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Weber C, Quintin P, Holz FG, Fea A, Mercieca K. Ocular drug delivery systems: glaucoma patient perceptions from a German university hospital eye clinic. Graefes Arch Clin Exp Ophthalmol 2024; 262:545-556. [PMID: 37776338 PMCID: PMC10844344 DOI: 10.1007/s00417-023-06248-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 09/07/2023] [Accepted: 09/15/2023] [Indexed: 10/02/2023] Open
Abstract
PURPOSE This study aimed to report on glaucoma patients' beliefs and illness perceptions and to investigate their opinion on ocular drug delivery devices (ODD). METHODS We performed a cross-sectional study in a large tertiary-referral outpatient glaucoma clinic, with 102 patients. Validated anonymized questionnaires were used. We investigated the awareness and acceptance regarding ODD (contact lenses (CLs), punctal plugs (PPs), subconjunctival implants, anterior chamber (AC) injections, and drug-emitting stents) and looked at factors that could influence a patient's decision for having an ODD. RESULTS Sixty-three patients (61.8%) confirmed they would rather have ODD than keep their eye-drops (38.2%). The most important factors influencing their decision were effectiveness and long-lasting effect. A large proportion of patients reported a preference for CLs (48.0%), PPs (52.9%), or drug-emitting stents (44.1%). When comparing patients who preferred ODD (group-1) versus eye-drops (group-2), significantly more patients in group-1 were worried (p < 0.001) or felt disrupted (p < 0.001) by their use of eye-drops. A significantly greater share of patients in group-1 showed acceptance towards CLs (60.3% vs. 38.5%; p = 0.032), AC injections (38.1% vs. 12.8%, p = 0.006), or drug-emitting stents (54% vs. 28.2%, p = 0.023), whilst there were no significant differences regarding the acceptance of PPs (p = 0.363) or subconjunctival implants (p = 0.058). CONCLUSION ODD for the treatment of glaucoma were broadly deemed acceptable by patients in this study. Effectiveness and long-lasting effect were the most important factors for a decision towards having an ODD. The majority of patients who preferred an ODD felt severely affected by their disease and were negatively influenced by their glaucoma medication intake.
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Affiliation(s)
- Constance Weber
- Department of Ophthalmology, University of Bonn, Ernst-Abbe-Straße 2, 53117, Bonn, Germany
| | - Philipp Quintin
- Department of Ophthalmology, University of Bonn, Ernst-Abbe-Straße 2, 53117, Bonn, Germany
| | - Frank G Holz
- Department of Ophthalmology, University of Bonn, Ernst-Abbe-Straße 2, 53117, Bonn, Germany
| | - Antonio Fea
- Department of Ophthalmology, University of Turin, Turin, Italy
| | - Karl Mercieca
- Department of Ophthalmology, University of Bonn, Ernst-Abbe-Straße 2, 53117, Bonn, Germany.
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Tsung TH, Tsai YC, Lee HP, Chen YH, Lu DW. Biodegradable Polymer-Based Drug-Delivery Systems for Ocular Diseases. Int J Mol Sci 2023; 24:12976. [PMID: 37629157 PMCID: PMC10455181 DOI: 10.3390/ijms241612976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 08/12/2023] [Accepted: 08/16/2023] [Indexed: 08/27/2023] Open
Abstract
Ocular drug delivery is a challenging field due to the unique anatomical and physiological barriers of the eye. Biodegradable polymers have emerged as promising tools for efficient and controlled drug delivery in ocular diseases. This review provides an overview of biodegradable polymer-based drug-delivery systems for ocular diseases with emphasis on the potential for biodegradable polymers to overcome the limitations of conventional methods, allowing for sustained drug release, improved bioavailability, and targeted therapy. Natural and synthetic polymers are both discussed, highlighting their biodegradability and biocompatibility. Various formulation strategies, such as nanoparticles, hydrogels, and microemulsions, among others, are investigated, detailing preparation methods, drug encapsulation, and clinical applications. The focus is on anterior and posterior segment drug delivery, covering glaucoma, corneal disorders, ocular inflammation, retinal diseases, age-related macular degeneration, and diabetic retinopathy. Safety considerations, such as biocompatibility evaluations, in vivo toxicity studies, and clinical safety, are addressed. Future perspectives encompass advancements, regulatory considerations, and clinical translation challenges. In conclusion, biodegradable polymers offer potential for efficient and targeted ocular drug delivery, improving therapeutic outcomes while reducing side effects. Further research is needed to optimize formulation strategies and address regulatory requirements for successful clinical implementation.
