pathology of periodontitis. The role PUFAs in modulating immuno-inflammatory reactions in periodontitis is only beginning to be uncovered as research continues to unravel their far-reaching immunologic implications.
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Affiliation(s)
- Jeneen Panezai
- Department of Applied Oral Sciences, The Forsyth Institute, Cambridge, MA 02142, USA
- Department of Microbiology, Faculty of Life Sciences and Informatics, Balochistan University of Information Technology, Engineering and Management Sciences, Quetta 87300, Pakistan
| | - Thomas van Dyke
- Department of Applied Oral Sciences, The Forsyth Institute, Cambridge, MA 02142, USA
- Centre for Clinical and Translational Research, The Forsyth Institute, Cambridge, MA 02142, USA
- Department of Oral Medicine, Infection and Immunity, Harvard Faculty of Medicine, Boston, MA 02115, USA
- Correspondence:
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Periodontitis association with IL-8 gene polymorphisms. Biomed Pap Med Fac Univ Palacky Olomouc Czech Repub 2021; 166:28-39. [PMID: 34907404 DOI: 10.5507/bp.2021.066] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Accepted: 11/16/2021] [Indexed: 12/15/2022] Open
Abstract
IL-8 and its polymorphisms are involved in multiple acute and chronic inflammatory processes including pathological changes to surrounding structures of the teeth called periodontal diseases or periodontitis. The aim of this manuscript was to systematically review studies from 2006 to 2021 on IL-8 polymorphisms and their association with periodontitis. Literature analysis was done following the PRISMA protocol guidance using articles not older than 15 years (2006-2021). The search was carried out using PubMed (MEDLINE), ScienceDirect and Wiley Online Library databases. For the focus question, the PICO (population (P), intervention (I), control (C), and outcome (O)) study design protocol was used, and the following question was formulated: are IL-8 gene polymorphisms associated with periodontitis? A total of 2422 articles were found at the beginning of the search. After applying the inclusion and exclusion criteria, screening, and full-text article exclusion with reasons, 31 studies were included in the analysis. In conclusion, IL-8 and its gene polymorphisms are associated with an increased risk of periodontal diseases.
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Grolmusz VK, Bozsik A, Papp J, Patócs A. Germline Genetic Variants of Viral Entry and Innate Immunity May Influence Susceptibility to SARS-CoV-2 Infection: Toward a Polygenic Risk Score for Risk Stratification. Front Immunol 2021; 12:653489. [PMID: 33763088 PMCID: PMC7982482 DOI: 10.3389/fimmu.2021.653489] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Accepted: 02/16/2021] [Indexed: 12/15/2022] Open
Abstract
The ongoing COVID-19 pandemic caused by the novel coronavirus, SARS-CoV-2 has affected all aspects of human society with a special focus on healthcare. Although older patients with preexisting chronic illnesses are more prone to develop severe complications, younger, healthy individuals might also exhibit serious manifestations. Previous studies directed to detect genetic susceptibility factors for earlier epidemics have provided evidence of certain protective variations. Following SARS-CoV-2 exposure, viral entry into cells followed by recognition and response by the innate immunity are key determinants of COVID-19 development. In the present review our aim was to conduct a thorough review of the literature on the role of single nucleotide polymorphisms (SNPs) as key agents affecting the viral entry of SARS-CoV-2 and innate immunity. Several SNPs within the scope of our approach were found to alter susceptibility to various bacterial and viral infections. Additionally, a multitude of studies confirmed genetic associations between the analyzed genes and autoimmune diseases, underlining the versatile immune consequences of these variants. Based on confirmed associations it is highly plausible that the SNPs affecting viral entry and innate immunity might confer altered susceptibility to SARS-CoV-2 infection and its complex clinical consequences. Anticipating several COVID-19 genomic susceptibility loci based on the ongoing genome wide association studies, our review also proposes that a well-established polygenic risk score would be able to clinically leverage the acquired knowledge.
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Affiliation(s)
- Vince Kornél Grolmusz
- Department of Molecular Genetics, National Institute of Oncology, Budapest, Hungary.,Hereditary Tumors Research Group, Eötvös Loránd Research Network-Semmelweis University, Budapest, Hungary
| | - Anikó Bozsik
- Department of Molecular Genetics, National Institute of Oncology, Budapest, Hungary.,Hereditary Tumors Research Group, Eötvös Loránd Research Network-Semmelweis University, Budapest, Hungary
| | - János Papp
- Department of Molecular Genetics, National Institute of Oncology, Budapest, Hungary.,Hereditary Tumors Research Group, Eötvös Loránd Research Network-Semmelweis University, Budapest, Hungary
| | - Attila Patócs
- Department of Molecular Genetics, National Institute of Oncology, Budapest, Hungary.,Hereditary Tumors Research Group, Eötvös Loránd Research Network-Semmelweis University, Budapest, Hungary.,Department of Laboratory Medicine, Semmelweis University, Budapest, Hungary
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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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Ben Afia A, Aflouk Y, Saoud H, Zaafrane F, Gaha L, Bel Hadj Jrad B. Inteurleukin-8 gene variations and the susceptibility to schizophrenia. Psychiatry Res 2020; 293:113421. [PMID: 32920525 DOI: 10.1016/j.psychres.2020.113421] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 08/18/2020] [Accepted: 08/21/2020] [Indexed: 12/13/2022]
Abstract
The relevance of Interleukin-8 (IL-8) cytokine alteration in the peripheral and central system has been widely shown in psychosis while variation in the IL-8 gene remains largely unexplored and to the best of our knowledge, IL-8 polymorphisms have never been specifically targeted in Schizophrenia (Scz). Thus, we set out to search a potential correlation between rs4073, rs2227306 and rs1126647 polymorphisms in IL-8 gene and the development of Scz in a sample of the Tunisian population in a candidate gene approach. Targeted polymorphisms were analysed in 206 patients and 195 controls using PCR-RFLP method. Among all analysed polymorphisms, only rs1126647 showed a significant risk for Scz. After stratification analysis, we noted a significant association of TT genotype and T allele at rs1126647 with paranoid form, and more specifically with female sex. We find that the rare haplotypes at rs4073-rs2227306-rs1126647 of TTT, ACT and TCT, each containing the risk allele rs1126647T, were associated with increased risk for paranoid Scz while only the TCT combination constituted a risk factor for Scz more generally. Our findings support that IL-8 gene may be involved in susceptibility to Scz but this still preliminary and needs to be strengthened by further independent analyses.
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Affiliation(s)
- Amira Ben Afia
- Laboratory of Genetics, Biodiversity and Bioresource Valorization, Higher Institute of Biotechnology of Monastir, University of Monastir, Monastir 5000, street Taher Haddad, Monastir, Tunisia.
| | - Youssef Aflouk
- Laboratory of Genetics, Biodiversity and Bioresource Valorization, Higher Institute of Biotechnology of Monastir, University of Monastir, Monastir 5000, street Taher Haddad, Monastir, Tunisia
| | - Hana Saoud
- Laboratory of Genetics, Biodiversity and Bioresource Valorization, Higher Institute of Biotechnology of Monastir, University of Monastir, Monastir 5000, street Taher Haddad, Monastir, Tunisia
| | - Farid Zaafrane
- Department of Psychiatry and Vulnerability to Psychoses Laboratory-CHU Monastir, Tunisia
| | - Lotfi Gaha
- Department of Psychiatry and Vulnerability to Psychoses Laboratory-CHU Monastir, Tunisia
| | - Besma Bel Hadj Jrad
- Laboratory of Genetics, Biodiversity and Bioresource Valorization, Higher Institute of Biotechnology of Monastir, University of Monastir, Monastir 5000, street Taher Haddad, Monastir, Tunisia
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8
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Silva BRD, Cirelli T, Nepomuceno R, Theodoro LH, Orrico SRP, Cirelli JA, Barros SP, Scarel-Caminaga RM. Functional haplotype in the Interleukin8 (CXCL8) gene is associated with type 2 Diabetes Mellitus and Periodontitis in Brazilian population. Diabetes Metab Syndr 2020; 14:1665-1672. [PMID: 32905938 DOI: 10.1016/j.dsx.2020.08.036] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 08/27/2020] [Accepted: 08/29/2020] [Indexed: 12/14/2022]
Abstract
BACKGROUND AND AIM Type 2 Diabetes Mellitus (T2DM) and Periodontitis (P) are prevalent multifactorial disorders worldwide, sharing a bidirectional relationship influenced by the genetic susceptibility of the host immune system. We investigated whether SNPs in the Interleukin 8 (IL8, alias CXCL8) gene could be associated with T2DM and Periodontitis. METHODS Genomic DNA was obtained from 874 Brazilian individuals divided into: Healthy group (n = 307), Periodontitis group (n = 334), and individuals affected by both T2DM and Periodontitis (T2DM_P) group (n = 233). The SNPs -251(T>A) rs4073, +396(T>G) rs2227307 and +781(C>T) rs2227306 were genotyped by TaqMan®. Multiple logistic regressions were used to determine the degree of association between polymorphisms (and haplotypes) with periodontitis and T2DM adjusted for known confounders. RESULTS The additive model revealed that the heterozygous AT(-251), GT(+396) and CT(+781) genotypes showed a lower risk for the diseased phenotypes, and carriers of the TTC/TTC haplotype were significantly susceptible to T2DM and Periodontitis concomitantly, as well to isolated Periodontitis (mainly the severe form). CONCLUSIONS We concluded, for the first time, that these functional CXCL8 SNPs, and the homozygous TTC haplotype are relevant genetic factors for T2DM and Periodontitis as comorbidities, as well as for severe Periodontitis susceptibility in Brazilian population.
