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Nie L, Li Y, Liu Y, Shi L, Chen H. Recent Applications of Contact Lenses for Bacterial Corneal Keratitis Therapeutics: A Review. Pharmaceutics 2022; 14:2635. [PMID: 36559128 PMCID: PMC9786638 DOI: 10.3390/pharmaceutics14122635] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Revised: 11/23/2022] [Accepted: 11/25/2022] [Indexed: 11/30/2022] Open
Abstract
Corneal keratitis is a common but severe infectious disease; without immediate and efficient treatment, it can lead to vision loss within a few days. With the development of antibiotic resistance, novel approaches have been developed to combat corneal keratitis. Contact lenses were initially developed to correct vision. Although silicon hydrogel-based contact lenses protect the cornea from hypoxic stress from overnight wear, wearing contact lenses was reported as an essential cause of corneal keratitis. With the development of technology, contact lenses are integrated with advanced functions, and functionalized contact lenses are used for killing bacteria and preventing infectious corneal keratitis. In this review, we aim to examine the current applications of contact lenses for anti-corneal keratitis.
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Affiliation(s)
- Linyan Nie
- Department of Ophthalmology, The People’s Hospital of Yuhuan, Yuhuan 317600, China
- Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health), Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou 325001, China
| | - Yuanfeng Li
- Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health), Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou 325001, China
| | - Yong Liu
- Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health), Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou 325001, China
| | - Linqi Shi
- Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health), Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou 325001, China
| | - Huiyun Chen
- Department of Ophthalmology, The People’s Hospital of Yuhuan, Yuhuan 317600, China
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Kazemi Ashtiani M, Zandi M, Shokrollahi P, Ehsani M, Baharvand H. Chitosan surface modified hydrogel as a therapeutic contact lens. POLYM ADVAN TECHNOL 2019. [DOI: 10.1002/pat.4810] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
| | - Mojgan Zandi
- Biomaterials DepartmentIran Polymer and Petrochemical Institute Tehran Iran
| | - Parvin Shokrollahi
- Biomaterials DepartmentIran Polymer and Petrochemical Institute Tehran Iran
| | - Morteza Ehsani
- Biomaterials DepartmentIran Polymer and Petrochemical Institute Tehran Iran
| | - Hossein Baharvand
- Department of Cell Engineering at the Cell Science Research CenterRoyan Institute for Stem Cell Biology and Technology, ACECR Tehran Iran
- Department of Developmental BiologyUniversity of Science and Culture, ACECR Tehran Iran
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Kazemi Ashtiani M, Zandi M, Shokrollahi P, Ehsani M, Baharvand H. Surface modification of poly(2-hydroxyethyl methacrylate) hydrogel for contact lens application. POLYM ADVAN TECHNOL 2018. [DOI: 10.1002/pat.4233] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
| | - Mojgan Zandi
- Biomaterials Department; Iran Polymer and Petrochemical Institute; Tehran Iran
| | - Parvin Shokrollahi
- Biomaterials Department; Iran Polymer and Petrochemical Institute; Tehran Iran
| | - Morteza Ehsani
- Biomaterials Department; Iran Polymer and Petrochemical Institute; Tehran Iran
| | - Hossein Baharvand
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology; ACECR; Tehran Iran
- Department of Developmental Biology; University of Science and Culture; Tehran Iran
- Department of Cell Engineering, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology; ACECR; Tehran Iran
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Zhang W, Li G, Lin Y, Wang L, Wu S. Preparation and characterization of protein-resistant hydrogels for soft contact lens applications via radical copolymerization involving a zwitterionic sulfobetaine comonomer. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2017; 28:1935-1949. [DOI: 10.1080/09205063.2017.1363127] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Wanlu Zhang
- School of Materials Science and Engineering, South China University of Technology, Guangzhou, China
| | - Guangji Li
- School of Materials Science and Engineering, South China University of Technology, Guangzhou, China
| | - Yinlei Lin
- School of Materials Science and Engineering, South China University of Technology, Guangzhou, China
| | - Liying Wang
