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Faria MJ, González-Méijome JM, Real Oliveira MECD, Carracedo G, Lúcio M. Recent advances and strategies for nanocarrier-mediated topical therapy and theranostic for posterior eye disease. Adv Drug Deliv Rev 2024; 210:115321. [PMID: 38679293 DOI: 10.1016/j.addr.2024.115321] [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: 02/16/2024] [Revised: 04/08/2024] [Accepted: 04/19/2024] [Indexed: 05/01/2024]
Abstract
Posterior eye disorders, such as age-related macular degeneration, diabetic retinopathy, and glaucoma, have a significant impact on human quality of life and are the primary cause of age-related retinal diseases among adults. There is a pressing need for innovative topical approaches to treat posterior eye disorders, as current methods often rely on invasive procedures with inherent risks. Limited success was attained in the realm of topical ophthalmic delivery through non-invasive means. Additionally, there exists a dearth of literature that delves into the potential of this approach for drug delivery and theranostic purposes, or that offers comprehensive design strategies for nanocarrier developers to surmount the significant physiological ocular barriers. This review offers a thorough and up-to-date state-of-the-art overview of 40 studies on therapeutic loaded nanocarriers and theranostic devices that, to the best of our knowledge, represent all successful works that reached posterior eye segments through a topical non-invasive administration. Most importantly, based on the successful literature studies, this review provides a comprehensive summary of the potential design strategies that can be implemented during nanocarrier development to overcome each ocular barrier.
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Affiliation(s)
- Maria João Faria
- Centre of Physics of Minho and Porto Universities (CF-UM-UP), Universidade do Minho, Campus de Gualtar, Braga 4710-057, Portugal.
| | - José M González-Méijome
- Centre of Physics of Minho and Porto Universities (CF-UM-UP), Universidade do Minho, Campus de Gualtar, Braga 4710-057, Portugal; CEORLab - Clinical and Experimental Optometry Research Lab, Centre of Physics, Universidade do Minho, Campus de Gualtar, Braga 4710-057, Portugal.
| | - M Elisabete C D Real Oliveira
- Centre of Physics of Minho and Porto Universities (CF-UM-UP), Universidade do Minho, Campus de Gualtar, Braga 4710-057, Portugal.
| | - Gonzalo Carracedo
- Department of Optometry and Vision, Faculty of Optics and Optometry, University Complutense of Madrid, C/Arcos de Jalon 118, Madrid 28037, Spain.
| | - Marlene Lúcio
- Centre of Physics of Minho and Porto Universities (CF-UM-UP), Universidade do Minho, Campus de Gualtar, Braga 4710-057, Portugal; CBMA - Centre of Molecular and Environmental Biology, Department of Biology, Universidade do Minho, Campus de Gualtar, Braga 4710-057, Portugal.
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Signorini S, Delledonne A, Pescina S, Bianchera A, Sissa C, Vivero-Lopez M, Alvarez-Lorenzo C, Santi P, Padula C, Nicoli S. A sterilizable platform based on crosslinked xanthan gum for controlled-release of polymeric micelles: Ocular application for the delivery of neuroprotective compounds to the posterior eye segment. Int J Pharm 2024; 657:124141. [PMID: 38677392 DOI: 10.1016/j.ijpharm.2024.124141] [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: 03/19/2024] [Revised: 04/17/2024] [Accepted: 04/18/2024] [Indexed: 04/29/2024]
Abstract
TPGS (D-α-tocopheryl polyethylene glycol 1000 succinate) polymeric micelles show interesting properties for ocular administration thanks to their solubilization capability, nanometric size and tissue penetration ability. However, micelles formulations are generally characterized by low viscosity, poor adhesion and very short retention time at the administration site. Therefore, the idea behind this work is the preparation and characterization of a crosslinked film based on xanthan gum that contains TPGS micelles and is capable of controlling their release. The system was loaded with melatonin and cyclosporin A, neuroprotective compounds to be delivered to the posterior eye segment. Citric acid and heating at different times and temperatures were exploited as crosslinking approach, giving the possibility to tune swelling, micelles release and drug release. The biocompatibility of the platform was confirmed by HET-CAM assay. Ex vivo studies on isolated porcine ocular tissues, conducted using Franz cells and two-photon microscopy, demonstrated the potential of the xanthan gum-based platform and enlightened micelles penetration mechanism. Finally, the sterilization step was approached, and a process to simultaneously crosslink and sterilize the platform was developed.
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Affiliation(s)
- Sara Signorini
- ADDRes Lab, Department of Food and Drug, University of Parma, Parco Area delle Scienze 27/a, 43124 Parma, Italy.
| | - Andrea Delledonne
- Department of Chemistry, Life Science and Environmental Sustainability, University of Parma, Parco Area delle Scienze 17/a, 43124 Parma, Italy.
| | - Silvia Pescina
- ADDRes Lab, Department of Food and Drug, University of Parma, Parco Area delle Scienze 27/a, 43124 Parma, Italy.
| | - Annalisa Bianchera
- ADDRes Lab, Department of Food and Drug, University of Parma, Parco Area delle Scienze 27/a, 43124 Parma, Italy.
| | - Cristina Sissa
- Department of Chemistry, Life Science and Environmental Sustainability, University of Parma, Parco Area delle Scienze 17/a, 43124 Parma, Italy.
| | - Maria Vivero-Lopez
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, I+D Farma (GI-1645), Facultad de Farmacia, Instituto de Materiales (iMATUS) and Health Research Insititute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain.
| | - Carmen Alvarez-Lorenzo
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, I+D Farma (GI-1645), Facultad de Farmacia, Instituto de Materiales (iMATUS) and Health Research Insititute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain.
| | - Patrizia Santi
- ADDRes Lab, Department of Food and Drug, University of Parma, Parco Area delle Scienze 27/a, 43124 Parma, Italy.
| | - Cristina Padula
- ADDRes Lab, Department of Food and Drug, University of Parma, Parco Area delle Scienze 27/a, 43124 Parma, Italy.
| | - Sara Nicoli
- ADDRes Lab, Department of Food and Drug, University of Parma, Parco Area delle Scienze 27/a, 43124 Parma, Italy.
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Liu Y, Xu H, Yan N, Tang Z, Wang Q. Research progress of ophthalmic preparations of immunosuppressants. Drug Deliv 2023; 30:2175925. [PMID: 36762580 DOI: 10.1080/10717544.2023.2175925] [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: 02/11/2023] Open
Abstract
Immune ophthalmopathy is a collection of autoimmune eye diseases. Immunosuppressants are drugs that can inhibit the body's immune response. Considering drug side effects such as hepatorenal toxicity and the unique structure of the eye, incorporating immunosuppressants into ophthalmic nanodrug delivery systems, such as microparticles, nanoparticles, liposomes, micelles, implants, and in situ gels, has the advantages of improving solubility, increasing bioavailability, high eye-target specificity, and reducing side effects. This study reviews recent research and applications of this aspect to provide a reference for the development of an ophthalmic drug delivery system.
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Affiliation(s)
- Ye Liu
- School of Pharmacy, Hangzhou Medical College, Hangzhou, Zhejiang, 310013, China
| | - Haonan Xu
- School of Pharmacy, Hangzhou Medical College, Hangzhou, Zhejiang, 310013, China
| | - Na Yan
- Department of Pharmacy, Jin Hua Municipal Maternal and Child Health Care Hospital, Jinhua, Zhejiang, 321000, China
| | - Zhan Tang
- School of Pharmacy, Hangzhou Medical College, Hangzhou, Zhejiang, 310013, China.,Key Laboratory of Neuropsychiatric Drug Research of Zhejiang Province, Hangzhou Medical College, Hangzhou, Zhejiang, 310013, China
| | - Qiao Wang
- School of Pharmacy, Hangzhou Medical College, Hangzhou, Zhejiang, 310013, China.,Key Laboratory of Neuropsychiatric Drug Research of Zhejiang Province, Hangzhou Medical College, Hangzhou, Zhejiang, 310013, China
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Toffoletto N, Saramago B, Serro AP, Chauhan A. A Physiology-Based Mathematical Model to Understand Drug Delivery from Contact Lenses to the Back of the Eye. Pharm Res 2023; 40:1939-1951. [PMID: 37498499 PMCID: PMC10447275 DOI: 10.1007/s11095-023-03560-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Accepted: 07/02/2023] [Indexed: 07/28/2023]
Abstract
OBJECTIVE Therapeutic contact lenses, able to store drug and deliver it to the eye surface in a sustained fashion, gained interest as an effective and patient-friendly alternative to eye drops. Recent animal studies also demonstrated the presence of therapeutic drug levels in the back of the eye after wearing drug-loaded contact lenses, thus opening the possibility of treating the posterior segment without need of invasive intraocular injections. The drug pathways from contact lenses to the back of the eye require further investigation. METHODS A mechanistic mathematical model was developed to evaluate the drug concentration over time in the tears, sclera and choroid, retina, aqueous humor and vitreous humor after the application of a therapeutic contact lens. The main drug transport mechanisms of the eye and the barrier properties of the different tissues were included in the model. Validation was performed by comparison with experimental data in literature. RESULTS The model predictions of drug concentration over time reflected the experimental data both in the anterior and posterior segment of the eye. The model can differentiate between contributions to transport from different pathways. CONCLUSIONS The model constitutes a first step towards the possibility of predicting the ocular drug distribution and the treatment efficacy in the early stage of contact lens development, and it may help reduce both the need for in vivo tests (with ethical and economic advantages) and the gap between the lens design and clinical application. It also allows for an improved understanding of drug transport in the eye.
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Affiliation(s)
- Nadia Toffoletto
- Centro de Química Estrutural, Institute of Molecular Sciences, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001, Lisbon, Portugal.
