1
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Ishihara K, Shi X, Fukazawa K, Yamaoka T, Yao G, Wu JY. Biomimetic-Engineered Silicone Hydrogel Contact Lens Materials. ACS APPLIED BIO MATERIALS 2023; 6:3600-3616. [PMID: 37616500 PMCID: PMC10521029 DOI: 10.1021/acsabm.3c00296] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Accepted: 08/16/2023] [Indexed: 08/26/2023]
Abstract
Contact lenses are one of the most successful applications of biomaterials. The chemical structure of the polymers used in contact lenses plays an important role in determining the function of contact lenses. Different types of contact lenses have been developed based on the chemical structure of polymers. When designing contact lenses, materials scientists consider factors such as mechanical properties, processing properties, optical properties, histocompatibility, and antifouling properties, to ensure long-term wear with minimal discomfort. Advances in contact lens materials have addressed traditional issues such as oxygen permeability and biocompatibility, improving overall comfort, and duration of use. For example, silicone hydrogel contact lenses with high oxygen permeability were developed to extend the duration of use. In addition, controlling the surface properties of contact lenses in direct contact with the cornea tissue through surface polymer modification mimics the surface morphology of corneal tissue while maintaining the essential properties of the contact lens, a significant improvement for long-term use and reuse of contact lenses. This review presents the material science elements required for advanced contact lenses of the future and summarizes the chemical methods for achieving these goals.
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Affiliation(s)
- Kazuhiko Ishihara
- Division
of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Xinfeng Shi
- Alcon
Research, LLC, Fort Worth, Texas 76134, United States
| | - Kyoko Fukazawa
- National
Cerebral and Cardiovascular Center Research Institute, Suita, Osaka 564-8565, Japan
| | - Tetsuji Yamaoka
- National
Cerebral and Cardiovascular Center Research Institute, Suita, Osaka 564-8565, Japan
| | - George Yao
- Alcon
Research, LLC, Duluth, Georgia 30097, United States
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2
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Sapowadia A, Ghanbariamin D, Zhou L, Zhou Q, Schmidt T, Tamayol A, Chen Y. Biomaterial Drug Delivery Systems for Prominent Ocular Diseases. Pharmaceutics 2023; 15:1959. [PMID: 37514145 PMCID: PMC10383518 DOI: 10.3390/pharmaceutics15071959] [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: 05/02/2023] [Revised: 06/26/2023] [Accepted: 07/13/2023] [Indexed: 07/30/2023] Open
Abstract
Ocular diseases, such as age-related macular degeneration (AMD) and glaucoma, have had a profound impact on millions of patients. In the past couple of decades, these diseases have been treated using conventional techniques but have also presented certain challenges and limitations that affect patient experience and outcomes. To address this, biomaterials have been used for ocular drug delivery, and a wide range of systems have been developed. This review will discuss some of the major classes and examples of biomaterials used for the treatment of prominent ocular diseases, including ocular implants (biodegradable and non-biodegradable), nanocarriers (hydrogels, liposomes, nanomicelles, DNA-inspired nanoparticles, and dendrimers), microneedles, and drug-loaded contact lenses. We will also discuss the advantages of these biomaterials over conventional approaches with support from the results of clinical trials that demonstrate their efficacy.
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Affiliation(s)
- Avin Sapowadia
- Department of Biomedical Engineering, University of Connecticut, Storrs, CT 06269, USA
| | - Delaram Ghanbariamin
- Department of Biomedical Engineering, University of Connecticut, Storrs, CT 06269, USA
- Department of Biomedical Engineering, University of Connecticut Health Center, Farmington, CT 06030, USA
| | - Libo Zhou
- Department of Biomedical Engineering, University of Connecticut, Storrs, CT 06269, USA
| | - Qifa Zhou
- Department of Biomedical Engineering and Ophthalmology, University of Southern California, Los Angeles, CA 90089, USA
| | - Tannin Schmidt
- Department of Biomedical Engineering, University of Connecticut, Storrs, CT 06269, USA
- Department of Biomedical Engineering, University of Connecticut Health Center, Farmington, CT 06030, USA
| | - Ali Tamayol
- Department of Biomedical Engineering, University of Connecticut, Storrs, CT 06269, USA
- Department of Biomedical Engineering, University of Connecticut Health Center, Farmington, CT 06030, USA
| | - Yupeng Chen
- Department of Biomedical Engineering, University of Connecticut, Storrs, CT 06269, USA
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3
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Cao Y, Chen X, Matarasso A, Wang Z, Song Y, Wu G, Zhang X, Sun H, Wang X, Bruchas MR, Li Y, Zhang Y. Covalently Attached Slippery Surface Coatings to Reduce Protein Adsorptions on Poly(dimethylsiloxane) Planar Surfaces and 3D Microfluidic Channels. ACS APPLIED MATERIALS & INTERFACES 2023; 15:10.1021/acsami.2c20834. [PMID: 36763047 PMCID: PMC10412728 DOI: 10.1021/acsami.2c20834] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Silicone elastomers, such as poly(dimethylsiloxane) (PDMS), have a broad range of applications in basic biomedical research and clinical medicine, ranging from the preparation of microfluidic devices for organs-on-chips and ventriculoperitoneal shunts for the treatment of hydrocephalus to implantable neural probes for neuropharmacology. Despite the importance, the protein adsorptions on silicone elastomers in these application environments represent a significant challenge. Surface coatings with slippery lubricants, inspired by the Nepenthes pitcher plants, have recently received much attention for reducing protein adsorptions. Nevertheless, the depletion of the physically infused lubricants limits their broad applications. In this study, we report a covalently attached slippery surface coating to reduce protein adsorptions on PDMS surfaces. As demonstrations, we show that the adsorption of serum proteins, human fibrinogen and albumin, can be significantly reduced by the slippery surface coating in both planar PDMS surfaces and 3D microfluidic channels. The preparation of slippery surface coatings relies on the acid-catalyzed polycondensation reaction of dimethyldimethoxysilane, which utilizes a low-cost and scalable dip-coating method. Furthermore, cell metabolic activity and viability studies demonstrate the biocompatibility of the surface coating. These results suggest the potential applications of slippery surface coatings to reduce protein adsorptions for implantable medical devices, organs-on-chips, and many others.
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Affiliation(s)
- Yue Cao
- Department of Biomedical Engineering and the Institute of Materials Science, University of Connecticut, Storrs, CT 06269, USA
| | - Xingchi Chen
- Department of Chemical and Biomedical Engineering, FAMU-FSU College of Engineering, Florida State University, Tallahassee, FL 32306, USA
| | - Avi Matarasso
- Department of Bioengineering, University of Washington, Seattle, WA 98195, USA
| | - Zizheng Wang
- Department of Materials Science and Engineering and the Institute of Materials Science, University of Connecticut, Storrs, CT 06269, USA
| | - Yang Song
- Department of Biomedical Engineering and the Institute of Materials Science, University of Connecticut, Storrs, CT 06269, USA
| | - Guangfu Wu
- Department of Biomedical Engineering and the Institute of Materials Science, University of Connecticut, Storrs, CT 06269, USA
| | - Xincheng Zhang
- Department of Biomedical Engineering and the Institute of Materials Science, University of Connecticut, Storrs, CT 06269, USA
| | - He Sun
- Department of Biomedical Engineering and the Institute of Materials Science, University of Connecticut, Storrs, CT 06269, USA
| | - Xueju Wang
- Department of Materials Science and Engineering and the Institute of Materials Science, University of Connecticut, Storrs, CT 06269, USA
| | - Michael R. Bruchas
- Department of Bioengineering, University of Washington, Seattle, WA 98195, USA
- Department of Anesthesiology and Pain Medicine, University of Washington, Seattle, WA 98195, USA
- Center for Neurobiology of Addiction, Pain, and Emotion, University of Washington, Seattle, WA 98195, USA
- Department of Pharmacology, University of Washington, Seattle, WA 98195, USA
| | - Yan Li
- Department of Chemical and Biomedical Engineering, FAMU-FSU College of Engineering, Florida State University, Tallahassee, FL 32306, USA
| | - Yi Zhang
- Department of Biomedical Engineering and the Institute of Materials Science, University of Connecticut, Storrs, CT 06269, USA
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4
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Recent Advancements in Metallic Drug-Eluting Implants. Pharmaceutics 2023; 15:pharmaceutics15010223. [PMID: 36678852 PMCID: PMC9862589 DOI: 10.3390/pharmaceutics15010223] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 12/29/2022] [Accepted: 01/04/2023] [Indexed: 01/11/2023] Open
Abstract
Over the past decade, metallic drug-eluting implants have gained significance in orthopedic and dental applications for controlled drug release, specifically for preventing infection associated with implants. Recent studies showed that metallic implants loaded with drugs were substituted for conventional bare metal implants to achieve sustained and controlled drug release, resulting in a desired local therapeutic concentration. A number of secondary features can be provided by the incorporated active molecules, including the promotion of osteoconduction and angiogenesis, the inhibition of bacterial invasion, and the modulation of host body reaction. This paper reviews recent trends in the development of the metallic drug-eluting implants with various drug delivery systems in the past three years. There are various types of drug-eluting implants that have been developed to meet this purpose, depending on the drug or agents that have been loaded on them. These include anti-inflammatory drugs, antibiotics agents, growth factors, and anti-resorptive drugs.