- School of Materials Science and Engineering, South China University of Technology, Guangzhou, China
| | - Shuqing Wu
- School of Materials Science and Engineering, South China University of Technology, Guangzhou, China
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Xu L, Ma P, Yuan B, Chen Q, Lin S, Chen X, Hua Z, Shen J. Anti-biofouling contact lenses bearing surface-immobilized layers of zwitterionic polymer by one-step modification. RSC Adv 2014. [DOI: 10.1039/c3ra47119e] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Zhou Q, Chen H, Qu M, Wang Q, Yang L, Xie L. Development of a novel ex vivo model of corneal fungal adherence. Graefes Arch Clin Exp Ophthalmol 2010; 249:693-700. [PMID: 21184093 DOI: 10.1007/s00417-010-1601-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2010] [Revised: 11/22/2010] [Accepted: 12/02/2010] [Indexed: 11/24/2022] Open
Abstract
PURPOSE To construct a suitable ex vivo model for the research of molecular mechanisms and the pharmacological screening of fungal adherence on the corneal surface. MATERIALS AND METHODS Mouse eyes were divided into three groups as follows: a control group with normal corneal epithelium, a group with corneal epithelium that was needle-scarified, and a group with corneal epithelium that was completely debrided. All 96 corneas were placed in organ culture and inoculated with 5 μl spore suspensions of Candida albicans at 10⁹, 10⁸, or 10⁷ colony-forming units (CFU)/ml and incubated for 0, 30, 60, or 120 min. The corneas were homogenated and diluted for quantification by counting the CFU. The effects of amphotericin B or chondroitin sulfate on the adherence of the fungal spores were evaluated with the ex vivo organ culture model and were also compared with the human corneal epithelium monolayer model in vitro. RESULTS Compared with the normal corneas with intact epithelium, the corneas with scarified and debrided epithelium adhered more spores for above two and four folds. The spore adhesion on the corneal surface was in an inoculation concentration- and incubation time-dependent manner. Moreover, both amphotericin B and chondroitin sulfate inhibited the adhesion of C. albicans spores on the corneal surface, but the inhibitory rates were different between the ex vivo corneal organ culture model and the in vitro corneal epithelium monolayer model. CONCLUSIONS The corneal organ culture was a suitable ex vivo model for the research of fungal adhesion mechanisms and drug screening.
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Affiliation(s)
- Qingjun Zhou
- Shandong Provincial Key Lab of Ophthalmology, Shandong Eye Institute, Qingdao, 266071, China
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Rändler C, Matthes R, McBain AJ, Giese B, Fraunholz M, Sietmann R, Kohlmann T, Hübner NO, Kramer A. A three-phase in-vitro system for studying Pseudomonas aeruginosa adhesion and biofilm formation upon hydrogel contact lenses. BMC Microbiol 2010; 10:282. [PMID: 21062489 PMCID: PMC2997771 DOI: 10.1186/1471-2180-10-282] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2009] [Accepted: 11/09/2010] [Indexed: 11/24/2022] Open
Abstract
Background Pseudomonas aeruginosa is commonly associated with contact lens (CL) -related eye infections, for which bacterial adhesion and biofilm formation upon hydrogel CLs is a specific risk factor. Whilst P. aeruginosa has been widely used as a model organism for initial biofilm formation on CLs, in-vitro models that closely reproduce in-vivo conditions have rarely been presented. Results In the current investigation, a novel in-vitro biofilm model for studying the adherence of P. aeruginosa to hydrogel CLs was established. Nutritional and interfacial conditions similar to those in the eye of a CL wearer were created through the involvement of a solid:liquid and a solid:air interface, shear forces and a complex artificial tear fluid. Bioburdens varied depending on the CL material and biofilm maturation occurred after 72 h incubation. Whilst a range of biofilm morphologies were visualised including dispersed and adherent bacterial cells, aggregates and colonies embedded in extracellular polymer substances (EPS), EPS fibres, mushroom-like formations, and crystalline structures, a compact and heterogeneous biofilm morphology predominated on all CL materials. Conclusions In order to better understand the process of biofilm formation on CLs and to test the efficacy of CL care solutions, representative in-vitro biofilm models are required. Here, we present a three-phase biofilm model that simulates the environment in the eye of a CL wearer and thus generates biofilms which resemble those commonly observed in-situ.
