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Tan PR, Lee AJL, Zhao JJ, Chan YH, Fu JH, Ma M, Tay SH. Higher odds of periodontitis in systemic lupus erythematosus compared to controls and rheumatoid arthritis: a systematic review, meta-analysis and network meta-analysis. Front Immunol 2024; 15:1356714. [PMID: 38629069 PMCID: PMC11019014 DOI: 10.3389/fimmu.2024.1356714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2023] [Accepted: 03/18/2024] [Indexed: 04/19/2024] Open
Abstract
Introduction Periodontitis as a comorbidity in systemic lupus erythematosus (SLE) is still not well recognized in the dental and rheumatology communities. A meta-analysis and network meta-analysis were thus performed to compare the (i) prevalence of periodontitis in SLE patients compared to those with rheumatoid arthritis (RA) and (ii) odds of developing periodontitis in controls, RA, and SLE. Methods Pooled prevalence of and odds ratio (OR) for periodontitis were compared using meta-analysis and network meta-analysis (NMA). Results Forty-three observational studies involving 7,800 SLE patients, 49,388 RA patients, and 766,323 controls were included in this meta-analysis. The pooled prevalence of periodontitis in SLE patients (67.0%, 95% confidence interval [CI] 57.0-77.0%) was comparable to that of RA (65%, 95% CI 55.0-75.0%) (p>0.05). Compared to controls, patients with SLE (OR=2.64, 95% CI 1.24-5.62, p<0.01) and RA (OR=1.81, 95% CI 1.25-2.64, p<0.01) were more likely to have periodontitis. Indirect comparisons through the NMA demonstrated that the odds of having periodontitis in SLE was 1.49 times higher compared to RA (OR=1.49, 95% CI 1.09-2.05, p<0.05). Discussion Given that RA is the autoimmune disease classically associated with periodontal disease, the higher odds of having periodontitis in SLE are striking. These results highlight the importance of addressing the dental health needs of patients with SLE. Systematic review registration https://www.crd.york.ac.uk/PROSPERO/ identifier CRD42021272876.
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Affiliation(s)
- Ping Ren Tan
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Aaron J. L. Lee
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, Singapore
| | - Joseph J. Zhao
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Yiong Huak Chan
- Biostatistics Unit, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Jia Hui Fu
- Faculty of Dentistry, National University of Singapore, Singapore, Singapore
| | - Margaret Ma
- Division of Rheumatology, Department of Medicine, National University Hospital, Singapore, Singapore
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Sen Hee Tay
- Division of Rheumatology, Department of Medicine, National University Hospital, Singapore, Singapore
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
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Nakamura Y, Kulkarni NN, Takahashi T, Alimohamadi H, Dokoshi T, Liu E, Shia M, Numata T, Luo EW, Gombart AF, Yang X, Secrest P, Gordts PL, Tsimikas S, Wong GC, Gallo RL. Increased LL37 in psoriasis and other inflammatory disorders promotes LDL uptake and atherosclerosis. J Clin Invest 2024; 134:e172578. [PMID: 38194294 PMCID: PMC10904043 DOI: 10.1172/jci172578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Accepted: 01/05/2024] [Indexed: 01/10/2024] Open
Abstract
Patients with chronic inflammatory disorders such as psoriasis have an increased risk of cardiovascular disease and elevated levels of LL37, a cathelicidin host defense peptide that has both antimicrobial and proinflammatory properties. To explore whether LL37 could contribute to the risk of heart disease, we examined its effects on lipoprotein metabolism and show that LL37 enhanced LDL uptake in macrophages through the LDL receptor (LDLR), scavenger receptor class B member 1 (SR-B1), and CD36. This interaction led to increased cytosolic cholesterol in macrophages and changes in expression of lipid metabolism genes consistent with increased cholesterol uptake. Structure-function analysis and synchrotron small-angle x-ray scattering showed structural determinants of the LL37-LDL complex that underlie its ability to bind its receptors and promote uptake. This function of LDL uptake is unique to cathelicidins from humans and some primates and was not observed with cathelicidins from mice or rabbits. Notably, Apoe-/- mice expressing LL37 developed larger atheroma plaques than did control mice, and a positive correlation between plasma LL37 and oxidized phospholipid on apolipoprotein B (OxPL-apoB) levels was observed in individuals with cardiovascular disease. These findings provide evidence that LDL uptake can be increased via interaction with LL37 and may explain the increased risk of cardiovascular disease associated with chronic inflammatory disorders.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Adrian F. Gombart