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Affiliation(s)
- Ta-Hsin Tsung
- Department of Ophthalmology, Tri-Service General Hospital, National Defense Medical Center, Taipei 11490, Taiwan; (T.-H.T.); (Y.-C.T.); (H.-P.L.); (Y.-H.C.)
| | - Yu-Chien Tsai
- Department of Ophthalmology, Tri-Service General Hospital, National Defense Medical Center, Taipei 11490, Taiwan; (T.-H.T.); (Y.-C.T.); (H.-P.L.); (Y.-H.C.)
- Department of Ophthalmology, Taoyuan Armed Forces General Hospital, Taoyuan 325, Taiwan
| | - Hsin-Pei Lee
- Department of Ophthalmology, Tri-Service General Hospital, National Defense Medical Center, Taipei 11490, Taiwan; (T.-H.T.); (Y.-C.T.); (H.-P.L.); (Y.-H.C.)
| | - Yi-Hao Chen
- Department of Ophthalmology, Tri-Service General Hospital, National Defense Medical Center, Taipei 11490, Taiwan; (T.-H.T.); (Y.-C.T.); (H.-P.L.); (Y.-H.C.)
| | - Da-Wen Lu
- Department of Ophthalmology, Tri-Service General Hospital, National Defense Medical Center, Taipei 11490, Taiwan; (T.-H.T.); (Y.-C.T.); (H.-P.L.); (Y.-H.C.)
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Zhao J, Xiong J, Ning Y, Zhao J, Wang Z, Long L, He H, Gou J, Yin T, Tang X, Zhang Y. A triple crosslinked micelle-hydrogel lacrimal implant for localized and prolonged therapy of glaucoma. Eur J Pharm Biopharm 2023; 185:44-54. [PMID: 36841507 DOI: 10.1016/j.ejpb.2023.02.011] [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: 12/08/2022] [Revised: 02/05/2023] [Accepted: 02/20/2023] [Indexed: 02/27/2023]
Abstract
Glaucoma is a chronic disease that requires lifelong treatment, whereas, discomfort caused by frequent medication may affect the quality of life. Moreover, the therapeutic efficacy of traditional local administration was unsatisfactory due to the rapid ocular clearance mechanism and the ocular barrier. Herein, a triple crosslinked micelle-hydrogel lacrimal implant with low polymer content was fabricated for localized and prolonged therapy of glaucoma. Latanoprost and timolol were simultaneously entrapped in the PEG-PLA micelles with high encapsulation efficiency and further loaded into the triple crosslinked hydrogel, facilitating a double sustained release of drugs. Subsequently, the implant was constructed by a unique molecular orientation fixation technology, which enables the implant to be fixed in the lacrimal duct. The triple crosslinked micelle-hydrogel lacrimal implant manifested a distinguished physicochemical characterization to sustain the release of latanoprost and timolol. In vitro release experiment demonstrated the duration of two drugs was extended for up to 28 days. The in vivo test of elevated intraocular pressure (IOP) in a rabbit model revealed that the IOP-lowering effects were sustained longer than 28 days as expected. The relative pharmacological availability (PA) of lacrimal implants was 5.7 times greater than that of the eye drops. The results of the studies on ocular irritation and histological examination demonstrated the good safety of the lacrimal implant. In conclusion, the triple crosslinked micelle-hydrogel lacrimal implant could effectively lower the IOP with splendid compatibility, demonstrating the promising prospect in the long-term noninvasive treatment of glaucoma.
