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Tatar Yilmaz G, Yayli N, Tüzüner T, Bozdal G, Salmanli M, Renda G, Korkmaz B, Bozdeveci A, Alpay Karaoğlu Ş. Synthesis, Antimicrobial Activities, and Molecular Modeling Studies of Agents for the Sortase A Enzyme. Chem Biodivers 2024; 21:e202301659. [PMID: 38407541 DOI: 10.1002/cbdv.202301659] [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: 10/20/2023] [Revised: 02/21/2024] [Accepted: 02/24/2024] [Indexed: 02/27/2024]
Abstract
Sortase A (SrtA) is an attractive target for developing new anti-infective drugs that aim to interfere with essential virulence mechanisms, such as adhesion to host cells and biofilm formation. Herein, twenty hydroxy, nitro, bromo, fluoro, and methoxy substituted chalcone compounds were synthesized, antimicrobial activities and molecular modeling strategies against the SrtA enzyme were investigated. The most active compounds were found to be T2, T4, and T19 against Streptococcus mutans (S. mutans) with MIC values of 1.93, 3.8, 3.94 μg/mL, and docking scores of -6.46, -6.63, -6.73 kcal/mol, respectively. Also, these three active compounds showed better activity than the chlorohexidine (CHX) (MIC value: 4.88 μg/mL, docking score: -6.29 kcal/mol) in both in vitro and in silico. Structural stability and binding free energy analysis of S.mutans SrtA with active compounds were measured by molecular dynamic (MD) simulations throughout 100 nanoseconds (ns) time. It was observed that the stability of the critical interactions between these compounds and the target enzyme was preserved. To prove further, in vivo biological evaluation studies could be conducted for the most promising precursor compounds T2, T4, and T19, and it might open new avenues to the discovery of more potent SrtA inhibitors.
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Affiliation(s)
- Gizem Tatar Yilmaz
- Department of Biostatistics and Medical Informatics, Faculty of Medicine, Karadeniz Technical University, 61080, Trabzon, Turkiye
| | - Nurettin Yayli
- Department of Pharmacognosy, Faculty of Pharmacy, Karadeniz Technical University, 61080, Trabzon, Turkiye
| | - Tamer Tüzüner
- Department of Pediatric Dentistry, Faculty of Dentistry, Karadeniz Technical University, 61080, Trabzon, Turkiye
| | - Gözde Bozdal
- Department of Pharmacognosy, Faculty of Pharmacy, Karadeniz Technical University, 61080, Trabzon, Turkiye
| | - Merve Salmanli
- Department of Pediatric Dentistry, Faculty of Dentistry, Karadeniz Technical University, 61080, Trabzon, Turkiye
| | - Gülin Renda
- Department of Pharmacognosy, Faculty of Pharmacy, Karadeniz Technical University, 61080, Trabzon, Turkiye
| | - Büşra Korkmaz
- Department of Pharmacognosy, Faculty of Pharmacy, Karadeniz Technical University, 61080, Trabzon, Turkiye
| | - Arif Bozdeveci
- Department of Biology, Faculty of Arts and Sciences, Recep Tayyip Erdoğan University, 53100, Rize, Turkiye
| | - Şengül Alpay Karaoğlu
- Department of Biology, Faculty of Arts and Sciences, Recep Tayyip Erdoğan University, 53100, Rize, Turkiye
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Sahadi BO, Sebold M, André CB, Nima G, Dos Santos A, Chiari MDESDC, Nascimento FD, Tersariol ILDS, Giannini M. Effect of experimental dentin etchants on dentin bond strength, metalloproteinase inhibition, and antibiofilm activity. Dent Mater 2024; 40:e12-e23. [PMID: 38368137 DOI: 10.1016/j.dental.2024.02.017] [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: 05/18/2023] [Revised: 02/12/2024] [Accepted: 02/12/2024] [Indexed: 02/19/2024]
Abstract
OBJECTIVE this study evaluated dentin microtensile bond strength (µTBS) and failure modes (at 24 h and one year), bonding interface regarding hybridization, surface morphology regarding demineralization, in situ metalloproteinase (MMP) activity, and antibacterial effect of three dentin etchants compared to 35% phosphoric acid (PA). MATERIALS AND METHODS The Adper Single Bond 2 adhesive (3 M Oral Care) was applied on moist dentin etched with PA (control) or on air-dried dentin etched with 3% aluminum nitrate + 2% oxalic acid (AN), 6.8% ferric oxalate + 10% citric acid (FO), or 10% citric acid (CA). The µTBS test used 40 human teeth (n = 10). Failure modes and surface morphology were analyzed by scanning electron microscopy (n = 3), while bonding interface