- Linus Pauling Institute, Department of Biochemistry and Biophysics, Oregon State University, Corvallis, Oregon, USA
| | | | - Patrick Secrest
- Department of Medicine, Division of Endocrinology and Metabolism, and
| | - Philip L.S.M. Gordts
- Department of Medicine, Division of Endocrinology and Metabolism, and
- Glycobiology Research and Training Center, UCSD, La Jolla, California, USA
| | | | - Gerard C.L. Wong
- Department of Bioengineering, UCLA, Los Angeles, California, USA
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Lopez-Oliva I, Malcolm J, Culshaw S. Periodontitis and rheumatoid arthritis-Global efforts to untangle two complex diseases. Periodontol 2000 2024. [PMID: 38411247 DOI: 10.1111/prd.12530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2023] [Revised: 08/07/2023] [Accepted: 09/01/2023] [Indexed: 02/28/2024]
Abstract
Understanding the impact of oral health on rheumatoid arthritis (RA) will inform how best to manage patients with both periodontitis and RA. This review seeks to provide an update on interventional and mechanistic investigations, including a brief summary of European Research programs investigating the link between periodontitis and RA. Recent clinical studies are described that evaluate how the treatment of one disease impacts on the other, as are studies in both humans and animal models that have sought to identify the potential mechanisms linking the two diseases.
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Affiliation(s)
- Isabel Lopez-Oliva
- Department of Periodontology, Institute of Dentistry, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Jennifer Malcolm
- Oral Sciences, University of Glasgow Dental School, School of Medicine, Dentistry and Nursing, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
- Centre for Immunobiology, School of Infection and Immunity, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
| | - Shauna Culshaw
- Oral Sciences, University of Glasgow Dental School, School of Medicine, Dentistry and Nursing, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
- Centre for Immunobiology, School of Infection and Immunity, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
- Clinic for Periodontology, Endodontology and Cariology, University Center of Dental Medicine, University of Basel, Basel, Switzerland
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Riaz B, Sohn S. Neutrophils in Inflammatory Diseases: Unraveling the Impact of Their Derived Molecules and Heterogeneity. Cells 2023; 12:2621. [PMID: 37998356 PMCID: PMC10670008 DOI: 10.3390/cells12222621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 11/08/2023] [Accepted: 11/10/2023] [Indexed: 11/25/2023] Open
Abstract
Inflammatory diseases involve numerous disorders and medical conditions defined by an insufficient level of self-tolerance. These diseases evolve over the course of a multi-step process through which environmental variables play a crucial role in the emergence of aberrant innate and adaptive immunological responses. According to experimental data accumulated over the past decade, neutrophils play a significant role as effector cells in innate immunity. However, neutrophils are also involved in the progression of numerous diseases through participation in the onset and maintenance of immune-mediated dysregulation by releasing neutrophil-derived molecules and forming neutrophil extracellular traps, ultimately causing destruction of tissues. Additionally, neutrophils have a wide variety of functional heterogeneity with adverse effects on inflammatory diseases. However, the complicated role of neutrophil biology and its heterogeneity in inflammatory diseases remains unclear. Moreover, neutrophils are considered an intriguing target of interventional therapies due to their multifaceted role in a number of diseases. Several approaches have been developed to therapeutically target neutrophils, involving strategies to improve neutrophil function, with various compounds and inhibitors currently undergoing clinical trials, although challenges and contradictions in the field persist. This review outlines the current literature on roles of neutrophils, neutrophil-derived molecules, and neutrophil heterogeneity in the pathogenesis of autoimmune and inflammatory diseases with potential future therapeutic strategies.
