51
|
Liu Y, Mu F, Liu L, Shan C. Effects of Kangfuxin solution on IL-1β, IL-6, IL-17 and TNF-α in gingival crevicular fluid in patients with fixed orthodontic gingivitis. Exp Ther Med 2018; 16:300-304. [PMID: 29896253 PMCID: PMC5995036 DOI: 10.3892/etm.2018.6171] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Accepted: 05/02/2018] [Indexed: 11/06/2022] Open
Abstract
Changes of interleukin (IL)-1β, IL-6, IL-17 and tumor necrosis factor-α (TNF-α) in gingival crevicular fluid in patients with fixed orthodontic gingivitis after treatment with Kangfuxin solution were analyzed to explore the clinical effect of Kangfuxin solution in patients with orthodontic gingivitis. A total of 78 patients diagnosed with fixed orthodontic gingivitis in Weifang People's Hospital from January 2015 to March 2017 were selected. Thirty-nine patients were treated with gingival cleansing as control group, and the other 39 patients were treated with gingival cleansing plus spraying and sublingual administration with Kangfuxin solution as treatment group. The general data of patients were collected, and the changes of IL-1β, IL-6, IL-17 and TNF-α in gingival crevicular fluid were measured, the bleeding index (BI), probing depth (PD), swelling and pain grades were recorded, and the clinical curative effects were compared between the two groups. The curative effect in treatment group was better than that in control group (p<0.05). After treatment, gingival BI and PD in both groups were lower than those before treatment. The curative effect in treatment group was better than that in control group (p<0.05). The levels of gingival pain and swelling after treatment in treatment group were mainly in grade I. The levels of gingival pain and swelling after treatment in control group were mainly in grade II and III (p<0.05). After treatment, the effective rate of control group was 76.92% and that of treatment group was 97.44% (p<0.05). It was found that the levels of IL-6 and TNF-α in gingival crevicular fluid were positively correlated with PD. The use of Kangfuxin solution in the treatment of patients with orthodontic gingivitis can effectively reduce the levels of IL-1β, IL-6, IL-17 and TNF-α in gingival crevicular fluid, and improve the periodontal conditions and the effective rate of treatment.
Collapse
Affiliation(s)
- Yuting Liu
- Department of Dentistry, Weifang People's Hospital, Weifang, Shandong 261041, P.R. China
| | - Fengping Mu
- Department of Oral and Maxillofacial Surgery, Weifang People's Hospital, Weifang, Shandong 261041, P.R. China
| | - Lijuan Liu
- Department of Dentistry, Weifang People's Hospital, Weifang, Shandong 261041, P.R. China
| | - Chune Shan
- Clinical Skill Training Center, Weifang People's Hospital, Weifang, Shandong 261041, P.R. China
| |
Collapse
|
52
|
Dropping anchor: attachment of peptidylarginine deiminase via A-LPS to secreted outer membrane vesicles of Porphyromonas gingivalis. Sci Rep 2018; 8:8949. [PMID: 29895934 PMCID: PMC5997701 DOI: 10.1038/s41598-018-27223-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Accepted: 05/21/2018] [Indexed: 12/30/2022] Open
Abstract
The periodontal pathogen Porphyromonas gingivalis has been invoked in the autoimmune disease rheumatoid arthritis (RA). This association relates to the peptidylarginine deiminase of P. gingivalis (PPAD), an enzyme capable of citrullinating human proteins and potentially contributing to loss of tolerance to citrullinated proteins in RA. PPAD is both retained in the outer membrane (OM) of P. gingivalis cells and secreted into the extracellular milieu, where it is detected in a soluble form and in association with outer membrane vesicles (OMVs). Recent studies showed that certain P. gingivalis proteins are retained in the OM through modification with an A-type lipopolysaccharide (A-LPS). Here, we investigated the possible involvement of A-LPS modification in the association of PPAD to the OM and OMVs. The results indicate that the OM- and OMV-associated PPAD is A-LPS-modified. The modified PPAD species is of low abundance in particular clinical isolates of P. gingivalis, which is not due to defects in the overall synthesis of A-LPS-modified proteins but, rather, to particular traits of the respective PPAD proteins. Lastly, we show that OMV association protects the A-LPS-modified PPAD from proteolytic degradation. Altogether, our observations show that A-LPS modification contributes to OM(V) sorting and ‘protective secretion’ of PPAD.
Collapse
|
53
|
Antal M, Battancs E, Bocskai M, Braunitzer G, Kovács L. An observation on the severity of periodontal disease in past cigarette smokers suffering from rheumatoid arthritis- evidence for a long-term effect of cigarette smoke exposure? BMC Oral Health 2018; 18:82. [PMID: 29747598 PMCID: PMC5946453 DOI: 10.1186/s12903-018-0531-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2017] [Accepted: 04/17/2018] [Indexed: 01/22/2023] Open
Abstract
Background Rheumatoid arthritis (RA) and cigarette smoking are both risk factors for periodontal disease (PD). Previous research suggests that systemic inflammatory conditions and cigarette smoking may act in synergy, and their co-occurrence leads to a much higher risk of developing severe stage PD than what the combination of their individual risks would suggest. We originally sought to test this in the case of RA, but it turned out that the majority of our patients were former smokers, who smoked for prolonged periods in the past. For that reason, we decided to shift our focus toward the possible effects of past chronic cigarette smoke exposure. Methods The data of 73 RA patients and 77 healthy controls were analyzed. The participants received a full-mouth periodontal examination to determine their periodontal status. Rheumatological indices and data on past tobacco use were also recorded. Both the patient and the control groups were divided into former smoker and non-smoker subgroups for the analyses. Non-smoker controls were used as the reference group. Results In the control group, smoking in history increased the odds of developing both the moderate and the severe stages of PD, but the change was not statistically significant. RA significantly, increased the odds of developing both stages in itself, but the highest odds were seen in the former smoker RA group. Conclusion Based on this surprising observation of ours, we hypothesize that chronic cigarette smoke might bring about permanent changes in the periodontal tissues, leading to their hypersensitivity to inflammatory challenges.
Collapse
Affiliation(s)
- Márk Antal
- Faculty of Dentistry, Department of Aesthetic and Operative Dentistry, University of Szeged, 6720 Tisza Lajos körút, Szeged, 64, Hungary.
| | - Emese Battancs
- Faculty of Dentistry, Department of Aesthetic and Operative Dentistry, University of Szeged, 6720 Tisza Lajos körút, Szeged, 64, Hungary
| | - Márta Bocskai
- Faculty of Medicine, Department of Rheumatology and Immunology, University of Szeged, 6725 Kálvária sugárút, Szeged, 57, Hungary
| | - Gábor Braunitzer
- Laboratory for Perception & Cognition and Clinical Neuroscience, Nyírő Gyula Hospital, 1135 Lehel utca, Budapest, 59, Hungary
| | - László Kovács
- Faculty of Medicine, Department of Rheumatology and Immunology, University of Szeged, 6725 Kálvária sugárút, Szeged, 57, Hungary
| |
Collapse
|
54
|
van Drongelen V, Holoshitz J. Human Leukocyte Antigen-Disease Associations in Rheumatoid Arthritis. Rheum Dis Clin North Am 2018; 43:363-376. [PMID: 28711139 DOI: 10.1016/j.rdc.2017.04.003] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
The cause and pathogenesis of rheumatoid arthritis (RA) are influenced by environmental and genetic risk factors. Shared epitope-coding human leukocyte antigen (HLA)-DRB1 alleles increase RA risk and severity; however, the underlying mechanisms of action remain unclear. In contrast, several other DRB1 alleles protect against RA. Additionally, genome-wide association studies suggest that RA associates with other, HLA and non-HLA, genes; but the relative contributions of such risk loci to RA are incompletely understood. Future research challenges include integrating the epidemiologic and genomic data into validated arthritogenic pathways and determining the mechanisms of interaction between RA risk genes and environmental influences.
Collapse
Affiliation(s)
- Vincent van Drongelen
- Department of Internal Medicine, University of Michigan, 1150 West Medical Center Drive, Ann Arbor, MI 48109, USA
| | - Joseph Holoshitz
- Department of Internal Medicine, University of Michigan, 1150 West Medical Center Drive, Ann Arbor, MI 48109, USA.
| |
Collapse
|
55
|
Effects of non-surgical periodontal therapy on periodontal laboratory and clinical data as well as on disease activity in patients with rheumatoid arthritis. Clin Oral Investig 2018; 23:141-151. [DOI: 10.1007/s00784-018-2420-3] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2017] [Accepted: 03/13/2018] [Indexed: 12/31/2022]
|
56
|
Gabarrini G, Chlebowicz MA, Vega Quiroz ME, Veloo ACM, Rossen JWA, Harmsen HJM, Laine ML, van Dijl JM, van Winkelhoff AJ. Conserved Citrullinating Exoenzymes in Porphyromonas Species. J Dent Res 2018; 97:556-562. [PMID: 29298553 DOI: 10.1177/0022034517747575] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
Porphyromonas gingivalis is one of the major oral pathogens implicated in the widespread inflammatory disorder periodontitis. Moreover, in recent years, P. gingivalis has been associated with the autoimmune disease rheumatoid arthritis. The peptidylarginine deiminase enzyme of P. gingivalis (PPAD) is a major virulence factor that catalyzes the citrullination of both bacterial and host proteins, potentially contributing to production of anticitrullinated protein antibodies. Considering that these antibodies are very specific for rheumatoid arthritis, PPAD appears to be a link between P. gingivalis, periodontitis, and the autoimmune disorder rheumatoid arthritis. PPAD was thus far considered unique among prokaryotes, with P. gingivalis being the only bacterium known to produce and secrete it. To challenge this hypothesis, we investigated the possible secretion of PPAD by 11 previously collected Porphyromonas isolates from a dog, 2 sheep, 3 cats, 4 monkeys, and a jaguar with periodontitis. Our analyses uncovered the presence of secreted PPAD homologues in 8 isolates that were identified as Porphyromonas gulae (from a dog, monkeys, and cats) and Porphyromonas loveana (from sheep). In all 3 PPAD-producing Porphyromonas species, the dominant form of the secreted PPAD was associated with outer membrane vesicles, while a minor fraction was soluble. Our results prove for the first time that the citrullinating PPAD exoenzyme is not unique to only 1 prokaryotic species. Instead, we show that PPAD is produced by at least 2 other oral pathogens.
Collapse
Affiliation(s)
- G Gabarrini
- 1 Center for Dentistry and Oral Hygiene, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands.,2 Department of Medical Microbiology, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - M A Chlebowicz
- 2 Department of Medical Microbiology, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - M E Vega Quiroz
- 2 Department of Medical Microbiology, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - A C M Veloo
- 2 Department of Medical Microbiology, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - J W A Rossen
- 2 Department of Medical Microbiology, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - H J M Harmsen
- 2 Department of Medical Microbiology, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - M L Laine
- 3 Department of Periodontology, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and VU University, Amsterdam, the Netherlands
| | - J M van Dijl
- 2 Department of Medical Microbiology, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - A J van Winkelhoff
- 1 Center for Dentistry and Oral Hygiene, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands.,2 Department of Medical Microbiology, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| |
Collapse
|
57
|
Bullon P, Pavillard LE, de la Torre-Torres R. Inflammasome and Oral Diseases. EXPERIENTIA SUPPLEMENTUM (2012) 2018; 108:153-176. [PMID: 30536171 DOI: 10.1007/978-3-319-89390-7_7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
One of the main steps in the development of the life in the earth is multicellularity. It enables cell differentiation and the development of morphological structures within an organism and is an essential factor in how to recognize friendly cells that are part of the multicellular organism and which foreign organisms can be harmful. Recognition includes devices such as the major histocompatibility complex (MHC), and the pattern recognition receptors (PRRs). PRRs are a group of proteins expressed by cells of the innate immune system that identify two classes of products: pathogen-associated molecular patterns (PAMPs), related to microbial pathogens, and damage-associated molecular patterns (DAMPs), associated with cell components that are released during cell damage or death. All these activate the inflammasome, which is a multiprotein oligomer that includes caspase 1, PYCARD, NALP, and caspase 5 (also known as caspase 11 or ICH-3). It is responsible for activation of inflammatory processes and has been shown to induce cell pyroptosis, a programmed cell death distinct from apoptosis, and promotes the maturation of the inflammatory cytokines interleukin 1β (IL-1β) and interleukin 18 (IL-18). We review whether inflammasome is related to diseases that can occur in the oral cavity. The mouth is always a possible environment for the development of pathological conditions because of the wide variety of microorganisms. Small variations in the equilibrium of the oral flora can cause disorders that could affect the organism in a systemic form. We provide data on periodontal disease, candidiasis, herpes virus, oral cancer, caries, and other oral diseases. There are very few papers that study this issue; therefore, we need more investigation and publications about inflammatory molecular processes, and more specifically, related to the inflammasome complex.