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5
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Jia S, Bu Y, Lau DSA, Lin Z, Sun T, Lu WW, Lu S, Ruan C, Chan CHJ. Advances in 3D bioprinting technology for functional corneal reconstruction and regeneration. Front Bioeng Biotechnol 2023; 10:1065460. [PMID: 36686254 PMCID: PMC9852906 DOI: 10.3389/fbioe.2022.1065460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Accepted: 12/19/2022] [Indexed: 01/09/2023] Open
Abstract
Corneal transplantation constitutes one of the major treatments in severe cases of corneal diseases. The lack of cornea donors as well as other limitations of corneal transplantation necessitate the development of artificial corneal substitutes. Biosynthetic cornea model using 3D printing technique is promising to generate artificial corneal structure that can resemble the structure of the native human cornea and is applicable for regenerative medicine. Research on bioprinting artificial cornea has raised interest into the wide range of materials and cells that can be utilized as bioinks for optimal clarity, biocompatibility, and tectonic strength. With continued advances in biomaterials science and printing technology, it is believed that bioprinted cornea will eventually achieve a level of clinical functionality and practicality as to replace donated corneal tissues, with their associated limitations such as limited or unsteady supply, and possible infectious disease transmission. Here, we review the literature on bioprinting strategies, 3D corneal modelling, material options, and cellularization strategies in relation to keratoprosthesis design. The progress, limitations and expectations of recent cases of 3D bioprinting of artifial cornea are discussed. An outlook on the rise of 3D bioprinting in corneal reconstruction and regeneration is provided.
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Affiliation(s)
- Shuo Jia
- Department of Ophthalmology, LKS Faculty of Medicine, University of Hong Kong, Hong Kong, Hong Kong SAR, China
| | - Yashan Bu
- Department of Ophthalmology, LKS Faculty of Medicine, University of Hong Kong, Hong Kong, Hong Kong SAR, China
| | - Dzi-Shing Aaron Lau
- Department of Orthopedic and Traumatology, LKS Faculty of Medicine, University of Hong Kong, Hong Kong, Hong Kong SAR, China
| | - Zhizhen Lin
- Department of Ophthalmology, LKS Faculty of Medicine, University of Hong Kong, Hong Kong, Hong Kong SAR, China
| | - Tianhao Sun
- Department of Orthopedic and Traumatology, LKS Faculty of Medicine, University of Hong Kong, Hong Kong, Hong Kong SAR, China,Shenzhen Gangqing Biomedical Technology Co. Ltd, Shenzhen, China
| | - Weijia William Lu
- Department of Orthopedic and Traumatology, LKS Faculty of Medicine, University of Hong Kong, Hong Kong, Hong Kong SAR, China,Research Center for Human Tissues and Organs Degeneration, Institute of Biomedicine and Biotechnology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Sheng Lu
- Department of Orthopedic Surgery, The First People’s Hospital of Yunnan Province, Kunming, China
| | - Changshun Ruan
- Research Center for Human Tissues and Organs Degeneration, Institute of Biomedicine and Biotechnology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Cheuk-Hung Jonathan Chan
- Department of Ophthalmology, LKS Faculty of Medicine, University of Hong Kong, Hong Kong, Hong Kong SAR, China,*Correspondence: Cheuk-Hung Jonathan Chan,
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6
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SCHRADER P, SCHMIDT A, SCHLENZ MA, KOLLING S, WÖSTMANN B, BERLINGER M. A statistical model of the rate-dependent fracture behavior of dental polymer-based biomaterials. Dent Mater J 2023; 42:177-186. [PMID: 36464291 DOI: 10.4012/dmj.2022-163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Abstract
An insight into the fracture behavior of dental polymer-based biomaterials is important to reduce safety hazards for patients. The crack-driven fracture process of polymers is largely stochastic and often dependent on the loading rate. Therefore, in this study, a statistical model was developed based on three-point bending tests on dental polymethyl methacrylate at different loading rates. The fracture strains were investigated (two-parameter Weibull distribution (2PW)) and the rate-dependency of the 2PW parameters were examined (Cramér-von Mises test (CvM)), arriving at the conclusion that there could be a limiting distribution for both quasi-static and dynamic failure. Based on these findings, a phenomenological model based on exponential functions was developed, which would further facilitate the determination of the failure probability of the material at a certain strain with a given strain rate. The model can be integrated into finite element solvers to consider the stochastic fracture behavior in simulations.
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Affiliation(s)
- Peer SCHRADER
- Institute of Mechanics and Materials, Technische Hochschule Mittelhessen
| | - Alexander SCHMIDT
- Department of Prosthodontics, Dental Clinic, Justus Liebig University Giessen
| | | | - Stefan KOLLING
- Institute of Mechanics and Materials, Technische Hochschule Mittelhessen
| | - Bernd WÖSTMANN
- Department of Prosthodontics, Dental Clinic, Justus Liebig University Giessen
| | - Marcel BERLINGER
- Institute of Mechanics and Materials, Technische Hochschule Mittelhessen
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7
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Matsumura K, Rajan R, Ahmed S. Bridging polymer chemistry and cryobiology. Polym J 2022. [DOI: 10.1038/s41428-022-00735-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
Abstract
AbstractPolymers, especially charged polymers, are the key to a sustainable future, as they have the capability to act as alternatives to plastics, reduce the impact of global warming, and offer solutions to global environmental pollution problems. Biomaterial polymers have proven to be incredibly effective in a multitude of applications, including clinical applications. In the fields of cryobiology and cryopreservation, polymers have emerged as credible alternatives to small molecules and other compounds, yielding excellent results. This review outlines the results of research in the areas of polymer chemistry and cryobiology, which have not been discussed together previously. Herein, we explain how recent polymer research has enabled the development of polymeric cryoprotectants with novel mechanisms and the development of novel methods for the intracellular delivery of substances, such as drugs, using a cryobiological technique called the freeze-concentration effect. Our findings indicate that interdisciplinary collaboration between cryobiologists and polymer chemists has led to exciting developments that will further cell biology and medical research.
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8
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Tnibar A. Intra-articular 2.5% polyacrylamide hydrogel, a new concept in the medication of equine osteoarthritis: A review. J Equine Vet Sci 2022; 119:104143. [PMID: 36273533 DOI: 10.1016/j.jevs.2022.104143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2022] [Revised: 10/15/2022] [Accepted: 10/17/2022] [Indexed: 11/27/2022]
Abstract
Recent clinical and experimental trials have demonstrated that intra-articular 2.5% Polyacrylamide hydrogel (PAAG) is highly effective (82.5% free of lameness horses at 2 year follow-up), lasting and safe for the treatment of equine osteoarthritis (OA). Over the last decade, intra-articular 2.5% PAAG has shown to be a potent and promising drug in the medication of OA in horses, as no other single medical treatment for OA has such prolonged efficacy. Most of these studies were presenting some limitations. Preliminary observations on the mechanisms of action of intra-articular 2.5% PAAG support a mechanical effect through integration into the synovial membrane, an increase in joint elasticity possibly reducing overall joint capsule stiffness, and provision of lasting viscosupplementation which contributes to protecting articular surfaces. In addition, no effects on pro-inflammatory cytokines have been observed. Studies also suggest that these positive effects occur in the absence of intra-articular neurotoxicity or fibrosis. The effect on the synovial membrane and joint capsule and the long-acting viscosupplementation represent new concepts in the management of equine OA. Horse; Osteoarthritis, Medication, 2.5% polyacrylamide hydrogel.
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Affiliation(s)
- Aziz Tnibar
- The Equine Hospital, Jockey Club of Saudi Arabia, PO Box 26323, Riyadh, Saudi Arabia.
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9
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Tawfik M, Chen F, Goldberg JL, Sabel BA. Nanomedicine and drug delivery to the retina: current status and implications for gene therapy. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2022; 395:1477-1507. [PMID: 36107200 PMCID: PMC9630211 DOI: 10.1007/s00210-022-02287-3] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Accepted: 08/31/2022] [Indexed: 10/14/2022]
Abstract
Blindness affects more than 60 million people worldwide. Retinal disorders, including age-related macular degeneration (AMD), diabetic retinopathy (DR), and glaucoma, are the leading causes of blindness. Finding means to optimize local and sustained delivery of drugs or genes to the eye and retina is one goal to advance the development of new therapeutics. Despite the ease of accessibility of delivering drugs via the ocular surface, the delivery of drugs to the retina is still challenging due to anatomic and physiologic barriers. Designing a suitable delivery platform to overcome these barriers should enhance drug bioavailability and provide a safe, controlled, and sustained release. Current inventions for posterior segment treatments include intravitreal implants and subretinal viral gene delivery that satisfy these criteria. Several other novel drug delivery technologies, including nanoparticles, micelles, dendrimers, microneedles, liposomes, and nanowires, are now being widely studied for posterior segment drug delivery, and extensive research on gene delivery using siRNA, mRNA, or aptamers is also on the rise. This review discusses the current state of retinal drug/gene delivery and highlights future therapeutic opportunities.
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Affiliation(s)
- Mohamed Tawfik
- Institute of Medical Psychology, Medical Faculty, Otto-Von-Guericke University, Magdeburg, Germany
| | - Fang Chen
- Spencer Center for Vision Research, Byers Eye Institute, Stanford University School of Medicine, Palo Alto, CA, USA
| | - Jeffrey L Goldberg
- Spencer Center for Vision Research, Byers Eye Institute, Stanford University School of Medicine, Palo Alto, CA, USA
| | - Bernhard A Sabel
- Institute of Medical Psychology, Medical Faculty, Otto-Von-Guericke University, Magdeburg, Germany.
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10
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Seah I, Ong C, Liu Z, Su X. Polymeric biomaterials in the treatment of posterior segment diseases. Front Med (Lausanne) 2022; 9:949543. [PMID: 36059842 PMCID: PMC9433984 DOI: 10.3389/fmed.2022.949543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2022] [Accepted: 07/28/2022] [Indexed: 11/13/2022] Open
Abstract
Polymeric biomaterials are biological or synthetic substances which can be engineered to interact with biological systems for the diagnosis or treatment of diseases. These biomaterials have immense potential for treating eyes diseases, particularly the retina—a site of many inherited and acquired diseases. Polymeric biomaterials can be engineered to function both as an endotamponade agent and to prevent intraocular scarring in retinal detachment repair surgeries. They can also be designed as a drug delivery platform for treatment of retinal diseases. Finally, they can be used as scaffolds for cellular products and provide non-viral gene delivery solutions to the retina. This perspective article explains the role of polymeric biomaterials in the treatment of retinal conditions by highlighting recent advances being translated to clinical practice. The article will also identify potential hurdles to clinical translation as future research directions in the field.