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Affiliation(s)
- Bushra Riaz
- Department of Biomedical Science, Ajou University School of Medicine, Suwon 16499, Republic of Korea;
| | - Seonghyang Sohn
- Department of Biomedical Science, Ajou University School of Medicine, Suwon 16499, Republic of Korea;
- Department of Microbiology, Ajou University School of Medicine, Suwon 16499, Republic of Korea
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Eezammuddeen NN, Vaithilingam RD, Hassan NHM. Influence of periodontitis on levels of autoantibodies in rheumatoid arthritis patients: A systematic review. J Periodontal Res 2023; 58:29-42. [PMID: 36317493 DOI: 10.1111/jre.13065] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 09/16/2022] [Accepted: 10/07/2022] [Indexed: 11/06/2022]
Abstract
BACKGROUND AND OBJECTIVE Periodontitis (PD) is a dysbiotic disease of tooth-supporting structures that has been associated with various systemic diseases including rheumatoid arthritis (RA). To date, evidence demonstrated increased prevalence of RA among PD patients and postulated PD to have a role in the development of autoantibodies in RA patients. Therefore, a systematic review was conducted to assess the available evidence to ascertain the effect of PD on levels of autoantibodies in the serum, saliva and gingival crevicular fluid (GCF) of RA patients. MATERIAL AND METHODS The systematic review was conducted in compliance with Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement guidelines. Relevant literature was searched from PubMed, Web of Science, Scopus and Ebscohost databases from inception until 31 August 2020. The risk of bias in each study was determined based on the Newcastle-Ottawa Scale tool. Results from random-effect meta-analyses were presented as summary estimates of odds ratios (ORs) for seropositivity and standardised mean difference (SMD) of autoantibody levels with 95% confidence intervals. Sensitivity tests and meta-regression were performed to assess the robustness of the results and potential cause of heterogeneity. RESULTS The electronic and manual searches gathered 932 articles. Following screening and full-text assessment, a total of 29 studies were included in the analysis. Twenty-eight published observational studies were included in the quantitative analysis in the form of random-effect meta-analysis which revealed that PD was associated with anti-citrullinated proteins autoantibodies (ACPAs) and Rheumatoid Factor (RF) seropositive RA patients (OR for ACPA seropositivity: 1.82; 95% CI: 1.13-2.93) (OR for RF seropositivity: 1.53; 95% CI: 1.05-2.24). Also, RA patients with PD had increased serum levels of ACPA and RF. However, high heterogeneity among studies' results, partially ascribed to the unstandardised case definition of PD and laboratory testing of autoantibodies. Apart from ACPA and RF in serum, studies which reported on other RA-related autoantibodies, as well as autoantibody levels in saliva and GCF were scarce. CONCLUSION RA patients with PD tend to have greater ACPA and RF levels in their serum when compared with the RA patients without PD supporting the plausible role of PD in the development of systemic autoimmunity in RA patients.
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Affiliation(s)
- Nazurah Nik Eezammuddeen
- Department of Restorative Dentistry, Faculty of Dentistry, Universiti Malaya, Kuala Lumpur, Malaysia.,Centre for Comprehensive Care, Faculty of Dentistry, Universiti Teknologi MARA, Selangor, Malaysia
| | - Rathna Devi Vaithilingam
- Department of Restorative Dentistry, Faculty of Dentistry, Universiti Malaya, Kuala Lumpur, Malaysia
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Chen Q, Yan W, Geng N. The Efficacy of Minocycline Hydrochloride Combined with Multiple Antibiotic Paste in Elderly Patients with Chronic Periodontitis and Concomitant Pulp Lesions. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2022; 2022:7604741. [PMID: 35832529 PMCID: PMC9273348 DOI: 10.1155/2022/7604741] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 05/30/2022] [Accepted: 06/06/2022] [Indexed: 11/25/2022]
Abstract
Objective To explore the efficacy of Minocycline hydrochloride combined with multiple antibiotic pastes in the treatment of chronic periodontitis with concomitant pulp lesions in elderly patients, as well as to analyze the changes in the levels of inflammatory markers. Methods 100 patients suffering from chronic periodontitis with concomitant pulp lesions treated in our hospital from July 2018 to January 2020 were selected as the study subjects, and were randomly assigned to either an experimental group (n = 50) or a control group (n = 50). Patients in the experimental group were treated with Minocycline hydrochloride combined with multiple antibiotic pastes, while those in the control group were treated with Minocycline hydrochloride alone. The treatment efficacy in the two groups was then assessed using such factors as periodontal probing depth, dental plaque index, gingival index, periodontal attachment level, and the presence or absence of adverse effects. We also measured and compared the levels of inflammatory markers such as CRP, TNF-α, IL-1β, IL-5, IL-6, and others in both groups, before treatment, as well as after a week of treatment. Results There was a statistically significant difference in the treatment efficacy between the two groups (P < 0.05), with a higher treatment efficacy seen in the experimental group as compared to the control group. When compared to the control group, the experimental group had lower depths of periodontal probing, lower dental plaque indices, lower gingival indices, lower periodontal attachment levels, as well a significantly lower incidence of adverse reactions (P < 0.05). Before treatment, the levels of inflammatory markers such as CRP, TNF-α, IL-1β, IL-5, and IL-6 were elevated in both groups. After a week of treatment, there were reductions in the levels of inflammatory markers in both groups, but a more significant reduction was seen in the experimental than in the control group (P < 0.05). Conclusion Minocycline hydrochloride combined with various antibiotic pastes is more effective in the treatment of chronic periodontitis with concomitant pulp lesions in elderly patients than monotherapy with Minocycline hydrochloride alone.