- Centro de Investigação Interdisciplinar Egas Moniz, Instituto Universitário Egas Moniz, Quinta da Granja, Monte de Caparica, 2829-511, Caparica, Portugal.
| | - Benilde Saramago
- Centro de Química Estrutural, Institute of Molecular Sciences, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001, Lisbon, Portugal
| | - Ana Paula Serro
- Centro de Química Estrutural, Institute of Molecular Sciences, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001, Lisbon, Portugal
- Centro de Investigação Interdisciplinar Egas Moniz, Instituto Universitário Egas Moniz, Quinta da Granja, Monte de Caparica, 2829-511, Caparica, Portugal
| | - Anuj Chauhan
- Chemical and Biological Engineering Department, Colorado School of Mines, Golden, CO, 80401, USA
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Wei D, Pu N, Li SY, Zhao N, Song ZM, Tao Y. Application of Hydrogels in the Device of Ophthalmic Iontophoresis: Theory, Developments and Perspectives. Gels 2023; 9:519. [PMID: 37504398 PMCID: PMC10379725 DOI: 10.3390/gels9070519] [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: 05/30/2023] [Revised: 06/20/2023] [Accepted: 06/22/2023] [Indexed: 07/29/2023] Open
Abstract
The human eye is a consolidated organ with delicate structures and unique immune privileges. Ocular diseases are intractable due to the intrinsic biological barriers within the eyeball. Hydrogels are excellent drug-carrying substances with soft material and excellent properties. They have been extensively used to deliver drugs into ocular tissue via iontophoresis devices. Ophthalmic iontophoresis is an electrochemical technique using tiny electrical currents to deliver drugs into the eye non-invasively. The early infantile iontophoresis technique often required long applying time to achieve therapeutic dose in the posterior ocular segment. The potential limitations in the initial drug concentration and the maximum safe currents would also impede the efficiency and safety of iontophoresis. Moreover, the poor patient compliance always leads to mechanical damage to the cornea and sclera during application. Advantageously, the flexible drug-carrying hydrogel can be in direct contact with the eye during iontophoresis, thereby reducing mechanical damage to the ocular surface. Moreover, the water absorption and adjustable permeability of hydrogels can reduce the electrochemical (EC) reactions and enhance the efficiency of iontophoresis. In this review, we focus on recent developments of hydrogels iontophoresis in ophthalmologic practice. Refinements of the knowledge would provide an outlook for future application of hydrogels in treating ocular disease.
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Affiliation(s)
- Dong Wei
- Henan Eye Institute, Henan Eye Hospital, Henan Provincial People's Hospital (People's Hospital of Zhengzhou University), Zhengzhou 450003, China
- College of Medicine, Zhengzhou University, Zhengzhou 450001, China
| | - Ning Pu
- Henan Eye Institute, Henan Eye Hospital, Henan Provincial People's Hospital (People's Hospital of Zhengzhou University), Zhengzhou 450003, China
- College of Medicine, Zhengzhou University, Zhengzhou 450001, China
| | - Si-Yu Li
- College of Medicine, Zhengzhou University, Zhengzhou 450001, China
| | - Na Zhao
- College of Medicine, Zhengzhou University, Zhengzhou 450001, China
| | - Zong-Ming Song
- Henan Eye Institute, Henan Eye Hospital, Henan Provincial People's Hospital (People's Hospital of Zhengzhou University), Zhengzhou 450003, China
| | - Ye Tao
- Henan Eye Institute, Henan Eye Hospital, Henan Provincial People's Hospital (People's Hospital of Zhengzhou University), Zhengzhou 450003, China
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Cong YY, Fan B, Zhang ZY, Li GY. Implantable sustained-release drug delivery systems: a revolution for ocular therapeutics. Int Ophthalmol 2023:10.1007/s10792-023-02637-x. [PMID: 36715956 DOI: 10.1007/s10792-023-02637-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Accepted: 01/10/2023] [Indexed: 01/31/2023]
Abstract
PURPOSE Due to the inimitable anatomical structure of the eyeball and various physiological barriers, conventional ocular local administration is often complicated by apparent shortcomings, such as limited bioavailability and short drug retention. Thus, developing methods for sustainable, safe and efficient drug delivery to ocular target sites has long been an urgent need. This study briefly summarizes the barriers to ocular drug administration and various ocular drug delivery routes and highlights recent progress in ocular implantable sustained-release drug delivery systems (DDSs) to provide literature evidence for developing novel ocular implants for sustained drug delivery. METHODS We conducted a comprehensive search of studies on ocular implantable sustained-release DDSs in PubMed and Web of Science using the following keywords: ocular, implantable and drug delivery system. More than 400 papers were extracted. Publications focused on sustained and controlled drug release were primarily considered. Experimental articles involving DDSs that cannot be implanted into the eye through surgeries and cannot be inserted into ocular tissues in solid form were excluded. Approximately 143 publications were reviewed to summarize the most current information on the subject. RESULTS In recent years, numerous ocular sustained-release DDSs using lipids, nanoparticles and hydrogels as carriers have emerged. With unique properties and systematic design, ocular implantable sustained-release DDSs are able to continuously maintain drug release, effectively sustain the therapeutic concentration in target tissues, and substantially enhance the therapeutic efficacy. Nevertheless, few ocular implantable sustained-release DDSs have been available in clinical use. CONCLUSIONS Ocular implantable sustained-release DDSs have become a new focus in the field of ocular drug development through unique designs and improvements in the materials of drug carriers, administration methods and dosage forms. With more ocular implantable sustained-release DDSs being commercialized, ocular therapeutics may be revolutionized.
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Affiliation(s)
- Yun-Yi Cong
- Department of Ophthalmology, The Second Hospital of Jilin University, Changchun, 130000, China
| | - Bin Fan
- Department of Ophthalmology, The Second Hospital of Jilin University, Changchun, 130000, China
| | - Zi-Yuan Zhang
- Department of Ophthalmology, The Second Hospital of Jilin University, Changchun, 130000, China
| | - Guang-Yu Li
- Department of Ophthalmology, The Second Hospital of Jilin University, Changchun, 130000, China.
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Injectable PTHF-based thermogelling polyurethane implants for long-term intraocular application. Biomater Res 2022; 26:70. [PMID: 36461130 PMCID: PMC9716749 DOI: 10.1186/s40824-022-00316-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2022] [Accepted: 11/06/2022] [Indexed: 12/04/2022] Open
Abstract
BACKGROUND Hydrogels show great potential to be used for intraocular applications due to their high-water content and similarity to the native vitreous. Injectable thermosensitive hydrogels through a small-bore needle can be used as a delivery system for drugs or a tamponading substitute to treat posterior eye diseases with clear clinical potential. However, none of the currently available thermosensitive hydrogels can provide intraocular support for up to 3 months or more. METHOD In this study, an injectable polytetrahydrofuran (PTHF)-based thermosensitive hydrogel was synthesized by polyurethane reaction. We examined the injectability, rheological properties, microstructure, cytotoxicity, and in vivo compatibility and stability of the hydrogels in rabbit eyes. RESULTS We found that the PTHF block type and PTHF component ratio could modulate thermogelation properties of the polyurethane polymers. The PTHF-based hydrogel implants retained normal retinal structure and function. Incorporating bioinert PTHF generated highly biocompatible and more stable thermogels in the vitreous cavity, with gel networks and the presence of polymer still observed after 3 months when other thermogels would have been completely cleared. Moreover, despite lacking hydrolytically cleavable linkages, the polymers could be most naturally removed from the native vitreous by bio-erosion without additional surgical interventions. CONCLUSION Our findings suggest the potential of incorporating hydrophobic bioinert blocks to enhance the in vivo stability of supramolecularly associated hydrogels for long-term intraocular applications.
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Shukla S, Huston RH, Cox BD, Satoskar AR, Narayan RJ. Transdermal delivery via medical device technologies. Expert Opin Drug Deliv 2022; 19:1505-1519. [PMID: 36222232 DOI: 10.1080/17425247.2022.2135503] [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: 11/04/2022]
Abstract
INTRODUCTION Despite their effectiveness and indispensability, many drugs are poorly solvated in aqueous solutions. Over recent decades, the need for targeted drug delivery has led to the development of pharmaceutical formulations with enhanced lipid solubility to improve their delivery properties. Therefore, a dependable approach for administering lipid-soluble drugs needs to be developed. AREAS COVERED The advent of 3D printing or additive manufacturing (AM) has revolutionized the development of medical devices, which can effectively enable the delivery of lipophilic drugs to the targeted tissues. This review focuses on the use of microneedles and iontophoresis for transdermal drug delivery. Microneedle arrays, inkjet printing, and fused deposition modeling have emerged as valuable approaches for delivering several classes of drugs. In addition, iontophoresis has been successfully employed for the effective delivery of macromolecular drugs. EXPERT OPINION Microneedle arrays, inkjet printing, and fused deposition are potentially useful for many drug delivery applications; however, the clinical and commercial adoption rates of these technologies are relatively low. Additional efforts is needed to enable the pharmaceutical community to fully realize the benefits of these technologies.