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Affiliation(s)
- Ivan Seah
- Department of Ophthalmology, National University Hospital, Singapore, Singapore
- Department of Ophthalmology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (ASTAR), Singapore, Singapore
| | - Charles Ong
- Singapore National Eye Centre (SNEC), Singapore, Singapore
| | - Zengping Liu
- Department of Ophthalmology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (ASTAR), Singapore, Singapore
- Singapore Eye Research Institute (SERI), Singapore, Singapore
| | - Xinyi Su
- Department of Ophthalmology, National University Hospital, Singapore, Singapore
- Department of Ophthalmology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (ASTAR), Singapore, Singapore
- Singapore Eye Research Institute (SERI), Singapore, Singapore
- *Correspondence: Xinyi Su
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11
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Glaucoma Treatment and Hydrogel: Current Insights and State of the Art. Gels 2022; 8:gels8080510. [PMID: 36005112 PMCID: PMC9407420 DOI: 10.3390/gels8080510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 08/09/2022] [Accepted: 08/13/2022] [Indexed: 11/17/2022] Open
Abstract
Aqueous gels formulated using hydrophilic polymers (hydrogels) and those based on stimuli-responsive polymers (in situ gelling or gel-forming systems) attract increasing interest in the treatment of several eye diseases. Their chemical structure enables them to incorporate various ophthalmic medications, achieving their optimal therapeutic doses and providing more clinically relevant time courses (weeks or months as opposed to hours and days), which will inevitably reduce dose frequency, thereby improving patient compliance and clinical outcomes. Due to its chronic course, the treatment of glaucoma may benefit from applying gel technologies as drug-delivering systems and as antifibrotic treatment during and after surgery. Therefore, our purpose is to review current applications of ophthalmic gelling systems with particular emphasis on glaucoma.
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12
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Sahan AZ, Baday M, Patel CB. Biomimetic Hydrogels in the Study of Cancer Mechanobiology: Overview, Biomedical Applications, and Future Perspectives. Gels 2022; 8:gels8080496. [PMID: 36005097 PMCID: PMC9407355 DOI: 10.3390/gels8080496] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 06/26/2022] [Accepted: 07/02/2022] [Indexed: 11/18/2022] Open
Abstract
Hydrogels are biocompatible polymers that are tunable to the system under study, allowing them to be widely used in medicine, bioprinting, tissue engineering, and biomechanics. Hydrogels are used to mimic the three-dimensional microenvironment of tissues, which is essential to understanding cell–cell interactions and intracellular signaling pathways (e.g., proliferation, apoptosis, growth, and survival). Emerging evidence suggests that the malignant properties of cancer cells depend on mechanical cues that arise from changes in their microenvironment. These mechanobiological cues include stiffness, shear stress, and pressure, and have an impact on cancer proliferation and invasion. The hydrogels can be tuned to simulate these mechanobiological tissue properties. Although interest in and research on the biomedical applications of hydrogels has increased in the past 25 years, there is still much to learn about the development of biomimetic hydrogels and their potential applications in biomedical and clinical settings. This review highlights the application of hydrogels in developing pre-clinical cancer models and their potential for translation to human disease with a focus on reviewing the utility of such models in studying glioblastoma progression.
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Affiliation(s)
- Ayse Z. Sahan
- Biomedical Sciences Graduate Program, Department of Pharmacology, School of Medicine, University California at San Diego, 9500 Gilman Drive, San Diego, CA 92093, USA
| | - Murat Baday
- Department of Neurology and Neurological Sciences, School of Medicine, Stanford University, Stanford, CA 94305, USA
- Precision Health and Integrated Diagnostics Center, School of Medicine, Stanford University, Stanford, CA 94305, USA
- Correspondence: (M.B.); (C.B.P.)
| | - Chirag B. Patel
- Department of Neuro-Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
- Neuroscience Graduate Program, The University of Texas MD Anderson Cancer Center UTHealth Graduate School of Biomedical Sciences (GSBS), Houston, TX 77030, USA
- Cancer Biology Program, The University of Texas MD Anderson Cancer Center UTHealth Graduate School of Biomedical Sciences (GSBS), Houston, TX 77030, USA
- Correspondence: (M.B.); (C.B.P.)
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13
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Anti-cancer activity of naringenin loaded smart polymeric nanoparticles in breast cancer. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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14
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Controlled release of low-molecular weight, polymer-free corticosteroid coatings suppresses fibrotic encapsulation of implanted medical devices. Biomaterials 2022; 286:121586. [DOI: 10.1016/j.biomaterials.2022.121586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2021] [Revised: 05/12/2022] [Accepted: 05/15/2022] [Indexed: 11/23/2022]
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15
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Xu J, Zhang C, Cheng C, Yang J, Li C, Liu X, Sang Y. A Tasquinomod-loaded dopamine-modified pH sensitive hydrogel is effective at inhibiting the proliferation of KRAS mutant lung cancer cells. J Appl Biomater Funct Mater 2022; 20:22808000211073729. [PMID: 35088614 DOI: 10.1177/22808000211073729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Hydrogels can maintain a high local drug concentration during treatments and may be useful to local targeting diseased areas. We propose a pH sensitive hydrogel consisting of poly-vinylpyrrolidone (PVP) and chitosan as a new treatment method for KRAS mutant lung cancer. Addition of dopamine improved the drug loading and release effects of this hydrogel. We demonstrate that Tasquinimod-loading of this dopamine-modified pH sensitive hydrogel is more effective than Tasquinimod alone for inhibiting the proliferation of KRAS mutant lung cancer cells. Combination of conventional drugs with hydrogels may thus provide a new treatment modality for lung cancer.
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Affiliation(s)
- Jun Xu
- The First Hospital of Nanchang, Nanchang, Jiangxi, P.R. China
| | - Chuxi Zhang
- The First Clinical Medical College of Nanchang University, Nanchang, Jiangxi, P.R. China
| | - Chun Cheng
- The First Hospital of Nanchang, Nanchang, Jiangxi, P.R. China.,Jiangxi Key Laboratory of Cancer Metastasis and Precision Treatment, Department of Center Laboratory, Nanchang, Jiangxi, P.R. China
| | - Jun Yang
- The First Hospital of Nanchang, Nanchang, Jiangxi, P.R. China.,Jiangxi Key Laboratory of Cancer Metastasis and Precision Treatment, Department of Center Laboratory, Nanchang, Jiangxi, P.R. China
| | - Chenxi Li
- The First Hospital of Nanchang, Nanchang, Jiangxi, P.R. China.,Jiangxi Key Laboratory of Cancer Metastasis and Precision Treatment, Department of Center Laboratory, Nanchang, Jiangxi, P.R. China
| | - Xia Liu
- Department of Medical Oncology, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, China
| | - Yi Sang
- The First Hospital of Nanchang, Nanchang, Jiangxi, P.R. China.,Jiangxi Key Laboratory of Cancer Metastasis and Precision Treatment, Department of Center Laboratory, Nanchang, Jiangxi, P.R. China
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The surface topography of silicone breast implants mediates the foreign body response in mice, rabbits and humans. Nat Biomed Eng 2021; 5:1115-1130. [PMID: 34155355 DOI: 10.1038/s41551-021-00739-4] [Citation(s) in RCA: 111] [Impact Index Per Article: 37.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Accepted: 04/28/2021] [Indexed: 02/07/2023]
Abstract
Silicone is widely used in chronic implants and is generally perceived to be safe. However, textured breast implants have been associated with immune-related complications, including malignancies. Here, by examining for up to one year the foreign body response and capsular fibrosis triggered by miniaturized or full-scale clinically approved breast implants with different surface topography (average roughness, 0-90 μm) placed in the mammary fat pads of mice or rabbits, respectively, we show that surface topography mediates immune responses to the implants. We also show that the surface surrounding human breast implants collected during revision surgeries also differentially alters the individual's immune responses to the implant. Moreover, miniaturized implants with an average roughness of 4 μm can largely suppress the foreign body response and fibrosis (but not in T-cell-deficient mice), and that tissue surrounding these implants displayed higher levels of immunosuppressive FOXP3+ regulatory T cells. Our findings suggest that, amongst the topographies investigated, implants with an average roughness of 4 μm provoke the least amount of inflammation and foreign body response.
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Song Y, Overmass M, Fan J, Hodge C, Sutton G, Lovicu FJ, You J. Application of Collagen I and IV in Bioengineering Transparent Ocular Tissues. Front Surg 2021; 8:639500. [PMID: 34513910 PMCID: PMC8427501 DOI: 10.3389/fsurg.2021.639500] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Accepted: 07/26/2021] [Indexed: 12/13/2022] Open
Abstract
Collagens represent a major group of structural proteins expressed in different tissues and display distinct and variable properties. Whilst collagens are non-transparent in the skin, they confer transparency in the cornea and crystalline lens of the eye. There are 28 types of collagen that all share a common triple helix structure yet differ in the composition of their α-chains leading to their different properties. The different organization of collagen fibers also contributes to the variable tissue morphology. The important ability of collagen to form different tissues has led to the exploration and application of collagen as a biomaterial. Collagen type I (Col-I) and collagen type IV (Col-IV) are the two primary collagens found in corneal and lens tissues. Both collagens provide structure and transparency, essential for a clear vision. This review explores the application of these two collagen types as novel biomaterials in bioengineering unique tissue that could be used to treat a variety of ocular diseases leading to blindness.