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Affiliation(s)
- 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, Genetics, Orthodontics and Pediatric Dentistry, 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, Genetics, Orthodontics and Pediatric Dentistry, 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, Genetics, Orthodontics and Pediatric Dentistry, São Paulo State University - UNESP, School of Dentistry at Araraquara, Araraquara, SP, Brazil
| | - Letícia Helena Theodoro
- Department of Surgery and Integrated Clinic, São Paulo State University - UNESP, School of Dentistry at Araçatuba, Araçatuba, 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
| | - Silvana P Barros
- Department of Comprehensive Oral Health - Periodontology, University of North Carolina at Chapel Hill - UNC, School of Dentistry, Chapel Hill, NC, USA
| | - Raquel M Scarel-Caminaga
- Department of Morphology, Genetics, Orthodontics and Pediatric Dentistry, São Paulo State University - UNESP, School of Dentistry at Araraquara, Araraquara, SP, Brazil.
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Pigossi SC, Anovazzi G, Finoti LS, de Medeiros MC, de Souza-Moreira TM, Mayer MPA, Zanelli CF, Valentini SR, Rossa Junior C, Scarel-Caminaga RM. The ATC/TTC haplotype in the Interleukin 8 gene in response to Gram-negative bacteria: A pilot study. Arch Oral Biol 2019; 107:104508. [PMID: 31382162 DOI: 10.1016/j.archoralbio.2019.104508] [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: 05/27/2019] [Revised: 07/16/2019] [Accepted: 07/24/2019] [Indexed: 01/23/2023]
Abstract
OBJECTIVE The aim of this study was to investigate the functionality of ATC/TTC (Hap-1) and ATT/TTC (Hap-2) Interleukin (IL) 8 gene haplotypes in the response of neutrophils to Gram-negative bacteria associated with periodontitis. DESIGN Neutrophils were isolated by gradient centrifugation from whole peripheral blood of systemically healthy individuals presenting the two IL8 gene haplotypes. Neutrophils were stimulated with P. gingivalis, A. actinomycetemcomitans and PMA/ionomycin. Cytokine gene expression (RT-qPCR) and migration/chemotaxis (boyden chamber assay) were compared according to the presence of Hap-1 or Hap-2 haplotypes. Protein production was also evaluted in the multiplex assay using the mixed population of leukocytes present in the whole blood from the same individuals. The influence of these two haplotypes on the IL8 promoter activity was assessed in gene-reporter experiments. RESULTS Hap-1 haplotype in neutrophils and leukocytes exacerbated the response to stimulation with Gram-negative bacteria, with higher levels of TNF-α (mRNA and protein), IL-1β, IL-2R and IFN-γ (protein) and with increased chemotaxis. Presence of the T allele at the rs4071 polymorphism (alias -251) was associated with increased activity of IL8 proximal promoter. CONCLUSIONS Neutrophils and leukocytes carrying the Hap-1 haplotype (ATC/TTC) in the IL8 gene present an enhanced response to stimulation with Gram-negative bacteria associated with periodontitis. Presence of the T allele (rs4073) in the IL8 proximal promoter increases transcription activity.
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Affiliation(s)
- Suzane C Pigossi
- Department of Oral Diagnosis and Surgery, School of Dentistry at Araraquara, UNESP- São Paulo State University, São Paulo, Brazil; Department of Clinics and Surgery, School of Dentistry, Alfenas Federal University (UNIFAL-MG), Minas Gerais, Brazil
| | - Giovana Anovazzi
- Department of Oral Diagnosis and Surgery, School of Dentistry at Araraquara, UNESP- São Paulo State University, São Paulo, Brazil
| | - Livia S Finoti
- Department of Oral Diagnosis and Surgery, School of Dentistry at Araraquara, UNESP- São Paulo State University, São Paulo, Brazil
| | - Marcell C de Medeiros
- Department of Oral Diagnosis and Surgery, School of Dentistry at Araraquara, UNESP- São Paulo State University, São Paulo, Brazil
| | - Tatiana Maria de Souza-Moreira
- Department of Biological Sciences, School of Pharmaceutical Sciences, UNESP- São Paulo State University, São Paulo, Brazil
| | - Marcia P A Mayer
- Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Cleslei Fernando Zanelli
- Department of Biological Sciences, School of Pharmaceutical Sciences, UNESP- São Paulo State University, São Paulo, Brazil
| | - Sandro Roberto Valentini
- Department of Biological Sciences, School of Pharmaceutical Sciences, UNESP- São Paulo State University, São Paulo, Brazil
| | - Carlos Rossa Junior
- Department of Oral Diagnosis and Surgery, School of Dentistry at Araraquara, UNESP- São Paulo State University, São Paulo, Brazil
| | - Raquel M Scarel-Caminaga
- Department of Morphology, School of Dentistry at Araraquara, UNESP- São Paulo State University, São Paulo, Brazil.
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Pigossi SC, Anovazzi G, Finoti LS, de Medeiros MC, Mayer MP, Rossa Junior C, Scarel-Caminaga RM. Functionality of the Interleukin 8 haplotypes in lymphocytes and macrophages in response to gram-negative periodontopathogens. Gene 2019; 689:152-160. [DOI: 10.1016/j.gene.2018.12.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Revised: 10/01/2018] [Accepted: 12/10/2018] [Indexed: 12/22/2022]
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Suvatha A, Sibin MK, Bhat DI, Narasingarao KVL, Vazhayil V, Chetan GK. Factor XIII polymorphism and risk of aneurysmal subarachnoid haemorrhage in a south Indian population. BMC MEDICAL GENETICS 2018; 19:159. [PMID: 30185149 PMCID: PMC6126001 DOI: 10.1186/s12881-018-0674-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Accepted: 08/29/2018] [Indexed: 01/13/2023]
Abstract
BACKGROUND The rupture of a brain aneurysm causes bleeding in the subarachnoid space and is known as aneurysmal subarachnoid haemorrhage (aSAH). In our study, we evaluated the association of factor XIII polymorphism and the risk of Aneurysmal subarachnoid haemorrhage (aSAH) in South Indian population. METHODS The study was performed in 200 subjects with aSAH and 205 healthy control subjects. Genotyping of rs5985(c.103G > T (p.Val35Leu)) and rs5982(c.1694C > T (p.Pro564Leu)) polymorphism was performed by Taqman® allelic discrimination assay. RESULTS In our study, Val/Leu genotype frequency was higher in control subjects (18%) compared to aSAH patients (9%).The Val/Leu genotype was associated with lower risk of aSAH (OR = 0.48, 95%CI = 0.26-0.88, p = 0.02). When compared with Val allele, Leu allele was significantly associated with lower risk of aSAH (OR = 0.55, 95%CI = 0.32-0.95, p = 0.03). In subtyping, we found a significant association of Leu/Leu genotype with the Basilar top aneurysm (OR = 3.59, 95%CI = 1.11-11.64, p = 0.03). In c.1694C > T (p.Pro565Leu) variant, Pro/Pro Vs Pro/Leu genotype (OR = 2.06, 95%CI = 1.10-3.85, p = 0.02) was significantly associated with higher risk of aSAH. The 564Leu allelic frequency in aSAH patients (36%) was higher when compared with that in healthy controls (30%) in our study. When allele frequency (Pro Vs Leu) was compared, 564Leu allele was found to be significantly associated with higher aSAH risk (OR = 1.36, 95%CI = 1.01-1.83, p = 0.04). (OR = 1.36, 95%CI = 1.01-1.83, p = 0.04). Regarding rs5985 and rs5982, significant association was found in the log-additive model (OR = 0.57, 95%CI = 0.33-0.97, p = 0.034; OR = 1.32, 95%CI = 1.00-1.72, p = 0.043). CONCLUSION These results suggest that 34Leu allele was a protective factor for lower risk of aSAH whereas 564Leu allele was associated with higher risk of aSAH in South Indian population.
