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Gorantla K, Krishnan A, Waheed SO, Varghese A, DiCastri I, LaRouche C, Paik M, Fields GB, Karabencheva-Christova TG. Novel Insights into the Catalytic Mechanism of Collagenolysis by Zn(II)-Dependent Matrix Metalloproteinase-1. Biochemistry 2024; 63:1925-1940. [PMID: 38963231 PMCID: PMC11309001 DOI: 10.1021/acs.biochem.4c00076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Revised: 06/14/2024] [Accepted: 06/24/2024] [Indexed: 07/05/2024]
Abstract
Collagen hydrolysis, catalyzed by Zn(II)-dependent matrix metalloproteinases (MMPs), is a critical physiological process. Despite previous computational investigations into the catalytic mechanisms of MMP-mediated collagenolysis, a significant knowledge gap in understanding remains regarding the influence of conformational sampling and entropic contributions at physiological temperature on enzymatic collagenolysis. In our comprehensive multilevel computational study, employing quantum mechanics/molecular mechanics (QM/MM) metadynamics (MetD) simulations, we aimed to bridge this gap and provide valuable insights into the catalytic mechanism of MMP-1. Specifically, we compared the full enzyme-substrate complex in solution, clusters in solution, and gas-phase to elucidate insights into MMP-1-catalyzed collagenolysis. Our findings reveal significant differences in the catalytic mechanism when considering thermal effects and the dynamic evolution of the system, contrasting with conventional static potential energy surface QM/MM reaction path studies. Notably, we observed a significant stabilization of the critical tetrahedral intermediate, attributed to contributions from conformational flexibility and entropy. Moreover, we found that protonation of the scissile bond nitrogen occurs via proton transfer from a Zn(II)-coordinated hydroxide rather than from a solvent water molecule. Following C-N bond cleavage, the C-terminus remains coordinated to the catalytic Zn(II), while the N-terminus forms a hydrogen bond with a solvent water molecule. Subsequently, the release of the C-terminus is facilitated by the coordination of a water molecule. Our study underscores the pivotal role of protein conformational dynamics at physiological temperature in stabilizing the transition state of the rate-limiting step and key intermediates, compared to the corresponding reaction in solution. These fundamental insights into the mechanism of collagen degradation provide valuable guidance for the development of MMP-1-specific inhibitors.
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Affiliation(s)
- Koteswara
Rao Gorantla
- Department
of Chemistry, Michigan Technological University, Houghton, Michigan 49931, United States
| | - Anandhu Krishnan
- Department
of Chemistry, Michigan Technological University, Houghton, Michigan 49931, United States
| | - Sodiq O. Waheed
- Department
of Chemistry, Michigan Technological University, Houghton, Michigan 49931, United States
| | - Ann Varghese
- Department
of Chemistry, Michigan Technological University, Houghton, Michigan 49931, United States
| | - Isabella DiCastri
- Department
of Chemical Engineering, Michigan Technological
University, Houghton, Michigan 49931, United States
| | - Ciara LaRouche
- Department
of Chemical Engineering, Michigan Technological
University, Houghton, Michigan 49931, United States
| | - Meredith Paik
- Department
of Chemistry, Michigan Technological University, Houghton, Michigan 49931, United States
| | - Gregg B. Fields
- Department
of Chemistry and Biochemistry and I-HEALTH, Florida Atlantic University, Jupiter, Florida 33458, United States
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Peng S, Fu H, Li R, Li H, Wang S, Li B, Sun J. A new direction in periodontitis treatment: biomaterial-mediated macrophage immunotherapy. J Nanobiotechnology 2024; 22:359. [PMID: 38907216 PMCID: PMC11193307 DOI: 10.1186/s12951-024-02592-4] [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: 12/25/2023] [Accepted: 05/28/2024] [Indexed: 06/23/2024] Open
Abstract
Periodontitis is a chronic inflammation caused by a bacterial infection and is intimately associated with an overactive immune response. Biomaterials are being utilized more frequently in periodontal therapy due to their designability and unique drug delivery system. However, local and systemic immune response reactions driven by the implantation of biomaterials could result in inflammation, tissue damage, and fibrosis, which could end up with the failure of the implantation. Therefore, immunological adjustment of biomaterials through precise design can reduce the host reaction while eliminating the periodontal tissue's long-term chronic inflammation response. It is important to note that macrophages are an active immune system component that can participate in the progression of periodontal disease through intricate polarization mechanisms. And modulating macrophage polarization by designing biomaterials has emerged as a new periodontal therapy technique. In this review, we discuss the role of macrophages in periodontitis and typical strategies for polarizing macrophages with biomaterials. Subsequently, we discuss the challenges and potential opportunities of using biomaterials to manipulate periodontal macrophages to facilitate periodontal regeneration.
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Affiliation(s)
- Shumin Peng
- Department of Stomatology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 45000, China
- Academy of Medical Sciences at Zhengzhou University, Zhengzhou, 45000, China
| | - Haojie Fu
- Department of Stomatology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 45000, China
- Academy of Medical Sciences at Zhengzhou University, Zhengzhou, 45000, China
| | - Rui Li
- Department of Stomatology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 45000, China
| | - Hui Li
- Beijing Shijitan Hospital, Capital Medical University, Beijing, 100069, China
| | - Shuyuan Wang
- Department of Stomatology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 45000, China
- Academy of Medical Sciences at Zhengzhou University, Zhengzhou, 45000, China
| | - Bingyan Li
- Department of Stomatology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 45000, China
- Academy of Medical Sciences at Zhengzhou University, Zhengzhou, 45000, China
| | - Jingjing Sun
- Department of Stomatology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 45000, China.
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3
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Hsu YT, Chang AM, Daubert D, Roberts F, Chen D, Trivedi HM, Gomez J, Darveau RP. Inflammation and tissue remodeling mediator expression during gingivitis: A comparison between experimental, naturally occurring gingivitis, and periodontal health. J Periodontol 2024. [PMID: 38708772 DOI: 10.1002/jper.23-0692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 03/19/2024] [Accepted: 03/21/2024] [Indexed: 05/07/2024]
Abstract
BACKGROUND The aim of this study is to evaluate the immune regulation and tissue remodeling responses during experimental gingivitis (EG) and naturally occurring gingivitis (NG) to provide a comprehensive analysis of host responses. Gingival crevicular fluid (GCF) was obtained from 2 human studies conducted in university settings. METHODS The EG study enrolling 26 volunteers provided controls for the baseline (Day 0) from healthy disease-free participants, while Day 21 (the end of EG induction of the same group) was used to represent EG. Twenty-six NG participants age-matched with those of the EG group were recruited. GCF samples were analyzed for 39 mediators of inflammatory/immune responses and tissue remodeling using commercially available bead-based multiplex immunoassays. The differences in GI and mediator expression among groups were determined at a 95% confidence level (p ≤ 0.05) by a 2-way analysis of variance (ANOVA) with a post-hoc Tukey's test. RESULTS Our findings showed that EG had a greater gingival index than NG and was healthy (p < 0.01 of all comparisons). Furthermore, EG showed significantly higher levels of MPO (p < 0.001), CCL3 (p < 0.05), and IL-1B (p < 0.001) than NG. In contrast, NG had increased levels of MIF (p < 0.05), Fractalkine (p < 0.001), angiogenin (p < 0.05), C3a (p < 0.001), BMP-2 (p < 0.001), OPN (p < 0.05), RANKL (p < 0.001), and MMP-13 (p < 0.001) than EG. CONCLUSIONS Consistent with the findings from chronic (NG) versus acute (EG) inflammatory lesions, these data reveal that NG displays greater immune regulation, angiogenesis, and bone remodeling compared to EG.
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Affiliation(s)
- Yung-Ting Hsu
- Department of Periodontics, University of Washington School of Dentistry, Seattle, Washington, USA
| | - Ana M Chang
- Department of Periodontics, University of Washington School of Dentistry, Seattle, Washington, USA
- College of Osteopathic Medicine, Pacific Northwest University of Health Sciences, Yakima, Washington, USA
| | - Diane Daubert
- Department of Periodontics, University of Washington School of Dentistry, Seattle, Washington, USA
| | - Frank Roberts
- Department of Periodontics, University of Washington School of Dentistry, Seattle, Washington, USA
| | - Dandan Chen
- Department of Periodontics, University of Washington School of Dentistry, Seattle, Washington, USA
| | - Harsh M Trivedi
- Department of Periodontics, University of Washington School of Dentistry, Seattle, Washington, USA
| | - Juliana Gomez
- Department of Periodontics, University of Washington School of Dentistry, Seattle, Washington, USA
| | - Rich P Darveau
- Department of Periodontics, University of Washington School of Dentistry, Seattle, Washington, USA
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Ko YC, Lee J, Lee D, Seol YJ, Lee YM, Koo KT. Diagnostic performance of a point-of-care test device for periodontitis using human saliva: a single-center, single-blinded, confirmatory study. Clin Oral Investig 2023; 28:27. [PMID: 38147192 DOI: 10.1007/s00784-023-05443-y] [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: 09/21/2023] [Accepted: 12/17/2023] [Indexed: 12/27/2023]
Abstract
OBJECTIVE Recently, matrix metalloproteinase-8 (MMP-8) has been used to diagnose periodontal disease in a point-of-care (POC) test in order to save time and cost relative to the traditional diagnostic workflow. This study aimed to investigate the diagnostic performance of INCLIX TRF MMP-8, a POC testing device for periodontitis using the area under the receiver operating characteristic curve, sensitivity, specificity, and predictive values. MATERIALS AND METHODS Full-mouth periodontal examination and radiographic analysis were used for evaluating periodontal condition based on the 2018 classification of periodontal disease. A dichotomous diagnosis of clinical periodontal condition was performed using the POC device. The relationships among periodontal condition and the concentration of MMP-8, tooth loss (TL), gingival index (GI), plaque index (PI), and alveolar bone loss (ABL) were assessed by the Spearman rank correlations (rs). RESULTS In all, 108 cases of non-periodontitis (NP) and 191 cases of periodontitis (P), including 38 cases of periodontitis stage I, 42 cases of periodontitis stage II, 99 cases of periodontitis stage III, and 11 cases of periodontitis stage IV, were enrolled in this study. Diagnostic accuracy in assessing periodontal condition with the POC device improved when it was used with participants aged ≥ 40 years. There were weak positive correlations between periodontal condition and MMP-8 and between periodontal condition and GI (rs2 = 0.1124 and rs2 = 0.0906, respectively), whereas a strong positive correlation between periodontal condition and alveolar bone loss (rs2 = 0.6877) was observed. CONCLUSION The POC device investigated in this study is a potential tool to distinguish between NP and P in individuals ≥ 40 years of age.
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Affiliation(s)
- Young-Chang Ko
- Department of Periodontology, School of Dentistry and Dental Research Institute, Seoul National University, 101, Daehak-ro, Jongno-gu, Seoul, 03080, Republic of Korea
| | - Jungwon Lee
- Department of Periodontology, School of Dentistry and Dental Research Institute, Seoul National University, 101, Daehak-ro, Jongno-gu, Seoul, 03080, Republic of Korea.
- One-Stop Specialty Center, Seoul National University Dental Hospital, 101, Daehak-ro, Jongno-gu, Seoul, 03080, Republic of Korea.
| | - Dongseob Lee
- Department of Periodontology, School of Dentistry and Dental Research Institute, Seoul National University, 101, Daehak-ro, Jongno-gu, Seoul, 03080, Republic of Korea
- National Dental Care Center for Persons with Special Needs, Seoul National University Dental Hospital, 101, Daehak-ro, Jongno-gu, Seoul, 03080, Republic of Korea
| | - Yang-Jo Seol
- Department of Periodontology, School of Dentistry and Dental Research Institute, Seoul National University, 101, Daehak-ro, Jongno-gu, Seoul, 03080, Republic of Korea
| | - Yong-Moo Lee
- Department of Periodontology, School of Dentistry and Dental Research Institute, Seoul National University, 101, Daehak-ro, Jongno-gu, Seoul, 03080, Republic of Korea
| | - Ki-Tae Koo
- Department of Periodontology, School of Dentistry and Dental Research Institute, Seoul National University, 101, Daehak-ro, Jongno-gu, Seoul, 03080, Republic of Korea.
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5
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Sarac Gul Y, Kose O, Altin A, Yemenoglu H, Arslan H, Akyildiz K, Yilmaz A. Melatonin supports nonsurgical periodontal treatment in patients with Type 2 diabetes mellitus and periodontitis: A randomized clinical trial. J Periodontol 2023. [PMID: 38055628 DOI: 10.1002/jper.23-0335] [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: 06/02/2023] [Revised: 11/06/2023] [Accepted: 11/10/2023] [Indexed: 12/08/2023]
Abstract
BACKGROUND Diabetes mellitus (DM)-associated hyperinflammatory host response significantly provokes periodontal tissue destruction. In this context, the support of nonsurgical periodontal therapy in diabetics with host modulation agents is a current field of study. This clinical study aims to investigate the clinical efficacy of melatonin supplementation and discuss its possible biological mechanisms in nonsurgical periodontal treatment in patients with DM and periodontitis through some fundamental markers. METHODS In this randomized controlled and single-blind study, 27 of 55 diabetic patients with periodontitis (stage III/IV and grade C) underwent full-mouth scaling and root planing (fmSRP) alone and 28 patients underwent melatonin administration (6 mg daily, 30 days) in addition to fmSRP (full-mouth scaling and root planing plus melatonin, fmSRP-mel). The potential therapeutic contribution of melatonin was evaluated clinically and biochemically (gingival crevicular fluid RANKL, OPG, MMP-8, and serum IL-1β levels) at 3rd and 6th months. RESULTS Melatonin (tablet, 6 mg daily, 30 days) did not cause any local or systemic side effects. fmSRP alone resulted in significant reduction in serum IL-1β levels, pocket depths, gingival inflammation, and gingival crevicular fluid RANKL and MMP-8 levels (p < 0.05). Moreover, melatonin supplementation resulted in a more significant decrease in bleeding and pocket depth scores at probing, especially at 3 months (p < 0.05). Furthermore, RANKL and MMP-8 levels were significantly lower at 3 months and IL-1β levels at 6 months compared to the control group (p < 0.05). However, OPG levels were not affected significantly by the treatments (p > 0.05). CONCLUSION Melatonin, as a host modulation agent, significantly increases the clinical efficacy of fmSRP. The reduction in periodontal inflammation and pocket depths may be a result of marked suppression of RANKL-associated osteoclastogenesis and extracellular matrix damage by melatonin.
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Affiliation(s)
- Yagmur Sarac Gul
- School of Dentistry, Department of Periodontology, Recep Tayyip Erdogan University, Rize, Turkey
| | - Oguz Kose
- School of Dentistry, Department of Periodontology, Recep Tayyip Erdogan University, Rize, Turkey
| | - Ahmet Altin
- School of Dentistry, Department of Periodontology, Istanbul Kent University, Istanbul, Turkey
| | - Hatice Yemenoglu
- School of Dentistry, Department of Periodontology, Recep Tayyip Erdogan University, Rize, Turkey
| | - Hatice Arslan
- School of Dentistry, Department of Periodontology, Recep Tayyip Erdogan University, Rize, Turkey
| | - Kerimali Akyildiz
- School of Vocational Health Care Services, Department of Medical Services and Techniques, Recep Tayyip Erdogan University, Rize, Turkey
| | - Adnan Yilmaz
- School of Medicine, Department of Biochemistry, Recep Tayyip Erdogan University, Rize, Turkey
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6
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Leppilahti JM, Tervahartiala T, Kautiainen H, Räisänen I, Ahonen M, Uitto V, Sorsa T, Mäntylä P. Correlations between different protein species of oral rinse MMP-8 and patient-related factors. Clin Exp Dent Res 2023; 9:1021-1033. [PMID: 37877535 PMCID: PMC10728547 DOI: 10.1002/cre2.803] [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: 05/09/2023] [Revised: 09/25/2023] [Accepted: 10/12/2023] [Indexed: 10/26/2023] Open
Abstract
OBJECTIVES The aim of this study is to examine correlations between different oral rinse matrix metalloproteinase (MMP)-8 protein species in western blot (WB) analysis, quantitative MMP-8 measurements, and patient-related factors. Elevated activated MMP-8 (aMMP-8) associate with periodontitis and a diagnostic point-of-care technology has been developed based on aMMP-8. In WB, different MMP-8 protein species can be analyzed. Relative abundancy of fragmented 20-25 kDa forms in WB has been associated with and reflects MMP-8 activation and related fragmentation and elevated quantitative aMMP-8 measurements. MATERIAL AND METHODS A random sample of 192 participants from a periodontal disease screening study was used for this study. Oral rinse samples for biomarker analyses were collected before clinical periodontal examinations. aMMP-8 immunofluorometric (IFMA) and WB analysis (utilizing the same monoclonal antibody, 8708), polymorphonuclear leukocyte (PMN) elastase activity test and tissue inhibitor of metalloproteinases (TIMP)-1 ELISA levels were performed from the oral rinse samples. Distinct MMP-8 protein species were differentiated in the WB analysis. Principal component (PC) analysis was conducted to explore correlation patterns between the different species. Adjusted correlation analysis between the extracted PCs of WB and aMMP-8 IFMA levels and multilevel regression analysis were conducted to explore if the other periodontal disease-related biomarkers and clinical surrogate measures and patient-related factors are co-variating with the extracted components. RESULTS Distinct correlation patterns between the MMP-8 protein species were observed. The first four PCs explained 89% of the whole variance in PC analysis. Statistically significant correlation (p < 0.05) were observed as follows: PC1 positively with 21 kDa (r = .69) and 25 kDa fragments (r = .55) and negatively with 150 kDa complexes (r = -.46). PC2 correlated with 45 (r = .70) and 55 kDa (r = .65) activated forms, PC3 with 70-80 kDa latent proforms (r = .63) and 90-100 kDa complexes (r = .67), and PC4 with 35 kDa fragments (r = .81). There were significant correlations between quantitative (IFMA) aMMP-8 measurements and PC1 (p < 0.001), PC2 (<0.05) and PC3 (<0.05) but not with PC4. In multilevel regression models age, PMN elastase activity, TIMP-1 levels, and a number of 4-5 mm periodontal pockets were associated with PC1, nonsmoking with PC2, age and PMN elastase activity with PC3, and age and smoking with PC4. CONCLUSIONS Relative abundancy of fragmented 21-25 kDa protein species was correlated with the quantitative aMMP-8 (IFMA) measurements, which is in line with previous results. Different patient-related factors (smoking, age, proteolytic activity) may modify the formation of different MMP-8 protein species in oral rinse samples and may cause variability in quantitative aMMP-8 measurement.