Collapse
Affiliation(s)
- Pedro Bullon
- Departament Periodontology, Facultad de Odontología, Universidad de Sevilla, Sevilla, Spain.
| | - Luis E Pavillard
- Departament Periodontology, Facultad de Odontología, Universidad de Sevilla, Sevilla, Spain
| | | |
Collapse
|
58
|
Hoppe T, Göser V, Kraus D, Probstmeier R, Frentzen M, Wenghoefer M, Jepsen S, Winter J. Response of MG63 osteoblasts on bacterial challenge is dependent on the state of differentiation. Mol Oral Microbiol 2017; 33:133-142. [DOI: 10.1111/omi.12203] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/05/2017] [Indexed: 01/15/2023]
Affiliation(s)
- T. Hoppe
- Department of Periodontology, Operative and Preventive Dentistry; University of Bonn; Bonn Germany
| | - V. Göser
- Department of Periodontology, Operative and Preventive Dentistry; University of Bonn; Bonn Germany
| | - D. Kraus
- Department of Prosthodontics, Preclinical Education and Dental Materials Sciences; University of Bonn; Bonn Germany
| | - R. Probstmeier
- Department of Nuclear Medicine; Neuro- and Tumor Cell Biology Group; University of Bonn; Bonn Germany
| | - M. Frentzen
- Department of Periodontology, Operative and Preventive Dentistry; University of Bonn; Bonn Germany
| | - M. Wenghoefer
- Department of Oral & Maxillofacial Plastic Surgery; University Hospital Bonn, University of Bonn; Bonn Germany
| | - S. Jepsen
- Department of Periodontology, Operative and Preventive Dentistry; University of Bonn; Bonn Germany
| | - J. Winter
- Department of Periodontology, Operative and Preventive Dentistry; University of Bonn; Bonn Germany
| |
Collapse
|
59
|
Jung H, Jung SM, Rim YA, Park N, Nam Y, Lee J, Park SH, Ju JH. Arthritic role of Porphyromonas gingivalis in collagen-induced arthritis mice. PLoS One 2017; 12:e0188698. [PMID: 29190705 PMCID: PMC5708830 DOI: 10.1371/journal.pone.0188698] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Accepted: 11/10/2017] [Indexed: 12/29/2022] Open
Abstract
Epidemiological studies show an association between rheumatoid arthritis (RA) and periodontal disease. Porphyromonas gingivalis (P.gingivalis) is a well-known pathogen in periodontitis. This study investigated the pathogenic effects of P.gingivalis on autoimmune arthritis in vivo. Collagen-induced arthritis (CIA) mice were intraperitoneally injected with W83 and 2561 strains of P.gingivalis. Infection with P.gingivalis exacerbated arthritis score in CIA mice. Synovial inflammation and bone destruction in CIA mice infected with P.gingivalis were more severe than in uninfected CIA mice. Both W83 and 2561 strains were more pro-arthritic after arthritis symptom was fully activated. Interestingly, only W83 strain was arthritogenic before autoimmune reaction initiated. Citrullination was detected in synovial tissue of CIA mice and CIA mice inoculated with P.gingivalis, but not in normal control mice. The citrullinated area was greater in P.gingivalis-infected CIA mice than in non-infected CIA mice. This study showed that P.gingivalis exacerbated disease in a mouse model of autoimmune arthritis and increased the expression of citrullinated antigens in the synovium. The arthritogenic effects of P.gingivalis were at least in part, dependent upon the bacterial strain with or without fimbriae expression, route and time of infection. P.gingivalis-mediated citrullination may explain the possible link between periodontal disease and RA.
Collapse
Affiliation(s)
- Hyerin Jung
- Catholic iPSC Research Center, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
- Division of Rheumatology, Department of Internal Medicine, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Seung Min Jung
- Division of Rheumatology, Department of Internal Medicine, College of Medicine, Yonsei University, Seoul, Republic of Korea
| | - Yeri Alice Rim
- Catholic iPSC Research Center, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
- Division of Rheumatology, Department of Internal Medicine, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Narae Park
- Catholic iPSC Research Center, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
- Division of Rheumatology, Department of Internal Medicine, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Yoojun Nam
- Catholic iPSC Research Center, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
- Division of Rheumatology, Department of Internal Medicine, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Jennifer Lee
- Catholic iPSC Research Center, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
- Division of Rheumatology, Department of Internal Medicine, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Sung-Hwan Park
- Division of Rheumatology, Department of Internal Medicine, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Ji Hyeon Ju
- Catholic iPSC Research Center, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
- Division of Rheumatology, Department of Internal Medicine, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
- * E-mail:
| |
Collapse
|
60
|
Caminer AC, Haberman R, Scher JU. Human microbiome, infections, and rheumatic disease. Clin Rheumatol 2017; 36:2645-2653. [PMID: 29101674 DOI: 10.1007/s10067-017-3875-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2017] [Revised: 10/05/2017] [Accepted: 10/08/2017] [Indexed: 12/16/2022]
Abstract
Microbes have coevolved with their human hosts for millions of years and are vital to their normal development and homoeostasis. It is now clear that there is direct and indirect cross talk between the microbiome and host immune responses. However, the exact mechanisms for this microbial influence in disease pathogenesis remain elusive and are now a major research focus.
Collapse
Affiliation(s)
- Ana Clara Caminer
- Sanatorio Parque, Universidad Nacional de Rosario, Rosario, Santa Fe, Argentina
| | - Rebecca Haberman
- Psoriatic Arthritis Center, Division of Rheumatology, New York University Langone Health, New York, NY, USA
| | - Jose U Scher
- Psoriatic Arthritis Center, Division of Rheumatology, New York University Langone Health, New York, NY, USA. .,Microbiome Center for Rheumatolgy and Autoimmunity (MiCRA), Division of Rheumatology, New York University School of Medicine and Hospital for Joint Diseases, New York, NY, USA. .,Division of Rheumatology, NYU Hospital for Joint Diseases, Room 1608, 301 East 17th Street, New York, NY, 10003, USA.
| |
Collapse
|
61
|
Mieszkowska A, Folkert J, Gaber T, Miksch K, Gurzawska K. Pectin nanocoating reduces proinflammatory fibroblast response to bacteria. J Biomed Mater Res A 2017; 105:3475-3481. [PMID: 28782183 DOI: 10.1002/jbm.a.36170] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2017] [Revised: 06/30/2017] [Accepted: 08/01/2017] [Indexed: 12/18/2022]
Abstract
Implant failures are primarily related to bacterial infections and inflammation. Nanocoating of implant devices with organic molecules is a method used for improving their integration into host tissues and limiting inflammation. Bioengineered plant-derived rhamnogalacturonan-Is (RG-Is) from pectins improve tissue regeneration and exhibit anti-inflammatory properties. Therefore, the aim of this study is to evaluate the in vitro effect of RG-I nanocoating on human gingival primary fibroblast (HGF) activity and proinflammatory response following Porphyromonas gingivalis (P. gingivalis) infection. Infected HGFs were incubated on tissue culture polystyrene (TCPS) plates coated with unmodified RG-I isolated from potato pectin (PU) and dearabinanated RG-I (PA). HGF morphology, proliferation, metabolic activity, and expression of genes responsible for extracellular matrix (ECM) turnover and proinflammatory response were examined. Following the P. gingivalis infection, PU and PA significantly promoted HGF proliferation and metabolic activity. Moreover, gene expression levels of IL1B, IL8, TNFA, and MMP2 decreased in the infected cells cultured on PU and PA, whereas the expression of COL1A1, FN1, and FGFR1 was upregulated. The results indicate that RG-Is are promising candidates for nanocoating of an implant surface, can reduce inflammation, and enhance implant integration, particularly in medically compromised patients with chronic inflammatory diseases such as periodontitis and rheumatoid arthritis. © 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 105A: 3475-3481, 2017.
Collapse
Affiliation(s)
- A Mieszkowska
- Environmental Biotechnology Department, Faculty of Energy and Environmental Engineering, Silesian University of Technology, Gliwice 44-100, Poland
| | - J Folkert
- Environmental Biotechnology Department, Faculty of Energy and Environmental Engineering, Silesian University of Technology, Gliwice 44-100, Poland
| | - T Gaber
- Department of Rheumatology and Clinical Immunology, Charité University Medicine, Berlin 10117, Germany
| | - K Miksch
- Environmental Biotechnology Department, Faculty of Energy and Environmental Engineering, Silesian University of Technology, Gliwice 44-100, Poland
| | - K Gurzawska
- Oral Surgery Department, Birmingham Dental School and Hospital, University of Birmingham, Birmingham B46NN, United Kingdom
| |
Collapse
|
62
|
Schmalz G, Davarpanah I, Jäger J, Mausberg RF, Krohn-Grimberghe B, Schmidt J, Haak R, Sack U, Ziebolz D. MMP-8 and TIMP-1 are associated to periodontal inflammation in patients with rheumatoid arthritis under methotrexate immunosuppression - First results of a cross-sectional study. JOURNAL OF MICROBIOLOGY, IMMUNOLOGY, AND INFECTION = WEI MIAN YU GAN RAN ZA ZHI 2017; 52:386-394. [PMID: 28919284 DOI: 10.1016/j.jmii.2017.07.016] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Revised: 06/24/2017] [Accepted: 07/05/2017] [Indexed: 01/01/2023]
Abstract
BACKGROUND Aim of this cross-sectional study was the investigation of associations between different rheumatoid arthritis (RA)-related blood parameters and periodontal condition as well as selected periodontal pathogenic bacteria in RA patients under methotrexate (MTX) immunosuppression. METHODS Periodontal probing depth (PPD), bleeding on probing (BOP) and clinical attachment loss (CAL) were assessed. Periodontal condition was classified into: no/mild and moderate or severe periodontitis (P). Prevalence of selected periodontal pathogenic bacteria and concentration of matrix metalloproteinase 8 (MMP-8) was assessed from the gingival crevicular fluid (GCF) using PCR and ELISA, respectively. Blood samples were analyzed for the concentration of selected rheumatoid parameters. STATISTICAL ANALYSIS t-test, Mann-Whitney-U-Test, exact Fisher tests or chi square test (p < 0.05). RESULTS Fifty-six patients (mean age 55.07 years, 34 P, 22 no P) were included. While prevalence of periodontal pathogenic bacteria was higher in P patients, no substantial association of bacteria with blood parameters was found. In periodontal diseased participants, MMP-8 concentration in GCF (6.22 ± 7.01 vs. 15.99 ± 13.49; p < 0.01) and blood (2.60 ± 3.57 vs. 5.52 ± 5.92; p < 0.01) was increased, while no correlation between GCF and blood was found (Spearman's rho: 0.175; p = 0.23). Furthermore, higher blood concentrations of MMP-8 and tissue inhibitor of MMP (TIMP-1) were detected in patients with increased periodontal inflammation (BOP positive, p < 0.01). CONCLUSION Periodontal inflammation appears associated to MMP-8 and TIMP-1 in blood. Thereby, clinical interaction between periodontal conditions, periodontal pathogenic bacteria and RA-related cytokines remain unclear.