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Affiliation(s)
- Arati Suvatha
- Department of Human Genetics, National Institute of Mental Health and Neuro Sciences, Bangalore, Karnataka, 560029, India
| | - M K Sibin
- Department of Biochemistry, Armed Forces Medical College, Pune, 411040, India
| | - Dhananjaya I Bhat
- Department of Neurosurgery, National Institute of Mental Health and Neuro Sciences, Bangalore, 560029, India
| | - K V L Narasingarao
- Department of Neurosurgery, National Institute of Mental Health and Neuro Sciences, Bangalore, 560029, India
| | - Vikas Vazhayil
- Department of Neurosurgery, National Institute of Mental Health and Neuro Sciences, Bangalore, 560029, India
| | - G K Chetan
- Department of Human Genetics, National Institute of Mental Health and Neuro Sciences, Bangalore, Karnataka, 560029, India.
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Sajadi M, Shahmohammadi A, Mahmazi S, Bashiri H, Bavandpour M, Yari K. Study of association between interleukin-8 - 845 T/C and + 781 C/T polymorphisms with periodontitis disease among population from Western Iran. Mol Biol Rep 2018; 45:1263-1268. [PMID: 30078118 DOI: 10.1007/s11033-018-4282-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2018] [Accepted: 07/24/2018] [Indexed: 02/06/2023]
Abstract
Periodontitis is a chronic inflammatory disease that influences the protective tissues of teeth. IL-8, a member of the chemokine super-family, plays vital roles in the pathogenesis of periodontitis with activation and migration of neutrophils in inflammatory regions. The purpose of present study was to evaluate the association of interleukin-8 - 845 T/C and + 781 C/T polymorphisms with periodontitis in an Iranian population. A total of 65 patients with periodontitis including 18 patients with chronic periodontitis and 47 patients with aggressive periodontitis and 55 controls were enrolled into our study. Interleukin-8 - 845 T/C and + 781 C/T polymorphisms were analyzed by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) assay. For + 781C/T locus, in the dominant genetic model there was a significant difference between TT vs. CC + CT genotypes that significantly had a protective role against periodontitis disease with a value of 0.38 (95% CI 0.16-0.90, p = 0.02). Also, the analysis of results showed a significant positive association between the distribution of IL-8 - 845 T/C alleles and the risk of periodontitis disease (χ2 = 6.2, p = 0.01) that presence of C allele of IL-8 - 845 increased the risk of periodontitis disease by 9.08-fold [OR 9.08 (95% CI 1.14-72.12, p = 0.03)]. In conclusion, our results demonstrate a positive association between distribution of IL-8 - 845 T/C alleles and risk of periodontitis disease.
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Affiliation(s)
- Mehdi Sajadi
- Department of Genetics, Faculty of Basic Sciences, Islamic Azad University, Zanjan Branch, Zanjan, Iran
| | - Azin Shahmohammadi
- Medical Biology Research Center, Kermanshah University of Medical Sciences, Daneshgah Avenue, Kermanshah, Iran
| | - Sanaz Mahmazi
- Department of Genetics, Faculty of Basic Sciences, Islamic Azad University, Zanjan Branch, Zanjan, Iran
| | - Hoda Bashiri
- Zagros Bioidea Co., Razi University Incubator, Kermanshah, Iran
| | - Mehrdad Bavandpour
- Department of Genetics, Faculty of Basic Sciences, Islamic Azad University, Zanjan Branch, Zanjan, Iran
| | - Kheirollah Yari
- Medical Biology Research Center, Kermanshah University of Medical Sciences, Daneshgah Avenue, Kermanshah, Iran.
- Zagros Bioidea Co., Razi University Incubator, Kermanshah, Iran.
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Comprehensive analysis of interleukin-8 gene polymorphisms and periodontitis susceptibility. Oncotarget 2018; 8:48996-49004. [PMID: 28446725 PMCID: PMC5564743 DOI: 10.18632/oncotarget.16922] [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: 02/14/2017] [Accepted: 03/09/2017] [Indexed: 12/18/2022] Open
Abstract
Background Associations between interleukin-8 (IL-8) gene polymorphisms and periodontitis susceptibility have been investigated in many published studies, but the conclusions are still inconsistent. Therefore, we performed this systematic review and meta-analysis to review which polymorphisms have been researched and to obtain a precise result of the same polymorphism from different studies. Results Finally 10 publications involving 1938 patients and 1569 controls were yielded, including 12 polymorphisms. Six studies investigated rs4073 polymorphism; two focused on rs2227306 and rs2227307; two referred to rs2227532 and T-738A; one detected rs2230054, rs1126579 and rs1126580; one inspected A2767T, T11722T2 and C1633T, and one for rs2234671 polymorphism. Of them, IL-8 C1633T and rs1126580 polymorphisms showed positive association while the other ten polymorphisms revealed negative results. Materials and methods A comprehensive literature search from PubMed, Web of Science, and Chinese National Knowledge Infrastructure was conducted for all potentially relevant studies published before January 2, 2017. Two authors selected the studies and extracted data. The pooled analysis was conducted using the RevMan 5.1 software if a polymorphism was reported by two or more studies. Conclusions Based on current evidence, the IL-8 rs4073, A2767T, T11722T2, rs2234671, rs2230054, rs1126579, rs2227306, rs2227307, rs2227532, and T-738A polymorphisms were not associated with periodontitis susceptibility; the IL-8 C1633T and rs1126580 polymorphisms were associated with increased risk of periodontitis.
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Furlan LL, Ribeiro JD, Bertuzzo CS, Salomão Junior JB, Souza DRS, Marson FAL. Variants in the interleukin 8 gene and the response to inhaled bronchodilators in cystic fibrosis. JORNAL DE PEDIATRIA (VERSÃO EM PORTUGUÊS) 2017. [DOI: 10.1016/j.jpedp.2017.07.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Variants in the interleukin 8 gene and the response to inhaled bronchodilators in cystic fibrosis. J Pediatr (Rio J) 2017; 93:639-648. [PMID: 28719800 DOI: 10.1016/j.jped.2017.03.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Revised: 03/29/2017] [Accepted: 01/09/2017] [Indexed: 01/17/2023] Open
Abstract
OBJECTIVE Interleukin 8 protein promotes inflammatory responses, even in airways. The presence of interleukin 8 gene variants causes altered inflammatory responses and possibly varied responses to inhaled bronchodilators. Thus, this study analyzed the interleukin 8 variants (rs4073, rs2227306, and rs2227307) and their association with the response to inhaled bronchodilators in cystic fibrosis patients. METHODS Analysis of interleukin 8 gene variants was performed by restriction fragment length polymorphism of polymerase chain reaction. The association between spirometry markers and the response to inhaled bronchodilators was evaluated by Mann-Whitney and Kruskal-Wallis tests. The analysis included all cystic fibrosis patients, and subsequently patients with two mutations in the cystic fibrosis transmembrane conductance regulator gene belonging to classes I to III. RESULTS This study included 186 cystic fibrosis patients. There was no association of the rs2227307 variant with the response to inhaled bronchodilators. The rs2227306 variant was associated with FEF50% in the dominant group and in the group with two identified mutations in the cystic fibrosis transmembrane conductance regulator gene. The rs4073 variant was associated with spirometry markers in four genetic models: co-dominant (FEF25-75% and FEF75%), dominant (FEV1, FEF50%, FEF75%, and FEF25-75%), recessive (FEF75% and FEF25-75%), and over-dominant (FEV1/FVC). CONCLUSIONS This study highlighted the importance of the rs4073 variant of the interleukin 8 gene, regarding response to inhaled bronchodilators, and of the assessment of mutations in the cystic fibrosis transmembrane conductance regulator gene.