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Affiliation(s)
- Yihui Song
- Save Sight Institute, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia
| | - Morgan Overmass
- Save Sight Institute, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia
| | - Jiawen Fan
- Key Laboratory of Myopia of State Health Ministry, Department of Ophthalmology and Vision Sciences, Eye and Ear, Nose, and Throat (ENT) Hospital, Shanghai Medical College, Fudan University, Shanghai, China
| | - Chris Hodge
- Save Sight Institute, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia
- New South Wales (NSW) Tissue Bank, Sydney, NSW, Australia
- Vision Eye Institute, Chatswood, NSW, Australia
| | - Gerard Sutton
- Save Sight Institute, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia
- New South Wales (NSW) Tissue Bank, Sydney, NSW, Australia
- Vision Eye Institute, Chatswood, NSW, Australia
| | - Frank J. Lovicu
- Save Sight Institute, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia
- Discipline of Anatomy and Histology, School of Medical Sciences, The University of Sydney, Sydney, NSW, Australia
| | - Jingjing You
- Save Sight Institute, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia
- School of Optometry and Vision Science, University of New South Wales, Sydney, NSW, Australia
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18
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Hyaluronic acid in ocular drug delivery. Carbohydr Polym 2021; 264:118006. [DOI: 10.1016/j.carbpol.2021.118006] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 03/24/2021] [Accepted: 03/25/2021] [Indexed: 12/12/2022]
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19
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Almenara C, Bartol-Puyal FDA, Soriano D, Idoipe M, Chacón M, Méndez-Martínez S, Giménez G, Polo V. Comparison of posterior capsule opacification between Clareon CNA0T0 and Tecnis ZCB00 intraocular lenses. Eur J Ophthalmol 2021; 31:3355-3366. [PMID: 33522302 DOI: 10.1177/1120672121991718] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
INTRODUCTION The purpose is to compare posterior capsule opacification (PCO) and its impact on vision between Clareon CNA0T0 (Alcon) and Tecnis ZCB00 intraocular lenses (IOLs) (Johnson&Johnson) 1, 6, and 12 months after implantation. METHODS A prospective observational study was performed at the Nuestra Señora de Gracia Hospital (Zaragoza, Spain). Fifty eyes (50 patients) with Tecnis IOL (group 1) and 60 eyes (60 patients) with Clareon IOL (group 2) were enrolled. One, 6, and 12 months after age-related cataract surgery by five different surgeons, the following tests were performed: mesopic corrected distance visual acuity (CDVA), CSV1000-E test, KR-1W wavefront analyzer, OQAS II, Catquest-9SF questionnaire and mydriatic slit-lamp pictures. PCO intensity was quantified and the area of opacification was measured using ImageJ (NIH). RESULTS Mean age was 71.20 ± 6.79 years in group 1, and 71.73 ± 8.17 years in group 2 (p = 0.72); mean axial length was 23.46 ± 1.14 and 23.53 ± 0.91 mm, respectively (p = 0.72); mean IOL power was 21.69 ± 2.26 D and 21.28 ± 2.44 D, respectively (p = 0.37). One month after surgery there were differences in intensity of PCO (0.73 ± 0.60 and 1.05 ± 0.71, respectively, p = 0.02). Six months after surgery statistical differences were found in VA with 20% CS in mydriatic conditions (0.26 ± 0.21 logMAR (20/36) and 0.18 ± 0.17 logMAR (20/30), respectively, p = 0.04). Twelve months after surgery, no differences were detected between groups. As for the evolution of PCO within the Clareon group, high order aberrations (p < 0.05) and the Strehl ratio (p = 0.02) decreased. CONCLUSION There are no differences in slit-lamp pictures or visual function between both IOLs during the first 12 months after implantation.
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Affiliation(s)
- Cristina Almenara
- Ophthalmology Department, Nuestra Señora de Gracia Hospital, Zaragoza, Spain.,Aragon Health Research Institute (IIS Aragón), Miguel Servet Ophthalmology Research Group (GIMSO), Zaragoza, Spain.,Department of Surgery, Obstetrics and Gynecology, University of Zaragoza, Spain
| | - Francisco de Asís Bartol-Puyal
- Ophthalmology Department, Nuestra Señora de Gracia Hospital, Zaragoza, Spain.,Aragon Health Research Institute (IIS Aragón), Miguel Servet Ophthalmology Research Group (GIMSO), Zaragoza, Spain.,Department of Surgery, Obstetrics and Gynecology, University of Zaragoza, Spain
| | - Diana Soriano
- Ophthalmology Department, Nuestra Señora de Gracia Hospital, Zaragoza, Spain.,Aragon Health Research Institute (IIS Aragón), Miguel Servet Ophthalmology Research Group (GIMSO), Zaragoza, Spain.,Department of Surgery, Obstetrics and Gynecology, University of Zaragoza, Spain
| | - Miriam Idoipe
- Ophthalmology Department, Nuestra Señora de Gracia Hospital, Zaragoza, Spain.,Aragon Health Research Institute (IIS Aragón), Miguel Servet Ophthalmology Research Group (GIMSO), Zaragoza, Spain.,Department of Surgery, Obstetrics and Gynecology, University of Zaragoza, Spain
| | - María Chacón
- Ophthalmology Department, Nuestra Señora de Gracia Hospital, Zaragoza, Spain.,Aragon Health Research Institute (IIS Aragón), Miguel Servet Ophthalmology Research Group (GIMSO), Zaragoza, Spain
| | - Silvia Méndez-Martínez
- Ophthalmology Department, Nuestra Señora de Gracia Hospital, Zaragoza, Spain.,Aragon Health Research Institute (IIS Aragón), Miguel Servet Ophthalmology Research Group (GIMSO), Zaragoza, Spain.,Department of Surgery, Obstetrics and Gynecology, University of Zaragoza, Spain
| | - Galadriel Giménez
- Ophthalmology Department, Nuestra Señora de Gracia Hospital, Zaragoza, Spain.,Aragon Health Research Institute (IIS Aragón), Miguel Servet Ophthalmology Research Group (GIMSO), Zaragoza, Spain.,Department of Surgery, Obstetrics and Gynecology, University of Zaragoza, Spain
| | - Vicente Polo
- Ophthalmology Department, Nuestra Señora de Gracia Hospital, Zaragoza, Spain.,Aragon Health Research Institute (IIS Aragón), Miguel Servet Ophthalmology Research Group (GIMSO), Zaragoza, Spain.,Department of Surgery, Obstetrics and Gynecology, University of Zaragoza, Spain.,Biotech Vision SLP, Spin-off Company, University of Zaragoza, Spain
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20
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Karayilan M, Clamen L, Becker ML. Polymeric Materials for Eye Surface and Intraocular Applications. Biomacromolecules 2021; 22:223-261. [PMID: 33405900 DOI: 10.1021/acs.biomac.0c01525] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Ocular applications of polymeric materials have been widely investigated for medical diagnostics, treatment, and vision improvement. The human eye is a vital organ that connects us to the outside world so when the eye is injured, infected, or impaired, it needs immediate medical treatment to maintain clear vision and quality of life. Moreover, several essential parts of the eye lose their functions upon aging, causing diminished vision. Modern polymer science and polymeric materials offer various alternatives, such as corneal and scleral implants, artificial ocular lenses, and vitreous substitutes, to replace the damaged parts of the eye. In addition to the use of polymers for medical treatment, polymeric contact lenses can provide not only vision correction, but they can also be used as wearable electronics. In this Review, we highlight the evolution of polymeric materials for specific ocular applications such as intraocular lenses and current state-of-the-art polymeric systems with unique properties for contact lens, corneal, scleral, and vitreous body applications. We organize this Review paper by following the path of light as it travels through the eye. Starting from the outside of the eye (contact lenses), we move onto the eye's surface (cornea and sclera) and conclude with intraocular applications (intraocular lens and vitreous body) of mostly synthetic polymers and several biopolymers. Initially, we briefly describe the anatomy and physiology of the eye as a reminder of the eye parts and their functions. The rest of the Review provides an overview of recent advancements in next-generation contact lenses and contact lens sensors, corneal and scleral implants, solid and injectable intraocular lenses, and artificial vitreous body. Current limitations for future improvements are also briefly discussed.
