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Wu KY, Khan S, Liao Z, Marchand M, Tran SD. Biopolymeric Innovations in Ophthalmic Surgery: Enhancing Devices and Drug Delivery Systems. Polymers (Basel) 2024; 16:1717. [PMID: 38932068 PMCID: PMC11207407 DOI: 10.3390/polym16121717] [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: 05/01/2024] [Revised: 05/30/2024] [Accepted: 06/13/2024] [Indexed: 06/28/2024] Open
Abstract
The interface between material science and ophthalmic medicine is witnessing significant advances with the introduction of biopolymers in medical device fabrication. This review discusses the impact of biopolymers on the development of ophthalmic devices, such as intraocular lenses, stents, and various prosthetics. Biopolymers are emerging as superior alternatives due to their biocompatibility, mechanical robustness, and biodegradability, presenting an advance over traditional materials with respect to patient comfort and environmental considerations. We explore the spectrum of biopolymers used in ophthalmic devices and evaluate their physical properties, compatibility with biological tissues, and clinical performances. Specific applications in oculoplastic and orbital surgeries, hydrogel applications in ocular therapeutics, and polymeric drug delivery systems for a range of ophthalmic conditions were reviewed. We also anticipate future directions and identify challenges in the field, advocating for a collaborative approach between material science and ophthalmic practice to foster innovative, patient-focused treatments. This synthesis aims to reinforce the potential of biopolymers to improve ophthalmic device technology and enhance clinical outcomes.
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Affiliation(s)
- Kevin Y. Wu
- Department of Surgery, Division of Ophthalmology, University of Sherbrooke, Sherbrook, QC J1G 2E8, Canada; (K.Y.W.); (M.M.)
| | - Sameer Khan
- Department of Biology, Carleton University, Ottawa, ON K1S 5B6, Canada
| | - Zhuoying Liao
- Department of Biology, McMaster University, Hamilton, ON L8S 4L8, Canada
| | - Michael Marchand
- Department of Surgery, Division of Ophthalmology, University of Sherbrooke, Sherbrook, QC J1G 2E8, Canada; (K.Y.W.); (M.M.)
| | - Simon D. Tran
- Faculty of Dental Medicine and Oral Health Sciences, McGill University, Montreal, QC H3A 1G1, Canada
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2
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Wang N, Zhang C, Wu J, Zhang D, Li J, Galvbu A, Tang L, Li Y, Li H, Tan S, Wang X. Carboxymethyl chitosan and octadecylamine-coated liposome-containing WPTS: design, optimization, and evaluation. J Liposome Res 2024; 34:124-134. [PMID: 37555618 DOI: 10.1080/08982104.2023.2246057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 06/08/2023] [Accepted: 08/04/2023] [Indexed: 08/10/2023]
Abstract
Liposomes (LPs) are a delivery system for stabilizing pharmaceuticals with limited use due to their propensity to congregate and fuse. A proposed method of addressing these problems is polymer coating. In this study, the potential of octadecylamine (ODA)-coated liposomes and carboxymethyl chitosan (CMCS/ODA-LPs) for enhancing Wacao pentacyclic triterpene saponin (WPTS) transport capacity was investigated. CMCS/ODA-LPs were produced by electrostatic adsorption and thin-film hydration. Response surface methodology (RSM) was employed to enhance the process and encapsulation efficiency (EE) for optimum drug encapsulation efficiency. The synthesized WPTS-CMCS/ODA-LPs were uniformly dispersed in a circular shape, and during 14 days of storage at 4 °C, the particle size and morphology did not significantly change. Vesicle size, zeta potential, polydispersity index (PDI), and entrapment efficiency (%) were 179.1 ± 7.31 nm, -29.6 ± 1.35 mV, 0.188 ± 0.052, and 75.62 ± 0.43, respectively. The hemolysis test revealed that WPTS-CMCS/ODA-LPs were sufficiently biocompatible. Compared to WPTS-LPs, WPTS-CMCS/ODA-LPs consistently showed a much more significant cytotoxic effect on cancer cells. Early and WPTS-CMCS/ODA-LPs-induced apoptosis resulted in almost seven times more cell death than the control. Compared to physiological pH 7.3, the pH-sensitive CMCS coupled LPs increased drug release at acidic pH 6.5. These findings suggest the efficacy of pH-sensitive CMCS/ODA-LPs as a medication delivery method for WPTS.