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Affiliation(s)
- Jussi M. Leppilahti
- Research Unit of Population Health, Faculty of MedicineUniversity of OuluOuluFinland
| | - Taina Tervahartiala
- Department of Oral and Maxillofacial DiseasesUniversity of Helsinki and Helsinki University HospitalHelsinkiFinland
| | - Hannu Kautiainen
- Primary Health Care UnitKuopio University HospitalKuopioFinland
- Folkhälsan Research CenterHelsinkiFinland
| | - Ismo Räisänen
- Department of Oral and Maxillofacial DiseasesUniversity of Helsinki and Helsinki University HospitalHelsinkiFinland
| | - Minna‐Maija Ahonen
- Unit of Dental Health Care ServicesKeski‐Uudenmaan hyvinvointialue (KEUSOTE)HyvinkääFinland
| | - Veli‐Jukka Uitto
- Department of Oral and Maxillofacial DiseasesUniversity of Helsinki and Helsinki University HospitalHelsinkiFinland
| | - Timo Sorsa
- Department of Oral and Maxillofacial DiseasesUniversity of Helsinki and Helsinki University HospitalHelsinkiFinland
- Division of Periodontology, Department of Dental MedicineKarolinska InstitutetStockholmSweden
| | - Päivi Mäntylä
- Institute of DentistryUniversity of Eastern FinlandKuopioFinland
- Oral and Maxillofacial DiseasesKuopio University HospitalKuopioFinland
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Räisänen IT, Aji NRAS, Sakellari D, Grigoriadis A, Rantala I, Pätilä T, Heikkilä P, Gupta S, Sorsa T. Active Matrix Metalloproteinase-8 (aMMP-8) Versus Total MMP-8 in Periodontal and Peri-Implant Disease Point-of-Care Diagnostics. Biomedicines 2023; 11:2885. [PMID: 38001886 PMCID: PMC10669684 DOI: 10.3390/biomedicines11112885] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 10/13/2023] [Accepted: 10/18/2023] [Indexed: 11/26/2023] Open
Abstract
Active matrix metalloproteinase-8 (aMMP-8) is a promising biomarker candidate for the modern periodontal and peri-implant disease diagnostics utilizing the chairside/point-of-care oral fluid technologies. These rapid biomarker analysis technologies utilize gingival crevicular fluid (GCF), peri-implant sulcular fluid (PISF), or mouth rinse as the oral fluid matrices that can be collected patient-friendly and non-invasively without causing bacteremia. aMMP-8, but not total or latent proMMP-8, has been shown to be a relevant biomarker to be implemented to the latest 2017 classification system of periodontitis and peri-implantitis. Thus, aMMP-8 point-of-care-testing (POCT)-but not total or latent proMMP-8-can be conveniently used as an adjunctive and preventive diagnostic tool to identify and screen the developing and ongoing periodontal and peri-implant breakdown and disease as well as predict its episodic progression. Similarly, aMMP-8 POCT provides an important tool to monitor the treatment effect of these diseases, but also other diseases such as head and neck cancer, where it can identify and predict the rapid tissue destructive oral side-effects during and after the radiotherapy. Additionally, recent studies support aMMP-8 POCT benefitting the identification of periodontitis and diabetes as the escalating risk diseases for COVID-19 infection. Overall, aMMP-8 POCT has launched a new clinical field in oral medicine and dentistry, i.e., oral clinical chemistry.
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Affiliation(s)
- Ismo T. Räisänen
- Department of Oral and Maxillofacial Diseases, Head and Neck Center, University of Helsinki and Helsinki University Hospital, 00290 Helsinki, Finland
| | - Nur Rahman Ahmad Seno Aji
- Department of Oral and Maxillofacial Diseases, Head and Neck Center, University of Helsinki and Helsinki University Hospital, 00290 Helsinki, Finland
- Department of Periodontics, Faculty of Dentistry, Universitas Gadjah Mada, Jalan Denta No.1 Sekip Utara, Sleman, Yogyakarta 55281, Indonesia
| | - Dimitra Sakellari
- Department of Preventive Dentistry, Periodontology and Implant Biology, Faculty of Health Sciences, Dental School, Aristotle University of Thessaloniki, 541 24 Thessaloniki, Greece
| | - Andreas Grigoriadis
- Department of Preventive Dentistry, Periodontology and Implant Biology, Faculty of Health Sciences, Dental School, Aristotle University of Thessaloniki, 541 24 Thessaloniki, Greece
- Dental Sector, 424 General Military Training Hospital, 564 29 Thessaloniki, Greece
| | - Iina Rantala
- Department of Oral and Maxillofacial Diseases, Head and Neck Center, University of Helsinki and Helsinki University Hospital, 00290 Helsinki, Finland
| | - Tommi Pätilä
- Department of Pediatric Surgery, New Children’s Hospital, University of Helsinki and Helsinki University Hospital, 00290 Helsinki, Finland
| | - Pia Heikkilä
- Department of Oral and Maxillofacial Diseases, Head and Neck Center, University of Helsinki and Helsinki University Hospital, 00290 Helsinki, Finland
| | - Shipra Gupta
- Oral Health Sciences Centre, Post Graduate Institute of Medical Education & Research (PGIMER), Chandigarh 160012, India
| | - Timo Sorsa
- Department of Oral and Maxillofacial Diseases, Head and Neck Center, University of Helsinki and Helsinki University Hospital, 00290 Helsinki, Finland
- Department of Oral Diseases, Karolinska Institutet, 171 77 Stockholm, Sweden
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8
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Lähteenmäki H, Pätilä T, Pärnänen CP, Räisänen I, Tervahartiala T, Gupta S, Sorsa T. aMMP-8 point-of-care - diagnostic methods and treatment modalities in periodontitis and peri-implantitis. Expert Opin Ther Targets 2023; 27:627-637. [PMID: 37522314 DOI: 10.1080/14728222.2023.2240014] [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: 04/19/2023] [Accepted: 07/19/2023] [Indexed: 08/01/2023]
Abstract
INTRODUCTION When collected in a standardized fashion, oral fluid analysis can refine the diagnosis of periodontal and peri-implant disease. In practice, dental professionals can perform active matrix metalloproteinase (aMMP-8) analysis chairside. AREAS COVERED Periodontal tissues are mainly made up of type I collagen, and collagen breakdown is one of the main events in periodontal and peri-implantitis destructive lesions. In addition to traditional measurements, their diagnosis can be refined with tests utilizing oral fluids. The active matrix metalloproteinase-8 (aMMP-8) is possible to be determined from the gingival crevicular fluid (GCF), peri-implant sulcus fluid (PISF), and other oral fluids such as mouth rinse and saliva. We also investigated the applicability of aMMP-8 chair-side test kits in the evaluation of oral health benefits of different adjunctive host-modulating periodontal therapies including fermented lingonberry mouthwash (FLJ) and antibacterial photodynamic therapy (aPDT). EXPERT OPINION The aMMP-8 levels can more reliably detect early activation of periodontal and peri-implant disease as compared to traditional diagnostic methods that assess the experienced health status or past disease, rather than the present or future pathology. Novel therapies like, fermented lingonberry juice as a mouthrinse or aPDT, are potential host-modulating adjunctive treatments to reduce the signs of oral inflammation and infection.
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Affiliation(s)
- Hanna Lähteenmäki
- Department of Oral and Maxillofacial Diseases, University of Helsinki, Helsinki University Central Hospital, Helsinki, Finland
| | - Tommi Pätilä
- Department of Pediatric Heart Surgery and Organ Transplantation, New Children's Hospital, Helsinki University, Helsinki, Finland
| | - C Pirjo Pärnänen
- Department of Oral and Maxillofacial Diseases, University of Helsinki, Helsinki University Central Hospital, Helsinki, Finland
| | - Ismo Räisänen
- Department of Oral and Maxillofacial Diseases, University of Helsinki, Helsinki University Central Hospital, Helsinki, Finland
| | - Taina Tervahartiala
- Department of Oral and Maxillofacial Diseases, University of Helsinki, Helsinki University Central Hospital, Helsinki, Finland
| | - Shipra Gupta
- Unit of Periodontology, Oral Health Sciences Centre, Post Graduate Institute of Medical Education & Research, Chandigarh, India
| | - Timo Sorsa
- Department of Oral and Maxillofacial Diseases, University of Helsinki, Helsinki University Central Hospital, Helsinki, Finland
- Division of Periodontology, Department of Dental Medicine, Karolinska Institutet, Huddinge, Sweden
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9
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Luigi G, Debora B, Annunziata M, Francesco A, Borriello A, Fulvio DR, Alessandro F, Angelantonio P, Zeni L, Nunzio C. An optical fiber-based point-of-care test for periodontal MMP-8 detection: a proof of concept. J Dent 2023; 134:104553. [PMID: 37201775 DOI: 10.1016/j.jdent.2023.104553] [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: 11/29/2022] [Revised: 05/13/2023] [Accepted: 05/15/2023] [Indexed: 05/20/2023] Open
Abstract
OBJECTIVES The evaluation of salivary biomarkers has been proposed as a simple and non-invasive aid to the conventional periodontal diagnosis based on clinical-radiographic parameters. Matrix metalloproteinase-8 (MMP-8), especially in its active form, is considered one of the most reliable biomarkers of periodontitis, and point-of-care tests (POCTs) have been proposed for its clinical monitoring. In this proof-of-concept study, a novel highly sensitive POCT based on a plastic optical fiber (POF) biosensor exploiting surface plasmon resonance (SPR) to detect salivary MMP-8 is described. METHODS A SPR-POF biosensor was functionalized with a specific antibody to develop a surface-assembled monolayer (SAM) for the detection of total MMP-8. A white light source and a spectrometer connected to the biosensor were used to quantify MMP-8 level in both buffer and real matrix (saliva) by analysing the shift of the resonance wavelength determined by the specific antigen-antibody binding upon the SAM. RESULTS Dose-response curves by serial dilutions of human recombinant MMP-8 were realized, obtaining a limit of detection (LOD) of 40 pM (1.76 ng/ml) in buffer and 225 pM (9.9 ng/ml) in saliva and high selectivity compared to interferent analytes (MMP-2 and IL-6). CONCLUSIONS The proposed optical fiber-based POCT was able to detect and measure total MMP-8 with high selectivity and very low LOD in both buffer and saliva. CLINICAL SIGNIFICANCE The SPR-POF technology may be employed to create highly sensitive biosensors to monitor salivary MMP-8 levels. The possibility of specifically detecting its active, rather than total, form need to be further investigated. If confirmed and clinically validated, such a device may represent a promising tool to make an immediate, highly sensitive and reliable diagnosis of periodontitis, and to carry out a timely and targeted therapy, possibly helping to prevent the onset of local and systemic periodontitis-related complications.
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Affiliation(s)
- Guida Luigi
- Multidisciplinary Department of Medical-Surgical and Dental Specialties, University of Campania "Luigi Vanvitelli", Via L. De Crecchio, 6, 80138, Naples, Italy
| | - Bencivenga Debora
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Via L. De Crecchio 7, 80138, Naples, Italy
| | - Marco Annunziata
- Multidisciplinary Department of Medical-Surgical and Dental Specialties, University of Campania "Luigi Vanvitelli", Via L. De Crecchio, 6, 80138, Naples, Italy.
| | - Arcadio Francesco
- Department of Engineering, University of Campania Luigi Vanvitelli, Via Roma 29, 81031, Aversa, Italy
| | - Adriana Borriello
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Via L. De Crecchio 7, 80138, Naples, Italy.
| | - Della Ragione Fulvio
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Via L. De Crecchio 7, 80138, Naples, Italy
| | - Formisano Alessandro
- Department of Engineering, University of Campania Luigi Vanvitelli, Via Roma 29, 81031, Aversa, Italy
| | - Piccirillo Angelantonio
- Multidisciplinary Department of Medical-Surgical and Dental Specialties, University of Campania "Luigi Vanvitelli", Via L. De Crecchio, 6, 80138, Naples, Italy
| | - Luigi Zeni
- Department of Engineering, University of Campania Luigi Vanvitelli, Via Roma 29, 81031, Aversa, Italy.
| | - Cennamo Nunzio
- Department of Engineering, University of Campania Luigi Vanvitelli, Via Roma 29, 81031, Aversa, Italy
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10
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Yilmaz M, Sorsa T, Demir E, Gürsoy M, Suominen A, Tervahartiala T, Räisänen IT, Gürsoy UK. Accuracy of aMMP-8 point-of-care test in indicating periodontal treatment outcomes in stage III/IV periodontitis: A 24-week follow-up study. J Periodontal Res 2023; 58:325-335. [PMID: 36618000 DOI: 10.1111/jre.13093] [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: 10/28/2022] [Revised: 12/20/2022] [Accepted: 12/27/2022] [Indexed: 01/10/2023]
Abstract
OBJECTIVE To analyse the correspondence between aMMP-8 PoC test results and the clinical endpoints of non-surgical periodontal treatment in stage III/IV periodontitis. BACKGROUND The diagnostic success of the active-matrix metalloproteinase-8 (aMMP-8) point-of-care (PoC) test has been demonstrated in various studies, but the evidence of its accuracy following periodontal treatment is limited. MATERIALS AND METHODS Altogether 42 stage III/IV grade C periodontitis patients were included in this prospective diagnostic study. Clinical periodontal indices were recorded, aMMP-8 PoC test was applied and mouthrinse was collected before and at 6, 12 and 24 weeks after non-surgical periodontal treatment. Quantitative aMMP-8 levels were determined with immunofluorometric assay (IFMA) for the verification of the PoC test results. The accuracy of the aMMP-8 PoC test was assessed using previously established clinical endpoints as references. RESULTS Sensitivity and specificity of aMMP-8 PoC test to indicate clinical endpoints were ranged as follows: Sensitivity 71.4% at baseline, 39.3%-42.4% at week 6, 28.6%-32.4% at week 12 and 35.3%-42.9% at week 24; specificity 64.3%-80% at week 6, 40%-57.1% at week 12 and 56%-64.3% at week 24. CONCLUSIONS The accuracy of aMMP-8 PoC test in identifying clinical endpoints after non-surgical periodontal treatment is reduced in relation to baseline. Individual healing patterns of each diseased pocket eventually limit the accuracy of the dichotomous aMMP-8 oral rinse test during the post-treatment period.