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Affiliation(s)
- Shubhangi Shukla
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, USA
| | - Ryan H Huston
- Department of Microbiology, The Ohio State University, 484 W. 12 Ave, Columbus, OH 43210, USA
| | - Blake D Cox
- Division of Anatomy, The Ohio State University, 370 W. 9th Avenue, Columbus, OH 43210, USA
| | - Abhay R Satoskar
- Departments of Pathology and Microbiology, Wexner Medical Center, The Ohio State University, USA
| | - Roger J Narayan
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, USA
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Yang C, Yang J, Lu A, Gong J, Yang Y, Lin X, Li M, Xu H. Nanoparticles in ocular applications and their potential toxicity. Front Mol Biosci 2022; 9:931759. [PMID: 35911959 PMCID: PMC9334523 DOI: 10.3389/fmolb.2022.931759] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Accepted: 06/27/2022] [Indexed: 11/13/2022] Open
Abstract
Nanotechnology has been developed rapidly in recent decades and widely applied in ocular disease therapy. Nano-drug delivery systems overcome the bottlenecks of current ophthalmic drug delivery and are characterized with strong biocompatibility, stability, efficiency, sustainability, controllability, and few side effects. Nanoparticles have been identified as a promising and generally safe ophthalmic drug-delivery system based on the toxicity assessment in animals. Previous studies have found that common nanoparticles can be toxic to the cornea, conjunctiva, and retina under certain conditions. Because of the species differences between humans and animals, advanced in vitro cell culture techniques, such as human organoids, can mimic the human organism to a certain extent, bringing nanoparticle toxicity assessment to a new stage. This review summarizes the advanced application of nanoparticles in ocular drug delivery and the potential toxicity, as well as some of the current challenges and future opportunities in nanotoxicological evaluation.
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Affiliation(s)
- Cao Yang
- Southwest Hospital/Southwest Eye Hospital, Third Military Medical University (Army Medical University), Chongqing, China
- Key Lab of Visual Damage and Regeneration & Restoration of Chongqing, Chongqing, China
| | - Junling Yang
- Southwest Hospital/Southwest Eye Hospital, Third Military Medical University (Army Medical University), Chongqing, China
- Key Lab of Visual Damage and Regeneration & Restoration of Chongqing, Chongqing, China
| | - Ao Lu
- Southwest Hospital/Southwest Eye Hospital, Third Military Medical University (Army Medical University), Chongqing, China
- Key Lab of Visual Damage and Regeneration & Restoration of Chongqing, Chongqing, China
| | - Jing Gong
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, China
| | - Yuanxing Yang
- Southwest Hospital/Southwest Eye Hospital, Third Military Medical University (Army Medical University), Chongqing, China
- Key Lab of Visual Damage and Regeneration & Restoration of Chongqing, Chongqing, China
| | - Xi Lin
- Southwest Hospital/Southwest Eye Hospital, Third Military Medical University (Army Medical University), Chongqing, China
- Key Lab of Visual Damage and Regeneration & Restoration of Chongqing, Chongqing, China
| | - Minghui Li
- Southwest Hospital/Southwest Eye Hospital, Third Military Medical University (Army Medical University), Chongqing, China
- Key Lab of Visual Damage and Regeneration & Restoration of Chongqing, Chongqing, China
- *Correspondence: Minghui Li, ; Haiwei Xu,
| | - Haiwei Xu
- Southwest Hospital/Southwest Eye Hospital, Third Military Medical University (Army Medical University), Chongqing, China
- Key Lab of Visual Damage and Regeneration & Restoration of Chongqing, Chongqing, China
- *Correspondence: Minghui Li, ; Haiwei Xu,
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Wang Y, Wang C. Novel Eye Drop Delivery Systems: Advance on Formulation Design Strategies Targeting Anterior and Posterior Segments of the Eye. Pharmaceutics 2022; 14:pharmaceutics14061150. [PMID: 35745723 PMCID: PMC9229693 DOI: 10.3390/pharmaceutics14061150] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 05/18/2022] [Accepted: 05/25/2022] [Indexed: 11/30/2022] Open
Abstract
Eye drops are the most common and convenient route of topical administration and the first choice of treatment for many ocular diseases. However, the ocular bioavailability of traditional eye drops (i.e., solutions, suspensions, and ointments) is very low because of ophthalmic physiology and barriers, which greatly limits their therapeutic effect. Over the past few decades, many novel eye drop delivery systems, such as prodrugs, cyclodextrins, in situ gels, and nanoparticles, have been developed to improve ophthalmic bioavailability. These novel eye drop delivery systems have good biocompatibility, adhesion, and propermeation properties and have shown superior performance and efficacy over traditional eye drops. Therefore, the purpose of this review was to systematically present the research progress on novel eye drop delivery systems and provide a reference for the development of dosage form, clinical application, and commercial transformation of eye drops.
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Zingale E, Romeo A, Rizzo S, Cimino C, Bonaccorso A, Carbone C, Musumeci T, Pignatello R. Fluorescent Nanosystems for Drug Tracking and Theranostics: Recent Applications in the Ocular Field. Pharmaceutics 2022; 14:pharmaceutics14050955. [PMID: 35631540 PMCID: PMC9147643 DOI: 10.3390/pharmaceutics14050955] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 04/23/2022] [Accepted: 04/25/2022] [Indexed: 12/14/2022] Open
Abstract
The greatest challenge associated with topical drug delivery for the treatment of diseases affecting the posterior segment of the eye is to overcome the poor bioavailability of the carried molecules. Nanomedicine offers the possibility to overcome obstacles related to physiological mechanisms and ocular barriers by exploiting different ocular routes. Functionalization of nanosystems by fluorescent probes could be a useful strategy to understand the pathway taken by nanocarriers into the ocular globe and to improve the desired targeting accuracy. The application of fluorescence to decorate nanocarrier surfaces or the encapsulation of fluorophore molecules makes the nanosystems a light probe useful in the landscape of diagnostics and theranostics. In this review, a state of the art on ocular routes of administration is reported, with a focus on pathways undertaken after topical application. Numerous studies are reported in the first section, confirming that the use of fluorescent within nanoparticles is already spread for tracking and biodistribution studies. The first section presents fluorescent molecules used for tracking nanosystems’ cellular internalization and permeation of ocular tissues; discussions on the classification of nanosystems according to their nature (lipid-based, polymer-based, metallic-based and protein-based) follows. The following sections are dedicated to diagnostic and theranostic uses, respectively, which represent an innovation in the ocular field obtained by combining dual goals in a single administration system. For its great potential, this application of fluorescent nanoparticles would experience a great development in the near future. Finally, a brief overview is dedicated to the use of fluorescent markers in clinical trials and the market in the ocular field.
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Affiliation(s)
- Elide Zingale
- Department of Pharmaceutical and Health Sciences, University of Catania, 95124 Catania, Italy; (E.Z.); (A.R.); (S.R.); (C.C.); (A.B.); (C.C.); (T.M.)
| | - Alessia Romeo
- Department of Pharmaceutical and Health Sciences, University of Catania, 95124 Catania, Italy; (E.Z.); (A.R.); (S.R.); (C.C.); (A.B.); (C.C.); (T.M.)
| | - Salvatore Rizzo
- Department of Pharmaceutical and Health Sciences, University of Catania, 95124 Catania, Italy; (E.Z.); (A.R.); (S.R.); (C.C.); (A.B.); (C.C.); (T.M.)
| | - Cinzia Cimino
- Department of Pharmaceutical and Health Sciences, University of Catania, 95124 Catania, Italy; (E.Z.); (A.R.); (S.R.); (C.C.); (A.B.); (C.C.); (T.M.)
| | - Angela Bonaccorso
- Department of Pharmaceutical and Health Sciences, University of Catania, 95124 Catania, Italy; (E.Z.); (A.R.); (S.R.); (C.C.); (A.B.); (C.C.); (T.M.)
- NANO-i—Research Center for Ocular Nanotechnology, University of Catania, 95124 Catania, Italy
| | - Claudia Carbone
- Department of Pharmaceutical and Health Sciences, University of Catania, 95124 Catania, Italy; (E.Z.); (A.R.); (S.R.); (C.C.); (A.B.); (C.C.); (T.M.)
- NANO-i—Research Center for Ocular Nanotechnology, University of Catania, 95124 Catania, Italy
| | - Teresa Musumeci
- Department of Pharmaceutical and Health Sciences, University of Catania, 95124 Catania, Italy; (E.Z.); (A.R.); (S.R.); (C.C.); (A.B.); (C.C.); (T.M.)
- NANO-i—Research Center for Ocular Nanotechnology, University of Catania, 95124 Catania, Italy
| | - Rosario Pignatello
- Department of Pharmaceutical and Health Sciences, University of Catania, 95124 Catania, Italy; (E.Z.); (A.R.); (S.R.); (C.C.); (A.B.); (C.C.); (T.M.)
- NANO-i—Research Center for Ocular Nanotechnology, University of Catania, 95124 Catania, Italy
- Correspondence:
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12
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Razavi MS, Ebrahimnejad P, Fatahi Y, D’Emanuele A, Dinarvand R. Recent Developments of Nanostructures for the Ocular Delivery of Natural Compounds. Front Chem 2022; 10:850757. [PMID: 35494641 PMCID: PMC9043530 DOI: 10.3389/fchem.2022.850757] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2022] [Accepted: 03/11/2022] [Indexed: 12/12/2022] Open
Abstract
Ocular disorders comprising various diseases of the anterior and posterior segments are considered as the main reasons for blindness. Natural products have been identified as potential treatments for ocular diseases due to their anti-oxidative, antiangiogenic, and anti-inflammatory effects. Unfortunately, most of these beneficial compounds are characterised by low solubility which results in low bioavailability and rapid systemic clearance thus requiring frequent administration or requiring high doses, which hinders their therapeutic applications. Additionally, the therapeutic efficiency of ocular drug delivery as a popular route of drug administration for the treatment of ocular diseases is restricted by various anatomical and physiological barriers. Recently, nanotechnology-based strategies including polymeric nanoparticles, micelles, nanofibers, dendrimers, lipid nanoparticles, liposomes, and niosomes have emerged as promising approaches to overcome limitations and enhance ocular drug bioavailability by effective delivery to the target sites. This review provides an overview of nano-drug delivery systems of natural compounds such as thymoquinone, catechin, epigallocatechin gallate, curcumin, berberine, pilocarpine, genistein, resveratrol, quercetin, naringenin, lutein, kaempferol, baicalin, and tetrandrine for ocular applications. This approach involves increasing drug concentration in the carriers to enhance drug movement into and through the ocular barriers.
