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Hardan L, Chedid JCA, Bourgi R, Cuevas-Suárez CE, Lukomska-Szymanska M, Tosco V, Monjarás-Ávila AJ, Jabra M, Salloum-Yared F, Kharouf N, Mancino D, Haikel Y. Peptides in Dentistry: A Scoping Review. Bioengineering (Basel) 2023; 10:bioengineering10020214. [PMID: 36829708 PMCID: PMC9952573 DOI: 10.3390/bioengineering10020214] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 02/02/2023] [Accepted: 02/03/2023] [Indexed: 02/08/2023] Open
Abstract
Currently, it remains unclear which specific peptides could be appropriate for applications in different fields of dentistry. The aim of this scoping review was to scan the contemporary scientific papers related to the types, uses and applications of peptides in dentistry at the moment. Literature database searches were performed in the following databases: PubMed/MEDLINE, Scopus, Web of Science, Embase, and Scielo. A total of 133 articles involving the use of peptides in dentistry-related applications were included. The studies involved experimental designs in animals, microorganisms, or cells; clinical trials were also identified within this review. Most of the applications of peptides included caries management, implant osseointegration, guided tissue regeneration, vital pulp therapy, antimicrobial activity, enamel remineralization, periodontal therapy, the surface modification of tooth implants, and the modification of other restorative materials such as dental adhesives and denture base resins. The in vitro and in vivo studies included in this review suggested that peptides may have beneficial effects for treating early carious lesions, promoting cell adhesion, enhancing the adhesion strength of dental implants, and in tissue engineering as healthy promotors of the periodontium and antimicrobial agents. The lack of clinical trials should be highlighted, leaving a wide space available for the investigation of peptides in dentistry.
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Affiliation(s)
- Louis Hardan
- Department of Restorative Dentistry, School of Dentistry, Saint Joseph University, Beirut 1107 2180, Lebanon
| | - Jean Claude Abou Chedid
- Department of Pediatric Dentistry, Faculty of Dentistry, Saint Joseph University, Beirut 1107 2180, Lebanon
| | - Rim Bourgi
- Department of Restorative Dentistry, School of Dentistry, Saint Joseph University, Beirut 1107 2180, Lebanon
- Department of Biomaterials and Bioengineering, INSERM UMR_S 1121, University of Strasbourg, 67000 Strasbourg, France
| | - Carlos Enrique Cuevas-Suárez
- Dental Materials Laboratory, Academic Area of Dentistry, Autonomous University of Hidalgo State, San Agustín Tlaxiaca 42160, Mexico
- Correspondence: (C.E.C.-S.); (N.K.); (Y.H.); Tel.: +52-(771)-72000 (C.E.C.-S.)
| | | | - Vincenzo Tosco
- Department of Clinical Sciences and Stomatology (DISCO), Polytechnic University of Marche, 60126 Ancona, Italy
| | - Ana Josefina Monjarás-Ávila
- Dental Materials Laboratory, Academic Area of Dentistry, Autonomous University of Hidalgo State, San Agustín Tlaxiaca 42160, Mexico
| | - Massa Jabra
- Faculty of Medicine, Damascus University, Damascus 0100, Syria
| | | | - Naji Kharouf
- Department of Biomaterials and Bioengineering, INSERM UMR_S 1121, University of Strasbourg, 67000 Strasbourg, France
- Department of Endodontics and Conservative Dentistry, Faculty of Dental Medicine, University of Strasbourg, 67000 Strasbourg, France
- Correspondence: (C.E.C.-S.); (N.K.); (Y.H.); Tel.: +52-(771)-72000 (C.E.C.-S.)
| | - Davide Mancino
- Department of Biomaterials and Bioengineering, INSERM UMR_S 1121, University of Strasbourg, 67000 Strasbourg, France
- Department of Endodontics and Conservative Dentistry, Faculty of Dental Medicine, University of Strasbourg, 67000 Strasbourg, France
- Pôle de Médecine et Chirurgie Bucco-Dentaire, Hôpital Civil, Hôpitaux Universitaire de Strasbourg, 67000 Strasbourg, France
| | - Youssef Haikel
- Department of Biomaterials and Bioengineering, INSERM UMR_S 1121, University of Strasbourg, 67000 Strasbourg, France
- Department of Endodontics and Conservative Dentistry, Faculty of Dental Medicine, University of Strasbourg, 67000 Strasbourg, France
- Pôle de Médecine et Chirurgie Bucco-Dentaire, Hôpital Civil, Hôpitaux Universitaire de Strasbourg, 67000 Strasbourg, France
- Correspondence: (C.E.C.-S.); (N.K.); (Y.H.); Tel.: +52-(771)-72000 (C.E.C.-S.)
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2
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Wei Z, Rolle MW, Camesano TA. LL37 and collagen-binding domain-mediated LL37 binding with type I collagen: Quantification via QCM-D. Colloids Surf B Biointerfaces 2022; 220:112852. [PMID: 36179608 DOI: 10.1016/j.colsurfb.2022.112852] [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: 06/27/2022] [Revised: 08/28/2022] [Accepted: 09/13/2022] [Indexed: 12/29/2022]
Abstract
Antimicrobial peptide (AMP)-loaded biomaterials may represent a viable alternative for stimulating wound healing while protecting against infections. Previously, to develop an efficient delivery system for the cathelicidin antimicrobial peptide, LL37, our lab modified LL37 with a collagen-binding domain derived from collagenase (cCBD) as an anchoring unit to collagen-based wound dressings. However, a direct quantification of unmodified LL37 and cCBD-LL37 binding with collagen has not been performed. In this study, we used quartz crystal microbalance with dissipation monitoring (QCM-D), immunohistochemistry (IHC), and atomic force microscopy (AFM) to establish and characterize an adsorbed layer of type I collagen on the QCM-D sensor and quantify peptide-collagen binding. A collagen deposition protocol was successfully established by measuring concentration-dependent deposition of collagen in QCM-D, and collagen self-assembly was observed by IHC and AFM. Hydrophobicity is known to affect the behavior of collagen adsorption. Therefore, we compared the deposition of collagen on hydrophilic SiO2-coated sensors vs. hydrophobic polystyrene (PS)-coated sensors via QCM-D, and found that the hydrophobic surface yielded more collagen adsorption, which suggested that hydrophobic surfaces are preferable for collagen layer establishment. There was no significant difference between LL37 and cCBD-LL37 binding with collagen, but the cCBD-LL37 showed better retention on the collagen after washing with PBS, indicating that there is an advantage to using cCBD as an anchoring unit to collagen. Collectively, these results provide important information on cCBD-mediated AMP-binding mechanisms and establish an effective method for quantifying peptide-collagen binding.