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Affiliation(s)
- Mustafa Yilmaz
- Department of Periodontology, Institute of Dentistry, University of Turku, Turku, Finland.,Department of Periodontology, Faculty of Dentistry, Biruni University, Istanbul, Turkey
| | - Timo Sorsa
- Department of Oral and Maxillofacial Diseases, Head and Neck Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland.,Division of Periodontology, Department of Dental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Esra Demir
- Department of Periodontology, Faculty of Dentistry, Bezmialem Vakif University, Istanbul, Turkey
| | - Mervi Gürsoy
- Department of Periodontology, Institute of Dentistry, University of Turku, Turku, Finland
| | - Auli Suominen
- Department of Community Dentistry, Institute of Dentistry, University of Turku, Turku, Finland
| | - Taina Tervahartiala
- Department of Oral and Maxillofacial Diseases, Head and Neck Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Ismo T Räisänen
- Department of Oral and Maxillofacial Diseases, Head and Neck Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Ulvi K Gürsoy
- Department of Periodontology, Institute of Dentistry, University of Turku, Turku, Finland
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11
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Sales-Peres SHDC, Houghton J, Meira GDF, de Moura-Grec PG, Brienze SLA, Karim BA, Carpenter GH. Salivary Adiponectin and Albumin Levels on the Gingival Conditions of Patients Undergoing Bariatric Surgery: A Cohort Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:5261. [PMID: 37047877 PMCID: PMC10094151 DOI: 10.3390/ijerph20075261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 03/16/2023] [Accepted: 03/16/2023] [Indexed: 06/19/2023]
Abstract
This study analyzed the salivary proteomics, adiponectin and albumin, related to weight loss and periodontitis in patients undergoing bariatric surgery. This study included fourteen patients with morbid obesity (body mass index, BMI > 40 kg/m2) who underwent bariatric surgery Roux-en-Y gastric bypass (RYGB) in System Health Public in Brazil. Data on demographic and anthropometric measures were extracted from medical records preoperatively and 6 and 12 months post-surgery. The variables assessed were: probing pocket depth (PPD), clinical attachment loss (CAL), bleeding on probing (BOP), and stimulated whole-mouth saliva. In this study, saliva samples were analyzed by electrophoresis and immunoblotting. The ELISA kit was used to measure the MMP8 levels to determine potential markers for obesity. Adiponectin and albumin levels were also evaluated. Weight loss was associated with significant changes in patients' periodontal clinical data. Although 7 out of 10 periodontal patients showed an increase in salivary adiponectin levels after root planning treatment, when analyzed by Western blotting, the increase was not statistically significant (21.1 ± 4.8 to 26.3 ± 9.4 arbitrary units, p > 0.99). There was no correlation between albumin levels and salivary adiponectin pre-surgery, nor 6 months or 12 months after surgery. Weight loss was not improved by low-grade inflammation in bariatric patients, since albumin levels were similar between periods. Periodontitis is an inflammatory disease that is modulated by several factors, among which adiponectin plays an important role for the treatment of periodontal disease.
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Affiliation(s)
| | - Jack Houghton
- Department of Surgery, Faculty of Medicine of Sao Jose do Rio Preto, São José do Rio Preto 15090-000, Brazil
| | - Gabriela de Figueiredo Meira
- Department of Pediatric Dentistry, Orthodontics and Public Health, Bauru School of Dentistry, University of São Paulo, Bauru 17012-901, Brazil
| | - Patrícia Garcia de Moura-Grec
- Department of Pediatric Dentistry, Orthodontics and Public Health, Bauru School of Dentistry, University of São Paulo, Bauru 17012-901, Brazil
| | | | - Belkais Abuuasha Karim
- Center for Host-Microbiome Interactions, Faculty of Dental, Oral and Craniofacial Sciences, King’s College London, London WC2R 2LS, UK
| | - Guy Howard Carpenter
- Center for Host-Microbiome Interactions, Faculty of Dental, Oral and Craniofacial Sciences, King’s College London, London WC2R 2LS, UK
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12
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AlMoharib HS, AlRowis R, AlMubarak A, Waleed Almadhoon H, Ashri N. The Relationship between Matrix Metalloproteinases-8 and peri-implantitis: A Systematic Review and Meta-analysis. Saudi Dent J 2023; 35:283-293. [DOI: 10.1016/j.sdentj.2023.03.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 03/25/2023] [Accepted: 03/27/2023] [Indexed: 04/03/2023] Open
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13
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Keskin M, Rintamarttunen J, Gülçiçek E, Räisänen IT, Gupta S, Tervahartiala T, Pätilä T, Sorsa T. A Comparative Analysis of Treatment-Related Changes in the Diagnostic Biomarker Active Metalloproteinase-8 Levels in Patients with Periodontitis. Diagnostics (Basel) 2023; 13:diagnostics13050903. [PMID: 36900047 PMCID: PMC10001139 DOI: 10.3390/diagnostics13050903] [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: 01/04/2023] [Revised: 02/17/2023] [Accepted: 02/18/2023] [Indexed: 03/06/2023] Open
Abstract
BACKGROUND Previous studies have revealed the potential diagnostic utility of aMMP-8, an active form of MMP-8, in periodontal and peri-implant diseases. While non-invasive point-of-care (PoC) chairside aMMP-8 tests have shown promise in this regard, there is a dearth of literature on the evaluation of treatment response using these tests. The present study aimed to investigate treatment-related changes in aMMP-8 levels in individuals with Stage III/IV-Grade C periodontitis compared to a healthy control group, using a quantitative chairside PoC aMMP-8 test, and to determine its correlation with clinical parameters. METHODS The study included 27 adult patients (13 smoker, 14 non-smoker) with stage III/IV-grade C periodontitis and 25 healthy adult subjects. Clinical periodontal measurements, real-time PoC aMMP-8, IFMA aMMP-8, and Western immunoblot analyses were performed before and 1 month after anti-infective scaling and root planing periodontal treatment. Time 0 measurements were taken from the healthy control group to test the consistency of the diagnostic test. RESULTS Both PoC aMMP-8 and IFMA aMMP-8 tests showed a statistically significant decrease in aMMP-8 levels and improvement in periodontal clinical parameters following treatment (p < 0.05). The PoC aMMP-8 test had high diagnostic sensitivity (85.2%) and specificity (100.0%) for periodontitis and was not affected by smoking (p > 0.05). Treatment also reduced MMP-8 immunoreactivity and activation as demonstrated by Western immunoblot analysis. CONCLUSION The PoC aMMP-8 test shows promise as a useful tool for the real-time diagnosis and monitoring of periodontal therapy.
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Affiliation(s)
- Mutlu Keskin
- Oral and Dental Health Department, Altınbaş University, Istanbul 34140, Turkey
- Correspondence: ; Tel.: +90-5365246000
| | - Juulia Rintamarttunen
- Department of Oral and Maxillofacial Diseases, Head and Neck Center, University of Helsinki and Helsinki University Hospital, 00290 Helsinki, Finland
| | - Emre Gülçiçek
- Fulya Oral and Dental Health Clinic, Tekirdağ 59030, Turkey
| | - Ismo T. Räisänen
- Department of Oral and Maxillofacial Diseases, Head and Neck Center, University of Helsinki and Helsinki University Hospital, 00290 Helsinki, Finland
| | - Shipra Gupta
- Oral Health Sciences Centre, Post Graduate Institute of Medical Education & Research (PGIMER), Chandigarh 160012, India
| | - Taina Tervahartiala
- Department of Oral and Maxillofacial Diseases, Head and Neck Center, University of Helsinki and Helsinki University Hospital, 00290 Helsinki, Finland
| | - Tommi Pätilä
- Department of Pediatric Surgery, Children’s Hospital University, University of Helsinki and Helsinki University Hospital, 00290 Helsinki, Finland
| | - Timo Sorsa
- Department of Oral and Maxillofacial Diseases, Head and Neck Center, University of Helsinki and Helsinki University Hospital, 00290 Helsinki, Finland
- Department of Oral Diseases, Karolinska Institutet, 171 77 Stockholm, Sweden
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14
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Zhang Z, Ji C, Wang D, Wang M, Song D, Xu X, Zhang D. The burden of diabetes on the soft tissue seal surrounding the dental implants. Front Physiol 2023; 14:1136973. [PMID: 36875028 PMCID: PMC9978121 DOI: 10.3389/fphys.2023.1136973] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Accepted: 02/08/2023] [Indexed: 02/18/2023] Open
Abstract
Soft tissue seal around implant prostheses is considered the primary barrier against adverse external stimuli and is a critical factor in maintaining dental implants' stability. Soft tissue seal is formed mainly by the adhesion of epithelial tissue and fibrous connective tissue to the transmembrane portion of the implant. Type 2 diabetes mellitus (T2DM) is one of the risk factors for peri-implant inflammation, and peri-implant disease may be triggered by dysfunction of the soft tissue barrier around dental implants. This is increasingly considered a promising target for disease treatment and management. However, many studies have demonstrated that pathogenic bacterial infestation, gingival immune inflammation, overactive matrix metalloproteinases (MMPs), impaired wound healing processes and excessive oxidative stress may trigger poor peri-implant soft tissue sealing, which may be more severe in the T2DM state. This article reviews the structure of peri-implant soft tissue seal, peri-implant disease and treatment, and moderating mechanisms of impaired soft tissue seal around implants due to T2DM to inform the development of treatment strategies for dental implants in patients with dental defects.
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Affiliation(s)
- Zhanwei Zhang
- Department of Implantology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Shandong Provincial Clinical Research Center for Oral, Shandong University , Jinan, China
| | - Chonghao Ji
- Department of Implantology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Shandong Provincial Clinical Research Center for Oral, Shandong University , Jinan, China
| | | | - Maoshan Wang
- Department of Implantology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Shandong Provincial Clinical Research Center for Oral, Shandong University , Jinan, China
| | - Dawei Song
- School of Stomatology, Shandong First Medical University, Shandong Academy of Medical Sciences, Jinan, China
| | - Xin Xu
- Department of Implantology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Shandong Provincial Clinical Research Center for Oral, Shandong University , Jinan, China
| | - Dongjiao Zhang
- Department of Implantology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Shandong Provincial Clinical Research Center for Oral, Shandong University , Jinan, China
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15
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Yin L, Li X, Hou J. Macrophages in periodontitis: A dynamic shift between tissue destruction and repair. JAPANESE DENTAL SCIENCE REVIEW 2022; 58:336-347. [DOI: 10.1016/j.jdsr.2022.10.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 09/14/2022] [Accepted: 10/10/2022] [Indexed: 11/26/2022] Open
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16
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Gupta S, Mohindra R, Singla M, Khera S, Kumar A, Rathnayake N, Sorsa T, Pfützner A, Räisänen IT, Soni RK, Kanta P, Jain A, Gauba K, Goyal K, Singh MP, Ghosh A, Kajal K, Mahajan V, Suri V, Bhalla A. Validation of a noninvasive aMMP‐8 point‐of‐care diagnostic methodology in COVID‐19 patients with periodontal disease. Clin Exp Dent Res 2022; 8:988-1001. [PMID: 35818743 PMCID: PMC9350191 DOI: 10.1002/cre2.589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 04/30/2022] [Accepted: 05/01/2022] [Indexed: 11/09/2022] Open
Abstract
Objectives The aim of this study was to validate an active matrix metalloproteinase (MMP‐8) point‐of‐care diagnostic tool in COVID‐19 patients with periodontal disease. Subjects, Materials, and Methods Seventy‐two COVID‐19‐positive and 30 COVID‐19‐negative subjects were enrolled in the study. Demographic data were recorded, periodontal examination carried out, and chairside tests run for evaluating the expression of active MMP‐8 (aMMP‐8) in the site with maximum periodontal breakdown via gingival crevicular fluid sampling as well as via a mouth rinse‐based kit for general disease activity. In COVID‐19‐positive patients, the kits were run again once the patients turned COVID‐19 negative. Results The overall (n = 102) sensitivity/specificity of the mouthrinse‐based kits to detect periodontal disease was 79.41%/36.76% and that of site‐specific kits was 64.71%/55.88% while adjusting for age, gender, and smoking status increased the sensitivity and specificity (82.35%/76.47% and 73.53%/88.24, respectively). Receiver operating characteristic (ROC) analysis for the adjusted model revealed very good area under the ROC curve 0.746–0.869 (p < .001) and 0.740–0.872 (p < .001) (the aMMP‐8 mouth rinse and site‐specific kits, respectively). No statistically significant difference was observed in the distribution of results of aMMP‐8 mouth rinse test (p = .302) and aMMP‐8 site‐specific test (p = .189) once the subjects recovered from COVID‐19. Conclusions The findings of the present study support the aMMP‐8 point‐of‐care testing (PoCT) kits as screening tools for periodontitis in COVID‐19 patients. The overall screening accuracy can be further increased by utilizing adjunctively risk factors of periodontitis. The reported noninvasive, user‐friendly, and objective PoCT diagnostic methodology may provide a way of stratifying risk groups, deciding upon referrals, and in the institution of diligent oral hygiene regimens.
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Affiliation(s)
- Shipra Gupta
- Unit of Periodontics, Oral Health Sciences Centre Post Graduate Institute of Medical Education and Research (PGIMER) Chandigarh India
| | - Ritin Mohindra
- Department of Internal Medicine Post Graduate Institute of Medical Education & Research (PGIMER) Chandigarh India
| | - Mohita Singla
- Unit of Periodontics, Oral Health Sciences Centre Post Graduate Institute of Medical Education and Research (PGIMER) Chandigarh India
| | - Sagar Khera
- Department of Internal Medicine Post Graduate Institute of Medical Education & Research (PGIMER) Chandigarh India
| | - Amit Kumar
- Unit of Periodontics, Oral Health Sciences Centre Post Graduate Institute of Medical Education and Research (PGIMER) Chandigarh India
| | - Nilminie Rathnayake
- Department of Oral and Maxillofacial Diseases University of Helsinki and Helsinki University Hospital Helsinki Finland
| | - Timo Sorsa
- Department of Oral and Maxillofacial Diseases University of Helsinki and Helsinki University Hospital Helsinki Finland
- Department of Dental Medicine, Division of Periodontology Karolinska Institutet Huddinge Sweden
| | - Andreas Pfützner
- Clinical Research Department, Diabetes Center and Practice Pfützner Science and Health Institute Mainz Germany
| | - Ismo T. Räisänen
- Department of Oral and Maxillofacial Diseases University of Helsinki and Helsinki University Hospital Helsinki Finland
| | - Roop K. Soni
- Department of Internal Medicine Post Graduate Institute of Medical Education & Research (PGIMER) Chandigarh India
| | - Poonam Kanta
- Department of Virology Post Graduate Institute of Medical Education and Research (PGIMER) Chandigarh India
| | - Akanksha Jain
- Unit of Periodontics, Oral Health Sciences Centre Post Graduate Institute of Medical Education and Research (PGIMER) Chandigarh India
| | - Krishan Gauba
- Unit of Periodontics, Oral Health Sciences Centre Post Graduate Institute of Medical Education and Research (PGIMER) Chandigarh India
| | - Kapil Goyal
- Department of Virology Post Graduate Institute of Medical Education and Research (PGIMER) Chandigarh India
| | - Mini P. Singh
- Department of Virology Post Graduate Institute of Medical Education and Research (PGIMER) Chandigarh India
| | - Arnab Ghosh
- Department of Virology Post Graduate Institute of Medical Education and Research (PGIMER) Chandigarh India
| | - Kamal Kajal
- Department of Anaesthesia and Intensive Care Post Graduate Institute of Medical Education and Research (PGIMER) Chandigarh India
| | - Varun Mahajan
- Department of Anaesthesia and Intensive Care Post Graduate Institute of Medical Education and Research (PGIMER) Chandigarh India
| | - Vikas Suri
- Department of Internal Medicine Post Graduate Institute of Medical Education & Research (PGIMER) Chandigarh India
| | - Ashish Bhalla
- Department of Internal Medicine Post Graduate Institute of Medical Education & Research (PGIMER) Chandigarh India
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Bezerra B, Monajemzadeh S, Silva D, Pirih FQ. Modulating the Immune Response in Periodontitis. FRONTIERS IN DENTAL MEDICINE 2022. [DOI: 10.3389/fdmed.2022.879131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Periodontitis is a chronic inflammatory condition initiated by the accumulation of bacterial biofilm. It is highly prevalent and when left untreated can lead to tooth loss. The presence of bacterial biofilm is essential for the initiation of the inflammatory response but is not the sole initiator. Currently it is unknown which mechanisms drive the dysbiosis of the bacterial biofilm leading to the dysregulation of the inflammatory response. Other players in this equation include environmental, systemic, and genetic factors which can play a role in exacerbating the inflammatory response. Treatment of periodontal disease consists of removal of the bacterial biofilm with the goal of resolving the inflammatory response; however, this does not occur in every case. Understanding the way the inflammatory response does not return to a state of homeostasis has led investigators to consider both systemic and local pharmacological interventions. Nonetheless, a better understanding of the impact that genetics and environmental factors may have on the inflammatory response could be key to helping identify how inflammation can be modulated therefore stopping the destruction of the periodontium. In this article, we will explore the current evidence associating the microbial dysbiosis and the dysregulation of the immune response, potential mechanisms or pathways that may be targeted for the modulation of the inflammatory response, and discuss the advantages and drawbacks associated with local and systemic inflammatory modulation in the management of periodontal disease. This information will be valuable for those interested in understanding potential adjunct methods for managing periodontal diseases, but not limited to, dental professionals, clinical researchers and the public at large.