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Affiliation(s)
- Claudia Rändler
- Department of Hygiene and Environmental Medicine, Ernst Moritz Arndt University Greifswald, Greifswald, Germany
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Yoo MK, Cho KY, Song HH, Choi YJ, Kwon JW, Kim MK, Lee JH, Wee WR, Cho CS. Release of Ciprofloxacin from Chondroitin 6-Sulfate-Graft-Poloxamer Hydrogel In Vitro for Ophthalmic Drug Delivery. Drug Dev Ind Pharm 2008; 31:455-63. [PMID: 16093211 DOI: 10.1080/03639040500214688] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
The system was designed to use Poloxamer as a vehicle for ophthalmic drug delivery using in situ gel formation property. To enhance the wound healing and cell adhesion as well as transparency of Poloxamer hydrogel, chondroitin 6-sulfate (C6S) was introduced into Poloxamer. For this purpose, mono amine-terminated Poloxamer (MATP), which was end-capped with ethylene amine group only in one side of terminal hydroxyl groups of Poloxamer, was synthesized. Subsequently, C6S-graft-Poloxamer copolymer (C6S-g-Poloxamer) was prepared by reaction between the amine groups of MATP and carboxyl groups of C6S in the presence of 1-ethyl-3-(3-dimethylaminopropyl)-carboimide (EDC). The coupling of MATP with C6S was clarified by 1H-NMR and FT-IR spectroscopy. The gelation temperature of graft copolymers was determined by measuring the temperature at which immobility of the meniscus in each solution was first noted. Release behavior of ciprofloxacin from C6S-g-Poloxamer hydrogel in vitro was investigated as a function of C6S content in the graft copolymer by a spectrophotometric assay at 287 nm using an UV spectrophotometer. Differences in the adhesion and morphology of human lens cell between Poloxamer- and C6S-g-Poloxamer-coated surfaces were also investigated. The gelation temperatures of C6S-g-Poloxamer copolymers were lowered with increasing of the concentration of the copolymer and decreasing of C6S content. The release of ciprofloxacin from the graft copolymer was sustained compared with Poloxamer itself and decreased with increasing the content of C6S in the copolymer due to the in situ gel formation of the copolymer and viscous properties of C6S. Human lens cells (B3) adhered to C6S-g-Poloxamer-coated surface were observed as transformed shapes after 2 days. The bioadhesive and thermally gelling of these graft copolymers will be expected to be an excellent drug carrier for the prolonged delivery to surface of the eye.
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Affiliation(s)
- M K Yoo
- School of Agricultural Biotechnology, Seoul National University, Seoul, South Korea
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Abstract
Silver in various forms has long been recognized for antimicrobial properties, both in biomedical devices and in eyes. However, soluble drugs used on the ocular surface are rapidly cleared through tear ducts and eventually ingested, resulting in decreased efficacy of the drug on its target tissue and potential concern for systemic side effects. Silver nanoparticles were studied as a source of anti-microbial silver for possible controlled-release contact lens controlled delivery formulations. Silver ion release over a period of several weeks from nanoparticle sources of various sizes and doses in vitro was evaluated in vitro against Pseudomonas aeruginosa strain PA01. Mammalian cell viability and cytokine expression in response to silver nanoparticle exposure is evaluated using corneal epithelial cells and eye-associated macrophages cultured in vitro in serum-free media. Minimal microcidal and cell toxic effects were observed for several silver nanoparticle suspensions and aqueous extraction times for bulk total silver concentrations commensurate with comparative silver ion (e.g., Ag(+) ((aq))) toxicity. This indicates that (1) silver particles themselves are not microcidal under conditions tested, and (2) insufficient silver ion is generated from these particles at these loadings to produce observable biological effects in these in vitro assays. If dosing allows substantially increased silver particle loading in the lens, the bactericidal efficacy of silver nanoparticles in vitro is one possible approach to limiting bacterial colonization problems associated with extended-wear contact lenses.