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Affiliation(s)
- Metin Karayilan
- Department of Chemistry, Duke University, Durham, North Carolina 27708, United States
| | - Liane Clamen
- Adaptilens, LLC, Boston, Massachusetts 02467, United States
| | - Matthew L Becker
- Department of Chemistry, Duke University, Durham, North Carolina 27708, United States.,Mechanical Engineering and Materials Science, Orthopaedic Surgery, and Biomedical Engineering, Duke University, Durham, North Carolina 27708, United States
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21
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Williams RL, Wong D. Ophthalmic Biomaterials. Biomed Mater 2021. [DOI: 10.1007/978-3-030-49206-9_15] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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22
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Soleymani Eil Bakhtiari S, Bakhsheshi‐Rad HR, Karbasi S, Tavakoli M, Hassanzadeh Tabrizi SA, Ismail AF, Seifalian A, RamaKrishna S, Berto F. Poly(methyl methacrylate) bone cement, its rise, growth, downfall and future. POLYM INT 2020. [DOI: 10.1002/pi.6136] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Sanaz Soleymani Eil Bakhtiari
- Advanced Materials Research Center, Department of Materials Engineering Najafabad Branch, Islamic Azad University Najafabad Iran
| | - Hamid Reza Bakhsheshi‐Rad
- Advanced Materials Research Center, Department of Materials Engineering Najafabad Branch, Islamic Azad University Najafabad Iran
| | - Saeed Karbasi
- Biomaterials and Tissue Engineering Department, School of Advanced Technologies in Medicine Isfahan University of Medical Sciences Isfahan 81746‐73461 Iran
| | - Mohamadreza Tavakoli
- Department of Materials Engineering Isfahan University of Technology Isfahan 84156‐83111 Iran
| | - Sayed Ali Hassanzadeh Tabrizi
- Advanced Materials Research Center, Department of Materials Engineering Najafabad Branch, Islamic Azad University Najafabad Iran
| | - Ahmad Fauzi Ismail
- Advanced Membrane Technology Research Center (AMTEC) Universiti Teknologi Malaysia Skudai, Johor Bahru Johor 81310 Malaysia
| | - Alexander Seifalian
- Nanotechnology and Regenerative Medicine Commercialisation Centre (NanoRegMed Ltd) London Biosciences Innovation Centre 2 Royal College Street London NW1 0NH U.K
| | - Seeram RamaKrishna
- Department of Mechanical Engineering National University of Singapore 9 Engineering Drive 1 Singapore 117576 Singapore
| | - Filippo Berto
- Department of Mechanical and Industrial Engineering Norwegian University of Science and Technology 7491 Trondheim Norway
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23
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Mast Cell Biology and Linkages for Non-clonal Mast Cell Activation and Autoimmune/Inflammatory Syndrome Induced by Adjuvants. ACTA ACUST UNITED AC 2020. [DOI: 10.1007/s42399-020-00494-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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24
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Kwon S, Kim SH, Khang D, Lee JY. Potential Therapeutic Usage of Nanomedicine for Glaucoma Treatment. Int J Nanomedicine 2020; 15:5745-5765. [PMID: 32821099 PMCID: PMC7418176 DOI: 10.2147/ijn.s254792] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Accepted: 06/05/2020] [Indexed: 12/20/2022] Open
Abstract
Glaucoma is a group of diseases characterized by progressive degeneration of retinal ganglion cells, leading to irreversible blindness. Currently, intraocular pressure reduction is the only established treatment available for glaucoma. With this treatment, the progression of the disease can only be delayed and there is no recovery. In addition, the commercially available eye drops have the disadvantage of low compliance and short therapeutic time, while glaucoma surgery always has the risk of failure due to wound fibrosis. Nanotechnology can overcome the limitations of the current treatment through the encapsulation and conjugation of drugs used for lowering intraocular pressure and antifibrotic agents using biodegradable or biocompatible nanoparticles for the sustained release of the drugs to protect the damaged ocular cells. Furthermore, using nanotechnology, treatment can be administered in various forms, including eye drops, contact lens, and ocular inserts, according to the convenience of the patients. Despite the promising results of delaying the progression of glaucoma, the regeneration of damaged ocular cells, including trabecular meshwork and retinal ganglion cells, is another critical hurdle to overcome. Bone marrow-derived mesenchymal stem cells and Müller glia cells can secrete neurogenic factors that trigger the regeneration of associated cells, including trabecular meshwork and retinal ganglion cells. In conclusion, this review highlights the potential therapeutic applications of nanotechnology- and stem cell-based methods that can be employed for the protection and regeneration of ocular cells.
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Affiliation(s)
- Song Kwon
- Lee Gil Ya Cancer and Diabetes Institute, Gachon University, Incheon 21999, South Korea
| | - Sung Hyun Kim
- Department of Ophthalmology, Gil Medical Center, Gachon University, College of Medicine, Incheon 21565, South Korea
| | - Dongwoo Khang
- Lee Gil Ya Cancer and Diabetes Institute, Gachon University, Incheon 21999, South Korea.,Department of Gachon Advanced Institute for Health Science & Technology (GAIHST), Gachon University, Incheon 21999, South Korea.,Department of Physiology, School of Medicine, Gachon University, Incheon 21999, South Korea
| | - Jong Yeon Lee
- Department of Ophthalmology, Gil Medical Center, Gachon University, College of Medicine, Incheon 21565, South Korea
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25
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Ham J, Kim Y, An T, Kang S, Ha C, Wufue M, Kim Y, Jeon B, Kim S, Kim J, Choi TH, Seo JH, Kim DW, Park JU, Lee Y. Covalently Grafted 2-Methacryloyloxyethyl Phosphorylcholine Networks Inhibit Fibrous Capsule Formation around Silicone Breast Implants in a Porcine Model. ACS APPLIED MATERIALS & INTERFACES 2020; 12:30198-30212. [PMID: 32574031 DOI: 10.1021/acsami.0c07629] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The surface of human silicone breast implants is covalently grafted at a high density with a 2-methacryloyloxyethyl phosphorylcholine (MPC)-based polymer. Addition of cross-linkers is essential for enhancing the density and mechanical durability of the MPC graft. The MPC graft strongly inhibits not only adsorption but also the conformational deformation of fibrinogen, resulting in the exposure of a buried amino acid sequence, γ377-395, which is recognized by inflammatory cells. Furthermore, the numbers of adhered macrophages and the amounts of released cytokines (MIP-1α, MIP-1β, IL-8, TNFα, IL-1α, IL-1β, and IL-10) are dramatically decreased when the MPC network is introduced at a high density on the silicone surface (cross-linked PMPC-silicone). We insert the MPC-grafted human silicone breast implants into Yorkshire pigs to analyze the in vivo effect of the MPC graft on the capsular formation around the implants. After 6 month implantation, marked reductions of inflammatory cell recruitment, inflammatory-related proteins (TGF-β and myeloperoxidase), a myoblast marker (α-smooth muscle actin), vascularity-related factors (blood vessels and VEGF), and, most importantly, capsular thickness are observed on the cross-linked PMPC-silicone. We propose a mechanism of the MPC grafting effect on fibrous capsular formation around silicone implants on the basis of the in vitro and in vivo results.
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Affiliation(s)
- Jiyeon Ham
- Department of Chemistry, College of Natural Sciences, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Youngmin Kim
- Interdisciplinary Program in Stem Cell Biology, College of Medicine, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea
- Department of Plastic and Reconstructive Surgery, Institute of Human-Environment Interface Biology, College of Medicine, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea
| | - Taeyang An
- Department of Chemistry, College of Natural Sciences, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Sunah Kang
- Department of Chemistry, College of Natural Sciences, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Cheolmin Ha
- Department of Plastic and Reconstructive Surgery, Institute of Human-Environment Interface Biology, College of Medicine, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea
| | - Maierdanjiang Wufue
- Department of Plastic and Reconstructive Surgery, Institute of Human-Environment Interface Biology, College of Medicine, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea
| | - Yumin Kim
- Department of Chemistry, College of Natural Sciences, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Byoungjun Jeon
- Interdisciplinary Program in Bioengineering, College of Engineering, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea
| | - Seulah Kim
- Department of Chemistry, College of Natural Sciences, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Jungah Kim
- Department of Chemistry, College of Natural Sciences, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Tae Hyun Choi
- Department of Plastic and Reconstructive Surgery, Institute of Human-Environment Interface Biology, College of Medicine, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea
| | - Ji-Hun Seo
- Department of Materials Science and Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Dae Woo Kim
- Department of Otolaryngology-Head and Neck Surgery, Seoul National University Boramae Medical Center, 5 Gil 20, Boramae-ro, Dongjak-gu, Seoul 07061, Republic of Korea
| | - Ji-Ung Park
- Department of Plastic and Reconstructive Surgery, Seoul National University Boramae Hospital, 5 Gil 20, Boramae-ro, Dongjak-gu, Seoul 07061, Republic of Korea
| | - Yan Lee
- Department of Chemistry, College of Natural Sciences, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul 08826, Republic of Korea
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NANOCOMPOSITES BASED ON POLYURETHANE MATRIX AND 1,2-PROPANEDIOLISOBUTYL-POSS: STRUCTURE AND MORPHOLOGICAL PECULIARITIES. Polym J 2020. [DOI: 10.15407/polymerj.42.02.085] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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27
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28
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Vales TP, Jee JP, Lee WY, Cho S, Lee GM, Kim HJ, Kim JS. Development of Poly(2-Methacryloyloxyethyl Phosphorylcholine)-Functionalized Hydrogels for Reducing Protein and Bacterial Adsorption. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E943. [PMID: 32093241 PMCID: PMC7079665 DOI: 10.3390/ma13040943] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Revised: 02/13/2020] [Accepted: 02/19/2020] [Indexed: 01/25/2023]
Abstract
A series of hydrogels with intrinsic antifouling properties was prepared via surface-functionalization of poly(2-hydroxyethyl methacrylate) [p(HEMA)]-based hydrogels with the biomembrane-mimicking zwitterionic polymer, poly(2-methacryloyloxyethyl phosphorylcholine) [p(MPC)]. The p(MPC)-modified hydrogels have enhanced surface wettability, high water content retention (61.0%-68.3%), and good transmittance (>90%). Notably, the presence of zwitterionic MPC moieties at the hydrogel surfaces lowered the adsorption of proteins such as lysozyme and bovine serum albumin (BSA) by 73%-74% and 59%-66%, respectively, and reduced bacterial adsorption by approximately 10%-73% relative to the unmodified control. The anti-biofouling properties of the p(MPC)-functionalized hydrogels are largely attributed to the dense hydration layer formed at the hydrogel surfaces by the zwitterionic moieties. Overall, the results demonstrate that biocompatible and antifouling hydrogels based on p(HEMA)-p(MPC) structures have promising potential for application in biomedical materials.
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Affiliation(s)
- Temmy Pegarro Vales
- Department of Chemistry, Chosun University, Gwangju 501-759, Korea; (T.P.V.); (H.-J.K.)
- Department of Natural Sciences, Caraga State University, Butuan City 8600, Philippines
| | - Jun-Pil Jee
- College of Pharmacy, Chosun University, Gwangju 501-759, Korea; (J.-P.J.); (W.Y.L.)
| | - Won Young Lee
- College of Pharmacy, Chosun University, Gwangju 501-759, Korea; (J.-P.J.); (W.Y.L.)
| | - Sung Cho
- Department of Chemistry, Chonnam National University, Gwangju 61186, Korea;
| | - Gye Myung Lee
- Department of Carbon Materials, Chosun University, Gwangju 61452, Korea;
| | - Ho-Joong Kim
- Department of Chemistry, Chosun University, Gwangju 501-759, Korea; (T.P.V.); (H.-J.K.)