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18
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Umeizudike KA, Lähteenmäki H, Räisänen IT, Taylor JJ, Preshaw PM, Bissett SM, Tervahartiala T, O Nwhator S, Pärnänen P, Sorsa T. Ability of matrix metalloproteinase-8 biosensor, IFMA, and ELISA immunoassays to differentiate between periodontal health, gingivitis, and periodontitis. J Periodontal Res 2022; 57:558-567. [PMID: 35304757 PMCID: PMC9311725 DOI: 10.1111/jre.12985] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 01/18/2022] [Accepted: 03/06/2022] [Indexed: 12/29/2022]
Abstract
Objective The aim of this study was to determine the diagnostic utility of an MMP‐8 biosensor assay in differentiating periodontal health from gingivitis and periodontitis and compare it with an established time‐resolved immunofluorescence assay (IFMA) and enzyme‐linked immunosorbent assay (ELISA). Background Currently available antibody‐based assays display a wide variability in their ability to accurately measure matrix metalloproteinase‐8 (MMP‐8) levels in saliva. Methods Salivary MMP‐8 levels were analyzed in 189 systemically healthy participants using an antibody‐based biosensor prototype that operates using a surface acoustic wave technology and compared with IFMA and ELISA antibody assays. Participants were categorized into 3 groups: periodontal health (59), gingivitis (63), and periodontitis (67). A sub‐population of participants (n = 20) with periodontitis received periodontal treatment and were monitored for 6 months. Results All the assays demonstrated significantly higher salivary MMP‐8 concentrations in participants with periodontitis versus gingivitis, periodontitis versus health, and gingivitis versus health (all p < .05). The biosensor data demonstrated significant correlations with IFMA (r = .354, p < .001) and ELISA (r = .681, p < .001). Significant reductions in salivary MMP‐8 concentrations were detected by the biosensor (p = .030) and IFMA (p = .002) in participants with periodontitis 6 months after non‐surgical periodontal treatment. IFMA had the best sensitivity (89.2%) for detecting periodontitis and gingivitis versus health and 96.6% for detecting periodontitis versus health and gingivitis. The biosensor had an AUC value of 0.81 and diagnostic accuracy of 74.2% for differentiating periodontitis and gingivitis from health; an AUC value of 0.86 and diagnostic accuracy of 82.8% for periodontitis versus health and gingivitis. Conclusions The biosensor, IFMA, and ELISA assays differentiated between periodontal health, gingivitis, and periodontitis based on salivary MMP‐8 levels. Only the biosensor and, particularly, IFMA identified an effect of periodontal treatment in the participants with periodontitis. Our findings support the potential utility of salivary oral fluid aMMP‐8‐based point‐of‐care technology in the future of periodontal diagnostics.
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Affiliation(s)
- Kehinde Adesola Umeizudike
- Department of Preventive Dentistry, Faculty of Dental Sciences, College of Medicine, University of Lagos, Idi-Araba, Lagos, Nigeria.,Department of Oral and Maxillofacial Diseases, University of Helsinki, Helsinki University Hospital, Helsinki, Finland
| | - Hanna Lähteenmäki
- Department of Oral and Maxillofacial Diseases, University of Helsinki, Helsinki University Hospital, Helsinki, Finland
| | - Ismo T Räisänen
- Department of Oral and Maxillofacial Diseases, University of Helsinki, Helsinki University Hospital, Helsinki, Finland
| | - John J Taylor
- School of Dental Sciences and Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK
| | | | - Susan M Bissett
- School of Dental Sciences and Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK
| | - Taina Tervahartiala
- Department of Oral and Maxillofacial Diseases, University of Helsinki, Helsinki University Hospital, Helsinki, Finland
| | - Solomon O Nwhator
- Department of Preventive and Community Dentistry, Faculty of Dentistry, College of Health Sciences, Obafemi Awolowo University, Ile-Ife, Nigeria
| | - Pirjo Pärnänen
- Department of Oral and Maxillofacial Diseases, University of Helsinki, Helsinki University Hospital, Helsinki, Finland
| | - Timo Sorsa
- Department of Oral and Maxillofacial Diseases, University of Helsinki, Helsinki University Hospital, Helsinki, Finland.,Division of Periodontology, Department of Dental Medicine, Karolinska Institutet, Stockholm, Sweden
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Luchian I, Goriuc A, Sandu D, Covasa M. The Role of Matrix Metalloproteinases (MMP-8, MMP-9, MMP-13) in Periodontal and Peri-Implant Pathological Processes. Int J Mol Sci 2022; 23:ijms23031806. [PMID: 35163727 PMCID: PMC8837018 DOI: 10.3390/ijms23031806] [Citation(s) in RCA: 80] [Impact Index Per Article: 40.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 02/02/2022] [Accepted: 02/03/2022] [Indexed: 02/01/2023] Open
Abstract
Severe periodontitis, a destructive inflammatory disease of the supporting tissues of the teeth, ranks sixth in terms of global spread, affecting about 11% of the population. Metalloproteinases (MMPs) are extracellular matrix (ECM) macromolecules that are important in cellular development and morphogenesis, and they are capable of activating growth factors in their proximity, cell surface receptors, and adhesion molecules. MMPs are part of a major family of zinc-dependent endopeptidases, and their activity is modulated and regulated by certain inhibitors known as tissue metalloproteinase inhibitors (TIMPs). Because type I collagen is the major component of the periodontal extracellular matrix, special attention has been paid to the role of collagenases, especially MMP-8 and MMP-13 and gelatinases, MMP-2 and MMP-9, in periodontal diseases. In fact, MMP-8 (or collagenase 2) is currently one of the most promising biomarkers for periodontitis in oral fluids. Among them, salivary MMP-9 has been shown to be a more sensitive marker for periodontal inflammation during orthodontic treatment, which opens new perspectives in reducing periodontal hazards during such treatments. Both MMP-8 and MMP-9 are extremely valuable diagnostic tools in treating periodontitis, and future studies and healthcare policies should focus on implementing more accessible methods of chairside testing in order to reduce the prevalence of this disease.
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Affiliation(s)
- Ionut Luchian
- Department of Periodontology, Faculty of Dental Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 16 Universității Street, 700115 Iasi, Romania; (I.L.); (D.S.)
| | - Ancuta Goriuc
- Department of Biochemistry, Faculty of Dental Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 16 Universității Street, 700115 Iasi, Romania
- Correspondence: ; Tel.: +40-723-438-089
| | - Darius Sandu
- Department of Periodontology, Faculty of Dental Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 16 Universității Street, 700115 Iasi, Romania; (I.L.); (D.S.)
| | - Mihai Covasa
- College of Medicine and Biological Sciences, University “Stefan cel Mare” Suceava, 13 Universității Street, 720229 Suceava, Romania;
- Department of Basic Medical Sciences, College of Osteopathic Medicine, Western University of Health Sciences, 309E Second Street, Pomona, CA 91766, USA
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Lähteenmäki H, Tervahartiala T, Räisänen IT, Pärnänen P, Mauramo M, Gupta S, Sampson V, Rathnayake N, Heikkinen AM, Alassiri S, Gieselmann DR, Frankenberger R, Sorsa T. Active MMP-8 point-of-care (PoC)/chairside enzyme-test as an adjunctive tool for early and real-time diagnosis of peri-implantitis. Clin Exp Dent Res 2022; 8:485-496. [PMID: 35118828 PMCID: PMC9033547 DOI: 10.1002/cre2.537] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 10/12/2021] [Accepted: 12/14/2021] [Indexed: 01/03/2023] Open
Abstract
Objective The aim of this study was to investigate the utility of the active matrix metalloproteinase (aMMP‐8)‐point‐of‐care (PoC) test as a quantitative real‐time chair‐side diagnostic tool for peri‐implant diagnosis, as well as assess the potentially developing and ongoing risk relative to the traditional clinical methods. Background Current peri‐implant and periodontal disease diagnoses rely on clinical and radiological examinations. This case‐control study investigated the applicability of aMMP‐8‐PoC immunotest for quantitative real‐time diagnosis and monitoring of dental implants in health and disease. Methods Sixty‐eight patients visiting a specialist clinic for maintenance following dental implant placement underwent assessment of their peri‐implant health. aMMP‐8‐PoC peri‐implant sulcular fluid (PISF) lateral‐flow immunotests were performed using ImplantSafe® technology quantitated by ORALyzer®. In addition, the PISF samples were analyzed for total MMP‐8, calprotectin, and interleukin (IL)‐6 by enzyme‐linked immunosorbent assays (ELISA), aMMP‐8 by western immunoblot, and MMP‐2 and MMP‐9 by gelatin zymography. Results The aMMP‐8‐PoC test promptly recorded and reflected peri‐implant disease, differentiating it clearly from health. X‐ray findings (bone loss > 2 mm), peri‐implant pocket depth ≥ 3 mm, and bleeding on probing were significantly more prevalent among implants positive for the aMMP‐8‐PoC test. aMMP‐8/ORALyzer analysis was more precise in recording disease than total MMP‐8, calprotectin, IL‐6, MMP‐2, and MMP‐9. Conclusions The aMMP‐8‐PoC test can be conveniently implemented to alert for and detect active collagenolysis affecting peri‐implant tissues, both in the early and advanced stages of the disease. Active and fragmented MMP‐8 exhibits a strong and significant association with peri‐implantitis as compared to total MMP‐8 and other biomarkers and can be utilized as the POC/chairside biomarker of choice in the new classification of peri‐implantitis.
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Affiliation(s)
- Hanna Lähteenmäki
- Department of Oral and Maxillofacial Diseases, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Taina Tervahartiala
- Department of Oral and Maxillofacial Diseases, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Ismo T Räisänen
- Department of Oral and Maxillofacial Diseases, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Pirjo Pärnänen
- Department of Oral and Maxillofacial Diseases, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Matti Mauramo
- Department of Oral and Maxillofacial Diseases, University of Helsinki and Helsinki University Hospital, Helsinki, Finland.,Department of Pathology, Haartman Institute and HUSLab, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Shipra Gupta
- Unit of Periodontics, Oral Health Sciences Centre, Post Graduate Institute of Medical Education & Research (PGIMER), Chandigarh, India
| | - Victoria Sampson
- Department of Oral and Maxillofacial Diseases, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Nilminie Rathnayake
- Department of Oral and Maxillofacial Diseases, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Anna-Maria Heikkinen
- Department of Oral and Maxillofacial Diseases, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Saeed Alassiri
- Department of Oral and Maxillofacial Diseases, University of Helsinki and Helsinki University Hospital, Helsinki, Finland.,Department of Periodontics and Community Dental Sciences, King Khalid University, Abha, Saudi Arabia
| | | | - Roland Frankenberger
- Department for Operative Dentistry, Endodontics, and Pediatric Dentistry, Philipps University Marburg and University Hospital Giessen and Marburg, Marburg, Germany
| | - Timo Sorsa
- Department of Oral and Maxillofacial Diseases, University of Helsinki and Helsinki University Hospital, Helsinki, Finland.,Division of Periodontology, Department of Dental Medicine, Karolinska Institutet, Huddinge, Sweden
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21
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Guarnieri R, Zanza A, D’Angelo M, Di Nardo D, Del Giudice A, Mazzoni A, Reda R, Testarelli L. Correlation between Peri-Implant Marginal Bone Loss Progression and Peri-Implant Sulcular Fluid Levels of Metalloproteinase-8. J Pers Med 2022; 12:jpm12010058. [PMID: 35055373 PMCID: PMC8781957 DOI: 10.3390/jpm12010058] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 12/31/2021] [Accepted: 01/04/2022] [Indexed: 02/04/2023] Open
Abstract
Objectives: The aim of this retrospective study was to analyze peri-implant marginal bone loss levels/rates and peri-implant sulcular fluid levels/rates of metalloproteinase-8 in three timeframes (6 months post-surgery—restoration delivery (T0)—and 6 (T6) and 24 (T24)-months post-loading) and to evaluate if there is a correlation between peri-implant sulcular fluid levels of metalloproteinase-8 and peri-implant marginal bone loss progression. Materials and Methods: Two cohorts of patients undergoing implant surgery between January 2017 and January 2019 were selected in this retrospective study. A total of 39 patients received 39 implants with a laser-microtextured collar surface, and 41 subjects received 41 implants with a machined/smooth surface. For each patient, periapical radiographs and a software package were used to measure marginal bone loss rates. Implant fluid samples were analyzed by an enzyme-linked immunosorbent assay (ELISA) test. The modified plaque index, probing depth, and bleeding on probing were also recorded. Results: High marginal bone rates at T24 were strongly associated with elevated rates between T0 and T6. The levels of metalloproteinase-8 were significantly more elevated around implants with marginal bone loss, in relation to implants without marginal bone loss. Marginal bone loss (MBL) rates at 24 months were associated with initial bone loss rates and initial levels of metalloproteinase-8. Conclusions: Peri-implant marginal bone loss progression is statistically correlated to peri-implant sulcular fluid levels of metalloproteinase-8. Moreover, the initial high levels of marginal bone loss and metalloproteinase-8 can be considered as indicators of the subsequent progression of peri-implant MBL: implants with increased marginal bone loss rates and metalloproteinase-8 levels at 6 months after loading are likely to achieve additional marginal bone loss values.
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Affiliation(s)
- Renzo Guarnieri
- Department of Oral and Maxillofacial Sciences, Sapienza University of Rome, 00161 Rome, Italy; (R.G.); (A.Z.); (M.D.); (A.D.G.); (A.M.); (R.R.); (L.T.)
- Private Periodontal Implant Practice, 31100 Treviso, Italy
| | - Alessio Zanza
- Department of Oral and Maxillofacial Sciences, Sapienza University of Rome, 00161 Rome, Italy; (R.G.); (A.Z.); (M.D.); (A.D.G.); (A.M.); (R.R.); (L.T.)
| | - Maurilio D’Angelo
- Department of Oral and Maxillofacial Sciences, Sapienza University of Rome, 00161 Rome, Italy; (R.G.); (A.Z.); (M.D.); (A.D.G.); (A.M.); (R.R.); (L.T.)
| | - Dario Di Nardo
- Department of Oral and Maxillofacial Sciences, Sapienza University of Rome, 00161 Rome, Italy; (R.G.); (A.Z.); (M.D.); (A.D.G.); (A.M.); (R.R.); (L.T.)
- Correspondence:
| | - Andrea Del Giudice
- Department of Oral and Maxillofacial Sciences, Sapienza University of Rome, 00161 Rome, Italy; (R.G.); (A.Z.); (M.D.); (A.D.G.); (A.M.); (R.R.); (L.T.)
| | - Alessandro Mazzoni
- Department of Oral and Maxillofacial Sciences, Sapienza University of Rome, 00161 Rome, Italy; (R.G.); (A.Z.); (M.D.); (A.D.G.); (A.M.); (R.R.); (L.T.)
| | - Rodolfo Reda
- Department of Oral and Maxillofacial Sciences, Sapienza University of Rome, 00161 Rome, Italy; (R.G.); (A.Z.); (M.D.); (A.D.G.); (A.M.); (R.R.); (L.T.)
| | - Luca Testarelli
- Department of Oral and Maxillofacial Sciences, Sapienza University of Rome, 00161 Rome, Italy; (R.G.); (A.Z.); (M.D.); (A.D.G.); (A.M.); (R.R.); (L.T.)
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Understanding the Role of Metalloproteinases and Their Inhibitors in Periodontology. Clin Rev Bone Miner Metab 2022. [DOI: 10.1007/s12018-021-09281-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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23
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Chen B, Kang Z, Zheng E, Liu Y, Gauld JW, Wang Q. Hydrolysis Mechanism of the Linkers by Matrix Metalloproteinase-9 Using QM/MM Calculations. J Chem Inf Model 2021; 61:5203-5211. [PMID: 34649435 DOI: 10.1021/acs.jcim.1c00825] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Activatable cell-penetrating peptides (ACPPs) are known to be able to decrease the cytotoxicity of cell-penetrating peptide (CPP)-based drug delivery systems. Furthermore, they can improve the targeting of CPPs when specifically recognized and hydrolyzed by characteristic proteases. A comprehensive and profound understanding of the recognition and hydrolysis process will provide a better design of the ACPP-based drug delivery system. Previous studies have clearly described how ACPPs are recognized and bound by MMPs. However, the hydrolysis mechanism of ACPPs is still unsolved. This work focuses on a proteinase-sensitive cleavable linker of ACPPs (PLGLAG), the key structure for recognition and hydrolysis, trying to determine the mechanism by which MMP-9 hydrolyzes its substrate PLGLAG. The quantum mechanics/molecular mechanics (QM/MM) calculations herein show that MMP-9 proteolysis is a water-mediated four-step reaction. More specifically, it consists of (i) nucleophilic attack, (ii) hydrogen-bond rearrangement, (iii) proton transfer, and finally (iv) amide bond rupture. Considering the reversibility of multistep reaction, the second step (i.e., hydrogen-bond rearrangement) has the highest barrier and is the rate-limiting step in the hydrolysis of PLGLAG. The possible design and improvement of the key P1 and P1' sites are also explored through mutations. The present results indicate that, while the mutations affect the reaction energy barriers and the rate-limiting steps, all mutants considered could be hydrolyzed by MMP-9. To provide further insights, the hydrolysis mechanism of MMP-2, which has a similar hydrolysis process to that of MMP-9 but with different reaction barriers, is also studied and compared. As a result, this work provides detailed insights into the hydrolysis mechanism of ACPPs by MMP-9 and, thus, also possible insights for the development of new strategies for ACPP-based delivery systems.