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Abstract
Despite sterilization and aseptic procedures, bacterial infection remains a major impediment to the utility of medical implants including catheters, artificial prosthetics, and subcutaneous sensors. Indwelling devices are responsible for over half of all nosocomial infections, with an estimate of 1 million cases per year (2004) in the United States alone. Device-associated infections are the result of bacterial adhesion and subsequent biofilm formation at the implantation site. Although useful for relieving associated systemic infections, conventional antibiotic therapies remain ineffective against biofilms. Unfortunately, the lack of a suitable treatment often leaves extraction of the contaminated device as the only viable option for eliminating the biofilm. Much research has focused on developing polymers that resist bacterial adhesion for use as medical device coatings. This tutorial review focuses on coatings that release antimicrobial agents (i.e., active release strategies) for reducing the incidence of implant-associated infection. Following a brief introduction to bacteria, biofilms, and infection, the development and study of coatings that slowly release antimicrobial agents such as antibiotics, silver ions, antibodies, and nitric oxide are covered. The success and limitations of these strategies are highlighted.
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Affiliation(s)
- Evan M Hetrick
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
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Sun D, Accavitti MA, Bryers JD. Inhibition of biofilm formation by monoclonal antibodies against Staphylococcus epidermidis RP62A accumulation-associated protein. CLINICAL AND DIAGNOSTIC LABORATORY IMMUNOLOGY 2005; 12:93-100. [PMID: 15642991 PMCID: PMC540198 DOI: 10.1128/cdli.12.1.93-100.2005] [Citation(s) in RCA: 83] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Staphylococcus epidermidis expresses a 140-kDa cell wall-bound protein accumulation-associated protein (AAP) to adhere to and accumulate as a biofilm on a surface. Potentially blocking AAP with a monoclonal antibody (MAb) could reduce or eliminate S. epidermidis bacterial colonization of biomedical devices. Here, we report on our efforts to (i) isolate AAP, (ii) generate MAbs against AAP, and (iii) determine the efficacy of MAbs to inhibit S. epidermidis biofilm formation. An M7 S. epidermidis mutant, reportedly deficient in AAP expression, was used as a negative control. Postinoculation murine sera, containing polyclonal antibodies against AAP, were able to reduce S. epidermidis biofilm formation by 54%. Select MAbs against AAP were able to reduce S. epidermidis by no more than 66%. Two MAb mixtures, 12C6/12A1 and 3C1/12A1, reduced S. epidermidis accumulation up to 79 and 87%, respectively, significantly more than individual MAbs. Contrary to a previous report, biofilm-deficient S. epidermidis mutant M7 expressed a 200-kDa protein on its cell wall that specifically bound AAP MAbs. Peptide characterization of this M7 protein by microcapillary reversed-phase high-pressure liquid chromatography-nanoelectrospray tandem mass spectrometry resulted in 53% homology with AAP. Ongoing studies will elucidate the dynamic expression of AAP and the M7 200-kDa protein in order to define their roles in biofilm formation.
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Affiliation(s)
- Daqian Sun
- Department of Chemical Engineering, University of Connecticut, Storrs, Connecticut, USA
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Abstract
Human and humanised antibodies are now poised to become a major new class of protein-based therapeutic agents. A significant fraction of new drugs in clinical testing (approximately 20% in 2002) are antibody classes. Monoclonal antibodies (mAbs) with high affinities against newly discovered disease targets, both cellularly and extracellularly, are now clinically proven to elicit high bioactivities against numerous diseases, including tumours, infections, asthma, inflammation, arthritis and osteoporosis. Clinical humanised antibody delivery is typically intravenous, with large multiple doses (grams) required for systemic volumes of distribution. Due to the relatively high costs of both this drug type, and its common mode of administration, alternatives are sought where doses might be reduced and the bioavailability and efficacy enhanced. Local, controlled-release methods that deliver antibodies locally to site of disease, offer new possibilities with these potential advantages. However, protein drugs frequently exhibit formulation challenges when packaged in delivery vehicles, and as globular proteins, antibodies are no exception. Several examples of mAb controlled-release and local delivery strategies against several disease targets are reviewed. Importantly, several antibody delivery methods work in tandem with existing clinically-accepted therapeutics, sometimes exhibiting potentiating or synergistic effects in animal models with small molecule, systemically administered drugs.
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Affiliation(s)
- David W Grainger
- Department of Chemistry, Colorado State University, Fort Collins, CO 80523-1872, USA.
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