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Affiliation(s)
- Ziqi Wei
- Department of Chemical Engineering, Worcester Polytechnic Institute, 100 Institute Road, Worcester, MA 01609, United States
| | - Marsha W Rolle
- Department of Biomedical Engineering, Worcester Polytechnic Institute, 100 Institute Road, Worcester, MA 01609, United States
| | - Terri A Camesano
- Department of Chemical Engineering, Worcester Polytechnic Institute, 100 Institute Road, Worcester, MA 01609, United States.
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3
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Dentino AR, Lee D, Dentino K, Guentsch A, Tahriri M. Inhibition of Candida albicans and Mixed Salivary Bacterial Biofilms on Antimicrobial Loaded Phosphated Poly(methyl methacrylate). Antibiotics (Basel) 2021; 10:antibiotics10040427. [PMID: 33924304 PMCID: PMC8070037 DOI: 10.3390/antibiotics10040427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 03/31/2021] [Accepted: 04/07/2021] [Indexed: 11/29/2022] Open
Abstract
Biofilms play a crucial role in the development of Candida-associated denture stomatitis. Inhibition of microbial adhesion to poly(methyl methacrylate) (PMMA) and phosphate containing PMMA has been examined in this work. C. albicans and mixed salivary microbial biofilms were compared on naked and salivary pre-conditioned PMMA surfaces in the presence or absence of antimicrobials (Cetylpyridinium chloride [CPC], KSL-W, Histatin 5 [His 5]). Polymers with varying amounts of phosphate (0–25%) were tested using four C. albicans oral isolates as well as mixed salivary bacteria and 24 h biofilms were assessed for metabolic activity and confirmed using Live/Dead staining and confocal microscopy. Biofilm metabolism was reduced as phosphate density increased (15%: p = 0.004; 25%: p = 0.001). Loading of CPC on 15% phosphated disks showed a substantial decrease (p = 0.001) in biofilm metabolism in the presence or absence of a salivary pellicle. Salivary pellicle on uncharged PMMA enhanced the antimicrobial activity of CPC only. CPC also demonstrated remarkable antimicrobial activity on mixed salivary bacterial biofilms under different conditions displaying the potent efficacy of CPC (350 µg/mL) when combined with an artificial protein pellicle (Biotene half strength).
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Affiliation(s)
- Andrew R. Dentino
- Department of Surgical Sciences, Marquette University School of Dentistry, Milwaukee, WI 53201-1881, USA; (D.L.); (K.D.); (A.G.)
- Correspondence:
| | - DongHwa Lee
- Department of Surgical Sciences, Marquette University School of Dentistry, Milwaukee, WI 53201-1881, USA; (D.L.); (K.D.); (A.G.)
| | - Kelley Dentino
- Department of Surgical Sciences, Marquette University School of Dentistry, Milwaukee, WI 53201-1881, USA; (D.L.); (K.D.); (A.G.)
| | - Arndt Guentsch
- Department of Surgical Sciences, Marquette University School of Dentistry, Milwaukee, WI 53201-1881, USA; (D.L.); (K.D.); (A.G.)
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Le PH, Nguyen DHK, Aburto-Medina A, Linklater DP, Crawford RJ, MacLaughlin S, Ivanova EP. Nanoscale Surface Roughness Influences Candida albicans Biofilm Formation. ACS APPLIED BIO MATERIALS 2020; 3:8581-8591. [PMID: 35019629 DOI: 10.1021/acsabm.0c00985] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The microbial contamination of surfaces presents a significant challenge due to the adverse effects associated with biofilm formation, particularly on implantable devices. Here, the attachment and biofilm formation of the opportunistic human pathogen, Candida albicans ATCC 10231, were studied on surfaces with decreasing magnitudes of nanoscale roughness. The nanoscale surface roughness of nonpolished titanium, polished titanium, and glass was characterized according to average surface roughness, skewness, and kurtosis. Nonpolished titanium, polished titanium, and glass possessed average surface roughness (Sa) values of 350, 20, and 2.5 nm; skewness (Sskw) values of 1.0, 4.0, and 1.0; and (Skur) values of 3.5, 16, and 4, respectively. These unique characteristics of the surface nanoarchitecture were found to play a key role in limiting C. albicans attachment and modulating the functional phenotypic changes associated with biofilm formation. Our results suggest that surfaces with a specific combination of surface topographical parameters could prevent the attachment and biofilm formation of C. albicans. After 7 days, the density of attached C. albicans cells was recorded to be 230, 70, and 220 cells mm-2 on nonpolished titanium, polished titanium, and glass surfaces, respectively. Despite achieving a very low attachment density, C. albicanscells were only observed to produce hyphae associated with biofilm formation on nonpolished titanium surfaces, possessing the highest degree of surface roughness (Sa = 350 nm). This study provides a more comprehensive picture of the impact of surface architectures on C. albicans attachment, which is beneficial for the design of antifungal surfaces.