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Affiliation(s)
- Jingyi Zhao
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, Liaoning, China
| | - Jian Xiong
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, Liaoning, China
| | - Yun Ning
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, Liaoning, China
| | - Jiansong Zhao
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, Liaoning, China
| | - Zhipeng Wang
- School of Functional Food and Wine, Shenyang Pharmaceutical University, Shenyang 110016, Liaoning, China
| | - Linhui Long
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, Liaoning, China
| | - Haibing He
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, Liaoning, China
| | - Jingxing Gou
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, Liaoning, China
| | - Tian Yin
- School of Functional Food and Wine, Shenyang Pharmaceutical University, Shenyang 110016, Liaoning, China
| | - Xing Tang
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, Liaoning, China
| | - Yu Zhang
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, Liaoning, China.
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Engineering Advanced Drug Delivery Systems for Dry Eye: A Review. BIOENGINEERING (BASEL, SWITZERLAND) 2022; 10:bioengineering10010053. [PMID: 36671625 PMCID: PMC9854618 DOI: 10.3390/bioengineering10010053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 12/12/2022] [Accepted: 12/24/2022] [Indexed: 01/03/2023]
Abstract
Dry eye disease (DED) is a widespread and frequently reported multifactorial ocular disease that not only causes ocular discomfort but also damages the cornea and conjunctiva. At present, topical administration is the most common treatment modality for DED. Due to the existence of multiple biological barriers, instilled drugs generally exhibit short action times and poor penetration on the ocular surface. To resolve these issues, several advanced drug delivery systems have been proposed. This review discusses new dosage forms of drugs for the treatment of DED in terms of their characteristics and advantages. Innovative formulations that are currently available in the market and under clinical investigation are elaborated. Meanwhile, their deficiencies are discussed. It is envisioned that the flourishing of advanced drug delivery systems will lead to improved management of DED in the near future.
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The emerging role of 3D-printing in ocular drug delivery: Challenges, current status, and future prospects. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Huo Y, Liu Y, Xia M, Du H, Lin Z, Li B, Liu H. Nanocellulose-Based Composite Materials Used in Drug Delivery Systems. Polymers (Basel) 2022; 14:2648. [PMID: 35808693 PMCID: PMC9268916 DOI: 10.3390/polym14132648] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 06/21/2022] [Accepted: 06/22/2022] [Indexed: 02/01/2023] Open
Abstract
Nanocellulose has lately emerged as one of the most promising "green" materials due to its unique properties. Nanocellulose can be mainly divided into three types, i.e., cellulose nanocrystals (CNCs), cellulose nanofibrils (CNFs), and bacterial cellulose (BC). With the rapid development of technology, nanocellulose has been designed into multidimensional structures, including 1D (nanofibers, microparticles), 2D (films), and 3D (hydrogels, aerogels) materials. Due to its adaptable surface chemistry, high surface area, biocompatibility, and biodegradability, nanocellulose-based composite materials can be further transformed as drug delivery carriers. Herein, nanocellulose-based composite material used for drug delivery was reviewed. The typical drug release behaviors and the drug release mechanisms of nanocellulose-based composite materials were further summarized, and the potential application of nanocellulose-based composite materials was prospected as well.
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Affiliation(s)
- Ying Huo
- Tianjin Key Laboratory of Pulp and Paper, School of Light Industry Science and Engineering, Tianjin University of Science & Technology, Tianjin 300457, China; (Y.H.); (M.X.); (H.D.)
| | - Yingying Liu
- Tianjin Key Laboratory of Pulp and Paper, School of Light Industry Science and Engineering, Tianjin University of Science & Technology, Tianjin 300457, China; (Y.H.); (M.X.); (H.D.)
| | - Mingfeng Xia
- Tianjin Key Laboratory of Pulp and Paper, School of Light Industry Science and Engineering, Tianjin University of Science & Technology, Tianjin 300457, China; (Y.H.); (M.X.); (H.D.)
| | - Hong Du
- Tianjin Key Laboratory of Pulp and Paper, School of Light Industry Science and Engineering, Tianjin University of Science & Technology, Tianjin 300457, China; (Y.H.); (M.X.); (H.D.)
| | - Zhaoyun Lin
- Key Laboratory of Pulp and Paper Science & Technology of Ministry of Education, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China;
| | - Bin Li
- CAS Key Laboratory of Biofuels, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China
| | - Hongbin Liu
- Tianjin Key Laboratory of Pulp and Paper, School of Light Industry Science and Engineering, Tianjin University of Science & Technology, Tianjin 300457, China; (Y.H.); (M.X.); (H.D.)
