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Tegelberg P, Leppilahti JM, Ylöstalo A, Tervonen T, Kettunen J, Suominen AL, Ylöstalo P. Genome-wide association study of periodontal pocketing in Finnish adults. BMC Oral Health 2021; 21:611. [PMID: 34847907 PMCID: PMC8638186 DOI: 10.1186/s12903-021-01964-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Accepted: 11/09/2021] [Indexed: 12/30/2022] Open
Abstract
Background A genome‐wide association study is an analytical approach that investigates whether genetic variants across the whole genome contribute to disease progression. The aim of this study was to investigate genome-wide associations of periodontal condition measured as deepened periodontal pockets (≥ 4 mm) in Finnish adults. Methods This study was based on the data of the national Health 2000 Survey (BRIF8901) in Finland and the Northern Finland Birth Cohort 1966 Study totalling 3,245 individuals. The genotype data were analyzed using the SNPTEST v.2.4.1. The number of teeth with deepened periodontal pockets (≥ 4 mm deep) was employed as a continuous response variable in additive regression analyses performed separately for the two studies and the results were combined in a meta-analysis applying a fixed effects model. Results Genome-wide significant associations with the number of teeth with ≥ 4 mm deep pockets were not found at the p-level of < 5 × 10−8, while in total 17 loci reached the p-level of 5 × 10−6. Of the top hits, SNP rs4444613 in chromosome 20 showed the strongest association (p = 1.35 × 10−7). Conclusion No statistically significant genome-wide associations with deepened periodontal pockets were found in this study.
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Affiliation(s)
- Paula Tegelberg
- Research Unit of Oral Health Sciences, Faculty of Medicine, University of Oulu, Oulu, Finland
| | | | - Atte Ylöstalo
- Research Unit of Oral Health Sciences, Faculty of Medicine, University of Oulu, Oulu, Finland.,Computational Medicine, Faculty of Medicine, University of Oulu, Oulu, Finland.,Center for Life Course Health Research, Faculty of Medicine, University of Oulu, Oulu, Finland.,Biocenter Oulu, University of Oulu, Oulu, Finland
| | - Tellervo Tervonen
- Research Unit of Oral Health Sciences, Faculty of Medicine, University of Oulu, Oulu, Finland.,Medical Research Center, Oulu University Hospital and University of Oulu, Oulu, Finland
| | - Johannes Kettunen
- Computational Medicine, Faculty of Medicine, University of Oulu, Oulu, Finland.,Center for Life Course Health Research, Faculty of Medicine, University of Oulu, Oulu, Finland.,Biocenter Oulu, University of Oulu, Oulu, Finland.,National Institute for Health and Welfare, Helsinki, Finland
| | - Anna Liisa Suominen
- Institute of Dentistry, University of Eastern Finland, Kuopio, Finland.,Department of Oral and Maxillofacial Surgery, Kuopio University Hospital, Kuopio, Finland.,Department of Public Health and Welfare, National Institute for Health and Welfare, Helsinki, Finland
| | - Pekka Ylöstalo
- Research Unit of Oral Health Sciences, Faculty of Medicine, University of Oulu, Oulu, Finland.,Center for Life Course Health Research, Faculty of Medicine, University of Oulu, Oulu, Finland.,Medical Research Center, Oulu University Hospital and University of Oulu, Oulu, Finland.,Department of Oral and Maxillofacial Surgery, Oulu University Hospital, Oulu, Finland
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Hiyari S, Green E, Pan C, Lari S, Davar M, Davis R, Camargo PM, Tetradis S, Lusis AJ, Pirih FQ. Genomewide Association Study Identifies Cxcl Family Members as Partial Mediators of LPS-Induced Periodontitis. J Bone Miner Res 2018; 33:1450-1463. [PMID: 29637625 PMCID: PMC8434897 DOI: 10.1002/jbmr.3440] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Revised: 03/27/2018] [Accepted: 03/29/2018] [Indexed: 12/21/2022]
Abstract
Periodontitis (PD) is characterized by bacterial infection and inflammation of tooth-supporting structures and can lead to tooth loss. PD affects ∼47% of the US population over age 30 years and has a heritability of about 50%. Although the host immunoinflammatory response and genetic background play a role, little is known of the underlying genetic factors. We examined natural genetic variation in lipopolysaccharide (LPS)-induced PD across a panel of inbred mouse strains, the hybrid mouse diversity panel (HMDP). We observed a strain-dependent sixfold difference in LPS-induced bone loss across the HMDP with a heritability of 53%. We performed a genomewide association study (GWAS) using FAST-LMM, which corrects for population structure, and identified loci significantly associated with PD. We examined candidate genes at a locus on chromosome 5, which suggested a relationship between LPS-induced bone loss and, together with expression data, identified Cxcl family members as associated with PD. We observed an increase in Cxcl10 protein, as well as immune cells and pro-inflammatory cytokines in C57BL/6J (high bone loss strain) but not in A/J (low bone loss strain) after LPS injections. Genetic deletion of CXCR3 (Cxcl9 and10 receptor) demonstrated a ∼50% reduction in bone loss and reduced osteoclasts after LPS injections. Furthermore, WT mice treated with AMG-487 (a CXCR3 antagonist) showed a ∼45% reduction in bone loss and decreased osteoclasts after LPS injections. We conclude that CXCR3 is a strong candidate for modulating the host response in individuals susceptible to PD. © 2018 American Society for Bone and Mineral Research.