Collapse
Affiliation(s)
- G Schmalz
- Dept. of Cariology, Endodontology and Periodontology, University of Leipzig, Germany
| | - I Davarpanah
- Dept. of Cariology, Endodontology and Periodontology, University of Leipzig, Germany
| | - J Jäger
- Dept. of Preventive Dentistry, Periodontology and Cariology, University Medical Center Goettingen, Germany
| | - R F Mausberg
- Dept. of Preventive Dentistry, Periodontology and Cariology, University Medical Center Goettingen, Germany
| | | | - J Schmidt
- Dept. of Cariology, Endodontology and Periodontology, University of Leipzig, Germany
| | - R Haak
- Dept. of Cariology, Endodontology and Periodontology, University of Leipzig, Germany
| | - U Sack
- Institute of Clinical Immunology, Medical Faculty, University of Leipzig, Germany
| | - Dirk Ziebolz
- Dept. of Cariology, Endodontology and Periodontology, University of Leipzig, Germany.
| |
Collapse
|
63
|
Potempa J, Mydel P, Koziel J. The case for periodontitis in the pathogenesis of rheumatoid arthritis. Nat Rev Rheumatol 2017; 13:606-620. [DOI: 10.1038/nrrheum.2017.132] [Citation(s) in RCA: 217] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
|
64
|
Sun XL, Law BYK, de Seabra Rodrigues Dias IR, Mok SWF, He YZ, Wong VKW. Pathogenesis of thromboangiitis obliterans: Gene polymorphism and immunoregulation of human vascular endothelial cells. Atherosclerosis 2017; 265:258-265. [PMID: 28864202 DOI: 10.1016/j.atherosclerosis.2017.08.009] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Revised: 07/24/2017] [Accepted: 08/17/2017] [Indexed: 01/19/2023]
Abstract
Thromboangiitis obliterans (TAO) is a nonatherosclerotic, segmental, inflammatory vasculitis, which commonly affects the small- and medium-sized arteries of the upper and lower extremities. Despite its discovery more than a century ago, little progress has been made in its treatment. Unless the pathogenesis is elucidated, therapeutic approaches will be limited. The purpose of this review article is to collate current knowledge of mechanisms for the pathogenesis of thromboangiitis obliterans and to propose potential mechanisms from a genetic and immunoreactive point of view for its inception. Therefore, we discuss the possibility that the pathogenesis of this disease is due to a type of gene polymorphism, which leads to an immunological inflammatory vasculitis associated with tobacco abuse, highly linked to T cells, human vascular endothelial cells (HVECs), and the TLR-MyD88-NFκB pathway, distinct from arteriosclerosis obliterans and other vasculitides.
Collapse
Affiliation(s)
- Xiao-Lei Sun
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, China; Department of Vascular and Thyroid Surgery of the Affiliated Hospital of Southwest Medical University, Sichuan Province, China
| | - Betty Yuen-Kwan Law
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, China
| | | | - Simon Wing Fai Mok
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, China
| | - Yan-Zheng He
- Department of Vascular and Thyroid Surgery of the Affiliated Hospital of Southwest Medical University, Sichuan Province, China.
| | - Vincent Kam-Wai Wong
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, China.
| |
Collapse
|
65
|
Incidence of inflammatory joint diseases in Finland: results from a population-based epidemiological study. Rheumatol Int 2017; 37:1693-1700. [DOI: 10.1007/s00296-017-3779-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2017] [Accepted: 07/18/2017] [Indexed: 11/25/2022]
|
66
|
Sirotti S, Generali E, Ceribelli A, Isailovic N, De Santis M, Selmi C. Personalized medicine in rheumatology: the paradigm of serum autoantibodies. AUTOIMMUNITY HIGHLIGHTS 2017; 8:10. [PMID: 28702930 PMCID: PMC5507804 DOI: 10.1007/s13317-017-0098-1] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Accepted: 07/04/2017] [Indexed: 02/08/2023]
Abstract
The sequencing of the human genome is now well recognized as the starting point of personalized medicine. Nonetheless, everyone is unique and can develop different phenotypes of the same disease, despite identical genotypes, as well illustrated by discordant monozygotic twins. To recognize these differences, one of the easiest and most familiar examples of biomarkers capable of identifying and predicting the outcome of patients is represented by serum autoantibodies. In this review, we will describe the concept of personalized medicine and discuss the predictive, prognostic and preventive role of antinuclear antibodies (ANA), anti-citrullinated peptide antibodies (ACPA), rare autoantibodies and anti-drug antibodies (ADA), to evaluate how these can help to identify different disease immune phenotypes and to choose the best option for treating and monitoring rheumatic patients in everyday practice. The importance of ANA resides in the prediction of clinical manifestations in systemic sclerosis and systemic lupus erythematosus and their association with malignancies. ACPA have a predictive role in rheumatoid arthritis, they are associated with the development of a more aggressive disease, extra-articular manifestations and premature mortality in RA patients; moreover, they are capable of predicting therapeutic response. Rare autoantibodies are associated with different disease manifestations and also with a greater incidence of cancer. The determination of ADA levels may be useful in patients where the clinical efficacy of TNF-α inhibitor has dropped, for the assessment of a right management. The resulting scenario supports serum autoantibodies as the cornerstone of personalized medicine in autoimmune diseases.
Collapse
Affiliation(s)
- Silvia Sirotti
- Division of Rheumatology and Clinical Immunology, Humanitas Research Hospital, Via A. Manzoni 56, Rozzano, 20089, Milan, Italy
| | - Elena Generali
- Division of Rheumatology and Clinical Immunology, Humanitas Research Hospital, Via A. Manzoni 56, Rozzano, 20089, Milan, Italy
| | - Angela Ceribelli
- Division of Rheumatology and Clinical Immunology, Humanitas Research Hospital, Via A. Manzoni 56, Rozzano, 20089, Milan, Italy
| | - Natasa Isailovic
- Division of Rheumatology and Clinical Immunology, Humanitas Research Hospital, Via A. Manzoni 56, Rozzano, 20089, Milan, Italy
| | - Maria De Santis
- Division of Rheumatology and Clinical Immunology, Humanitas Research Hospital, Via A. Manzoni 56, Rozzano, 20089, Milan, Italy
| | - Carlo Selmi
- Division of Rheumatology and Clinical Immunology, Humanitas Research Hospital, Via A. Manzoni 56, Rozzano, 20089, Milan, Italy. .,BIOMETRA Department, University of Milan, Milan, Italy.
| |
Collapse
|
67
|
Abstract
Periodontitis is an extremely prevalent disease worldwide and is driven by complex dysbiotic microbiota. Here we analyzed the transcriptional activity of the periodontal pocket microbiota from all domains of life as well as the human host in health and chronic periodontitis. Bacteria showed strong enrichment of 18 KEGG functional modules in chronic periodontitis, including bacterial chemotaxis, flagellar assembly, type III secretion system, type III CRISPR-Cas system, and two component system proteins. Upregulation of these functions was driven by the red-complex pathogens and candidate pathogens, e.g. Filifactor alocis, Prevotella intermedia, Fretibacterium fastidiosum and Selenomonas sputigena. Nine virulence factors were strongly up-regulated, among them the arginine deiminase arcA from Porphyromonas gingivalis and Mycoplasma arginini. Viruses and archaea accounted for about 0.1% and 0.22% of total putative mRNA reads, respectively, and a protozoan, Entamoeba gingivalis, was highly enriched in periodontitis. Fourteen human transcripts were enriched in periodontitis, including a gene for a ferric iron binding protein, indicating competition with the microbiota for iron, and genes associated with cancer, namely nucleolar phosphoprotein B23, ankyrin-repeat domain 30B-like protein and beta-enolase. The data provide evidence on the level of gene expression in vivo for the potentially severe impact of the dysbiotic microbiota on human health.
Collapse
|
68
|
Furuya T, Maeda S, Momohara S, Taniguchi A, Yamanaka H. Dental treatments, tooth extractions, and osteonecrosis of the jaw in Japanese patients with rheumatoid arthritis: results from the IORRA cohort study. J Bone Miner Metab 2017; 35:344-350. [PMID: 27372662 DOI: 10.1007/s00774-016-0763-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2016] [Accepted: 04/25/2016] [Indexed: 11/28/2022]
Abstract
This study aimed to evaluate dental treatments, tooth extractions, and osteonecrosis of the jaw (ONJ) in Japanese patients with rheumatoid arthritis (RA). Patients with RA enrolled in our cohort completed self-administered questionnaires, which included questions regarding their dental treatments, tooth extractions by dentists during the past 6 months, and past history of ONJ. The history of ONJ was validated with the patients' medical records. Logistic regression was used to determine the association of variables with dental treatments and tooth extractions during the past 6 months. Among 5695 Japanese patients with RA who responded to the questionnaires (mean age, 61.0 years; 85.6 % female), 2323 patients (40.8 %) and 378 patients (6.6 %) reported having had dental treatments and tooth extractions performed by a dentist within the past 6 months, respectively. In multivariate models, advanced age was significantly (P < 0.0001) associated with both dental treatments and tooth extractions during the prior 6-month period, and ever smoking was significantly (P = 0.023) correlated with tooth extractions during that time. Among patients who reported a history of ONJ, we confirmed five cases of ONJ with patient medical records. The prevalence of ONJ was 0.094 % among all RA patients and 0.26 % among female RA patients ≥65 years of age (n = 1888). Our data suggest that more than a few Japanese patients with RA have dental complications that require care by dentists, and that Japanese rheumatologists and dentists should cooperate to improve dental health in patients with RA.
Collapse
Affiliation(s)
- Takefumi Furuya
- Institute of Rheumatology, Tokyo Women's Medical University, 10-22 Kawada-cho, Shinjuku-ku, Tokyo, 162-0054, Japan.
| | - Shigeru Maeda
- Department of Dental Anesthesiology, Okayama University Dental Hospital, 2-5-1 Shikata-cho, Okayama, 700-8525, Japan
| | - Shigeki Momohara
- Institute of Rheumatology, Tokyo Women's Medical University, 10-22 Kawada-cho, Shinjuku-ku, Tokyo, 162-0054, Japan
| | - Atsuo Taniguchi
- Institute of Rheumatology, Tokyo Women's Medical University, 10-22 Kawada-cho, Shinjuku-ku, Tokyo, 162-0054, Japan
| | - Hisashi Yamanaka
- Institute of Rheumatology, Tokyo Women's Medical University, 10-22 Kawada-cho, Shinjuku-ku, Tokyo, 162-0054, Japan
| |
Collapse
|
69
|
Nazir MA. Prevalence of periodontal disease, its association with systemic diseases and prevention. Int J Health Sci (Qassim) 2017; 11:72-80. [PMID: 28539867 PMCID: PMC5426403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
Periodontal diseases are prevalent both in developed and developing countries and affect about 20-50% of global population. High prevalence of periodontal disease in adolescents, adults, and older individuals makes it a public health concern. Several risk factors such as smoking, poor oral hygiene, diabetes, medication, age, hereditary, and stress are related to periodontal diseases. Robust evidence shows the association of periodontal diseases with systemic diseases such as cardiovascular disease, diabetes, and adverse pregnancy outcomes. Periodontal disease is likely to cause 19% increase in the risk of cardiovascular disease, and this increase in relative risk reaches to 44% among individuals aged 65 years and over. Type 2 diabetic individuals with severe form of periodontal disease have 3.2 times greater mortality risk compared with individuals with no or mild periodontitis. Periodontal therapy has been shown to improve glycemic control in type 2 diabetic subjects. Periodontitis is related to maternal infection, preterm birth, low birth weight, and preeclampsia. Oral disease prevention strategies should be incorporated in chronic systemic disease preventive initiatives to curtail the burden of disease in populations. The reduction in the incidence and prevalence of periodontal disease can reduce its associated systemic diseases and can also minimize their financial impact on the health-care systems. It is hoped that medical, dental practitioners, and other health-care professionals will get familiar with perio-systemic link and risk factors, and need to refer to the specialized dental or periodontal care.