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Affiliation(s)
- Malihe Sadat Razavi
- Department of Pharmaceutics, Faculty of Pharmacy, Mazandaran University of Medical Sciences, Sari, Iran
- Nanotechnology Research Centre, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Pedram Ebrahimnejad
- Department of Pharmaceutics, Faculty of Pharmacy, Mazandaran University of Medical Sciences, Sari, Iran
- Pharmaceutical Science Research Center, Hemoglobinopathy Institute, Mazandaran University of Medical Sciences, Sari, Iran
| | - Yousef Fatahi
- Nanotechnology Research Centre, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Antony D’Emanuele
- Leicester School of Pharmacy, De Montfort University, Leicester, United Kingdom
| | - Rassoul Dinarvand
- Nanotechnology Research Centre, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
- Leicester School of Pharmacy, De Montfort University, Leicester, United Kingdom
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13
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Insight into the in vivo fate of intravenous herpetrione amorphous nanosuspensions by aggregation-caused quenching probes. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.03.108] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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14
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Khan KU, Minhas MU, Badshah SF, Suhail M, Ahmad A, Ijaz S. Overview of nanoparticulate strategies for solubility enhancement of poorly soluble drugs. Life Sci 2022; 291:120301. [PMID: 34999114 DOI: 10.1016/j.lfs.2022.120301] [Citation(s) in RCA: 56] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 12/27/2021] [Accepted: 01/01/2022] [Indexed: 12/20/2022]
Abstract
Poor aqueous solubility and poor bioavailability are major issues with many pharmaceutical industries. By some estimation, 70-90% drug candidates in development stage while up-to 40% of the marketed products are poorly soluble which leads to low bioavailability, reduced therapeutic effects and dosage escalation. That's why solubility is an important factor to consider during design and manufacturing of the pharmaceutical products. To-date, various strategies have been explored to tackle the issue of poor solubility. This review article focuses the updated overview of commonly used macro and nano drug delivery systems and techniques such as micronization, solid dispersion (SD), supercritical fluid (SCF), hydrotropy, co-solvency, micellar solubilization, cryogenic technique, inclusion complex formation-based techniques, nanosuspension, solid lipid nanoparticles, and nanogels/nanomatrices explored for solubility enhancement of poorly soluble drugs. Among various techniques, nanomatrices were found a promising and impeccable strategy for solubility enhancement of poorly soluble drugs. This article also describes the mechanism of action of each technique used in solubilization enhancement.
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Affiliation(s)
- Kifayat Ullah Khan
- Department of Pharmaceutics, Faculty of Pharmacy, The Islamia University of Bahawalpur, 63100, Punjab, Pakistan; Quaid-e-Azam College of Pharmacy, Sahiwal, Punjab, Pakistan
| | - Muhammad Usman Minhas
- College of Pharmacy, University of Sargodha, University Road, Sargodha City, Punjab, Pakistan.
| | - Syed Faisal Badshah
- Department of Pharmaceutics, Faculty of Pharmacy, The Islamia University of Bahawalpur, 63100, Punjab, Pakistan
| | - Muhammad Suhail
- School of Pharmacy, Kaohsiung Medical University, 100 Shih-Chuan Ist Road, Kaohsiung City 807, Taiwan, ROC
| | - Aousaf Ahmad
- Department of Pharmaceutics, Faculty of Pharmacy, The Islamia University of Bahawalpur, 63100, Punjab, Pakistan; Quaid-e-Azam College of Pharmacy, Sahiwal, Punjab, Pakistan
| | - Shakeel Ijaz
- Department of Pharmaceutics, Faculty of Pharmacy, The Islamia University of Bahawalpur, 63100, Punjab, Pakistan; Quaid-e-Azam College of Pharmacy, Sahiwal, Punjab, Pakistan
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15
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Suri R, Neupane YR, Mehra N, Nematullah M, Khan F, Alam O, Iqubal A, Jain GK, Kohli K. Sirolimus loaded chitosan functionalized poly (lactic-co-glycolic acid) (PLGA) nanoparticles for potential treatment of age-related macular degeneration. Int J Biol Macromol 2021; 191:548-559. [PMID: 34536476 DOI: 10.1016/j.ijbiomac.2021.09.069] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 09/04/2021] [Accepted: 09/12/2021] [Indexed: 12/21/2022]
Abstract
The usefulness of sirolimus (SIR) in the treatment of diseases that involve retinal degeneration like age-related macular degeneration (AMD) has been well documented. However, the problem still remains probably owing to the peculiar environment of the eye and/or unfavourable physiochemical profile of SIR. In the present work, we aimed to fabricate sirolimus loaded PLGA nanoparticles (SIR-PLGA-NP) and chitosan decorated PLGA nanoparticles (SIR-CH-PLGA-NP) to be administered via non-invasive subconjunctival route. Both the nanoparticles were characterized in terms of size, zeta potential, DSC, FTIR and XRD analysis. Quality by Design (QbD) approach was employed during the preparation of nanoparticles and the presence of chitosan coating was confirmed through thermogravimetric analysis and contact angle studies. Cationic polymer modification showed sustained in-vitro SIR release and enhanced ex-vivo scleral permeation and penetration. Further, SIR-CH-PLGA-NP revealed enhanced cellular uptake and thus, reduced lipopolysaccharide (LPS)-induced free-radicals generation by RAW 264.7 cells. The prepared nanoparticles were devoid of residual solvent and were found to be safe in HET-CAM analysis, RBCs damage analysis and histopathology studies. Moreover, high anti-angiogenic potential was observed in SIR-CH-PLGA-NP compared with SIR-PLGA-NP in chorioallantoic membrane (CAM) test. Overall, the current work opens up an avenue for further investigation of CH-PLGA-NP as SIR nanocarrier in the treatment of AMD.
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Affiliation(s)
- Reshal Suri
- Department of Pharmaceutics, School of Pharmaceutical Education & Research, Jamia Hamdard, New Delhi 110062, India
| | - Yub Raj Neupane
- Department of Pharmacy, National University of Singapore, 117559, Singapore.
| | - Nikita Mehra
- Department of Pharmaceutics, School of Pharmaceutical Education & Research, Jamia Hamdard, New Delhi 110062, India
| | - Md Nematullah
- Department of Biochemistry, School of Chemical and Life Sciences, Jamia Hamdard, New Delhi 110062, India
| | - Farah Khan
- Department of Biochemistry, School of Chemical and Life Sciences, Jamia Hamdard, New Delhi 110062, India
| | - Ozair Alam
- Medicinal Chemistry and Molecular Modelling Lab, Department of Pharmaceutical Chemistry, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi 110062, India
| | - Ashif Iqubal
- Department of Pharmacology, School of Pharmaceutical Education & Research, Jamia Hamdard, New Delhi 110062, India
| | - Gaurav Kumar Jain
- Department of Pharmaceutics, Delhi Pharmaceutical Science and Research University, Pushp Vihar, New Delhi 110017, India
| | - Kanchan Kohli
- Department of Pharmaceutics, School of Pharmaceutical Education & Research, Jamia Hamdard, New Delhi 110062, India.
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16
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Kattar A, Concheiro A, Alvarez-Lorenzo C. Diabetic eye: associated diseases, drugs in clinic, and role of self-assembled carriers in topical treatment. Expert Opin Drug Deliv 2021; 18:1589-1607. [PMID: 34253138 DOI: 10.1080/17425247.2021.1953466] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Introduction: Diabetes is a pandemic disease that causes relevant ocular pathologies. Diabetic retinopathy, macular edema, cataracts, glaucoma, or keratopathy strongly impact the quality of life of the patients. In addition to glycemic control, intense research is devoted to finding more efficient ocular drugs and improved delivery systems that can overcome eye barriers. Areas covered: The aim of this review is to revisit first the role of diabetes in the development of chronic eye diseases. Then, commercially available drugs and new candidates in clinical trials are tackled together with the pros and cons of their administration routes. Subsequent sections deal with self-assembled drug carriers suitable for eye instillation combining patient-friendly administration with high ocular bioavailability. Performance of topically administered polymeric micelles, liposomes, and niosomes for the management of diabetic eye diseases is analyzed in the light of ex vivo and in vivo results and outcomes of clinical trials. Expert opinion: Self-assembled carriers are being shown useful for efficient delivery of not only a variety of small drugs but also macromolecules (e.g. antibodies) and genes. Successful design of drug carriers may offer alternatives to intraocular injections and improve the treatment of both anterior and posterior segments diabetic eye diseases.
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Affiliation(s)
- Axel Kattar
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, I+D Farma Group (GI-1645), Facultad de Farmacia and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, Santiago de Compostela, Spain
| | - Angel Concheiro
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, I+D Farma Group (GI-1645), Facultad de Farmacia and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, Santiago de Compostela, Spain
| | - Carmen Alvarez-Lorenzo
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, I+D Farma Group (GI-1645), Facultad de Farmacia and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, Santiago de Compostela, Spain
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17
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18
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Tawfik M, Hadlak S, Götze C, Sokolov M, Kulikov P, Kuskov A, Shtilman M, Sabel BA, Henrich-Noack P. Live In-Vivo Neuroimaging Reveals the Transport of Lipophilic Cargo Through the Blood-Retina Barrier with Modified Amphiphilic Poly-N-Vinylpyrrolidone Nanoparticles. J Biomed Nanotechnol 2021; 17:846-858. [PMID: 34082871 DOI: 10.1166/jbn.2021.3073] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The blood-retina barrier (BRB), analogous to the blood-brain barrier, is a major hurdle for the passage of drugs from the blood to the central nervous system. Here, we designed polymeric nanoparticles from amphiphilic poly-/V-vinylpyrrolidone (Amph-PVP NPs) as a new carrier-system and investigated their ability to pass the BRB using a live In-Vivo neuroimaging system for the retina in rats and ex-vivo wholemounted retinae preparation. Amph-PVP NPs were loaded with hydrophobic fluorescent markers as a surrogate for hydrophobic drugs. Linking these NPs with the hydrophobic fluorescence marker Carboxyfluorescein-succinimidyl-ester (CFSE) to the surface, induced the passage of the cargo into the retina tissue. In particular, we observed a substantial internalization of the CFSE-linked NPs into blood cells. We propose surface- modified Amph-PVP NPs as a potential new nano-carrier platform to target posterior eye and potentially brain diseases while camouflaged by blood cells.