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Liu R, Feng Y, Li Z, Lu S, Guan T, Li X, Liu Y, Chen Z, Chen X. A Novel Near-infrared Responsive Lanthanide Upconversion Nanoplatform for Drug Delivery Based on Photocleavage of Cypate ※. ACTA CHIMICA SINICA 2022. [DOI: 10.6023/a22010001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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8
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Omer S, Zelkó R. A Systematic Review of Drug-Loaded Electrospun Nanofiber-Based Ophthalmic Inserts. Pharmaceutics 2021; 13:1637. [PMID: 34683930 PMCID: PMC8536958 DOI: 10.3390/pharmaceutics13101637] [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: 09/07/2021] [Revised: 09/26/2021] [Accepted: 10/05/2021] [Indexed: 12/14/2022] Open
Abstract
Currently, ocular inserts and nanoparticles have received much attention due to the limited bioavailability of conventional eye preparations and the toxicity problems of systemic drug administration. The current systematic review aims to present recent studies on the use of electrospun nanofiber-based ocular inserts to improve the bioavailability of drugs used for different ophthalmic diseases. A systematic search was performed in PubMed, Ovid Medline, Web of Science, ScienceDirect, Scopus, Reaxys, Google Scholar, and Google Patents/Espacenet taking "drug-loaded", "nanofibers", and "ophthalmic inserts" and their equivalent terms as keywords. The search was limited to original and peer-reviewed studies published in 2011-2021 in English language. Only 13 out of 795 articles and 15 out of 197 patents were included. All results revealed the success of nanofiber-based ocular inserts in targeting and improved bioavailability. Ocular inserts based on nanofibers can be used as safe, efficient carriers for the treatment of anterior and posterior eye diseases.
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Affiliation(s)
| | - Romána Zelkó
- University Pharmacy Department of Pharmacy Administration, Semmelweis University, 1092 Budapest, Hungary;
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9
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Xu X, Awwad S, Diaz-Gomez L, Alvarez-Lorenzo C, Brocchini S, Gaisford S, Goyanes A, Basit AW. 3D Printed Punctal Plugs for Controlled Ocular Drug Delivery. Pharmaceutics 2021; 13:pharmaceutics13091421. [PMID: 34575497 PMCID: PMC8464872 DOI: 10.3390/pharmaceutics13091421] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Revised: 09/02/2021] [Accepted: 09/03/2021] [Indexed: 02/08/2023] Open
Abstract
Dry eye disease is a common ocular disorder that is characterised by tear deficiency or excessive tear evaporation. Current treatment involves the use of eye drops; however, therapeutic efficacy is limited because of poor ocular bioavailability of topically applied formulations. In this study, digital light processing (DLP) 3D printing was employed to develop dexamethasone-loaded punctal plugs. Punctal plugs with different drug loadings were fabricated using polyethylene glycol diacrylate (PEGDA) and polyethylene glycol 400 (PEG 400) to create a semi-interpenetrating network (semi-IPN). Drug-loaded punctal plugs were characterised in terms of physical characteristics (XRD and DSC), potential drug-photopolymer interactions (FTIR), drug release profile, and cytocompatibility. In vitro release kinetics of the punctal plugs were evaluated using an in-house flow rig model that mimics the subconjunctival space. The results showed sustained release of dexamethasone for up to 7 days from punctal plugs made with 20% w/w PEG 400 and 80% w/w PEGDA, while punctal plugs made with 100% PEGDA exhibited prolonged releases for more than 21 days. Herein, our study demonstrates that DLP 3D printing represents a potential manufacturing platform for fabricating personalised drug-loaded punctal plugs with extended release characteristics for ocular administration.