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Cirelli T, Finoti LS, Corbi SCT, Anovazzi G, Nepomuceno R, Orrico SRP, Cirelli JA, Mayer MPA, Scarel-Caminaga RM. Absolute quantification of Aggregatibacter actinomycetemcomitans in patients carrying haplotypes associated with susceptibility to chronic periodontitis: multifaceted evaluation with periodontitis covariants. Pathog Dis 2017; 75:4056145. [DOI: 10.1093/femspd/ftx092] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2017] [Accepted: 07/27/2017] [Indexed: 11/14/2022] Open
Affiliation(s)
- Thamiris Cirelli
- Department of Morphology, São Paulo State University (UNESP), School of Dentistry, 14801903 Araraquara, SP, Brazil
- Department of Oral Diagnosis and Surgery, São Paulo State University (UNESP), School of Dentistry, 14801903 Araraquara, SP, Brazil
| | - Livia S. Finoti
- Department of Morphology, São Paulo State University (UNESP), School of Dentistry, 14801903 Araraquara, SP, Brazil
- Department of Oral Diagnosis and Surgery, São Paulo State University (UNESP), School of Dentistry, 14801903 Araraquara, SP, Brazil
| | - Sâmia C. T. Corbi
- Department of Morphology, São Paulo State University (UNESP), School of Dentistry, 14801903 Araraquara, SP, Brazil
- Department of Oral Diagnosis and Surgery, São Paulo State University (UNESP), School of Dentistry, 14801903 Araraquara, SP, Brazil
| | - Giovana Anovazzi
- Department of Morphology, São Paulo State University (UNESP), School of Dentistry, 14801903 Araraquara, SP, Brazil
- Department of Oral Diagnosis and Surgery, São Paulo State University (UNESP), School of Dentistry, 14801903 Araraquara, SP, Brazil
| | - Rafael Nepomuceno
- Department of Morphology, São Paulo State University (UNESP), School of Dentistry, 14801903 Araraquara, SP, Brazil
- Department of Oral Diagnosis and Surgery, São Paulo State University (UNESP), School of Dentistry, 14801903 Araraquara, SP, Brazil
| | - Silvana R. P. Orrico
- Department of Oral Diagnosis and Surgery, São Paulo State University (UNESP), School of Dentistry, 14801903 Araraquara, SP, Brazil
| | - Joni A. Cirelli
- Department of Oral Diagnosis and Surgery, São Paulo State University (UNESP), School of Dentistry, 14801903 Araraquara, SP, Brazil
| | - Márcia P. A. Mayer
- Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo (USP), CEP 05508-900, São Paulo, SP, Brazil
| | - Raquel M. Scarel-Caminaga
- Department of Morphology, São Paulo State University (UNESP), School of Dentistry, 14801903 Araraquara, SP, Brazil
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Dakal TC, Kala D, Dhiman G, Yadav V, Krokhotin A, Dokholyan NV. Predicting the functional consequences of non-synonymous single nucleotide polymorphisms in IL8 gene. Sci Rep 2017; 7:6525. [PMID: 28747718 PMCID: PMC5529537 DOI: 10.1038/s41598-017-06575-4] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2016] [Accepted: 06/14/2017] [Indexed: 01/19/2023] Open
Abstract
Here we report an in-silico approach for identification, characterization and validation of deleterious non-synonymous SNPs (nsSNPs) in the interleukin-8 gene using three steps. In first step, sequence homology-based genetic analysis of a set of 50 coding SNPs associated with 41 rsIDs using SIFT (Sorting Intolerant from Tolerant) and PROVEAN (Protein Variation Effect Analyzer) identified 23 nsSNPs to be putatively damaging/deleterious in at least one of the two tools used. Subsequently, structure-homology based PolyPhen-2 (Polymorphism Phenotyping) analysis predicted 9 of 23 nsSNPs (K4T, E31A, E31K, S41Y, I55N, P59L, P59S, L70P and V88D) to be damaging. According to the conditional hypothesis for the study, only nsSNPs that score damaging/deleterious prediction in both sequence and structural homology-based approach will be considered as 'high-confidence' nsSNPs. In step 2, based on conservation of amino acid residues, stability analysis, structural superimposition, RSMD and docking analysis, the possible structural-functional relationship was ascertained for high-confidence nsSNPs. Finally, in a separate analysis (step 3), the IL-8 deregulation has also appeared to be an important prognostic marker for detection of patients with gastric and lung cancer. This study, for the first time, provided in-depth insights on the effects of amino acid substitutions on IL-8 protein structure, function and disease association.
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Affiliation(s)
- Tikam Chand Dakal
- Department of Biosciences, Manipal University Jaipur, Dehmi Kalan, Off Jaipur-Ajmer Expressway, Jaipur, 303007, Rajasthan, India.
| | - Deepak Kala
- University Institute of Biopharma Sciences, Chandigarh University, Mohali, 140413, Punjab, India
| | - Gourav Dhiman
- University Institute of Biopharma Sciences, Chandigarh University, Mohali, 140413, Punjab, India
| | - Vinod Yadav
- Department of Microbiology, Central University of Haryana, Mahendergarh, 123029, Haryana, India
| | - Andrey Krokhotin
- Department of Biochemistry and Biophysics, University of North Carolina, Chapel Hill, NC, 27599, USA
| | - Nikolay V Dokholyan
- Department of Biochemistry and Biophysics, University of North Carolina, Chapel Hill, NC, 27599, USA
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Inducible Nitric Oxide Synthase Polymorphisms and Nitric Oxide Levels in Individuals with Chronic Periodontitis. Int J Mol Sci 2017; 18:ijms18061128. [PMID: 28617311 PMCID: PMC5485952 DOI: 10.3390/ijms18061128] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Revised: 05/17/2017] [Accepted: 05/20/2017] [Indexed: 12/27/2022] Open
Abstract
This study aimed to investigate whether the -1026(A>C)(rs2779249) and +2087(A>G)(2297518) polymorphisms in the NOS2 gene were associated with chronic periodontitis (CP) and with salivary levels of nitrite (NO₂-) and/or nitrate + nitrite (NOx). A group of 113 mixed-race patients were subjected to periodontal, genetic, and biochemical evaluations (65 CP/48 periodontally healthy subjects). DNA was extracted from oral epithelial cells and used for genotyping by polymerase chain reaction (real-time). Salivary NOx concentrations were determined using an ozone-based chemiluminescence assay. Association of CP with alleles and genotypes of the -1026(A>C) polymorphism was found (X² test, p = 0.0075; 0.0308), but this was not maintained after multiple logistic regression, performed to estimate the effect of covariates and polymorphisms in CP. This analysis demonstrated, after correction for multiple comparisons, that only the female gender was significantly associated with CP. Polymorphisms analyzed as haplotypes were not associated with CP. NOx levels were significantly higher in the control group of heterozygous individuals for both polymorphisms. In conclusion, the female gender was significantly associated with CP, and higher levels of salivary NOx were found in control subjects and associated with the heterozygous state of the NOS2 polymorphisms, reinforcing the potential of NO metabolites as markers of periodontitis status.
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Investigation of the functional role of human Interleukin-8 gene haplotypes by CRISPR/Cas9 mediated genome editing. Sci Rep 2016; 6:31180. [PMID: 27499075 PMCID: PMC4976357 DOI: 10.1038/srep31180] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2016] [Accepted: 07/13/2016] [Indexed: 12/18/2022] Open
Abstract
Interleukin-8 (IL-8) gene polymorphisms have been considered as susceptibility factors in periodontal disease. However, the functional roles of IL-8 gene haplotypes have not been investigated. Here, we demonstrate for the first time the use of the CRISPR/Cas9 system to engineer the IL-8 gene, and tested the functionality of different haplotypes. Two sgRNAs vectors targeting the IL-8 gene and the naked homologous repair DNA carrying different haplotypes were used to successfully generate HEK293T cells carrying the AT genotype at the first SNP - rs4073 (alias -251), TT genotype at the second SNP - rs2227307 (alias +396), TC or CC genotypes at the third SNP - rs2227306 (alias +781) at the IL-8 locus. When stimulated with Poly I:C, ATC/TTC haplotype, cells significantly up-regulated the IL-8 at both transcriptional and translational levels. To test whether ATC/TTC haplotype is functional, we used a trans-well assay to measure the transmigration of primary neutrophils incubated with supernatants from the Poly I:C stimulation experiment. ATC/TTC haplotype cells significantly increased transmigration of neutrophils confirming the functional role for this IL-8 haplotype. Taken together, our data provides evidence that carriage of the ATC/TTC haplotype in itself may increase the influx of neutrophils in inflammatory lesions and influence disease susceptibility.