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Affiliation(s)
- Phuc H Le
- School of Science, College of Science, Engineering and Health, RMIT University, Melbourne, Victoria 3000, Australia.,Australian Research Council Research Hub for Australian Steel Manufacturing, Wollongong, New South Wales 2500, Australia
| | - Duy H K Nguyen
- School of Science, College of Science, Engineering and Health, RMIT University, Melbourne, Victoria 3000, Australia
| | - Arturo Aburto-Medina
- School of Science, College of Science, Engineering and Health, RMIT University, Melbourne, Victoria 3000, Australia.,Australian Research Council Research Hub for Australian Steel Manufacturing, Wollongong, New South Wales 2500, Australia
| | - Denver P Linklater
- School of Science, College of Science, Engineering and Health, RMIT University, Melbourne, Victoria 3000, Australia
| | - Russell J Crawford
- School of Science, College of Science, Engineering and Health, RMIT University, Melbourne, Victoria 3000, Australia
| | | | - Elena P Ivanova
- School of Science, College of Science, Engineering and Health, RMIT University, Melbourne, Victoria 3000, Australia
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5
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Ye Z, Kobe AC, Sang T, Aparicio C. Unraveling dominant surface physicochemistry to build antimicrobial peptide coatings with supramolecular amphiphiles. NANOSCALE 2020; 12:20767-20775. [PMID: 33030163 PMCID: PMC7581556 DOI: 10.1039/d0nr04526h] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
With the increasing threat from antibiotic-resistant bacteria, surface modification with antimicrobial peptides (AMP) has been promisingly explored for preventing bacterial infections. Little is known about the critical factors that govern AMP-surface interactions to obtain stable and active coatings. Here, we systematically monitored the adsorption of a designer amphipathic AMP, GL13K, on model surfaces. Self-assembly of the GL13K peptides formed supramolecular amphiphiles that highly adsorbed on negatively charged, polar hydroxyapatite-coated sensors. We further tuned surface charge and/or surface polarity with self-assembled monolayers (SAMs) on Au sensors and studied their interactions with adsorbed GL13K. We determined that the surface polarity of the SAM-coated sensors instead of their surface charge was the dominant factor governing AMP/substrate interactions via hydrogen bonding. Our findings will instruct the universal design of efficient self-assembled AMP coatings on biomaterials, biomedical devices and/or natural tissues.
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Affiliation(s)
- Zhou Ye
- MDRCBB, Minnesota Dental Research Center for Biomaterials and Biomechanics, University of Minnesota, Minneapolis, Minnesota 55455, USA.
| | - Alexandra C Kobe
- MDRCBB, Minnesota Dental Research Center for Biomaterials and Biomechanics, University of Minnesota, Minneapolis, Minnesota 55455, USA.
| | - Ting Sang
- MDRCBB, Minnesota Dental Research Center for Biomaterials and Biomechanics, University of Minnesota, Minneapolis, Minnesota 55455, USA. and The Affiliated Stomatological Hospital of Nanchang University & The Key Laboratory of Oral Biomedicine, Nanchang, Jiangxi Province 330006, China
| | - Conrado Aparicio
- MDRCBB, Minnesota Dental Research Center for Biomaterials and Biomechanics, University of Minnesota, Minneapolis, Minnesota 55455, USA.
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6
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Antimicrobial Prosthetic Surfaces in the Oral Cavity-A Perspective on Creative Approaches. Microorganisms 2020; 8:microorganisms8081247. [PMID: 32824437 PMCID: PMC7463865 DOI: 10.3390/microorganisms8081247] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Revised: 08/06/2020] [Accepted: 08/10/2020] [Indexed: 02/07/2023] Open
Abstract
Replacement of missing teeth is an essential component of comprehensive dental care for patients suffering of edentulism. A popular option is implant-supported restorations. However, implant surfaces can become colonized with polymicrobial biofilms containing Candida species that may compromise peri-implant health. To prevent this, implant components may be treated with a variety of coatings to create surfaces that either repel the attachment of viable microorganisms or kill microorganisms on contact. These coatings may consist of nanoparticles of pure elements (more commonly silver, copper, and zinc), sanitizing agents and disinfectants (quaternary ammonium ions and chlorhexidine), antibiotics (cefalotin, vancomycin, and gentamicin), or antimicrobial peptides (AMPs). AMPs in bioactive coatings have a number of advantages. They elicit a protective action against pathogens, inhibit the formation of biofilms, are less toxic to host tissues, and do not prompt inflammatory responses. Furthermore, many of these coatings may involve unique delivery systems to direct their antimicrobial capacity against pathogens, but not commensals. Coatings may also contain multiple antimicrobial substances to widen antimicrobial activity across multiple microbial species. Here, we compiled relevant information about a variety of creative approaches used to generate antimicrobial prosthetic surfaces in the oral cavity with the purpose of facilitating implant integration and peri-implant tissue health.
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7
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Fu J, Qiao Y, Song H, Xu Z, Tu J, Ba L, Lu Z. Advanced transferring of large-area freestanding graphene films by using fullerenes. NANOTECHNOLOGY 2019; 30:26LT01. [PMID: 30836332 DOI: 10.1088/1361-6528/ab0cab] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Freestanding graphene films are desired to be widely applied in biosensor fabrication due to their distinctive physical properties and improved performance. Chemical vapor deposition has been developed to efficiently fabricate large-area graphene. However, some of the fabricated graphene films might break or be contaminated in the current transferring step using polymers. A stable and high-quality transfer method is needed. Herein, we report on an advanced transfer method of large-area graphene film which uses fullerene as a supporting substrate. Unlike polymers, which are commonly eliminated by being dissolved in an organic solution, fullerene can be easily removed by evaporation in a vacuum because it has a different heat stability to graphene. By using the improved transferring method, the percentage of integrated freestanding films after transferring was increased from 60.7% to 93.4%. The vacuum is beneficial in terms of keeping the brittle freestanding films intact. Graphene films transferred using fullerene showed an advanced flatness and a simplicial elementary composition in comparison to those transferred using polymers. Even through there is trace residue, this stable allotrope of graphene is considered to have almost no impact on biomolecule sensing. These advantages make the fullerene transferring method an attractive candidate for fabricating large-area freestanding graphene films, especially for using in the field of biochemistry analysis and biosensors.