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Affiliation(s)
- Nan Wang
- School of Chinese Meteria Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Chi Zhang
- School of Chinese Meteria Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Jiahui Wu
- School of Chinese Meteria Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Dachuan Zhang
- School of Chinese Meteria Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Junling Li
- School of Chinese Meteria Medica, Beijing University of Chinese Medicine, Beijing, China
| | - A Galvbu
- School of Chinese Meteria Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Leimengyuan Tang
- School of Chinese Meteria Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Yan Li
- School of Chinese Meteria Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Houxier Li
- School of Chinese Meteria Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Shuting Tan
- School of Chinese Meteria Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Xueyong Wang
- School of Chinese Meteria Medica, Beijing University of Chinese Medicine, Beijing, China
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3
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Xu Y, Fourniols T, Labrak Y, Préat V, Beloqui A, des Rieux A. Surface Modification of Lipid-Based Nanoparticles. ACS NANO 2022; 16:7168-7196. [PMID: 35446546 DOI: 10.1021/acsnano.2c02347] [Citation(s) in RCA: 53] [Impact Index Per Article: 26.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
There is a growing interest in the development of lipid-based nanocarriers for multiple purposes, including the recent increase of these nanocarriers as vaccine components during the COVID-19 pandemic. The number of studies that involve the surface modification of nanocarriers to improve their performance (increase the delivery of a therapeutic to its target site with less off-site accumulation) is enormous. The present review aims to provide an overview of various methods associated with lipid nanoparticle grafting, including techniques used to separate grafted nanoparticles from unbound ligands or to characterize grafted nanoparticles. We also provide a critical perspective on the usefulness and true impact of these modifications on overcoming different biological barriers, with our prediction on what to expect in the near future in this field.
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Affiliation(s)
- Yining Xu
- Advanced Drug Delivery and Biomaterials, UCLouvain, Université Catholique de Louvain, Louvain Drug Research Institute, Avenue Mounier, 73 B1.73.12, 1200 Brussels, Belgium
| | - Thibaut Fourniols
- Advanced Drug Delivery and Biomaterials, UCLouvain, Université Catholique de Louvain, Louvain Drug Research Institute, Avenue Mounier, 73 B1.73.12, 1200 Brussels, Belgium
| | - Yasmine Labrak
- Advanced Drug Delivery and Biomaterials, UCLouvain, Université Catholique de Louvain, Louvain Drug Research Institute, Avenue Mounier, 73 B1.73.12, 1200 Brussels, Belgium
- Bioanalysis and Pharmacology of Bioactive Lipids, UCLouvain, Université Catholique de Louvain, Louvain Drug Research Institute, Avenue Mounier, 72 B1.72.01, 1200 Brussels, Belgium
| | - Véronique Préat
- Advanced Drug Delivery and Biomaterials, UCLouvain, Université Catholique de Louvain, Louvain Drug Research Institute, Avenue Mounier, 73 B1.73.12, 1200 Brussels, Belgium
| | - Ana Beloqui
- Advanced Drug Delivery and Biomaterials, UCLouvain, Université Catholique de Louvain, Louvain Drug Research Institute, Avenue Mounier, 73 B1.73.12, 1200 Brussels, Belgium
| | - Anne des Rieux
- Advanced Drug Delivery and Biomaterials, UCLouvain, Université Catholique de Louvain, Louvain Drug Research Institute, Avenue Mounier, 73 B1.73.12, 1200 Brussels, Belgium
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4
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Muranov KO, Ostrovsky MA. Biochemistry of Eye Lens in the Norm and in Cataractogenesis. BIOCHEMISTRY. BIOKHIMIIA 2022; 87:106-120. [PMID: 35508906 DOI: 10.1134/s0006297922020031] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Revised: 09/30/2021] [Accepted: 09/30/2021] [Indexed: 06/14/2023]
Abstract