Collapse
Affiliation(s)
- Muhammad Ashraf Nazir
- Department of Preventive Dental Sciences, University of Dammam College of Dentistry, Dammam, Kingdom of Saudi Arabia
| |
Collapse
|
70
|
Kirchner A, Jäger J, Krohn-Grimberghe B, Patschan S, Kottmann T, Schmalz G, Mausberg RF, Haak R, Ziebolz D. Active matrix metalloproteinase-8 and periodontal bacteria depending on periodontal status in patients with rheumatoid arthritis. J Periodontal Res 2017; 52:745-754. [DOI: 10.1111/jre.12443] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/09/2016] [Indexed: 12/30/2022]
Affiliation(s)
- A. Kirchner
- Department of Cariology, Endodontology and Periodontology; University of Leipzig; Leipzig Germany
| | - J. Jäger
- Department of Preventive Dentistry, Periodontology and Cariology; University Medical Centre Goettingen; Goettingen Germany
| | | | - S. Patschan
- Department of Nephrology and Rheumatology; University Medical Centre Goettingen; Goettingen Germany
| | - T. Kottmann
- Clinical Research Organisation; Hamm Germany
| | - G. Schmalz
- Department of Cariology, Endodontology and Periodontology; University of Leipzig; Leipzig Germany
| | - R. F. Mausberg
- Department of Preventive Dentistry, Periodontology and Cariology; University Medical Centre Goettingen; Goettingen Germany
| | - R. Haak
- Department of Cariology, Endodontology and Periodontology; University of Leipzig; Leipzig Germany
| | - D. Ziebolz
- Department of Cariology, Endodontology and Periodontology; University of Leipzig; Leipzig Germany
| |
Collapse
|
71
|
Mühlberg S, Jäger J, Krohn-Grimberghe B, Patschan S, Mausberg RF, Schmalz G, Haak R, Ziebolz D. Oral health-related quality of life depending on oral health in patients with rheumatoid arthritis. Clin Oral Investig 2017; 21:2661-2670. [DOI: 10.1007/s00784-017-2068-4] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2016] [Accepted: 01/31/2017] [Indexed: 12/13/2022]
|
72
|
Äyräväinen L, Leirisalo-Repo M, Kuuliala A, Ahola K, Koivuniemi R, Meurman JH, Heikkinen AM. Periodontitis in early and chronic rheumatoid arthritis: a prospective follow-up study in Finnish population. BMJ Open 2017; 7:e011916. [PMID: 28143836 PMCID: PMC5293865 DOI: 10.1136/bmjopen-2016-011916] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
OBJECTIVES To investigate the association between rheumatoid arthritis (RA) and periodontitis with special emphasis on the role of antirheumatic drugs in periodontal health. DESIGN Prospective follow-up study. Patients with early untreated RA and chronic active RA were examined at baseline and 16 months later. Controls were examined once. SETTINGS AND PARTICIPANTS The study was conducted in Finland from September 2005 to May 2014 at the Helsinki University Hospital. Overall, 124 participants were recruited for dental and medical examinations: 53 were patients with early disease-modifying antirheumatic drug (DMARD) naїve RA (ERA), 28 were patients with chronic RA (CRA) with insufficient response to conventional DMARDs. After baseline examination, patients with ERA started treatment with synthetic DMARDs and patients with CRA with biological DMARDs. Controls were 43 age-matched, gender-matched and community-matched participants. OUTCOME MEASURES Degree of periodontitis (defined according to the Center for Disease Control and Prevention and the American Academy of Periodontology). Prevalence of periodontal bacteria (analysed from plaque samples), clinical rheumatological status by Disease Activity Score, 28-joint count (DAS28), function by Health Assessment Questionnaire (HAQ) and treatment response by European League Against Rheumatism (EULAR) criteria. RESULTS Moderate periodontitis was present in 67.3% of patients with ERA, 64.3% of patients with CRA and 39.5% of control participants (p=0.001). Further, patients with RA had significantly more periodontal findings compared with controls, recorded with common periodontal indexes. In the re-examination, patients with RA still showed poor periodontal health in spite of treatment with DMARDs after baseline examination. The prevalence of Porphyromonas gingivalis was higher in patients with ERA with periodontal probing depth ≥4 mm compared with patients with CRA and controls. Antirheumatic medication did not seem to affect the results. CONCLUSIONS Moderate periodontitis was more frequent in patients with RA than in controls. Patients with ERA and CRA exhibited poorer periodontal health parameters when compared with controls. There was no association between antirheumatic treatment and periodontal parameters.
Collapse
Affiliation(s)
- Leena Äyräväinen
- Department of Oral and Maxillofacial Diseases, University of Helsinki, Helsinki, Finland
| | - Marjatta Leirisalo-Repo
- Department of Rheumatology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Antti Kuuliala
- Department of Bacteriology and Immunology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Kirsi Ahola
- Department of Oral and Maxillofacial Diseases, University of Helsinki, Helsinki, Finland
| | - Riitta Koivuniemi
- Department of Rheumatology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Jukka H Meurman
- Department of Oral and Maxillofacial Diseases, University of Helsinki, Helsinki, Finland
| | - Anna Maria Heikkinen
- Department of Oral and Maxillofacial Diseases, University of Helsinki, Helsinki, Finland
| |
Collapse
|
73
|
Yilmaz Ö, Lee KL. The inflammasome and danger molecule signaling: at the crossroads of inflammation and pathogen persistence in the oral cavity. Periodontol 2000 2017; 69:83-95. [PMID: 26252403 DOI: 10.1111/prd.12084] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/10/2014] [Indexed: 12/27/2022]
Abstract
Inflammasomes are an oligomeric assembly of multiprotein complexes that activate the caspase-1-dependent maturation and the subsequent secretion of inflammatory interleukin-1beta and interleukin-18 cytokines in response to a 'danger signal' in vertebrates. The assessment of their significance continues to grow rapidly as the complex biology of various chronic inflammatory conditions is better dissected. Increasing evidence strongly links inflammasomes and host-derived small 'danger molecule ATP' signaling with the modulation of the host immune response by microbial colonizers as well as with potential altering of the microbiome structure and intermicrobial interactions in the host. All of these factors eventually lead to the destructive chronic inflammatory disease state. In the oral cavity, a highly dynamic and multifaceted interplay takes place between the signaling of endogenous danger molecules and colonizing microbes on the mucosal surfaces. This interaction may redirect the local microenvironment to favor the conversion of the resident microbiome toward pathogenicity. This review outlines the major components of the known inflammasome complexes/mechanisms and highlights their regulation, in particular, by oral microorganisms, in relation to periodontal disease pathology. Better characterization of the cellular and molecular biology of the inflammasome will probably identify important potential therapeutic targets for the treatment and prevention of periodontal disease, as well as for other debilitating chronic diseases.
Collapse
|
74
|
Meresta A, Folkert J, Gaber T, Miksch K, Buttgereit F, Detert J, Pischon N, Gurzawska K. Plant-derived pectin nanocoatings to prevent inflammatory cellular response of osteoblasts following Porphyromonas gingivalis infection. Int J Nanomedicine 2017; 12:433-445. [PMID: 28138240 PMCID: PMC5238760 DOI: 10.2147/ijn.s113740] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Background Bioengineered plant-derived Rhamnogalacturonan-Is (RG-Is) from pectins are potential candidates for surface nanocoating of medical devices. It has recently been reported that RG-I nanocoatings may prevent bacterial infection and improve the biocompatibility of implants. The aim of the study was to evaluate in vitro impact of bioengineered RG-I nanocoatings on osteogenic capacity and proinflammatory cytokine response of murine osteoblasts following Porphyromonas gingivalis infection. Methods Murine MC3T3-E1 osteoblasts and isolated primary calvarial osteoblasts from C57BL/6J (B6J osteoblasts) mice were infected with P. gingivalis and incubated on tissue culture polystyrene plates with or without nanocoatings of unmodified RG-Is isolated from potato pulps (PU) or dearabinanated RG-Is (PA). To investigate a behavior of infected osteoblasts cultured on RG-Is cell morphology, proliferation, metabolic activity, mineralization and osteogenic and pro-inflammatory gene expression were examined. Results Following P. gingivalis infection, PA, but not PU, significantly promoted MC3T3-E1 and BJ6 osteoblasts proliferation, metabolic activity, and calcium deposition. Moreover, Il-1b, Il-6, TNF-α, and Rankl gene expressions were downregulated in cells cultured on PU and to a higher extent on PA as compared to the corresponding control, whereas Runx, Alpl, Col1a1, and Bglap gene expressions were upregulated vice versa. Conclusion Our data clearly showed that pectin RG-Is nanocoating with high content of galactan (PA) reduces the osteoblastic response to P. gingivalis infection in vitro and may, therefore, reduce a risk of inflammation especially in immunocompromised patients with rheumatoid or periodontal disorders.
Collapse
Affiliation(s)
- Anna Meresta
- Environmental Biotechnology Department, Faculty of Power and Environmental, Silesian University of Technology, Gliwice, Poland
| | - Justyna Folkert
- Environmental Biotechnology Department, Faculty of Power and Environmental, Silesian University of Technology, Gliwice, Poland
| | - Timo Gaber
- Department of Rheumatology and Clinical Immunology
| | - Korneliusz Miksch
- Environmental Biotechnology Department, Faculty of Power and Environmental, Silesian University of Technology, Gliwice, Poland
| | | | | | - Nicole Pischon
- Department of Periodontology, Charité University Medicine, Berlin, Germany
| | - Katarzyna Gurzawska
- Department of Periodontology, Charité University Medicine, Berlin, Germany; Oral Surgery Department, The School of Dentistry, University of Birmingham, Birmingham, UK
| |
Collapse
|
75
|
Jiao J, Shi D, Cao ZQ, Meng HX, Lu RF, Zhang L, Song Y, Zhao JR. Effectiveness of non-surgical periodontal therapy in a large Chinese population with chronic periodontitis. J Clin Periodontol 2016; 44:42-50. [PMID: 27726174 DOI: 10.1111/jcpe.12637] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/06/2016] [Indexed: 12/24/2022]
Affiliation(s)
- Jian Jiao
- Department of Periodontology; Peking University School and Hospital of Stomatology; National Engineering Laboratory for Digital and Material Technology of Stomatology; Beijing Key Laboratory of Digital Stomatology; Beijing China
| | - Dong Shi
- Department of Periodontology; Peking University School and Hospital of Stomatology; National Engineering Laboratory for Digital and Material Technology of Stomatology; Beijing Key Laboratory of Digital Stomatology; Beijing China
| | - Zhan-qiang Cao
- Information Center; Peking University School and Hospital of Stomatology; National Engineering Laboratory for Digital and Material Technology of Stomatology; Beijing Key Laboratory of Digital Stomatology; Beijing China
| | - Huan-xin Meng
- Department of Periodontology; Peking University School and Hospital of Stomatology; National Engineering Laboratory for Digital and Material Technology of Stomatology; Beijing Key Laboratory of Digital Stomatology; Beijing China
| | - Rui-fang Lu
- Department of Periodontology; Peking University School and Hospital of Stomatology; National Engineering Laboratory for Digital and Material Technology of Stomatology; Beijing Key Laboratory of Digital Stomatology; Beijing China
| | - Li Zhang
- Department of Periodontology; Peking University School and Hospital of Stomatology; National Engineering Laboratory for Digital and Material Technology of Stomatology; Beijing Key Laboratory of Digital Stomatology; Beijing China
| | - Yi Song
- Institute of Child and Adolescent Health; School of Public Health; Peking University; Beijing China
- Social Medicine and Global Health; Department of Clinical Sciences; Lund University; Malmö Sweden
| | - Jing-ren Zhao
- Department of General Dentistry; Peking University School and Hospital of Stomatology; National Engineering Laboratory for Digital and Material Technology of Stomatology; Beijing Key Laboratory of Digital Stomatology; Beijing China
| |
Collapse
|
76
|
Kwon YJ, Jeon KJ, Chung TH, Lee YJ. Elevated leukocyte count is associated with periodontitis in Korean adults: the 2012-2014 KNHANES. Oral Dis 2016; 23:241-246. [DOI: 10.1111/odi.12601] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2016] [Revised: 09/26/2016] [Accepted: 10/19/2016] [Indexed: 11/27/2022]
Affiliation(s)
- Y-J Kwon
- Department of Family Medicine; Yonsei University College of Medicine; Seoul Korea
| | - K-J Jeon
- Department of Oral and Maxillofacial Radiology; Yong-in Severance Hospital; Yonsei University College of Dentistry; Yong-in Korea
| | - T-H Chung
- Severance check-up; Severance Hospital; Yonsei University Health System; Seoul Korea
| | - Y-J Lee
- Department of Family Medicine; Yonsei University College of Medicine; Seoul Korea
| |
Collapse
|
77
|
Rothschild B. Correlation of Periodontal Disease With Inflammatory Arthritis in the Time Before Modern Medical Intervention. J Periodontol 2016; 88:266-272. [PMID: 27834119 DOI: 10.1902/jop.2016.160422] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
BACKGROUND Controversy exists regarding possible correlation of periodontal disease with rheumatoid arthritis (RA) and ankylosing spondylitis (AS). Confounding factors may relate to stringency of inflammatory disease diagnosis and the effect of therapeutic intervention for RA on periodontal disease. These factors are investigated in this study. METHODS Forty-five individuals with documented RA (n = 15), spondyloarthropathy (n = 15), and calcium pyrophosphate deposition disease (CPPD) (n = 15), from the Hamann-Todd collection of human skeletons compiled from 1912 to 1938, and 15 individuals contemporarily incorporated in the collection were examined for tooth loss, cavity occurrence, average and maximum lingual and buccal depth of space between tooth and bone, periosteal reaction, serpentine bone resorption, abscess formation, and root penetration of the bone surface and analyzed by analysis of variance. RESULTS Tooth loss was common, but actual number of teeth lost, cavity occurrence, average and maximum lingual and buccal depth of space between tooth and bone, periosteal reaction, serpentine grooving surrounding teeth (considered a sign of inflammation), abscess formation, and root exposure (penetration of bone surface) were indistinguishable among controls and individuals with RA, spondyloarthropathy, and CPPD. CONCLUSIONS Although many factors can affect periodontal disease, presence of inflammatory arthritis does not appear to be one of them. The implication is that dental disease was common in the general population and not necessarily associated with arthritis, at least before the advent of modern rheumatologic medications. As specific diagnosis did not affect prevalence, perhaps current prevalence controversy may relate to current intervention, a subject for further study.