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Affiliation(s)
- Jiye Fu
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, People's Republic of China
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8
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QCM-D characterization of time-dependence of bacterial adhesion. ACTA ACUST UNITED AC 2019; 5:100024. [PMID: 32743140 PMCID: PMC7389184 DOI: 10.1016/j.tcsw.2019.100024] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Revised: 01/29/2019] [Accepted: 03/29/2019] [Indexed: 12/22/2022]
Abstract
Quartz crystal microbalance with dissipation monitoring (QCM-D) is becoming an increasingly popular technique that can be employed as part of experimental and modeling investigations of bacterial adhesion. The usefulness of QCM-D derives from this technique's ability to probe binding and interactions under dynamic conditions, in real time. Bacterial adhesion is an important first step in the formation of biofilms, the control of which is relevant to industries that include shipping, water purification, packaging, and biomedical devices. However, many questions remain unanswered in the bacterial adhesion process, despite extensive research in this area. With QCM-D, multiple variables affecting bacterial adhesion can be studied, including the roles of substrate composition, chemical modification, solution ionic strength, environmental temperature, shear conditions, and time. Recent studies demonstrate the utility of QCM-D in developing new bacterial adhesion models and studying different stages of biofilm formation. We provide a review of how QCM-D has been used to study bacterial adhesion at stages ranging from the first step of bacterial adhesion to mature biofilms, and how QCM-D studies are being used to promote the development of solutions to biofilm formation.
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9
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Wen J, Yeh CK, Sun Y. Salivary polypeptide/hyaluronic acid multilayer coatings act as "fungal repellents" and prevent biofilm formation on biomaterials. J Mater Chem B 2018; 6:1452-1457. [PMID: 32254209 DOI: 10.1039/c7tb02592k] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Candida-associated denture stomatitis (CADS) is a common, recurring clinical complication in denture wearers that can lead to serious oral and systemic health problems. Current management strategies are not satisfactory due to their short-acting and ineffective therapeutic effects. Here, we describe a new fungal biofilm controlling strategy using the polyelectrolyte layer-by-layer (LBL) self-assembly technology on denture materials. Conventional poly(methyl methacrylate) (PMMA) denture material discs were functionalized with negatively charged poly(methacrylic acid) (PMAA) via plasma-initiated surface grafting, followed by repetitive alternating coating with the salivary antimicrobial polypeptide histatin 5 (H-5; cationic polymer) and hyaluronic acid (HA; anionic polymer). On the other hand, the H-5/HA LBL coatings (i.e., the outermost layer was H-5) inhibited fungal attachment/adhesion, significantly reduced fungal biofilm formation, and showed synergistic effects with the antifungal drug miconazole. LBL surface hydrophilicity was not the key mechanism in controlling Candida biofilm formation. The current approach demonstrates the utility of a new design principle for fabricating anticandidal denture materials, as well as potentially other related medical devices, for controlling fungal biofilm formation and combating insidious infections.
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Affiliation(s)
- Jianchuan Wen
- Department of Chemistry, University of Massachusetts Lowell, 1 University Avenue, Lowell, Massachusetts 01854, USA.
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10
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Moffa EB, Mussi MCM, Xiao Y, Garrido SS, Machado MAAM, Giampaolo ET, Siqueira WL. Histatin 5 inhibits adhesion of C. albicans to Reconstructed Human Oral Epithelium. Front Microbiol 2015; 6:885. [PMID: 26379655 PMCID: PMC4551819 DOI: 10.3389/fmicb.2015.00885] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2015] [Accepted: 08/12/2015] [Indexed: 11/30/2022] Open
Abstract
Candida albicans is the most pathogenic fungal species, commonly colonizing on human mucosal surfaces. As a polymorphic species, C. albicans is capable of switching between yeast and hyphal forms, causing an array of mucosal and disseminated infections with high mortality. While the yeast form is most commonly associated with systemic disease, the hyphae are more adept at adhering to and penetrating host tissue and are therefore frequently observed in mucosal fungal infections, most commonly oral candidiasis. The formation of a saliva-derived protein pellicle on the mucosa surface can provide protection against C. albicans on oral epithelial cells, and narrow information is available on the mucosal pellicle composition. Histatins are one of the most abundant salivary proteins and presents antifungal and antibacterial activities against many species of the oral microbiota, however, its presence has never been studied in oral mucosa pellicle. The objective of this study was to evaluate the potential of histatin 5 to protect the Human Oral Epithelium against C. albicans adhesion. Human Oral Epithelial Tissues (HOET) were incubated with PBS containing histatin 5 for 2 h, followed by incubation with C. albicans for 1 h at 37°C. The tissues were then washed several times in PBS, transferred to fresh RPMI and incubated for 16 h at 37°C at 5% CO2. HOET were then prepared for histopathological analysis using light microscopy. In addition, the TUNEL assay was employed to evaluate the apoptosis of epithelial cells using fluorescent microscopy. HOET pre-incubated with histatin 5 showed a lower rate of C. albicans growth and cell apoptosis when compared to the control groups (HOET alone and HOET incubated with C. albicans). The data suggest that the coating with histatin 5 is able to reduce C. albicans colonization on epithelial cell surfaces and also protect the basal cell layers from undergoing apoptosis.