morphology and MMP activity were evaluated by laser scanning confocal microscopy (n = 3). Antibacterial activity was evaluated against S. Mutans biofilm by means of viable cells count (CFU/mL). RESULTS PA presented the highest bond strengths regardless of aging time. PA, AN, and CA showed stable bond strengths after one year of storage. Adhesive and mixed failures were predominant in all groups. Thin hybrid layers with short resin tags were observed for the experimental etchants. The AN-based etchant was able to inhibit MMP activity. All tested etchants presented antibacterial activity against S. Mutans biofilm. SIGNIFICANCE This study suggests different dentin etchants capable of inhibiting MMP activity while also acting as cavity disinfectants.
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Affiliation(s)
- Beatriz Ometto Sahadi
- Department of Restorative Dentistry, Operative Dentistry Division, University of Campinas, Piracicaba Dental School, Avenida Limeira 901, Areião, 13414-903 Piracicaba, SP, Brazil.
| | - Maicon Sebold
- Department of Restorative Dentistry, Operative Dentistry Division, University of Campinas, Piracicaba Dental School, Avenida Limeira 901, Areião, 13414-903 Piracicaba, SP, Brazil.
| | - Carolina Bosso André
- Department of Restorative Dentistry, Operative Dentistry Division, Federal University of Minas Gerais, School of Dentistry, Avenida Presidente Antonio Carlos 6627, Pampulha, 31270-901 Belo Horizonte, MG, Brazil.
| | - Gabriel Nima
- Department of Biomedical Sciences, Ethics, Research and Education, Universidad de los Andes, School of Dentistry, Monseñor Álvaro del Portillo 12455, Las Condes 12455, Santiago, Chile.
| | - Andressa Dos Santos
- Applied Chemistry Graduate Program, Midwest State University UNICENTRO, Alameda Élio Antônio Dalla Vechhia 838, Vila Carli, 85040-167 Guarapuava, PR, Brazil.
| | | | - Fábio Dupart Nascimento
- Department of Molecular Biology, Federal University of São Paulo, São Paulo 04021-001, SP, Brazil.
| | | | - Marcelo Giannini
- Department of Restorative Dentistry, Operative Dentistry Division, University of Campinas, Piracicaba Dental School, Avenida Limeira 901, Areião, 13414-903 Piracicaba, SP, Brazil.
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Kolte RA, Kolte AP, Bawankar PV, Bajaj VA. Effect of Nonsurgical Periodontal Therapy on Metabolic Control and Systemic Inflammatory Markers in Patients of Type 2 Diabetes Mellitus with Stage III Periodontitis. Contemp Clin Dent 2023; 14:45-51. [PMID: 37249991 PMCID: PMC10209773 DOI: 10.4103/ccd.ccd_514_21] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 01/28/2022] [Accepted: 02/15/2022] [Indexed: 11/07/2022] Open
Abstract
Background A reciprocal relationship is understood to exist between periodontal disease and type 2 diabetes mellitus (T2DM), and this intervention study aimed to evaluate the effects of nonsurgical periodontal therapy (NSPT) on metabolic control, systemic inflammation, and cytokines in patients of T2DM with Stage III periodontitis. Materials and Methods Sixty patients of T2DM with Stage III periodontitis were divided equally into two groups: intervention group (IG) and control group. Clinical parameters such as bleeding on probing (BOP), probing pocket depth (PPD), and clinical attachment level (CAL) were recorded at baseline and 3 and 6 months, and the serum samples were collected and processed at baseline and 6 months following NSPT to evaluate fasting plasma glucose, Glycosylated hemoglobin (HbA1c), interleukin-10 (IL-10), tumor necrosis factor-α (TNF-α), and high-sensitivity capsule-reactive protein (hs-CRP). Results The results indicated a significant improvement in clinical parameters of PPD and CAL 6 months after NSPT (P = 0.005) in both the groups. However, a significant decrease (P < 0.0001) in the TNF-α, hs-CRP, blood glucose, and HbA1c levels was seen after NSPT. On the other hand, an increase in anti-inflammatory cytokine IL-10 was observed after NSPT in the IG. The changes in the pretreatment and posttreatment levels of all clinical, biochemical, and metabolic parameters, were found to be significant in both the groups except BOP. Conclusion NSPT effectively improves periodontal condition, systemic inflammatory status, and glycemic control in patients of T2DM with Stage III periodontitis and decreases hs-CRP levels.