Collapse
Affiliation(s)
- Bruce Rothschild
- Northeast Ohio Medical University, Rootstown, OH.,Vertebrate Paleontology, Carnegie Museum of Natural History, Pittsburgh, PA
| |
Collapse
|
78
|
Izumigawa M, Hasegawa Y, Ikai R, Horie T, Inomata M, Into T, Kitai N, Yoshimura F, Murakami Y. Separation of novel phosphoproteins of Porphyromonas gingivalis using phosphate-affinity chromatography. Microbiol Immunol 2016; 60:702-707. [PMID: 27663267 DOI: 10.1111/1348-0421.12441] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2016] [Revised: 09/06/2016] [Accepted: 09/19/2016] [Indexed: 11/28/2022]
Abstract
Phosphorylation of serine, threonine and tyrosine is a central mechanism for regulating the structure and function of proteins in both eukaryotes and prokaryotes. However, the action of phosphorylated proteins present in Porphyromonas gingivalis, a major periodontopathogen, is not fully understood. Here, six novel phosphoproteins that possess metabolic activities were identified, namely PGN_0004, PGN_0375, PGN_0500, PGN_0724, PGN_0733 and PGN_0880, having been separated by phosphate-affinity chromatography. The identified proteins were detectable by immunoblotting specific to phosphorylated Ser (P-Ser), P-Thr, and/or P-Tyr. These results imply that novel phosphorylated proteins might play an important role for regulation of metabolism in P. gingivalis.
Collapse
Affiliation(s)
- Masashi Izumigawa
- Department of Oral Microbiology, Asahi University School of Dentistry, 1851-1 Hozumi, Mizuho, Gifu 501-0296, Japan
| | - Yoshiaki Hasegawa
- Department of Microbiology, School of Dentistry, Aichi Gakuin University, 1-100 Kusumoto-cho, Chikusa-ku, Nagoya 464-8650, Aichi, Japan.
| | - Ryota Ikai
- Department of Community Oral Health, Asahi University School of Dentistry, 1851-1 Hozumi, Mizuho, Gifu 501-0296, Japan
| | - Toshi Horie
- Department of Oral Microbiology, Asahi University School of Dentistry, 1851-1 Hozumi, Mizuho, Gifu 501-0296, Japan
| | - Megumi Inomata
- Department of Oral Microbiology, Asahi University School of Dentistry, 1851-1 Hozumi, Mizuho, Gifu 501-0296, Japan
| | - Takeshi Into
- Department of Oral Microbiology, Asahi University School of Dentistry, 1851-1 Hozumi, Mizuho, Gifu 501-0296, Japan
| | - Noriyuki Kitai
- Department of Orthodontic, Asahi University School of Dentistry, 1851-1 Hozumi, Mizuho, Gifu 501-0296, Japan
| | - Fuminobu Yoshimura
- Department of Microbiology, School of Dentistry, Aichi Gakuin University, 1-100 Kusumoto-cho, Chikusa-ku, Nagoya 464-8650, Aichi, Japan
| | - Yukitaka Murakami
- Department of Oral Microbiology, Asahi University School of Dentistry, 1851-1 Hozumi, Mizuho, Gifu 501-0296, Japan
| |
Collapse
|
79
|
Abrão ALP, Santana CM, Bezerra ACB, Amorim RFBD, Silva MBD, Mota LMHD, Falcão DP. What rheumatologists should know about orofacial manifestations of autoimmune rheumatic diseases. REVISTA BRASILEIRA DE REUMATOLOGIA 2016; 56:441-450. [PMID: 27692394 DOI: 10.1016/j.rbre.2016.02.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2015] [Accepted: 08/28/2015] [Indexed: 12/18/2022] Open
Abstract
Orofacial manifestations occur frequently in rheumatic diseases and usually represent early signs of disease or of its activity that are still neglected in clinical practice. Among the autoimmune rheumatic diseases with potential for oral manifestations, rheumatoid arthritis (RA), inflammatory myopathies (IM), systemic sclerosis (SSc), systemic lupus erythematosus (SLE), relapsing polychondritis (RP) and Sjögren's syndrome (SS) can be cited. Signs and symptoms such as oral hyposalivation, xerostomia, temporomandibular joint disorders, lesions of the oral mucosa, periodontal disease, dysphagia, and dysphonia may be the first expression of these rheumatic diseases. This article reviews the main orofacial manifestations of rheumatic diseases that may be of interest to the rheumatologist for diagnosis and monitoring of autoimmune rheumatic diseases.
Collapse
Affiliation(s)
- Aline Lauria Pires Abrão
- Programa de Pós-Graduação em Ciências da Saúde, Faculdade de Ciências da Saúde, Universidade de Brasília (UnB), Brasília, DF, Brazil.
| | - Caroline Menezes Santana
- Programa de Pós-Graduação em Ciências Médicas, Faculdade de Medicina, Universidade de Brasília (UnB), Brasília, DF, Brazil
| | - Ana Cristina Barreto Bezerra
- Programa de Pós-Graduação em Ciências da Saúde, Faculdade de Ciências da Saúde, Universidade de Brasília (UnB), Brasília, DF, Brazil
| | | | | | | | - Denise Pinheiro Falcão
- Programa de Pós-Graduação em Ciências Médicas, Faculdade de Medicina, Universidade de Brasília (UnB), Brasília, DF, Brazil
| |
Collapse
|
80
|
Detert J, Burmester GR. [Treat to target and personalized medicine (precision medicine)]. Z Rheumatol 2016; 75:624-32. [PMID: 27365026 DOI: 10.1007/s00393-016-0137-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- J Detert
- Klinik m.S. Rheumatologie und Klinische Immunologie, Charité-Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Deutschland.
| | - G R Burmester
- Klinik m.S. Rheumatologie und Klinische Immunologie, Charité-Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Deutschland
| |
Collapse
|
81
|
Pischon N, Hoedke D, Kurth S, Lee P, Dommisch H, Steinbrecher A, Pischon T, Burmester GR, Buttgereit F, Detert J, Riemekasten G. Increased Periodontal Attachment Loss in Patients With Systemic Sclerosis. J Periodontol 2016; 87:763-71. [DOI: 10.1902/jop.2016.150475] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
|
82
|
Bostanci V, Toker H, Senel S, Poyraz O, Akpinar A, Görgün EP, Bakar O. Evaluation of IL-1β, IL-1ra, and IL-10 levels and outcome of periodontal therapy in chronic periodontitis with familial Mediterranean fever. Clin Oral Investig 2016; 21:469-475. [DOI: 10.1007/s00784-016-1816-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2015] [Accepted: 04/03/2016] [Indexed: 11/24/2022]
|
83
|
Nemoto TK, Ohara-Nemoto Y, Bezerra GA, Shimoyama Y, Kimura S. A Porphyromonas gingivalis Periplasmic Novel Exopeptidase, Acylpeptidyl Oligopeptidase, Releases N-Acylated Di- and Tripeptides from Oligopeptides. J Biol Chem 2016; 291:5913-5925. [PMID: 26733202 PMCID: PMC4786725 DOI: 10.1074/jbc.m115.687566] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2015] [Revised: 12/06/2015] [Indexed: 01/01/2023] Open
Abstract
Exopeptidases, including dipeptidyl- and tripeptidylpeptidase, are crucial for the growth of Porphyromonas gingivalis, a periodontopathic asaccharolytic bacterium that incorporates amino acids mainly as di- and tripeptides. In this study, we identified a novel exopeptidase, designated acylpeptidyl oligopeptidase (AOP), composed of 759 amino acid residues with active Ser(615) and encoded by PGN_1349 in P. gingivalis ATCC 33277. AOP is currently listed as an unassigned S9 family peptidase or prolyl oligopeptidase. Recombinant AOP did not hydrolyze a Pro-Xaa bond. In addition, although sequence similarities to human and archaea-type acylaminoacyl peptidase sequences were observed, its enzymatic properties were apparently distinct from those, because AOP scarcely released an N-acyl-amino acid as compared with di- and tripeptides, especially with N-terminal modification. The kcat/Km value against benzyloxycarbonyl-Val-Lys-Met-4-methycoumaryl-7-amide, the most potent substrate, was 123.3 ± 17.3 μm(-1) s(-1), optimal pH was 7-8.5, and the activity was decreased with increased NaCl concentrations. AOP existed predominantly in the periplasmic fraction as a monomer, whereas equilibrium between monomers and oligomers was observed with a recombinant molecule, suggesting a tendency of oligomerization mediated by the N-terminal region (Met(16)-Glu(101)). Three-dimensional modeling revealed the three domain structures (residues Met(16)-Ala(126), which has no similar homologue with known structure; residues Leu(127)-Met(495) (β-propeller domain); and residues Ala(496)-Phe(736) (α/β-hydrolase domain)) and further indicated the hydrophobic S1 site of AOP in accord with its hydrophobic P1 preference. AOP orthologues are widely distributed in bacteria, archaea, and eukaryotes, suggesting its importance for processing of nutritional and/or bioactive oligopeptides.
Collapse
Affiliation(s)
- Takayuki K Nemoto
- From the Department of Oral Molecular Biology, Course of Medical and Dental Sciences, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki 852-8588, Japan
| | - Yuko Ohara-Nemoto
- From the Department of Oral Molecular Biology, Course of Medical and Dental Sciences, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki 852-8588, Japan
| | - Gustavo Arruda Bezerra
- the Department of Structural and Computational Biology, Max F. Perutz Laboratories, University of Vienna, Campus Vienna Biocenter 5, 1030 Vienna, Austria, and.
| | - Yu Shimoyama
- the Division of Molecular Microbiology, Iwate Medical University, Iwate 028-3694, Japan
| | - Shigenobu Kimura
- the Division of Molecular Microbiology, Iwate Medical University, Iwate 028-3694, Japan
| |
Collapse
|
84
|
Abrão ALP, Santana CM, Bezerra ACB, Amorim RFBD, Silva MBD, Mota LMHD, Falcão DP. What rheumatologists should know about orofacial manifestations of autoimmune rheumatic diseases. REVISTA BRASILEIRA DE REUMATOLOGIA 2016; 56:S0482-5004(16)00021-8. [PMID: 26947177 DOI: 10.1016/j.rbr.2015.08.011] [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] [Received: 02/04/2015] [Revised: 07/10/2015] [Accepted: 08/28/2015] [Indexed: 12/30/2022] Open
Abstract
Orofacial manifestations occur frequently in rheumatic diseases and usually represent early signs of disease or of its activity that are still neglected in clinical practice. Among the autoimmune rheumatic diseases with potential for oral manifestations, rheumatoid arthritis (RA), inflammatory myopathies (IM), systemic sclerosis (SSc), systemic lupus erythematosus (SLE), relapsing polychondritis (RP) and Sjögren's syndrome (SS) can be cited. Signs and symptoms such as oral hyposalivation, xerostomia, temporomandibular joint disorders, lesions of the oral mucosa, periodontal disease, dysphagia, and dysphonia may be the first expression of these rheumatic diseases. This article reviews the main orofacial manifestations of rheumatic diseases that may be of interest to the rheumatologist for diagnosis and monitoring of autoimmune rheumatic diseases.