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Affiliation(s)
- Sarah Hiyari
- Section of Periodontics, University of California, Los Angeles, Los Angeles, CA, USA
| | - Elissa Green
- Section of Periodontics, University of California, Los Angeles, Los Angeles, CA, USA
| | - Calvin Pan
- Departments of Medicine, Cardiology, and Human Genetics, University of California, Los Angeles, Los Angeles, CA, USA
| | - Soma Lari
- Section of Periodontics, University of California, Los Angeles, Los Angeles, CA, USA
| | - Mina Davar
- Section of Periodontics, University of California, Los Angeles, Los Angeles, CA, USA
| | - Richard Davis
- Departments of Medicine, Cardiology, and Human Genetics, University of California, Los Angeles, Los Angeles, CA, USA
| | - Paulo M Camargo
- Section of Periodontics, University of California, Los Angeles, Los Angeles, CA, USA
| | - Sotirios Tetradis
- Section of Oral Radiology, University of California, Los Angeles, Los Angeles, CA, USA
| | - Aldons J Lusis
- Departments of Medicine, Cardiology, and Human Genetics, University of California, Los Angeles, Los Angeles, CA, USA
| | - Flavia Q Pirih
- Section of Periodontics, University of California, Los Angeles, Los Angeles, CA, USA
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Munz M, Willenborg C, Richter GM, Jockel-Schneider Y, Graetz C, Staufenbiel I, Wellmann J, Berger K, Krone B, Hoffmann P, van der Velde N, Uitterlinden AG, de Groot LCPGM, Sawalha AH, Direskeneli H, Saruhan-Direskeneli G, Guzeldemir-Akcakanat E, Keceli HG, Laudes M, Noack B, Teumer A, Holtfreter B, Kocher T, Eickholz P, Meyle J, Doerfer C, Bruckmann C, Lieb W, Franke A, Schreiber S, Nohutcu RM, Erdmann J, Loos BG, Jepsen S, Dommisch H, Schaefer AS. A genome-wide association study identifies nucleotide variants at SIGLEC5 and DEFA1A3 as risk loci for periodontitis. Hum Mol Genet 2017; 26:2577-2588. [PMID: 28449029 DOI: 10.1093/hmg/ddx151] [Citation(s) in RCA: 73] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Accepted: 04/12/2017] [Indexed: 01/26/2023] Open
Abstract
Periodontitis is one of the most common inflammatory diseases, with a prevalence of 11% worldwide for the severe forms and an estimated heritability of 50%. The disease is characterized by destruction of the alveolar bone due to an aberrant host inflammatory response to a dysbiotic oral microbiome. Previous genome-wide association studies (GWAS) have reported several suggestive susceptibility loci. Here, we conducted a GWAS using a German and Dutch case-control sample of aggressive periodontitis (AgP, 896 cases, 7,104 controls), a rare but highly severe and early-onset form of periodontitis, validated the associations in a German sample of severe forms of the more moderate phenotype chronic periodontitis (CP) (993 cases, 1,419 controls). Positive findings were replicated in a Turkish sample of AgP (223 cases, 564 controls). A locus at SIGLEC5 (sialic acid binding Ig-like lectin 5) and a chromosomal region downstream of the DEFA1A3 locus (defensin alpha 1-3) showed association with both disease phenotypes and were associated with periodontitis at a genome-wide significance level in the pooled samples, with P = 1.09E-08 (rs4284742,-G; OR = 1.34, 95% CI = 1.21-1.48) and P = 5.48E-10 (rs2738058,-T; OR = 1.28, 95% CI = 1.18-1.38), respectively. SIGLEC5 is expressed in various myeloid immune cells and classified as an inhibitory receptor with the potential to mediate tyrosine phosphatases SHP-1/-2 dependent signaling. Alpha defensins are antimicrobial peptides with expression in neutrophils and mucosal surfaces and a role in phagocyte-mediated host defense. This study identifies the first shared genetic risk loci of AgP and CP with genome-wide significance and highlights the role of innate and adaptive immunity in the etiology of periodontitis.