- Department of Carbon Materials, Chosun University, Gwangju 61452, Korea;
| | - Jung Suk Kim
- Department of Orthopaedic Surgery, Graduate School, College of Medicine, Kyung Hee University, Seoul 02447, Korea
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29
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Ferrag C, Abdinejad M, Kerman K. Synthesis of a polyacrylamide hydrogel using CO2 at room temperature. CAN J CHEM 2020. [DOI: 10.1139/cjc-2019-0337] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Carbon dioxide (CO2) is an environmentally harmful “greenhouse gas” that is present in abundant quantities in the earth’s atmosphere. Thus, the sequestration and conversion of CO2 to value-added organic chemicals is of environmental and economical importance. In this proof-of-concept study, amine groups of acrylamide compounds were found to react with CO2 under ambient conditions to form a polyacrylamide hydrogel. This composite was characterized using scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM), Fourier-transform infrared spectroscopy (FTIR) and electrospray ionization mass spectrometry (ESI–MS), which confirmed successful synthesis and demonstrated all characteristics representative of a typical hydrogel material. Rheology analyses further proved the formation of the hydrogel, as well as its self-healing nature. The novel approach proposed in this work can potentially be used in the construction of versatile amine-based gel materials for efficient CO2 utilization applications.
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Affiliation(s)
- Celia Ferrag
- Department of Chemistry, University of Toronto, Toronto, ON M5S 3H6, Canada
| | - Maryam Abdinejad
- Department of Physical and Environmental Sciences, University of Toronto Scarborough, Toronto, ON M1C 1A4, Canada
| | - Kagan Kerman
- Department of Chemistry, University of Toronto, Toronto, ON M5S 3H6, Canada
- Department of Physical and Environmental Sciences, University of Toronto Scarborough, Toronto, ON M1C 1A4, Canada
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30
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Kang S, Kim J, Kim S, Wufuer M, Park S, Kim Y, Choi D, Jin X, Kim Y, Huang Y, Jeon B, Choi TH, Park JU, Lee Y. Efficient reduction of fibrous capsule formation around silicone breast implants densely grafted with 2-methacryloyloxyethyl phosphorylcholine (MPC) polymers by heat-induced polymerization. Biomater Sci 2020; 8:1580-1591. [DOI: 10.1039/c9bm01802f] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
This article presents the efficacy of heat-induced MPC-grafting against excessive fibrous capsule formation and related inflammation in tissues surrounding silicone breast implants inserted in a pig model.
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31
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Surface properties of commercially available hydrophobic acrylic intraocular lenses: Comparative study. J Cataract Refract Surg 2019; 45:1330-1334. [DOI: 10.1016/j.jcrs.2019.04.011] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Revised: 03/26/2019] [Accepted: 04/12/2019] [Indexed: 12/14/2022]
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32
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Tummala GK, Lopes VR, Mihranyan A, Ferraz N. Biocompatibility of Nanocellulose-Reinforced PVA Hydrogel with Human Corneal Epithelial Cells for Ophthalmic Applications. J Funct Biomater 2019; 10:E35. [PMID: 31375008 PMCID: PMC6787653 DOI: 10.3390/jfb10030035] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Revised: 07/28/2019] [Accepted: 07/30/2019] [Indexed: 11/16/2022] Open
Abstract
Transparent composite hydrogel in the form of a contact lens made from poly(vinyl alcohol) (PVA) and cellulose nanocrystals (CNCs) was subjected to in vitro biocompatibility evaluation with human corneal epithelial cells (HCE-2 cells). The cell response to direct contact with the hydrogels was investigated by placing the samples on top of confluent cell layers and evaluating cell viability, morphology, and cell layer integrity subsequent to 24 h culture and removal of the hydrogels. To further characterize the lens-cell interactions, HCE-2 cells were seeded on the hydrogels, with and without simulated tear fluid (STF) pre-conditioning, and cell viability and morphology were evaluated. Furthermore, protein adsorption on the hydrogel surface was investigated by incubating the materials with STF, followed by protein elution and quantification. The hydrogel material was found to have affinity towards protein adsorption, most probably due to the interactions between the positively charged lysozyme and the negatively charged CNCs embedded in the PVA matrix. The direct contact experiment demonstrated that the physical presence of the lenses did not affect corneal epithelial cell monolayers in terms of integrity nor cell metabolic activity. Moreover, it was found that viable corneal cells adhered to the hydrogel, showing the typical morphology of epithelial cells and that such response was not influenced by the STF pre-conditioning of the hydrogel surface. The results of the study confirm that PVA-CNC hydrogel is a promising ophthalmic biomaterial, motivating future in vitro and in vivo biocompatibility studies.
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Affiliation(s)
- Gopi Krishna Tummala
- Nanotechnology and Functional Materials, Department of Engineering Sciences, Uppsala University, Box 534, 751 21 Uppsala, Sweden
| | - Viviana R Lopes
- Nanotechnology and Functional Materials, Department of Engineering Sciences, Uppsala University, Box 534, 751 21 Uppsala, Sweden
| | - Albert Mihranyan
- Nanotechnology and Functional Materials, Department of Engineering Sciences, Uppsala University, Box 534, 751 21 Uppsala, Sweden
| | - Natalia Ferraz
- Nanotechnology and Functional Materials, Department of Engineering Sciences, Uppsala University, Box 534, 751 21 Uppsala, Sweden.
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Obiweluozor FO, Tiwari AP, Lee JH, Batgerel T, Kim JY, Lee D, Park CH, Kim CS. Thromboresistant semi-IPN hydrogel coating: Towards improvement of the hemocompatibility/biocompatibility of metallic stent implants. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 99:1274-1288. [DOI: 10.1016/j.msec.2019.02.054] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Revised: 01/29/2019] [Accepted: 02/15/2019] [Indexed: 02/09/2023]
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Desbrieres J, Peptu C, Ochiuz L, Savin C, Popa M, Vasiliu S. Application of Chitosan-Based Formulations in Controlled Drug Delivery. SUSTAINABLE AGRICULTURE REVIEWS 36 2019. [DOI: 10.1007/978-3-030-16581-9_7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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35
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Drevon-Gaillot E. Ocular Medical Devices: Histologic Technique and Histopathologic Evaluation of the Biocompatibility and Performance. Toxicol Pathol 2018; 47:418-425. [DOI: 10.1177/0192623318813533] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Ocular medical devices (MDs) represent a very wide and promising field of human ophthalmology. In preclinical studies evaluating the safety and/or performance of these ocular MDs, the choice of histologic technique and the focus of the histopathologic evaluation method should take into consideration the following aspects: the specific guidelines possibly associated with the MD or combination product, the ocular compartment in contact with the MD and its specificities, and last the nature of the biomaterial used in the MD. Following a brief overview of animal models, this short review will present the different types of ocular MDs and will present the specificities of the histologic technique and the histopathologic evaluation related to ocular MDs.
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Xue K, Wang X, Yong PW, Young DJ, Wu YL, Li Z, Loh XJ. Hydrogels as Emerging Materials for Translational Biomedicine. ADVANCED THERAPEUTICS 2018. [DOI: 10.1002/adtp.201800088] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Kun Xue
- Institute of Materials Research and Engineering; Agency for Science,; Technology and Research; 2 Fusionopolis Way, #08-03 Innovis Singapore 138634 Singapore
| | - Xiaoyuan Wang
- Fujian Provincial Key Laboratory of Innovative Drug Target Research and State Key Laboratory of Cellular Stress Biology School of Pharmaceutical Sciences; Xiamen University; Xiamen 361102 China
| | - Pei Wern Yong
- Department of Materials Science and Engineering; National University of Singapore; 9 Engineering Drive 1 Singapore 117575 Singapore
| | - David James Young
- Faculty of Science; Health, Education and Engineering; University of the Sunshine Coast; Maroochydore Queensland 4558 Australia
| | - Yun-Long Wu
- Fujian Provincial Key Laboratory of Innovative Drug Target Research and State Key Laboratory of Cellular Stress Biology School of Pharmaceutical Sciences; Xiamen University; Xiamen 361102 China
| | - Zibiao Li
- Institute of Materials Research and Engineering; Agency for Science,; Technology and Research; 2 Fusionopolis Way, #08-03 Innovis Singapore 138634 Singapore
| | - Xian Jun Loh
- Institute of Materials Research and Engineering; Agency for Science,; Technology and Research; 2 Fusionopolis Way, #08-03 Innovis Singapore 138634 Singapore
- Department of Materials Science and Engineering; National University of Singapore; 9 Engineering Drive 1 Singapore 117575 Singapore
- Singapore Eye Research Institute; 11 Third Hospital Avenue Singapore 168751 Singapore
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Boyadzhieva S, Fischer SCL, Lösch S, Rutz A, Arzt E, Kruttwig K. Thin Film Composite Silicon Elastomers for Cell Culture and Skin Applications: Manufacturing and Characterization. J Vis Exp 2018. [PMID: 30035765 PMCID: PMC6102035 DOI: 10.3791/57573] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
In this protocol, we present methods to fabricate thin elastomer composite films for advanced cell culture applications and for the development of skin adhesives. Two different poly-(dimethyl siloxanes) (PDMS and soft skin adhesive (SSA)), have been used for in depth investigation of biological effects and adhesive characteristics. The composite films consist of a flexible backing layer and an adhesive top coating. Both layers have been manufactured by doctor blade application technique. In the present investigation, the adhesive behavior of the composite films has been investigated as a function of the layer thickness or a variation of the Young's modulus of the top layer. The Young's modulus of PDMS has been changed by varying the base to crosslinker mixing ratio. In addition, the thickness of SSA films has been varied from approx. 16 µm to approx. 320 µm. Scanning electron microscopy (SEM) and optical microscopy have been used for thickness measurements. The adhesive properties of elastomer films depend strongly on the film thickness, the Young's modulus of the polymers and surface characteristics. Therefore, normal adhesion of these films on glass substrates exhibiting smooth and rough surfaces has been investigated. Pull-off stress and work of separation are dependent on the mixing ratio of silicone elastomers. Additionally, the thickness of the soft skin adhesive placed on top of a supportive backing layer has been varied in order to produce patches for skin applications. Cytotoxicity, proliferation and cellular adhesion of L929 murine fibroblasts on PDMS films (mixing ratio 10:1) and SSA films (mixing ratio 50:50) have been conducted. We have shown here, for the first time, the side by side comparison of thin composite films manufactured of both polymers and present the investigation of their biological- and adhesive properties.