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Affiliation(s)
- Xiaoyan Xu
- Department of Pharmaceutics, UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, UK; (X.X.); (S.A.); (S.B.); (S.G.)
| | - Sahar Awwad
- Department of Pharmaceutics, UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, UK; (X.X.); (S.A.); (S.B.); (S.G.)
| | - Luis Diaz-Gomez
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, I+D Farma (GI-1645), Facultad de Farmacia and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain; (L.D.-G.); (C.A.-L.)
| | - Carmen Alvarez-Lorenzo
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, I+D Farma (GI-1645), Facultad de Farmacia and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain; (L.D.-G.); (C.A.-L.)
| | - Steve Brocchini
- Department of Pharmaceutics, UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, UK; (X.X.); (S.A.); (S.B.); (S.G.)
| | - Simon Gaisford
- Department of Pharmaceutics, UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, UK; (X.X.); (S.A.); (S.B.); (S.G.)
- FabRx Ltd., Henwood House, Henwood, Ashford, Kent TN24 8DH, UK
| | - Alvaro Goyanes
- Department of Pharmaceutics, UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, UK; (X.X.); (S.A.); (S.B.); (S.G.)
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, I+D Farma (GI-1645), Facultad de Farmacia and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain; (L.D.-G.); (C.A.-L.)
- FabRx Ltd., Henwood House, Henwood, Ashford, Kent TN24 8DH, UK
- Correspondence: (A.G.); (A.W.B.)
| | - Abdul W. Basit
- Department of Pharmaceutics, UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, UK; (X.X.); (S.A.); (S.B.); (S.G.)
- FabRx Ltd., Henwood House, Henwood, Ashford, Kent TN24 8DH, UK
- Correspondence: (A.G.); (A.W.B.)
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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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Ahmadi S, Rabiee N, Bagherzadeh M, Elmi F, Fatahi Y, Farjadian F, Baheiraei N, Nasseri B, Rabiee M, Dastjerd NT, Valibeik A, Karimi M, Hamblin MR. Stimulus-Responsive Sequential Release Systems for Drug and Gene Delivery. NANO TODAY 2020; 34:100914. [PMID: 32788923 PMCID: PMC7416836 DOI: 10.1016/j.nantod.2020.100914] [Citation(s) in RCA: 99] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
In recent years, a range of studies have been conducted with the aim to design and characterize delivery systems that are able to release multiple therapeutic agents in controlled and programmed temporal sequences, or with spatial resolution inside the body. This sequential release occurs in response to different stimuli, including changes in pH, redox potential, enzyme activity, temperature gradients, light irradiation, and by applying external magnetic and electrical fields. Sequential release (SR)-based delivery systems, are often based on a range of different micro- or nanocarriers and may offer a silver bullet in the battle against various diseases, such as cancer. Their distinctive characteristic is the ability to release one or more drugs (or release drugs along with genes) in a controlled sequence at different times or at different sites. This approach can lengthen gene expression periods, reduce the side effects of drugs, enhance the efficacy of drugs, and induce an anti-proliferative effect on cancer cells due to the synergistic effects of genes and drugs. The key objective of this review is to summarize recent progress in SR-based drug/gene delivery systems for cancer and other diseases.