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Affiliation(s)
| | | | | | - Vinisha A. Bajaj
- VSPM Dental College and Research Centre, Nagpur, Maharashtra, India
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Enax J, Amaechi BT, Schulze zur Wiesche E, Meyer F. Overview on Adjunct Ingredients Used in Hydroxyapatite-Based Oral Care Products. Biomimetics (Basel) 2022; 7:biomimetics7040250. [PMID: 36546950 PMCID: PMC9775056 DOI: 10.3390/biomimetics7040250] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 12/14/2022] [Accepted: 12/15/2022] [Indexed: 12/23/2022] Open
Abstract
Hydroxyapatite, Ca5(PO4)3(OH), is a biomimetic active ingredient, which is used in commercial oral care products such as toothpastes and mouthwashes worldwide. Clinical studies (in vivo) as well as in situ and in vitro studies have shown the preventive effects of hydroxyapatite in various field of oral care. In some products, hydroxyapatite is combined with other active ingredients, to achieve an additional antibacterial effect or to promote gum health. This review analyzes the efficacy of six selected natural and nature-inspired ingredients that are commonly used together with hydroxyapatite. These additional actives are either antibacterial (lactoferrin, xylitol, and zinc) or promote gum health (allantoin, bisabolol, and hyaluronic acid). A systematic literature search was performed, and all studies found on each ingredient were analyzed. In summary, all analyzed ingredients mentioned in this review are well described in scientific studies on their beneficial effect for oral health and can be used to expand the preventive effect of hydroxyapatite in oral care products.
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Affiliation(s)
- Joachim Enax
- Research Department, Dr. Kurt Wolff GmbH & Co. KG, Johanneswerkstr. 34 36, 33611 Bielefeld, Germany
- Correspondence: (J.E.); (F.M.)
| | - Bennett T. Amaechi
- Department of Comprehensive Dentistry, School of Dentistry, University of Texas Health San Antonio, 7703 Floyd Curl Drive, San Antonio, TX 78229-3900, USA
| | - Erik Schulze zur Wiesche
- Research Department, Dr. Kurt Wolff GmbH & Co. KG, Johanneswerkstr. 34 36, 33611 Bielefeld, Germany
| | - Frederic Meyer
- Research Department, Dr. Kurt Wolff GmbH & Co. KG, Johanneswerkstr. 34 36, 33611 Bielefeld, Germany
- Correspondence: (J.E.); (F.M.)