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Furlan LL, Marson FAL, Ribeiro JD, Bertuzzo CS, Salomão Junior JB, Souza DRS. IL8 gene as modifier of cystic fibrosis: unraveling the factors which influence clinical variability. Hum Genet 2016; 135:881-94. [PMID: 27209008 DOI: 10.1007/s00439-016-1684-4] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Accepted: 05/14/2016] [Indexed: 12/31/2022]
Abstract
The severity of cystic fibrosis (CF) is associated with classes of mutations in the CFTR gene (cystic fibrosis transmembrane regulator), physical environment and modifier genes interaction. The IL8 gene (interleukin 8), according to its respective polymorphisms, influences inflammatory responses. This study analyzed IL8 gene polymorphisms (rs4073, rs2227306 and rs2227307), by means of PCR/RFLP, and their association with pulmonary function markers and clinical severity scores in 186 patients with CF, considering the CFTR genotype. There was an association between rs2227307 and precocity of the disease. The severity of lung disease was associated with the following markers: transcutaneous arterial hemoglobin oxygen saturation (SaO2) (regardless of CFTR genotype, for the polymorphisms rs4073, rs2227306 and rs2227307); mucoid Pseudomonas aeruginosa (regardless of CFTR genotype, for the polymorphisms rs2227306 and rs2227307). Pulmonary function markers (SaO2 and spirometric variables) and clinical severity scores were also associated with IL8 gene polymorphisms. This study identified the IL8 gene, represented by rs4073 and rs2227306 polymorphisms, and particularly the rs2227307 polymorphism, as potentiating factors for the degree of variability in the severity of CF, especially in pulmonary clinical manifestation correlated with increased morbidity and mortality.
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Affiliation(s)
- Larissa Lazzarini Furlan
- Medical School of São José do Rio Preto, Avenida Brigadeiro Faria Lima, 5416, Vila São José, São José do Rio Preto, São Paulo, CEP 15090-000, Brazil
| | - Fernando Augusto Lima Marson
- Department of Medical Genetics, School of Medical Sciences, University of Campinas, Rua Tessália Vieira de Camargo, 126, Cidade Universitária Zeferino Vaz, Campinas, São Paulo, CEP 13083-887, Brazil.
- Department of Pediatrics, School of Medical Sciences, University of Campinas, Rua Tessália Vieira de Camargo, 126, Cidade Universitária Zeferino Vaz, Campinas, São Paulo, CEP 13083-887, Brazil.
| | - José Dirceu Ribeiro
- Department of Pediatrics, School of Medical Sciences, University of Campinas, Rua Tessália Vieira de Camargo, 126, Cidade Universitária Zeferino Vaz, Campinas, São Paulo, CEP 13083-887, Brazil
| | - Carmen Sílvia Bertuzzo
- Department of Medical Genetics, School of Medical Sciences, University of Campinas, Rua Tessália Vieira de Camargo, 126, Cidade Universitária Zeferino Vaz, Campinas, São Paulo, CEP 13083-887, Brazil
| | - João Batista Salomão Junior
- Department of Pediatrics and Department of Pediatrics Pneumology, University Hospital, Medical School of São José do Rio Preto, Avenida Brigadeiro Faria Lima, 5416, Vila São José, São José do Rio Preto, São Paulo, CEP 15090-000, Brazil
| | - Dorotéia Rossi Silva Souza
- Department of Molecular Biology, Research Center for Biochemistry and Molecular Biology, Medical School of São José do Rio Preto, Avenida Brigadeiro Faria Lima, 5416, Vila São José, São José do Rio Preto, São Paulo, CEP 15090-000, Brazil
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Atalay A, Arıkan S, Ozturk O, Öncü M, Tasli ML, Duygulu S, Atalay EO. The IL-8 Gene Polymorphisms in Behçet's Disease Observed in Denizli Province of Turkey. Immunol Invest 2016; 45:298-311. [PMID: 27101127 DOI: 10.3109/08820139.2016.1153652] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Behçet's disease is a multisystemic inflammatory disorder as a triad of symptoms including recurrent oral and genital aphthous ulceration and uveitis with unknown pathogenesis. IL-8, a proinflammatory cytokine, has been found increased in the active stage of BD. DNA samples were obtained from 88 patients with BD and 112 healthy control subjects in Denizli province of Turkey. All genotyping experiments of SNPs in IL-8 gene were performed using polymerase chain reaction-restriction fragment polymorphism. We found that IL-8 -845 T > C and -738 T > A sites are non-polymorphic. There were no differences in the polymorphisms of IL-8 +396 G/T, +781 C/T, and +1633 C/T sites except IL-8 -251 T > A in between patients and healthy controls. Analysis of IL-8 polymorphisms indicates that the distribution of frequencies seems to be associated with -251 T > A and gender, -251 T > A and erythema nodosum, -251 T > A and ocular involvement, +781 C > T and erythema nodosum, +396 G > T and pathergy positivity, and +1633 C > T and papulopustular lesion. We demonstrated that the frequencies of IL-8 haplotypes were significantly different with BD patients than control group. We found that the distribution of IL-8 haplotypes was significantly different with genital ulcers, ocular involvement, positive pathergy test, erythema nodosum, papulopustular lesions, and arthritis with BD patients than healthy control individuals. Our study suggests that IL-8 gene polymorphisms may affect susceptibility to BD and increase the risk of developing disease. In order to confirm and assess the association of IL-8 and other cytokine gene polymorphisms in the pathophysiology of BD, large cohort studies are needed.
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Affiliation(s)
- Ayfer Atalay
- a Department of Biophysics, Faculty of Medicine , Pamukkale University , Denizli , Turkey
| | - Sanem Arıkan
- a Department of Biophysics, Faculty of Medicine , Pamukkale University , Denizli , Turkey
| | - Onur Ozturk
- b Department of Biophysics, Medical Faculty , Inonu University , Malatya , Turkey
| | - Mustafa Öncü
- c Department of Dermatology, Faculty of Medicine , Pamukkale University , Denizli , Turkey
| | - Mehmet Levent Tasli
- c Department of Dermatology, Faculty of Medicine , Pamukkale University , Denizli , Turkey
| | - Seniz Duygulu
- c Department of Dermatology, Faculty of Medicine , Pamukkale University , Denizli , Turkey
| | - Erol Omer Atalay
- a Department of Biophysics, Faculty of Medicine , Pamukkale University , Denizli , Turkey
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SILVEIRA VRS, PIGOSSI SC, SCAREL-CAMINAGA RM, CIRELLI JA, RÊGO R, NOGUEIRA NAP. Analysis of polymorphisms in Interleukin 10, NOS2A, and ESR2 genes in chronic and aggressive periodontitis. Braz Oral Res 2016; 30:e105. [DOI: 10.1590/1807-3107bor-2016.vol30.0105] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2015] [Accepted: 07/08/2016] [Indexed: 11/22/2022] Open
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Chatzopoulos GS, Doufexi AE, Kalogirou F. Association of susceptible genotypes to periodontal disease with the clinical outcome and tooth survival after non-surgical periodontal therapy: A systematic review and meta-analysis. Med Oral Patol Oral Cir Bucal 2016; 21:e14-29. [PMID: 26595831 PMCID: PMC4765745 DOI: 10.4317/medoral.20638] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2015] [Accepted: 09/06/2015] [Indexed: 11/15/2022] Open
Abstract
Background The real clinical utility of genetic testing is the prognostic value of genetic factors in the clinical outcome of periodontal treatment and the tooth survival. A meta-analysis was undertaken to estimate the effect of a susceptible genotype to periodontitis on the clinical outcomes of non-surgical periodontal therapy and the tooth survival. Material and Methods A systematic search of MEDLINE-Pubmed, Cochrane Library and Scopus was performed. Additionally, a hand search was done in three journals. No specific language restriction was applied. Two reviewers screened independently titles and abstracts or full text copies. Quality assessment of all the included studies was held. Results Initial screening of electronic databases resulted in 283 articles. Ten studies met the inclusion criteria, nine of them examined the clinical outcome, while the other one investigated the tooth survival in susceptible individuals after non-surgical periodontal therapy. Eight of included studies were selected for the meta-analysis. IL-1 positive genotypes increase the risk of tooth loss, while no association found between the bleeding on probing (BOP), clinical attachment loss (CAL) and plaque index (PI) with the genotype status. Probing pocket depth (PPD) reduction in the first three months and in long-term results found to have a significant association with the genotype. Conclusions There is no difference in the clinical measurements after non-surgical periodontal treatment, apart from PPD. More publications are needed to identify a cause-effect relationship. Key words:Periodontal disease, periodontitis, periodontal therapy, clinical outcome, tooth loss, susceptibility, polymorphism, genotype, meta-analysis, systematic review.