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Affiliation(s)
- Sepideh Ahmadi
- Student Research Committee, Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Cellular and Molecular Biology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Navid Rabiee
- Department of Chemistry, Sharif University of Technology, Tehran, Iran
| | | | - Faranak Elmi
- Department of Biotechnology, School of Advanced Medical Science, Tabriz University of Medical Science, Tabriz, Iran
- Department of Biology, Faculty of science, Marand Branch, Islamic Azad University, Marand, Iran
| | - Yousef Fatahi
- Department of Pharmaceutical Nanotechnology, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
- Nanotechnology Research Centre, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
- Universal Scientific Education and Research Center (USERN), Tehran, Iran
| | - Fatemeh Farjadian
- Pharmaceutical Sciences Research Center, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Nafiseh Baheiraei
- Tissue Engineering and Applied Cell Sciences Division, Department of Hematology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Behzad Nasseri
- Chemical Engineering Department, Bioengineering Division and Bioengineering Centre, Hacettepe University, 06800, Ankara, Turkey
- Chemical Engineering and Applied Chemistry Department, Atilim University, 06830, Ankara, Turkey
| | - Mohammad Rabiee
- Biomaterial Group, Department of Biomedical Engineering, Amirkabir University of Technology, Tehran, Iran
| | - Niloufar Tavakoli Dastjerd
- Department of Medical Biotechnology, School of Allied Medical Sciences, Qazvin University of Medical Sciences, Qazvin, Iran
| | - Ali Valibeik
- Department of Clinical Biochemistry, School of Medicine, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Mahdi Karimi
- Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, Iran
- Department of Medical Nanotechnology, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran
- Oncopathology Research Center, Iran University of Medical Sciences, Tehran, Iran
- Research Center for Science and Technology in Medicine, Tehran University of Medical Sciences, Tehran, Iran
- Applied Biotechnology Research Centre, Tehran Medical Science, Islamic Azad University, Tehran, Iran
- Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
| | - Michael R Hamblin
- Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
- Laser Research Centre, Faculty of Health Science, University of Johannesburg, Doornfontein 2028, South Africa
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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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Wang L, Li T, Xin B, Liu Y, Zhang F. Preparation and characterization of wormwood-oil-contained microcapsules. J Microencapsul 2020; 37:324-331. [DOI: 10.1080/02652048.2020.1749320] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Lei Wang
- School of Textiles and Fashion Engineering, Shanghai University of Engineering Science, Shanghai, China
| | - Tingxiao Li
- School of Textiles and Fashion Engineering, Shanghai University of Engineering Science, Shanghai, China
| | - Binjie Xin
- School of Textiles and Fashion Engineering, Shanghai University of Engineering Science, Shanghai, China
| | - Yan Liu
- School of Textiles and Fashion Engineering, Shanghai University of Engineering Science, Shanghai, China
| | - Fuli Zhang
- The Naval Medical Research Institute, Naval Medical Research Institute, Shanghai, China
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Best AL, Labetoulle M, Legrand M, M'garrech M, Barreau E, Rousseau A. [Punctal and canalicular plugs: Indications, efficacy and safety (French translation of the article)]. J Fr Ophtalmol 2019; 42:404-414. [PMID: 30879835 DOI: 10.1016/j.jfo.2018.10.003] [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: 08/31/2018] [Revised: 10/08/2018] [Accepted: 10/12/2018] [Indexed: 10/27/2022]
Abstract
Lacrimal occlusion with punctal or canalicular plugs have been used to treat dry eye disease for more than 40 years. Indeed, punctal plugs constitute a safe and effective tool to retain the natural tear film and prolong the effect of tear substitutes. A wide variety of plugs is available, differing in their design, location (punctal versus canalicular) and their resorbability. There indications have increasingly broadened, and they are now one of the treatment options for numerous ocular surface diseases. Current research focuses on using punctal plugs for extended delivery of drugs to the ocular surface. This review addresses physiology of lacrimal drainage, available models of punctal plugs, their indications, practical details of prescribing and placing punctal and canalicular plugs, and possible complications.