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Affiliation(s)
- Eduardo B Moffa
- The University of Western Ontario - Department of Biochemistry and Schulich Dentistry, Schulich School of Medicine and Dentistry, London, ON Canada ; Department of Dental Materials and Prosthodontics, Araraquara Dental School - Universidade Estadual Paulista, São Paulo Brazil
| | - Maria C M Mussi
- The University of Western Ontario - Department of Biochemistry and Schulich Dentistry, Schulich School of Medicine and Dentistry, London, ON Canada ; School of Dentistry, University of São Paulo, São Paulo Brazil
| | - Yizhi Xiao
- The University of Western Ontario - Department of Biochemistry and Schulich Dentistry, Schulich School of Medicine and Dentistry, London, ON Canada
| | - Saulo S Garrido
- Department of Biochemistry and Technological Chemistry - Institute of Chemistry - Universidade Estadual Paulista, São Paulo Brazil
| | - Maria A A M Machado
- Department of Pediatric Dentistry, Orthodontics and Public Health, Bauru Dental School, University of São Paulo, Bauru Brazil
| | - Eunice T Giampaolo
- Department of Dental Materials and Prosthodontics, Araraquara Dental School - Universidade Estadual Paulista, São Paulo Brazil
| | - Walter L Siqueira
- The University of Western Ontario - Department of Biochemistry and Schulich Dentistry, Schulich School of Medicine and Dentistry, London, ON Canada
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Kim WJ, Choi JB, Kim S, Kim AR, Yoo DJ. Preparation and Characterization of a Triple Layered Au-PMMA-PbSe Hybrid Nanocomposite: Manipulation of PMMA Spacer Layer by Oxygen Plasma Etching. B KOREAN CHEM SOC 2015. [DOI: 10.1002/bkcs.10379] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Wan-Joong Kim
- Biomed Research Team; Electronics and Telecommunications Research Institute; Daejeon 305-700 Republic of Korea
| | - Jae Bong Choi
- Department of Mechanical and Systems Engineering; Hansung University; Seoul 136-792 Korea
| | - Sanghee Kim
- Department of Mechanical and Systems Engineering; Hansung University; Seoul 136-792 Korea
| | - Ae Rhan Kim
- Department of Chemistry; Chonbuk National University; Jeollabuk-do 561-756 Korea
| | - Dong Jin Yoo
- Department of Energy Storage and Conversion Engineering, Graduate School, Hydrogen and Fuel Cell Research Center; Chonbuk National University; Jeollabuk-do 561-756 Korea
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12
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Nijhuis AW, Takemoto S, Nejadnik MR, Li Y, Yang X, Ossipov DA, Hilborn J, Mikos AG, Yoshinari M, Jansen JA, Leeuwenburgh SC. Rapid Screening of Mineralization Capacity of Biomaterials by Means of Quantification of Enzymatically Deposited Calcium Phosphate. Tissue Eng Part C Methods 2014; 20:838-50. [DOI: 10.1089/ten.tec.2013.0334] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Affiliation(s)
- Arnold W.G. Nijhuis
- Department of Biomaterials, Radboud University Medical Centre, Nijmegen, The Netherlands
| | - Shinji Takemoto
- Department of Dental Materials Science, Tokyo Dental College, Tokyo, Japan
| | - M. Reza Nejadnik
- Department of Biomaterials, Radboud University Medical Centre, Nijmegen, The Netherlands
| | - Yubao Li
- Research Center for Nano-Biomaterials, Analytical and Testing Center, Sichuan University, Chengdu, P.R. China
| | - Xia Yang
- Angstrom Laboratory, Department of Materials Chemistry, Uppsala University, Uppsala, Sweden
| | - Dmitri A. Ossipov
- Angstrom Laboratory, Department of Materials Chemistry, Uppsala University, Uppsala, Sweden
| | - Jons Hilborn
- Angstrom Laboratory, Department of Materials Chemistry, Uppsala University, Uppsala, Sweden
| | | | - Masao Yoshinari
- Department of Dental Materials Science, Tokyo Dental College, Tokyo, Japan
- Oral Health Science Center, Tokyo Dental College, Tokyo, Japan
| | - John A. Jansen
- Department of Biomaterials, Radboud University Medical Centre, Nijmegen, The Netherlands
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13
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Sakata S, Inoue Y, Ishihara K. Quantitative evaluation of interaction force between functional groups in protein and polymer brush surfaces. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:2745-2751. [PMID: 24564418 DOI: 10.1021/la404981k] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
To understand interactions between polymer surfaces and different functional groups in proteins, interaction forces were quantitatively evaluated by force-versus-distance curve measurements using atomic force microscopy with a functional-group-functionalized cantilever. Various polymer brush surfaces were systematically prepared by surface-initiated atom transfer radical polymerization as well-defined model surfaces to understand protein adsorption behavior. The polymer brush layers consisted of phosphorylcholine groups (zwitterionic/hydrophilic), trimethylammonium groups (cationic/hydrophilic), sulfonate groups (anionic/hydrophilic), hydroxyl groups (nonionic/hydrophilic), and n-butyl groups (nonionic/hydrophobic) in their side chains. The interaction forces between these polymer brush surfaces and different functional groups (carboxyl groups, amino groups, and methyl groups, which are typical functional groups existing in proteins) were quantitatively evaluated by force-versus-distance curve measurements using atomic force microscopy with a functional-group-functionalized cantilever. Furthermore, the amount of adsorbed protein on the polymer brush surfaces was quantified by surface plasmon resonance using albumin with a negative net charge and lysozyme with a positive net charge under physiological conditions. The amount of proteins adsorbed on the polymer brush surfaces corresponded to the interaction forces generated between the functional groups on the cantilever and the polymer brush surfaces. The weakest interaction force and least amount of protein adsorbed were observed in the case of the polymer brush surface with phosphorylcholine groups in the side chain. On the other hand, positive and negative surfaces generated strong forces against the oppositely charged functional groups. In addition, they showed significant adsorption with albumin and lysozyme, respectively. These results indicated that the interaction force at the functional group level might be a suitable parameter for understanding protein adsorption.
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Affiliation(s)
- Sho Sakata
- Department of Materials Engineering, ‡Department of Bioengineering, School of Engineering, The University of Tokyo , 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
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Polymeric systems of antimicrobial peptides--strategies and potential applications. Molecules 2013; 18:14122-37. [PMID: 24241155 PMCID: PMC6269711 DOI: 10.3390/molecules181114122] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2013] [Revised: 10/31/2013] [Accepted: 11/05/2013] [Indexed: 11/24/2022] Open
Abstract
The past decade has seen growing interest in the investigation of peptides with antimicrobial activity (AMPs). One approach utilized in infection control is incorporation of antimicrobial agents conjugated with the polymers. This review presents the recent developments on polymeric AMP carriers and their potential applications in the biomedical and pharmaceutical fields.
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Denture polymers with antimicrobial properties: a review of the development and current status of anionic poly(methyl methacrylate) polymers. Future Med Chem 2013; 5:1635-45. [DOI: 10.4155/fmc.13.145] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
The denture base polymer poly(methyl methacrylate) (PMMA) is highly susceptible for microbial colonization resulting in denture-associated infections. Over the years research has focused on ways to modify the PMMA properties via surface and chemical modification. These studies led to the development of new denture polymers that include anionic PMMA polymers. The new anionic polymers presented the possibility of compromising the physical and mechanical properties required for denture fabrication. These obstacles were overcome by generating anionic PMMA polymers with physical and mechanical properties suitable for denture fabrication. A large body of literature is available on the anionic PMMA polymers, their antimicrobial properties and their potential for the commercial and clinical application as dental biomaterials. This article describes a review and evaluation of the anionic PMMA polymers for their suitability to serve as denture base polymers, their antimicrobial properties, their efficacy to prevent denture-induced infection and their safety in the oral environment.