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Affiliation(s)
- Binbin Chen
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Zhengzhong Kang
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - En Zheng
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Yingchun Liu
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - James W Gauld
- Department of Chemistry and Biochemistry, University of Windsor, Windsor N9B 3P4, Canada
| | - Qi Wang
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
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Preda SA, Predescu AM, Stoica LE, Albulescu DM, Ionovici N, Bugălă NM, Popescu M, Ţuculină MJ. Histopathological and immunohistochemical changes of the marginal periodontium in patients with Turner syndrome. ROMANIAN JOURNAL OF MORPHOLOGY AND EMBRYOLOGY 2021; 62:239-247. [PMID: 34609427 PMCID: PMC8597370 DOI: 10.47162/rjme.62.1.24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Turner syndrome (TS) is characterized by partial or complete loss of a sexual chromosome, resulting in an incomplete development of the body, gonadic failure, cardiac and renal abnormalities, oro-dental changes, etc. In our study, we proposed to perform a histological and immunohistochemical (IHC) study of the periodontium changes in patients with TS. The biological material under study was represented by fragments of gingival mucosa harvested from 18 patients with TS who presented advanced periodontal lesions and required dental extractions. The fragments of gingival mucosa were processed by the classical histological technique of paraffin inclusion, subsequently the obtained sections being stained by the Hematoxylin–Eosin (HE) and examined under the optical microscope. For the IHC study, there were performed serial sections incubated with anti-cluster of differentiation (CD) 3, anti-CD20 and anti-CD68 antibodies for highlighting immune cells, as well as with anti-matrix metalloproteinase (MMP) 2 and anti-MMP8 antibodies for highlighting MMPs (MMP2 and MMP8) involved in the periodontal tissue lesions. In the present study, during the histological examination, there were observed morphological changes, both in the epithelium and in the gingival mucosa chorion. Epithelial changes consisted in the onset of acanthosis processes, in the thickening of the epithelium due to the increase of the spinous layer, as well as in the parakeratosis phenomenon. In the chorion, there was observed the presence of inflammatory infiltrates in various stages, presence of fibrosis (extended in some cases) and the presence of an important vascularization in some cases, with a high number of immunocompetent cells involved in the inborn immune response, but also in the adaptive one, as well as a more or less intense immunoexpression of MMP2 and MMP8. Our study suggests that TS may contribute to the development of some inflammatory processes in the marginal periodontium.
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Affiliation(s)
- Smaranda Adelina Preda
- Department of Histology and Cytology, Faculty of Dental Medicine, Faculty of Medicine, University of Medicine and Pharmacy of Craiova, Romania; ,
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Evaluation of Gene Polymorphism and Gingival Crevicular Fluid Levels of Matrix Metalloproteinase-3 in a Group of Turkish Periodontitis Patients. Pathogens 2021; 10:pathogens10101260. [PMID: 34684209 PMCID: PMC8539123 DOI: 10.3390/pathogens10101260] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 09/10/2021] [Accepted: 09/26/2021] [Indexed: 11/17/2022] Open
Abstract
INTRODUCTION Periodontitis is characterized by the destruction of tooth-supporting tissues. Matrix metalloproteinases (MMPs) play a significant part in the degradation of collagen structure. The gingival crevicular fluid (GCF) levels of MMPs increase with the progression of periodontal inflammation. Polymorphisms can be responsible for high expression of MMPs and can exacerbate the breakdown of collagen structure. This study aims to investigate the effect of MMP-3 -1171 5A/6A polymorphism and the GCF levels of MMP-3 in a group of Turkish periodontitis patients. MATERIALS AND METHODS Non-smoking, stage II grade A periodontitis (S II-Gr A) (n = 68) and stage II grade B periodontitis (S II-Gr C) (n = 64) patients were recruited. Healthy individuals (H) (n = 72) without signs of gingivitis or periodontitis served as the control. Venous blood was collected from participants to obtain DNA, and the polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) method was used to detect polymorphism. GCF samples were taken to assess MMP-3 levels using an enzyme-linked immunosorbent assay (ELISA). RESULTS The MMP-3 -1179 5A/6A distribution showed no significant difference between the groups (p > 0.05). However, the MMP-3 GCF levels of the S II-Gr C group were higher than those of both the S II-Gr A and H groups (p < 0.05), and elevated MMP-3 levels were detected in S II-Gr A compared to H (p < 0.05). CONCLUSION The MMP-3 GCF levels showed an association with periodontal tissue destruction, although single nucleotide polymorphism was not associated with the S II-Gr C and S II-Gr A groups in the Turkish population.
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Parveen S. Impact of calorie restriction and intermittent fasting on periodontal health. Periodontol 2000 2021; 87:315-324. [PMID: 34463980 DOI: 10.1111/prd.12400] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The scientific evidence indicates that calorie restriction and intermittent fasting are among the appropriate strategies targeting factual causative factors of various inflammatory and lifestyle-related disorders. Periodontitis is a common oral inflammatory disease leading to bone loss that is associated with various systemic problems. Previous studies suggest that calorie restriction may dampen inflammation and concomitant tissue damage under inflammatory conditions, such as periodontal diseases in nonhuman primates. However, insufficient research has been carried out to assess the effects of a calorie-restricted diet on the initiation and progression of periodontal disease in humans. This review of the literature aims to describe the general concepts of calorie restriction, its clinical implications, and related therapeutic potential in controlling periodontal inflammation. The review shows that fasting regimen groups have shown lesser bone loss because of an increase in osteoprogenitor cells than non-fasting groups. Calorie restriction dampens the inflammatory response and reduces circulating inflammatory mediators like tumor necrosis factor-alpha, interleukin-6, matrix metalloproteinase-8, matrix metalloproteinase-9, and interleukin-1-beta in gingival crevicular fluid. However, the incorporation of this form of dietary intervention continues to be challenging in our current society, in which obesity is a major public concern. Calorie restriction and intermittent fasting can play a key role in the cost-effective resolution of periodontal inflammation as a primary prevention strategy for the management of chronic inflammatory diseases, including periodontal diseases.
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Affiliation(s)
- Sameena Parveen
- Department of Maxillofacial Surgery and Diagnostic Sciences, College of Dentistry, Jazan University, Jazan, Saudi Arabia
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27
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Hernández M, Baeza M, Räisänen IT, Contreras J, Tervahartiala T, Chaparro A, Sorsa T, Hernández-Ríos P. Active MMP-8 Quantitative Test as an Adjunctive Tool for Early Diagnosis of Periodontitis. Diagnostics (Basel) 2021; 11:diagnostics11081503. [PMID: 34441437 PMCID: PMC8394100 DOI: 10.3390/diagnostics11081503] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 08/14/2021] [Accepted: 08/17/2021] [Indexed: 12/16/2022] Open
Abstract
Periodontitis is a host-mediated bacterial disease that affects the tooth attachment apparatus. Metalloproteinase-8 (MMP-8), a validated biomarker, could aid in clinical diagnosis. This study aimed to evaluate the diagnostic performance of active (a) MMP-8 immunotest versus total (t) MMP-8 ELISA for quantitative real-time diagnosis and assessment of periodontitis severity at the site level. Gingival crevicular fluid (GCF) was sampled from 30 healthy, 42 mild, and 59 severe periodontitis sites from thirty-one volunteers. MMP-8 concentrations were determined by time-resolved immunofluorometric assay (IFMA) and enzyme-linked immunosorbent assay (ELISA). Statistical analysis was performed using the STATA package. Both active and total MMP-8-based methods discriminated among sites according to periodontal diagnosis and severity, with a positive correlation between the two tests (p < 0.001). (a) MMP-8 models showed the best performance in receiver operating characteristic (ROC) curves to discriminate between healthy and periodontitis sites (area under the curve [AUC] = 0.89), while (t) MMP-8 demonstrated a high diagnostic precision in the detection of mild from severe periodontitis sites (AUC ≥ 0.80). The use of (a) MMP-8 and (t) MMP-8 could represent a useful adjunctive tool for periodontitis diagnosis and severity. These results support the applicability of new point-of-care methods in the monitoring of high-risk periodontal patients.
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Affiliation(s)
- Marcela Hernández
- Laboratory of Periodontal Biology, Department of Oral Pathology and Medicine, Faculty of Dentistry, University of Chile, Santiago 8380544, Chile;
| | - Mauricio Baeza
- Department of Conservative Dentistry, Faculty of Dentistry, University of Chile, Santiago 8380544, Chile; (M.B.); (J.C.)
- School of Public Health, Faculty of Medicine, University of Chile, Santiago 7510040, Chile
| | - Ismo T. Räisänen
- Department of Oral and Maxillofacial Diseases, University of Helsinki and Helsinki University Hospital, 00290 Helsinki, Finland; (I.T.R.); (T.T.); (T.S.)
| | - Johanna Contreras
- Department of Conservative Dentistry, Faculty of Dentistry, University of Chile, Santiago 8380544, Chile; (M.B.); (J.C.)
| | - Taina Tervahartiala
- Department of Oral and Maxillofacial Diseases, University of Helsinki and Helsinki University Hospital, 00290 Helsinki, Finland; (I.T.R.); (T.T.); (T.S.)
| | - Alejandra Chaparro
- Department of Periodontology, Centro de Investigación e Innovación Biomédica (CIIB), Faculty of Dentistry, Universidad de Los Andes, Santiago 7620001, Chile;
| | - Timo Sorsa
- Department of Oral and Maxillofacial Diseases, University of Helsinki and Helsinki University Hospital, 00290 Helsinki, Finland; (I.T.R.); (T.T.); (T.S.)
- Division of Periodontology, Department of Dental Medicine, Karolinska Institutet, 14152 Huddinge, Sweden
| | - Patricia Hernández-Ríos
- Department of Conservative Dentistry, Faculty of Dentistry, University of Chile, Santiago 8380544, Chile; (M.B.); (J.C.)
- Correspondence: ; Tel.: +56-2-2978-1839
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Origin of MMP-8 and Lactoferrin levels from gingival crevicular fluid, salivary glands and whole saliva. BMC Oral Health 2021; 21:385. [PMID: 34353321 PMCID: PMC8340507 DOI: 10.1186/s12903-021-01743-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Accepted: 07/12/2021] [Indexed: 12/14/2022] Open
Abstract
Background Pathologically elevated levels of matrix metalloproteinase-8 (MMP-8) and Lactoferrin in oral fluids have been associated with the presence of gingivitis/periodontitis. This study aimed to assess the origin of MMP-8 and Lactoferrin in periodontitis patients and to identify the degree to which conventional clinical parameters correlate with their presence. Methods A total of ten periodontitis and ten healthy patients were included in this study. Whole saliva (stimulated and unstimulated), parotid/sublingual glandular fluid and gingival crevicular fluid from pockets and sulci were tested for MMP-8 and Lactoferrin and protein concentrations were quantified using an ELISA assay. Clinical parameters were checked for potential associations with MMP-8 and Lactoferrin levels. Results Periodontal patients presented higher concentrations of MMP-8 and Lactoferrin in pockets than other sources (P = 0.03). Lactoferrin measurement was higher in the parotid compared to sublingual glandular fluid in periodontitis patients (P = 0.03). Increased probing pocket depth was positively correlated with high MMP-8 and Lactoferrin levels. Conclusions Periodontal pockets appear to be the major source of active matrix metalloproteinase and Lactoferrin, which also may also enter the oral cavity through the salivary glands. Since clinically healthy sites in periodontitis patients also had elevated biomarker levels, gingival crevicular fluid biomarker testing may be more predictive of future tissue breakdown than conventional clinical parameters.
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Nędzi-Góra M, Górska R, Górski B. The utility of gingival crevicular fluid matrix metalloproteinase-8 provides site-specific diagnostic value for periodontal grading. Cent Eur J Immunol 2021; 46:236-243. [PMID: 34764793 PMCID: PMC8568025 DOI: 10.5114/ceji.2021.107031] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Accepted: 08/11/2020] [Indexed: 12/21/2022] Open
Abstract
INTRODUCTION Matrix metalloproteinase-8 (MMP-8), and its active form aMMP-8, was identified as a potential biomarker of periodontal tissue destruction. It is present at different concentrations in various oral fluids. MATERIAL AND METHODS Gingival crevicular fluid (GCF) samples were collected from periodontal pockets ≥ 6 mm of 24 untreated patients using paper points and clinical parameters were recorded. 12 subjects were diagnosed with periodontitis stage III grade B, and 12 others with periodontitis stage III grade C. After thorough preparations, samples were collected following manufacturers' instructions and analyzed using a commercially available test system for aMMP-8 evaluation (aMMP-8 Test) and Periotron 8000 together with Quantikine kits for assessment of total MMP-8 concentration (controls). Microbiological evaluation of the same pockets was carried out using real-time polymerase chain reaction. RESULTS Concentrations of both total MMP-8 and aMMP-8 in GCF were higher in the case of periodontitis grade C, compared to periodontitis grade B, but reached statistical significance only in the case of total MMP-8 (77.17 ng/ml and 18.73 ng/ml respectively; p = 0.0104). Positive correlations were found between total MMP-8 and aMMP-8 levels and the prevalence of Fusobacterium nucleatum, mean probing pocket depth of all pockets, % of pockets ≥ 6 mm, as well as probing pocket depth of pocket from which GCF samples were collected. CONCLUSIONS GCF concentration levels of both total MMP-8 and aMMP-8 correlated with severity of periodontal destruction, whereas total MMP-8 appeared to be a preferable method for differentiation of periodontal grading. However, the aMMP-8 Test was easier and more convenient to handle.
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Affiliation(s)
| | - Renata Górska
- Department of Periodontology and Oral Mucosa Diseases, Medical University of Warsaw, Warsaw, Poland
| | - Bartłomiej Górski
- Department of Periodontology and Oral Mucosa Diseases, Medical University of Warsaw, Warsaw, Poland
- The Chair and Department of Periodontology, Medical University of Lublin, Lublin, Poland
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Taalab MR, Mahmoud SA, Moslemany RME, Abdelaziz DM. Intrapocket application of tea tree oil gel in the treatment of stage 2 periodontitis. BMC Oral Health 2021; 21:239. [PMID: 33952216 PMCID: PMC8101226 DOI: 10.1186/s12903-021-01588-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2021] [Accepted: 04/20/2021] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND The gold standard in treatment of periodontitis is mechanical removing of dental biofilm but using local delivery drugs as adjunctive to SRP is widely used to modulate inflammatory host and eradicate microbes. Tea tree oil (TTO) has a broad-spectrum antimicrobial, anti-inflammatory, antifungal, antiviral, antioxidant effect. This study aimed to assess clinically and biochemically the effect of intrapocket application of TTO (Melaleuca alternifolia) gel adjunctive to scaling and root planing (SRP) in the treatment of stage 2 (moderate) periodontitis and to correlate the biochemical levels with clinical response. METHODS A randomized, controlled clinical trial was conducted on thirty patients with stage 2 periodontitis. Patients were equally divided into two groups: Control Group treated with (SRP) alone and Test Group treated with SRP and locally delivered 5% TTO gel. Clinical assessment included pocket probing depth (PPD), clinical attachment loss (CAL), gingival index (GI) and bleeding on probing (BOP) measured at baseline and after 3 and 6 months. The level of matrix metalloproteinase-8 (MMP-8), in the gingival crevicular fluid (GCF) was also assessed at baseline and after1, 3 and 6 months by Enzyme-linked immunosorbent assay (ELISA) kit. Chi-square, Student t- tests, Mann-Whitney U test and Spearman correlation were the statistical tests used in the study. RESULTS An improvement of all clinical and biochemical parameters was observed (at p < 0.001) in both groups. A significant difference between the two groups was found in both clinical and biochemical parameters. CONCLUSION The local delivery of TTO gel adjunctive to SRP proved to be effective in the treatment of stage II periodontitis. Trial registration The study was retrospectively registered at clinicaltrials.gov NCT04769271, on 24/2/2021.