Collapse
Affiliation(s)
- Aline Lauria Pires Abrão
- Programa de Pós-Graduação em Ciências da Saúde, Faculdade de Ciências da Saúde, Universidade de Brasília (UnB), Brasília, DF, Brasil.
| | - Caroline Menezes Santana
- Programa de Pós-Graduação em Ciências Médicas, Faculdade de Medicina, Universidade de Brasília (UnB), Brasília, DF, Brasil
| | - Ana Cristina Barreto Bezerra
- Programa de Pós-Graduação em Ciências da Saúde, Faculdade de Ciências da Saúde, Universidade de Brasília (UnB), Brasília, DF, Brasil
| | | | | | | | - Denise Pinheiro Falcão
- Programa de Pós-Graduação em Ciências Médicas, Faculdade de Medicina, Universidade de Brasília (UnB), Brasília, DF, Brasil
| |
Collapse
|
85
|
Genetic data: The new challenge of personalized medicine, insights for rheumatoid arthritis patients. Gene 2016; 583:90-101. [PMID: 26869316 DOI: 10.1016/j.gene.2016.02.004] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2015] [Revised: 01/18/2016] [Accepted: 02/05/2016] [Indexed: 01/15/2023]
Abstract
Rapid advances in genotyping technology, analytical methods, and the establishment of large cohorts for population genetic studies have resulted in a large new body of information about the genetic basis of human rheumatoid arthritis (RA). Improved understanding of the root pathogenesis of the disease holds the promise of improved diagnostic and prognostic tools based upon this information. In this review, we summarize the nature of new genetic findings in human RA, including susceptibility loci and gene-gene and gene-environment interactions, as well as genetic loci associated with sub-groups of patients and those associated with response to therapy. Possible uses of these data are discussed, such as prediction of disease risk as well as personalized therapy and prediction of therapeutic response and risk of adverse events. While these applications are largely not refined to the point of clinical utility in RA, it seems likely that multi-parameter datasets including genetic, clinical, and biomarker data will be employed in the future care of RA patients.
Collapse
|
86
|
Nemoto TK, Ohara-Nemoto Y. Exopeptidases and gingipains in Porphyromonas gingivalis as prerequisites for its amino acid metabolism. JAPANESE DENTAL SCIENCE REVIEW 2016; 52:22-29. [PMID: 28408952 PMCID: PMC5382784 DOI: 10.1016/j.jdsr.2015.08.002] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2015] [Revised: 08/20/2015] [Accepted: 08/20/2015] [Indexed: 01/22/2023] Open
Abstract
Porphyromonas gingivalis, an asaccharolytic bacterium, utilizes amino acids as energy and carbon sources. Since amino acids are incorporated into the bacterial cells mainly as di- and tri-peptides, exopeptidases including dipeptidyl-peptidase (DPP) and tripeptidyl-peptidase are considered to be prerequisite components for their metabolism. We recently discovered DPP11, DPP5, and acylpeptidyl oligopeptidase in addition to previously reported DPP4, DPP7, and prolyl tripeptidyl peptidase A. DPP11 is a novel enzyme specific for acidic P1 residues (Asp and Glu) and distributed ubiquitously in eubacteria, while DPP5 is preferential for the hydrophobic P1 residue and the first entity identified in prokaryotes. Recently, acylpeptidyl oligopeptidase with a preference for hydrophobic P1 residues was found to release N-terminally blocked di- and tri-peptides. Furthermore, we also demonstrated that gingipains R and K contribute to P1-basic dipeptide production. These observations implicate that most, if not all, combinations of di- and tri-peptides are produced from extracellular oligopeptides even with an N-terminal modification. Here, we review P. gingivalis exopeptidases mainly in regard to their enzymatic characteristics. These exopeptidases with various substrate specificities benefit P. gingivalis for obtaining energy and carbon sources from the nutritionally limited subgingival environment.
Collapse
Affiliation(s)
- Takayuki K. Nemoto
- Department of Oral Molecular Biology, Course of Medical and Dental Sciences, Nagasaki University Graduate School of Biomedical Sciences, Japan
| | | |
Collapse
|
87
|
Vahabi S, Rostamian A, Baniebrahimi G. Characteristics and relationship of periodontal disease with juvenile idiopathic and rheumatoid arthritis. Dent Res J (Isfahan) 2016; 12:541-7. [PMID: 26759590 PMCID: PMC4696356 DOI: 10.4103/1735-3327.170573] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Background: Rheumatoid arthritis (RA) is the most prevalent chronic inflammatory disease of the joints. It is correlated with periodontal disease due to similar factors that exist in both diseases. The present study assessed the relationship of periodontal disease with RA and juvenile idiopathic arthritis (JIA). Materials and Methods: In this case-control study, 30 RA and 30 JIA patients along with similar number of matched controls were selected among patients referred to Imam Khomeini Hospital, Tehran, Iran. Periodontal parameters including pocket depth (PD), clinical attachment level (CAL), O’Leary and Bay plaque index (PI) and bleeding on probing (BOP) were determined in cases and controls. Erythrocyte sedimentation rate, number of painful and inflamed joints and severity of disease were evaluated in RA and JIA patients. Mann-Whitney U-test nonparametric, Spearman and Pearson's correlation coefficients, and Chi-square tests were used as statistical analysis (α = 0.05). Results: PD (4.17 vs. 3.6 mm; P < 0.0001), CAL (4.89 vs. 4.18 mm; P < 0.002), percentage of sites with PD >4 mm (58.83% vs. 44.33%; P < 0.002), percentage of sites with CAL >3 mm (74.13% vs. 64.4%; P < 0.001), percentage of sites with BOP (9.67% vs. 6.87%; P < 0.0001) and PI index (85.73% vs. 80.63%; P < 0.0001) were significantly higher in RA patients than controls. In this group, direct and significant correlations were found between serologic findings, disease severity and number of painful and inflamed joints with periodontal factors. In JIA patients, no significant relationships were found between JIA findings and periodontal parameters. Conclusion: Considering the limitations of this study, there was a relationship between RA and periodontal disease. Severity of periodontal disease increases in patients with RA, while no increased risk of periodontal disease or its severity was observed among JIA patients.
Collapse
Affiliation(s)
- Surena Vahabi
- Department of Periodontics, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | - Ghazaleh Baniebrahimi
- Department of Pediatrics, Dental School, Shiraz University of Medical Sciences, Shiraz, Iran
| |
Collapse
|
88
|
Gülseren D, Karaduman A, Kutsal D, Nohutcu RM. The relationship between recurrent aphthous stomatitis, and periodontal disease and Helicobacter Pylori infection. Clin Oral Investig 2016; 20:2055-2060. [PMID: 26733449 DOI: 10.1007/s00784-015-1704-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2015] [Accepted: 12/28/2015] [Indexed: 01/17/2023]
Abstract
OBJECTIVE Recurrent aphthous stomatitis (RAS) is a common oral mucosal disease with unknown etiology. This cross-sectional study aimed to test the hypothesis that Helicobacter pylori and periodontal disease might play an etiological role in RAS. METHODS Dental plaque samples obtained from 38 patients with RAS and 43 healthy individuals via periodontal examinations were examined for H. pylori colonization. H. pylori was identified using the rapid urease test (RUT). The periodontal status of the patients and controls was based on the following periodontal parameters: periodontal pocket depth (PPD), the plaque index (PI), the gingival index (GI), and clinical attachment loss (CAL). RESULTS RUT results were positive in 34 (89.5 %) of the 38 patients and 24 (55.8 %) of the 43 controls (P = 0.002). There were not any significant differences in mean PPD, PI, GI, or CAL between the patient and control groups (P > 0.05). Mean PPD, PI, GI, and CAL were higher in the RUT-positive RAS patients than in the RUT-negative patients (P > 0.05, for all). CONCLUSIONS The present findings show that H. pylori might have played an etiological role in RAS and might have caused periodontal disease, but RAS was not associated with any of the periodontal parameters examined in this study. CLINICAL RELEVANCE The present study indicates that H. pylori plays a role in the development of RAS, but periodontal diseases have no effect on it. Eradicating H. pylori might be useful to prevent RAS.
Collapse
Affiliation(s)
- D Gülseren
- Department of Dermatology and Venereology, Ankara Polatlı Duatepe State Hospital, Şentepe Mah. Hasan Polatkan Cad. B Blok, Polatlı, Ankara, Turkey.
| | - A Karaduman
- Faculty of Medicine, Department of Dermatology and Venereology, Hacettepe University, Ankara, Turkey
| | - D Kutsal
- Department of Periodontology, Aksaray Oral and Dental Health Hospital, Aksaray, Turkey
| | - R M Nohutcu
- Faculty of Dentistry, Department of Periodontology, Hacettepe University, Ankara, Turkey
| |
Collapse
|
89
|
Stone VN, Parikh HI, El-rami F, Ge X, Chen W, Zhang Y, Kellogg GE, Xu P. Identification of Small-Molecule Inhibitors against Meso-2, 6-Diaminopimelate Dehydrogenase from Porphyromonas gingivalis. PLoS One 2015; 10:e0141126. [PMID: 26544875 PMCID: PMC4636305 DOI: 10.1371/journal.pone.0141126] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2015] [Accepted: 10/05/2015] [Indexed: 01/03/2023] Open
Abstract
Species-specific antimicrobial therapy has the potential to combat the increasing threat of antibiotic resistance and alteration of the human microbiome. We therefore set out to demonstrate the beginning of a pathogen-selective drug discovery method using the periodontal pathogen Porphyromonas gingivalis as a model. Through our knowledge of metabolic networks and essential genes we identified a “druggable” essential target, meso-diaminopimelate dehydrogenase, which is found in a limited number of species. We adopted a high-throughput virtual screen method on the ZINC chemical library to select a group of potential small-molecule inhibitors. Meso-diaminopimelate dehydrogenase from P. gingivalis was first expressed and purified in Escherichia coli then characterized for enzymatic inhibitor screening studies. Several inhibitors with similar structural scaffolds containing a sulfonamide core and aromatic substituents showed dose-dependent inhibition. These compounds were further assayed showing reasonable whole-cell activity and the inhibition mechanism was determined. We conclude that the establishment of this target and screening strategy provides a model for the future development of new antimicrobials.
Collapse
Affiliation(s)
- Victoria N. Stone
- Philips Institute for Oral Health Research, Virginia Commonwealth University, Richmond, Virginia, United States of America
- Department of Microbiology and Immunology, Virginia Commonwealth University, Richmond, Virginia, United States of America
| | - Hardik I. Parikh
- Department of Medicinal Chemistry, Virginia Commonwealth University, Richmond, Virginia, United States of America
| | - Fadi El-rami
- Philips Institute for Oral Health Research, Virginia Commonwealth University, Richmond, Virginia, United States of America
- Department of Microbiology and Immunology, Virginia Commonwealth University, Richmond, Virginia, United States of America
| | - Xiuchun Ge
- Philips Institute for Oral Health Research, Virginia Commonwealth University, Richmond, Virginia, United States of America
| | - Weihau Chen
- Philips Institute for Oral Health Research, Virginia Commonwealth University, Richmond, Virginia, United States of America
| | - Yan Zhang
- Department of Medicinal Chemistry, Virginia Commonwealth University, Richmond, Virginia, United States of America
| | - Glen E. Kellogg
- Department of Medicinal Chemistry, Virginia Commonwealth University, Richmond, Virginia, United States of America
- Center for the Study of Biological Complexity, Virginia Commonwealth University, Richmond, Virginia, United States of America
| | - Ping Xu
- Philips Institute for Oral Health Research, Virginia Commonwealth University, Richmond, Virginia, United States of America
- Department of Microbiology and Immunology, Virginia Commonwealth University, Richmond, Virginia, United States of America
- Center for the Study of Biological Complexity, Virginia Commonwealth University, Richmond, Virginia, United States of America
- * E-mail:
| |
Collapse
|
90
|
Grasso MA, Comer AC, DiRenzo DD, Yesha Y, Rishe ND. Using Big Data to Evaluate the Association between Periodontal Disease and Rheumatoid Arthritis. AMIA ... ANNUAL SYMPOSIUM PROCEEDINGS. AMIA SYMPOSIUM 2015; 2015:589-593. [PMID: 26958193 PMCID: PMC4765642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
An association between periodontal disease and rheumatoid arthritis is believed to exist. Most investigations into a possible relationship have been case-control studies with relatively low sample sizes. The advent of very large clinical repositories has created new opportunities for data-driven research. We conducted a retrospective cohort study to measure the association between periodontal disease and rheumatoid arthritis in a population of 25 million patients. We demonstrated that subjects with periodontal disease were roughly 1.4 times more likely to have rheumatoid arthritis. These results compare favorably with those of previous studies on smaller cohorts. Additional work is needed to identify the mechanisms behind this association and to determine if aggressive treatment of periodontal disease can alter the course of rheumatoid arthritis.