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Villar CC, Lin AL, Cao Z, Zhao XR, Wu LA, Chen S, Sun Y, Yeh CK. Anticandidal activity and biocompatibility of a rechargeable antifungal denture material. Oral Dis 2012; 19:287-95. [PMID: 22957799 DOI: 10.1111/odi.12000] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2012] [Revised: 06/13/2012] [Accepted: 07/03/2012] [Indexed: 01/09/2023]
Abstract
OBJECTIVES Candida-associated denture stomatitis is a recurrent and debilitating oral mucosal disease. Development of anticandidal denture materials represents a promising strategy to manage this condition. We have previously shown that miconazole incorporated in methacrylic acid (MAA) copolymerized diurethane dimethacrylate (UDMA) denture materials has long-term anticandidal activity. In this study, we examined the ability of culture medium conditioned with drug-free- or miconazole-MAA-UDMA discs to prevent Candida infection in an in vitro oral epithelial cell/Candida albicans coculture system. MATERIALS AND METHODS Candida albicans (C. albicans)-induced OKF6/TERT-2 cell damage was quantified by the release of lactate dehydrogenase from epithelial cells, cytokine production was quantified using protein cytokine arrays, and the expression of C. albicans genes was measured by RT-qPCR. RESULTS Candida albicans had limited growth with altered expression levels of secreted aspartyl proteinase-2 and -5 in culture medium conditioned by miconazole-MAA-UDMA discs. Significantly, the ability of C. albicans to induce oral epithelial cell damage and trigger epithelial proinflammatory cytokine production was also inhibited by miconazole disc conditioned media. CONCLUSION Miconazole released from MAA-UDMA denture materials effectively prevents the development of candidal infection in an in vitro oral epithelial system. Further characterization of this drug-rechargeable denture material is warranted.
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Affiliation(s)
- C C Villar
- Department of Periodontics, The University of Texas Health Science Center, San Antonio, TX, USA
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Miura T, Tanabe K, Yoshinari M. Ca (II)-EDTA shows antimicrobial activity against periodontopathic bacteria. ACTA ACUST UNITED AC 2012. [DOI: 10.4236/jbise.2012.51002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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19
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Lotz A, Heller M, Dohm N, Cierniak P, Bender K, Jansen B, Förch R. Antimicrobial efficacy and optimized cell adhesion from defined plasma polymerised multilayer structures involving zinc acetylacetonate and allylamine. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm30344b] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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20
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Yoshinari M, Matsuzaka K, Inoue T. Surface modification by cold-plasma technique for dental implants—Bio-functionalization with binding pharmaceuticals. JAPANESE DENTAL SCIENCE REVIEW 2011. [DOI: 10.1016/j.jdsr.2011.03.001] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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21
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Brogden NK, Brogden KA. Will new generations of modified antimicrobial peptides improve their potential as pharmaceuticals? Int J Antimicrob Agents 2011; 38:217-25. [PMID: 21733662 DOI: 10.1016/j.ijantimicag.2011.05.004] [Citation(s) in RCA: 109] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2011] [Accepted: 05/09/2011] [Indexed: 12/20/2022]
Abstract
The concept of antimicrobial peptides (AMPs) as potent pharmaceuticals is firmly established in the literature, and most research articles on this topic conclude by stating that AMPs represent promising therapeutic agents against bacterial and fungal pathogens. Indeed, early research in this field showed that AMPs were diverse in nature, had high activities with low minimal inhibitory concentrations, had broad spectrums of activity against bacterial, fungal and viral pathogens, and could easily be manipulated to alter their specificities, reduce their cytotoxicities and increase their antimicrobial activities. Unfortunately, commercial development of these peptides, for even the simplest of applications, has been very limited. With some peptides there are obstacles with their manufacture, in vivo efficacy and in vivo retention. More recently, the focus has shifted. Contemporary research now uses a more sophisticated approach to develop AMPs that surmount many of these prior obstacles. AMP mimetics, hybrid AMPs, AMP congeners, cyclotides and stabilised AMPs, AMP conjugates and immobilised AMPs have all emerged with selective or 'targeted' antimicrobial activities, improved retention, or unique abilities that allow them to bind to medical or industrial surfaces. These groups of new peptides have creative medical and industrial application potentials to treat antibiotic-resistant bacterial infections and septic shock, to preserve food or to sanitise surfaces both in vitro and in vivo.
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Affiliation(s)
- Nicole K Brogden
- Department of Pharmaceutical Sciences, University of Kentucky, Lexington, KY 40536, USA
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22
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Becker B, Cooper MA. A survey of the 2006-2009 quartz crystal microbalance biosensor literature. J Mol Recognit 2011; 24:754-87. [DOI: 10.1002/jmr.1117] [Citation(s) in RCA: 138] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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23
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Cathelicidins—Therapeutic antimicrobial and antitumor host defense peptides for oral diseases. JAPANESE DENTAL SCIENCE REVIEW 2011. [DOI: 10.1016/j.jdsr.2010.11.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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Onaizi SA, Leong SS. Tethering antimicrobial peptides: Current status and potential challenges. Biotechnol Adv 2011; 29:67-74. [DOI: 10.1016/j.biotechadv.2010.08.012] [Citation(s) in RCA: 226] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2010] [Revised: 08/12/2010] [Accepted: 08/22/2010] [Indexed: 12/14/2022]
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Cao Z, Sun X, Yeh CK, Sun Y. Rechargeable infection-responsive antifungal denture materials. J Dent Res 2010; 89:1517-21. [PMID: 20940361 PMCID: PMC3318022 DOI: 10.1177/0022034510379604] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2010] [Revised: 06/10/2010] [Accepted: 06/17/2010] [Indexed: 11/16/2022] Open
Abstract
Candida-associated denture stomatitis (CADS) is a significant clinical concern. We developed rechargeable infection-responsive antifungal denture materials for potentially managing the disease. Polymethacrylic acid (PMAA) was covalently bound onto diurethane dimethacrylate denture resins in the curing step. The PMAA resins bound cationic antifungal drugs such as miconazole and chlorhexidine digluconate (CG) through ionic interactions. The anticandidal activities of the drug-containing PMAA-resin discs were sustained for a prolonged period of time (weeks and months). Drug release was much faster at acidic conditions (pH 5) than at pH 7. Drugs bound to the denture materials could be "washed out" by treatment with EDTA, and the drug-depleted resins could be recharged with the same or a different class of anticandidal drugs. These results suggest clinical potential of the newly developed antifungal denture materials in the management of CADS and other infectious conditions.