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Affiliation(s)
- Silviya Boyadzhieva
- INM - Leibniz Institute for New Materials; Department of Materials Science and Engineering, Saarland University
| | - Sarah C L Fischer
- INM - Leibniz Institute for New Materials; Department of Materials Science and Engineering, Saarland University
| | - Svenja Lösch
- INM - Leibniz Institute for New Materials; University of Applied Sciences Kaiserslautern
| | | | - Eduard Arzt
- INM - Leibniz Institute for New Materials; Department of Materials Science and Engineering, Saarland University
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Peng CH, Chuang JH, Wang ML, Jhan YY, Chien KH, Chung YC, Hung KH, Chang CC, Lee CK, Tseng WL, Hwang DK, Hsu CH, Lin TC, Chiou SH, Chen SJ. Laminin modification subretinal bio-scaffold remodels retinal pigment epithelium-driven microenvironment in vitro and in vivo. Oncotarget 2018; 7:64631-64648. [PMID: 27564261 PMCID: PMC5323104 DOI: 10.18632/oncotarget.11502] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Accepted: 07/19/2016] [Indexed: 11/25/2022] Open
Abstract
Advanced age-related macular degeneration (AMD) may lead to geographic atrophy or fibrovascular scar at macular, dysfunctional retinal microenvironment, and cause profound visual loss. Recent clinical trials have implied the potential application of pluripotent cell-differentiated retinal pigment epithelial cells (dRPEs) and membranous scaffolds implantation in repairing the degenerated retina in AMD. However, the efficacy of implanted membrane in immobilization and supporting the viability and functions of dRPEs, as well as maintaining the retinal microenvironment is still unclear. Herein we generated a biomimetic scaffold mimicking subretinal Bruch's basement from plasma modified polydimethylsiloxane (PDMS) sheet with laminin coating (PDMS-PmL), and investigated its potential functions to provide a subretinal environment for dRPE-monolayer grown on it. Firstly, compared to non-modified PDMS, PDMS-PmL enhanced the attachment, proliferation, polarization, and maturation of dRPEs. Second, PDMS-PmL increased the polarized tight junction, PEDF secretion, melanosome pigment deposit, and phagocytotic-ability of dRPEs. Third, PDMS-PmL was able to carry a dRPEs/photoreceptor-precursors multilayer retina tissue. Finally, the in vivo subretinal implantation of PDMS-PmL in porcine eyes showed well-biocompatibility up to 2-year follow-up. Notably, multifocal ERGs at 2-year follow-up revealed well preservation of macular function in PDMS-PmL, but not PDMS, transplanted porcine eyes. Trophic PEDF secretion of macular retina in PDMS-PmL group was also maintained to preserve retinal microenvironment in PDMS-PmL eyes at 2 year. Taken together, these data indicated that PDMS-PmL is able to sustain the physiological morphology and functions of polarized RPE monolayer, suggesting its potential of rescuing macular degeneration in vivo.
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Affiliation(s)
- Chi-Hsien Peng
- Department of Ophthalmology, Taipei Veterans General Hospital, Taipei, Taiwan.,Department of Ophthalmology, Shin Kong Wu Ho-Su Memorial Hospital & Fu-Jen Catholic University, Taipei Taiwan.,Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Jen-Hua Chuang
- Department of Medical Research, Taipei Veterans General Hospital, Taipei, Taiwan.,Institute of Pharmacology, National Yang-Ming University, Taipei, Taiwan
| | - Mong-Lien Wang
- Department of Medical Research, Taipei Veterans General Hospital, Taipei, Taiwan.,School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Yong-Yu Jhan
- Department of Ophthalmology, Taipei Veterans General Hospital, Taipei, Taiwan.,Institute of Pharmacology, National Yang-Ming University, Taipei, Taiwan
| | - Ke-Hung Chien
- Department of Ophthalmology, Tri-Service General Hospital & National Defense Medical Center, Taipei, Taiwan.,Institute of Pharmacology, National Yang-Ming University, Taipei, Taiwan
| | - Yu-Chien Chung
- Department of Ophthalmology, Taipei Veterans General Hospital, Taipei, Taiwan.,School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Kuo-Hsuan Hung
- Department of Ophthalmology, Taipei Veterans General Hospital, Taipei, Taiwan.,Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan.,School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Chia-Ching Chang
- Department of Biological Science and Technology, National Chiao Tung University, Hsinchu, Taipei, Taiwan
| | - Chao-Kuei Lee
- Department of Photonics, National Sun Yat-sen University, Kaohsiung, Taiwan
| | - Wei-Lien Tseng
- Department of Medical Research, Taipei Veterans General Hospital, Taipei, Taiwan.,Institute of Pharmacology, National Yang-Ming University, Taipei, Taiwan
| | - De-Kuang Hwang
- Department of Ophthalmology, Taipei Veterans General Hospital, Taipei, Taiwan.,School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | | | - Tai-Chi Lin
- Department of Ophthalmology, Taipei Veterans General Hospital, Taipei, Taiwan.,Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Shih-Hwa Chiou
- Department of Ophthalmology, Taipei Veterans General Hospital, Taipei, Taiwan.,Department of Medical Research, Taipei Veterans General Hospital, Taipei, Taiwan.,Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan.,Institute of Pharmacology, National Yang-Ming University, Taipei, Taiwan.,School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Shih-Jen Chen
- Department of Ophthalmology, Taipei Veterans General Hospital, Taipei, Taiwan.,School of Medicine, National Yang-Ming University, Taipei, Taiwan
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Souery WN, Bishop CJ. Clinically advancing and promising polymer-based therapeutics. Acta Biomater 2018; 67:1-20. [PMID: 29246651 DOI: 10.1016/j.actbio.2017.11.044] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2017] [Revised: 11/11/2017] [Accepted: 11/27/2017] [Indexed: 12/11/2022]
Abstract
In this review article, we will examine the history of polymers and their evolution from provisional World War II materials to medical therapeutics. To provide a comprehensive look at the current state of polymer-based therapeutics, we will classify technologies according to targeted areas of interest, including central nervous system-based and intraocular-, gastrointestinal-, cardiovascular-, dermal-, reproductive-, skeletal-, and neoplastic-based systems. Within each of these areas, we will consider several examples of novel, clinically available polymer-based therapeutics; in addition, this review will also include a discussion of developing therapies, ranging from the in vivo to clinical trial stage, for each targeted area of treatment. Finally, we will emphasize areas of patient care in need of more effective, accessible, and targeted treatment approaches where polymer-based therapeutics may offer potential solutions.
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Affiliation(s)
- Whitney N Souery
- Department of Biomedical Engineering, Texas A&M University, Emerging Technologies Building, 101 Bizzell St., College Station, TX 77843, USA
| | - Corey J Bishop
- Department of Biomedical Engineering, Texas A&M University, Emerging Technologies Building, 101 Bizzell St., College Station, TX 77843, USA.
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40
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The role of nanomaterials in cell delivery systems. Med Mol Morphol 2017; 51:1-12. [PMID: 29170827 DOI: 10.1007/s00795-017-0173-8] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Accepted: 11/10/2017] [Indexed: 12/21/2022]
Abstract
In more than one decade, cell transplantation has created an important strategy to treat a wide variety of diseases characterized by tissue and cell dysfunctions. In this course of action, cell delivery to target site has been always one of the most important constraints and complications, as only a small proportion of the cells are housed in the target sites. Nanotechnology and nanoscale biomaterials have been helpful for cell transplantation in various fields of regenerative medicine including diagnosis, delivery systems for the cell, drug or gene, and cells protection system. In this study, the basic concepts and recently studied aspects of cell delivery systems based on nanoscale biomaterials for transplantation and clinical applications are highlighted. Nanomaterials may be used in combination with cell therapy to control the release of drugs or special factors of engineered cells after transplantation.
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41
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Kean CO, Brown RJ, Chapman J. The role of biomaterials in the treatment of meniscal tears. PeerJ 2017; 5:e4076. [PMID: 29158995 PMCID: PMC5695244 DOI: 10.7717/peerj.4076] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2017] [Accepted: 10/31/2017] [Indexed: 12/15/2022] Open
Abstract
Extensive investigations over the recent decades have established the anatomical, biomechanical and functional importance of the meniscus in the knee joint. As a functioning part of the joint, it serves to prevent the deterioration of articular cartilage and subsequent osteoarthritis. To this end, meniscus repair and regeneration is of particular interest from the biomaterial, bioengineering and orthopaedic research community. Even though meniscal research is previously of a considerable volume, the research community with evolving material science, biology and medical advances are all pushing toward emerging novel solutions and approaches to the successful treatment of meniscal difficulties. This review presents a tactical evaluation of the latest biomaterials, experiments to simulate meniscal tears and the state-of-the-art materials and strategies currently used to treat tears.