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Affiliation(s)
- Mohamed Tawfik
- Institute of Medical Psychology, Otto von Guericke University of Magdeburg, Leipzigerstr. 44, 39120, Magdeburg, Germany
| | | | | | - Maxim Sokolov
- Institute of Medical Psychology, Otto von Guericke University of Magdeburg, Leipzigerstr. 44, 39120, Magdeburg, Germany
| | - Pavel Kulikov
- Department of Biomaterials, Dmitry Mendeleev University of Chemical Technology of Russia, Miusskaya sq. 9, 125047, Moscow, Russia
| | - Andrey Kuskov
- Department of Biomaterials, Dmitry Mendeleev University of Chemical Technology of Russia, Miusskaya sq. 9, 125047, Moscow, Russia
| | - Mikhail Shtilman
- Department of Biomaterials, Dmitry Mendeleev University of Chemical Technology of Russia, Miusskaya sq. 9, 125047, Moscow, Russia
| | - Bernhard A Sabel
- Institute of Medical Psychology, Otto von Guericke University of Magdeburg, Leipzigerstr. 44, 39120, Magdeburg, Germany
| | - Petra Henrich-Noack
- Institute of Medical Psychology, Otto von Guericke University of Magdeburg, Leipzigerstr. 44, 39120, Magdeburg, Germany
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19
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Mallandrich M, Calpena AC, Clares B, Parra A, García ML, Soriano JL, Fernández-Campos F. Nano-engineering of ketorolac tromethamine platforms for ocular treatment of inflammatory disorders. Nanomedicine (Lond) 2021; 16:401-414. [PMID: 33586454 DOI: 10.2217/nnm-2020-0403] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Aim: The development and optimization of Ketorolac tromethamine-loaded polylactic-co-glycolic acid nanoparticles (KT-NPs) for the treatment of inflammatory processes of the eye. Materials & methods: KT-NPs were developed by factorial design and characterized by assessing their physicochemical properties. Biopharmaceutical behavior studies, ocular tolerance, anti-inflammatory efficacy and bioavailability tests were performed on pigs. Results: Optimized KT-NPs of 112 nm, narrow distribution with encapsulation efficiency near 100% were obtained. KT release followed the Weibull model and there was significantly greater retention in the cornea and sclera than in the commercial reference. KT-NPs showed no signs of ocular irritancy and similar anti-inflammatory efficacy to the commercial reference. Conclusion: KT-NPs were a suitable alternative for the treatment of inflammatory disorders of the anterior and posterior segments of the eye as an alternative to conventional topical formulations.
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Affiliation(s)
- Mireia Mallandrich
- Department of Pharmacy & Pharmaceutical Technology & Physical Chemistry, Faculty of Pharmacy & Food Sciences, University of Barcelona, 08028 Barcelona, Spain.,Nanoscience & Nanotechnology Institute (IN2UB), University of Barcelona, 08028 Barcelona, Spain
| | - Ana C Calpena
- Department of Pharmacy & Pharmaceutical Technology & Physical Chemistry, Faculty of Pharmacy & Food Sciences, University of Barcelona, 08028 Barcelona, Spain.,Nanoscience & Nanotechnology Institute (IN2UB), University of Barcelona, 08028 Barcelona, Spain
| | - Beatriz Clares
- Nanoscience & Nanotechnology Institute (IN2UB), University of Barcelona, 08028 Barcelona, Spain.,Department of Pharmacy & Pharmaceutical Technology, Faculty of Pharmacy, University of Granada, 18071 Granada, Spain
| | - Alexander Parra
- Department of Pharmacy & Pharmaceutical Technology & Physical Chemistry, Faculty of Pharmacy & Food Sciences, University of Barcelona, 08028 Barcelona, Spain
| | - María L García
- Department of Pharmacy & Pharmaceutical Technology & Physical Chemistry, Faculty of Pharmacy & Food Sciences, University of Barcelona, 08028 Barcelona, Spain.,Nanoscience & Nanotechnology Institute (IN2UB), University of Barcelona, 08028 Barcelona, Spain
| | - José L Soriano
- Department of Pharmacy & Pharmaceutical Technology, Faculty of Pharmacy, University of Granada, 18071 Granada, Spain
| | - Francisco Fernández-Campos
- Department of Pharmacy & Pharmaceutical Technology & Physical Chemistry, Faculty of Pharmacy & Food Sciences, University of Barcelona, 08028 Barcelona, Spain.,Reig-Jofre Laboratories, Av. de les Flors s/n, 08970 Sant Joan Despí, Spain
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20
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Semi-interpenetrating chitosan/ionic liquid polymer networks as electro-responsive biomaterials for potential wound dressings and iontophoretic applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 121:111798. [PMID: 33579445 DOI: 10.1016/j.msec.2020.111798] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 11/19/2020] [Accepted: 12/05/2020] [Indexed: 12/16/2022]
Abstract
In this work, electro-responsive chitosan/ionic liquid-based hydrogels were synthetized for the first time, envisaging the development of iontophoretic biomaterials for the controlled release/permeation of charged biomolecules. The main goal was to enhance and tune the physicochemical, mechanical, electro-responsive, and haemostatic properties of chitosan-based biomaterials to obtain multi-stimuli responsive (responsive to electrical current, ionic strength, and pH) and mechanically stable hydrogels. To accomplish this objective, polycationic semi-interpenetrating copolymer networks (semi-IPN) were prepared by combining chitosan (CS) and ionic liquid-based polymers and copolymers, namely poly(1-butyl-3-vinylimidazolium chloride) (poly(BVImCl)) and poly(2-hydroxymethyl methacrylate-co-1-butyl-3-vinylimidazolium chloride) (poly(HEMA-co-BVImCl)). Results show that prepared semi-IPNs presented high mechanical stability and were positively charged over a broad pH range, including basic pH. Semi-IPNs also presented faster permeation and release rates of lidocaine hydrochloride (LH), under external electrical stimulus (0.56 mA/cm2) in aqueous media at 32 °C. The kinetic release constants and the LH diffusion coefficients measured under electrical stimulus were ~1.5 and > 2.7 times higher for those measured for passive release. Finally, both semi-IPNs were non-haemolytic (haemolytic index ≤0.2%) and showed strong haemostatic activity (blood clotting index of ~12 ± 1%). Altogether, these results show that the prepared polycationic semi-IPN hydrogels presented advantageous mechanical, responsive and biological properties that enable them to be potentially employed for the design of new, safer, and advanced stimuli-responsive biomaterials for several biomedical applications such as haemostatic and wound healing dressings and iontophoretic patches.
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21
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Sripetch S, Loftsson T. Topical drug delivery to the posterior segment of the eye: Thermodynamic considerations. Int J Pharm 2021; 597:120332. [PMID: 33540025 DOI: 10.1016/j.ijpharm.2021.120332] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 01/22/2021] [Accepted: 01/27/2021] [Indexed: 12/16/2022]
Abstract
Almost all studies on non-invasive topical drug delivery to the eye have emphasized the importance of biological barriers, static membrane barriers such as the cornea and the conjunctiva/sclera and dynamic barriers such as the lacrimal drainage. Hardly any have discussed the importance of the thermodynamic activity of the permeating drug molecules. Most drugs permeate from the eye surface into the eye by passive diffusion where, according to Fick's first law, the drug concentration gradient over the various permeation barriers (e.g., the tear fluid and the lipophilic membrane barriers) is the driving force. At the barrier interphases the dissolved drug molecules must partition from one barrier to another. For example, at the tear-cornea interphase the drug molecules must partition from the aqueous exterior into the lipophilic membrane. The drug partition coefficient between two phases is commonly defined as the equilibrium concentration ratio. However, these are only approximations. The actual driving force in Fick's first law is the gradient of the chemical potential and the equilibrium between two phases is attained when the chemical potential of the drug in one phase is equal to that in the other phase. Here the importance of thermodynamic considerations in topical drug delivery to the eye is reviewed.
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Affiliation(s)
- Suppakan Sripetch
- Faculty of Pharmaceutical Sciences, University of Iceland, Hofsvallagata 53, IS-107 Reykjavik, Iceland
| | - Thorsteinn Loftsson
- Faculty of Pharmaceutical Sciences, University of Iceland, Hofsvallagata 53, IS-107 Reykjavik, Iceland.
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22
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Toffoletto N, Saramago B, Serro AP. Therapeutic Ophthalmic Lenses: A Review. Pharmaceutics 2020; 13:36. [PMID: 33379411 PMCID: PMC7824655 DOI: 10.3390/pharmaceutics13010036] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 12/09/2020] [Accepted: 12/17/2020] [Indexed: 12/17/2022] Open
Abstract
An increasing incidence of eye diseases has been registered in the last decades in developed countries due to the ageing of population, changes in lifestyle, environmental factors, and the presence of concomitant medical conditions. The increase of public awareness on ocular conditions leads to an early diagnosis and treatment, as well as an increased demand for more effective and minimally invasive solutions for the treatment of both the anterior and posterior segments of the eye. Despite being the most common route of ophthalmic drug administration, eye drops are associated with compliance issues, drug wastage by lacrimation, and low bioavailability due to the ocular barriers. In order to overcome these problems, the design of drug-eluting ophthalmic lenses constitutes a non-invasive and patient-friendly approach for the sustained drug delivery to the eye. Several examples of therapeutic contact lenses and intraocular lenses have been developed, by means of different strategies of drug loading, leading to promising results. This review aims to report the recent advances in the development of therapeutic ophthalmic lenses for the treatment and/or prophylaxis of eye pathologies (i.e., glaucoma, cataract, corneal diseases, or posterior segment diseases) and it gives an overview of the future perspectives and challenges in the field.