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Affiliation(s)
- Z. Cao
- Biomedical Engineering Program, University of South Dakota, 4800 N Career Ave., Sioux Falls, SD 57107, USA
| | - X. Sun
- Biomedical Engineering Program, University of South Dakota, 4800 N Career Ave., Sioux Falls, SD 57107, USA
| | - C.-K. Yeh
- Department of Dental Diagnostic Science, University of Texas Health Science Center at San Antonio, and Geriatric Research, Education and Clinical Center, Audie L. Murphy Division, South Texas Veterans Health Care System, San Antonio, TX 78229–4404, USA
| | - Y. Sun
- Biomedical Engineering Program, University of South Dakota, 4800 N Career Ave., Sioux Falls, SD 57107, USA
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Nett JE, Marchillo K, Spiegel CA, Andes DR. Development and validation of an in vivo Candida albicans biofilm denture model. Infect Immun 2010; 78:3650-9. [PMID: 20605982 PMCID: PMC2937450 DOI: 10.1128/iai.00480-10] [Citation(s) in RCA: 119] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2010] [Revised: 06/16/2010] [Accepted: 06/25/2010] [Indexed: 11/20/2022] Open
Abstract
The most common form of oral candidiasis, denture-associated stomatitis, involves biofilm growth on an oral prosthetic surface. Cells in this unique environment are equipped to withstand host defenses and survive antifungal therapy. Studies of the biofilm process on dentures have primarily been limited to in vitro models. We developed a rodent acrylic denture model and characterized the Candida albicans and mixed oral bacterial flora biofilm formation, architecture, and drug resistance in vivo, using time course quantitative culture experiments, confocal microscopy, scanning electron microscopy, and antifungal susceptibility assays. We also examined the utility of the model for measurement of C. albicans gene expression and tested the impact of a specific gene product (Bcr1p) on biofilm formation. Finally, we assessed the mucosal host response to the denture biofilm and found the mucosal histopathology to be consistent with that of acute human denture stomatitis, demonstrating fungal invasion and neutrophil infiltration. This current oral denture model mimics human denture stomatitis and should be useful for testing the impact of gene disruption on biofilm formation, studying the impact of anti-infectives, examining the biology of mixed Candida-oral bacterial flora biofilm infections, and characterizing the host immunologic response to this disease process.
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Affiliation(s)
- Jeniel E. Nett
- Departments of Medicine, Medical Microbiology and Immunology, Pathology and Laboratory Medicine, University of Wisconsin, Madison, Wisconsin
| | - Karen Marchillo
- Departments of Medicine, Medical Microbiology and Immunology, Pathology and Laboratory Medicine, University of Wisconsin, Madison, Wisconsin
| | - Carol A. Spiegel
- Departments of Medicine, Medical Microbiology and Immunology, Pathology and Laboratory Medicine, University of Wisconsin, Madison, Wisconsin
| | - David R. Andes
- Departments of Medicine, Medical Microbiology and Immunology, Pathology and Laboratory Medicine, University of Wisconsin, Madison, Wisconsin
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Susceptibility of Candida biofilms to histatin 5 and fluconazole. Antonie van Leeuwenhoek 2010; 97:413-7. [DOI: 10.1007/s10482-010-9417-5] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2009] [Accepted: 01/21/2010] [Indexed: 10/19/2022]
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Yoshinari M, Kato T, Matsuzaka K, Hayakawa T, Shiba K. Prevention of biofilm formation on titanium surfaces modified with conjugated molecules comprised of antimicrobial and titanium-binding peptides. BIOFOULING 2010; 26:103-110. [PMID: 20390560 DOI: 10.1080/08927010903216572] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Specific binding of antimicrobial peptides to titanium (Ti) surfaces may serve to prevent biofilm formation, leading to a reduction in peri-implantitis. This study evaluated the binding behavior of conjugated molecules consisting of antimicrobial and hexapeptidic Ti-binding peptides (minTBP-1) using the quartz crystal microbalance (QCM-D) technique, and investigated the effect of modification of Ti surfaces with these peptides on the bioactivity of Porphyromonas gingivalis. Four kinds of peptide were prepared: histatin 5 (DSHAKRHHGYKRKFHEKHHSHRGY), minTBP-1 + histatin 5 (RKLPDAPDSHAKRHHGYKRKFHEKHHSHRGY), lactoferricin (FQWQRNMRKVR), and minTBP-1 + lactoferricin (RKLPDAPGGFQWQRNMRKVR). The QCM-D analysis demonstrated that significantly larger increases in peptide adsorption were observed in the conjugated peptides than in antimicrobial peptides alone. In addition, ATP activity in P. gingivalis in peptide-modified specimens significantly decreased compared to that in the Ti control. These results indicate that surface modification with conjugated molecules consisting of antimicrobial and Ti-binding peptides is a promising method for reduction of biofilm formation on Ti surfaces.
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Affiliation(s)
- Masao Yoshinari
- Division of Oral Implants Research and HRC7, Oral Health Science Center, Tokyo Dental College, Mihama-ku, Chiba, Japan.