The absence of cellular organelles in fiber cells and very high cytoplasmic protein concentration (up to 900 mg/ml) minimize light scattering in the lens and ensure its transparency. Low oxygen concentration, powerful defense systems (antioxidants, antioxidant enzymes, chaperone-like protein alpha-crystallin, etc.) maintain lens transparency. On the other hand, the ability of crystallins to accumulate age-associated post-translational modifications, which reduce the resistance of lens proteins to oxidative stress, is an important factor contributing to the cataract formation. Here, we suggest a mechanism of cataractogenesis common for the action of different cataractogenic factors, such as age, radiation, ultraviolet light, diabetes, etc. Exposure to these factors leads to the damage and death of lens epithelium, which allows oxygen to penetrate into the lens through the gaps in the epithelial layer and cause oxidative damage to crystallins, resulting in protein denaturation, aggregation, and formation of multilamellar bodies (the main cause of lens opacification). The review discusses various approaches to the inhibition of lens opacification (cataract development), in particular, a combined use of antioxidants and compounds enhancing the chaperone-like properties of alpha-crystallin. We also discuss the paradox of high efficiency of anti-cataract drugs in laboratory settings with the lack of their clinical effect, which might be due to the late use of the drugs at the stage, when the opacification has already formed. A probable solution to this situation will be development of new diagnostic methods that will allow to predict the emergence of cataract long before the manifestation of its clinical signs and to start early preventive treatment.
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Affiliation(s)
- Konstantin O Muranov
- Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, Moscow, 119334, Russia.
| | - Mikhail A Ostrovsky
- Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, Moscow, 119334, Russia
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5
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Srihera N, Li Y, Zhang TT, Wang YM, Yanagita T, Waiprib Y, Xue CH. Preparation and Characterization of Astaxanthin-loaded Liposomes Stabilized by Sea Cucumber Sulfated Sterols Instead of Cholesterol. J Oleo Sci 2022; 71:401-410. [DOI: 10.5650/jos.ess21233] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Nattha Srihera
- College of Food Science and Engineering, Ocean University of China
| | - Yue Li
- College of Food Science and Engineering, Ocean University of China
| | - Tian-Tian Zhang
- College of Food Science and Engineering, Ocean University of China
| | - Yu-Ming Wang
- College of Food Science and Engineering, Ocean University of China
| | - Teruyoshi Yanagita
- Laboratory of Nutrition Biochemistry, Department of Applied Biochemistry and Food Science, Saga University
| | - Yaowapha Waiprib
- Department of Fishery Products, Faculty of Fisheries, Kasetsart University
| | - Chang-Hu Xue
- Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology (Qingdao)
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Antimisiaris S, Marazioti A, Kannavou M, Natsaridis E, Gkartziou F, Kogkos G, Mourtas S. Overcoming barriers by local drug delivery with liposomes. Adv Drug Deliv Rev 2021; 174:53-86. [PMID: 33539852 DOI: 10.1016/j.addr.2021.01.019] [Citation(s) in RCA: 128] [Impact Index Per Article: 42.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 01/17/2021] [Accepted: 01/23/2021] [Indexed: 12/13/2022]
Abstract
Localized or topical administration of drugs may be considered as a potential approach for overcoming the problems caused by the various biological barriers encountered in drug delivery. The combination of using localized administration routes and delivering drugs in nanoparticulate formulations, such as liposomes, may have additional advantages. Such advantages include prolonged retention of high drug loads at the site of action and controlled release of the drug, ensuring prolonged therapeutic effect; decreased potential for side-effects and toxicity (due to the high topical concentrations of drugs); and increased protection of drugs from possible harsh environments at the site of action. The use of targeted liposomal formulations may further potentiate any acquired therapeutic advantages. In this review we present the most advanced cases of localized delivery of liposomal formulations of drugs, which have been investigated pre-clinically and clinically in the last ten years, together with the reported therapeutic advantages, in each case.