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Affiliation(s)
- A-L Best
- Service d'ophtalmologie, centre de référence maladies rares en ophtalmologie OPHTARA, hôpital Bicêtre, université Paris-Sud, DHU vision et handicap, Assistance publique-Hôpitaux de Paris, 78, rue du Général Leclerc, 94275 Le Kremlin-Bicêtre cedex, France
| | - M Labetoulle
- Service d'ophtalmologie, centre de référence maladies rares en ophtalmologie OPHTARA, hôpital Bicêtre, université Paris-Sud, DHU vision et handicap, Assistance publique-Hôpitaux de Paris, 78, rue du Général Leclerc, 94275 Le Kremlin-Bicêtre cedex, France; Immunologie des maladies virales et maladies auto-immunes (IMVA/Infrastructure IDMIT) UMR 1184, CEA, 92260 Fontenay-aux-Roses, France
| | - M Legrand
- Service d'ophtalmologie, centre de référence maladies rares en ophtalmologie OPHTARA, hôpital Bicêtre, université Paris-Sud, DHU vision et handicap, Assistance publique-Hôpitaux de Paris, 78, rue du Général Leclerc, 94275 Le Kremlin-Bicêtre cedex, France
| | - M M'garrech
- Service d'ophtalmologie, centre de référence maladies rares en ophtalmologie OPHTARA, hôpital Bicêtre, université Paris-Sud, DHU vision et handicap, Assistance publique-Hôpitaux de Paris, 78, rue du Général Leclerc, 94275 Le Kremlin-Bicêtre cedex, France
| | - E Barreau
- Service d'ophtalmologie, centre de référence maladies rares en ophtalmologie OPHTARA, hôpital Bicêtre, université Paris-Sud, DHU vision et handicap, Assistance publique-Hôpitaux de Paris, 78, rue du Général Leclerc, 94275 Le Kremlin-Bicêtre cedex, France
| | - A Rousseau
- Service d'ophtalmologie, centre de référence maladies rares en ophtalmologie OPHTARA, hôpital Bicêtre, université Paris-Sud, DHU vision et handicap, Assistance publique-Hôpitaux de Paris, 78, rue du Général Leclerc, 94275 Le Kremlin-Bicêtre cedex, France; Immunologie des maladies virales et maladies auto-immunes (IMVA/Infrastructure IDMIT) UMR 1184, CEA, 92260 Fontenay-aux-Roses, France.
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Best AL, Labetoulle M, Legrand M, M'garrech M, Barreau E, Rousseau A. Punctal and canalicular plugs: Indications, efficacy and safety. J Fr Ophtalmol 2019; 42:e95-e104. [PMID: 30692031 DOI: 10.1016/j.jfo.2018.12.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2018] [Revised: 12/10/2018] [Accepted: 12/14/2018] [Indexed: 10/27/2022]
Abstract
Lacrimal occlusion with punctal or canalicular plugs have been used to treat dry eye disease for more than 40 years. Indeed, punctal plugs constitute a safe and effective tool to retain the natural tear film and prolong the effect of tear substitutes. A wide variety of plugs is available, differing in their design, location (punctal versus canalicular) and their resorbability. There indications have increasingly broadened, and they are now one of the treatment options for numerous ocular surface diseases. Current research focuses on using punctal plugs for extended delivery of drugs to the ocular surface. This review addresses physiology of lacrimal drainage, available models of punctal plugs, their indications, practical details of prescribing and placing punctal and canalicular plugs, and possible complications.
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Affiliation(s)
- A-L Best
- Ophthalmology Service, Hôpital Bicêtre, Assistance publique-Hôpitaux de Paris, Université Paris-Sud, Division of Vision and Disabilities, OPHTARA rare eye disease, 78, rue du Général-Leclerc, 94275 Le Kremlin-Bicêtre cedex, France
| | - M Labetoulle
- Ophthalmology Service, Hôpital Bicêtre, Assistance publique-Hôpitaux de Paris, Université Paris-Sud, Division of Vision and Disabilities, OPHTARA rare eye disease, 78, rue du Général-Leclerc, 94275 Le Kremlin-Bicêtre cedex, France; Viral and autoimmune disease immunology (IMVA/Infrastructure IDMIT) UMR 1184, CEA, 92260 Fontenay-aux-Roses, France
| | - M Legrand
- Ophthalmology Service, Hôpital Bicêtre, Assistance publique-Hôpitaux de Paris, Université Paris-Sud, Division of Vision and Disabilities, OPHTARA rare eye disease, 78, rue du Général-Leclerc, 94275 Le Kremlin-Bicêtre cedex, France
| | - M M'garrech
- Ophthalmology Service, Hôpital Bicêtre, Assistance publique-Hôpitaux de Paris, Université Paris-Sud, Division of Vision and Disabilities, OPHTARA rare eye disease, 78, rue du Général-Leclerc, 94275 Le Kremlin-Bicêtre cedex, France
| | - E Barreau
- Ophthalmology Service, Hôpital Bicêtre, Assistance publique-Hôpitaux de Paris, Université Paris-Sud, Division of Vision and Disabilities, OPHTARA rare eye disease, 78, rue du Général-Leclerc, 94275 Le Kremlin-Bicêtre cedex, France
| | - A Rousseau
- Ophthalmology Service, Hôpital Bicêtre, Assistance publique-Hôpitaux de Paris, Université Paris-Sud, Division of Vision and Disabilities, OPHTARA rare eye disease, 78, rue du Général-Leclerc, 94275 Le Kremlin-Bicêtre cedex, France; Viral and autoimmune disease immunology (IMVA/Infrastructure IDMIT) UMR 1184, CEA, 92260 Fontenay-aux-Roses, France.