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Wei J, Igarashi T, Okumori N, Igarashi T, Maetani T, Liu B, Yoshinari M. Influence of surface wettability on competitive protein adsorption and initial attachment of osteoblasts. Biomed Mater 2009; 4:045002. [DOI: 10.1088/1748-6041/4/4/045002] [Citation(s) in RCA: 354] [Impact Index Per Article: 23.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Pusateri CR, Monaco EA, Edgerton M. Sensitivity of Candida albicans biofilm cells grown on denture acrylic to antifungal proteins and chlorhexidine. Arch Oral Biol 2009; 54:588-94. [PMID: 19249746 DOI: 10.1016/j.archoralbio.2009.01.016] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2008] [Revised: 01/16/2009] [Accepted: 01/24/2009] [Indexed: 12/13/2022]
Abstract
OBJECTIVES Candida albicans cells form biofilms on polymeric surfaces of dentures and other prostheses introduced into the oral cavity. Many biofilm microorganisms exhibit resistance to antimicrobial agents; C. albicans cells may also develop resistance to naturally occurring antifungal peptides in human saliva including histatins (Hsts) and defensins (hBDs). Therefore, we evaluated Hst 5 activity on C. albicans biofilm cells compared to planktonic cells and measured whether surface treatment of denture acrylic with Hst 5, hBD-3, or chlorhexidine gluconate could inhibit in vitro biofilm development. METHODS Acrylic disks were preconditioned with 500 microl saliva for 30 min, and inoculated with C. albicans cells (10(6)cells/ml) for 1h, at 37 degrees C. Non-adherent cells were removed by washing and disks and were incubated in YPD growth medium for 24, 48, and 72 h at 37 degrees C. Candidacidal assays were performed on 48-h-biofilms and on planktonically grown cells using Hst 5 (15.5, 31.25, and 62 microM). Cell adhesion was compared on disks pre-coated with 0.12% chlorhexidine gluconate, 50 microM Hst 5, or 0.6 microM hBD-3 after 24, 48, and 72 h growth. RESULTS No significant difference was observed in sensitivity to Hst 5 of biofilm cells compared to planktonic cells (p>0.05). Pre-coating disks with hBD-3 did not inhibit biofilm development; however, Hst 5 significantly inhibited biofilm development at 72 h, while 0.12% chlorhexidine significantly inhibited biofilm development at all time intervals (p<0.05). CONCLUSIONS C. albicans biofilm cells grown on denture acrylic are sensitive to killing by Hst 5. Surface coating acrylic with chlorhexidine or Hst 5 effectively inhibits biofilm growth and has potential therapeutic application.
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Affiliation(s)
- Christopher R Pusateri
- Department of Restorative Dentistry, School of Dental Medicine, State University of New York at Buffalo, Buffalo, NY 14214, USA
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NEZU T, MASUYAMA T, SASAKI K, SAITOH S, TAIRA M, ARAKI Y. Effect of pH and Addition of Salt on the Adsorption Behavior of Lysozyme on Gold, Silica, and Titania Surfaces Observed by Quartz Crystal Microbalance with Dissipation Monitoring. Dent Mater J 2008; 27:573-80. [DOI: 10.4012/dmj.27.573] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Zaiou M. Multifunctional antimicrobial peptides: therapeutic targets in several human diseases. J Mol Med (Berl) 2007; 85:317-29. [PMID: 17216206 DOI: 10.1007/s00109-006-0143-4] [Citation(s) in RCA: 153] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2006] [Revised: 10/10/2006] [Accepted: 11/10/2006] [Indexed: 12/28/2022]
Abstract
Antimicrobial peptides have emerged as promising agents against antibiotic-resistant pathogens. They represent essential components of the innate immunity and permit humans to resist infection by microbes. These gene-encoded peptides are found mainly in phagocytes and epithelial cells, showing a direct activity against a wide range of microorganisms. Their role has now broadened from that of simply endogenous antibiotics to multifunctional mediators, and their antimicrobial activity is probably not the only primary function. Although antimicrobial peptide deficiency, dysregulation, or overproduction is not known to be a direct cause of any single human disease, numerous studies have now provided compelling evidence for their involvement in the complex network of immune responses and inflammatory diseases, thereby influencing diverse processes including cytokine release, chemotaxis, angiogenesis, wound repair, and adaptive immune induction. The purpose of this review is to highlight recent literature, showing that antimicrobial peptides are associated with several human conditions including infectious and inflammatory diseases, and to discuss current clinical development of peptide-based therapeutics for future use.
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Affiliation(s)
- Mohamed Zaiou
- INSERM 525 E4, Faculté de Pharmacie, Université Henri Poincaré Nancy I, 30 Rue Lionnois, 54000, Nancy, France.
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Wei J, Yoshinari M, Takemoto S, Hattori M, Kawada E, Liu B, Oda Y. Adhesion of mouse fibroblasts on hexamethyldisiloxane surfaces with wide range of wettability. J Biomed Mater Res B Appl Biomater 2007; 81:66-75. [PMID: 16924616 DOI: 10.1002/jbm.b.30638] [Citation(s) in RCA: 143] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Surface wettability is an important physicochemical property of biomaterials, and it would be more helpful for understanding this property if a wide range of wettability are employed. This study focused on the effect of surface wettability on fibroblast adhesion over a wide range of wettability using a single material without changing surface topography. Plasma polymerization with hexamethyldisiloxane followed by oxygen (O2)-plasma treatment was employed to modify the surfaces. The water contact angle of sample surfaces varied from 106 degrees (hydrophobicity) to almost 0 degrees (super-hydrophilicity). O2 functional groups were introduced on polymer surfaces during O2-plasma treatment. The cell attachment study confirmed that the more hydrophilic the surface, the more fibroblasts adhered in the initial stage that includes super-hydrophilic surfaces. Cells spread much more widely on the hydrophilic surfaces than on the hydrophobic surfaces. There was no significant difference in fibroblast proliferation, but cell spreading was much greater on the hydrophilic surfaces. The fibronectin adsorbed much more on a hydrophilic surface while albumin dominated on a hydrophobic surface in a competing mode. These findings suggest the importance of the surface wettability of biomaterials on initial cell attachment and spreading. The degree of wettability should be taken into account when a new biomaterial is to be employed.
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Affiliation(s)
- Jianhua Wei
- Department of Dental Materials Science and Oral Health Science Center, Tokyo Dental College, 1-2-2 Masago, Chiba 261-8502, Japan
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