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7
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Zhou H, Li Y, Yang Y, Liu S, Yang Z. Lanosterol reduces the aggregation propensity of ultraviolet-damaged human γD-crystallins: a molecular dynamics study. Phys Chem Chem Phys 2021; 23:13696-13704. [PMID: 34128026 DOI: 10.1039/d1cp00132a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Ultraviolet (UV) radiation-induced oxidation of tryptophan (Trp) to kynurenine (KN) (TRP > KN) in human γD-crystallins (HγD-Crys) promotes the conversion of proteins into partially unfolded species that act as important precursors for sequential large-scale aggregation. Herein, we report that lanosterol shows protective activity to the structure of the TRP > KN mutant HγD-Crys, particularly its N-terminal domain (N-td), by using all-atom molecular dynamics simulations. The Trp68 > KN mutation significantly destabilizes the originally highly stable "Tyr55-Trp68-Tyr62" cluster, thereby causing loop2, where the mutation occurs, to become very flexible. The large fluctuation of loop2 induces cracks, which appear on the protein surface, resulting in the intrusion of water molecules into the hydrophobic core of the N-td. This event eventually triggers the unfolding of the N-td. However, lanosterol can suppress the large fluctuation of loop2 to protect the structural stability of the mutant N-td, thus reducing the aggregation propensity of the TRP > KN mutant HγD-Crys. This structure protective activity of lanosterol arises from its capability to preferentially bind to the hydrophobic regions near loop2. Thus, lanosterol acts as a "water blocker" to prevent the invasion of solvent molecules into the hydrophobic core. These findings provide some valuable insights into the development of potential lanosterol-based drugs for cataract prevention and treatment.
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Affiliation(s)
- Hong Zhou
- State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X), Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123, China.
| | - Youyun Li
- State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X), Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123, China.
| | - Ying Yang
- State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X), Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123, China.
| | - Shengtang Liu
- State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X), Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123, China.
| | - Zaixing Yang
- State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X), Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123, China.
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8
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Zhang M, Zhu NW, Ma WC, Chen MJ, Zheng L. Combined treatment with ultrasound-targeted microbubble destruction technique and NM-aFGF-loaded PEG-nanoliposomes protects against diabetic cardiomyopathy-induced oxidative stress by activating the AKT/GSK-3β1/Nrf-2 pathway. Drug Deliv 2021; 27:938-952. [PMID: 32611270 PMCID: PMC8216439 DOI: 10.1080/10717544.2020.1785052] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
The present study sought to investigate the effect of non-mitogenic acidic fibroblast growth factor (NM-aFGF) loaded PEGylated nanoliposomes (NM-aFGF-PEG-lips) combined with the ultrasound-targeted microbubble destruction (UTMD) technique on modulating diabetic cardiomyopathy (DCM)and the mechanism involved. Animal studies showed that the diabetes mellitus (DM) group exhibited typical myocardial structural and functional changes of DCM. The indexes from the transthoracic echocardiography showed that the left ventricular function in the NM-aFGF-PEG-lips + UTMD group was significantly improved compared with the DM group. Histopathological observation further confirmed that the cardiomyocyte structural abnormalities and mitochondria ultrastructural changes were also significantly improved in the NM-aFGF-PEG-lips + UTMD group compared with DM group. The cardiac volume fraction (CVF) and apoptosis index in the NM-aFGF-PEG-lips + UTMD group decreased to 10.31 ± 0.76% and 2.16 ± 0.34, respectively, compared with those in the DM group (CVF = 21.4 ± 2.32, apoptosis index = 11.51 ± 1.24%). Moreover, we also found significantly increased superoxide dismutase (SOD) activity and glutathione peroxidase (GSH-Px) activity as well as clearly decreased lipid hydroperoxide levels and malondialdehyde (MDA) activity in the NM-aFGF-PEG-lips + UTMD group compared with those in the DM group (p < .05). Western blot analysis further revealed the highest level of NM-aFGF, p-AKT, p-GSK-3β1, Nrf-2, SOD2 and NQO1 in the NM-aFGF-PEG-lips + UTMD group. This study confirmed using PEGylated nanoliposomes combined with the UTMD technique can effectively deliver NM-aFGF to the cardiac tissue of diabetic rats. The NM-aFGF can then inhibit myocardial oxidative stress damage due to DM by activating the AKT/GSK/Nrf-2 signaling pathway, which ultimately improved the myocardial structural and functional lesions in diabetic rats.