Collapse
Affiliation(s)
| | - Angela C Comer
- University of Maryland School of Medicine, Baltimore, Maryland
| | - Dana D DiRenzo
- University of Maryland School of Medicine, Baltimore, Maryland
| | - Yelena Yesha
- University of Maryland Baltimore County, Baltimore, Maryland
| | - Naphtali D Rishe
- Florida International University and NOA Data Science Institute Inc, Miami, Florida
| |
Collapse
|
91
|
Ikai R, Hasegawa Y, Izumigawa M, Nagano K, Yoshida Y, Kitai N, Lamont RJ, Yoshimura F, Murakami Y. Mfa4, an Accessory Protein of Mfa1 Fimbriae, Modulates Fimbrial Biogenesis, Cell Auto-Aggregation, and Biofilm Formation in Porphyromonas gingivalis. PLoS One 2015; 10:e0139454. [PMID: 26437277 PMCID: PMC4593637 DOI: 10.1371/journal.pone.0139454] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2015] [Accepted: 09/13/2015] [Indexed: 12/23/2022] Open
Abstract
Porphyromonas gingivalis, a gram-negative obligate anaerobic bacterium, is considered to be a key pathogen in periodontal disease. The bacterium expresses Mfa1 fimbriae, which are composed of polymers of Mfa1. The minor accessory components Mfa3, Mfa4, and Mfa5 are incorporated into these fimbriae. In this study, we characterized Mfa4 using genetically modified strains. Deficiency in the mfa4 gene decreased, but did not eliminate, expression of Mfa1 fimbriae. However, Mfa3 and Mfa5 were not incorporated because of defects in posttranslational processing and leakage into the culture supernatant, respectively. Furthermore, the mfa4-deficient mutant had an increased tendency to auto-aggregate and form biofilms, reminiscent of a mutant completely lacking Mfa1. Notably, complementation of mfa4 restored expression of structurally intact and functional Mfa1 fimbriae. Taken together, these results indicate that the accessory proteins Mfa3, Mfa4, and Mfa5 are necessary for assembly of Mfa1 fimbriae and regulation of auto-aggregation and biofilm formation of P. gingivalis. In addition, we found that Mfa3 and Mfa4 are processed to maturity by the same RgpA/B protease that processes Mfa1 subunits prior to polymerization.
Collapse
Affiliation(s)
- Ryota Ikai
- Department of Oral Microbiology, Asahi University School of Dentistry, Mizuho, Gifu, Japan
- Department of Orthodontics, Asahi University School of Dentistry, Mizuho, Gifu, Japan
| | - Yoshiaki Hasegawa
- Department of Oral Microbiology, Asahi University School of Dentistry, Mizuho, Gifu, Japan
- Department of Microbiology, School of Dentistry, Aichi Gakuin University, Nagoya, Aichi, Japan
- * E-mail:
| | - Masashi Izumigawa
- Department of Oral Microbiology, Asahi University School of Dentistry, Mizuho, Gifu, Japan
- Department of Orthodontics, Asahi University School of Dentistry, Mizuho, Gifu, Japan
| | - Keiji Nagano
- Department of Microbiology, School of Dentistry, Aichi Gakuin University, Nagoya, Aichi, Japan
| | - Yasuo Yoshida
- Department of Microbiology, School of Dentistry, Aichi Gakuin University, Nagoya, Aichi, Japan
| | - Noriyuki Kitai
- Department of Orthodontics, Asahi University School of Dentistry, Mizuho, Gifu, Japan
| | - Richard J. Lamont
- Department of Oral Immunology and Infectious Diseases, School of Dentistry, University of Louisville, Louisville, KY, United States of America
| | - Fuminobu Yoshimura
- Department of Microbiology, School of Dentistry, Aichi Gakuin University, Nagoya, Aichi, Japan
| | - Yukitaka Murakami
- Department of Oral Microbiology, Asahi University School of Dentistry, Mizuho, Gifu, Japan
| |
Collapse
|
92
|
Onat A, Ademoğlu E, Can G, Altay S, Karagöz A, Köroğlu B, Yüksel H. Rheumatoid factor mediates excess serum lipoprotein(a) for independent association with type 2 diabetes in men. Anatol J Cardiol 2015; 15:782-8. [PMID: 25592098 PMCID: PMC5336962 DOI: 10.5152/akd.2014.5826] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/23/2014] [Indexed: 12/02/2022] Open
Abstract
OBJECTIVE The potential association of rheumatoid factor (RF) and lipoprotein (Lp)(a) levels, as well as with the likelihood of type 2 diabetes and hypertension, needs exploring. METHODS Cross-sectional associations were sought in this unselected and population-based 1539-adult cohort (age 58.8±10.6 years). RF was assayed nephelometrically. Multiple logistic regression analyses were used for covariates of RF positivity and for the latter's association with diabetes and hypertension. RESULTS RF-positive individuals were older, fewer current smokers, had significantly lower fasting triglycerides (by 13%), higher fibrinogen, and tended to higher sex hormone-binding globulin (SHBG) levels. Whereas, women had a similar risk profile irrespective of RF status, RF-positive men had significantly higher Lp(a). In contrast to Lp(a) being positively correlated with SHBG in RF-negative subjects (r=0.08; p=0.007), an inverse correlation existed in seropositive individuals (r=-0.32, p=0.011), suggesting the interplay of an immune complex. In regression analyses, RF positivity was associated with Lp(a) in men but not in women, [OR 1.53 (1.19; 1.96)], independent of age, SHBG, and C-reactive protein (CRP). RF positivity was further associated with diabetes [OR 1.98 (95% CI 1.11; 3.52)] in the whole sample, additively to waist circumference and CRP, major determinants of diabetes. RF-positive subjects were not significantly associated independently with hypertension. CONCLUSION Autoimmune activation linked to Lp(a) is mediated by the autoantibody RF in contributing to the development of type 2 diabetes.
Collapse
Affiliation(s)
- Altan Onat
- Department of Cardiology, Cerrahpaşa Faculty of Medicine, İstanbul University; İstanbul-Turkey.
| | | | | | | | | | | | | |
Collapse
|
93
|
Chou YY, Lai KL, Chen DY, Lin CH, Chen HH. Rheumatoid Arthritis Risk Associated with Periodontitis Exposure: A Nationwide, Population-Based Cohort Study. PLoS One 2015; 10:e0139693. [PMID: 26426533 PMCID: PMC4591281 DOI: 10.1371/journal.pone.0139693] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2015] [Accepted: 09/16/2015] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND The risk of periodontitis (PD) is increased in the patient group of rheumatoid arthritis (RA). RA and PD also shared some pathological mechanism. The aim of this study is to investigate the risk of RA associated with PD exposure. METHODS AND FINDINGS This study identified 3 mutually exclusive cohorts using the 1999-2010 Taiwanese National Health Insurance Research Database (NHIRD) to investigate the association between PD and the risk of incident RA. All patients with PD in 2000 were identified from the database of all enrollees as the PD cohort. From the representative database of 1,000,000 enrollees randomly selected in 2010 (LHID2010), individuals without any periodontal disease (PO) during 1999-2010 were selected as the non-PO cohort. Individuals who were not included in the non-PO cohort and received dental scaling (DS) no more than two times per year during 1999-2010 were selected as the DS cohort from LHID2010. Using cox proportional regression analysis, hazard ratios (HRs) with 95% confidence intervals (Cis) were calculated to quantify the association between PD exposure and RA development. In the three-group comparison using the non-PO cohort as reference, we found that the risk of RA was higher in the PD and DS cohorts (HRs, 1.89 and 1.43; 95% CIs, 1.56-2.29 and 1.09-1.87, respectively). For comparisons between two cohorts, the PD cohort had a higher risk of RA than the non-PO and DS cohorts (HRs, 1.91 and 1.35; 95% CIs, 1.57-2.30 and 1.09-1.67, respectively). CONCLUSION PD was associated with an increased risk of RA development.
Collapse
Affiliation(s)
- Yin-Yi Chou
- Division of Allergy, Immunology and Rheumatology, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Kuo-Lung Lai
- Division of Allergy, Immunology and Rheumatology, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, Taiwan
- School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Der-Yuan Chen
- Division of Allergy, Immunology and Rheumatology, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, Taiwan
- School of Medicine, National Yang-Ming University, Taipei, Taiwan
- School of Medicine, Chung-Shan Medical University, Taichung, Taiwan
- Institute of Biomedical Science and Rong Hsing Research Center for Translational Medicine, Chung-Hsing University, Taichung, Taiwan
- Department of Medical Education, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Ching-Heng Lin
- Department of Medical Research, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Hsin-Hua Chen
- Division of Allergy, Immunology and Rheumatology, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, Taiwan
- School of Medicine, National Yang-Ming University, Taipei, Taiwan
- School of Medicine, Chung-Shan Medical University, Taichung, Taiwan
- Institute of Biomedical Science and Rong Hsing Research Center for Translational Medicine, Chung-Hsing University, Taichung, Taiwan
- Department of Medical Education, Taichung Veterans General Hospital, Taichung, Taiwan
- Department of Medical Research, Taichung Veterans General Hospital, Taichung, Taiwan
- Institute of Public Health and Community Medicine Research Center, National Yang-Ming University, Taipei, Taiwan
- Institute of Hospital and Health Care Administration, National Yang-Ming University, Taipei, Taiwan
- * E-mail:
| |
Collapse
|
94
|
Dou Y, Aruni W, Muthiah A, Roy F, Wang C, Fletcher HM. Studies of the extracytoplasmic function sigma factor PG0162 in Porphyromonas gingivalis. Mol Oral Microbiol 2015. [PMID: 26216199 DOI: 10.1111/omi.12122] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
PG0162, annotated as an extracytoplasmic function (ECF) sigma factor in Porphyromonas gingivalis, is composed of 193 amino acids. As previously reported, the PG0162-deficient mutant, P. gingivalis FLL350 showed significant reduction in gingipain activity compared with the parental strain. Because this ECF sigma factor could be involved in the virulence regulation in P. gingivalis, its genetic properties were further characterized. A 5'-RACE analysis showed that the start of transcription of the PG0162 gene occurred from a guanine (G) residue 69 nucleotides upstream of the ATG translation initiation codon. The function of PG0162 as a sigma factor was confirmed in a run-off in vitro transcription assay using the purified rPG0162 and RNAP core enzyme from Escherichia coli with the PG0162 promoter as template. As an appropriate PG0162 inducing environmental signal is unknown, a strain overexpressing the PG0162 gene designated P. gingivalis FLL391 was created. Compared with the wild-type strain, transcriptome analysis of P. gingivalis FLL391 showed that approximately 24% of the genome displayed altered gene expression (260 upregulated genes; 286 downregulated genes). Two other ECF sigma factors (PG0985 and PG1660) were upregulated more than two-fold. The autoregulation of PG0162 was confirmed with the binding of the rPG0162 protein to the PG0162 promoter in electrophoretic mobility shift assay. In addition, the rPG0162 protein also showed the ability to bind to the promoter region of two genes (PG0521 and PG1167) that were most upregulated in P. gingivalis FLL391. Taken together, our data suggest that PG0162 is a sigma factor that may play an important role in the virulence regulatory network in P. gingivalis.
Collapse
Affiliation(s)
- Y Dou
- Division of Microbiology and Molecular Genetics, Department of Basic Sciences, School of Medicine, Loma Linda University, Loma Linda, CA, USA
| | - W Aruni
- Division of Microbiology and Molecular Genetics, Department of Basic Sciences, School of Medicine, Loma Linda University, Loma Linda, CA, USA
| | - A Muthiah
- Division of Microbiology and Molecular Genetics, Department of Basic Sciences, School of Medicine, Loma Linda University, Loma Linda, CA, USA
| | - F Roy
- Division of Microbiology and Molecular Genetics, Department of Basic Sciences, School of Medicine, Loma Linda University, Loma Linda, CA, USA
| | - C Wang
- Division of Microbiology and Molecular Genetics, Department of Basic Sciences, School of Medicine, Loma Linda University, Loma Linda, CA, USA
| | - H M Fletcher
- Division of Microbiology and Molecular Genetics, Department of Basic Sciences, School of Medicine, Loma Linda University, Loma Linda, CA, USA.,Institute of Oral Biology, Kyung Hee University, Seoul, Republic of Korea
| |
Collapse
|
95
|
Lee JY, Jung YJ, Jun HK, Choi BK. Pathogenic potential of Tannerella forsythia enolase. Mol Oral Microbiol 2015; 31:189-203. [PMID: 26172848 DOI: 10.1111/omi.12115] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/02/2015] [Indexed: 11/29/2022]
Abstract
Although enolases are cytosolic enzymes involved in the glycolytic pathway, they can also be secreted or expressed on the surface of a variety of eukaryotic cells and bacteria. Surface-exposed enolases of eukaryotes and bacteria can function as plasminogen receptors. Furthermore, antibodies raised against bacterial enolases can react with host enolases, suggesting molecular mimicry between bacterial and host enzymes. In this study, we analyzed an enolase of the major periodontopathogen Tannerella forsythia, which is either secreted or present on the cell surface, via matrix-assisted laser desorption ionization time-of-flight mass spectrometry and immunofluorescence, respectively. The T. forsythia enolase retained the enzymatic activity converting 2-phosphoglycerate to phosphoenolpyruvate and showed plasminogen binding and activating ability, which resulted in the degradation of fibronectin secreted from human gingival fibroblasts. In addition, it induced proinflammatory cytokine production, including interleukin-1β (IL-1β), IL-6, IL-8, and tumour necrosis factor-α (TNF-a) in the human THP-1 monocytic cell line. Taken together, our results demonstrate that T. forsythia enolase plays a role in pathogenesis in the host by plasminogen activation and proinflammatory cytokine induction, which has the potential to exaggerate inflammation in periodontitis.