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Affiliation(s)
- Nadia Toffoletto
- Centro de Química Estrutural, Instituto Superior Técnico, University of Lisbon, Av. Rovisco Pais, 1049-001 Lisbon, Portugal; (B.S.); (A.P.S.)
| | - Benilde Saramago
- Centro de Química Estrutural, Instituto Superior Técnico, University of Lisbon, Av. Rovisco Pais, 1049-001 Lisbon, Portugal; (B.S.); (A.P.S.)
| | - Ana Paula Serro
- Centro de Química Estrutural, Instituto Superior Técnico, University of Lisbon, Av. Rovisco Pais, 1049-001 Lisbon, Portugal; (B.S.); (A.P.S.)
- Centro de Investigação Interdisciplinar Egas Moniz, Instituto Universitário Egas Moniz, Quinta da Granja, Monte de Caparica, 2829-511 Caparica, Portugal
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23
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Vigani B, Rossi S, Sandri G, Bonferoni MC, Caramella CM, Ferrari F. Recent Advances in the Development of In Situ Gelling Drug Delivery Systems for Non-Parenteral Administration Routes. Pharmaceutics 2020; 12:pharmaceutics12090859. [PMID: 32927595 PMCID: PMC7559482 DOI: 10.3390/pharmaceutics12090859] [Citation(s) in RCA: 74] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2020] [Revised: 08/25/2020] [Accepted: 09/02/2020] [Indexed: 12/27/2022] Open
Abstract
In situ gelling drug delivery systems have gained enormous attention over the last decade. They are in a sol-state before administration, and they are capable of forming gels in response to different endogenous stimuli, such as temperature increase, pH change and the presence of ions. Such systems can be administered through different routes, to achieve local or systemic drug delivery and can also be successfully used as vehicles for drug-loaded nano- and microparticles. Natural, synthetic and/or semi-synthetic polymers with in situ gelling behavior can be used alone, or in combination, for the preparation of such systems; the association with mucoadhesive polymers is highly desirable in order to further prolong the residence time at the site of action/absorption. In situ gelling systems include also solid polymeric formulations, generally obtained by freeze-drying, which, after contact with biological fluids, undergo a fast hydration with the formation of a gel able to release the drug loaded in a controlled manner. This review provides an overview of the in situ gelling drug delivery systems developed in the last 10 years for non-parenteral administration routes, such as ocular, nasal, buccal, gastrointestinal, vaginal and intravesical ones, with a special focus on formulation composition, polymer gelation mechanism and in vitro release studies.
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24
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Zhang X, Li S, Tang Y, Guo Y, Gao S. Intractable Ocular Diseases and Treatment Progress. AAPS PharmSciTech 2020; 21:236. [PMID: 32803351 DOI: 10.1208/s12249-020-01774-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Accepted: 07/27/2020] [Indexed: 12/12/2022] Open
Abstract
In recent years, with the aging of the population and the frequent use of electronic devices, many eye diseases have shown a linear upward trend, such as dry eye disease, glaucoma, cataract, age-related macular degeneration, and diabetic retinopathy. These diseases are often chronic and difficult to cure. Based on the structure and barrier of the human eye, this review describes the pathogenesis and treatments of several intractable eye diseases and summarizes the advanced ocular drug delivery systems to provide new treatment ideas for these diseases. Finally, we also look forward to the prospect of RNAi therapy in the treatment of eye diseases.
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25
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Jiang J, Zhang X, Tang Y, Li S, Chen J. Progress on ocular siRNA gene-silencing therapy and drug delivery systems. Fundam Clin Pharmacol 2020; 35:4-24. [PMID: 32298491 DOI: 10.1111/fcp.12561] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Revised: 03/24/2020] [Accepted: 04/10/2020] [Indexed: 12/14/2022]
Abstract
Age-related macular degeneration (AMD) and glaucoma are global ocular diseases with high blindness rate. RNA interference (RNAi) is being increasingly used in the treatment of these disorders with siRNA drugs, bevasiranib, AGN211745 and PF-04523655 for AMD, and SYL040012 and QPI-1007 for glaucoma. Administration routes and vectors of gene drugs affect their therapeutic effect. Compared with the non-viral vectors, viral vectors have limited payload capacity and potential immunogenicity. This review summarizes the progress of the ocular siRNA gene-silencing therapy by focusing on siRNA drugs for AMD and glaucoma already used in clinical research, the main routes of drug delivery and the non-viral vectors for siRNA drugs.
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Affiliation(s)
- Jinjin Jiang
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, No.1, DongQing Road, Guiyang, 550014, People's Republic of China.,Department of Pharmacy, China Pharmaceutical University, No.639, Longmian Avenue, Nanjing, 211198, People's Republic of China
| | - Xinru Zhang
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, No.1, DongQing Road, Guiyang, 550014, People's Republic of China.,Department of Pharmacy, China Pharmaceutical University, No.639, Longmian Avenue, Nanjing, 211198, People's Republic of China
| | - Yue Tang
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, No.1, DongQing Road, Guiyang, 550014, People's Republic of China.,Department of Pharmacy, China Pharmaceutical University, No.639, Longmian Avenue, Nanjing, 211198, People's Republic of China
| | - Shuhan Li
- Department of Pharmacy, China Pharmaceutical University, No.639, Longmian Avenue, Nanjing, 211198, People's Republic of China
| | - Jing Chen
- Department of Pharmacy, China Pharmaceutical University, No.639, Longmian Avenue, Nanjing, 211198, People's Republic of China
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Rapalli VK, Gorantla S, Waghule T, Mahmood A, Singh PP, Dubey SK, Saha RN, Singhvi G. Nanotherapies for the Treatment of Age-Related Macular Degeneration (AMD) Disease: Recent Advancements and Challenges. ACTA ACUST UNITED AC 2020; 13:283-290. [DOI: 10.2174/1872211314666200117095917] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Revised: 11/14/2019] [Accepted: 12/11/2019] [Indexed: 12/17/2022]
Abstract
Age-related Macular Degeneration (AMD) is one of the common diseases affecting the posterior
part of the eye, of a large population above 45 years old. Anti-Vascular Endothelial Growth Factor-
A (Anti-VEGF-A) agents have been considered and approved as therapeutic agents for the treatment
of AMD. Due to the large molecular weight and poor permeability through various eye membranes,
VEGF-A inhibitors are given through an intravitreal injection, even though the delivery of small therapeutic
molecules by topical application to the posterior part of the eye exhibits challenges in the treatment.
To overcome these limitations, nanocarrier based delivery systems have been utilized to a large
extent for the delivery of therapeutics. Nanocarriers system offers prodigious benefits for the delivery of
therapeutics to the posterior part of the eye in both invasive and non-invasive techniques. The nano size
can improve the permeation of therapeutic agent across the biological membranes. They provide protection
from enzymes present at the site, targeted delivery or binding with the disease site and extend the
release of therapeutic agents with prolonged retention. This leads to improved therapeutic efficacy, patient
compliance, and cost effectiveness of therapy with minimum dose associated side-effects. This
review has summarized various nanocarriers explored for the treatment of AMD and challenges in
translation.
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Affiliation(s)
- Vamshi Krishna Rapalli
- Department of Pharmacy, Birla Institute of Technology and Science (BITS), Pilani, Pilani Campus, Rajasthan 333031, India
| | - Srividya Gorantla
- Department of Pharmacy, Birla Institute of Technology and Science (BITS), Pilani, Pilani Campus, Rajasthan 333031, India
| | - Tejashree Waghule
- Department of Pharmacy, Birla Institute of Technology and Science (BITS), Pilani, Pilani Campus, Rajasthan 333031, India
| | - Arisha Mahmood
- Department of Pharmacy, Birla Institute of Technology and Science (BITS), Pilani, Pilani Campus, Rajasthan 333031, India
| | - Prem Prakash Singh
- Formulation development, Slayback Pharma India LLP, Hyderabad 500072, Telangana, India
| | - Sunil Kumar Dubey
- Department of Pharmacy, Birla Institute of Technology and Science (BITS), Pilani, Pilani Campus, Rajasthan 333031, India
| | - Ranendra Narayan Saha
- Department of Pharmacy, Birla Institute of Technology and Science (BITS), Pilani, Pilani Campus, Rajasthan 333031, India
| | - Gautam Singhvi
- Department of Pharmacy, Birla Institute of Technology and Science (BITS), Pilani, Pilani Campus, Rajasthan 333031, India
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Varela-Fernández R, Díaz-Tomé V, Luaces-Rodríguez A, Conde-Penedo A, García-Otero X, Luzardo-Álvarez A, Fernández-Ferreiro A, Otero-Espinar FJ. Drug Delivery to the Posterior Segment of the Eye: Biopharmaceutic and Pharmacokinetic Considerations. Pharmaceutics 2020; 12:E269. [PMID: 32188045 PMCID: PMC7151081 DOI: 10.3390/pharmaceutics12030269] [Citation(s) in RCA: 177] [Impact Index Per Article: 44.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Revised: 03/06/2020] [Accepted: 03/11/2020] [Indexed: 01/22/2023] Open
Abstract
The treatment of the posterior-segment ocular diseases, such as age-related eye diseases (AMD) or diabetic retinopathy (DR), present a challenge for ophthalmologists due to the complex anatomy and physiology of the eye. This specialized organ is composed of various static and dynamic barriers that restrict drug delivery into the target site of action. Despite numerous efforts, effective intraocular drug delivery remains unresolved and, therefore, it is highly desirable to improve the current treatments of diseases affecting the posterior cavity. This review article gives an overview of pharmacokinetic and biopharmaceutics aspects for the most commonly-used ocular administration routes (intravitreal, topical, systemic, and periocular), including information of the absorption, distribution, and elimination, as well as the benefits and limitations of each one. This article also encompasses different conventional and novel drug delivery systems designed and developed to improve drug pharmacokinetics intended for the posterior ocular segment treatment.