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Affiliation(s)
- Georgios-Sokratis Chatzopoulos
- Advanced Education Program in Periodontology, University of Minnesota, 515 Delaware Street SE, Minneapolis, MN 55455, USA,
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Polymorphisms in Host Immunity-Modulating Genes and Risk of Invasive Aspergillosis: Results from the AspBIOmics Consortium. Infect Immun 2015; 84:643-57. [PMID: 26667837 DOI: 10.1128/iai.01359-15] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2015] [Accepted: 12/05/2015] [Indexed: 01/04/2023] Open
Abstract
Recent studies suggest that immune-modulating single-nucleotide polymorphisms (SNPs) influence the risk of developing cancer-related infections. Here, we evaluated whether 36 SNPs within 14 immune-related genes are associated with the risk of invasive aspergillosis (IA) and whether genotyping of these variants might improve disease risk prediction. We conducted a case-control association study of 781 immunocompromised patients, 149 of whom were diagnosed with IA. Association analysis showed that the IL4Rrs2107356 and IL8rs2227307 SNPs (using dbSNP numbering) were associated with an increased risk of IA (IL4Rrs2107356 odds ratio [OR], 1.92; 95% confidence interval [CI], 1.20 to 3.09; IL8rs2227307 OR, 1.73; 95% CI, 1.06 to 2.81), whereas the IL12Brs3212227 and IFNγrs2069705 variants were significantly associated with a decreased risk of developing the infection (IL12Brs3212227 OR, 0.60; 95% CI, 0.38 to 0.96; IFNγrs2069705 OR, 0.63; 95% CI, 0.41 to 0.97). An allogeneic hematopoietic stem cell transplantation (allo-HSCT)-stratified analysis revealed that the effect observed for the IL4Rrs2107356 and IFNγrs2069705 SNPs was stronger in allo-HSCT (IL4Rrs2107356 OR, 5.63; 95% CI, 1.20 to 3.09; IFNγrs2069705 OR, 0.24; 95% CI, 0.10 to 0.59) than in non-HSCT patients, suggesting that the presence of these SNPs renders patients more vulnerable to infection, especially under severe and prolonged immunosuppressive conditions. Importantly, in vitro studies revealed that carriers of the IFNγrs2069705C allele showed a significantly increased macrophage-mediated neutralization of fungal conidia (P = 0.0003) and, under stimulation conditions, produced higher levels of gamma interferon (IFNγ) mRNA (P = 0.049) and IFNγ and tumor necrosis factor alpha (TNF-α) cytokines (P value for 96 h of treatment with lipopolysaccharide [PLPS-96 h], 0.057; P value for 96 h of treatment with phytohemagglutinin [PPHA-96 h], 0.036; PLPS+PHA-96 h = 0.030; PPHA-72 h = 0.045; PLPS+PHA-72 h = 0.018; PLPS-96 h = 0.058; PLPS+PHA-96 h = 0.0058). Finally, we also observed that the addition of SNPs significantly associated with IA to a model including clinical variables led to a substantial improvement in the discriminatory ability to predict disease (area under the concentration-time curve [AUC] of 0.659 versus AUC of 0.564; P-2 log likehood ratio test = 5.2 · 10(-4) and P50.000 permutation test = 9.34 · 10(-5)). These findings suggest that the IFNγrs2069705 SNP influences the risk of IA and that predictive models built with IFNγ, IL8, IL12p70, and VEGFA variants can used to predict disease risk and to implement risk-adapted prophylaxis or diagnostic strategies.
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Zhang N, Xu Y, Zhang B, Zhang T, Yang H, Zhang B, Feng Z, Zhong D. Analysis of interleukin-8 gene variants reveals their relative importance as genetic susceptibility factors for chronic periodontitis in the Han population. PLoS One 2014; 9:e104436. [PMID: 25101955 PMCID: PMC4125212 DOI: 10.1371/journal.pone.0104436] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2013] [Accepted: 07/14/2014] [Indexed: 01/24/2023] Open
Abstract
Interleukin (IL)-8, an important chemokine that regulates the inflammatory response, plays an important role in periodontitis. Previous studies indicate that certain IL-8 gene polymorphisms are associated with periodontitis susceptibility in some populations. However, the literature is somewhat contradictory, and not all IL-8 polymorphisms have been examined, particularly in Han Chinese individuals. The aim of this study was to investigate the association of every IL-8 SNP with chronic periodontitis in Han Chinese individuals. We analyzed 23 SNPs with minor allele frequency (MAF)≥0.01, which were selected from 219 SNPs in the NCBI dbSNP and preliminary HapMap data analyses from a cohort of 400 cases and 750 controls from genetically independent Han Chinese individuals. Single SNP, haplotype and gender-specific associations were performed. We found that rs4073 and rs2227307 were significantly associated with chronic periodontitis. Further haplotype analysis indicated that a haplotype block (rs4073-rs2227307-rs2227306) that spans the promoter and exon1 of IL-8 was highly associated with chronic periodontitis. Additionally, the ATC haplotype in this block was increased 1.5-fold in these cases. However, when analyzing the samples by gender, no significant gender-specific associations in IL-8 were observed, similar to the results of haplotype association analyses in female and male subgroups. Our results provide further evidence that IL-8 is associated with chronic periodontitis in Han Chinese individuals. Furthermore, our results confirm previous reports suggesting the intriguing possibilities that IL-8 plays a role in the pathogenesis of chronic periodontitis and that this gene may be involved in the etiology of this condition.
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Affiliation(s)
- Nan Zhang
- Department of Dentistry, the First Affiliated Hospital, College of Medicine, Xi'an Jiaotong University, Xi'an, China
- * E-mail:
| | - Yuehong Xu
- Key Laboratory of Environment and Genes Related to Diseases, College of Medicine, Xi'an Jiaotong University, Xi'an, China
| | - Bo Zhang
- School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, China
| | - Tianxiao Zhang
- Department of Psychiatry, Washington University in Saint Louis, Saint Louis, Missouri, United States of America
| | - Haojie Yang
- The Second Department of Orthopedics, the Second Affiliated Hospital, College of Medicine, Xi'an Jiaotong University, Xi'an, China
| | - Bao Zhang
- Key Laboratory of National Ministry of Health for Forensic Sciences, College of Medicine, Xi'an Jiaotong University, Xi'an, China
| | - Zufei Feng
- Key Laboratory of National Ministry of Health for Forensic Sciences, College of Medicine, Xi'an Jiaotong University, Xi'an, China
| | - Dexing Zhong
- School of Electronic and Information Engineering, Xi'an Jiaotong University, Xi'an, China
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Tang YJ, Wang JL, Nong LG, Lan CG, Zha ZG, Liao PH. Associations of IL-27 polymorphisms and serum IL-27p28 levels with osteosarcoma risk. Medicine (Baltimore) 2014; 93:e56. [PMID: 25170932 PMCID: PMC4616331 DOI: 10.1097/md.0000000000000056] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Interleukin (IL)-27 is a novel cytokine secreted by stimulation of antigen-presenting cells. No previous studies currently reported the role of IL-27 in the carcinogenesis of osteosarcoma. We aimed to investigate the association of IL-27 polymorphisms and serum IL-27p28 with osteosarcoma risk in a Chinese population.One hundred and sixty osteosarcoma patients and 250 health controls were selected. IL-27 gene -964 A/G, 2905 T/G, and 4730 T/C polymorphisms were determined by using polymerase chain reaction-restriction fragment length polymorphism. Enzyme-linked immunosorbent assay were used to detect serum IL-27p28 levels.The serum IL-27p28 levels were significantly lower in osteosarcoma patients compared with those in controls (P < 0.01). Serum IL-27p28 levels in stages III-IV were lower than those in stages I-II of osteosarcoma (P < 0.05); similar results were also found in patients with metastasis, that is, patients with metastasis have higher IL-27p28 levels than those without metastasis (P < 0.05). There were no associations between genotype and allele frequencies of IL-27 -964 A/G, 2905 T/G, 4730 T/C, and the risk of osteosarcoma (P > 0.05). Stratification analysis also failed to show the associations between -964 A/G, 2905 T/G, and 4730 T/C polymorphisms and the clinical stage and metastasis of osteosarcoma (P > 0.05). Three possible haplotypes (ATT, GTT, and GGC) were identified, but no associations were found between them and the osteosarcoma risk (P > 0.05).This study indicates that the lower serum IL-27p28 levels may be associated with development and progression of osteosarcoma, but IL-27 gene -964 A/G, 2905 T/G, and 4730 T/C polymorphisms and their haplotypes are not associated with osteosarcoma risk.