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Affiliation(s)
- Ming Zhang
- Department of Pharmacy, Ningbo Yinzhou NO.2 Hospital, Ningbo, China
| | - Ning-Wei Zhu
- Department of Pharmacy, Zhejiang Pharmaceutical College, Ningbo, China
| | - Wei-Cheng Ma
- Department of Pharmacy, Ningbo Yinzhou NO.2 Hospital, Ningbo, China
| | - Meng-Jia Chen
- Department of Pharmacy, Ningbo Yinzhou NO.2 Hospital, Ningbo, China
| | - Lei Zheng
- Department of Ultrasonography, Henan Provincial People's Hospital, Zhengzhou University People's Hospital, Zhengzhou, China.,Department of Ultrasonography, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
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9
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Zhang F, Chen H, Lan J, Song K, Wu X. Preparation and in vitro/in vivo evaluations of novel ocular micelle formulations of hesperetin with glycyrrhizin as a nanocarrier. Exp Eye Res 2020; 202:108313. [PMID: 33080302 DOI: 10.1016/j.exer.2020.108313] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 10/08/2020] [Accepted: 10/15/2020] [Indexed: 11/16/2022]
Abstract
The purpose of this study was to explore the potential of formulating hesperetin into an ophthalmic solution with dipotassium glycyrrhizinate (DG) as a micelle nanocarrier. A DG-based micelle ophthalmic solution encapsulating hesperetin (DG-Hes) was developed and its in vitro/in vivo characterizations were evaluated. The optimal formulation featured a DG/hesperetin (Hes) weight ratio of 12:1 and an encapsulation efficiency of 90.4 ± 1.7%; The optimized DG-Hes was characterized as small uniform spheres with an average micelle size of 70.93 ± 3.41 nm, a polydispersity index of 0.11 ± 0.02, and an electrically negative surface (-36.12 ± 2.79 mV). The DG-Hes ophthalmic solution had good tolerance in rabbit eyes. DG-Hes significantly improved the in vitro passive permeation, ex vivo corneal permeation, and in vivo ocular bioavailability of Hes. DG-Hes showed markedly increases in in vitro antioxidant activity. In vitro antibacterial activity tests revealed a lower minimum inhibitory concentration and lower minimum bactericidal concentration for DG-Hes ophthalmic solution were lower than for free Hes. DG-Hes ophthalmic solution also significantly reduced symptoms of eye infection in the rabbit bacterial keratitis model when compared to a Hes suspension. These results suggest that DG-Hes eye drops may be useful as a new ophthalmic preparation for the treatment of ocular diseases, especially bacterial ophthalmopathy.
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Affiliation(s)
- Fan Zhang
- Department of Pharmacy, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, China
| | - Huabo Chen
- Qingdao Eye Hospital of Shandong First Medical University, Qingdao, China; State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong First Medical University & Shandong Academy of Medical Sciences, Qingdao, China
| | - Jie Lan
- Qingdao Eye Hospital of Shandong First Medical University, Qingdao, China; State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong First Medical University & Shandong Academy of Medical Sciences, Qingdao, China
| | - Kaichao Song
- Department of Pharmacy, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, China
| | - Xianggen Wu
- Department of Pharmacy, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, China; Key Laboratory of Pharmaceutical Research for Metabolic Diseases, Qingdao University of Science and Technology, Qingdao, China.