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Affiliation(s)
- Rubén Varela-Fernández
- Department of Pharmacology, Pharmacy and Pharmaceutical Technology, University of Santiago de Compostela (USC), Campus vida, 15782 Santiago de Compostela, Spain; (R.V.-F.); (V.D.-T.); (A.L.-R.); (A.C.-P.); (X.G.-O.); (A.L.-Á.)
- Clinical Neurosciences Group, University Clinical Hospital, Health Research Institute of Santiago de Compostela (IDIS), Travesía da Choupana s/n, 15706 Santiago de Compostela, Spain
| | - Victoria Díaz-Tomé
- Department of Pharmacology, Pharmacy and Pharmaceutical Technology, University of Santiago de Compostela (USC), Campus vida, 15782 Santiago de Compostela, Spain; (R.V.-F.); (V.D.-T.); (A.L.-R.); (A.C.-P.); (X.G.-O.); (A.L.-Á.)
- Clinical Pharmacology Group, University Clinical Hospital, Health Research Institute of Santiago de Compostela (IDIS), Travesía da Choupana s/n, 15706 Santiago de Compostela, Spain
| | - Andrea Luaces-Rodríguez
- Department of Pharmacology, Pharmacy and Pharmaceutical Technology, University of Santiago de Compostela (USC), Campus vida, 15782 Santiago de Compostela, Spain; (R.V.-F.); (V.D.-T.); (A.L.-R.); (A.C.-P.); (X.G.-O.); (A.L.-Á.)
- Clinical Pharmacology Group, University Clinical Hospital, Health Research Institute of Santiago de Compostela (IDIS), Travesía da Choupana s/n, 15706 Santiago de Compostela, Spain
| | - Andrea Conde-Penedo
- Department of Pharmacology, Pharmacy and Pharmaceutical Technology, University of Santiago de Compostela (USC), Campus vida, 15782 Santiago de Compostela, Spain; (R.V.-F.); (V.D.-T.); (A.L.-R.); (A.C.-P.); (X.G.-O.); (A.L.-Á.)
- Paraquasil Group, Health Research Institute of Santiago de Compostela (IDIS), Travesía da Choupana s/n, 15706 Santiago de Compostela, Spain
| | - Xurxo García-Otero
- Department of Pharmacology, Pharmacy and Pharmaceutical Technology, University of Santiago de Compostela (USC), Campus vida, 15782 Santiago de Compostela, Spain; (R.V.-F.); (V.D.-T.); (A.L.-R.); (A.C.-P.); (X.G.-O.); (A.L.-Á.)
- Molecular Imaging Group. University Clinical Hospital, Health Research Institute of Santiago de Compostela (IDIS), Travesía da Choupana s/n, 15706 Santiago de Compostela, Spain
| | - Asteria Luzardo-Álvarez
- Department of Pharmacology, Pharmacy and Pharmaceutical Technology, University of Santiago de Compostela (USC), Campus vida, 15782 Santiago de Compostela, Spain; (R.V.-F.); (V.D.-T.); (A.L.-R.); (A.C.-P.); (X.G.-O.); (A.L.-Á.)
- Paraquasil Group, Health Research Institute of Santiago de Compostela (IDIS), Travesía da Choupana s/n, 15706 Santiago de Compostela, Spain
| | - Anxo Fernández-Ferreiro
- Department of Pharmacology, Pharmacy and Pharmaceutical Technology, University of Santiago de Compostela (USC), Campus vida, 15782 Santiago de Compostela, Spain; (R.V.-F.); (V.D.-T.); (A.L.-R.); (A.C.-P.); (X.G.-O.); (A.L.-Á.)
- Clinical Pharmacology Group, University Clinical Hospital, Health Research Institute of Santiago de Compostela (IDIS), Travesía da Choupana s/n, 15706 Santiago de Compostela, Spain
| | - Francisco J. Otero-Espinar
- Department of Pharmacology, Pharmacy and Pharmaceutical Technology, University of Santiago de Compostela (USC), Campus vida, 15782 Santiago de Compostela, Spain; (R.V.-F.); (V.D.-T.); (A.L.-R.); (A.C.-P.); (X.G.-O.); (A.L.-Á.)
- Paraquasil Group, Health Research Institute of Santiago de Compostela (IDIS), Travesía da Choupana s/n, 15706 Santiago de Compostela, Spain
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Functional chitosan oligosaccharide nanomicelles for topical ocular drug delivery of dexamethasone. Carbohydr Polym 2020; 227:115356. [DOI: 10.1016/j.carbpol.2019.115356] [Citation(s) in RCA: 60] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Revised: 09/04/2019] [Accepted: 09/19/2019] [Indexed: 12/21/2022]
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Peters MCC, Santos Neto ED, Monteiro LM, Yukuyama MN, Machado MGM, de Oliveira IF, Zanin MHA, Löbenberg R, Bou-Chacra N. Advances in ophthalmic preparation: the role of drug nanocrystals and lipid-based nanosystems. J Drug Target 2019; 28:259-270. [PMID: 31491352 DOI: 10.1080/1061186x.2019.1663858] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Nanocrystals and lipid-based nanosystems have the potential to play a crucial role in a significant shift in the treatment of ophthalmic diseases. These drug delivery systems allow overcoming the barriers imposed by anatomy and physiology of the organ of vision. This review aims to present new perspectives for these innovative preparations, emphasising the applications of the nanocrystal and lipid-based nanosystem while outlining their advantages and the drawbacks. The in vivo performance of the lipid-based nanosystems was highlighted. Lipid-based nanosystems and nanocrystals showed a prolonged effect, improved ocular bioavailability, upper therapeutic efficacy, higher permeation, prolonged residence time, and sustained drug release, compared to the current applications. Well-established and innovative developments updates of these systems are highlighted herein.
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Affiliation(s)
| | - Edson Dos Santos Neto
- Ophthalmology Division, Clinical Hospital of the Faculty of Medicine, University of São Paulo, São Paulo, Brazil
| | - Lis Marie Monteiro
- Faculty of Pharmaceutical Sciences, Department of Pharmacy, University of Sao Paulo, São Paulo, Brazil
| | - Megumi Nishitani Yukuyama
- Faculty of Pharmaceutical Sciences, Department of Pharmacy, University of Sao Paulo, São Paulo, Brazil
| | | | | | | | - Raimar Löbenberg
- Division of Pharmaceutical Sciences, Faculty of Pharmacy & Pharmaceutical Sciences, Katz Group-Rexall Centre for Pharmacy & Health Research, University of Alberta, Edmonton, Canada
| | - Nádia Bou-Chacra
- Faculty of Pharmaceutical Sciences, Department of Pharmacy, University of Sao Paulo, São Paulo, Brazil
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Cabrera FJ, Wang DC, Reddy K, Acharya G, Shin CS. Challenges and opportunities for drug delivery to the posterior of the eye. Drug Discov Today 2019; 24:1679-1684. [PMID: 31175955 PMCID: PMC6708448 DOI: 10.1016/j.drudis.2019.05.035] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Revised: 03/11/2019] [Accepted: 05/31/2019] [Indexed: 01/21/2023]
Abstract
Drug delivery to the posterior segment of the eye remains challenging even though the eye is readily accessible. Its unique and complex anatomy and physiology contribute to the limited options for drug delivery via non-invasive topical treatment, which is the prevalent ophthalmic treatment. To treat the most common retinal diseases, intravitreal (IVT) injection has been a common and effective therapy. With the advancement of nanotechnologies, novel formulations and drug delivery systems are being developed to treat posterior segment diseases. Here, we discuss the recent advancement in ocular delivery systems, including-sustained release formulations, IVT implants, and preclinical topical formulations, and the challenges faced in their clinical translation.
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Affiliation(s)
- Fernando J Cabrera
- Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, TX 77030, USA
| | - Daniel C Wang
- Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, TX 77030, USA
| | - Kartik Reddy
- Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, TX 77030, USA
| | - Ghanashyam Acharya
- Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, TX 77030, USA; Department of Ophthalmology, Baylor College of Medicine, Houston, TX 77030, USA
| | - Crystal S Shin
- Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, TX 77030, USA.
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31
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Alméciga-Diaz CJ, Hidalgo OA, Olarte-Avellaneda S, Rodríguez-López A, Guzman E, Garzón R, Pimentel-Vera LN, Puentes-Tellez MA, Rojas-Rodriguez AF, Gorshkov K, Li R, Zheng W. Identification of Ezetimibe and Pranlukast as Pharmacological Chaperones for the Treatment of the Rare Disease Mucopolysaccharidosis Type IVA. J Med Chem 2019; 62:6175-6189. [PMID: 31188588 PMCID: PMC11292729 DOI: 10.1021/acs.jmedchem.9b00428] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Mucopolysaccharidosis type IVA (MPS IVA) is a rare disease caused by mutations in the gene encoding the lysosomal enzyme N-acetylgalactosamine-6-sulfate sulfatase (GALNS). We report here two GALNS pharmacological chaperones, ezetimibe and pranlukast, identified by molecular docking-based virtual screening. These compounds bound to the active cavity of GALNS and increased its thermal stability as well as the production of recombinant GALNS in bacteria, yeast, and HEK293 cells. MPS IVA fibroblasts treated with these chaperones exhibited increases in GALNS protein and enzyme activity and reduced the size of enlarged lysosomes. Abnormalities in autophagy markers p62 and LC3B-II were alleviated by ezetimibe and pranlukast. Combined treatment of recombinant GALNS with ezetimibe or pranlukast produced an additive effect. Altogether, the results demonstrate that ezetimibe and pranlukast can increase the yield of recombinant GALNS and be used as a monotherapy or combination therapy to improve the therapeutic efficacy of MPS IVA enzyme replacement therapy.