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Affiliation(s)
- Qiang Chen
- Department of Periodontics, Suzhou Stomatological Hospital, Suzhou, Jiangsu 215000, China
| | - Wen Yan
- Center of Stomatology, The Second Affiliated Hospital of Soochow University, No 1055 Sanxiang Road, Soochow 215004, China
| | - Nan Geng
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, Jiangsu 210029, China
- Department of TeZhen, Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, China
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Cheah CW, Al-Maleki AR, Vaithilingam RD, Vadivelu J, Sockalingam S, Baharuddin NA, Bartold PM. Associations between inflammation-related LL-37 with subgingival microbial dysbiosis in rheumatoid arthritis patients. Clin Oral Investig 2022; 26:4161-4172. [PMID: 35257247 DOI: 10.1007/s00784-022-04388-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Accepted: 01/11/2022] [Indexed: 12/19/2022]
Abstract
OBJECTIVE This study investigated the subgingival microbial profile of rheumatoid arthritis (RA) patients and its associations with disease parameters and the inflammation-related antimicrobial peptide, LL-37. METHODS RA and non-RA (NRA) patients were assessed for periodontal status and divided into periodontitis (CP), gingivitis (G), and healthy (H) groups. Subgingival plaque 16s rRNA gene sequencing data was processed and analyzed using the CLC Genomic Workbench (Qiagen). Bacterial diversity and co-occurrence patterns were examined. Differential abundance between groups was also investigated. Associations between bacterial genera with disease parameters and LL-37 levels were explored qualitatively using canonical correlation analysis. RESULTS Subgingival microbial community clustered in CP status. Co-occurrence network in NRA-H was dominated by health-associated genera, while the rest of the networks' key genera were both health- and disease-associated. RA-CP displayed highly inter-generic networks with a statistically significant increase in periodontal disease-associated genera (p<0.05). In NRA-H, disease parameters and LL-37 were correlated positively with disease-associated genera while negatively with health-associated genera. However, in the remaining groups, mixed positive and negative correlations were noted with genera. CONCLUSION RA patients demonstrated subgingival microbial dysbiosis where the bacteria networks were dominated by health- and disease-associated genera. Mixed correlations with disease parameters and LL-37 levels were noted. CLINICAL RELEVANCE The subgingival microbial dysbiosis in RA may predispose these patients to developing periodontal inflammation with an associated detrimental effect on host immune responses. Routine periodontal assessment may allow initiation of treatment strategies to minimize the effects of gingival inflammation on the existing heightened immune response present in RA patients.
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Affiliation(s)
- Chia Wei Cheah
- Department of Restorative Dentistry, Faculty of Dentistry, University of Malaya, 50603, Kuala Lumpur, Malaysia
| | - Anis Rageh Al-Maleki
- Department of Medical Microbiology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Rathna Devi Vaithilingam
- Department of Restorative Dentistry, Faculty of Dentistry, University of Malaya, 50603, Kuala Lumpur, Malaysia.