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Salmanli M, Tatar Yilmaz G, Tuzuner T. Investigation of the antimicrobial activities of various antimicrobial agents on Streptococcus Mutans Sortase A through computer-aided drug design (CADD) approaches. COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE 2021; 212:106454. [PMID: 34656905 DOI: 10.1016/j.cmpb.2021.106454] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2021] [Accepted: 10/01/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND AND OBJECTIVE Tooth decay is a common chronic disease that causes pain, tooth loss, malnutrition, anxiety and significantly affects half of the world's population. Streptococcus mutans (S.mutans), is considered the main pathogen causing tooth decay. Sortase A (SrtA), one of the surface proteins of S. mutans, is a potential target in the development of antimicrobial and caries prevention agents for preventing infections associated with biofilm formation. Recently, various SrtA inhibitors, including small molecules and natural product, especially, trans-chalcone, chlorhexidine (CHX) and flavonoid compounds, which exhibit effective inhibition against SrtA, have been identified. However, due to the limited number of inhibitors, multi-drug resistance and side-effects the discovery of new inhibitors for SrtA is essential. METHODS In this case, various compounds aimed at the target enzyme underwent high-throughput screening with small molecule libraries. For this screening of a total of 178 compounds, 163 were found to be pharmacokinetically suitable by performing an absorption, distribution, metabolism, and excretion (ADME) analysis. Molecular docking was then applied to investigate the interaction mechanism among these suitable compounds and the target enzyme structure at the molecular level. RESULTS According to the results of the study, six compounds (CHEMBL243796 (kurarinone), CHEMBL2180472, CHEMBL3335591, CHEMBL373249, CHEMBL1395334, CHEMBL253467 (Isobavachalcone)) exhibited lower docking scores (-7.18, -6.59, -6.53, -6.47, -6.43, and -6.39 kcal/mol, respectively) against S. mutans SrtA than the positive control CHX (-6.29 kcal/mol). Finally, the 100 ns molecular dynamic simulations and binding free energy calculations were performed for the structure stability analysis of the enzyme with CHEMBL243796 (kurarinone), which showed the lowest docking score. As a result of these studies, the stability of the critical interactions between kurarinone and the target enzyme was preserved during the simulation time. CONCLUSIONS These results indicate that flavonoid and chalcone scaffold compounds are clinically more reliable and potent than CHX as novel inhibitory agents for inhibiting oral biofilm formation. These finding can provide important contribution to the future clinical trials in the development of therapeutically useful inhibitors of SrtA by virtually screening several chemical compounds more rapidly to select suitable compounds for the prevention and treatment of dental caries.
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Affiliation(s)
- Merve Salmanli
- Department of Pediatric, Faculty of Dentistry, Karadeniz Technical University, Trabzon, Turkey
| | - Gizem Tatar Yilmaz
- Department of Biostatistics and Medical Informatics, Karadeniz Technical University, Trabzon, Turkey
| | - Tamer Tuzuner
- Department of Pediatric, Faculty of Dentistry, Karadeniz Technical University, Trabzon, Turkey.
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Forcin LV, Oliveira TDS, Tomaz PLS, Matochek MHM, Polassi MR, Vilhena FV, Svizero NDR, D'Alpino PHP. Enamel remineralization and surface roughness after treatment with herbal-containing toothpastes. J Clin Exp Dent 2021; 13:e849-e858. [PMID: 34603613 PMCID: PMC8464391 DOI: 10.4317/jced.58025] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Accepted: 05/24/2021] [Indexed: 11/07/2022] Open
Abstract
Background Oral care products containing bioactive agents obtained from extracts of plant drugs were launched. This in vitro study investigated the effects of herbal-containing toothpastes associated or not with fluoride to remineralize the enamel after cariogenic challenge with pH cycling. The chemical and physical factors of toothpastes and the enamel surface roughness after brushing were also analyzed.
Material and Methods Sixty bovine enamel blocks were obtained and divided into 3 thirds: intact (untreated), demineralized (artificial caries lesion), and treated (caries lesion, pH cycling, and brushing with toothpastes). Toothpastes containing herbal compounds contained no fluoride [Galla chinensis (GCH)], low-F concentration [D’Or (DOR); Herbal Bliss (HBL)], or a different fluoride type [Elmex Anticaries (EAC)]. The results were compared to NaF-containing toothpastes: 1450 and 5000 ppm. Enamel blocks were brushed with the toothpastes using a pH-cycling model (7 days). The Knoop hardness (25g/10s) of the surface and the longitudinal sections were then evaluated. The percentage of surface hardness recovery (%SHR) was calculated. The enamel surface roughness, pH, particle size, zeta potential, and polydispersity index of toothpaste slurries were also evaluated. Data were statistically analyzed (α=5%).