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Martinez-de-la-Casa JM, Donde S, Wierzbowska J. Latanoprost, a balanced prostaglandin. EXPERT REVIEW OF OPHTHALMOLOGY 2019. [DOI: 10.1080/17469899.2019.1567331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
| | - Shaantanu Donde
- Global Medical Affairs, Pfizer Essential Health, Tadworth, UK
| | - Joanna Wierzbowska
- Department of Ophthalmology, Military Institute of Medicine, Warsaw, Poland
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Li J, Zou J, Xiao H, He B, Hou X, Qian L. Preparation of Novel Nano-Sized Hydrogel Microcapsules via Layer-By-Layer Assembly as Delivery Vehicles for Drugs onto Hygiene Paper. Polymers (Basel) 2018; 10:E335. [PMID: 30966370 PMCID: PMC6414901 DOI: 10.3390/polym10030335] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 02/27/2018] [Accepted: 03/15/2018] [Indexed: 01/07/2023] Open
Abstract
Hydrogel microcapsules are improved transplantation delivery vehicles for pharmaceuticals by effectively segregating the active ingredients from the surroundings and delivering them to a certain target site. Layer-by-layer (LbL) assembly is an attractive process to fabricate the nano-sized hydrogel microcapsules. In this study, nano-sized hydrogel microcapsules were prepared through LbL assembly using calcium carbonate nanoparticles (CaCO₃ NPs) as the sacrificial inorganic template, sodium alginate (SA) and polyethyleneimine (PEI) as the shell materials. Ciprofloxacin was used to study the encapsulation and release properties of the hydrogel microcapsules. The hydrogel microcapsules were further adsorbed onto the paper to render antimicrobial properties. The results showed that the mean size of the CaCO₃ template was reduced after dispersing into sodium n-dodecyl sulfate (SDS) solution under sonication. Transmission electron microscope (TEM) and atomic force microscope (AFM) revealed that some hydrogel microcapsules had a diameter under 200 nm, typical creases and collapses were found on the surface. The nano-sized PEI/SA hydrogel microcapsules showed high loading capacity of ciprofloxacin and a sustained release. PEI/SA hydrogel microcapsules rendered good antimicrobial properties onto the paper by the adsorption of hydrogel microcapsules, however, the mechanical properties of the hygiene paper were decreased.
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Affiliation(s)
- Junrong Li
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China.
| | - Jing Zou
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China.
- Department of Chemical Engineering, University of New Brunswick, Fredericton, NB E3B 5A3, Canada.
| | - Huining Xiao
- Department of Chemical Engineering, University of New Brunswick, Fredericton, NB E3B 5A3, Canada.
| | - Beihai He
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China.
| | - Xiaobang Hou
- Department of Chemical Engineering, University of New Brunswick, Fredericton, NB E3B 5A3, Canada.
- Department of Environmental Science and Engineering, North China Electric Power University, Baoding 071003, China.
| | - Liying Qian
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China.
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