| | - Jamuna Vadivelu
- Department of Medical Microbiology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Sargunan Sockalingam
- Department of Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Nor Adinar Baharuddin
- Department of Restorative Dentistry, Faculty of Dentistry, University of Malaya, 50603, Kuala Lumpur, Malaysia
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Łysakowska ME, Szybka M, Olga B, Moskwa S, Konieczka M, Makowska J, Pastuszak-Lewandoska D. Cytokine and LL-37 gene expression levels in Bartonella spp. seropositive and seronegative patients of a rheumatology clinic. Adv Med Sci 2022; 67:163-169. [PMID: 35279619 DOI: 10.1016/j.advms.2022.02.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2021] [Revised: 02/07/2022] [Accepted: 02/24/2022] [Indexed: 11/01/2022]
Abstract
PURPOSE The variation in the immune response to Bartonella spp. infection in humans remains unclear. The present study compares the expression of selected interleukins, cytokines and cathelicidin (LL-37) in rheumatology clinic patients suffering from musculoskeletal symptoms with healthy blood donors. The patients had previously been tested for the presence of Bartonella henselae antibodies. METHODS Gene expression of LL-37, interleukin (IL)-2, IL-4, IL-6, IL-12, interferon-(IFN)-γ, and tumor necrosis factor (TNF-α)-α was determined in blood samples using quantitative Polymerase Chain Reaction (qPCR). Statistical analysis was prepared with STATISTICA. RESULTS Statistically significant differences in the mRNA levels of the tested cytokines (IFN-γ, TNF-α, IL-2, IL-4, IL-6, IL-12; p<0.0001) were observed between the healthy controls and patients; however, no difference was observed for LL37 mRNA (p = 0.1974). No significant differences in mRNA expression were observed between IgG in anti-Bartonella seropositive and seronegative individuals (p>0.05). The only significant differences between the Bartonella spp. DNA positive and negative patients, indicated by PCR, were observed for TNF-α and IL-12 mRNA (p = 0.0045 and p = 0.0255, respectively). CONCLUSION A broadly similar immune response to the tested cytokines was observed among the participants irrespective of anti-Bartonella spp. IgG seropositivity. However, the Bartonella DNA-positive participants demonstrated significantly lower expression of IL-12 and TNF-α mRNA; this may indicate that these bacteria have a suppressive influence on the immune system.
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Moura MF, Silva TA, Cota LOM, Oliveira SR, Cunha FQ, Ferreira GA, Cortelli JR, Cortelli SC, Costa FO. Nonsurgical periodontal therapy decreases the severity of rheumatoid arthritis and the plasmatic and salivary levels of RANKL and Survivin: a short-term clinical study. Clin Oral Investig 2021; 25:6643-6652. [PMID: 33954850 DOI: 10.1007/s00784-021-03950-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Accepted: 04/16/2021] [Indexed: 01/02/2023]
Abstract
AIM To investigate the influence of nonsurgical periodontal treatment (NSPT) on clinical periodontal status, rheumatoid arthritis (RA) activity, and plasmatic and salivary levels of biomarkers through a controlled clinical trial on individuals with RA and periodontitis (PE). METHODS Sixty-six individuals from a convenience sample were considered eligible and consecutively allocated in 3 groups: (1) individuals without PE and RA (-PE-RA, n = 19); (2) individuals without PE and with RA (-PE+RA, n = 23), and (3) individuals with PE and RA (+PE+RA, n = 24). Full-mouth periodontal clinical examinations, Disease Activity Score (DAS-28) evaluations, and analysis in plasma and saliva of RANKL, OPG, RANKL/OPG, and Survivin were performed at baseline (T1) and 45 days after NSPT (T2). RESULTS NSPT in the +PE+RA group was very effective to improve periodontal condition. At T2, significant reductions in DAS-28 were observed in +PE+RA (p = 0.011). Significantly higher levels of Survivin and RANKL were observed in saliva and plasma from RA individuals (with and without PE) compared to controls. Additionally, Survivin e RANKL demonstrated positive correlations with DAS-28 and an expressively significant reduction in +PE+RA at T2 (p < 0.001). CONCLUSIONS NSPT was effective on improving both the periodontal and the RA clinical status and reducing the concentration of Survivin and RANKL in saliva and plasma. PRACTICAL IMPLICATIONS Nonsurgical periodontal treatment was effective on reducing the concentration of Survivin and RANKL and on improving both the periodontal and the RA clinical status of affected individuals. TRIAL REGISTRATION Brazilian Registry of Clinical Trials (ReBEC) protocol #RBR-8g2bc8 ( http://www.ensaiosclinicos.gov.br/rg/RBR-8g2bc8/ ).