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Affiliation(s)
- Maha R. Taalab
- Department of Oral Medicine, Periodontology, Oral Diagnosis and Oral Radiology, Faculty of Dentistry, Alexandria University, Champolion St. Azarita, Alexandria, 21521 Egypt
| | - Sabah Abdelhady Mahmoud
- Department of Medical Biochemistry and Molecular Biology Department, Faculty of Dentistry, Alexandria University, Alexandria, Egypt
| | - Riham M. El Moslemany
- Department of Pharmaceutics Department, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt
| | - Dania M. Abdelaziz
- Department of Oral Medicine, Periodontology, Oral Diagnosis and Oral Radiology, Faculty of Dentistry, Alexandria University, Champolion St. Azarita, Alexandria, 21521 Egypt
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Regulation of matrix metalloproteinases-8, -9 and endogenous tissue inhibitor-1 in oral biofluids during pregnancy and postpartum. Arch Oral Biol 2021; 124:105065. [PMID: 33556788 DOI: 10.1016/j.archoralbio.2021.105065] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2019] [Revised: 01/12/2021] [Accepted: 01/17/2021] [Indexed: 02/07/2023]
Abstract
OBJECTIVE During pregnancy, mothers undergoe considerable physiological changes affecting the whole body including periodontal tissues. Susceptibility to gingival inflammation during pregnancy could be mediated by modulation of matrix metalloproteinases (MMPs) and their tissue inhibitors (TIMPs). Therefore, the aim of this study was to investigate salivary and gingival crevicular fluid (GCF) levels of MMPs and TIMPs during the second and third trimester of pregnancy and postpartum. DESIGN Saliva and GCF samples were collected from 96 pregnant women (PW) before and after giving birth. The sixty matched non-pregnant women (N-PW) were recruited as a control group and full-mouth periodontal examination was performed. The levels of MMP-8, MMP-9 and TIMP-1 were determined by immunofluorometric and enzyme-linked immunosorbent assays. RESULTS The PW group exhibited significantly higher levels of MMP-8 and MMP-9 in their saliva than the N-PW group while corresponding salivary TIMP-1 levels were significantly lower in NPW compared to the postpartum stage. This resulted in significantly higher MMP-8/TIMP-1 and MMP-9/TIMP-1ratio in the saliva from PW before and after birth than in that from N-PW. MMP-8, MMP-9 and TIMP-1 levels were higher in GCF from PW and postpartum than in that from N-PW. CONCLUSIONS MMP-8 and MMP-9 levels in saliva and GCF reflect inflammatory burden during pregnancy. They could be used for monitoring the inflammatory state of gingival tissues during pregnancy.
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Öztürk VÖ, Emingil G, Umeizudike K, Tervahartiala T, Gieselmann DR, Maier K, Köse T, Sorsa T, Alassiri S. Evaluation of active matrix metalloproteinase-8 (aMMP-8) chair-side test as a diagnostic biomarker in the staging of periodontal diseases. Arch Oral Biol 2021; 124:104955. [PMID: 33556789 DOI: 10.1016/j.archoralbio.2020.104955] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 10/05/2020] [Accepted: 10/11/2020] [Indexed: 12/20/2022]
Abstract
OBJECTIVE There is a need for a reliable complementary diagnostic tool that ideally helps to screen, differentiate sites, activities of and predict future periodontal tissue destruction. The purpose of this cross-sectional study was to investigate the screening and prevention potential of the chair-side/point-of-care (PoC) diagnostic test of salivary active matrix metalloproteinase-8 (aMMP-8) levels at different stages of periodontal disease and periodontal health. MATERIAL & METHODS 80 individuals were included in this study; 18 with periodontitis stage 3 (P-Stage III), 19 with periodontitis stage-4 (P-Stage IV), 21 with gingivitis, and 22 with clinically healthy periodontium (H). The aMMP-8 levels in GCF and saliva were analyzed by chairside point-of-care aMMP-8 lateral flow immunotest and also by a time-resolved immunofluorescence assay (IFMA). RESULTS The sensitivity of the chair-side/PoC test was 83.9 % while specificity was 79.2 %. The aMMP-8 IFMA levels in GCF were significantly higher in P-Stage IV group than P-Stage III, gingivitis and healthy groups (p = 0.01, p = 0.001, p = 0.00, respectively). Moreover, P-Stage III and gingivitis groups had significantly higher aMMP-8 IFMA levels than the healthy group (p < 0.05). CONCLUSION The aMMP-8 chair-side test showed promising results in its ability to recognize and predict the inflammatory status even at the very initial/early stages. aMMP-8 chair-side test could be a valuable adjunctive diagnostic and preventive tool to conventional clinical methods in detecting periodontal disease.
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Affiliation(s)
- V Özgen Öztürk
- Department of Periodontology, School of Dentistry, Aydın Adnan Menderes University, Aydın, Turkey.
| | - Gülnur Emingil
- Department of Periodontology, School of Dentistry, Ege University, İzmir, Turkey
| | - Kehinde Umeizudike
- Department of Preventive Dentistry, Faculty of Dental Sciences, College of Medicine, University of Lagos, Idi-araba, Lagos, Nigeria
| | - Taina Tervahartiala
- Department of Oral and Maxillofacial Diseases, University of Helsinki, Helsinki University Hospital, Institute of Dentistry, Helsinki, Finland
| | - Dirk-Rolf Gieselmann
- Institute of Molecular Dentistry and Dentognostics GmbH, Solingen and Jena, Germany
| | - Kurt Maier
- Institute of Molecular Dentistry and Dentognostics GmbH, Solingen and Jena, Germany
| | - Timur Köse
- Department of Biostatistics and Medical Informatics, School of Medicine, Ege University, Izmir, Turkey
| | - Timo Sorsa
- Department of Oral and Maxillofacial Diseases, University of Helsinki, Helsinki University Hospital, Institute of Dentistry, Helsinki, Finland; Division of Oral Diseases, Department of Dental Medicine, Karolinksa Institute, Huddinge, Sweden
| | - Saeed Alassiri
- Department of Oral and Maxillofacial Diseases, University of Helsinki, Helsinki University Hospital, Institute of Dentistry, Helsinki, Finland
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Räisänen IT, Sorsa T, Tervahartiala T, Raivisto T, Heikkinen AM. Low association between bleeding on probing propensity and the salivary aMMP-8 levels in adolescents with gingivitis and stage I periodontitis. J Periodontal Res 2020; 56:289-297. [PMID: 33305834 DOI: 10.1111/jre.12817] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 11/09/2020] [Accepted: 11/12/2020] [Indexed: 12/22/2022]
Abstract
BACKGROUND AND OBJECTIVE Bleeding on probing (BOP) is a widely accepted measure used in periodontal diagnostics. Previous studies suggest that several factors can affect BOP propensity. The aim of this study was to investigate the relative impact of different local and modifying factors on BOP levels. MATERIALS AND METHODS The oral health of five hundred and forty-four adolescents (two birth cohorts) aged 15-17 years living in Kotka, Finland, was examined including periodontal probing depth, visible plaque index, root calculus, and BOP. Whole saliva samples were collected and measured for active matrix metalloproteinase-8 (aMMP-8) by time-resolved immunofluorometric assay (IFMA). RESULTS Bacterial plaque/calculus accumulation (oral hygiene) had a major influence on BOP levels. The relative impact was several times greater compared with the extent of periodontal pocketing, aMMP-8 levels, smoking, toothbrushing, or gender. Furthermore, BOP levels were significantly elevated among adolescents with poor oral hygiene than good oral hygiene even if adjusted for the extent of periodontal pocketing (P < .001). BOP levels could be low even if several ≥ 4 mm deep periodontal pockets existed. The difference in the extent of periodontal pocketing was not significant between the two birth cohorts of adolescents (P = .731). CONCLUSIONS BOP levels can be regarded as an important indicator of the extent of bacterial challenge and its adverse effects on the gingival inflammation. However, the level of oral hygiene may mask the association between the extent of gingival bleeding and the severity of the periodontal inflammatory condition. Thus, relying on BOP levels (below 10% or 20%) may provide insufficient information about the periodontal treatment need of an adolescent depending on his/her level of oral hygiene. Yet, more research is needed to confirm the results, also in adult populations.
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Affiliation(s)
- Ismo T Räisänen
- Department of Oral and Maxillofacial Diseases, Head and Neck Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Timo Sorsa
- Department of Oral and Maxillofacial Diseases, Head and Neck Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland.,Division of Periodontology, Department of Dental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Taina Tervahartiala
- Department of Oral and Maxillofacial Diseases, Head and Neck Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Teija Raivisto
- Department of Oral and Maxillofacial Diseases, Head and Neck Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Anna Maria Heikkinen
- Department of Oral and Maxillofacial Diseases, Head and Neck Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
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Gul SS, Abdulkareem AA, Sha AM, Rawlinson A. Diagnostic Accuracy of Oral Fluids Biomarker Profile to Determine the Current and Future Status of Periodontal and Peri-Implant Diseases. Diagnostics (Basel) 2020; 10:E838. [PMID: 33081038 PMCID: PMC7603129 DOI: 10.3390/diagnostics10100838] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 10/10/2020] [Accepted: 10/16/2020] [Indexed: 02/06/2023] Open
Abstract
Severe periodontitis is ranked as the sixth most prevalent disease affecting humankind, with an estimated 740 million people affected worldwide. The diagnosis of periodontal diseases mainly relies upon assessment of conventional clinical parameters. However, these parameters reflect past, rather than current, clinical status or future disease progression and, likely, outcome of periodontal treatment. Specific and sensitive biomarkers for periodontal diseases have been examined widely to address these issues and some biomarkers have been translated as point-of-care (PoC) tests. The aim of this review was to provide an update on PoC tests for use in the diagnosis and management of periodontal diseases. Among the PoC tests developed so far, active matrix metalloproteinase-8 has shown promising results in terms of diagnostic and prognostic values. However, further studies are required to increase the sensitivity and specificity via combining more than one biomarker and merging these test kits with periodontal risk assessment tools. Furthermore, the validity of these test kits needs to be investigated by applying the results in further independent studies and the impact on these test kits', together with the results of risk factors for periodontal diseases, such as diabetes and smoking, also needs to be examined.
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Affiliation(s)
- Sarhang S. Gul
- College of Dentistry, Periodontics Department, University of Sulaimani, Sulaymaniyah 1124–30, Iraq;
| | - Ali A. Abdulkareem
- Department of Periodontics, College of Dentistry, University of Baghdad, Baghdad 10011, Iraq;
| | - Aram M. Sha
- College of Dentistry, Periodontics Department, University of Sulaimani, Sulaymaniyah 1124–30, Iraq;
| | - Andrew Rawlinson
- Academic Unit of Restorative Dentistry, School of Clinical Dentistry, University of Sheffield, Sheffield S10 2TA, UK;
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Räisänen IT, Umeizudike KA, Pärnänen P, Heikkilä P, Tervahartiala T, Nwhator SO, Grigoriadis A, Sakellari D, Sorsa T. Periodontal disease and targeted prevention using aMMP-8 point-of-care oral fluid analytics in the COVID-19 era. Med Hypotheses 2020; 144:110276. [PMID: 33254580 PMCID: PMC7492808 DOI: 10.1016/j.mehy.2020.110276] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 08/02/2020] [Accepted: 09/12/2020] [Indexed: 02/06/2023]
Abstract
Periodontal disease is a chronic multifactorial infectious and inflammatory disease associated with several chronic systemic diseases, such as diabetes, cardiovascular diseases (CVD), chronic obstructive pulmonary disease, hypertension, Alzheimer’s disease and so on. These same systemic diseases have been associated with severe COVID-19 infections. Several recent studies have suggested hypotheses for the potential association between periodontal disease and severe COVID-19. Periodontal disease is also one of the most prevalent diseases globally. All this supports the importance of good oral health, also in the COVID-19 era. Thus, new strategies and approaches to identify patients at risk of periodontal disease could be beneficial to enhance secondary prevention, especially if targeted to COVID-19 risk groups. Diagnostic biomarkers for periodontal disease have been researched extensively. Potential biomarkers in oral fluid with currently available rapid non-invasive point-of-care technology, such as aMMP-8, could help to extend screening and identification of patients at risk for periodontal disease also to situations and places where professional dental expertise and equipment are limited or unavailable. i.e., nursing and care homes, and rural and distant places. The oral fluid point-of-care technologies could also be useful in the hands of medical professionals (diabetes, CVD, etc.) to identify patients at risk for undiagnosed periodontal disease and to refer them to a dentist for examination and evaluation. Finally, if there is a causality between periodontal disease and severe COVID-19 infections, these point-of-care oral fluid biomarker technologies could possibly also help in the assessment of the risk of deterioration and complications.
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Affiliation(s)
- Ismo T Räisänen
- Department of Oral and Maxillofacial Diseases, Helsinki University and University Hospital, Helsinki, Finland.
| | - Kehinde A Umeizudike
- Department of Preventive Dentistry, Faculty of Dental Sciences, College of Medicine, University of Lagos, Lagos, Nigeria
| | - Pirjo Pärnänen
- Department of Oral and Maxillofacial Diseases, Helsinki University and University Hospital, Helsinki, Finland
| | - Pia Heikkilä
- Department of Oral and Maxillofacial Diseases, Helsinki University and University Hospital, Helsinki, Finland
| | - Taina Tervahartiala
- Department of Oral and Maxillofacial Diseases, Helsinki University and University Hospital, Helsinki, Finland
| | - Solomon O Nwhator
- Department of Preventive and Community Dentistry, Obafemi Awolowo University, Ile-Ife, Nigeria
| | - Andreas Grigoriadis
- Department of Periodontology, 424 General Army Hospital, Thessaloniki, Greece; Department of Preventive Dentistry, Periodontology, and Implant Biology, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Dimitra Sakellari
- Department of Preventive Dentistry, Periodontology, and Implant Biology, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Timo Sorsa
- Department of Oral and Maxillofacial Diseases, Helsinki University and University Hospital, Helsinki, Finland; Department of Oral Diseases, Karolinska Institutet, Huddinge, Sweden
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Nardi GM, Cesarano F, Papa G, Chiavistelli L, Ardan R, Jedlinski M, Mazur M, Grassi R, Grassi FR. Evaluation of Salivary Matrix Metalloproteinase (MMP-8) in Periodontal Patients Undergoing Non-Surgical Periodontal Therapy and Mouthwash Based on Ozonated Olive Oil: A Randomized Clinical Trial. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:E6619. [PMID: 32932898 PMCID: PMC7558934 DOI: 10.3390/ijerph17186619] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Accepted: 09/09/2020] [Indexed: 11/17/2022]
Abstract
Background: Extracellular matrix metalloproteinases (MMPs) play a pivotal role in the damage to the periodontal tissue in patients with periodontitis. Scaling and root planning (SRP) attempt to control the plaque amount and consequentially reduce the bacterial load. Non-surgical periodontal treatment could be integrated with drug therapy and physiotherapy procedures such as ozone therapy. The aim of this study was to evaluate in a cohort of patients with a diagnosis of periodontitis: (1) the efficacy of non-surgical periodontal therapy assisted by the use of ozonated olive oil-based mouthwash on salivary metalloproteinase (MMP-8) and (2) the reduction of periodontal indices. Methods: Ninety-six subjects with a diagnosis of periodontitis were enrolled in this study and randomly assigned to the study group (SRP + mouthwash) or control group (SRP). The study duration was 3 months. Data on MMP-8, plaque index (PI), bleeding on probing (BoP) and probing pocket depth (PPD) were recorded at T0, T1 (14 days), T2 (1 month) and T3 (6 months). Group differences were assessed using Student's t-test for independent samples. Results: A significant improvement in PI, BoP, PPD and salivary MMP-8 levels was observed in both groups. An analysis of differences in relative changes of indices revealed the efficacy of ozonated olive oil in decreasing MMP-8 level. Simultaneously, it slowed the decrease of BoP index. Conclusions: Scaling and root plaining with the aid of ozonated olive oil mouthwash were found to be more effective on salivary MMP-8 reduction than scaling and root plaining alone.