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Affiliation(s)
- Yu-Jin Tang
- First Affiliated Hospital of Jinan University, Guangzhou (Y-JT, Z-GZ, P-HL); Center of Clinical Laboratory (Y-JT, C-GL, P-HL); and Affiliated Hospital of Youjiang Medical College for Nationalities (J-LW, L-GN), Baise, Guangxi, China
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Wang JL, Nong LG, Wei YS, Tang YJ, Wang JC, Wang CF. Association of interleukin-8 gene polymorphisms with the risk of hepatocellular carcinoma. Mol Biol Rep 2014; 41:1483-9. [PMID: 24381110 DOI: 10.1007/s11033-013-2993-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2013] [Accepted: 12/24/2013] [Indexed: 01/29/2023]
Abstract
Interleukin-8 (IL8) polymorphisms have been implicated in several cancers, but their roles in the pathogenesis of hepatocellular carcinoma (HCC) are largely unknown. The present study was designed to explore the association between IL8 polymorphism and the risk of HCC in a Chinese population. Four single nucleotide polymorphisms (SNPs) of the IL8 gene -251A/T, +781C/T, -353A/T and +678T/C were analyzed in 205 HCC patients and 208 healthy controls in a Chinese population. Serum levels of IL8 were detected in HCC patients and healthy controls. The association between IL8 polymorphisms and HCC risk was measured using the adjusted odds ratios (OR) and their 95% confidence intervals (CI) from multiple logistic regression analysis. Haplotype analysis and gene-environment interaction analysis was also performed. The serum level of IL8 was significantly higher in HCC patients compared with healthy controls (P < 0.001). After adjusting for confounding factors, no significant associations were found between -251A/T, +781C/T, -353A/T and +678T/C and HCC risk (all P > 0.05). Haplotype analysis showed that A(251)-C(781)-A(353)-C(678) conferred decreased risk of HCC onset (adjusted OR 0.31, 95% CI 0.13-0.77). No significant interaction effects were found between the four SNPs and HBV infection, cirrhosis, gender smoking and alcohol consumption (all P > 0.05). No association between -251A/T, +781C/T, -353A/T and +678T/C of the IL8 gene and the risk of HCC was found in this Chinese population, and the SNPs did not display any interaction with several environmental factors with regard to HCC risk. However, it appears that A(251)-C(781)-A(353)-C(678) is perhaps a protective haplotype for HCC.
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Affiliation(s)
- Jun-li Wang
- Center of Clinical Laboratory, Affiliated Hospital of Youjiang Medical College for Nationalities, Baise, 533000, Guangxi, China
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Haplotype analysis of interleukin-8 gene polymorphisms in chronic and aggressive periodontitis. Mediators Inflamm 2013; 2013:342351. [PMID: 24368875 PMCID: PMC3866791 DOI: 10.1155/2013/342351] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2013] [Revised: 10/09/2013] [Accepted: 11/04/2013] [Indexed: 12/20/2022] Open
Abstract
Objectives. Periodontitis is an inflammatory disease characterized by connective tissue loss and alveolar bone destruction. Interleukin-8 (IL8) is important in the regulation of the immune response. The aim of this study was to analyze four polymorphisms in the IL8 gene in relation to chronic (CP) and aggressive (AgP) periodontitis. Methods. A total of 492 unrelated subjects were included in this case-control association study. Genomic DNA of 278 patients with CP, 58 patients with AgP, and 156 controls were genotyped, using the 5′ nuclease TaqMan assay, for IL8 (rs4073, rs2227307, rs2227306, and rs2227532) gene polymorphisms. Subgingival bacterial colonization was investigated by the DNA-microarray detection kit in a subgroup of subjects (N = 247). Results. Allele and genotype frequencies of all investigated IL8 polymorphisms were not significantly different between the subjects with CP and/or AgP and controls (P > 0.05). Nevertheless, the A(−251)/T(+396)/T(+781) and T(−251)/G(+396)/C(+781) haplotypes were significantly less frequent in patients with CP (2.0% versus 5.1%, P < 0.02, OR = 0.34, 95% CI: 0.15–0.78, resp., 2.0% versus 4.5%, P < 0.05, OR = 0.41, 95% CI: 0.18–0.97) than in controls. Conclusions. Although none of the investigated SNPs in the IL8 gene was individually associated with periodontitis, some haplotypes can be protective against CP in the Czech population.
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Interleukin 4 haplotypes of susceptibility to chronic periodontitis are associated with IL-4 protein levels but not with clinical outcomes of periodontal therapy. Hum Immunol 2013; 74:1688-95. [DOI: 10.1016/j.humimm.2013.08.286] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2013] [Revised: 07/09/2013] [Accepted: 08/20/2013] [Indexed: 11/21/2022]
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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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Ianni M, Bruzzesi G, Pugliese D, Porcellini E, Carbone I, Schiavone A, Licastro F. Variations in inflammatory genes are associated with periodontitis. IMMUNITY & AGEING 2013; 10:39. [PMID: 24274085 PMCID: PMC3850543 DOI: 10.1186/1742-4933-10-39] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 05/31/2013] [Accepted: 09/17/2013] [Indexed: 11/10/2022]
Abstract
BACKGROUND Periodontitis is a multi-factorial disease and several risk-factors such as infections, inflammatory responses, oral hygiene, smoke, aging and individual predisposition are involved in the disease. Pathogens trigger chronic inflammation with cytokines release which in turn leads to the destruction of the connective and the teeth supporting bone. The identification of genetic factors controlling oral inflammation may increase our understanding of genetic predisposition to periodontitis.Single nucleotide polymorphisms in the promoter region of Vascular Endothelial Growth Factor, Alpha-1-Antichymotripsin, hydroxy-methyl-glutaryl CoA reductase, Interferon alpha, Interleukin-1 Beta, Interleukin 10, Interleukin 6 and Tumor Necrosis Factor- alpha genes from a case/control study were investigated. RESULTS The C allele of Vascular Endothelial Growth Factor, A allele of Interleukin 10 and GG genotype of Tumor Necrosis Factor-α were individually associated with chronic periodontitis. However, the concomitant presence of the three genetic markers in the same subjects appeared to play a synergistic role and increased several folds the risk of the disease. CONCLUSIONS Our findings offer new tools to implement the screening of unaffected subjects with an increased susceptibility of periodontitis and increase our understanding regarding the genetic inflammatory background related to familiarity of the disease.
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Affiliation(s)
- Manuela Ianni
- Department of Experimental Diagnostic and Specialty Medicine, University of Bologna, Via San Giacomo 14, Bologna 40126, Italy.
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Corbi SCT, Finoti LS, Anovazzi G, Tanaka MH, Kim YJ, Secolin R, Marcaccini AM, Gerlach RF, Orrico SRP, Cirelli JA, Scarel-Caminaga RM. Clinical outcomes of periodontal therapy are not influenced by the ATC/TTC haplotype in the IL8 gene. J Periodontal Res 2013; 49:489-98. [PMID: 24033189 DOI: 10.1111/jre.12128] [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] [Accepted: 07/12/2013] [Indexed: 11/28/2022]
Abstract
BACKGROUND AND OBJECTIVE Although chronic periodontitis (CP) is a multifactorial condition, few studies have investigated the potential association of gene variants with the outcome of periodontal therapy. In a previous study, we reported that variants in the interleukin-8 (IL8) gene were associated with CP in a Brazilian population. The aim of this nonrandomized study was to investigate whether genetic susceptibility to CP, conferred by the presence of the IL8 ATC/TTC haplotype, influences the clinical outcomes of nonsurgical periodontal therapy and the IL-8 protein levels in the gingival crevicular fluid. MATERIAL AND METHODS Forty-one individuals were grouped according to the presence (susceptible to CP; n = 21) or absence (not susceptible to CP; n = 20) of the IL8 ATC/TTC haplotype. These individuals received nonsurgical periodontal therapy from one periodontist, who was blinded to the genetic status of each patient, and follow up continued for 45 d. The clinical parameters and gingival crevicular fluid samples were collected at baseline and on day 45. The IL-8 levels were determined by an ELISA. The data were subjected to the Mann-Whitney U-test, Wilcoxon and Spearman tests and to multiple logistic-regression analysis. RESULTS No significant differences between patients with or without the IL8 ATC/TTC haplotype were found for the outcome of nonsurgical periodontal therapy and IL-8 levels. The multiple logistic-regression analysis did not show a statistically significant association between the IL8 haplotype and the variables studied. CONCLUSION In this longitudinal clinical study, we observed that neither the outcome of nonsurgical periodontal therapy nor the IL-8 levels were influenced by the IL8 ATC/TTC CP-susceptibility haplotype. Additional studies of CP patients from other ethnic populations are necessary to confirm these results.