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Affiliation(s)
- Carlos J. Alméciga-Diaz
- Institute for the Study of Inborn Errors of Metabolism, Faculty of Science, Pontificia Universidad Javeriana, Bogotá D.C., 110231, Colombia
| | - Oscar A. Hidalgo
- Institute for the Study of Inborn Errors of Metabolism, Faculty of Science, Pontificia Universidad Javeriana, Bogotá D.C., 110231, Colombia
| | - Sergio Olarte-Avellaneda
- Institute for the Study of Inborn Errors of Metabolism, Faculty of Science, Pontificia Universidad Javeriana, Bogotá D.C., 110231, Colombia
- Pharmacy Department, Faculty of Science, Universidad Nacional de Colombia, Bogotá D.C., 111321, Colombia
| | - Alexander Rodríguez-López
- Institute for the Study of Inborn Errors of Metabolism, Faculty of Science, Pontificia Universidad Javeriana, Bogotá D.C., 110231, Colombia
- Chemistry Department, Faculty of Science, Pontificia Universidad Javeriana, Bogotá D.C., 110231, Colombia
| | - Esteban Guzman
- Institute for the Study of Inborn Errors of Metabolism, Faculty of Science, Pontificia Universidad Javeriana, Bogotá D.C., 110231, Colombia
| | - Rafael Garzón
- Institute for the Study of Inborn Errors of Metabolism, Faculty of Science, Pontificia Universidad Javeriana, Bogotá D.C., 110231, Colombia
| | - Luisa Natalia Pimentel-Vera
- Institute for the Study of Inborn Errors of Metabolism, Faculty of Science, Pontificia Universidad Javeriana, Bogotá D.C., 110231, Colombia
| | - María Alejandra Puentes-Tellez
- Institute for the Study of Inborn Errors of Metabolism, Faculty of Science, Pontificia Universidad Javeriana, Bogotá D.C., 110231, Colombia
| | - Andrés Felipe Rojas-Rodriguez
- Computational and Structural Biochemistry, Departamento de Nutrición y Bioquímica, Faculty of Science, Pontificia Universidad Javeriana, Bogotá D.C., 110231, Colombia
| | - Kirill Gorshkov
- National Center for Advancing Translational Sciences, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Rong Li
- National Center for Advancing Translational Sciences, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Wei Zheng
- National Center for Advancing Translational Sciences, National Institutes of Health, Bethesda, MD, 20892, USA
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32
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Soliman KA, Ullah K, Shah A, Jones DS, Singh TRR. Poloxamer-based in situ gelling thermoresponsive systems for ocular drug delivery applications. Drug Discov Today 2019; 24:1575-1586. [PMID: 31175956 DOI: 10.1016/j.drudis.2019.05.036] [Citation(s) in RCA: 78] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Revised: 04/15/2019] [Accepted: 05/31/2019] [Indexed: 02/06/2023]
Abstract
In situ gels have recently received interest as ocular drug delivery vehicles because they combine the merits of easy instillation and sustained drug release. In this review, we focus on the use of poloxamers as in situ gelling systems in ocular drug delivery because of their thermoresponsive gelling behaviour, biocompatibility, and ease of sterilisation. Furthermore, the sol-gel transition temperature, mucoadhesive properties, and drug release profiles of poloxamer-based in situ gels can be finely tuned, enabling them to be used as vehicles for the delivery of small and large drug molecules to treat diseases of the anterior and posterior segments of the eye. Poloxamer-based ocular products have already found their way to the pharmaceutical market, but remain a potential arena for further investigation and commercial exploitation.
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Affiliation(s)
- Karim A Soliman
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, UK
| | - K Ullah
- Department of Pharmacy, COMSATS University Islamabad, Abottabad Campus, Pakistan
| | - A Shah
- Department of Pharmacy, COMSATS University Islamabad, Abottabad Campus, Pakistan
| | - David S Jones
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, UK
| | - Thakur R R Singh
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, UK.
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33
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Gu Y, Xu C, Wang Y, Zhou X, Fang L, Cao F. Multifunctional Nanocomposites Based on Liposomes and Layered Double Hydroxides Conjugated with Glycylsarcosine for Efficient Topical Drug Delivery to the Posterior Segment of the Eye. Mol Pharm 2019; 16:2845-2857. [DOI: 10.1021/acs.molpharmaceut.8b01136] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Yan Gu
- Department of Pharmaceutical, School of Pharmacy, China Pharmaceutical University, 24 Tongjia Xiang, Nanjing 210009, China
- Parexel China Co., Ltd., No.488, Middle Yincheng Road, Pudong, Shanghai 200120, China
| | - Chen Xu
- Department of Pharmaceutical, School of Pharmacy, China Pharmaceutical University, 24 Tongjia Xiang, Nanjing 210009, China
| | - Yanyan Wang
- Department of Pharmaceutical, School of Pharmacy, China Pharmaceutical University, 24 Tongjia Xiang, Nanjing 210009, China
| | - Xiangying Zhou
- Department of Pharmaceutical, School of Pharmacy, China Pharmaceutical University, 24 Tongjia Xiang, Nanjing 210009, China
| | - Lei Fang
- Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research and School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China
| | - Feng Cao
- Department of Pharmaceutical, School of Pharmacy, China Pharmaceutical University, 24 Tongjia Xiang, Nanjing 210009, China
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The Role of Surface Active Agents in Ophthalmic Drug Delivery: A Comprehensive Review. J Pharm Sci 2019; 108:1923-1933. [PMID: 30684539 DOI: 10.1016/j.xphs.2019.01.016] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Revised: 01/14/2019] [Accepted: 01/15/2019] [Indexed: 12/11/2022]
Abstract
With the significant advances made in nanotechnology, research efforts focused on developing novel drug delivery platforms that can overcome the multitude of challenges encountered in ophthalmic drug delivery. Surface active agents (SAAs) have been extensively used for the formulation of many of the dosage forms targeting ocular tissues. Novel ophthalmic carriers utilizing SAAs were broadly classified into particulate, vesicular, and controlled release drug delivery systems. Depending on their physicochemical properties, SAAs can perform a variety of roles ranging from wetting agents, emulsifiers, stabilizers, charge inducers, solubilizers, antimicrobial agents, corneal permeation enhancers, and gelling agents. Nevertheless, their use is limited by their potential toxicity and possible interactions with other formulation ingredients. This review provides a comprehensive analysis of the different functional roles of SAAs in novel ophthalmic drug delivery platforms, their mechanism of action, and limitations that need to be considered during formulation to maximize their potential benefit. Understanding the mechanisms by which they perform their different roles and the possible interactions between SAAs and other formulation ingredients can help orientate the choice of formulators toward the SAA most suitable for the intended ocular application at a concentration that is both safe and effective.
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36
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Liu D, Wan B, Qi J, Dong X, Zhao W, Wu W, Dai Y, Lu Y, Chen Z. Permeation into but not across the cornea: Bioimaging of intact nanoemulsions and nanosuspensions using aggregation-caused quenching probes. CHINESE CHEM LETT 2018. [DOI: 10.1016/j.cclet.2018.11.015] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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37
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Wang Y, Xu X, Gu Y, Cheng Y, Cao F. Recent advance of nanoparticle-based topical drug delivery to the posterior segment of the eye. Expert Opin Drug Deliv 2018; 15:687-701. [PMID: 29985660 DOI: 10.1080/17425247.2018.1496080] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
INTRODUCTION Considering that the number of patients afflicted by posterior eye diseases is increasing, effective drug delivery is currently in high clinical demand. Topical administration has been identified as the preferred option, while sufferingfrom multiple barriers. The development of nanoparticle-based drug delivery system provides an option, which would enhance the drug permeability across the barriers and achieve the desired drug level in the targeted tissue. AREAS COVERED This review highlights the barrier to the posterior segment of the eye via topical administration. The up-to-date development of lipid nanoparticles, liposomes, emulsions, spanlastics, micelles, polymeric nanoparticles, layered double hydroxides (LDH), dendrimers, cyclodextrins(CDs), and prodrugs are summarized. Moreover, nanocarriers currently in clinical trials for posterior segment diseases have been discussed. EXPERT OPINION Topical nanoparticle-based drug delivery systems have demonstrated significant progress. An ideal formulation should prolong retention time on the surface, enhance drug permeability through the ocular tissues, and efficiently deliver drugs to the targeted site. To design the rational targeting nanoparticle-based drug delivery system, a better understanding of the distribution of transporters and receptors on the eye is required. Ultimately, there is an urgent need to develop targeting hybrid drug delivery systems with the combination of the advantages of several nanocarriers.
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Affiliation(s)
- Yanyan Wang
- a Department of Pharmaceutical, School of Pharmacy , China Pharmaceutical University , Nanjing , China
| | - Xiaoyue Xu
- a Department of Pharmaceutical, School of Pharmacy , China Pharmaceutical University , Nanjing , China
| | - Yan Gu
- a Department of Pharmaceutical, School of Pharmacy , China Pharmaceutical University , Nanjing , China
| | - Yanju Cheng
- b Department of Biologics R&D Center , Chia Tai Tianqing Pharmaceutical Group Co. Ltd , Nanjing , China
| | - Feng Cao
- a Department of Pharmaceutical, School of Pharmacy , China Pharmaceutical University , Nanjing , China
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