Collapse
Affiliation(s)
- J-Y Lee
- Department of Oral Microbiology and Immunology, School of Dentistry, Seoul National University, Seoul, Korea
| | - Y-J Jung
- Department of Oral Microbiology and Immunology, School of Dentistry, Seoul National University, Seoul, Korea
| | - H-K Jun
- Department of Oral Microbiology and Immunology, School of Dentistry, Seoul National University, Seoul, Korea
| | - B-K Choi
- Department of Oral Microbiology and Immunology, School of Dentistry, Seoul National University, Seoul, Korea.,Dental Research Institute, Seoul National University, Seoul, Korea
| |
Collapse
|
96
|
The Influence of Interleukin 17A and IL17F Polymorphisms on Chronic Periodontitis Disease in Brazilian Patients. Mediators Inflamm 2015; 2015:147056. [PMID: 26339129 PMCID: PMC4539172 DOI: 10.1155/2015/147056] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2015] [Accepted: 05/18/2015] [Indexed: 12/17/2022] Open
Abstract
A case-control study was conducted on patients with chronic periodontitis (CP) and healthy controls with the aim of evaluating possible association between interleukin 17A (IL17A) G197A (rs2275913) and IL17F T7488C (rs763780) polymorphisms and periodontitis. Genotypes were determined by PCR-RFLP method. Statistical analyses were conducted using the OpenEpi and SNPStas software to calculate Chi-square with Yates correction or Fisher's exact tests, odds ratios (OR), and 95% confidence intervals (CIs). SNPStas software was used to calculate Hardy-Weinberg equilibrium. IL17A AA genotype was more frequent in patients with chronic periodontitis (CP) in the codominant and recessive models (P = 0.09; OR = 2.53 and P = 0.03; OR = 2.46, resp.), the females with CP (P = 0.01, OR = 4.34), Caucasoid patients with CP (P = 0.01, OR = 3.45), and nonsmoking Caucasian patients with CP (P = 0.04, OR = 3.51). The IL17A A allele was also more frequent in Caucasians with CP (P = 0.04, OR = 1.59). IL17F T7488C polymorphism was not associated with chronic periodontitis. In these patients from Southern Brazil, the IL17A rs2275913 polymorphisms, IL17A AA genotype, and the A allele were associated with a susceptibility to chronic periodontitis.
Collapse
|
97
|
Alabdulmohsen W, Rozario SD, Markowitz K, Fine DH, Velliyagounder K. Diabetic Lactoferrin Deficient Mice Demonstrates Greater Susceptibility to Experimental Periodontal Disease. JOURNAL OF ORAL BIOLOGY (NORTHBOROUGH, MASS.) 2015; 2:6. [PMID: 26855973 PMCID: PMC4743892 DOI: 10.13188/2377-987x.1000012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The objective of this study is to detrmine whether alloxan-induced diabetic Lactoferrin knockout (LFKO-/-) mice are more susceptible to periodontal disease caused by Aggregatibacter actinomycetemcomitans compared to the diabetic wild-type (WT) mice. Diabetes was induced in mice by a single dose of alloxan (60 mg/kg) injected intravenously. Mice were categorized as diabetic when blood glucose levels >250 mg/dL were measured on the 7th day after the injection. Periodontal disease was experimentally induced by A. actinomycetemcomitans infection in alloxan induced diabetic WT and LFKO-/- mice. Fasting blood glucose levels and body weight were monitored throughout the study. At the end of the 12th week of infection, mice were sacrificed and bone loss among the groups was estimated by measuring the distance between cemento-enamel junction (CEJ) to the alveolar bone crest (ABC) at 12 sites on the molars. A. actinomycetemcomitans infected mice groups developed more alveolar bone loss than sham-infected animals. Diabetic LFKO-/- infected mice exhibited significant bone loss (P<0.01) and a higher mean fasting blood glucose level (P<0.05) when compared to diabetic WT infected mice. No statistically significant difference in fasting blood glucose level was found between the infected and sham-infected groups. Peripheral blood analysis at the end of the 12th week revealed a significant reduction in the platelet counts in LFKO-/- mice when compared to WT mice. Furthermore, diabetic LFKO-/- presented with lower counts than non-diabetic LFKO-/- mice (P<0.01). In conclusion, diabetic lactoferrin deficient mice are at a higher risk of developing periodontal infection induced by A. actinomycetemcomitans when compared to diabetic WTI mice.
Collapse
Affiliation(s)
| | | | | | | | - Kabilan Velliyagounder
- Address for Correspondence: Kabilan Velliyagounder, Department of Oral Biology, Rutgers School of Dental Medicine, 185 South Orange Ave, Newark, New Jersey, 07103, USA, Tel: 932-972-5051; Fax: 973-972-0045;
| |
Collapse
|
98
|
Sakamoto Y, Suzuki Y, Iizuka I, Tateoka C, Roppongi S, Fujimoto M, Inaka K, Tanaka H, Yamada M, Ohta K, Gouda H, Nonaka T, Ogasawara W, Tanaka N. Structural and mutational analyses of dipeptidyl peptidase 11 from Porphyromonas gingivalis reveal the molecular basis for strict substrate specificity. Sci Rep 2015; 5:11151. [PMID: 26057589 PMCID: PMC4460893 DOI: 10.1038/srep11151] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2015] [Accepted: 05/15/2015] [Indexed: 11/25/2022] Open
Abstract
The dipeptidyl peptidase 11 from Porphyromonas gingivalis (PgDPP11) belongs to the S46 family of serine peptidases and preferentially cleaves substrates with Asp/Glu at the P1 position. The molecular mechanism underlying the substrate specificity of PgDPP11, however, is unknown. Here, we report the crystal structure of PgDPP11. The enzyme contains a catalytic domain with a typical double β-barrel fold and a recently identified regulatory α-helical domain. Crystal structure analyses, docking studies, and biochemical studies revealed that the side chain of Arg673 in the S1 subsite is essential for recognition of the Asp/Glu side chain at the P1 position of the bound substrate. Because S46 peptidases are not found in mammals and the Arg673 is conserved among DPP11s, we anticipate that DPP11s could be utilised as targets for antibiotics. In addition, the present structure analyses could be useful templates for the design of specific inhibitors of DPP11s from pathogenic organisms.
Collapse
Affiliation(s)
- Yasumitsu Sakamoto
- School of Pharmacy, Iwate Medical University, 2-1-1 Nishitokuta, Yahaba, Iwate 028-3694, Japan
| | - Yoshiyuki Suzuki
- Department of Bioengineering, Nagaoka University of Technology, 1603-1 Kamitomioka, Nagaoka, Niigata 940-2188, Japan
| | - Ippei Iizuka
- School of Pharmacy, Iwate Medical University, 2-1-1 Nishitokuta, Yahaba, Iwate 028-3694, Japan
| | - Chika Tateoka
- School of Pharmacy, Iwate Medical University, 2-1-1 Nishitokuta, Yahaba, Iwate 028-3694, Japan
| | - Saori Roppongi
- School of Pharmacy, Iwate Medical University, 2-1-1 Nishitokuta, Yahaba, Iwate 028-3694, Japan
| | - Mayu Fujimoto
- School of Pharmacy, Iwate Medical University, 2-1-1 Nishitokuta, Yahaba, Iwate 028-3694, Japan
| | - Koji Inaka
- Maruwa Foods and Biosciences Inc., 170-1 Tsutsui-cho, Yamatokoriyama, Nara 639-1123, Japan
| | - Hiroaki Tanaka
- Confocal Science Inc., 2-12-2 Iwamoto-cho, Chiyoda-ku, Tokyo 101-0032, Japan
| | - Mitsugu Yamada
- Japan Aerospace Exploration Agency, 2-1-1 Sengen, Tsukuba, Ibaraki 305-8505, Japan
| | - Kazunori Ohta
- Japan Aerospace Exploration Agency, 2-1-1 Sengen, Tsukuba, Ibaraki 305-8505, Japan
| | - Hiroaki Gouda
- School of Pharmacy, Showa University, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo 142-8555, Japan
| | - Takamasa Nonaka
- School of Pharmacy, Iwate Medical University, 2-1-1 Nishitokuta, Yahaba, Iwate 028-3694, Japan
| | - Wataru Ogasawara
- Department of Bioengineering, Nagaoka University of Technology, 1603-1 Kamitomioka, Nagaoka, Niigata 940-2188, Japan
| | - Nobutada Tanaka
- School of Pharmacy, Showa University, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo 142-8555, Japan
| |
Collapse
|
99
|
Potgieter M, Bester J, Kell DB, Pretorius E. The dormant blood microbiome in chronic, inflammatory diseases. FEMS Microbiol Rev 2015; 39:567-91. [PMID: 25940667 PMCID: PMC4487407 DOI: 10.1093/femsre/fuv013] [Citation(s) in RCA: 269] [Impact Index Per Article: 29.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/02/2015] [Indexed: 02/07/2023] Open
Abstract
Blood in healthy organisms is seen as a ‘sterile’ environment: it lacks proliferating microbes. Dormant or not-immediately-culturable forms are not absent, however, as intracellular dormancy is well established. We highlight here that a great many pathogens can survive in blood and inside erythrocytes. ‘Non-culturability’, reflected by discrepancies between plate counts and total counts, is commonplace in environmental microbiology. It is overcome by improved culturing methods, and we asked how common this would be in blood. A number of recent, sequence-based and ultramicroscopic studies have uncovered an authentic blood microbiome in a number of non-communicable diseases. The chief origin of these microbes is the gut microbiome (especially when it shifts composition to a pathogenic state, known as ‘dysbiosis’). Another source is microbes translocated from the oral cavity. ‘Dysbiosis’ is also used to describe translocation of cells into blood or other tissues. To avoid ambiguity, we here use the term ‘atopobiosis’ for microbes that appear in places other than their normal location. Atopobiosis may contribute to the dynamics of a variety of inflammatory diseases. Overall, it seems that many more chronic, non-communicable, inflammatory diseases may have a microbial component than are presently considered, and may be treatable using bactericidal antibiotics or vaccines. Atopobiosis of microbes (the term describing microbes that appear in places other than where they should be), as well as the products of their metabolism, seems to correlate with, and may contribute to, the dynamics of a variety of inflammatory diseases.
Collapse
Affiliation(s)
- Marnie Potgieter
- Department of Physiology, Faculty of Health Sciences, University of Pretoria, Arcadia 0007, South Africa
| | - Janette Bester
- Department of Physiology, Faculty of Health Sciences, University of Pretoria, Arcadia 0007, South Africa
| | - Douglas B Kell
- School of Chemistry and The Manchester Institute of Biotechnology, The University of Manchester, 131, Princess St, Manchester M1 7DN, Lancs, UK
| | - Etheresia Pretorius
- Department of Physiology, Faculty of Health Sciences, University of Pretoria, Arcadia 0007, South Africa
| |
Collapse
|
100
|
Sanchez-Torres D, Gutierrez-Bejarano D, Hurtado-Roca Y, Guallar-Castillon P, Muntner P, Laclaustra M. Non-linear association of periodontal pathogen antibodies with mortality. Int J Cardiol 2015; 187:628-36. [DOI: 10.1016/j.ijcard.2015.03.315] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2014] [Revised: 03/18/2015] [Accepted: 03/20/2015] [Indexed: 12/01/2022]
|