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Affiliation(s)
- Crystal O. Kean
- School of Health, Medical and Applied Sciences, Central Queensland University, Rockhampton, Queensland, Australia
| | | | - James Chapman
- School of Health, Medical and Applied Sciences, Central Queensland University, Rockhampton, Queensland, Australia
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Van De Walle E, Van Nieuwenhove I, De Vos W, Declercq H, Dubruel P, Van Vlierberghe S. Cell response of flexible PMMA-derivatives: supremacy of surface chemistry over substrate stiffness. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2017; 28:183. [PMID: 29027051 DOI: 10.1007/s10856-017-5994-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Accepted: 09/21/2017] [Indexed: 06/07/2023]
Abstract
The present work reports on the development of a range of poly(methyl methacrylate)/poly(ethylene glycol) (PMMAPEG)-based materials, characterized by different elasticity moduli in order to study the influence of the substrate's mechanical properties on the response of human umbilical vein endothelial cells (HUVECs). To render the selected materials cell-interactive, a polydopamine (PDA)/gelatin type B (Gel B) coating was applied. Prior to the in vitro assay, the success of the PDA and Gel B immobilization onto the materials was confirmed using X-ray photoelectron spectroscopy (XPS) as reflected by the nitrogen percentages measured for the materials after PDA and Gel B deposition. Tensile tests showed that materials with E-moduli ranging from 37 to 1542 MPa could be obtained by varying the ratio between PMMA and PEG as well as the PEG molecular weight and its functionality (i.e. mono-methacrylate vs. di-methacrylate). The results after 1 day of cell contact suggested a preferred HUVECs cell growth onto more rigid materials. After 1 week, the material with the lowest E-modulus of 37 MPa showed lower cell densities compared to the other materials. No clear correlation could be observed between the number of focal adhesion points and the substrate stiffness. Although minor differences were found, these were not statistically significant. This last conclusion again highlights the universal character of the PDA/Gel B modification. The present work could thus be valuable for the development of a range of cell substrates requiring different mechanical properties in line with the envisaged application while the cell response should ideally remain unaffected.
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Affiliation(s)
- Elke Van De Walle
- Polymer Chemistry & Biomaterials Group, Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281, S4-Bis, 9000, Ghent, Belgium
| | - Ine Van Nieuwenhove
- Polymer Chemistry & Biomaterials Group, Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281, S4-Bis, 9000, Ghent, Belgium
| | - Winnok De Vos
- Department of Chemistry, University of Antwerp, Universiteitsplein 1, BE-2610, Wilrijk-Antwerp, Belgium
- Department of Molecular Biotechnology, Ghent University, Coupure links 653, 9000, Ghent, Belgium
| | - Heidi Declercq
- Tissue Engineering Group, Department of Basic Medical Sciences, Ghent University, De Pintelaan 185 6B3, Ghent, B-9000, Belgium
| | - Peter Dubruel
- Polymer Chemistry & Biomaterials Group, Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281, S4-Bis, 9000, Ghent, Belgium.
| | - Sandra Van Vlierberghe
- Polymer Chemistry & Biomaterials Group, Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281, S4-Bis, 9000, Ghent, Belgium.
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Optically transparent poly(methyl methacrylate) with largely enhanced mechanical and shape memory properties via in-situ formation of polylactide stereocomplex in the matrix. POLYMER 2017. [DOI: 10.1016/j.polymer.2017.08.047] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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44
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Zhao C, Zhang C, Kang H, Xia Y, Sui K, Liu R. Gelation of Na-alginate aqueous solution: A study of sodium ion dynamics via NMR relaxometry. Carbohydr Polym 2017; 169:206-212. [DOI: 10.1016/j.carbpol.2017.03.099] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2017] [Revised: 03/30/2017] [Accepted: 03/30/2017] [Indexed: 11/26/2022]
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45
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Bisht R, Jaiswal JK, Oliver VF, Eurtivong C, Reynisson J, Rupenthal ID. Preparation and evaluation of PLGA nanoparticle-loaded biodegradable light-responsive injectable implants as a promising platform for intravitreal drug delivery. J Drug Deliv Sci Technol 2017. [DOI: 10.1016/j.jddst.2017.06.006] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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46
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McClure SR, Wang C. A Preliminary Field Trial Evaluating the Efficacy of 4% Polyacrylamide Hydrogel in Horses With Osteoarthritis. J Equine Vet Sci 2017. [DOI: 10.1016/j.jevs.2017.02.019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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47
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Bisht R, Mandal A, Jaiswal JK, Rupenthal ID. Nanocarrier mediated retinal drug delivery: overcoming ocular barriers to treat posterior eye diseases. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2017; 10. [DOI: 10.1002/wnan.1473] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2017] [Revised: 03/05/2017] [Accepted: 03/11/2017] [Indexed: 12/13/2022]
Affiliation(s)
- Rohit Bisht
- Buchanan Ocular Therapeutics Unit (BOTU), Department of Ophthalmology, New Zealand National Eye Center, Faculty of Medical and Health Sciences; University of Auckland; Auckland New Zealand
| | - Abhirup Mandal
- Division of Pharmaceutical Sciences, School of Pharmacy; University of Missouri-Kansas City; Kansas City MO USA
| | - Jagdish K. Jaiswal
- Auckland Cancer Society Research Center, Faculty of Medical and Health Sciences; University of Auckland; Auckland New Zealand
| | - Ilva D. Rupenthal
- Buchanan Ocular Therapeutics Unit (BOTU), Department of Ophthalmology, New Zealand National Eye Center, Faculty of Medical and Health Sciences; University of Auckland; Auckland New Zealand
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48
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Bisht R, Jaiswal JK, Rupenthal ID. Nanoparticle-loaded biodegradable light-responsive in situ forming injectable implants for effective peptide delivery to the posterior segment of the eye. Med Hypotheses 2017; 103:5-9. [PMID: 28571808 DOI: 10.1016/j.mehy.2017.03.033] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Accepted: 03/30/2017] [Indexed: 10/19/2022]
Abstract
Diseases affecting the posterior segment the eye, such as age-related macular degeneration (AMD), are the leading cause of blindness worldwide. Conventional dosage forms, such as eye drops, have to surmount several elimination mechanisms and complex barriers to achieve therapeutic concentrations at the target site often resulting in low anterior segment bioavailability (ca. 2-5%) with generally none of the drug reaching posterior segment tissues. Thus, frequent intravitreal injections are currently required to treat retinal conditions which have been associated with poor patient compliance due to pain, risk of infection, hemorrhages, retinal detachment and high treatment related costs. To partially overcome these issues, ocular implants have been developed for some posterior segment indications; however, the majority require surgical implantation and removal at the end of the intended treatment period. The transparent nature of the cornea and lens render light-responsive systems an attractive strategy for the management of diseases affecting the back of the eye. Light-responsive in situ forming injectable implants (ISFIs) offer various benefits such as ease of application in a minimally invasive manner and more site specific control over drug release. Moreover, the biodegradable nature of such implants avoids the need for surgical removal after release of the payload. Incorporating drug-loaded polymeric nanoparticles (NPs) into these implants may reduce the high initial burst release from the polymeric matrix and further sustain drug release thus avoiding the need for frequent injections as well as minimizing associated side effects. However, light-responsive systems for ophthalmic application are still in their early stages of development with limited reports on their safety and effectiveness. We hypothesize that the innovative design and properties of NP-containing light-responsive ISFIs can serve as a platform for effective management of ocular diseases requiring long term treatment.
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Affiliation(s)
- Rohit Bisht
- Buchanan Ocular Therapeutics Unit, Department of Ophthalmology, New Zealand National Eye Centre, Faculty of Medical and Health Sciences, University of Auckland, Auckland 1142, New Zealand; Auckland Cancer Society Research Centre, Faculty of Medical and Health Sciences, University of Auckland, Auckland 1142, New Zealand
| | - Jagdish K Jaiswal
- Buchanan Ocular Therapeutics Unit, Department of Ophthalmology, New Zealand National Eye Centre, Faculty of Medical and Health Sciences, University of Auckland, Auckland 1142, New Zealand; Auckland Cancer Society Research Centre, Faculty of Medical and Health Sciences, University of Auckland, Auckland 1142, New Zealand
| | - Ilva D Rupenthal
- Buchanan Ocular Therapeutics Unit, Department of Ophthalmology, New Zealand National Eye Centre, Faculty of Medical and Health Sciences, University of Auckland, Auckland 1142, New Zealand; Auckland Cancer Society Research Centre, Faculty of Medical and Health Sciences, University of Auckland, Auckland 1142, New Zealand.
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49
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Dhawan U, Pan HA, Chu YH, Huang GS, Chen PC, Chen WL. Temporal Control of Osteoblast Cell Growth and Behavior Dictated by Nanotopography and Shear Stress. IEEE Trans Nanobioscience 2016; 15:704-712. [PMID: 28029616 DOI: 10.1109/tnb.2016.2605686] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Biomaterial design involves assessment of cellular response to nanotopography parameters such as shape, dimension of nanotopography features. Here, the effect of nanotopography alongside the in vivo factor, shear stress, on osteoblast cell behavior, is reported. Tantalum oxide nanodots of 50 or 100 nm diameter were engineered using anodized aluminum oxide as a template. Bare tantalum nitride coated silicon substrates were taken as control (flat). MG63 (osteoblast) cells were seeded for 72 hours on flat, 50 or 100 nm nanodots and modulation in cell morphology, cell viability and expression of integrins was studied. Cells displayed a well-extended morphology on 50 nm nanodots in contrast to an elongated morphology on 100 nm nanodots, as observed by scanning electron microscopy and immunofluorescence staining, thereby confirming the cellular response to different nanotopographies. Based on quantitative real-time polymerase chain reaction data, a greater fold change in the expression of α1 , α2 , α3 , α8 , α9 , [Formula: see text], β1 , β4 , β5 , β7 and β8 integrins was observed in cells cultured on 100 nm than on 50 nm nanodots. Moreover, in the presence of a shear stress of 2 dyne/cm2, a 52% increase in the cell viability after culturing the cells for 72 hours was observed on 100 nm nanodots as compared to 50 nm nanodots, thereby validating the effect of shear stress on cell behavior. Duration-of-culture experiments revealed 100 nm nanodots to be an ideal nanotopography choice to engineer optimized implant geometries for an ideal cell response. This study highlights the in vivo factors which need to be considered while designing nanotopographies for in vivo applications, for an ideal response as the cell-nanomaterial interface. Applications in the field of Biomedical, tissue engineering and cancer research are expected.
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Design of binary polymeric platforms containing ɩ-carrageenan and hydroxypropylcellulose for use in cataract surgery. Carbohydr Polym 2016; 154:296-304. [DOI: 10.1016/j.carbpol.2016.06.042] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Revised: 05/22/2016] [Accepted: 06/10/2016] [Indexed: 11/20/2022]
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