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Affiliation(s)
- S C T Corbi
- Department of Diagnosis and Surgery, School of Dentistry at Araraquara, UNESP- Univ Estadual Paulista, Araraquara, SP, Brazil
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Finoti LS, Corbi SCT, Anovazzi G, Teixeira SRL, Steffens JP, Secolin R, Kim YJ, Orrico SRP, Cirelli JA, Mayer MPA, Scarel-Caminaga RM. Association between IL8 haplotypes and pathogen levels in chronic periodontitis. Eur J Clin Microbiol Infect Dis 2013; 32:1333-40. [PMID: 23660697 DOI: 10.1007/s10096-013-1884-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2013] [Accepted: 04/09/2013] [Indexed: 12/15/2022]
Abstract
Chronic periodontitis (CP) is considered to be a multifactorial disease influenced by microbial and genetic factors. The aim of the present study was to investigate whether the genetic susceptibility to CP in individuals with the IL8 ATC/TTC haplotype is associated with subgingival levels of periodontopathogens. Sixty-five individuals, grouped according to the presence (n = 28) or absence (n = 37) of the IL8 haplotype, were evaluated. After clinical periodontal evaluation, each group was subdivided according to the presence (CP) or absence (H) of periodontitis. Four subgingival samples were obtained from CP and two samples per subject from H patients. The levels and proportions of Porphyromonas gingivalis, Tannerella forsythia, and Treponema denticola were analyzed using quantitative real-time polymerase chain reaction (q-PCR). No differences were found in the proportion of periodontopathogenic bacteria between groups with the presence or absence of the IL8 haplotype. However, in the CP groups, the levels of periodontopathogens were significantly higher in the individuals without the IL8 haplotype than in the individuals with the IL8 haplotype. These results suggest that periodontal destruction may occur in patients who are considered to be genetically susceptible to CP with a lower microbial challenge because of the presence of the IL8 ATC/TTC haplotype than in patients without this haplotype.
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Affiliation(s)
- L S Finoti
- Department of Oral Diagnosis and Surgery, School of Dentistry at Araraquara, UNESP, Universidade Estadual Paulista, Araraquara, SP, Brazil
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Haplotypes of susceptibility to chronic periodontitis in the Interleukin 8 gene do not influence protein level in the gingival crevicular fluid. Arch Oral Biol 2012; 57:1355-61. [PMID: 22877792 DOI: 10.1016/j.archoralbio.2012.07.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2011] [Revised: 07/06/2012] [Accepted: 07/14/2012] [Indexed: 11/21/2022]
Abstract
OBJECTIVE Previously, we identified that the ATC/TTC haplotype formed by polymorphisms in the Interleukin-(IL)8 gene conferred susceptibility to chronic periodontitis (CP). The aim of the study was to investigate whether the IL8 haplotype ATC/TTC was associated with the volume of gingival crevicular fluid (GCF), the concentration of interleukin IL-8 in the GCF, as well as periodontal conditions in patients with CP in comparison to controls without CP. METHODS Seventy-nine individuals (CP: n=41, controls: n=38) were grouped according to the presence (susceptible for CP) or absence (not susceptible for CP) of the IL8 ATC/TTC haplotype. After periodontal clinical evaluation, they were subdivided by the presence or absence of CP. GCF was collected from each patient and the IL-8 levels were determined by ELISA. The GCF volume of each subject was measured by means of a calibrated electronic device. Comparisons of means between carriers and non-carriers of the ATC/TTC haplotype were evaluated using the Mann-Whitney test. Linear regression and stepwise linear regression analysis were used to analyse the association of the GCF volume with potential covariates and their contribution for the phenotype. RESULTS We did not find significant differences of both periodontal conditions and IL-8 concentration in the GCF of patients with the presence or absence of the IL8 ATC/TTC haplotype. However, the GCF volume was significantly higher amongst the patients affected by CP that are absent for the IL8 ATC/TTC haplotype. In addition, linear regression analysis showed a statistically significant association between GCF volume and CP, IL8 haplotype ATC/TTC and IL-8 concentration. CONCLUSIONS The IL8 haplotype of susceptibility to CP was neither associated with IL-8 cytokine levels nor with clinical periodontal parameters. Also, CP, IL8 haplotype and IL-8 concentration showed a positive association with the GCF volume levels in the studied patients.
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Letra A, Silva RM, Rylands RJ, Silveira EM, de Souza AP, Wendell SK, Garlet GP, Vieira AR. MMP3 and TIMP1 variants contribute to chronic periodontitis and may be implicated in disease progression. J Clin Periodontol 2012; 39:707-16. [PMID: 22671570 DOI: 10.1111/j.1600-051x.2012.01902.x] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/17/2012] [Indexed: 11/28/2022]
Abstract
AIM Matrix metalloproteinases (MMPs) play a key role in the tissue destruction characteristic of chronic periodontitis. The purpose of this study was to investigate the association of MMP and TIMP polymorphisms with chronic periodontitis in two populations. MATERIAL AND METHODS A total of 34 polymorphisms spanning 12 MMP and 2 TIMP genes were genotyped in 401 individuals from Brazil (99 cases with chronic periodontitis and 302 controls), and 274 individuals from the US (70 cases and 204 controls). Individuals were considered cases if presenting at least three teeth exhibiting sites of clinical attachment loss ≥ 5 mm in two different quadrants. Controls were characterized by absence of clinical attachment loss and no sites with probing depth >3 mm. MMP3 and TIMP1 mRNA expression was evaluated in healthy and diseased periodontal tissues. RESULTS TIMP1 showed association with chronic periodontitis in the Brazilian population (for rs5906435, p = 0.0004), whereas MMP3 showed association in the US population (for rs679620, p = 0.0003; and rs650108, p = 0.002) and in the Brazilian population (for rs639752, p = 0.005). MMP3 and TIMP1 mRNA expression was significantly higher in diseased tissues when compared to control tissues. CONCLUSIONS Our results further support a role for variations in MMP3 in chronic periodontitis and report a novel association with TIMP1. These genes may be considered additional candidate genes for chronic periodontitis.
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Affiliation(s)
- Ariadne Letra
- Department of Endodontics, School of Dentistry, and Pediatric Research Center, Medical School, University of Texas Health Science Center at Houston, Houston, TX 77030, USA.
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Hart R, Doherty DA, Pennell CE, Newnham IA, Newnham JP. Periodontal disease: a potential modifiable risk factor limiting conception. Hum Reprod 2012; 27:1332-42. [DOI: 10.1093/humrep/des034] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
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38
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Scarel-Caminaga RM, Curtis KMC, Renzi R, Sogumo PM, Anovazzi G, Viana AC, Kim YJ, Orrico SRP, Cirelli JA. Variation in the CXCR1 gene (IL8RA) is not associated with susceptibility to chronic periodontitis. J Negat Results Biomed 2011; 10:14. [PMID: 22051099 PMCID: PMC3229460 DOI: 10.1186/1477-5751-10-14] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2011] [Accepted: 11/03/2011] [Indexed: 11/24/2022] Open
Abstract
Background The chemokine receptor 1 CXCR-1 (or IL8R-alpha) is a specific receptor for the interleukin 8 (IL-8), which is chemoattractant for neutrophils and has an important role in the inflammatory response. The polymorphism rs2234671 at position Ex2+860G > C of the CXCR1 gene causes a conservative amino acid substitution (S276T). This single nucleotide polymorphism (SNP) seemed to be functional as it was associated with decreased lung cancer risk. Previous studies of our group found association of haplotypes in the IL8 and in the CXCR2 genes with the multifactorial disease chronic periodontitis. In this study we investigated the polymorphism rs2234671 in 395 Brazilian subjects with and without chronic periodontitis. Findings Similar distribution of the allelic and genotypic frequencies were observed between the groups (p > 0.05). Conclusions The polymorphism rs2234671 in the CXCR1 gene was not associated with the susceptibility to chronic periodontitis in the studied Brazilian population.
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Affiliation(s)
- Raquel M Scarel-Caminaga
- UNESP-São Paulo State University, School of Dentistry at Araraquara, Department of Morphology, SP, Brazil.
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