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Affiliation(s)
- Marcela Faria Moura
- Department of Dental Clinics, Oral Pathology, and Oral Surgery, School of Dentistry, Federal University of Minas Gerais (UFMG), Belo Horizonte, Minas Gerais, Brazil
| | - Tarcília Aparecida Silva
- Department of Dental Clinics, Oral Pathology, and Oral Surgery, School of Dentistry, Federal University of Minas Gerais (UFMG), Belo Horizonte, Minas Gerais, Brazil
| | - Luís Otávio Miranda Cota
- Department of Dental Clinics, Oral Pathology, and Oral Surgery, School of Dentistry, Federal University of Minas Gerais (UFMG), Belo Horizonte, Minas Gerais, Brazil
| | - Sicilia Rezende Oliveira
- Department of Dental Clinics, Oral Pathology, and Oral Surgery, School of Dentistry, Federal University of Minas Gerais (UFMG), Belo Horizonte, Minas Gerais, Brazil
| | | | - Gilda Aparecida Ferreira
- School of Medicine, Federal University of Minas Gerais (UFMG), Belo Horizonte, Minas Gerais, Brazil
| | - José Roberto Cortelli
- Departament of Dentistry, Periodontics Research Division, University of Taubaté, São Paulo, Brazil
| | - Sheila Cavalca Cortelli
- Departament of Dentistry, Periodontics Research Division, University of Taubaté, São Paulo, Brazil
| | - Fernando Oliveira Costa
- Department of Dental Clinics, Oral Pathology, and Oral Surgery, School of Dentistry, Federal University of Minas Gerais (UFMG), Belo Horizonte, Minas Gerais, Brazil. .,Faculty of Dentistry, Department of Periodontology, Federal University of Minas Gerais, Antônio Carlos Avenue, 6627, Pampulha, PO Box 359, Belo Horizonte, Minas Gerais, Zip Code 31270-901, Brazil.
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Wuersching SN, Huth KC, Hickel R, Kollmuss M. Inhibitory effect of LL-37 and human lactoferricin on growth and biofilm formation of anaerobes associated with oral diseases. Anaerobe 2020; 67:102301. [PMID: 33249255 DOI: 10.1016/j.anaerobe.2020.102301] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 11/20/2020] [Accepted: 11/23/2020] [Indexed: 01/24/2023]
Abstract
This study was conducted to evaluate the antimicrobial potential of the antimicrobial peptides (AMP) LL-37 and human Lactoferricin (LfcinH) on the planktonic growth and biofilm formation of oral pathogenic anaerobes related to caries and periodontitis. Multi-species bacterial suspensions of either facultative anaerobic bacteria (FAB: Streptococcus mutans, Streptococcus sanguinis, Actinomyces naeslundii) or obligate anaerobic bacteria (OAB: Veillonella parvula, Parvimonas micra, Fusobacterium nucleatum) were incubated with different concentrations of AMP solutions for 8 h. Planktonic growth was registered with an ATP-based cell viability assay for FAB and via plate counting for OAB. Biofilms were grown on ZrO2 discs for 4 days in a mixture of the multi-species bacterial suspensions and AMP solutions. Biofilm mass was quantified using a microtiter plate biofilm assay with crystal violet staining. An overall planktonic growth inhibition and biofilm mass reduction of FAB and OAB was registered for LL-37 and LfcinH. Significant inhibitory threshold concentrations of LL-37 were observed in all experiments (p < 0.0001). No significant threshold was observed for LfcinH. Biofilm mass of OAB was barely reduced by LfcinH. The complete mechanisms of the AMPs are not fully understood yet. While LL-37 shows promising features as potential therapeutic for biofilm-associated oral diseases, LfcinH seems unsuitable for this particular indication. For clinical AMP use, further investigations will be necessary.
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Affiliation(s)
- Sabina Noreen Wuersching
- Department of Conservative Dentistry and Periodontology, University Hospital, LMU Munich, Goethestraße 70, 80336, Munich, Germany
| | - Karin Christine Huth
- Department of Conservative Dentistry and Periodontology, University Hospital, LMU Munich, Goethestraße 70, 80336, Munich, Germany
| | - Reinhard Hickel
- Department of Conservative Dentistry and Periodontology, University Hospital, LMU Munich, Goethestraße 70, 80336, Munich, Germany
| | - Maximilian Kollmuss
- Department of Conservative Dentistry and Periodontology, University Hospital, LMU Munich, Goethestraße 70, 80336, Munich, Germany.
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