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10
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Zamboulis A, Nanaki S, Michailidou G, Koumentakou I, Lazaridou M, Ainali NM, Xanthopoulou E, Bikiaris DN. Chitosan and its Derivatives for Ocular Delivery Formulations: Recent Advances and Developments. Polymers (Basel) 2020; 12:E1519. [PMID: 32650536 PMCID: PMC7407599 DOI: 10.3390/polym12071519] [Citation(s) in RCA: 86] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 07/03/2020] [Accepted: 07/03/2020] [Indexed: 02/06/2023] Open
Abstract
Chitosan (CS) is a hemi-synthetic cationic linear polysaccharide produced by the deacetylation of chitin. CS is non-toxic, highly biocompatible, and biodegradable, and it has a low immunogenicity. Additionally, CS has inherent antibacterial properties and a mucoadhesive character and can disrupt epithelial tight junctions, thus acting as a permeability enhancer. As such, CS and its derivatives are well-suited for the challenging field of ocular drug delivery. In the present review article, we will discuss the properties of CS that contribute to its successful application in ocular delivery before reviewing the latest advances in the use of CS for the development of novel ophthalmic delivery systems. Colloidal nanocarriers (nanoparticles, micelles, liposomes) will be presented, followed by CS gels and lenses and ocular inserts. Finally, instances of CS coatings, aiming at conferring mucoadhesiveness to other matrixes, will be presented.
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Affiliation(s)
- Alexandra Zamboulis
- Laboratory of Polymer Chemistry & Technology, Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (S.N.); (G.M.); (I.K.); (M.L.); (N.M.A.); (E.X.)
| | | | | | | | | | | | | | - Dimitrios N. Bikiaris
- Laboratory of Polymer Chemistry & Technology, Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (S.N.); (G.M.); (I.K.); (M.L.); (N.M.A.); (E.X.)
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11
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Nagai N, Fukuoka Y, Sato K, Otake H, Taga A, Oka M, Hiramatsu N, Yamamoto N. The Intravitreal Injection of Lanosterol Nanoparticles Rescues Lens Structure Collapse at an Early Stage in Shumiya Cataract Rats. Int J Mol Sci 2020; 21:ijms21031048. [PMID: 32033321 PMCID: PMC7036956 DOI: 10.3390/ijms21031048] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Revised: 01/27/2020] [Accepted: 02/03/2020] [Indexed: 02/07/2023] Open
Abstract
We designed an intravitreal injection formulation containing lanosterol nanoparticles (LAN-NPs) via the bead mill method and evaluated the therapeutic effect of LAN-NPs on lens structure collapse and opacification using two rat cataract models (SCR-N, rats with slight lens structure collapse; SCR-C, rats with the combination of a remarkable lens structure collapse and opacification). The particle size of lanosterol in the LAN-NPs was around 50–400 nm. A single injection of LAN-NPs (0.5%) supplied lanosterol into the lens for 48 h, and no irritation or muddiness was observed following repeated injections of LAN-NPs for 6 weeks (once every 2 days). Moreover, LAN-NPs repaired the slight collapse of the lens structure in SCR-N. Although the remarkable changes in the lens structure of SCR-C were not repaired by LAN-NP, the onset of opacification was delayed. In addition, the increase of cataract-related factors (Ca2+ contents, nitric oxide levels, lipid peroxidation and calpain activity levels) in the lenses of SCR-C was attenuated by the repeated injection of LAN-NPs. It is possible that a deficiency of lanosterol promotes the production of oxidative stress. In conclusion, it is difficult to improve serious structural collapse with posterior movement of the lens nucleus with a supplement of lanosterol via LAN-NPs. However, the intravitreal injection of LAN-NPs was found to repair the space and structural collapse in the early stages in the lenses.
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Affiliation(s)
- Noriaki Nagai
- Faculty of Pharmacy, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan; (Y.F.); (K.S.); (H.O.); (A.T.)