Results No significance was observed when %SHR was compared (p>0.05). DOR, GCH, and HBL were more effective in remineralizing the enamel subsurface. Significantly higher surface roughness was observed when treated with EAC and GCH (p<0.05).
Conclusions All toothpastes were able to remineralize the enamel, especially the subsurface, with results equal or better than that of standard toothpastes. Key words:Enamel, hardness, roughness, toothpaste, tooth remineralization.
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Affiliation(s)
- Letícia-Vendrametto Forcin
- Hospital for Rehabilitation of Craniofacial Anomalies (HRAC-USP), Universidade de São Paulo, Bauru, SP, Brazil
| | | | | | | | | | | | - Nádia-da Rocha Svizero
- Hospital for Rehabilitation of Craniofacial Anomalies (HRAC-USP), Universidade de São Paulo, Bauru, SP, Brazil
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Arslan I, Baygin O, Tuzuner T, Erdemir F, Canakci A, Korkmaz FM. The effects of cavity disinfection on the nanoleakage of compomer restorations: an in vitro study. Eur Oral Res 2020; 54:16-24. [PMID: 32518906 PMCID: PMC7252532 DOI: 10.26650/eor.20200053] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Purpose: Cavity disinfection, in addition to routine caries removal methods, is recommended
to eliminate the microorganisms. The aim of this study was to compare the effect
of various systems Er,Cr:YSGG lasers, diode lasers and FotoSan and agents Corsodyl;
Cervitec and Cervitec Plus and Fluor Protector—on the nanoleakage of compomer
restorations when used for cavity disinfection. Materials and methods: A total of 40 intact human deciduous molar teeth containing Black V cavities (3×2×1.5
mm) on the buccal and lingual surfaces parallel to the cementoenamel junction
were randomly divided into 8 groups according to the cavity disinfection methods.
The antibacterial agents and systems were applied according to the manufacturer’s
instructions. Restorations were completed using a compomer. The restored teeth
were then subjected to thermocycling for 500 cycles in a water bath at 5°C and 55°C
with a dwell time of 30 seconds. After the thermocycling procedures, 1-mm sticks
were obtained from the center of each cavity to prepare for the nanoleakage test.
After the teeth were sectioned, they were immersed in 50 wt % ammoniacal silver
nitrate solution for 24 hours and dipped in photo-developing solutions for 8 hours
with fluorescent light irradiation. The samples were examined under a scanning
electron microscope (SEM). The non-parametric Kruskal-Wallis and Mann-Whitney
U test (p<0.05) were applied. Results: The Er,Cr:YSGG laser group showed significantly less nanoleakage than all of
the tested groups (p<0.01). The diode laser, Fluor protector and FotoSan groups
showed similar nanoleakage to that of the control group (p>0.05). The Corsodyl
(p<0.01) and Cervitec (p<0.001) groups showed significantly higher nanoleakage
than the control group. Conclusion: Er,Cr:YSGG laser irradiation which showed lower nanoleakage scores from either
control or tested groups can be recommended for cavity disinfection Additionally,
a diode laser and FotoSan, which have antibacterial effects and no negative effect
on leakage, can be used for cavity disinfection.
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Affiliation(s)
- Ipek Arslan
- Recep Tayyip Erdoğan University, Faculty of Dentistry, Department of Pediatric Dentistry, Rize,Turkey
| | - Ozgul Baygin
- Karadeniz Technical University, Faculty of Dentistry, Department of Pediatric Dentistry, Trabzon, Turkey
| | - Tamer Tuzuner
- Karadeniz Technical University, Faculty of Dentistry, Department of Pediatric Dentistry, Trabzon, Turkey
| | - Fatih Erdemir
- Karadeniz Technical University, Faculty of Engineering, Department of Metallurgical and Materials Engineering, Trabzon,Turkey
| | - Aykut Canakci
- Karadeniz Technical University, Faculty of Engineering, Department of Metallurgical and Materials Engineering, Trabzon,Turkey
| | - Fatih Mehmet Korkmaz
- Karadeniz Technical University, Faculty of Dentistry, Department of Prosthodontic, Trabzon,Turkey
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