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Affiliation(s)
- Gianna Maria Nardi
- Department of Dental and Maxillofacial Sciences, Sapienza University of Rome, 00161 Rome, Italy; (G.M.N.); (F.C.); (G.P.); (L.C.)
| | - Francesca Cesarano
- Department of Dental and Maxillofacial Sciences, Sapienza University of Rome, 00161 Rome, Italy; (G.M.N.); (F.C.); (G.P.); (L.C.)
| | - Giulio Papa
- Department of Dental and Maxillofacial Sciences, Sapienza University of Rome, 00161 Rome, Italy; (G.M.N.); (F.C.); (G.P.); (L.C.)
| | - Lorella Chiavistelli
- Department of Dental and Maxillofacial Sciences, Sapienza University of Rome, 00161 Rome, Italy; (G.M.N.); (F.C.); (G.P.); (L.C.)
| | - Roman Ardan
- Chair of Econometrics, Department of Economic Sciences, Koszalin University of Technology, 75-343 Koszalin, Poland;
| | - Maciej Jedlinski
- Department of Interdisciplinary Dentistry, Pomeranian Medical University in Szczecin, 70-111 Szczecin, Poland;
| | - Marta Mazur
- Department of Dental and Maxillofacial Sciences, Sapienza University of Rome, 00161 Rome, Italy; (G.M.N.); (F.C.); (G.P.); (L.C.)
| | - Roberta Grassi
- Department of Biomedical Sciences, University of Sassari, 07100 Sassari, Italy;
| | - Felice Roberto Grassi
- Department of Basic Medical Sciences, Neurosciences and Sense Organs, Aldo Moro University of Bari, 70122 Bari, Italy;
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Keles Yucel ZP, Afacan B, Emingil G, Tervahartiala T, Kose T, Sorsa T. Local and systemic levels of aMMP‐8 in gingivitis and stage 3 grade C periodontitis. J Periodontal Res 2020; 55:887-894. [DOI: 10.1111/jre.12781] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 05/21/2020] [Accepted: 05/30/2020] [Indexed: 12/19/2022]
Affiliation(s)
| | - Beral Afacan
- Department of Periodontology School of Dentistry Aydın Adnan Menderes University Aydin Turkey
| | - Gulnur Emingil
- Department of Periodontology School of Dentistry Ege University Izmir Turkey
| | - Taina Tervahartiala
- Department of Oral and Maxillofacial Diseases Helsinki University Hospital University of Helsinki Helsinki Finland
| | - Timur Kose
- Department of Biostatistics and Medical Informatics School of Medicine Ege University Izmir Turkey
| | - Timo Sorsa
- Department of Oral and Maxillofacial Diseases Helsinki University Hospital University of Helsinki Helsinki Finland
- Department of Oral Diseases Karolinska Institute Huddinge Sweden
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Buzalaf MAR, Ortiz ADC, Carvalho TS, Fideles SOM, Araújo TT, Moraes SM, Buzalaf NR, Reis FN. Saliva as a diagnostic tool for dental caries, periodontal disease and cancer: is there a need for more biomarkers? Expert Rev Mol Diagn 2020; 20:543-555. [PMID: 32223655 DOI: 10.1080/14737159.2020.1743686] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Introduction: A biomarker is a biological indicator of normal or pathogenic processes. Identification of biomarkers is useful for the prevention, diagnosis and prognosis of diseases as well as for monitoring the progression of pathological disorders. Several types of molecules present in biological fluids can act as biomarkers such as DNA, coding and non-coding RNA, lipids, metabolites, proteins and even microbes. In this context, saliva emerges as a useful diagnostic tool for the detection of biomarkers involved with oral and systemic diseases, since it reflects the pathophysiological conditions of the organism and allows early, rapid, practical and noninvasive detection of biomarkers.Areas covered: This review discusses the properties of saliva as a diagnostic tool and addresses the main identified biomarkers related to dental caries, periodontal disease, head and neck cancer and other types of cancer of considerable incidence among the world population.Expert commentary: Despite extensive efforts which have been directed toward the identification of one or a combination of biomarkers with good predictive values for the early detection of dental caries, periodontal disease and cancer, these biomarkers still need validation before chairside point-of-care devices can be widely used in the clinic.
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Sorsa T, Alassiri S, Grigoriadis A, Räisänen IT, Pärnänen P, Nwhator SO, Gieselmann DR, Sakellari D. Active MMP-8 (aMMP-8) as a Grading and Staging Biomarker in the Periodontitis Classification. Diagnostics (Basel) 2020; 10:diagnostics10020061. [PMID: 31979091 PMCID: PMC7168924 DOI: 10.3390/diagnostics10020061] [Citation(s) in RCA: 84] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2019] [Revised: 01/16/2020] [Accepted: 01/20/2020] [Indexed: 12/16/2022] Open
Abstract
The aim of this study was to investigate the utility of incorporating active matrix metalloproteinase-8 (aMMP-8) as a biomarker into the new periodontitis classification system (stage/grade) presented in 2018. This study included 150 Greek adults aged 25-78, of whom 74 were men and 76 women. Participants were tested with an aMMP-8 point-of-care mouthrinse test, after which a full-mouth clinical examination was performed to assess their periodontal and oral health. The aMMP-8 levels in mouthrinse were significantly lower among healthy patients compared with patients in more severe periodontitis stages and grades (Kruskal-Wallis test and Dunn-Bonferroni test for pairwise post-hoc comparisons; p < 0.01 and p < 0.05, respectively). Furthermore, aMMP-8 levels were less correlated with plaque levels than bleeding on probing (BOP) (Spearman's rho = 0.269, p < 0.001; Spearman's rho = 0.586, p < 0.001); respectively). Thus, aMMP-8 was more robust to the confounding effects of oral hygiene than traditional periodontal parameter bleeding on probing. The aMMP-8 point-of-care mouthrinse test can be utilized as an adjunctive and preventive diagnostic tool to identify periodontal disease, classified by stage and grade, and ongoing periodontal breakdown chairside in clinical practice in only 5 min. Overall, integrating aMMP-8 into the new periodontitis classification system seems beneficial.
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Affiliation(s)
- Timo Sorsa
- Department of Oral and Maxillofacial Diseases, Head and Neck Center, University of Helsinki and Helsinki University Hospital, P.O. Box 63 (Haartmaninkatu 8) FI-00014, 00100 Helsinki, Finland
- Division of Periodontology, Department of Dental Medicine, Karolinska Institutet, SE-171 77 Stockholm, Sweden
- Correspondence: (T.S.); (I.T.R.)
| | - Saeed Alassiri
- Department of Oral and Maxillofacial Diseases, Head and Neck Center, University of Helsinki and Helsinki University Hospital, P.O. Box 63 (Haartmaninkatu 8) FI-00014, 00100 Helsinki, Finland
| | - Andreas Grigoriadis
- Department of Preventive Dentistry, Periodontology and Implant Biology, Dental School, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
- 424 General Army Hospital, 54124 Thessaloniki, Greece
| | - Ismo T. Räisänen
- Department of Oral and Maxillofacial Diseases, Head and Neck Center, University of Helsinki and Helsinki University Hospital, P.O. Box 63 (Haartmaninkatu 8) FI-00014, 00100 Helsinki, Finland
- Correspondence: (T.S.); (I.T.R.)
| | - Pirjo Pärnänen
- Department of Oral and Maxillofacial Diseases, Head and Neck Center, University of Helsinki and Helsinki University Hospital, P.O. Box 63 (Haartmaninkatu 8) FI-00014, 00100 Helsinki, Finland
| | - Solomon O. Nwhator
- Department of Preventive & Community Dentistry, Faculty of Dentistry, College of Health Sciences, Obafemi Awolowo University, Ile-Ife 220104, Osun State, Nigeria
| | - Dirk-Rolf Gieselmann
- Institute for Molecular Diagnostics (IMOD), Bonner Str. 84, 42697 Solingen, Germany
| | - Dimitra Sakellari
- Department of Preventive Dentistry, Periodontology and Implant Biology, Dental School, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
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Silbereisen A, Alassiri S, Bao K, Grossmann J, Nanni P, Fernandez C, Tervahartiala T, Nascimento GG, Belibasakis GN, Heikkinen A, Lopez R, Sorsa T, Bostanci N. Label‐Free Quantitative Proteomics versus Antibody‐Based Assays to Measure Neutrophil‐Derived Enzymes in Saliva. Proteomics Clin Appl 2020; 14:e1900050. [DOI: 10.1002/prca.201900050] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Revised: 11/20/2019] [Indexed: 12/25/2022]
Affiliation(s)
- Angelika Silbereisen
- Section of Periodontology and Dental Prevention Division of Oral Diseases Department of Dental Medicine Karolinska Institutet Alfred Nobels allé 8 14152 Huddinge Stockholm Sweden
| | - Saeed Alassiri
- Department of Oral and Maxillofacial Diseases University of Helsinki Helsinki University Central Hospital P.O. Box 41 (Mannerheimintie 172) 00014 Helsinki Finland
| | - Kai Bao
- Section of Periodontology and Dental Prevention Division of Oral Diseases Department of Dental Medicine Karolinska Institutet Alfred Nobels allé 8 14152 Huddinge Stockholm Sweden
| | - Jonas Grossmann
- Functional Genomics Center Zurich ETH Zurich and University of Zurich Winterthurerstrasse 190 8057 Zurich Switzerland
| | - Paolo Nanni
- Functional Genomics Center Zurich ETH Zurich and University of Zurich Winterthurerstrasse 190 8057 Zurich Switzerland
| | - Claudia Fernandez
- Functional Genomics Center Zurich ETH Zurich and University of Zurich Winterthurerstrasse 190 8057 Zurich Switzerland
| | - Taina Tervahartiala
- Department of Oral and Maxillofacial Diseases University of Helsinki Helsinki University Central Hospital P.O. Box 41 (Mannerheimintie 172) 00014 Helsinki Finland
| | - Gustavo G. Nascimento
- Section of Periodontology Department of Dentistry and Oral Health Aarhus University Vennelyst Boulevard 9 8000 Aarhus C Denmark
| | - Georgios N. Belibasakis
- Section of Periodontology and Dental Prevention Division of Oral Diseases Department of Dental Medicine Karolinska Institutet Alfred Nobels allé 8 14152 Huddinge Stockholm Sweden
| | - Anna‐Maria Heikkinen
- Department of Oral and Maxillofacial Diseases University of Helsinki Helsinki University Central Hospital P.O. Box 41 (Mannerheimintie 172) 00014 Helsinki Finland
| | - Rodrigo Lopez
- Section of Periodontology Department of Dentistry and Oral Health Aarhus University Vennelyst Boulevard 9 8000 Aarhus C Denmark
| | - Timo Sorsa
- Section of Periodontology and Dental Prevention Division of Oral Diseases Department of Dental Medicine Karolinska Institutet Alfred Nobels allé 8 14152 Huddinge Stockholm Sweden
- Department of Oral and Maxillofacial Diseases University of Helsinki Helsinki University Central Hospital P.O. Box 41 (Mannerheimintie 172) 00014 Helsinki Finland
| | - Nagihan Bostanci
- Section of Periodontology and Dental Prevention Division of Oral Diseases Department of Dental Medicine Karolinska Institutet Alfred Nobels allé 8 14152 Huddinge Stockholm Sweden
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41
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On the diagnostic discrimination ability of mouthrinse and salivary aMMP-8 point-of-care testing regarding periodontal health and disease. Diagn Microbiol Infect Dis 2019; 95:114871. [DOI: 10.1016/j.diagmicrobio.2019.114871] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2019] [Revised: 07/18/2019] [Accepted: 07/20/2019] [Indexed: 01/27/2023]
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42
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Prediabetes/Diabetes Can Be Screened at the Dental Office by a Low-Cost and Fast Chair-Side/Point-of-Care aMMP-8 Immunotest. Diagnostics (Basel) 2019; 9:diagnostics9040151. [PMID: 31627410 PMCID: PMC6963402 DOI: 10.3390/diagnostics9040151] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Revised: 10/10/2019] [Accepted: 10/15/2019] [Indexed: 11/17/2022] Open
Abstract
Pre-diabetes and diabetes are strongly associated with periodontal disease (gingivitis and periodontitis), and these conditions are known to upregulate aMMP-8 in inflamed gingiva and oral fluids. Thus, it would be feasible to screen for prediabetes and diabetes at the dental office by chairside tests. Chair-side assessment of HbA1c and a quantitative point-of-care (PoC) active matrix metalloproteinase (aMMP)-8 oral rinse immunotest developed for periodontal diseases, were performed on patients (n = 69) attending a Periodontology University Clinic who fulfilled the criteria for testing according to the screening questionnaire of the Centers for Disease Control and Prevention, USA. Clinical parameters of periodontal disease were also recorded with an automated probe. Twenty seven-point-five percent of the subjects were found with previously unknown hyperglycemia (HbA1c ≥ 5.7%). There was a statistically-significant positive association between the aMMP-8test and prediabetes (p < 0.05, unadjusted and adjusted for BMI and age ≥ 45 years logistic regression models). The dental setting is suitable for opportunistic screening for undiagnosed diabetes and pre-diabetes and point-of-care HbA1c, especially when combined with aMMP-8 assessment by dental professionals, being convenient and effective.
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43
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Huang W, Wu J, Mao Y, Zhu S, Huang GF, Petritis B, Huang RP. Developing a periodontal disease antibody array for the prediction of severe periodontal disease using machine learning classifiers. J Periodontol 2019; 91:232-243. [PMID: 31397883 DOI: 10.1002/jper.19-0173] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Revised: 06/24/2019] [Accepted: 06/29/2019] [Indexed: 12/12/2022]
Abstract
BACKGROUND The aim of this study was to simultaneously and quantitatively assess the expression levels of 20 periodontal disease-related proteins in gingival crevicular fluid (GCF) from normal controls (NOR) and severe periodontitis (SP) patients with an antibody array. METHODS Antibodies against 20 periodontal disease-related proteins were spotted onto a glass slide to create a periodontal disease antibody array (PDD). The array was then incubated with GCF samples collected from 25 NOR and 25 SP patients. Differentially expressed proteins between NOR and SP patients were then used to build receiver operator characteristic (ROC) curves and compare five classification models, including support vector machine, random forest, k nearest neighbor, linear discriminant analysis, and Classification and Regression Trees. RESULTS Seven proteins (C-reactive protein, interleukin [IL]-1α, interleukin-1β, interleukin-8, matrix metalloproteinase-13, osteoprotegerin, and osteoactivin) were significantly upregulated in SP patients compared with NOR, while receptor activator of nuclear factor-kappa was significantly downregulated. The highest diagnostic accuracy using a ROC curve was observed for IL-1β with an area under the curve of 0.984. Five of the proteins (IL-1β, IL-8, MMP-13, osteoprotegerin, and osteoactivin) were identified as important features for classification. Linear discriminant analysis had the highest classification accuracy across the five classification models that were tested. CONCLUSION This study highlights the potential of antibody arrays to diagnose periodontal disease.
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Affiliation(s)
- Wei Huang
- RayBiotech, Guangzhou, Guangzhou, Guangdong, P. R. China
| | - Jian Wu
- Department of Stomatology, The Affiliated Third Hospital of Sun Yat-sen University, Sun Yat-sen University, Guangzhou, Guangdong, P. R. China
| | | | - Siwei Zhu
- RayBiotech, Guangzhou, Guangzhou, Guangdong, P. R. China
| | | | | | - Ruo-Pan Huang
- RayBiotech, Guangzhou, Guangzhou, Guangdong, P. R. China.,RayBiotech, Peachtree Corners, GA, USA.,South China Biochip Research Center, Guangzhou, Guangdong, P. R. China.,Affiliated Cancer Hospital and Institute of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, P. R. China.,Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, P. R. China
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44
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Schmalz G, Hübscher AE, Angermann H, Schmidt J, Schmickler J, Legler TJ, Ziebolz D. Associations of chairside salivary aMMP-8 findings with periodontal parameters, potentially periodontal pathogenic bacteria and selected blood parameters in systemically healthy adults. Diagn Microbiol Infect Dis 2019; 95:179-184. [PMID: 31174997 DOI: 10.1016/j.diagmicrobio.2019.05.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Revised: 04/30/2019] [Accepted: 05/04/2019] [Indexed: 12/19/2022]
Abstract
The aim of this cross-sectional study was to investigate associations between salivary active matrix-metalloproteinase 8 (aMMP-8) and periodontitis severity, potentially periodontal pathogenic bacteria as well as blood parameters in generally healthy participants. Therefore, 188 participants with a mean age of 48.9 ± 8 years were examined. The periodontitis severity was assessed based on periodontal probing depth and clinical attachment loss. Both, aMMP-8 and microbiological analysis were performed using a validated, commercially available test system. Blood values were utilized from regular differential blood count. The aMMP-8 findings were associated with the periodontitis severity (P < 0.01), as well as with the prevalence of Porphyromonas gingivalis, Tannerella forsythia, Prevotella intermedia, Parvimonas micra, Camphylobacter rectus and Eubacterium nodatum (Pi < 0.05). No associations between aMMP-8 and the examined blood parameters were found (Pi > 0.05). In conclusion, salivary aMMP-8 findings seem to reflect periodontal disease severity as a result of an immunoreaction, especially against bacteria with high periodontal pathogenic potential.
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Affiliation(s)
- Gerhard Schmalz
- Dept. of Cariology, Endodontology and Periodontology, University of Leipzig, Germany
| | - Anna Elisabeth Hübscher
- Dept. of Preventive Dentistry, Periodontology and Cariology, University Medical Centre Goettingen, Germany
| | - Helena Angermann
- Dept. of Preventive Dentistry, Periodontology and Cariology, University Medical Centre Goettingen, Germany
| | - Jana Schmidt
- Dept. of Cariology, Endodontology and Periodontology, University of Leipzig, Germany
| | - Jan Schmickler
- Dept. of Cariology, Endodontology and Periodontology, University of Leipzig, Germany
| | - Tobias J Legler
- Department of Transfusion Medicine, University Medical Centre Goettingen, Germany
| | - Dirk Ziebolz
- Dept. of Cariology, Endodontology and Periodontology, University of Leipzig, Germany.