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Affiliation(s)
- Matthias Munz
- Department of Periodontology and Synoptic Dentistry, Institute of Dental, Oral and Maxillary Medicine, Charité - University Medicine Berlin, Germany.,Institute for Integrative and Experimental Genomics, University Medical Center Schleswig-Holstein - Campus Lübeck, Germany
| | - Christina Willenborg
- Institute for Integrative and Experimental Genomics, University Medical Center Schleswig-Holstein - Campus Lübeck, Germany
| | - Gesa M Richter
- Department of Periodontology and Synoptic Dentistry, Institute of Dental, Oral and Maxillary Medicine, Charité - University Medicine Berlin, Germany
| | - Yvonne Jockel-Schneider
- Department of Periodontology, Clinic of Preventive Dentistry and Periodontology, University Medical Center of the Julius-Maximilians-University, Würzburg, Germany
| | - Christian Graetz
- Department of Operative Dentistry and Periodontology, University Medical Center Schleswig-Holstein, Campus Kiel, Germany
| | - Ingmar Staufenbiel
- Department of Conservative Dentistry, Periodontology and Preventive Dentistry, Hannover Medical School, Hannover, Germany
| | - Jürgen Wellmann
- Institute of Epidemiology and Social Medicine, University Münster, Germany
| | - Klaus Berger
- Institute of Epidemiology and Social Medicine, University Münster, Germany
| | - Bastian Krone
- Institute of Medical Informatics, Biometry and Epidemiology, University Clinic Essen, Germany
| | - Per Hoffmann
- Institute of Human Genetics, University of Bonn, Germany.,Human Genomics Research Group, Department of Biomedicine, University Hospital of Basel, Switzerland
| | - Nathalie van der Velde
- Department of Internal Medicine, Erasmus Medical Center, Rotterdam, The Netherlands.,Department of Internal Medicine Section of Geriatrics, Amsterdam Medical Center, Amsterdam, The Netherlands
| | - André G Uitterlinden
- Department of Internal Medicine, Erasmus Medical Center, Rotterdam, The Netherlands
| | - Lisette C P G M de Groot
- Department of Epidemiology and the EMGO Institute of Health and Care Research, VU University Medical Center, Amsterdam, The Netherlands
| | - Amr H Sawalha
- Division of Rheumatology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, USA.,Center for Computational Medicine and Bioinformatics, University of Michigan Medical School, USA
| | - Haner Direskeneli
- Division of Rheumatology, Marmara University, School of Medicine, Istanbul, Turkey
| | | | | | - Huseyin Gencay Keceli
- Department of Periodontology, Faculty of Dentistry, Hacettepe University, Sihhiye, Ankara, Turkey
| | - Matthias Laudes
- Clinic of Internal Medicine, University Clinic Schleswig-Holstein, Kiel, Germany
| | - Barbara Noack
- Clinic of Conservational Dentistry, Center of Dental, Oral and Maxillary Medicine, University Medical Center Carl-Gustav-Carus, Technical University Dresden, Germany
| | - Alexander Teumer
- Institute for Community Medicine, University Medicine Greifswald, Germany
| | - Birte Holtfreter
- Unit of Periodontology, Department of Restorative Dentistry, Periodontology, Endodontology, Preventive Dentistry and Pedodontics, Dental School, University Medicine Greifswald, Germany
| | - Thomas Kocher
- Unit of Periodontology, Department of Restorative Dentistry, Periodontology, Endodontology, Preventive Dentistry and Pedodontics, Dental School, University Medicine Greifswald, Germany
| | - Peter Eickholz
- Department of Periodontology, Johann Wolfgang Goethe-University, Frankfurt am Main, Germany
| | - Jörg Meyle
- Department of Periodontology, University Medical Center Giessen and Marburg, Germany
| | - Christof Doerfer
- Department of Operative Dentistry and Periodontology, University Medical Center Schleswig-Holstein, Campus Kiel, Germany
| | - Corinna Bruckmann
- Department of Conservative Dentistry and Periodontology, Medical University Vienna, School of Dentistry, Vienna, Austria
| | - Wolfgang Lieb
- Institute of Epidemiology, Biobank PopGen, Christian-Albrechts-University, Kiel, Germany
| | - Andre Franke
- Institute of Clinical Molecular Biology, Christian-Albrechts-University, Kiel, Germany
| | - Stefan Schreiber
- Clinic of Internal Medicine, University Clinic Schleswig-Holstein, Kiel, Germany.,Institute of Clinical Molecular Biology, Christian-Albrechts-University, Kiel, Germany
| | - Rahime M Nohutcu
- Department of Periodontology, Faculty of Dentistry, Kocaeli University, Turkey
| | - Jeanette Erdmann
- Institute for Integrative and Experimental Genomics, University Medical Center Schleswig-Holstein - Campus Lübeck, Germany
| | - Bruno G Loos
- Department of Periodontology and Oral Biochemistry, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and VU University Amsterdam, The Netherlands
| | - Soeren Jepsen
- Department of Periodontology, Operative and Preventive Dentistry, University of Bonn, Bonn, Germany
| | - Henrik Dommisch
- Department of Periodontology and Synoptic Dentistry, Institute of Dental, Oral and Maxillary Medicine, Charité - University Medicine Berlin, Germany
| | - Arne S Schaefer
- Department of Periodontology and Synoptic Dentistry, Institute of Dental, Oral and Maxillary Medicine, Charité - University Medicine Berlin, Germany
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