- Correspondence: ; Tel.: +81-6-4307-3638
| | - Yuya Fukuoka
- Faculty of Pharmacy, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan; (Y.F.); (K.S.); (H.O.); (A.T.)
| | - Kanta Sato
- Faculty of Pharmacy, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan; (Y.F.); (K.S.); (H.O.); (A.T.)
| | - Hiroko Otake
- Faculty of Pharmacy, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan; (Y.F.); (K.S.); (H.O.); (A.T.)
| | - Atsushi Taga
- Faculty of Pharmacy, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan; (Y.F.); (K.S.); (H.O.); (A.T.)
| | - Mikako Oka
- Faculty of pharmacy, Yokohama University of Pharmacy, Yokohama, Kanagawa 245-0066, Japan;
| | - Noriko Hiramatsu
- Laboratory of Molecularbiology and Histochemistry, Fujita Health University Institute of Joint Research, 1-98 Dengakugakubo, Kutsukake, Toyoake 470-1192, Aichi, Japan; (N.H.); (N.Y.)
| | - Naoki Yamamoto
- Laboratory of Molecularbiology and Histochemistry, Fujita Health University Institute of Joint Research, 1-98 Dengakugakubo, Kutsukake, Toyoake 470-1192, Aichi, Japan; (N.H.); (N.Y.)
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12
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Li R, Zhang LY, Li ZJ, Xue CH, Dong P, Huang QR, Wang YM, Zhang TT. Characterization and Absorption Kinetics of a Novel Multifunctional Nanoliposome Stabilized by Sea Cucumber Saponins Instead of Cholesterol. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:642-651. [PMID: 31830780 DOI: 10.1021/acs.jafc.9b06460] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Cholesterol was usually used to stabilize liposome, although there have been controversies on the relationship between dietary cholesterol and health. The present study aimed to prepare a novel multifunctional nanoliposomes stabilized by sea cucumber-derived saponins using ultrasound-assisted film dispersion method. A novel uniform liposome with a mass ratio of egg yolk lecithin/sea cucumber saponins at 75:25 was successfully prepared to encapsulate saponin, and the particle size was 164.8 ± 1.70 nm with a PDI value of 0.214 ± 0.022 and zeta potential of -15.97 ± 1.23 mV. The digestion and absorption results in vivo showed that the dietary saponins in liposome form could delay the peak time of saponins and prolong their residence time in the serum. Moreover, saponins were more easily converted into their corresponding metabolites after administration with saponins in the liposome form. The novel liposome as an efficient carrier with multiple functions had great potential in the development of functional food and biomedical applications.
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Affiliation(s)
- Rong Li
- College of Food Science and Engineering , Ocean University of China , 5 Yushan Road , Qingdao 266003 , P. R. China
| | - Ling-Yu Zhang
- College of Food Science and Engineering , Ocean University of China , 5 Yushan Road , Qingdao 266003 , P. R. China
| | - Zhao-Jie Li
- College of Food Science and Engineering , Ocean University of China , 5 Yushan Road , Qingdao 266003 , P. R. China
| | - Chang-Hu Xue
- College of Food Science and Engineering , Ocean University of China , 5 Yushan Road , Qingdao 266003 , P. R. China
- Laboratory for Marine Drugs and Bioproducts , Pilot National Laboratory for Marine Science and Technology (Qingdao) , Qingdao , Shandong Province 266237 , P. R. China
| | - Ping Dong
- College of Food Science and Engineering , Ocean University of China , 5 Yushan Road , Qingdao 266003 , P. R. China
| | - Qing-Rong Huang
- Department of Food Science , Rutgers State University , 65 Dudley Rd , New Brunswick , New Jersey 08901 , USA
| | - Yu-Ming Wang
- College of Food Science and Engineering , Ocean University of China , 5 Yushan Road , Qingdao 266003 , P. R. China
- Laboratory for Marine Drugs and Bioproducts , Pilot National Laboratory for Marine Science and Technology (Qingdao) , Qingdao , Shandong Province 266237 , P. R. China
| | - Tian-Tian Zhang
- College of Food Science and Engineering , Ocean University of China , 5 Yushan Road , Qingdao 266003 , P. R. China
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