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45
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Prasanna JS, Aishwarya MD, Karunakar P, Rekharani K, Vijayalakshmi B, Jharna P. Evaluation of collagenase-3 matrix metalloproteinase-13 gene-associated polymorphisms 11A/12A and -77A/G and its associated alleles with and without periodontitis. J Indian Soc Periodontol 2019; 22:474-479. [PMID: 30631224 PMCID: PMC6305098 DOI: 10.4103/jisp.jisp_333_18] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Context: Connective tissue devastation in periodontitis and other chronic inflammatory diseases is a major concern. There are several inflammatory mediators associated with this process among which matrix metalloproteinases (MMPs) play a predominant role. Collagen degradation is primarily mediated by the collagenases. MMP-13 is familiar as collagenase-3, which has the aptitude to humiliate fibrillar collagen. Aims: This study aims to evaluate MMP-13 promoter polymorphism, 11A/12A, and −77A/G and associated alleles in patients with and without chronic periodontitis (CP). Settings and Design: This was an observational case–control study. Materials and Methods: Of the total 100 patients, 50 with CP (test group) and 50 without CP (Control group), blood was collected for deoxyribonucleic acid isolation. The 11A/12A and −77A/G polymorphisms of the MMP-13 gene were picked out by polymerase chain reaction (PCR)- single-strand conformation polymorphism analysis method and PCR-restriction fragment length polymorphism by BseNI restriction enzyme, respectively. Statistical Analysis Used: Association between MMP-13 genotype (GTs) (11A/12A, 11A/11A, 12A/12A) and (AA, AG, GG) was assessed by Chi-square and Student's t-test for intergroup comparison. Results: 11A/12A GT was seen in 24% and 20%, 11A/11A 64% and 72%, 12A/12A 12% and 8% in test and control groups, respectively. However, the association was not statistically significant. −77A/G polymorphism associated GT s AA was 56% and 62%, AG 24% and 28%, GG 20% and 10% in test and controls, respectively. An association of GG was statistically significant. Conclusion: The present study results indicated that MMP-13 −77A/G gene polymorphisms, GG GT may be predicted intensive ability for CP. On the other hand, there was no significant association between MMP-13 11A/12A gene polymorphisms with CP.
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Affiliation(s)
- Jammula Surya Prasanna
- Department of Periodontics, Panineeya Mahavidyalaya Institute of Dental Sciences and Research Centre, Hyderabad, Telangana, India
| | - Mutyap Divya Aishwarya
- Department of Periodontics, Panineeya Mahavidyalaya Institute of Dental Sciences and Research Centre, Hyderabad, Telangana, India
| | - Parupalli Karunakar
- Department of Conservative and Endodontics, Panineeya Mahavidyalaya Institute of Dental Sciences and Research Centre, Hyderabad, Telangana, India
| | - Koduganti Rekharani
- Department of Periodontics, Panineeya Mahavidyalaya Institute of Dental Sciences and Research Centre, Hyderabad, Telangana, India
| | - Bodiga Vijayalakshmi
- Department of Genetics, Institute of Genetics and Hospital for Genetic Diseases, Hyderabad, Telangana, India
| | - Puppala Jharna
- Department of Genetics, Institute of Genetics and Hospital for Genetic Diseases, Hyderabad, Telangana, India
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Gürsoy UK, Könönen E, Tervahartiala T, Gürsoy M, Pitkänen J, Torvi P, Suominen AL, Pussinen P, Sorsa T. Molecular forms and fragments of salivary MMP-8 in relation to periodontitis. J Clin Periodontol 2018; 45:1421-1428. [PMID: 30341955 DOI: 10.1111/jcpe.13024] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Revised: 10/08/2018] [Accepted: 10/15/2018] [Indexed: 12/30/2022]
Abstract
AIM To investigate the molecular forms of salivary matrix metalloproteinase (MMP)-8 in relation to periodontitis. MATERIALS AND METHODS Molecular forms, degree of activation and fragmentation of neutrophilic and mesenchymal-type MMP-8 isoforms were analysed from salivary samples of 81 subjects with generalized periodontitis, 63 subjects with localized periodontitis and 79 subjects without pocket teeth, by using western-immunoblots with computer quantitation. In addition, human recombinant proMMP-8 was in vitro activated by Treponema denticola chymotrypsin-like protease (Td-CTLP), sodium hypochlorite (NaOCl, 1 mM, oxidant) or amino phenyl mercuric acetate (APMA, 1 mM). RESULTS In saliva of periodontitis-affected individuals, MMP-8 is found in multiple forms, that is, complexes, active and pro-forms of neutrophilic and mesenchymal-type MMP-8, and especially 20-27 kDa fragments. The quantity of these fragments was elevated in both localized and generalized forms of periodontitis. Moreover, the tested activators (Td-CTLP, NaOCl and APMA) activated inactive proMMP-8, resulting in fragments of 20-27 kDa, in vitro, and salivary concentrations of T. denticola correlated significantly with salivary levels of fragmented MMP-8. CONCLUSION The present results indicate that during the development and progression of periodontitis, MMP-8 appears as activated and fragmented, and treponemal proteases most likely play role in this cascade.
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Affiliation(s)
- Ulvi K Gürsoy
- Periodontology, Institute of Dentistry, University of Turku, Turku, Finland
| | - Eija Könönen
- Periodontology, Institute of Dentistry, University of Turku, Turku, Finland.,Welfare Division, Oral Health Care, Turku, Finland
| | - Taina Tervahartiala
- Department of Oral and Maxillofacial Disease, Helsinki University Hospital, University of Helsinki, Helsinki, Finland
| | - Mervi Gürsoy
- Periodontology, Institute of Dentistry, University of Turku, Turku, Finland
| | - Jari Pitkänen
- Department of Oral and Maxillofacial Disease, Helsinki University Hospital, University of Helsinki, Helsinki, Finland
| | - Paula Torvi
- Department of Oral and Maxillofacial Disease, Helsinki University Hospital, University of Helsinki, Helsinki, Finland
| | - Anna Liisa Suominen
- Institute of Dentistry, University of Eastern Finland, Kuopio, Finland.,Health Monitoring Unit, National Institute for Health and Welfare, Helsinki, Finland.,Department of Oral and Maxillofacial Diseases, Kuopio University Hospital, Kuopio, Finland
| | - Pirkko Pussinen
- Department of Oral and Maxillofacial Disease, Helsinki University Hospital, University of Helsinki, Helsinki, Finland
| | - Timo Sorsa
- Department of Oral and Maxillofacial Disease, Helsinki University Hospital, University of Helsinki, Helsinki, Finland.,Periodontology, Department of Dental Medicine, Karolinska Institutet, Huddinge, Sweden
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47
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Al-Majid A, Alassiri S, Rathnayake N, Tervahartiala T, Gieselmann DR, Sorsa T. Matrix Metalloproteinase-8 as an Inflammatory and Prevention Biomarker in Periodontal and Peri-Implant Diseases. Int J Dent 2018; 2018:7891323. [PMID: 30305812 PMCID: PMC6165625 DOI: 10.1155/2018/7891323] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Accepted: 08/08/2018] [Indexed: 12/11/2022] Open
Abstract
Levels of and especially the degree of activation of matrix metalloproteinase (MMP-8) in oral fluids (i.e., saliva, mouth rinse, gingival crevicular fluid (GCF) and peri-implantitis sulcular fluid (PISF)) increase to pathologically elevated levels in the periodontal and peri-implant diseases. This study aimed at collecting and collating data from previously published studies and determining whether active MMP-8 (aMMP-8) could serve as a biomarker for the diagnosis and prevention of periodontal and peri-implant diseases. The literature search identified a total of 284 articles. Out of 284 articles, 61 articles were found to be relevant. Data obtained from the selected studies were combined, and it indicated that aMMP-8 in oral fluids exerts the strong potential to serve as a useful adjunctive diagnostic and preventive biotechnological tool in periodontal and peri-implant diseases. aMMP-8 can be used alone or in combination with other proinflammatory and/or microbiological biomarkers.
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Affiliation(s)
- Ahmed Al-Majid
- Clinic of Preventive Dentistry, Periodontology and Cariology, Center of Dental Medicine, University of Zurich, Zurich, Switzerland
| | - Saeed Alassiri
- Department of Oral and Maxillofacial Diseases, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Nilminie Rathnayake
- Karolinska Institutet, Department of Dental Medicine, Division of Periodontology, Stockholm, Sweden
| | - Taina Tervahartiala
- Department of Oral and Maxillofacial Diseases, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Dirk-Rolf Gieselmann
- Institute of Molecular Diagnostics, Dentognostics GmbH, Solingen and Jena, Germany
| | - Timo Sorsa
- Department of Oral and Maxillofacial Diseases, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
- Karolinska Institutet, Department of Dental Medicine, Division of Periodontology, Stockholm, Sweden
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48
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Leppilahti JM, Harjunmaa U, Järnstedt J, Mangani C, Hernández M, Tervahartiala T, Lopez R, Ashorn U, Ashorn P, Gieselmann DR, Sorsa T. Diagnosis of Newly Delivered Mothers for Periodontitis with a Novel Oral-Rinse aMMP-8 Point-of-Care Test in a Rural Malawian Population. Diagnostics (Basel) 2018; 8:diagnostics8030067. [PMID: 30223547 PMCID: PMC6164346 DOI: 10.3390/diagnostics8030067] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Revised: 09/07/2018] [Accepted: 09/12/2018] [Indexed: 12/28/2022] Open
Abstract
A novel qualitative point-of-care test of activated matrix metalloproteinase-8 (aMMP-8) using noninvasive oral rinse sampling procedures has been developed for the early detection of collagen breakdown indicating periodontal tissue destruction. The main object of this study was to assess the reliability of the test in a low-income setting to identify participants with history of periodontal destruction detected as alveolar bone loss (ABL) in radiographs. This cross-sectional study included 486 women who had recently delivered in rural Malawi. The aMMP-8 test and dental panoramic radiographs were taken within 48 h of delivery. The performance of the test in comparison to radiological examinations was tested by following the standards for reporting of diagnostic accuracy studies protocol (STARD) with respective statistical measures and 95% confidence intervals. From the 486 eligible participants, 461 mothers with complete data, aged from 15 to 46 years (mean 24.8, SD 6.0) were included in the analysis. ABL was identified in 116 of 461 participants. There was 56% agreement between the aMMP-8 test results and detected ABL (yes or no) in radiographs. Calculated sensitivity of the test was 80% (72–87%), specificity 48% (43–54%), positive predictive value 34% (31–37%), negative predictive value 88% (83–91%), positive likelihood ratio 1.55 (1.35–1.77), and negative likelihood ratio 0.41(0.28–0.60). The aMMP-8 test sensitivity and negative predictive value to identify the ABL cases were relatively high, but there was additionally a high rate of test-positive results in participants without ABL, especially in young mothers, leading to low overall agreement between the test results and radiological bone loss. Further longitudinal studies are needed to examine if the test positive subjects are in risk of future bone loss before the detectable signs of periodontitis in radiographs.
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Affiliation(s)
- Jussi M Leppilahti
- Department of Periodontology and Geriatric Dentistry, University of Oulu, Oulu 90014, Finland.
| | - Ulla Harjunmaa
- Center for Child Health Research, University of Tampere, Tampere 33014, Finland.
| | - Jorma Järnstedt
- Center for Child Health Research, University of Tampere, Tampere 33014, Finland.
| | - Charles Mangani
- College of Medicine, University of Malawi, Private Bag 360, Chichiri, Blantyre, Malawi.
| | - Marcela Hernández
- Laboratory of Periodontal Biology and Department of Pathology and Oral Medicine, Faculty of Dentistry, Universidad de Chile, Av. Sergio Livingstone Polhammer 943, Independencia, Santiago 8380492, Chile.
| | - Taina Tervahartiala
- Department of Oral and Maxillofacial Diseases, Helsinki University Central Hospital, Stenbäckinkatu 9, PO BOX 100, Helsinki 00029, Finland.
| | - Rodrigo Lopez
- Department of Dentistry and Oral Health, Aarhus University, Faculty of Health Sciences Aarhus University Vennelyst Boulevard 9, Aarhus 8000, Denmark.
| | - Ulla Ashorn
- Center for Child Health Research, University of Tampere, Tampere 33014, Finland.
| | - Per Ashorn
- Department of Paediatrics, Tampere University Hospital Central Hospital PO BOX 2000, Tampere 33521, Finland.
| | - Dirk-Rolf Gieselmann
- Institute for Molecular Diagnostics (IMOD), Bonner Str. 84, Solingen 42697, Germany.
| | - Timo Sorsa
- Division of Periodontology, Department of Dental Medicine, Karolinska Institute, Stockholm SE-171 77, Sweden.
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IL-12-mediated transcriptional regulation of matrix metalloproteinases. Biosci Rep 2018; 38:BSR20171420. [PMID: 29555826 PMCID: PMC5997794 DOI: 10.1042/bsr20171420] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2018] [Revised: 03/14/2018] [Accepted: 03/16/2018] [Indexed: 12/12/2022] Open
Abstract
Matrix metalloproteinases (MMPs) are extracellular matrix (ECM) remodelling enzymes involved in developmental processes, tissue remodelling and repair, inflammatory and immune diseases and cancer. In a recent issue of Bioscience Reports (vol. 37, issue 6, BSR20170973), Liu and colleagues investigated the expression of MMPs such as MMP-1 (interstitial collagenase), MMP-3 (stromelysin 1) and MMP-13 (collagenase 3) in human periodontal ligament fibroblasts (hPDLFs) regulated by interleukin-12 (IL-12), a cytokine implicated in inflammatory and immune responses. They showed that IL-12 activates canonical nuclear factor-κB (NF-κB) signalling leading to increased expression of MMP-1, MMP-3 and MMP-13, and to a smaller reduction in the expression of MMP-2 (gelatinase A) and MMP-9 (gelatinase B) at both mRNA and protein levels, with corresponding changes in the secreted levels of these ECM-remodelling and immune regulatory metalloproteinases. While canonical NF-κB signalling regulates these MMPs, it also interacts with additional factors to determine whether some of these MMPs are induced or downregulated, in response to IL-12. Here, we comment on the possible mechanisms of IL-12-mediated transcriptional regulation of MMPs.
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50
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De Colli M, Tortorella P, Agamennone M, Campestre C, Loiodice F, Cataldi A, Zara S. Bisphosfonate matrix metalloproteinase inhibitors for the treatment of periodontitis: An in vitro study. Int J Mol Med 2018; 42:651-657. [PMID: 29717767 DOI: 10.3892/ijmm.2018.3641] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Accepted: 03/15/2018] [Indexed: 11/06/2022] Open
Abstract
Periodontitis is an inflammatory disease caused by anaerobic bacteria, including Porphyromonas gingivalis. Lipopolysaccharide (LPS)‑stimulated persistent inflammation is responsible for an increase in matrix metalloproteinase (MMP) expression, resulting in periodontal tissue destruction. The aim of the present study was to investigate synthesized bisphosphonic MMP inhibitors, in an in vitro model consisting of human gingival fibroblasts exposed to LPS, and to compare the biological responses to those induced by zoledronate (ZA), a commercial bisphosphonate. MTT and lactate dehydrogenase (LDH) assays were used to measure cell viability and cytotoxicity, respectively. ELISA was performed to evaluate prostaglandin E2 (PGE2), interleukin (IL)6 and collagen secretion, while western blotting was used to analyze MMP expression. No effect on viability and low cytotoxicity were observed following treatment with bisphosphonate compounds. In the present study, treatment with compound 1 did not increase the release of PGE2 and IL6. Increased levels of collagen I secretion were reported when compound 3 and ZA were administered. An increase of MMP8 was observed following ZA treatment, while a decrease of MMP9 and MMP14 following treatment with compounds 1, 2 and ZA were reported. The performance of compound 1 was optimal in terms of cell viability. Compound 1 also did not induce inflammation, and had the ability to counteract LPS‑induced increases in MMP expression. These data suggested that compound 1 was the most suitable treatment to progress to an in vivo animal study, with the aim to confirm its use for the treatment of periodontitis.
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Affiliation(s)
- Marianna De Colli
- Department of Pharmacy, University 'G. d'Annunzio' Chieti‑Pescara, I‑66100 Chieti, Italy
| | - Paolo Tortorella
- Department of Pharmacy‑Pharmaceutical Science, University 'A. Moro' Bari, I‑70125 Bari, Italy
| | - Mariangela Agamennone
- Department of Pharmacy, University 'G. d'Annunzio' Chieti‑Pescara, I‑66100 Chieti, Italy
| | - Cristina Campestre
- Department of Pharmacy, University 'G. d'Annunzio' Chieti‑Pescara, I‑66100 Chieti, Italy
| | - Fulvio Loiodice
- Department of Pharmacy‑Pharmaceutical Science, University 'A. Moro' Bari, I‑70125 Bari, Italy
| | - Amelia Cataldi
- Department of Pharmacy, University 'G. d'Annunzio' Chieti‑Pescara, I‑66100 Chieti, Italy
| | - Susi Zara
- Department of Pharmacy, University 'G. d'Annunzio' Chieti‑Pescara, I‑66100 Chieti, Italy
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